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Diffstat (limited to 'examples/widgets/richtext/textedit/textedit.cpp')
| -rw-r--r-- | examples/widgets/richtext/textedit/textedit.cpp | 897 |
1 files changed, 0 insertions, 897 deletions
diff --git a/examples/widgets/richtext/textedit/textedit.cpp b/examples/widgets/richtext/textedit/textedit.cpp deleted file mode 100644 index 66a3370811..0000000000 --- a/examples/widgets/richtext/textedit/textedit.cpp +++ /dev/null @@ -1,897 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2021 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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 The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "textedit.h" - -#include <QActionGroup> -#include <QApplication> -#include <QClipboard> -#include <QColorDialog> -#include <QComboBox> -#include <QFontComboBox> -#include <QFile> -#include <QFileDialog> -#include <QFileInfo> -#include <QFontDatabase> -#include <QMenu> -#include <QMenuBar> -#include <QTextEdit> -#include <QStatusBar> -#include <QToolBar> -#include <QTextCursor> -#include <QTextDocumentWriter> -#include <QTextList> -#include <QtDebug> -#include <QCloseEvent> -#include <QMessageBox> -#include <QMimeData> -#include <QMimeDatabase> -#if defined(QT_PRINTSUPPORT_LIB) -#include <QtPrintSupport/qtprintsupportglobal.h> -#if QT_CONFIG(printer) -#if QT_CONFIG(printdialog) -#include <QPrintDialog> -#endif -#include <QPrinter> -#if QT_CONFIG(printpreviewdialog) -#include <QPrintPreviewDialog> -#endif -#endif -#endif - -#ifdef Q_OS_MAC -const QString rsrcPath = ":/images/mac"; -#else -const QString rsrcPath = ":/images/win"; -#endif - -TextEdit::TextEdit(QWidget *parent) - : QMainWindow(parent) -{ -#ifdef Q_OS_MACOS - setUnifiedTitleAndToolBarOnMac(true); -#endif - setWindowTitle(QCoreApplication::applicationName()); - - textEdit = new QTextEdit(this); - connect(textEdit, &QTextEdit::currentCharFormatChanged, - this, &TextEdit::currentCharFormatChanged); - connect(textEdit, &QTextEdit::cursorPositionChanged, - this, &TextEdit::cursorPositionChanged); - setCentralWidget(textEdit); - - setToolButtonStyle(Qt::ToolButtonFollowStyle); - setupFileActions(); - setupEditActions(); - setupTextActions(); - - { - QMenu *helpMenu = menuBar()->addMenu(tr("Help")); - helpMenu->addAction(tr("About"), this, &TextEdit::about); - helpMenu->addAction(tr("About &Qt"), qApp, &QApplication::aboutQt); - } - - QFont textFont("Helvetica"); - textFont.setStyleHint(QFont::SansSerif); - textEdit->setFont(textFont); - fontChanged(textEdit->font()); - colorChanged(textEdit->textColor()); - alignmentChanged(textEdit->alignment()); - - auto *document = textEdit->document(); - connect(document, &QTextDocument::modificationChanged, - actionSave, &QAction::setEnabled); - connect(document, &QTextDocument::modificationChanged, - this, &QWidget::setWindowModified); - connect(document, &QTextDocument::undoAvailable, - actionUndo, &QAction::setEnabled); - connect(document, &QTextDocument::redoAvailable, - actionRedo, &QAction::setEnabled); - - setWindowModified(document->isModified()); - actionSave->setEnabled(document->isModified()); - actionUndo->setEnabled(document->isUndoAvailable()); - actionRedo->setEnabled(document->isRedoAvailable()); - -#ifndef QT_NO_CLIPBOARD - actionCut->setEnabled(false); - connect(textEdit, &QTextEdit::copyAvailable, actionCut, &QAction::setEnabled); - actionCopy->setEnabled(false); - connect(textEdit, &QTextEdit::copyAvailable, actionCopy, &QAction::setEnabled); - - connect(QGuiApplication::clipboard(), &QClipboard::dataChanged, - this, &TextEdit::clipboardDataChanged); -#endif - - textEdit->setFocus(); - setCurrentFileName(QString()); - -#ifdef Q_OS_MACOS - // Use dark text on light background on macOS, also in dark mode. - QPalette pal = textEdit->palette(); - pal.setColor(QPalette::Base, QColor(Qt::white)); - pal.setColor(QPalette::Text, QColor(Qt::black)); - textEdit->setPalette(pal); -#endif -} - -void TextEdit::closeEvent(QCloseEvent *e) -{ - if (maybeSave()) - e->accept(); - else - e->ignore(); -} - -void TextEdit::setupFileActions() -{ - QToolBar *tb = addToolBar(tr("File Actions")); - QMenu *menu = menuBar()->addMenu(tr("&File")); - - const QIcon newIcon = QIcon::fromTheme("document-new", QIcon(rsrcPath + "/filenew.png")); - QAction *a = menu->addAction(newIcon, tr("&New"), this, &TextEdit::fileNew); - tb->addAction(a); - a->setPriority(QAction::LowPriority); - a->setShortcut(QKeySequence::New); - - const QIcon openIcon = QIcon::fromTheme("document-open", QIcon(rsrcPath + "/fileopen.png")); - a = menu->addAction(openIcon, tr("&Open..."), this, &TextEdit::fileOpen); - a->setShortcut(QKeySequence::Open); - tb->addAction(a); - - menu->addSeparator(); - - const QIcon saveIcon = QIcon::fromTheme("document-save", QIcon(rsrcPath + "/filesave.png")); - actionSave = menu->addAction(saveIcon, tr("&Save"), this, &TextEdit::fileSave); - actionSave->setShortcut(QKeySequence::Save); - actionSave->setEnabled(false); - tb->addAction(actionSave); - - a = menu->addAction(tr("Save &As..."), this, &TextEdit::fileSaveAs); - a->setPriority(QAction::LowPriority); - menu->addSeparator(); - -#if defined(QT_PRINTSUPPORT_LIB) && QT_CONFIG(printer) - const QIcon printIcon = QIcon::fromTheme("document-print", QIcon(rsrcPath + "/fileprint.png")); - a = menu->addAction(printIcon, tr("&Print..."), this, &TextEdit::filePrint); - a->setPriority(QAction::LowPriority); - a->setShortcut(QKeySequence::Print); - tb->addAction(a); - - const QIcon filePrintIcon = QIcon::fromTheme("fileprint", QIcon(rsrcPath + "/fileprint.png")); - menu->addAction(filePrintIcon, tr("Print Preview..."), this, &TextEdit::filePrintPreview); - - const QIcon exportPdfIcon = QIcon::fromTheme("exportpdf", QIcon(rsrcPath + "/exportpdf.png")); - a = menu->addAction(exportPdfIcon, tr("&Export PDF..."), this, &TextEdit::filePrintPdf); - a->setPriority(QAction::LowPriority); - a->setShortcut(Qt::CTRL | Qt::Key_D); - tb->addAction(a); - - menu->addSeparator(); -#endif - - a = menu->addAction(tr("&Quit"), this, &QWidget::close); - a->setShortcut(Qt::CTRL | Qt::Key_Q); -} - -void TextEdit::setupEditActions() -{ - QToolBar *tb = addToolBar(tr("Edit Actions")); - QMenu *menu = menuBar()->addMenu(tr("&Edit")); - - const QIcon undoIcon = QIcon::fromTheme("edit-undo", QIcon(rsrcPath + "/editundo.png")); - actionUndo = menu->addAction(undoIcon, tr("&Undo"), textEdit, &QTextEdit::undo); - actionUndo->setShortcut(QKeySequence::Undo); - tb->addAction(actionUndo); - - const QIcon redoIcon = QIcon::fromTheme("edit-redo", QIcon(rsrcPath + "/editredo.png")); - actionRedo = menu->addAction(redoIcon, tr("&Redo"), textEdit, &QTextEdit::redo); - actionRedo->setPriority(QAction::LowPriority); - actionRedo->setShortcut(QKeySequence::Redo); - tb->addAction(actionRedo); - menu->addSeparator(); - -#ifndef QT_NO_CLIPBOARD - const QIcon cutIcon = QIcon::fromTheme("edit-cut", QIcon(rsrcPath + "/editcut.png")); - actionCut = menu->addAction(cutIcon, tr("Cu&t"), textEdit, &QTextEdit::cut); - actionCut->setPriority(QAction::LowPriority); - actionCut->setShortcut(QKeySequence::Cut); - tb->addAction(actionCut); - - const QIcon copyIcon = QIcon::fromTheme("edit-copy", QIcon(rsrcPath + "/editcopy.png")); - actionCopy = menu->addAction(copyIcon, tr("&Copy"), textEdit, &QTextEdit::copy); - actionCopy->setPriority(QAction::LowPriority); - actionCopy->setShortcut(QKeySequence::Copy); - tb->addAction(actionCopy); - - const QIcon pasteIcon = QIcon::fromTheme("edit-paste", QIcon(rsrcPath + "/editpaste.png")); - actionPaste = menu->addAction(pasteIcon, tr("&Paste"), textEdit, &QTextEdit::paste); - actionPaste->setPriority(QAction::LowPriority); - actionPaste->setShortcut(QKeySequence::Paste); - tb->addAction(actionPaste); - if (const QMimeData *md = QGuiApplication::clipboard()->mimeData()) - actionPaste->setEnabled(md->hasText()); -#endif -} - -void TextEdit::setupTextActions() -{ - QToolBar *tb = addToolBar(tr("Format Actions")); - QMenu *menu = menuBar()->addMenu(tr("F&ormat")); - - const QIcon boldIcon = QIcon::fromTheme("format-text-bold", QIcon(rsrcPath + "/textbold.png")); - actionTextBold = menu->addAction(boldIcon, tr("&Bold"), this, &TextEdit::textBold); - actionTextBold->setShortcut(Qt::CTRL | Qt::Key_B); - actionTextBold->setPriority(QAction::LowPriority); - QFont bold; - bold.setBold(true); - actionTextBold->setFont(bold); - tb->addAction(actionTextBold); - actionTextBold->setCheckable(true); - - const QIcon italicIcon = QIcon::fromTheme("format-text-italic", QIcon(rsrcPath + "/textitalic.png")); - actionTextItalic = menu->addAction(italicIcon, tr("&Italic"), this, &TextEdit::textItalic); - actionTextItalic->setPriority(QAction::LowPriority); - actionTextItalic->setShortcut(Qt::CTRL | Qt::Key_I); - QFont italic; - italic.setItalic(true); - actionTextItalic->setFont(italic); - tb->addAction(actionTextItalic); - actionTextItalic->setCheckable(true); - - const QIcon underlineIcon = QIcon::fromTheme("format-text-underline", QIcon(rsrcPath + "/textunder.png")); - actionTextUnderline = menu->addAction(underlineIcon, tr("&Underline"), this, &TextEdit::textUnderline); - actionTextUnderline->setShortcut(Qt::CTRL | Qt::Key_U); - actionTextUnderline->setPriority(QAction::LowPriority); - QFont underline; - underline.setUnderline(true); - actionTextUnderline->setFont(underline); - tb->addAction(actionTextUnderline); - actionTextUnderline->setCheckable(true); - - menu->addSeparator(); - - const QIcon leftIcon = QIcon::fromTheme("format-justify-left", QIcon(rsrcPath + "/textleft.png")); - actionAlignLeft = new QAction(leftIcon, tr("&Left"), this); - actionAlignLeft->setShortcut(Qt::CTRL | Qt::Key_L); - actionAlignLeft->setCheckable(true); - actionAlignLeft->setPriority(QAction::LowPriority); - const QIcon centerIcon = QIcon::fromTheme("format-justify-center", QIcon(rsrcPath + "/textcenter.png")); - actionAlignCenter = new QAction(centerIcon, tr("C&enter"), this); - actionAlignCenter->setShortcut(Qt::CTRL | Qt::Key_E); - actionAlignCenter->setCheckable(true); - actionAlignCenter->setPriority(QAction::LowPriority); - const QIcon rightIcon = QIcon::fromTheme("format-justify-right", QIcon(rsrcPath + "/textright.png")); - actionAlignRight = new QAction(rightIcon, tr("&Right"), this); - actionAlignRight->setShortcut(Qt::CTRL | Qt::Key_R); - actionAlignRight->setCheckable(true); - actionAlignRight->setPriority(QAction::LowPriority); - const QIcon fillIcon = QIcon::fromTheme("format-justify-fill", QIcon(rsrcPath + "/textjustify.png")); - actionAlignJustify = new QAction(fillIcon, tr("&Justify"), this); - actionAlignJustify->setShortcut(Qt::CTRL | Qt::Key_J); - actionAlignJustify->setCheckable(true); - actionAlignJustify->setPriority(QAction::LowPriority); - const QIcon indentMoreIcon = QIcon::fromTheme("format-indent-more", QIcon(rsrcPath + "/format-indent-more.png")); - actionIndentMore = menu->addAction(indentMoreIcon, tr("&Indent"), this, &TextEdit::indent); - actionIndentMore->setShortcut(Qt::CTRL | Qt::Key_BracketRight); - actionIndentMore->setPriority(QAction::LowPriority); - const QIcon indentLessIcon = QIcon::fromTheme("format-indent-less", QIcon(rsrcPath + "/format-indent-less.png")); - actionIndentLess = menu->addAction(indentLessIcon, tr("&Unindent"), this, &TextEdit::unindent); - actionIndentLess->setShortcut(Qt::CTRL | Qt::Key_BracketLeft); - actionIndentLess->setPriority(QAction::LowPriority); - - // Make sure the alignLeft is always left of the alignRight - QActionGroup *alignGroup = new QActionGroup(this); - connect(alignGroup, &QActionGroup::triggered, this, &TextEdit::textAlign); - - if (QGuiApplication::isLeftToRight()) { - alignGroup->addAction(actionAlignLeft); - alignGroup->addAction(actionAlignCenter); - alignGroup->addAction(actionAlignRight); - } else { - alignGroup->addAction(actionAlignRight); - alignGroup->addAction(actionAlignCenter); - alignGroup->addAction(actionAlignLeft); - } - alignGroup->addAction(actionAlignJustify); - - tb->addActions(alignGroup->actions()); - menu->addActions(alignGroup->actions()); - tb->addAction(actionIndentMore); - tb->addAction(actionIndentLess); - menu->addAction(actionIndentMore); - menu->addAction(actionIndentLess); - - menu->addSeparator(); - - QPixmap pix(16, 16); - pix.fill(Qt::black); - actionTextColor = menu->addAction(pix, tr("&Color..."), this, &TextEdit::textColor); - tb->addAction(actionTextColor); - - const QIcon underlineColorIcon(rsrcPath + "/textundercolor.png"); - actionUnderlineColor = menu->addAction(underlineColorIcon, tr("Underline color..."), this, &TextEdit::underlineColor); - tb->addAction(actionUnderlineColor); - - menu->addSeparator(); - - const QIcon checkboxIcon = QIcon::fromTheme("status-checkbox-checked", QIcon(rsrcPath + "/checkbox-checked.png")); - actionToggleCheckState = menu->addAction(checkboxIcon, tr("Chec&ked"), this, &TextEdit::setChecked); - actionToggleCheckState->setShortcut(Qt::CTRL | Qt::Key_K); - actionToggleCheckState->setCheckable(true); - actionToggleCheckState->setPriority(QAction::LowPriority); - tb->addAction(actionToggleCheckState); - - tb = addToolBar(tr("Format Actions")); - tb->setAllowedAreas(Qt::TopToolBarArea | Qt::BottomToolBarArea); - addToolBarBreak(Qt::TopToolBarArea); - addToolBar(tb); - - comboStyle = new QComboBox(tb); - tb->addWidget(comboStyle); - comboStyle->addItems({"Standard", - "Bullet List (Disc)", - "Bullet List (Circle)", - "Bullet List (Square)", - "Task List (Unchecked)", - "Task List (Checked)", - "Ordered List (Decimal)", - "Ordered List (Alpha lower)", - "Ordered List (Alpha upper)", - "Ordered List (Roman lower)", - "Ordered List (Roman upper)", - "Heading 1", - "Heading 2", - "Heading 3", - "Heading 4", - "Heading 5", - "Heading 6"}), - - connect(comboStyle, &QComboBox::activated, this, &TextEdit::textStyle); - - comboFont = new QFontComboBox(tb); - tb->addWidget(comboFont); - connect(comboFont, &QComboBox::textActivated, this, &TextEdit::textFamily); - - comboSize = new QComboBox(tb); - comboSize->setObjectName("comboSize"); - tb->addWidget(comboSize); - comboSize->setEditable(true); - - const