QT做軟鍵盤時將軟鍵盤窗口控件放到指定控件的合適位置

//功能：將控件停靠到指定窗口的合適位置

BOOL CQTGUINumKeyboard::moveTo(QWidget *inputObject)

{

    if(inputObject == NULL) return FALSE;

    QPoint pointGlobal(inputObject->mapToGlobal(QPoint(0,0)));//獲取控件的屏幕座標

    int objHeight = inputObject->height();

    int objWidth  = inputObject->width();

    qDebug()<<"objHeight"<<objHeight;

    qDebug()<<"objWidth"<<objWidth;

    int selfHeight = this->height();

    int selfWidth  = this->width();

    int screenWidth  = QApplication::desktop()->width();

    int screenHeight = QApplication::desktop()->height();

    int leftBottomPointX = pointGlobal.x();//移動到左下方座標

    int leftBottomPointY = pointGlobal.y()+objHeight;

    int leftBottomRectWidth  = leftBottomPointX+selfWidth;

    int leftBottomRectHeight = leftBottomPointY+selfHeight;

    qDebug()<<"pointGlobal.x"<<pointGlobal.x();

    qDebug()<<"pointGlobal.y"<<pointGlobal.y();

    qDebug()<<"leftBottomPointX"<<leftBottomPointX;

    qDebug()<<"leftBottomPointY"<<leftBottomPointY;

    int leftTopPointX = pointGlobal.x();//移動到左上方座標

    int leftTopPointY = pointGlobal.y()-selfHeight;

    int leftTopRectWidth = leftTopPointX+selfWidth;

    int leftTopRectHeight = leftTopPointY;

    int rightTopPointX = pointGlobal.x()+objWidth-selfWidth;//移動到右上方座標

    int rightTopPointY = pointGlobal.y()-selfHeight;

    int rightTopRectWidth  = rightTopPointX;

    int rightTopRectHeight = rightTopPointY;

    int rightBottomPointX = pointGlobal.x()+objWidth-selfWidth;//移動到右下方座標

    int rightBottomPointY = pointGlobal.y()+objHeight;

    int rightBottomRectWidth = rightBottomPointX;

    int rightBottomRectHeight = rightBottomPointY+selfHeight;

    if((leftBottomRectWidth<=screenWidth)&&(leftBottomRectHeight<=screenHeight))

        this->move(leftBottomPointX,leftBottomPointY);

    else if((leftTopRectWidth<=screenWidth)&&(leftTopRectHeight>=0))

        this->move(leftTopPointX,leftTopPointY);

    else if((rightTopRectWidth>=0)&&(rightTopRectHeight>=0))

        this->move(rightTopPointX,rightTopPointY);

    else if((rightBottomRectWidth>=0)&&(rightBottomRectHeight<=screenHeight))

        this->move(rightBottomPointX,rightBottomPointY);

    return TRUE;

}