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  • Qt编写自定义控件33-图片切换动画

    一、前言

    在很多看图软件中,切换图片的时候可以带上动画过渡或者切换效果,显得更人性化,其实主要还是炫一些,比如百叶窗、透明度变化、左下角飞入等,无论多少种效果,核心都是围绕QPainter来进行,将各种动画效果对应的图片的区域动态计算并绘制出来,配合以QPropertyAnimation动画属性产生线性插值,比如渐入飞入时候,可以中间快速两端慢速。目前动画类型有9种,后期还会不断增加。

    • 1:图像1渐渐变淡,图像2渐渐显现
    • 2:百叶窗效果
    • 3:图像从右向左翻转
    • 4:从外到内水平分割
    • 5:图像1从左至右退出可视区域,同时图像2从左至右进入可视区域
    • 6:图像1从左至右退出可视区域,同时图像2从左至右进入可视区域
    • 7:图像1从下至上退出可视区域,同时图像2从下至上进入可视区域
    • 8:图像1从上至下退出可视区域,同时图像2从上至下进入可视区域
    • 9:图像1不动,同时图像2从右下到左上

    二、实现的功能

    • 1:支持多种等待样式风格 圆弧状风格 旋转圆风格 三角圆弧 线条风格 圆环风格
    • 2:可设置范围值和当前值
    • 3:可设置前景色背景色
    • 4:可设置顺时针逆时针旋转
    • 5:支持任意大小缩放
    • 6:支持设置旋转速度间隔

    三、效果图

    四、头文件代码

    #ifndef IMAGEANIMATION_H
    #define IMAGEANIMATION_H
    
    /**
     * 图片切换动画控件 作者:赵彦博(QQ:408815041 zyb920@hotmail.com) 2019-6-10
     * 1:可设置动画类型,默认9种,后期会增加更多
     * FadeEffect = 0,             //图像1渐渐变淡,图像2渐渐显现
     * BlindsEffect = 1,           //百叶窗效果
     * FlipRightToLeft = 2,        //图像从右向左翻转
     * OutsideToInside = 3,        //从外到内水平分割
     * MoveLeftToRightEffect = 4,  //图像1从左至右退出可视区域,同时图像2从左至右进入可视区域
     * MoveRightToLeftEffect = 5,  //图像1从左至右退出可视区域,同时图像2从左至右进入可视区域
     * MoveBottomToUpEffect = 6,   //图像1从下至上退出可视区域,同时图像2从下至上进入可视区域
     * MoveUpToBottomEffect = 7,   //图像1从上至下退出可视区域,同时图像2从上至下进入可视区域
     * MoveBottomToLeftUpEffect = 8//图像1不动,同时图像2从右下到左上
     * 2:可设置两张图片的路径名称或者图片
     * 3:可设置动画因子
     */
    
    #include <QWidget>
    
    class QPropertyAnimation;
    
    #ifdef quc
    #if (QT_VERSION < QT_VERSION_CHECK(5,7,0))
    #include <QtDesigner/QDesignerExportWidget>
    #else
    #include <QtUiPlugin/QDesignerExportWidget>
    #endif
    
    class QDESIGNER_WIDGET_EXPORT ImageAnimation : public QWidget
    #else
    class ImageAnimation : public QWidget
    #endif
    
    {
        Q_OBJECT
        Q_ENUMS(AnimationType)
        Q_PROPERTY(float factor READ getFactor WRITE setFactor)
        Q_PROPERTY(QString imageName1 READ getImageName1 WRITE setImageName1)
        Q_PROPERTY(QString imageName2 READ getImageName2 WRITE setImageName2)
        Q_PROPERTY(QPixmap pixmap1 READ getPixmap1 WRITE setPixmap1)
        Q_PROPERTY(QPixmap pixmap2 READ getPixmap2 WRITE setPixmap2)
        Q_PROPERTY(AnimationType animationType READ getAnimationType WRITE setAnimationType)
    
