Imported svgviewer from qt4.8

This is from commit 543486a41963f8d20d9771d2107cdd5a22894bdb in the
Qt git repository: git://gitorious.org/qt/qt.git

1 files changed, 163 insertions, 0 deletions

diff --git a/libs/svgviewer/mainwindow.cpp b/libs/svgviewer/mainwindow.cpp
new file mode 100644
index 00000000..7d4d303e
--- /dev/null
+++ b/libs/svgviewer/mainwindow.cpp
@@ -0,0 +1,163 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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 Digia Plc and its Subsidiary(-ies) 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 "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);
+    }
+}