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qt5base-lts/examples/widgets/richtext/textedit/textedit.cpp
Axel Waggershauser b11317a643 Whitespace cleanup: remove trailing whitespace 
Remove all trailing whitespace from the following list of files:
*.cpp *.h *.conf *.qdoc *.pro *.pri *.mm *.rc *.pl *.qps *.xpm *.txt *README
excluding 3rdparty, test-data and auto generated code.

Note A): the only non 3rdparty c++-files that still
have trailing whitespace after this change are:
* src/corelib/codecs/cp949codetbl_p.h
* src/corelib/codecs/qjpunicode.cpp
* src/corelib/codecs/qbig5codec.cpp
* src/corelib/xml/qxmlstream_p.h
* src/tools/qdoc/qmlparser/qqmljsgrammar.cpp
* src/tools/uic/ui4.cpp
* tests/auto/other/qtokenautomaton/tokenizers/*
* tests/benchmarks/corelib/tools/qstring/data.cpp
* util/lexgen/tokenizer.cpp

Note B): in about 30 files some overlapping 'leading tab' and
'TAB character in non-leading whitespace' issues have been fixed
to make the sanity bot happy. Plus some general ws-fixes here
and there as asked for during review.

Change-Id: Ia713113c34d82442d6ce4d93d8b1cf545075d11d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2013-03-16 20:22:50 +01:00

750 lines
25 KiB
C++
Raw Blame History

/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QAction>
#include <QApplication>
#include <QClipboard>
#include <QColorDialog>
#include <QComboBox>
#include <QFontComboBox>
#include <QFile>
#include <QFileDialog>
#include <QFileInfo>
#include <QFontDatabase>
#include <QMenu>
#include <QMenuBar>
#include <QTextCodec>
#include <QTextEdit>
#include <QToolBar>
#include <QTextCursor>
#include <QTextDocumentWriter>
#include <QTextList>
#include <QtDebug>
#include <QCloseEvent>
#include <QMessageBox>
#include <QMimeData>
#ifndef QT_NO_PRINTER
#include <QPrintDialog>
#include <QPrinter>
#include <QPrintPreviewDialog>
#endif
#include "textedit.h"
#ifdef Q_OS_MAC
const QString rsrcPath = ":/images/mac";
#else
const QString rsrcPath = ":/images/win";
#endif
TextEdit::TextEdit(QWidget *parent)
: QMainWindow(parent)
{
setToolButtonStyle(Qt::ToolButtonFollowStyle);
setupFileActions();
setupEditActions();
setupTextActions();
{
QMenu *helpMenu = new QMenu(tr("Help"), this);
menuBar()->addMenu(helpMenu);
helpMenu->addAction(tr("About"), this, SLOT(about()));
helpMenu->addAction(tr("About &Qt"), qApp, SLOT(aboutQt()));
}
textEdit = new QTextEdit(this);
connect(textEdit, SIGNAL(currentCharFormatChanged(QTextCharFormat)),
this, SLOT(currentCharFormatChanged(QTextCharFormat)));
connect(textEdit, SIGNAL(cursorPositionChanged()),
this, SLOT(cursorPositionChanged()));
setCentralWidget(textEdit);
textEdit->setFocus();
setCurrentFileName(QString());
fontChanged(textEdit->font());
colorChanged(textEdit->textColor());
alignmentChanged(textEdit->alignment());
connect(textEdit->document(), SIGNAL(modificationChanged(bool)),
actionSave, SLOT(setEnabled(bool)));
connect(textEdit->document(), SIGNAL(modificationChanged(bool)),
this, SLOT(setWindowModified(bool)));
connect(textEdit->document(), SIGNAL(undoAvailable(bool)),
actionUndo, SLOT(setEnabled(bool)));
connect(textEdit->document(), SIGNAL(redoAvailable(bool)),
actionRedo, SLOT(setEnabled(bool)));
setWindowModified(textEdit->document()->isModified());
actionSave->setEnabled(textEdit->document()->isModified());
actionUndo->setEnabled(textEdit->document()->isUndoAvailable());
actionRedo->setEnabled(textEdit->document()->isRedoAvailable());