    public:
        enum AnimationType {
            FadeEffect = 0,             //图像1渐渐变淡,图像2渐渐显现
            BlindsEffect = 1,           //百叶窗效果
            FlipRightToLeft = 2,        //图像从右向左翻转
            OutsideToInside = 3,        //从外到内水平分割
            MoveLeftToRightEffect = 4,  //图像1从左至右退出可视区域,同时图像2从左至右进入可视区域
            MoveRightToLeftEffect = 5,  //图像1从左至右退出可视区域,同时图像2从左至右进入可视区域
            MoveBottomToUpEffect = 6,   //图像1从下至上退出可视区域,同时图像2从下至上进入可视区域
            MoveUpToBottomEffect = 7,   //图像1从上至下退出可视区域,同时图像2从上至下进入可视区域
            MoveBottomToLeftUpEffect = 8//图像1不动,同时图像2从右下到左上
        };
    
        explicit ImageAnimation(QWidget *parent = 0);
        ~ImageAnimation();
    
    protected:
        void paintEvent(QPaintEvent *);
        void fadeEffect(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2);
        void blindsEffect(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2);
        void flipRightToLeft(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2);
        void outsideToInside(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2);
        void moveLeftToRightEffect(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2);
        void moveRightToLeftEffect(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2);
        void moveBottomToUpEffect(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2);
        void moveUpToBottomEffect(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2);
        void moveBottomToLeftUpEffect(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2);
    
    private:
        float factor;                   //动画因子(0 - 1.0之间变化)
        QString imageName1;             //图片1路径名称
        QString imageName2;             //图片2路径名称
        QPixmap pixmap1;                //图片1
        QPixmap pixmap2;                //图片2
        AnimationType animationType;    //动画效果类型
    
        QPropertyAnimation *animation;  //动画属性
    
    public:
        float getFactor()               const;
        QString getImageName1()         const;
        QString getImageName2()         const;
        QPixmap getPixmap1()            const;
        QPixmap getPixmap2()            const;
        AnimationType getAnimationType()const;
    
        QSize sizeHint()                const;
        QSize minimumSizeHint()         const;
    
    public Q_SLOTS:
        //设置动画因子
        void setFactor(float factor);
    
        //设置图片1+图片2路径名称
        void setImageName1(const QString &imageName1);
        void setImageName2(const QString &imageName2);
    
        //设置图片1+图片2
        void setPixmap1(const QPixmap &pixmap1);
        void setPixmap2(const QPixmap &pixmap2);
    
        //设置动画类型
        void setAnimationType(const AnimationType &animationType);
    
        //启动+停止动画
        void start();
        void stop();
    };
    
    #endif // IMAGEANIMATION_H
    
    
    

    五、核心代码

    void ImageAnimation::paintEvent(QPaintEvent *)
    {
        if (pixmap1.isNull() || pixmap2.isNull()) {
            return;
        }
    
        QPainter painter(this);
        painter.setRenderHint(QPainter::Antialiasing, true);
    
        switch (animationType) {
        case 0:
            fadeEffect(&painter, geometry(), factor, pixmap1, pixmap2);
            break;
        case 1:
            blindsEffect(&painter, geometry(), factor, pixmap1, pixmap2);
            break;
        case 2:
            flipRightToLeft(&painter, geometry(), factor, pixmap1, pixmap2);
            break;
        case 3:
            outsideToInside(&painter, geometry(), factor, pixmap1, pixmap2);
            break;
        case 4:
            moveLeftToRightEffect(&painter, geometry(), factor, pixmap1, pixmap2);
            break;
        case 5:
            moveRightToLeftEffect(&painter, geometry(), factor, pixmap1, pixmap2);
            break;
        case 6:
            moveBottomToUpEffect(&painter, geometry(), factor, pixmap1, pixmap2);
            break;
        case 7:
            moveUpToBottomEffect(&painter, geometry(), factor, pixmap1, pixmap2);
            break;
        case 8:
            moveBottomToLeftUpEffect(&painter, geometry(), factor, pixmap1, pixmap2);
            break;
        default:
            break;
        }
    }
    
    void ImageAnimation::fadeEffect(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2)
    {
        int w = rect.width();
        int h = rect.height();
        int alpha = 255 * (1.0f - factor);
    
