diff options
Diffstat (limited to 'examples/declarative/tutorials/extending/chapter2-methods')
5 files changed, 299 insertions, 0 deletions
diff --git a/examples/declarative/tutorials/extending/chapter2-methods/app.qml b/examples/declarative/tutorials/extending/chapter2-methods/app.qml new file mode 100644 index 0000000000..e2f34c7f7b --- /dev/null +++ b/examples/declarative/tutorials/extending/chapter2-methods/app.qml @@ -0,0 +1,66 @@ +/**************************************************************************** +** +** 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 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 Nokia Corporation 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." +** $QT_END_LICENSE$ +** +****************************************************************************/ +//![0] +import Charts 1.0 +import QtQuick 1.0 + +Item { + width: 300; height: 200 + + PieChart { + id: aPieChart + anchors.centerIn: parent + width: 100; height: 100 + color: "red" + + onChartCleared: console.log("The chart has been cleared") + } + + MouseArea { + anchors.fill: parent + onClicked: aPieChart.clearChart() + } + + Text { + anchors { bottom: parent.bottom; horizontalCenter: parent.horizontalCenter; bottomMargin: 20 } + text: "Click anywhere to clear the chart" + } +} +//![0] diff --git a/examples/declarative/tutorials/extending/chapter2-methods/chapter2-methods.pro b/examples/declarative/tutorials/extending/chapter2-methods/chapter2-methods.pro new file mode 100644 index 0000000000..0f0416718c --- /dev/null +++ b/examples/declarative/tutorials/extending/chapter2-methods/chapter2-methods.pro @@ -0,0 +1,5 @@ +QT += declarative + +HEADERS += piechart.h +SOURCES += piechart.cpp \ + main.cpp diff --git a/examples/declarative/tutorials/extending/chapter2-methods/main.cpp b/examples/declarative/tutorials/extending/chapter2-methods/main.cpp new file mode 100644 index 0000000000..2ab2e2b8b9 --- /dev/null +++ b/examples/declarative/tutorials/extending/chapter2-methods/main.cpp @@ -0,0 +1,57 @@ +/**************************************************************************** +** +** 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 documentation 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 Nokia Corporation 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." +** $QT_END_LICENSE$ +** +****************************************************************************/ +//![0] +#include "piechart.h" +#include <qdeclarative.h> +#include <QDeclarativeView> +#include <QApplication> + +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + + qmlRegisterType<PieChart>("Charts", 1, 0, "PieChart"); + + QDeclarativeView view; + view.setSource(QUrl::fromLocalFile("app.qml")); + view.show(); + return app.exec(); +} +//![0] diff --git a/examples/declarative/tutorials/extending/chapter2-methods/piechart.cpp b/examples/declarative/tutorials/extending/chapter2-methods/piechart.cpp new file mode 100644 index 0000000000..78970e536f --- /dev/null +++ b/examples/declarative/tutorials/extending/chapter2-methods/piechart.cpp @@ -0,0 +1,87 @@ +/**************************************************************************** +** +** 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 documentation 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 Nokia Corporation 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 "piechart.h" +#include <QPainter> +#include <QDebug> + +PieChart::PieChart(QDeclarativeItem *parent) + : QDeclarativeItem(parent) +{ + // need to disable this flag to draw inside a QDeclarativeItem + setFlag(QGraphicsItem::ItemHasNoContents, false); +} + +QString PieChart::name() const +{ + return m_name; +} + +void PieChart::setName(const QString &name) +{ + m_name = name; +} + +QColor PieChart::color() const +{ + return m_color; +} + +void PieChart::setColor(const QColor &color) +{ + m_color = color; +} + +void PieChart::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) +{ + QPen pen(m_color, 2); + painter->setPen(pen); + painter->setRenderHints(QPainter::Antialiasing, true); + painter->drawPie(boundingRect(), 90 * 16, 290 * 16); +} + +//![0] +void PieChart::clearChart() +{ + setColor(QColor(Qt::transparent)); + update(); + + emit chartCleared(); +} +//![0] diff --git a/examples/declarative/tutorials/extending/chapter2-methods/piechart.h b/examples/declarative/tutorials/extending/chapter2-methods/piechart.h new file mode 100644 index 0000000000..bfcbd80ab1 --- /dev/null +++ b/examples/declarative/tutorials/extending/chapter2-methods/piechart.h @@ -0,0 +1,84 @@ +/**************************************************************************** +** +** 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 documentation 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 Nokia Corporation 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." +** $QT_END_LICENSE$ +** +****************************************************************************/ +#ifndef PIECHART_H +#define PIECHART_H + +#include <QDeclarativeItem> +#include <QColor> + +//![0] +class PieChart : public QDeclarativeItem +{ +//![0] + Q_OBJECT + Q_PROPERTY(QString name READ name WRITE setName) + Q_PROPERTY(QColor color READ color WRITE setColor) + +//![1] +public: +//![1] + + PieChart(QDeclarativeItem *parent = 0); + + QString name() const; + void setName(const QString &name); + + QColor color() const; + void setColor(const QColor &color); + + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0); + +//![2] + Q_INVOKABLE void clearChart(); + +signals: + void chartCleared(); +//![2] + +private: + QString m_name; + QColor m_color; + +//![3] +}; +//![3] + +#endif + |