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: #
lbessard@58: #Copyright (C) 2007: 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@5: #modify it under the terms of the GNU 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
lbessard@58: #General Public License for more details.
etisserant@0: #
etisserant@5: #You should have received a copy of the GNU 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: import wx
etisserant@0: 
etisserant@0: from GraphicCommons import *
etisserant@0: from plcopen.structures import *
lbessard@99: from plcopen.structures import IsOfType
etisserant@0: 
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: #                         Function Block Diagram Block
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: 
etisserant@0: """
etisserant@0: Class that implements the graphic representation of a function block
etisserant@0: """
etisserant@0: 
etisserant@0: class FBD_Block(Graphic_Element):
etisserant@0:     
etisserant@0:     # Create a new block
lbessard@90:     def __init__(self, parent, type, name, id = None, extension = 0, inputs = None, connectors = {}):
etisserant@0:         Graphic_Element.__init__(self, parent)
lbessard@3:         self.Type = None
lbessard@27:         self.Extension = None
etisserant@0:         self.Name = name
etisserant@0:         self.Id = id
lbessard@2:         self.Inputs = []
lbessard@2:         self.Outputs = []
lbessard@42:         self.RefreshNameSize()
lbessard@90:         self.Colour = wx.BLACK
lbessard@90:         self.Pen = wx.BLACK_PEN
lbessard@90:         self.SetType(type, extension, inputs, connectors)
etisserant@0:     
etisserant@0:     # Destructor
etisserant@0:     def __del__(self):
etisserant@0:         self.Inputs = []
etisserant@0:         self.Outputs = []
etisserant@0:     
etisserant@0:     # Delete this block by calling the appropriate method
etisserant@0:     def Delete(self):
etisserant@0:         self.Parent.DeleteBlock(self)
etisserant@0:     
etisserant@0:     # Unconnect all inputs and outputs
etisserant@0:     def Clean(self):
etisserant@0:         for input in self.Inputs:
lbessard@2:             input.UnConnect(delete = True)
lbessard@2:         for output in self.Outputs:
lbessard@2:             output.UnConnect(delete = True)
etisserant@0:     
lbessard@42:     # Refresh the size of text for name
lbessard@42:     def RefreshNameSize(self):
lbessard@64:         dc = wx.ClientDC(self.Parent)
lbessard@42:         self.NameSize = dc.GetTextExtent(self.Name)
lbessard@42:     
etisserant@0:     # Refresh the block bounding box
etisserant@0:     def RefreshBoundingBox(self):
etisserant@0:         # Calculate the size of the name outside the block
lbessard@42:         text_width, text_height = self.NameSize
etisserant@0:         # Calculate the bounding box size
etisserant@0:         bbx_x = self.Pos.x - max(min(1, len(self.Inputs)) * CONNECTOR_SIZE, (text_width - self.Size[0]) / 2)
etisserant@0:         bbx_width = self.Size[0] + 1 + (min(1, len(self.Inputs)) + min(1, len(self.Outputs))) * CONNECTOR_SIZE
etisserant@0:         if self.Name != "":
etisserant@0:             bbx_y = self.Pos.y - (text_height + 2)
etisserant@0:             bbx_height = self.Size[1] + (text_height + 2)
etisserant@0:         else:
etisserant@0:             bbx_y = self.Pos.y
etisserant@0:             bbx_height = self.Size[1]
lbessard@64:         self.BoundingBox = wx.Rect(bbx_x, bbx_y, bbx_width + 1, bbx_height + 1)
etisserant@0:     
etisserant@0:     # Refresh the positions of the block connectors
etisserant@0:     def RefreshConnectors(self):
etisserant@0:         # Calculate the size for the connector lines
etisserant@0:         lines = max(len(self.Inputs), len(self.Outputs))
etisserant@0:         linesize = max((self.Size[1] - BLOCK_LINE_SIZE) / lines, BLOCK_LINE_SIZE)
etisserant@0:         # Update inputs positions
etisserant@0:         position = BLOCK_LINE_SIZE + linesize / 2
etisserant@0:         for input in self.Inputs:
lbessard@64:             input.SetPosition(wx.Point(0, position))
etisserant@0:             position += linesize
etisserant@0:         # Update outputs positions
