src_corelib_animation_qpropertyanimation.cpp

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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
#include <QParallelAnimationGroup>
#include <QSequentialAnimationGroup>
 
//! [includes]
#include <QApplication>
#include <QPushButton>
#include <QPropertyAnimation>
 
//![includes]
 
//! [class_decl]
class MyButtonWidget : public QWidget
{
public:
    MyButtonWidget(QWidget *parent = nullptr);
};
 
//! [class_decl]
 
//! [ctor_impl]
MyButtonWidget::MyButtonWidget(QWidget *parent) : QWidget(parent)
{
//![ctor_impl]
    {
        //! [first_example]
            QPushButton *button = new QPushButton(tr("Animated Button"), this);
            QPropertyAnimation *anim = new QPropertyAnimation(button, "pos", this);
            anim->setDuration(10000);
            anim->setStartValue(QPoint(0, 0));
            anim->setEndValue(QPoint(100, 250));
            anim->start();
        //! [first_example]
    }
 
    {
        //! [easing-curve]
            QPushButton *button = new QPushButton(tr("Animated Button"), this);
            QPropertyAnimation *anim = new QPropertyAnimation(button, "pos", this);
            anim->setDuration(10000);
            anim->setStartValue(QPoint(0, 0));
            anim->setEndValue(QPoint(100, 250));
            anim->setEasingCurve(QEasingCurve::OutBounce);
            anim->start();
        //! [easing-curve]
    }
 
    {
        //! [animation-group1]
            QPushButton *bonnie = new QPushButton(tr("Bonnie"), this);
            QPushButton *clyde = new QPushButton(tr("Clyde"), this);
 
            QPropertyAnimation *anim1 = new QPropertyAnimation(bonnie, "pos", this);
            anim1->setDuration(3000);
            anim1->setStartValue(QPoint(0, 0));
            anim1->setEndValue(QPoint(100, 250));
 
            QPropertyAnimation *anim2 = new QPropertyAnimation(clyde, "pos", this);
            anim2->setDuration(3000);
            anim2->setStartValue(QPoint(100, 250));
            anim2->setEndValue(QPoint(500, 500));
 
            QParallelAnimationGroup *parallelAnim = new QParallelAnimationGroup;
            parallelAnim->addAnimation(anim1);
            parallelAnim->addAnimation(anim2);
            parallelAnim->start();
        //! [animation-group1]
    }
 
    {
        //! [animation-group2]
            QPushButton *bonnie = new QPushButton(tr("Bonnie"), this);
            QPushButton *clyde = new QPushButton(tr("Clyde"), this);
 
            QPropertyAnimation *anim1 = new QPropertyAnimation(bonnie, "pos", this);
            anim1->setDuration(3000);
            anim1->setStartValue(QPoint(0, 0));
            anim1->setEndValue(QPoint(100, 250));
 
            QPropertyAnimation *anim2 = new QPropertyAnimation(clyde, "pos", this);
            anim2->setDuration(3000);
            anim2->setStartValue(QPoint(0, 0));
            anim2->setEndValue(QPoint(200, 250));
 
            QSequentialAnimationGroup *sequenceAnim = new QSequentialAnimationGroup;
            sequenceAnim->addAnimation(anim1);
            sequenceAnim->addAnimation(anim2);
            sequenceAnim->start();
        //! [animation-group2]
    }
 
//! [ctor_close]
}
 
//! [ctor_close]
 
//! [main]
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MyButtonWidget buttonAnimWidget;
    buttonAnimWidget.resize(QSize(800, 600));
    buttonAnimWidget.show();
    return a.exec();
}
//! [main]