def OnMouseWheel(self, event: wx.MouseEvent):
if self.selection_mode:
return
self.camera_interactor.mouse_wheel(event.GetWheelRotation(),
event.GetWheelDelta(),
event.ShiftDown(), event.AltDown(),
event.ControlDown())
self._x = self._y = -1
self.Sync()
self.Refresh()
def OnMotion(self, event: wx.MouseEvent):
x = event.GetX()
y = event.GetY()
if event.LeftIsDown():
# Normal scene movement without selection
if not self.selection_mode and self._x > -1 and self._y > -1:
self.camera_interactor.mouse_motion(x - self._x, y - self._y,
event.ShiftDown(),
event.AltDown(),
event.ControlDown())
self._x = x
self._y = y
# Left-mouse drag selection, movement disabled
if self.selection_mode and self.selection_mode is GLSelectionControls.BOX and \
not self.selection_mode_depressed:
if self.start_x == -1 and self.start_y == -1:
self.start_x = self._x
self.start_y = self._y
self.camera.box_select.from_screen_coords(
(self.start_x, self.start_y), (self._x, self._y))
self.Sync()
self.Refresh()
# Scene movement with selection enabled
elif event.RightIsDown() and self.selection_mode:
if self._x > -1 and self._y > -1:
self.camera_interactor.mouse_motion(x - self._x, y - self._y,
event.ShiftDown(),
event.AltDown(),
event.ControlDown())
self._x = x
self._y = y
# Reset mouse coordinates
else:
self._x = self._y = self.start_x = self.start_y = -1
event.Skip()
def OnLeftUp(self, event: MouseEvent):
"""
Callback for left up events.
@param event
"""
# manage the selector box
if self._selector is not None:
self.Bind(EVT_MOTION, self._NullCallback)
rect = self._selector
# x, y = rect.GetPosition() Not used
# w, h = rect.GetSize() Not used
for shape in self._diagram.GetShapes():
x0, y0 = shape.GetTopLeft()
w0, h0 = shape.GetSize()
if shape.GetParent() is None and \
rect.Inside(x0, y0) and \
rect.Inside(x0 + w0, y0) and \
rect.Inside(x0, y0 + h0) and \
rect.Inside(x0 + w0, y0 + h0):
shape.SetSelected(True)
shape.SetMoving(True)
self._selectedShapes.append(shape)
rect.Detach()
self._selector = None
if not self._moving and self._clickedShape:
clicked = self._clickedShape
if not event.ControlDown():
self.DeselectAllShapes()
self._selectedShapes = [clicked]
clicked.SetSelected(True)
clicked.SetMoving(True)
else:
sel = not clicked.IsSelected()
clicked.SetSelected(sel)
clicked.SetMoving(sel)
if sel and clicked not in self._selectedShapes:
self._selectedShapes.append(clicked)
elif not sel and clicked in self._selectedShapes:
self._selectedShapes.remove(clicked)
self._clickedShape = None
self.Refresh()
self._moving = False
# normal event management
self.GenericHandler(event, "OnLeftUp")
if not self.__keepMoving:
self.Bind(EVT_MOTION, self._NullCallback)
self.Refresh()
def OnLeftUp(self, event: MouseEvent):
"""
Callback for left up events.
Args:
event:
"""
if self._selector is not None:
self.Bind(EVT_MOTION, self._NullCallback)
self.clsLogger.debug(f'{self._selector=}')
rect = self._selector
for shape in self._diagram.GetShapes():
x0, y0 = shape.GetTopLeft()
w0, h0 = shape.GetSize()
if shape.GetParent() is None and self._isShapeInRectangle(
rect, x0=x0, y0=y0, w0=w0, h0=h0):
shape.SetSelected(True)
shape.SetMoving(True)
self._selectedShapes.append(shape)
rect.Detach()
self._selector = cast(RectangleShape, None)
if not self._moving and self._clickedShape:
self.clsLogger.debug(f'{self._moving} {self._clickedShape}')
clicked = self._clickedShape
if not event.ControlDown():
self.DeselectAllShapes()
self._selectedShapes = [clicked]
clicked.SetSelected(True)
clicked.SetMoving(True)
else:
sel = not clicked.IsSelected()
clicked.SetSelected(sel)
clicked.SetMoving(sel)
if sel and clicked not in self._selectedShapes:
self._selectedShapes.append(clicked)
elif not sel and clicked in self._selectedShapes:
self._selectedShapes.remove(clicked)
self._clickedShape = cast(Shape, None)
self.Refresh()
self._moving = False
# normal event management
self.GenericHandler(event, "OnLeftUp")
if not self.__keepMoving:
self.Bind(EVT_MOTION, self._NullCallback)
self.Refresh()
def OnLeftDown(self, event: MouseEvent):
"""
Callback for left down events on the diagram.
Args:
event:
"""
self.clsLogger.debug("DiagramFrame.OnLeftDown")
# First, call the generic handler for OnLeftDown
shape: ShapeEventHandler = self.GenericHandler(event, "OnLeftDown")
self._clickedShape = cast(Shape, shape) # store the last clicked shape
if not event.GetSkipped():
return
if shape is None:
self._BeginSelect(event)
return
# manage click and drag
x, y = event.GetX(), event.GetY()
self._lastMousePosition = (x, y)
realShape: Shape = cast(Shape, shape)
if not event.ControlDown() and not realShape.IsSelected():
shapes = self._diagram.GetShapes()
shapes.remove(shape)
if isinstance(shape, SizerShape):
# don't deselect the parent of a sizer
# or its sizer's would be detached
shapes.remove(shape.GetParent())
elif isinstance(shape, ControlPoint):
# don't deselect the line of a control point
self.clsLogger.debug(f'{shape=}')
for line in shape.GetLines():
shapes.remove(line)
# do not call DeselectAllShapes, because we must ensure that
# the sizer won't be deselected (because they are detached when they are deselected)
# deselect every other shape
for s in shapes:
s.SetSelected(False)
s.SetMoving(False)
self._selectedShapes = [cast(Shape, shape)]
cast(Shape, shape).SetSelected(True)
cast(Shape, shape).SetMoving(True)
self._clickedShape = cast(Shape, None)
self.Refresh()
self.Bind(EVT_MOTION, self.OnMove)
def _BeginSelect(self, event: MouseEvent):
"""
Create a selector box and manage it.
@param event
"""
if not event.ControlDown():
self.DeselectAllShapes()
x, y = event.GetX(), event.GetY() # event position has been modified
self._selector = rect = RectangleShape(x, y, 0, 0)
rect.SetDrawFrame(True)
rect.SetBrush(TRANSPARENT_BRUSH)
rect.SetMoving(True)
self._diagram.AddShape(rect)
self.PrepareBackground()
self.Bind(EVT_MOTION, self._OnMoveSelector)