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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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** This file is part of the examples of the Qt Toolkit.

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**     the documentation and/or other materials provided with the

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****************************************************************************/

#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);

    }

}