source: trunk/demos/textedit/textedit.cpp@ 9

Last change on this file since 9 was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 21.5 KB
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1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information (qt-info@nokia.com)
5**
6** This file is part of the demonstration applications of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
21** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22**
23** In addition, as a special exception, Nokia gives you certain
24** additional rights. These rights are described in the Nokia Qt LGPL
25** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26** 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 are unsure which license is appropriate for your use, please
37** contact the sales department at qt-sales@nokia.com.
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include "textedit.h"
43
44#include <QAction>
45#include <QApplication>
46#include <QClipboard>
47#include <QColorDialog>
48#include <QComboBox>
49#include <QFontComboBox>
50#include <QFile>
51#include <QFileDialog>
52#include <QFileInfo>
53#include <QFontDatabase>
54#include <QMenu>
55#include <QMenuBar>
56#include <QPrintDialog>
57#include <QPrinter>
58#include <QTextCodec>
59#include <QTextEdit>
60#include <QToolBar>
61#include <QTextCursor>
62#include <QTextDocumentWriter>
63#include <QTextList>
64#include <QtDebug>
65#include <QCloseEvent>
66#include <QMessageBox>
67#include <QPrintPreviewDialog>
68
69#ifdef Q_WS_MAC
70const QString rsrcPath = ":/images/mac";
71#else
72const QString rsrcPath = ":/images/win";
73#endif
74
75TextEdit::TextEdit(QWidget *parent)
76 : QMainWindow(parent)
77{
78 setupFileActions();
79 setupEditActions();
80 setupTextActions();
81
82 {
83 QMenu *helpMenu = new QMenu(tr("Help"), this);
84 menuBar()->addMenu(helpMenu);
85 helpMenu->addAction(tr("About"), this, SLOT(about()));
86 helpMenu->addAction(tr("About &Qt"), qApp, SLOT(aboutQt()));
87 }
88
89 textEdit = new QTextEdit(this);
90 connect(textEdit, SIGNAL(currentCharFormatChanged(const QTextCharFormat &)),
91 this, SLOT(currentCharFormatChanged(const QTextCharFormat &)));
92 connect(textEdit, SIGNAL(cursorPositionChanged()),
93 this, SLOT(cursorPositionChanged()));
94
95 setCentralWidget(textEdit);
96 textEdit->setFocus();
97 setCurrentFileName(QString());
98
99 fontChanged(textEdit->font());
100 colorChanged(textEdit->textColor());
101 alignmentChanged(textEdit->alignment());
102
103 connect(textEdit->document(), SIGNAL(modificationChanged(bool)),
104 actionSave, SLOT(setEnabled(bool)));
105 connect(textEdit->document(), SIGNAL(modificationChanged(bool)),
106 this, SLOT(setWindowModified(bool)));
107 connect(textEdit->document(), SIGNAL(undoAvailable(bool)),
108 actionUndo, SLOT(setEnabled(bool)));
109 connect(textEdit->document(), SIGNAL(redoAvailable(bool)),
110 actionRedo, SLOT(setEnabled(bool)));
111
112 setWindowModified(textEdit->document()->isModified());
113 actionSave->setEnabled(textEdit->document()->isModified());
114 actionUndo->setEnabled(textEdit->document()->isUndoAvailable());
115 actionRedo->setEnabled(textEdit->document()->isRedoAvailable());
116
117 connect(actionUndo, SIGNAL(triggered()), textEdit, SLOT(undo()));
118 connect(actionRedo, SIGNAL(triggered()), textEdit, SLOT(redo()));
119
120 actionCut->setEnabled(false);
121 actionCopy->setEnabled(false);
122
123 connect(actionCut, SIGNAL(triggered()), textEdit, SLOT(cut()));
