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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:18:55 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:18:55 (GMT)
commite5fcad302d86d316390c6b0f62759a067313e8a9 (patch)
treec2afbf6f1066b6ce261f14341cf6d310e5595bc1 /examples/painting/transformations
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Long live Qt 4.5!
Diffstat (limited to 'examples/painting/transformations')
-rw-r--r--examples/painting/transformations/main.cpp52
-rw-r--r--examples/painting/transformations/renderarea.cpp173
-rw-r--r--examples/painting/transformations/renderarea.h91
-rw-r--r--examples/painting/transformations/transformations.pro11
-rw-r--r--examples/painting/transformations/window.cpp181
-rw-r--r--examples/painting/transformations/window.h81
6 files changed, 589 insertions, 0 deletions
diff --git a/examples/painting/transformations/main.cpp b/examples/painting/transformations/main.cpp
new file mode 100644
index 0000000..fa8b0ab
--- /dev/null
+++ b/examples/painting/transformations/main.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** 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 <QApplication>
+
+#include "window.h"
+
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+ Window window;
+ window.show();
+ return app.exec();
+}
diff --git a/examples/painting/transformations/renderarea.cpp b/examples/painting/transformations/renderarea.cpp
new file mode 100644
index 0000000..a25869b
--- /dev/null
+++ b/examples/painting/transformations/renderarea.cpp
@@ -0,0 +1,173 @@
+/****************************************************************************
+**
+** 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 "renderarea.h"
+
+//! [0]
+RenderArea::RenderArea(QWidget *parent)
+ : QWidget(parent)
+{
+ QFont newFont = font();
+ newFont.setPixelSize(12);
+ setFont(newFont);
+
+ QFontMetrics fontMetrics(newFont);
+ xBoundingRect = fontMetrics.boundingRect(tr("x"));
+ yBoundingRect = fontMetrics.boundingRect(tr("y"));
+}
+//! [0]
+
+//! [1]
+void RenderArea::setOperations(const QList<Operation> &operations)
+{
+ this->operations = operations;
+ update();
+}
+//! [1]
+
+//! [2]
+void RenderArea::setShape(const QPainterPath &shape)
+{
+ this->shape = shape;
+ update();
+}
+//! [2]
+
+//! [3]
+QSize RenderArea::minimumSizeHint() const
+{
+ return QSize(182, 182);
+}
+//! [3]
+
+//! [4]
+QSize RenderArea::sizeHint() const
+{
+ return QSize(232, 232);
+}
+//! [4]
+
+//! [5]
+void RenderArea::paintEvent(QPaintEvent *event)
+{
+ QPainter painter(this);
+ painter.setRenderHint(QPainter::Antialiasing);
+ painter.fillRect(event->rect(), QBrush(Qt::white));
+
+ painter.translate(66, 66);
+//! [5]
+
+//! [6]
+ painter.save();
+ transformPainter(painter);
+ drawShape(painter);
+ painter.restore();
+//! [6]
+
+//! [7]
+ drawOutline(painter);
+//! [7]
+
+//! [8]
+ transformPainter(painter);
+ drawCoordinates(painter);
+}
+//! [8]
+
+//! [9]
+void RenderArea::drawCoordinates(QPainter &painter)
+{
+ painter.setPen(Qt::red);
+
+ painter.drawLine(0, 0, 50, 0);
+ painter.drawLine(48, -2, 50, 0);
+ painter.drawLine(48, 2, 50, 0);
+ painter.drawText(60 - xBoundingRect.width() / 2,
+ 0 + xBoundingRect.height() / 2, tr("x"));
+
+ painter.drawLine(0, 0, 0, 50);
+ painter.drawLine(-2, 48, 0, 50);
+ painter.drawLine(2, 48, 0, 50);
+ painter.drawText(0 - yBoundingRect.width() / 2,
+ 60 + yBoundingRect.height() / 2, tr("y"));
+}
+//! [9]
+
+//! [10]
+void RenderArea::drawOutline(QPainter &painter)
+{
