#!/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 graphics.GraphicCommons import *
from plcopen.structures import *
#-------------------------------------------------------------------------------
# Function Block Diagram Block
#-------------------------------------------------------------------------------
"""
Class that implements the graphic representation of a function block
"""
def TestConnectorName(name, block_type):
return name in ["OUT", "MN", "MX"] or name.startswith("IN") and (block_type, name) != ("EXPT", "IN2")
class FBD_Block(Graphic_Element):
# Create a new block
def __init__(self, parent, type, name, id = None, extension = 0, inputs = None, connectors = {}, executionControl = False, executionOrder = 0):
Graphic_Element.__init__(self, parent)
self.Type = None
self.Description = None
self.Extension = None
self.ExecutionControl = False
self.Id = id
self.SetName(name)
self.SetExecutionOrder(executionOrder)
self.Inputs = []
self.Outputs = []
self.Colour = wx.BLACK
self.Pen = MiterPen(wx.BLACK)
self.SetType(type, extension, inputs, connectors, executionControl)
self.Highlights = {}
# Make a clone of this FBD_Block
def Clone(self, parent, id = None, name = "", pos = None):
if self.Name != "" and name == "":
name = self.Name
block = FBD_Block(parent, self.Type, name, id, self.Extension)
block.SetSize(self.Size[0], self.Size[1])
if pos is not None:
block.SetPosition(pos.x, pos.y)
else:
block.SetPosition(self.Pos.x, self.Pos.y)
block.Inputs = [input.Clone(block) for input in self.Inputs]
block.Outputs = [output.Clone(block) for output in self.Outputs]
return block
def GetConnectorTranslation(self, element):
return dict(zip(self.Inputs + self.Outputs, element.Inputs + element.Outputs))
def Flush(self):
for input in self.Inputs:
input.Flush()
self.Inputs = []
for output in self.Outputs:
output.Flush()
self.Outputs = []
# Returns the RedrawRect
def GetRedrawRect(self, movex = 0, movey = 0):
rect = Graphic_Element.GetRedrawRect(self, movex, movey)
if movex != 0 or movey != 0:
for input in self.Inputs:
if input.IsConnected():
rect = rect.Union(input.GetConnectedRedrawRect(movex, movey))
for output in self.Outputs:
if output.IsConnected():
rect = rect.Union(output.GetConnectedRedrawRect(movex, movey))
return rect
# Delete this block by calling the appropriate method
def Delete(self):
self.Parent.DeleteBlock(self)
# Unconnect all inputs and outputs
def Clean(self):
for input in self.Inputs:
input.UnConnect(delete = True)
for output in self.Outputs:
output.UnConnect(delete = True)
# Refresh the size of text for name
def RefreshNameSize(self):
self.NameSize = self.Parent.GetTextExtent(self.Name)
# Refresh the size of text for execution order
def RefreshExecutionOrderSize(self):
self.ExecutionOrderSize = self.Parent.GetTextExtent(str(self.ExecutionOrder))
# Returns if the point given is in the bounding box
def HitTest(self, pt, connectors=True):
if self.Name != "":
test_text = self.GetTextBoundingBox().InsideXY(pt.x, pt.y)
else:
test_text = False
test_block = self.GetBlockBoundingBox(connectors).InsideXY(pt.x, pt.y)
return test_text or test_block
# Returns the bounding box of the name outside the block
def GetTextBoundingBox(self):
# Calculate the size of the name outside the block
text_width, text_height = self.NameSize
return wx.Rect(self.Pos.x + (self.Size[0] - text_width) / 2,
self.Pos.y - (text_height + 2),
text_width,
text_height)
# Returns the bounding box of function block without name outside
def GetBlockBoundingBox(self, connectors=True):
bbx_x, bbx_y = self.Pos.x, self.Pos.y
bbx_width, bbx_height = self.Size
if connectors:
bbx_x -= min(1, len(self.Inputs)) * CONNECTOR_SIZE
bbx_width += (min(1, len(self.Inputs)) + min(1, len(self.Outputs))) * CONNECTOR_SIZE
if self.ExecutionOrder != 0:
bbx_x = min(bbx_x, self.Pos.x + self.Size[0] - self.ExecutionOrderSize[0])
bbx_width = max(bbx_width, bbx_width + self.Pos.x + self.ExecutionOrderSize[0] - bbx_x - self.Size[0])
bbx_height = bbx_height + (self.ExecutionOrderSize[1] + 2)
return wx.Rect(bbx_x, bbx_y, bbx_width + 1, bbx_height + 1)
# Refresh the block bounding box
def RefreshBoundingBox(self):
self.BoundingBox = self.GetBlockBoundingBox()
if self.Name != "":
self.BoundingBox.Union(self.GetTextBoundingBox())
