From 9c59d474479d21ba08ac5c2ef49b77557493c3fb Mon Sep 17 00:00:00 2001
From: Jan Arve Saether <jan-arve.saether@digia.com>
Date: Thu, 28 Feb 2013 13:00:16 +0100
Subject: [PATCH] Change the layout engine of RowLayout and ColumnLayout.
It now uses the gridlayoutengine from graphicsview, which
also gives us a well tested grid layout engine almost for
free.
Change-Id: I939ae4d2b321c8079935ff3374e8e5d10d02384b
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>
---
examples/ApplicationTemplate/qml/main.qml | 1 +
examples/gallery/main.qml | 1 +
examples/splitters/main.qml | 1 +
src/controls/ApplicationWindow.qml | 2 +
src/controls/SplitView.qml | 1 +
src/controls/plugin.cpp | 6 -
src/controls/plugin.pri | 6 -
src/controls/plugins.qmltypes | 43 -
src/controls/qquicklayout_p.h | 142 --
src/controls/qquicklayoutengine.cpp | 295 ---
src/controls/qquicklinearlayout.cpp | 270 ---
src/controls/qquicklinearlayout_p.h | 116 --
src/layouts/.gitattributes | 1 +
src/layouts/layouts.pro | 26 +
.../plugin.cpp} | 57 +-
src/layouts/plugin.json | 1 +
src/layouts/plugins.qmltypes | Bin 0 -> 3554 bytes
src/layouts/qgridlayoutengine.cpp | 1678 +++++++++++++++++
src/layouts/qgridlayoutengine_p.h | 559 ++++++
src/layouts/qlayoutpolicy.cpp | 136 ++
src/layouts/qlayoutpolicy_p.h | 180 ++
src/layouts/qmldir | 3 +
src/layouts/qquickgridlayoutengine_p.h | 326 ++++
src/{controls => layouts}/qquicklayout.cpp | 150 +-
src/layouts/qquicklayout_p.h | 220 +++
src/layouts/qquicklinearlayout.cpp | 426 +++++
src/layouts/qquicklinearlayout_p.h | 199 ++
src/src.pro | 2 +
tests/manual/Layout.qml | 280 ++-
tests/manual/scrollbars.qml | 1 +
.../testbench/content/PropertyLayouts.qml | 1 +
tests/manual/testbench/main.qml | 1 +
32 files changed, 4125 insertions(+), 1006 deletions(-)
delete mode 100644 src/controls/qquicklayout_p.h
delete mode 100644 src/controls/qquicklayoutengine.cpp
delete mode 100644 src/controls/qquicklinearlayout.cpp
delete mode 100644 src/controls/qquicklinearlayout_p.h
create mode 100644 src/layouts/.gitattributes
create mode 100644 src/layouts/layouts.pro
rename src/{controls/qquicklayoutengine_p.h => layouts/plugin.cpp} (66%)
create mode 100644 src/layouts/plugin.json
create mode 100644 src/layouts/plugins.qmltypes
create mode 100644 src/layouts/qgridlayoutengine.cpp
create mode 100644 src/layouts/qgridlayoutengine_p.h
create mode 100644 src/layouts/qlayoutpolicy.cpp
create mode 100644 src/layouts/qlayoutpolicy_p.h
create mode 100644 src/layouts/qmldir
create mode 100644 src/layouts/qquickgridlayoutengine_p.h
rename src/{controls => layouts}/qquicklayout.cpp (50%)
create mode 100644 src/layouts/qquicklayout_p.h
create mode 100644 src/layouts/qquicklinearlayout.cpp
create mode 100644 src/layouts/qquicklinearlayout_p.h
diff --git a/examples/ApplicationTemplate/qml/main.qml b/examples/ApplicationTemplate/qml/main.qml
index d5304784f..510f6bfa6 100644
--- a/examples/ApplicationTemplate/qml/main.qml
+++ b/examples/ApplicationTemplate/qml/main.qml
@@ -43,6 +43,7 @@
import QtQuick.Controls 1.0
+import QtQuick.Layouts 1.0
ApplicationWindow {
width: 640
diff --git a/examples/gallery/main.qml b/examples/gallery/main.qml
index 1fc069813..3b5e1a7c1 100644
--- a/examples/gallery/main.qml
+++ b/examples/gallery/main.qml
@@ -44,6 +44,7 @@
import QtQuick 2.0
import QtQuick.Controls 1.0
+import QtQuick.Layouts 1.0
import QtQuick.Controls.Private 1.0
import "content"
diff --git a/examples/splitters/main.qml b/examples/splitters/main.qml
index dfacadaa3..0d35ae71f 100644
--- a/examples/splitters/main.qml
+++ b/examples/splitters/main.qml
@@ -44,6 +44,7 @@
import QtQuick 2.0
import QtQuick.Controls 1.0
+import QtQuick.Layouts 1.0
ApplicationWindow {
width: 600
diff --git a/src/controls/ApplicationWindow.qml b/src/controls/ApplicationWindow.qml
index d483a0750..9fa5c3741 100644
--- a/src/controls/ApplicationWindow.qml
+++ b/src/controls/ApplicationWindow.qml
@@ -41,6 +41,8 @@
import QtQuick 2.0
import QtQuick.Window 2.0
import QtQuick.Controls 1.0
+import QtQuick.Layouts 1.0
+import QtQuick.Controls.Private 1.0
/*!
\qmltype ApplicationWindow
diff --git a/src/controls/SplitView.qml b/src/controls/SplitView.qml
index 3b226ac2f..ac858258e 100644
--- a/src/controls/SplitView.qml
+++ b/src/controls/SplitView.qml
@@ -40,6 +40,7 @@
import QtQuick 2.0
import QtQuick.Controls 1.0
+import QtQuick.Layouts 1.0
import QtQuick.Controls.Private 1.0 as Private
/*!
diff --git a/src/controls/plugin.cpp b/src/controls/plugin.cpp
index b81347c08..20d2f394f 100644
--- a/src/controls/plugin.cpp
+++ b/src/controls/plugin.cpp
@@ -44,7 +44,6 @@
#include "qtexclusivegroup_p.h"
#include "qtmenu_p.h"
#include "qtmenubar_p.h"
-#include "qquicklinearlayout_p.h"
#include "qpagestatus.h"
#include <qimage.h>
@@ -87,11 +86,6 @@ void StylePlugin::registerTypes(const char *uri)
qmlRegisterUncreatableType<QtMenuBase>(uri, 1, 0, "MenuBase",
QLatin1String("Do not create objects of type MenuBase"));
- qmlRegisterType<QQuickComponentsRowLayout>(uri, 1, 0, "RowLayout");
- qmlRegisterType<QQuickComponentsColumnLayout>(uri, 1, 0, "ColumnLayout");
- qmlRegisterUncreatableType<QQuickComponentsLayout>(uri, 1, 0, "Layout",
- QLatin1String("Do not create objects of type Layout"));
-
qmlRegisterUncreatableType<QPageStatus>(uri, 1, 0, "PageStatus", QLatin1String("Do not create objects of type PageStatus"));
}
diff --git a/src/controls/plugin.pri b/src/controls/plugin.pri
index 5637e75cc..338645e49 100644
--- a/src/controls/plugin.pri
+++ b/src/controls/plugin.pri
@@ -1,7 +1,4 @@
HEADERS += \
- $$PWD/qquicklayout_p.h \
- $$PWD/qquicklayoutengine_p.h \
- $$PWD/qquicklinearlayout_p.h \
$$PWD/plugin_p.h \
$$PWD/qtaction_p.h \
$$PWD/qtexclusivegroup_p.h \
@@ -12,9 +9,6 @@ HEADERS += \
$$PWD/qpagestatus.h
SOURCES += \
- $$PWD/qquicklayout.cpp \
- $$PWD/qquicklayoutengine.cpp \
- $$PWD/qquicklinearlayout.cpp \
$$PWD/plugin.cpp \
$$PWD/qtaction.cpp \
$$PWD/qtexclusivegroup.cpp \
diff --git a/src/controls/plugins.qmltypes b/src/controls/plugins.qmltypes
index 1e8d179df..1cfb3477d 100644
--- a/src/controls/plugins.qmltypes
+++ b/src/controls/plugins.qmltypes
@@ -20,49 +20,6 @@ Module {
}
}
}
- Component {
- name: "QQuickComponentsColumnLayout"
- defaultProperty: "data"
- prototype: "QQuickComponentsLinearLayout"
- exports: ["ColumnLayout 1.0"]
- }
- Component {
- name: "QQuickComponentsLayout"
- defaultProperty: "data"
- prototype: "QQuickItem"
- exports: ["Layout 1.0"]
- attachedType: "QQuickComponentsLayoutAttached"
- Enum {
- name: "SizePolicy"
- values: {
- "Fixed": 0,
- "Expanding": 1
- }
- }
- }
- Component {
- name: "QQuickComponentsLayoutAttached"
- prototype: "QObject"
- Property { name: "minimumWidth"; type: "double" }
- Property { name: "minimumHeight"; type: "double" }
- Property { name: "maximumWidth"; type: "double" }
- Property { name: "maximumHeight"; type: "double" }
- Property { name: "verticalSizePolicy"; type: "QQuickComponentsLayout::SizePolicy" }
- Property { name: "horizontalSizePolicy"; type: "QQuickComponentsLayout::SizePolicy" }
- }
- Component {
- name: "QQuickComponentsLinearLayout"
- defaultProperty: "data"
- prototype: "QQuickComponentsLayout"
- Property { name: "spacing"; type: "double" }
- Signal { name: "orientationChanged" }
- }
- Component {
- name: "QQuickComponentsRowLayout"
- defaultProperty: "data"
- prototype: "QQuickComponentsLinearLayout"
- exports: ["RowLayout 1.0"]
- }
Component {
name: "QtAction"
prototype: "QObject"
diff --git a/src/controls/qquicklayout_p.h b/src/controls/qquicklayout_p.h
deleted file mode 100644
index f8f88657c..000000000
--- a/src/controls/qquicklayout_p.h
+++ /dev/null
@@ -1,142 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the Qt Quick Controls module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia. For licensing terms and
-** conditions see http://qt.digia.com/licensing. For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights. These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QQUICKLAYOUT_P_H
-#define QQUICKLAYOUT_P_H
-
-#include <QPointer>
-#include <QQuickItem>
-
-QT_BEGIN_NAMESPACE
-
-class QQuickComponentsLayoutAttached;
-
-
-class QQuickComponentsLayout : public QQuickItem
-{
- Q_OBJECT
- Q_ENUMS(SizePolicy)
-
-public:
- enum SizePolicy {
- Fixed,
- Expanding
- };
-
- explicit QQuickComponentsLayout(QQuickItem *parent = 0);
- ~QQuickComponentsLayout();
-
- static QQuickComponentsLayoutAttached *qmlAttachedProperties(QObject *object);
-
-protected:
- void invalidate();
- bool event(QEvent *e);
- void reconfigureTopDown();
- virtual void reconfigureLayout();
- void setupItemLayout(QQuickItem *item);
-
-private:
- bool m_dirty;
-
- friend class QQuickComponentsLayoutAttached;
-};
-
-
-class QQuickComponentsLayoutAttached : public QObject
-{
- Q_OBJECT
- Q_PROPERTY(qreal minimumWidth READ minimumWidth WRITE setMinimumWidth NOTIFY minimumWidthChanged)
- Q_PROPERTY(qreal minimumHeight READ minimumHeight WRITE setMinimumHeight NOTIFY minimumHeightChanged)
- Q_PROPERTY(qreal maximumWidth READ maximumWidth WRITE setMaximumWidth NOTIFY maximumWidthChanged)
- Q_PROPERTY(qreal maximumHeight READ maximumHeight WRITE setMaximumHeight NOTIFY maximumHeightChanged)
- Q_PROPERTY(QQuickComponentsLayout::SizePolicy verticalSizePolicy READ verticalSizePolicy WRITE setVerticalSizePolicy NOTIFY verticalSizePolicyChanged)
- Q_PROPERTY(QQuickComponentsLayout::SizePolicy horizontalSizePolicy READ horizontalSizePolicy WRITE setHorizontalSizePolicy NOTIFY horizontalSizePolicyChanged)
-
-public:
- QQuickComponentsLayoutAttached(QObject *object);
-
- qreal minimumWidth() const { return m_minimumWidth; }
- void setMinimumWidth(qreal width);
-
- qreal minimumHeight() const { return m_minimumHeight; }
- void setMinimumHeight(qreal height);
-
- qreal maximumWidth() const { return m_maximumWidth; }
- void setMaximumWidth(qreal width);
-
- qreal maximumHeight() const { return m_maximumHeight; }
- void setMaximumHeight(qreal height);
-
- QQuickComponentsLayout::SizePolicy verticalSizePolicy() const { return m_verticalSizePolicy; }
- void setVerticalSizePolicy(QQuickComponentsLayout::SizePolicy policy);
-
- QQuickComponentsLayout::SizePolicy horizontalSizePolicy() const { return m_horizontalSizePolicy; }
- void setHorizontalSizePolicy(QQuickComponentsLayout::SizePolicy policy);
-
-signals:
- void minimumWidthChanged();
- void minimumHeightChanged();
- void maximumWidthChanged();
- void maximumHeightChanged();
- void verticalSizePolicyChanged();
- void horizontalSizePolicyChanged();
-
-protected:
- void updateLayout();
-
-private:
- qreal m_minimumWidth;
- qreal m_minimumHeight;
- qreal m_maximumWidth;
- qreal m_maximumHeight;
- QQuickComponentsLayout::SizePolicy m_verticalSizePolicy;
- QQuickComponentsLayout::SizePolicy m_horizontalSizePolicy;
- QPointer<QQuickComponentsLayout> m_layout;
-
- friend class QQuickComponentsLayout;
-};
-
-QT_END_NAMESPACE
-
-QML_DECLARE_TYPE(QQuickComponentsLayout)
-QML_DECLARE_TYPEINFO(QQuickComponentsLayout, QML_HAS_ATTACHED_PROPERTIES)
-
-#endif // QQUICKLAYOUT_P_H
diff --git a/src/controls/qquicklayoutengine.cpp b/src/controls/qquicklayoutengine.cpp
deleted file mode 100644
index 1811b4535..000000000
--- a/src/controls/qquicklayoutengine.cpp
+++ /dev/null
@@ -1,295 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the Qt Quick Controls module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia. For licensing terms and
-** conditions see http://qt.digia.com/licensing. For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights. These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qquicklayoutengine_p.h"
-
-QT_BEGIN_NAMESPACE
-
-/*
- This function is a modification of qGeomCalc() included in "QtCore/kernel/qlayoutengine_p.h".
- It is used as a helper function to handle linear layout recalculations for QQuickItems.
-
- chain contains input and output parameters describing the geometry.
- count is the count of items in the chain; pos and space give the
- interval (relative to parentWidget topLeft).
-*/
-void qDeclarativeLayoutCalculate(QVector<QQuickComponentsLayoutInfo> &chain, int start,
- int count, qreal pos, qreal space, qreal spacer)
-{
- if (chain.count() == 0)
- return;
-
- bool wannaGrow = false;
- qreal totalStretch = 0;
- qreal totalSpacing = 0;
- qreal totalSizeHint = 0;
- qreal totalMinimumSize = 0;
-
- const int end = start + count;
- const int spacerCount = chain.count() - 1;
-
- for (int i = start; i < end; i++) {
- QQuickComponentsLayoutInfo *data = &chain[i];
-
- data->done = false;
-
- totalStretch += data->stretch;
- totalSizeHint += data->smartSizeHint();
- totalMinimumSize += data->minimumSize;
-
- // don't count last spacing
- if (i < end - 1)
- totalSpacing += data->effectiveSpacer(spacer);
-
- wannaGrow = (wannaGrow || data->expansive || data->stretch > 0);
- }
-
- qreal extraSpace = 0;
-
- if (space < totalMinimumSize + totalSpacing) {
- // Less space than minimumSize; take from the biggest first
- qreal minSize = totalMinimumSize + totalSpacing;
-
- // shrink the spacers proportionally
- if (spacer >= 0) {
- spacer = minSize > 0 ? spacer * space / minSize : 0;
- totalSpacing = spacer * spacerCount;
- }
-
- QList<qreal> list;
-
- for (int i = start; i < end; i++)
- list << chain.at(i).minimumSize;
-
- qSort(list);
-
- qreal spaceLeft = space - totalSpacing;
-
- qreal sum = 0;
- int idx = 0;
- qreal spaceUsed = 0;
- qreal current = 0;
-
- while (idx < count && spaceUsed < spaceLeft) {
- current = list.at(idx);
- spaceUsed = sum + current * (count - idx);
- sum += current;
- ++idx;
- }
-
- --idx;
-
- int items = count - idx;
- qreal deficit = spaceUsed - spaceLeft;
- qreal deficitPerItem = deficit / items;
- qreal maxval = current - deficitPerItem;
-
- for (int i = start; i < end; i++) {
- QQuickComponentsLayoutInfo *data = &chain[i];
- data->done = true;
-
- if (data->minimumSize > 0)
- data->size = data->minimumSize;
- else
- data->size = qMin<qreal>(data->minimumSize, maxval);
- }
- } else if (space < totalSizeHint + totalSpacing) {
- /*
- Less space than smartSizeHint(), but more than minimumSize.
- Currently take space equally from each, as in Qt 2.x.
- Commented-out lines will give more space to stretchier
- items.
- */
- int n = count;
- qreal spaceLeft = space - totalSpacing;
- qreal overdraft = totalSizeHint - spaceLeft;
-
- // first give to the fixed ones
- for (int i = start; i < end; i++) {
- QQuickComponentsLayoutInfo *data = &chain[i];
-
- if (!data->done && data->minimumSize >= data->smartSizeHint()) {
- data->done = true;
- data->size = data->smartSizeHint();
- spaceLeft -= data->smartSizeHint();
- n--;
- }
- }
-
- bool finished = (n == 0);
-
- while (!finished) {
- finished = true;
-
- for (int i = start; i < end; i++) {
- QQuickComponentsLayoutInfo *data = &chain[i];
-
- if (data->done)
- continue;
-
- qreal w = overdraft / n;
- data->size = data->smartSizeHint() - w;
-
- if (data->size < data->minimumSize) {
- data->done = true;
- data->size = data->minimumSize;
- finished = false;
- overdraft -= data->smartSizeHint() - data->minimumSize;
- n--;
- break;
- }
- }
- }
- } else { // extra space
- int n = count;
- qreal spaceLeft = space - totalSpacing;
-
- // first give to the fixed ones, and handle non-expansiveness
- for (int i = start; i < end; i++) {
- QQuickComponentsLayoutInfo *data = &chain[i];
-
- if (data->done)
- continue;
-
- if (data->maximumSize <= data->smartSizeHint()
- || (wannaGrow && !data->expansive && data->stretch == 0)
- || (!data->expansive && data->stretch == 0)) {
- data->done = true;
- data->size = data->smartSizeHint();
- spaceLeft -= data->size;
- totalStretch -= data->stretch;
- n--;
- }
- }
-
- extraSpace = spaceLeft;
-
- /*
- Do a trial distribution and calculate how much it is off.
- If there are more deficit pixels than surplus pixels, give
- the minimum size items what they need, and repeat.
- Otherwise give to the maximum size items, and repeat.
-
- Paul Olav Tvete has a wonderful mathematical proof of the
- correctness of this principle, but unfortunately this
- comment is too small to contain it.
- */
- qreal surplus, deficit;
-
- do {
- surplus = deficit = 0;
-
- for (int i = start; i < end; i++) {
- QQuickComponentsLayoutInfo *data = &chain[i];
-
- if (data->done)
- continue;
-
- extraSpace = 0;
-
- qreal w;
-
- if (totalStretch <= 0)
- w = (spaceLeft / n);
- else
- w = (spaceLeft * data->stretch) / totalStretch;
-
- data->size = w;
-
- if (w < data->smartSizeHint())
- deficit += data->smartSizeHint() - w;
- else if (w > data->maximumSize)
- surplus += w - data->maximumSize;
- }
-
- if (deficit > 0 && surplus <= deficit) {
- // give to the ones that have too little
- for (int i = start; i < end; i++) {
- QQuickComponentsLayoutInfo *data = &chain[i];
-
- if (!data->done && data->size < data->smartSizeHint()) {
- data->done = true;
- data->size = data->smartSizeHint();
- spaceLeft -= data->smartSizeHint();
- totalStretch -= data->stretch;
- n--;
- }
- }
- }
-
- if (surplus > 0 && surplus >= deficit) {
- // take from the ones that have too much
- for (int i = start; i < end; i++) {
- QQuickComponentsLayoutInfo *data = &chain[i];
-
- if (!data->done && data->size > data->maximumSize) {
- data->done = true;
- data->size = data->maximumSize;
- spaceLeft -= data->maximumSize;
- totalStretch -= data->stretch;
- n--;
- }
- }
- }
- } while (n > 0 && surplus != deficit);
-
- if (n == 0)
- extraSpace = spaceLeft;
- }
-
- /*
- As a last resort, we distribute the unwanted space equally
- among the spacers (counting the start and end of the chain). We
- could, but don't, attempt a sub-pixel allocation of the extra
- space.
- */
- qreal extra = extraSpace / (spacerCount + 2);
- qreal p = pos + extra;
-
- for (int i = start; i < end; i++) {
- QQuickComponentsLayoutInfo *data = &chain[i];
- data->pos = p;
- p += data->size;
- p += data->effectiveSpacer(spacer) + extra;
- }
-}
-
-QT_END_NAMESPACE
diff --git a/src/controls/qquicklinearlayout.cpp b/src/controls/qquicklinearlayout.cpp
deleted file mode 100644
index baf1d19d1..000000000
--- a/src/controls/qquicklinearlayout.cpp
+++ /dev/null
@@ -1,270 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the Qt Quick Controls module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia. For licensing terms and
-** conditions see http://qt.digia.com/licensing. For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights. These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qquicklinearlayout_p.h"
-#include "qquicklayoutengine_p.h"
-#include <QtCore/qnumeric.h>
-
-/*!
- \qmltype RowLayout
- \instantiates QQuickComponentsRowLayout
- \inqmlmodule QtQuick.Controls 1.0
- \brief RowLayout is doing bla...bla...
-*/
-
-/*!
- \qmltype ColumnLayout
- \instantiates QQuickComponentsColumnLayout
- \inqmlmodule QtQuick.Controls 1.0
- \brief ColumnLayout is doing bla...bla...
