etisserant@0: #!/usr/bin/env python
etisserant@0: # -*- coding: utf-8 -*-
etisserant@0: 
etisserant@0: #This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor
etisserant@0: #based on the plcopen standard. 
etisserant@0: #
etisserant@0: #Copyright (C): Edouard TISSERANT and Laurent BESSARD
etisserant@0: #
etisserant@0: #See COPYING file for copyrights details.
etisserant@0: #
etisserant@0: #This library is free software; you can redistribute it and/or
etisserant@0: #modify it under the terms of the GNU Lesser General Public
etisserant@0: #License as published by the Free Software Foundation; either
etisserant@0: #version 2.1 of the License, or (at your option) any later version.
etisserant@0: #
etisserant@0: #This library is distributed in the hope that it will be useful,
etisserant@0: #but WITHOUT ANY WARRANTY; without even the implied warranty of
etisserant@0: #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
etisserant@0: #Lesser General Public License for more details.
etisserant@0: #
etisserant@0: #You should have received a copy of the GNU Lesser General Public
etisserant@0: #License along with this library; if not, write to the Free Software
etisserant@0: #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
etisserant@0: 
etisserant@0: from wxPython.wx import *
etisserant@0: import wx
etisserant@0: 
etisserant@0: from plcopen.structures import *
etisserant@0: from graphics.GraphicCommons import *
etisserant@0: from graphics.FBD_Objects import *
etisserant@0: from Viewer import *
etisserant@0: 
etisserant@0: class FBD_Viewer(Viewer):
etisserant@0:     
etisserant@0:     def __init__(self, parent, window, controler):
etisserant@0:         Viewer.__init__(self, parent, window, controler)
etisserant@0: 
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: #                          Mouse event functions
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: 
etisserant@0:     def OnViewerLeftDown(self, event):
etisserant@0:         if self.Mode == MODE_SELECTION:
etisserant@0:             pos = event.GetPosition()
etisserant@0:             if event.ControlDown() and self.SelectedElement:
etisserant@0:                 element = self.FindElement(pos, True)
etisserant@0:                 if element:
etisserant@0:                     if isinstance(self.SelectedElement, Graphic_Group):
etisserant@0:                         self.SelectedElement.SetSelected(False)
etisserant@0:                         self.SelectedElement.SelectElement(element)
etisserant@0:                     elif self.SelectedElement:
etisserant@0:                         group = Graphic_Group(self)
etisserant@0:                         group.SelectElement(self.SelectedElement)
etisserant@0:                         group.SelectElement(element)
etisserant@0:                         self.SelectedElement = group
etisserant@0:                     elements = self.SelectedElement.GetElements()
etisserant@0:                     if len(elements) == 0:
etisserant@0:                         self.SelectedElement = element
etisserant@0:                     elif len(elements) == 1:
etisserant@0:                         self.SelectedElement = elements[0]
etisserant@0:                     self.SelectedElement.SetSelected(True)
etisserant@0:             else:
etisserant@0:                 element = self.FindElement(pos)
etisserant@0:                 if self.SelectedElement and self.SelectedElement != element:
etisserant@0:                     self.SelectedElement.SetSelected(False)
etisserant@0:                     self.SelectedElement = None
etisserant@0:                     self.Refresh()
etisserant@0:                 if element:
etisserant@0:                     self.SelectedElement = element
etisserant@0:                     self.SelectedElement.OnLeftDown(event, self.Scaling)
etisserant@0:                     self.Refresh()
etisserant@0:                 else:
etisserant@0:                     self.rubberBand.Reset()
etisserant@0:                     self.rubberBand.OnLeftDown(event, self.Scaling)
etisserant@0:         elif self.Mode in [MODE_BLOCK,MODE_VARIABLE,MODE_CONNECTION,MODE_COMMENT]:
etisserant@0:             self.rubberBand.Reset()
etisserant@0:             self.rubberBand.OnLeftDown(event, self.Scaling)
etisserant@0:         elif self.Mode == MODE_WIRE:
etisserant@0:             pos = GetScaledEventPosition(event, self.Scaling)
etisserant@0:             wire = Wire(self, [wxPoint(pos.x, pos.y), EAST], [wxPoint(pos.x, pos.y), WEST])
etisserant@0:             wire.oldPos = pos
etisserant@0:             wire.Handle = (HANDLE_POINT, 0)
etisserant@0:             wire.ProcessDragging(0, 0)
etisserant@0:             wire.Handle = (HANDLE_POINT, 1)
etisserant@0:             self.Wires.append(wire)
etisserant@0:             self.Elements.append(wire)
etisserant@0:             if self.SelectedElement:
etisserant@0:                 self.SelectedElement.SetSelected(False)
etisserant@0:             self.SelectedElement = wire
etisserant@0:             self.Refresh()
etisserant@0:         event.Skip()
etisserant@0: 
etisserant@0:     def OnViewerLeftUp(self, event):
etisserant@0:         if self.rubberBand.IsShown():
etisserant@0:             if self.Mode == MODE_SELECTION:
etisserant@0:                 elements = self.SearchElements(self.rubberBand.GetCurrentExtent())
etisserant@0:                 self.rubberBand.OnLeftUp(event, self.Scaling)
etisserant@0:                 if len(elements) > 0:
etisserant@0:                     self.SelectedElement = Graphic_Group(self)
etisserant@0:                     self.SelectedElement.SetElements(elements)