connect(actionUndo, SIGNAL(triggered()), textEdit, SLOT(undo()));
connect(actionRedo, SIGNAL(triggered()), textEdit, SLOT(redo()));
actionCut->setEnabled(false);
actionCopy->setEnabled(false);
connect(actionCut, SIGNAL(triggered()), textEdit, SLOT(cut()));
connect(actionCopy, SIGNAL(triggered()), textEdit, SLOT(copy()));
connect(actionPaste, SIGNAL(triggered()), textEdit, SLOT(paste()));
connect(textEdit, SIGNAL(copyAvailable(bool)), actionCut, SLOT(setEnabled(bool)));
connect(textEdit, SIGNAL(copyAvailable(bool)), actionCopy, SLOT(setEnabled(bool)));
#ifndef QT_NO_CLIPBOARD
connect(QApplication::clipboard(), SIGNAL(dataChanged()), this, SLOT(clipboardDataChanged()));
#endif
QString initialFile = ":/example.html";
const QStringList args = QCoreApplication::arguments();
if (args.count() == 2)
initialFile = args.at(1);
if (!load(initialFile))
fileNew();
}
void TextEdit::closeEvent(QCloseEvent *e)
{
if (maybeSave())
e->accept();
else
e->ignore();
}
void TextEdit::setupFileActions()
{
QToolBar *tb = new QToolBar(this);
tb->setWindowTitle(tr("File Actions"));
addToolBar(tb);
QMenu *menu = new QMenu(tr("&File"), this);
menuBar()->addMenu(menu);
QAction *a;
QIcon newIcon = QIcon::fromTheme("document-new", QIcon(rsrcPath + "/filenew.png"));
a = new QAction( newIcon, tr("&New"), this);
a->setPriority(QAction::LowPriority);
a->setShortcut(QKeySequence::New);
connect(a, SIGNAL(triggered()), this, SLOT(fileNew()));
tb->addAction(a);
menu->addAction(a);
a = new QAction(QIcon::fromTheme("document-open", QIcon(rsrcPath + "/fileopen.png")),
tr("&Open..."), this);
a->setShortcut(QKeySequence::Open);
connect(a, SIGNAL(triggered()), this, SLOT(fileOpen()));
tb->addAction(a);
menu->addAction(a);
menu->addSeparator();
actionSave = a = new QAction(QIcon::fromTheme("document-save", QIcon(rsrcPath + "/filesave.png")),
tr("&Save"), this);
a->setShortcut(QKeySequence::Save);
connect(a, SIGNAL(triggered()), this, SLOT(fileSave()));
a->setEnabled(false);
tb->addAction(a);
menu->addAction(a);
a = new QAction(tr("Save &As..."), this);
a->setPriority(QAction::LowPriority);
connect(a, SIGNAL(triggered()), this, SLOT(fileSaveAs()));
menu->addAction(a);
menu->addSeparator();
#ifndef QT_NO_PRINTER
a = new QAction(QIcon::fromTheme("document-print", QIcon(rsrcPath + "/fileprint.png")),
tr("&Print..."), this);
a->setPriority(QAction::LowPriority);
a->setShortcut(QKeySequence::Print);
connect(a, SIGNAL(triggered()), this, SLOT(filePrint()));
tb->addAction(a);
menu->addAction(a);
a = new QAction(QIcon::fromTheme("fileprint", QIcon(rsrcPath + "/fileprint.png")),
tr("Print Preview..."), this);
connect(a, SIGNAL(triggered()), this, SLOT(filePrintPreview()));
menu->addAction(a);
a = new QAction(QIcon::fromTheme("exportpdf", QIcon(rsrcPath + "/exportpdf.png")),
tr("&Export PDF..."), this);
a->setPriority(QAction::LowPriority);
a->setShortcut(Qt::CTRL + Qt::Key_D);
connect(a, SIGNAL(triggered()), this, SLOT(filePrintPdf()));
tb->addAction(a);
menu->addAction(a);
menu->addSeparator();
#endif
a = new QAction(tr("&Quit"), this);
a->setShortcut(Qt::CTRL + Qt::Key_Q);
connect(a, SIGNAL(triggered()), this, SLOT(close()));
menu->addAction(a);
}
void TextEdit::setupEditActions()
{
QToolBar *tb = new QToolBar(this);
tb->setWindowTitle(tr("Edit Actions"));
addToolBar(tb);
QMenu *menu = new QMenu(tr("&Edit"), this);
menuBar()->addMenu(menu);
QAction *a;
a = actionUndo = new QAction(QIcon::fromTheme("edit-undo", QIcon(rsrcPath + "/editundo.png")),