-*/
-
-QT_BEGIN_NAMESPACE
-
-static const qreal q_declarativeLayoutDefaultSpacing = 4.0;
-
-
-QQuickComponentsLinearLayout::QQuickComponentsLinearLayout(Orientation orientation,
- QQuickItem *parent)
- : QQuickComponentsLayout(parent),
- m_spacing(q_declarativeLayoutDefaultSpacing),
- m_orientation(orientation)
-{
-
-}
-
-qreal QQuickComponentsLinearLayout::spacing() const
-{
- return m_spacing;
-}
-
-void QQuickComponentsLinearLayout::setSpacing(qreal spacing)
-{
- if (qIsNaN(spacing) || m_spacing == spacing)
- return;
-
- m_spacing = spacing;
- invalidate();
-}
-
-QQuickComponentsLinearLayout::Orientation QQuickComponentsLinearLayout::orientation() const
-{
- return m_orientation;
-}
-
-void QQuickComponentsLinearLayout::setOrientation(Orientation orientation)
-{
- if (m_orientation == orientation)
- return;
-
- m_orientation = orientation;
- invalidate();
-
- emit orientationChanged();
-}
-
-void QQuickComponentsLinearLayout::componentComplete()
-{
- QQuickComponentsLayout::componentComplete();
- updateLayoutItems();
- invalidate();
-}
-
-void QQuickComponentsLinearLayout::updateLayoutItems()
-{
- const QList<QQuickItem *> &children = childItems();
- qreal implicitWidth = 0;
- qreal implicitHeight = 0;
- foreach (QQuickItem *child, children) {
- if (m_orientation == Horizontal) {
- implicitWidth += child->implicitWidth();
- implicitHeight = qMax(implicitHeight, child->implicitHeight());
- } else {
- implicitHeight += child->implicitHeight();
- implicitWidth = qMax(implicitWidth, child->implicitWidth());
- }
- insertLayoutItem(child);
- }
- setImplicitWidth(implicitWidth);
- setImplicitHeight(implicitHeight);
-}
-
-void QQuickComponentsLinearLayout::itemChange(ItemChange change, const ItemChangeData &value)
-{
- if (isComponentComplete()) {
- if (change == ItemChildAddedChange)
- insertLayoutItem(value.item);
- else if (change == ItemChildRemovedChange)
- removeLayoutItem(value.item);
- }
-
- QQuickComponentsLayout::itemChange(change, value);
-}
-
-void QQuickComponentsLinearLayout::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
-{
- QQuickComponentsLayout::geometryChanged(newGeometry, oldGeometry);
- invalidate();
-}
-
-void QQuickComponentsLinearLayout::insertLayoutItem(QQuickItem *item)
-{
- m_items.append(item);
- setupItemLayout(item);
-
- invalidate();
- QObject::connect(item, SIGNAL(destroyed()), this, SLOT(onItemDestroyed()));
- QObject::connect(item, SIGNAL(visibleChanged()), this, SLOT(onItemVisibleChanged()));
-}
-
-void QQuickComponentsLinearLayout::removeLayoutItem(QQuickItem *item)
-{
- if (!m_items.removeOne(item))
- return;
-
- invalidate();
- QObject::disconnect(item, SIGNAL(destroyed()), this, SLOT(onItemDestroyed()));
- QObject::disconnect(item, SIGNAL(visibleChanged()), this, SLOT(onItemVisibleChanged()));
-}
-
-void QQuickComponentsLinearLayout::onItemVisibleChanged()
-{
- invalidate();
-}
-
-void QQuickComponentsLinearLayout::onItemDestroyed()
-{
- if (!m_items.removeOne(static_cast<QQuickItem *>(sender())))
- return;
-
- invalidate();
-}
-
-void QQuickComponentsLinearLayout::reconfigureLayout()
-{
- if (!isComponentComplete())
- return;
-
- const int count = m_items.count();
-
- if (count == 0)
- return;
-
- qreal totalSpacing = 0;
- qreal totalSizeHint = 0;
- qreal totalMinimumSize = 0;
- qreal totalMaximumSize = 0;
-
- QVector<QQuickComponentsLayoutInfo> itemData;
-
- for (int i = 0; i < count; i++) {
- QQuickItem *item = m_items.at(i);
- QObject *attached = qmlAttachedPropertiesObject<QQuickComponentsLayout>(item);
- QQuickComponentsLayoutAttached *info = static_cast<QQuickComponentsLayoutAttached *>(attached);
-
- QQuickComponentsLayoutInfo data;
-
- if (item->isVisible()) {
- if (m_orientation == Horizontal) {
- data.sizeHint = item->implicitWidth();
- data.minimumSize = info->minimumWidth();
- data.maximumSize = info->maximumWidth();
- data.expansive = (info->horizontalSizePolicy() == QQuickComponentsLayout::Expanding);
- data.stretch = info->horizontalSizePolicy() == Expanding ? 1.0 : 0;
- } else {
- data.sizeHint = item->implicitHeight();
- data.minimumSize = info->minimumHeight();
- data.maximumSize = info->maximumHeight();
- data.expansive = (info->verticalSizePolicy() == QQuickComponentsLayout::Expanding);
- data.stretch = info->verticalSizePolicy() == Expanding ? 1.0 : 0;
- }
-
- itemData.append(data);
- // sum
- totalSizeHint += data.sizeHint;
- totalMinimumSize += data.minimumSize;
- totalMaximumSize += data.maximumSize;
-
- // don't count last spacing
- if (i < count - 1)
- totalSpacing += data.spacing + m_spacing;
- }
- }
-
- qreal extent = m_orientation == Horizontal ? width() : height();
- qDeclarativeLayoutCalculate(itemData, 0, itemData.count(), 0, extent, m_spacing);
-
- int i = 0;
- int id = 0;
- while (i < count) {
- QQuickItem *item = m_items.at(i++);
- if (!item->isVisible())
- continue;
- const QQuickComponentsLayoutInfo &data = itemData.at(id);
-
- if (m_orientation == Horizontal) {
- item->setX(data.pos);
- item->setY(height()/2 - item->height()/2);
- item->setWidth(data.size);
- } else {
- item->setY(data.pos);
- item->setX(width()/2 - item->width()/2);
- item->setHeight(data.size);
- }
- ++id;
- }
-
- // propagate hints to upper levels
- QObject *attached = qmlAttachedPropertiesObject<QQuickComponentsLayout>(this);
- QQuickComponentsLayoutAttached *info = static_cast<QQuickComponentsLayoutAttached *>(attached);
-
- if (m_orientation == Horizontal) {
- setImplicitWidth(totalSizeHint);
- info->setMinimumWidth(totalMinimumSize + totalSpacing);
- info->setMaximumWidth(totalMaximumSize + totalSpacing);
- } else {
- setImplicitHeight(totalSizeHint);
- info->setMinimumHeight(totalMinimumSize + totalSpacing);
- info->setMaximumHeight(totalMaximumSize + totalSpacing);
- }
-}
-
-QT_END_NAMESPACE
diff --git a/src/controls/qquicklinearlayout_p.h b/src/controls/qquicklinearlayout_p.h
deleted file mode 100644
index 6db7562da..000000000
--- a/src/controls/qquicklinearlayout_p.h
+++ /dev/null
@@ -1,116 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the Qt Quick Controls module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia. For licensing terms and
-** conditions see http://qt.digia.com/licensing. For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights. These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QQUICKLINEARLAYOUT_P_H
-#define QQUICKLINEARLAYOUT_P_H
-
-#include "qquicklayout_p.h"
-
-QT_BEGIN_NAMESPACE
-
-class QQuickComponentsLinearLayout : public QQuickComponentsLayout
-{
- Q_OBJECT
- Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing NOTIFY spacingChanged)
-
-public:
- enum Orientation {
- Vertical,
- Horizontal
- };
-
- explicit QQuickComponentsLinearLayout(Orientation orientation,
- QQuickItem *parent = 0);
- ~QQuickComponentsLinearLayout() {}
-
- qreal spacing() const;
- void setSpacing(qreal spacing);
-
- Orientation orientation() const;
- void setOrientation(Orientation orientation);
-
- void componentComplete();
-
-signals:
- void spacingChanged();
- void orientationChanged();
-
-protected:
- void updateLayoutItems();
- void reconfigureLayout();
- void insertLayoutItem(QQuickItem *item);
- void removeLayoutItem(QQuickItem *item);
- void itemChange(ItemChange change, const ItemChangeData &data);
- void geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry);
-
-protected slots:
- void onItemVisibleChanged();
- void onItemDestroyed();
-
-private:
- qreal m_spacing;
- Orientation m_orientation;
- QList<QQuickItem *> m_items;
-};
-
-
-class QQuickComponentsRowLayout : public QQuickComponentsLinearLayout
-{
- Q_OBJECT
-
-public:
- explicit QQuickComponentsRowLayout(QQuickItem *parent = 0)
- : QQuickComponentsLinearLayout(Horizontal, parent) {}
-};
-
-
-class QQuickComponentsColumnLayout : public QQuickComponentsLinearLayout
-{
- Q_OBJECT
-
-public:
- explicit QQuickComponentsColumnLayout(QQuickItem *parent = 0)
- : QQuickComponentsLinearLayout(Vertical, parent) {}
-};
-
-QT_END_NAMESPACE
-
-#endif // QQUICKLINEARLAYOUT_P_H
diff --git a/src/layouts/.gitattributes b/src/layouts/.gitattributes
new file mode 100644
index 000000000..4f72c998b
--- /dev/null
+++ b/src/layouts/.gitattributes
@@ -0,0 +1 @@
+*.qmltypes diff=text
\ No newline at end of file
diff --git a/src/layouts/layouts.pro b/src/layouts/layouts.pro
new file mode 100644
index 000000000..20bcf20c1
--- /dev/null
+++ b/src/layouts/layouts.pro
@@ -0,0 +1,26 @@
+CXX_MODULE = qml
+TARGET = qquicklayoutsplugin
+TARGETPATH = QtQuick/Layouts
+IMPORT_VERSION = 2.1
+
+QT *= qml-private quick-private v8-private gui-private core-private
+
+#QMAKE_DOCS = $$PWD/doc/qtquicklayouts.qdocconf
+
+SOURCES += plugin.cpp \
+ qlayoutpolicy.cpp \
+ qgridlayoutengine.cpp \
+ qquicklayout.cpp \
+ qquicklinearlayout.cpp
+
+HEADERS += \
+ qlayoutpolicy_p.h \
+ qgridlayoutengine_p.h \
+ qquickgridlayoutengine_p.h \
+ qquicklayout_p.h \
+ qquicklinearlayout_p.h
+
+OTHER_FILES += \
+$$PWD/plugin.json
+
+load(qml_plugin)
diff --git a/src/controls/qquicklayoutengine_p.h b/src/layouts/plugin.cpp
similarity index 66%
rename from src/controls/qquicklayoutengine_p.h
rename to src/layouts/plugin.cpp
index f83da4b1f..8348d8a0b 100644
--- a/src/controls/qquicklayoutengine_p.h
+++ b/src/layouts/plugin.cpp
@@ -3,7 +3,7 @@
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
-** This file is part of the Qt Quick Controls module of the Qt Toolkit.
+** This file is part of the Qt Quick Layouts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
@@ -39,51 +39,32 @@
**
****************************************************************************/
-#ifndef QQUICKLAYOUTENGINE_P_H
-#define QQUICKLAYOUTENGINE_P_H
+#include <QtQml/qqmlextensionplugin.h>
-#include <QVector>
+#include "qquicklinearlayout_p.h"
QT_BEGIN_NAMESPACE
-struct QQuickComponentsLayoutInfo
+//![class decl]
+class QtQuickLayoutsPlugin : public QQmlExtensionPlugin
{
- QQuickComponentsLayoutInfo()
- : stretch(1),
- sizeHint(0),
- spacing(0),
- minimumSize(0),
- maximumSize(0),
- expansive(true),
- done(false),
- pos(0),
- size(0)
- { }
+ Q_OBJECT
+ Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QQmlExtensionInterface/1.0")
+public:
+ virtual void registerTypes(const char *uri)
+ {
+ Q_ASSERT(QLatin1String(uri) == QLatin1String("QtQuick.Layouts"));
+ Q_UNUSED(uri);
- inline qreal smartSizeHint() {
- return (stretch > 0) ? minimumSize : sizeHint;
+ qmlRegisterType<QQuickRowLayout>(uri, 1, 0, "RowLayout");
+ qmlRegisterType<QQuickColumnLayout>(uri, 1, 0, "ColumnLayout");
+ qmlRegisterType<QQuickGridLayout>(uri, 1, 0, "GridLayout");
+ qmlRegisterUncreatableType<QQuickLayout>(uri, 1, 0, "Layout",
+ QLatin1String("Do not create objects of type Layout"));
}
-
- inline qreal effectiveSpacer(qreal value) const {
- return value + spacing;
- }
-
- qreal stretch;
- qreal sizeHint;
- qreal spacing;
- qreal minimumSize;
- qreal maximumSize;
- bool expansive;
-
- // result
- bool done;
- qreal pos;
- qreal size;
};
-
-void qDeclarativeLayoutCalculate(QVector<QQuickComponentsLayoutInfo> &chain, int start,
- int count, qreal pos, qreal space, qreal spacer);
+//![class decl]
QT_END_NAMESPACE
-#endif // QQUICKLAYOUTENGINE_P_H
+#include "plugin.moc"
diff --git a/src/layouts/plugin.json b/src/layouts/plugin.json
new file mode 100644
index 000000000..0967ef424
--- /dev/null
+++ b/src/layouts/plugin.json
@@ -0,0 +1 @@
+{}
diff --git a/src/layouts/plugins.qmltypes b/src/layouts/plugins.qmltypes
new file mode 100644
index 0000000000000000000000000000000000000000..dd3dc69f02223dc029d0aa66f836fe0a0c9bb300
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diff --git a/src/layouts/qgridlayoutengine.cpp b/src/layouts/qgridlayoutengine.cpp
new file mode 100644
index 000000000..11188d564
--- /dev/null
+++ b/src/layouts/qgridlayoutengine.cpp
@@ -0,0 +1,1678 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Quick Layouts module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights. These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qglobal.h"
+
+#ifndef QT_NO_GRAPHICSVIEW
+
+#include <math.h>
+
+//#include "qgraphicslayoutitem.h"
+#include "qgridlayoutengine_p.h"
+//#include "qstyleoption.h"
+#include "qvarlengtharray.h"
+
+#include <QtDebug>
+#include <QtCore/qmath.h>
+
+QT_BEGIN_NAMESPACE
+
+template <typename T>
+static void insertOrRemoveItems(QVector<T> &items, int index, int delta)
+{
+ int count = items.count();
+ if (index < count) {
+ if (delta > 0) {
+ items.insert(index, delta, T());
+ } else if (delta < 0) {
+ items.remove(index, qMin(-delta, count - index));
+ }
+ }
+}
+
+static qreal growthFactorBelowPreferredSize(qreal desired, qreal sumAvailable, qreal sumDesired)
+{
+ Q_ASSERT(sumDesired != 0.0);
+ return desired * qPow(sumAvailable / sumDesired, desired / sumDesired);
+}
+
+static qreal fixedDescent(qreal descent, qreal ascent, qreal targetSize)
+{
+ if (descent < 0.0)
+ return -1.0;
+
+ Q_ASSERT(descent >= 0.0);
+ Q_ASSERT(ascent >= 0.0);
+ Q_ASSERT(targetSize >= ascent + descent);
+
+ qreal extra = targetSize - (ascent + descent);
+ return descent + (extra / 2.0);
+}
+
+static qreal compare(const QGridLayoutBox &box1, const QGridLayoutBox &box2, int which)
+{
+ qreal size1 = box1.q_sizes(which);
+ qreal size2 = box2.q_sizes(which);
+
+ if (which == MaximumSize) {
+ return size2 - size1;
+ } else {
+ return size1 - size2;
+ }
+}
+
+void QGridLayoutBox::add(const QGridLayoutBox &other, int stretch, qreal spacing)
+{
+ Q_ASSERT(q_minimumDescent < 0.0);
+
+ q_minimumSize += other.q_minimumSize + spacing;
+ q_preferredSize += other.q_preferredSize + spacing;
+ q_maximumSize += ((stretch == 0) ? other.q_preferredSize : other.q_maximumSize) + spacing;
+}
+
+void QGridLayoutBox::combine(const QGridLayoutBox &other)
+{
+ q_minimumDescent = qMax(q_minimumDescent, other.q_minimumDescent);
+ q_minimumAscent = qMax(q_minimumAscent, other.q_minimumAscent);
+
+ q_minimumSize = qMax(q_minimumAscent + q_minimumDescent,
+ qMax(q_minimumSize, other.q_minimumSize));
+ qreal maxMax;
+ if (q_maximumSize == FLT_MAX && other.q_maximumSize != FLT_MAX)
+ maxMax = other.q_maximumSize;
+ else if (other.q_maximumSize == FLT_MAX && q_maximumSize != FLT_MAX)
+ maxMax = q_maximumSize;
+ else
+ maxMax = qMax(q_maximumSize, other.q_maximumSize);
+
+ q_maximumSize = qMax(q_minimumSize, maxMax);
+ q_preferredSize = qBound(q_minimumSize, qMax(q_preferredSize, other.q_preferredSize),
+ q_maximumSize);
+}
+
+void QGridLayoutBox::normalize()
+{
+ q_maximumSize = qMax(qreal(0.0), q_maximumSize);
+ q_minimumSize = qBound(qreal(0.0), q_minimumSize, q_maximumSize);
+ q_preferredSize = qBound(q_minimumSize, q_preferredSize, q_maximumSize);
+ q_minimumDescent = qMin(q_minimumDescent, q_minimumSize);
+
+ Q_ASSERT((q_minimumDescent < 0.0) == (q_minimumAscent < 0.0));
+}
+
+#ifdef QT_DEBUG
+void QGridLayoutBox::dump(int indent) const
+{
+ qDebug("%*sBox (%g <= %g <= %g [%g/%g])", indent, "", q_minimumSize, q_preferredSize,
+ q_maximumSize, q_minimumAscent, q_minimumDescent);
+}
+#endif
+
+bool operator==(const QGridLayoutBox &box1, const QGridLayoutBox &box2)
+{
+ for (int i = 0; i < NSizes; ++i) {
+ if (box1.q_sizes(i) != box2.q_sizes(i))
+ return false;
+ }
+ return box1.q_minimumDescent == box2.q_minimumDescent
+ && box1.q_minimumAscent == box2.q_minimumAscent;
+}
+
+void QGridLayoutRowData::reset(int count)
+{
+ ignore.fill(false, count);
+ boxes.fill(QGridLayoutBox(), count);
+ multiCellMap.clear();
+ stretches.fill(0, count);
+ spacings.fill(0.0, count);
+ hasIgnoreFlag = false;
+}
+
+void QGridLayoutRowData::distributeMultiCells(const QGridLayoutRowInfo &rowInfo)
+{
+ MultiCellMap::const_iterator i = multiCellMap.constBegin();
+ for (; i != multiCellMap.constEnd(); ++i) {
+ int start = i.key().first;
+ int span = i.key().second;
+ int end = start + span;
+ const QGridLayoutBox &box = i.value().q_box;
+ int stretch = i.value().q_stretch;
+
+ QGridLayoutBox totalBox = this->totalBox(start, end);
+ QVarLengthArray<QGridLayoutBox> extras(span);
+ QVarLengthArray<qreal> dummy(span);
+ QVarLengthArray<qreal> newSizes(span);
+
+ for (int j = 0; j < NSizes; ++j) {
+ qreal extra = compare(box, totalBox, j);
+ if (extra > 0.0) {
+ calculateGeometries(start, end, box.q_sizes(j), dummy.data(), newSizes.data(),
+ 0, totalBox, rowInfo);
+
+ for (int k = 0; k < span; ++k)
+ extras[k].q_sizes(j) = newSizes[k];
+ }
+ }
+
+ for (int k = 0; k < span; ++k) {
+ boxes[start + k].combine(extras[k]);
+ if (stretch != 0)
+ stretches[start + k] = qMax(stretches[start + k], stretch);
+ }
+ }
+ multiCellMap.clear();
+}
+
+void QGridLayoutRowData::calculateGeometries(int start, int end, qreal targetSize, qreal *positions,
+ qreal *sizes, qreal *descents,
+ const QGridLayoutBox &totalBox,
+ const QGridLayoutRowInfo &rowInfo)
+{
+ Q_ASSERT(end > start);
+
+ targetSize = qMax(totalBox.q_minimumSize, targetSize);
+
+ int n = end - start;
+ QVarLengthArray<qreal> newSizes(n);
+ QVarLengthArray<qreal> factors(n);
+ qreal sumFactors = 0.0;
+ int sumStretches = 0;
+ qreal sumAvailable;
+
+ for (int i = 0; i < n; ++i) {
+ if (stretches[start + i] > 0)
+ sumStretches += stretches[start + i];
+ }
+
+ if (targetSize < totalBox.q_preferredSize) {
+ stealBox(start, end, MinimumSize, positions, sizes);
+
+ sumAvailable = targetSize - totalBox.q_minimumSize;
+ if (sumAvailable > 0.0) {
+ qreal sumDesired = totalBox.q_preferredSize - totalBox.q_minimumSize;
+
+ for (int i = 0; i < n; ++i) {
+ if (ignore.testBit(start + i)) {
+ factors[i] = 0.0;
+ continue;
+ }
+
+ const QGridLayoutBox &box = boxes.at(start + i);
+ qreal desired = box.q_preferredSize - box.q_minimumSize;
+ factors[i] = growthFactorBelowPreferredSize(desired, sumAvailable, sumDesired);
+ sumFactors += factors[i];
+ }
+
+ for (int i = 0; i < n; ++i) {
+ Q_ASSERT(sumFactors > 0.0);
+ qreal delta = sumAvailable * factors[i] / sumFactors;
+ newSizes[i] = sizes[i] + delta;
+ }
+ }
+ } else {
+ bool isLargerThanMaximum = (targetSize > totalBox.q_maximumSize);
+ if (isLargerThanMaximum) {
+ stealBox(start, end, MaximumSize, positions, sizes);
+ sumAvailable = targetSize - totalBox.q_maximumSize;
+ } else {
+ stealBox(start, end, PreferredSize, positions, sizes);
+ sumAvailable = targetSize - totalBox.q_preferredSize;
+ }
+
+ if (sumAvailable > 0.0) {
+ qreal sumCurrentAvailable = sumAvailable;
+ bool somethingHasAMaximumSize = false;
+
+ qreal sumSizes = 0.0;
+ for (int i = 0; i < n; ++i)
+ sumSizes += sizes[i];
+
+ for (int i = 0; i < n; ++i) {
+ if (ignore.testBit(start + i)) {
+ newSizes[i] = 0.0;
+ factors[i] = 0.0;
+ continue;
+ }
+
+ const QGridLayoutBox &box = boxes.at(start + i);
+ qreal boxSize;
+
+ qreal desired;
+ if (isLargerThanMaximum) {
+ boxSize = box.q_maximumSize;
+ desired = rowInfo.boxes.value(start + i).q_maximumSize - boxSize;
+ } else {
+ boxSize = box.q_preferredSize;
+ desired = box.q_maximumSize - boxSize;
+ }
+ if (desired == 0.0) {
+ newSizes[i] = sizes[i];
+ factors[i] = 0.0;
+ } else {
+ Q_ASSERT(desired > 0.0);
+
+ int stretch = stretches[start + i];
+ if (sumStretches == 0) {
+ if (hasIgnoreFlag) {
+ factors[i] = (stretch < 0) ? 1.0 : 0.0;
+ } else {
+ factors[i] = (stretch < 0) ? sizes[i] : 0.0;
+ }
+ } else if (stretch == sumStretches) {
+ factors[i] = 1.0;
+ } else if (stretch <= 0) {
+ factors[i] = 0.0;
+ } else {
+ qreal ultimateSize;
+ qreal ultimateSumSizes;
+ qreal x = ((stretch * sumSizes)
+ - (sumStretches * boxSize))
+ / (sumStretches - stretch);
+ if (x >= 0.0) {
+ ultimateSize = boxSize + x;
+ ultimateSumSizes = sumSizes + x;
+ } else {
+ ultimateSize = boxSize;
+ ultimateSumSizes = (sumStretches * boxSize)
+ / stretch;
+ }
+
+ /*
+ We multiply these by 1.5 to give some space for a smooth transition
+ (at the expense of the stretch factors, which are not fully respected
+ during the transition).