etisserant@0:                     self.SelectedElement.SetSelected(True)
etisserant@0:                     self.Refresh()
etisserant@0:             elif self.Mode == MODE_BLOCK:
etisserant@0:                 bbox = self.rubberBand.GetCurrentExtent()
etisserant@0:                 self.rubberBand.OnLeftUp(event, self.Scaling)
etisserant@0:                 wxCallAfter(self.AddNewBlock, bbox)
etisserant@0:             elif self.Mode == MODE_VARIABLE:
etisserant@0:                 bbox = self.rubberBand.GetCurrentExtent()
etisserant@0:                 self.rubberBand.OnLeftUp(event, self.Scaling)
etisserant@0:                 wxCallAfter(self.AddNewVariable, bbox)
etisserant@0:             elif self.Mode == MODE_CONNECTION:
etisserant@0:                 bbox = self.rubberBand.GetCurrentExtent()
etisserant@0:                 self.rubberBand.OnLeftUp(event, self.Scaling)
etisserant@0:                 wxCallAfter(self.AddNewConnection, bbox)
etisserant@0:             elif self.Mode == MODE_COMMENT:
etisserant@0:                 bbox = self.rubberBand.GetCurrentExtent()
etisserant@0:                 self.rubberBand.OnLeftUp(event, self.Scaling)
etisserant@0:                 wxCallAfter(self.AddNewComment, bbox)
etisserant@0:         elif self.Mode == MODE_SELECTION and self.SelectedElement:
etisserant@0:             self.SelectedElement.OnLeftUp(event, self.Scaling)
etisserant@0:             wxCallAfter(self.SetCursor, wxNullCursor)
etisserant@0:             self.ReleaseMouse()
etisserant@0:             self.Refresh()
etisserant@0:         elif self.Mode == MODE_WIRE and self.SelectedElement:
etisserant@0:             self.SelectedElement.ResetPoints()
etisserant@0:             self.SelectedElement.OnMotion(event, self.Scaling)
etisserant@0:             self.SelectedElement.GeneratePoints()
etisserant@0:             self.SelectedElement.RefreshModel()
etisserant@0:             self.SelectedElement.SetSelected(True)
etisserant@0:             self.Refresh()
etisserant@0:         event.Skip()
etisserant@0:     
etisserant@0:     def OnViewerRightUp(self, event):
etisserant@0:         pos = event.GetPosition()
etisserant@0:         element = self.FindElement(pos)
etisserant@0:         if element:
etisserant@0:             if self.SelectedElement and self.SelectedElement != element:
etisserant@0:                 self.SelectedElement.SetSelected(False)
etisserant@0:             self.SelectedElement = element
etisserant@0:             self.SelectedElement.SetSelected(True)
etisserant@0:             self.SelectedElement.OnRightUp(event, self.Scaling)
etisserant@0:             wxCallAfter(self.SetCursor, wxNullCursor)
etisserant@0:             self.ReleaseMouse()
etisserant@0:             self.Refresh()
etisserant@0:         event.Skip()
etisserant@0:     
etisserant@0:     def OnViewerLeftDClick(self, event):
etisserant@0:         if self.Mode == MODE_SELECTION and self.SelectedElement:
etisserant@0:             self.SelectedElement.OnLeftDClick(event, self.Scaling)
etisserant@0:             self.Refresh()
etisserant@0:         event.Skip()
etisserant@0:     
etisserant@0:     def OnViewerMotion(self, event):
etisserant@0:         if self.rubberBand.IsShown():
etisserant@0:             self.rubberBand.OnMotion(event, self.Scaling)
etisserant@0:         elif self.Mode == MODE_SELECTION and self.SelectedElement:
etisserant@0:             self.SelectedElement.OnMotion(event, self.Scaling)
etisserant@0:             self.Refresh()
etisserant@0:         elif self.Mode == MODE_WIRE and self.SelectedElement:
etisserant@0:             self.SelectedElement.ResetPoints()
etisserant@0:             self.SelectedElement.OnMotion(event, self.Scaling)
etisserant@0:             self.SelectedElement.GeneratePoints()
etisserant@0:             self.Refresh()
etisserant@0:         event.Skip()
etisserant@0: 
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: #                          Keyboard event functions
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: 
etisserant@0:     def OnChar(self, event):
etisserant@0:         keycode = event.GetKeyCode()
etisserant@0:         if self.Scaling:
etisserant@0:             scaling = self.Scaling
etisserant@0:         else:
etisserant@0:             scaling = (8, 8)
etisserant@0:         if keycode == WXK_DELETE and self.SelectedElement:
etisserant@0:             self.SelectedElement.Clean()
etisserant@0:             self.SelectedElement.Delete()
etisserant@0:             self.SelectedElement = None
etisserant@0:         elif keycode == WXK_LEFT and self.SelectedElement:
etisserant@0:             self.SelectedElement.Move(-scaling[0], 0)
etisserant@0:         elif keycode == WXK_RIGHT and self.SelectedElement:
etisserant@0:             self.SelectedElement.Move(scaling[0], 0)
etisserant@0:         elif keycode == WXK_UP and self.SelectedElement:
etisserant@0:             self.SelectedElement.Move(0, -scaling[1])
etisserant@0:         elif keycode == WXK_DOWN and self.SelectedElement:
etisserant@0:             self.SelectedElement.Move(0, scaling[1])
etisserant@0:         self.Refresh()
etisserant@0:         event.Skip()
etisserant@0: 
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: #                          Adding element functions
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: 
etisserant@0:     def AddNewBlock(self, bbox):
etisserant@0:         dialog = BlockPropertiesDialog(self.Parent)
etisserant@0:         dialog.SetBlockList(self.Controler.GetBlockTypes())
etisserant@0:         dialog.SetMinBlockSize((bbox.width, bbox.height))
etisserant@0:         if dialog.ShowModal() == wxID_OK:
etisserant@0:             id = self.GetNewId()
