#!/usr/bin/env python
# -*- coding: utf-8 -*-
#This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor
#based on the plcopen standard.
#
#Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
#See COPYING file for copyrights details.
#
#This library 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 2.1 of the License, or (at your option) any later version.
#
#This library 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 library; if not, write to the Free Software
#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import wx
from graphics import *
from controls import LibraryPanel
#-------------------------------------------------------------------------------
# Create New Block Dialog
#-------------------------------------------------------------------------------
class FBDBlockDialog(wx.Dialog):
def __init__(self, parent, controller):
wx.Dialog.__init__(self, parent,
size=wx.Size(600, 400), title=_('Block Properties'))
main_sizer = wx.FlexGridSizer(cols=1, hgap=0, rows=4, vgap=10)
main_sizer.AddGrowableCol(0)
main_sizer.AddGrowableRow(0)
column_sizer = wx.BoxSizer(wx.HORIZONTAL)
main_sizer.AddSizer(column_sizer, border=20,
flag=wx.GROW|wx.TOP|wx.LEFT|wx.RIGHT)
type_staticbox = wx.StaticBox(self, label=_('Type:'))
left_staticboxsizer = wx.StaticBoxSizer(type_staticbox, wx.VERTICAL)
column_sizer.AddSizer(left_staticboxsizer, 1, border=5,
flag=wx.GROW|wx.RIGHT)
self.LibraryPanel = LibraryPanel(self)
self.LibraryPanel.SetController(controller)
setattr(self.LibraryPanel, "_OnTreeItemSelected",
self.OnLibraryTreeItemSelected)
left_staticboxsizer.AddWindow(self.LibraryPanel, 1, border=5,
flag=wx.GROW|wx.TOP)
right_gridsizer = wx.FlexGridSizer(cols=1, hgap=0, rows=3, vgap=5)
right_gridsizer.AddGrowableCol(0)
right_gridsizer.AddGrowableRow(2)
column_sizer.AddSizer(right_gridsizer, 1, border=5,
flag=wx.GROW|wx.LEFT)
top_right_gridsizer = wx.FlexGridSizer(cols=2, hgap=0, rows=4, vgap=5)
top_right_gridsizer.AddGrowableCol(1)
right_gridsizer.AddSizer(top_right_gridsizer, flag=wx.GROW)
name_label = wx.StaticText(self, label=_('Name:'))
top_right_gridsizer.AddWindow(name_label,
flag=wx.ALIGN_CENTER_VERTICAL)
self.BlockName = wx.TextCtrl(self)
self.Bind(wx.EVT_TEXT, self.OnNameChanged, self.BlockName)
top_right_gridsizer.AddWindow(self.BlockName, flag=wx.GROW)
inputs_label = wx.StaticText(self, label=_('Inputs:'))
top_right_gridsizer.AddWindow(inputs_label,
flag=wx.ALIGN_CENTER_VERTICAL)
self.Inputs = wx.SpinCtrl(self, min=2, max=20,
style=wx.SP_ARROW_KEYS)
self.Bind(wx.EVT_SPINCTRL, self.OnInputsChanged, self.Inputs)
top_right_gridsizer.AddWindow(self.Inputs, flag=wx.GROW)
execution_order_label = wx.StaticText(self, label=_('Execution Order:'))
top_right_gridsizer.AddWindow(execution_order_label,
flag=wx.ALIGN_CENTER_VERTICAL)
self.ExecutionOrder = wx.SpinCtrl(self, min=0, style=wx.SP_ARROW_KEYS)
self.Bind(wx.EVT_SPINCTRL, self.OnExecutionOrderChanged, self.ExecutionOrder)
top_right_gridsizer.AddWindow(self.ExecutionOrder, flag=wx.GROW)
execution_control_label = wx.StaticText(self, label=_('Execution Control:'))
top_right_gridsizer.AddWindow(execution_control_label,
flag=wx.ALIGN_CENTER_VERTICAL)
self.ExecutionControl = wx.CheckBox(self)
self.Bind(wx.EVT_CHECKBOX, self.OnExecutionOrderChanged, self.ExecutionControl)
top_right_gridsizer.AddWindow(self.ExecutionControl, flag=wx.GROW)
preview_label = wx.StaticText(self, label=_('Preview:'))
right_gridsizer.AddWindow(preview_label, flag=wx.GROW)
self.Preview = wx.Panel(self,
style=wx.TAB_TRAVERSAL|wx.SIMPLE_BORDER)
self.Preview.SetBackgroundColour(wx.Colour(255,255,255))
setattr(self.Preview, "GetDrawingMode", lambda:FREEDRAWING_MODE)
setattr(self.Preview, "GetScaling", lambda:None)
setattr(self.Preview, "GetBlockType", controller.GetBlockType)
setattr(self.Preview, "IsOfType", controller.IsOfType)
self.Preview.Bind(wx.EVT_PAINT, self.OnPaint)
right_gridsizer.AddWindow(self.Preview, flag=wx.GROW)
button_sizer = self.CreateButtonSizer(wx.OK|wx.CANCEL|wx.CENTRE)
self.Bind(wx.EVT_BUTTON, self.OnOK, button_sizer.GetAffirmativeButton())
main_sizer.AddSizer(button_sizer, border=20,
flag=wx.ALIGN_RIGHT|wx.BOTTOM|wx.LEFT|wx.RIGHT)
self.SetSizer(main_sizer)
self.Controller = controller
self.BlockName.SetValue("")
self.BlockName.Enable(False)
self.Inputs.Enable(False)
self.Block = None
self.MinBlockSize = None
self.First = True
self.PouNames = []
self.PouElementNames = []
self.LibraryPanel.SetFocus()
def SetBlockList(self, blocklist):
self.LibraryPanel.SetBlockList(blocklist)
def SetPreviewFont(self, font):
self.Preview.SetFont(font)
def OnOK(self, event):
message = None
selected = self.LibraryPanel.GetSelectedBlock()
block_name = self.BlockName.GetValue()
name_enabled = self.BlockName.IsEnabled()
if selected is None:
message = _("Form isn't complete. Valid block type must be selected!")
