wxPython/wx/tools/XRCed/tree.py

   1 # Name:         tree.py
   2 # Purpose:      XRC editor, XML_tree class
   3 # Author:       Roman Rolinsky <rolinsky@mema.ucl.ac.be>
   4 # Created:      02.12.2002
   5 # RCS-ID:       $Id$
   6
   7 from xxx import *                       # xxx imports globals and params
   8 import types
   9
  10 # Constant to define standart window name
  11 STD_NAME = '_XRCED_T_W'
  12
  13 # Icons
  14 import images
  15
  16 class MemoryFile:
  17     def __init__(self, name):
  18         self.name = name
  19         self.buffer = ''
  20     def write(self, data):
  21         self.buffer += data.encode()
  22     def close(self):
  23         wxMemoryFSHandler_AddFile(self.name, self.buffer)
  24
  25 ################################################################################
  26
  27 # Redefine writing to include encoding
  28 class MyDocument(minidom.Document):
  29     def __init__(self):
  30         minidom.Document.__init__(self)
  31         self.encoding = ''
  32     def writexml(self, writer, indent="", addindent="", newl="", encoding=""):
  33         if encoding: encdstr = 'encoding="%s"' % encoding
  34         else: encdstr = ''
  35         writer.write('<?xml version="1.0" %s?>\n' % encdstr)
  36         for node in self.childNodes:
  37             node.writexml(writer, indent, addindent, newl)
  38
  39 ################################################################################
  40
  41 # Ids for menu commands
  42 class ID_NEW:
  43     PANEL = wxNewId()
  44     DIALOG = wxNewId()
  45     FRAME = wxNewId()
  46     TOOL_BAR = wxNewId()
  47     TOOL = wxNewId()
  48     MENU_BAR = wxNewId()
  49     MENU = wxNewId()
  50
  51     STATIC_TEXT = wxNewId()
  52     TEXT_CTRL = wxNewId()
  53
  54     BUTTON = wxNewId()
  55     BITMAP_BUTTON = wxNewId()
  56     RADIO_BUTTON = wxNewId()
  57     SPIN_BUTTON = wxNewId()
  58
  59     STATIC_BOX = wxNewId()
  60     CHECK_BOX = wxNewId()
  61     RADIO_BOX = wxNewId()
  62     COMBO_BOX = wxNewId()
  63     LIST_BOX = wxNewId()
  64
  65     STATIC_LINE = wxNewId()
  66     STATIC_BITMAP = wxNewId()
  67     CHOICE = wxNewId()
  68     SLIDER = wxNewId()
  69     GAUGE = wxNewId()
  70     SCROLL_BAR = wxNewId()
  71     TREE_CTRL = wxNewId()
  72     LIST_CTRL = wxNewId()
  73     CHECK_LIST = wxNewId()
  74     NOTEBOOK = wxNewId()
  75     SCROLLED_WINDOW = wxNewId()
  76     HTML_WINDOW = wxNewId()
  77     CALENDAR_CTRL = wxNewId()
  78     GENERIC_DIR_CTRL = wxNewId()
  79     SPIN_CTRL = wxNewId()
  80     UNKNOWN = wxNewId()
  81
  82     BOX_SIZER = wxNewId()
  83     STATIC_BOX_SIZER = wxNewId()
  84     GRID_SIZER = wxNewId()
  85     FLEX_GRID_SIZER = wxNewId()
  86     SPACER = wxNewId()
  87     TOOL_BAR = wxNewId()
  88     TOOL = wxNewId()
  89     MENU = wxNewId()
  90     MENU_ITEM = wxNewId()
  91     SEPARATOR = wxNewId()
  92     LAST = wxNewId()
  93
  94 class PullDownMenu:
  95     ID_EXPAND = wxNewId()
  96     ID_COLLAPSE = wxNewId()
  97     ID_PASTE_SIBLING = wxNewId()
  98
  99     def __init__(self, parent):
 100         self.ID_DELETE = parent.ID_DELETE
 101         EVT_MENU_RANGE(parent, ID_NEW.PANEL, ID_NEW.LAST, parent.OnCreate)
 102         EVT_MENU_RANGE(parent, 1000 + ID_NEW.PANEL, 1000 + ID_NEW.LAST, parent.OnReplace)
 103         EVT_MENU(parent, self.ID_COLLAPSE, parent.OnCollapse)
 104         EVT_MENU(parent, self.ID_EXPAND, parent.OnExpand)
 105         EVT_MENU(parent, self.ID_PASTE_SIBLING, parent.OnPaste)
 106         # We connect to tree, but process in frame
 107         EVT_MENU_HIGHLIGHT_ALL(g.tree, parent.OnPullDownHighlight)
 108
 109         # Mapping from IDs to element names
 110         self.createMap = {
 111             ID_NEW.PANEL: 'wxPanel',
 112             ID_NEW.DIALOG: 'wxDialog',
 113             ID_NEW.FRAME: 'wxFrame',
 114             ID_NEW.TOOL_BAR: 'wxToolBar',
 115             ID_NEW.TOOL: 'tool',
 116             ID_NEW.MENU_BAR: 'wxMenuBar',
 117             ID_NEW.MENU: 'wxMenu',
 118             ID_NEW.MENU_ITEM: 'wxMenuItem',
 119             ID_NEW.SEPARATOR: 'separator',
 120
 121             ID_NEW.STATIC_TEXT: 'wxStaticText',
 122             ID_NEW.TEXT_CTRL: 'wxTextCtrl',
 123
 124             ID_NEW.BUTTON: 'wxButton',
 125             ID_NEW.BITMAP_BUTTON: 'wxBitmapButton',
 126             ID_NEW.RADIO_BUTTON: 'wxRadioButton',
 127             ID_NEW.SPIN_BUTTON: 'wxSpinButton',
 128
 129             ID_NEW.STATIC_BOX: 'wxStaticBox',
 130             ID_NEW.CHECK_BOX: 'wxCheckBox',
 131             ID_NEW.RADIO_BOX: 'wxRadioBox',
 132             ID_NEW.COMBO_BOX: 'wxComboBox',
 133             ID_NEW.LIST_BOX: 'wxListBox',
 134
 135             ID_NEW.STATIC_LINE: 'wxStaticLine',
 136             ID_NEW.STATIC_BITMAP: 'wxStaticBitmap',
 137             ID_NEW.CHOICE: 'wxChoice',
