source: trunk/demos/mainwindow/mainwindow.cpp@ 1037

Last change on this file since 1037 was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.
File size: 16.5 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2011 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 demonstration applications 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
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include "mainwindow.h"
43#include "colorswatch.h"
44#include "toolbar.h"
45
46#include <QAction>
47#include <QLayout>
48#include <QMenu>
49#include <QMenuBar>
50#include <QStatusBar>
51#include <QTextEdit>
52#include <QFile>
53#include <QDataStream>
54#include <QFileDialog>
55#include <QMessageBox>
56#include <QSignalMapper>
57#include <QApplication>
58#include <QPainter>
59#include <QMouseEvent>
60#include <QLineEdit>
61#include <QComboBox>
62#include <QLabel>
63#include <QPushButton>
64#include <qdebug.h>
65
66static const char * const message =
67 "<p><b>Qt Main Window Demo</b></p>"
68
69 "<p>This is a demonstration of the QMainWindow, QToolBar and "
70 "QDockWidget classes.</p>"
71
72 "<p>The tool bar and dock widgets can be dragged around and rearranged "
73 "using the mouse or via the menu.</p>"
74
75 "<p>Each dock widget contains a colored frame and a context "
76 "(right-click) menu.</p>"
77
78#ifdef Q_WS_MAC
79 "<p>On Mac OS X, the \"Black\" dock widget has been created as a "
80 "<em>Drawer</em>, which is a special kind of QDockWidget.</p>"
81#endif
82 ;
83
84Q_DECLARE_METATYPE(QDockWidget::DockWidgetFeatures)
85
86MainWindow::MainWindow(const QMap<QString, QSize> &customSizeHints,
87 QWidget *parent, Qt::WindowFlags flags)
88 : QMainWindow(parent, flags)
89{
90 setObjectName("MainWindow");
91 setWindowTitle("Qt Main Window Demo");
92
93 center = new QTextEdit(this);
94 center->setReadOnly(true);
95 center->setMinimumSize(400, 205);
96 setCentralWidget(center);
97
98 setupToolBar();
99 setupMenuBar();
100 setupDockWidgets(customSizeHints);
101
102 statusBar()->showMessage(tr("Status Bar"));
103}
104
105void MainWindow::actionTriggered(QAction *action)
106{
107 qDebug("action '%s' triggered", action->text().toLocal8Bit().data());
108}
109
110void MainWindow::setupToolBar()
111{
112 for (int i = 0; i < 3; ++i) {
113 ToolBar *tb = new ToolBar(QString::fromLatin1("Tool Bar %1").arg(i + 1), this);
114 toolBars.append(tb);
115 addToolBar(tb);
116 }
117}
118
119void MainWindow::setupMenuBar()
120{
121 QMenu *menu = menuBar()->addMenu(tr("&File"));
122
123 QAction *action = menu->addAction(tr("Save layout..."));
124 connect(action, SIGNAL(triggered()), this, SLOT(saveLayout()));
125
126 action = menu->addAction(tr("Load layout..."));
127 connect(action, SIGNAL(triggered()), this, SLOT(loadLayout()));
128
129 action = menu->addAction(tr("Switch layout direction"));
130 connect(action, SIGNAL(triggered()), this, SLOT(switchLayoutDirection()));
131
132 menu->addSeparator();
133
134 menu->addAction(tr("&Quit"), this, SLOT(close()));
135
136 mainWindowMenu = menuBar()->addMenu(tr("Main window"));
137
138 action = mainWindowMenu->addAction(tr("Animated docks"));
139 action->setCheckable(true);
140 action->setChecked(dockOptions() & AnimatedDocks);
141 connect(action, SIGNAL(toggled(bool)), this, SLOT(setDockOptions()));
142
143 action = mainWindowMenu->addAction(tr("Allow nested docks"));
144 action->setCheckable(true);
145 action->setChecked(dockOptions() & AllowNestedDocks);
146 connect(action, SIGNAL(toggled(bool)), this, SLOT(setDockOptions()));
147
148 action = mainWindowMenu->addAction(tr("Allow tabbed docks"));
149 action->setCheckable(true);
150 action->setChecked(dockOptions() & AllowTabbedDocks);
151 connect(action, SIGNAL(toggled(bool)), this, SLOT(setDockOptions()));
152
