source: trunk/src/gui/widgets/qmdisubwindow_p.h@ 784

Last change on this file since 784 was 651, checked in by Dmitry A. Kuminov, 16 years ago

trunk: Merged in qt 4.6.2 sources.
File size: 9.9 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the QtGui module of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
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38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#ifndef QMDISUBWINDOW_P_H
43#define QMDISUBWINDOW_P_H
44
45//
46// W A R N I N G
47// -------------
48//
49// This file is not part of the Qt API. It exists purely as an
50// implementation detail. This header file may change from version to
51// version without notice, or even be removed.
52//
53// We mean it.
54//
55
56#include "qmdisubwindow.h"
57
58#ifndef QT_NO_MDIAREA
59
60#include <QStyle>
61#include <QStyleOptionTitleBar>
62#include <QMenuBar>
63#include <QSizeGrip>
64#include <QPointer>
65#include <QDebug>
66#include <private/qwidget_p.h>
67
68QT_BEGIN_NAMESPACE
69
70class QVBoxLayout;
71class QMouseEvent;
72
73namespace QMdi {
74template<typename T>
75class ControlElement : public T
76{
77public:
78 ControlElement(QMdiSubWindow *child) : T(child, 0)
79 {
80 Q_ASSERT(child);
81 mdiChild = child;
82 }
83
84 void *qt_metacast(const char *classname)
85 {
86 if (classname && strcmp(classname, "ControlElement") == 0)
87 return this;
88 return 0;
89 }
90
91 QPointer<QMdiSubWindow> mdiChild;
92};
93
94class ControlContainer : public QObject
95{
96public:
97 ControlContainer(QMdiSubWindow *mdiChild);
98 ~ControlContainer();
99
100#ifndef QT_NO_MENUBAR
101 void showButtonsInMenuBar(QMenuBar *menuBar);
102 void removeButtonsFromMenuBar(QMenuBar *menuBar = 0);
103 QMenuBar *menuBar() const { return m_menuBar; }
104#endif
105 void updateWindowIcon(const QIcon &windowIcon);
106 QWidget *controllerWidget() const { return m_controllerWidget; }
107 QWidget *systemMenuLabel() const { return m_menuLabel; }
108
109private:
110 QPointer<QWidget> previousLeft;
111 QPointer<QWidget> previousRight;
112#ifndef QT_NO_MENUBAR
113 QPointer<QMenuBar> m_menuBar;
114#endif
115 QPointer<QWidget> m_controllerWidget;
116 QPointer<QWidget> m_menuLabel;
117 QPointer<QMdiSubWindow> mdiChild;
118};
119} // namespace QMdi
120
121class QMdiSubWindowPrivate : public QWidgetPrivate
122{
123 Q_DECLARE_PUBLIC(QMdiSubWindow)
124public:
125 // Enums and typedefs.
126 enum Operation {
127 None,
128 Move,
129 TopResize,
130 BottomResize,
131 LeftResize,
132 RightResize,
133 TopLeftResize,
134 TopRightResize,
135 BottomLeftResize,
136 BottomRightResize
137 };
138
139 enum ChangeFlag {
140 HMove = 0x01,
141 VMove = 0x02,
142 HResize = 0x04,
143 VResize = 0x08,
144 HResizeReverse = 0x10,
145 VResizeReverse = 0x20
146 };
147
148 enum WindowStateAction {
149 RestoreAction,
150 MoveAction,
151 ResizeAction,
152 MinimizeAction,
153 MaximizeAction,
154 StayOnTopAction,
155 CloseAction,
156 /* Add new states _above_ this line! */
157 NumWindowStateActions
158 };
159
160 struct OperationInfo {
161 uint changeFlags;
162 Qt::CursorShape cursorShape;
163 QRegion region;
164 bool hover;
165 OperationInfo(uint changeFlags, Qt::CursorShape cursorShape, bool hover = true)
166 : changeFlags(changeFlags),
167 cursorShape(cursorShape),
168 hover(hover)
169 {}
170 };
171
172 typedef QMap<Operation, OperationInfo> OperationInfoMap;
173
174 QMdiSubWindowPrivate();
175
176 // Variables.
177 QPointer<QWidget> baseWidget;
178 QPointer<QWidget> restoreFocusWidget;
179 QPointer<QMdi::ControlContainer> controlContainer;
180#ifndef QT_NO_SIZEGRIP
181 QPointer<QSizeGrip> sizeGrip;
182#endif
183#ifndef QT_NO_RUBBERBAND
184 QRubberBand *rubberBand;
185#endif
186 QPoint mousePressPosition;
187 QRect oldGeometry;
188 QSize internalMinimumSize;
189 QSize userMinimumSize;
190 QSize restoreSize;
191 bool resizeEnabled;
192 bool moveEnabled;
193 bool isInInteractiveMode;
194#ifndef QT_NO_RUBBERBAND
195 bool isInRubberBandMode;
196#endif
197 bool isShadeMode;
198 bool ignoreWindowTitleChange;
199 bool ignoreNextActivationEvent;
200 bool activationEnabled;
201 bool isShadeRequestFromMinimizeMode;
202 bool isMaximizeMode;
203 bool isWidgetHiddenByUs;
204 bool isActive;
205 bool isExplicitlyDeactivated;
206 int keyboardSingleStep;
207 int keyboardPageStep;
208 int resizeTimerId;
209 Operation currentOperation;
210 QStyle::SubControl hoveredSubControl;
211 QStyle::SubControl activeSubControl;
212 Qt::FocusReason focusInReason;
213 OperationInfoMap operationMap;
214 QPointer<QMenu> systemMenu;
215#ifndef QT_NO_ACTIONS
216 QPointer<QAction> actions[NumWindowStateActions];
217#endif
218 QMdiSubWindow::SubWindowOptions options;
219 QString lastChildWindowTitle;
220 QPalette titleBarPalette;
221 QString windowTitle;
222 QFont font;
223 QIcon menuIcon;
224 QStyleOptionTitleBar cachedStyleOptions;
225 QString originalTitle;
226
227 // Slots.
