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# -*- coding: utf-8 -*-
#----------------------------------------------------------------------------
# Name: divided.py
# Purpose: DividedShape class
#
# Author: Pierre Hjälm (from C++ original by Julian Smart)
#
# Created: 2004-05-08
# RCS-ID: $Id$
# Copyright: (c) 2004 Pierre Hjälm - 1998 Julian Smart
# Licence: wxWindows license
#----------------------------------------------------------------------------
import sys
import wx
from _basic import ControlPoint, RectangleShape, Shape
from _oglmisc import *
class DividedShapeControlPoint(ControlPoint):
def __init__(self, the_canvas, object, region, size, the_m_xoffset, the_m_yoffset, the_type):
ControlPoint.__init__(self, the_canvas, object, size, the_m_xoffset, the_m_yoffset, the_type)
self.regionId = region
# Implement resizing of divided object division
def OnDragLeft(self, draw, x, y, keys = 0, attachment = 0):
dc = wx.ClientDC(self.GetCanvas())
self.GetCanvas().PrepareDC(dc)
dc.SetLogicalFunction(OGLRBLF)
dottedPen = wx.Pen(wx.Colour(0, 0, 0), 1, wx.DOT)
dc.SetPen(dottedPen)
dc.SetBrush(wx.TRANSPARENT_BRUSH)
dividedObject = self._shape
x1 = dividedObject.GetX() - dividedObject.GetWidth() / 2.0
y1 = y
x2 = dividedObject.GetX() + dividedObject.GetWidth() / 2.0
y2 = y
dc.DrawLine(x1, y1, x2, y2)
def OnBeginDragLeft(self, x, y, keys = 0, attachment = 0):
dc = wx.ClientDC(self.GetCanvas())
self.GetCanvas().PrepareDC(dc)
dc.SetLogicalFunction(OGLRBLF)
dottedPen = wx.Pen(wx.Colour(0, 0, 0), 1, wx.DOT)
dc.SetPen(dottedPen)
dc.SetBrush(wx.TRANSPARENT_BRUSH)
dividedObject = self._shape
x1 = dividedObject.GetX() - dividedObject.GetWidth() / 2.0
y1 = y
x2 = dividedObject.GetX() + dividedObject.GetWidth() / 2.0
y2 = y
dc.DrawLine(x1, y1, x2, y2)
self._canvas.CaptureMouse()
def OnEndDragLeft(self, x, y, keys = 0, attachment = 0):
dc = wx.ClientDC(self.GetCanvas())
self.GetCanvas().PrepareDC(dc)
dividedObject = self._shape
if not dividedObject.GetRegions()[self.regionId]:
return
thisRegion = dividedObject.GetRegions()[self.regionId]
nextRegion = None
dc.SetLogicalFunction(wx.COPY)
if self._canvas.HasCapture():
self._canvas.ReleaseMouse()
# Find the old top and bottom of this region,
# and calculate the new proportion for this region
# if legal.
currentY = dividedObject.GetY() - dividedObject.GetHeight() / 2.0
maxY = dividedObject.GetY() + dividedObject.GetHeight() / 2.0
# Save values
theRegionTop = 0
nextRegionBottom = 0
for i in range(len(dividedObject.GetRegions())):
region = dividedObject.GetRegions()[i]
proportion = region._regionProportionY
yy = currentY + dividedObject.GetHeight() * proportion
actualY = min(maxY, yy)
if region == thisRegion:
thisRegionTop = currentY
if i + 1 < len(dividedObject.GetRegions()):
nextRegion = dividedObject.GetRegions()[i + 1]
if region == nextRegion:
nextRegionBottom = actualY
currentY = actualY
if not nextRegion:
return
# Check that we haven't gone above this region or below
# next region.
if y <= thisRegionTop or y >= nextRegionBottom:
return
dividedObject.EraseLinks(dc)
# Now calculate the new proportions of this region and the next region
thisProportion = float(y - thisRegionTop) / dividedObject.GetHeight()
nextProportion = float(nextRegionBottom - y) / dividedObject.GetHeight()
thisRegion.SetProportions(0, thisProportion)
nextRegion.SetProportions(0, nextProportion)
self._yoffset = y - dividedObject.GetY()
# Now reformat text
for i, region in enumerate(dividedObject.GetRegions()):
if region.GetText():
s = region.GetText()
dividedObject.FormatText(dc, s, i)
dividedObject.SetRegionSizes()
dividedObject.Draw(dc)
dividedObject.GetEventHandler().OnMoveLinks(dc)
class DividedShape(RectangleShape):
"""A DividedShape is a rectangle with a number of vertical divisions.
