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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGRAPHICSWIDGET_P_H
#define QGRAPHICSWIDGET_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp. This header
// file may change from version to version without notice, or even be removed.
//
// We mean it.
//
#include <private/qobject_p.h>
#include "qgraphicsitem_p.h"
#include "qgraphicswidget.h"
#include <QtGui/qfont.h>
#include <QtGui/qpalette.h>
#include <QtGui/qsizepolicy.h>
#include <QtGui/qstyle.h>
QT_BEGIN_NAMESPACE
class QGraphicsLayout;
class QStyleOptionTitleBar;
#if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW
class Q_GUI_EXPORT QGraphicsWidgetPrivate : public QGraphicsItemPrivate
{
Q_DECLARE_PUBLIC(QGraphicsWidget)
public:
QGraphicsWidgetPrivate()
: leftMargin(0),
topMargin(0),
rightMargin(0),
bottomMargin(0),
leftLayoutItemMargin(0),
topLayoutItemMargin(0),
rightLayoutItemMargin(0),
bottomLayoutItemMargin(0),
layout(0),
inheritedPaletteResolveMask(0),
inheritedFontResolveMask(0),
inSetGeometry(0),
polished(0),
focusPolicy(Qt::NoFocus),
focusNext(0),
focusPrev(0),
focusChild(0),
windowFlags(0),
hoveredSubControl(QStyle::SC_None),
grabbedSection(Qt::NoSection),
buttonMouseOver(false),
buttonSunken(false),
setWindowFrameMargins(false),
leftWindowFrameMargin(0),
topWindowFrameMargin(0),
rightWindowFrameMargin(0),
bottomWindowFrameMargin(0)
{ }
void init(QGraphicsItem *parentItem, Qt::WindowFlags wFlags);
qreal titleBarHeight(const QStyleOptionTitleBar &options) const;
// Margins
qreal leftMargin;
qreal topMargin;
qreal rightMargin;
qreal bottomMargin;
QRectF contentsRect;
// Layout item margins
void getLayoutItemMargins(qreal *left, qreal *top, qreal *right, qreal *bottom) const;
void setLayoutItemMargins(qreal left, qreal top, qreal right, qreal bottom);
void setLayoutItemMargins(QStyle::SubElement element, const QStyleOption *opt = 0);
void fixFocusChainBeforeReparenting(QGraphicsWidget *newParent, QGraphicsScene *newScene = 0);
void setLayout_helper(QGraphicsLayout *l);
qreal leftLayoutItemMargin;
qreal topLayoutItemMargin;
qreal rightLayoutItemMargin;
qreal bottomLayoutItemMargin;
// Layouts
QGraphicsLayout *layout;
void setLayoutDirection_helper(Qt::LayoutDirection direction);
void resolveLayoutDirection();
// Style
QPalette palette;
uint inheritedPaletteResolveMask;
void setPalette_helper(const QPalette &palette);
void resolvePalette(uint inheritedMask);
void updatePalette(const QPalette &palette);
QPalette naturalWidgetPalette() const;
QFont font;
uint inheritedFontResolveMask;
void setFont_helper(const QFont &font);
void resolveFont(uint inheritedMask);
void updateFont(const QFont &font);
QFont naturalWidgetFont() const;
// Window specific
void initStyleOptionTitleBar(QStyleOptionTitleBar *option);
void adjustWindowFlags(Qt::WindowFlags *wFlags);
void windowFrameMouseReleaseEvent(QGraphicsSceneMouseEvent *event);
void windowFrameMousePressEvent(QGraphicsSceneMouseEvent *event);
void windowFrameMouseMoveEvent(QGraphicsSceneMouseEvent *event);
void windowFrameHoverMoveEvent(QGraphicsSceneHoverEvent *event);
void windowFrameHoverLeaveEvent(QGraphicsSceneHoverEvent *event);
bool hasDecoration() const;
// State
inline int attributeToBitIndex(Qt::WidgetAttribute att) const
{
int bit = -1;
switch (att) {
case Qt::WA_SetLayoutDirection: bit = 0; break;
case Qt::WA_RightToLeft: bit = 1; break;
case Qt::WA_SetStyle: bit = 2; break;
case Qt::WA_Resized: bit = 3; break;
case Qt::WA_DeleteOnClose: bit = 4; break;
case Qt::WA_NoSystemBackground: bit = 5; break;
case Qt::WA_OpaquePaintEvent: bit = 6; break;
case Qt::WA_SetPalette: bit = 7; break;
case Qt::WA_SetFont: bit = 8; break;
case Qt::WA_WindowPropagation: bit = 9; break;
default: break;
}
return bit;
}
inline void setAttribute(Qt::WidgetAttribute att, bool value)
{
int bit = attributeToBitIndex(att);
if (bit == -1) {
qWarning("QGraphicsWidget::setAttribute: unsupported attribute %d", int(att));
return;
}
if (value)
attributes |= (1 << bit);
else
attributes &= ~(1 << bit);
}
inline bool testAttribute(Qt::WidgetAttribute att) const
{
int bit = attributeToBitIndex(att);
if (bit == -1)
return false;
return (attributes & (1 << bit)) != 0;
}
quint32 attributes : 10;
quint32 inSetGeometry : 1;
quint32 polished: 1;
// Focus
Qt::FocusPolicy focusPolicy;
QGraphicsWidget *focusNext;
QGraphicsWidget *focusPrev;
QGraphicsWidget *focusChild;
void setFocusWidget();
void clearFocusWidget();
// Windows
Qt::WindowFlags windowFlags;
QString windowTitle;
QStyle::SubControl hoveredSubControl;
Qt::WindowFrameSection grabbedSection;
uint buttonMouseOver : 1;
uint buttonSunken : 1;
QPointF mouseDelta; // to compensate for small error when interactively resizing
QRectF startGeometry;
QRect buttonRect;
bool setWindowFrameMargins;
qreal leftWindowFrameMargin;
qreal topWindowFrameMargin;
qreal rightWindowFrameMargin;
qreal bottomWindowFrameMargin;
#ifndef QT_NO_ACTION
QList<QAction *> actions;
#endif
};
#endif //!defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW
QT_END_NAMESPACE
#endif //QGRAPHICSWIDGET_P_H
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