# Refresh the positions of the block connectors
def RefreshConnectors(self):
scaling = self.Parent.GetScaling()
# Calculate the size for the connector lines
lines = max(len(self.Inputs), len(self.Outputs))
if lines > 0:
linesize = max((self.Size[1] - BLOCK_LINE_SIZE) / lines, BLOCK_LINE_SIZE)
# Update inputs and outputs positions
position = BLOCK_LINE_SIZE + linesize / 2
for i in xrange(lines):
if scaling is not None:
ypos = round_scaling(self.Pos.y + position, scaling[1]) - self.Pos.y
else:
ypos = position
if i < len(self.Inputs):
self.Inputs[i].SetPosition(wx.Point(0, ypos))
if i < len(self.Outputs):
self.Outputs[i].SetPosition(wx.Point(self.Size[0], ypos))
position += linesize
self.RefreshConnected()
# Refresh the positions of wires connected to inputs and outputs
def RefreshConnected(self, exclude = []):
for input in self.Inputs:
input.MoveConnected(exclude)
for output in self.Outputs:
output.MoveConnected(exclude)
# Returns the block connector that starts with the point given if it exists
def GetConnector(self, position, output_name = None, input_name = None):
if input_name is not None:
# Test each input connector
for input in self.Inputs:
if input_name == input.GetName():
return input
if output_name is not None:
# Test each output connector
for output in self.Outputs:
if output_name == output.GetName():
return output
if input_name is None and output_name is None:
return self.FindNearestConnector(position, self.Inputs + self.Outputs)
return None
def GetInputTypes(self):
return tuple([input.GetType(True) for input in self.Inputs if input.GetName() != "EN"])
def SetOutputValues(self, values):
for output in self.Outputs:
output.SetValue(values.get(ouput.getName(), None))
def GetConnectionResultType(self, connector, connectortype):
if not TestConnectorName(connector.GetName(), self.Type):
return connectortype
resulttype = connectortype
for input in self.Inputs:
if input != connector and input.GetType(True) == "ANY" and TestConnectorName(input.GetName(), self.Type):
inputtype = input.GetConnectedType()
if resulttype is None or inputtype is not None and self.IsOfType(inputtype, resulttype):
resulttype = inputtype
for output in self.Outputs:
if output != connector and output.GetType(True) == "ANY" and TestConnectorName(output.GetName(), self.Type):
outputtype = output.GetConnectedType()
if resulttype is None or outputtype is not None and self.IsOfType(outputtype, resulttype):
resulttype = outputtype
return resulttype
# Returns all the block connectors
def GetConnectors(self):
return {"inputs" : self.Inputs, "outputs" : self.Outputs}
# Test if point given is on one of the block connectors
def TestConnector(self, pt, direction = None, exclude = True):
# Test each input connector
for input in self.Inputs:
if input.TestPoint(pt, direction, exclude):
return input
# Test each output connector
for output in self.Outputs:
if output.TestPoint(pt, direction, exclude):
return output
return None
# Changes the block type
def SetType(self, type, extension, inputs = None, connectors = {}, executionControl = False):
if type != self.Type or self.Extension != extension or executionControl != self.ExecutionControl:
if type != self.Type:
self.Type = type
self.TypeSize = self.Parent.GetTextExtent(self.Type)
self.Extension = extension
self.ExecutionControl = executionControl
# Find the block definition from type given and create the corresponding
# inputs and outputs
blocktype = self.Parent.GetBlockType(type, inputs)
if blocktype:
self.Colour = wx.BLACK
inputs = [input for input in blocktype["inputs"]]
outputs = [output for output in blocktype["outputs"]]
if blocktype["extensible"]:
start = int(inputs[-1][0].replace("IN", ""))
for i in xrange(self.Extension - len(blocktype["inputs"])):
start += 1
inputs.append(("IN%d"%start, inputs[-1][1], inputs[-1][2]))
comment = blocktype["comment"]
self.Description = _(comment) + blocktype.get("usage", "")
else:
self.Colour = wx.RED
inputs = connectors.get("inputs", [])
outputs = connectors.get("outputs", [])
self.Description = None
if self.ExecutionControl:
inputs.insert(0, ("EN","BOOL","none"))
outputs.insert(0, ("ENO","BOOL","none"))
self.Pen = MiterPen(self.Colour)
# Extract the inputs properties and create or modify the corresponding connector
input_connectors = []