etisserant@0:             values = dialog.GetValues()
etisserant@0:             if "name" in values:
etisserant@0:                 block = FBD_Block(self, values["type"], values["name"], id, values["extension"])
etisserant@0:             else:
etisserant@0:                 block = FBD_Block(self, values["type"], "", id, values["extension"])
etisserant@0:             block.SetPosition(bbox.x, bbox.y)
etisserant@0:             block.SetSize(values["width"], values["height"])
etisserant@0:             self.Blocks.append(block)
etisserant@0:             self.Elements.append(block)
etisserant@0:             self.Controler.AddCurrentElementEditingBlock(id)
etisserant@0:             self.RefreshBlockModel(block)
etisserant@0:             self.Parent.RefreshProjectTree()
etisserant@0:             self.Refresh()
etisserant@0:         dialog.Destroy()
etisserant@0:     
etisserant@0:     def AddNewVariable(self, bbox):
etisserant@0:         dialog = VariablePropertiesDialog(self.Parent)
etisserant@0:         dialog.SetMinVariableSize((bbox.width, bbox.height))
etisserant@0:         varlist = []
etisserant@0:         vars = self.Controler.GetCurrentElementEditingInterfaceVars()
etisserant@0:         if vars:
etisserant@0:             for var in vars:
etisserant@0:                 varlist.append((var["Name"], var["Class"], var["Type"]))
etisserant@0:         returntype = self.Controler.GetCurrentElementEditingInterfaceReturnType()
etisserant@0:         if returntype:
etisserant@0:             varlist.append((self.Controler.GetCurrentElementEditingName(), "Output", returntype))
etisserant@0:         dialog.SetVariables(varlist)
etisserant@0:         if dialog.ShowModal() == wxID_OK:
etisserant@0:             id = self.GetNewId()
etisserant@0:             values = dialog.GetValues()
etisserant@0:             variable = FBD_Variable(self, values["type"], values["name"], values["value_type"], id)
etisserant@0:             variable.SetPosition(bbox.x, bbox.y)
etisserant@0:             variable.SetSize(values["width"], values["height"])
etisserant@0:             self.Blocks.append(variable)
etisserant@0:             self.Elements.append(variable)
etisserant@0:             self.Controler.AddCurrentElementEditingVariable(id, values["type"])
etisserant@0:             self.RefreshVariableModel(variable)
etisserant@0:             self.Parent.RefreshProjectTree()
etisserant@0:             self.Refresh()
etisserant@0:         dialog.Destroy()
etisserant@0: 
etisserant@0:     def AddNewConnection(self, bbox):
etisserant@0:         dialog = ConnectionPropertiesDialog(self.Parent)
etisserant@0:         dialog.SetMinConnectionSize((bbox.width, bbox.height))
etisserant@0:         if dialog.ShowModal() == wxID_OK:
etisserant@0:             id = self.GetNewId()
etisserant@0:             values = dialog.GetValues()
etisserant@0:             connection = FBD_Connection(self, values["type"], values["name"], id)
etisserant@0:             connection.SetPosition(bbox.x, bbox.y)
etisserant@0:             connection.SetSize(values["width"], values["height"])
etisserant@0:             self.Blocks.append(connection)
etisserant@0:             self.Elements.append(connection)
etisserant@0:             self.Controler.AddCurrentElementEditingConnection(id, values["type"])
etisserant@0:             self.RefreshConnectionModel(connection)
etisserant@0:             self.Parent.RefreshProjectTree()
etisserant@0:             self.Refresh()
etisserant@0:         dialog.Destroy()
etisserant@0: 
etisserant@0:     def AddNewComment(self, bbox):
etisserant@0:         dialog = wxTextEntryDialog(self.Parent, "Add a new comment", "Please enter comment text", "", wxOK|wxCANCEL|wxTE_MULTILINE)
etisserant@0:         if dialog.ShowModal() == wxID_OK:
etisserant@0:             value = dialog.GetValue()
etisserant@0:             id = self.GetNewId()
etisserant@0:             comment = Comment(self, value, id)
etisserant@0:             comment.SetPosition(bbox.x, bbox.y)
etisserant@0:             min_width, min_height = comment.GetMinSize()
etisserant@0:             comment.SetSize(max(min_width,bbox.width),max(min_height,bbox.height))
etisserant@0:             self.Elements.append(comment)
etisserant@0:             self.Controler.AddCurrentElementEditingComment(id)
etisserant@0:             self.RefreshCommentModel(comment)
etisserant@0:             self.Refresh()
etisserant@0:         dialog.Destroy()
etisserant@0:             
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: #                          Delete element functions
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: 
etisserant@0:     def DeleteBlock(self, block):
etisserant@0:         wires = []
etisserant@0:         for output in block.GetConnectors()["outputs"]:
etisserant@0:             wires.extend([wire[0] for wire in output.GetWires()])
etisserant@0:         block.Clean()
etisserant@0:         self.Blocks.remove(block)
etisserant@0:         self.Elements.remove(block)
etisserant@0:         self.Controler.RemoveCurrentElementEditingInstance(block.GetId())
etisserant@0:         for wire in wires:
etisserant@0:             wire.RefreshModel()
etisserant@0:         self.Parent.RefreshProjectTree()
etisserant@0: 
etisserant@0:     def DeleteVariable(self, variable):
etisserant@0:         wires = []
etisserant@0:         if self.SelectedElement.GetType() == INPUT:
etisserant@0:             connector = variable.GetConnector()
etisserant@0:             wires.extend([wire[0] for wire in connector.GetWires()])
etisserant@0:         variable.Clean()
etisserant@0:         self.Blocks.remove(self.SelectedElement)
