def mouseMoveEvent(self, event):
contour = self._targetContour
if contour is None:
return
# we don't make any check here, mousePressEvent did it for us
pos = event.localPos()
# selected point
pt = contour[-1]
if not contour.open:
pt_ = contour[0]
if pt_.selected:
pt = pt_
if pt.segmentType and not self._shouldMoveOnCurve:
# don't make a curve until enough distance is reached
widget = self.parent()
rect = QRectF(self._origin, pos)
widgetRect = widget.mapRectFromCanvas(rect)
if (widgetRect.bottomRight() - widgetRect.topLeft(
)).manhattanLength() < 10:
return
# go
pt.selected = False
pt.smooth = not event.modifiers() & Qt.AltModifier
contour.holdNotifications()
if pt.segmentType == "line":
self._coerceSegmentToCurve(contour, pt, pos)
# TODO: defer this if Alt is pressed
elif pt.smooth and contour.open:
# if there's a curve segment behind, we need to update the
# offCurve's position to inverse
if len(contour) > 1:
onCurveBefore = contour[-2]
onCurveBefore.x = 2 * pt.x - pos.x()
onCurveBefore.y = 2 * pt.y - pos.y()
if contour.open:
contour.addPoint((pos.x(), pos.y()))
contour[-1].selected = True
contour.postNotification(
notification="Contour.SelectionChanged")
contour.releaseHeldNotifications()
else:
if pt.segmentType:
onCurve = pt
elif contour.open:
onCurve = contour[-2]
else:
onCurve = contour[0]
if event.modifiers() & Qt.ShiftModifier:
pos = self.clampToOrigin(
pos, QPointF(onCurve.x, onCurve.y))
if self._shouldMoveOnCurve:
dx = pos.x() - pt.x
dy = pos.y() - pt.y
moveUIPoint(contour, onCurve, (dx, dy))
else:
pt.x = pos.x()
pt.y = pos.y()
if contour.open and len(contour) >= 3 and onCurve.smooth:
if onCurve.segmentType == "line":
self._coerceSegmentToCurve(contour, onCurve, pos)
otherSidePoint = contour[-3]
otherSidePoint.x = 2 * onCurve.x - pos.x()
otherSidePoint.y = 2 * onCurve.y - pos.y()
contour.dirty = True
def mouseMoveEvent(self, event):
if not event.buttons() & Qt.LeftButton:
super().mouseMoveEvent(event)
return
contour = self._targetContour
if contour is None:
return
# we don't make any check here, mousePressEvent did it for us
pos = event.pos()
# selected point
pt = contour[-1]
if not contour.open:
pt_ = contour[0]
if pt_.selected:
pt = pt_
if pt.segmentType and not self._shouldMoveOnCurve:
# don't make a curve until enough distance is reached
widget = self.parent()
rect = QRectF(self._origin, event.localPos())
widgetRect = widget.mapRectFromCanvas(rect)
if (widgetRect.bottomRight() - widgetRect.topLeft()).manhattanLength() < 10:
return
# go
onSmooth = not event.modifiers() & Qt.AltModifier
pt.selected = False
pt.smooth = len(contour) > 1 and onSmooth
contour.holdNotifications()
if pt.segmentType == "line" and onSmooth:
self._coerceSegmentToCurve(contour, pt, pos)
elif pt.smooth and contour.open:
# if there's a curve segment behind, we need to update the
# offCurve's position to inverse
if len(contour) > 1:
onCurveBefore = contour[-2]
onCurveBefore.x = 2 * pt.x - pos.x()
onCurveBefore.y = 2 * pt.y - pos.y()
if contour.open:
contour.addPoint((pos.x(), pos.y()))
contour[-1].selected = True
contour.postNotification(notification="Contour.SelectionChanged")
contour.releaseHeldNotifications()
else:
if pt.segmentType:
onCurve = pt
elif contour.open:
onCurve = contour[-2]
else:
onCurve = contour[0]
if event.modifiers() & Qt.ShiftModifier:
pos = self.clampToOrigin(
event.localPos(), QPointF(onCurve.x, onCurve.y)
).toPoint()
if self._shouldMoveOnCurve:
dx = pos.x() - pt.x
dy = pos.y() - pt.y
moveUIPoint(contour, onCurve, (dx, dy))
else:
pt.x = pos.x()
pt.y = pos.y()
if contour.open and len(contour) >= 3 and onCurve.smooth:
if onCurve.segmentType == "line":
self._coerceSegmentToCurve(contour, onCurve, pos)
otherSidePoint = contour[-3]
otherSidePoint.x = 2 * onCurve.x - pos.x()
otherSidePoint.y = 2 * onCurve.y - pos.y()
contour.dirty = True
def mouseMoveEvent(self, event):
contour = self._targetContour
if contour is None:
return
# we don't make any check here, mousePressEvent did it for us
pos = event.localPos()
pt = contour[-1]
if pt.segmentType and not self._shouldMoveOnCurve:
# don't make a curve until enough distance is reached
widget = self.parent()
rect = QRectF(self._origin, pos)
widgetRect = widget.mapRectFromCanvas(rect)
if (widgetRect.bottomRight() - widgetRect.topLeft(
)).manhattanLength() < 10:
return
# go
pt.selected = False
pt.smooth = not event.modifiers() & Qt.AltModifier
contour.holdNotifications()
# TODO: defer this if Alt is pressed
if not contour.open:
# pt is the last point before contour start
if pt.segmentType:
contour.addPoint((pt.x, pt.y))
startPt = contour[0]
startPt.segmentType = "curve"
elif pt.segmentType == "line":
# remove the onCurve
contour.removePoint(pt)
# add the first of two offCurves
otherPt = contour[-1]
contour.addPoint((otherPt.x, otherPt.y))
# add an offCurve before pt
inverseX = 2 * pt.x - pos.x()
inverseY = 2 * pt.y - pos.y()
contour.addPoint((inverseX, inverseY))
# now add pt back as curve point
pt.segmentType = "curve"
contour.insertPoint(len(self._targetContour), pt)
else:
# if there's a curve segment behind, we need to update the
# offCurve's position to inverse
if len(contour) > 1:
onCurveBefore = contour[-2]
onCurveBefore.x = 2 * pt.x - pos.x()
onCurveBefore.y = 2 * pt.y - pos.y()
contour.addPoint((pos.x(), pos.y()))
contour[-1].selected = True
contour.releaseHeldNotifications()
else:
if pt.segmentType:
onCurve = pt
elif contour.open:
onCurve = contour[-2]
else:
onCurve = contour[0]
if event.modifiers() & Qt.ShiftModifier:
pos = self.clampToOrigin(
pos, QPointF(onCurve.x, onCurve.y))
if self._shouldMoveOnCurve:
dx = pos.x() - pt.x
dy = pos.y() - pt.y
moveUIPoint(contour, onCurve, (dx, dy))
else:
pt.x = pos.x()
pt.y = pos.y()
if contour.open and len(contour) >= 3 and onCurve.smooth:
otherSidePoint = contour[-3]
otherSidePoint.x = 2 * onCurve.x - pos.x()
otherSidePoint.y = 2 * onCurve.y - pos.y()
contour.dirty = True