124 connect(actionCopy, SIGNAL(triggered()), textEdit, SLOT(copy()));
125 connect(actionPaste, SIGNAL(triggered()), textEdit, SLOT(paste()));
126
127 connect(textEdit, SIGNAL(copyAvailable(bool)), actionCut, SLOT(setEnabled(bool)));
128 connect(textEdit, SIGNAL(copyAvailable(bool)), actionCopy, SLOT(setEnabled(bool)));
129
130 connect(QApplication::clipboard(), SIGNAL(dataChanged()), this, SLOT(clipboardDataChanged()));
131
132 QString initialFile = ":/example.html";
133 const QStringList args = QCoreApplication::arguments();
134 if (args.count() == 2)
135 initialFile = args.at(1);
136
137 if (!load(initialFile))
138 fileNew();
139}
140
141void TextEdit::closeEvent(QCloseEvent *e)
142{
143 if (maybeSave())
144 e->accept();
145 else
146 e->ignore();
147}
148
149void TextEdit::setupFileActions()
150{
151 QToolBar *tb = new QToolBar(this);
152 tb->setWindowTitle(tr("File Actions"));
153 addToolBar(tb);
154
155 QMenu *menu = new QMenu(tr("&File"), this);
156 menuBar()->addMenu(menu);
157
158 QAction *a;
159
160 a = new QAction(QIcon(rsrcPath + "/filenew.png"), tr("&New"), this);
161 a->setShortcut(QKeySequence::New);
162 connect(a, SIGNAL(triggered()), this, SLOT(fileNew()));
163 tb->addAction(a);
164 menu->addAction(a);
165
166 a = new QAction(QIcon(rsrcPath + "/fileopen.png"), tr("&Open..."), this);
167 a->setShortcut(QKeySequence::Open);
168 connect(a, SIGNAL(triggered()), this, SLOT(fileOpen()));
169 tb->addAction(a);
170 menu->addAction(a);
171
172 menu->addSeparator();
173
174 actionSave = a = new QAction(QIcon(rsrcPath + "/filesave.png"), tr("&Save"), this);
175 a->setShortcut(QKeySequence::Save);
176 connect(a, SIGNAL(triggered()), this, SLOT(fileSave()));
177 a->setEnabled(false);
178 tb->addAction(a);
179 menu->addAction(a);
180
181 a = new QAction(tr("Save &As..."), this);
182 connect(a, SIGNAL(triggered()), this, SLOT(fileSaveAs()));
183 menu->addAction(a);
184 menu->addSeparator();
185
186#ifndef QT_NO_PRINTER
187 a = new QAction(QIcon(rsrcPath + "/fileprint.png"), tr("&Print..."), this);
188 a->setShortcut(QKeySequence::Print);
189 connect(a, SIGNAL(triggered()), this, SLOT(filePrint()));
190 tb->addAction(a);
191 menu->addAction(a);
192
193 a = new QAction(QIcon(rsrcPath + "/fileprint.png"), tr("Print Preview..."), this);
194 connect(a, SIGNAL(triggered()), this, SLOT(filePrintPreview()));
195 menu->addAction(a);
196
197 a = new QAction(QIcon(rsrcPath + "/exportpdf.png"), tr("&Export PDF..."), this);
198 a->setShortcut(Qt::CTRL + Qt::Key_D);
199 connect(a, SIGNAL(triggered()), this, SLOT(filePrintPdf()));
200 tb->addAction(a);
201 menu->addAction(a);
202
203 menu->addSeparator();
204#endif
205
206 a = new QAction(tr("&Quit"), this);
207 a->setShortcut(Qt::CTRL + Qt::Key_Q);
208 connect(a, SIGNAL(triggered()), this, SLOT(close()));
209 menu->addAction(a);
210}
211
212void TextEdit::setupEditActions()
213{
214 QToolBar *tb = new QToolBar(this);
215 tb->setWindowTitle(tr("Edit Actions"));
216 addToolBar(tb);
217
218 QMenu *menu = new QMenu(tr("&Edit"), this);
219 menuBar()->addMenu(menu);
220
221 QAction *a;
222 a = actionUndo = new QAction(QIcon(rsrcPath + "/editundo.png"), tr("&Undo"), this);
223 a->setShortcut(QKeySequence::Undo);
224 tb->addAction(a);
225 menu->addAction(a);
226 a = actionRedo = new QAction(QIcon(rsrcPath + "/editredo.png"), tr("&Redo"), this);
227 a->setShortcut(QKeySequence::Redo);
228 tb->addAction(a);
229 menu->addAction(a);
230 menu->addSeparator();