etisserant@0:         self.Elements.remove(self.SelectedElement)
etisserant@0:         self.Controler.RemoveCurrentElementEditingInstance(variable.GetId())
etisserant@0:         for wire in wires:
etisserant@0:             wire.RefreshModel()
etisserant@0:         self.Parent.RefreshProjectTree()
etisserant@0: 
etisserant@0:     def DeleteConnection(self, connection):
etisserant@0:         wires = []
etisserant@0:         if self.SelectedElement.GetType() == CONTINUATION:
etisserant@0:             connector = connection.GetConnector()
etisserant@0:             wires.extend([wire[0] for wire in connector.GetWires()])
etisserant@0:         connection.Clean()
etisserant@0:         self.Blocks.remove(self.SelectedElement)
etisserant@0:         self.Elements.remove(self.SelectedElement)
etisserant@0:         self.Controler.RemoveCurrentElementEditingInstance(connection.GetId())
etisserant@0:         for wire in wires:
etisserant@0:             wire.RefreshModel()
etisserant@0:         self.Parent.RefreshProjectTree()
etisserant@0: 
etisserant@0:     def DeleteComment(self, comment):
etisserant@0:         self.Elements.remove(self.SelectedElement)
etisserant@0:         self.Controler.RemoveCurrentElementEditingInstance(comment.GetId())
etisserant@0: 
etisserant@0:     def DeleteWire(self, wire):
etisserant@0:         connected = wire.GetConnected()
etisserant@0:         self.SelectedElement.Clean()
etisserant@0:         self.Wires.remove(self.SelectedElement)
etisserant@0:         self.Elements.remove(self.SelectedElement)
etisserant@0:         for connector in connected:
etisserant@0:             connector.RefreshParentBlock()
etisserant@0: 
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: #                          Create New Block Dialog
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: 
etisserant@0: [wxID_BLOCKPROPERTIESDIALOG, wxID_BLOCKPROPERTIESDIALOGMAINPANEL, 
etisserant@0:  wxID_BLOCKPROPERTIESDIALOGNAME, wxID_BLOCKPROPERTIESDIALOGTYPETREE, 
etisserant@0:  wxID_BLOCKPROPERTIESDIALOGTYPEDESC, wxID_BLOCKPROPERTIESDIALOGINPUTS, 
etisserant@0:  wxID_BLOCKPROPERTIESDIALOGPREVIEW, wxID_BLOCKPROPERTIESDIALOGSTATICTEXT1, 
etisserant@0:  wxID_BLOCKPROPERTIESDIALOGSTATICTEXT2, wxID_BLOCKPROPERTIESDIALOGSTATICTEXT3, 
etisserant@0:  wxID_BLOCKPROPERTIESDIALOGSTATICTEXT4, 
etisserant@0: ] = [wx.NewId() for _init_ctrls in range(11)]
etisserant@0: 
etisserant@0: class BlockPropertiesDialog(wx.Dialog):
etisserant@0:     def _init_coll_flexGridSizer1_Items(self, parent):
etisserant@0:         # generated method, don't edit
etisserant@0: 
etisserant@0:         parent.AddWindow(self.MainPanel, 0, border=0, flag=0)
etisserant@0: 
etisserant@0:     def _init_sizers(self):
etisserant@0:         # generated method, don't edit
etisserant@0:         self.flexGridSizer1 = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=0)
etisserant@0: 
etisserant@0:         self._init_coll_flexGridSizer1_Items(self.flexGridSizer1)
etisserant@0: 
etisserant@0:         self.SetSizer(self.flexGridSizer1)
etisserant@0: 
etisserant@0:     def _init_ctrls(self, prnt):
etisserant@0:         # generated method, don't edit
etisserant@0:         wx.Dialog.__init__(self, id=wxID_BLOCKPROPERTIESDIALOG,
etisserant@0:               name='BlockPropertiesDialog', parent=prnt, pos=wx.Point(376, 223),
etisserant@0:               size=wx.Size(600, 360), style=wx.DEFAULT_DIALOG_STYLE,
etisserant@0:               title='Block Properties')
etisserant@0:         self.SetClientSize(wx.Size(600, 360))
etisserant@0: 
etisserant@0:         self.MainPanel = wx.Panel(id=wxID_BLOCKPROPERTIESDIALOGMAINPANEL,
etisserant@0:               name='MainPanel', parent=self, pos=wx.Point(0, 0),
etisserant@0:               size=wx.Size(600, 320), style=wx.TAB_TRAVERSAL)
etisserant@0:         self.MainPanel.SetAutoLayout(True)
etisserant@0: 
etisserant@0:         self.staticbox1 = wx.StaticBox(id=wxID_BLOCKPROPERTIESDIALOGSTATICTEXT1,
etisserant@0:               label='Type:', name='staticBox1', parent=self.MainPanel,
etisserant@0:               pos=wx.Point(24, 24), size=wx.Size(245, 280), style=0)
etisserant@0: 
etisserant@0:         self.staticText2 = wx.StaticText(id=wxID_BLOCKPROPERTIESDIALOGSTATICTEXT2,
etisserant@0:               label='Name:', name='staticText2', parent=self.MainPanel,
etisserant@0:               pos=wx.Point(274, 24), size=wx.Size(70, 17), style=0)
etisserant@0: 
etisserant@0:         self.staticText3 = wx.StaticText(id=wxID_BLOCKPROPERTIESDIALOGSTATICTEXT2,
etisserant@0:               label='Inputs:', name='staticText4', parent=self.MainPanel,
etisserant@0:               pos=wx.Point(424, 24), size=wx.Size(70, 17), style=0)
etisserant@0: 
etisserant@0:         self.staticText4 = wx.StaticText(id=wxID_BLOCKPROPERTIESDIALOGSTATICTEXT4,
etisserant@0:               label='Preview:', name='staticText4', parent=self.MainPanel,
etisserant@0:               pos=wx.Point(274, 80), size=wx.Size(100, 17), style=0)
etisserant@0: 
etisserant@0:         self.TypeTree = wx.TreeCtrl(id=wxID_BLOCKPROPERTIESDIALOGTYPETREE,
etisserant@0:               name='TypeTree', parent=self.MainPanel, pos=wx.Point(34, 44),
etisserant@0:               size=wx.Size(225, 180), style=wx.TR_HAS_BUTTONS|wx.TR_HIDE_ROOT|wx.TR_SINGLE|wx.SUNKEN_BORDER)
etisserant@0:         EVT_TREE_SEL_CHANGED(self, wxID_BLOCKPROPERTIESDIALOGTYPETREE, self.OnTypeTreeItemSelected)
etisserant@0: 
etisserant@0:         self.TypeDesc = wx.TextCtrl(id=wxID_BLOCKPROPERTIESDIALOGTYPEDESC,
etisserant@0:               name='TypeDesc', parent=self.MainPanel, pos=wx.Point(34, 230),
etisserant@0:               size=wx.Size(225, 65), style=wx.TE_READONLY|wx.TE_MULTILINE)
