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Diffstat (limited to 'src/gui/graphicsview/qgraphicswidget_p.h')
| -rw-r--r-- | src/gui/graphicsview/qgraphicswidget_p.h | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/src/gui/graphicsview/qgraphicswidget_p.h b/src/gui/graphicsview/qgraphicswidget_p.h new file mode 100644 index 0000000..afa6812 --- /dev/null +++ b/src/gui/graphicsview/qgraphicswidget_p.h @@ -0,0 +1,232 @@ +/**************************************************************************** +** +** 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), + 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; + + // 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 + |