Each division may have its text formatted with independent characteristics,
and the size of each division relative to the whole image may be specified.
Derived from:
RectangleShape
"""
def __init__(self, w, h):
RectangleShape.__init__(self, w, h)
self.ClearRegions()
def OnDraw(self, dc):
RectangleShape.OnDraw(self, dc)
def OnDrawContents(self, dc):
if self.GetRegions():
defaultProportion = 1.0 / len(self.GetRegions())
else:
defaultProportion = 0.0
currentY = self._ypos - self._height / 2.0
maxY = self._ypos + self._height / 2.0
leftX = self._xpos - self._width / 2.0
rightX = self._xpos + self._width / 2.0
if self._pen:
dc.SetPen(self._pen)
dc.SetTextForeground(self._textColour)
# For efficiency, don't do this under X - doesn't make
# any visible difference for our purposes.
if sys.platform[:3] == "win":
dc.SetTextBackground(self._brush.GetColour())
if self.GetDisableLabel():
return
xMargin = 2
yMargin = 2
dc.SetBackgroundMode(wx.TRANSPARENT)
for region in self.GetRegions():
dc.SetFont(region.GetFont())
dc.SetTextForeground(region.GetActualColourObject())
if region._regionProportionY < 0:
proportion = defaultProportion
else:
proportion = region._regionProportionY
y = currentY + self._height * proportion
actualY = min(maxY, y)
centreX = self._xpos
centreY = currentY + (actualY - currentY) / 2.0
DrawFormattedText(dc, region._formattedText, centreX, centreY, self._width - 2 * xMargin, actualY - currentY - 2 * yMargin, region._formatMode)
if y <= maxY and region != self.GetRegions()[-1]:
regionPen = region.GetActualPen()
if regionPen:
dc.SetPen(regionPen)
dc.DrawLine(leftX, y, rightX, y)
currentY = actualY
def SetSize(self, w, h, recursive = True):
self.SetAttachmentSize(w, h)
self._width = w
self._height = h
self.SetRegionSizes()
def SetRegionSizes(self):
"""Set all region sizes according to proportions and this object
total size.
"""
if not self.GetRegions():
return
if self.GetRegions():
defaultProportion = 1.0 / len(self.GetRegions())
else:
defaultProportion = 0.0
currentY = self._ypos - self._height / 2.0
maxY = self._ypos + self._height / 2.0
for region in self.GetRegions():
if region._regionProportionY <= 0:
proportion = defaultProportion
else:
proportion = region._regionProportionY
sizeY = proportion * self._height
y = currentY + sizeY
actualY = min(maxY, y)
centreY = currentY + (actualY - currentY) / 2.0
region.SetSize(self._width, sizeY)
region.SetPosition(0, centreY - self._ypos)
currentY = actualY
# Attachment points correspond to regions in the divided box
def GetAttachmentPosition(self, attachment, nth = 0, no_arcs = 1, line = None):
totalNumberAttachments = len(self.GetRegions()) * 2 + 2
if self.GetAttachmentMode() == ATTACHMENT_MODE_NONE or attachment >= totalNumberAttachments:
return Shape.GetAttachmentPosition(self, attachment, nth, no_arcs)
n = len(self.GetRegions())
isEnd = line and line.IsEnd(self)
left = self._xpos - self._width / 2.0
right = self._xpos + self._width / 2.0
top = self._ypos - self._height / 2.0
bottom = self._ypos + self._height / 2.0
# Zero is top, n + 1 is bottom
if attachment == 0:
y = top
if self._spaceAttachments:
if line and line.GetAlignmentType(isEnd) == LINE_ALIGNMENT_TO_NEXT_HANDLE:
# Align line according to the next handle along
point = line.GetNextControlPoint(self)
if point[0] < left:
x = left
elif point[0] > right:
x = right
else:
x = point[0]
else:
x = left + (nth + 1) * self._width / (no_arcs + 1.0)
else:
x = self._xpos
elif attachment == n + 1:
y = bottom
if self._spaceAttachments:
if line and line.GetAlignmentType(isEnd) == LINE_ALIGNMENT_TO_NEXT_HANDLE:
# Align line according to the next handle along
point = line.GetNextControlPoint(self)
if point[0] < left:
x = left
elif point[0] > right:
x = right
else:
x = point[0]
else:
x = left + (nth + 1) * self._width / (no_arcs + 1.0)
else:
x = self._xpos
else: # Left or right
isLeft = not attachment < (n + 1)
if isLeft:
i = totalNumberAttachments - attachment - 1
else:
i = attachment - 1
region = self.GetRegions()[i]
if region:
if isLeft:
x = left
else:
x = right
# Calculate top and bottom of region
top = self._ypos + region._y - region._height / 2.0
bottom = self._ypos + region._y + region._height / 2.0
# Assuming we can trust the absolute size and
# position of these regions
if self._spaceAttachments:
if line and line.GetAlignmentType(isEnd) == LINE_ALIGNMENT_TO_NEXT_HANDLE:
# Align line according to the next handle along
point = line.GetNextControlPoint(self)
if point[1] < bottom:
y = bottom
elif point[1] > top:
y = top
else:
y = point[1]
else:
y = top + (nth + 1) * region._height / (no_arcs + 1.0)
else:
y = self._ypos + region._y
else:
return False
return x, y
def GetNumberOfAttachments(self):
# There are two attachments for each region (left and right),
# plus one on the top and one on the bottom.
n = len(self.GetRegions()) * 2 + 2
maxN = n - 1
for point in self._attachmentPoints:
if point._id > maxN:
maxN = point._id
return maxN + 1
def AttachmentIsValid(self, attachment):
totalNumberAttachments = len(self.GetRegions()) * 2 + 2
if attachment >= totalNumberAttachments:
return Shape.AttachmentIsValid(self, attachment)
else:
return attachment >= 0
def MakeControlPoints(self):
RectangleShape.MakeControlPoints(self)
self.MakeMandatoryControlPoints()
def MakeMandatoryControlPoints(self):
currentY = self.GetY() - self._height / 2.0
maxY = self.GetY() + self._height / 2.0
for i, region in enumerate(self.GetRegions()):
proportion = region._regionProportionY
y = currentY + self._height * proportion
actualY = min(maxY, y)
if region != self.GetRegions()[-1]:
controlPoint = DividedShapeControlPoint(self._canvas, self, i, CONTROL_POINT_SIZE, 0, actualY - self.GetY(), 0)
self._canvas.AddShape(controlPoint)
self._controlPoints.append(controlPoint)
currentY = actualY
def ResetControlPoints(self):
# May only have the region handles, (n - 1) of them
if len(self._controlPoints) > len(self.GetRegions()) - 1:
RectangleShape.ResetControlPoints(self)
self.ResetMandatoryControlPoints()
def ResetMandatoryControlPoints(self):
currentY = self.GetY() - self._height / 2.0
maxY = self.GetY() + self._height / 2.0
i = 0
for controlPoint in self._controlPoints:
if isinstance(controlPoint, DividedShapeControlPoint):
region = self.GetRegions()[i]
proportion = region._regionProportionY
y = currentY + self._height * proportion
actualY = min(maxY, y)
controlPoint._xoffset = 0
controlPoint._yoffset = actualY - self.GetY()
currentY = actualY
i += 1
def EditRegions(self):
"""Edit the region colours and styles. Not implemented."""
print "EditRegions() is unimplemented"
def OnRightClick(self, x, y, keys = 0, attachment = 0):
if keys & KEY_CTRL:
self.EditRegions()
else:
RectangleShape.OnRightClick(self, x, y, keys, attachment)
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