我尝试使用QPropertyAnimation对工具按钮进行动画处理。然而,它什么也没做。我做错了什么吗?谁能帮忙?
ToolBarPalettes.h:
class ToolBarPalettes : public QToolBar
{
public:
ToolBarPalettes(void);
~ToolBarPalettes(void);
public slots:
void startAnimation();
private:
createButtons();
QToolButton *animatedButton;
}
工具栏调色板.cpp:
ToolBarPalettes::ToolBarPalettes(void)
{
createButtons();
connect(animatedButton, SIGNAL(clicked()), this, SLOT(startAnimation()));
}
void ToolBarPalettes::createButtons()
{
animatedButton = new QToolButton;
animatedButton->setText("Animate!");
addWidget(animatedButton);
}
void ToolBarPalettes::startAnimation()
{
QPropertyAnimation *animation = new QPropertyAnimation(animatedButton, "geometry");
animation->setDuration(3000);
animation->setStartValue(QRect(this->x(), this->y(), this->width(), this->height()));
animation->setEndValue(QRect(this->x(), this->y(), 10, 10));
animation->setEasingCurve::OutBounce);
animation->start(QAbstractAnimation::DeleteWhenStopped);
}
你应该使用 minimumSize
、 maximumSize
或 size
属性而不是 geometry
属性。
animation = new QPropertyAnimation(animatedButton, "minimumSize");
然后设置值:
animation->setStartValue(animatedButton->minimumSize());
animation->setEndValue(QSize(100,100));
geometry
属性仅适用于布局中未包含的顶级窗口和小部件。