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Poodletooth-iLand/panda/python/Lib/site-packages/wx/lib/ogl/composit.py
Zach 10cf2f553e added wx, setuptools, and pip
2015-03-06 06:11:40 -06:00

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# -*- coding: utf-8 -*-
#----------------------------------------------------------------------------
# Name: composit.py
# Purpose: Composite class
#
# Author: Pierre Hjälm (from C++ original by Julian Smart)
#
# Created: 2004-05-08
# Copyright: (c) 2004 Pierre Hjälm - 1998 Julian Smart
# Licence: wxWindows license
# Tags: phoenix-port, unittest, py3-port, documented
#----------------------------------------------------------------------------
"""
The :class:`~lib.ogl.composit.CompositeShape` class.
"""
import sys
import wx
from .basic import RectangleShape, Shape, ControlPoint
from .oglmisc import *
_objectStartX = 0.0
_objectStartY = 0.0
CONSTRAINT_CENTRED_VERTICALLY = 1
CONSTRAINT_CENTRED_HORIZONTALLY = 2
CONSTRAINT_CENTRED_BOTH = 3
CONSTRAINT_LEFT_OF = 4
CONSTRAINT_RIGHT_OF = 5
CONSTRAINT_ABOVE = 6
CONSTRAINT_BELOW = 7
CONSTRAINT_ALIGNED_TOP = 8
CONSTRAINT_ALIGNED_BOTTOM = 9
CONSTRAINT_ALIGNED_LEFT = 10
CONSTRAINT_ALIGNED_RIGHT = 11
# Like aligned, but with the objects centred on the respective edge
# of the reference object.
CONSTRAINT_MIDALIGNED_TOP = 12
CONSTRAINT_MIDALIGNED_BOTTOM = 13
CONSTRAINT_MIDALIGNED_LEFT = 14
CONSTRAINT_MIDALIGNED_RIGHT = 15
class ConstraintType(object):
"""The :class:`ConstraintType` class."""
def __init__(self, theType, theName, thePhrase):
"""
Default class constructor.
:param `theType`: one of the folowing
====================================== ================================
Constraint type Description
====================================== ================================
`CONSTRAINT_CENTRED_VERTICALLY` Centered vertically
`CONSTRAINT_CENTRED_HORIZONTALLY` Centered horizontally
`CONSTRAINT_CENTRED_BOTH` Centered in both directions
`CONSTRAINT_LEFT_OF` Center left of
`CONSTRAINT_RIGHT_OF` Center right of
`CONSTRAINT_ABOVE` Center above
`CONSTRAINT_BELOW` Center below
`CONSTRAINT_ALIGNED_TOP` Align top
`CONSTRAINT_ALIGNED_BOTTOM` Align bottom
`CONSTRAINT_ALIGNED_LEFT` Align left
`CONSTRAINT_ALIGNED_RIGHT` Align right
`CONSTRAINT_MIDALIGNED_TOP` Middle align top
`CONSTRAINT_MIDALIGNED_BOTTOM` Middle align bottom
`CONSTRAINT_MIDALIGNED_LEFT` Middle align left
`CONSTRAINT_MIDALIGNED_RIGHT` Middle align right
====================================== ================================
:param `theName`: the name for the constraint
:param `thePhrase`: the descriptive phrase
"""
self._type = theType
self._name = theName
self._phrase = thePhrase
ConstraintTypes = [
[CONSTRAINT_CENTRED_VERTICALLY,
ConstraintType(CONSTRAINT_CENTRED_VERTICALLY, "Centre vertically", "centred vertically w.r.t.")],
[CONSTRAINT_CENTRED_HORIZONTALLY,
ConstraintType(CONSTRAINT_CENTRED_HORIZONTALLY, "Centre horizontally", "centred horizontally w.r.t.")],
[CONSTRAINT_CENTRED_BOTH,
ConstraintType(CONSTRAINT_CENTRED_BOTH, "Centre", "centred w.r.t.")],
[CONSTRAINT_LEFT_OF,
ConstraintType(CONSTRAINT_LEFT_OF, "Left of", "left of")],
[CONSTRAINT_RIGHT_OF,
ConstraintType(CONSTRAINT_RIGHT_OF, "Right of", "right of")],
[CONSTRAINT_ABOVE,
ConstraintType(CONSTRAINT_ABOVE, "Above", "above")],
[CONSTRAINT_BELOW,
ConstraintType(CONSTRAINT_BELOW, "Below", "below")],
# Alignment
[CONSTRAINT_ALIGNED_TOP,
ConstraintType(CONSTRAINT_ALIGNED_TOP, "Top-aligned", "aligned to the top of")],
[CONSTRAINT_ALIGNED_BOTTOM,
ConstraintType(CONSTRAINT_ALIGNED_BOTTOM, "Bottom-aligned", "aligned to the bottom of")],
[CONSTRAINT_ALIGNED_LEFT,
ConstraintType(CONSTRAINT_ALIGNED_LEFT, "Left-aligned", "aligned to the left of")],
[CONSTRAINT_ALIGNED_RIGHT,
ConstraintType(CONSTRAINT_ALIGNED_RIGHT, "Right-aligned", "aligned to the right of")],
# Mid-alignment
[CONSTRAINT_MIDALIGNED_TOP,
ConstraintType(CONSTRAINT_MIDALIGNED_TOP, "Top-midaligned", "centred on the top of")],
[CONSTRAINT_MIDALIGNED_BOTTOM,
ConstraintType(CONSTRAINT_MIDALIGNED_BOTTOM, "Bottom-midaligned", "centred on the bottom of")],
[CONSTRAINT_MIDALIGNED_LEFT,
ConstraintType(CONSTRAINT_MIDALIGNED_LEFT, "Left-midaligned", "centred on the left of")],
[CONSTRAINT_MIDALIGNED_RIGHT,
ConstraintType(CONSTRAINT_MIDALIGNED_RIGHT, "Right-midaligned", "centred on the right of")]
]
class Constraint(object):
"""
The :class:`Constraint` class helps specify how child shapes are laid out
with respect to siblings and parents.
"""
def __init__(self, type, constraining, constrained):
"""
Default class constructor.