etisserant@0:         position = BLOCK_LINE_SIZE + linesize / 2
etisserant@0:         for output in self.Outputs:
lbessard@64:             output.SetPosition(wx.Point(self.Size[0], position))
etisserant@0:             position += linesize
etisserant@0:         self.RefreshConnected()
etisserant@0:     
etisserant@0:     # Refresh the positions of wires connected to inputs and outputs
etisserant@0:     def RefreshConnected(self, exclude = []):
etisserant@0:         for input in self.Inputs:
etisserant@0:             input.MoveConnected(exclude)
etisserant@0:         for output in self.Outputs:
etisserant@0:             output.MoveConnected(exclude)
etisserant@0:     
etisserant@0:     # Returns the block connector that starts with the point given if it exists 
lbessard@27:     def GetConnector(self, position, name = None):
lbessard@27:         # if a name is given
lbessard@27:         if name:
lbessard@27:             # Test each input and output connector
lbessard@27:             for input in self.Inputs:
lbessard@27:                 if name == input.GetName():
lbessard@27:                     return input
lbessard@27:             for output in self.Outputs:
lbessard@27:                 if name == output.GetName():
lbessard@27:                     return output
etisserant@0:         # Test each input connector
etisserant@0:         for input in self.Inputs:
etisserant@0:             input_pos = input.GetRelPosition()
etisserant@0:             if position.x == self.Pos.x + input_pos.x and position.y == self.Pos.y + input_pos.y:
etisserant@0:                 return input
etisserant@0:         # Test each output connector
etisserant@0:         for output in self.Outputs:
etisserant@0:             output_pos = output.GetRelPosition()
etisserant@0:             if position.x == self.Pos.x + output_pos.x and position.y == self.Pos.y + output_pos.y:
etisserant@0:                 return output
etisserant@0:         return None
etisserant@0:     
lbessard@28:     def GetInputTypes(self):
lbessard@28:         return tuple([input.GetType() for input in self.Inputs])
lbessard@28:     
lbessard@99:     def GetConnectionResultType(self, connector):
lbessard@99:         resulttype = None
lbessard@99:         for input in self.Inputs:
lbessard@99:             name = input.GetName()
lbessard@99:             if input != connector and (name.startswith("IN") or name in ["MN", "MX"]):
lbessard@99:                 inputtype = input.GetConnectedType()
lbessard@99:                 if resulttype is None or inputtype is not None and IsOfType(inputtype, resulttype):
lbessard@99:                     resulttype = inputtype
lbessard@99:         for output in self.Outputs:
lbessard@99:             name = output.GetName()
lbessard@99:             if output != connector and name == "OUT":
lbessard@99:                 outputtype = output.GetConnectedType()
lbessard@99:                 if resulttype is None or outputtype is not None and IsOfType(outputtype, resulttype):
lbessard@99:                     resulttype = outputtype
lbessard@99:         return resulttype
lbessard@99:     
etisserant@0:     # Returns all the block connectors 
etisserant@0:     def GetConnectors(self):
etisserant@0:         return {"inputs" : self.Inputs, "outputs" : self.Outputs}
etisserant@0:     
etisserant@0:     # Test if point given is on one of the block connectors
lbessard@3:     def TestConnector(self, pt, exclude = True):
etisserant@0:         # Test each input connector
etisserant@0:         for input in self.Inputs:
etisserant@0:             if input.TestPoint(pt, exclude):
etisserant@0:                 return input
etisserant@0:         # Test each output connector
etisserant@0:         for output in self.Outputs:
etisserant@0:             if output.TestPoint(pt, exclude):
etisserant@0:                 return output
etisserant@0:         return None
etisserant@0:     
lbessard@2:     # Changes the block type
lbessard@90:     def SetType(self, type, extension, inputs = None, connectors = {}):
lbessard@27:         if type != self.Type or self.Extension != extension: 
lbessard@42:             if type != self.Type:
lbessard@42:                 self.Type = type