+ */
+ ultimateSize = ultimateSize * 3 / 2;
+ ultimateSumSizes = ultimateSumSizes * 3 / 2;
+
+ qreal beta = ultimateSumSizes - sumSizes;
+ if (!beta) {
+ factors[i] = 1;
+ } else {
+ qreal alpha = qMin(sumCurrentAvailable, beta);
+ qreal ultimateFactor = (stretch * ultimateSumSizes / sumStretches)
+ - (boxSize);
+ qreal transitionalFactor = sumCurrentAvailable * (ultimateSize - boxSize) / beta;
+
+ factors[i] = ((alpha * ultimateFactor)
+ + ((beta - alpha) * transitionalFactor)) / beta;
+ }
+
+ }
+ sumFactors += factors[i];
+ if (desired < sumCurrentAvailable)
+ somethingHasAMaximumSize = true;
+
+ newSizes[i] = -1.0;
+ }
+ }
+
+ bool keepGoing = somethingHasAMaximumSize;
+ while (keepGoing) {
+ keepGoing = false;
+
+ for (int i = 0; i < n; ++i) {
+ if (newSizes[i] >= 0.0)
+ continue;
+
+ qreal maxBoxSize;
+ if (isLargerThanMaximum)
+ maxBoxSize = rowInfo.boxes.value(start + i).q_maximumSize;
+ else
+ maxBoxSize = boxes.at(start + i).q_maximumSize;
+
+ qreal avail = sumCurrentAvailable * factors[i] / sumFactors;
+ if (sizes[i] + avail >= maxBoxSize) {
+ newSizes[i] = maxBoxSize;
+ sumCurrentAvailable -= maxBoxSize - sizes[i];
+ sumFactors -= factors[i];
+ keepGoing = (sumCurrentAvailable > 0.0);
+ if (!keepGoing)
+ break;
+ }
+ }
+ }
+
+ for (int i = 0; i < n; ++i) {
+ if (newSizes[i] < 0.0) {
+ qreal delta = (sumFactors == 0.0) ? 0.0
+ : sumCurrentAvailable * factors[i] / sumFactors;
+ newSizes[i] = sizes[i] + delta;
+ }
+ }
+ }
+ }
+
+ if (sumAvailable > 0) {
+ qreal offset = 0;
+ for (int i = 0; i < n; ++i) {
+ qreal delta = newSizes[i] - sizes[i];
+ positions[i] += offset;
+ sizes[i] += delta;
+ offset += delta;
+ }
+
+#if 0 // some "pixel allocation"
+ int surplus = targetSize - (positions[n - 1] + sizes[n - 1]);
+ Q_ASSERT(surplus >= 0 && surplus <= n);
+
+ int prevSurplus = -1;
+ while (surplus > 0 && surplus != prevSurplus) {
+ prevSurplus = surplus;
+
+ int offset = 0;
+ for (int i = 0; i < n; ++i) {
+ const QGridLayoutBox &box = boxes.at(start + i);
+ int delta = (!ignore.testBit(start + i) && surplus > 0
+ && factors[i] > 0 && sizes[i] < box.q_maximumSize)
+ ? 1 : 0;
+
+ positions[i] += offset;
+ sizes[i] += delta;
+ offset += delta;
+ surplus -= delta;
+ }
+ }
+ Q_ASSERT(surplus == 0);
+#endif
+ }
+
+ if (descents) {
+ for (int i = 0; i < n; ++i) {
+ if (ignore.testBit(start + i))
+ continue;
+ const QGridLayoutBox &box = boxes.at(start + i);
+ descents[i] = fixedDescent(box.q_minimumDescent, box.q_minimumAscent, sizes[i]);
+ }
+ }
+}
+
+QGridLayoutBox QGridLayoutRowData::totalBox(int start, int end) const
+{
+ QGridLayoutBox result;
+ if (start < end) {
+ result.q_maximumSize = 0.0;
+ qreal nextSpacing = 0.0;
+ for (int i = start; i < end; ++i) {
+ result.add(boxes.at(i), stretches.at(i), nextSpacing);
+ nextSpacing = spacings.at(i);
+ }
+ }
+ return result;
+}
+
+void QGridLayoutRowData::stealBox(int start, int end, int which, qreal *positions, qreal *sizes)
+{
+ qreal offset = 0.0;
+ qreal nextSpacing = 0.0;
+
+ for (int i = start; i < end; ++i) {
+ qreal avail = 0.0;
+
+ if (!ignore.testBit(i)) {
+ const QGridLayoutBox &box = boxes.at(i);
+ avail = box.q_sizes(which);
+ offset += nextSpacing;
+ nextSpacing = spacings.at(i);
+ }
+
+ *positions++ = offset;
+ *sizes++ = avail;
+ offset += avail;
+ }
+}
+
+#ifdef QT_DEBUG
+void QGridLayoutRowData::dump(int indent) const
+{
+ qDebug("%*sData", indent, "");
+
+ for (int i = 0; i < ignore.count(); ++i) {
+ qDebug("%*s Row %d (stretch %d, spacing %g)", indent, "", i, stretches.at(i),
+ spacings.at(i));
+ if (ignore.testBit(i))
+ qDebug("%*s Ignored", indent, "");
+ boxes.at(i).dump(indent + 2);
+ }
+
+ MultiCellMap::const_iterator it = multiCellMap.constBegin();
+ while (it != multiCellMap.constEnd()) {
+ qDebug("%*s Multi-cell entry <%d, %d> (stretch %d)", indent, "", it.key().first,
+ it.key().second, it.value().q_stretch);
+ it.value().q_box.dump(indent + 2);
+ }
+}
+#endif
+
+QGridLayoutItem::QGridLayoutItem(/*QGridLayoutEngine *engine, */
+ int row, int column, int rowSpan, int columnSpan,
+ Qt::Alignment alignment)
+ : /*###q_engine(engine), q_layoutItem(layoutItem), */q_alignment(alignment)
+{
+ q_firstRows[Hor] = column;
+ q_firstRows[Ver] = row;
+ q_rowSpans[Hor] = columnSpan;
+ q_rowSpans[Ver] = rowSpan;
+ q_stretches[Hor] = -1;
+ q_stretches[Ver] = -1;
+
+ //q_engine->insertItem(this, itemAtIndex);###
+}
+
+int QGridLayoutItem::firstRow(Qt::Orientation orientation) const
+{
+ return q_firstRows[orientation == Qt::Vertical];
+}
+
+int QGridLayoutItem::firstColumn(Qt::Orientation orientation) const
+{
+ return q_firstRows[orientation == Qt::Horizontal];
+}
+
+int QGridLayoutItem::lastRow(Qt::Orientation orientation) const
+{
+ return firstRow(orientation) + rowSpan(orientation) - 1;
+}
+
+int QGridLayoutItem::lastColumn(Qt::Orientation orientation) const
+{
+ return firstColumn(orientation) + columnSpan(orientation) - 1;
+}
+
+int QGridLayoutItem::rowSpan(Qt::Orientation orientation) const
+{
+ return q_rowSpans[orientation == Qt::Vertical];
+}
+
+int QGridLayoutItem::columnSpan(Qt::Orientation orientation) const
+{
+ return q_rowSpans[orientation == Qt::Horizontal];
+}
+
+void QGridLayoutItem::setFirstRow(int row, Qt::Orientation orientation)
+{
+ q_firstRows[orientation == Qt::Vertical] = row;
+}
+
+void QGridLayoutItem::setRowSpan(int rowSpan, Qt::Orientation orientation)
+{
+ q_rowSpans[orientation == Qt::Vertical] = rowSpan;
+}
+
+int QGridLayoutItem::stretchFactor(Qt::Orientation orientation) const
+{
+ int stretch = q_stretches[orientation == Qt::Vertical];
+ if (stretch >= 0)
+ return stretch;
+
+ QLayoutPolicy::Policy policy = sizePolicy(orientation);
+
+ if (policy & QLayoutPolicy::ExpandFlag) {
+ return 1;
+ } else if (policy & QLayoutPolicy::GrowFlag) {
+ return -1; // because we max it up
+ } else {
+ return 0;
+ }
+}
+
+void QGridLayoutItem::setStretchFactor(int stretch, Qt::Orientation orientation)
+{
+ Q_ASSERT(stretch >= 0); // ### deal with too big stretches
+ q_stretches[orientation == Qt::Vertical] = stretch;
+}
+
+QLayoutPolicy::ControlTypes QGridLayoutItem::controlTypes(LayoutSide /*side*/) const
+{
+ return QLayoutPolicy::DefaultType; //###
+}
+
+QGridLayoutBox QGridLayoutItem::box(Qt::Orientation orientation, qreal constraint) const
+{
+ QGridLayoutBox result;
+ QLayoutPolicy::Policy policy = sizePolicy(orientation);
+
+ if (orientation == Qt::Horizontal) {
+ QSizeF constraintSize(-1.0, constraint);
+
+ result.q_preferredSize = sizeHint(Qt::PreferredSize, constraintSize).width();
+
+ if (policy & QLayoutPolicy::ShrinkFlag) {
+ result.q_minimumSize = sizeHint(Qt::MinimumSize, constraintSize).width();
+ } else {
+ result.q_minimumSize = result.q_preferredSize;
+ }
+
+ if (policy & (QLayoutPolicy::GrowFlag | QLayoutPolicy::ExpandFlag)) {
+ result.q_maximumSize = sizeHint(Qt::MaximumSize, constraintSize).width();
+ } else {
+ result.q_maximumSize = result.q_preferredSize;
+ }
+ } else {
+ QSizeF constraintSize(constraint, -1.0);
+
+ result.q_preferredSize = sizeHint(Qt::PreferredSize, constraintSize).height();
+
+ if (policy & QLayoutPolicy::ShrinkFlag) {
+ result.q_minimumSize = sizeHint(Qt::MinimumSize, constraintSize).height();
+ } else {
+ result.q_minimumSize = result.q_preferredSize;
+ }
+
+ if (policy & (QLayoutPolicy::GrowFlag | QLayoutPolicy::ExpandFlag)) {
+ result.q_maximumSize = sizeHint(Qt::MaximumSize, constraintSize).height();
+ } else {
+ result.q_maximumSize = result.q_preferredSize;
+ }
+
+ result.q_minimumDescent = sizeHint(Qt::MinimumDescent, constraintSize).height();
+ if (result.q_minimumDescent >= 0.0)
+ result.q_minimumAscent = result.q_minimumSize - result.q_minimumDescent;
+ }
+ if (policy & QLayoutPolicy::IgnoreFlag)
+ result.q_preferredSize = result.q_minimumSize;
+
+ return result;
+}
+
+QRectF QGridLayoutItem::geometryWithin(qreal x, qreal y, qreal width, qreal height,
+ qreal rowDescent, Qt::Alignment align) const
+{
+ rowDescent = -1.0; // ### This disables the descent
+
+ QGridLayoutBox vBox = box(Qt::Vertical);
+ if (vBox.q_minimumDescent < 0.0 || rowDescent < 0.0) {
+ qreal cellWidth = width;
+ qreal cellHeight = height;
+
+
+ QSizeF size = effectiveMaxSize(QSizeF(-1,-1));
+ if (hasDynamicConstraint()) {
+ if (dynamicConstraintOrientation() == Qt::Vertical) {
+ if (size.width() > cellWidth)
+ size = effectiveMaxSize(QSizeF(cellWidth, -1));
+ } else if (size.height() > cellHeight) {
+ size = effectiveMaxSize(QSizeF(-1, cellHeight));
+ }
+ }
+ size = size.boundedTo(QSizeF(cellWidth, cellHeight));
+ width = size.width();
+ height = size.height();
+
+ switch (align & Qt::AlignHorizontal_Mask) {
+ case Qt::AlignHCenter:
+ x += (cellWidth - width)/2;
+ break;
+ case Qt::AlignRight:
+ x += cellWidth - width;
+ break;
+ default:
+ break;
+ }
+ switch (align & Qt::AlignVertical_Mask) {
+ case Qt::AlignVCenter:
+ y += (cellHeight - height)/2;
+ break;
+ case Qt::AlignBottom:
+ y += cellHeight - height;
+ break;
+ default:
+ break;
+ }
+ return QRectF(x, y, width, height);
+ } else {
+ qreal descent = vBox.q_minimumDescent;
+ qreal ascent = vBox.q_minimumSize - descent;
+ return QRectF(x, y + height - rowDescent - ascent, width, ascent + descent);
+ }
+}
+
+void QGridLayoutItem::transpose()
+{
+ qSwap(q_firstRows[Hor], q_firstRows[Ver]);
+ qSwap(q_rowSpans[Hor], q_rowSpans[Ver]);
+ qSwap(q_stretches[Hor], q_stretches[Ver]);
+}
+
+void QGridLayoutItem::insertOrRemoveRows(int row, int delta, Qt::Orientation orientation)
+{
+ int oldFirstRow = firstRow(orientation);
+ if (oldFirstRow >= row) {
+ setFirstRow(oldFirstRow + delta, orientation);
+ } else if (lastRow(orientation) >= row) {
+ setRowSpan(rowSpan(orientation) + delta, orientation);
+ }
+}
+/*!
+ \internal
+ returns the effective maximumSize, will take the sizepolicy into
+ consideration. (i.e. if sizepolicy does not have QLayoutPolicy::Grow, then
+ maxSizeHint will be the preferredSize)
+ Note that effectiveSizeHint does not take sizePolicy into consideration,
+ (since it only evaluates the hints, as the name implies)
+*/
+QSizeF QGridLayoutItem::effectiveMaxSize(const QSizeF &constraint) const
+{
+ QSizeF size = constraint;
+ bool vGrow = (sizePolicy(Qt::Vertical) & QLayoutPolicy::GrowFlag) == QLayoutPolicy::GrowFlag;
+ bool hGrow = (sizePolicy(Qt::Horizontal) & QLayoutPolicy::GrowFlag) == QLayoutPolicy::GrowFlag;
+ if (!vGrow || !hGrow) {
+ QSizeF pref = sizeHint(Qt::PreferredSize, constraint);
+ if (!vGrow)
+ size.setHeight(pref.height());
+ if (!hGrow)
+ size.setWidth(pref.width());
+ }
+
+ if (!size.isValid()) {
+ QSizeF maxSize = sizeHint(Qt::MaximumSize, size);
+ if (size.width() == -1)
+ size.setWidth(maxSize.width());
+ if (size.height() == -1)
+ size.setHeight(maxSize.height());
+ }
+ return size;
+}
+
+#ifdef QT_DEBUG
+void QGridLayoutItem::dump(int indent) const
+{
+ qDebug("%*s (%d, %d) %d x %d", indent, "", firstRow(), firstColumn(), //###
+ rowSpan(), columnSpan());
+
+ if (q_stretches[Hor] >= 0)
+ qDebug("%*s Horizontal stretch: %d", indent, "", q_stretches[Hor]);
+ if (q_stretches[Ver] >= 0)
+ qDebug("%*s Vertical stretch: %d", indent, "", q_stretches[Ver]);
+ if (q_alignment != 0)
+ qDebug("%*s Alignment: %x", indent, "", uint(q_alignment));
+ qDebug("%*s Horizontal size policy: %x Vertical size policy: %x",
+ indent, "", sizePolicy(Qt::Horizontal), sizePolicy(Qt::Vertical));
+}
+#endif
+
+void QGridLayoutRowInfo::insertOrRemoveRows(int row, int delta)
+{
+ count += delta;
+
+ insertOrRemoveItems(stretches, row, delta);
+ insertOrRemoveItems(spacings, row, delta);
+ insertOrRemoveItems(alignments, row, delta);
+ insertOrRemoveItems(boxes, row, delta);
+}
+
+#ifdef QT_DEBUG
+void QGridLayoutRowInfo::dump(int indent) const
+{
+ qDebug("%*sInfo (count: %d)", indent, "", count);
+ for (int i = 0; i < count; ++i) {
+ QString message;
+
+ if (stretches.value(i).value() >= 0)
+ message += QString::fromLatin1(" stretch %1").arg(stretches.value(i).value());
+ if (spacings.value(i).value() >= 0.0)
+ message += QString::fromLatin1(" spacing %1").arg(spacings.value(i).value());
+ if (alignments.value(i) != 0)
+ message += QString::fromLatin1(" alignment %1").arg(int(alignments.value(i)), 16);
+
+ if (!message.isEmpty() || boxes.value(i) != QGridLayoutBox()) {
+ qDebug("%*s Row %d:%s", indent, "", i, qPrintable(message));
+ if (boxes.value(i) != QGridLayoutBox())
+ boxes.value(i).dump(indent + 1);
+ }
+ }
+}
+#endif
+
+QGridLayoutEngine::QGridLayoutEngine()
+{
+ m_visualDirection = Qt::LeftToRight;
+ invalidate();
+}
+
+int QGridLayoutEngine::rowCount(Qt::Orientation orientation) const
+{
+ return q_infos[orientation == Qt::Vertical].count;
+}
+
+int QGridLayoutEngine::columnCount(Qt::Orientation orientation) const
+{
+ return q_infos[orientation == Qt::Horizontal].count;
+}
+
+int QGridLayoutEngine::itemCount() const
+{
+ return q_items.count();
+}
+
+QGridLayoutItem *QGridLayoutEngine::itemAt(int index) const
+{
+ Q_ASSERT(index >= 0 && index < itemCount());
+ return q_items.at(index);
+}
+
+int QGridLayoutEngine::effectiveFirstRow(Qt::Orientation orientation) const
+{
+ ensureEffectiveFirstAndLastRows();
+ return q_cachedEffectiveFirstRows[orientation == Qt::Vertical];
+}
+
+int QGridLayoutEngine::effectiveLastRow(Qt::Orientation orientation) const
+{
+ ensureEffectiveFirstAndLastRows();
+ return q_cachedEffectiveLastRows[orientation == Qt::Vertical];
+}
+
+void QGridLayoutEngine::setSpacing(qreal spacing, Qt::Orientations orientations)
+{
+ Q_ASSERT(spacing >= 0.0);
+ if (orientations & Qt::Horizontal)
+ q_defaultSpacings[Hor].setUserValue(spacing);
+ if (orientations & Qt::Vertical)
+ q_defaultSpacings[Ver].setUserValue(spacing);
+
+ invalidate();
+}
+
+qreal QGridLayoutEngine::spacing(Qt::Orientation orientation, const QLayoutStyleInfo &/*styleInfo*/) const
+{
+ if (q_defaultSpacings[orientation == Qt::Vertical].isDefault()) {
+ /* ###
+ if (QStyle *style = styleInfo.style()) {
+ QStyleOption option;
+ option.initFrom(styleInfo.widget());
+ qreal defaultSpacing = (qreal)style->pixelMetric(orientation == Qt::Vertical ? QStyle::PM_LayoutVerticalSpacing
+ : QStyle::PM_LayoutHorizontalSpacing, &option, styleInfo.widget());
+ q_defaultSpacings[orientation == Qt::Vertical].setCachedValue(defaultSpacing);
+ }
+ */
+ }
+ return q_defaultSpacings[orientation == Qt::Vertical].value();
+}
+
+void QGridLayoutEngine::setRowSpacing(int row, qreal spacing, Qt::Orientation orientation)
+{
+ Q_ASSERT(row >= 0);
+
+ QGridLayoutRowInfo &rowInfo = q_infos[orientation == Qt::Vertical];
+ if (row >= rowInfo.spacings.count())
+ rowInfo.spacings.resize(row + 1);
+ if (spacing >= 0)
+ rowInfo.spacings[row].setUserValue(spacing);
+ else
+ rowInfo.spacings[row] = QLayoutParameter<qreal>();
+ invalidate();
+}
+
+qreal QGridLayoutEngine::rowSpacing(int row, Qt::Orientation orientation) const
+{
+ QLayoutParameter<qreal> spacing = q_infos[orientation == Qt::Vertical].spacings.value(row);
+ if (!spacing.isDefault())
+ return spacing.value();
+ return q_defaultSpacings[orientation == Qt::Vertical].value();
+}
+
+void QGridLayoutEngine::setRowStretchFactor(int row, int stretch, Qt::Orientation orientation)
+{
+ Q_ASSERT(row >= 0);
+ Q_ASSERT(stretch >= 0);
+
+ maybeExpandGrid(row, -1, orientation);
+
+ QGridLayoutRowInfo &rowInfo = q_infos[orientation == Qt::Vertical];
+ if (row >= rowInfo.stretches.count())
+ rowInfo.stretches.resize(row + 1);
+ rowInfo.stretches[row].setUserValue(stretch);
+}
+
+int QGridLayoutEngine::rowStretchFactor(int row, Qt::Orientation orientation) const
+{
+ QStretchParameter stretch = q_infos[orientation == Qt::Vertical].stretches.value(row);
+ if (!stretch.isDefault())
+ return stretch.value();
+ return 0;
+}
+/*
+void QGridLayoutEngine::setStretchFactor(QGraphicsLayoutItem *layoutItem, int stretch,
+ Qt::Orientation orientation)
+{
+ Q_ASSERT(stretch >= 0);
+
+ if (QGridLayoutItem *item = findLayoutItem(layoutItem))
+ item->setStretchFactor(stretch, orientation);
+}
+
+int QGridLayoutEngine::stretchFactor(QGraphicsLayoutItem *layoutItem, Qt::Orientation orientation) const
+{
+ if (QGridLayoutItem *item = findLayoutItem(layoutItem))
+ return item->stretchFactor(orientation);
+ return 0;
+}
+*/
+void QGridLayoutEngine::setRowSizeHint(Qt::SizeHint which, int row, qreal size,
+ Qt::Orientation orientation)
+{
+ Q_ASSERT(row >= 0);
+ Q_ASSERT(size >= 0.0);
+
+ maybeExpandGrid(row, -1, orientation);
+
+ QGridLayoutRowInfo &rowInfo = q_infos[orientation == Qt::Vertical];
+ if (row >= rowInfo.boxes.count())
+ rowInfo.boxes.resize(row + 1);
+ rowInfo.boxes[row].q_sizes(which) = size;
+}
+
+qreal QGridLayoutEngine::rowSizeHint(Qt::SizeHint which, int row, Qt::Orientation orientation) const
+{
+ return q_infos[orientation == Qt::Vertical].boxes.value(row).q_sizes(which);
+}
+
+void QGridLayoutEngine::setRowAlignment(int row, Qt::Alignment alignment,
+ Qt::Orientation orientation)
+{
+ Q_ASSERT(row >= 0);
+
+ maybeExpandGrid(row, -1, orientation);
+
+ QGridLayoutRowInfo &rowInfo = q_infos[orientation == Qt::Vertical];
+ if (row >= rowInfo.alignments.count())
+ rowInfo.alignments.resize(row + 1);
+ rowInfo.alignments[row] = alignment;
+}
+
+Qt::Alignment QGridLayoutEngine::rowAlignment(int row, Qt::Orientation orientation) const
+{
+ Q_ASSERT(row >= 0);
+ return q_infos[orientation == Qt::Vertical].alignments.value(row);
+}
+
+Qt::Alignment QGridLayoutEngine::effectiveAlignment(const QGridLayoutItem *layoutItem) const
+{
+ Qt::Alignment align = layoutItem->alignment();
+ if (!(align & Qt::AlignVertical_Mask)) {
+ // no vertical alignment, respect the row alignment
+ int y = layoutItem->firstRow();
+ align |= (rowAlignment(y, Qt::Vertical) & Qt::AlignVertical_Mask);
+ if (!align)
+ align = Qt::AlignVCenter;
+ }
+ if (!(align & Qt::AlignHorizontal_Mask)) {
+ // no horizontal alignment, respect the column alignment
+ int x = layoutItem->firstColumn();
+ align |= (rowAlignment(x, Qt::Horizontal) & Qt::AlignHorizontal_Mask);
+ if (!align)
+ align = Qt::AlignHCenter;
+ }
+ return align;
+}
+
+/*!
+ \internal
+ The \a index is only used by QGraphicsLinearLayout to ensure that itemAt() reflects the order
+ of visual arrangement. Strictly speaking it does not have to, but most people expect it to.
+ (And if it didn't we would have to add itemArrangedAt(int index) or something..)