:param `type`: see :class:`ConstraintType` for valid types
:param `constraining`: the constraining :class:`Shape`
:param `constrained`: the constrained :class:`Shape`
"""
self._xSpacing = 0.0
self._ySpacing = 0.0
self._constraintType = type
self._constrainingObject = constraining
self._constraintId = 0
self._constraintName = "noname"
self._constrainedObjects = constrained[:]
def __repr__(self):
return "<%s.%s>" % (self.__class__.__module__, self.__class__.__name__)
def SetSpacing(self, x, y):
"""
Sets the horizontal and vertical spacing for the constraint.
:param `x`: the x position
:param `y`: the y position
"""
self._xSpacing = x
self._ySpacing = y
def Equals(self, a, b):
"""
Return `True` if a and b are approximately equal (for the purposes
of evaluating the constraint).
:param `a`: ???
:param `b`: ???
"""
marg = 0.5
return b <= a + marg and b >= a - marg
def Evaluate(self):
"""Evaluate this constraint and return `True` if anything changed."""
maxWidth, maxHeight = self._constrainingObject.GetBoundingBoxMax()
minWidth, minHeight = self._constrainingObject.GetBoundingBoxMin()
x = self._constrainingObject.GetX()
y = self._constrainingObject.GetY()
dc = wx.MemoryDC()
dc.SelectObject(self._constrainingObject.GetCanvas()._Buffer)
if self._constraintType == CONSTRAINT_CENTRED_VERTICALLY:
n = len(self._constrainedObjects)
totalObjectHeight = 0.0
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
totalObjectHeight += height2
# Check if within the constraining object...
if totalObjectHeight + (n + 1) * self._ySpacing <= minHeight:
spacingY = (minHeight - totalObjectHeight) / (n + 1.0)
startY = y - minHeight / 2.0
else: # Otherwise, use default spacing
spacingY = self._ySpacing
startY = y - (totalObjectHeight + (n + 1) * spacingY) / 2.0
# Now position the objects
changed = False
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
startY += spacingY + height2 / 2.0
if not self.Equals(startY, constrainedObject.GetY()):
constrainedObject.Move(dc, constrainedObject.GetX(), startY, False)
changed = True
startY += height2 / 2.0
return changed
elif self._constraintType == CONSTRAINT_CENTRED_HORIZONTALLY:
n = len(self._constrainedObjects)
totalObjectWidth = 0.0
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
totalObjectWidth += width2
# Check if within the constraining object...
if totalObjectWidth + (n + 1) * self._xSpacing <= minWidth:
spacingX = (minWidth - totalObjectWidth) / (n + 1.0)
startX = x - minWidth / 2.0
else: # Otherwise, use default spacing
spacingX = self._xSpacing
startX = x - (totalObjectWidth + (n + 1) * spacingX) / 2.0
# Now position the objects
changed = False
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
startX += spacingX + width2 / 2.0
if not self.Equals(startX, constrainedObject.GetX()):
constrainedObject.Move(dc, startX, constrainedObject.GetY(), False)
changed = True
startX += width2 / 2.0
return changed
elif self._constraintType == CONSTRAINT_CENTRED_BOTH:
n = len(self._constrainedObjects)
totalObjectWidth = 0.0
totalObjectHeight = 0.0
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
totalObjectWidth += width2
totalObjectHeight += height2
# Check if within the constraining object...
if totalObjectHeight + (n + 1) * self._xSpacing <= minWidth:
spacingX = (minWidth - totalObjectWidth) / (n + 1.0)
startX = x - minWidth / 2.0
else: # Otherwise, use default spacing
spacingX = self._xSpacing
startX = x - (totalObjectWidth + (n + 1) * spacingX) / 2.0
# Check if within the constraining object...
if totalObjectHeight + (n + 1) * self._ySpacing <= minHeight:
spacingY = (minHeight - totalObjectHeight) / (n + 1.0)
startY = y - minHeight / 2.0
else: # Otherwise, use default spacing
spacingY = self._ySpacing
startY = y - (totalObjectHeight + (n + 1) * spacingY) / 2.0
# Now position the objects
changed = False
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
startX += spacingX + width2 / 2.0
startY += spacingY + height2 / 2.0
if not self.Equals(startX, constrainedObject.GetX()) or not self.Equals(startY, constrainedObject.GetY()):
constrainedObject.Move(dc, startX, startY, False)
changed = True
startX += width2 / 2.0
startY += height2 / 2.0
return changed
elif self._constraintType == CONSTRAINT_LEFT_OF:
changed = False
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
x3 = x - minWidth / 2.0 - width2 / 2.0 - self._xSpacing
if not self.Equals(x3, constrainedObject.GetX()):
changed = True
constrainedObject.Move(dc, x3, constrainedObject.GetY(), False)
return changed
elif self._constraintType == CONSTRAINT_RIGHT_OF:
changed = False
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
x3 = x + minWidth / 2.0 + width2 / 2.0 + self._xSpacing
if not self.Equals(x3, constrainedObject.GetX()):
constrainedObject.Move(dc, x3, constrainedObject.GetY(), False)
changed = True
return changed
elif self._constraintType == CONSTRAINT_ABOVE:
changed = False
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
y3 = y - minHeight / 2.0 - height2 / 2.0 - self._ySpacing
if not self.Equals(y3, constrainedObject.GetY()):
changed = True
constrainedObject.Move(dc, constrainedObject.GetX(), y3, False)
return changed
elif self._constraintType == CONSTRAINT_BELOW:
changed = False
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
y3 = y + minHeight / 2.0 + height2 / 2.0 + self._ySpacing
if not self.Equals(y3, constrainedObject.GetY()):
changed = True
constrainedObject.Move(dc, constrainedObject.GetX(), y3, False)
return changed
elif self._constraintType == CONSTRAINT_ALIGNED_LEFT:
changed = False
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
x3 = x - minWidth / 2.0 + width2 / 2.0 + self._xSpacing
if not self.Equals(x3, constrainedObject.GetX()):
changed = True
constrainedObject.Move(dc, x3, constrainedObject.GetY(), False)
return changed
elif self._constraintType == CONSTRAINT_ALIGNED_RIGHT:
changed = False