etisserant@0: 
etisserant@0:         self.Name = wx.TextCtrl(id=wxID_BLOCKPROPERTIESDIALOGNAME, value='',
etisserant@0:               name='Name', parent=self.MainPanel, pos=wx.Point(274, 48),
etisserant@0:               size=wx.Size(145, 24), style=0)
etisserant@0:         EVT_TEXT(self, wxID_BLOCKPROPERTIESDIALOGNAME, self.OnNameChanged)
etisserant@0: 
etisserant@0:         self.Inputs = wx.SpinCtrl(id=wxID_BLOCKPROPERTIESDIALOGINPUTS,
etisserant@0:               name='Inputs', parent=self.MainPanel, pos=wx.Point(424, 48),
etisserant@0:               size=wx.Size(145, 24), style=0, min=2, max=20)
etisserant@0:         EVT_SPINCTRL(self, wxID_BLOCKPROPERTIESDIALOGINPUTS, self.OnInputsChanged)
etisserant@0: 
etisserant@0:         self.Preview = wx.Panel(id=wxID_BLOCKPROPERTIESDIALOGPREVIEW,
etisserant@0:               name='Preview', parent=self.MainPanel, pos=wx.Point(274, 104),
etisserant@0:               size=wx.Size(300, 200), style=wx.TAB_TRAVERSAL|wx.SIMPLE_BORDER)
etisserant@0:         self.Preview.SetBackgroundColour(wxColour(255,255,255))
etisserant@0: 
etisserant@0:         self._init_sizers()
etisserant@0: 
etisserant@0:     def __init__(self, parent):
etisserant@0:         self._init_ctrls(parent)
etisserant@0:         self.ButtonSizer = self.CreateButtonSizer(wxOK|wxCANCEL)
etisserant@0:         self.flexGridSizer1.Add(self.ButtonSizer, 1, wxALIGN_RIGHT)
etisserant@0:         self.Name.SetValue("")
etisserant@0:         self.Name.Enable(False)
etisserant@0:         self.Inputs.Enable(False)
etisserant@0:         self.Block = None
etisserant@0:         self.MinBlockSize = None
etisserant@0:         
etisserant@0:         EVT_PAINT(self, self.OnPaint)
etisserant@0:         EVT_BUTTON(self, self.ButtonSizer.GetAffirmativeButton().GetId(), self.OnOK)
etisserant@0:     
etisserant@0:     def OnOK(self, event):
etisserant@0:         error = []
etisserant@0:         selected = self.TypeTree.GetSelection()
etisserant@0:         if not selected.IsOk() or self.TypeTree.GetItemParent(selected) == self.TypeTree.GetRootItem() or selected == self.TypeTree.GetRootItem():
etisserant@0:             message = wxMessageDialog(self, "Form isn't complete. Valid block type must be selected!", "Error", wxOK|wxICON_ERROR)
etisserant@0:             message.ShowModal()
etisserant@0:             message.Destroy()
etisserant@0:         elif self.Name.IsEnabled() and self.Name.GetValue() == "":
etisserant@0:             message = wxMessageDialog(self, "Form isn't complete. Name must be filled!", "Error", wxOK|wxICON_ERROR)
etisserant@0:             message.ShowModal()
etisserant@0:             message.Destroy()
etisserant@0:         else:
etisserant@0:             self.EndModal(wxID_OK)
etisserant@0: 
etisserant@0:     def SetBlockList(self, blocktypes):
etisserant@0:         root = self.TypeTree.AddRoot("")
etisserant@0:         for category in blocktypes:
etisserant@0:             category_item = self.TypeTree.AppendItem(root, category["name"])
etisserant@0:             for blocktype in category["list"]:
etisserant@0:                 blocktype_item = self.TypeTree.AppendItem(category_item, blocktype["name"])
etisserant@0: 
etisserant@0:     def SetMinBlockSize(self, size):
etisserant@0:         self.MinBlockSize = size
etisserant@0: 
etisserant@0:     def GetValues(self):
etisserant@0:         values = {}
etisserant@0:         values["type"] = self.TypeTree.GetItemText(self.TypeTree.GetSelection())
etisserant@0:         if self.Name.GetValue() != "":
etisserant@0:             values["name"] = self.Name.GetValue()
etisserant@0:         values["width"], values["height"] = self.Block.GetSize()
etisserant@0:         values["extension"] = self.Inputs.GetValue()
etisserant@0:         return values
etisserant@0: 
etisserant@0:     def OnTypeTreeItemSelected(self, event):
etisserant@0:         self.Name.SetValue("")
etisserant@0:         selected = event.GetItem()
etisserant@0:         if self.TypeTree.GetItemParent(selected) != self.TypeTree.GetRootItem():
etisserant@0:             blocktype = GetBlockType(self.TypeTree.GetItemText(selected))
etisserant@0:             if blocktype:
etisserant@0:                 self.Inputs.SetValue(len(blocktype["inputs"]))
etisserant@0:                 self.Inputs.Enable(blocktype["extensible"])
etisserant@0:                 self.Name.Enable(blocktype["type"] != "function")
etisserant@0:                 self.TypeDesc.SetValue(blocktype["comment"])
etisserant@0:                 wxCallAfter(self.RefreshPreview)
etisserant@0:             else:
etisserant@0:                 self.Name.Enable(False)
etisserant@0:                 self.Inputs.Enable(False)
etisserant@0:                 self.Inputs.SetValue(2)
etisserant@0:                 self.TypeDesc.SetValue("")
etisserant@0:                 wxCallAfter(self.ErasePreview)
etisserant@0:         else:
etisserant@0:             self.Name.Enable(False)
etisserant@0:             self.Inputs.Enable(False)
etisserant@0:             self.Inputs.SetValue(2)
etisserant@0:             self.TypeDesc.SetValue("")
etisserant@0:             wxCallAfter(self.ErasePreview)
etisserant@0:         event.Skip()
etisserant@0: 
etisserant@0:     def OnNameChanged(self, event):
etisserant@0:         if self.Name.IsEnabled():
etisserant@0:             self.RefreshPreview()
etisserant@0:         event.Skip()
etisserant@0:     
etisserant@0:     def OnInputsChanged(self, event):
etisserant@0:         if self.Inputs.IsEnabled():
etisserant@0:             self.RefreshPreview()
etisserant@0:         event.Skip()
etisserant@0:     
etisserant@0:     def ErasePreview(self):
etisserant@0:         dc = wxClientDC(self.Preview)
