--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/controls/LibraryPanel.py Fri Sep 07 16:45:55 2012 +0200
@@ -0,0 +1,295 @@
+#!/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
+
+#-------------------------------------------------------------------------------
+# Helpers
+#-------------------------------------------------------------------------------
+
+[CATEGORY, BLOCK] = range(2)
+
+#-------------------------------------------------------------------------------
+# Library Panel
+#-------------------------------------------------------------------------------
+
+class LibraryPanel(wx.Panel):
+
+ def __init__(self, parent, enable_drag=False):
+ wx.Panel.__init__(self, parent, style=wx.TAB_TRAVERSAL)
+
+ main_sizer = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=0)
+ main_sizer.AddGrowableCol(0)
+ main_sizer.AddGrowableRow(1)
+
+ self.SearchCtrl = wx.SearchCtrl(self)
+ self.SearchCtrl.ShowSearchButton(True)
+ self.Bind(wx.EVT_TEXT, self.OnSearchCtrlChanged, self.SearchCtrl)
+ self.Bind(wx.EVT_SEARCHCTRL_SEARCH_BTN,
+ self.OnSearchButtonClick, self.SearchCtrl)
+ search_textctrl = self.SearchCtrl.GetChildren()[0]
+ search_textctrl.Bind(wx.EVT_CHAR, self.OnKeyDown)
+ main_sizer.AddWindow(self.SearchCtrl, flag=wx.GROW)
+
+ splitter_window = wx.SplitterWindow(self)
+ splitter_window.SetSashGravity(1.0)
+ main_sizer.AddWindow(splitter_window, flag=wx.GROW)
+
+ self.Tree = wx.TreeCtrl(splitter_window,
+ size=wx.Size(0, 0),
+ style=wx.TR_HAS_BUTTONS|
+ wx.TR_SINGLE|
+ wx.SUNKEN_BORDER|
+ wx.TR_HIDE_ROOT|
+ wx.TR_LINES_AT_ROOT)
+ self.Bind(wx.EVT_TREE_SEL_CHANGED, self.OnTreeItemSelected, self.Tree)
+ self.Tree.Bind(wx.EVT_CHAR, self.OnKeyDown)
+ if enable_drag:
+ self.Bind(wx.EVT_TREE_BEGIN_DRAG, self.OnTreeBeginDrag, self.Tree)
+
+ self.Comment = wx.TextCtrl(splitter_window, size=wx.Size(0, 80),
+ style=wx.TE_READONLY|wx.TE_MULTILINE)
+
+ splitter_window.SplitHorizontally(self.Tree, self.Comment, -80)
+
+ self.SetSizer(main_sizer)
+
+ self.Controller = None
+
+ self.BlockList = None
+
+ def __del__(self):
+ self.Controller = None
+
+ def SetController(self, controller):
+ self.Controller = controller
+
+ def SetBlockList(self, blocklist):
+ self.BlockList = blocklist
+ self.RefreshTree()
+
+ def SetFocus(self):
+ self.SearchCtrl.SetFocus()
+
+ def ResetTree(self):
+ self.SearchCtrl.SetValue("")
+ self.Tree.DeleteAllItems()
+ self.Comment.SetValue("")
+
+ def RefreshTree(self):
+ if self.Controller is not None:
+ to_delete = []
+ selected_name = None
+ selected = self.Tree.GetSelection()
+ if selected.IsOk():
+ selected_pydata = self.Tree.GetPyData(selected)
+ if selected_pydata is not None and selected_pydata["type"] != CATEGORY:
+ selected_name = self.Tree.GetItemText(selected)
+ if self.BlockList is not None:
+ blocktypes = self.BlockList
+ else:
+ blocktypes = self.Controller.GetBlockTypes()
+ root = self.Tree.GetRootItem()
+ if not root.IsOk():
+ root = self.Tree.AddRoot("")
+ category_item, root_cookie = self.Tree.GetFirstChild(root)
+ for category in blocktypes:
+ category_name = category["name"]
+ if not category_item.IsOk():
+ category_item = self.Tree.AppendItem(root, _(category_name))
+ if wx.Platform != '__WXMSW__':
+ category_item, root_cookie = self.Tree.GetNextChild(root, root_cookie)
+ else:
+ self.Tree.SetItemText(category_item, _(category_name))
+ self.Tree.SetPyData(category_item, {"type" : CATEGORY})
+ blocktype_item, category_cookie = self.Tree.GetFirstChild(category_item)
+ for blocktype in category["list"]:
+ if not blocktype_item.IsOk():
+ blocktype_item = self.Tree.AppendItem(category_item, blocktype["name"])
+ if wx.Platform != '__WXMSW__':
+ blocktype_item, category_cookie = self.Tree.GetNextChild(category_item, category_cookie)
+ else:
+ self.Tree.SetItemText(blocktype_item, blocktype["name"])
+ block_data = {"type" : BLOCK,
+ "block_type" : blocktype["type"],
+ "inputs" : tuple([type for name, type, modifier in blocktype["inputs"]]),
+ "extension" : None}
+ if blocktype["extensible"]:
+ block_data["extension"] = len(blocktype["inputs"])
+ self.Tree.SetPyData(blocktype_item, block_data)
+ if selected_name == blocktype["name"]:
+ self.Tree.SelectItem(blocktype_item)
+ comment = blocktype["comment"]
+ self.Comment.SetValue(_(comment) + blocktype.get("usage", ""))
+ blocktype_item, category_cookie = self.Tree.GetNextChild(category_item, category_cookie)
+ while blocktype_item.IsOk():
+ to_delete.append(blocktype_item)
+ blocktype_item, category_cookie = self.Tree.GetNextChild(category_item, category_cookie)
+ category_item, root_cookie = self.Tree.GetNextChild(root, root_cookie)