 138             ID_NEW.SLIDER: 'wxSlider',
 139             ID_NEW.GAUGE: 'wxGauge',
 140             ID_NEW.SCROLL_BAR: 'wxScrollBar',
 141             ID_NEW.TREE_CTRL: 'wxTreeCtrl',
 142             ID_NEW.LIST_CTRL: 'wxListCtrl',
 143             ID_NEW.CHECK_LIST: 'wxCheckList',
 144             ID_NEW.NOTEBOOK: 'wxNotebook',
 145             ID_NEW.SCROLLED_WINDOW: 'wxScrolledWindow',
 146             ID_NEW.HTML_WINDOW: 'wxHtmlWindow',
 147             ID_NEW.CALENDAR_CTRL: 'wxCalendarCtrl',
 148             ID_NEW.GENERIC_DIR_CTRL: 'wxGenericDirCtrl',
 149             ID_NEW.SPIN_CTRL: 'wxSpinCtrl',
 150
 151             ID_NEW.BOX_SIZER: 'wxBoxSizer',
 152             ID_NEW.STATIC_BOX_SIZER: 'wxStaticBoxSizer',
 153             ID_NEW.GRID_SIZER: 'wxGridSizer',
 154             ID_NEW.FLEX_GRID_SIZER: 'wxFlexGridSizer',
 155             ID_NEW.SPACER: 'spacer',
 156             ID_NEW.UNKNOWN: 'unknown',
 157             }
 158         self.topLevel = [
 159             (ID_NEW.PANEL, 'Panel', 'Create panel'),
 160             (ID_NEW.DIALOG, 'Dialog', 'Create dialog'),
 161             (ID_NEW.FRAME, 'Frame', 'Create frame'),
 162             None,
 163             (ID_NEW.TOOL_BAR, 'ToolBar', 'Create toolbar'),
 164             (ID_NEW.MENU_BAR, 'MenuBar', 'Create menubar'),
 165             (ID_NEW.MENU, 'Menu', 'Create menu')
 166             ]
 167         self.containers = [
 168              (ID_NEW.PANEL, 'Panel', 'Create panel'),
 169              (ID_NEW.NOTEBOOK, 'Notebook', 'Create notebook control'),
 170              (ID_NEW.TOOL_BAR, 'ToolBar', 'Create toolbar'),
 171             ]
 172         self.sizers = [
 173              (ID_NEW.BOX_SIZER, 'BoxSizer', 'Create box sizer'),
 174              (ID_NEW.STATIC_BOX_SIZER, 'StaticBoxSizer',
 175               'Create static box sizer'),
 176              (ID_NEW.GRID_SIZER, 'GridSizer', 'Create grid sizer'),
 177              (ID_NEW.FLEX_GRID_SIZER, 'FlexGridSizer',
 178               'Create flexgrid sizer'),
 179              (ID_NEW.SPACER, 'Spacer', 'Create spacer'),
 180              ]
 181         self.controls = [
 182             ['control', 'Various controls',
 183              (ID_NEW.STATIC_TEXT, 'Label', 'Create label'),
 184              (ID_NEW.STATIC_BITMAP, 'Bitmap', 'Create bitmap'),
 185              (ID_NEW.STATIC_LINE, 'Line', 'Create line'),
 186              (ID_NEW.TEXT_CTRL, 'TextBox', 'Create text box'),
 187              (ID_NEW.CHOICE, 'Choice', 'Create choice'),
 188              (ID_NEW.SLIDER, 'Slider', 'Create slider'),
 189              (ID_NEW.GAUGE, 'Gauge', 'Create gauge'),
 190              (ID_NEW.SPIN_CTRL, 'SpinCtrl', 'Create spin'),
 191              (ID_NEW.SCROLL_BAR, 'ScrollBar', 'Create scroll bar'),
 192              (ID_NEW.TREE_CTRL, 'TreeCtrl', 'Create tree'),
 193              (ID_NEW.LIST_CTRL, 'ListCtrl', 'Create list'),
 194              (ID_NEW.CHECK_LIST, 'CheckList', 'Create check list'),
 195              (ID_NEW.SCROLLED_WINDOW, 'ScrolledWindow', 'Create scrolled window'),
 196              (ID_NEW.HTML_WINDOW, 'HtmlWindow', 'Create HTML window'),
 197              (ID_NEW.CALENDAR_CTRL, 'CalendarCtrl', 'Create calendar control'),
 198              (ID_NEW.GENERIC_DIR_CTRL, 'GenericDirCtrl', 'Create generic dir control'),
 199              (ID_NEW.UNKNOWN, 'Unknown', 'Create custom control placeholder'),
 200              ],
 201             ['button', 'Buttons',
 202              (ID_NEW.BUTTON, 'Button', 'Create button'),
 203              (ID_NEW.BITMAP_BUTTON, 'BitmapButton', 'Create bitmap button'),
 204              (ID_NEW.RADIO_BUTTON, 'RadioButton', 'Create radio button'),
 205              (ID_NEW.SPIN_BUTTON, 'SpinButton', 'Create spin button'),
 206              ],
 207             ['box', 'Boxes',
 208              (ID_NEW.STATIC_BOX, 'StaticBox', 'Create static box'),
 209              (ID_NEW.CHECK_BOX, 'CheckBox', 'Create check box'),
 210              (ID_NEW.RADIO_BOX, 'RadioBox', 'Create radio box'),
 211              (ID_NEW.COMBO_BOX, 'ComboBox', 'Create combo box'),
 212              (ID_NEW.LIST_BOX, 'ListBox', 'Create list box'),
 213              ],
 214             ['container', 'Containers',
 215              (ID_NEW.PANEL, 'Panel', 'Create panel'),
 216              (ID_NEW.NOTEBOOK, 'Notebook', 'Create notebook control'),
 217              (ID_NEW.TOOL_BAR, 'ToolBar', 'Create toolbar'),
 218              ],
 219             ['sizer', 'Sizers',
 220              (ID_NEW.BOX_SIZER, 'BoxSizer', 'Create box sizer'),
 221              (ID_NEW.STATIC_BOX_SIZER, 'StaticBoxSizer',
 222               'Create static box sizer'),
 223              (ID_NEW.GRID_SIZER, 'GridSizer', 'Create grid sizer'),
 224              (ID_NEW.FLEX_GRID_SIZER, 'FlexGridSizer',
 225               'Create flexgrid sizer'),
