Long live Qt 4.5!

1 files changed, 371 insertions, 0 deletions

diff --git a/examples/mainwindows/menus/mainwindow.cpp b/examples/mainwindows/menus/mainwindow.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "mainwindow.h"
+
+//! [0]
+MainWindow::MainWindow()
+{
+    QWidget *widget = new QWidget;
+    setCentralWidget(widget);
+//! [0]
+
+//! [1]
+    QWidget *topFiller = new QWidget;
+    topFiller->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+
+    infoLabel = new QLabel(tr("<i>Choose a menu option, or right-click to "
+                              "invoke a context menu</i>"));
+    infoLabel->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken);
+    infoLabel->setAlignment(Qt::AlignCenter);
+
+    QWidget *bottomFiller = new QWidget;
+    bottomFiller->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+
+    QVBoxLayout *layout = new QVBoxLayout;
+    layout->setMargin(5);
+    layout->addWidget(topFiller);
+    layout->addWidget(infoLabel);
+    layout->addWidget(bottomFiller);
+    widget->setLayout(layout);
+//! [1]
+
+//! [2]
+    createActions();
+    createMenus();
+
+    QString message = tr("A context menu is available by right-clicking");
+    statusBar()->showMessage(message);
+
+    setWindowTitle(tr("Menus"));
+    setMinimumSize(160, 160);
+    resize(480, 320);
+}
+//! [2]
+
+//! [3]
+void MainWindow::contextMenuEvent(QContextMenuEvent *event)
+{
+    QMenu menu(this);
+    menu.addAction(cutAct);
+    menu.addAction(copyAct);
+    menu.addAction(pasteAct);
+    menu.exec(event->globalPos());
+}
+//! [3]
+
+void MainWindow::newFile()
+{
+    infoLabel->setText(tr("Invoked <b>File|New</b>"));
+}
+
+void MainWindow::open()
+{
+    infoLabel->setText(tr("Invoked <b>File|Open</b>"));
+}
+
+void MainWindow::save()
+{
+    infoLabel->setText(tr("Invoked <b>File|Save</b>"));
+}
+
+void MainWindow::print()
+{
+    infoLabel->setText(tr("Invoked <b>File|Print</b>"));
+}
+
+void MainWindow::undo()
+{
+    infoLabel->setText(tr("Invoked <b>Edit|Undo</b>"));
+}
+
+void MainWindow::redo()
+{
+    infoLabel->setText(tr("Invoked <b>Edit|Redo</b>"));
+}
+
+void MainWindow::cut()
+{
+    infoLabel->setText(tr("Invoked <b>Edit|Cut</b>"));
+}
+
+void MainWindow::copy()
+{
+    infoLabel->setText(tr("Invoked <b>Edit|Copy</b>"));
+}
+
+void MainWindow::paste()
+{
+    infoLabel->setText(tr("Invoked <b>Edit|Paste</b>"));
+}
+
+void MainWindow::bold()
+{
+    infoLabel->setText(tr("Invoked <b>Edit|Format|Bold</b>"));
+}
+
+void MainWindow::italic()
+{
+    infoLabel->setText(tr("Invoked <b>Edit|Format|Italic</b>"));
+}
+
+void MainWindow::leftAlign()
+{
+    infoLabel->setText(tr("Invoked <b>Edit|Format|Left Align</b>"));
+}
+
+void MainWindow::rightAlign()
+{
+    infoLabel->setText(tr("Invoked <b>Edit|Format|Right Align</b>"));
+}
+
+void MainWindow::justify()
+{
+    infoLabel->setText(tr("Invoked <b>Edit|Format|Justify</b>"));
+}
+
+void MainWindow::center()
+{
+    infoLabel->setText(tr("Invoked <b>Edit|Format|Center</b>"));
+}
+
+void MainWindow::setLineSpacing()
+{
+    infoLabel->setText(tr("Invoked <b>Edit|Format|Set Line Spacing</b>"));
+}
+
+void MainWindow::setParagraphSpacing()
+{
+    infoLabel->setText(tr("Invoked <b>Edit|Format|Set Paragraph Spacing</b>"));
+}
+
+void MainWindow::about()
+{
+    infoLabel->setText(tr("Invoked <b>Help|About</b>"));
+    QMessageBox::about(this, tr("About Menu"),
+            tr("The <b>Menu</b> example shows how to create "
+               "menu-bar menus and context menus."));
