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/****************************************************************************
**
** Copyright (C) 2014 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 <QtGui>
#include "window.h"
//! [0]
Window::Window()
{
originalRenderArea = new RenderArea;
shapeComboBox = new QComboBox;
shapeComboBox->addItem(tr("Clock"));
shapeComboBox->addItem(tr("House"));
shapeComboBox->addItem(tr("Text"));
shapeComboBox->addItem(tr("Truck"));
QGridLayout *layout = new QGridLayout;
layout->addWidget(originalRenderArea, 0, 0);
layout->addWidget(shapeComboBox, 1, 0);
//! [0]
//! [1]
for (int i = 0; i < NumTransformedAreas; ++i) {
transformedRenderAreas[i] = new RenderArea;
operationComboBoxes[i] = new QComboBox;
operationComboBoxes[i]->addItem(tr("No transformation"));
operationComboBoxes[i]->addItem(tr("Rotate by 60\xB0"));
operationComboBoxes[i]->addItem(tr("Scale to 75%"));
operationComboBoxes[i]->addItem(tr("Translate by (50, 50)"));
connect(operationComboBoxes[i], SIGNAL(activated(int)),
this, SLOT(operationChanged()));
layout->addWidget(transformedRenderAreas[i], 0, i + 1);
layout->addWidget(operationComboBoxes[i], 1, i + 1);
}
//! [1]
//! [2]
setLayout(layout);
setupShapes();
shapeSelected(0);
setWindowTitle(tr("Transformations"));
}
//! [2]
//! [3]
void Window::setupShapes()
{
QPainterPath truck;
//! [3]
truck.setFillRule(Qt::WindingFill);
truck.moveTo(0.0, 87.0);
truck.lineTo(0.0, 60.0);
truck.lineTo(10.0, 60.0);
truck.lineTo(35.0, 35.0);
truck.lineTo(100.0, 35.0);
truck.lineTo(100.0, 87.0);
truck.lineTo(0.0, 87.0);
truck.moveTo(17.0, 60.0);
truck.lineTo(55.0, 60.0);
truck.lineTo(55.0, 40.0);
truck.lineTo(37.0, 40.0);
truck.lineTo(17.0, 60.0);
truck.addEllipse(17.0, 75.0, 25.0, 25.0);
truck.addEllipse(63.0, 75.0, 25.0, 25.0);
//! [4]
QPainterPath clock;
//! [4]
clock.addEllipse(-50.0, -50.0, 100.0, 100.0);
clock.addEllipse(-48.0, -48.0, 96.0, 96.0);
clock.moveTo(0.0, 0.0);
clock.lineTo(-2.0, -2.0);
clock.lineTo(0.0, -42.0);
clock.lineTo(2.0, -2.0);
clock.lineTo(0.0, 0.0);
clock.moveTo(0.0, 0.0);
clock.lineTo(2.732, -0.732);
clock.lineTo(24.495, 14.142);
clock.lineTo(0.732, 2.732);
clock.lineTo(0.0, 0.0);
//! [5]
QPainterPath house;
//! [5]
house.moveTo(-45.0, -20.0);
house.lineTo(0.0, -45.0);
house.lineTo(45.0, -20.0);
house.lineTo(45.0, 45.0);
house.lineTo(-45.0, 45.0);
house.lineTo(-45.0, -20.0);
house.addRect(15.0, 5.0, 20.0, 35.0);
house.addRect(-35.0, -15.0, 25.0, 25.0);
//! [6]
QPainterPath text;
//! [6]
QFont font;
font.setPixelSize(50);
QRect fontBoundingRect = QFontMetrics(font).boundingRect(tr("Qt"));
text.addText(-QPointF(fontBoundingRect.center()), font, tr("Qt"));
//! [7]
shapes.append(clock);
shapes.append(house);
shapes.append(text);
shapes.append(truck);
connect(shapeComboBox, SIGNAL(activated(int)),
this, SLOT(shapeSelected(int)));
}
//! [7]
//! [8]
void Window::operationChanged()
{
static const Operation operationTable[] = {
NoTransformation, Rotate, Scale, Translate
};
QList<Operation> operations;
for (int i = 0; i < NumTransformedAreas; ++i) {
int index = operationComboBoxes[i]->currentIndex();
operations.append(operationTable[index]);
transformedRenderAreas[i]->setOperations(operations);
}
}
//! [8]
//! [9]
void Window::shapeSelected(int index)
{
QPainterPath shape = shapes[index];
originalRenderArea->setShape(shape);
for (int i = 0; i < NumTransformedAreas; ++i)
transformedRenderAreas[i]->setShape(shape);
}
//! [9]
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