 226              (ID_NEW.SPACER, 'Spacer', 'Create spacer'),
 227              ]
 228             ]
 229         self.menuControls = [
 230             (ID_NEW.MENU, 'Menu', 'Create menu'),
 231             (ID_NEW.MENU_ITEM, 'MenuItem', 'Create menu item'),
 232             (ID_NEW.SEPARATOR, 'Separator', 'Create separator'),
 233             ]
 234         self.toolBarControls = [
 235             (ID_NEW.TOOL, 'Tool', 'Create tool'),
 236             (ID_NEW.SEPARATOR, 'Separator', 'Create separator'),
 237             ['control', 'Various controls',
 238              (ID_NEW.STATIC_TEXT, 'Label', 'Create label'),
 239              (ID_NEW.STATIC_BITMAP, 'Bitmap', 'Create bitmap'),
 240              (ID_NEW.STATIC_LINE, 'Line', 'Create line'),
 241              (ID_NEW.TEXT_CTRL, 'TextBox', 'Create text box'),
 242              (ID_NEW.CHOICE, 'Choice', 'Create choice'),
 243              (ID_NEW.SLIDER, 'Slider', 'Create slider'),
 244              (ID_NEW.GAUGE, 'Gauge', 'Create gauge'),
 245              (ID_NEW.SCROLL_BAR, 'ScrollBar', 'Create scroll bar'),
 246              (ID_NEW.LIST_CTRL, 'ListCtrl', 'Create list control'),
 247              (ID_NEW.CHECK_LIST, 'CheckList', 'Create check list'),
 248              ],
 249             ['button', 'Buttons',
 250              (ID_NEW.BUTTON, 'Button', 'Create button'),
 251              (ID_NEW.BITMAP_BUTTON, 'BitmapButton', 'Create bitmap button'),
 252              (ID_NEW.RADIO_BUTTON, 'RadioButton', 'Create radio button'),
 253              (ID_NEW.SPIN_BUTTON, 'SpinButton', 'Create spin button'),
 254              ],
 255             ['box', 'Boxes',
 256              (ID_NEW.STATIC_BOX, 'StaticBox', 'Create static box'),
 257              (ID_NEW.CHECK_BOX, 'CheckBox', 'Create check box'),
 258              (ID_NEW.RADIO_BOX, 'RadioBox', 'Create radio box'),
 259              (ID_NEW.COMBO_BOX, 'ComboBox', 'Create combo box'),
 260              (ID_NEW.LIST_BOX, 'ListBox', 'Create list box'),
 261              ],
 262             ]
 263
 264 ################################################################################
 265
 266 # Set menu to list items.
 267 # Each menu command is a tuple (id, label, help)
 268 # submenus are lists [id, label, help, submenu]
 269 # and separators are any other type
 270 def SetMenu(m, list):
 271     for l in list:
 272         if type(l) == types.TupleType:
 273             apply(m.Append, l)
 274         elif type(l) == types.ListType:
 275             subMenu = wxMenu()
 276             SetMenu(subMenu, l[2:])
 277             m.AppendMenu(wxNewId(), l[0], subMenu, l[1])
 278         else:                           # separator
 279             m.AppendSeparator()
 280 # Same, but adds 1000 to all IDs
 281 def SetMenu2(m, list):
 282     for l in list:
 283         if type(l) == types.TupleType:
 284             # Shift ID
 285             l = (1000 + l[0],) + l[1:]
 286             apply(m.Append, l)
 287         elif type(l) == types.ListType:
 288             subMenu = wxMenu()
 289             SetMenu2(subMenu, l[2:])
 290             m.AppendMenu(wxNewId(), l[0], subMenu, l[1])
 291         else:                           # separator
 292             m.AppendSeparator()
 293
 294 ################################################################################
 295
 296 class HighLightBox:
 297     def __init__(self, pos, size):
 298         if size.width == -1: size.width = 0
 299         if size.height == -1: size.height = 0
 300         w = g.testWin.panel
 301         l1 = wxWindow(w, -1, pos, wxSize(size.width, 2))
 302         l1.SetBackgroundColour(wxRED)
 303         l2 = wxWindow(w, -1, pos, wxSize(2, size.height))
 304         l2.SetBackgroundColour(wxRED)
 305         l3 = wxWindow(w, -1, wxPoint(pos.x + size.width - 2, pos.y), wxSize(2, size.height))
 306         l3.SetBackgroundColour(wxRED)
 307         l4 = wxWindow(w, -1, wxPoint(pos.x, pos.y + size.height - 2), wxSize(size.width, 2))
 308         l4.SetBackgroundColour(wxRED)
 309         self.lines = [l1, l2, l3, l4]
 310     # Move highlight to a new position
 311     def Replace(self, pos, size):
 312         if size.width == -1: size.width = 0
 313         if size.height == -1: size.height = 0
 314         self.lines[0].SetDimensions(pos.x, pos.y, size.width, 2)
 315         self.lines[1].SetDimensions(pos.x, pos.y, 2, size.height)
 316         self.lines[2].SetDimensions(pos.x + size.width - 2, pos.y, 2, size.height)
 317         self.lines[3].SetDimensions(pos.x, pos.y + size.height - 2, size.width, 2)
 318     # Remove it
 319     def Remove(self):
 320         map(wxWindow.Destroy, self.lines)
 321         g.testWin.highLight = None
 322
 323 ################################################################################
 324
 325 class XML_Tree(wxTreeCtrl):
 326     def __init__(self, parent, id):
