--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/dialogs/BlockPreviewDialog.py Mon Jun 10 00:55:57 2013 +0200
@@ -0,0 +1,123 @@
+#!/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) 2013: 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 plcopen.structures import TestIdentifier, IEC_KEYWORDS
+from graphics.GraphicCommons import FREEDRAWING_MODE
+
+#-------------------------------------------------------------------------------
+# Dialog with preview for graphic block
+#-------------------------------------------------------------------------------
+
+"""
+Class that implements a generic dialog containing a preview panel for displaying
+graphic created by dialog
+"""
+
+class BlockPreviewDialog(wx.Dialog):
+
+ def __init__(self, parent, controller, tagname, size, title):
+ wx.Dialog.__init__(self, parent, size=size, title=title)
+
+ self.Controller = controller
+ self.TagName = tagname
+
+ self.PreviewLabel = wx.StaticText(self, label=_('Preview:'))
+
+ self.Preview = wx.Panel(self, style=wx.SIMPLE_BORDER)
+ self.Preview.SetBackgroundColour(wx.WHITE)
+ 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)
+
+ self.ButtonSizer = self.CreateButtonSizer(wx.OK|wx.CANCEL|wx.CENTRE)
+ self.Bind(wx.EVT_BUTTON, self.OnOK,
+ self.ButtonSizer.GetAffirmativeButton())
+
+ self.Block = None
+ self.DefaultBlockName = None
+ self.MinBlockSize = None
+
+ def __del__(self):
+ self.Controller = None
+
+ def SetMinBlockSize(self, size):
+ self.MinBlockSize = size
+
+ def SetPreviewFont(self, font):
+ self.Preview.SetFont(font)
+
+ def TestBlockName(self, block_name):
+ format = None
+ uppercase_block_name = block_name.upper()
+ if not TestIdentifier(block_name):
+ format = _("\"%s\" is not a valid identifier!")
+ elif uppercase_block_name in IEC_KEYWORDS:
+ format = _("\"%s\" is a keyword. It can't be used!")
+ elif uppercase_block_name in self.Controller.GetProjectPouNames():
+ format = _("\"%s\" pou already exists!")
+ elif (self.DefaultBlockName.upper() != uppercase_block_name and
+ uppercase_block_name in self.Controller.GetEditedElementVariables(
+ self.TagName)):
+ format = _("\"%s\" element for this pou already exists!")
+
+ if format is not None:
+ self.ShowErrorMessage(format % block_name)
+ return False
+
+ return True
+
+ def ShowErrorMessage(self, message):
+ dialog = wx.MessageDialog(self, message,
+ _("Error"),
+ wx.OK|wx.ICON_ERROR)
+ dialog.ShowModal()
+ dialog.Destroy()
+
+ def OnOK(self, event):
+ self.EndModal(wx.ID_OK)
+
+ def RefreshPreview(self):
+ dc = wx.ClientDC(self.Preview)
+ dc.SetFont(self.Preview.GetFont())
+ dc.Clear()
+
+ if self.Block is not None:
+ min_width, min_height = self.Block.GetMinSize()
+ width = max(self.MinBlockSize[0], min_width)
+ height = max(self.MinBlockSize[1], min_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)
+
+ def OnPaint(self, event):
+ self.RefreshPreview()
+ event.Skip()
+
\ No newline at end of file