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;
}
}
bool ScreenshotsWidget::isInSelectedRect(const QPoint &point)
{
int x,y;
QRect selectedRect;
if(currentShotState == initShot || currentShotState == beginShot)
return false;
selectedRect = getSelectedRect();
x = point.x();
y = point.y();
return selectedRect.contains(x,y);
}
void SelectionView::mouseReleaseEvent( QMouseEvent *e )
{
if ( _drawLine ) {
QPainter painter( getPix() );
painter.setPen(QPen(Qt::red, 12, Qt::DashDotLine, Qt::RoundCap));
painter.drawPath( *linePath );
pixItem->setPixmap( *getPix() );
// scene()->addPixmap( *getPix() );
_drawLineHold = false;
return;
}
//!* self-defined pixel
if ( _snapRatio == -1.0)
{
if (_isFromCenter)
{
_originPoint.rx() = e ->pos().x() - int(_snapWidth*_zoomRatio/2+0.5);
_originPoint.ry() = e ->pos().y() - int(_snapHeight*_zoomRatio/2+0.5);
_terminalPoint.rx() = e ->pos().x() + int(_snapWidth*_zoomRatio/2+0.5);
_terminalPoint.ry() = e ->pos().y() + int(_snapHeight*_zoomRatio/2+0.5);
}
else
{
_originPoint = e->pos();
_terminalPoint.rx() = e ->pos().x() + int(_snapWidth*_zoomRatio+0.5) - 1;
_terminalPoint.ry() = e ->pos().y() + int(_snapHeight*_zoomRatio+0.5) - 1;
}
}
//!* specify ratio
else
{
if (_isFromCenter)
{
_originPoint = _originPoint + _originPoint - _terminalPoint;
}
}
QRect selectedRect = getSelectedRect();
QPoint topLeft = selectedRect.topLeft() / _zoomRatio;
QPoint bottomRight = selectedRect.bottomRight() / _zoomRatio;
if ( qAbs(bottomRight.x()-topLeft.x()) > 2 && qAbs(bottomRight.y()-topLeft.y()) > 2 )
emit rubberBandSelectionFinished();
_selectionFinished = true;
}