如何在Qt5中的QToolButton上设置GIF图像

时间:2014-04-17 13:00:52

标签: c++ windows qt5 gif

我想在"GIF"上显示QToolButton图片。

目前,我将QMovie设为QLable并隐藏QLable以显示QToolButton

我还尝试使用样式表设置gif,但失败了。

但是,是否可以将动画图像(.gif)直接显示到QToolButton

请指导我。

提前致谢。

2 个答案:

答案 0 :(得分:0)

#include <QtGui>
#include <QToolButton>

class TOOTBtn : public QToolButton
{
    Q_OBJECT
public:
    TOOTBtn(const QString &imgPath, const QString &label, QWidget *parent = 0)
        : QToolButton(parent), _label(label)
    {
        if (!imgPath.isEmpty()) {
            _movie = new QMovie(imgPath, QByteArray(), this);
            connect(_movie, SIGNAL(frameChanged(int)), this, SLOT(iconChged(int)));
            _movie->start();
        }

    }

    private slots:
    void iconChged(int) {

        QTextDocument Text;
        Text.setHtml(_label);

        QPixmap currFrame = _movie->currentPixmap();
        QPixmap pixmap(Text.size().width(), currFrame.height());
        pixmap.fill(Qt::transparent);
        QPainter painter(&pixmap);
        painter.drawPixmap((pixmap.width() - currFrame.width()) / 2,
            (pixmap.height() - currFrame.height()) / 2, currFrame);
        Text.drawContents(&painter, pixmap.rect());

        setIcon(QIcon(pixmap));
        setIconSize(pixmap.rect().size());
    }

private:
    QMovie *_movie;
    QString _label;

};


#include "main.moc"
#include <QApplication>
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QWidget window;
    QString TOOTLabel = QObject::tr("<h2><i>Hello</i> <font color=red>TOOTzoe.com</font></h2>"
        "<b>Animating Button Test....<b>");
    TOOTBtn btn("a.gif", TOOTLabel, &window);
    btn.move(100, 100);
    window.show();
    window.resize(640, 400);
    window.setWindowTitle("Animating Button Test....");
    QObject::connect(&btn, SIGNAL(clicked()), &window, SLOT(close()));

    return app.exec();
}

答案 1 :(得分:-1)

QMovie*fan_gif=new QMovie("://png/gif/fan.gif");
QSize MovSize(48, 48);
fan_gif->setScaledSize(MovSize);
QLabel*pLabel = new QLabel(ui->toolButton_fan_1);
pLabel->setMovie(fan_gif);
fan_gif->start();
pLabel->setGeometry(5, 5, 48, 48);

该代码取自正在运行的应用程序Qt4。用按钮的父级创建标签,这是美丽的Qt。