一、简介

csdn博客上看到了一个比较简单的动画，类似windows下右下角的弹出广告界面。故记录在此，以便查阅。

二、详解

1、部分代码

（1）rightpop.h

#ifndef RIGHTPOP_H#define RIGHTPOP_H#include "epushbutton.h"#include 
   
    class RightPop : public QWidget{    Q_OBJECTpublic:    RightPop(QWidget *parent = 0);    ~RightPop();    void showMessage();protected:    void paintEvent(QPaintEvent *event);private slots:    void onMove();    void onStay();    void onClose();    void onExit();private:    QPixmap backGroundPix;    EPushButton *closeButton;    QTimer *showTimer;    QTimer *stayTimer;    QTimer *closeTimer;    QPoint point;    double transparentPercent;    int desktopHeight;};#endif // RIGHTPOP_H

（2）rightpop.cpp

#include "rightpop.h"RightPop::RightPop(QWidget *parent)    : QWidget(parent, Qt::FramelessWindowHint| Qt::ToolTip)    , transparentPercent(1.0){    resize(300, 200);    backGroundPix.load(":/background.png");    backGroundPix = backGroundPix.scaled(width(), height(), Qt::KeepAspectRatio, Qt::SmoothTransformation);    closeButton = new EPushButton(this);    closeButton->setPixName(":/close");    closeButton->setToolTip(tr("close"));    closeButton->move(width() - 27, 0);    connect(closeButton, SIGNAL(clicked()), this, SLOT(onExit()));    showTimer = new QTimer(this);    showTimer->setInterval(5);    stayTimer = new QTimer(this);    stayTimer->setInterval(5000);    closeTimer = new QTimer(this);    closeTimer->setInterval(5);    connect(showTimer, SIGNAL(timeout()), this, SLOT(onMove()));    connect(stayTimer, SIGNAL(timeout()), this, SLOT(onStay()));    connect(closeTimer, SIGNAL(timeout()), this, SLOT(onClose()));    showMessage();}RightPop::~RightPop(){}void RightPop::showMessage(){    QRect rect = QApplication::desktop()->availableGeometry();    point.setX(rect.width() - width());    point.setY(rect.height() + 50);    desktopHeight = rect.height() + 50;    move(point.x(), point.y());    showTimer->start();}void RightPop::onMove(){    desktopHeight--;    move(point.x(), desktopHeight);    if (desktopHeight <= point.y() - 200) {        showTimer->stop();        stayTimer->start();    }}void RightPop::onStay(){    stayTimer->stop();    closeTimer->start();}void RightPop::onClose(){//    transparentPercent -= 0.1;//    qDebug() << transparentPercent;//    if (transparentPercent <= 0.0) {//        closeTimer->stop();//        onExit();//    }//    else {//        setWindowOpacity(transparentPercent);//    }    desktopHeight++;    move(point.x(), desktopHeight);    if (desktopHeight >= point.y()) {        closeTimer->stop();        onExit();    }}void RightPop::onExit(){    exit(0);}void RightPop::paintEvent(QPaintEvent *event){    QPainter painter(this);    painter.drawPixmap(0, 0, width(), height(), backGroundPix);    painter.setFont(QFont("arial", 10, QFont::Bold));    painter.setPen(QColor("#FFFFFF"));    painter.setBrush(QColor("#FFFFFF"));    painter.drawText(QRectF(5, 5, 100, 35), tr("Happy New Year"));    painter.drawRect(QRectF(0, 30, width(), height() - 30));    QWidget::paintEvent(event);}