        QPixmap alphaPixmap(pixmap1.size());
        alphaPixmap.fill(Qt::transparent);
    
        QPainter p1(&alphaPixmap);
        p1.setCompositionMode(QPainter::CompositionMode_Source);
        p1.drawPixmap(0, 0, pixmap1);
        p1.setCompositionMode(QPainter::CompositionMode_DestinationIn);
        p1.fillRect(alphaPixmap.rect(), QColor(0, 0, 0, alpha));
        p1.end();
    
        int x = (w - pixmap1.width()) / 2;
        int y = (h - pixmap1.height()) / 2;
        painter->drawPixmap(x, y, alphaPixmap);
    
        alpha = 255 * (factor);
        alphaPixmap.fill(Qt::transparent);
        QPainter p2(&alphaPixmap);
        p2.setCompositionMode(QPainter::CompositionMode_Source);
        p2.drawPixmap(0, 0, pixmap2);
        p2.setCompositionMode(QPainter::CompositionMode_DestinationIn);
        p2.fillRect(alphaPixmap.rect(), QColor(0, 0, 0, alpha));
        p2.end();
    
        painter->drawPixmap(x, y, alphaPixmap);
    }
    
    void ImageAnimation::blindsEffect(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2)
    {
        int i, n, w, h, x1, y1, x2, y2, dh, ddh;
    
        w = rect.width();
        h = rect.height();
        x1 = (w - pixmap1.width()) / 2;
        y1 = (h - pixmap1.height()) / 2;
        x2 = (w - pixmap2.width()) / 2;
        y2 = (h - pixmap2.height()) / 2;
    
        painter->drawPixmap(x1, y1, pixmap1);
    
        n = 10;
        dh = pixmap2.height() / n;
        ddh = factor * dh;
        if (ddh < 1) {
            ddh = 1;
        }
    
        for(i = 0; i < n; i++) {
            painter->drawPixmap(x2, y2 + i * dh, pixmap2, 0, i * dh, pixmap2.width(), ddh);
        }
    }
    
    void ImageAnimation::flipRightToLeft(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2)
    {
        int x1, y1, x2, y2, w, h;
        float rot;
        QTransform trans;
    
        w = rect.width();
        h = rect.height();
        x1 = (w - pixmap1.width()) / 2;
        y1 = (h - pixmap1.height()) / 2;
        x2 = (w - pixmap2.width()) / 2;
        y2 = (h - pixmap2.height()) / 2;
    
        rot = factor * 90.0f;
        trans.translate(w * (1 - factor), h / 2);
        trans.rotate(rot, Qt::YAxis);
        trans.translate(-w, -h / 2);
    
        painter->setTransform(trans);
        painter->drawPixmap(x1, y1, pixmap1);
        painter->resetTransform();
    
        trans.reset();
        rot = 90 * (factor - 1);
        trans.translate(w * (1 - factor), h / 2);
        trans.rotate(rot, Qt::YAxis);
        trans.translate(0, -h / 2);
    
        painter->setTransform(trans);
        painter->drawPixmap(x2, y2, pixmap2);
        painter->resetTransform();
    }
    
    void ImageAnimation::outsideToInside(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2)
    {
        int   w, h, x1, y1, x2, y2, x3, y3, dh, ddh;
    
        w = rect.width();
        h = rect.height();
        x1 = (w - pixmap1.width()) / 2;
        y1 = (h - pixmap1.height()) / 2;
        painter->drawPixmap(x1, y1, pixmap1);
    
        dh = pixmap2.height() / 2;
        ddh = factor * dh;
        if (ddh < 1) {
            ddh = 1;
        }
    
        x2 = (w - pixmap2.width()) / 2;
        y2 = (h - pixmap2.height()) / 2;
        painter->drawPixmap(x2, y2, pixmap2, 0, 0, pixmap2.width(), ddh);
    
        x3 = (w - pixmap2.width()) / 2;
        y3 =  dh * (1.0f - factor) + h / 2;
        if(y3 != h / 2) {
            y3 += 1;
        }
    
