dialogs/FBDBlockDialog.py
changeset 814 5743cbdff669
child 1230 5a4c5724788e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dialogs/FBDBlockDialog.py	Fri Sep 07 16:45:55 2012 +0200
@@ -0,0 +1,275 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+#This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor
+#based on the plcopen standard. 
+#
+#Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
+#
+#See COPYING file for copyrights details.
+#
+#This library is free software; you can redistribute it and/or
+#modify it under the terms of the GNU General Public
+#License as published by the Free Software Foundation; either
+#version 2.1 of the License, or (at your option) any later version.
+#
+#This library is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#General Public License for more details.
+#
+#You should have received a copy of the GNU General Public
+#License along with this library; if not, write to the Free Software
+#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+import wx
+
+from graphics import *
+from controls.LibraryPanel import LibraryPanel
+
+#-------------------------------------------------------------------------------
+#                          Create New Block Dialog
+#-------------------------------------------------------------------------------
+
+class FBDBlockDialog(wx.Dialog):
+    
+    def __init__(self, parent, controller):
+        wx.Dialog.__init__(self, parent,
+              size=wx.Size(600, 450), title=_('Block Properties'))
+        
+        main_sizer = wx.FlexGridSizer(cols=1, hgap=0, rows=4, vgap=10)
+        main_sizer.AddGrowableCol(0)
+        main_sizer.AddGrowableRow(0)
+        
+        column_sizer = wx.BoxSizer(wx.HORIZONTAL)
+        main_sizer.AddSizer(column_sizer, border=20, 
+              flag=wx.GROW|wx.TOP|wx.LEFT|wx.RIGHT)
+        
+        type_staticbox = wx.StaticBox(self, label=_('Type:'))
+        left_staticboxsizer = wx.StaticBoxSizer(type_staticbox, wx.VERTICAL)
+        column_sizer.AddSizer(left_staticboxsizer, 1, border=5, 
+              flag=wx.GROW|wx.RIGHT)
+        
+        self.LibraryPanel = LibraryPanel(self)
+        self.LibraryPanel.SetController(controller)
+        setattr(self.LibraryPanel, "_OnTreeItemSelected", 
+              self.OnLibraryTreeItemSelected)
+        left_staticboxsizer.AddWindow(self.LibraryPanel, 1, border=5, 
+              flag=wx.GROW|wx.TOP)
+        
+        right_gridsizer = wx.FlexGridSizer(cols=1, hgap=0, rows=3, vgap=5)
+        right_gridsizer.AddGrowableCol(0)
+        right_gridsizer.AddGrowableRow(2)
+        column_sizer.AddSizer(right_gridsizer, 1, border=5, 
+              flag=wx.GROW|wx.LEFT)
+        
+        top_right_gridsizer = wx.FlexGridSizer(cols=2, hgap=0, rows=4, vgap=5)
+        top_right_gridsizer.AddGrowableCol(1)
+        right_gridsizer.AddSizer(top_right_gridsizer, flag=wx.GROW)
+        
+        name_label = wx.StaticText(self, label=_('Name:'))
+        top_right_gridsizer.AddWindow(name_label, 
+              flag=wx.ALIGN_CENTER_VERTICAL)
+        
+        self.BlockName = wx.TextCtrl(self)
+        self.Bind(wx.EVT_TEXT, self.OnNameChanged, self.BlockName)
+        top_right_gridsizer.AddWindow(self.BlockName, flag=wx.GROW)
+        
+        inputs_label = wx.StaticText(self, label=_('Inputs:'))
