svgviewer.rar_The Program_qt svg_svg_svg qt

/**************************************************************************** ** ** Copyright (C) 2011 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. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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 Nokia Corporation 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); } }