diff options
author | Gabriel de Dietrich <gabriel.dietrich-de@nokia.com> | 2012-08-17 13:23:19 +0200 |
---|---|---|
committer | Qt by Nokia <qt-info@nokia.com> | 2012-08-20 12:20:55 +0200 |
commit | 806dda08d685bc5f9ed71dfe8b61f21848d48066 (patch) | |
tree | a63533a1c4a335ae17adc105abb0ae4e62e2f26e /examples/widgets/animation/moveblocks/main.cpp | |
parent | 9f942014e31842b512c3198de035d041c59f54a9 (diff) |
Moving .qdoc files under examples/widgets/doc
Updated those .qdoc files to refer to the new relative examples
emplacement. Images and snippets to be moved later.
Also grouped all widgets related examples under widgets.
Change-Id: Ib29696e2d8948524537f53e8dda88f9ee26a597f
Reviewed-by: J-P Nurmi <j-p.nurmi@nokia.com>
Diffstat (limited to 'examples/widgets/animation/moveblocks/main.cpp')
-rw-r--r-- | examples/widgets/animation/moveblocks/main.cpp | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/examples/widgets/animation/moveblocks/main.cpp b/examples/widgets/animation/moveblocks/main.cpp new file mode 100644 index 0000000000..d807bb63d9 --- /dev/null +++ b/examples/widgets/animation/moveblocks/main.cpp @@ -0,0 +1,321 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtCore module 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 <QtCore> +#include <QtWidgets> + +//![15] +class StateSwitchEvent: public QEvent +{ +public: + StateSwitchEvent() + : QEvent(Type(StateSwitchType)) + { + } + + explicit StateSwitchEvent(int rand) + : QEvent(Type(StateSwitchType)), + m_rand(rand) + { + } + + enum { StateSwitchType = QEvent::User + 256 }; + + int rand() const { return m_rand; } + +private: + int m_rand; +}; +//![15] + +//![16] +class QGraphicsRectWidget : public QGraphicsWidget +{ +public: + void paint(QPainter *painter, const QStyleOptionGraphicsItem *, + QWidget *) + { + painter->fillRect(rect(), Qt::blue); + } +}; +//![16] + +class StateSwitchTransition: public QAbstractTransition +{ +public: + StateSwitchTransition(int rand) + : QAbstractTransition(), + m_rand(rand) + { + } + +protected: +//![14] + virtual bool eventTest(QEvent *event) + { + return (event->type() == QEvent::Type(StateSwitchEvent::StateSwitchType)) + && (static_cast<StateSwitchEvent *>(event)->rand() == m_rand); + } +//![14] + + virtual void onTransition(QEvent *) {} + +private: + int m_rand; +}; + +//![10] +class StateSwitcher : public QState +{ + Q_OBJECT +public: + StateSwitcher(QStateMachine *machine) + : QState(machine), m_stateCount(0), m_lastIndex(0) + { } +//![10] + +//![11] + virtual void onEntry(QEvent *) + { + int n; + while ((n = (qrand() % m_stateCount + 1)) == m_lastIndex) + { } + m_lastIndex = n; + machine()->postEvent(new StateSwitchEvent(n)); + } + virtual void onExit(QEvent *) {} +//![11] + +//![12] + void addState(QState *state, QAbstractAnimation *animation) { + StateSwitchTransition *trans = new StateSwitchTransition(++m_stateCount); + trans->setTargetState(state); + addTransition(trans); + trans->addAnimation(animation); + } +//![12] + +private: + int m_stateCount; + int m_lastIndex; +}; + +//![13] +QState *createGeometryState(QObject *w1, const QRect &rect1, + QObject *w2, const QRect &rect2, + QObject *w3, const QRect &rect3, + QObject *w4, const QRect &rect4, + QState *parent) +{ + QState *result = new QState(parent); + result->assignProperty(w1, "geometry", rect1); + result->assignProperty(w2, "geometry", rect2); + result->assignProperty(w3, "geometry", rect3); + result->assignProperty(w4, "geometry", rect4); + + return result; +} +//![13] + + +class GraphicsView : public QGraphicsView +{ + Q_OBJECT +public: + GraphicsView(QGraphicsScene *scene, QWidget *parent = NULL) : QGraphicsView(scene, parent) + { + } + +protected: + virtual void resizeEvent(QResizeEvent *event) + { + fitInView(scene()->sceneRect()); + QGraphicsView::resizeEvent(event); + } +}; + + +int main(int argc, char **argv) +{ + QApplication app(argc, argv); + +//![1] + QGraphicsRectWidget *button1 = new QGraphicsRectWidget; + QGraphicsRectWidget *button2 = new QGraphicsRectWidget; + QGraphicsRectWidget *button3 = new QGraphicsRectWidget; + QGraphicsRectWidget *button4 = new QGraphicsRectWidget; + button2->setZValue(1); + button3->setZValue(2); + button4->setZValue(3); + QGraphicsScene scene(0, 0, 300, 300); + scene.setBackgroundBrush(Qt::black); + scene.addItem(button1); + scene.addItem(button2); + scene.addItem(button3); + scene.addItem(button4); +//![1] + GraphicsView window(&scene); + window.setFrameStyle(0); + window.setAlignment(Qt::AlignLeft | Qt::AlignTop); + window.