+ */
+void QGridLayoutEngine::insertItem(QGridLayoutItem *item, int index)
+{
+ maybeExpandGrid(item->lastRow(), item->lastColumn());
+
+ if (index == -1)
+ q_items.append(item);
+ else
+ q_items.insert(index, item);
+
+ for (int i = item->firstRow(); i <= item->lastRow(); ++i) {
+ for (int j = item->firstColumn(); j <= item->lastColumn(); ++j) {
+ if (itemAt(i, j))
+ qWarning("QGridLayoutEngine::addItem: Cell (%d, %d) already taken", i, j);
+ setItemAt(i, j, item);
+ }
+ }
+}
+
+void QGridLayoutEngine::addItem(QGridLayoutItem *item)
+{
+ insertItem(item, -1);
+}
+
+void QGridLayoutEngine::removeItem(QGridLayoutItem *item)
+{
+ Q_ASSERT(q_items.contains(item));
+
+ invalidate();
+
+ for (int i = item->firstRow(); i <= item->lastRow(); ++i) {
+ for (int j = item->firstColumn(); j <= item->lastColumn(); ++j) {
+ if (itemAt(i, j) == item)
+ setItemAt(i, j, 0);
+ }
+ }
+
+ q_items.removeAll(item);
+}
+
+
+QGridLayoutItem *QGridLayoutEngine::itemAt(int row, int column, Qt::Orientation orientation) const
+{
+ if (orientation == Qt::Horizontal)
+ qSwap(row, column);
+ if (uint(row) >= uint(rowCount()) || uint(column) >= uint(columnCount()))
+ return 0;
+ return q_grid.at((row * internalGridColumnCount()) + column);
+}
+
+void QGridLayoutEngine::invalidate()
+{
+ q_cachedEffectiveFirstRows[Hor] = -1;
+ q_cachedEffectiveFirstRows[Ver] = -1;
+ q_cachedEffectiveLastRows[Hor] = -1;
+ q_cachedEffectiveLastRows[Ver] = -1;
+ q_cachedDataForStyleInfo.invalidate();
+ q_cachedSize = QSizeF();
+ q_cachedConstraintOrientation = UnknownConstraint;
+}
+
+static void visualRect(QRectF *geom, Qt::LayoutDirection dir, const QRectF &contentsRect)
+{
+ if (dir == Qt::RightToLeft)
+ geom->moveRight(contentsRect.right() - (geom->left() - contentsRect.left()));
+}
+
+void QGridLayoutEngine::setGeometries(const QRectF &contentsGeometry, const QLayoutStyleInfo &styleInfo)
+{
+ if (rowCount() < 1 || columnCount() < 1)
+ return;
+
+ ensureGeometries(contentsGeometry.size(), styleInfo);
+
+ for (int i = q_items.count() - 1; i >= 0; --i) {
+ QGridLayoutItem *item = q_items.at(i);
+
+ qreal x = q_xx[item->firstColumn()];
+ qreal y = q_yy[item->firstRow()];
+ qreal width = q_widths[item->lastColumn()];
+ qreal height = q_heights[item->lastRow()];
+
+ if (item->columnSpan() != 1)
+ width += q_xx[item->lastColumn()] - x;
+ if (item->rowSpan() != 1)
+ height += q_yy[item->lastRow()] - y;
+
+ QRectF geom = item->geometryWithin(contentsGeometry.x() + x, contentsGeometry.y() + y,
+ width, height, q_descents[item->lastRow()], effectiveAlignment(item));
+ visualRect(&geom, visualDirection(), contentsGeometry);
+ item->setGeometry(geom);
+ }
+}
+
+// ### candidate for deletion
+QRectF QGridLayoutEngine::cellRect(const QRectF &contentsGeometry, int row, int column, int rowSpan,
+ int columnSpan, const QLayoutStyleInfo &styleInfo) const
+{
+ if (uint(row) >= uint(rowCount()) || uint(column) >= uint(columnCount())
+ || rowSpan < 1 || columnSpan < 1)
+ return QRectF();
+
+ ensureGeometries(contentsGeometry.size(), styleInfo);
+
+ int lastColumn = qMax(column + columnSpan, columnCount()) - 1;
+ int lastRow = qMax(row + rowSpan, rowCount()) - 1;
+
+ qreal x = q_xx[column];
+ qreal y = q_yy[row];
+ qreal width = q_widths[lastColumn];
+ qreal height = q_heights[lastRow];
+
+ if (columnSpan != 1)
+ width += q_xx[lastColumn] - x;
+ if (rowSpan != 1)
+ height += q_yy[lastRow] - y;
+
+ return QRectF(contentsGeometry.x() + x, contentsGeometry.y() + y, width, height);
+}
+
+QSizeF QGridLayoutEngine::sizeHint(Qt::SizeHint which, const QSizeF &constraint,
+ const QLayoutStyleInfo &styleInfo) const
+{
+ QGridLayoutBox sizehint_totalBoxes[NOrientations];
+
+ bool sizeHintCalculated = false;
+
+ if (hasDynamicConstraint() && rowCount() > 0 && columnCount() > 0) {
+ if (constraintOrientation() == Qt::Vertical) {
+ //We have items whose height depends on their width
+ if (constraint.width() >= 0) {
+ if (q_cachedDataForStyleInfo != styleInfo)
+ ensureColumnAndRowData(&q_columnData, &sizehint_totalBoxes[Hor], NULL, NULL, Qt::Horizontal, styleInfo);
+ else
+ sizehint_totalBoxes[Hor] = q_totalBoxes[Hor];
+ QVector<qreal> sizehint_xx;
+ QVector<qreal> sizehint_widths;
+
+ sizehint_xx.resize(columnCount());
+ sizehint_widths.resize(columnCount());
+ qreal width = constraint.width();
+ //Calculate column widths and positions, and put results in q_xx.data() and q_widths.data() so that we can use this information as
+ //constraints to find the row heights
+ q_columnData.calculateGeometries(0, columnCount(), width, sizehint_xx.data(), sizehint_widths.data(),
+ 0, sizehint_totalBoxes[Hor], q_infos[Hor]);
+ ensureColumnAndRowData(&q_rowData, &sizehint_totalBoxes[Ver], sizehint_xx.data(), sizehint_widths.data(), Qt::Vertical, styleInfo);
+ sizeHintCalculated = true;
+ }
+ } else {
+ if (constraint.height() >= 0) {
+ //We have items whose width depends on their height
+ ensureColumnAndRowData(&q_rowData, &sizehint_totalBoxes[Ver], NULL, NULL, Qt::Vertical, styleInfo);
+ QVector<qreal> sizehint_yy;
+ QVector<qreal> sizehint_heights;
+
+ sizehint_yy.resize(rowCount());
+ sizehint_heights.resize(rowCount());
+ qreal height = constraint.height();
+ //Calculate row heights and positions, and put results in q_yy.data() and q_heights.data() so that we can use this information as
+ //constraints to find the column widths
+ q_rowData.calculateGeometries(0, rowCount(), height, sizehint_yy.data(), sizehint_heights.data(),
+ 0, sizehint_totalBoxes[Ver], q_infos[Ver]);
+ ensureColumnAndRowData(&q_columnData, &sizehint_totalBoxes[Hor], sizehint_yy.data(), sizehint_heights.data(), Qt::Horizontal, styleInfo);
+ sizeHintCalculated = true;
+ }
+ }
+ }
+
+ if (!sizeHintCalculated) {
+ //No items with height for width, so it doesn't matter which order we do these in
+ if (q_cachedDataForStyleInfo != styleInfo) {
+ ensureColumnAndRowData(&q_columnData, &sizehint_totalBoxes[Hor], NULL, NULL, Qt::Horizontal, styleInfo);
+ ensureColumnAndRowData(&q_rowData, &sizehint_totalBoxes[Ver], NULL, NULL, Qt::Vertical, styleInfo);
+ } else {
+ sizehint_totalBoxes[Hor] = q_totalBoxes[Hor];
+ sizehint_totalBoxes[Ver] = q_totalBoxes[Ver];
+ }
+ }
+
+ switch (which) {
+ case Qt::MinimumSize:
+ return QSizeF(sizehint_totalBoxes[Hor].q_minimumSize, sizehint_totalBoxes[Ver].q_minimumSize);
+ case Qt::PreferredSize:
+ return QSizeF(sizehint_totalBoxes[Hor].q_preferredSize, sizehint_totalBoxes[Ver].q_preferredSize);
+ case Qt::MaximumSize:
+ return QSizeF(sizehint_totalBoxes[Hor].q_maximumSize, sizehint_totalBoxes[Ver].q_maximumSize);
+ case Qt::MinimumDescent:
+ return QSizeF(-1.0, sizehint_totalBoxes[Hor].q_minimumDescent); // ### doesn't work
+ default:
+ break;
+ }
+ return QSizeF();
+}
+
+QLayoutPolicy::ControlTypes QGridLayoutEngine::controlTypes(LayoutSide side) const
+{
+ Qt::Orientation orientation = (side == Top || side == Bottom) ? Qt::Vertical : Qt::Horizontal;
+ int row = (side == Top || side == Left) ? effectiveFirstRow(orientation)
+ : effectiveLastRow(orientation);
+ QLayoutPolicy::ControlTypes result = 0;
+
+ for (int column = columnCount(orientation) - 1; column >= 0; --column) {
+ if (QGridLayoutItem *item = itemAt(row, column, orientation))
+ result |= item->controlTypes(side);
+ }
+ return result;
+}
+
+void QGridLayoutEngine::transpose()
+{
+ invalidate();
+
+ for (int i = q_items.count() - 1; i >= 0; --i)
+ q_items.at(i)->transpose();
+
+ qSwap(q_defaultSpacings[Hor], q_defaultSpacings[Ver]);
+ qSwap(q_infos[Hor], q_infos[Ver]);
+
+ regenerateGrid();
+}
+
+void QGridLayoutEngine::setVisualDirection(Qt::LayoutDirection direction)
+{
+ m_visualDirection = direction;
+}
+
+Qt::LayoutDirection QGridLayoutEngine::visualDirection() const
+{
+ return m_visualDirection;
+}
+
+#ifdef QT_DEBUG
+void QGridLayoutEngine::dump(int indent) const
+{
+ qDebug("%*sEngine", indent, "");
+
+ qDebug("%*s Items (%d)", indent, "", q_items.count());
+ int i;
+ for (i = 0; i < q_items.count(); ++i)
+ q_items.at(i)->dump(indent + 2);
+
+ qDebug("%*s Grid (%d x %d)", indent, "", internalGridRowCount(),
+ internalGridColumnCount());
+ for (int row = 0; row < internalGridRowCount(); ++row) {
+ QString message = QLatin1String("[ ");
+ for (int column = 0; column < internalGridColumnCount(); ++column) {
+ message += QString::number(q_items.indexOf(itemAt(row, column))).rightJustified(3);
+ message += QLatin1Char(' ');
+ }
+ message += QLatin1Char(']');
+ qDebug("%*s %s", indent, "", qPrintable(message));
+ }
+
+ if (q_defaultSpacings[Hor].value() >= 0.0 || q_defaultSpacings[Ver].value() >= 0.0)
+ qDebug("%*s Default spacings: %g %g", indent, "", q_defaultSpacings[Hor].value(),
+ q_defaultSpacings[Ver].value());
+
+ qDebug("%*s Column and row info", indent, "");
+ q_infos[Hor].dump(indent + 2);
+ q_infos[Ver].dump(indent + 2);
+
+ qDebug("%*s Column and row data", indent, "");
+ q_columnData.dump(indent + 2);
+ q_rowData.dump(indent + 2);
+
+ qDebug("%*s Geometries output", indent, "");
+ QVector<qreal> *cellPos = &q_yy;
+ for (int pass = 0; pass < 2; ++pass) {
+ QString message;
+ for (i = 0; i < cellPos->count(); ++i) {
+ message += QLatin1String((message.isEmpty() ? "[" : ", "));
+ message += QString::number(cellPos->at(i));
+ }
+ message += QLatin1Char(']');
+ qDebug("%*s %s %s", indent, "", (pass == 0 ? "rows:" : "columns:"), qPrintable(message));
+ cellPos = &q_xx;
+ }
+}
+#endif
+
+void QGridLayoutEngine::maybeExpandGrid(int row, int column, Qt::Orientation orientation)
+{
+ invalidate(); // ### move out of here?
+
+ if (orientation == Qt::Horizontal)
+ qSwap(row, column);
+
+ if (row < rowCount() && column < columnCount())
+ return;
+
+ int oldGridRowCount = internalGridRowCount();
+ int oldGridColumnCount = internalGridColumnCount();
+
+ q_infos[Ver].count = qMax(row + 1, rowCount());
+ q_infos[Hor].count = qMax(column + 1, columnCount());
+
+ int newGridRowCount = internalGridRowCount();
+ int newGridColumnCount = internalGridColumnCount();
+
+ int newGridSize = newGridRowCount * newGridColumnCount;
+ if (newGridSize != q_grid.count()) {
+ q_grid.resize(newGridSize);
+
+ if (newGridColumnCount != oldGridColumnCount) {
+ for (int i = oldGridRowCount - 1; i >= 1; --i) {
+ for (int j = oldGridColumnCount - 1; j >= 0; --j) {
+ int oldIndex = (i * oldGridColumnCount) + j;
+ int newIndex = (i * newGridColumnCount) + j;
+
+ Q_ASSERT(newIndex > oldIndex);
+ q_grid[newIndex] = q_grid[oldIndex];
+ q_grid[oldIndex] = 0;
+ }
+ }
+ }
+ }
+}
+
+void QGridLayoutEngine::regenerateGrid()
+{
+ q_grid.fill(0);
+
+ for (int i = q_items.count() - 1; i >= 0; --i) {
+ QGridLayoutItem *item = q_items.at(i);
+
+ for (int j = item->firstRow(); j <= item->lastRow(); ++j) {
+ for (int k = item->firstColumn(); k <= item->lastColumn(); ++k) {
+ setItemAt(j, k, item);
+ }
+ }
+ }
+}
+
+void QGridLayoutEngine::setItemAt(int row, int column, QGridLayoutItem *item)
+{
+ Q_ASSERT(row >= 0 && row < rowCount());
+ Q_ASSERT(column >= 0 && column < columnCount());
+ q_grid[(row * internalGridColumnCount()) + column] = item;
+}
+
+void QGridLayoutEngine::insertOrRemoveRows(int row, int delta, Qt::Orientation orientation)
+{
+ int oldRowCount = rowCount(orientation);
+ Q_ASSERT(uint(row) <= uint(oldRowCount));
+
+ invalidate();
+
+ // appending rows (or columns) is easy
+ if (row == oldRowCount && delta > 0) {
+ maybeExpandGrid(oldRowCount + delta - 1, -1, orientation);
+ return;
+ }
+
+ q_infos[orientation == Qt::Vertical].insertOrRemoveRows(row, delta);
+
+ for (int i = q_items.count() - 1; i >= 0; --i)
+ q_items.at(i)->insertOrRemoveRows(row, delta, orientation);
+
+ q_grid.resize(internalGridRowCount() * internalGridColumnCount());
+ regenerateGrid();
+}
+
+void QGridLayoutEngine::fillRowData(QGridLayoutRowData *rowData,
+ qreal *colPositions, qreal *colSizes,
+ Qt::Orientation orientation,
+ const QLayoutStyleInfo &styleInfo) const
+{
+ const int ButtonMask = QLayoutPolicy::ButtonBox | QLayoutPolicy::PushButton;
+ const QGridLayoutRowInfo &rowInfo = q_infos[orientation == Qt::Vertical];
+ const QGridLayoutRowInfo &columnInfo = q_infos[orientation == Qt::Horizontal];
+ LayoutSide top = (orientation == Qt::Vertical) ? Top : Left;
+ LayoutSide bottom = (orientation == Qt::Vertical) ? Bottom : Right;
+
+ //QStyle *style = styleInfo.style();
+ /*###
+ QStyleOption option;
+ option.initFrom(styleInfo.widget());
+ */
+ const QLayoutParameter<qreal> &defaultSpacing = q_defaultSpacings[orientation == Qt::Vertical];
+ qreal innerSpacing = 0.0;
+ /* ###
+ if (style)
+ innerSpacing = (qreal)style->pixelMetric(orientation == Qt::Vertical ? QStyle::PM_LayoutVerticalSpacing
+ : QStyle::PM_LayoutHorizontalSpacing,
+ &option, styleInfo.widget());
+ */
+ if (innerSpacing >= 0.0)
+ defaultSpacing.setCachedValue(innerSpacing);
+
+ for (int row = 0; row < rowInfo.count; ++row) {
+ bool rowIsEmpty = true;
+ bool rowIsIdenticalToPrevious = (row > 0);
+
+ for (int column = 0; column < columnInfo.count; ++column) {
+ QGridLayoutItem *item = itemAt(row, column, orientation);
+
+ if (rowIsIdenticalToPrevious && item != itemAt(row - 1, column, orientation))
+ rowIsIdenticalToPrevious = false;
+
+ if (item)
+ rowIsEmpty = false;
+ }
+
+ if ((rowIsEmpty || rowIsIdenticalToPrevious)
+ && rowInfo.spacings.value(row).isDefault()
+ && rowInfo.stretches.value(row).isDefault()
+ && rowInfo.boxes.value(row) == QGridLayoutBox())
+ rowData->ignore.setBit(row, true);
+
+ if (rowInfo.spacings.value(row).isUser()) {
+ rowData->spacings[row] = rowInfo.spacings.at(row).value();
+ } else if (!defaultSpacing.isDefault()) {
+ rowData->spacings[row] = defaultSpacing.value();
+ }
+
+ rowData->stretches[row] = rowInfo.stretches.value(row).value();
+ }
+
+ struct RowAdHocData {
+ int q_row;
+ unsigned int q_hasButtons : 8;
+ unsigned int q_hasNonButtons : 8;
+
+ inline RowAdHocData() : q_row(-1), q_hasButtons(false), q_hasNonButtons(false) {}
+ inline void init(int row) {
+ this->q_row = row;
+ q_hasButtons = false;
+ q_hasNonButtons = false;
+ }
+ inline bool hasOnlyButtons() const { return q_hasButtons && !q_hasNonButtons; }
+ inline bool hasOnlyNonButtons() const { return q_hasNonButtons && !q_hasButtons; }
+ };
+ RowAdHocData lastRowAdHocData;
+ RowAdHocData nextToLastRowAdHocData;
+ RowAdHocData nextToNextToLastRowAdHocData;
+
+ rowData->hasIgnoreFlag = false;
+ for (int row = 0; row < rowInfo.count; ++row) {
+ if (rowData->ignore.testBit(row))
+ continue;
+
+ QGridLayoutBox &rowBox = rowData->boxes[row];
+ if (styleInfo.isWindow()) {
+ nextToNextToLastRowAdHocData = nextToLastRowAdHocData;
+ nextToLastRowAdHocData = lastRowAdHocData;
+ lastRowAdHocData.init(row);
+ }
+
+ bool userRowStretch = rowInfo.stretches.value(row).isUser();
+ int &rowStretch = rowData->stretches[row];
+
+ bool hasIgnoreFlag = true;
+ for (int column = 0; column < columnInfo.count; ++column) {
+ QGridLayoutItem *item = itemAt(row, column, orientation);
+ if (item) {
+ int itemRow = item->firstRow(orientation);
+ int itemColumn = item->firstColumn(orientation);
+
+ if (itemRow == row && itemColumn == column) {
+ int itemStretch = item->stretchFactor(orientation);
+ if (!(item->sizePolicy(orientation) & QLayoutPolicy::IgnoreFlag))
+ hasIgnoreFlag = false;
+ int itemRowSpan = item->rowSpan(orientation);
+
+ int effectiveRowSpan = 1;
+ for (int i = 1; i < itemRowSpan; ++i) {
+ if (!rowData->ignore.testBit(i))
+ ++effectiveRowSpan;
+ }
+
+ QGridLayoutBox *box;
+ if (effectiveRowSpan == 1) {
+ box = &rowBox;
+ if (!userRowStretch && itemStretch != 0)
+ rowStretch = qMax(rowStretch, itemStretch);
+ } else {
+ QGridLayoutMultiCellData &multiCell =
+ rowData->multiCellMap[qMakePair(row, effectiveRowSpan)];
+ box = &multiCell.q_box;
+ multiCell.q_stretch = itemStretch;
+ }
+ // Items with constraints need to be passed the constraint
+ if (colSizes && colPositions && item->hasDynamicConstraint() && orientation == item->dynamicConstraintOrientation()) {
+ /* Get the width of the item by summing up the widths of the columns that it spans.
+ * We need to have already calculated the widths of the columns by calling
+ * q_columns->calculateGeometries() before hand and passing the value in the colSizes
+ * and colPositions parameters.
+ * The variable name is still colSizes even when it actually has the row sizes
+ */
+ qreal length = colSizes[item->lastColumn(orientation)];
+ if (item->columnSpan(orientation) != 1)
+ length += colPositions[item->lastColumn(orientation)] - colPositions[item->firstColumn(orientation)];
+ box->combine(item->box(orientation, length));
+ } else {
+ box->combine(item->box(orientation));
+ }
+
+ if (effectiveRowSpan == 1) {
+ QLayoutPolicy::ControlTypes controls = item->controlTypes(top);
+ if (controls & ButtonMask)
+ lastRowAdHocData.q_hasButtons = true;
+ if (controls & ~ButtonMask)
+ lastRowAdHocData.q_hasNonButtons = true;
+ }
+ }
+ }
+ }
+ if (row < rowInfo.boxes.count()) {
+ QGridLayoutBox rowBoxInfo = rowInfo.boxes.at(row);
+ rowBoxInfo.normalize();
+ rowBox.q_minimumSize = qMax(rowBox.q_minimumSize, rowBoxInfo.q_minimumSize);
+ rowBox.q_maximumSize = qMax(rowBox.q_minimumSize,
+ (rowBoxInfo.q_maximumSize != FLT_MAX ?
+ rowBoxInfo.q_maximumSize : rowBox.q_maximumSize));
+ rowBox.q_preferredSize = qBound(rowBox.q_minimumSize,
+ qMax(rowBox.q_preferredSize, rowBoxInfo.q_preferredSize),
+ rowBox.q_maximumSize);
+ }
+ if (hasIgnoreFlag)
+ rowData->hasIgnoreFlag = true;
+ }
+
+ /*
+ Heuristic: Detect button boxes that don't use QLayoutPolicy::ButtonBox.
+ This is somewhat ad hoc but it usually does the trick.
+ */
+ bool lastRowIsButtonBox = (lastRowAdHocData.hasOnlyButtons()
+ && nextToLastRowAdHocData.hasOnlyNonButtons());
+ bool lastTwoRowsIsButtonBox = (lastRowAdHocData.hasOnlyButtons()
+ && nextToLastRowAdHocData.hasOnlyButtons()
+ && nextToNextToLastRowAdHocData.hasOnlyNonButtons()
+ && orientation == Qt::Vertical);
+
+ if (defaultSpacing.isDefault()) {
+ int prevRow = -1;
+ for (int row = 0; row < rowInfo.count; ++row) {
+ if (rowData->ignore.testBit(row))
+ continue;
+
+ if (prevRow != -1 && !rowInfo.spacings.value(prevRow).isUser()) {
+ qreal &rowSpacing = rowData->spacings[prevRow];
+ for (int column = 0; column < columnInfo.count; ++column) {
+ QGridLayoutItem *item1 = itemAt(prevRow, column, orientation);
+ QGridLayoutItem *item2 = itemAt(row, column, orientation);
+
+ if (item1 && item2 && item1 != item2) {
+ QLayoutPolicy::ControlTypes controls1 = item1->controlTypes(bottom);
+ QLayoutPolicy::ControlTypes controls2 = item2->controlTypes(top);
+
+ if (controls2 & QLayoutPolicy::PushButton) {
+ if ((row == nextToLastRowAdHocData.q_row && lastTwoRowsIsButtonBox)
+ || (row == lastRowAdHocData.q_row && lastRowIsButtonBox)) {
+ controls2 &= ~QLayoutPolicy::PushButton;
+ controls2 |= QLayoutPolicy::ButtonBox;
+ }
+ }
+
+ qreal spacing = styleInfo.combinedLayoutSpacing(controls1, controls2,
+ orientation);
+ if (orientation == Qt::Horizontal) {
+ qreal width1 = rowData->boxes.at(prevRow).q_minimumSize;
+ qreal width2 = rowData->boxes.at(row).q_minimumSize;
+ QRectF rect1 = item1->geometryWithin(0.0, 0.0, width1, FLT_MAX, -1.0, effectiveAlignment(item1));
+ QRectF rect2 = item2->geometryWithin(0.0, 0.0, width2, FLT_MAX, -1.0, effectiveAlignment(item2));
+ spacing -= (width1 - (rect1.x() + rect1.width())) + rect2.x();
+ } else {
+ const QGridLayoutBox &box1 = rowData->boxes.at(prevRow);
+ const QGridLayoutBox &box2 = rowData->boxes.at(row);
+ qreal height1 = box1.q_minimumSize;
+ qreal height2 = box2.q_minimumSize;
+ qreal rowDescent1 = fixedDescent(box1.q_minimumDescent,
+ box1.q_minimumAscent, height1);
+ qreal rowDescent2 = fixedDescent(box2.q_minimumDescent,
+ box2.q_minimumAscent, height2);
+ QRectF rect1 = item1->geometryWithin(0.0, 0.0, FLT_MAX, height1,
+ rowDescent1, effectiveAlignment(item1));
+ QRectF rect2 = item2->geometryWithin(0.0, 0.0, FLT_MAX, height2,
+ rowDescent2, effectiveAlignment(item2));
+ spacing -= (height1 - (rect1.y() + rect1.height())) + rect2.y();
+ }
+ rowSpacing = qMax(spacing, rowSpacing);
+ }
+ }
+ }
+ prevRow = row;
+ }
+ } else if (lastRowIsButtonBox || lastTwoRowsIsButtonBox) {
+ /*
+ Even for styles that define a uniform spacing, we cheat a
+ bit and use the window margin as the spacing. This
+ significantly improves the look of dialogs.
