/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/legend.py
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revision 542 by jonathan, Thu Mar 20 09:43:16 2003 UTC revision 668 by jonathan, Mon Apr 14 17:12:57 2003 UTC
# Line 9  __version__ = "$Revision$" Line 9  __version__ = "$Revision$"
9    
10  from Thuban import _  from Thuban import _
11    
12    import resource
13    
14  from wxPython.wx import *  from wxPython.wx import *
 from dialogs import NonModalDialog  
15    
16  from Thuban.Model.layer import Layer  from Thuban.Model.layer import Layer
17  from Thuban.Model.map import Map  from Thuban.Model.map import Map
   
18  from Thuban.Model.messages import *  from Thuban.Model.messages import *
   
19  from Thuban.Model.classification import ClassGroup  from Thuban.Model.classification import ClassGroup
20    
21    from Thuban.UI.messages import *
22  from Thuban.UI.classifier import ClassDataPreviewer  from Thuban.UI.classifier import ClassDataPreviewer
23    from Thuban.UI.dock import DockPanel
24    
25    from Thuban.Lib.connector import ConnectorError
26    
27  ID_LEGEND_MOVEUP = 4001  ID_LEGEND_RAISE = 4001
28  ID_LEGEND_MOVEDOWN = 4002  ID_LEGEND_LOWER = 4002
29  ID_LEGEND_TREE = 4003  ID_LEGEND_TREE = 4003
30  ID_LEGEND_CLASSIFY = 4004  ID_LEGEND_PROPS = 4004
31  ID_LEGEND_SHOWLAYER = 4005  ID_LEGEND_SHOWLAYER = 4005
32  ID_LEGEND_HIDELAYER = 4006  ID_LEGEND_HIDELAYER = 4006
33    
34  BMP_SIZE_W = 30  BMP_SIZE_W = 30
35  BMP_SIZE_H = 15  BMP_SIZE_H = 15
36    
37  class Legend(NonModalDialog):  RAISE_BMP = "raise_layer"
38    LOWER_BMP = "lower_layer"
39    SHOW_BMP  = "show_layer"
40    HIDE_BMP  = "hide_layer"
41    PROPS_BMP = "layer_properties"
42    
     def __init__(self, parent, name, map):  
         NonModalDialog.__init__(self, parent, name,  
                                 _("Legend: %s") % map.Title())  
43    
44          self.parent = parent  class LegendPanel(DockPanel):
45    
46        def __init__(self, parent, map, mainWindow):
47            DockPanel.__init__(self, parent, -1)
48    
49            self.mainWindow = mainWindow
50            self.parent = parent
51    
52          panel = wxPanel(self, -1)          self.buttons = []
53    
         topBox = wxBoxSizer(wxVERTICAL)  
54          panelBox = wxBoxSizer(wxVERTICAL)          panelBox = wxBoxSizer(wxVERTICAL)
55    
56          buttonBox = wxGridSizer(2, 3, 0, 0)          self.toolBar = wxToolBar(self, -1)
57            self.toolBar.SetToolBitmapSize(wxSize(24, 24))
58    
59          self.buttons = []          bmp = resource.GetBitmapResource(RAISE_BMP, wxBITMAP_TYPE_XPM)
60            self.toolBar.AddTool(ID_LEGEND_RAISE, bmp,
61                shortHelpString=_("Raise Layer"))
62    
63          button = wxButton(self, ID_LEGEND_MOVEUP, _("Move Up"))          bmp = resource.GetBitmapResource(LOWER_BMP, wxBITMAP_TYPE_XPM)
64          buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)          self.toolBar.AddTool(ID_LEGEND_LOWER, bmp,
65          self.buttons.append(button)              shortHelpString=_("Lower Layer"))
66    
67          button = wxButton(self, ID_LEGEND_SHOWLAYER, _("Show Layer"))          bmp = resource.GetBitmapResource(SHOW_BMP, wxBITMAP_TYPE_XPM)
68          buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)          self.toolBar.AddTool(ID_LEGEND_SHOWLAYER, bmp,
69          self.buttons.append(button)              shortHelpString=_("Show Layer"))
70    
71          button = wxButton(self, ID_LEGEND_CLASSIFY, _("Classify"))          bmp = resource.GetBitmapResource(HIDE_BMP, wxBITMAP_TYPE_XPM)
72          buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)          self.toolBar.AddTool(ID_LEGEND_HIDELAYER, bmp,
73          self.buttons.append(button)              shortHelpString=_("Hide Layer"))
74    
75          button = wxButton(self, ID_LEGEND_MOVEDOWN, _("Move Down"))          bmp = resource.GetBitmapResource(PROPS_BMP, wxBITMAP_TYPE_XPM)
76          buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)          self.toolBar.AddTool(ID_LEGEND_PROPS, bmp,
77          self.buttons.append(button)              shortHelpString=_("Edit Layer Properties"))
78    
79          button = wxButton(self, ID_LEGEND_HIDELAYER, _("Hide Layer"))          self.toolBar.Realize()
80          buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)          panelBox.Add(self.toolBar, 0, wxGROW, 0)
         self.buttons.append(button)  
81    
82            EVT_TOOL(self, ID_LEGEND_RAISE, self._OnMoveUp)
83            EVT_TOOL(self, ID_LEGEND_LOWER, self._OnMoveDown)
84            EVT_TOOL(self, ID_LEGEND_PROPS, self._OnProperties)
85            EVT_TOOL(self, ID_LEGEND_SHOWLAYER, self._OnShowLayer)
86            EVT_TOOL(self, ID_LEGEND_HIDELAYER, self._OnHideLayer)
87    
88          EVT_BUTTON(self, ID_LEGEND_MOVEUP, self._OnMoveUp)          self.tree = LegendTree(self, ID_LEGEND_TREE, map, mainWindow)
         EVT_BUTTON(self, ID_LEGEND_MOVEDOWN, self._OnMoveDown)  
         EVT_BUTTON(self, ID_LEGEND_CLASSIFY, self._OnClassify)  
         EVT_BUTTON(self, ID_LEGEND_SHOWLAYER, self._OnShowLayer)  
         EVT_BUTTON(self, ID_LEGEND_HIDELAYER, self._OnHideLayer)  
89    
90          panelBox.Add(buttonBox, 0, 0, 4)          panelBox.Add(self.tree, 1, wxGROW, 0)
91    
92          self.tree = LegendTree(self, ID_LEGEND_TREE, map)          self.SetAutoLayout(True)
93            self.SetSizer(panelBox)
94            panelBox.SetSizeHints(self)
95    
         panelBox.Add(self.tree, 1, wxGROW, 4)  
96    
97          panel.SetAutoLayout(True)          self.panelBox = panelBox
         panel.SetSizer(panelBox)  
         panelBox.SetSizeHints(panel)  
98    
99          topBox.Add(panel, 1, wxGROW, 0)          self.__EnableButtons(False)
         panelBox.SetSizeHints(self)  
100    
101          self.SetAutoLayout(True)          self.Create()
102          self.SetSizer(topBox)  
103            EVT_CLOSE(self, self._OnClose)
104    
105    
106        def GetMap(self):
107            return self.tree.GetMap()
108    
109        def SetMap(self, map):
110            self.tree.SetMap(map)
111    
112      def DoOnSelChanged(self):      def DoOnSelChanged(self, layer, group):
         self.__EnableButtons(self.tree.GetSelection().IsOk())  
113    
114      def _OnClassify(self, event):          ok = isinstance(layer, Layer)
115          self.tree.DoOnClassify()          self.__EnableButtons(ok)
116    
117            self.mainWindow.SelectLayer(layer)
118    
119        def DoOnProperties(self):
120            list = self.tree.GetSelectedHierarchy()
121    
122            ok = isinstance(list[0], Layer)
123            if ok:
124                self.mainWindow.OpenLayerProperties(list[0], list[1])
125    
126        def Destroy(self):
127            self.__Close()
128    
129        def _OnProperties(self, event):
130            self.DoOnProperties()
131    
132      def _OnMoveUp(self, event):      def _OnMoveUp(self, event):
133          self.tree.MoveCurrentItemUp()          self.tree.MoveCurrentItemUp()
# Line 109  class Legend(NonModalDialog): Line 139  class Legend(NonModalDialog):
139          self.tree.DoOnShowLayer()          self.tree.DoOnShowLayer()
140          pass          pass
141    
142        #def Close(self, force = False):
143            #DockPanel.Close(self, force)
144            
145        def _OnClose(self, event):
146            self.__Close()
147    
148      def _OnHideLayer(self, event):      def _OnHideLayer(self, event):
149          self.tree.DoOnHideLayer()          self.tree.DoOnHideLayer()
150          pass          pass
151    
   