tr("&Undo"), this);
a->setShortcut(QKeySequence::Undo);
tb->addAction(a);
menu->addAction(a);
a = actionRedo = new QAction(QIcon::fromTheme("edit-redo", QIcon(rsrcPath + "/editredo.png")),
tr("&Redo"), this);
a->setPriority(QAction::LowPriority);
a->setShortcut(QKeySequence::Redo);
tb->addAction(a);
menu->addAction(a);
menu->addSeparator();
a = actionCut = new QAction(QIcon::fromTheme("edit-cut", QIcon(rsrcPath + "/editcut.png")),
tr("Cu&t"), this);
a->setPriority(QAction::LowPriority);
a->setShortcut(QKeySequence::Cut);
tb->addAction(a);
menu->addAction(a);
a = actionCopy = new QAction(QIcon::fromTheme("edit-copy", QIcon(rsrcPath + "/editcopy.png")),
tr("&Copy"), this);
a->setPriority(QAction::LowPriority);
a->setShortcut(QKeySequence::Copy);
tb->addAction(a);
menu->addAction(a);
a = actionPaste = new QAction(QIcon::fromTheme("edit-paste", QIcon(rsrcPath + "/editpaste.png")),
tr("&Paste"), this);
a->setPriority(QAction::LowPriority);
a->setShortcut(QKeySequence::Paste);
tb->addAction(a);
menu->addAction(a);
#ifndef QT_NO_CLIPBOARD
if (const QMimeData *md = QApplication::clipboard()->mimeData())
actionPaste->setEnabled(md->hasText());
#endif
}
void TextEdit::setupTextActions()
{
QToolBar *tb = new QToolBar(this);
tb->setWindowTitle(tr("Format Actions"));
addToolBar(tb);
QMenu *menu = new QMenu(tr("F&ormat"), this);
menuBar()->addMenu(menu);
actionTextBold = new QAction(QIcon::fromTheme("format-text-bold", QIcon(rsrcPath + "/textbold.png")),
tr("&Bold"), this);
actionTextBold->setShortcut(Qt::CTRL + Qt::Key_B);
actionTextBold->setPriority(QAction::LowPriority);
QFont bold;
bold.setBold(true);
actionTextBold->setFont(bold);
connect(actionTextBold, SIGNAL(triggered()), this, SLOT(textBold()));
tb->addAction(actionTextBold);
menu->addAction(actionTextBold);
actionTextBold->setCheckable(true);
actionTextItalic = new QAction(QIcon::fromTheme("format-text-italic",
QIcon(rsrcPath + "/textitalic.png")),
tr("&Italic"), this);
actionTextItalic->setPriority(QAction::LowPriority);
actionTextItalic->setShortcut(Qt::CTRL + Qt::Key_I);
QFont italic;
italic.setItalic(true);
actionTextItalic->setFont(italic);
connect(actionTextItalic, SIGNAL(triggered()), this, SLOT(textItalic()));
tb->addAction(actionTextItalic);
menu->addAction(actionTextItalic);
actionTextItalic->setCheckable(true);
actionTextUnderline = new QAction(QIcon::fromTheme("format-text-underline",
QIcon(rsrcPath + "/textunder.png")),
tr("&Underline"), this);
actionTextUnderline->setShortcut(Qt::CTRL + Qt::Key_U);
actionTextUnderline->setPriority(QAction::LowPriority);
QFont underline;
underline.setUnderline(true);
actionTextUnderline->setFont(underline);
connect(actionTextUnderline, SIGNAL(triggered()), this, SLOT(textUnderline()));
tb->addAction(actionTextUnderline);
menu->addAction(actionTextUnderline);
actionTextUnderline->setCheckable(true);
menu->addSeparator();
QActionGroup *grp = new QActionGroup(this);
connect(grp, SIGNAL(triggered(QAction*)), this, SLOT(textAlign(QAction*)));
// Make sure the alignLeft is always left of the alignRight
if (QApplication::isLeftToRight()) {
actionAlignLeft = new QAction(QIcon::fromTheme("format-justify-left",
QIcon(rsrcPath + "/textleft.png")),
tr("&Left"), grp);
actionAlignCenter = new QAction(QIcon::fromTheme("format-justify-center",
QIcon(rsrcPath + "/textcenter.png")),
tr("C&enter"), grp);
actionAlignRight = new QAction(QIcon::fromTheme("format-justify-right",
QIcon(rsrcPath + "/textright.png")),