+ while category_item.IsOk():
+ to_delete.append(category_item)
+ category_item, root_cookie = self.Tree.GetNextChild(root, root_cookie)
+ for item in to_delete:
+ self.Tree.Delete(item)
+
+ def GetSelectedBlock(self):
+ selected = self.Tree.GetSelection()
+ if (selected.IsOk() and
+ self.Tree.GetItemParent(selected) != self.Tree.GetRootItem() and
+ selected != self.Tree.GetRootItem()):
+ selected_data = self.Tree.GetPyData(selected)
+ return {"type": self.Tree.GetItemText(selected),
+ "inputs": selected_data["inputs"]}
+ return None
+
+ def SelectTreeItem(self, name, inputs):
+ item = self.FindTreeItem(self.Tree.GetRootItem(), name, inputs)
+ if item is not None and item.IsOk():
+ self.Tree.SelectItem(item)
+ self.Tree.EnsureVisible(item)
+
+ def FindTreeItem(self, root, name, inputs = None):
+ if root.IsOk():
+ pydata = self.Tree.GetPyData(root)
+ if pydata is not None:
+ type_inputs = pydata.get("inputs", None)
+ type_extension = pydata.get("extension", None)
+ if inputs is not None and type_inputs is not None:
+ if type_extension is not None:
+ same_inputs = type_inputs == inputs[:type_extension]
+ else:
+ same_inputs = type_inputs == inputs
+ else:
+ same_inputs = True
+ if pydata is not None and self.Tree.GetItemText(root) == name and same_inputs:
+ return root
+ else:
+ if wx.VERSION < (2, 6, 0):
+ item, root_cookie = self.Tree.GetFirstChild(root, 0)
+ else:
+ item, root_cookie = self.Tree.GetFirstChild(root)
+ while item.IsOk():
+ result = self.FindTreeItem(item, name, inputs)
+ if result:
+ return result
+ item, root_cookie = self.Tree.GetNextChild(root, root_cookie)
+ return None
+
+ def SearchInTree(self, value, mode="first"):
+ root = self.Tree.GetRootItem()
+ if not root.IsOk():
+ return False
+
+ if mode == "first":
+ item, item_cookie = self.Tree.GetFirstChild(root)
+ selected = None
+ else:
+ item = self.Tree.GetSelection()
+ selected = item
+ if not item.IsOk():
+ item, item_cookie = self.Tree.GetFirstChild(root)
+ while item.IsOk():
+ item_pydata = self.Tree.GetPyData(item)
+ if item_pydata["type"] == CATEGORY:
+ if mode == "previous":
+ child = self.Tree.GetLastChild(item)
+ else:
+ child, child_cookie = self.Tree.GetFirstChild(item)
+ if child.IsOk():
+ item = child
+ elif mode == "previous":
+ item = self.Tree.GetPrevSibling(item)
+ else:
+ item = self.Tree.GetNextSibling(item)
+ else:
+ name = self.Tree.GetItemText(item)
+ if name.upper().startswith(value.upper()) and item != selected:
+ child, child_cookie = self.Tree.GetFirstChild(root)
+ while child.IsOk():
+ self.Tree.CollapseAllChildren(child)
+ child, child_cookie = self.Tree.GetNextChild(root, child_cookie)
+ self.Tree.SelectItem(item)
+ self.Tree.EnsureVisible(item)
+ return True
+
+ elif mode == "previous":
+ previous = self.Tree.GetPrevSibling(item)
+ if previous.IsOk():
+ item = previous
+ else:
+ parent = self.Tree.GetItemParent(item)
+ item = self.Tree.GetPrevSibling(parent)
+
+ else:
+ next = self.Tree.GetNextSibling(item)
+ if next.IsOk():
+ item = next
+ else:
+ parent = self.Tree.GetItemParent(item)
+ item = self.Tree.GetNextSibling(parent)
+ return False
+
+ def OnSearchCtrlChanged(self, event):
+ self.SearchInTree(self.SearchCtrl.GetValue())
+ event.Skip()
+
+ def OnSearchButtonClick(self, event):
+ self.SearchInTree(self.SearchCtrl.GetValue(), "next")
+ event.Skip()
+
+ def OnTreeItemSelected(self, event):
+ selected = event.GetItem()
+ pydata = self.Tree.GetPyData(selected)
+ if pydata is not None and pydata["type"] != CATEGORY:
+ blocktype = self.Controller.GetBlockType(self.Tree.GetItemText(selected), pydata["inputs"])
+ if blocktype:
+ comment = blocktype["comment"]
+ self.Comment.SetValue(_(comment) + blocktype.get("usage", ""))
+ else:
+ self.Comment.SetValue("")
+ else:
+ self.Comment.SetValue("")
+ if getattr(self, "_OnTreeItemSelected", None) is not None:
+ self._OnTreeItemSelected(event)
+ event.Skip()
+
+ def OnTreeBeginDrag(self, event):
+ selected = event.GetItem()
+ pydata = self.Tree.GetPyData(selected)
+ if pydata is not None and pydata["type"] == BLOCK:
+ data = wx.TextDataObject(str((self.Tree.GetItemText(selected),
+ pydata["block_type"], "", pydata["inputs"])))
+ dragSource = wx.DropSource(self.Tree)
+ dragSource.SetData(data)
+ dragSource.DoDragDrop()
+
+ def OnKeyDown(self, event):
+ keycode = event.GetKeyCode()
+ search_value = self.SearchCtrl.GetValue()
+ if keycode == wx.WXK_UP and search_value != "":
+ self.SearchInTree(search_value, "previous")
+ elif keycode == wx.WXK_DOWN and search_value != "":
+ self.SearchInTree(search_value, "next")
+ else:
+ event.Skip()