lbessard@64:                 dc = wx.ClientDC(self.Parent)
lbessard@42:                 self.TypeSize = dc.GetTextExtent(self.Type)
lbessard@27:             self.Extension = extension
lbessard@3:             # Find the block definition from type given and create the corresponding
lbessard@3:             # inputs and outputs
lbessard@28:             blocktype = GetBlockType(type, inputs)
lbessard@3:             if blocktype:
lbessard@90:                 self.Colour = wx.BLACK
lbessard@3:                 inputs = [input for input in blocktype["inputs"]]
lbessard@3:                 outputs = [output for output in blocktype["outputs"]]
lbessard@3:                 if blocktype["extensible"]:
lbessard@3:                     start = int(inputs[-1][0].replace("IN", ""))
lbessard@3:                     for i in xrange(self.Extension - len(blocktype["inputs"])):
lbessard@3:                         start += 1
lbessard@27:                         inputs.append(("IN%d"%start, inputs[-1][1], inputs[-1][2]))
lbessard@16:             else:
lbessard@90:                 self.Colour = wx.RED
lbessard@90:                 if "inputs" in connectors:
lbessard@90:                     inputs = connectors["inputs"]
lbessard@90:                 else:
lbessard@90:                     inputs = []
lbessard@90:                 if "outputs" in connectors:
lbessard@90:                     outputs = connectors["outputs"]
lbessard@90:                 else:
lbessard@90:                     outputs = []
lbessard@90:             self.Pen = wx.Pen(self.Colour)
lbessard@3:             self.Clean()
lbessard@3:             # Extract the inputs properties and create the corresponding connector
lbessard@3:             self.Inputs = []
lbessard@3:             for input_name, input_type, input_modifier in inputs:
lbessard@64:                 connector = Connector(self, input_name, input_type, wx.Point(0, 0), WEST, onlyone = True)
lbessard@3:                 if input_modifier == "negated":
lbessard@3:                     connector.SetNegated(True)
lbessard@3:                 elif input_modifier != "none":
lbessard@3:                     connector.SetEdge(input_modifier)
lbessard@3:                 self.Inputs.append(connector)
lbessard@3:             # Extract the outputs properties and create the corresponding connector
lbessard@3:             self.Outputs = []
lbessard@3:             for output_name, output_type, output_modifier in outputs:
lbessard@64:                 connector = Connector(self, output_name, output_type, wx.Point(0, 0), EAST)
lbessard@3:                 if output_modifier == "negated":
lbessard@3:                     connector.SetNegated(True)
lbessard@3:                 elif output_modifier != "none":
lbessard@3:                     connector.SetEdge(output_modifier)
lbessard@3:                 self.Outputs.append(connector)
lbessard@42:             self.RefreshMinSize()
lbessard@3:             self.RefreshConnectors()
lbessard@3:             self.RefreshBoundingBox()
lbessard@2:     
etisserant@0:     # Returns the block type
etisserant@0:     def GetType(self):
etisserant@0:         return self.Type
etisserant@0:     
etisserant@0:     # Changes the block name
etisserant@0:     def SetName(self, name):
etisserant@0:         self.Name = name
lbessard@42:         self.RefreshNameSize()
etisserant@0:     
etisserant@0:     # Returs the block name
etisserant@0:     def GetName(self):
etisserant@0:         return self.Name
etisserant@0:     
lbessard@2:     # Changes the extension name
lbessard@2:     def SetExtension(self, extension):
lbessard@2:         self.Extension = extension
lbessard@2:     
lbessard@2:     # Returs the extension name
lbessard@2:     def GetExtension(self):
lbessard@2:         return self.Extension
lbessard@2:     
lbessard@42:     # Refresh the block minimum size
lbessard@42:     def RefreshMinSize(self):
etisserant@0:         # Calculate the inputs maximum width
etisserant@0:         max_input = 0
etisserant@0:         for input in self.Inputs:
lbessard@42:             w, h = input.GetNameSize()
etisserant@0:             max_input = max(max_input, w)
etisserant@0:         # Calculate the outputs maximum width
