| 49 | } |
| 50 | |
| 51 | void MyGraphicsView::mousePressEvent(QMouseEvent *event){ |
| 52 | if(event->button() == Qt::MiddleButton){ |
| 53 | onMiddlePress = true; |
| 54 | lastPos = mapToScene(event->pos()); |
| 55 | return; |
| 56 | } |
| 57 | if(hasVisitedItem){ |
| 58 | emit visitClear(); |
| 59 | if(curAni){ |
| 60 | curAni->stop(); |
| 61 | curAni->deleteLater(); |
| 62 | curAni = nullptr; |
| 63 | onAni = false; |
| 64 | } |
| 65 | aniQueue.clear(); |
| 66 | hasVisitedItem = false; |
| 67 | } |
| 68 | if(itemState & ADD){ |
| 69 | if(event->button() == Qt::LeftButton){ |
| 70 | selItem = nullptr; |
| 71 | emit mouseLeftClicked(mapToScene(event->pos())); |
| 72 | } |
| 73 | else{ |
| 74 | clearSketch(); |
| 75 | itemState = selItem == nullptr ? NON : SEL | VEX; |
| 76 | } |
| 77 | } |
| 78 | else{ |
| 79 | itemState = NON; |
| 80 | if(event->button() == Qt::LeftButton) |
| 81 | emit mouseLeftClicked(mapToScene(event->pos())); |
| 82 | else if(event->button() == Qt::RightButton){ |
| 83 | emit mouseRightClicked(mapToScene(event->pos())); |
| 84 | onRightPress = true; |
| 85 | } |
| 86 | } |
| 87 | changeCursor(); |
| 88 | } |
| 89 | |
| 90 | void MyGraphicsView::mouseReleaseEvent(QMouseEvent *event){ |
| 91 | if(onMiddlePress){ |