83a5694dc2
Qt copyrights are now in The Qt Company, so we could update the source code headers accordingly. In the same go we should also fix the links to point to qt.io. Outdated header.LGPL removed (use header.LGPL21 instead) Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing combination. New header.LGPL-COMM taken in the use file which were using old header.LGPL3 (src/plugins/platforms/android/extract.cpp) Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license combination Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
418 lines
13 KiB
C++
418 lines
13 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd and its Subsidiary(-ies) nor the
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** names of its contributors may be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtWidgets>
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#include "mainwindow.h"
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#include "mdichild.h"
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MainWindow::MainWindow()
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{
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mdiArea = new QMdiArea;
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mdiArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
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mdiArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
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setCentralWidget(mdiArea);
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connect(mdiArea, SIGNAL(subWindowActivated(QMdiSubWindow*)),
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this, SLOT(updateMenus()));
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windowMapper = new QSignalMapper(this);
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connect(windowMapper, SIGNAL(mapped(QWidget*)),
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this, SLOT(setActiveSubWindow(QWidget*)));
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createActions();
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createMenus();
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createToolBars();
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createStatusBar();
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updateMenus();
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readSettings();
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setWindowTitle(tr("MDI"));
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setUnifiedTitleAndToolBarOnMac(true);
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}
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void MainWindow::closeEvent(QCloseEvent *event)
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{
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mdiArea->closeAllSubWindows();
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if (mdiArea->currentSubWindow()) {
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event->ignore();
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} else {
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writeSettings();
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event->accept();
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}
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}
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void MainWindow::newFile()
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{
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MdiChild *child = createMdiChild();
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child->newFile();
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child->show();
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}
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void MainWindow::open()
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{
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QString fileName = QFileDialog::getOpenFileName(this);
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if (!fileName.isEmpty()) {
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QMdiSubWindow *existing = findMdiChild(fileName);
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if (existing) {
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mdiArea->setActiveSubWindow(existing);
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return;
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}
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if (openFile(fileName))
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statusBar()->showMessage(tr("File loaded"), 2000);
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}
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}
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bool MainWindow::openFile(const QString &fileName)
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{
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MdiChild *child = createMdiChild();
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const bool succeeded = child->loadFile(fileName);
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if (succeeded)
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child->show();
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else
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child->close();
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return succeeded;
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}
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void MainWindow::save()
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{
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if (activeMdiChild() && activeMdiChild()->save())
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statusBar()->showMessage(tr("File saved"), 2000);
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}
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void MainWindow::saveAs()
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{
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if (activeMdiChild() && activeMdiChild()->saveAs())
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statusBar()->showMessage(tr("File saved"), 2000);
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}
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#ifndef QT_NO_CLIPBOARD
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void MainWindow::cut()
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{
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if (activeMdiChild())
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activeMdiChild()->cut();
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}
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void MainWindow::copy()
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{
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if (activeMdiChild())
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activeMdiChild()->copy();
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}
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void MainWindow::paste()
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{
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if (activeMdiChild())
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activeMdiChild()->paste();
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}
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#endif
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void MainWindow::about()
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{
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QMessageBox::about(this, tr("About MDI"),
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tr("The <b>MDI</b> example demonstrates how to write multiple "
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"document interface applications using Qt."));
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}
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void MainWindow::updateMenus()
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{
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bool hasMdiChild = (activeMdiChild() != 0);
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saveAct->setEnabled(hasMdiChild);
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saveAsAct->setEnabled(hasMdiChild);
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#ifndef QT_NO_CLIPBOARD
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pasteAct->setEnabled(hasMdiChild);
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#endif
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closeAct->setEnabled(hasMdiChild);
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closeAllAct->setEnabled(hasMdiChild);
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tileAct->setEnabled(hasMdiChild);
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cascadeAct->setEnabled(hasMdiChild);
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nextAct->setEnabled(hasMdiChild);
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previousAct->setEnabled(hasMdiChild);
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separatorAct->setVisible(hasMdiChild);
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#ifndef QT_NO_CLIPBOARD
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bool hasSelection = (activeMdiChild() &&
