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) 2007: 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 wx
from dialogs.BrowseLocationsDialog import BrowseLocationsDialog
class LocationCellControl(wx.PyControl):
'''
Custom cell editor control with a text box and a button that launches
the BrowseLocationsDialog.
'''
def __init__(self, parent):
wx.Control.__init__(self, parent)
main_sizer = wx.FlexGridSizer(cols=2, hgap=0, rows=1, vgap=0)
main_sizer.AddGrowableCol(0)
main_sizer.AddGrowableRow(0)
# create location text control
self.Location = wx.TextCtrl(self, size=wx.Size(0, -1),
style=wx.TE_PROCESS_ENTER)
self.Location.Bind(wx.EVT_KEY_DOWN, self.OnLocationChar)
main_sizer.AddWindow(self.Location, flag=wx.GROW)
# create browse button
self.BrowseButton = wx.Button(self, label='...', size=wx.Size(30, -1))
self.BrowseButton.Bind(wx.EVT_BUTTON, self.OnBrowseButtonClick)
main_sizer.AddWindow(self.BrowseButton, flag=wx.GROW)
self.Bind(wx.EVT_SIZE, self.OnSize)
self.SetSizer(main_sizer)
self.Controller = None
self.VarType = None
self.Default = False
def __del__(self):
self.Controller = None
def SetController(self, controller):
self.Controller = controller
def SetVarType(self, vartype):
self.VarType = vartype
def GetVarType(self):
return self.VarType
def SetValue(self, value):
self.Default = value
self.Location.SetValue(value)
def GetValue(self):
return self.Location.GetValue()
def OnSize(self, event):
self.Layout()
def OnBrowseButtonClick(self, event):
# pop up the location browser dialog
dialog = BrowseLocationsDialog(self, self.VarType, self.Controller)
if dialog.ShowModal() == wx.ID_OK:
infos = dialog.GetValues()
else:
infos = None
dialog.Destroy()
if infos is not None:
location = infos["location"]
# set the location
if not infos["location"].startswith("%"):
dialog = wx.SingleChoiceDialog(self,
_("Select a variable class:"), _("Variable class"),
[_("Input"), _("Output"), _("Memory")],
wx.DEFAULT_DIALOG_STYLE|wx.OK|wx.CANCEL)
if dialog.ShowModal() == wx.ID_OK:
selected = dialog.GetSelection()
else:
selected = None
dialog.Destroy()
if selected is None:
self.Location.SetFocus()
return
if selected == 0:
location = "%I" + location
elif selected == 1:
location = "%Q" + location
else:
location = "%M" + location
self.Location.SetValue(location)
self.VarType = infos["IEC_type"]
self.Location.SetFocus()
def OnLocationChar(self, event):
keycode = event.GetKeyCode()
if keycode in [wx.WXK_RETURN, wx.WXK_TAB]:
self.Parent.Parent.ProcessEvent(event)
elif keycode == wx.WXK_ESCAPE:
self.Location.SetValue(self.Default)
self.Parent.Parent.CloseEditControl()
else:
event.Skip()
def SetInsertionPoint(self, i):
self.Location.SetInsertionPoint(i)
def SetFocus(self):
self.Location.SetFocus()
class LocationCellEditor(wx.grid.PyGridCellEditor):
'''
Grid cell editor that uses LocationCellControl to display a browse button.
'''
def __init__(self, table, controller):
wx.grid.PyGridCellEditor.__init__(self)
self.Table = table
self.Controller = controller
def __del__(self):
self.CellControl = None
self.Controller = None
def Create(self, parent, id, evt_handler):
self.CellControl = LocationCellControl(parent)
self.SetControl(self.CellControl)
if evt_handler:
self.CellControl.PushEventHandler(evt_handler)
def BeginEdit(self, row, col, grid):
self.CellControl.Enable()
self.CellControl.SetController(self.Controller)
self.CellControl.SetValue(self.Table.GetValueByName(row, 'Location'))
if isinstance(self.CellControl, LocationCellControl):
self.CellControl.SetVarType(self.Table.GetValueByName(row, 'Type'))
self.CellControl.SetFocus()
def EndEditInternal(self, row, col, grid, old_loc):
loc = self.CellControl.GetValue()
changed = loc != old_loc
if changed:
self.Table.SetValueByName(row, 'Location', loc)
self.Table.SetValueByName(row, 'Type', self.CellControl.GetVarType())
self.CellControl.Disable()
return changed
if wx.VERSION >= (3, 0, 0):
def EndEdit(self, row, col, grid, oldval):
return self.EndEditInternal(row, col, grid, oldval)
else:
def EndEdit(self, row, col, grid):
old_loc = self.Table.GetValueByName(row, 'Location')
return self.EndEditInternal(row, col, grid, old_loc)
def SetSize(self, rect):
self.CellControl.SetDimensions(rect.x + 1, rect.y,
rect.width, rect.height,
wx.SIZE_ALLOW_MINUS_ONE)
def Clone(self):
return LocationCellEditor(self.Table, self.Controller)