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
x3 = x + minWidth / 2.0 - width2 / 2.0 - self._xSpacing
if not self.Equals(x3, constrainedObject.GetX()):
changed = True
constrainedObject.Move(dc, x3, constrainedObject.GetY(), False)
return changed
elif self._constraintType == CONSTRAINT_ALIGNED_TOP:
changed = False
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
y3 = y - minHeight / 2.0 + height2 / 2.0 + self._ySpacing
if not self.Equals(y3, constrainedObject.GetY()):
changed = True
constrainedObject.Move(dc, constrainedObject.GetX(), y3, False)
return changed
elif self._constraintType == CONSTRAINT_ALIGNED_BOTTOM:
changed = False
for constrainedObject in self._constrainedObjects:
width2, height2 = constrainedObject.GetBoundingBoxMax()
y3 = y + minHeight / 2.0 - height2 / 2.0 - self._ySpacing
if not self.Equals(y3, constrainedObject.GetY()):
changed = True
constrainedObject.Move(dc, constrainedObject.GetX(), y3, False)
return changed
elif self._constraintType == CONSTRAINT_MIDALIGNED_LEFT:
changed = False
for constrainedObject in self._constrainedObjects:
x3 = x - minWidth / 2.0
if not self.Equals(x3, constrainedObject.GetX()):
changed = True
constrainedObject.Move(dc, x3, constrainedObject.GetY(), False)
return changed
elif self._constraintType == CONSTRAINT_MIDALIGNED_RIGHT:
changed = False
for constrainedObject in self._constrainedObjects:
x3 = x + minWidth / 2.0
if not self.Equals(x3, constrainedObject.GetX()):
changed = True
constrainedObject.Move(dc, x3, constrainedObject.GetY(), False)
return changed
elif self._constraintType == CONSTRAINT_MIDALIGNED_TOP:
changed = False
for constrainedObject in self._constrainedObjects:
y3 = y - minHeight / 2.0
if not self.Equals(y3, constrainedObject.GetY()):
changed = True
constrainedObject.Move(dc, constrainedObject.GetX(), y3, False)
return changed
elif self._constraintType == CONSTRAINT_MIDALIGNED_BOTTOM:
changed = False
for constrainedObject in self._constrainedObjects:
y3 = y + minHeight / 2.0
if not self.Equals(y3, constrainedObject.GetY()):
changed = True
constrainedObject.Move(dc, constrainedObject.GetX(), y3, False)
return changed
return False
OGLConstraint = wx.deprecated(Constraint,
"The OGLConstraint name is deprecated, use `ogl.Constraint` instead.")
class CompositeShape(RectangleShape):
"""
The :class:`CompositeShape` is a shape with a list of child objects, and a
list of size and positioning constraints between the children.
"""
def __init__(self):
"""
Default class constructor.
"""
RectangleShape.__init__(self, 100.0, 100.0)
self._oldX = self._xpos
self._oldY = self._ypos
self._constraints = []
self._divisions = [] # In case it's a container
def OnDraw(self, dc):
"""The draw handler."""
x1 = self._xpos - self._width / 2.0
y1 = self._ypos - self._height / 2.0
if self._shadowMode != SHADOW_NONE:
if self._shadowBrush:
dc.SetBrush(self._shadowBrush)
dc.SetPen(wx.Pen(wx.WHITE, 1, wx.PENSTYLE_TRANSPARENT))
if self._cornerRadius:
dc.DrawRoundedRectangle(x1 + self._shadowOffsetX, y1 + self._shadowOffsetY, self._width, self._height, self._cornerRadius)
else:
dc.DrawRectangle(x1 + self._shadowOffsetX, y1 + self._shadowOffsetY, self._width, self._height)
# For debug purposes /pi
#dc.DrawRectangle(x1, y1, self._width, self._height)
def OnDrawContents(self, dc):
"""The draw contents handler."""
for object in self._children:
object.Draw(dc)
object.DrawLinks(dc)
Shape.OnDrawContents(self, dc)
def OnMovePre(self, dc, x, y, old_x, old_y, display = True):
"""The move 'pre' handler."""
diffX = x - old_x
diffY = y - old_y
for object in self._children:
object.Erase(dc)
object.Move(dc, object.GetX() + diffX, object.GetY() + diffY, display)
return True
def OnErase(self, dc):
"""The erase handler."""
RectangleShape.OnErase(self, dc)
for object in self._children:
object.Erase(dc)
def OnDragLeft(self, draw, x, y, keys = 0, attachment = 0):
"""The drag left handler."""
xx, yy = self._canvas.Snap(x, y)
offsetX = xx - _objectStartX
offsetY = yy - _objectStartY
# use the DCOverlay stuff, note that drawing is done to the ClientDC
dc = wx.ClientDC(self.GetCanvas())
odc = wx.DCOverlay(self.GetCanvas()._Overlay, dc)
dc.SetLogicalFunction(OGLRBLF)
dottedPen = wx.Pen(wx.Colour(0, 0, 0), 1, wx.PENSTYLE_DOT)
dc.SetPen(dottedPen)
dc.SetBrush(wx.TRANSPARENT_BRUSH)
self.GetEventHandler().OnDrawOutline(dc, self.GetX() + offsetX, self.GetY() + offsetY, self.GetWidth(), self.GetHeight())
def OnBeginDragLeft(self, x, y, keys = 0, attachment = 0):
"""The begin drag left handler."""
global _objectStartX, _objectStartY
_objectStartX = x
_objectStartY = y
# use the DCOverlay stuff, note that drawing is done to the ClientDC
dc = wx.ClientDC(self.GetCanvas())
odc = wx.DCOverlay(self.GetCanvas()._Overlay, dc)
dc.SetLogicalFunction(OGLRBLF)
dottedPen = wx.Pen(wx.Colour(0, 0, 0), 1, wx.PENSTYLE_DOT)
dc.SetPen(dottedPen)
dc.SetBrush(wx.TRANSPARENT_BRUSH)
self._canvas.CaptureMouse()
xx, yy = self._canvas.Snap(x, y)
offsetX = xx - _objectStartX
offsetY = yy - _objectStartY
self.GetEventHandler().OnDrawOutline(dc, self.GetX() + offsetX, self.GetY() + offsetY, self.GetWidth(), self.GetHeight())
def OnEndDragLeft(self, x, y, keys = 0, attachment = 0):
"""The end drag left handler."""
if self._canvas.HasCapture():
self._canvas.ReleaseMouse()
if not self._draggable:
if self._parent:
self._parent.GetEventHandler().OnEndDragLeft(x, y, keys, 0)
return
# use the DCOverlay stuff, note that drawing is done to the ClientDC
dc = wx.ClientDC(self.GetCanvas())
odc = wx.DCOverlay(self.GetCanvas()._Overlay, dc)
dc.SetLogicalFunction(wx.COPY)
self.Erase(dc)
xx, yy = self._canvas.Snap(x, y)
offsetX = xx - _objectStartX
offsetY = yy - _objectStartY
self.Move(dc, self.GetX() + offsetX, self.GetY() + offsetY)
if self._canvas and not self._canvas.GetQuickEditMode():
self._canvas.Redraw(dc)
def OnRightClick(self, x, y, keys = 0, attachment = 0):
"""The right click handler.
