本文整理汇总了Python中PyQt5.QtWidgets.QGraphicsScene.mousePressEvent方法的典型用法代码示例。如果您正苦于以下问题：Python QGraphicsScene.mousePressEvent方法的具体用法？Python QGraphicsScene.mousePressEvent怎么用？Python QGraphicsScene.mousePressEvent使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PyQt5.QtWidgets.QGraphicsScene的用法示例。
在下文中一共展示了QGraphicsScene.mousePressEvent方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: mousePressEvent
# 需要导入模块: from PyQt5.QtWidgets import QGraphicsScene [as 别名]
# 或者: from PyQt5.QtWidgets.QGraphicsScene import mousePressEvent [as 别名]
def mousePressEvent(self, event):
QGraphicsScene.mousePressEvent(self, event)
if not (any(key.pressed for key in self.piano_keys)
or any(note.pressed for note in self.notes)):
for note in self.selected_notes:
note.setSelected(False)
self.selected_notes = []
if event.button() == Qt.LeftButton:
if self.insert_mode:
self.place_ghost = True
else:
self.marquee_select = True
self.marquee_rect = QRectF(event.scenePos().x(), event.scenePos().y(), 1, 1)
self.marquee = QGraphicsRectItem(self.marquee_rect)
self.marquee.setBrush(QColor(255, 255, 255, 100))
self.addItem(self.marquee)
else:
for s_note in self.notes:
if s_note.pressed and s_note in self.selected_notes:
break
elif s_note.pressed and s_note not in self.selected_notes:
for note in self.selected_notes:
note.setSelected(False)
self.selected_notes = [s_note]
break
for note in self.selected_notes:
if not self.velocity_mode:
note.mousePressEvent(event)示例2: mousePressEvent
# 需要导入模块: from PyQt5.QtWidgets import QGraphicsScene [as 别名]
# 或者: from PyQt5.QtWidgets.QGraphicsScene import mousePressEvent [as 别名]
def mousePressEvent(self, qGraphicsSceneMouseEvent):
QGraphicsScene.mousePressEvent(self, qGraphicsSceneMouseEvent)