231 a = actionCut = new QAction(QIcon(rsrcPath + "/editcut.png"), tr("Cu&t"), this);
232 a->setShortcut(QKeySequence::Cut);
233 tb->addAction(a);
234 menu->addAction(a);
235 a = actionCopy = new QAction(QIcon(rsrcPath + "/editcopy.png"), tr("&Copy"), this);
236 a->setShortcut(QKeySequence::Copy);
237 tb->addAction(a);
238 menu->addAction(a);
239 a = actionPaste = new QAction(QIcon(rsrcPath + "/editpaste.png"), tr("&Paste"), this);
240 a->setShortcut(QKeySequence::Paste);
241 tb->addAction(a);
242 menu->addAction(a);
243 actionPaste->setEnabled(!QApplication::clipboard()->text().isEmpty());
244}
245
246void TextEdit::setupTextActions()
247{
248 QToolBar *tb = new QToolBar(this);
249 tb->setWindowTitle(tr("Format Actions"));
250 addToolBar(tb);
251
252 QMenu *menu = new QMenu(tr("F&ormat"), this);
253 menuBar()->addMenu(menu);
254
255 actionTextBold = new QAction(QIcon(rsrcPath + "/textbold.png"), tr("&Bold"), this);
256 actionTextBold->setShortcut(Qt::CTRL + Qt::Key_B);
257 QFont bold;
258 bold.setBold(true);
259 actionTextBold->setFont(bold);
260 connect(actionTextBold, SIGNAL(triggered()), this, SLOT(textBold()));
261 tb->addAction(actionTextBold);
262 menu->addAction(actionTextBold);
263 actionTextBold->setCheckable(true);
264
265 actionTextItalic = new QAction(QIcon(rsrcPath + "/textitalic.png"), tr("&Italic"), this);
266 actionTextItalic->setShortcut(Qt::CTRL + Qt::Key_I);
267 QFont italic;
268 italic.setItalic(true);
269 actionTextItalic->setFont(italic);
270 connect(actionTextItalic, SIGNAL(triggered()), this, SLOT(textItalic()));
271 tb->addAction(actionTextItalic);
272 menu->addAction(actionTextItalic);
273 actionTextItalic->setCheckable(true);
274
275 actionTextUnderline = new QAction(QIcon(rsrcPath + "/textunder.png"), tr("&Underline"), this);
276 actionTextUnderline->setShortcut(Qt::CTRL + Qt::Key_U);
277 QFont underline;
278 underline.setUnderline(true);
279 actionTextUnderline->setFont(underline);
280 connect(actionTextUnderline, SIGNAL(triggered()), this, SLOT(textUnderline()));
281 tb->addAction(actionTextUnderline);
282 menu->addAction(actionTextUnderline);
283 actionTextUnderline->setCheckable(true);
284
285 menu->addSeparator();
286
287 QActionGroup *grp = new QActionGroup(this);
288 connect(grp, SIGNAL(triggered(QAction *)), this, SLOT(textAlign(QAction *)));
289
290 // Make sure the alignLeft is always left of the alignRight
291 if (QApplication::isLeftToRight()) {
292 actionAlignLeft = new QAction(QIcon(rsrcPath + "/textleft.png"), tr("&Left"), grp);
293 actionAlignCenter = new QAction(QIcon(rsrcPath + "/textcenter.png"), tr("C&enter"), grp);
294 actionAlignRight = new QAction(QIcon(rsrcPath + "/textright.png"), tr("&Right"), grp);
295 } else {
296 actionAlignRight = new QAction(QIcon(rsrcPath + "/textright.png"), tr("&Right"), grp);
297 actionAlignCenter = new QAction(QIcon(rsrcPath + "/textcenter.png"), tr("C&enter"), grp);
298 actionAlignLeft = new QAction(QIcon(rsrcPath + "/textleft.png"), tr("&Left"), grp);
299 }
300 actionAlignJustify = new QAction(QIcon(rsrcPath + "/textjustify.png"), tr("&Justify"), grp);
301
302 actionAlignLeft->setShortcut(Qt::CTRL + Qt::Key_L);
303 actionAlignLeft->setCheckable(true);
304 actionAlignCenter->setShortcut(Qt::CTRL + Qt::Key_E);
305 actionAlignCenter->setCheckable(true);
306 actionAlignRight->setShortcut(Qt::CTRL + Qt::Key_R);
307 actionAlignRight->setCheckable(true);
308 actionAlignJustify->setShortcut(Qt::CTRL + Qt::Key_J);
