2011-04-27 10:05:43 +00:00
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/****************************************************************************
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**
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2012-01-05 04:03:39 +00:00
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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2011-04-27 10:05:43 +00:00
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** All rights reserved.
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2012-01-20 03:06:31 +00:00
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** Contact: http://www.qt-project.org/
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2011-04-27 10:05:43 +00:00
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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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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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2011-05-24 09:34:08 +00:00
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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2011-04-27 10:05:43 +00:00
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**
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** In addition, as a special exception, Nokia gives you certain additional
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2011-05-24 09:34:08 +00:00
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** rights. These rights are described in the Nokia Qt LGPL Exception
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2011-04-27 10:05:43 +00:00
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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2011-05-24 09:34:08 +00:00
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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2011-04-27 10:05:43 +00:00
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QDebug>
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#include <QApplication>
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#include <QGraphicsLinearLayout>
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#ifndef QT_NO_OPENGL
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#include <QGLWidget>
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#endif
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#include <QObject>
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#include "button.h"
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#include "label.h"
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#include "menu.h"
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#include "topbar.h"
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#include "backgrounditem.h"
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#include "theme.h"
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#include "mainview.h"
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#include "gvbwidget.h"
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MainView::MainView(const bool enableOpenGL, const bool outputFps, const bool imageRendering, QWidget *parent)
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: QGraphicsView(parent)
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, m_scene(0)
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, m_mainLayout(0)
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, m_mainWidget(0)
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, m_testWidget(0)
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, m_imageBasedRendering(imageRendering)
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, m_pixmapToRender(0)
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, m_OutputFps(outputFps)
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, m_fpsUpdated()
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, m_Fpss()
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, m_angle(0)
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, m_enableOpenGL(enableOpenGL)
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{
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construct();
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}
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MainView::~MainView()
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{
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if (!m_scene->parent())
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delete m_scene;
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delete m_pixmapToRender;
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}
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void MainView::setTestWidget(QGraphicsWidget *testWidget)
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{
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if (!testWidget)
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return;
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if (m_testWidget) {
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m_mainLayout->removeItem(m_testWidget);
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if (!m_testWidget->parent() && !m_testWidget->parentLayoutItem())
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delete m_testWidget;
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}
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m_testWidget = testWidget;
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m_mainLayout->addItem(m_testWidget);
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resizeContent(size());
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}
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QGraphicsWidget *MainView::takeTestWidget()
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{
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if (m_testWidget) {
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m_mainLayout->removeItem(m_testWidget);
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QGraphicsWidget *tmp = m_testWidget;
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m_testWidget = 0;
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return tmp;
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}
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return 0;
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}
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QGraphicsWidget *MainView::testWidget()
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{
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return m_testWidget;
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}
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void MainView::setImageBasedRendering(const bool imageBasedRendering)
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{
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m_imageBasedRendering = imageBasedRendering;
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delete m_pixmapToRender;
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m_pixmapToRender = 0;
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viewport()->update();
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}
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bool MainView::imageBasedRendering() const
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{
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return m_imageBasedRendering;
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}
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qreal MainView::fps()
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{
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if (m_Fpss.count() <= 0)
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updateFps();
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if (m_Fpss.count() <= 0)
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return 0.0;
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qreal sum = 0;
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int count = m_Fpss.count();
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for (int i = 0; i<count; ++i)
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sum += m_Fpss.at(i);
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m_Fpss.clear();
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fpsReset();
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return sum/qreal(count);
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}
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void MainView::fpsReset()
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{
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m_frameCount = 0;
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m_fpsFirstTs.start();
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m_fpsLatestTs = m_fpsFirstTs;
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m_fpsUpdated.start();
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}
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void MainView::rotateContent(int angle)
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{
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bool portrait = ((m_angle+angle)%90 == 0) && ((m_angle+angle)%180 != 0);
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bool landscape = ((m_angle+angle)%180 == 0);
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if (!portrait && !landscape)
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return;
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m_angle = (m_angle + angle)%360;
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rotate(angle);
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resizeContent(size());
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}
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int MainView::rotationAngle() const
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{
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return m_angle;
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}
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void MainView::resizeContent(const QSize &s)
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{
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QSizeF l_size(s);
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QSizeF p_size(l_size.height(), l_size.width());
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bool portrait = (m_angle%90 == 0) && (m_angle%180 != 0);
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if (portrait) {
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m_mainWidget->resize(p_size);
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m_backGround->resize(p_size);
