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diff --git a/demos/chip/view.cpp b/demos/chip/view.cpp
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-/****************************************************************************
-**
-** 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 demonstration applications of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** 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.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "view.h"
-
-#include <QtGui>
-#ifndef QT_NO_OPENGL
-#include <QtOpenGL>
-#endif
-
-#include <qmath.h>
-
-void GraphicsView::wheelEvent(QWheelEvent *e)
-{
- if (e->modifiers() & Qt::ControlModifier) {
- if (e->delta() > 0)
- view->zoomIn(6);
- else
- view->zoomOut(6);
- e->accept();
- } else {
- QGraphicsView::wheelEvent(e);
- }
-}
-
-View::View(const QString &name, QWidget *parent)
- : QFrame(parent)
-{
- setFrameStyle(Sunken | StyledPanel);
- graphicsView = new GraphicsView(this);
- graphicsView->setRenderHint(QPainter::Antialiasing, false);
- graphicsView->setDragMode(QGraphicsView::RubberBandDrag);
- graphicsView->setOptimizationFlags(QGraphicsView::DontSavePainterState);
- graphicsView->setViewportUpdateMode(QGraphicsView::SmartViewportUpdate);
- graphicsView->setTransformationAnchor(QGraphicsView::AnchorUnderMouse);
-
- int size = style()->pixelMetric(QStyle::PM_ToolBarIconSize);
- QSize iconSize(size, size);
-
- QToolButton *zoomInIcon = new QToolButton;
- zoomInIcon->setAutoRepeat(true);
- zoomInIcon->setAutoRepeatInterval(33);
- zoomInIcon->setAutoRepeatDelay(0);
- zoomInIcon->setIcon(QPixmap(":/zoomin.png"));
- zoomInIcon->setIconSize(iconSize);
- QToolButton *zoomOutIcon = new QToolButton;
- zoomOutIcon->setAutoRepeat(true);
- zoomOutIcon->setAutoRepeatInterval(33);
- zoomOutIcon->setAutoRepeatDelay(0);
- zoomOutIcon->setIcon(QPixmap(":/zoomout.png"));
- zoomOutIcon->setIconSize(iconSize);
- zoomSlider = new QSlider;
- zoomSlider->setMinimum(0);
- zoomSlider->setMaximum(500);
- zoomSlider->setValue(250);
- zoomSlider->setTickPosition(QSlider::TicksRight);
-
- // Zoom slider layout
- QVBoxLayout *zoomSliderLayout = new QVBoxLayout;
- zoomSliderLayout->addWidget(zoomInIcon);
- zoomSliderLayout->addWidget(zoomSlider);
- zoomSliderLayout->addWidget(zoomOutIcon);
-
- QToolButton *rotateLeftIcon = new QToolButton;
- rotateLeftIcon->setIcon(QPixmap(":/rotateleft.png"));
- rotateLeftIcon->setIconSize(iconSize);
- QToolButton *rotateRightIcon = new QToolButton;
- rotateRightIcon->setIcon(QPixmap(":/rotateright.png"));
- rotateRightIcon->setIconSize(iconSize);
- rotateSlider = new QSlider;
- rotateSlider->setOrientation(Qt::Horizontal);
- rotateSlider->setMinimum(-360);
- rotateSlider->setMaximum(360);
- rotateSlider->setValue(0);
- rotateSlider->setTickPosition(QSlider::TicksBelow);
-
- // Rotate slider layout
- QHBoxLayout *rotateSliderLayout = new QHBoxLayout;
- rotateSliderLayout->addWidget(rotateLeftIcon);
- rotateSliderLayout->addWidget(rotateSlider);
- rotateSliderLayout->addWidget(rotateRightIcon);
-
- resetButton = new QToolButton;
- resetButton->setText(tr("0"));
- resetButton->setEnabled(false);
-
- // Label layout
- QHBoxLayout *labelLayout = new QHBoxLayout;
- label = new QLabel(name);
- label2 = new QLabel(tr("Pointer Mode"));
- selectModeButton = new QToolButton;
- selectModeButton->setText(tr("Select"));
- selectModeButton->setCheckable(true);
- selectModeButton->setChecked(true);
- dragModeButton = new QToolButton;
- dragModeButton->setText(tr("Drag"));
- dragModeButton->setCheckable(true);
- dragModeButton->setChecked(false);
- antialiasButton = new QToolButton;
- antialiasButton->setText(tr("Antialiasing"));
- antialiasButton->setCheckable(true);
- antialiasButton->setChecked(false);
- openGlButton = new QToolButton;
- openGlButton->setText(tr("OpenGL"));
- openGlButton->setCheckable(true);
-#ifndef QT_NO_OPENGL
- openGlButton->setEnabled(QGLFormat::hasOpenGL());