152      def __EnableButtons(self, on):      def __EnableButtons(self, on):
153          for b in self.buttons:          self.toolBar.EnableTool(ID_LEGEND_RAISE, on)
154              b.Enable(on)          self.toolBar.EnableTool(ID_LEGEND_LOWER, on)
155            self.toolBar.EnableTool(ID_LEGEND_SHOWLAYER,  on)
156            self.toolBar.EnableTool(ID_LEGEND_HIDELAYER,  on)
157            self.toolBar.EnableTool(ID_LEGEND_PROPS, on)
158    
159        def __Close(self):
160            self.tree.Close()
161    
162  class LegendTree(wxTreeCtrl):  class LegendTree(wxTreeCtrl):
163    
164      def __init__(self, parent, id, map):      def __init__(self, parent, id, map, mainWindow):
165          wxTreeCtrl.__init__(self, parent, id,          wxTreeCtrl.__init__(self, parent, id,
166                              style = wxTR_DEFAULT_STYLE | wxTR_HIDE_ROOT,                              style = wxTR_DEFAULT_STYLE | wxTR_HIDE_ROOT,
167                              size = (200, 200))                              size = (200, 200))
168    
169            self.mainWindow = mainWindow
170            self.map = None
171          self.parent = parent          self.parent = parent
172          self.map = map          self.layer2id = {}
         self.layer2id = None  
   
