diff options
Diffstat (limited to 'examples/painting/transformations/window.cpp')
| -rw-r--r-- | examples/painting/transformations/window.cpp | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/examples/painting/transformations/window.cpp b/examples/painting/transformations/window.cpp new file mode 100644 index 0000000..7d83654 --- /dev/null +++ b/examples/painting/transformations/window.cpp @@ -0,0 +1,181 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, 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 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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] |