source: trunk/examples/mainwindows/menus/mainwindow.cpp@ 758

Last change on this file since 758 was 651, checked in by Dmitry A. Kuminov, 16 years ago

trunk: Merged in qt 4.6.2 sources.
File size: 11.7 KB
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1/****************************************************************************
2**
3** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation (qt-info@nokia.com)
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7** This file is part of the examples of the Qt Toolkit.
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40****************************************************************************/
41
42#include <QtGui>
43
44#include "mainwindow.h"
45
46//! [0]
47MainWindow::MainWindow()
48{
49 QWidget *widget = new QWidget;
50 setCentralWidget(widget);
51//! [0]
52
53//! [1]
54 QWidget *topFiller = new QWidget;
55 topFiller->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
56
57 infoLabel = new QLabel(tr("<i>Choose a menu option, or right-click to "
58 "invoke a context menu</i>"));
59 infoLabel->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken);
60 infoLabel->setAlignment(Qt::AlignCenter);
61
62 QWidget *bottomFiller = new QWidget;
63 bottomFiller->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
64
65 QVBoxLayout *layout = new QVBoxLayout;
66 layout->setMargin(5);
67 layout->addWidget(topFiller);
68 layout->addWidget(infoLabel);
69 layout->addWidget(bottomFiller);
70 widget->setLayout(layout);
71//! [1]
72
73//! [2]
74 createActions();
75 createMenus();
76
77 QString message = tr("A context menu is available by right-clicking");
78 statusBar()->showMessage(message);
79
80 setWindowTitle(tr("Menus"));
81 setMinimumSize(160, 160);
82 resize(480, 320);
83}
84//! [2]
85
86//! [3]
87void MainWindow::contextMenuEvent(QContextMenuEvent *event)
88{
89 QMenu menu(this);
90 menu.addAction(cutAct);
91 menu.addAction(copyAct);
92 menu.addAction(pasteAct);
93 menu.exec(event->globalPos());
94}
95//! [3]
96
97void MainWindow::newFile()
98{
99 infoLabel->setText(tr("Invoked <b>File|New</b>"));
100}
101
102void MainWindow::open()
103{
104 infoLabel->setText(tr("Invoked <b>File|Open</b>"));
105}
106
107void MainWindow::save()
108{
109 infoLabel->setText(tr("Invoked <b>File|Save</b>"));
110}
111
112void MainWindow::print()
113{
114 infoLabel->setText(tr("Invoked <b>File|Print</b>"));
115}
116
117void MainWindow::undo()
118{
119 infoLabel->setText(tr("Invoked <b>Edit|Undo</b>"));
120}
121
122void MainWindow::redo()
123{
124 infoLabel->setText(tr("Invoked <b>Edit|Redo</b>"));
125}
126
127void MainWindow::cut()
128{
129 infoLabel->setText(tr("Invoked <b>Edit|Cut</b>"));
130}
131
132void MainWindow::copy()
133{
134 infoLabel->setText(tr("Invoked <b>Edit|Copy</b>"));
135}
136
137void MainWindow::paste()
138{
139 infoLabel->setText(tr("Invoked <b>Edit|Paste</b>"));
140}
141
142void MainWindow::bold()
143{
144 infoLabel->setText(tr("Invoked <b>Edit|Format|Bold</b>"));
145}
146
147void MainWindow::italic()
148{
149 infoLabel->setText(tr("Invoked <b>Edit|Format|Italic</b>"));
150}
151
152void MainWindow::leftAlign()
153{
154 infoLabel->setText(tr("Invoked <b>Edit|Format|Left Align</b>"));
155}
156
157void MainWindow::rightAlign()
158{
159 infoLabel->setText(tr("Invoked <b>Edit|Format|Right Align</b>"));
160}
161
162void MainWindow::justify()
163{
164 infoLabel->setText(tr("Invoked <b>Edit|Format|Justify</b>"));
165}
166
167void MainWindow::center()
168{
169 infoLabel->setText(tr("Invoked <b>Edit|Format|Center</b>"));
170}
171
172void MainWindow::setLineSpacing()
173{
174 infoLabel->setText(tr("Invoked <b>Edit|Format|Set Line Spacing</b>"));