:note: If we get a ctrl-right click, this means send the message to
the division, so we can invoke a user interface for dealing
with regions.
"""
if keys & KEY_CTRL:
for division in self._divisions:
hit = division.HitTest(x, y)
if hit:
division.GetEventHandler().OnRightClick(x, y, keys, hit[0])
break
def SetSize(self, w, h, recursive = True):
"""
Set the size.
:param `w`: the width
:param `h`: the heigth
:param `recursive`: size the children recursively
"""
self.SetAttachmentSize(w, h)
xScale = float(w) / max(1, self.GetWidth())
yScale = float(h) / max(1, self.GetHeight())
self._width = w
self._height = h
if not recursive:
return
dc = wx.MemoryDC()
dc.SelectObject(self.GetCanvas()._Buffer)
for object in self._children:
# Scale the position first
newX = (object.GetX() - self.GetX()) * xScale + self.GetX()
newY = (object.GetY() - self.GetY()) * yScale + self.GetY()
object.Show(False)
object.Move(dc, newX, newY)
object.Show(True)
# Now set the scaled size
xbound, ybound = object.GetBoundingBoxMax()
if not object.GetFixedWidth():
xbound *= xScale
if not object.GetFixedHeight():
ybound *= yScale
object.SetSize(xbound, ybound)
self.SetDefaultRegionSize()
def AddChild(self, child, addAfter = None):
"""
Add a shape to the composite. If addAfter is not None, the shape
will be added after addAfter.
:param `child`: an instance of :class:`~lib.ogl.Shape`
:param `addAfter`: an instance of :class:`~lib.ogl.Shape`
"""
self._children.append(child)
child.SetParent(self)
if self._canvas:
# Ensure we add at the right position
if addAfter:
child.RemoveFromCanvas(self._canvas)
child.AddToCanvas(self._canvas, addAfter)
def RemoveChild(self, child):
"""
Removes the child from the composite and any constraint
relationships, but does not delete the child.
:param `child`: an instance of :class:`~lib.ogl.Shape`
"""
if child in self._children:
self._children.remove(child)
if child in self._divisions:
self._divisions.remove(child)
self.RemoveChildFromConstraints(child)
child.SetParent(None)
def Delete(self):
"""
Fully disconnect this shape from parents, children, the
canvas, etc.
"""
for child in self.GetChildren():
self.RemoveChild(child)
child.Delete()
RectangleShape.Delete(self)
self._constraints = []
self._divisions = []
def DeleteConstraintsInvolvingChild(self, child):
"""
This function deletes constraints which mention the given child.
Used when deleting a child from the composite.
:param `child`: an instance of :class:`~lib.ogl.Shape`
"""
for constraint in self._constraints:
if constraint._constrainingObject == child or child in constraint._constrainedObjects:
self._constraints.remove(constraint)
def RemoveChildFromConstraints(self, child):
"""
Removes the child from the constraints.
:param `child`: an instance of :class:`~lib.ogl.Shape`
"""
for constraint in self._constraints:
if child in constraint._constrainedObjects:
constraint._constrainedObjects.remove(child)
if constraint._constrainingObject == child:
constraint._constrainingObject = None
# Delete the constraint if no participants left
if not constraint._constrainingObject:
self._constraints.remove(constraint)
def AddConstraint(self, constraint):
"""
Adds a constraint to the composite.
:param `constraint`: an instance of :class:`~lib.ogl.Shape`
"""
self._constraints.append(constraint)
if constraint._constraintId == 0:
constraint._constraintId = wx.NewId()
return constraint
def AddSimpleConstraint(self, type, constraining, constrained):
"""
Add a constraint of the given type to the composite.
:param `type`: see :class:`ConstraintType` for valid types
:param `constraining`: the constraining :class:`Shape`
:param `constrained`: the constrained :class:`Shape`
"""
constraint = Constraint(type, constraining, constrained)
if constraint._constraintId == 0:
constraint._constraintId = wx.NewId()
self._constraints.append(constraint)
return constraint
def FindConstraint(self, cId):
"""
Finds the constraint with the given id.
:param `cId`: The constraint id to find.
:returns: None or a tuple of the constraint and the actual composite the
constraint was in, in case that composite was a descendant of
this composit.
"""
for constraint in self._constraints:
if constraint._constraintId == cId:
return constraint, self
# If not found, try children
for child in self._children:
if isinstance(child, CompositeShape):
constraint = child.FindConstraint(cId)
if constraint:
return constraint[0], child
return None
def DeleteConstraint(self, constraint):
"""
Deletes constraint from composite.
:param `constraint`: the constraint to delete
"""
self._constraints.remove(constraint)
def CalculateSize(self):
"""
Calculates the size and position of the composite based on
child sizes and positions.
"""
maxX = -999999.9
maxY = -999999.9
minX = 999999.9
minY = 999999.9
for child in self._children:
# Recalculate size of composite objects because may not conform
# to size it was set to - depends on the children.
if isinstance(child, CompositeShape):
child.CalculateSize()
w, h = child.GetBoundingBoxMax()
if child.GetX() + w / 2.0 > maxX:
maxX = child.GetX() + w / 2.0
if child.GetX() - w / 2.0 < minX:
minX = child.GetX() - w / 2.0
if child.GetY() + h / 2.0 > maxY:
maxY = child.GetY() + h / 2.0
if child.GetY() - h / 2.0 < minY:
minY = child.GetY() - h / 2.0
self._width = maxX - minX
self._height = maxY - minY
self._xpos = self._width / 2.0 + minX
self._ypos = self._height / 2.0 + minY
def Recompute(self):
"""
Recomputes any constraints associated with the object. If `False` is
returned, the constraints could not be satisfied (there was an
inconsistency).