tr("&Right"), grp);
} else {
actionAlignRight = new QAction(QIcon::fromTheme("format-justify-right",
QIcon(rsrcPath + "/textright.png")),
tr("&Right"), grp);
actionAlignCenter = new QAction(QIcon::fromTheme("format-justify-center",
QIcon(rsrcPath + "/textcenter.png")),
tr("C&enter"), grp);
actionAlignLeft = new QAction(QIcon::fromTheme("format-justify-left",
QIcon(rsrcPath + "/textleft.png")),
tr("&Left"), grp);
}
actionAlignJustify = new QAction(QIcon::fromTheme("format-justify-fill",
QIcon(rsrcPath + "/textjustify.png")),
tr("&Justify"), grp);
actionAlignLeft->setShortcut(Qt::CTRL + Qt::Key_L);
actionAlignLeft->setCheckable(true);
actionAlignLeft->setPriority(QAction::LowPriority);
actionAlignCenter->setShortcut(Qt::CTRL + Qt::Key_E);
actionAlignCenter->setCheckable(true);
actionAlignCenter->setPriority(QAction::LowPriority);
actionAlignRight->setShortcut(Qt::CTRL + Qt::Key_R);
actionAlignRight->setCheckable(true);
actionAlignRight->setPriority(QAction::LowPriority);
actionAlignJustify->setShortcut(Qt::CTRL + Qt::Key_J);
actionAlignJustify->setCheckable(true);
actionAlignJustify->setPriority(QAction::LowPriority);
tb->addActions(grp->actions());
menu->addActions(grp->actions());
menu->addSeparator();
QPixmap pix(16, 16);
pix.fill(Qt::black);
actionTextColor = new QAction(pix, tr("&Color..."), this);
connect(actionTextColor, SIGNAL(triggered()), this, SLOT(textColor()));
tb->addAction(actionTextColor);
menu->addAction(actionTextColor);
tb = new QToolBar(this);
tb->setAllowedAreas(Qt::TopToolBarArea | Qt::BottomToolBarArea);
tb->setWindowTitle(tr("Format Actions"));
addToolBarBreak(Qt::TopToolBarArea);
addToolBar(tb);
comboStyle = new QComboBox(tb);
tb->addWidget(comboStyle);
comboStyle->addItem("Standard");
comboStyle->addItem("Bullet List (Disc)");
comboStyle->addItem("Bullet List (Circle)");
comboStyle->addItem("Bullet List (Square)");
comboStyle->addItem("Ordered List (Decimal)");
comboStyle->addItem("Ordered List (Alpha lower)");
comboStyle->addItem("Ordered List (Alpha upper)");
comboStyle->addItem("Ordered List (Roman lower)");
comboStyle->addItem("Ordered List (Roman upper)");
connect(comboStyle, SIGNAL(activated(int)), this, SLOT(textStyle(int)));
comboFont = new QFontComboBox(tb);
tb->addWidget(comboFont);
connect(comboFont, SIGNAL(activated(QString)), this, SLOT(textFamily(QString)));
comboSize = new QComboBox(tb);
comboSize->setObjectName("comboSize");
tb->addWidget(comboSize);
comboSize->setEditable(true);
QFontDatabase db;
foreach(int size, db.standardSizes())
comboSize->addItem(QString::number(size));
connect(comboSize, SIGNAL(activated(QString)), this, SLOT(textSize(QString)));
comboSize->setCurrentIndex(comboSize->findText(QString::number(QApplication::font()
.pointSize())));
}
bool TextEdit::load(const QString &f)
{
if (!QFile::exists(f))
return false;
QFile file(f);
if (!file.open(QFile::ReadOnly))
return false;
QByteArray data = file.readAll();
QTextCodec *codec = Qt::codecForHtml(data);
QString str = codec->toUnicode(data);
if (Qt::mightBeRichText(str)) {
textEdit->setHtml(str);
} else {
str = QString::fromLocal8Bit(data);
textEdit->setPlainText(str);
}
setCurrentFileName(f);
return true;
}
bool TextEdit::maybeSave()
{
if (!textEdit->document()->isModified())
return true;
if (fileName.startsWith(QLatin1String(":/")))
return true;
QMessageBox::StandardButton ret;
ret = QMessageBox::warning(this, tr("Application"),
tr("The document has been modified.\n"
"Do you want to save your changes?"),
QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
if (ret == QMessageBox::Save)
return fileSave();
else if (ret == QMessageBox::Cancel)
return false;
return true;
}
void TextEdit::setCurrentFileName(const QString &fileName)
{
this->fileName = fileName;
textEdit->document()->setModified(false);
QString shownName;
if (fileName.isEmpty())
shownName = "untitled.txt";
else
shownName = QFileInfo(fileName).fileName();
setWindowTitle(tr("%1[*] - %2").arg(shownName).arg(tr("Rich Text")));
setWindowModified(false);
}
void TextEdit::fileNew()
{
if (maybeSave()) {
textEdit->clear();
setCurrentFileName(QString());
}
}
void TextEdit::fileOpen()
{
QString fn = QFileDialog::getOpenFileName(this, tr("Open File..."),
QString(), tr("HTML-Files (*.htm *.html);;All Files (*)"));
if (!fn.isEmpty())
load(fn);
}
bool TextEdit::fileSave()
{
if (fileName.isEmpty())
return fileSaveAs();
QTextDocumentWriter writer(fileName);
bool success = writer.write(textEdit->document());
if (success)
textEdit->document()->setModified(false);
return success;
}
bool TextEdit::fileSaveAs()
{
QString fn = QFileDialog::getSaveFileName(this, tr("Save as..."), QString(),
tr("ODF files (*.odt);;HTML-Files "
"(*.htm *.html);;All Files (*)"));
if (fn.isEmpty())
return false;
if (!(fn.endsWith(".odt", Qt::CaseInsensitive)
|| fn.endsWith(".htm", Qt::CaseInsensitive)
|| fn.endsWith(".html", Qt::CaseInsensitive))) {
fn += ".odt"; // default
}
setCurrentFileName(fn);
return fileSave();
}
void TextEdit::filePrint()
{
#if !defined(QT_NO_PRINTER) && !defined(QT_NO_PRINTDIALOG)
QPrinter printer(QPrinter::HighResolution);
QPrintDialog *dlg = new QPrintDialog(&printer, this);
if (textEdit->textCursor().hasSelection())
dlg->addEnabledOption(QAbstractPrintDialog::PrintSelection);
dlg->setWindowTitle(tr("Print Document"));
if (dlg->exec() == QDialog::Accepted)
textEdit->print(&printer);
delete dlg;
#endif
}
void TextEdit::filePrintPreview()
{
#if !defined(QT_NO_PRINTER) && !defined(QT_NO_PRINTDIALOG)
QPrinter printer(QPrinter::HighResolution);
QPrintPreviewDialog preview(&printer, this);
connect(&preview, SIGNAL(paintRequested(QPrinter*)), SLOT(printPreview(QPrinter*)));
preview.exec();
#endif
}
void TextEdit::printPreview(QPrinter *printer)
{
#ifdef QT_NO_PRINTER
Q_UNUSED(printer);
#else
textEdit->print(printer);
#endif
}
void TextEdit::filePrintPdf()
{
#ifndef QT_NO_PRINTER
//! [0]
QString fileName = QFileDialog::getSaveFileName(this, "Export PDF",
QString(), "*.pdf");
if (!fileName.isEmpty()) {
if (QFileInfo(fileName).suffix().isEmpty())
fileName.append(".pdf");
QPrinter printer(QPrinter::HighResolution);
printer.setOutputFormat(QPrinter::PdfFormat);
printer.setOutputFileName(fileName);
textEdit->document()->print(&printer);
}
//! [0]
#endif
}
void TextEdit::textBold()
{
QTextCharFormat fmt;
fmt.setFontWeight(actionTextBold->isChecked() ? QFont::Bold : QFont::Normal);
mergeFormatOnWordOrSelection(fmt);
}
void TextEdit::textUnderline()
{
QTextCharFormat fmt;
fmt.setFontUnderline(actionTextUnderline->isChecked());
mergeFormatOnWordOrSelection(fmt);
}
void TextEdit::textItalic()
{
QTextCharFormat fmt;
fmt.setFontItalic(actionTextItalic->isChecked());
mergeFormatOnWordOrSelection(fmt);
}
void TextEdit::textFamily(const QString &f)
{
QTextCharFormat fmt;
fmt.setFontFamily(f);
mergeFormatOnWordOrSelection(fmt);
}
void TextEdit::textSize(const QString &p)
{
qreal pointSize = p.toFloat();
if (p.toFloat() > 0) {
QTextCharFormat fmt;
