| Current File : //usr/include/qt5/QtWidgets/5.9.7/QtWidgets/private/qgraphicswidget_p.h |
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtWidgets 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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 other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtWidgets/private/qtwidgetsglobal_p.h>
#include <private/qobject_p.h>
#include "qgraphicsitem_p.h"
#include "qgraphicswidget.h"
#include <QtGui/qfont.h>
#include <QtGui/qpalette.h>
#include <QtWidgets/qsizepolicy.h>
#include <QtWidgets/qstyle.h>
QT_REQUIRE_CONFIG(graphicsview);
QT_BEGIN_NAMESPACE
class QGraphicsLayout;
class QStyleOptionTitleBar;
class QGraphicsWidgetPrivate : public QGraphicsItemPrivate
{
Q_DECLARE_PUBLIC(QGraphicsWidget)
public:
QGraphicsWidgetPrivate();
virtual ~QGraphicsWidgetPrivate();
void init(QGraphicsItem *parentItem, Qt::WindowFlags wFlags);
qreal titleBarHeight(const QStyleOptionTitleBar &options) const;
// Margins
enum {Left, Top, Right, Bottom};
mutable qreal *margins;
void ensureMargins() const;
void fixFocusChainBeforeReparenting(QGraphicsWidget *newParent, QGraphicsScene *oldScene, QGraphicsScene *newScene = 0);
void setLayout_helper(QGraphicsLayout *l);
// 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) Q_DECL_OVERRIDE;
void updatePalette(const QPalette &palette);
QPalette naturalWidgetPalette() const;
QFont font;
uint inheritedFontResolveMask;
void setFont_helper(const QFont &font);
void resolveFont(uint inheritedMask) Q_DECL_OVERRIDE;
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;
// Private Properties
qreal width() const Q_DECL_OVERRIDE;
void setWidth(qreal) Q_DECL_OVERRIDE;
void resetWidth() Q_DECL_OVERRIDE;
qreal height() const Q_DECL_OVERRIDE;
void setHeight(qreal) Q_DECL_OVERRIDE;
void resetHeight() Q_DECL_OVERRIDE;
void setGeometryFromSetPos();
// 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;
quint32 inSetPos : 1;
quint32 autoFillBackground : 1;
// Focus
Qt::FocusPolicy focusPolicy;
QGraphicsWidget *focusNext;
QGraphicsWidget *focusPrev;
// Windows
Qt::WindowFlags windowFlags;
struct WindowData {
QString windowTitle;
QStyle::SubControl hoveredSubControl;
Qt::WindowFrameSection grabbedSection;
uint buttonMouseOver : 1;
uint buttonSunken : 1;
QRectF startGeometry;
QRect buttonRect;
WindowData()
: hoveredSubControl(QStyle::SC_None)
, grabbedSection(Qt::NoSection)
, buttonMouseOver(false)
, buttonSunken(false)
{}
} *windowData;
void ensureWindowData();
bool setWindowFrameMargins;
mutable qreal *windowFrameMargins;
void ensureWindowFrameMargins() const;
#ifndef QT_NO_ACTION
QList<QAction *> actions;
#endif
};
QT_END_NAMESPACE
#endif //QGRAPHICSWIDGET_P_H