"""
noIterations = 0
changed = True
while changed and noIterations < 500:
changed = self.Constrain()
noIterations += 1
return not changed
def Constrain(self):
"""
Constrain the children.
:returns: True if constained otherwise False
"""
self.CalculateSize()
changed = False
for child in self._children:
if isinstance(child, CompositeShape) and child.Constrain():
changed = True
for constraint in self._constraints:
if constraint.Evaluate():
changed = True
return changed
def MakeContainer(self):
"""
Makes this composite into a container by creating one child
DivisionShape.
"""
division = self.OnCreateDivision()
self._divisions.append(division)
self.AddChild(division)
division.SetSize(self._width, self._height)
dc = wx.MemoryDC()
dc.SelectObject(self.GetCanvas()._Buffer)
division.Move(dc, self.GetX(), self.GetY())
self.Recompute()
division.Show(True)
def OnCreateDivision(self):
"""Create division handler."""
return DivisionShape()
def FindContainerImage(self):
"""
Finds the image used to visualize a container. This is any child of
the composite that is not in the divisions list.
"""
for child in self._children:
if child in self._divisions:
return child
return None
def ContainsDivision(self, division):
"""
Check if division is descendant.
:param `division`: divison to check
:returns: `True` if division is a descendant of this container.
"""
if division in self._divisions:
return True
for child in self._children:
if isinstance(child, CompositeShape):
return child.ContainsDivision(division)
return False
def GetDivisions(self):
"""Return the list of divisions."""
return self._divisions
def GetConstraints(self):
"""Return the list of constraints."""
return self._constraints
DIVISION_SIDE_NONE =0
DIVISION_SIDE_LEFT =1
DIVISION_SIDE_TOP =2
DIVISION_SIDE_RIGHT =3
DIVISION_SIDE_BOTTOM =4
originalX = 0.0
originalY = 0.0
originalW = 0.0
originalH = 0.0
class DivisionControlPoint(ControlPoint):
def __init__(self, the_canvas, object, size, the_xoffset, the_yoffset, the_type):
ControlPoint.__init__(self, the_canvas, object, size, the_xoffset, the_yoffset, the_type)
self.SetEraseObject(False)
# Implement resizing of canvas object
def OnDragLeft(self, draw, x, y, keys = 0, attachment = 0):
ControlPoint.OnDragLeft(self, draw, x, y, keys, attachment)
def OnBeginDragLeft(self, x, y, keys = 0, attachment = 0):
global originalX, originalY, originalW, originalH
originalX = self._shape.GetX()
originalY = self._shape.GetY()
originalW = self._shape.GetWidth()
originalH = self._shape.GetHeight()
ControlPoint.OnBeginDragLeft(self, x, y, keys, attachment)
def OnEndDragLeft(self, x, y, keys = 0, attachment = 0):
ControlPoint.OnEndDragLeft(self, x, y, keys, attachment)
dc = wx.MemoryDC()
dc.SelectObject(self.GetCanvas()._Buffer)
division = self._shape
divisionParent = division.GetParent()
# Need to check it's within the bounds of the parent composite
x1 = divisionParent.GetX() - divisionParent.GetWidth() / 2.0
y1 = divisionParent.GetY() - divisionParent.GetHeight() / 2.0
x2 = divisionParent.GetX() + divisionParent.GetWidth() / 2.0
y2 = divisionParent.GetY() + divisionParent.GetHeight() / 2.0
# Need to check it has not made the division zero or negative
# width / height
dx1 = division.GetX() - division.GetWidth() / 2.0
dy1 = division.GetY() - division.GetHeight() / 2.0
dx2 = division.GetX() + division.GetWidth() / 2.0
dy2 = division.GetY() + division.GetHeight() / 2.0
success = True
if division.GetHandleSide() == DIVISION_SIDE_LEFT:
if x <= x1 or x >= x2 or x >= dx2:
success = False
# Try it out first...
elif not division.ResizeAdjoining(DIVISION_SIDE_LEFT, x, True):
success = False
else:
division.ResizeAdjoining(DIVISION_SIDE_LEFT, x, False)
elif division.GetHandleSide() == DIVISION_SIDE_TOP:
if y <= y1 or y >= y2 or y >= dy2:
success = False
elif not division.ResizeAdjoining(DIVISION_SIDE_TOP, y, True):
success = False
else:
division.ResizingAdjoining(DIVISION_SIDE_TOP, y, False)
elif division.GetHandleSide() == DIVISION_SIDE_RIGHT:
if x <= x1 or x >= x2 or x <= dx1:
success = False
elif not division.ResizeAdjoining(DIVISION_SIDE_RIGHT, x, True):
success = False
else:
division.ResizeAdjoining(DIVISION_SIDE_RIGHT, x, False)
elif division.GetHandleSide() == DIVISION_SIDE_BOTTOM:
if y <= y1 or y >= y2 or y <= dy1:
success = False
elif not division.ResizeAdjoining(DIVISION_SIDE_BOTTOM, y, True):
success = False
else:
division.ResizeAdjoining(DIVISION_SIDE_BOTTOM, y, False)
if not success:
division.SetSize(originalW, originalH)
division.Move(dc, originalX, originalY)
divisionParent.Draw(dc)
division.GetEventHandler().OnDrawControlPoints(dc)
DIVISION_MENU_SPLIT_HORIZONTALLY =1
DIVISION_MENU_SPLIT_VERTICALLY =2
DIVISION_MENU_EDIT_LEFT_EDGE =3
DIVISION_MENU_EDIT_TOP_EDGE =4
DIVISION_MENU_EDIT_RIGHT_EDGE =5
DIVISION_MENU_EDIT_BOTTOM_EDGE =6
DIVISION_MENU_DELETE_ALL =7
class PopupDivisionMenu(wx.Menu):
def __init__(self):
wx.Menu.__init__(self)
self.Append(DIVISION_MENU_SPLIT_HORIZONTALLY,"Split horizontally")
self.Append(DIVISION_MENU_SPLIT_VERTICALLY,"Split vertically")
self.AppendSeparator()
self.Append(DIVISION_MENU_EDIT_LEFT_EDGE,"Edit left edge")
self.Append(DIVISION_MENU_EDIT_TOP_EDGE,"Edit top edge")
wx.EVT_MENU_RANGE(self, DIVISION_MENU_SPLIT_HORIZONTALLY, DIVISION_MENU_EDIT_BOTTOM_EDGE, self.OnMenu)
def SetClientData(self, data):
self._clientData = data
def GetClientData(self):
return self._clientData
def OnMenu(self, event):
division = self.GetClientData()
if event.GetId() == DIVISION_MENU_SPLIT_HORIZONTALLY:
division.Divide(wx.HORIZONTAL)
elif event.GetId() == DIVISION_MENU_SPLIT_VERTICALLY:
division.Divide(wx.VERTICAL)
elif event.GetId() == DIVISION_MENU_EDIT_LEFT_EDGE:
division.EditEdge(DIVISION_SIDE_LEFT)
elif event.GetId() == DIVISION_MENU_EDIT_TOP_EDGE:
division.EditEdge(DIVISION_SIDE_TOP)
class DivisionShape(CompositeShape):
"""
A :class:`DivisionShape` class is a composite with special properties,
to be used for containment. It's a subdivision of a container.
