def mousePressEvent(self, ev):
if QT5:
pos = self.transformPos(ev.localPos())
else:
pos = self.transformPos(ev.posF())
if ev.button() == QtCore.Qt.LeftButton:
if self.drawing():
if self.current:
# Add point to existing shape.
if self.createMode == "polygon":
self.current.addPoint(self.line[1])
self.line[0] = self.current[-1]
if self.current.isClosed():
self.finalise()
elif self.createMode == "trace":
self.mouseDoubleClickEvent(QtCore.QEvent(QtCore.QEvent.MouseButtonDblClick))
self.tracingActive = False
elif self.createMode in ["rectangle", "circle", "line"]:
assert len(self.current.points) == 1
self.current.points = self.line.points
self.finalise()
elif self.createMode == "linestrip":
self.current.addPoint(self.line[1])
self.line[0] = self.current[-1]
if int(ev.modifiers()) == QtCore.Qt.ControlModifier:
self.finalise()
elif not self.outOfPixmap(pos):
# Create new shape.
self.current = Shape(shape_type=self.createMode)
self.current.addPoint(pos)
if self.createMode == "trace":
self.tracingActive = True
if self.createMode == "point":
self.finalise()
else:
if self.createMode == "circle":
self.current.shape_type = "circle"
self.line.points = [pos, pos]
self.setHiding()
self.drawingPolygon.emit(True)
self.update()
else:
group_mode = int(ev.modifiers()) == QtCore.Qt.ControlModifier
self.selectShapePoint(pos, multiple_selection_mode=group_mode)
self.prevPoint = pos
self.repaint()
elif ev.button() == QtCore.Qt.RightButton and self.editing():
group_mode = int(ev.modifiers()) == QtCore.Qt.ControlModifier
self.selectShapePoint(pos, multiple_selection_mode=group_mode)
self.prevPoint = pos
self.repaint()
def persist_clipboard():
"""Persist the clipboard
X11 stores only a reference to the clipboard data.
Send a clipboard event to force a copy of the clipboard to occur.
This ensures that the clipboard is present after git-cola exits.
Otherwise, the reference is destroyed on exit.
C.f. https://stackoverflow.com/questions/2007103/how-can-i-disable-clear-of-clipboard-on-exit-of-pyqt4-application
"""
clipboard = QtWidgets.QApplication.clipboard()
event = QtCore.QEvent(QtCore.QEvent.Clipboard)
QtWidgets.QApplication.sendEvent(clipboard, event)
def mouseReleaseEvent(self, ev: QtGui.QMouseEvent) -> None:
if ev.button() == QtCore.Qt.LeftButton and self.current and self.tracingActive:
if len(self.current.points) > 1:
self.mouseDoubleClickEvent(QtCore.QEvent(QtCore.QEvent.MouseButtonDblClick))
self.tracingActive = False
if ev.button() == QtCore.Qt.RightButton:
menu = self.menus[len(self.selectedShapesCopy) > 0]
self.restoreCursor()
if (
not menu.exec_(self.mapToGlobal(ev.pos()))
and self.selectedShapesCopy
):
# Cancel the move by deleting the shadow copy.
self.selectedShapesCopy = []
self.repaint()
elif ev.button() == QtCore.Qt.LeftButton and self.selectedShapes:
self.overrideCursor(CURSOR_GRAB)
if (
self.editing()
and int(ev.modifiers()) == QtCore.Qt.ShiftModifier
):
# Add point to line if: left-click + SHIFT on a line segment
self.addPointToEdge()
elif ev.button() == QtCore.Qt.LeftButton and self.selectedVertex():
if (
self.editing()
and int(ev.modifiers()) == QtCore.Qt.ShiftModifier
):
# Delete point if: left-click + SHIFT on a point
self.removeSelectedPoint()
if self.movingShape and self.hShape:
index = self.shapes.index(self.hShape)
if (
self.shapesBackups[-1][index].points
!= self.shapes[index].points
):
self.storeShapes()
self.shapeMoved.emit()
self.movingShape = False