elif name_enabled and block_name == "":
message = _("Form isn't complete. Name must be filled!")
elif name_enabled and not TestIdentifier(block_name):
message = _("\"%s\" is not a valid identifier!") % block_name
elif name_enabled and block_name.upper() in IEC_KEYWORDS:
message = _("\"%s\" is a keyword. It can't be used!") % block_name
elif name_enabled and block_name.upper() in self.PouNames:
message = _("\"%s\" pou already exists!") % block_name
elif name_enabled and block_name.upper() in self.PouElementNames:
message = _("\"%s\" element for this pou already exists!") % block_name
if message is not None:
dialog = wx.MessageDialog(self, message, _("Error"), wx.OK|wx.ICON_ERROR)
dialog.ShowModal()
dialog.Destroy()
else:
self.EndModal(wx.ID_OK)
def SetMinBlockSize(self, size):
self.MinBlockSize = size
def SetPouNames(self, pou_names):
self.PouNames = [pou_name.upper() for pou_name in pou_names]
def SetPouElementNames(self, element_names):
self.PouElementNames = [element_name.upper() for element_name in element_names]
def SetValues(self, values):
blocktype = values.get("type", None)
if blocktype is not None:
self.LibraryPanel.SelectTreeItem(blocktype, values.get("inputs", None))
for name, value in values.items():
if name == "name":
self.BlockName.SetValue(value)
elif name == "extension":
self.Inputs.SetValue(value)
elif name == "executionOrder":
self.ExecutionOrder.SetValue(value)
elif name == "executionControl":
self.ExecutionControl.SetValue(value)
self.RefreshPreview()
def GetValues(self):
values = self.LibraryPanel.GetSelectedBlock()
if self.BlockName.GetValue() != "":
values["name"] = self.BlockName.GetValue()
values["width"], values["height"] = self.Block.GetSize()
values["extension"] = self.Inputs.GetValue()
values["executionOrder"] = self.ExecutionOrder.GetValue()
values["executionControl"] = self.ExecutionControl.GetValue()
return values
def OnLibraryTreeItemSelected(self, event):
values = self.LibraryPanel.GetSelectedBlock()
if values is not None:
blocktype = self.Controller.GetBlockType(values["type"], values["inputs"])
else:
blocktype = None
if blocktype is not None:
self.Inputs.SetValue(len(blocktype["inputs"]))
self.Inputs.Enable(blocktype["extensible"])
self.BlockName.Enable(blocktype["type"] != "function")
wx.CallAfter(self.RefreshPreview)
else:
self.BlockName.Enable(False)
self.Inputs.Enable(False)
self.Inputs.SetValue(2)
wx.CallAfter(self.ErasePreview)
def OnNameChanged(self, event):
if self.BlockName.IsEnabled():
self.RefreshPreview()
event.Skip()
def OnInputsChanged(self, event):
if self.Inputs.IsEnabled():
self.RefreshPreview()
event.Skip()
def OnExecutionOrderChanged(self, event):
self.RefreshPreview()
event.Skip()
def OnExecutionControlChanged(self, event):
self.RefreshPreview()
event.Skip()
def ErasePreview(self):
dc = wx.ClientDC(self.Preview)
dc.Clear()
self.Block = None
def RefreshPreview(self):
dc = wx.ClientDC(self.Preview)
dc.SetFont(self.Preview.GetFont())
dc.Clear()
values = self.LibraryPanel.GetSelectedBlock()
if values is not None:
self.Block = FBD_Block(self.Preview, values["type"],
self.BlockName.GetValue(),
extension = self.Inputs.GetValue(),
inputs = values["inputs"],
executionControl = self.ExecutionControl.GetValue(),
executionOrder = self.ExecutionOrder.GetValue())
width, height = self.MinBlockSize
min_width, min_height = self.Block.GetMinSize()
width, height = max(min_width, width), max(min_height, height)
self.Block.SetSize(width, height)
clientsize = self.Preview.GetClientSize()
x = (clientsize.width - width) / 2
y = (clientsize.height - height) / 2
self.Block.SetPosition(x, y)
self.Block.Draw(dc)
else:
self.Block = None
def OnPaint(self, event):
if self.Block is not None:
self.RefreshPreview()
event.Skip()