etisserant@0:         dc.Clear()
etisserant@0:         self.Block = None
etisserant@0:         
etisserant@0:     def RefreshPreview(self):
etisserant@0:         dc = wxClientDC(self.Preview)
etisserant@0:         dc.Clear()
etisserant@0:         blocktype = self.TypeTree.GetItemText(self.TypeTree.GetSelection())
etisserant@0:         self.Block = FBD_Block(self.Preview, blocktype, self.Name.GetValue(), extension = self.Inputs.GetValue())
etisserant@0:         width, height = self.MinBlockSize
etisserant@0:         min_width, min_height = self.Block.GetMinSize()
etisserant@0:         width, height = max(min_width, width), max(min_height, height)
etisserant@0:         self.Block.SetSize(width, height)
etisserant@0:         clientsize = self.Preview.GetClientSize()
etisserant@0:         x = (clientsize.width - width) / 2
etisserant@0:         y = (clientsize.height - height) / 2
etisserant@0:         self.Block.SetPosition(x, y)
etisserant@0:         self.Block.Draw(dc)
etisserant@0: 
etisserant@0:     def OnPaint(self, event):
etisserant@0:         if self.Block:
etisserant@0:             self.RefreshPreview()
etisserant@0:         else:
etisserant@0:             self.ErasePreview()
etisserant@0: 
etisserant@0: 
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: #                          Create New Variable Dialog
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: 
etisserant@0: [wxID_VARIABLEPROPERTIESDIALOG, wxID_VARIABLEPROPERTIESDIALOGMAINPANEL, 
etisserant@0:  wxID_VARIABLEPROPERTIESDIALOGNAME, wxID_VARIABLEPROPERTIESDIALOGCLASS, 
etisserant@0:  wxID_VARIABLEPROPERTIESDIALOGPREVIEW, wxID_VARIABLEPROPERTIESDIALOGSTATICTEXT1,
etisserant@0:  wxID_VARIABLEPROPERTIESDIALOGSTATICTEXT2, wxID_VARIABLEPROPERTIESDIALOGSTATICTEXT3, 
etisserant@0: ] = [wx.NewId() for _init_ctrls in range(8)]
etisserant@0: 
etisserant@0: class VariablePropertiesDialog(wx.Dialog):
etisserant@0:     def _init_coll_flexGridSizer1_Items(self, parent):
etisserant@0:         # generated method, don't edit
etisserant@0: 
etisserant@0:         parent.AddWindow(self.MainPanel, 0, border=0, flag=0)
etisserant@0: 
etisserant@0:     def _init_sizers(self):
etisserant@0:         # generated method, don't edit
etisserant@0:         self.flexGridSizer1 = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=0)
etisserant@0: 
etisserant@0:         self._init_coll_flexGridSizer1_Items(self.flexGridSizer1)
etisserant@0: 
etisserant@0:         self.SetSizer(self.flexGridSizer1)
etisserant@0: 
etisserant@0:     def _init_ctrls(self, prnt):
etisserant@0:         # generated method, don't edit
etisserant@0:         wx.Dialog.__init__(self, id=wxID_VARIABLEPROPERTIESDIALOG,
etisserant@0:               name='VariablePropertiesDialog', parent=prnt, pos=wx.Point(376, 223),
etisserant@0:               size=wx.Size(400, 320), style=wx.DEFAULT_DIALOG_STYLE,
etisserant@0:               title='Variable Properties')
etisserant@0:         self.SetClientSize(wx.Size(400, 320))
etisserant@0: 
etisserant@0:         self.MainPanel = wx.Panel(id=wxID_VARIABLEPROPERTIESDIALOGMAINPANEL,
etisserant@0:               name='MainPanel', parent=self, pos=wx.Point(0, 0),
etisserant@0:               size=wx.Size(400, 280), style=wx.TAB_TRAVERSAL)
etisserant@0:         self.MainPanel.SetAutoLayout(True)
etisserant@0: 
etisserant@0:         self.staticText1 = wx.StaticText(id=wxID_VARIABLEPROPERTIESDIALOGSTATICTEXT1,
etisserant@0:               label='Class:', name='staticText1', parent=self.MainPanel,
etisserant@0:               pos=wx.Point(24, 24), size=wx.Size(70, 17), style=0)
etisserant@0: 
etisserant@0:         self.staticText2 = wx.StaticText(id=wxID_VARIABLEPROPERTIESDIALOGSTATICTEXT2,
etisserant@0:               label='Name:', name='staticText2', parent=self.MainPanel,
etisserant@0:               pos=wx.Point(204, 24), size=wx.Size(70, 17), style=0)
etisserant@0: 
etisserant@0:         self.staticText3 = wx.StaticText(id=wxID_VARIABLEPROPERTIESDIALOGSTATICTEXT3,
etisserant@0:               label='Preview:', name='staticText3', parent=self.MainPanel,
etisserant@0:               pos=wx.Point(24, 72), size=wx.Size(100, 17), style=0)
etisserant@0: 
etisserant@0:         self.Class = wx.Choice(id=wxID_VARIABLEPROPERTIESDIALOGCLASS,
etisserant@0:               name='Class', parent=self.MainPanel, pos=wx.Point(24, 48),
etisserant@0:               size=wx.Size(145, 24), style=0)
etisserant@0:         EVT_CHOICE(self, wxID_VARIABLEPROPERTIESDIALOGCLASS, self.OnClassChanged)
etisserant@0:         
etisserant@0:         self.Name = wx.Choice(id=wxID_VARIABLEPROPERTIESDIALOGNAME,
etisserant@0:               name='Name', parent=self.MainPanel, pos=wx.Point(204, 48),
etisserant@0:               size=wx.Size(145, 24), style=0)
etisserant@0:         EVT_CHOICE(self, wxID_VARIABLEPROPERTIESDIALOGNAME, self.OnNameChanged)
etisserant@0: 
etisserant@0:         self.Preview = wx.Panel(id=wxID_VARIABLEPROPERTIESDIALOGPREVIEW,
etisserant@0:               name='Preview', parent=self.MainPanel, pos=wx.Point(24, 104),
etisserant@0:               size=wx.Size(350, 150), style=wx.TAB_TRAVERSAL|wx.SIMPLE_BORDER)
etisserant@0:         self.Preview.SetBackgroundColour(wxColour(255,255,255))
etisserant@0: 
etisserant@0:         self._init_sizers()
etisserant@0: 
etisserant@0:     def __init__(self, parent):
etisserant@0:         self._init_ctrls(parent)
etisserant@0:         self.ButtonSizer = self.CreateButtonSizer(wxOK|wxCANCEL)
etisserant@0:         self.flexGridSizer1.Add(self.ButtonSizer, 1, wxALIGN_RIGHT)
etisserant@0:         self.Variable = None
etisserant@0:         self.VarList = []