153 action = mainWindowMenu->addAction(tr("Force tabbed docks"));
154 action->setCheckable(true);
155 action->setChecked(dockOptions() & ForceTabbedDocks);
156 connect(action, SIGNAL(toggled(bool)), this, SLOT(setDockOptions()));
157
158 action = mainWindowMenu->addAction(tr("Vertical tabs"));
159 action->setCheckable(true);
160 action->setChecked(dockOptions() & VerticalTabs);
161 connect(action, SIGNAL(toggled(bool)), this, SLOT(setDockOptions()));
162
163 QMenu *toolBarMenu = menuBar()->addMenu(tr("Tool bars"));
164 for (int i = 0; i < toolBars.count(); ++i)
165 toolBarMenu->addMenu(toolBars.at(i)->menu);
166
167 dockWidgetMenu = menuBar()->addMenu(tr("&Dock Widgets"));
168}
169
170void MainWindow::setDockOptions()
171{
172 DockOptions opts;
173 QList<QAction*> actions = mainWindowMenu->actions();
174
175 if (actions.at(0)->isChecked())
176 opts |= AnimatedDocks;
177 if (actions.at(1)->isChecked())
178 opts |= AllowNestedDocks;
179 if (actions.at(2)->isChecked())
180 opts |= AllowTabbedDocks;
181 if (actions.at(3)->isChecked())
182 opts |= ForceTabbedDocks;
183 if (actions.at(4)->isChecked())
184 opts |= VerticalTabs;
185
186 QMainWindow::setDockOptions(opts);
187}
188
189void MainWindow::saveLayout()
190{
191 QString fileName
192 = QFileDialog::getSaveFileName(this, tr("Save layout"));
193 if (fileName.isEmpty())
194 return;
195 QFile file(fileName);
196 if (!file.open(QFile::WriteOnly)) {
197 QString msg = tr("Failed to open %1\n%2")
198 .arg(fileName)
199 .arg(file.errorString());
200 QMessageBox::warning(this, tr("Error"), msg);
201 return;
202 }
203
204 QByteArray geo_data = saveGeometry();
205 QByteArray layout_data = saveState();
206
207 bool ok = file.putChar((uchar)geo_data.size());
208 if (ok)
209 ok = file.write(geo_data) == geo_data.size();
210 if (ok)
211 ok = file.write(layout_data) == layout_data.size();
212
213 if (!ok) {
214 QString msg = tr("Error writing to %1\n%2")
215 .arg(fileName)
216 .arg(file.errorString());
217 QMessageBox::warning(this, tr("Error"), msg);
218 return;
219 }
220}
221
222void MainWindow::loadLayout()
223{
224 QString fileName
225 = QFileDialog::getOpenFileName(this, tr("Load layout"));
226 if (fileName.isEmpty())
227 return;
228 QFile file(fileName);
229 if (!file.open(QFile::ReadOnly)) {
230 QString msg = tr("Failed to open %1\n%2")
231 .arg(fileName)
232 .arg(file.errorString());
233 QMessageBox::warning(this, tr("Error"), msg);
234 return;
235 }
236
237 uchar geo_size;
238 QByteArray geo_data;
239 QByteArray layout_data;
240
241 bool ok = file.getChar((char*)&geo_size);
242 if (ok) {
243 geo_data = file.read(geo_size);
244 ok = geo_data.size() == geo_size;
245 }
246 if (ok) {
247 layout_data = file.readAll();
248 ok = layout_data.size() > 0;
249 }
250
251 if (ok)
252 ok = restoreGeometry(geo_data);
253 if (ok)
254 ok = restoreState(layout_data);
255
256 if (!ok) {
257 QString msg = tr("Error reading %1")
258 .arg(fileName);
259 QMessageBox::warning(this, tr("Error"), msg);
260 return;
261 }
262}
263
264QAction *addAction(QMenu *menu, const QString &text, QActionGroup *group, QSignalMapper *mapper,
265 int id)
266{
267 bool first = group->actions().isEmpty();
268 QAction *result = menu->addAction(text);
269 result->setCheckable(true);
270 result->setChecked(first);
271 group->addAction(result);
272 QObject::connect(result, SIGNAL(triggered()), mapper, SLOT(map()));
273 mapper->setMapping(result, id);
274 return result;
275}
276
277void MainWindow::setupDockWidgets(const QMap<QString, QSize> &customSizeHints)
278{
279 qRegisterMetaType<QDockWidget::DockWidgetFeatures>();
280
281 mapper = new QSignalMapper(this);
282 connect(mapper, SIGNAL(mapped(int)), this, SLOT(setCorner(int)));
283
284 QMenu *corner_menu = dockWidgetMenu->addMenu(tr("Top left corner"));