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}
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else {
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m_mainWidget->resize(l_size);
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m_backGround->resize(l_size);
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}
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m_menu->setPos(m_topBar->getStatusBarLocation());
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setSceneRect(QRectF(m_mainWidget->pos(), m_mainWidget->size()));
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}
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void MainView::resizeEvent(QResizeEvent * event)
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{
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QGraphicsView::resizeEvent(event);
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resizeContent(event->size());
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}
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void MainView::paintEvent (QPaintEvent *event)
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{
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if (m_imageBasedRendering) {
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if (!m_pixmapToRender)
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m_pixmapToRender = new QPixmap(size());
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if (m_pixmapToRender->size() != size()) {
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delete m_pixmapToRender;
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m_pixmapToRender = new QPixmap(size());
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}
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QPainter p(m_pixmapToRender);
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render(&p);
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p.end();
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}
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else {
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QGraphicsView::paintEvent(event);
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}
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if (!m_OutputFps)
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emit repainted();
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m_frameCount++;
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m_fpsLatestTs.start();
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if(m_fpsUpdated.elapsed() > 2000) {
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updateFps();
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m_fpsUpdated.start();
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}
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}
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void MainView::keyPressEvent(QKeyEvent *event)
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{
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if (event->key() == Qt::Key_F) {
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if (isFullScreen())
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showNormal();
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else
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showFullScreen();
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}
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//S60 3.x specific
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if(m_menu->menuVisible()) {
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m_menu->keyPressEvent(event);
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return;
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}
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if(event->key() == 16777235 ) { //Up Arrow
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GvbWidget* widget = qobject_cast<GvbWidget*>(m_testWidget);
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if(widget)
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widget->keyPressEvent(event);
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}
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if(event->key() == 16777237 ) { //Down Arrow
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GvbWidget* widget = qobject_cast<GvbWidget*>(m_testWidget);
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if(widget)
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widget->keyPressEvent(event);
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}
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if(event->key() == 17825792 ) { //LSK
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if(!m_menu->menuVisible())
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m_menu->menuShowHide();
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}
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if(event->key() == 17825793 ) { //RSK
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QApplication::quit();
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}
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}
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void MainView::construct()
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{
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m_scene = new QGraphicsScene;
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#ifndef QT_NO_OPENGL
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if (m_enableOpenGL) {
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qDebug() << "OpenGL enabled";
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m_scene->setSortCacheEnabled(false);
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setViewport(new QGLWidget);
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// Qt doc says: This is the preferred update mode for
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// viewports that do not support partial updates, such as QGLWidget...
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setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
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} else
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#endif
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setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
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setScene(m_scene);
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m_scene->setItemIndexMethod(QGraphicsScene::NoIndex);
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//setCacheMode(QGraphicsView::CacheBackground);
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setAlignment(Qt::AlignLeft | Qt::AlignTop);
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// Turn off automatic background
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setAttribute(Qt::WA_OpaquePaintEvent);
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setAttribute(Qt::WA_NoBackground);
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setAttribute(Qt::WA_NoSystemBackground);
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setAutoFillBackground(false);
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//Background
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m_backGround = new BackgroundItem("background.svg");
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m_scene->addItem(m_backGround);
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m_backGround->setZValue(0);
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//Menu
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m_menu = new Menu(this);
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m_scene->addItem(m_menu); //Add menu to the scene directly
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m_menu->setZValue(10); //Bring to front
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m_mainLayout = new QGraphicsLinearLayout(Qt::Vertical);
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m_mainLayout->setContentsMargins(0,0,0,0);
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m_mainLayout->setSpacing(0);
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m_mainWidget = new QGraphicsWidget;
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m_mainWidget->setLayout(m_mainLayout);
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m_mainWidget->setZValue(1);
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m_scene->addItem(m_mainWidget);
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//Topbar
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m_topBar = new TopBar(this, 0);
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m_mainLayout->addItem(m_topBar);
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m_topBar->setZValue(1);
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connect(m_topBar, SIGNAL(clicked(bool)), m_menu, SLOT(menuShowHide()));
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setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setContentsMargins(0,0,0,0);
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setViewportMargins(0,0,0,0);
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setFrameShape(QFrame::NoFrame);
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fpsReset();
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m_fpsUpdated.start();
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}
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void MainView::updateFps()
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{
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int msecs = m_fpsFirstTs.msecsTo(m_fpsLatestTs);
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qreal fps = 0;
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if (msecs > 0) {
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fps = m_frameCount * 1000.0 / msecs;
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if (m_OutputFps)
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qDebug() << "FPS: " << fps;
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m_Fpss.append(fps);
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}
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m_fpsFirstTs = m_fpsLatestTs;
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m_frameCount = 0;
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}
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Menu *MainView::menu()
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{
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return m_menu;
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}
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