for input_name, input_type, input_modifier in inputs:
connector = Connector(self, input_name, input_type, wx.Point(0, 0), WEST, onlyone = True)
if input_modifier == "negated":
connector.SetNegated(True)
elif input_modifier != "none":
connector.SetEdge(input_modifier)
for input in self.Inputs:
if input.GetName() == input_name:
wires = input.GetWires()[:]
input.UnConnect()
for wire in wires:
connector.Connect(wire)
break
input_connectors.append(connector)
for input in self.Inputs:
input.UnConnect(delete = True)
self.Inputs = input_connectors
# Extract the outputs properties and create or modify the corresponding connector
output_connectors = []
for output_name, output_type, output_modifier in outputs:
connector = Connector(self, output_name, output_type, wx.Point(0, 0), EAST)
if output_modifier == "negated":
connector.SetNegated(True)
elif output_modifier != "none":
connector.SetEdge(output_modifier)
for output in self.Outputs:
if output.GetName() == output_name:
wires = output.GetWires()[:]
output.UnConnect()
for wire in wires:
connector.Connect(wire)
break
output_connectors.append(connector)
for output in self.Outputs:
output.UnConnect(delete = True)
self.Outputs = output_connectors
self.RefreshMinSize()
self.RefreshConnectors()
for output in self.Outputs:
output.RefreshWires()
self.RefreshBoundingBox()
# Returns the block type
def GetType(self):
return self.Type
# Changes the block name
def SetName(self, name):
self.Name = name
self.RefreshNameSize()
# Returs the block name
def GetName(self):
return self.Name
# Changes the extension name
def SetExtension(self, extension):
self.Extension = extension
# Returs the extension name
def GetExtension(self):
return self.Extension
# Changes the execution order
def SetExecutionOrder(self, executionOrder):
self.ExecutionOrder = executionOrder
self.RefreshExecutionOrderSize()
# Returs the execution order
def GetExecutionOrder(self):
return self.ExecutionOrder
# Returs the execution order
def GetExecutionControl(self):
return self.ExecutionControl
# Refresh the block minimum size
def RefreshMinSize(self):
# Calculate the inputs maximum width
max_input = 0
for input in self.Inputs:
w, h = input.GetNameSize()
max_input = max(max_input, w)
# Calculate the outputs maximum width
max_output = 0
for output in self.Outputs:
w, h = output.GetNameSize()
max_output = max(max_output, w)
width = max(self.TypeSize[0] + 10, max_input + max_output + 15)
height = (max(len(self.Inputs), len(self.Outputs)) + 1) * BLOCK_LINE_SIZE
self.MinSize = width, height
# Returns the block minimum size
def GetMinSize(self):
return self.MinSize
# Changes the negated property of the connector handled
def SetConnectorNegated(self, negated):
handle_type, handle = self.Handle
if handle_type == HANDLE_CONNECTOR:
handle.SetNegated(negated)
self.RefreshModel(False)
# Changes the edge property of the connector handled
def SetConnectorEdge(self, edge):
handle_type, handle = self.Handle
if handle_type == HANDLE_CONNECTOR:
handle.SetEdge(edge)
self.RefreshModel(False)
## # Method called when a Motion event have been generated
## def OnMotion(self, event, dc, scaling):
## if not event.Dragging():
## pos = event.GetLogicalPosition(dc)
## for input in self.Inputs:
## rect = input.GetRedrawRect()
## if rect.InsideXY(pos.x, pos.y):
## print "Find input"
## tip = wx.TipWindow(self.Parent, "Test")
## tip.SetBoundingRect(rect)
## return Graphic_Element.OnMotion(self, event, dc, scaling)
# Method called when a LeftDClick event have been generated
def OnLeftDClick(self, event, dc, scaling):
# Edit the block properties
self.Parent.EditBlockContent(self)
# Method called when a RightUp event have been generated
def OnRightUp(self, event, dc, scaling):
pos = GetScaledEventPosition(event, dc, scaling)
# Popup the menu with special items for a block and a connector if one is handled
connector = self.TestConnector(pos, exclude=False)
if connector:
self.Handle = (HANDLE_CONNECTOR, connector)
self.Parent.PopupBlockMenu(connector)
else:
self.Parent.PopupBlockMenu()
# Refreshes the block model
def RefreshModel(self, move=True):
self.Parent.RefreshBlockModel(self)
# If block has moved, refresh the model of wires connected to outputs
if move:
for output in self.Outputs:
output.RefreshWires()
def GetToolTipValue(self):
return self.Description
# Adds an highlight to the block
def AddHighlight(self, infos, start, end ,highlight_type):
if infos[0] in ["type", "name"] and start[0] == 0 and end[0] == 0:
highlights = self.Highlights.setdefault(infos[0], [])
AddHighlight(highlights, (start, end, highlight_type))
elif infos[0] == "input" and infos[1] < len(self.Inputs):
self.Inputs[infos[1]].AddHighlight(infos[2:], start, end, highlight_type)
elif infos[0] == "output" and infos[1] < len(self.Outputs):
self.Outputs[infos[1]].AddHighlight(infos[2:], start, end, highlight_type)
# Removes an highlight from the block
def RemoveHighlight(self, infos, start, end, highlight_type):
if infos[0] in ["type", "name"]:
highlights = self.Highlights.get(infos[0], [])
if RemoveHighlight(highlights, (start, end, highlight_type)) and len(highlights) == 0:
self.Highlights.pop(infos[0])
elif infos[0] == "input" and infos[1] < len(self.Inputs):
self.Inputs[infos[1]].RemoveHighlight(infos[2:], start, end, highlight_type)
elif infos[0] == "output" and infos[1] < len(self.Outputs):
self.Outputs[infos[1]].RemoveHighlight(infos[2:], start, end, highlight_type)
# Removes all the highlights of one particular type from the block
def ClearHighlight(self, highlight_type=None):
if highlight_type is None:
self.Highlights = {}
else:
highlight_items = self.Highlights.items()
for name, highlights in highlight_items:
highlights = ClearHighlights(highlights, highlight_type)
if len(highlights) == 0:
self.Highlights.pop(name)
for input in self.Inputs:
input.ClearHighlights(highlight_type)
for output in self.Outputs:
output.ClearHighlights(highlight_type)
# Draws block
def Draw(self, dc):
Graphic_Element.Draw(self, dc)
dc.SetPen(self.Pen)
dc.SetBrush(wx.WHITE_BRUSH)
dc.SetTextForeground(self.Colour)
if getattr(dc, "printing", False):
name_size = dc.GetTextExtent(self.Name)
type_size = dc.GetTextExtent(self.Type)
executionorder_size = dc.GetTextExtent(str(self.ExecutionOrder))
else:
name_size = self.NameSize
type_size = self.TypeSize
executionorder_size = self.ExecutionOrderSize
# Draw a rectangle with the block size
dc.DrawRectangle(self.Pos.x, self.Pos.y, self.Size[0] + 1, self.Size[1] + 1)
# Draw block name and block type
name_pos = (self.Pos.x + (self.Size[0] - name_size[0]) / 2,
self.Pos.y - (name_size[1] + 2))
type_pos = (self.Pos.x + (self.Size[0] - type_size[0]) / 2,
self.Pos.y + 5)
dc.DrawText(self.Name, name_pos[0], name_pos[1])
dc.DrawText(self.Type, type_pos[0], type_pos[1])
# Draw inputs and outputs connectors
for input in self.Inputs:
input.Draw(dc)
for output in self.Outputs:
output.Draw(dc)
if self.ExecutionOrder != 0:
# Draw block execution order
dc.DrawText(str(self.ExecutionOrder), self.Pos.x + self.Size[0] - executionorder_size[0],
self.Pos.y + self.Size[1] + 2)
if not getattr(dc, "printing", False):
DrawHighlightedText(dc, self.Name, self.Highlights.get("name", []), name_pos[0], name_pos[1])
DrawHighlightedText(dc, self.Type, self.Highlights.get("type", []), type_pos[0], type_pos[1])
#-------------------------------------------------------------------------------
# Function Block Diagram Variable
#-------------------------------------------------------------------------------
"""
Class that implements the graphic representation of a variable
"""
class FBD_Variable(Graphic_Element):
# Create a new variable
def __init__(self, parent, type, name, value_type, id = None, executionOrder = 0):
Graphic_Element.__init__(self, parent)
self.Type = None
self.ValueType = None
self.Id = id
self.SetName(name)
self.SetExecutionOrder(executionOrder)
self.Input = None
self.Output = None
self.SetType(type, value_type)
self.Highlights = []
# Make a clone of this FBD_Variable
def Clone(self, parent, id = None, pos = None):
variable = FBD_Variable(parent, self.Type, self.Name, self.ValueType, id)
variable.SetSize(self.Size[0], self.Size[1])
if pos is not None:
variable.SetPosition(pos.x, pos.y)
else:
variable.SetPosition(self.Pos.x, self.Pos.y)
if self.Input:
variable.Input = self.Input.Clone(variable)
if self.Output:
variable.Output = self.Output.Clone(variable)
return variable
def GetConnectorTranslation(self, element):
connectors = {}
if self.Input is not None:
connectors[self.Input] = element.Input
if self.Output is not None:
connectors[self.Output] = element.Output
return connectors
def Flush(self):
if self.Input is not None:
self.Input.Flush()
self.Input = None
if self.Output is not None:
self.Output.Flush()
self.Output = None
# Returns the RedrawRect
def GetRedrawRect(self, movex = 0, movey = 0):
rect = Graphic_Element.GetRedrawRect(self, movex, movey)
if movex != 0 or movey != 0:
if self.Input and self.Input.IsConnected():
rect = rect.Union(self.Input.GetConnectedRedrawRect(movex, movey))
if self.Output and self.Output.IsConnected():
rect = rect.Union(self.Output.GetConnectedRedrawRect(movex, movey))
return rect
# Unconnect connector
def Clean(self):
if self.Input:
self.Input.UnConnect(delete = True)
if self.Output:
self.Output.UnConnect(delete = True)
# Delete this variable by calling the appropriate method
def Delete(self):
self.Parent.DeleteVariable(self)
# Refresh the size of text for name
def RefreshNameSize(self):
self.NameSize = self.Parent.GetTextExtent(self.Name)
# Refresh the size of text for execution order
def RefreshExecutionOrderSize(self):
self.ExecutionOrderSize = self.Parent.GetTextExtent(str(self.ExecutionOrder))
# Refresh the variable bounding box
def RefreshBoundingBox(self):
if self.Type in (OUTPUT, INOUT):
bbx_x = self.Pos.x - CONNECTOR_SIZE
else:
bbx_x = self.Pos.x
if self.Type == INOUT:
bbx_width = self.Size[0] + 2 * CONNECTOR_SIZE
else:
bbx_width = self.Size[0] + CONNECTOR_SIZE
bbx_x = min(bbx_x, self.Pos.x + (self.Size[0] - self.NameSize[0]) / 2)
bbx_width = max(bbx_width, self.NameSize[0])
bbx_height = self.Size[1]
if self.ExecutionOrder != 0:
bbx_x = min(bbx_x, self.Pos.x + self.Size[0] - self.ExecutionOrderSize[0])
bbx_width = max(bbx_width, bbx_width + self.Pos.x + self.ExecutionOrderSize[0] - bbx_x - self.Size[0])
bbx_height = bbx_height + (self.ExecutionOrderSize[1] + 2)
self.BoundingBox = wx.Rect(bbx_x, self.Pos.y, bbx_width + 1, bbx_height + 1)
# Refresh the position of the variable connector
def RefreshConnectors(self):
scaling = self.Parent.GetScaling()
if scaling is not None:
position = round_scaling(self.Pos.y + self.Size[1] / 2, scaling[1]) - self.Pos.y
else:
position = self.Size[1] / 2
if self.Input:
self.Input.SetPosition(wx.Point(0, position))
if self.Output:
self.Output.SetPosition(wx.Point(self.Size[0], position))
self.RefreshConnected()
# Refresh the position of wires connected to connector
def RefreshConnected(self, exclude = []):
if self.Input:
self.Input.MoveConnected(exclude)
if self.Output:
self.Output.MoveConnected(exclude)
# Test if point given is on the variable connector
def TestConnector(self, pt, direction = None, exclude=True):
if self.Input and self.Input.TestPoint(pt, direction, exclude):
return self.Input
if self.Output and self.Output.TestPoint(pt, direction, exclude):
return self.Output
return None
# Returns the block connector that starts with the point given if it exists
def GetConnector(self, position, name = None):
# if a name is given
if name is not None:
# Test input and output connector if they exists
#if self.Input and name == self.Input.GetName():
# return self.Input
if self.Output and name == self.Output.GetName():
return self.Output
connectors = []
# Test input connector if it exists
if self.Input:
connectors.append(self.Input)
# Test output connector if it exists
if self.Output:
connectors.append(self.Output)
return self.FindNearestConnector(position, connectors)
# Returns all the block connectors
def GetConnectors(self):
connectors = {"inputs": [], "outputs": []}
if self.Input:
connectors["inputs"].append(self.Input)
if self.Output:
connectors["outputs"].append(self.Output)
return connectors
# Changes the negated property of the variable connector if handled
def SetConnectorNegated(self, negated):
handle_type, handle = self.Handle
if handle_type == HANDLE_CONNECTOR:
handle.SetNegated(negated)
self.RefreshModel(False)
# Changes the variable type
def SetType(self, type, value_type):
if type != self.Type:
self.Type = type
# Create an input or output connector according to variable type
if self.Type != INPUT:
if self.Input is None:
self.Input = Connector(self, "", value_type, wx.Point(0, 0), WEST, onlyone = True)
elif self.Input:
