mainwindow.cpp Example File

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#include <QtWidgets> #if defined(QT_PRINTSUPPORT_LIB) #include <QtPrintSupport/qtprintsupportglobal.h> #if QT_CONFIG(printdialog) #include <QtPrintSupport> #endif #endif #include "mainwindow.h" MainWindow::MainWindow() : textEdit(new QTextEdit) { setCentralWidget(textEdit); createActions(); createStatusBar(); createDockWindows(); setWindowTitle(tr("Dock Widgets")); newLetter(); setUnifiedTitleAndToolBarOnMac(true); } void MainWindow::newLetter() { textEdit->clear(); QTextCursor cursor(textEdit->textCursor()); cursor.movePosition(QTextCursor::Start); QTextFrame *topFrame = cursor.currentFrame(); QTextFrameFormat topFrameFormat = topFrame->frameFormat(); topFrameFormat.setPadding(16); topFrame->setFrameFormat(topFrameFormat); QTextCharFormat textFormat; QTextCharFormat boldFormat; boldFormat.setFontWeight(QFont::Bold); QTextCharFormat italicFormat; italicFormat.setFontItalic(true); QTextTableFormat tableFormat; tableFormat.setBorder(1); tableFormat.setCellPadding(16); tableFormat.setAlignment(Qt::AlignRight); cursor.insertTable(1, 1, tableFormat); cursor.insertText("The Firm", boldFormat); cursor.insertBlock(); cursor.insertText("321 City Street", textFormat); cursor.insertBlock(); cursor.insertText("Industry Park"); cursor.insertBlock(); cursor.insertText("Some Country"); cursor.setPosition(topFrame->lastPosition()); cursor.insertText(QDate::currentDate().toString("d MMMM yyyy"), textFormat); cursor.insertBlock(); cursor.insertBlock(); cursor.insertText("Dear ", textFormat); cursor.insertText("NAME", italicFormat); cursor.insertText(",", textFormat); for (int i = 0; i < 3; ++i) cursor.insertBlock(); cursor.insertText(tr("Yours sincerely,"), textFormat); for (int i = 0; i < 3; ++i) cursor.insertBlock(); cursor.insertText("The Boss", textFormat); cursor.insertBlock(); cursor.insertText("ADDRESS", italicFormat); } void MainWindow::print() { #if QT_CONFIG(printdialog) QTextDocument *document = textEdit->document(); QPrinter printer; QPrintDialog dlg(&printer, this); if (dlg.exec() != QDialog::Accepted) { return; } document->print(&printer); statusBar()->showMessage(tr("Ready"), 2000); #endif } void MainWindow::save() { QMimeDatabase mimeDatabase; QString fileName = QFileDialog::getSaveFileName(this, tr("Choose a file name"), ".", mimeDatabase.mimeTypeForName("text/html").filterString()); if (fileName.isEmpty()) return; QFile file(fileName); if (! | QFile::Text)) { QMessageBox::warning(this, tr("Dock Widgets"), tr("Cannot write file %1:\n%2.") .arg(QDir::toNativeSeparators(fileName), file.errorString())); return; } QTextStream out(&file); QApplication::setOverrideCursor(Qt::WaitCursor); out << textEdit->toHtml(); QApplication::restoreOverrideCursor(); statusBar()->showMessage(tr("Saved '%1'").arg(fileName), 2000); } void MainWindow::undo() { QTextDocument *document = textEdit->document(); document->undo(); } void MainWindow::insertCustomer(const QString &customer) { if (customer.isEmpty()) return; QStringList customerList = customer.split(", "); QTextDocument *document = textEdit->document(); QTextCursor cursor = document->find("NAME"); if (!cursor.isNull()) { cursor.beginEditBlock(); cursor.insertText(; QTextCursor oldcursor = cursor; cursor = document->find("ADDRESS"); if (!cursor.isNull()) { for (int i = 1; i < customerList.size(); ++i) { cursor.insertBlock(); cursor.insertText(; } cursor.endEditBlock(); } else oldcursor.endEditBlock(); } } void MainWindow::addParagraph(const QString &paragraph) { if (paragraph.isEmpty()) return; QTextDocument *document = textEdit->document(); QTextCursor cursor = document->find(tr("Yours sincerely,")); if (cursor.isNull()) return; cursor.beginEditBlock(); cursor.movePosition(QTextCursor::PreviousBlock, QTextCursor::MoveAnchor, 2); cursor.insertBlock(); cursor.insertText(paragraph); cursor.insertBlock(); cursor.endEditBlock(); } void MainWindow::about() { QMessageBox::about(this, tr("About Dock Widgets"), tr("The <b>Dock Widgets</b> example demonstrates how to " "use Qt's dock widgets. You can enter your own text, " "click a customer to add a customer name and " "address, and click standard paragraphs to add them.")); } void MainWindow::createActions() { QMenu *fileMenu = menuBar()->addMenu(tr("&File")); QToolBar *fileToolBar = addToolBar(tr("File")); const QIcon newIcon = QIcon::fromTheme("document-new", QIcon(":/images/new.png")); QAction *newLetterAct = new QAction(newIcon, tr("&New Letter"), this); newLetterAct->setShortcuts(QKeySequence::New); newLetterAct->setStatusTip(tr("Create a new form letter")); connect(newLetterAct, &QAction::triggered, this, &MainWindow::newLetter); fileMenu->addAction(newLetterAct); fileToolBar->addAction(newLetterAct); const QIcon saveIcon = QIcon::fromTheme("document-save", QIcon(":/images/save.png")); QAction *saveAct = new QAction(saveIcon, tr("&Save..."), this); saveAct->setShortcuts(QKeySequence::Save); saveAct->setStatusTip(tr("Save the current form letter")); connect(saveAct, &QAction::triggered, this, &MainWindow::save); fileMenu->addAction(saveAct); fileToolBar->addAction(saveAct); const QIcon printIcon = QIcon::fromTheme("document-print", QIcon(":/images/print.png")); QAction *printAct = new QAction(printIcon, tr("&Print..."), this); printAct->setShortcuts(QKeySequence::Print); printAct->setStatusTip(tr("Print the current form letter")); connect(printAct, &QAction::triggered, this, &MainWindow::print); fileMenu->addAction(printAct); fileToolBar->addAction(printAct); fileMenu->addSeparator(); QAction *quitAct = fileMenu->addAction(tr("&Quit"), this, &QWidget::close); quitAct->setShortcuts(QKeySequence::Quit); quitAct->setStatusTip(tr("Quit the application")); QMenu *editMenu = menuBar()->addMenu(tr("&Edit")); QToolBar *editToolBar = addToolBar(tr("Edit")); const QIcon undoIcon = QIcon::fromTheme("edit-undo", QIcon(":/images/undo.png")); QAction *undoAct = new QAction(undoIcon, tr("&Undo"), this); undoAct->setShortcuts(QKeySequence::Undo); undoAct->setStatusTip(tr("Undo the last editing action")); connect(undoAct, &QAction::triggered, this, &MainWindow::undo); editMenu->addAction(undoAct); editToolBar->addAction(undoAct); viewMenu = menuBar()->addMenu(tr("&View")); menuBar()->addSeparator(); QMenu *helpMenu = menuBar()->addMenu(tr("&Help")); QAction *aboutAct = helpMenu->addAction(tr("&About"), this, &MainWindow::about); aboutAct->setStatusTip(tr("Show the application's About box")); QAction *aboutQtAct = helpMenu->addAction(tr("About &Qt"), qApp, &QApplication::aboutQt); aboutQtAct->setStatusTip(tr("Show the Qt library's About box")); } void MainWindow::createStatusBar() { statusBar()->showMessage(tr("Ready")); } void MainWindow::createDockWindows() { QDockWidget *dock = new QDockWidget(tr("Customers"), this); dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea); customerList = new QListWidget(dock); customerList->addItems(QStringList() << "John Doe, Harmony Enterprises, 12 Lakeside, Ambleton" << "Jane Doe, Memorabilia, 23 Watersedge, Beaton" << "Tammy Shea, Tiblanka, 38 Sea Views, Carlton" << "Tim Sheen, Caraba Gifts, 48 Ocean Way, Deal" << "Sol Harvey, Chicos Coffee, 53 New Springs, Eccleston" << "Sally Hobart, Tiroli Tea, 67 Long River, Fedula"); dock->setWidget(customerList); addDockWidget(Qt::RightDockWidgetArea, dock); viewMenu->addAction(dock->toggleViewAction()); dock = new QDockWidget(tr("Paragraphs"), this); paragraphsList = new QListWidget(dock); paragraphsList->addItems(QStringList() << "Thank you for your payment which we have received today." << "Your order has been dispatched and should be with you " "within 28 days." << "We have dispatched those items that were in stock. The " "rest of your order will be dispatched once all the " "remaining items have arrived at our warehouse. No " "additional shipping charges will be made." << "You made a small overpayment (less than $5) which we " "will keep on account for you, or return at your request." << "You made a small underpayment (less than $1), but we have " "sent your order anyway. We'll add this underpayment to " "your next bill." << "Unfortunately you did not send enough money. Please remit " "an additional $. Your order will be dispatched as soon as " "the complete amount has been received." << "You made an overpayment (more than $5). Do you wish to " "buy more items, or should we return the excess to you?"); dock->setWidget(paragraphsList); addDockWidget(Qt::RightDockWidgetArea, dock); viewMenu->addAction(dock->toggleViewAction()); connect(customerList, &QListWidget::currentTextChanged, this, &MainWindow::insertCustomer); connect(paragraphsList, &QListWidget::currentTextChanged, this, &MainWindow::addParagraph); }

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