 327         wxTreeCtrl.__init__(self, parent, id, style = wxTR_HAS_BUTTONS)
 328         self.SetBackgroundColour(wxColour(224, 248, 224))
 329         # Register events
 330         EVT_TREE_SEL_CHANGED(self, self.GetId(), self.OnSelChanged)
 331         # One works on Linux, another on Windows
 332         if wxPlatform == '__WXGTK__':
 333             EVT_TREE_ITEM_ACTIVATED(self, self.GetId(), self.OnItemActivated)
 334         else:
 335             EVT_LEFT_DCLICK(self, self.OnDClick)
 336         EVT_RIGHT_DOWN(self, self.OnRightDown)
 337         EVT_TREE_ITEM_EXPANDED(self, self.GetId(), self.OnItemExpandedCollapsed)
 338         EVT_TREE_ITEM_COLLAPSED(self, self.GetId(), self.OnItemExpandedCollapsed)
 339
 340         self.selection = None
 341         self.needUpdate = False
 342         self.pendingHighLight = None
 343         self.ctrl = self.shift = False
 344         self.dom = None
 345         # Create image list
 346         il = wxImageList(16, 16, True)
 347         self.rootImage = il.Add(images.getTreeRootImage().Scale(16,16).ConvertToBitmap())
 348         xxxObject.image = il.Add(images.getTreeDefaultImage().Scale(16,16).ConvertToBitmap())
 349         xxxPanel.image = il.Add(images.getTreePanelImage().Scale(16,16).ConvertToBitmap())
 350         xxxDialog.image = il.Add(images.getTreeDialogImage().Scale(16,16).ConvertToBitmap())
 351         xxxFrame.image = il.Add(images.getTreeFrameImage().Scale(16,16).ConvertToBitmap())
 352         xxxMenuBar.image = il.Add(images.getTreeMenuBarImage().Scale(16,16).ConvertToBitmap())
 353         xxxMenu.image = il.Add(images.getTreeMenuImage().Scale(16,16).ConvertToBitmap())
 354         xxxMenuItem.image = il.Add(images.getTreeMenuItemImage().Scale(16,16).ConvertToBitmap())
 355         xxxToolBar.image = il.Add(images.getTreeToolBarImage().Scale(16,16).ConvertToBitmap())
 356         xxxTool.image = il.Add(images.getTreeToolImage().Scale(16,16).ConvertToBitmap())
 357         xxxSeparator.image = il.Add(images.getTreeSeparatorImage().Scale(16,16).ConvertToBitmap())
 358         xxxSizer.imageH = il.Add(images.getTreeSizerHImage().Scale(16,16).ConvertToBitmap())
 359         xxxSizer.imageV = il.Add(images.getTreeSizerVImage().Scale(16,16).ConvertToBitmap())
 360         xxxStaticBoxSizer.imageH = il.Add(images.getTreeStaticBoxSizerHImage().Scale(16,16).ConvertToBitmap())
 361         xxxStaticBoxSizer.imageV = il.Add(images.getTreeStaticBoxSizerVImage().Scale(16,16).ConvertToBitmap())
 362         xxxGridSizer.image = il.Add(images.getTreeSizerGridImage().Scale(16,16).ConvertToBitmap())
 363         xxxFlexGridSizer.image = il.Add(images.getTreeSizerFlexGridImage().Scale(16,16).ConvertToBitmap())
 364         self.il = il
 365         self.SetImageList(il)
 366
 367     def RegisterKeyEvents(self):
 368         EVT_KEY_DOWN(self, g.tools.OnKeyDown)
 369         EVT_KEY_UP(self, g.tools.OnKeyUp)
 370         EVT_ENTER_WINDOW(self, g.tools.OnMouse)
 371         EVT_LEAVE_WINDOW(self, g.tools.OnMouse)
 372
 373     def Unselect(self):
 374         self.selection = None
 375         wxTreeCtrl.Unselect(self)
 376         g.tools.UpdateUI()
 377
 378     def ExpandAll(self, item):
 379         if self.ItemHasChildren(item):
 380             self.Expand(item)
 381             i, cookie = self.GetFirstChild(item)
 382             children = []
 383             while i.IsOk():
 384                 children.append(i)
 385                 i, cookie = self.GetNextChild(item, cookie)
 386             for i in children:
 387                 self.ExpandAll(i)
 388     def CollapseAll(self, item):
 389         if self.ItemHasChildren(item):
 390             i, cookie = self.GetFirstChild(item)
 391             children = []
 392             while i.IsOk():
 393                 children.append(i)
 394                 i, cookie = self.GetNextChild(item, cookie)
 395             for i in children:
 396                 self.CollapseAll(i)
 397             self.Collapse(item)
 398
 399     # Clear tree
 400     def Clear(self):
 401         self.DeleteAllItems()
 402         # Add minimal structure
 403         if self.dom: self.dom.unlink()
 404         self.dom = MyDocument()
 405         self.dummyNode = self.dom.createComment('dummy node')
 406         # Create main node
 407         self.mainNode = self.dom.createElement('resource')
 408         self.dom.appendChild(self.mainNode)
 409         self.rootObj = xxxMainNode(self.dom)
 410         self.root = self.AddRoot('XML tree', self.rootImage,
 411                                  data=wxTreeItemData(self.rootObj))
 412         self.SetItemHasChildren(self.root)
 413         self.Unselect()
 414         self.Expand(self.root)
 415
 416     # Clear old data and set new
 417     def SetData(self, dom):
 418         self.DeleteAllItems()