285 QActionGroup *group = new QActionGroup(this);
286 group->setExclusive(true);
287 ::addAction(corner_menu, tr("Top dock area"), group, mapper, 0);
288 ::addAction(corner_menu, tr("Left dock area"), group, mapper, 1);
289
290 corner_menu = dockWidgetMenu->addMenu(tr("Top right corner"));
291 group = new QActionGroup(this);
292 group->setExclusive(true);
293 ::addAction(corner_menu, tr("Top dock area"), group, mapper, 2);
294 ::addAction(corner_menu, tr("Right dock area"), group, mapper, 3);
295
296 corner_menu = dockWidgetMenu->addMenu(tr("Bottom left corner"));
297 group = new QActionGroup(this);
298 group->setExclusive(true);
299 ::addAction(corner_menu, tr("Bottom dock area"), group, mapper, 4);
300 ::addAction(corner_menu, tr("Left dock area"), group, mapper, 5);
301
302 corner_menu = dockWidgetMenu->addMenu(tr("Bottom right corner"));
303 group = new QActionGroup(this);
304 group->setExclusive(true);
305 ::addAction(corner_menu, tr("Bottom dock area"), group, mapper, 6);
306 ::addAction(corner_menu, tr("Right dock area"), group, mapper, 7);
307
308 dockWidgetMenu->addSeparator();
309
310 static const struct Set {
311 const char * name;
312 uint flags;
313 Qt::DockWidgetArea area;
314 } sets [] = {
315#ifndef Q_WS_MAC
316 { "Black", 0, Qt::LeftDockWidgetArea },
317#else
318 { "Black", Qt::Drawer, Qt::LeftDockWidgetArea },
319#endif
320 { "White", 0, Qt::RightDockWidgetArea },
321 { "Red", 0, Qt::TopDockWidgetArea },
322 { "Green", 0, Qt::TopDockWidgetArea },
323 { "Blue", 0, Qt::BottomDockWidgetArea },
324 { "Yellow", 0, Qt::BottomDockWidgetArea }
325 };
326 const int setCount = sizeof(sets) / sizeof(Set);
327
328 for (int i = 0; i < setCount; ++i) {
329 ColorSwatch *swatch = new ColorSwatch(tr(sets[i].name), this, Qt::WindowFlags(sets[i].flags));
330 if (i%2)
331 swatch->setWindowIcon(QIcon(QPixmap(":/res/qt.png")));
332 if (qstrcmp(sets[i].name, "Blue") == 0) {
333 BlueTitleBar *titlebar = new BlueTitleBar(swatch);
334 swatch->setTitleBarWidget(titlebar);
335 connect(swatch, SIGNAL(topLevelChanged(bool)), titlebar, SLOT(updateMask()));
336 connect(swatch, SIGNAL(featuresChanged(QDockWidget::DockWidgetFeatures)), titlebar, SLOT(updateMask()), Qt::QueuedConnection);
337
338#ifdef Q_WS_QWS
339 QPalette pal = palette();
340 pal.setBrush(backgroundRole(), QColor(0,0,0,0));
341 swatch->setPalette(pal);
342#endif
343 }
344
345 QString name = QString::fromLatin1(sets[i].name);
346 if (customSizeHints.contains(name))
347 swatch->setCustomSizeHint(customSizeHints.value(name));
348
349 addDockWidget(sets[i].area, swatch);
350 dockWidgetMenu->addMenu(swatch->menu);
351 }
352
353 createDockWidgetAction = new QAction(tr("Add dock widget..."), this);
354 connect(createDockWidgetAction, SIGNAL(triggered()), this, SLOT(createDockWidget()));
355 destroyDockWidgetMenu = new QMenu(tr("Destroy dock widget"), this);
356 destroyDockWidgetMenu->setEnabled(false);
357 connect(destroyDockWidgetMenu, SIGNAL(triggered(QAction*)), this, SLOT(destroyDockWidget(QAction*)));
358
359 dockWidgetMenu->addSeparator();
360 dockWidgetMenu->addAction(createDockWidgetAction);
361 dockWidgetMenu->addMenu(destroyDockWidgetMenu);
362}
363
364void MainWindow::setCorner(int id)
365{
366 switch (id) {
367 case 0:
368 QMainWindow::setCorner(Qt::TopLeftCorner, Qt::TopDockWidgetArea);
369 break;
370 case 1:
371 QMainWindow::setCorner(Qt::TopLeftCorner, Qt::LeftDockWidgetArea);
372 break;
373 case 2:
374 QMainWindow::setCorner(Qt::TopRightCorner, Qt::TopDockWidgetArea);
375 break;
376 case 3:
377 QMainWindow::setCorner(Qt::TopRightCorner, Qt::RightDockWidgetArea);
378 break;
379 case 4:
380 QMainWindow::setCorner(Qt::BottomLeftCorner, Qt::BottomDockWidgetArea);
381 break;
382 case 5:
383 QMainWindow::setCorner(Qt::BottomLeftCorner, Qt::LeftDockWidgetArea);