309 actionAlignJustify->setCheckable(true);
310
311 tb->addActions(grp->actions());
312 menu->addActions(grp->actions());
313
314 menu->addSeparator();
315
316 QPixmap pix(16, 16);
317 pix.fill(Qt::black);
318 actionTextColor = new QAction(pix, tr("&Color..."), this);
319 connect(actionTextColor, SIGNAL(triggered()), this, SLOT(textColor()));
320 tb->addAction(actionTextColor);
321 menu->addAction(actionTextColor);
322
323
324 tb = new QToolBar(this);
325 tb->setAllowedAreas(Qt::TopToolBarArea | Qt::BottomToolBarArea);
326 tb->setWindowTitle(tr("Format Actions"));
327 addToolBarBreak(Qt::TopToolBarArea);
328 addToolBar(tb);
329
330 comboStyle = new QComboBox(tb);
331 tb->addWidget(comboStyle);
332 comboStyle->addItem("Standard");
333 comboStyle->addItem("Bullet List (Disc)");
334 comboStyle->addItem("Bullet List (Circle)");
335 comboStyle->addItem("Bullet List (Square)");
336 comboStyle->addItem("Ordered List (Decimal)");
337 comboStyle->addItem("Ordered List (Alpha lower)");
338 comboStyle->addItem("Ordered List (Alpha upper)");
339 connect(comboStyle, SIGNAL(activated(int)),
340 this, SLOT(textStyle(int)));
341
342 comboFont = new QFontComboBox(tb);
343 tb->addWidget(comboFont);
344 connect(comboFont, SIGNAL(activated(const QString &)),
345 this, SLOT(textFamily(const QString &)));
346
347 comboSize = new QComboBox(tb);
348 comboSize->setObjectName("comboSize");
349 tb->addWidget(comboSize);
350 comboSize->setEditable(true);
351
352 QFontDatabase db;
353 foreach(int size, db.standardSizes())
354 comboSize->addItem(QString::number(size));
355
356 connect(comboSize, SIGNAL(activated(const QString &)),
357 this, SLOT(textSize(const QString &)));
358 comboSize->setCurrentIndex(comboSize->findText(QString::number(QApplication::font()
359 .pointSize())));
360}
361
362bool TextEdit::load(const QString &f)
363{
364 if (!QFile::exists(f))
365 return false;
366 QFile file(f);
367 if (!file.open(QFile::ReadOnly))
368 return false;
369
370 QByteArray data = file.readAll();
371 QTextCodec *codec = Qt::codecForHtml(data);
372 QString str = codec->toUnicode(data);
373 if (Qt::mightBeRichText(str)) {
374 textEdit->setHtml(str);
375 } else {
376 str = QString::fromLocal8Bit(data);
377 textEdit->setPlainText(str);
378 }
379
380 setCurrentFileName(f);
381 return true;
382}
383
384bool TextEdit::maybeSave()
385{
386 if (!textEdit->document()->isModified())
387 return true;
388 if (fileName.startsWith(QLatin1String(":/")))
389 return true;
390 QMessageBox::StandardButton ret;
391 ret = QMessageBox::warning(this, tr("Application"),
392 tr("The document has been modified.\n"
393 "Do you want to save your changes?"),
394 QMessageBox::Save | QMessageBox::Discard
395 | QMessageBox::Cancel);
396 if (ret == QMessageBox::Save)
397 return fileSave();
398 else if (ret == QMessageBox::Cancel)
399 return false;
400 return true;
401}
402
403void TextEdit::setCurrentFileName(const QString &fileName)
404{
405 this->fileName = fileName;
406 textEdit->document()->setModified(false);
407
408 QString shownName;
409 if (fileName.isEmpty())
410 shownName = "untitled.txt";
411 else
412 shownName = QFileInfo(fileName).fileName();
413
414 setWindowTitle(tr("%1[*] - %2").arg(shownName).arg(tr("Rich Text")));
415 setWindowModified(false);
416}
417
418void TextEdit::fileNew()
419{
420 if (maybeSave()) {
421 textEdit->clear();
422 setCurrentFileName(QString());
423 }
424}
425
426void TextEdit::fileOpen()
427{
428 QString fn = QFileDialog::getOpenFileName(this, tr("Open File..."),