self.Input.UnConnect(delete = True)
self.Input = None
if self.Type != OUTPUT:
if self.Output is None:
self.Output = Connector(self, "", value_type, wx.Point(0, 0), EAST)
elif self.Output:
self.Output.UnConnect(delete = True)
self.Output = None
self.RefreshConnectors()
self.RefreshBoundingBox()
elif value_type != self.ValueType:
if self.Input:
self.Input.SetType(value_type)
if self.Output:
self.Output.SetType(value_type)
# Returns the variable type
def GetType(self):
return self.Type
# Returns the variable value type
def GetValueType(self):
return self.ValueType
# Changes the variable name
def SetName(self, name):
self.Name = name
self.RefreshNameSize()
# Returns the variable name
def GetName(self):
return self.Name
# Changes the execution order
def SetExecutionOrder(self, executionOrder):
self.ExecutionOrder = executionOrder
self.RefreshExecutionOrderSize()
# Returs the execution order
def GetExecutionOrder(self):
return self.ExecutionOrder
# Returns the variable minimum size
def GetMinSize(self):
return self.NameSize[0] + 10, self.NameSize[1] + 10
# Set size of the variable to the minimum size
def SetBestSize(self, scaling):
if self.Type == INPUT:
return Graphic_Element.SetBestSize(self, scaling, x_factor=1.)
elif self.Type == OUTPUT:
return Graphic_Element.SetBestSize(self, scaling, x_factor=0.)
else:
return Graphic_Element.SetBestSize(self, scaling)
# Method called when a LeftDClick event have been generated
def OnLeftDClick(self, event, dc, scaling):
if event.ControlDown():
# Change variable type
types = [INPUT, OUTPUT, INOUT]
self.Parent.ChangeVariableType(self,
types[(types.index(self.Type) + 1) % len(types)])
else:
# Edit the variable properties
self.Parent.EditVariableContent(self)
# Method called when a RightUp event have been generated
def OnRightUp(self, event, dc, scaling):
self.Parent.PopupVariableMenu()
# Refreshes the variable model
def RefreshModel(self, move=True):
self.Parent.RefreshVariableModel(self)
# If variable has moved and variable is not of type OUTPUT, refresh the model
# of wires connected to output connector
if move and self.Type != OUTPUT:
if self.Output:
self.Output.RefreshWires()
# Adds an highlight to the variable
def AddHighlight(self, infos, start, end, highlight_type):
if infos[0] == "expression" and start[0] == 0 and end[0] == 0:
AddHighlight(self.Highlights, (start, end, highlight_type))
# Removes an highlight from the variable
def RemoveHighlight(self, infos, start, end, highlight_type):
if infos[0] == "expression":
RemoveHighlight(self.Highlights, (start, end, highlight_type))
# Removes all the highlights of one particular type from the variable
def ClearHighlight(self, highlight_type=None):
ClearHighlights(self.Highlights, highlight_type)
# Draws variable
def Draw(self, dc):
Graphic_Element.Draw(self, dc)
dc.SetPen(MiterPen(wx.BLACK))
dc.SetBrush(wx.WHITE_BRUSH)
if getattr(dc, "printing", False):
name_size = dc.GetTextExtent(self.Name)
executionorder_size = dc.GetTextExtent(str(self.ExecutionOrder))
else:
name_size = self.NameSize
executionorder_size = self.ExecutionOrderSize
text_pos = (self.Pos.x + (self.Size[0] - name_size[0]) / 2,
self.Pos.y + (self.Size[1] - name_size[1]) / 2)
# Draw a rectangle with the variable size
dc.DrawRectangle(self.Pos.x, self.Pos.y, self.Size[0] + 1, self.Size[1] + 1)
# Draw variable name
dc.DrawText(self.Name, text_pos[0], text_pos[1])
# Draw connectors
if self.Input:
self.Input.Draw(dc)
if self.Output:
self.Output.Draw(dc)
if self.ExecutionOrder != 0:
# Draw variable execution order
dc.DrawText(str(self.ExecutionOrder), self.Pos.x + self.Size[0] - executionorder_size[0],
self.Pos.y + self.Size[1] + 2)
if not getattr(dc, "printing", False):
DrawHighlightedText(dc, self.Name, self.Highlights, text_pos[0], text_pos[1])
#-------------------------------------------------------------------------------
# Function Block Diagram Connector
#-------------------------------------------------------------------------------
"""
Class that implements the graphic representation of a connection
"""
class FBD_Connector(Graphic_Element):
# Create a new connection
def __init__(self, parent, type, name, id = None):
Graphic_Element.__init__(self, parent)
self.Type = type
self.Id = id
self.SetName(name)
