void ScreenshotsWidget::updateMouseShape(const QPoint &point)
{
switch(currentShotState){
case initShot:
case beginShot:
setCursor(Qt::CrossCursor);
break;
case beginMoveShot:
setCursor(Qt::OpenHandCursor);
break;
case finishShot:
case finishMoveShot:
case finishControl:
if(getSelectedRect().contains(point))
setCursor(Qt::OpenHandCursor);
else
updateMoveControlMouseShape(getMoveControlState(point));
break;
case beginControl:
updateMoveControlMouseShape(controlValue); //调用函数对移动8个控制点进行鼠标状态的改变
break;
default:
setCursor(Qt::ArrowCursor);
break;
}
}
void ScreenshotsWidget::mousePressEvent(QMouseEvent *event)
{
//当开始进行拖动进行选择区域时,确定开始选取的beginPoint坐标
if(event->button() == Qt::LeftButton && currentShotState == initShot){
currentShotState = beginShot; //设置当前状态为beginShot状态
beginPoint = event->pos();
}
//移动选区改变选区的所在位置
if(event->button() == Qt::LeftButton && isInSelectedRect(event->pos()) &&
getMoveControlState(event->pos()) == moveControl0){
currentShotState = beginMoveShot; //启用开始移动选取选项,beginMoveShot状态
moveBeginPoint = event->pos();
}
//移动控制点改变选区大小
if(event->button() == Qt::LeftButton && getMoveControlState(event->pos()) != moveControl0){
currentShotState = beginControl; //开始移动控制点
controlValue = getMoveControlState(event->pos());
moveBeginPoint = event->pos();
}
}
void WizScreenShotWidget::mousePressEvent(QMouseEvent *event)
{
if (event->button() == Qt::LeftButton && currentShotState == initShot)
{
currentShotState = beginShot;
beginPoint = event->pos();
}
if (event->button() == Qt::LeftButton && isInSelectedRect(event->pos()) &&
getMoveControlState(event->pos()) == moveControl0)
{
currentShotState = beginMoveShot;
moveBeginPoint = event->pos();
}
if (event->button() == Qt::LeftButton && getMoveControlState(event->pos()) != moveControl0)
{
currentShotState = beginControl;
controlValue = getMoveControlState(event->pos());
moveBeginPoint = event->pos();
}
}