etisserant@0:         max_output = 0
etisserant@0:         for output in self.Outputs:
lbessard@42:             w, h = output.GetNameSize()
etisserant@0:             max_output = max(max_output, w)
lbessard@42:         width = max(self.TypeSize[0] + 10, max_input + max_output + 15)
etisserant@0:         height = (max(len(self.Inputs), len(self.Outputs)) + 1) * BLOCK_LINE_SIZE
lbessard@42:         self.MinSize = width, height
lbessard@42:     
lbessard@42:     # Returns the block minimum size
lbessard@42:     def GetMinSize(self):
lbessard@42:         return self.MinSize
etisserant@0:     
etisserant@0:     # Changes the negated property of the connector handled
etisserant@0:     def SetConnectorNegated(self, negated):
etisserant@0:         handle_type, handle = self.Handle
etisserant@0:         if handle_type == HANDLE_CONNECTOR:
etisserant@0:             handle.SetNegated(negated)
etisserant@0:             self.RefreshModel(False)
etisserant@0:     
etisserant@0:     # Changes the edge property of the connector handled
etisserant@0:     def SetConnectorEdge(self, edge):
etisserant@0:         handle_type, handle = self.Handle
etisserant@0:         if handle_type == HANDLE_CONNECTOR:
etisserant@0:             handle.SetEdge(edge)
etisserant@0:             self.RefreshModel(False)
etisserant@0:     
lbessard@2:     # Method called when a LeftDClick event have been generated
lbessard@27:     def OnLeftDClick(self, event, dc, scaling):
lbessard@3:         # Edit the block properties
lbessard@2:         self.Parent.EditBlockContent(self)
lbessard@2:     
etisserant@0:     # Method called when a RightUp event have been generated
lbessard@27:     def OnRightUp(self, event, dc, scaling):
lbessard@27:         pos = GetScaledEventPosition(event, dc, scaling)
etisserant@0:         # Popup the menu with special items for a block and a connector if one is handled
etisserant@0:         connector = self.TestConnector(pos, False)
etisserant@0:         if connector:
etisserant@0:             self.Handle = (HANDLE_CONNECTOR, connector)
etisserant@0:             self.Parent.PopupBlockMenu(connector)
etisserant@0:         else:
etisserant@0:             self.Parent.PopupBlockMenu()
etisserant@0:     
etisserant@0:     # Refreshes the block model
etisserant@0:     def RefreshModel(self, move=True):
etisserant@0:         self.Parent.RefreshBlockModel(self)
etisserant@0:         # If block has moved, refresh the model of wires connected to outputs
etisserant@0:         if move:
etisserant@0:             for output in self.Outputs:
etisserant@0:                 output.RefreshWires()
etisserant@0:     
etisserant@0:     # Draws block
etisserant@0:     def Draw(self, dc):
lbessard@90:         dc.SetPen(self.Pen)
lbessard@64:         dc.SetBrush(wx.WHITE_BRUSH)
lbessard@90:         dc.SetTextForeground(self.Colour)
etisserant@0:         # Draw a rectangle with the block size
etisserant@0:         dc.DrawRectangle(self.Pos.x, self.Pos.y, self.Size[0] + 1, self.Size[1] + 1)
etisserant@0:         # Draw block name and block type
lbessard@42:         dc.DrawText(self.Name, self.Pos.x + (self.Size[0] - self.NameSize[0]) / 2,
lbessard@42:                 self.Pos.y - (self.NameSize[1] + 2))
lbessard@42:         dc.DrawText(self.Type, self.Pos.x + (self.Size[0] - self.TypeSize[0]) / 2,
etisserant@0:                 self.Pos.y + 5)
etisserant@0:         # Draw inputs and outputs connectors
etisserant@0:         for input in self.Inputs:
etisserant@0:             input.Draw(dc)
etisserant@0:         for output in self.Outputs:
etisserant@0:             output.Draw(dc)
etisserant@0:         Graphic_Element.Draw(self, dc)
lbessard@90:         dc.SetTextForeground(wx.BLACK)
etisserant@0: 
etisserant@0: 
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: #                        Function Block Diagram Variable
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: 
etisserant@0: """
etisserant@0: Class that implements the graphic representation of a variable
etisserant@0: """
etisserant@0: 
etisserant@0: class FBD_Variable(Graphic_Element):
etisserant@0: 
etisserant@0:     # Create a new variable