QList<int> standardSizes = QFontDatabase::standardSizes(); - for (int size : standardSizes) - comboSize->addItem(QString::number(size)); - comboSize->setCurrentIndex(standardSizes.indexOf(QApplication::font().pointSize())); - - connect(comboSize, &QComboBox::textActivated, this, &TextEdit::textSize); -} - -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(); - QMimeDatabase db; - const QString &mimeTypeName = db.mimeTypeForFileNameAndData(f, data).name(); - if (mimeTypeName == u"text/html") { - auto encoding = QStringDecoder::encodingForHtml(data); - QString str = QStringDecoder(encoding ? *encoding : QStringDecoder::Utf8)(data); - QUrl fileUrl = f.startsWith(u':') ? QUrl(f) : QUrl::fromLocalFile(f); - textEdit->document()->setBaseUrl(fileUrl.adjusted(QUrl::RemoveFilename)); - textEdit->setHtml(str); -#if QT_CONFIG(textmarkdownreader) - } else if (mimeTypeName == u"text/markdown") { - textEdit->setMarkdown(QString::fromUtf8(data)); -#endif - } else { - textEdit->setPlainText(QString::fromUtf8(data)); - } - - setCurrentFileName(f); - return true; -} - -bool TextEdit::maybeSave() -{ - if (!textEdit->document()->isModified()) - return true; - - const QMessageBox::StandardButton ret = - QMessageBox::warning(this, QCoreApplication::applicationName(), - 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(); - 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, QCoreApplication::applicationName())); - setWindowModified(false); -} - -void TextEdit::fileNew() -{ - if (maybeSave()) { - textEdit->clear(); - setCurrentFileName({}); - } -} - -void TextEdit::fileOpen() -{ - QFileDialog fileDialog(this, tr("Open File...")); - fileDialog.setAcceptMode(QFileDialog::AcceptOpen); - fileDialog.setFileMode(QFileDialog::ExistingFile); - fileDialog.setMimeTypeFilters({ -#if QT_CONFIG(texthtmlparser) - "text/html", -#endif -#if QT_CONFIG(textmarkdownreader) - - "text/markdown", -#endif - "text/plain"}); - if (fileDialog.exec() != QDialog::Accepted) - return; - const QString fn = fileDialog.selectedFiles().constFirst(); - if (load(fn)) - statusBar()->showMessage(tr("Opened \"%1\"").arg(QDir::toNativeSeparators(fn))); - else - statusBar()->showMessage(tr("Could not open \"%1\"").arg(QDir::toNativeSeparators(fn))); -} - -bool TextEdit::fileSave() -{ - if (fileName.isEmpty() || fileName.startsWith(u":/")) - return fileSaveAs(); - - QTextDocumentWriter writer(fileName); - bool success = writer.write(textEdit->document()); - if (success) { - textEdit->document()->setModified(false); - statusBar()->showMessage(tr("Wrote \"%1\"").arg(QDir::toNativeSeparators(fileName))); - } else { - statusBar()->showMessage(tr("Could not write to file \"%1\"") - .arg(QDir::toNativeSeparators(fileName))); - } - return success; -} - -bool TextEdit::fileSaveAs() -{ - QFileDialog fileDialog(this, tr("Save as...")); - fileDialog.setAcceptMode(QFileDialog::AcceptSave); - QStringList mimeTypes{"text/plain", -#if QT_CONFIG(textodfwriter) - "application/vnd.oasis.opendocument.text", -#endif -#if QT_CONFIG(textmarkdownwriter) - "text/markdown", -#endif - "text/html"}; - fileDialog.setMimeTypeFilters(mimeTypes); -#if QT_CONFIG(textodfwriter) - fileDialog.setDefaultSuffix("odt"); -#endif - if (fileDialog.exec() != QDialog::Accepted) - return false; - const QString fn = fileDialog.selectedFiles().constFirst(); - setCurrentFileName(fn); - return fileSave(); -} - -void TextEdit::filePrint() -{ -#if defined(QT_PRINTSUPPORT_LIB) && QT_CONFIG(printdialog) - QPrinter