384 break;
385 case 6:
386 QMainWindow::setCorner(Qt::BottomRightCorner, Qt::BottomDockWidgetArea);
387 break;
388 case 7:
389 QMainWindow::setCorner(Qt::BottomRightCorner, Qt::RightDockWidgetArea);
390 break;
391 }
392}
393
394void MainWindow::showEvent(QShowEvent *event)
395{
396 QMainWindow::showEvent(event);
397}
398
399void MainWindow::switchLayoutDirection()
400{
401 if (layoutDirection() == Qt::LeftToRight)
402 qApp->setLayoutDirection(Qt::RightToLeft);
403 else
404 qApp->setLayoutDirection(Qt::LeftToRight);
405}
406
407class CreateDockWidgetDialog : public QDialog
408{
409public:
410 CreateDockWidgetDialog(QWidget *parent = 0);
411
412 QString objectName() const;
413 Qt::DockWidgetArea location() const;
414
415private:
416 QLineEdit *m_objectName;
417 QComboBox *m_location;
418};
419
420CreateDockWidgetDialog::CreateDockWidgetDialog(QWidget *parent)
421 : QDialog(parent)
422{
423 QGridLayout *layout = new QGridLayout(this);
424
425 layout->addWidget(new QLabel(tr("Object name:")), 0, 0);
426 m_objectName = new QLineEdit;
427 layout->addWidget(m_objectName, 0, 1);
428
429 layout->addWidget(new QLabel(tr("Location:")), 1, 0);
430 m_location = new QComboBox;
431 m_location->setEditable(false);
432 m_location->addItem(tr("Top"));
433 m_location->addItem(tr("Left"));
434 m_location->addItem(tr("Right"));
435 m_location->addItem(tr("Bottom"));
436 m_location->addItem(tr("Restore"));
437 layout->addWidget(m_location, 1, 1);
438
439 QHBoxLayout *buttonLayout = new QHBoxLayout;
440 layout->addLayout(buttonLayout, 2, 0, 1, 2);
441 buttonLayout->addStretch();
442
443 QPushButton *cancelButton = new QPushButton(tr("Cancel"));
444 connect(cancelButton, SIGNAL(clicked()), this, SLOT(reject()));
445 buttonLayout->addWidget(cancelButton);
446 QPushButton *okButton = new QPushButton(tr("Ok"));
447 connect(okButton, SIGNAL(clicked()), this, SLOT(accept()));
448 buttonLayout->addWidget(okButton);
449
450 okButton->setDefault(true);
451}
452
453QString CreateDockWidgetDialog::objectName() const
454{
455 return m_objectName->text();
456}
457
458Qt::DockWidgetArea CreateDockWidgetDialog::location() const
459{
460 switch (m_location->currentIndex()) {
461 case 0: return Qt::TopDockWidgetArea;
462 case 1: return Qt::LeftDockWidgetArea;
463 case 2: return Qt::RightDockWidgetArea;
464 case 3: return Qt::BottomDockWidgetArea;
465 default:
466 break;
467 }
468 return Qt::NoDockWidgetArea;
469}
470
471void MainWindow::createDockWidget()
472{
473 CreateDockWidgetDialog dialog(this);
474 int ret = dialog.exec();
475 if (ret == QDialog::Rejected)
476 return;
477
478 QDockWidget *dw = new QDockWidget;
479 dw->setObjectName(dialog.objectName());
480 dw->setWindowTitle(dialog.objectName());
481 dw->setWidget(new QTextEdit);
482
483 Qt::DockWidgetArea area = dialog.location();
484 switch (area) {
485 case Qt::LeftDockWidgetArea:
486 case Qt::RightDockWidgetArea:
487 case Qt::TopDockWidgetArea:
488 case Qt::BottomDockWidgetArea:
489 addDockWidget(area, dw);
490 break;
491 default:
492 if (!restoreDockWidget(dw)) {
493 QMessageBox::warning(this, QString(), tr("Failed to restore dock widget"));
494 delete dw;
495 return;
496 }
497 break;
498 }
499
500 extraDockWidgets.append(dw);
501 destroyDockWidgetMenu->setEnabled(true);
502 destroyDockWidgetMenu->addAction(new QAction(dialog.objectName(), this));
503}
504
505void MainWindow::destroyDockWidget(QAction *action)
506{
507 int index = destroyDockWidgetMenu->actions().indexOf(action);
508 delete extraDockWidgets.takeAt(index);
509 destroyDockWidgetMenu->removeAction(action);
510 action->deleteLater();
511
512 if (destroyDockWidgetMenu->isEmpty())
513 destroyDockWidgetMenu->setEnabled(false);
514}
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