etisserant@0:     def __init__(self, parent, type, name, value_type, id = None):
etisserant@0:         Graphic_Element.__init__(self, parent)
lbessard@3:         self.Type = None
lbessard@3:         self.ValueType = None
etisserant@0:         self.Name = name
etisserant@0:         self.Id = id
etisserant@0:         self.Input = None
etisserant@0:         self.Output = None
lbessard@42:         self.RefreshNameSize()
lbessard@3:         self.SetType(type, value_type)
etisserant@0:     
etisserant@0:     # Destructor
etisserant@0:     def __del__(self):
etisserant@0:         self.Input = None
etisserant@0:         self.Output = None
etisserant@0:     
etisserant@0:     # Unconnect connector
etisserant@0:     def Clean(self):
etisserant@0:         if self.Input:
lbessard@3:             self.Input.UnConnect(delete = True)
etisserant@0:         if self.Output:
lbessard@3:             self.Output.UnConnect(delete = True)
etisserant@0:     
etisserant@0:     # Delete this variable by calling the appropriate method
etisserant@0:     def Delete(self):
etisserant@0:         self.Parent.DeleteVariable(self)
etisserant@0:     
lbessard@42:     # Refresh the size of text for name
lbessard@42:     def RefreshNameSize(self):
lbessard@64:         dc = wx.ClientDC(self.Parent)
lbessard@42:         self.NameSize = dc.GetTextExtent(self.Name)
lbessard@42:     
etisserant@0:     # Refresh the variable bounding box
etisserant@0:     def RefreshBoundingBox(self):
etisserant@0:         if self.Type in (OUTPUT, INOUT):
etisserant@0:             bbx_x = self.Pos.x - CONNECTOR_SIZE
etisserant@0:         else:
etisserant@0:             bbx_x = self.Pos.x
etisserant@0:         if self.Type == INOUT:
etisserant@0:             bbx_width = self.Size[0] + 2 * CONNECTOR_SIZE
etisserant@0:         else:
etisserant@0:             bbx_width = self.Size[0] + CONNECTOR_SIZE
lbessard@64:         self.BoundingBox = wx.Rect(bbx_x, self.Pos.y, bbx_width + 1, self.Size[1] + 1)
etisserant@0:     
etisserant@0:     # Refresh the position of the variable connector
etisserant@0:     def RefreshConnectors(self):
etisserant@0:         if self.Input:
lbessard@64:             self.Input.SetPosition(wx.Point(0, self.Size[1] / 2))
etisserant@0:         if self.Output:
lbessard@64:             self.Output.SetPosition(wx.Point(self.Size[0], self.Size[1] / 2))
lbessard@28:         self.RefreshConnected()
etisserant@0:     
etisserant@0:     # Refresh the position of wires connected to connector
etisserant@0:     def RefreshConnected(self, exclude = []):
etisserant@0:         if self.Input:
etisserant@0:             self.Input.MoveConnected(exclude)
etisserant@0:         if self.Output:
etisserant@0:             self.Output.MoveConnected(exclude)
etisserant@0:         
etisserant@0:     # Test if point given is on the variable connector
etisserant@0:     def TestConnector(self, pt, exclude=True):
etisserant@0:         if self.Input and self.Input.TestPoint(pt, exclude):
etisserant@0:             return self.Input
etisserant@0:         if self.Output and self.Output.TestPoint(pt, exclude):
etisserant@0:             return self.Output
etisserant@0:         return None
etisserant@0:     
etisserant@0:     # Returns the block connector that starts with the point given if it exists 
lbessard@27:     def GetConnector(self, position, name = None):
lbessard@27:         # if a name is given
lbessard@27:         if name:
lbessard@27:             # Test input and output connector if they exists
lbessard@27:             if self.Input and name == self.Input.GetName():
lbessard@27:                 return self.Input
lbessard@27:             if self.Output and name == self.Output.GetName():
lbessard@27:                 return self.Output
etisserant@0:         # Test input connector if it exists
etisserant@0:         if self.Input:
etisserant@0:             input_pos = self.Input.GetRelPosition()
etisserant@0:             if position.x == self.Pos.x + input_pos.x and position.y == self.Pos.y + input_pos.y:
etisserant@0:                 return self.Input
etisserant@0:         # Test output connector if it exists
etisserant@0:         if self.Output:
etisserant@0:             output_pos = self.Output.GetRelPosition()