+ painter.setPen(Qt::darkGreen);
+ painter.setPen(Qt::DashLine);
+ painter.setBrush(Qt::NoBrush);
+ painter.drawRect(0, 0, 100, 100);
+}
+//! [10]
+
+//! [11]
+void RenderArea::drawShape(QPainter &painter)
+{
+ painter.fillPath(shape, Qt::blue);
+}
+//! [11]
+
+//! [12]
+void RenderArea::transformPainter(QPainter &painter)
+{
+ for (int i = 0; i < operations.size(); ++i) {
+ switch (operations[i]) {
+ case Translate:
+ painter.translate(50, 50);
+ break;
+ case Scale:
+ painter.scale(0.75, 0.75);
+ break;
+ case Rotate:
+ painter.rotate(60);
+ break;
+ case NoTransformation:
+ default:
+ ;
+ }
+ }
+}
+//! [12]
diff --git a/examples/painting/transformations/renderarea.h b/examples/painting/transformations/renderarea.h
new file mode 100644
index 0000000..04ab0d3
--- /dev/null
+++ b/examples/painting/transformations/renderarea.h
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef RENDERAREA_H
+#define RENDERAREA_H
+
+#include <QFont>
+#include <QList>
+#include <QPainterPath>
+#include <QRect>
+#include <QWidget>
+
+QT_BEGIN_NAMESPACE
+class QPaintEvent;
+QT_END_NAMESPACE
+
+//! [0]
+enum Operation { NoTransformation, Translate, Rotate, Scale };
+//! [0]
+
+//! [1]
+class RenderArea : public QWidget
+{
+ Q_OBJECT
+
+public:
+ RenderArea(QWidget *parent = 0);
+
+ void setOperations(const QList<Operation> &operations);
+ void setShape(const QPainterPath &shape);
+
+ QSize minimumSizeHint() const;
+ QSize sizeHint() const;
+
+protected:
+ void paintEvent(QPaintEvent *event);
+//! [1]
+
+//! [2]
+private:
+ void drawCoordinates(QPainter &painter);
+ void drawOutline(QPainter &painter);
+ void drawShape(QPainter &painter);
+ void transformPainter(QPainter &painter);
+
+ QList<Operation> operations;
+ QPainterPath shape;
+ QRect xBoundingRect;
+ QRect yBoundingRect;
+};
+//! [2]
+
+#endif
diff --git a/examples/painting/transformations/transformations.pro b/examples/painting/transformations/transformations.pro
new file mode 100644
index 0000000..a8ff610
--- /dev/null
+++ b/examples/painting/transformations/transformations.pro
@@ -0,0 +1,11 @@
+HEADERS = renderarea.h \
+ window.h
+SOURCES = main.cpp \
+ renderarea.cpp \
+ window.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/painting/transformations
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS transformations.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/painting/transformations
+INSTALLS += target sources
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]
diff --git a/examples/painting/transformations/window.h b/examples/painting/transformations/window.h
new file mode 100644
index 0000000..f4f05d6
--- /dev/null
+++ b/examples/painting/transformations/window.h
@@ -0,0 +1,81 @@
+/****************************************************************************
+**
+** 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef WINDOW_H
+#define WINDOW_H
+
+#include <QList>
+#include <QPainterPath>
+#include <QWidget>
+
+#include "renderarea.h"
+
+QT_BEGIN_NAMESPACE
+class QComboBox;
+QT_END_NAMESPACE
+
+//! [0]
+class Window : public QWidget
+{
+ Q_OBJECT
+
+public:
+ Window();
+
+public slots:
+ void operationChanged();
+ void shapeSelected(int index);
+//! [0]
+
+//! [1]
+private:
+ void setupShapes();
+
+ enum { NumTransformedAreas = 3 };
+ RenderArea *originalRenderArea;
+ RenderArea *transformedRenderAreas[NumTransformedAreas];
+ QComboBox *shapeComboBox;
+ QComboBox *operationComboBoxes[NumTransformedAreas];
+ QList<QPainterPath> shapes;
+};
+//! [1]
+
+#endif