self.Pos = wx.Point(0, 0)
self.Size = wx.Size(0, 0)
self.Highlights = []
# Create an input or output connector according to connection type
if self.Type == CONNECTOR:
self.Connector = Connector(self, "", "ANY", wx.Point(0, 0), WEST, onlyone = True)
else:
self.Connector = Connector(self, "", "ANY", wx.Point(0, 0), EAST)
self.RefreshConnectors()
self.RefreshNameSize()
def Flush(self):
if self.Connector:
self.Connector.Flush()
self.Connector = None
# Returns the RedrawRect
def GetRedrawRect(self, movex = 0, movey = 0):
rect = Graphic_Element.GetRedrawRect(self, movex, movey)
if movex != 0 or movey != 0:
if self.Connector and self.Connector.IsConnected():
rect = rect.Union(self.Connector.GetConnectedRedrawRect(movex, movey))
return rect
# Make a clone of this FBD_Connector
def Clone(self, parent, id = None, pos = None):
connection = FBD_Connector(parent, self.Type, self.Name, id)
connection.SetSize(self.Size[0], self.Size[1])
if pos is not None:
connection.SetPosition(pos.x, pos.y)
else:
connection.SetPosition(self.Pos.x, self.Pos.y)
connection.Connector = self.Connector.Clone(connection)
return connection
def GetConnectorTranslation(self, element):
return {self.Connector : element.Connector}
# Unconnect connector
def Clean(self):
if self.Connector:
self.Connector.UnConnect(delete = True)
# Delete this connection by calling the appropriate method
def Delete(self):
self.Parent.DeleteConnection(self)
# Refresh the size of text for name
def RefreshNameSize(self):
self.NameSize = self.Parent.GetTextExtent(self.Name)
# Refresh the connection bounding box
def RefreshBoundingBox(self):
if self.Type == CONNECTOR:
bbx_x = self.Pos.x - CONNECTOR_SIZE
else:
bbx_x = self.Pos.x
bbx_width = self.Size[0] + CONNECTOR_SIZE
self.BoundingBox = wx.Rect(bbx_x, self.Pos.y, bbx_width, self.Size[1])
# Refresh the position of the connection connector
def RefreshConnectors(self):
scaling = self.Parent.GetScaling()
if scaling is not None:
position = round_scaling(self.Pos.y + self.Size[1] / 2, scaling[1]) - self.Pos.y
else:
position = self.Size[1] / 2
if self.Type == CONNECTOR:
self.Connector.SetPosition(wx.Point(0, position))
else:
self.Connector.SetPosition(wx.Point(self.Size[0], position))
self.RefreshConnected()
# Refresh the position of wires connected to connector
def RefreshConnected(self, exclude = []):
if self.Connector:
self.Connector.MoveConnected(exclude)
# Test if point given is on the connection connector
def TestConnector(self, pt, direction = None, exclude=True):
if self.Connector and self.Connector.TestPoint(pt, direction, exclude):
return self.Connector
return None
# Returns the connection connector
def GetConnector(self, position = None, name = None):
return self.Connector
# Returns all the block connectors
def GetConnectors(self):
connectors = {"inputs": [], "outputs": []}
if self.Type == CONNECTOR:
connectors["inputs"].append(self.Connector)
else:
connectors["outputs"].append(self.Connector)
return connectors
def SpreadCurrent(self):
if self.Type == CONNECTOR:
continuations = self.Parent.GetContinuationByName(self.Name)
if continuations is not None:
value = self.Connector.ReceivingCurrent()
for cont in continuations:
cont.Connector.SpreadCurrent(value)
# Changes the variable type
def SetType(self, type):
if type != self.Type:
self.Type = type
self.Clean()
# Create an input or output connector according to connection type
if self.Type == CONNECTOR:
self.Connector = Connector(self, "", "ANY", wx.Point(0, 0), WEST, onlyone = True)
else:
self.Connector = Connector(self, "", "ANY", wx.Point(0, 0), EAST)
self.RefreshConnectors()
self.RefreshBoundingBox()
# Returns the connection type
def GetType(self):
return self.Type
def GetConnectionResultType(self, connector, connectortype):
if self.Type == CONTINUATION:
connector = self.Parent.GetConnectorByName(self.Name)
if connector is not None:
return connector.Connector.GetConnectedType()
return connectortype
# Changes the connection name
def SetName(self, name):
self.Name = name
self.RefreshNameSize()
# Returns the connection name
def GetName(self):
return self.Name
# Set size of the variable to the minimum size
def SetBestSize(self, scaling):
if self.Type == CONTINUATION:
return Graphic_Element.SetBestSize(self, scaling, x_factor=1.)