A containing node image consists of a composite with a main child shape
such as rounded rectangle, plus a list of division objects.
It needs to be a composite because a division contains pieces
of diagram.
:note: A container has at least one wxDivisionShape for consistency.
This can be subdivided, so it turns into two objects, then each of
these can be subdivided, etc.
"""
def __init__(self):
"""
Default class constructor.
"""
CompositeShape.__init__(self)
self.SetSensitivityFilter(OP_CLICK_LEFT | OP_CLICK_RIGHT | OP_DRAG_RIGHT)
self.SetCentreResize(False)
self.SetAttachmentMode(True)
self._leftSide = None
self._rightSide = None
self._topSide = None
self._bottomSide = None
self._handleSide = DIVISION_SIDE_NONE
self._leftSidePen = wx.BLACK_PEN
self._topSidePen = wx.BLACK_PEN
self._leftSideColour = "BLACK"
self._topSideColour = "BLACK"
self._leftSideStyle = "Solid"
self._topSideStyle = "Solid"
self.ClearRegions()
def SetLeftSide(self, shape):
"""Set the the division on the left side of this division."""
self._leftSide = shape
def SetTopSide(self, shape):
"""Set the the division on the top side of this division."""
self._topSide = shape
def SetRightSide(self, shape):
"""Set the the division on the right side of this division."""
self._rightSide = shape
def SetBottomSide(self, shape):
"""Set the the division on the bottom side of this division."""
self._bottomSide = shape
def GetLeftSide(self):
"""Return the division on the left side of this division."""
return self._leftSide
def GetTopSide(self):
"""Return the division on the top side of this division."""
return self._topSide
def GetRightSide(self):
"""Return the division on the right side of this division."""
return self._rightSide
def GetBottomSide(self):
"""Return the division on the bottom side of this division."""
return self._bottomSide
def SetHandleSide(self, side):
"""
Sets the side which the handle appears on.
:param `side`: Either DIVISION_SIDE_LEFT or DIVISION_SIDE_TOP.
"""
self._handleSide = side
def GetHandleSide(self):
"""Return the side which the handle appears on."""
return self._handleSide
def SetLeftSidePen(self, pen):
"""Set the colour for drawing the left side of the division."""
self._leftSidePen = pen
def SetTopSidePen(self, pen):
"""Set the colour for drawing the top side of the division."""
self._topSidePen = pen
def GetLeftSidePen(self):
"""Return the pen used for drawing the left side of the division."""
return self._leftSidePen
def GetTopSidePen(self):
"""Return the pen used for drawing the top side of the division."""
return self._topSidePen
def GetLeftSideColour(self):
"""Return the colour used for drawing the left side of the division."""
return self._leftSideColour
def GetTopSideColour(self):
"""Return the colour used for drawing the top side of the division."""
return self._topSideColour
def SetLeftSideColour(self, colour):
"""Set the colour for drawing the left side of the division."""
self._leftSideColour = colour
def SetTopSideColour(self, colour):
"""Set the colour for drawing the top side of the division."""
self._topSideColour = colour
def GetLeftSideStyle(self):
"""Return the style used for the left side of the division."""
return self._leftSideStyle
def GetTopSideStyle(self):
"""Return the style used for the top side of the division."""
return self._topSideStyle
def SetLeftSideStyle(self, style):
"""
Set the left side style.
:param `style`: valid values ???
"""
self._leftSideStyle = style
def SetTopSideStyle(self, style):
"""
Set the top side style.
:param `style`: valid values ???
"""
self._lefttopStyle = style
def OnDraw(self, dc):
"""The draw handler."""
dc.SetBrush(wx.TRANSPARENT_BRUSH)
dc.SetBackgroundMode(wx.TRANSPARENT)
x1 = self.GetX() - self.GetWidth() / 2.0
y1 = self.GetY() - self.GetHeight() / 2.0
x2 = self.GetX() + self.GetWidth() / 2.0
y2 = self.GetY() + self.GetHeight() / 2.0
# Should subtract 1 pixel if drawing under Windows
if sys.platform[:3] == "win":
y2 -= 1
if self._leftSide:
dc.SetPen(self._leftSidePen)
dc.DrawLine(x1, y2, x1, y1)
if self._topSide:
dc.SetPen(self._topSidePen)
dc.DrawLine(x1, y1, x2, y1)
# For testing purposes, draw a rectangle so we know
# how big the division is.
#dc.SetBrush(wx.RED_BRUSH)
#dc.DrawRectangle(x1, y1, self.GetWidth(), self.GetHeight())
def OnDrawContents(self, dc):
"""The draw contens handler."""