+        top_right_gridsizer.AddWindow(inputs_label, 
+              flag=wx.ALIGN_CENTER_VERTICAL)
+        
+        self.Inputs = wx.SpinCtrl(self, min=2, max=20,
+              style=wx.SP_ARROW_KEYS)
+        self.Bind(wx.EVT_SPINCTRL, self.OnInputsChanged, self.Inputs)
+        top_right_gridsizer.AddWindow(self.Inputs, flag=wx.GROW)
+        
+        execution_order_label = wx.StaticText(self, label=_('Execution Order:'))
+        top_right_gridsizer.AddWindow(execution_order_label, 
+              flag=wx.ALIGN_CENTER_VERTICAL)
+        
+        self.ExecutionOrder = wx.SpinCtrl(self, min=0, style=wx.SP_ARROW_KEYS)
+        self.Bind(wx.EVT_SPINCTRL, self.OnExecutionOrderChanged, self.ExecutionOrder)
+        top_right_gridsizer.AddWindow(self.ExecutionOrder, flag=wx.GROW)
+                
+        execution_control_label = wx.StaticText(self, label=_('Execution Control:'))
+        top_right_gridsizer.AddWindow(execution_control_label, 
+              flag=wx.ALIGN_CENTER_VERTICAL)
+        
+        self.ExecutionControl = wx.CheckBox(self)
+        self.Bind(wx.EVT_CHECKBOX, self.OnExecutionOrderChanged, self.ExecutionControl)
+        top_right_gridsizer.AddWindow(self.ExecutionControl, flag=wx.GROW)
+        
+        preview_label = wx.StaticText(self, label=_('Preview:'))
+        right_gridsizer.AddWindow(preview_label, flag=wx.GROW)
+
+        self.Preview = wx.Panel(self,
+              style=wx.TAB_TRAVERSAL|wx.SIMPLE_BORDER)
+        self.Preview.SetBackgroundColour(wx.Colour(255,255,255))
+        setattr(self.Preview, "GetDrawingMode", lambda:FREEDRAWING_MODE)
+        setattr(self.Preview, "GetScaling", lambda:None)
+        setattr(self.Preview, "GetBlockType", controller.GetBlockType)
+        setattr(self.Preview, "IsOfType", controller.IsOfType)
+        self.Preview.Bind(wx.EVT_PAINT, self.OnPaint)
+        right_gridsizer.AddWindow(self.Preview, flag=wx.GROW)
+        
+        button_sizer = self.CreateButtonSizer(wx.OK|wx.CANCEL|wx.CENTRE)
+        self.Bind(wx.EVT_BUTTON, self.OnOK, button_sizer.GetAffirmativeButton())
+        main_sizer.AddSizer(button_sizer, border=20, 
+              flag=wx.ALIGN_RIGHT|wx.BOTTOM|wx.LEFT|wx.RIGHT)
+        
+        self.SetSizer(main_sizer)
+        
+        self.Controller = controller
+        
+        self.BlockName.SetValue("")
+        self.BlockName.Enable(False)
+        self.Inputs.Enable(False)
+        self.Block = None
+        self.MinBlockSize = None
+        self.First = True
+        
+        self.PouNames = []
+        self.PouElementNames = []
+        
+        self.LibraryPanel.SetFocus()
+    
+    def __del__(self):
+        self.Controller = None
+    
+    def SetBlockList(self, blocklist):
+        self.LibraryPanel.SetBlockList(blocklist)
+    
+    def SetPreviewFont(self, font):
+        self.Preview.SetFont(font)
+    
+    def OnOK(self, event):
+        message = None
+        selected = self.LibraryPanel.GetSelectedBlock()
+        block_name = self.BlockName.GetValue()
+        name_enabled = self.BlockName.IsEnabled()
+        if selected is None:
+            message = _("Form isn't complete. Valid block type must be selected!")
+        elif name_enabled and block_name == "":
+            message = _("Form isn't complete. Name must be filled!")
