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Diffstat (limited to 'examples/widgets/richtext/textedit/textedit.cpp')
| -rw-r--r-- | examples/widgets/richtext/textedit/textedit.cpp | 737 |
1 files changed, 737 insertions, 0 deletions
diff --git a/examples/widgets/richtext/textedit/textedit.cpp b/examples/widgets/richtext/textedit/textedit.cpp new file mode 100644 index 0000000000..0be60230ca --- /dev/null +++ b/examples/widgets/richtext/textedit/textedit.cpp @@ -0,0 +1,737 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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, Nokia gives you certain additional +** rights. These rights are described in the Nokia 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. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "textedit.h" + +#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 + +#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() +{ +#ifndef QT_NO_PRINTER + 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() +{ +#ifndef QT_NO_PRINTER + 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); + } +} + |