CompositeShape.OnDrawContents(self, dc)
def OnMovePre(self, dc, x, y, oldx, oldy, display = True):
"""The move 'pre' handler."""
diffX = x - oldx
diffY = y - oldy
for object in self._children:
object.Erase(dc)
object.Move(dc, object.GetX() + diffX, object.GetY() + diffY, display)
return True
def OnDragLeft(self, draw, x, y, keys = 0, attachment = 0):
"""The drag left handler."""
if self._sensitivity & OP_DRAG_LEFT != OP_DRAG_LEFT:
if self._parent:
hit = self._parent.HitTest(x, y)
if hit:
attachment, dist = hit
self._parent.GetEventHandler().OnDragLeft(draw, x, y, keys, attachment)
return
Shape.OnDragLeft(self, draw, x, y, keys, attachment)
def OnBeginDragLeft(self, x, y, keys = 0, attachment = 0):
"""The begin drag left handler."""
if self._sensitivity & OP_DRAG_LEFT != OP_DRAG_LEFT:
if self._parent:
hit = self._parent.HitTest(x, y)
if hit:
attachment, dist = hit
self._parent.GetEventHandler().OnBeginDragLeft(x, y, keys, attachment)
return
Shape.OnBeginDragLeft(x, y, keys, attachment)
def OnEndDragLeft(self, x, y, keys = 0, attachment = 0):
"""The end drag left handler."""
if self._canvas.HasCapture():
self._canvas.ReleaseMouse()
if self._sensitivity & OP_DRAG_LEFT != OP_DRAG_LEFT:
if self._parent:
hit = self._parent.HitTest(x, y)
if hit:
attachment, dist = hit
self._parent.GetEventHandler().OnEndDragLeft(x, y, keys, attachment)
return
dc = wx.MemoryDC()
dc.SelectObject(self.GetCanvas()._Buffer)
dc.SetLogicalFunction(wx.COPY)
self._xpos, self._ypos = self._canvas.Snap(self._xpos, self._ypos)
self.GetEventHandler().OnMovePre(dc, x, y, self._oldX, self._oldY)
self.ResetControlPoints()
self.Draw(dc)
self.MoveLinks(dc)
self.GetEventHandler().OnDrawControlPoints(dc)
if self._canvas and not self._canvas.GetQuickEditMode():
self._canvas.Redraw(dc)
def SetSize(self, w, h, recursive = True):
"""
Set the size.
:param `w`: the width
:param `h`: the heigth
:param `recursive`: `True` recurse all children
"""
self._width = w
self._height = h
RectangleShape.SetSize(self, w, h, recursive)
def CalculateSize(self):
"""not implemented???"""
pass
# Experimental
def OnRightClick(self, x, y, keys = 0, attachment = 0):
"""The right click handler."""
if keys & KEY_CTRL:
self.PopupMenu(x, y)
else:
if self._parent:
hit = self._parent.HitTest(x, y)
if hit:
attachment, dist = hit
self._parent.GetEventHandler().OnRightClick(x, y, keys, attachment)
def Divide(self, direction):
"""Divide this division into two further divisions.
:param `direction`: `wx.HORIZONTAL` for horizontal or `wx.VERTICAL` for
vertical division.
"""
# Calculate existing top-left, bottom-right
x1 = self.GetX() - self.GetWidth() / 2.0
y1 = self.GetY() - self.GetHeight() / 2.0
compositeParent = self.GetParent()
oldWidth = self.GetWidth()
oldHeight = self.GetHeight()
if self.Selected():
self.Select(False)
dc = wx.MemoryDC()
dc.SelectObject(self.GetCanvas()._Buffer)
if direction == wx.VERTICAL:
# Dividing vertically means notionally putting a horizontal
# line through it.
# Break existing piece into two.
newXPos1 = self.GetX()
newYPos1 = y1 + self.GetHeight() / 4.0
newXPos2 = self.GetX()
newYPos2 = y1 + 3 * self.GetHeight() / 4.0
newDivision = compositeParent.OnCreateDivision()
newDivision.Show(True)
self.Erase(dc)
# Anything adjoining the bottom of this division now adjoins the
# bottom of the new division.
for obj in compositeParent.GetDivisions():
if obj.GetTopSide() == self:
obj.SetTopSide(newDivision)
newDivision.SetTopSide(self)
newDivision.SetBottomSide(self._bottomSide)
newDivision.SetLeftSide(self._leftSide)
newDivision.SetRightSide(self._rightSide)
self._bottomSide = newDivision
compositeParent.GetDivisions().append(newDivision)
# CHANGE: Need to insert this division at start of divisions in the
# object list, because e.g.:
# 1) Add division
# 2) Add contained object
# 3) Add division
# Division is now receiving mouse events _before_ the contained
# object, because it was added last (on top of all others)
# Add after the image that visualizes the container
compositeParent.AddChild(newDivision, compositeParent.FindContainerImage())
self._handleSide = DIVISION_SIDE_BOTTOM
newDivision.SetHandleSide(DIVISION_SIDE_TOP)
self.SetSize(oldWidth, oldHeight / 2.0)
self.Move(dc, newXPos1, newYPos1)
newDivision.SetSize(oldWidth, oldHeight / 2.0)
newDivision.Move(dc, newXPos2, newYPos2)
else:
# Dividing horizontally means notionally putting a vertical line
# through it.
# Break existing piece into two.
newXPos1 = x1 + self.GetWidth() / 4.0
newYPos1 = self.GetY()
newXPos2 = x1 + 3 * self.GetWidth() / 4.0
newYPos2 = self.GetY()
newDivision = compositeParent.OnCreateDivision()
newDivision.Show(True)
self.Erase(dc)
# Anything adjoining the left of this division now adjoins the
# left of the new division.
for obj in compositeParent.GetDivisions():
if obj.GetLeftSide() == self:
obj.SetLeftSide(newDivision)
newDivision.SetTopSide(self._topSide)
newDivision.SetBottomSide(self._bottomSide)
newDivision.SetLeftSide(self)
newDivision.SetRightSide(self._rightSide)
self._rightSide = newDivision
compositeParent.GetDivisions().append(newDivision)
compositeParent.AddChild(newDivision, compositeParent.FindContainerImage())
self._handleSide = DIVISION_SIDE_RIGHT
newDivision.SetHandleSide(DIVISION_SIDE_LEFT)
self.SetSize(oldWidth / 2.0, oldHeight)
self.Move(dc, newXPos1, newYPos1)
newDivision.SetSize(oldWidth / 2.0, oldHeight)
newDivision.Move(dc, newXPos2, newYPos2)
if compositeParent.Selected():
compositeParent.DeleteControlPoints(dc)
compositeParent.MakeControlPoints()
compositeParent.MakeMandatoryControlPoints()
compositeParent.Draw(dc)
return True
def MakeControlPoints(self):
"""Make control points."""