+        elif name_enabled and not TestIdentifier(block_name):
+            message = _("\"%s\" is not a valid identifier!") % block_name
+        elif name_enabled and block_name.upper() in IEC_KEYWORDS:
+            message = _("\"%s\" is a keyword. It can't be used!") % block_name
+        elif name_enabled and block_name.upper() in self.PouNames:
+            message = _("\"%s\" pou already exists!") % block_name
+        elif name_enabled and block_name.upper() in self.PouElementNames:
+            message = _("\"%s\" element for this pou already exists!") % block_name
+        if message is not None:
+            dialog = wx.MessageDialog(self, message, _("Error"), wx.OK|wx.ICON_ERROR)
+            dialog.ShowModal()
+            dialog.Destroy()
+        else:
+            self.EndModal(wx.ID_OK)
+
+    def SetMinBlockSize(self, size):
+        self.MinBlockSize = size
+
+    def SetPouNames(self, pou_names):
+        self.PouNames = [pou_name.upper() for pou_name in pou_names]
+        
+    def SetPouElementNames(self, element_names):
+        self.PouElementNames = [element_name.upper() for element_name in element_names]
+        
+    def SetValues(self, values):
+        blocktype = values.get("type", None)
+        if blocktype is not None:
+            self.LibraryPanel.SelectTreeItem(blocktype, values.get("inputs", None))
+        for name, value in values.items():
+            if name == "name":
+                self.BlockName.SetValue(value)
+            elif name == "extension":
+                self.Inputs.SetValue(value)
+            elif name == "executionOrder":
+                self.ExecutionOrder.SetValue(value)
+            elif name == "executionControl":
+                   self.ExecutionControl.SetValue(value)
+        self.RefreshPreview()
+
+    def GetValues(self):
+        values = self.LibraryPanel.GetSelectedBlock()
+        if self.BlockName.IsEnabled() and self.BlockName.GetValue() != "":
+            values["name"] = self.BlockName.GetValue()
+        values["width"], values["height"] = self.Block.GetSize()
+        values["extension"] = self.Inputs.GetValue()
+        values["executionOrder"] = self.ExecutionOrder.GetValue()
+        values["executionControl"] = self.ExecutionControl.GetValue()
+        return values
+
+    def OnLibraryTreeItemSelected(self, event):
+        values = self.LibraryPanel.GetSelectedBlock()
+        if values is not None:
+            blocktype = self.Controller.GetBlockType(values["type"], values["inputs"])
+        else:
+            blocktype = None
+        if blocktype is not None:
+            self.Inputs.SetValue(len(blocktype["inputs"]))
+            self.Inputs.Enable(blocktype["extensible"])
+            self.BlockName.Enable(blocktype["type"] != "function")
+            wx.CallAfter(self.RefreshPreview)
+        else:
+            self.BlockName.Enable(False)
+            self.Inputs.Enable(False)
+            self.Inputs.SetValue(2)
+            wx.CallAfter(self.ErasePreview)
+    
+    def OnNameChanged(self, event):
+        if self.BlockName.IsEnabled():
+            self.RefreshPreview()
+        event.Skip()
+    
+    def OnInputsChanged(self, event):
+        if self.Inputs.IsEnabled():
+            self.RefreshPreview()
+        event.Skip()
+    
+    def OnExecutionOrderChanged(self, event):
+        self.RefreshPreview()
+        event.Skip()
+    
+    def OnExecutionControlChanged(self, event):
+        self.RefreshPreview()
+        event.Skip()
+    
+    def ErasePreview(self):
+        dc = wx.ClientDC(self.Preview)
+        dc.Clear()
+        self.Block = None
+        
+    def RefreshPreview(self):
+        dc = wx.ClientDC(self.Preview)
+        dc.SetFont(self.Preview.GetFont())
+        dc.Clear()
+        values = self.LibraryPanel.GetSelectedBlock()
+        if values is not None:
+            if self.BlockName.IsEnabled():
+                blockname = self.BlockName.GetValue()
+            else:
+                blockname = ""
+            self.Block = FBD_Block(self.Preview, values["type"], 
+                    blockname, 
+                    extension = self.Inputs.GetValue(), 
+                    inputs = values["inputs"], 
+                    executionControl = self.ExecutionControl.GetValue(), 
+                    executionOrder = self.ExecutionOrder.GetValue())
+            width, height = self.MinBlockSize
+            min_width, min_height = self.Block.GetMinSize()
+            width, height = max(min_width, width), max(min_height, height)
+            self.Block.SetSize(width, height)
+            clientsize = self.Preview.GetClientSize()
+            x = (clientsize.width - width) / 2
+            y = (clientsize.height - height) / 2
+            self.Block.SetPosition(x, y)
+            self.Block.Draw(dc)
+        else:
+            self.Block = None        
+
+    def OnPaint(self, event):
+        if self.Block is not None:
+            self.RefreshPreview()
+        event.Skip()