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Iikka Eklund authored
Change copyrights and license headers from Nokia to Digia Change-Id: Ie7f5d49ed8235d7a7845ab68f99ad1c220e64d5c Reviewed-by:Lars Knoll <lars.knoll@digia.com>
46010aa7
/******************************************************************************** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).** Contact: http://www.qt-project.org/legal**** This file is part of the QtQml 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 QQUICKPOSITIONERS_P_P_H#define QQUICKPOSITIONERS_P_P_H//// W A R N I N G// -------------//// This file is not part of the Qt API. It exists purely as an// implementation detail. This header file may change from version to// version without notice, or even be removed.//// We mean it.//#include "qquickpositioners_p.h"#include "qquickimplicitsizeitem_p_p.h"#include <QtQuick/private/qquickstate_p.h>#include <private/qquicktransitionmanager_p_p.h>#include <private/qquickstatechangescript_p.h>#include <QtCore/qobject.h>#include <QtCore/qstring.h>#include <QtCore/qtimer.h>QT_BEGIN_NAMESPACEclass QQuickItemViewTransitioner;7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
class QQuickBasePositionerPrivate : public QQuickImplicitSizeItemPrivate, public QQuickItemChangeListener
{
Q_DECLARE_PUBLIC(QQuickBasePositioner)
public:
QQuickBasePositionerPrivate()
: spacing(0), type(QQuickBasePositioner::None)
, transitioner(0), positioningDirty(false)
, doingPositioning(false), anchorConflict(false), layoutDirection(Qt::LeftToRight)
{
}
void init(QQuickBasePositioner::PositionerType at)
{
type = at;
}
qreal spacing;
QQuickBasePositioner::PositionerType type;
QQuickItemViewTransitioner *transitioner;
void watchChanges(QQuickItem *other);
void unwatchChanges(QQuickItem* other);
void setPositioningDirty() {
Q_Q(QQuickBasePositioner);
if (!positioningDirty) {
positioningDirty = true;
q->polish();
}
}
bool positioningDirty : 1;
bool doingPositioning : 1;
bool anchorConflict : 1;
Qt::LayoutDirection layoutDirection;
void mirrorChange() {
Q_Q(QQuickBasePositioner);
if (type != QQuickBasePositioner::Vertical)
q->prePositioning(); //Don't postpone, as it might be the only trigger for visible changes.
}
bool isLeftToRight() const {
if (type == QQuickBasePositioner::Vertical)
return true;
else
return effectiveLayoutMirror ? layoutDirection == Qt::RightToLeft : layoutDirection == Qt::LeftToRight;
}
virtual void itemSiblingOrderChanged(QQuickItem* other)
{
Q_UNUSED(other);
setPositioningDirty();
}
void itemGeometryChanged(QQuickItem *, const QRectF &newGeometry, const QRectF &oldGeometry)
{
if (newGeometry.size() != oldGeometry.size())
setPositioningDirty();
}
virtual void itemVisibilityChanged(QQuickItem *)
{
setPositioningDirty();
}
void itemDestroyed(QQuickItem *item)
{
Q_Q(QQuickBasePositioner);
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int index = q->positionedItems.find(QQuickBasePositioner::PositionedItem(item));
if (index >= 0)
q->removePositionedItem(&q->positionedItems, index);
}
static Qt::LayoutDirection getLayoutDirection(const QQuickBasePositioner *positioner)
{
return positioner->d_func()->layoutDirection;
}
static Qt::LayoutDirection getEffectiveLayoutDirection(const QQuickBasePositioner *positioner)
{
if (positioner->d_func()->effectiveLayoutMirror)
return positioner->d_func()->layoutDirection == Qt::RightToLeft ? Qt::LeftToRight : Qt::RightToLeft;
else
return positioner->d_func()->layoutDirection;
}
};
QT_END_NAMESPACE
#endif // QQUICKPOSITIONERS_P_P_H