+ */
+ int prevRow = lastRowIsButtonBox ? nextToLastRowAdHocData.q_row
+ : nextToNextToLastRowAdHocData.q_row;
+ if (!defaultSpacing.isUser() && !rowInfo.spacings.value(prevRow).isUser()) {
+ qreal windowMargin = styleInfo.windowMargin(orientation);
+ qreal &rowSpacing = rowData->spacings[prevRow];
+ rowSpacing = qMax(windowMargin, rowSpacing);
+ }
+ }
+}
+
+void QGridLayoutEngine::ensureEffectiveFirstAndLastRows() const
+{
+ if (q_cachedEffectiveFirstRows[Hor] == -1 && !q_items.isEmpty()) {
+ int rowCount = this->rowCount();
+ int columnCount = this->columnCount();
+
+ q_cachedEffectiveFirstRows[Ver] = rowCount;
+ q_cachedEffectiveFirstRows[Hor] = columnCount;
+ q_cachedEffectiveLastRows[Ver] = -1;
+ q_cachedEffectiveLastRows[Hor] = -1;
+
+ for (int i = q_items.count() - 1; i >= 0; --i) {
+ const QGridLayoutItem *item = q_items.at(i);
+
+ for (int j = 0; j < NOrientations; ++j) {
+ Qt::Orientation orientation = (j == Hor) ? Qt::Horizontal : Qt::Vertical;
+ if (item->firstRow(orientation) < q_cachedEffectiveFirstRows[j])
+ q_cachedEffectiveFirstRows[j] = item->firstRow(orientation);
+ if (item->lastRow(orientation) > q_cachedEffectiveLastRows[j])
+ q_cachedEffectiveLastRows[j] = item->lastRow(orientation);
+ }
+ }
+ }
+}
+
+void QGridLayoutEngine::ensureColumnAndRowData(QGridLayoutRowData *rowData, QGridLayoutBox *totalBox,
+ qreal *colPositions, qreal *colSizes,
+ Qt::Orientation orientation,
+ const QLayoutStyleInfo &styleInfo) const
+{
+ rowData->reset(rowCount(orientation));
+ fillRowData(rowData, colPositions, colSizes, orientation, styleInfo);
+ const QGridLayoutRowInfo &rowInfo = q_infos[orientation == Qt::Vertical];
+ rowData->distributeMultiCells(rowInfo);
+ *totalBox = rowData->totalBox(0, rowCount(orientation));
+ //We have items whose width depends on their height
+}
+
+/**
+ returns false if the layout has contradicting constraints (i.e. some items with a horizontal
+ constraint and other items with a vertical constraint)
+ */
+bool QGridLayoutEngine::ensureDynamicConstraint() const
+{
+ if (q_cachedConstraintOrientation == UnknownConstraint) {
+ for (int i = q_items.count() - 1; i >= 0; --i) {
+ QGridLayoutItem *item = q_items.at(i);
+ if (item->hasDynamicConstraint()) {
+ Qt::Orientation itemConstraintOrientation = item->dynamicConstraintOrientation();
+ if (q_cachedConstraintOrientation == UnknownConstraint) {
+ q_cachedConstraintOrientation = itemConstraintOrientation;
+ } else if (q_cachedConstraintOrientation != itemConstraintOrientation) {
+ q_cachedConstraintOrientation = UnfeasibleConstraint;
+ qWarning("QGridLayoutEngine: Unfeasible, cannot mix horizontal and"
+ " vertical constraint in the same layout");
+ return false;
+ }
+ }
+ }
+ if (q_cachedConstraintOrientation == UnknownConstraint)
+ q_cachedConstraintOrientation = NoConstraint;
+ }
+ return true;
+}
+
+bool QGridLayoutEngine::hasDynamicConstraint() const
+{
+ if (!ensureDynamicConstraint())
+ return false;
+ return q_cachedConstraintOrientation != NoConstraint;
+}
+
+/*
+ * return value is only valid if hasConstraint() returns true
+ */
+Qt::Orientation QGridLayoutEngine::constraintOrientation() const
+{
+ (void)ensureDynamicConstraint();
+ return (Qt::Orientation)q_cachedConstraintOrientation;
+}
+
+void QGridLayoutEngine::ensureGeometries(const QSizeF &size,
+ const QLayoutStyleInfo &styleInfo) const
+{
+ if (q_cachedDataForStyleInfo == styleInfo && q_cachedSize == size)
+ return;
+
+ q_cachedDataForStyleInfo = styleInfo;
+ q_cachedSize = size;
+
+ q_xx.resize(columnCount());
+ q_widths.resize(columnCount());
+ q_yy.resize(rowCount());
+ q_heights.resize(rowCount());
+ q_descents.resize(rowCount());
+
+ if (constraintOrientation() != Qt::Horizontal) {
+ //We might have items whose width depends on their height
+ ensureColumnAndRowData(&q_columnData, &q_totalBoxes[Hor], NULL, NULL, Qt::Horizontal, styleInfo);
+ //Calculate column widths and positions, and put results in q_xx.data() and q_widths.data() so that we can use this information as
+ //constraints to find the row heights
+ q_columnData.calculateGeometries(0, columnCount(), size.width(), q_xx.data(), q_widths.data(),
+ 0, q_totalBoxes[Hor], q_infos[Hor] );
+ ensureColumnAndRowData(&q_rowData, &q_totalBoxes[Ver], q_xx.data(), q_widths.data(), Qt::Vertical, styleInfo);
+ //Calculate row heights and positions, and put results in q_yy.data() and q_heights.data()
+ q_rowData.calculateGeometries(0, rowCount(), size.height(), q_yy.data(), q_heights.data(),
+ q_descents.data(), q_totalBoxes[Ver], q_infos[Ver]);
+ } else {
+ //We have items whose height depends on their width
+ ensureColumnAndRowData(&q_rowData, &q_totalBoxes[Ver], NULL, NULL, Qt::Vertical, styleInfo);
+ //Calculate row heights and positions, and put results in q_yy.data() and q_heights.data() so that we can use this information as
+ //constraints to find the column widths
+ q_rowData.calculateGeometries(0, rowCount(), size.height(), q_yy.data(), q_heights.data(),
+ q_descents.data(), q_totalBoxes[Ver], q_infos[Ver]);
+ ensureColumnAndRowData(&q_columnData, &q_totalBoxes[Hor], q_yy.data(), q_heights.data(), Qt::Horizontal, styleInfo);
+ //Calculate row heights and positions, and put results in q_yy.data() and q_heights.data()
+ q_columnData.calculateGeometries(0, columnCount(), size.width(), q_xx.data(), q_widths.data(),
+ 0, q_totalBoxes[Hor], q_infos[Hor]);
+ }
+}
+
+QT_END_NAMESPACE
+
+#endif //QT_NO_GRAPHICSVIEW
diff --git a/src/layouts/qgridlayoutengine_p.h b/src/layouts/qgridlayoutengine_p.h
new file mode 100644
index 000000000..86dec9552
--- /dev/null
+++ b/src/layouts/qgridlayoutengine_p.h
@@ -0,0 +1,559 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Quick Layouts module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights. These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QGRIDLAYOUTENGINE_P_H
+#define QGRIDLAYOUTENGINE_P_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists for the convenience
+// of the graphics view layout classes. This header
+// file may change from version to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qalgorithms.h"
+#include "qbitarray.h"
+#include "qlist.h"
+#include "qmap.h"
+#include "qpair.h"
+#include "qvector.h"
+#include <QtCore/qsize.h>
+#include <QtCore/qrect.h>
+#include "qlayoutpolicy_p.h"
+#include <float.h>
+#include "qdebug.h"
+QT_BEGIN_NAMESPACE
+
+//class QGraphicsLayoutItem;
+class QStyle;
+class QWidget;
+
+class QStyleOption;
+// ### FIX THIS GUY
+class QLayoutStyleInfo
+{
+public:
+ inline QLayoutStyleInfo()
+ : m_valid(true), m_option(0)
+ {
+ m_defaultSpacing[0] = m_defaultSpacing[1] = 6;
+ }
+
+
+ QStyleOption *styleOption() {
+ if (!m_option) {
+ /* ###
+ m_option = new QStyleOption;
+ option.initFrom(styleInfo.widget());
+ */
+ }
+ return m_option;
+ }
+
+ void invalidate() { m_valid = false; }
+ inline QStyle *style() const { return 0; }
+ inline QWidget *widget() const { return 0; }
+ inline bool operator==(const QLayoutStyleInfo &other) const
+ { return m_defaultSpacing[0] == other.m_defaultSpacing[0] && m_defaultSpacing[1] == other.m_defaultSpacing[1]; }
+ inline bool operator!=(const QLayoutStyleInfo &other) const
+ { return !(*this == other); }
+
+ inline void setDefaultSpacing(Qt::Orientation o, qreal spacing){
+ if (spacing >= 0)
+ m_defaultSpacing[o - 1] = spacing;
+ }
+
+ inline qreal defaultSpacing(Qt::Orientation o) const {
+ return m_defaultSpacing[o - 1];
+ }
+
+ inline qreal perItemSpacing(QLayoutPolicy::ControlType /*control1*/,
+ QLayoutPolicy::ControlType /*control2*/,
+ Qt::Orientation /*orientation*/) const
+ {
+ return 6;
+ }
+
+ inline qreal windowMargin(Qt::Orientation orientation) const
+ {
+ qreal margin = -1;
+ Q_UNUSED(orientation);
+ /*
+ if (style()) {
+ margin = style()->pixelMetric(orientation == Qt::Vertical
+ ? QStyle::PM_LayoutBottomMargin
+ : QStyle::PM_LayoutRightMargin,
+ styleOption(), widget());
+ }
+ */
+ return margin;
+ }
+
+ inline qreal combinedLayoutSpacing(QLayoutPolicy::ControlTypes controls1,
+ QLayoutPolicy::ControlTypes controls2, Qt::Orientation orientation) const
+ {
+ qreal spacing = -1;
+ Q_UNUSED(controls1);
+ Q_UNUSED(controls2);
+ Q_UNUSED(orientation);
+ /* ###
+ if (style()) {
+ spacing = style()->combinedLayoutSpacing(controls1, controls2,
+ orientation, styleOption(),
+ widget());
+ }*/
+ return spacing;
+ }
+
+ bool isWindow() const {
+ // return option.state & QStyle::State_Window
+ return false;
+ }
+private:
+ bool m_valid;
+ qreal m_defaultSpacing[2];
+ QStyleOption *m_option;
+};
+
+
+// ### deal with Descent in a similar way
+enum {
+ MinimumSize = Qt::MinimumSize,
+ PreferredSize = Qt::PreferredSize,
+ MaximumSize = Qt::MaximumSize,
+ NSizes
+};
+
+// do not reorder
+enum {
+ Hor,
+ Ver,
+ NOrientations
+};
+
+// do not reorder
+enum LayoutSide {
+ Left,
+ Top,
+ Right,
+ Bottom
+};
+
+enum {
+ NoConstraint,
+ HorizontalConstraint, // Width depends on the height
+ VerticalConstraint, // Height depends on the width
+ UnknownConstraint, // need to update cache
+ UnfeasibleConstraint // not feasible, it be has some items with Vertical and others with Horizontal constraints
+};
+
+template <typename T>
+class QLayoutParameter
+{
+public:
+ enum State { Default, User, Cached };
+
+ inline QLayoutParameter() : q_value(T()), q_state(Default) {}
+ inline QLayoutParameter(T value, State state = Default) : q_value(value), q_state(state) {}
+
+ inline void setUserValue(T value) {
+ q_value = value;
+ q_state = User;
+ }
+ inline void setCachedValue(T value) const {
+ if (q_state != User) {
+ q_value = value;
+ q_state = Cached;
+ }
+ }
+ inline T value() const { return q_value; }
+ inline T value(T defaultValue) const { return isUser() ? q_value : defaultValue; }
+ inline bool isDefault() const { return q_state == Default; }
+ inline bool isUser() const { return q_state == User; }
+ inline bool isCached() const { return q_state == Cached; }
+
+private:
+ mutable T q_value;
+ mutable State q_state;
+};
+
+class QStretchParameter : public QLayoutParameter<int>
+{
+public:
+ QStretchParameter() : QLayoutParameter<int>(-1) {}
+
+};
+
+class QGridLayoutBox
+{
+public:
+ inline QGridLayoutBox()
+ : q_minimumSize(0), q_preferredSize(0), q_maximumSize(FLT_MAX),
+ q_minimumDescent(-1), q_minimumAscent(-1) {}
+
+ void add(const QGridLayoutBox &other, int stretch, qreal spacing);
+ void combine(const QGridLayoutBox &other);
+ void normalize();
+
+#ifdef QT_DEBUG
+ void dump(int indent = 0) const;
+#endif
+ // This code could use the union-struct-array trick, but a compiler
+ // bug prevents this from working.
+ qreal q_minimumSize;
+ qreal q_preferredSize;
+ qreal q_maximumSize;
+ qreal q_minimumDescent;
+ qreal q_minimumAscent;
+ inline qreal &q_sizes(int which)
+ {
+ qreal *t;
+ switch (which) {
+ case Qt::MinimumSize:
+ t = &q_minimumSize;
+ break;
+ case Qt::PreferredSize:
+ t = &q_preferredSize;
+ break;
+ case Qt::MaximumSize:
+ t = &q_maximumSize;
+ break;
+ case Qt::MinimumDescent:
+ t = &q_minimumDescent;
+ break;
+ case (Qt::MinimumDescent + 1):
+ t = &q_minimumAscent;
+ break;
+ default:
+ t = 0;
+ break;
+ }
+ return *t;
+ }
+ inline const qreal &q_sizes(int which) const
+ {
+ const qreal *t;
+ switch (which) {
+ case Qt::MinimumSize:
+ t = &q_minimumSize;
+ break;
+ case Qt::PreferredSize:
+ t = &q_preferredSize;
+ break;
+ case Qt::MaximumSize:
+ t = &q_maximumSize;
+ break;
+ case Qt::MinimumDescent:
+ t = &q_minimumDescent;
+ break;
+ case (Qt::MinimumDescent + 1):
+ t = &q_minimumAscent;
+ break;
+ default:
+ t = 0;
+ break;
+ }
+ return *t;
+ }
+};
+
+bool operator==(const QGridLayoutBox &box1, const QGridLayoutBox &box2);
+inline bool operator!=(const QGridLayoutBox &box1, const QGridLayoutBox &box2)
+ { return !operator==(box1, box2); }
+
+class QGridLayoutMultiCellData
+{
+public:
+ inline QGridLayoutMultiCellData() : q_stretch(-1) {}
+
+ QGridLayoutBox q_box;
+ int q_stretch;
+};
+
+typedef QMap<QPair<int, int>, QGridLayoutMultiCellData> MultiCellMap;
+
+class QGridLayoutRowInfo;
+
+class QGridLayoutRowData
+{
+public:
+ void reset(int count);
+ void distributeMultiCells(const QGridLayoutRowInfo &rowInfo);
+ void calculateGeometries(int start, int end, qreal targetSize, qreal *positions, qreal *sizes,
+ qreal *descents, const QGridLayoutBox &totalBox,
+ const QGridLayoutRowInfo &rowInfo);
+ QGridLayoutBox totalBox(int start, int end) const;
+ void stealBox(int start, int end, int which, qreal *positions, qreal *sizes);
+
+#ifdef QT_DEBUG
+ void dump(int indent = 0) const;
+#endif
+
+ QBitArray ignore; // ### rename q_
+ QVector<QGridLayoutBox> boxes;
+ MultiCellMap multiCellMap;
+ QVector<int> stretches;
+ QVector<qreal> spacings;
+ bool hasIgnoreFlag;
+};
+
+class QGridLayoutItem
+{
+public:
+ QGridLayoutItem(int row, int column, int rowSpan = 1, int columnSpan = 1,
+ Qt::Alignment alignment = 0);
+
+ inline int firstRow() const { return q_firstRows[Ver]; }
+ inline int firstColumn() const { return q_firstRows[Hor]; }
+ inline int rowSpan() const { return q_rowSpans[Ver]; }
+ inline int columnSpan() const { return q_rowSpans[Hor]; }
+ inline int lastRow() const { return firstRow() + rowSpan() - 1; }
+ inline int lastColumn() const { return firstColumn() + columnSpan() - 1; }
+
+ int firstRow(Qt::Orientation orientation) const;
+ int firstColumn(Qt::Orientation orientation) const;
+ int lastRow(Qt::Orientation orientation) const;
+ int lastColumn(Qt::Orientation orientation) const;
+ int rowSpan(Qt::Orientation orientation) const;
+ int columnSpan(Qt::Orientation orientation) const;
+ void setFirstRow(int row, Qt::Orientation orientation = Qt::Vertical);
+ void setRowSpan(int rowSpan, Qt::Orientation orientation = Qt::Vertical);
+
+ int stretchFactor(Qt::Orientation orientation) const;
+ void setStretchFactor(int stretch, Qt::Orientation orientation);
+
+ inline Qt::Alignment alignment() const { return q_alignment; }
+ inline void setAlignment(Qt::Alignment alignment) { q_alignment = alignment; }
+
+ virtual QLayoutPolicy::Policy sizePolicy(Qt::Orientation orientation) const = 0;
+ virtual QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint) const = 0;
+
+ virtual void setGeometry(const QRectF &rect) = 0;
+ /*
+ returns true if the size policy returns true for either hasHeightForWidth()
+ or hasWidthForHeight()
+ */
+ virtual bool hasDynamicConstraint() const { return false; }
+ virtual Qt::Orientation dynamicConstraintOrientation() const { return Qt::Horizontal; }
+
+
+ QLayoutPolicy::ControlTypes controlTypes(LayoutSide side) const;
+
+ QGridLayoutBox box(Qt::Orientation orientation, qreal constraint = -1.0) const;
+ QRectF geometryWithin(qreal x, qreal y, qreal width, qreal height, qreal rowDescent, Qt::Alignment align) const;
+
+
+ void transpose();
+ void insertOrRemoveRows(int row, int delta, Qt::Orientation orientation = Qt::Vertical);
+ QSizeF effectiveMaxSize(const QSizeF &constraint) const;
+
+#ifdef QT_DEBUG
+ void dump(int indent = 0) const;
+#endif
+
+//private:
+ //###QGridLayoutEngine *q_engine; // ### needed?
+ int q_firstRows[NOrientations];
+ int q_rowSpans[NOrientations];
+ int q_stretches[NOrientations];
+ Qt::Alignment q_alignment;
+};
+
+class QGridLayoutRowInfo
+{
+public:
+ inline QGridLayoutRowInfo() : count(0) {}
+
+ void insertOrRemoveRows(int row, int delta);
+
+#ifdef QT_DEBUG
+ void dump(int indent = 0) const;
+#endif
+
+ int count;
+ QVector<QStretchParameter> stretches;
+ QVector<QLayoutParameter<qreal> > spacings;
+ QVector<Qt::Alignment> alignments;
+ QVector<QGridLayoutBox> boxes;
+};
+
+class QGridLayoutEngine
+{
+public:
+ QGridLayoutEngine();
+ inline ~QGridLayoutEngine() { qDeleteAll(q_items); }
+
+ int rowCount(Qt::Orientation orientation) const;
+ int columnCount(Qt::Orientation orientation) const;
+ inline int rowCount() const { return q_infos[Ver].count; }
+ inline int columnCount() const { return q_infos[Hor].count; }
+ // returns the number of items inserted, which may be less than (rowCount * columnCount)
+ int itemCount() const;
+ QGridLayoutItem *itemAt(int index) const;
+
+ int effectiveFirstRow(Qt::Orientation orientation = Qt::Vertical) const;
+ int effectiveLastRow(Qt::Orientation orientation = Qt::Vertical) const;
+
+ void setSpacing(qreal spacing, Qt::Orientations orientations);
+ qreal spacing(Qt::Orientation orientation, const QLayoutStyleInfo &styleInfo = QLayoutStyleInfo()) const;
+ // ### setSpacingAfterRow(), spacingAfterRow()
+ void setRowSpacing(int row, qreal spacing, Qt::Orientation orientation = Qt::Vertical);
+ qreal rowSpacing(int row, Qt::Orientation orientation = Qt::Vertical) const;
+
+ void setRowStretchFactor(int row, int stretch, Qt::Orientation orientation = Qt::Vertical);
+ int rowStretchFactor(int row, Qt::Orientation orientation = Qt::Vertical) const;
+
+ //void setStretchFactor(QGraphicsLayoutItem *layoutItem, int stretch,
+ // Qt::Orientation orientation);
+ //int stretchFactor(QGraphicsLayoutItem *layoutItem, Qt::Orientation orientation) const;
+
+ void setRowSizeHint(Qt::SizeHint which, int row, qreal size,
+ Qt::Orientation orientation = Qt::Vertical);
+ qreal rowSizeHint(Qt::SizeHint which, int row,
+ Qt::Orientation orientation = Qt::Vertical) const;
+
+ void setRowAlignment(int row, Qt::Alignment alignment, Qt::Orientation orientation);
+ Qt::Alignment rowAlignment(int row, Qt::Orientation orientation) const;
+
+ //void setAlignment(QGraphicsLayoutItem *layoutItem, Qt::Alignment alignment);
+ //Qt::Alignment alignment(QGraphicsLayoutItem *layoutItem) const;
+ Qt::Alignment effectiveAlignment(const QGridLayoutItem *layoutItem) const;
+
+
+ void insertItem(QGridLayoutItem *item, int index);
+ void addItem(QGridLayoutItem *item);
+ void removeItem(QGridLayoutItem *item);
+ void deleteItems()
+ {
+ const QList<QGridLayoutItem *> oldItems = q_items;
+ q_items.clear(); // q_items are used as input when the grid is regenerated in removeRows
+ // The following calls to removeRows are suboptimal
+ int rows = rowCount(Qt::Vertical);
+ removeRows(0, rows, Qt::Vertical);
+ rows = rowCount(Qt::Horizontal);
+ removeRows(0, rows, Qt::Horizontal);
+ qDeleteAll(oldItems);
+ }
+
+ QGridLayoutItem *itemAt(int row, int column, Qt::Orientation orientation = Qt::Vertical) const;
+ inline void insertRow(int row, Qt::Orientation orientation = Qt::Vertical)
+ { insertOrRemoveRows(row, +1, orientation); }
+ inline void removeRows(int row, int count, Qt::Orientation orientation)
+ { insertOrRemoveRows(row, -count, orientation); }
+
+ void invalidate();
+ void setGeometries(const QRectF &contentsGeometry, const QLayoutStyleInfo &styleInfo = QLayoutStyleInfo());
+ QRectF cellRect(const QRectF &contentsGeometry, int row, int column, int rowSpan, int columnSpan,
+ const QLayoutStyleInfo &styleInfo = QLayoutStyleInfo()) const;
+ QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint,
+ const QLayoutStyleInfo &styleInfo = QLayoutStyleInfo()) const;
+
+ // heightForWidth / widthForHeight support
+ QSizeF dynamicallyConstrainedSizeHint(Qt::SizeHint which, const QSizeF &constraint) const;
+ bool ensureDynamicConstraint() const;
+ bool hasDynamicConstraint() const;
+ Qt::Orientation constraintOrientation() const;
+
+
+ QLayoutPolicy::ControlTypes controlTypes(LayoutSide side) const;
+ void transpose();
+ void setVisualDirection(Qt::LayoutDirection direction);
+ Qt::LayoutDirection visualDirection() const;
+#ifdef QT_DEBUG
+ void dump(int indent = 0) const;
+#endif
+
+//private:
+ static int grossRoundUp(int n) { return ((n + 2) | 0x3) - 2; }
+
+ void maybeExpandGrid(int row, int column, Qt::Orientation orientation = Qt::Vertical);
+ void regenerateGrid();
+ inline int internalGridRowCount() const { return grossRoundUp(rowCount()); }
+ inline int internalGridColumnCount() const { return grossRoundUp(columnCount()); }
+ void setItemAt(int row, int column, QGridLayoutItem *item);
+ void insertOrRemoveRows(int row, int delta, Qt::Orientation orientation = Qt::Vertical);
+ void fillRowData(QGridLayoutRowData *rowData,
+ qreal *colPositions, qreal *colSizes,
+ Qt::Orientation orientation = Qt::Vertical, const QLayoutStyleInfo &styleInfo = QLayoutStyleInfo()) const;
+ void ensureEffectiveFirstAndLastRows() const;
+ void ensureColumnAndRowData(QGridLayoutRowData *rowData, QGridLayoutBox *totalBox,
+ qreal *colPositions, qreal *colSizes,
+ Qt::Orientation orientation,
+ const QLayoutStyleInfo &styleInfo = QLayoutStyleInfo()) const;
+
+ void ensureGeometries(const QSizeF &size, const QLayoutStyleInfo &styleInfo = QLayoutStyleInfo()) const;
+
+ // User input
+ QVector<QGridLayoutItem *> q_grid;
+ QList<QGridLayoutItem *> q_items;
+ QLayoutParameter<qreal> q_defaultSpacings[NOrientations];
+ QGridLayoutRowInfo q_infos[NOrientations];
+ Qt::LayoutDirection m_visualDirection;
+
+ // Lazily computed from the above user input
+ mutable int q_cachedEffectiveFirstRows[NOrientations];
+ mutable int q_cachedEffectiveLastRows[NOrientations];
+ mutable quint8 q_cachedConstraintOrientation : 3;
+
+ // Layout item input
+ mutable QLayoutStyleInfo q_cachedDataForStyleInfo;
+ mutable QGridLayoutRowData q_columnData;
+ mutable QGridLayoutRowData q_rowData;
+ mutable QGridLayoutBox q_totalBoxes[NOrientations];
+
+ // Output
+ mutable QSizeF q_cachedSize;
+ mutable QVector<qreal> q_xx;
+ mutable QVector<qreal> q_yy;
+ mutable QVector<qreal> q_widths;
+ mutable QVector<qreal> q_heights;
+ mutable QVector<qreal> q_descents;
+
+ friend class QGridLayoutItem;
+};
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/layouts/qlayoutpolicy.cpp b/src/layouts/qlayoutpolicy.cpp
new file mode 100644
index 000000000..9a154768e
--- /dev/null
+++ b/src/layouts/qlayoutpolicy.cpp
@@ -0,0 +1,136 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Quick Layouts module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights. These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qlayoutpolicy_p.h"
+#include <QtCore/qdebug.h>
+#include <QtCore/qdatastream.h>
+
+QT_BEGIN_NAMESPACE
+
+void QLayoutPolicy::setControlType(ControlType type)
+{
+ /*
+ The control type is a flag type, with values 0x1, 0x2, 0x4, 0x8, 0x10,
+ etc. In memory, we pack it onto the available bits (CTSize) in
+ setControlType(), and unpack it here.