printer(QPrinter::HighResolution); - QPrintDialog dlg(&printer, this); - if (textEdit->textCursor().hasSelection()) - dlg.setOption(QAbstractPrintDialog::PrintSelection); - dlg.setWindowTitle(tr("Print Document")); - if (dlg.exec() == QDialog::Accepted) - textEdit->print(&printer); -#endif -} - -void TextEdit::filePrintPreview() -{ -#if defined(QT_PRINTSUPPORT_LIB) && QT_CONFIG(printpreviewdialog) - QPrinter printer(QPrinter::HighResolution); - QPrintPreviewDialog preview(&printer, this); - connect(&preview, &QPrintPreviewDialog::paintRequested, textEdit, &QTextEdit::print); - preview.exec(); -#endif -} - -void TextEdit::filePrintPdf() -{ -#if defined(QT_PRINTSUPPORT_LIB) && QT_CONFIG(printer) -//! [0] - QFileDialog fileDialog(this, tr("Export PDF")); - fileDialog.setAcceptMode(QFileDialog::AcceptSave); - fileDialog.setMimeTypeFilters(QStringList("application/pdf")); - fileDialog.setDefaultSuffix("pdf"); - if (fileDialog.exec() != QDialog::Accepted) - return; - QString pdfFileName = fileDialog.selectedFiles().constFirst(); - QPrinter printer(QPrinter::HighResolution); - printer.setOutputFormat(QPrinter::PdfFormat); - printer.setOutputFileName(pdfFileName); - textEdit->document()->print(&printer); - statusBar()->showMessage(tr("Exported \"%1\"") - .arg(QDir::toNativeSeparators(pdfFileName))); -//! [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.setFontFamilies({f}); - mergeFormatOnWordOrSelection(fmt); -} - -void TextEdit::textSize(const QString &p) -{ - qreal pointSize = p.toFloat(); - if (pointSize > 0) { - QTextCharFormat fmt; - fmt.setFontPointSize(pointSize); - mergeFormatOnWordOrSelection(fmt); - } -} - -void TextEdit::textStyle(int styleIndex) -{ - QTextCursor cursor = textEdit->textCursor(); - QTextListFormat::Style style = QTextListFormat::ListStyleUndefined; - QTextBlockFormat::MarkerType marker = QTextBlockFormat::MarkerType::NoMarker; - - switch (styleIndex) { - case 1: - style = QTextListFormat::ListDisc; - break; - case 2: - style = QTextListFormat::ListCircle; - break; - case 3: - style = QTextListFormat::ListSquare; - break; - case 4: - if (cursor.currentList()) - style = cursor.currentList()->format().style(); - else - style = QTextListFormat::ListDisc; - marker = QTextBlockFormat::MarkerType::Unchecked; - break; - case 5: - if (cursor.currentList()) - style = cursor.currentList()->format().style(); - else - style = QTextListFormat::ListDisc; - marker = QTextBlockFormat::MarkerType::Checked; - break; - case 6: - style = QTextListFormat::ListDecimal; - break; - case 7: - style = QTextListFormat::ListLowerAlpha; - break; - case 8: - style = QTextListFormat::ListUpperAlpha; - break; - case 9: - style = QTextListFormat::ListLowerRoman; - break; - case 10: - style = QTextListFormat::ListUpperRoman; - break; - default: - break; - } - - cursor.beginEditBlock(); - - QTextBlockFormat blockFmt = cursor.blockFormat(); - - if (style == QTextListFormat::ListStyleUndefined) { - blockFmt.setObjectIndex(-1); - int headingLevel = styleIndex >= 11 ? styleIndex - 11 + 1 : 0; // H1 to H6, or Standard - blockFmt.setHeadingLevel(headingLevel); - cursor.setBlockFormat(blockFmt); - - int sizeAdjustment = headingLevel ? 