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activeMdiChild()->textCursor().hasSelection());
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cutAct->setEnabled(hasSelection);
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copyAct->setEnabled(hasSelection);
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#endif
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}
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void MainWindow::updateWindowMenu()
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{
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windowMenu->clear();
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windowMenu->addAction(closeAct);
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windowMenu->addAction(closeAllAct);
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windowMenu->addSeparator();
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windowMenu->addAction(tileAct);
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windowMenu->addAction(cascadeAct);
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windowMenu->addSeparator();
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windowMenu->addAction(nextAct);
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windowMenu->addAction(previousAct);
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windowMenu->addAction(separatorAct);
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QList<QMdiSubWindow *> windows = mdiArea->subWindowList();
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separatorAct->setVisible(!windows.isEmpty());
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for (int i = 0; i < windows.size(); ++i) {
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MdiChild *child = qobject_cast<MdiChild *>(windows.at(i)->widget());
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QString text;
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if (i < 9) {
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text = tr("&%1 %2").arg(i + 1)
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.arg(child->userFriendlyCurrentFile());
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} else {
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text = tr("%1 %2").arg(i + 1)
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.arg(child->userFriendlyCurrentFile());
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}
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QAction *action = windowMenu->addAction(text);
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action->setCheckable(true);
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action ->setChecked(child == activeMdiChild());
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connect(action, SIGNAL(triggered()), windowMapper, SLOT(map()));
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windowMapper->setMapping(action, windows.at(i));
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}
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}
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MdiChild *MainWindow::createMdiChild()
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{
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MdiChild *child = new MdiChild;
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mdiArea->addSubWindow(child);
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#ifndef QT_NO_CLIPBOARD
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connect(child, SIGNAL(copyAvailable(bool)),
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cutAct, SLOT(setEnabled(bool)));
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connect(child, SIGNAL(copyAvailable(bool)),
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copyAct, SLOT(setEnabled(bool)));
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#endif
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return child;
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}
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void MainWindow::createActions()
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{
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newAct = new QAction(QIcon(":/images/new.png"), tr("&New"), this);
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newAct->setShortcuts(QKeySequence::New);
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newAct->setStatusTip(tr("Create a new file"));
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connect(newAct, SIGNAL(triggered()), this, SLOT(newFile()));
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openAct = new QAction(QIcon(":/images/open.png"), tr("&Open..."), this);
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openAct->setShortcuts(QKeySequence::Open);
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openAct->setStatusTip(tr("Open an existing file"));
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connect(openAct, SIGNAL(triggered()), this, SLOT(open()));
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saveAct = new QAction(QIcon(":/images/save.png"), tr("&Save"), this);
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saveAct->setShortcuts(QKeySequence::Save);
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saveAct->setStatusTip(tr("Save the document to disk"));
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connect(saveAct, SIGNAL(triggered()), this, SLOT(save()));
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saveAsAct = new QAction(tr("Save &As..."), this);
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saveAsAct->setShortcuts(QKeySequence::SaveAs);
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saveAsAct->setStatusTip(tr("Save the document under a new name"));
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connect(saveAsAct, SIGNAL(triggered()), this, SLOT(saveAs()));
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//! [0]
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exitAct = new QAction(tr("E&xit"), this);
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exitAct->setShortcuts(QKeySequence::Quit);
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exitAct->setStatusTip(tr("Exit the application"));
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connect(exitAct, SIGNAL(triggered()), qApp, SLOT(closeAllWindows()));
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//! [0]
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#ifndef QT_NO_CLIPBOARD
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cutAct = new QAction(QIcon(":/images/cut.png"), tr("Cu&t"), this);
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cutAct->setShortcuts(QKeySequence::Cut);
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cutAct->setStatusTip(tr("Cut the current selection's contents to the "
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"clipboard"));
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connect(cutAct, SIGNAL(triggered()), this, SLOT(cut()));
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copyAct = new QAction(QIcon(":/images/copy.png"), tr("&Copy"), this);
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copyAct->setShortcuts(QKeySequence::Copy);
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copyAct->setStatusTip(tr("Copy the current selection's contents to the "
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"clipboard"));
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connect(copyAct, SIGNAL(triggered()), this, SLOT(copy()));
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pasteAct = new QAction(QIcon(":/images/paste.png"), tr("&Paste"), this);
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pasteAct->setShortcuts(QKeySequence::Paste);
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pasteAct->setStatusTip(tr("Paste the clipboard's contents into the current "
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"selection"));
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connect(pasteAct, SIGNAL(triggered()), this, SLOT(paste()));
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#endif
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closeAct = new QAction(tr("Cl&ose"), this);
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closeAct->setStatusTip(tr("Close the active window"));
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connect(closeAct, SIGNAL(triggered()),
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mdiArea, SLOT(closeActiveSubWindow()));
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closeAllAct = new QAction(tr("Close &All"), this);
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closeAllAct->setStatusTip(tr("Close all the windows"));
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connect(closeAllAct, SIGNAL(triggered()),
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mdiArea, SLOT(closeAllSubWindows()));
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tileAct = new QAction(tr("&Tile"), this);
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tileAct->setStatusTip(tr("Tile the windows"));
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connect(tileAct, SIGNAL(triggered()), mdiArea, SLOT(tileSubWindows()));
