fix issue with printing scheme (FBD, LD or SFC) with comment element on GNU/Linux
If you draw FBD scheme and place comment on it and then try to print
it, then no wires will be printed and comment box is empty (text is
missing). This happens only for wx.PrinterDC and not on wx.MemoryDC
that is used to draw print preview window in Beremiz IDE.
Looks like a bug in wxPython or wxWidgets.
There were found several workaround for this issue.
1) If some dc.DrawLines call is placed before dc.DrawPolygon, then the
problem is gone.
...
dc.DrawLines(polygon)
dc.DrawPolygon(polygon)
...
2) Reseting DC brush solves the problem as well (see this changeset).
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# This file is part of Beremiz, a Integrated Development Environment for
# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
# Copyright (C) 2012: Edouard TISSERANT and Laurent BESSARD
#
# See COPYING file for copyrights details.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
import os
import wx
#-------------------------------------------------------------------------------
# Library Structures
#-------------------------------------------------------------------------------
BitmapLibrary = {}
BitmapFolders = []
#-------------------------------------------------------------------------------
# Library Helpers
#-------------------------------------------------------------------------------
def AddBitmapFolder(path):
if os.path.exists(path) and os.path.isdir(path) and path not in BitmapFolders:
BitmapFolders.append(path)
def SearchBitmap(bmp_name):
for folder in BitmapFolders:
bmp_path = os.path.join(folder, bmp_name + ".png")
if os.path.isfile(bmp_path):
return wx.Bitmap(bmp_path)
return None
def GetBitmap(bmp_name1, bmp_name2=None, size=None):
bmp = BitmapLibrary.get((bmp_name1, bmp_name2, size))
if bmp is not None:
return bmp
if bmp_name2 is None:
bmp = SearchBitmap(bmp_name1)
else:
# Bitmap with two icon
bmp1 = SearchBitmap(bmp_name1)
bmp2 = SearchBitmap(bmp_name2)
if bmp1 is not None and bmp2 is not None:
# Calculate bitmap size
width = bmp1.GetWidth() + bmp2.GetWidth() - 1
height = max(bmp1.GetHeight(), bmp2.GetHeight())
# Create bitmap with both icons
bmp = wx.EmptyBitmap(width, height)
dc = wx.MemoryDC()
dc.SelectObject(bmp)
dc.Clear()
dc.DrawBitmap(bmp1, 0, 0)
dc.DrawBitmap(bmp2, bmp1.GetWidth() - 1, 0)
dc.Destroy()
elif bmp1 is not None:
bmp = bmp1
elif bmp2 is not None:
bmp = bmp2
if bmp is not None:
BitmapLibrary[(bmp_name1, bmp_name2, size)] = bmp
return bmp