/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/tree.py
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revision 233 by bh, Fri Jul 19 15:15:16 2002 UTC revision 521 by jonathan, Wed Mar 12 13:18:50 2003 UTC
# Line 9  Line 9 
9    
10  __version__ = "$Revision$"  __version__ = "$Revision$"
11    
12  from types import StringType  from types import StringType, UnicodeType
13    
14  from wxPython.wx import *  from wxPython.wx import *
15    
16    from Thuban import _
17    from Thuban.UI.common import *
18    
19    from Thuban.Model.color import Color
20    
21  from Thuban.Model.messages import CHANGED  from Thuban.Model.messages import CHANGED
22  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer
23  from Thuban.Model.map import Map  from Thuban.Model.map import Map
24    
25  from dialogs import NonModalDialog  from dialogs import NonModalDialog
26  from messages import SESSION_CHANGED, SELECTED_LAYER  from messages import SESSION_REPLACED, SELECTED_LAYER
27    
28    BMP_SIZE = 15
29    
30  class SessionTreeCtrl(wxTreeCtrl):  class SessionTreeCtrl(wxTreeCtrl):
31    
# Line 44  class SessionTreeCtrl(wxTreeCtrl): Line 50  class SessionTreeCtrl(wxTreeCtrl):
50      """      """
51    
52      def __init__(self, parent, ID, app):      def __init__(self, parent, ID, app):
53    
54          # Use the WANTS_CHARS style so the panel doesn't eat the Return key.          # Use the WANTS_CHARS style so the panel doesn't eat the Return key.
55          wxTreeCtrl.__init__(self, parent, ID)          wxTreeCtrl.__init__(self, parent, ID)
56    
# Line 55  class SessionTreeCtrl(wxTreeCtrl): Line 62  class SessionTreeCtrl(wxTreeCtrl):
62          # Dictionary mapping layer id's to tree items          # Dictionary mapping layer id's to tree items
63          self.layer_to_item = {}          self.layer_to_item = {}
64    
65          self.app.Subscribe(SESSION_CHANGED, self.session_changed)          self.app.Subscribe(SESSION_REPLACED, self.session_changed)
66          self.app.interactor.Subscribe(SELECTED_LAYER, self.layer_selected)          self.app.interactor.Subscribe(SELECTED_LAYER, self.layer_selected)
67    
68          # the session currently displayed in the tree          # the session currently displayed in the tree
69          self.session = None          self.session = None
70    
71    
72          # pretend the session has changed to build the initial tree          # pretend the session has changed to build the initial tree
73          self.session_changed()          self.session_changed()
74    
# Line 70  class SessionTreeCtrl(wxTreeCtrl): Line 78  class SessionTreeCtrl(wxTreeCtrl):
78          if self.session is not None:          if self.session is not None:
79              self.session.Unsubscribe(CHANGED, self.update_tree)              self.session.Unsubscribe(CHANGED, self.update_tree)
80              self.session = None              self.session = None
81          self.app.Unsubscribe(SESSION_CHANGED, self.session_changed)          self.app.Unsubscribe(SESSION_REPLACED, self.session_changed)
82          self.app.interactor.Unsubscribe(SELECTED_LAYER, self.layer_selected)          self.app.interactor.Unsubscribe(SELECTED_LAYER, self.layer_selected)
83    
84      def update_tree(self, *args):      def update_tree(self, *args):
85          """Clear and rebuild the tree"""          """Clear and rebuild the tree"""
86          self.DeleteAllItems()          self.DeleteAllItems()
87          self.layer_to_item.clear()          self.layer_to_item.clear()
88            self.image_list = wxImageList(BMP_SIZE, BMP_SIZE, False, 0)
89    
90            bmp = wxEmptyBitmap(BMP_SIZE, BMP_SIZE)
91            dc = wxMemoryDC()
92            dc.SelectObject(bmp)
93            dc.SetBrush(wxBLACK_BRUSH)
94            dc.Clear()
95            dc.SelectObject(wxNullBitmap)
96    
97            self.emptyImageIndex = \
98                self.image_list.AddWithColourMask(bmp, wxColour(0, 0, 0))
99    
100            self.AssignImageList(self.image_list)
101    
102          session = self.app.session          session = self.app.session
103          info = session.TreeInfo()          info = session.TreeInfo()
104          root = self.AddRoot(info[0])          root = self.AddRoot(info[0], -1, -1, None)
105            self.SetItemImage(root, self.emptyImageIndex)
106          self.add_items(root, info[1])          self.add_items(root, info[1])
107          self.Expand(root)          self.Expand(root)
108          # select the selected layer          # select the selected layer
# Line 97  class SessionTreeCtrl(wxTreeCtrl): Line 119  class SessionTreeCtrl(wxTreeCtrl):
119                  self.SelectItem(item)                  self.SelectItem(item)
120    
121      def add_items(self, parent, items):      def add_items(self, parent, items):
122    
123            if items is None: return
124    
125          for item in items:          for item in items:
126              if hasattr(item, "TreeInfo"):              if hasattr(item, "TreeInfo"):