175}
176
177void MainWindow::setParagraphSpacing()
178{
179 infoLabel->setText(tr("Invoked <b>Edit|Format|Set Paragraph Spacing</b>"));
180}
181
182void MainWindow::about()
183{
184 infoLabel->setText(tr("Invoked <b>Help|About</b>"));
185 QMessageBox::about(this, tr("About Menu"),
186 tr("The <b>Menu</b> example shows how to create "
187 "menu-bar menus and context menus."));
188}
189
190void MainWindow::aboutQt()
191{
192 infoLabel->setText(tr("Invoked <b>Help|About Qt</b>"));
193}
194
195//! [4]
196void MainWindow::createActions()
197{
198//! [5]
199 newAct = new QAction(tr("&New"), this);
200 newAct->setShortcuts(QKeySequence::New);
201 newAct->setStatusTip(tr("Create a new file"));
202 connect(newAct, SIGNAL(triggered()), this, SLOT(newFile()));
203//! [4]
204
205 openAct = new QAction(tr("&Open..."), this);
206 openAct->setShortcuts(QKeySequence::Open);
207 openAct->setStatusTip(tr("Open an existing file"));
208 connect(openAct, SIGNAL(triggered()), this, SLOT(open()));
209//! [5]
210
211 saveAct = new QAction(tr("&Save"), this);
212 saveAct->setShortcuts(QKeySequence::Save);
213 saveAct->setStatusTip(tr("Save the document to disk"));
214 connect(saveAct, SIGNAL(triggered()), this, SLOT(save()));
215
216 printAct = new QAction(tr("&Print..."), this);
217 printAct->setShortcuts(QKeySequence::Print);
218 printAct->setStatusTip(tr("Print the document"));
219 connect(printAct, SIGNAL(triggered()), this, SLOT(print()));
220
221 exitAct = new QAction(tr("E&xit"), this);
222 exitAct->setShortcuts(QKeySequence::Quit);
223 exitAct->setStatusTip(tr("Exit the application"));
224 connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
225
226 undoAct = new QAction(tr("&Undo"), this);
227 undoAct->setShortcuts(QKeySequence::Undo);
228 undoAct->setStatusTip(tr("Undo the last operation"));
229 connect(undoAct, SIGNAL(triggered()), this, SLOT(undo()));
230
231 redoAct = new QAction(tr("&Redo"), this);
232 redoAct->setShortcuts(QKeySequence::Redo);
233 redoAct->setStatusTip(tr("Redo the last operation"));
234 connect(redoAct, SIGNAL(triggered()), this, SLOT(redo()));
235
236 cutAct = new QAction(tr("Cu&t"), this);
237 cutAct->setShortcuts(QKeySequence::Cut);
238 cutAct->setStatusTip(tr("Cut the current selection's contents to the "
239 "clipboard"));
240 connect(cutAct, SIGNAL(triggered()), this, SLOT(cut()));
241
242 copyAct = new QAction(tr("&Copy"), this);
243 copyAct->setShortcuts(QKeySequence::Copy);
244 copyAct->setStatusTip(tr("Copy the current selection's contents to the "
245 "clipboard"));
246 connect(copyAct, SIGNAL(triggered()), this, SLOT(copy()));
247
248 pasteAct = new QAction(tr("&Paste"), this);
249 pasteAct->setShortcuts(QKeySequence::Paste);
250 pasteAct->setStatusTip(tr("Paste the clipboard's contents into the current "
251 "selection"));
252 connect(pasteAct, SIGNAL(triggered()), this, SLOT(paste()));
253
254 boldAct = new QAction(tr("&Bold"), this);
255 boldAct->setCheckable(true);
256 boldAct->setShortcut(QKeySequence::Bold);
257 boldAct->setStatusTip(tr("Make the text bold"));
258 connect(boldAct, SIGNAL(triggered()), this, SLOT(bold()));
259
260 QFont boldFont = boldAct->font();
261 boldFont.setBold(true);
262 boldAct->setFont(boldFont);
263
264 italicAct = new QAction(tr("&Italic"), this);
265 italicAct->setCheckable(true);
266 italicAct->setShortcut(QKeySequence::Italic);
267 italicAct->setStatusTip(tr("Make the text italic"));
268 connect(italicAct, SIGNAL(triggered()), this, SLOT(italic()));
269
270 QFont italicFont = italicAct->font();
271 italicFont.setItalic(true);
272 italicAct->setFont(italicFont);
273
274 setLineSpacingAct = new QAction(tr("Set &Line Spacing..."), this);