 419         # Add minimal structure
 420         if self.dom: self.dom.unlink()
 421         self.dom = dom
 422         self.dummyNode = self.dom.createComment('dummy node')
 423         # Find 'resource' child, add it's children
 424         self.mainNode = dom.documentElement
 425         self.rootObj = xxxMainNode(self.dom)
 426         self.root = self.AddRoot('XML tree', self.rootImage,
 427                                  data=wxTreeItemData(self.rootObj))
 428         self.SetItemHasChildren(self.root)
 429         nodes = self.mainNode.childNodes[:]
 430         for node in nodes:
 431             if IsObject(node):
 432                 self.AddNode(self.root, None, node)
 433             else:
 434                 self.mainNode.removeChild(node)
 435                 node.unlink()
 436         self.Expand(self.root)
 437         self.Unselect()
 438
 439     # Add tree item for given parent item if node is DOM element node with
 440     # 'object' tag. xxxParent is parent xxx object
 441     def AddNode(self, itemParent, xxxParent, node):
 442         # Set item data to current node
 443         try:
 444             xxx = MakeXXXFromDOM(xxxParent, node)
 445         except:
 446             print 'ERROR: MakeXXXFromDom(%s, %s)' % (xxxParent, node)
 447             raise
 448         treeObj = xxx.treeObject()
 449         # Append tree item
 450         item = self.AppendItem(itemParent, treeObj.treeName(),
 451                                image=treeObj.treeImage(),
 452                                data=wxTreeItemData(xxx))
 453         # Try to find children objects
 454         if treeObj.hasChildren:
 455             nodes = treeObj.element.childNodes[:]
 456             for n in nodes:
 457                 if IsObject(n):
 458                     self.AddNode(item, treeObj, n)
 459                 elif n.nodeType != minidom.Node.ELEMENT_NODE:
 460                     treeObj.element.removeChild(n)
 461                     n.unlink()
 462
 463     # Insert new item at specific position
 464     def InsertNode(self, itemParent, parent, elem, nextItem):
 465         # Insert in XML tree and wxWin
 466         xxx = MakeXXXFromDOM(parent, elem)
 467         # If nextItem is None, we append to parent, otherwise insert before it
 468         if nextItem.IsOk():
 469             node = self.GetPyData(nextItem).element
 470             parent.element.insertBefore(elem, node)
 471             # Inserting before is difficult, se we insert after or first child
 472             index = self.ItemIndex(nextItem)
 473             newItem = self.InsertItemBefore(itemParent, index,
 474                         xxx.treeName(), image=xxx.treeImage())
 475             self.SetPyData(newItem, xxx)
 476         else:
 477             parent.element.appendChild(elem)
 478             newItem = self.AppendItem(itemParent, xxx.treeName(), image=xxx.treeImage(),
 479                                       data=wxTreeItemData(xxx))
 480         # Add children items
 481         if xxx.hasChildren:
 482             treeObj = xxx.treeObject()
 483             for n in treeObj.element.childNodes:
 484                 if IsObject(n):
 485                     self.AddNode(newItem, treeObj, n)
 486         return newItem
 487
 488     # Remove leaf of tree, return it's data object
 489     def RemoveLeaf(self, leaf):
 490         xxx = self.GetPyData(leaf)
 491         node = xxx.element
 492         parent = node.parentNode
 493         parent.removeChild(node)
 494         self.Delete(leaf)
 495         # Reset selection object
 496         self.selection = None
 497         return node
 498     # Find position relative to the top-level window
 499     def FindNodePos(self, item):
 500         # Root at (0,0)
 501         if item == g.testWin.item: return wxPoint(0, 0)
 502         itemParent = self.GetItemParent(item)
 503         # Select NB page
 504         obj = self.FindNodeObject(item)
 505         if self.GetPyData(itemParent).treeObject().__class__ == xxxNotebook:
 506             notebook = self.FindNodeObject(itemParent)
 507             # Find position
 508             for i in range(notebook.GetPageCount()):
 509                 if notebook.GetPage(i) == obj:
 510                     if notebook.GetSelection() != i: notebook.SetSelection(i)
 511                     break
 512         # Find first ancestor which is a wxWindow (not a sizer)
 513         winParent = itemParent
 514         while self.GetPyData(winParent).isSizer:
 515             winParent = self.GetItemParent(winParent)
 516         parentPos = self.FindNodePos(winParent)
 517         # Position (-1,-1) is really (0,0)
 518         pos = obj.GetPosition()
 519         if pos == (-1,-1): pos = (0,0)
 520         return parentPos + pos
 521
 522     # Find window (or sizer) corresponding to a tree item.