fmt.setFontPointSize(pointSize);
mergeFormatOnWordOrSelection(fmt);
}
}
void TextEdit::textStyle(int styleIndex)
{
QTextCursor cursor = textEdit->textCursor();
if (styleIndex != 0) {
QTextListFormat::Style style = QTextListFormat::ListDisc;
switch (styleIndex) {
default:
case 1:
style = QTextListFormat::ListDisc;
break;
case 2:
style = QTextListFormat::ListCircle;
break;
case 3:
style = QTextListFormat::ListSquare;
break;
case 4:
style = QTextListFormat::ListDecimal;
break;
case 5:
style = QTextListFormat::ListLowerAlpha;
break;
case 6:
style = QTextListFormat::ListUpperAlpha;
break;
case 7:
style = QTextListFormat::ListLowerRoman;
break;
case 8:
style = QTextListFormat::ListUpperRoman;
break;
}
cursor.beginEditBlock();
QTextBlockFormat blockFmt = cursor.blockFormat();
QTextListFormat listFmt;
if (cursor.currentList()) {
listFmt = cursor.currentList()->format();
} else {
listFmt.setIndent(blockFmt.indent() + 1);
blockFmt.setIndent(0);
cursor.setBlockFormat(blockFmt);
}
listFmt.setStyle(style);
cursor.createList(listFmt);
cursor.endEditBlock();
} else {
// ####
QTextBlockFormat bfmt;
bfmt.setObjectIndex(-1);
cursor.mergeBlockFormat(bfmt);
}
}
void TextEdit::textColor()
{
QColor col = QColorDialog::getColor(textEdit->textColor(), this);
if (!col.isValid())
return;
QTextCharFormat fmt;
fmt.setForeground(col);
mergeFormatOnWordOrSelection(fmt);
colorChanged(col);
}
void TextEdit::textAlign(QAction *a)
{
if (a == actionAlignLeft)
textEdit->setAlignment(Qt::AlignLeft | Qt::AlignAbsolute);
else if (a == actionAlignCenter)
textEdit->setAlignment(Qt::AlignHCenter);
else if (a == actionAlignRight)
textEdit->setAlignment(Qt::AlignRight | Qt::AlignAbsolute);
else if (a == actionAlignJustify)
textEdit->setAlignment(Qt::AlignJustify);
}
void TextEdit::currentCharFormatChanged(const QTextCharFormat &format)
{
fontChanged(format.font());
colorChanged(format.foreground().color());
}
void TextEdit::cursorPositionChanged()
{
alignmentChanged(textEdit->alignment());
}
void TextEdit::clipboardDataChanged()
{
#ifndef QT_NO_CLIPBOARD
if (const QMimeData *md = QApplication::clipboard()->mimeData())
actionPaste->setEnabled(md->hasText());
#endif
}
void TextEdit::about()
{
QMessageBox::about(this, tr("About"), tr("This example demonstrates Qt's "
"rich text editing facilities in action, providing an example "
"document for you to experiment with."));
}
void TextEdit::mergeFormatOnWordOrSelection(const QTextCharFormat &format)
{
QTextCursor cursor = textEdit->textCursor();
if (!cursor.hasSelection())
cursor.select(QTextCursor::WordUnderCursor);
cursor.mergeCharFormat(format);
textEdit->mergeCurrentCharFormat(format);
}
void TextEdit::fontChanged(const QFont &f)
{
comboFont->setCurrentIndex(comboFont->findText(QFontInfo(f).family()));
comboSize->setCurrentIndex(comboSize->findText(QString::number(f.pointSize())));
actionTextBold->setChecked(f.bold());
actionTextItalic->setChecked(f.italic());
actionTextUnderline->setChecked(f.underline());
}
void TextEdit::colorChanged(const QColor &c)
{
QPixmap pix(16, 16);
pix.fill(c);
actionTextColor->setIcon(pix);
}
void TextEdit::alignmentChanged(Qt::Alignment a)
{
if (a & Qt::AlignLeft)
actionAlignLeft->setChecked(true);
else if (a & Qt::AlignHCenter)
actionAlignCenter->setChecked(true);
else if (a & Qt::AlignRight)
actionAlignRight->setChecked(true);
else if (a & Qt::AlignJustify)
actionAlignJustify->setChecked(true);
}
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