etisserant@0:         self.MinVariableSize = None
etisserant@0:         self.RefreshNameList()
etisserant@0:         
etisserant@0:         for choice in ["Input", "Output", "InOut"]:
etisserant@0:             self.Class.Append(choice)
etisserant@0:         self.Class.SetStringSelection("Input")
etisserant@0:         
etisserant@0:         EVT_PAINT(self, self.OnPaint)
etisserant@0: 
etisserant@0:     def RefreshNameList(self):
etisserant@0:         selected = self.Name.GetStringSelection()
etisserant@0:         self.Name.Clear()
etisserant@0:         for name, var_type, value_type in self.VarList:
etisserant@0:             if var_type in ["Local","Temp","Output","InOut"]:
etisserant@0:                 self.Name.Append(name)
etisserant@0:             elif var_type == "Input" and self.Class.GetStringSelection() == "Input":
etisserant@0:                 self.Name.Append(name)
etisserant@0:         if self.Name.FindString(selected) != wxNOT_FOUND:
etisserant@0:             self.Name.SetStringSelection(selected)
etisserant@0:         self.Name.Enable(self.Name.GetCount() > 0)
etisserant@0:             
etisserant@0:     def SetMinVariableSize(self, size):
etisserant@0:         self.MinVariableSize = size
etisserant@0: 
etisserant@0:     def SetVariables(self, vars):
etisserant@0:         self.VarList = vars
etisserant@0:         self.RefreshNameList()
etisserant@0:         
etisserant@0:     def GetValues(self):
etisserant@0:         values = {}
etisserant@0:         classtype = self.Class.GetStringSelection()
etisserant@0:         if classtype == "Input":
etisserant@0:             values["type"] = INPUT
etisserant@0:         elif classtype == "Output":
etisserant@0:             values["type"] = OUTPUT
etisserant@0:         elif classtype == "InOut":
etisserant@0:             values["type"] = INOUT
etisserant@0:         values["name"] = self.Name.GetStringSelection()
etisserant@0:         values["value_type"] = ""
etisserant@0:         for var_name, var_type, value_type in self.VarList:
etisserant@0:             if var_name == values["name"]:
etisserant@0:                 values["value_type"] = value_type
etisserant@0:         values["width"], values["height"] = self.Variable.GetSize()
etisserant@0:         return values
etisserant@0: 
etisserant@0:     def OnClassChanged(self, event):
etisserant@0:         self.RefreshNameList()
etisserant@0:         self.RefreshPreview()
etisserant@0:         event.Skip()
etisserant@0: 
etisserant@0:     def OnNameChanged(self, event):
etisserant@0:         self.RefreshPreview()
etisserant@0:         event.Skip()
etisserant@0:         
etisserant@0:     def RefreshPreview(self):
etisserant@0:         dc = wxClientDC(self.Preview)
etisserant@0:         dc.Clear()
etisserant@0:         name = self.Name.GetStringSelection()
etisserant@0:         type = ""
etisserant@0:         for var_name, var_type, value_type in self.VarList:
etisserant@0:             if var_name == name:
etisserant@0:                 type = value_type
etisserant@0:         classtype = self.Class.GetStringSelection()
etisserant@0:         if classtype == "Input":
etisserant@0:             self.Variable = FBD_Variable(self.Preview, INPUT, name, type)
etisserant@0:         elif classtype == "Output":
etisserant@0:             self.Variable = FBD_Variable(self.Preview, OUTPUT, name, type)
etisserant@0:         elif classtype == "InOut":
etisserant@0:             self.Variable = FBD_Variable(self.Preview, INOUT, name, type)
etisserant@0:         width, height = self.MinVariableSize
etisserant@0:         min_width, min_height = self.Variable.GetMinSize()
etisserant@0:         width, height = max(min_width, width), max(min_height, height)
etisserant@0:         self.Variable.SetSize(width, height)
etisserant@0:         clientsize = self.Preview.GetClientSize()
etisserant@0:         x = (clientsize.width - width) / 2
etisserant@0:         y = (clientsize.height - height) / 2
etisserant@0:         self.Variable.SetPosition(x, y)
etisserant@0:         self.Variable.Draw(dc)
etisserant@0: 
etisserant@0:     def OnPaint(self, event):
etisserant@0:         self.RefreshPreview()
etisserant@0: 
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: #                          Create New Connection Dialog
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: 
etisserant@0: [wxID_CONNECTIONPROPERTIESDIALOG, wxID_CONNECTIONPROPERTIESDIALOGMAINPANEL, 
etisserant@0:  wxID_CONNECTIONPROPERTIESDIALOGNAME, wxID_CONNECTIONPROPERTIESDIALOGRADIOBUTTON1, 
etisserant@0:  wxID_CONNECTIONPROPERTIESDIALOGRADIOBUTTON2, wxID_CONNECTIONPROPERTIESDIALOGPREVIEW,
etisserant@0:  wxID_CONNECTIONPROPERTIESDIALOGSTATICTEXT1, wxID_CONNECTIONPROPERTIESDIALOGSTATICTEXT2, 
etisserant@0:  wxID_CONNECTIONPROPERTIESDIALOGSTATICTEXT3, 
etisserant@0: ] = [wx.NewId() for _init_ctrls in range(9)]
etisserant@0: 
etisserant@0: class ConnectionPropertiesDialog(wx.Dialog):
etisserant@0:     def _init_coll_flexGridSizer1_Items(self, parent):
etisserant@0:         # generated method, don't edit
etisserant@0: 
etisserant@0:         parent.AddWindow(self.MainPanel, 0, border=0, flag=0)
etisserant@0: 
etisserant@0:     def _init_sizers(self):
etisserant@0:         # generated method, don't edit
etisserant@0:         self.flexGridSizer1 = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=0)
etisserant@0: 
etisserant@0:         self._init_coll_flexGridSizer1_Items(self.flexGridSizer1)
etisserant@0: 
etisserant@0:         self.SetSizer(self.flexGridSizer1)
etisserant@0: 
etisserant@0:     def _init_ctrls(self, prnt):
etisserant@0:         # generated method, don't edit
etisserant@0:         wx.Dialog.__init__(self, id=wxID_CONNECTIONPROPERTIESDIALOG,