self.MakeMandatoryControlPoints()
def MakeMandatoryControlPoints(self):
"""Make mandatory control points."""
maxX, maxY = self.GetBoundingBoxMax()
x = y = 0.0
direction = 0
if self._handleSide == DIVISION_SIDE_LEFT:
x = -maxX / 2.0
direction = CONTROL_POINT_HORIZONTAL
elif self._handleSide == DIVISION_SIDE_TOP:
y = -maxY / 2.0
direction = CONTROL_POINT_VERTICAL
elif self._handleSide == DIVISION_SIDE_RIGHT:
x = maxX / 2.0
direction = CONTROL_POINT_HORIZONTAL
elif self._handleSide == DIVISION_SIDE_BOTTOM:
y = maxY / 2.0
direction = CONTROL_POINT_VERTICAL
if self._handleSide != DIVISION_SIDE_NONE:
control = DivisionControlPoint(self._canvas, self, CONTROL_POINT_SIZE, x, y, direction)
self._canvas.AddShape(control)
self._controlPoints.append(control)
def ResetControlPoints(self):
"""Reset control points."""
self.ResetMandatoryControlPoints()
def ResetMandatoryControlPoints(self):
"""Reset mandatory control points."""
if not self._controlPoints:
return
maxX, maxY = self.GetBoundingBoxMax()
node = self._controlPoints[0]
if self._handleSide == DIVISION_SIDE_LEFT and node:
node._xoffset = -maxX / 2.0
node._yoffset = 0.0
if self._handleSide == DIVISION_SIDE_TOP and node:
node._xoffset = 0.0
node._yoffset = -maxY / 2.0
if self._handleSide == DIVISION_SIDE_RIGHT and node:
node._xoffset = maxX / 2.0
node._yoffset = 0.0
if self._handleSide == DIVISION_SIDE_BOTTOM and node:
node._xoffset = 0.0
node._yoffset = maxY / 2.0
def AdjustLeft(self, left, test):
"""
Adjust a side.
:param `left`: desired left position ???
:param `test`: if `True` just a test
:returns: `False` if it's not physically possible to adjust it to
this point.
"""
x2 = self.GetX() + self.GetWidth() / 2.0
if left >= x2:
return False
if test:
return True
newW = x2 - left
newX = left + newW / 2.0
self.SetSize(newW, self.GetHeight())
dc = wx.MemoryDC()
dc.SelectObject(self.GetCanvas()._Buffer)
self.Move(dc, newX, self.GetY())
return True
def AdjustRight(self, right, test):
"""
Adjust a side.
:param `right`: desired right position ???
:param `test`: if `True` just a test
:returns: `False` if it's not physically possible to adjust it to
this point.
"""
x1 = self.GetX() - self.GetWidth() / 2.0
if right <= x1:
return False
if test:
return True
newW = right - x1
newX = x1 + newW / 2.0
self.SetSize(newW, self.GetHeight())
dc = wx.MemoryDC()
dc.SelectObject(self.GetCanvas()._Buffer)
self.Move(dc, newX, self.GetY())
return True
def AdjustTop(self, top, test):
"""
Adjust a side.
:param `top`: desired top position ???
:param `test`: if `True` just a test
:returns: `False` if it's not physically possible to adjust it to
this point.
"""
y1 = self.GetY() - self.GetHeight() / 2.0
if top <= y1:
return False
if test:
return True
newH = top - y1
newY = y1 + newH / 2.0
self.SetSize(self.GetWidth(), newH)
dc = wx.MemoryDC()
dc.SelectObject(self.GetCanvas()._Buffer)
self.Move(dc, self.GetX(), newY)
return True
# Resize adjoining divisions.
# Behaviour should be as follows:
# If right edge moves, find all objects whose left edge
# adjoins this object, and move left edge accordingly.
# If left..., move ... right.
# If top..., move ... bottom.
# If bottom..., move top.
# If size goes to zero or end position is other side of start position,
# resize to original size and return.
#
def ResizeAdjoining(self, side, newPos, test):
"""
Resize adjoining divisions at the given side.
:param `side`: can be one of
======================= =======================
Side option Description
======================= =======================
`DIVISION_SIDE_NONE` no side
`DIVISION_SIDE_LEFT` Left side
`DIVISION_SIDE_TOP` Top side
`DIVISION_SIDE_RIGHT` Right side
`DIVISION_SIDE_BOTTOM` Bottom side
======================= =======================
:param `newPos`: new position
:param `test`: if `True`, just see whether it's possible for each
adjoining region, returning `False` if it's not.
"""
divisionParent = self.GetParent()
for division in divisionParent.GetDivisions():
if side == DIVISION_SIDE_LEFT:
if division._rightSide == self:
success = division.AdjustRight(newPos, test)
if not success and test:
return False
elif side == DIVISION_SIDE_TOP:
if division._bottomSide == self:
success = division.AdjustBottom(newPos, test)
if not success and test:
return False
elif side == DIVISION_SIDE_RIGHT:
if division._leftSide == self:
success = division.AdjustLeft(newPos, test)
if not success and test:
return False
elif side == DIVISION_SIDE_BOTTOM:
if division._topSide == self:
success = division.AdjustTop(newPos, test)
if not success and test:
return False
return True
def EditEdge(self, side):
print("EditEdge() not implemented.")
def PopupMenu(self, x, y):
"""Popup menu handler."""
menu = PopupDivisionMenu()
menu.SetClientData(self)
if self._leftSide:
menu.Enable(DIVISION_MENU_EDIT_LEFT_EDGE, True)
else:
menu.Enable(DIVISION_MENU_EDIT_LEFT_EDGE, False)
if self._topSide:
menu.Enable(DIVISION_MENU_EDIT_TOP_EDGE, True)
else:
menu.Enable(DIVISION_MENU_EDIT_TOP_EDGE, False)
x1, y1 = self._canvas.GetViewStart()
unit_x, unit_y = self._canvas.GetScrollPixelsPerUnit()
dc = wx.MemoryDC()
dc.SelectObject(self.GetCanvas()._Buffer)
mouse_x = dc.LogicalToDeviceX(x - x1 * unit_x)
mouse_y = dc.LogicalToDeviceY(y - y1 * unit_y)
self._canvas.PopupMenu(menu, (mouse_x, mouse_y))
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