 523     def FindNodeObject(self, item):
 524         testWin = g.testWin
 525         # If top-level, return testWin (or panel its panel)
 526         if item == testWin.item: return testWin.panel
 527         itemParent = self.GetItemParent(item)
 528         xxx = self.GetPyData(item).treeObject()
 529         parentWin = self.FindNodeObject(itemParent)
 530         # Top-level sizer? return window's sizer
 531         if xxx.isSizer and isinstance(parentWin, wxWindow):
 532             return parentWin.GetSizer()
 533         # Otherwise get parent's object and it's child
 534         child = parentWin.GetChildren()[self.ItemIndex(item)]
 535         # Return window or sizer for sizer items
 536         if child.GetClassName() == 'wxSizerItem':
 537             if child.IsWindow(): child = child.GetWindow()
 538             elif child.IsSizer():
 539                 child = child.GetSizer()
 540                 # Test for notebook sizers
 541                 if isinstance(child, wxNotebookSizer):
 542                     child = child.GetNotebook()
 543         return child
 544
 545     def OnSelChanged(self, evt):
 546         # Apply changes
 547         # !!! problem with wxGTK - GetOldItem is Ok if nothing selected
 548         #oldItem = evt.GetOldItem()
 549         status = ''
 550         oldItem = self.selection
 551         if oldItem:
 552             xxx = self.GetPyData(oldItem)
 553             # If some data was modified, apply changes
 554             if g.panel.IsModified():
 555                 self.Apply(xxx, oldItem)
 556                 #if conf.autoRefresh:
 557                 if g.testWin:
 558                     if g.testWin.highLight:
 559                         g.testWin.highLight.Remove()
 560                     self.needUpdate = True
 561                 status = 'Changes were applied'
 562         g.frame.SetStatusText(status)
 563         # Generate view
 564         self.selection = evt.GetItem()
 565         if not self.selection.IsOk():
 566             self.selection = None
 567             return
 568         xxx = self.GetPyData(self.selection)
 569         # Update panel
 570         g.panel.SetData(xxx)
 571         # Update tools
 572         g.tools.UpdateUI()
 573         # Hightlighting is done in OnIdle
 574         self.pendingHighLight = self.selection
 575
 576     # Check if item is in testWin subtree
 577     def IsHighlatable(self, item):
 578         if item == g.testWin.item: return False
 579         while item != self.root:
 580             item = self.GetItemParent(item)
 581             if item == g.testWin.item: return True
 582         return False
 583
 584     # Highlight selected item
 585     def HighLight(self, item):
 586         self.pendingHighLight = None
 587         # Can highlight only with some top-level windows
 588         if not g.testWin or self.GetPyData(g.testWin.item).treeObject().__class__ \
 589             not in [xxxDialog, xxxPanel, xxxFrame]:
 590             return
 591         # If a control from another window is selected, remove highlight
 592         if not self.IsHighlatable(item):
 593             if g.testWin.highLight: g.testWin.highLight.Remove()
 594             return
 595         # Get window/sizer object
 596         obj, pos = self.FindNodeObject(item), self.FindNodePos(item)
 597         size = obj.GetSize()
 598         # Highlight
 599         # Nagative positions are not working wuite well
 600         if g.testWin.highLight:
 601             g.testWin.highLight.Replace(pos, size)
 602         else:
 603             g.testWin.highLight = HighLightBox(pos, size)
 604         g.testWin.highLight.item = item
 605
 606     def ShowTestWindow(self, item):
 607         xxx = self.GetPyData(item)
 608         if g.panel.IsModified():
 609             self.Apply(xxx, item)       # apply changes
 610         treeObj = xxx.treeObject()
 611         if treeObj.className not in ['wxFrame', 'wxPanel', 'wxDialog',
 612                                      'wxMenuBar', 'wxToolBar']:
 613             wxLogMessage('No view for this element (yet)')
 614             return
 615         # Show item in bold
 616         if g.testWin:     # Reset old
 617             self.SetItemBold(g.testWin.item, False)
 618         self.CreateTestWin(item)
 619         # Maybe an error occured, so we need to test
 620         if g.testWin: self.SetItemBold(g.testWin.item)
 621
 622     # Double-click on Linux
 623     def OnItemActivated(self, evt):
 624         if evt.GetItem() != self.root:
 625             self.ShowTestWindow(evt.GetItem())
 626
 627     # Double-click on Windows
 628     def OnDClick(self, evt):
 629         item, flags = self.HitTest(evt.GetPosition())
 630         if flags in [wxTREE_HITTEST_ONITEMBUTTON, wxTREE_HITTEST_ONITEMLABEL]:
 631             if item != self.root: self.ShowTestWindow(item)
 632         else:
 633             evt.Skip()
 634
 635     def OnItemExpandedCollapsed(self, evt):
 636         # Update tool palette
 637         g.tools.UpdateUI()
 638         evt.Skip()
 639
 640     # (re)create test window
 641     def CreateTestWin(self, item):
 642         testWin = g.testWin
 643         # Create a window with this resource
 644         xxx = self.GetPyData(item).treeObject()
 645
 646         # If frame
 647 #        if xxx.__class__ == xxxFrame:
 648             # Frame can't have many children,
 649             # but it's first child possibly can...
 650 #            child = self.GetFirstChild(item)[0]
 651 #            if child.IsOk() and self.GetPyData(child).__class__ == xxxPanel:
 652 #                # Clean-up before recursive call or error
 653 #                wxMemoryFSHandler_RemoveFile('xxx.xrc')
 654 #                wxEndBusyCursor()
 655 #                self.CreateTestWin(child)
 656 #                return
 657
 658         wxBeginBusyCursor()
 659         wxYield()
 660         # Close old window, remember where it was
 661         highLight = None
 662         if testWin:
 663             pos = testWin.GetPosition()
 664             if item == testWin.item:
 665                 # Remember highlight if same top-level window
 666                 if testWin.highLight:
 667                     highLight = testWin.highLight.item
 668                 if xxx.className == 'wxPanel':
 669                     if testWin.highLight:
 670                         testWin.pendingHighLight = highLight
 671                         testWin.highLight.Remove()
 672                     testWin.panel.Destroy()
 673                     testWin.panel = None
 674                 else:
 675                     testWin.Destroy()
 676                     testWin = g.testWin = None
 677             else:
 678                 testWin.Destroy()
 679                 testWin = g.testWin = None
 680         else:
 681             pos = g.testWinPos
 682         # Save in memory FS
 683         memFile = MemoryFile('xxx.xrc')
 684         # Create partial XML file - faster for big files
 685
 686         dom = MyDocument()
 687         mainNode = dom.createElement('resource')
 688         dom.appendChild(mainNode)
 689
 690         # Remove temporarily from old parent
 691         elem = xxx.element
 692         # Change window id to _XRCED_T_W. This gives some name for
 693         # unnamed windows, and for named gives the possibility to
 694         # write sawfish scripts.
