Label,PushButton,ToolButton 实现动态图片按钮，Label显示gif动画

explicit event(QWidget *parent = 0);

~event();

QImage image;

QLabel *label;

QLabel *label2;

QPixmap p2;

QPalette pl;

QIcon icon;

QToolButton *btn;

QPushButton *pb;

public slots:

bool eventFilter(QObject*,QEvent*);

image.load(":/images/x.png");

p2.load(":/images/xx.png");

label = new QLabel(this);

label->setPixmap(QPixmap::fromImage(image));

pb = new QPushButton(this);

pb->setFlat(true);//去边框

icon.addPixmap(p2);

pb->setIcon(icon);//设置背景

pb->setIconSize(p2.size());

/* *********另一种设置背景******

pb->setObjectName("pb");//使以下的作用域只作用于pb

pb->setStyleSheet("QPushButton#pb{border-image:url(:/images/1.png)}QPushButton::pressed#pb{border-image:url(:/images/100.png)}");

*/

btn = new QToolButton (this);

btn->setText("test");

btn->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);//文字与图片下方显示

btn->setIcon(p2);

btn->setAutoRaise(true);//去边框

btn->setIconSize(p2.size());

QGridLayout *lay = new QGridLayout(this);

lay->addWidget(label,0,0);

lay->addWidget(btn,1,1);

lay->addWidget(pb,2,2);

lay->setMargin(10);

/*************控件安装过滤器***********/

label->installEventFilter(this);

pb->installEventFilter(this);

btn->installEventFilter(this);

/*************显示GIF动画****************/

label2= new QLabel(this);

label2->setGeometry(350,50,150,213);

QMovie *movie = new QMovie(":/images/32.gif");

label2->setMovie(movie);

movie->start();

}

bool event::eventFilter(QObject*w,QEvent*e)

{

if(w == label)

{

if(e->type() == QEvent::MouseButtonPress)

{

QMatrix ma;

ma.scale(0.5,0.5);

QImage im = image.transformed(ma);

label->setPixmap(QPixmap::fromImage(im));

}

if(e->type() == QEvent::MouseButtonRelease)

{

label->setPixmap(QPixmap::fromImage(image));

}

}

if(w == btn)

{

if(e->type() == QEvent::MouseButtonPress)

{

QMatrix ma;

ma.scale(0.8,0.8);

QPixmap px = p2.transformed(ma);

icon.addPixmap(px);

btn->setIcon(px);

}

if(e->type() == QEvent::MouseButtonRelease)

{ 

       btn->setIcon(p2);

}

}

if(w ==pb)

{

if(e->type() == QEvent::MouseButtonPress)

{

QMatrix ma;

ma.scale(0.8,0.8);

QPixmap px = p2.transformed(ma);

icon.addPixmap(px);

pb->setIcon(px);

}

if(e->type() == QEvent::MouseButtonRelease)

{ 

pb->setIcon(p2);

}

}

return QDialog::eventFilter(w,e);

}