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cascadeAct = new QAction(tr("&Cascade"), this);
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cascadeAct->setStatusTip(tr("Cascade the windows"));
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connect(cascadeAct, SIGNAL(triggered()), mdiArea, SLOT(cascadeSubWindows()));
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nextAct = new QAction(tr("Ne&xt"), this);
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nextAct->setShortcuts(QKeySequence::NextChild);
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nextAct->setStatusTip(tr("Move the focus to the next window"));
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connect(nextAct, SIGNAL(triggered()),
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mdiArea, SLOT(activateNextSubWindow()));
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previousAct = new QAction(tr("Pre&vious"), this);
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previousAct->setShortcuts(QKeySequence::PreviousChild);
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previousAct->setStatusTip(tr("Move the focus to the previous "
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"window"));
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connect(previousAct, SIGNAL(triggered()),
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mdiArea, SLOT(activatePreviousSubWindow()));
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separatorAct = new QAction(this);
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separatorAct->setSeparator(true);
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aboutAct = new QAction(tr("&About"), this);
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aboutAct->setStatusTip(tr("Show the application's About box"));
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connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
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aboutQtAct = new QAction(tr("About &Qt"), this);
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aboutQtAct->setStatusTip(tr("Show the Qt library's About box"));
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connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
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}
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void MainWindow::createMenus()
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{
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fileMenu = menuBar()->addMenu(tr("&File"));
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fileMenu->addAction(newAct);
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fileMenu->addAction(openAct);
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fileMenu->addAction(saveAct);
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fileMenu->addAction(saveAsAct);
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fileMenu->addSeparator();
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QAction *action = fileMenu->addAction(tr("Switch layout direction"));
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connect(action, SIGNAL(triggered()), this, SLOT(switchLayoutDirection()));
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fileMenu->addAction(exitAct);
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editMenu = menuBar()->addMenu(tr("&Edit"));
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#ifndef QT_NO_CLIPBOARD
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editMenu->addAction(cutAct);
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editMenu->addAction(copyAct);
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editMenu->addAction(pasteAct);
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#endif
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windowMenu = menuBar()->addMenu(tr("&Window"));
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updateWindowMenu();
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connect(windowMenu, SIGNAL(aboutToShow()), this, SLOT(updateWindowMenu()));
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menuBar()->addSeparator();
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helpMenu = menuBar()->addMenu(tr("&Help"));
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helpMenu->addAction(aboutAct);
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helpMenu->addAction(aboutQtAct);
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}
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void MainWindow::createToolBars()
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{
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fileToolBar = addToolBar(tr("File"));
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fileToolBar->addAction(newAct);
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fileToolBar->addAction(openAct);
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fileToolBar->addAction(saveAct);
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#ifndef QT_NO_CLIPBOARD
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editToolBar = addToolBar(tr("Edit"));
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editToolBar->addAction(cutAct);
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editToolBar->addAction(copyAct);
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editToolBar->addAction(pasteAct);
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#endif
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}
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void MainWindow::createStatusBar()
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{
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statusBar()->showMessage(tr("Ready"));
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}
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void MainWindow::readSettings()
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{
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QSettings settings("QtProject", "MDI Example");
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QPoint pos = settings.value("pos", QPoint(200, 200)).toPoint();
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QSize size = settings.value("size", QSize(400, 400)).toSize();
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move(pos);
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resize(size);
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}
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void MainWindow::writeSettings()
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{
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QSettings settings("QtProject", "MDI Example");
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settings.setValue("pos", pos());
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settings.setValue("size", size());
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}
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MdiChild *MainWindow::activeMdiChild()
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{
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if (QMdiSubWindow *activeSubWindow = mdiArea->activeSubWindow())
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return qobject_cast<MdiChild *>(activeSubWindow->widget());
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return 0;
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}
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QMdiSubWindow *MainWindow::findMdiChild(const QString &fileName)
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{
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QString canonicalFilePath = QFileInfo(fileName).canonicalFilePath();
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foreach (QMdiSubWindow *window, mdiArea->subWindowList()) {
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MdiChild *mdiChild = qobject_cast<MdiChild *>(window->widget());
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if (mdiChild->currentFile() == canonicalFilePath)
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return window;
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}
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return 0;
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}
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void MainWindow::switchLayoutDirection()
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{
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if (layoutDirection() == Qt::LeftToRight)
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qApp->setLayoutDirection(Qt::RightToLeft);
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else
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qApp->setLayoutDirection(Qt::LeftToRight);
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}
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void MainWindow::setActiveSubWindow(QWidget *window)
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{
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if (!window)
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return;
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mdiArea->setActiveSubWindow(qobject_cast<QMdiSubWindow *>(window));
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}
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