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); + window.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); +//![2] + QStateMachine machine; + + QState *group = new QState(); + group->setObjectName("group"); + QTimer timer; + timer.setInterval(1250); + timer.setSingleShot(true); + QObject::connect(group, SIGNAL(entered()), &timer, SLOT(start())); +//![2] + +//![3] + QState *state1; + QState *state2; + QState *state3; + QState *state4; + QState *state5; + QState *state6; + QState *state7; + + state1 = createGeometryState(button1, QRect(100, 0, 50, 50), + button2, QRect(150, 0, 50, 50), + button3, QRect(200, 0, 50, 50), + button4, QRect(250, 0, 50, 50), + group); +//![3] + state2 = createGeometryState(button1, QRect(250, 100, 50, 50), + button2, QRect(250, 150, 50, 50), + button3, QRect(250, 200, 50, 50), + button4, QRect(250, 250, 50, 50), + group); + state3 = createGeometryState(button1, QRect(150, 250, 50, 50), + button2, QRect(100, 250, 50, 50), + button3, QRect(50, 250, 50, 50), + button4, QRect(0, 250, 50, 50), + group); + state4 = createGeometryState(button1, QRect(0, 150, 50, 50), + button2, QRect(0, 100, 50, 50), + button3, QRect(0, 50, 50, 50), + button4, QRect(0, 0, 50, 50), + group); + state5 = createGeometryState(button1, QRect(100, 100, 50, 50), + button2, QRect(150, 100, 50, 50), + button3, QRect(100, 150, 50, 50), + button4, QRect(150, 150, 50, 50), + group); + state6 = createGeometryState(button1, QRect(50, 50, 50, 50), + button2, QRect(200, 50, 50, 50), + button3, QRect(50, 200, 50, 50), + button4, QRect(200, 200, 50, 50), + group); +//![4] + state7 = createGeometryState(button1, QRect(0, 0, 50, 50), + button2, QRect(250, 0, 50, 50), + button3, QRect(0, 250, 50, 50), + button4, QRect(250, 250, 50, 50), + group); + group->setInitialState(state1); +//![4] + +//![5] + QParallelAnimationGroup animationGroup; + QSequentialAnimationGroup *subGroup; + + QPropertyAnimation *anim = new QPropertyAnimation(button4, "geometry"); + anim->setDuration(1000); + anim->setEasingCurve(QEasingCurve::OutElastic); + animationGroup.addAnimation(anim); +//![5] + +//![6] + subGroup = new QSequentialAnimationGroup(&animationGroup); + subGroup->addPause(100); + anim = new QPropertyAnimation(button3, "geometry"); + anim->setDuration(1000); + anim->setEasingCurve(QEasingCurve::OutElastic); + subGroup->addAnimation(anim); +//![6] + + subGroup = new QSequentialAnimationGroup(&animationGroup); + subGroup->addPause(150); + anim = new QPropertyAnimation(button2, "geometry"); + anim->setDuration(1000); + anim->setEasingCurve(QEasingCurve::OutElastic); + subGroup->addAnimation(anim); + + subGroup = new QSequentialAnimationGroup(&animationGroup); + subGroup->addPause(200); + anim = new QPropertyAnimation(button1, "geometry"); + anim->setDuration(1000); + anim->setEasingCurve(QEasingCurve::OutElastic); + subGroup->addAnimation(anim); + +//![7] + StateSwitcher *stateSwitcher = new StateSwitcher(&machine); + stateSwitcher->setObjectName("stateSwitcher"); + group->addTransition(&timer, SIGNAL(timeout()), stateSwitcher); + stateSwitcher->addState(state1, &animationGroup); + stateSwitcher->addState(state2, &animationGroup); +//![7] + stateSwitcher->addState(state3, &animationGroup); + stateSwitcher->addState(state4, &animationGroup); + stateSwitcher->addState(state5, &animationGroup); + stateSwitcher->addState(state6, &animationGroup); +//![8] + stateSwitcher->addState(state7, &animationGroup); +//![8] + +//![9] + machine.addState(group); + machine.setInitialState(group); + machine.start(); +//![9] + + window.resize(300, 300); + window.show(); + + qsrand(QTime(0,0,0).secsTo(QTime::currentTime())); + + return app.exec(); +} + +#include "main.moc" |