etisserant@0:             if position.x == self.Pos.x + output_pos.x and position.y == self.Pos.y + output_pos.y:
etisserant@0:                 return self.Output
etisserant@0:         return None
etisserant@0:     
etisserant@0:     # Returns all the block connectors 
etisserant@0:     def GetConnectors(self):
etisserant@0:         return {"input" : self.Input, "output" : self.Output}
etisserant@0:     
etisserant@0:     # Changes the negated property of the variable connector if handled
etisserant@0:     def SetConnectorNegated(self, negated):
etisserant@0:         handle_type, handle = self.Handle
etisserant@0:         if handle_type == HANDLE_CONNECTOR:
etisserant@0:             handle.SetNegated(negated)
etisserant@0:             self.RefreshModel(False)
etisserant@0:     
lbessard@3:     # Changes the variable type
lbessard@3:     def SetType(self, type, value_type):
lbessard@32:         if type != self.Type:
lbessard@3:             self.Type = type
lbessard@3:             self.Clean()
lbessard@3:             self.Input = None
lbessard@3:             self.Output = None
lbessard@3:             # Create an input or output connector according to variable type
lbessard@3:             if self.Type != INPUT:
lbessard@64:                 self.Input = Connector(self, "", value_type, wx.Point(0, 0), WEST, onlyone = True)
lbessard@3:             if self.Type != OUTPUT:
lbessard@64:                 self.Output = Connector(self, "", value_type, wx.Point(0, 0), EAST)
lbessard@3:             self.RefreshConnectors()
lbessard@32:         elif value_type != self.ValueType:
lbessard@32:             if self.Input:
lbessard@32:                 self.Input.SetType(value_type)
lbessard@32:             if self.Output:
lbessard@32:                 self.Output.SetType(value_type)            
lbessard@32:         self.RefreshConnectors()
lbessard@3:     
etisserant@0:     # Returns the variable type
etisserant@0:     def GetType(self):
etisserant@0:         return self.Type
etisserant@0:     
etisserant@0:     # Changes the variable name
etisserant@0:     def SetName(self, name):
etisserant@0:         self.Name = name
lbessard@42:         self.RefreshNameSize()
etisserant@0:     
etisserant@0:     # Returns the variable name
etisserant@0:     def GetName(self):
etisserant@0:         return self.Name
etisserant@0:     
etisserant@0:     # Returns the variable minimum size
etisserant@0:     def GetMinSize(self):
lbessard@42:         return self.NameSize[0] + 10, self.NameSize[1] + 10
etisserant@0:     
lbessard@3:     # Method called when a LeftDClick event have been generated
lbessard@27:     def OnLeftDClick(self, event, dc, scaling):
lbessard@3:         # Edit the variable properties
lbessard@3:         self.Parent.EditVariableContent(self)
lbessard@3:     
etisserant@0:     # Method called when a RightUp event have been generated
lbessard@27:     def OnRightUp(self, event, dc, scaling):
lbessard@27:         pos = GetScaledEventPosition(event, dc, scaling)
etisserant@0:         # Popup the menu with special items for a variable and a connector if it's handled
lbessard@27:         connector = self.TestConnector(pos, False)
etisserant@0:         if connector:
etisserant@0:             self.Handle = (HANDLE_CONNECTOR, connector)
etisserant@0:             self.Parent.PopupVariableMenu(connector)
etisserant@0:         else:
etisserant@0:             self.Parent.PopupVariableMenu()
etisserant@0:     
etisserant@0:     # Refreshes the variable model
etisserant@0:     def RefreshModel(self, move=True):
etisserant@0:         self.Parent.RefreshVariableModel(self)
etisserant@0:         # If variable has moved and variable is not of type OUTPUT, refresh the model
etisserant@0:         # of wires connected to output connector
etisserant@0:         if move and self.Type != OUTPUT:
etisserant@0:             if self.Output:
etisserant@0:                 self.Output.RefreshWires()
etisserant@0:     
etisserant@0:     # Draws variable
etisserant@0:     def Draw(self, dc):
lbessard@64:         dc.SetPen(wx.BLACK_PEN)
lbessard@64:         dc.SetBrush(wx.WHITE_BRUSH)
etisserant@0:         # Draw a rectangle with the variable size