else:
return Graphic_Element.SetBestSize(self, scaling, x_factor=0.)
# Returns the connection minimum size
def GetMinSize(self):
text_width, text_height = self.NameSize
if text_height % 2 == 1:
text_height += 1
return text_width + text_height + 20, text_height + 10
# Method called when a LeftDClick event have been generated
def OnLeftDClick(self, event, dc, scaling):
if event.ControlDown():
# Change connection type
if self.Type == CONNECTOR:
self.Parent.ChangeConnectionType(self, CONTINUATION)
else:
self.Parent.ChangeConnectionType(self, CONNECTOR)
else:
# Edit the connection properties
self.Parent.EditConnectionContent(self)
# Method called when a RightUp event have been generated
def OnRightUp(self, event, dc, scaling):
# Popup the default menu
self.Parent.PopupConnectionMenu()
# Refreshes the connection model
def RefreshModel(self, move=True):
self.Parent.RefreshConnectionModel(self)
# If connection has moved and connection is of type CONTINUATION, refresh
# the model of wires connected to connector
if move and self.Type == CONTINUATION:
if self.Connector:
self.Connector.RefreshWires()
# Adds an highlight to the connection
def AddHighlight(self, infos, start, end, highlight_type):
if infos[0] == "name" and start[0] == 0 and end[0] == 0:
AddHighlight(self.Highlights, (start, end, highlight_type))
# Removes an highlight from the connection
def RemoveHighlight(self, infos, start, end, highlight_type):
if infos[0] == "name":
RemoveHighlight(self.Highlights, (start, end, highlight_type))
# Removes all the highlights of one particular type from the connection
def ClearHighlight(self, highlight_type=None):
ClearHighlights(self.Highlights, highlight_type)
# Draws connection
def Draw(self, dc):
Graphic_Element.Draw(self, dc)
dc.SetPen(MiterPen(wx.BLACK))
dc.SetBrush(wx.WHITE_BRUSH)
if getattr(dc, "printing", False):
name_size = dc.GetTextExtent(self.Name)
else:
name_size = self.NameSize
# Draw a rectangle with the connection size with arrows inside
dc.DrawRectangle(self.Pos.x, self.Pos.y, self.Size[0] + 1, self.Size[1] + 1)
arrowsize = min(self.Size[1] / 2, (self.Size[0] - name_size[0] - 10) / 2)
dc.DrawLine(self.Pos.x, self.Pos.y, self.Pos.x + arrowsize,
self.Pos.y + self.Size[1] / 2)
dc.DrawLine(self.Pos.x + arrowsize, self.Pos.y + self.Size[1] / 2,
self.Pos.x, self.Pos.y + self.Size[1])
dc.DrawLine(self.Pos.x + self.Size[0] - arrowsize, self.Pos.y,
self.Pos.x + self.Size[0], self.Pos.y + self.Size[1] / 2)
dc.DrawLine(self.Pos.x + self.Size[0], self.Pos.y + self.Size[1] / 2,
self.Pos.x + self.Size[0] - arrowsize, self.Pos.y + self.Size[1])
# Draw connection name
text_pos = (self.Pos.x + (self.Size[0] - name_size[0]) / 2,
self.Pos.y + (self.Size[1] - name_size[1]) / 2)
dc.DrawText(self.Name, text_pos[0], text_pos[1])
# Draw connector
if self.Connector:
self.Connector.Draw(dc)
if not getattr(dc, "printing", False):
DrawHighlightedText(dc, self.Name, self.Highlights, text_pos[0], text_pos[1])