127                  # Supports the TreeInfo protocol                  # Supports the TreeInfo protocol
128                  info = item.TreeInfo()                  info = item.TreeInfo()
129                  treeitem = self.AppendItem(parent, info[0])                  treeitem = self.AppendItem(parent, info[0], -1, -1, None)
130                    self.SetItemImage(treeitem, self.emptyImageIndex)
131                  self.SetPyData(treeitem, item)                  self.SetPyData(treeitem, item)
132                  self.add_items(treeitem, info[1])                  self.add_items(treeitem, info[1])
133                  self.Expand(treeitem)                  self.Expand(treeitem)
134                  if isinstance(item, Layer):                  if isinstance(item, Layer):
135                      self.layer_to_item[id(item)] = treeitem                      self.layer_to_item[id(item)] = treeitem
136              elif isinstance(item, StringType):              elif isinstance(item, StringType) or \
137                     isinstance(item, UnicodeType):
138                  # it's a string                  # it's a string
139                  # FIXME: What to do about UNICODE                  treeitem = self.AppendItem(parent, item, -1, -1, None)
140                  self.AppendItem(parent, item)                  self.SetItemImage(treeitem, self.emptyImageIndex)
141              else:              else:
142                  # assume its a sequence (title, items)                  # assume its a sequence (title, items)
143                  treeitem = self.AppendItem(parent, item[0])                  if isinstance(item[1], Color):
144                  self.add_items(treeitem, item[1])  
145                        treeitem = self.AppendItem(parent, "(%s)" % item[0])
146    
147                        bmp = wxEmptyBitmap(BMP_SIZE, BMP_SIZE)
148                        brush = wxBrush(Color2wxColour(item[1]), wxSOLID)
149                        dc = wxMemoryDC()
150                        dc.SelectObject(bmp)
151                        dc.SetBrush(brush)
152                        dc.Clear()
153                        dc.DrawRoundedRectangle(0, 0,
154                                                bmp.GetWidth(), bmp.GetHeight(),
155                                                4)
156                        dc.SelectObject(wxNullBitmap)
157    
158                        i = self.image_list.Add(bmp)
159                        self.SetItemImage(treeitem, i)
160                    else:
161                        treeitem = self.AppendItem(parent, item[0], -1, -1, None)
162                        self.SetItemImage(treeitem, self.emptyImageIndex)
163                        self.add_items(treeitem, item[1])
164                  self.Expand(treeitem)                  self.Expand(treeitem)
165    
166      def session_changed(self, *args):      def session_changed(self, *args):
# Line 136  class SessionTreeCtrl(wxTreeCtrl): Line 182  class SessionTreeCtrl(wxTreeCtrl):
182              if isinstance(object, Layer) or isinstance(object, Map):              if isinstance(object, Layer) or isinstance(object, Map):
183                  break                  break
184              item = self.GetItemParent(item)              item = self.GetItemParent(item)
185            else:
186                # No layer or map was found in the chain of parents, so
187                # there's nothing we can do.
188                return
189    
190          self.changing_selection = 1          self.changing_selection = 1
191          try:          try:
# Line 173  class SessionTreeView(NonModalDialog): Line 223  class SessionTreeView(NonModalDialog):
223      """Non modal dialog showing the session as a tree"""      """Non modal dialog showing the session as a tree"""
224    
225      def __init__(self, parent, app, name):      def __init__(self, parent, app, name):
226          NonModalDialog.__init__(self, parent, app.interactor, name, "Session")          NonModalDialog.__init__(self, parent, app.interactor, name,
227                                    _("Session"))
228          self.tree = SessionTreeCtrl(self, -1, app)          self.tree = SessionTreeCtrl(self, -1, app)
229    
230      def OnClose(self, event):      def OnClose(self, event):
         #self.interactor.Unsubscribe(SELECTED_SHAPE, self.select_shape)  
231          NonModalDialog.OnClose(self, event)          NonModalDialog.OnClose(self, event)
232    
233          # if there were a way to get notified when the tree control          # if there were a way to get notified when the tree control
# Line 185  class SessionTreeView(NonModalDialog): Line 235  class SessionTreeView(NonModalDialog):
235          # of doing it here. (EVT_WINDOW_DESTROY doesn't seem to sent at          # of doing it here. (EVT_WINDOW_DESTROY doesn't seem to sent at
236          # all)          # all)
237          self.tree.unsubscribe_all()          self.tree.unsubscribe_all()
238    
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