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

.h文件

public:

    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*);

.cpp文件

 

    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);

}