+
+ Example:
+
+ 0x00000001 maps to 0
+ 0x00000002 maps to 1
+ 0x00000004 maps to 2
+ 0x00000008 maps to 3
+ etc.
+ */
+
+ int i = 0;
+ while (true) {
+ if (type & (0x1 << i)) {
+ bits.ctype = i;
+ return;
+ }
+ ++i;
+ }
+}
+
+QLayoutPolicy::ControlType QLayoutPolicy::controlType() const
+{
+ return QLayoutPolicy::ControlType(1 << bits.ctype);
+}
+
+#ifndef QT_NO_DATASTREAM
+
+/*!
+ \relates QLayoutPolicy
+
+ Writes the size \a policy to the data stream \a stream.
+
+ \sa{Serializing Qt Data Types}{Format of the QDataStream operators}
+*/
+QDataStream &operator<<(QDataStream &stream, const QLayoutPolicy &policy)
+{
+ // The order here is for historical reasons. (compatibility with Qt4)
+ quint32 data = (policy.bits.horPolicy | // [0, 3]
+ policy.bits.verPolicy << 4 | // [4, 7]
+ policy.bits.hfw << 8 | // [8]
+ policy.bits.ctype << 9 | // [9, 13]
+ policy.bits.wfh << 14 | // [14]
+ //policy.bits.padding << 15 | // [15]
+ policy.bits.verStretch << 16 | // [16, 23]
+ policy.bits.horStretch << 24); // [24, 31]
+ return stream << data;
+}
+
+#define VALUE_OF_BITS(data, bitstart, bitcount) ((data >> bitstart) & ((1 << bitcount) -1))
+
+/*!
+ \relates QLayoutPolicy
+
+ Reads the size \a policy from the data stream \a stream.
+
+ \sa{Serializing Qt Data Types}{Format of the QDataStream operators}
+*/
+QDataStream &operator>>(QDataStream &stream, QLayoutPolicy &policy)
+{
+ quint32 data;
+ stream >> data;
+ policy.bits.horPolicy = VALUE_OF_BITS(data, 0, 4);
+ policy.bits.verPolicy = VALUE_OF_BITS(data, 4, 4);
+ policy.bits.hfw = VALUE_OF_BITS(data, 8, 1);
+ policy.bits.ctype = VALUE_OF_BITS(data, 9, 5);
+ policy.bits.wfh = VALUE_OF_BITS(data, 14, 1);
+ policy.bits.padding = 0;
+ policy.bits.verStretch = VALUE_OF_BITS(data, 16, 8);
+ policy.bits.horStretch = VALUE_OF_BITS(data, 24, 8);
+ return stream;
+}
+#endif // QT_NO_DATASTREAM
+
+#ifndef QT_NO_DEBUG_STREAM
+QDebug operator<<(QDebug dbg, const QLayoutPolicy &p)
+{
+ dbg.nospace() << "QLayoutPolicy(horizontalPolicy = " << p.horizontalPolicy()
+ << ", verticalPolicy = " << p.verticalPolicy() << ')';
+ return dbg.space();
+}
+#endif
+
+QT_END_NAMESPACE
diff --git a/src/layouts/qlayoutpolicy_p.h b/src/layouts/qlayoutpolicy_p.h
new file mode 100644
index 000000000..0f3e6a081
--- /dev/null
+++ b/src/layouts/qlayoutpolicy_p.h
@@ -0,0 +1,180 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Quick Layouts module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights. These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QLAYOUTPOLICY_H
+#define QLAYOUTPOLICY_H
+
+#include <QtCore/qobject.h>
+
+QT_BEGIN_NAMESPACE
+
+
+class QVariant;
+
+class QLayoutPolicy
+{
+ Q_ENUMS(Policy)
+
+public:
+ enum PolicyFlag {
+ GrowFlag = 1,
+ ExpandFlag = 2,
+ ShrinkFlag = 4,
+ IgnoreFlag = 8
+ };
+
+ enum Policy {
+ Fixed = 0,
+ Minimum = GrowFlag,
+ Maximum = ShrinkFlag,
+ Preferred = GrowFlag | ShrinkFlag,
+ MinimumExpanding = GrowFlag | ExpandFlag,
+ Expanding = GrowFlag | ShrinkFlag | ExpandFlag,
+ Ignored = ShrinkFlag | GrowFlag | IgnoreFlag
+ };
+
+ enum ControlType {
+ DefaultType = 0x00000001,
+ ButtonBox = 0x00000002,
+ CheckBox = 0x00000004,
+ ComboBox = 0x00000008,
+ Frame = 0x00000010,
+ GroupBox = 0x00000020,
+ Label = 0x00000040,
+ Line = 0x00000080,
+ LineEdit = 0x00000100,
+ PushButton = 0x00000200,
+ RadioButton = 0x00000400,
+ Slider = 0x00000800,
+ SpinBox = 0x00001000,
+ TabWidget = 0x00002000,
+ ToolButton = 0x00004000
+ };
+ Q_DECLARE_FLAGS(ControlTypes, ControlType)
+
+ QLayoutPolicy() : data(0) { }
+
+ QLayoutPolicy(Policy horizontal, Policy vertical, ControlType type = DefaultType)
+ : data(0) {
+ bits.horPolicy = horizontal;
+ bits.verPolicy = vertical;
+ setControlType(type);
+ }
+ Policy horizontalPolicy() const { return static_cast<Policy>(bits.horPolicy); }
+ Policy verticalPolicy() const { return static_cast<Policy>(bits.verPolicy); }
+ ControlType controlType() const;
+
+ void setHorizontalPolicy(Policy d) { bits.horPolicy = d; }
+ void setVerticalPolicy(Policy d) { bits.verPolicy = d; }
+ void setControlType(ControlType type);
+
+ Qt::Orientations expandingDirections() const {
+ Qt::Orientations result;
+ if (verticalPolicy() & ExpandFlag)
+ result |= Qt::Vertical;
+ if (horizontalPolicy() & ExpandFlag)
+ result |= Qt::Horizontal;
+ return result;
+ }
+
+ void setHeightForWidth(bool b) { bits.hfw = b; }
+ bool hasHeightForWidth() const { return bits.hfw; }
+ void setWidthForHeight(bool b) { bits.wfh = b; }
+ bool hasWidthForHeight() const { return bits.wfh; }
+
+ bool operator==(const QLayoutPolicy& s) const { return data == s.data; }
+ bool operator!=(const QLayoutPolicy& s) const { return data != s.data; }
+
+ int horizontalStretch() const { return static_cast<int>(bits.horStretch); }
+ int verticalStretch() const { return static_cast<int>(bits.verStretch); }
+ void setHorizontalStretch(int stretchFactor) { bits.horStretch = static_cast<quint32>(qBound(0, stretchFactor, 255)); }
+ void setVerticalStretch(int stretchFactor) { bits.verStretch = static_cast<quint32>(qBound(0, stretchFactor, 255)); }
+
+ void transpose();
+
+
+private:
+#ifndef QT_NO_DATASTREAM
+ friend QDataStream &operator<<(QDataStream &, const QLayoutPolicy &);
+ friend QDataStream &operator>>(QDataStream &, QLayoutPolicy &);
+#endif
+ QLayoutPolicy(int i) : data(i) { }
+
+ union {
+ struct {
+ quint32 horStretch : 8;
+ quint32 verStretch : 8;
+ quint32 horPolicy : 4;
+ quint32 verPolicy : 4;
+ quint32 ctype : 5;
+ quint32 hfw : 1;
+ quint32 wfh : 1;
+ quint32 padding : 1; // feel free to use
+ } bits;
+ quint32 data;
+ };
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QLayoutPolicy::ControlTypes)
+
+#ifndef QT_NO_DATASTREAM
+QDataStream &operator<<(QDataStream &, const QLayoutPolicy &);
+QDataStream &operator>>(QDataStream &, QLayoutPolicy &);
+#endif
+
+#ifndef QT_NO_DEBUG_STREAM
+QDebug operator<<(QDebug dbg, const QLayoutPolicy &);
+#endif
+
+inline void QLayoutPolicy::transpose() {
+ Policy hData = horizontalPolicy();
+ Policy vData = verticalPolicy();
+ int hStretch = horizontalStretch();
+ int vStretch = verticalStretch();
+ setHorizontalPolicy(vData);
+ setVerticalPolicy(hData);
+ setHorizontalStretch(vStretch);
+ setVerticalStretch(hStretch);
+}
+
+QT_END_NAMESPACE
+
+#endif // QLAYOUTPOLICY_H
diff --git a/src/layouts/qmldir b/src/layouts/qmldir
new file mode 100644
index 000000000..ec1d66a24
--- /dev/null
+++ b/src/layouts/qmldir
@@ -0,0 +1,3 @@
+module QtQuick.Layouts
+plugin qquicklayoutsplugin
+typeinfo plugins.qmltypes
diff --git a/src/layouts/qquickgridlayoutengine_p.h b/src/layouts/qquickgridlayoutengine_p.h
new file mode 100644
index 000000000..7a81f3c40
--- /dev/null
+++ b/src/layouts/qquickgridlayoutengine_p.h
@@ -0,0 +1,326 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Quick Layouts module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights. These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QQUICKGRIDLAYOUTENGINE_P_H
+#define QQUICKGRIDLAYOUTENGINE_P_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists for the convenience
+// of the graphics view layout classes. This header
+// file may change from version to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qgridlayoutengine_p.h"
+#include "qquickitem.h"
+#include "qquicklayout_p.h"
+#include <QtWidgets/qsizepolicy.h>
+#include "qdebug.h"
+QT_BEGIN_NAMESPACE
+
+
+/*
+ The layout engine assumes:
+ 1. minimum <= preferred <= maximum
+ 2. descent is within minimum and maximum bounds (### verify)
+
+ This function helps to ensure that by the following rules (in the following order):
+ 1. If minimum > maximum, set minimum = maximum
+ 2. Make sure preferred is not outside the [minimum,maximum] range.
+ 3. If descent > minimum, set descent = minimum (### verify if this is correct, it might
+ need some refinements to multiline texts)
+
+ If any values are "not set" (i.e. 0 or less), they will be left untouched, so that we
+ know which values needs to be fetched from the implicit hints (not user hints).
+ */
+static void normalizeHints(qreal &minimum, qreal &preferred, qreal &maximum, qreal &descent)
+{
+ if (minimum > 0 && maximum > 0 && minimum > maximum)
+ minimum = maximum;
+
+ if (preferred > 0) {
+ if (minimum > 0 && preferred < minimum) {
+ preferred = minimum;
+ } else if (maximum > 0 && preferred > maximum) {
+ preferred = maximum;
+ }
+ }
+
+ if (minimum > 0 && descent > minimum)
+ descent = minimum;
+}
+
+static void boundSize(QSizeF &result, const QSizeF &size)
+{
+ if (size.width() > 0 && size.width() < result.width())
+ result.setWidth(size.width());
+ if (size.height() > 0 && size.height() < result.height())
+ result.setHeight(size.height());
+}
+
+static void expandSize(QSizeF &result, const QSizeF &size)
+{
+ if (size.width() > 0 && size.width() > result.width())
+ result.setWidth(size.width());
+ if (size.height() > 0 && size.height() > result.height())
+ result.setHeight(size.height());
+}
+
+static inline void combineHints(qreal ¤t, qreal fallbackHint)
+{
+ if (current <= 0)
+ current = fallbackHint;
+}
+
+class QQuickGridLayoutItem : public QGridLayoutItem {
+public:
+ QQuickGridLayoutItem(QQuickItem *item, int row, int column,
+ int rowSpan = 1, int columnSpan = 1, Qt::Alignment alignment = 0)
+ : QGridLayoutItem(row, column, rowSpan, columnSpan, alignment), m_item(item), sizeHintCacheDirty(true) {}
+
+
+ typedef qreal (QQuickLayoutAttached::*SizeGetter)() const;
+
+ QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
+ {
+ Q_UNUSED(constraint); // Quick Layouts does not support constraint atm
+ return effectiveSizeHints()[which];
+ }
+
+ QSizeF *effectiveSizeHints() const
+ {
+ if (!sizeHintCacheDirty)
+ return cachedSizeHints;
+
+ QQuickLayoutAttached *info = 0;
+ // First, retrieve the user-specified hints from the attached "Layout." properties
+ if (QObject *attached = qmlAttachedPropertiesObject<QQuickLayout>(m_item, false)) {
+ info = static_cast<QQuickLayoutAttached *>(attached);
+
+ struct Getters {
+ SizeGetter call[NSizes];
+ };
+
+ static Getters horGetters = {
+ {&QQuickLayoutAttached::minimumWidth, &QQuickLayoutAttached::preferredWidth, &QQuickLayoutAttached::maximumWidth},
+ };
+
+ static Getters verGetters = {
+ {&QQuickLayoutAttached::minimumHeight, &QQuickLayoutAttached::preferredHeight, &QQuickLayoutAttached::maximumHeight}
+ };
+ for (int i = 0; i < NSizes; ++i) {
+ SizeGetter getter = horGetters.call[i];
+ Q_ASSERT(getter);
+ cachedSizeHints[i].setWidth((info->*getter)());
+ getter = verGetters.call[i];
+ Q_ASSERT(getter);
+ cachedSizeHints[i].setHeight((info->*getter)());
+ }
+ } else {
+ for (int i = 0; i < NSizes; ++i)
+ cachedSizeHints[i] = QSize();
+ }
+ cachedSizeHints[Qt::MinimumDescent] = QSize(); //### FIXME when baseline support is added
+
+ QSizeF &minS = cachedSizeHints[Qt::MinimumSize];
+ QSizeF &prefS = cachedSizeHints[Qt::PreferredSize];
+ QSizeF &maxS = cachedSizeHints[Qt::MaximumSize];
+ QSizeF &descentS = cachedSizeHints[Qt::MinimumDescent];
+
+ // For instance, will normalize the following user-set hints
+ // from: [10, 5, 60]
+ // to: [10, 10, 60]
+ normalizeHints(minS.rwidth(), prefS.rwidth(), maxS.rwidth(), descentS.rwidth());
+ normalizeHints(minS.rheight(), prefS.rheight(), maxS.rheight(), descentS.rheight());
+/*
+ The following table illustrates the preference of the properties used for measuring layout
+ items. If present, the USER properties will be preferred. If USER properties are not present,
+ the HINT 1 properties will be preferred. Finally, the HINT 2 properties will be used as an
+ ultimate fallback.
+
+ | USER | HINT 1 | HINT 2
+ -----+--------------------------------+-------------------+-------
+ MIN | Layout.minimumWidth | | 0
+ PREF | Layout.preferredWidth | implicitWidth | width
+ MAX | Layout.maximumWidth | | 100000
+ -----+--------------------------------+-------------------+--------
+SizePolicy | Layout.horizontalSizePolicy | Expanding if layout, Fixed if item |
+
+*/
+ //--- GATHER MINIMUM SIZE HINTS ---
+ // They are always 0
+
+ //--- GATHER PREFERRED SIZE HINTS ---
+ // First, from implicitWidth/Height
+ qreal &prefWidth = cachedSizeHints[Qt::PreferredSize].rwidth();
+ qreal &prefHeight = cachedSizeHints[Qt::PreferredSize].rheight();
+ combineHints(prefWidth, m_item->implicitWidth());
+ combineHints(prefHeight, m_item->implicitHeight());
+
+ // If that fails, make an ultimate fallback to width/height
+
+ if (!info && prefWidth <= 0 || prefHeight <= 0)
+ info = static_cast<QQuickLayoutAttached *>(qmlAttachedPropertiesObject<QQuickLayout>(m_item));
+
+ const bool was = info->setChangesNotificationEnabled(false);
+ if (prefWidth <= 0) {
+ prefWidth = m_item->width();
+ info->setPreferredWidth(prefWidth);
+ }
+ if (prefHeight <= 0) {
+ prefHeight = m_item->height();
+ info->setPreferredHeight(prefHeight);
+ }
+ info->setChangesNotificationEnabled(was);
+
+ //--- GATHER MAXIMUM SIZE HINTS ---
+ // They are always q_declarativeLayoutMaxSize
+ combineHints(cachedSizeHints[Qt::MaximumSize].rwidth(), q_declarativeLayoutMaxSize);
+ combineHints(cachedSizeHints[Qt::MaximumSize].rheight(), q_declarativeLayoutMaxSize);
+
+ //--- GATHER DESCENT
+ // ### Not implemented
+
+
+ // Normalize again after the implicit hints have been gathered
+ // (using different rules than normalizeHints actually??))
+ // This is consistent with QGraphicsLayoutItemPrivate::effectiveSizeHints()
+/*
+The following shows how the different [min,pref,max] combinations are normalized after performing
+each normalization stage (maxS, minS and prefS):
+
+input [1, 2, 3] [1, 3, 2] [2, 1, 3] [2, 3, 1] [3, 2, 1] [3, 1, 2]
+------------------------------------------------------------------
+maxS [1, 2, 3] [1, 3, 3] [2, 1, 3] [2, 3, 3] [3, 2, 3] [3, 1, 3]
+minS [1, 2, 3] [1, 3, 3] [1, 1, 3] [2, 3, 3] [2, 2, 3] [1, 1, 3]
+prefS [1, 2, 3] [1, 3, 3] [1, 1, 3] [2, 3, 3] [2, 2, 3] [1, 1, 3] ###No change here.
+*/
+ boundSize(minS, maxS);
+ expandSize(prefS, minS);
+ boundSize(prefS, maxS);
+ //expandSize(maxS, prefS); // [3,2,1] > [3,2,2]
+ //expandSize(maxS, minS);
+ //boundSize(maxS, QSizeF(q_declarativeLayoutMaxSize, q_declarativeLayoutMaxSize));
+
+
+ //boundSize(minS, prefS); // [3,2,1] > [2,2,1]
+ //boundSize(minS, maxS);
+
+ // Both of these are invariants and inconsistent with the above combinations of the
+ // "symmetric" combination (i.e. boundSize(minS, prefS) and expandSize(maxS, prefS)
+ //expandSize(prefS, minS); //[3,2,1] > [3,3,1]
+ //boundSize(prefS, maxS); //[3,2,1] > [3,1,1]
+
+ sizeHintCacheDirty = false;
+ return cachedSizeHints;
+ }
+
+ void invalidate()
+ {
+ quickLayoutDebug() << "engine::invalidate()";
+ sizeHintCacheDirty = true;
+ }
+
+
+ static QLayoutPolicy::Policy fromSizePolicy(QQuickLayout::SizePolicy policy) {
+ return (policy == QQuickLayout::Fixed ? QLayoutPolicy::Fixed : QLayoutPolicy::Preferred);
+ }
+
+ QLayoutPolicy::Policy sizePolicy(Qt::Orientation orientation) const
+ {
+ if (QObject *attached = qmlAttachedPropertiesObject<QQuickLayout>(m_item, false)) {
+ QQuickLayoutAttached *info = static_cast<QQuickLayoutAttached *>(attached);
+ if (info) {
+ QLayoutPolicy sp(fromSizePolicy(info->horizontalSizePolicy()), fromSizePolicy(info->verticalSizePolicy()));
+ return (orientation == Qt::Horizontal) ? sp.horizontalPolicy()
+ : sp.verticalPolicy();
+ }
+ }
+ // ### Correct way is to, go through all child items and combine the policies.