etisserant@0:         dc.DrawRectangle(self.Pos.x, self.Pos.y, self.Size[0] + 1, self.Size[1] + 1)
etisserant@0:         # Draw variable name
lbessard@42:         dc.DrawText(self.Name, self.Pos.x + (self.Size[0] - self.NameSize[0]) / 2,
lbessard@42:                 self.Pos.y + (self.Size[1] - self.NameSize[1]) / 2)
etisserant@0:         # Draw connectors
etisserant@0:         if self.Input:
etisserant@0:             self.Input.Draw(dc)
etisserant@0:         if self.Output:    
etisserant@0:             self.Output.Draw(dc)
etisserant@0:         Graphic_Element.Draw(self, dc)
etisserant@0: 
etisserant@0: 
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: #                        Function Block Diagram Connector
etisserant@0: #-------------------------------------------------------------------------------
etisserant@0: 
etisserant@0: """
etisserant@0: Class that implements the graphic representation of a connection
etisserant@0: """
etisserant@0: 
etisserant@0: class FBD_Connector(Graphic_Element):
etisserant@0: 
etisserant@0:     # Create a new connection
etisserant@0:     def __init__(self, parent, type, name, id = None):
etisserant@0:         Graphic_Element.__init__(self, parent)
etisserant@0:         self.Type = type
etisserant@0:         self.Name = name
etisserant@0:         self.Id = id
lbessard@64:         self.Pos = wx.Point(0, 0)
lbessard@64:         self.Size = wx.Size(0, 0)
etisserant@0:         # Create an input or output connector according to connection type
etisserant@0:         if self.Type == CONNECTOR:
lbessard@64:             self.Connector = Connector(self, "", "ANY", wx.Point(0, 0), WEST, onlyone = True)
lbessard@64:         else:
lbessard@64:             self.Connector = Connector(self, "", "ANY", wx.Point(0, 0), EAST)
etisserant@0:         self.RefreshConnectors()
lbessard@42:         self.RefreshNameSize()
etisserant@0:     
etisserant@0:     # Destructor
etisserant@0:     def __del__(self):
etisserant@0:         self.Connector = None
etisserant@0:     
etisserant@0:     # Unconnect connector
etisserant@0:     def Clean(self):
etisserant@0:         if self.Connector:
lbessard@28:             self.Connector.UnConnect(delete = True)
etisserant@0:     
etisserant@0:     # Delete this connection by calling the appropriate method
etisserant@0:     def Delete(self):
etisserant@0:         self.Parent.DeleteConnection(self)
etisserant@0:     
lbessard@42:     # Refresh the size of text for name
lbessard@42:     def RefreshNameSize(self):
lbessard@64:         dc = wx.ClientDC(self.Parent)
lbessard@42:         self.NameSize = dc.GetTextExtent(self.Name)
lbessard@42:     
etisserant@0:     # Refresh the connection bounding box
etisserant@0:     def RefreshBoundingBox(self):
etisserant@0:         if self.Type == CONNECTOR:
etisserant@0:             bbx_x = self.Pos.x - CONNECTOR_SIZE
etisserant@0:         else:
etisserant@0:             bbx_x = self.Pos.x
etisserant@0:         bbx_width = self.Size[0] + CONNECTOR_SIZE
lbessard@64:         self.BoundingBox = wx.Rect(bbx_x, self.Pos.y, bbx_width, self.Size[1])
etisserant@0:     
etisserant@0:     # Refresh the position of the connection connector
etisserant@0:     def RefreshConnectors(self):
etisserant@0:         if self.Type == CONNECTOR:
lbessard@64:             self.Connector.SetPosition(wx.Point(0, self.Size[1] / 2))
lbessard@64:         else:
lbessard@64:             self.Connector.SetPosition(wx.Point(self.Size[0], self.Size[1] / 2))
lbessard@28:         self.RefreshConnected()
etisserant@0:     
etisserant@0:     # Refresh the position of wires connected to connector
etisserant@0:     def RefreshConnected(self, exclude = []):
etisserant@0:         if self.Connector:
etisserant@0:             self.Connector.MoveConnected(exclude)
etisserant@0:     
etisserant@0:     # Test if point given is on the connection connector
etisserant@0:     def TestConnector(self, pt, exclude=True):
etisserant@0:         if self.Connector and self.Connector.TestPoint(pt, exclude):
etisserant@0:             return self.Connector
etisserant@0:         return None
etisserant@0:     
etisserant@0:     # Returns the connection connector