        painter->drawPixmap(x3, y3, pixmap2, 0, pixmap2.height() - ddh, pixmap2.width(), ddh);
    }
    
    void ImageAnimation::moveLeftToRightEffect(QPainter *painter, const QRect &rect, float factor, const QPixmap &pixmap1, const QPixmap &pixmap2)
    {
        int x, y, w, h, x1, y1, x2, y2;
    
        w = rect.width();
        h = rect.height();
        x1 = (w - pixmap1.width()) / 2;
        y1 = (h - pixmap1.height()) / 2;
        x2 = (w - pixmap2.width()) / 2;
        y2 = (h - pixmap2.height()) / 2;
    
        x = x1 + w * factor;
        y = y1;
        painter->drawPixmap(x, y, pixmap1);
    
        x = x2 + w * (factor - 1);
        y = y2;
        painter->drawPixmap(x, y, pixmap2);
    }
    
    

    六、控件介绍

    1. 超过149个精美控件,涵盖了各种仪表盘、进度条、进度球、指南针、曲线图、标尺、温度计、导航条、导航栏,flatui、高亮按钮、滑动选择器、农历等。远超qwt集成的控件数量。
    2. 每个类都可以独立成一个单独的控件,零耦合,每个控件一个头文件和一个实现文件,不依赖其他文件,方便单个控件以源码形式集成到项目中,较少代码量。qwt的控件类环环相扣,高度耦合,想要使用其中一个控件,必须包含所有的代码。
    3. 全部纯Qt编写,QWidget+QPainter绘制,支持Qt4.6到Qt5.12的任何Qt版本,支持mingw、msvc、gcc等编译器,支持任意操作系统比如windows+linux+mac+嵌入式linux等,不乱码,可直接集成到Qt Creator中,和自带的控件一样使用,大部分效果只要设置几个属性即可,极为方便。
    4. 每个控件都有一个对应的单独的包含该控件源码的DEMO,方便参考使用。同时还提供一个所有控件使用的集成的DEMO。
    5. 每个控件的源代码都有详细中文注释,都按照统一设计规范编写,方便学习自定义控件的编写。
    6. 每个控件默认配色和demo对应的配色都非常精美。
    7. 超过130个可见控件,6个不可见控件。
    8. 部分控件提供多种样式风格选择,多种指示器样式选择。
    9. 所有控件自适应窗体拉伸变化。
    10. 集成自定义控件属性设计器,支持拖曳设计,所见即所得,支持导入导出xml格式。
    11. 自带activex控件demo,所有控件可以直接运行在ie浏览器中。
    12. 集成fontawesome图形字体+阿里巴巴iconfont收藏的几百个图形字体,享受图形字体带来的乐趣。
    13. 所有控件最后生成一个dll动态库文件,可以直接集成到qtcreator中拖曳设计使用。
    14. 目前已经有qml版本,后期会考虑出pyqt版本,如果用户需求量很大的话。

    七、SDK下载

    • SDK下载链接:https://pan.baidu.com/s/1A5Gd77kExm8Co5ckT51vvQ 提取码:877p
    • 下载链接中包含了各个版本的动态库文件,所有控件的头文件,使用demo,自定义控件+属性设计器。
    • 自定义控件插件开放动态库dll使用(永久免费),无任何后门和限制,请放心使用。
    • 目前已提供26个版本的dll,其中包括了qt5.12.3 msvc2017 32+64 mingw 32+64 的。
    • 不定期增加控件和完善控件,不定期更新SDK,欢迎各位提出建议,谢谢!
    • widget版本(QQ:517216493)qml版本(QQ:373955953)三峰驼(QQ:278969898)。
    • 涛哥的知乎专栏 Qt进阶之路 https://zhuanlan.zhihu.com/TaoQt
    • 欢迎关注微信公众号【高效程序员】,C++/Python、学习方法、写作技巧、热门技术、职场发展等内容,干货多多,福利多多!
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  • 原文地址:https://www.cnblogs.com/feiyangqingyun/p/11223002.html
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