etisserant@0:               name='ConnectionPropertiesDialog', parent=prnt, pos=wx.Point(376, 223),
etisserant@0:               size=wx.Size(350, 220), style=wx.DEFAULT_DIALOG_STYLE,
etisserant@0:               title='Connection Properties')
etisserant@0:         self.SetClientSize(wx.Size(350, 220))
etisserant@0: 
etisserant@0:         self.MainPanel = wx.Panel(id=wxID_CONNECTIONPROPERTIESDIALOGMAINPANEL,
etisserant@0:               name='MainPanel', parent=self, pos=wx.Point(0, 0),
etisserant@0:               size=wx.Size(340, 360), style=wx.TAB_TRAVERSAL)
etisserant@0:         self.MainPanel.SetAutoLayout(True)
etisserant@0: 
etisserant@0:         self.staticText1 = wx.StaticText(id=wxID_CONNECTIONPROPERTIESDIALOGSTATICTEXT1,
etisserant@0:               label='Type:', name='staticText1', parent=self.MainPanel,
etisserant@0:               pos=wx.Point(24, 24), size=wx.Size(70, 17), style=0)
etisserant@0: 
etisserant@0:         self.staticText2 = wx.StaticText(id=wxID_CONNECTIONPROPERTIESDIALOGSTATICTEXT2,
etisserant@0:               label='Name:', name='staticText2', parent=self.MainPanel,
etisserant@0:               pos=wx.Point(24, 104), size=wx.Size(70, 17), style=0)
etisserant@0: 
etisserant@0:         self.staticText3 = wx.StaticText(id=wxID_CONNECTIONPROPERTIESDIALOGSTATICTEXT3,
etisserant@0:               label='Preview:', name='staticText3', parent=self.MainPanel,
etisserant@0:               pos=wx.Point(174, 24), size=wx.Size(100, 17), style=0)
etisserant@0: 
etisserant@0:         self.radioButton1 = wx.RadioButton(id=wxID_CONNECTIONPROPERTIESDIALOGRADIOBUTTON1,
etisserant@0:               label='Connector', name='radioButton1', parent=self.MainPanel,
etisserant@0:               pos=wx.Point(24, 48), size=wx.Size(114, 24), style=0)
etisserant@0:         EVT_RADIOBUTTON(self, wxID_CONNECTIONPROPERTIESDIALOGRADIOBUTTON1, self.OnTypeChanged)
etisserant@0:         self.radioButton1.SetValue(True)
etisserant@0: 
etisserant@0:         self.radioButton2 = wx.RadioButton(id=wxID_CONNECTIONPROPERTIESDIALOGRADIOBUTTON2,
etisserant@0:               label='Continuation', name='radioButton2', parent=self.MainPanel, 
etisserant@0:               pos=wx.Point(24, 72), size=wx.Size(128, 24), style=0)
etisserant@0:         EVT_RADIOBUTTON(self, wxID_CONNECTIONPROPERTIESDIALOGRADIOBUTTON2, self.OnTypeChanged)
etisserant@0:         self.radioButton2.SetValue(False)
etisserant@0:         
etisserant@0:         self.Name = wx.TextCtrl(id=wxID_CONNECTIONPROPERTIESDIALOGNAME,
etisserant@0:               name='Name', parent=self.MainPanel, pos=wx.Point(24, 130),
etisserant@0:               size=wx.Size(145, 24), style=0)
etisserant@0:         EVT_TEXT(self, wxID_CONNECTIONPROPERTIESDIALOGNAME, self.OnNameChanged)
etisserant@0: 
etisserant@0:         self.Preview = wx.Panel(id=wxID_CONNECTIONPROPERTIESDIALOGPREVIEW,
etisserant@0:               name='Preview', parent=self.MainPanel, pos=wx.Point(174, 48),
etisserant@0:               size=wx.Size(150, 100), style=wx.TAB_TRAVERSAL|wx.SIMPLE_BORDER)
etisserant@0:         self.Preview.SetBackgroundColour(wxColour(255,255,255))
etisserant@0: 
etisserant@0:         self._init_sizers()
etisserant@0: 
etisserant@0:     def __init__(self, parent):
etisserant@0:         self._init_ctrls(parent)
etisserant@0:         self.ButtonSizer = self.CreateButtonSizer(wxOK|wxCANCEL)
etisserant@0:         self.flexGridSizer1.Add(self.ButtonSizer, 1, wxALIGN_RIGHT)
etisserant@0:         self.Connection = None
etisserant@0:         self.MinConnectionSize = None
etisserant@0:         
etisserant@0:         EVT_PAINT(self, self.OnPaint)
etisserant@0:             
etisserant@0:     def SetMinConnectionSize(self, size):
etisserant@0:         self.MinConnectionSize = size
etisserant@0:         
etisserant@0:     def GetValues(self):
etisserant@0:         values = {}
etisserant@0:         if self.radioButton1.GetValue():
etisserant@0:             values["type"] = CONNECTOR
etisserant@0:         else:
etisserant@0:             values["type"] = CONTINUATION
etisserant@0:         values["name"] = self.Name.GetValue()
etisserant@0:         values["width"], values["height"] = self.Connection.GetSize()
etisserant@0:         return values
etisserant@0: 
etisserant@0:     def OnTypeChanged(self, event):
etisserant@0:         self.RefreshPreview()
etisserant@0:         event.Skip()
etisserant@0: 
etisserant@0:     def OnNameChanged(self, event):
etisserant@0:         self.RefreshPreview()
etisserant@0:         event.Skip()
etisserant@0:         
etisserant@0:     def RefreshPreview(self):
etisserant@0:         dc = wxClientDC(self.Preview)
etisserant@0:         dc.Clear()
etisserant@0:         if self.radioButton1.GetValue():
etisserant@0:             self.Connection = FBD_Connector(self.Preview, CONNECTOR, self.Name.GetValue())
etisserant@0:         else:
etisserant@0:             self.Connection = FBD_Connector(self.Preview, CONTINUATION, self.Name.GetValue())
etisserant@0:         width, height = self.MinConnectionSize
etisserant@0:         min_width, min_height = self.Connection.GetMinSize()
etisserant@0:         width, height = max(min_width, width), max(min_height, height)
etisserant@0:         self.Connection.SetSize(width, height)
etisserant@0:         clientsize = self.Preview.GetClientSize()
etisserant@0:         x = (clientsize.width - width) / 2
etisserant@0:         y = (clientsize.height - height) / 2
etisserant@0:         self.Connection.SetPosition(x, y)
etisserant@0:         self.Connection.Draw(dc)
etisserant@0: 
etisserant@0:     def OnPaint(self, event):
etisserant@0:         self.RefreshPreview()