lbessard@27:     def GetConnector(self, position = None, name = None):
etisserant@0:         return self.Connector
etisserant@0:     
lbessard@28:     # Changes the variable type
lbessard@28:     def SetType(self, type):
lbessard@28:         if type != self.Type:
lbessard@28:             self.Type = type
lbessard@28:             self.Clean()
lbessard@28:             # Create an input or output connector according to connection type
lbessard@28:             if self.Type == CONNECTOR:
lbessard@64:                 self.Connector = Connector(self, "", "ANY", wx.Point(0, 0), WEST, onlyone = True)
lbessard@28:             else:
lbessard@64:                 self.Connector = Connector(self, "", "ANY", wx.Point(0, 0), EAST)
lbessard@28:             self.RefreshConnectors()
lbessard@28:     
etisserant@0:     # Returns the connection type
etisserant@0:     def GetType(self):
etisserant@0:         return self.Type
etisserant@0:     
etisserant@0:     # Changes the connection name
etisserant@0:     def SetName(self, name):
etisserant@0:         self.Name = name
lbessard@42:         self.RefreshNameSize()
etisserant@0:         
etisserant@0:     # Returns the connection name
etisserant@0:     def GetName(self):
etisserant@0:         return self.Name
etisserant@0:     
etisserant@0:     # Returns the connection minimum size
etisserant@0:     def GetMinSize(self):
lbessard@42:         text_width, text_height = self.NameSize
etisserant@0:         if text_height % 2 == 1:
etisserant@0:             text_height += 1
etisserant@0:         return text_width + text_height + 20, text_height + 10
etisserant@0:     
lbessard@28:     # Method called when a LeftDClick event have been generated
lbessard@28:     def OnLeftDClick(self, event, dc, scaling):
lbessard@28:         # Edit the connection properties
lbessard@28:         self.Parent.EditConnectionContent(self)
lbessard@28:     
etisserant@0:     # Method called when a RightUp event have been generated
lbessard@27:     def OnRightUp(self, event, dc, scaling):
etisserant@0:         # Popup the default menu
etisserant@0:         self.Parent.PopupDefaultMenu()
etisserant@0:     
etisserant@0:     # Refreshes the connection model
etisserant@0:     def RefreshModel(self, move=True):
etisserant@0:         self.Parent.RefreshConnectionModel(self)
etisserant@0:         # If connection has moved and connection is of type CONTINUATION, refresh
etisserant@0:         # the model of wires connected to connector
etisserant@0:         if move and self.Type == CONTINUATION:
etisserant@0:             if self.Connector:
etisserant@0:                 self.Connector.RefreshWires()
etisserant@0:     
etisserant@0:     # Draws connection
etisserant@0:     def Draw(self, dc):
lbessard@64:         dc.SetPen(wx.BLACK_PEN)
lbessard@64:         dc.SetBrush(wx.WHITE_BRUSH)
etisserant@0:         # Draw a rectangle with the connection size with arrows in 
etisserant@0:         dc.DrawRectangle(self.Pos.x, self.Pos.y, self.Size[0] + 1, self.Size[1] + 1)
lbessard@42:         arrowsize = min(self.Size[1] / 2, (self.Size[0] - self.NameSize[0] - 10) / 2)
etisserant@0:         dc.DrawLine(self.Pos.x, self.Pos.y, self.Pos.x + arrowsize, 
etisserant@0:                 self.Pos.y + self.Size[1] / 2)
etisserant@0:         dc.DrawLine(self.Pos.x + arrowsize, self.Pos.y + self.Size[1] / 2, 
etisserant@0:                 self.Pos.x, self.Pos.y + self.Size[1])
etisserant@0:         dc.DrawLine(self.Pos.x + self.Size[0] - arrowsize, self.Pos.y, 
etisserant@0:                 self.Pos.x + self.Size[0], self.Pos.y + self.Size[1] / 2)
etisserant@0:         dc.DrawLine(self.Pos.x + self.Size[0], self.Pos.y + self.Size[1] / 2, 
etisserant@0:                 self.Pos.x + self.Size[0] - arrowsize, self.Pos.y + self.Size[1])
etisserant@0:         # Draw variable name
lbessard@42:         dc.DrawText(self.Name, self.Pos.x + (self.Size[0] - self.NameSize[0]) / 2,
lbessard@42:                 self.Pos.y + (self.Size[1] - self.NameSize[1]) / 2)
etisserant@0:         # Draw connector
etisserant@0:         if self.Connector:
etisserant@0:             self.Connector.Draw(dc)
etisserant@0:         Graphic_Element.Draw(self, dc)