+ return qobject_cast<QQuickLayout*>(m_item) ? QLayoutPolicy::Preferred : QLayoutPolicy::Fixed;
+ }
+
+ void setGeometry(const QRectF &rect)
+ {
+ m_item->setPosition(rect.topLeft());
+ m_item->setSize(rect.size());
+ }
+
+ QQuickItem *layoutItem() const { return m_item; }
+
+ QQuickItem *m_item;
+private:
+ mutable QSizeF cachedSizeHints[Qt::NSizeHints];
+ mutable bool sizeHintCacheDirty;
+};
+
+class QQuickGridLayoutEngine : public QGridLayoutEngine {
+public:
+ QQuickGridLayoutEngine() : QGridLayoutEngine() {} //### not needed
+
+ int indexOf(QQuickItem *item) const {
+ for (int i = 0; i < q_items.size(); ++i) {
+ if (item == static_cast<QQuickGridLayoutItem*>(q_items.at(i))->layoutItem())
+ return i;
+ }
+ return -1;
+ }
+
+ QQuickGridLayoutItem *findLayoutItem(QQuickItem *layoutItem) const
+ {
+ for (int i = q_items.count() - 1; i >= 0; --i) {
+ QQuickGridLayoutItem *item = static_cast<QQuickGridLayoutItem*>(q_items.at(i));
+ if (item->layoutItem() == layoutItem)
+ return item;
+ }
+ return 0;
+ }
+};
+
+
+
+QT_END_NAMESPACE
+
+#endif // QQUICKGRIDLAYOUTENGINE_P_H
diff --git a/src/controls/qquicklayout.cpp b/src/layouts/qquicklayout.cpp
similarity index 50%
rename from src/controls/qquicklayout.cpp
rename to src/layouts/qquicklayout.cpp
index 2013a4874..e295e6cdf 100644
--- a/src/controls/qquicklayout.cpp
+++ b/src/layouts/qquicklayout.cpp
@@ -3,7 +3,7 @@
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
-** This file is part of the Qt Quick Controls module of the Qt Toolkit.
+** This file is part of the Qt Quick Layouts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
@@ -41,164 +41,204 @@
#include "qquicklayout_p.h"
#include <QEvent>
-#include <QApplication>
+#include <QtCore/qcoreapplication.h>
#include <QtCore/qnumeric.h>
QT_BEGIN_NAMESPACE
-static const qreal q_declarativeLayoutMaxSize = 10e8;
-
-
-QQuickComponentsLayoutAttached::QQuickComponentsLayoutAttached(QObject *parent)
+QQuickLayoutAttached::QQuickLayoutAttached(QObject *parent)
: QObject(parent),
m_minimumWidth(0),
m_minimumHeight(0),
+ m_preferredWidth(0),
+ m_preferredHeight(0),
m_maximumWidth(q_declarativeLayoutMaxSize),
m_maximumHeight(q_declarativeLayoutMaxSize),
- m_verticalSizePolicy(QQuickComponentsLayout::Fixed),
- m_horizontalSizePolicy(QQuickComponentsLayout::Fixed)
+ m_verticalSizePolicy(QQuickLayout::Fixed),
+ m_horizontalSizePolicy(QQuickLayout::Fixed),
+ m_row(0),
+ m_column(0),
+ m_rowSpan(1),
+ m_columnSpan(1),
+ m_changesNotificationEnabled(true)
{
}
-void QQuickComponentsLayoutAttached::setMinimumWidth(qreal width)
+void QQuickLayoutAttached::setMinimumWidth(qreal width)
{
if (qIsNaN(width) || m_minimumWidth == width)
return;
m_minimumWidth = width;
- updateLayout();
+ invalidateItem();
emit minimumWidthChanged();
}
-void QQuickComponentsLayoutAttached::setMinimumHeight(qreal height)
+void QQuickLayoutAttached::setMinimumHeight(qreal height)
{
if (qIsNaN(height) || m_minimumHeight == height)
return;
m_minimumHeight = height;
- updateLayout();
+ invalidateItem();
emit minimumHeightChanged();
}
-void QQuickComponentsLayoutAttached::setMaximumWidth(qreal width)
+void QQuickLayoutAttached::setPreferredWidth(qreal width)
+{
+ if (qIsNaN(width) || m_preferredWidth == width)
+ return;
+
+ m_preferredWidth = width;
+ if (m_changesNotificationEnabled)
+ invalidateItem();
+ emit preferredWidthChanged();
+}
+
+void QQuickLayoutAttached::setPreferredHeight(qreal height)
+{
+ if (qIsNaN(height) || m_preferredHeight == height)
+ return;
+
+ m_preferredHeight = height;
+ if (m_changesNotificationEnabled)
+ invalidateItem();
+ emit preferredHeightChanged();
+}
+
+void QQuickLayoutAttached::setMaximumWidth(qreal width)
{
if (qIsNaN(width) || m_maximumWidth == width)
return;
m_maximumWidth = width;
- updateLayout();
+ invalidateItem();
emit maximumWidthChanged();
}
-void QQuickComponentsLayoutAttached::setMaximumHeight(qreal height)
+void QQuickLayoutAttached::setMaximumHeight(qreal height)
{
if (qIsNaN(height) || m_maximumHeight == height)
return;
m_maximumHeight = height;
- updateLayout();
+ invalidateItem();
emit maximumHeightChanged();
}
-void QQuickComponentsLayoutAttached::setVerticalSizePolicy(QQuickComponentsLayout::SizePolicy policy)
+void QQuickLayoutAttached::setVerticalSizePolicy(QQuickLayout::SizePolicy policy)
{
if (m_verticalSizePolicy != policy) {
m_verticalSizePolicy = policy;
- updateLayout();
+ invalidateItem();
emit verticalSizePolicyChanged();
}
}
-void QQuickComponentsLayoutAttached::setHorizontalSizePolicy(QQuickComponentsLayout::SizePolicy policy)
+void QQuickLayoutAttached::setHorizontalSizePolicy(QQuickLayout::SizePolicy policy)
{
if (m_horizontalSizePolicy != policy) {
m_horizontalSizePolicy = policy;
- updateLayout();
+ invalidateItem();
emit horizontalSizePolicyChanged();
}
}
-void QQuickComponentsLayoutAttached::updateLayout()
+void QQuickLayoutAttached::invalidateItem()
{
- if (m_layout)
- m_layout->invalidate();
+ quickLayoutDebug() << "QQuickLayoutAttached::invalidateItem";
+ if (QQuickLayout *layout = parentLayout()) {
+ layout->invalidate(item());
+ }
}
+QQuickLayout *QQuickLayoutAttached::parentLayout() const
+{
+ QQuickItem *parentItem = item()->parentItem();
+ if (qobject_cast<QQuickLayout *>(parentItem))
+ return static_cast<QQuickLayout *>(parentItem);
+ return 0;
+}
+
+QQuickItem *QQuickLayoutAttached::item() const
+{
+ Q_ASSERT(qobject_cast<QQuickItem*>(parent()));
+ return static_cast<QQuickItem*>(parent());
+}
+
+
+
-QQuickComponentsLayout::QQuickComponentsLayout(QQuickItem *parent)
- : QQuickItem(parent),
+QQuickLayout::QQuickLayout(QQuickLayoutPrivate &dd, QQuickItem *parent)
+ : QQuickItem(dd, parent),
m_dirty(false)
{
-
}
-QQuickComponentsLayout::~QQuickComponentsLayout()
+QQuickLayout::~QQuickLayout()
{
}
-void QQuickComponentsLayout::setupItemLayout(QQuickItem *item)
+void QQuickLayout::setupItemLayout(QQuickItem *item)
{
- QObject *attached = qmlAttachedPropertiesObject<QQuickComponentsLayout>(item);
- QQuickComponentsLayoutAttached *info = static_cast<QQuickComponentsLayoutAttached *>(attached);
- info->m_layout = this;
+ //### not needed anymore, since these are deducted from hierarcy?
+ qmlAttachedPropertiesObject<QQuickLayout>(item);
}
-QQuickComponentsLayoutAttached *QQuickComponentsLayout::qmlAttachedProperties(QObject *object)
+QQuickLayoutAttached *QQuickLayout::qmlAttachedProperties(QObject *object)
{
- return new QQuickComponentsLayoutAttached(object);
+ return new QQuickLayoutAttached(object);
}
-bool QQuickComponentsLayout::event(QEvent *e)
+bool QQuickLayout::event(QEvent *e)
{
if (e->type() == QEvent::LayoutRequest)
- reconfigureTopDown();
+ rearrangeTopDown();
return QQuickItem::event(e);
}
-void QQuickComponentsLayout::invalidate()
+void QQuickLayout::componentComplete()
+{
+ QQuickItem::componentComplete();
+}
+
+void QQuickLayout::invalidate(QQuickItem * /*childItem*/)
{
if (m_dirty)
return;
- QQuickComponentsLayout *layout = this;
- QQuickComponentsLayout *parentLayout = 0;
-
- while (!layout->m_dirty) {
- layout->m_dirty = true;
- parentLayout = qobject_cast<QQuickComponentsLayout *>(layout->parentItem());
+ m_dirty = true;
- if (!parentLayout)
- break;
- else
- layout = parentLayout;
+ if (QQuickLayout *parentLayout = qobject_cast<QQuickLayout *>(parentItem())) {
+ parentLayout->invalidate(this);
+ } else {
+ quickLayoutDebug() << "QQuickLayout::invalidate(), postEvent";
+ QCoreApplication::postEvent(this, new QEvent(QEvent::LayoutRequest));
}
-
- // just post events for top level layouts
- if (!parentLayout)
- QApplication::postEvent(layout, new QEvent(QEvent::LayoutRequest));
}
-void QQuickComponentsLayout::reconfigureTopDown()
+void QQuickLayout::rearrangeTopDown()
{
+ quickLayoutDebug() << "QQuickLayout::rearrangeTopDown()";
const QList<QQuickItem *> &children = childItems();
- reconfigureLayout();
+ rearrange();
foreach (QQuickItem *child, children) {
- QQuickComponentsLayout *layout = qobject_cast<QQuickComponentsLayout *>(child);
+ QQuickLayout *layout = qobject_cast<QQuickLayout *>(child);
if (layout && layout->m_dirty)
- layout->reconfigureTopDown();
+ layout->rearrangeTopDown();
}
m_dirty = false;
}
-void QQuickComponentsLayout::reconfigureLayout()
+void QQuickLayout::rearrange()
{
}
diff --git a/src/layouts/qquicklayout_p.h b/src/layouts/qquicklayout_p.h
new file mode 100644
index 000000000..9c7c04e7c
--- /dev/null
+++ b/src/layouts/qquicklayout_p.h
@@ -0,0 +1,220 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Quick Layouts module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights. These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QQUICKLAYOUT_P_H
+#define QQUICKLAYOUT_P_H
+
+#include <QPointer>
+#include <QQuickItem>
+#include <private/qquickitem_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QQuickLayoutAttached;
+
+static const qreal q_declarativeLayoutMaxSize = 10e8;
+
+#if 0 && !defined(QT_NO_DEBUG) && !defined(QT_NO_DEBUG_OUTPUT)
+# define quickLayoutDebug QMessageLogger(__FILE__, __LINE__, Q_FUNC_INFO).debug
+#else
+# define quickLayoutDebug QT_NO_QWARNING_MACRO
+#endif
+
+class QQuickLayoutPrivate;
+class QQuickLayout : public QQuickItem
+{
+ Q_OBJECT
+ Q_ENUMS(SizePolicy)
+public:
+ enum SizePolicy {
+ Fixed,
+ Expanding
+ };
+
+ enum SizeHint {
+ MinimumSize = 0,
+ PreferredSize,
+ MaximumSize,
+ NSizes
+ };
+
+ explicit QQuickLayout(QQuickLayoutPrivate &dd, QQuickItem *parent = 0);
+ ~QQuickLayout();
+
+ static QQuickLayoutAttached *qmlAttachedProperties(QObject *object);
+
+
+ void componentComplete();
+ virtual void invalidate(QQuickItem * childItem = 0);
+protected:
+ bool event(QEvent *e);
+ void rearrangeTopDown();
+ virtual void rearrange();
+ void setupItemLayout(QQuickItem *item);
+
+
+ enum Orientation {
+ Vertical = 0,
+ Horizontal,
+ NOrientations
+ };
+
+private:
+ bool m_dirty;
+
+ Q_DECLARE_PRIVATE(QQuickLayout)
+
+ friend class QQuickLayoutAttached;
+};
+
+
+class QQuickLayoutPrivate : public QQuickItemPrivate
+{
+ Q_DECLARE_PUBLIC(QQuickLayout)
+};
+
+
+class QQuickLayoutAttached : public QObject
+{
+ Q_OBJECT
+ Q_PROPERTY(qreal minimumWidth READ minimumWidth WRITE setMinimumWidth NOTIFY minimumWidthChanged)
+ Q_PROPERTY(qreal minimumHeight READ minimumHeight WRITE setMinimumHeight NOTIFY minimumHeightChanged)
+ Q_PROPERTY(qreal preferredWidth READ preferredWidth WRITE setPreferredWidth NOTIFY preferredWidthChanged)
+ Q_PROPERTY(qreal preferredHeight READ preferredHeight WRITE setPreferredHeight NOTIFY preferredHeightChanged)
+ Q_PROPERTY(qreal maximumWidth READ maximumWidth WRITE setMaximumWidth NOTIFY maximumWidthChanged)
+ Q_PROPERTY(qreal maximumHeight READ maximumHeight WRITE setMaximumHeight NOTIFY maximumHeightChanged)
+ Q_PROPERTY(QQuickLayout::SizePolicy verticalSizePolicy READ verticalSizePolicy WRITE setVerticalSizePolicy)
+ Q_PROPERTY(QQuickLayout::SizePolicy horizontalSizePolicy READ horizontalSizePolicy WRITE setHorizontalSizePolicy)
+ Q_PROPERTY(int row READ row WRITE setRow)
+ Q_PROPERTY(int column READ column WRITE setColumn)
+ Q_PROPERTY(int rowSpan READ rowSpan WRITE setRowSpan)
+ Q_PROPERTY(int columnSpan READ columnSpan WRITE setColumnSpan)
+
+public:
+ QQuickLayoutAttached(QObject *object);
+
+ qreal minimumWidth() const { return m_minimumWidth; }
+ void setMinimumWidth(qreal width);
+
+ qreal minimumHeight() const { return m_minimumHeight; }
+ void setMinimumHeight(qreal height);
+
+ qreal preferredWidth() const { return m_preferredWidth; }
+ void setPreferredWidth(qreal width);
+
+ qreal preferredHeight() const { return m_preferredHeight; }
+ void setPreferredHeight(qreal width);
+
+ qreal maximumWidth() const { return m_maximumWidth; }
+ void setMaximumWidth(qreal width);
+
+ qreal maximumHeight() const { return m_maximumHeight; }
+ void setMaximumHeight(qreal height);
+
+ QQuickLayout::SizePolicy verticalSizePolicy() const { return m_verticalSizePolicy; }
+ void setVerticalSizePolicy(QQuickLayout::SizePolicy policy);
+
+ QQuickLayout::SizePolicy horizontalSizePolicy() const { return m_horizontalSizePolicy; }
+ void setHorizontalSizePolicy(QQuickLayout::SizePolicy policy);
+
+ int row() const { return m_row; }
+ void setRow(int row) { m_row = row; }
+ int column() const { return m_column; }
+ void setColumn(int column) { m_column = column; }
+
+ int rowSpan() const { return m_rowSpan; }
+ void setRowSpan(int span) { m_rowSpan = span; }
+ int columnSpan() const { return m_columnSpan; }
+ void setColumnSpan(int span) { m_columnSpan = span; }
+
+ bool setChangesNotificationEnabled(bool enabled)
+ {
+ const bool old = m_changesNotificationEnabled;
+ m_changesNotificationEnabled = enabled;
+ return old;
+ }
+
+signals:
+ void minimumWidthChanged();
+ void minimumHeightChanged();
+ void preferredWidthChanged();
+ void preferredHeightChanged();
+ void maximumWidthChanged();
+ void maximumHeightChanged();
+ void verticalSizePolicyChanged();
+ void horizontalSizePolicyChanged();
+
+private:
+ void invalidateItem();
+ QQuickLayout *parentLayout() const;
+ QQuickItem *item() const;
+private:
+ qreal m_minimumWidth;
+ qreal m_minimumHeight;
+ qreal m_preferredWidth;
+ qreal m_preferredHeight;
+ qreal m_maximumWidth;
+ qreal m_maximumHeight;
+ QQuickLayout::SizePolicy m_verticalSizePolicy;
+ QQuickLayout::SizePolicy m_horizontalSizePolicy;
+
+ // GridLayout specific properties
+ int m_row;
+ int m_column;
+ int m_rowSpan;
+ int m_columnSpan;
+
+ bool m_changesNotificationEnabled;
+
+ friend class QQuickLayout;
+};
+
+inline QQuickLayoutAttached *attachedLayoutObject(QQuickItem *item, bool create = true)
+{
+ return static_cast<QQuickLayoutAttached *>(qmlAttachedPropertiesObject<QQuickLayout>(item, create));
+}
+
+QT_END_NAMESPACE
+
+QML_DECLARE_TYPE(QQuickLayout)
+QML_DECLARE_TYPEINFO(QQuickLayout, QML_HAS_ATTACHED_PROPERTIES)
+
+#endif // QQUICKLAYOUT_P_H
diff --git a/src/layouts/qquicklinearlayout.cpp b/src/layouts/qquicklinearlayout.cpp
new file mode 100644
index 000000000..2d6b830a8
--- /dev/null
+++ b/src/layouts/qquicklinearlayout.cpp
@@ -0,0 +1,426 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Quick Layouts module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights. These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qquicklinearlayout_p.h"
+#include <QtCore/qnumeric.h>
+#include "qdebug.h"
+/*!
+ \qmltype RowLayout
+ \instantiates QQuickRowLayout
+ \inqmlmodule QtDesktop 1.0
+ \brief RowLayout is doing bla...bla...
+*/
+
+/*!
+ \qmltype ColumnLayout
+ \instantiates QQuickColumnLayout
+ \inqmlmodule QtDesktop 1.0
+ \brief ColumnLayout is doing bla...bla...
+*/
+
+QT_BEGIN_NAMESPACE
+
+static const qreal q_declarativeLayoutDefaultSpacing = 4.0;
+
+
+QQuickGridLayoutBase::QQuickGridLayoutBase(QQuickGridLayoutBasePrivate &dd,
+ Qt::Orientation orientation,
+ QQuickItem *parent /*= 0*/)
+ : QQuickLayout(dd, parent)
+{
+ Q_D(QQuickGridLayoutBase);
+ d->orientation = orientation;
+}
+
+Qt::Orientation QQuickGridLayoutBase::orientation() const
+{
+ Q_D(const QQuickGridLayoutBase);
+ return d->orientation;
+}
+
+void QQuickGridLayoutBase::setOrientation(Qt::Orientation orientation)
+{
+ Q_D(QQuickGridLayoutBase);
+ if (d->orientation == orientation)
+ return;
+
+ d->orientation = orientation;
+ invalidate();
+}
+
+void QQuickGridLayoutBase::componentComplete()
+{
+ QQuickLayout::componentComplete();
+ quickLayoutDebug() << "QQuickGridLayoutBase::componentComplete()";
+ updateLayoutItems();
+ quickLayoutDebug() << "QQuickGridLayoutBase::componentComplete() DONE";
+
+}
+
+/*
+ Invalidation happens like this as a reaction to that a size hint changes on an item "a":
+
+ Suppose we have the following Qml document:
+ RowLayout {
+ id: l1
+ RowLayout {
+ id: l2
+ Item {
+ id: a
+ }
+ Item {
+ id: b
+ }
+ }
+ }
+
+ 1. l2->invalidateChildItem(a) is called on l2, where item refers to "a".
+ (this will dirty the cached size hints of item "a")
+ 2. l2->invalidate() is called
+ this will :
+ i) invalidate the layout engine
+ ii) dirty the cached size hints of item "l2" (by calling parentLayout()->invalidateChildItem
+
+ */
+/*!
+ \internal
+
+ Invalidates \a childItem and this layout.
+ After a call to invalidate, the next call to retrieve e.g. sizeHint will be up-to date.
+ This function will also call QQuickLayout::invalidate(0), to ensure that the parent layout
+ is invalidated.
+ */
+void QQuickGridLayoutBase::invalidate(QQuickItem *childItem)
+{
+ Q_D(QQuickGridLayoutBase);
+ if (!isComponentComplete())
+ return;
+ quickLayoutDebug() << "QQuickGridLayoutBase::invalidate()";
+
+ if (childItem) {
+ if (QQuickGridLayoutItem *layoutItem = d->engine.findLayoutItem(childItem))
+ layoutItem->invalidate();
+ }
+ // invalidate engine
+ d->engine.invalidate();
+
+ QQuickLayout::invalidate(this);
+}
+
+void QQuickGridLayoutBase::updateLayoutItems()
+{
+ Q_D(QQuickGridLayoutBase);
+ if (!isComponentComplete())
+ return;
+ quickLayoutDebug() << "QQuickGridLayoutBase::updateLayoutItems";
+ d->engine.deleteItems();
+ foreach (QQuickItem *child, childItems()) {
+ if (child->isVisible())
+ insertLayoutItem(child);
+ }
+
+ invalidate();
+ quickLayoutDebug() << "QQuickGridLayoutBase::updateLayoutItems LEAVING";
+ //propagateLayoutSizeHints();
+}
+
+void QQuickGridLayoutBase::propagateLayoutSizeHints()
+{
+ Q_D(QQuickGridLayoutBase);
+ quickLayoutDebug() << "propagateLayoutSizeHints()";
+ QObject *attached = qmlAttachedPropertiesObject<QQuickLayout>(this);
+ QQuickLayoutAttached *info = static_cast<QQuickLayoutAttached *>(attached);
+
+ const QSizeF min = d->engine.sizeHint(Qt::MinimumSize, QSizeF());
+ const QSizeF pref = d->engine.sizeHint(Qt::PreferredSize, QSizeF());
+ const QSizeF max = d->engine.sizeHint(Qt::MaximumSize, QSizeF());
+
+ info->setMinimumWidth(min.width());
+ info->setMinimumHeight(min.height());
+ setImplicitWidth(pref.width());
+ setImplicitHeight(pref.height());
+ info->setMaximumWidth(max.width());
+ info->setMaximumHeight(max.height());
+}
+
+void QQuickGridLayoutBase::itemChange(ItemChange change, const ItemChangeData &value)
+{
+ if (change == ItemChildAddedChange) {
+ quickLayoutDebug() << "ItemChildAddedChange";
+ QQuickItem *item = value.item;
+ QObject::connect(item, SIGNAL(destroyed()), this, SLOT(onItemDestroyed()));
+ QObject::connect(item, SIGNAL(visibleChanged()), this, SLOT(onItemVisibleChanged()));
+ QObject::connect(item, SIGNAL(implicitWidthChanged()), this, SLOT(onItemImplicitSizeChanged()));
+
+ if (isComponentComplete() && isVisible())
+ updateLayoutItems();
+ } else if (change == ItemChildRemovedChange) {
+ quickLayoutDebug() << "ItemChildRemovedChange";
+ QQuickItem *item = value.item;
+ QObject::disconnect(item, SIGNAL(destroyed()), this, SLOT(onItemDestroyed()));
+ QObject::disconnect(item, SIGNAL(visibleChanged()), this, SLOT(onItemVisibleChanged()));
+ QObject::disconnect(item, SIGNAL(implicitWidthChanged()), this, SLOT(onItemImplicitSizeChanged()));
+ if (isComponentComplete() && isVisible())
+ updateLayoutItems();
+ }
+
+ QQuickLayout::itemChange(change, value);
+}
+
+void QQuickGridLayoutBase::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
+{
+ QQuickLayout::geometryChanged(newGeometry, oldGeometry);
+ if (!isComponentComplete() || !newGeometry.isValid())
+ return;
+ quickLayoutDebug() << "QQuickGridLayoutBase::geometryChanged" << newGeometry << oldGeometry;
+ rearrange();
+}
+
+void QQuickGridLayoutBase::insertLayoutItem(QQuickItem *item)
+{
+ Q_D(QQuickGridLayoutBase);
+ if (!item) {
+ qWarning("QGraphicsGridLayout::addItem: cannot add null item");
+ return;
+ }
+ QQuickLayoutAttached *info = attachedLayoutObject(item, false);
+ int row = 0;
+ int column = 0;
+ int rowSpan = 1;
+ int columnSpan = 1;
+ Qt::Alignment alignment = 0;
+ if (info) {
+ row = info->row();
+ column = info->column();
+ rowSpan = info->rowSpan();
+ columnSpan = info->columnSpan();
+ }
+ if (row < 0 || column < 0) {
+ qWarning("QQuickGridLayoutBase::insertLayoutItemAt: invalid row/column: %d",
+ row < 0 ? row : column);
+ return;
+ }
+ if (columnSpan < 1 || rowSpan < 1) {
+ qWarning("QQuickGridLayoutBase::addItem: invalid row span/column span: %d",
+ rowSpan < 1 ? rowSpan : columnSpan);
+ return;
+ }
+ QQuickGridLayoutItem *layoutItem = new QQuickGridLayoutItem(item, row, column, rowSpan, columnSpan, alignment);
+ d->engine.insertItem(layoutItem, -1);
+
+ setupItemLayout(item);
+}
+
+void QQuickGridLayoutBase::removeGridItem(QGridLayoutItem *gridItem)
+{
+ Q_D(QQuickGridLayoutBase);
+ const int index = gridItem->firstRow(d->orientation);
+ d->engine.removeItem(gridItem);
+ d->engine.removeRows(index, 1, d->orientation);
+}
+
+void QQuickGridLayoutBase::removeLayoutItem(QQuickItem *item)
+{
+ Q_D(QQuickGridLayoutBase);
+ quickLayoutDebug() << "QQuickGridLayoutBase::removeLayoutItem";
+ if (QQuickGridLayoutItem *gridItem = d->engine.findLayoutItem(item)) {
+ removeGridItem(gridItem);
+ delete gridItem;
+ invalidate();
+ }
+}
+
+void QQuickGridLayoutBase::onItemVisibleChanged()
+{
+ if (!isComponentComplete())
+ return;
+ quickLayoutDebug() << "QQuickGridLayoutBase::onItemVisibleChanged";
+ updateLayoutItems();
+}
+
+void QQuickGridLayoutBase::onItemDestroyed()
+{
+ Q_D(QQuickGridLayoutBase);
+ quickLayoutDebug() << "QQuickGridLayoutBase::onItemDestroyed";
+ QQuickItem *inDestruction = static_cast<QQuickItem *>(sender());
+ if (QQuickGridLayoutItem *gridItem = d->engine.findLayoutItem(inDestruction)) {
+ removeGridItem(gridItem);
+ delete gridItem;
+ invalidate();
+ }
+}
+
+void QQuickGridLayoutBase::onItemImplicitSizeChanged()
+{
+ Q_D(QQuickGridLayoutBase);
+ QQuickItem *item = static_cast<QQuickItem *>(sender());
+ Q_ASSERT(item);
+ //invalidate(item);
+}
+
+void QQuickGridLayoutBase::rearrange()
+{
+ Q_D(QQuickGridLayoutBase);
+ if (!isComponentComplete())
+ return;
+
+ quickLayoutDebug() << "QQuickGridLayoutBase::rearrange()";
+ Qt::LayoutDirection visualDir = Qt::LeftToRight; // ### Fix if RTL support is needed
+ d->engine.setVisualDirection(visualDir);
+
+ /*
+ qreal left, top, right, bottom;
+ left = top = right = bottom = 0; // ### support for margins?
