1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtWidgets module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QGRAPHICSWIDGET_P_H 41 #define QGRAPHICSWIDGET_P_H 42 43 // 44 // W A R N I N G 45 // ------------- 46 // 47 // This file is not part of the Qt API. It exists for the convenience 48 // of other Qt classes. This header file may change from version to 49 // version without notice, or even be removed. 50 // 51 // We mean it. 52 // 53 54 #include <QtWidgets/private/qtwidgetsglobal_p.h> 55 #include <private/qobject_p.h> 56 #include "qgraphicsitem_p.h" 57 #include "qgraphicswidget.h" 58 #include <QtGui/qfont.h> 59 #include <QtGui/qpalette.h> 60 #include <QtWidgets/qsizepolicy.h> 61 #include <QtWidgets/qstyle.h> 62 63 #include <memory> 64 65 QT_REQUIRE_CONFIG(graphicsview); 66 67 QT_BEGIN_NAMESPACE 68 69 class QGraphicsLayout; 70 class QStyleOptionTitleBar; 71 72 class QGraphicsWidgetPrivate : public QGraphicsItemPrivate 73 { 74 Q_DECLARE_PUBLIC(QGraphicsWidget) 75 public: 76 QGraphicsWidgetPrivate(); 77 virtual ~QGraphicsWidgetPrivate(); 78 79 void init(QGraphicsItem *parentItem, Qt::WindowFlags wFlags); 80 qreal titleBarHeight(const QStyleOptionTitleBar &options) const; 81 82 // Margins 83 mutable std::unique_ptr<QMarginsF> margins; 84 void ensureMargins() const; 85 86 void fixFocusChainBeforeReparenting(QGraphicsWidget *newParent, QGraphicsScene *oldScene, QGraphicsScene *newScene = nullptr); 87 void setLayout_helper(QGraphicsLayout *l); 88 89 // Layouts 90 QGraphicsLayout *layout; 91 void setLayoutDirection_helper(Qt::LayoutDirection direction); 92 void resolveLayoutDirection(); 93 94 // Style 95 QPalette palette; 96 uint inheritedPaletteResolveMask; 97 void setPalette_helper(const QPalette &palette); 98 void resolvePalette(uint inheritedMask) override; 99 void updatePalette(const QPalette &palette); 100 QPalette naturalWidgetPalette() const; 101 QFont font; 102 uint inheritedFontResolveMask; 103 void setFont_helper(const QFont &font); 104 void resolveFont(uint inheritedMask) override; 105 void updateFont(const QFont &font); 106 QFont naturalWidgetFont() const; 107 108 // Window specific 109 void initStyleOptionTitleBar(QStyleOptionTitleBar *option); 110 void adjustWindowFlags(Qt::WindowFlags *wFlags); 111 void windowFrameMouseReleaseEvent(QGraphicsSceneMouseEvent *event); 112 void windowFrameMousePressEvent(QGraphicsSceneMouseEvent *event); 113 void windowFrameMouseMoveEvent(QGraphicsSceneMouseEvent *event); 114 void windowFrameHoverMoveEvent(QGraphicsSceneHoverEvent *event); 115 void windowFrameHoverLeaveEvent(QGraphicsSceneHoverEvent *event); 116 bool hasDecoration() const; 117 118 // Private Properties 119 qreal width() const override; 120 void setWidth(qreal) override; 121 void resetWidth() override; 122 123 qreal height() const override; 124 void setHeight(qreal) override; 125 void resetHeight() override; 126 void setGeometryFromSetPos(); 127 128 // State attributeToBitIndex(Qt::WidgetAttribute att)129 inline int attributeToBitIndex(Qt::WidgetAttribute att) const 130 { 131 int bit = -1; 132 switch (att) { 133 case Qt::WA_SetLayoutDirection: bit = 0; break; 134 case Qt::WA_RightToLeft: bit = 1; break; 135 case Qt::WA_SetStyle: bit = 2; break; 136 case Qt::WA_Resized: bit = 3; break; 137 case Qt::WA_DeleteOnClose: bit = 4; break; 138 case Qt::WA_NoSystemBackground: bit = 5; break; 139 case Qt::WA_OpaquePaintEvent: bit = 6; break; 140 case Qt::WA_SetPalette: bit = 7; break; 141 case Qt::WA_SetFont: bit = 8; break; 142 case Qt::WA_WindowPropagation: bit = 9; break; 143 default: break; 144 } 145 return bit; 146 } setAttribute(Qt::WidgetAttribute att,bool value)147 inline void setAttribute(Qt::WidgetAttribute att, bool value) 148 { 149 int bit = attributeToBitIndex(att); 150 if (bit == -1) { 151 qWarning("QGraphicsWidget::setAttribute: unsupported attribute %d", int(att)); 152 return; 153 } 154 if (value) 155 attributes |= (1 << bit); 156 else 157 attributes &= ~(1 << bit); 158 } testAttribute(Qt::WidgetAttribute att)159 inline bool testAttribute(Qt::WidgetAttribute att) const 160 { 161 int bit = attributeToBitIndex(att); 162 if (bit == -1) 163 return false; 164 return (attributes & (1 << bit)) != 0; 165 } 166 quint32 attributes : 10; 167 quint32 inSetGeometry : 1; 168 quint32 polished: 1; 169 quint32 inSetPos : 1; 170 quint32 autoFillBackground : 1; 171 172 // Focus 173 Qt::FocusPolicy focusPolicy; 174 QGraphicsWidget *focusNext; 175 QGraphicsWidget *focusPrev; 176 177 // Windows 178 Qt::WindowFlags windowFlags; 179 struct WindowData { 180 QString windowTitle; 181 QStyle::SubControl hoveredSubControl; 182 Qt::WindowFrameSection grabbedSection; 183 uint buttonMouseOver : 1; 184 uint buttonSunken : 1; 185 QRectF startGeometry; 186 QRect buttonRect; WindowDataWindowData187 WindowData() 188 : hoveredSubControl(QStyle::SC_None) 189 , grabbedSection(Qt::NoSection) 190 , buttonMouseOver(false) 191 , buttonSunken(false) 192 {} 193 }; 194 std::unique_ptr<WindowData> windowData; 195 void ensureWindowData(); 196 197 bool setWindowFrameMargins; 198 mutable std::unique_ptr<QMarginsF> windowFrameMargins; 199 void ensureWindowFrameMargins() const; 200 201 #ifndef QT_NO_ACTION 202 QList<QAction *> actions; 203 #endif 204 }; 205 206 QT_END_NAMESPACE 207 208 #endif //QGRAPHICSWIDGET_P_H 209 210