429 QString(), tr("HTML-Files (*.htm *.html);;All Files (*)"));
430 if (!fn.isEmpty())
431 load(fn);
432}
433
434bool TextEdit::fileSave()
435{
436 if (fileName.isEmpty())
437 return fileSaveAs();
438
439 QTextDocumentWriter writer(fileName);
440 bool success = writer.write(textEdit->document());
441 if (success)
442 textEdit->document()->setModified(false);
443 return success;
444}
445
446bool TextEdit::fileSaveAs()
447{
448 QString fn = QFileDialog::getSaveFileName(this, tr("Save as..."),
449 QString(), tr("ODF files (*.odt);;HTML-Files (*.htm *.html);;All Files (*)"));
450 if (fn.isEmpty())
451 return false;
452 if (! (fn.endsWith(".odt", Qt::CaseInsensitive) || fn.endsWith(".htm", Qt::CaseInsensitive) || fn.endsWith(".html", Qt::CaseInsensitive)) )
453 fn += ".odt"; // default
454 setCurrentFileName(fn);
455 return fileSave();
456}
457
458void TextEdit::filePrint()
459{
460#ifndef QT_NO_PRINTER
461 QPrinter printer(QPrinter::HighResolution);
462 QPrintDialog *dlg = new QPrintDialog(&printer, this);
463 if (textEdit->textCursor().hasSelection())
464 dlg->addEnabledOption(QAbstractPrintDialog::PrintSelection);
465 dlg->setWindowTitle(tr("Print Document"));
466 if (dlg->exec() == QDialog::Accepted) {
467 textEdit->print(&printer);
468 }
469 delete dlg;
470#endif
471}
472
473void TextEdit::filePrintPreview()
474{
475#ifndef QT_NO_PRINTER
476 QPrinter printer(QPrinter::HighResolution);
477 QPrintPreviewDialog preview(&printer, this);
478 connect(&preview, SIGNAL(paintRequested(QPrinter *)), SLOT(printPreview(QPrinter *)));
479 preview.exec();
480#endif
481}
482
483void TextEdit::printPreview(QPrinter *printer)
484{
485#ifdef QT_NO_PRINTER
486 Q_UNUSED(printer);
487#else
488 textEdit->print(printer);
489#endif
490}
491
492
493void TextEdit::filePrintPdf()
494{
495#ifndef QT_NO_PRINTER
496//! [0]
497 QString fileName = QFileDialog::getSaveFileName(this, "Export PDF",
498 QString(), "*.pdf");
499 if (!fileName.isEmpty()) {
500 if (QFileInfo(fileName).suffix().isEmpty())
501 fileName.append(".pdf");
502 QPrinter printer(QPrinter::HighResolution);
503 printer.setOutputFormat(QPrinter::PdfFormat);
504 printer.setOutputFileName(fileName);
505 textEdit->document()->print(&printer);
506 }
507//! [0]
508#endif
509}
510
511void TextEdit::textBold()
512{
513 QTextCharFormat fmt;
514 fmt.setFontWeight(actionTextBold->isChecked() ? QFont::Bold : QFont::Normal);
515 mergeFormatOnWordOrSelection(fmt);
516}
517
518void TextEdit::textUnderline()
519{
520 QTextCharFormat fmt;
521 fmt.setFontUnderline(actionTextUnderline->isChecked());
522 mergeFormatOnWordOrSelection(fmt);
523}
524
525void TextEdit::textItalic()
526{
527 QTextCharFormat fmt;
528 fmt.setFontItalic(actionTextItalic->isChecked());
529 mergeFormatOnWordOrSelection(fmt);
530}
531
532void TextEdit::textFamily(const QString &f)
533{
534 QTextCharFormat fmt;
535 fmt.setFontFamily(f);
536 mergeFormatOnWordOrSelection(fmt);
537}
538
539void TextEdit::textSize(const QString &p)
540{
541 qreal pointSize = p.toFloat();
542 if (p.toFloat() > 0) {
543 QTextCharFormat fmt;
544 fmt.setFontPointSize(pointSize);
545 mergeFormatOnWordOrSelection(fmt);
546 }
547}
548
549void TextEdit::textStyle(int styleIndex)
550{
551 QTextCursor cursor = textEdit->textCursor();
552
553 if (styleIndex != 0) {
554 QTextListFormat::Style style = QTextListFormat::ListDisc;
555
556 switch (styleIndex) {
557 default:
558 case 1:
559 style = QTextListFormat::ListDisc;