+}
+
+void MainWindow::aboutQt()
+{
+    infoLabel->setText(tr("Invoked <b>Help|About Qt</b>"));
+}
+
+//! [4]
+void MainWindow::createActions()
+{
+//! [5]
+    newAct = new QAction(tr("&New"), this);
+    newAct->setShortcuts(QKeySequence::New);
+    newAct->setStatusTip(tr("Create a new file"));
+    connect(newAct, SIGNAL(triggered()), this, SLOT(newFile()));
+//! [4]
+
+    openAct = new QAction(tr("&Open..."), this);
+    openAct->setShortcuts(QKeySequence::Open);
+    openAct->setStatusTip(tr("Open an existing file"));
+    connect(openAct, SIGNAL(triggered()), this, SLOT(open()));
+//! [5]
+
+    saveAct = new QAction(tr("&Save"), this);
+    saveAct->setShortcuts(QKeySequence::Save);
+    saveAct->setStatusTip(tr("Save the document to disk"));
+    connect(saveAct, SIGNAL(triggered()), this, SLOT(save()));
+
+    printAct = new QAction(tr("&Print..."), this);
+    printAct->setShortcuts(QKeySequence::Print);
+    printAct->setStatusTip(tr("Print the document"));
+    connect(printAct, SIGNAL(triggered()), this, SLOT(print()));
+
+    exitAct = new QAction(tr("E&xit"), this);
+    exitAct->setShortcut(tr("Ctrl+Q"));
+    exitAct->setStatusTip(tr("Exit the application"));
+    connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
+
+    undoAct = new QAction(tr("&Undo"), this);
+    undoAct->setShortcuts(QKeySequence::Undo);
+    undoAct->setStatusTip(tr("Undo the last operation"));
+    connect(undoAct, SIGNAL(triggered()), this, SLOT(undo()));
+
+    redoAct = new QAction(tr("&Redo"), this);
+    redoAct->setShortcuts(QKeySequence::Redo);
+    redoAct->setStatusTip(tr("Redo the last operation"));
+    connect(redoAct, SIGNAL(triggered()), this, SLOT(redo()));
+
+    cutAct = new QAction(tr("Cu&t"), this);
+    cutAct->setShortcuts(QKeySequence::Cut);
+    cutAct->setStatusTip(tr("Cut the current selection's contents to the "
+                            "clipboard"));
+    connect(cutAct, SIGNAL(triggered()), this, SLOT(cut()));
+
+    copyAct = new QAction(tr("&Copy"), this);
+    copyAct->setShortcut(tr("Ctrl+C"));
+    copyAct->setStatusTip(tr("Copy the current selection's contents to the "
+                             "clipboard"));
+    connect(copyAct, SIGNAL(triggered()), this, SLOT(copy()));
+
+    pasteAct = new QAction(tr("&Paste"), this);
+    pasteAct->setShortcuts(QKeySequence::Paste);
+    pasteAct->setStatusTip(tr("Paste the clipboard's contents into the current "
+                              "selection"));
+    connect(pasteAct, SIGNAL(triggered()), this, SLOT(paste()));
+
+    boldAct = new QAction(tr("&Bold"), this);
+    boldAct->setCheckable(true);
+    boldAct->setShortcut(tr("Ctrl+B"));
+    boldAct->setStatusTip(tr("Make the text bold"));
+    connect(boldAct, SIGNAL(triggered()), this, SLOT(bold()));
+
+    QFont boldFont = boldAct->font();
+    boldFont.setBold(true);
+    boldAct->setFont(boldFont);
+
+    italicAct = new QAction(tr("&Italic"), this);
+    italicAct->setCheckable(true);
+    italicAct->setShortcut(tr("Ctrl+I"));
+    italicAct->setStatusTip(tr("Make the text italic"));
+    connect(italicAct, SIGNAL(triggered()), this, SLOT(italic()));
+
+    QFont italicFont = italicAct->font();
+    italicFont.setItalic(true);
+    italicAct->setFont(italicFont);
+
+    setLineSpacingAct = new QAction(tr("Set &Line Spacing..."), this);
+    setLineSpacingAct->setStatusTip(tr("Change the gap between the lines of a "
+                                       "paragraph"));