 695         if not xxx.name:
 696             name = 'noname'
 697         else:
 698             name = xxx.name
 699         elem.setAttribute('name', STD_NAME)
 700         parent = elem.parentNode
 701         next = elem.nextSibling
 702         parent.replaceChild(self.dummyNode, elem)
 703         # Append to new DOM, write it
 704         mainNode.appendChild(elem)
 705         dom.writexml(memFile, encoding=self.rootObj.params['encoding'].value())
 706         # Put back in place
 707         mainNode.removeChild(elem)
 708         dom.unlink()
 709         parent.replaceChild(elem, self.dummyNode)
 710         # Remove temporary name or restore changed
 711         if not xxx.name:
 712             elem.removeAttribute('name')
 713         else:
 714             elem.setAttribute('name', xxx.name)
 715         memFile.close()                 # write to wxMemoryFS
 716         xmlFlags = wxXRC_NO_SUBCLASSING
 717         # Use translations if encoding is not specified
 718         if g.currentEncoding == 'ascii':
 719             xmlFlags != wxXRC_USE_LOCALE
 720         res = wxXmlResource('', xmlFlags)
 721         res.Load('memory:xxx.xrc')
 722         if xxx.__class__ == xxxFrame:
 723             # Frame can't have many children,
 724             # but it's first child possibly can...
 725 #            child = self.GetFirstChild(item)[0]
 726 #            if child.IsOk() and self.GetPyData(child).__class__ == xxxPanel:
 727 #                # Clean-up before recursive call or error
 728 #                wxMemoryFSHandler_RemoveFile('xxx.xrc')
 729 #                wxEndBusyCursor()
 730 #                self.CreateTestWin(child)
 731 #                return
 732             # This currently works under GTK, but not under MSW
 733             testWin = g.testWin = wxPreFrame()
 734             res.LoadOnFrame(testWin, g.frame, STD_NAME)
 735             # Create status bar
 736             testWin.panel = testWin
 737             testWin.CreateStatusBar()
 738             testWin.SetClientSize(testWin.GetBestSize())
 739             testWin.panel = testWin
 740             testWin.SetPosition(pos)
 741             testWin.Show(True)
 742         elif xxx.__class__ == xxxPanel:
 743             # Create new frame
 744             if not testWin:
 745                 testWin = g.testWin = wxFrame(g.frame, -1, 'Panel: ' + name,
 746                                               pos=pos, name=STD_NAME)
 747             testWin.panel = res.LoadPanel(testWin, STD_NAME)
 748             testWin.SetClientSize(testWin.GetBestSize())
 749             testWin.Show(True)
 750         elif xxx.__class__ == xxxDialog:
 751             testWin = g.testWin = res.LoadDialog(None, STD_NAME)
 752             testWin.panel = testWin
 753             testWin.Layout()
 754             testWin.SetPosition(pos)
 755             testWin.Show(True)
 756             # Dialog's default code does not produce EVT_CLOSE
 757             EVT_BUTTON(testWin, wxID_OK, self.OnCloseTestWin)
 758             EVT_BUTTON(testWin, wxID_CANCEL, self.OnCloseTestWin)
 759         elif xxx.__class__ == xxxMenuBar:
 760             testWin = g.testWin = wxFrame(g.frame, -1, 'MenuBar: ' + name,
 761                                           pos=pos, name=STD_NAME)
 762             testWin.panel = None
 763             # Set status bar to display help
 764             testWin.CreateStatusBar()
 765             testWin.menuBar = res.LoadMenuBar(STD_NAME)
 766             testWin.SetMenuBar(testWin.menuBar)
 767             testWin.Show(True)
 768         elif xxx.__class__ == xxxToolBar:
 769             testWin = g.testWin = wxFrame(g.frame, -1, 'ToolBar: ' + name,
 770                                           pos=pos, name=STD_NAME)
 771             testWin.panel = None
 772             # Set status bar to display help
 773             testWin.CreateStatusBar()
 774             testWin.toolBar = res.LoadToolBar(testWin, STD_NAME)
 775             testWin.SetToolBar(testWin.toolBar)
 776             testWin.Show(True)
 777         wxMemoryFSHandler_RemoveFile('xxx.xrc')
 778         testWin.item = item
 779         EVT_CLOSE(testWin, self.OnCloseTestWin)
 780         testWin.highLight = None
 781         if highLight and not self.pendingHighLight:
 782             self.HighLight(highLight)
 783         wxEndBusyCursor()
 784
 785     def OnCloseTestWin(self, evt):
 786         self.SetItemBold(g.testWin.item, False)
 787         g.testWinPos = g.testWin.GetPosition()
 788         g.testWin.Destroy()
 789         g.testWin = None
 790
 791     # Return item index in parent
 792     def ItemIndex(self, item):
 793         n = 0                           # index of sibling
 794         prev = self.GetPrevSibling(item)
 795         while prev.IsOk():
 796             prev = self.GetPrevSibling(prev)
 797             n += 1
 798         return n
 799
 800     # Full tree index of an item - list of positions
 801     def ItemFullIndex(self, item):
 802         if not item.IsOk(): return None
 803         l = []
 804         while item != self.root:
 805             l.insert(0, self.ItemIndex(item))
 806             item = self.GetItemParent(item)
 807         return l
 808     # Get item position from full index
 809     def ItemAtFullIndex(self, index):
 810         if index is None: return wxTreeItemId()
 811         item = self.root
 812         for i in index:
 813             item = self.GetFirstChild(item)[0]
 814             for k in range(i): item = self.GetNextSibling(item)
 815         return item
 816
 817     # True if next item should be inserted after current (vs. appended to it)
 818     def NeedInsert(self, item):
 819         xxx = self.GetPyData(item)
 820         if item == self.root: return False        # root item
 821         if xxx.hasChildren and not self.GetChildrenCount(item, False):
 822             return False
 823         return not (self.IsExpanded(item) and self.GetChildrenCount(item, False))
 824
 825     # Pull-down