-#else
- openGlButton->setEnabled(false);
-#endif
- printButton = new QToolButton;
- printButton->setIcon(QIcon(QPixmap(":/fileprint.png")));
-
- QButtonGroup *pointerModeGroup = new QButtonGroup;
- pointerModeGroup->setExclusive(true);
- pointerModeGroup->addButton(selectModeButton);
- pointerModeGroup->addButton(dragModeButton);
-
- labelLayout->addWidget(label);
- labelLayout->addStretch();
- labelLayout->addWidget(label2);
- labelLayout->addWidget(selectModeButton);
- labelLayout->addWidget(dragModeButton);
- labelLayout->addStretch();
- labelLayout->addWidget(antialiasButton);
- labelLayout->addWidget(openGlButton);
- labelLayout->addWidget(printButton);
-
- QGridLayout *topLayout = new QGridLayout;
- topLayout->addLayout(labelLayout, 0, 0);
- topLayout->addWidget(graphicsView, 1, 0);
- topLayout->addLayout(zoomSliderLayout, 1, 1);
- topLayout->addLayout(rotateSliderLayout, 2, 0);
- topLayout->addWidget(resetButton, 2, 1);
- setLayout(topLayout);
-
- connect(resetButton, SIGNAL(clicked()), this, SLOT(resetView()));
- connect(zoomSlider, SIGNAL(valueChanged(int)), this, SLOT(setupMatrix()));
- connect(rotateSlider, SIGNAL(valueChanged(int)), this, SLOT(setupMatrix()));
- connect(graphicsView->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(setResetButtonEnabled()));
- connect(graphicsView->horizontalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(setResetButtonEnabled()));
- connect(selectModeButton, SIGNAL(toggled(bool)), this, SLOT(togglePointerMode()));
- connect(dragModeButton, SIGNAL(toggled(bool)), this, SLOT(togglePointerMode()));
- connect(antialiasButton, SIGNAL(toggled(bool)), this, SLOT(toggleAntialiasing()));
- connect(openGlButton, SIGNAL(toggled(bool)), this, SLOT(toggleOpenGL()));
- connect(rotateLeftIcon, SIGNAL(clicked()), this, SLOT(rotateLeft()));
- connect(rotateRightIcon, SIGNAL(clicked()), this, SLOT(rotateRight()));
- connect(zoomInIcon, SIGNAL(clicked()), this, SLOT(zoomIn()));
- connect(zoomOutIcon, SIGNAL(clicked()), this, SLOT(zoomOut()));
- connect(printButton, SIGNAL(clicked()), this, SLOT(print()));
-
- setupMatrix();
-}
-
-QGraphicsView *View::view() const
-{
- return static_cast<QGraphicsView *>(graphicsView);
-}
-
-void View::resetView()
-{
- zoomSlider->setValue(250);
- rotateSlider->setValue(0);
- setupMatrix();
- graphicsView->ensureVisible(QRectF(0, 0, 0, 0));
-
- resetButton->setEnabled(false);
-}
-
-void View::setResetButtonEnabled()
-{
- resetButton->setEnabled(true);
-}
-
-void View::setupMatrix()
-{
- qreal scale = qPow(qreal(2), (zoomSlider->value() - 250) / qreal(50));
-
- QMatrix matrix;
- matrix.scale(scale, scale);
- matrix.rotate(rotateSlider->value());
-
- graphicsView->setMatrix(matrix);
- setResetButtonEnabled();
-}
-
-void View::togglePointerMode()
-{
- graphicsView->setDragMode(selectModeButton->isChecked()
- ? QGraphicsView::RubberBandDrag
- : QGraphicsView::ScrollHandDrag);
- graphicsView->setInteractive(selectModeButton->isChecked());
-}
-
-void View::toggleOpenGL()
-{
-#ifndef QT_NO_OPENGL
- graphicsView->setViewport(openGlButton->isChecked() ? new QGLWidget(QGLFormat(QGL::SampleBuffers)) : new QWidget);
-#endif
-}
-
-void View::toggleAntialiasing()
-{
- graphicsView->setRenderHint(QPainter::Antialiasing, antialiasButton->isChecked());
-}
-
-void View::print()
-{
-#ifndef QT_NO_PRINTER
- QPrinter printer;
- QPrintDialog dialog(&printer, this);
- if (dialog.exec() == QDialog::Accepted) {
- QPainter painter(&printer);
- graphicsView->render(&painter);
- }
-#endif
-}
-
-void View::zoomIn(int level)
-{
- zoomSlider->setValue(zoomSlider->value() + level);
-}
-
-void View::zoomOut(int level)
-{
- zoomSlider->setValue(zoomSlider->value() - level);
-}
-
-void View::rotateLeft()
-{
- rotateSlider->setValue(rotateSlider->value() - 10);
-}
-
-void View::rotateRight()
-{
- rotateSlider->setValue(rotateSlider->value() + 10);
-}
-
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