4 - headingLevel : 0; // H1 to H6: +3 to -2 - QTextCharFormat fmt; - fmt.setFontWeight(headingLevel ? QFont::Bold : QFont::Normal); - fmt.setProperty(QTextFormat::FontSizeAdjustment, sizeAdjustment); - cursor.select(QTextCursor::LineUnderCursor); - cursor.mergeCharFormat(fmt); - textEdit->mergeCurrentCharFormat(fmt); - } else { - blockFmt.setMarker(marker); - cursor.setBlockFormat(blockFmt); - 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(); -} - -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::underlineColor() -{ - QColor col = QColorDialog::getColor(Qt::black, this); - if (!col.isValid()) - return; - QTextCharFormat fmt; - fmt.setUnderlineColor(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::setChecked(bool checked) -{ - textStyle(checked ? 5 : 4); -} - -void TextEdit::indent() -{ - modifyIndentation(1); -} - -void TextEdit::unindent() -{ - modifyIndentation(-1); -} - -void TextEdit::modifyIndentation(int amount) -{ - QTextCursor cursor = textEdit->textCursor(); - cursor.beginEditBlock(); - if (cursor.currentList()) { - QTextListFormat listFmt = cursor.currentList()->format(); - // See whether the line above is the list we want to move this item into, - // or whether we need a new list. - QTextCursor above(cursor); - above.movePosition(QTextCursor::Up); - if (above.currentList() && listFmt.indent() + amount == above.currentList()->format().indent()) { - above.currentList()->add(cursor.block()); - } else { - listFmt.setIndent(listFmt.indent() + amount); - cursor.createList(listFmt); - } - } else { - QTextBlockFormat blockFmt = cursor.blockFormat(); - blockFmt.setIndent(blockFmt.indent() + amount); - cursor.setBlockFormat(blockFmt); - } - cursor.endEditBlock(); -} - -void TextEdit::currentCharFormatChanged(const QTextCharFormat &format) -{ - fontChanged(format.font()); - colorChanged(format.foreground().color()); -} - -void TextEdit::cursorPositionChanged() -{ - alignmentChanged(textEdit->alignment()); - QTextList *list = textEdit->textCursor().currentList(); - if (list) { - switch (list->format().style()) { - case QTextListFormat::ListDisc: - comboStyle->setCurrentIndex(1); - break; - case QTextListFormat::ListCircle: - comboStyle->setCurrentIndex(2); - break; - case QTextListFormat::ListSquare: - comboStyle->setCurrentIndex(3); - break; - case QTextListFormat::ListDecimal: - comboStyle->setCurrentIndex(6); - break; - case QTextListFormat::ListLowerAlpha: - comboStyle->setCurrentIndex(7); - break; - case QTextListFormat::ListUpperAlpha: - comboStyle->setCurrentIndex(8); - break; - case QTextListFormat::ListLowerRoman: - comboStyle->setCurrentIndex(9); - break; - case QTextListFormat::ListUpperRoman: - comboStyle->setCurrentIndex(10); - break; - default: - comboStyle->setCurrentIndex(-1); - break; - } - switch (textEdit->textCursor().block().blockFormat().marker()) { - case QTextBlockFormat::MarkerType::NoMarker: - actionToggleCheckState->setChecked(false); - break; - case QTextBlockFormat::MarkerType::Unchecked: - comboStyle->setCurrentIndex(4); - actionToggleCheckState->setChecked(false); - break; - case QTextBlockFormat::MarkerType::Checked: - comboStyle->setCurrentIndex(5); - actionToggleCheckState->setChecked(true); - break; - } - } else { - int headingLevel = textEdit->textCursor().blockFormat().headingLevel(); - comboStyle->setCurrentIndex(headingLevel ? headingLevel + 10 : 0); - } -} - -void TextEdit::clipboardDataChanged() -{ -#ifndef QT_NO_CLIPBOARD - if (const QMimeData *md = QGuiApplication::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.testFlag(Qt::AlignLeft)) - actionAlignLeft->setChecked(true); - else if (a.testFlag(Qt::AlignHCenter)) - actionAlignCenter->setChecked(true); - else if (a.testFlag(Qt::AlignRight)) - actionAlignRight->setChecked(true); - else if (a.testFlag(Qt::AlignJustify)) - actionAlignJustify->setChecked(true); -} - |