 826     def OnRightDown(self, evt):
 827         pullDownMenu = g.pullDownMenu
 828         # select this item
 829         pt = evt.GetPosition();
 830         item, flags = self.HitTest(pt)
 831         if item.Ok() and flags & wxTREE_HITTEST_ONITEM:
 832             self.SelectItem(item)
 833
 834         # Setup menu
 835         menu = wxMenu()
 836
 837         item = self.selection
 838         if not item:
 839             menu.Append(g.pullDownMenu.ID_EXPAND, 'Expand', 'Expand tree')
 840             menu.Append(g.pullDownMenu.ID_COLLAPSE, 'Collapse', 'Collapse tree')
 841         else:
 842 #            self.ctrl = evt.ControlDown() # save Ctrl state
 843 #            self.shift = evt.ShiftDown()  # and Shift too
 844             m = wxMenu()                  # create menu
 845             if self.ctrl:
 846                 needInsert = True
 847             else:
 848                 needInsert = self.NeedInsert(item)
 849             if item == self.root or needInsert and self.GetItemParent(item) == self.root:
 850                 SetMenu(m, pullDownMenu.topLevel)
 851             else:
 852                 xxx = self.GetPyData(item).treeObject()
 853                 # Check parent for possible child nodes if inserting sibling
 854                 if needInsert: xxx = xxx.parent
 855                 if xxx.__class__ == xxxMenuBar:
 856                     m.Append(ID_NEW.MENU, 'Menu', 'Create menu')
 857                 elif xxx.__class__ in [xxxToolBar, xxxTool] or \
 858                      xxx.__class__ == xxxSeparator and xxx.parent.__class__ == xxxToolBar:
 859                     SetMenu(m, pullDownMenu.toolBarControls)
 860                 elif xxx.__class__ in [xxxMenu, xxxMenuItem]:
 861                     SetMenu(m, pullDownMenu.menuControls)
 862                 else:
 863                     SetMenu(m, pullDownMenu.controls)
 864                     if xxx.__class__ == xxxNotebook:
 865                         m.Enable(m.FindItem('sizer'), False)
 866                     elif not (xxx.isSizer or xxx.parent and xxx.parent.isSizer):
 867                         m.Enable(ID_NEW.SPACER, False)
 868             # Select correct label for create menu
 869             if not needInsert:
 870                 if self.shift:
 871                     menu.AppendMenu(wxNewId(), 'Insert Child', m,
 872                                     'Create child object as the first child')
 873                 else:
 874                     menu.AppendMenu(wxNewId(), 'Append Child', m,
 875                                     'Create child object as the last child')
 876             else:
 877                 if self.shift:
 878                     menu.AppendMenu(wxNewId(), 'Create Sibling', m,
 879                                     'Create sibling before selected object')
 880                 else:
 881                     menu.AppendMenu(wxNewId(), 'Create Sibling', m,
 882                                     'Create sibling after selected object')
 883             # Build replace menu
 884             if item != self.root:
 885                 xxx = self.GetPyData(item).treeObject()
 886                 m = wxMenu()                  # create replace menu
 887                 if xxx.__class__ == xxxMenuBar:
 888                     m.Append(1000 + ID_NEW.MENU, 'Menu', 'Create menu')
 889                 elif xxx.__class__ in [xxxMenu, xxxMenuItem]:
 890                     SetMenu2(m, pullDownMenu.menuControls)
 891                 elif xxx.__class__ == xxxToolBar and \
 892                          self.GetItemParent(item) == self.root:
 893                     SetMenu2(m, [])
 894                 elif xxx.__class__ in [xxxFrame, xxxDialog, xxxPanel]:
 895                     SetMenu2(m, [
 896                         (ID_NEW.PANEL, 'Panel', 'Create panel'),
 897                         (ID_NEW.DIALOG, 'Dialog', 'Create dialog'),
 898                         (ID_NEW.FRAME, 'Frame', 'Create frame')])
 899                 elif xxx.isSizer:
 900                     SetMenu2(m, pullDownMenu.sizers)
 901                 else:
 902                     SetMenu2(m, pullDownMenu.controls)
 903                 id = wxNewId()
 904                 menu.AppendMenu(id, 'Replace With', m)
 905                 if not m.GetMenuItemCount(): menu.Enable(id, False)
 906             menu.AppendSeparator()
 907             # Not using standart IDs because we don't want to show shortcuts
 908             menu.Append(wxID_CUT, 'Cut', 'Cut to the clipboard')
 909             menu.Append(wxID_COPY, 'Copy', 'Copy to the clipboard')
 910             if self.ctrl and item != self.root:
 911                 menu.Append(pullDownMenu.ID_PASTE_SIBLING, 'Paste Sibling',
 912                             'Paste from the clipboard as a sibling')
 913             else:
 914                 menu.Append(wxID_PASTE, 'Paste', 'Paste from the clipboard')
 915             menu.Append(pullDownMenu.ID_DELETE,
 916                                 'Delete', 'Delete object')
 917             if self.ItemHasChildren(item):
 918                 menu.AppendSeparator()
 919                 menu.Append(pullDownMenu.ID_EXPAND, 'Expand', 'Expand subtree')
 920                 menu.Append(pullDownMenu.ID_COLLAPSE, 'Collapse', 'Collapse subtree')
 921         self.PopupMenu(menu, evt.GetPosition())
 922         menu.Destroy()
 923
 924     # Apply changes
 925     def Apply(self, xxx, item):
 926         g.panel.Apply()
 927         # Update tree view
 928         xxx = xxx.treeObject()
 929         if xxx.hasName and self.GetItemText(item) != xxx.name:
 930             self.SetItemText(item, xxx.treeName())
 931             # Item width may have changed
 932             # !!! Tric to update tree width (wxGTK, ??)
 933             self.SetIndent(self.GetIndent())
 934         # Change tree icon for sizers
 935         if isinstance(xxx, xxxBoxSizer):
 936             self.SetItemImage(item, xxx.treeImage())
 937         # Set global modified state
 938         g.frame.modified = True
 939