228 void _q_updateStaysOnTopHint();
229 void _q_enterInteractiveMode();
230 void _q_processFocusChanged(QWidget *old, QWidget *now);
231
232 // Functions.
233 void leaveInteractiveMode();
234 void removeBaseWidget();
235 void initOperationMap();
236#ifndef QT_NO_MENU
237 void createSystemMenu();
238#endif
239 void updateCursor();
240 void updateDirtyRegions();
241 void updateGeometryConstraints();
242 void updateMask();
243 void setNewGeometry(const QPoint &pos);
244 void setMinimizeMode();
245 void setNormalMode();
246 void setMaximizeMode();
247 void setActive(bool activate, bool changeFocus = true);
248 void processClickedSubControl();
249 QRegion getRegion(Operation operation) const;
250 Operation getOperation(const QPoint &pos) const;
251 QStyleOptionTitleBar titleBarOptions() const;
252 void ensureWindowState(Qt::WindowState state);
253 int titleBarHeight(const QStyleOptionTitleBar &options) const;
254 void sizeParameters(int *margin, int *minWidth) const;
255 bool drawTitleBarWhenMaximized() const;
256#ifndef QT_NO_MENUBAR
257 QMenuBar *menuBar() const;
258 void showButtonsInMenuBar(QMenuBar *menuBar);
259 void removeButtonsFromMenuBar();
260#endif
261 void updateWindowTitle(bool requestFromChild);
262#ifndef QT_NO_RUBBERBAND
263 void enterRubberBandMode();
264 void leaveRubberBandMode();
265#endif
266 QPalette desktopPalette() const;
267 void updateActions();
268 void setFocusWidget();
269 void restoreFocus();
270 void setWindowFlags(Qt::WindowFlags windowFlags);
271 void setVisible(WindowStateAction, bool visible = true);
272#ifndef QT_NO_ACTION
273 void setEnabled(WindowStateAction, bool enable = true);
274#ifndef QT_NO_MENU
275 void addToSystemMenu(WindowStateAction, const QString &text, const char *slot);
276#endif
277#endif // QT_NO_ACTION
278 QSize iconSize() const;
279#ifndef QT_NO_SIZEGRIP
280 void setSizeGrip(QSizeGrip *sizeGrip);
281 void setSizeGripVisible(bool visible = true) const;
282#endif
283 void updateInternalWindowTitle();
284 QString originalWindowTitle();
285 void setNewWindowTitle();
286
287 inline int titleBarHeight() const
288 {
289 Q_Q(const QMdiSubWindow);
290 if (!parent || q->windowFlags() & Qt::FramelessWindowHint
291 || (q->isMaximized() && !drawTitleBarWhenMaximized())) {
292 return 0;
293 }
294 QStyleOptionTitleBar options = titleBarOptions();
295 int height = options.rect.height();
296 if (hasBorder(options))
297 height += q->isMinimized() ? 8 : 4;
298 return height;
299 }
300
301 inline QStyle::SubControl getSubControl(const QPoint &pos) const
302 {
303 Q_Q(const QMdiSubWindow);
304 QStyleOptionTitleBar titleBarOptions = this->titleBarOptions();
305 return q->style()->hitTestComplexControl(QStyle::CC_TitleBar, &titleBarOptions, pos, q);
306 }
307
308 inline void setNewGeometry(QRect *geometry)
309 {
310 Q_Q(QMdiSubWindow);
311 Q_ASSERT(parent);
312 geometry->setSize(geometry->size().expandedTo(internalMinimumSize));
313#ifndef QT_NO_RUBBERBAND
314 if (isInRubberBandMode)
315 rubberBand->setGeometry(*geometry);
316 else
317#endif
318 q->setGeometry(*geometry);
319 }
320
321 inline bool hasBorder(const QStyleOptionTitleBar &options) const
322 {
323 Q_Q(const QMdiSubWindow);
324 return !q->style()->styleHint(QStyle::SH_TitleBar_NoBorder, &options, q);
325 }
326
327 inline bool autoRaise() const
328 {
329 Q_Q(const QMdiSubWindow);
330 return q->style()->styleHint(QStyle::SH_TitleBar_AutoRaise, 0, q);
331 }
332
333 inline bool isResizeOperation() const
334 {
335 return currentOperation != None && currentOperation != Move;
336 }
337
338 inline bool isMoveOperation() const
339 {
340 return currentOperation == Move;
341 }
342};
343
344#endif // QT_NO_MDIAREA
345
346QT_END_NAMESPACE
347
348#endif // QMDISUBWINDOW_P_H
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