275 setLineSpacingAct->setStatusTip(tr("Change the gap between the lines of a "
276 "paragraph"));
277 connect(setLineSpacingAct, SIGNAL(triggered()), this, SLOT(setLineSpacing()));
278
279 setParagraphSpacingAct = new QAction(tr("Set &Paragraph Spacing..."), this);
280 setLineSpacingAct->setStatusTip(tr("Change the gap between paragraphs"));
281 connect(setParagraphSpacingAct, SIGNAL(triggered()),
282 this, SLOT(setParagraphSpacing()));
283
284 aboutAct = new QAction(tr("&About"), this);
285 aboutAct->setStatusTip(tr("Show the application's About box"));
286 connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
287
288 aboutQtAct = new QAction(tr("About &Qt"), this);
289 aboutQtAct->setStatusTip(tr("Show the Qt library's About box"));
290 connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
291 connect(aboutQtAct, SIGNAL(triggered()), this, SLOT(aboutQt()));
292
293 leftAlignAct = new QAction(tr("&Left Align"), this);
294 leftAlignAct->setCheckable(true);
295 leftAlignAct->setShortcut(tr("Ctrl+L"));
296 leftAlignAct->setStatusTip(tr("Left align the selected text"));
297 connect(leftAlignAct, SIGNAL(triggered()), this, SLOT(leftAlign()));
298
299 rightAlignAct = new QAction(tr("&Right Align"), this);
300 rightAlignAct->setCheckable(true);
301 rightAlignAct->setShortcut(tr("Ctrl+R"));
302 rightAlignAct->setStatusTip(tr("Right align the selected text"));
303 connect(rightAlignAct, SIGNAL(triggered()), this, SLOT(rightAlign()));
304
305 justifyAct = new QAction(tr("&Justify"), this);
306 justifyAct->setCheckable(true);
307 justifyAct->setShortcut(tr("Ctrl+J"));
308 justifyAct->setStatusTip(tr("Justify the selected text"));
309 connect(justifyAct, SIGNAL(triggered()), this, SLOT(justify()));
310
311 centerAct = new QAction(tr("&Center"), this);
312 centerAct->setCheckable(true);
313 centerAct->setShortcut(tr("Ctrl+E"));
314 centerAct->setStatusTip(tr("Center the selected text"));
315 connect(centerAct, SIGNAL(triggered()), this, SLOT(center()));
316
317//! [6] //! [7]
318 alignmentGroup = new QActionGroup(this);
319 alignmentGroup->addAction(leftAlignAct);
320 alignmentGroup->addAction(rightAlignAct);
321 alignmentGroup->addAction(justifyAct);
322 alignmentGroup->addAction(centerAct);
323 leftAlignAct->setChecked(true);
324//! [6]
325}
326//! [7]
327
328//! [8]
329void MainWindow::createMenus()
330{
331//! [9] //! [10]
332 fileMenu = menuBar()->addMenu(tr("&File"));
333 fileMenu->addAction(newAct);
334//! [9]
335 fileMenu->addAction(openAct);
336//! [10]
337 fileMenu->addAction(saveAct);
338 fileMenu->addAction(printAct);
339//! [11]
340 fileMenu->addSeparator();
341//! [11]
342 fileMenu->addAction(exitAct);
343
344 editMenu = menuBar()->addMenu(tr("&Edit"));
345 editMenu->addAction(undoAct);
346 editMenu->addAction(redoAct);
347 editMenu->addSeparator();
348 editMenu->addAction(cutAct);
349 editMenu->addAction(copyAct);
350 editMenu->addAction(pasteAct);
351 editMenu->addSeparator();
352
353 helpMenu = menuBar()->addMenu(tr("&Help"));
354 helpMenu->addAction(aboutAct);
355 helpMenu->addAction(aboutQtAct);
356//! [8]
357
358//! [12]
359 formatMenu = editMenu->addMenu(tr("&Format"));
360 formatMenu->addAction(boldAct);
361 formatMenu->addAction(italicAct);
362 formatMenu->addSeparator()->setText(tr("Alignment"));
363 formatMenu->addAction(leftAlignAct);
364 formatMenu->addAction(rightAlignAct);
365 formatMenu->addAction(justifyAct);
366 formatMenu->addAction(centerAct);
367 formatMenu->addSeparator();
368 formatMenu->addAction(setLineSpacingAct);
369 formatMenu->addAction(setParagraphSpacingAct);
370}
371//! [12]
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