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qquickwindow.cpp 136.15 KiB
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/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtQuick module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.  For licensing terms and
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** conditions see http://qt.digia.com/licensing.  For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights.  These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qquickwindow.h"
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#include "qquickwindow_p.h"
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#include "qquickwindowattached_p.h"
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#include "qquickitem.h"
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#include "qquickitem_p.h"
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#include "qquickevents_p_p.h"
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#include <private/qquickdrag_p.h>
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#include <QtQuick/private/qsgrenderer_p.h>
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#include <QtQuick/private/qsgtexture_p.h>
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#include <private/qsgrenderloop_p.h>
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#include <private/qquickrendercontrol_p.h>
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#include <private/qquickanimatorcontroller_p.h>
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#include <private/qguiapplication_p.h>
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#include <QtGui/QInputMethod>
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#include <private/qabstractanimation_p.h>
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#include <QtGui/qpainter.h>
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#include <QtGui/qevent.h>
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#include <QtGui/qmatrix4x4.h>
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#include <QtGui/qstylehints.h>
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#include <QtCore/qvarlengtharray.h>
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#include <QtCore/qabstractanimation.h>
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#include <QtCore/QLibraryInfo>
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#include <QtCore/QRunnable>
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#include <QtQml/qqmlincubator.h> #include <QtQuick/private/qquickpixmapcache_p.h> #include <private/qqmlprofilerservice_p.h> #include <private/qqmlmemoryprofiler_p.h> #include <private/qopenglvertexarrayobject_p.h> QT_BEGIN_NAMESPACE Q_LOGGING_CATEGORY(DBG_TOUCH, "qt.quick.touch"); Q_LOGGING_CATEGORY(DBG_MOUSE, "qt.quick.mouse"); Q_LOGGING_CATEGORY(DBG_FOCUS, "qt.quick.focus"); Q_LOGGING_CATEGORY(DBG_DIRTY, "qt.quick.dirty"); extern Q_GUI_EXPORT QImage qt_gl_read_framebuffer(const QSize &size, bool alpha_format, bool include_alpha); bool QQuickWindowPrivate::defaultAlphaBuffer = false; void QQuickWindowPrivate::updateFocusItemTransform() { Q_Q(QQuickWindow); #ifndef QT_NO_IM QQuickItem *focus = q->activeFocusItem(); if (focus && qApp->focusObject() == focus) { QQuickItemPrivate *focusPrivate = QQuickItemPrivate::get(focus); qApp->inputMethod()->setInputItemTransform(focusPrivate->itemToWindowTransform()); qApp->inputMethod()->setInputItemRectangle(QRectF(0, 0, focusPrivate->width, focusPrivate->height)); } #endif } class QQuickWindowIncubationController : public QObject, public QQmlIncubationController { Q_OBJECT public: QQuickWindowIncubationController(QSGRenderLoop *loop) : m_renderLoop(loop), m_timer(0) { // Allow incubation for 1/3 of a frame. m_incubation_time = qMax(1, int(1000 / QGuiApplication::primaryScreen()->refreshRate()) / 3); QAnimationDriver *animationDriver = m_renderLoop->animationDriver(); if (animationDriver) { connect(animationDriver, SIGNAL(stopped()), this, SLOT(animationStopped())); connect(m_renderLoop, SIGNAL(timeToIncubate()), this, SLOT(incubate())); } } protected: void timerEvent(QTimerEvent *) { killTimer(m_timer); m_timer = 0; incubate(); } void incubateAgain() { if (m_timer == 0) { // Wait for a while before processing the next batch. Using a // timer to avoid starvation of system events. m_timer = startTimer(m_incubation_time); } } public slots: void incubate() { if (incubatingObjectCount()) {