560 break;
561 case 2:
562 style = QTextListFormat::ListCircle;
563 break;
564 case 3:
565 style = QTextListFormat::ListSquare;
566 break;
567 case 4:
568 style = QTextListFormat::ListDecimal;
569 break;
570 case 5:
571 style = QTextListFormat::ListLowerAlpha;
572 break;
573 case 6:
574 style = QTextListFormat::ListUpperAlpha;
575 break;
576 }
577
578 cursor.beginEditBlock();
579
580 QTextBlockFormat blockFmt = cursor.blockFormat();
581
582 QTextListFormat listFmt;
583
584 if (cursor.currentList()) {
585 listFmt = cursor.currentList()->format();
586 } else {
587 listFmt.setIndent(blockFmt.indent() + 1);
588 blockFmt.setIndent(0);
589 cursor.setBlockFormat(blockFmt);
590 }
591
592 listFmt.setStyle(style);
593
594 cursor.createList(listFmt);
595
596 cursor.endEditBlock();
597 } else {
598 // ####
599 QTextBlockFormat bfmt;
600 bfmt.setObjectIndex(-1);
601 cursor.mergeBlockFormat(bfmt);
602 }
603}
604
605void TextEdit::textColor()
606{
607 QColor col = QColorDialog::getColor(textEdit->textColor(), this);
608 if (!col.isValid())
609 return;
610 QTextCharFormat fmt;
611 fmt.setForeground(col);
612 mergeFormatOnWordOrSelection(fmt);
613 colorChanged(col);
614}
615
616void TextEdit::textAlign(QAction *a)
617{
618 if (a == actionAlignLeft)
619 textEdit->setAlignment(Qt::AlignLeft | Qt::AlignAbsolute);
620 else if (a == actionAlignCenter)
621 textEdit->setAlignment(Qt::AlignHCenter);
622 else if (a == actionAlignRight)
623 textEdit->setAlignment(Qt::AlignRight | Qt::AlignAbsolute);
624 else if (a == actionAlignJustify)
625 textEdit->setAlignment(Qt::AlignJustify);
626}
627
628void TextEdit::currentCharFormatChanged(const QTextCharFormat &format)
629{
630 fontChanged(format.font());
631 colorChanged(format.foreground().color());
632}
633
634void TextEdit::cursorPositionChanged()
635{
636 alignmentChanged(textEdit->alignment());
637}
638
639void TextEdit::clipboardDataChanged()
640{
641 actionPaste->setEnabled(!QApplication::clipboard()->text().isEmpty());
642}
643
644void TextEdit::about()
645{
646 QMessageBox::about(this, tr("About"), tr("This example demonstrates Qt's "
647 "rich text editing facilities in action, providing an example "
648 "document for you to experiment with."));
649}
650
651void TextEdit::mergeFormatOnWordOrSelection(const QTextCharFormat &format)
652{
653 QTextCursor cursor = textEdit->textCursor();
654 if (!cursor.hasSelection())
655 cursor.select(QTextCursor::WordUnderCursor);
656 cursor.mergeCharFormat(format);
657 textEdit->mergeCurrentCharFormat(format);
658}
659
660void TextEdit::fontChanged(const QFont &f)
661{
662 comboFont->setCurrentIndex(comboFont->findText(QFontInfo(f).family()));
663 comboSize->setCurrentIndex(comboSize->findText(QString::number(f.pointSize())));
664 actionTextBold->setChecked(f.bold());
665 actionTextItalic->setChecked(f.italic());
666 actionTextUnderline->setChecked(f.underline());
667}
668
669void TextEdit::colorChanged(const QColor &c)
670{
671 QPixmap pix(16, 16);
672 pix.fill(c);
673 actionTextColor->setIcon(pix);
674}
675
676void TextEdit::alignmentChanged(Qt::Alignment a)
677{
678 if (a & Qt::AlignLeft) {
679 actionAlignLeft->setChecked(true);
680 } else if (a & Qt::AlignHCenter) {
681 actionAlignCenter->setChecked(true);
682 } else if (a & Qt::AlignRight) {
683 actionAlignRight->setChecked(true);
684 } else if (a & Qt::AlignJustify) {
685 actionAlignJustify->setChecked(true);
686 }
687}
688
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