examples/painting/svgviewer/mainwindow.cpp
changeset 0 1918ee327afb
child 3 41300fa6a67c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/painting/svgviewer/mainwindow.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,164 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "mainwindow.h"
+
+#include <QtGui>
+
+#include "svgview.h"
+
+MainWindow::MainWindow()
+    : QMainWindow()
+    , m_view(new SvgView)
+{
+    QMenu *fileMenu = new QMenu(tr("&File"), this);
+    QAction *openAction = fileMenu->addAction(tr("&Open..."));
+    openAction->setShortcut(QKeySequence(tr("Ctrl+O")));
+    QAction *quitAction = fileMenu->addAction(tr("E&xit"));
+    quitAction->setShortcuts(QKeySequence::Quit);
+
+    menuBar()->addMenu(fileMenu);
+
+    QMenu *viewMenu = new QMenu(tr("&View"), this);
+    m_backgroundAction = viewMenu->addAction(tr("&Background"));
+    m_backgroundAction->setEnabled(false);
+    m_backgroundAction->setCheckable(true);
+    m_backgroundAction->setChecked(false);
+    connect(m_backgroundAction, SIGNAL(toggled(bool)), m_view, SLOT(setViewBackground(bool)));
+
+    m_outlineAction = viewMenu->addAction(tr("&Outline"));
+    m_outlineAction->setEnabled(false);
+    m_outlineAction->setCheckable(true);
+    m_outlineAction->setChecked(true);
+    connect(m_outlineAction, SIGNAL(toggled(bool)), m_view, SLOT(setViewOutline(bool)));
+
+    menuBar()->addMenu(viewMenu);
+
+    QMenu *rendererMenu = new QMenu(tr("&Renderer"), this);
+    m_nativeAction = rendererMenu->addAction(tr("&Native"));
+    m_nativeAction->setCheckable(true);
+    m_nativeAction->setChecked(true);
+#ifndef QT_NO_OPENGL
+    m_glAction = rendererMenu->addAction(tr("&OpenGL"));
+    m_glAction->setCheckable(true);
+#endif
+    m_imageAction = rendererMenu->addAction(tr("&Image"));
+    m_imageAction->setCheckable(true);
+
+#ifndef QT_NO_OPENGL
+    rendererMenu->addSeparator();
+    m_highQualityAntialiasingAction = rendererMenu->addAction(tr("&High Quality Antialiasing"));
+    m_highQualityAntialiasingAction->setEnabled(false);
+    m_highQualityAntialiasingAction->setCheckable(true);
+    m_highQualityAntialiasingAction->setChecked(false);
+    connect(m_highQualityAntialiasingAction, SIGNAL(toggled(bool)), m_view, SLOT(setHighQualityAntialiasing(bool)));
+#endif
+
+    QActionGroup *rendererGroup = new QActionGroup(this);
+    rendererGroup->addAction(m_nativeAction);
+#ifndef QT_NO_OPENGL
+    rendererGroup->addAction(m_glAction);
+#endif
+    rendererGroup->addAction(m_imageAction);
+
+    menuBar()->addMenu(rendererMenu);
+
+    connect(openAction, SIGNAL(triggered()), this, SLOT(openFile()));
+    connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
+    connect(rendererGroup, SIGNAL(triggered(QAction *)),
+            this, SLOT(setRenderer(QAction *)));
+
+    setCentralWidget(m_view);
+    setWindowTitle(tr("SVG Viewer"));
+}
+
+void MainWindow::openFile(const QString &path)
+{
+    QString fileName;
+    if (path.isNull())
+        fileName = QFileDialog::getOpenFileName(this, tr("Open SVG File"),
+                m_currentPath, "SVG files (*.svg *.svgz *.svg.gz)");
+    else
+        fileName = path;
+
+    if (!fileName.isEmpty()) {
+        QFile file(fileName);
+        if (!file.exists()) {
+            QMessageBox::critical(this, tr("Open SVG File"),
+                           QString("Could not open file '%1'.").arg(fileName));
+
+            m_outlineAction->setEnabled(false);
+            m_backgroundAction->setEnabled(false);
+            return;
+        }
+
+        m_view->openFile(file);
+
+        if (!fileName.startsWith(":/")) {
+            m_currentPath = fileName;
+            setWindowTitle(tr("%1 - SVGViewer").arg(m_currentPath));
+        }
+
+        m_outlineAction->setEnabled(true);
+        m_backgroundAction->setEnabled(true);
+
+        resize(m_view->sizeHint() + QSize(80, 80 + menuBar()->height()));
+    }
+}
+
+void MainWindow::setRenderer(QAction *action)
+{
+#ifndef QT_NO_OPENGL
+    m_highQualityAntialiasingAction->setEnabled(false);
+#endif
+
+    if (action == m_nativeAction)
+        m_view->setRenderer(SvgView::Native);
+#ifndef QT_NO_OPENGL
+    else if (action == m_glAction) {
+        m_highQualityAntialiasingAction->setEnabled(true);
+        m_view->setRenderer(SvgView::OpenGL);
+    }
+#endif
+    else if (action == m_imageAction) {
+        m_view->setRenderer(SvgView::Image);
+    }
+}