+    connect(setLineSpacingAct, SIGNAL(triggered()), this, SLOT(setLineSpacing()));
+
+    setParagraphSpacingAct = new QAction(tr("Set &Paragraph Spacing..."), this);
+    setLineSpacingAct->setStatusTip(tr("Change the gap between paragraphs"));
+    connect(setParagraphSpacingAct, SIGNAL(triggered()),
+            this, SLOT(setParagraphSpacing()));
+
+    aboutAct = new QAction(tr("&About"), this);
+    aboutAct->setStatusTip(tr("Show the application's About box"));
+    connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
+
+    aboutQtAct = new QAction(tr("About &Qt"), this);
+    aboutQtAct->setStatusTip(tr("Show the Qt library's About box"));
+    connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
+    connect(aboutQtAct, SIGNAL(triggered()), this, SLOT(aboutQt()));
+
+    leftAlignAct = new QAction(tr("&Left Align"), this);
+    leftAlignAct->setCheckable(true);
+    leftAlignAct->setShortcut(tr("Ctrl+L"));
+    leftAlignAct->setStatusTip(tr("Left align the selected text"));
+    connect(leftAlignAct, SIGNAL(triggered()), this, SLOT(leftAlign()));
+
+    rightAlignAct = new QAction(tr("&Right Align"), this);
+    rightAlignAct->setCheckable(true);
+    rightAlignAct->setShortcut(tr("Ctrl+R"));
+    rightAlignAct->setStatusTip(tr("Right align the selected text"));
+    connect(rightAlignAct, SIGNAL(triggered()), this, SLOT(rightAlign()));
+
+    justifyAct = new QAction(tr("&Justify"), this);
+    justifyAct->setCheckable(true);
+    justifyAct->setShortcut(tr("Ctrl+J"));
+    justifyAct->setStatusTip(tr("Justify the selected text"));
+    connect(justifyAct, SIGNAL(triggered()), this, SLOT(justify()));
+
+    centerAct = new QAction(tr("&Center"), this);
+    centerAct->setCheckable(true);
+    centerAct->setShortcut(tr("Ctrl+E"));
+    centerAct->setStatusTip(tr("Center the selected text"));
+    connect(centerAct, SIGNAL(triggered()), this, SLOT(center()));
+
+//! [6] //! [7]
+    alignmentGroup = new QActionGroup(this);
+    alignmentGroup->addAction(leftAlignAct);
+    alignmentGroup->addAction(rightAlignAct);
+    alignmentGroup->addAction(justifyAct);
+    alignmentGroup->addAction(centerAct);
+    leftAlignAct->setChecked(true);
+//! [6]
+}
+//! [7]
+
+//! [8]
+void MainWindow::createMenus()
+{
+//! [9] //! [10]
+    fileMenu = menuBar()->addMenu(tr("&File"));
+    fileMenu->addAction(newAct);
+//! [9]
+    fileMenu->addAction(openAct);
+//! [10]
+    fileMenu->addAction(saveAct);
+    fileMenu->addAction(printAct);
+//! [11]
+    fileMenu->addSeparator();
+//! [11]
+    fileMenu->addAction(exitAct);
+
+    editMenu = menuBar()->addMenu(tr("&Edit"));
+    editMenu->addAction(undoAct);
+    editMenu->addAction(redoAct);
+    editMenu->addSeparator();
+    editMenu->addAction(cutAct);
+    editMenu->addAction(copyAct);
+    editMenu->addAction(pasteAct);
+    editMenu->addSeparator();
+
+    helpMenu = menuBar()->addMenu(tr("&Help"));
+    helpMenu->addAction(aboutAct);
+    helpMenu->addAction(aboutQtAct);
+//! [8]
+
+//! [12]
+    formatMenu = editMenu->addMenu(tr("&Format"));
+    formatMenu->addAction(boldAct);
+    formatMenu->addAction(italicAct);
+    formatMenu->addSeparator()->setText(tr("Alignment"));
+    formatMenu->addAction(leftAlignAct);
+    formatMenu->addAction(rightAlignAct);
+    formatMenu->addAction(justifyAct);
+    formatMenu->addAction(centerAct);
+    formatMenu->addSeparator();
+    formatMenu->addAction(setLineSpacingAct);
+    formatMenu->addAction(setParagraphSpacingAct);
+}
+//! [12]