+ if (visualDir == Qt::RightToLeft)
+ qSwap(left, right);
+ */
+
+ QRectF effectiveRect(0, 0, width(), height());
+ d->engine.setGeometries(effectiveRect);
+
+ // propagate hints to upper levels
+ propagateLayoutSizeHints();
+}
+
+
+/**********************************
+ **
+ ** QQuickGridLayout
+ **
+ **/
+QQuickGridLayout::QQuickGridLayout(QQuickItem *parent /* = 0*/)
+ : QQuickGridLayoutBase(*new QQuickGridLayoutPrivate, Qt::Horizontal, parent)
+{
+ Q_D(QQuickGridLayout);
+ d->horizontalSpacing = q_declarativeLayoutDefaultSpacing;
+ d->verticalSpacing = q_declarativeLayoutDefaultSpacing;
+ d->engine.setSpacing(d->horizontalSpacing, Qt::Horizontal);
+ d->engine.setSpacing(d->verticalSpacing, Qt::Vertical);
+}
+
+qreal QQuickGridLayout::horizontalSpacing() const
+{
+ Q_D(const QQuickGridLayout);
+ return d->horizontalSpacing;
+}
+
+void QQuickGridLayout::setHorizontalSpacing(qreal spacing)
+{
+ Q_D(QQuickGridLayout);
+ if (qIsNaN(spacing) || d->horizontalSpacing == spacing)
+ return;
+
+ d->horizontalSpacing = spacing;
+ d->engine.setSpacing(spacing, Qt::Horizontal | Qt::Vertical);
+ invalidate();
+}
+
+qreal QQuickGridLayout::verticalSpacing() const
+{
+ Q_D(const QQuickGridLayout);
+ return d->verticalSpacing;
+}
+
+void QQuickGridLayout::setVerticalSpacing(qreal spacing)
+{
+ Q_D(QQuickGridLayout);
+ if (qIsNaN(spacing) || d->verticalSpacing == spacing)
+ return;
+
+ d->verticalSpacing = spacing;
+ d->engine.setSpacing(spacing, Qt::Horizontal | Qt::Vertical);
+ invalidate();
+}
+
+
+/**********************************
+ **
+ ** QQuickLinearLayout
+ **
+ **/
+QQuickLinearLayout::QQuickLinearLayout(Qt::Orientation orientation,
+ QQuickItem *parent /*= 0*/)
+ : QQuickGridLayoutBase(*new QQuickLinearLayoutPrivate, orientation, parent)
+{
+ Q_D(QQuickLinearLayout);
+ d->spacing = q_declarativeLayoutDefaultSpacing;
+ d->engine.setSpacing(d->spacing, Qt::Horizontal | Qt::Vertical);
+}
+
+qreal QQuickLinearLayout::spacing() const
+{
+ Q_D(const QQuickLinearLayout);
+ return d->spacing;
+}
+
+void QQuickLinearLayout::setSpacing(qreal spacing)
+{
+ Q_D(QQuickLinearLayout);
+ if (qIsNaN(spacing) || d->spacing == spacing)
+ return;
+
+ d->spacing = spacing;
+ d->engine.setSpacing(spacing, Qt::Horizontal | Qt::Vertical);
+ invalidate();
+}
+
+
+void QQuickLinearLayout::insertLayoutItem(QQuickItem *item)
+{
+ Q_D(QQuickLinearLayout);
+ const int index = d->engine.rowCount(d->orientation);
+ d->engine.insertRow(index, d->orientation);
+
+ int gridRow = 0;
+ int gridColumn = index;
+ if (d->orientation == Qt::Vertical)
+ qSwap(gridRow, gridColumn);
+ QQuickGridLayoutItem *layoutItem = new QQuickGridLayoutItem(item, gridRow, gridColumn, 1, 1, 0);
+ d->engine.insertItem(layoutItem, index);
+
+ setupItemLayout(item);
+
+ invalidate();
+}
+
+
+
+QT_END_NAMESPACE
diff --git a/src/layouts/qquicklinearlayout_p.h b/src/layouts/qquicklinearlayout_p.h
new file mode 100644
index 000000000..0a8db1cdc
--- /dev/null
+++ b/src/layouts/qquicklinearlayout_p.h
@@ -0,0 +1,199 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Quick Layouts module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights. These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QQUICKLINEARLAYOUT_P_H
+#define QQUICKLINEARLAYOUT_P_H
+
+#include "qquicklayout_p.h"
+#include "qquickgridlayoutengine_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/**********************************
+ **
+ ** QQuickGridLayoutBase
+ **
+ **/
+class QQuickGridLayoutBasePrivate;
+
+class QQuickGridLayoutBase : public QQuickLayout
+{
+ Q_OBJECT
+public:
+ explicit QQuickGridLayoutBase(QQuickGridLayoutBasePrivate &dd,
+ Qt::Orientation orientation,
+ QQuickItem *parent = 0);
+ ~QQuickGridLayoutBase() {}
+
+ void componentComplete();
+ void invalidate(QQuickItem *childItem = 0);
+ Qt::Orientation orientation() const;
+ void setOrientation(Qt::Orientation orientation);
+
+protected:
+ void updateLayoutItems();
+ void rearrange();
+ virtual void insertLayoutItem(QQuickItem *item);
+ void removeLayoutItem(QQuickItem *item);
+ void itemChange(ItemChange change, const ItemChangeData &data);
+ void geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry);
+
+protected slots:
+ void onItemVisibleChanged();
+ void onItemDestroyed();
+ void onItemImplicitSizeChanged();
+
+private:
+ void removeGridItem(QGridLayoutItem *gridItem);
+ void propagateLayoutSizeHints();
+ Q_DECLARE_PRIVATE(QQuickGridLayoutBase)
+};
+
+
+class QQuickGridLayoutBasePrivate : public QQuickLayoutPrivate
+{
+ Q_DECLARE_PUBLIC(QQuickGridLayoutBase)
+
+public:
+ QQuickGridLayoutBasePrivate() { }
+ QQuickGridLayoutEngine engine;
+ Qt::Orientation orientation;
+};
+
+/**********************************
+ **
+ ** QQuickGridLayout
+ **
+ **/
+class QQuickGridLayoutPrivate;
+class QQuickGridLayout : public QQuickGridLayoutBase
+{
+ Q_OBJECT
+ Q_PROPERTY(qreal horizontalSpacing READ horizontalSpacing WRITE setHorizontalSpacing NOTIFY horizontalSpacingChanged)
+ Q_PROPERTY(qreal verticalSpacing READ verticalSpacing WRITE setVerticalSpacing NOTIFY verticalSpacingChanged)
+public:
+ explicit QQuickGridLayout(QQuickItem *parent = 0);
+ qreal horizontalSpacing() const;
+ void setHorizontalSpacing(qreal spacing);
+ qreal verticalSpacing() const;
+ void setVerticalSpacing(qreal spacing);
+signals:
+ void horizontalSpacingChanged();
+ void verticalSpacingChanged();
+
+private:
+ Q_DECLARE_PRIVATE(QQuickGridLayout)
+};
+
+class QQuickGridLayoutPrivate : public QQuickGridLayoutBasePrivate
+{
+ Q_DECLARE_PUBLIC(QQuickGridLayout)
+public:
+ QQuickGridLayoutPrivate() {}
+ qreal horizontalSpacing;
+ qreal verticalSpacing;
+};
+
+
+/**********************************
+ **
+ ** QQuickLinearLayout
+ **
+ **/
+class QQuickLinearLayoutPrivate;
+class QQuickLinearLayout : public QQuickGridLayoutBase
+{
+ Q_OBJECT
+ Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing NOTIFY spacingChanged)
+public:
+ explicit QQuickLinearLayout(Qt::Orientation orientation,
+ QQuickItem *parent = 0);
+ void insertLayoutItem(QQuickItem *item);
+ qreal spacing() const;
+ void setSpacing(qreal spacing);
+
+signals:
+ void spacingChanged();
+private:
+ Q_DECLARE_PRIVATE(QQuickLinearLayout)
+};
+
+class QQuickLinearLayoutPrivate : public QQuickGridLayoutBasePrivate
+{
+ Q_DECLARE_PUBLIC(QQuickLinearLayout)
+public:
+ QQuickLinearLayoutPrivate() {}
+ qreal spacing;
+};
+
+
+/**********************************
+ **
+ ** QQuickRowLayout
+ **
+ **/
+class QQuickRowLayout : public QQuickLinearLayout
+{
+ Q_OBJECT
+
+public:
+ explicit QQuickRowLayout(QQuickItem *parent = 0)
+ : QQuickLinearLayout(Qt::Horizontal, parent) {}
+};
+
+
+/**********************************
+ **
+ ** QQuickColumnLayout
+ **
+ **/
+class QQuickColumnLayout : public QQuickLinearLayout
+{
+ Q_OBJECT
+
+public:
+ explicit QQuickColumnLayout(QQuickItem *parent = 0)
+ : QQuickLinearLayout(Qt::Vertical, parent) {}
+};
+
+QT_END_NAMESPACE
+
+#endif // QQUICKLINEARLAYOUT_P_H
diff --git a/src/src.pro b/src/src.pro
index 77753b0a6..7bd5b33e4 100644
--- a/src/src.pro
+++ b/src/src.pro
@@ -1,3 +1,5 @@
TEMPLATE = subdirs
SUBDIRS += controls styles experimental private
+
+SUBDIRS += layouts
diff --git a/tests/manual/Layout.qml b/tests/manual/Layout.qml
index 9646d885b..d23aaa21b 100644
--- a/tests/manual/Layout.qml
+++ b/tests/manual/Layout.qml
@@ -40,8 +40,10 @@
import QtQuick 2.0
import QtQuick.Controls 1.0
+import QtQuick.Layouts 1.0
Item {
+ id: window
width: 600
height: 400
@@ -49,16 +51,34 @@ Item {
property real defaultHeight: 30
Column {
- anchors.fill: parent
- CheckBox {
- id: ckHideGreen
- text: "Hide green rectangles"
- checked: false
+ anchors {
+ top: parent.top
+ left: parent.left
+ right: parent.right
+ }
+ Row {
width: parent.width
+ height: 20
+ CheckBox {
+ id: ckHideGreen
+ text: "Hide green rectangles"
+ checked: false
+ height: parent.height
+ }
+ Slider {
+ id: spacingSlider
+ value: 4
+ minimumValue: 0
+ maximumValue: 100
+ width: 200
+ height: parent.height
+ }
+
}
TabView {
id:frame
width: parent.width
+ height: window.height - ckHideGreen.height
Tab {
title: "Horizontal"
@@ -78,18 +98,22 @@ Item {
height: defaultHeight
anchors.left: parent.left
anchors.right: parent.right
+ spacing: spacingSlider.value
Rectangle {
color: "red"
+ width: 50
height: parent.height
}
Rectangle {
color: "green"
+ width: 100
height: parent.height
visible: !ckHideGreen.checked
}
Rectangle {
color: "blue"
+ width: 200
height: parent.height
}
}
@@ -100,14 +124,16 @@ Item {
anchors.left: parent.left
anchors.right: parent.right
- spacing: 5
+ spacing: spacingSlider.value
Rectangle {
color: "red"
+ width: 40
height: parent.height
}
Rectangle {
color: "green"
+ width: 40
height: parent.height
visible: !ckHideGreen.checked
}
@@ -116,6 +142,7 @@ Item {
}
Rectangle {
color: "blue"
+ width: 40
height: parent.height
}
}
@@ -125,6 +152,7 @@ Item {
height: defaultHeight
anchors.left: parent.left
anchors.right: parent.right
+ spacing: spacingSlider.value
Rectangle {
color: "red"
@@ -152,7 +180,8 @@ Item {
// [4]
RowLayout {
- spacing: 100
+ spacing: 100 + spacingSlider.value
+
height: defaultHeight
anchors.left: parent.left
anchors.right: parent.right
@@ -180,6 +209,7 @@ Item {
// [5]
RowLayout {
+ spacing: spacingSlider.value
height: defaultHeight
anchors.left: parent.left
anchors.right: parent.right
@@ -195,7 +225,7 @@ Item {
// [6]
RowLayout {
- spacing: 40
+ spacing: 40 + spacingSlider.value
height: defaultHeight
anchors.left: parent.left
anchors.right: parent.right
@@ -225,6 +255,7 @@ Item {
Rectangle {
color: "green"
height: parent.height
+ width: 40
visible: !ckHideGreen.checked
Layout.maximumWidth: 300
Layout.horizontalSizePolicy: Layout.Expanding
@@ -250,6 +281,7 @@ Item {
anchors {
top: parent.top
+
left: parent.left
bottom: parent.bottom
margins: 10
@@ -260,19 +292,23 @@ Item {
width: defaultWidth
anchors.top: parent.top
anchors.bottom: parent.bottom
+ spacing: spacingSlider.value
Rectangle {
color: "red"
width: parent.width
+ height: 40
}
Rectangle {
color: "green"
width: parent.width
+ height: 80
visible: !ckHideGreen.checked
}
Rectangle {
color: "blue"
width: parent.width
+ height: 120
}
}
@@ -282,23 +318,26 @@ Item {
anchors.top: parent.top
anchors.bottom: parent.bottom
- spacing: 5
+ spacing: spacingSlider.value
Rectangle {
color: "red"
width: parent.width
+ height: 40
}
Rectangle {
color: "green"
width: parent.width
visible: !ckHideGreen.checked
+ height: 80
}
Item {
- implicitWidth: 10
+ implicitHeight: 10
}
Rectangle {
color: "blue"
width: parent.width
+ height: 40
}
}
@@ -307,10 +346,12 @@ Item {
width: defaultWidth
anchors.top: parent.top
anchors.bottom: parent.bottom
+ spacing: spacingSlider.value
Rectangle {
color: "red"
width: parent.width
+ height: 60
Layout.minimumHeight: 50
Layout.maximumHeight: 100
Layout.verticalSizePolicy: Layout.Expanding
@@ -318,23 +359,24 @@ Item {
Rectangle {
color: "green"
width: parent.width
+ height: 90
visible: !ckHideGreen.checked
- Layout.minimumHeight: 100
- Layout.maximumHeight: 200
+ Layout.minimumHeight: 75
+ Layout.maximumHeight: 125
Layout.verticalSizePolicy: Layout.Expanding
}
Rectangle {
color: "blue"
width: parent.width
- Layout.minimumHeight: 200
- Layout.maximumHeight: 400
+ height: 120
+ Layout.minimumHeight: 100
Layout.verticalSizePolicy: Layout.Expanding
}
}
// [4]
ColumnLayout {
- spacing: 100
+ spacing: 100 + spacingSlider.value
width: defaultWidth
anchors.top: parent.top
anchors.bottom: parent.bottom
@@ -362,22 +404,7 @@ Item {
// [5]
ColumnLayout {
- width: defaultWidth
- anchors.top: parent.top
- anchors.bottom: parent.bottom
-
- Rectangle {
- color: "red"
- width: parent.width
- Layout.minimumHeight: 200
- Layout.maximumHeight: 500
- Layout.verticalSizePolicy: Layout.Expanding
- }
- }
-
- // [6]
- ColumnLayout {
- spacing: 40
+ spacing: 40 + spacingSlider.value
width: defaultWidth
anchors.top: parent.top
anchors.bottom: parent.bottom
@@ -385,28 +412,33 @@ Item {
ColumnLayout {
spacing: 10
width: parent.width
+ Layout.verticalSizePolicy: Layout.Expanding
Rectangle {
color: "red"
width: parent.width
Layout.minimumHeight: 100
+ Layout.maximumHeight: 300
Layout.verticalSizePolicy: Layout.Expanding
}
Rectangle {
color: "blue"
width: parent.width
- Layout.minimumHeight: 200
+ Layout.minimumHeight: 100
Layout.verticalSizePolicy: Layout.Expanding
+ Layout.maximumHeight: 200
}
}
ColumnLayout {
spacing: 10
width: parent.width
-
+ Layout.maximumHeight: 200
+ Layout.verticalSizePolicy: Layout.Expanding
Rectangle {
color: "green"
width: parent.width
+ height: 50
visible: !ckHideGreen.checked
Layout.maximumHeight: 300
Layout.verticalSizePolicy: Layout.Expanding
@@ -414,8 +446,8 @@ Item {
Rectangle {
color: "red"
width: parent.width
+ height: 50
Layout.minimumHeight: 40
- Layout.maximumHeight: 100
Layout.verticalSizePolicy: Layout.Expanding
}
}
@@ -423,7 +455,6 @@ Item {
}
}
-
Tab {
title: "Horizontal and Vertical"
@@ -511,6 +542,185 @@ Item {
}
}
}
+
+ Tab {
+ title: "Grid"
+ Column {
+ spacing: 4
+
+ anchors {
+ top: parent.top
+ left: parent.left
+ right: parent.right
+ bottom: parent.bottom
+ margins: 10
+ }
+
+ // [1]
+ GridLayout {
+ id: flag
+ verticalSpacing: spacingSlider.value
+ horizontalSpacing: spacingSlider.value
+ // row 0
+ anchors.left: parent.left
+ anchors.right: parent.right
+ Rectangle {
+ color: "red"
+ width: 52
+ height: 52
+ Layout.row: 0
+ Layout.column: 0
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+ Rectangle {
+ color: "white"
+ width: 8
+ height: 52
+ Layout.row: 0
+ Layout.column: 1
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+ Rectangle {
+ color: "blue"
+ width: 18
+ height: 60
+ Layout.row: 0
+ Layout.column: 2
+ Layout.rowSpan: 2
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+ Rectangle {
+ color: "white"
+ width: 8
+ height: 52
+ Layout.row: 0
+ Layout.column: 3
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+ Rectangle {
+ color: "red"
+ width: 140
+ height: 52
+ Layout.row: 0
+ Layout.column: 4
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+
+ // row 1
+ Rectangle {
+ color: "white"
+ width: 60
+ height: 8
+ Layout.row: 1
+ Layout.column: 0
+ Layout.columnSpan: 2
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+ Rectangle {
+ color: "white"
+ width: 60
+ height: 8
+ Layout.row: 1
+ Layout.column: 3
+ Layout.columnSpan: 2
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+
+ // row 2
+ Rectangle {
+ color: "blue"
+ width: 226
+ height: 18
+ Layout.row: 2
+ Layout.column: 0
+ Layout.columnSpan: 5
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+
+ // row 3
+ Rectangle {
+ color: "white"
+ width: 60
+ height: 8
+ Layout.row: 3
+ Layout.column: 0
+ Layout.columnSpan: 2
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+ Rectangle {
+ color: "blue"
+ width: 18
+ height: 60
+ Layout.row: 3
+ Layout.column: 2
+ Layout.rowSpan: 2
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+ Rectangle {
+ color: "white"
+ width: 140
+ height: 8
+ Layout.row: 3
+ Layout.column: 3
+ Layout.columnSpan: 2
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+
+ // row 4
+ Rectangle {
+ color: "red"
+ width: 52
+ height: 52
+ Layout.row: 4
+ Layout.column: 0
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+ Rectangle {
+ color: "white"
+ width: 8
+ height: 52
+ Layout.row: 4
+ Layout.column: 1
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+ Rectangle {
+ color: "white"
+ width: 8
+ height: 52
+ Layout.row: 4
+ Layout.column: 3
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+ Rectangle {
+ color: "red"
+ width: 140
+ height: 52
+ Layout.row: 4
+ Layout.column: 4
+ Layout.horizontalSizePolicy: Layout.Expanding
+ Layout.verticalSizePolicy: Layout.Expanding
+ }
+ }
+
+ Text {
+ text: "Norwegian flag"
+ }
+ }
+ }
}
}
}
diff --git a/tests/manual/scrollbars.qml b/tests/manual/scrollbars.qml
index 231ead7fc..bcfa89751 100644
--- a/tests/manual/scrollbars.qml
+++ b/tests/manual/scrollbars.qml
@@ -40,6 +40,7 @@
import QtQuick 2.0
import QtQuick.Controls 1.0
+import QtQuick.Layouts 1.0
ApplicationWindow {
title: "Component Gallery"
diff --git a/tests/manual/testbench/content/PropertyLayouts.qml b/tests/manual/testbench/content/PropertyLayouts.qml
index 2f0d85f08..88d64acf4 100644
--- a/tests/manual/testbench/content/PropertyLayouts.qml
+++ b/tests/manual/testbench/content/PropertyLayouts.qml
@@ -40,6 +40,7 @@
import QtQuick 2.0
import QtQuick.Controls 1.0
+import QtQuick.Layouts 1.0
QtObject {
property Component boolLayout: CheckBox {
diff --git a/tests/manual/testbench/main.qml b/tests/manual/testbench/main.qml
index 019f5c403..a5f5f6937 100644
--- a/tests/manual/testbench/main.qml
+++ b/tests/manual/testbench/main.qml
@@ -40,6 +40,7 @@
import QtQuick 2.0
import QtQuick.Controls 1.0
+import QtQuick.Layouts 1.0
import "content"
ApplicationWindow {
--
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