173    
174          self.image_list = None          self.image_list = None
175          self.emptyImageIndex = 0          self.emptyImageIndex = 0
176    
177          self.previewer = ClassDataPreviewer()          self.previewer = ClassDataPreviewer()
178    
   
179          EVT_TREE_ITEM_ACTIVATED(self, ID_LEGEND_TREE, self._OnItemActivated)          EVT_TREE_ITEM_ACTIVATED(self, ID_LEGEND_TREE, self._OnItemActivated)
180          EVT_TREE_SEL_CHANGED(self, ID_LEGEND_TREE, self._OnSelChanged)          EVT_TREE_SEL_CHANGED(self, ID_LEGEND_TREE, self._OnSelChanged)
181    
182          map.Subscribe(MAP_STACKING_CHANGED, self._OnMsgMapStackingChanged)          EVT_CLOSE(self, self._OnClose)
183          map.Subscribe(MAP_LAYERS_CHANGED, self._OnMsgMapLayersChanged)  
184            self.SetMap(map)
185    
186        def _OnClose(self, event):
187            self.SetMap(None)
188    
189          self.__FillTree(map)      def GetMap(self):
190            return self.map
191    
192        def SetMap(self, map):
193    
194            sub_list = [(MAP_STACKING_CHANGED, self._OnMsgMapStackingChanged),
195                        (MAP_LAYERS_ADDED, self._OnMsgMapLayersAddedRemoved),
196                        (MAP_LAYERS_REMOVED, self._OnMsgMapLayersAddedRemoved)]
197    
198            if self.map is not None:
199                for msg, func in sub_list: self.map.Unsubscribe(msg, func)
200                #self.mainWindow.application.Unsubscribe(SESSION_REPLACED,
201                    #self._OnMsgMapsChanged)
202                #try:
203                    #self.mainWindow.application.session.Unsubscribe(MAPS_CHANGED,
204                        #self._OnMsgMapsChanged)
205                #except ConnectorError:
206                    #pass
207                self.__DeleteAllItems()
208            
209            self.map = map
210    
211            if self.map is not None:
212                for msg, func in sub_list: self.map.Subscribe(msg, func)
213                #self.mainWindow.application.session.Subscribe(MAPS_CHANGED,
214                    #self._OnMsgMapsChanged)
215                #self.mainWindow.application.Subscribe(SESSION_REPLACED,
216                    #self._OnMsgMapsChanged)
217                self.__FillTree(self.map)
218    
219                
220      def MoveCurrentItemUp(self):      def MoveCurrentItemUp(self):
221          cur_id = self.GetSelection()          cur_id = self.GetSelection()
222          assert(cur_id.IsOk())          assert cur_id.IsOk()
223    
224          cur_data = self.GetPyData(cur_id)          cur_data = self.GetPyData(cur_id)
225    
# Line 162  class LegendTree(wxTreeCtrl): Line 235  class LegendTree(wxTreeCtrl):
235          elif isinstance(cur_data, ClassGroup):          elif isinstance(cur_data, ClassGroup):
236              pass              pass
237          else:          else:
238              assert(False, "Shouldn't be here.")              assert False, "Shouldn't be here."
239              pass              pass
240    
241      def MoveCurrentItemDown(self):      def MoveCurrentItemDown(self):
242          cur_id = self.GetSelection()          cur_id = self.GetSelection()
243          assert(cur_id.IsOk())          assert cur_id.IsOk()
244    
245          cur_data = self.GetPyData(cur_id)          cur_data = self.GetPyData(cur_id)
246    
# Line 176  class LegendTree(wxTreeCtrl): Line 249  class LegendTree(wxTreeCtrl):
249          elif isinstance(cur_data, ClassGroup):          elif isinstance(cur_data, ClassGroup):
250              pass              pass
251          else:          else:
252              assert(False, "Shouldn't be here.")              assert False, "Shouldn't be here."
253              pass              pass
254    
255    
# Line 193  class LegendTree(wxTreeCtrl): Line 266  class LegendTree(wxTreeCtrl):
266    
267    
268      def DoOnShowLayer(self):      def DoOnShowLayer(self):
269          self.__ShowHideLayer(True)          #self.__ShowHideLayer(True)
270            layer, group = self.GetSelectedHierarchy()
271            layer.SetVisible(True)
272    
273      def DoOnHideLayer(self):      def DoOnHideLayer(self):
274          self.__ShowHideLayer(False)          #self.__ShowHideLayer(False)
275            layer, group = self.GetSelectedHierarchy()
276            layer.SetVisible(False)
277    
278      def DoOnClassify(self):      def Sort(self):
279          id = self.GetSelection()          self.SortChildren(self.GetRootItem())
         assert(id.IsOk())  
280    
281          item = self.GetPyData(id)      def GetSelectedHierarchy(self):
282          if isinstance(item, ClassGroup):          id = self.GetSelection()
             id = self.GetItemParent(id)  
             assert(id.IsOk())  
             item = self.GetPyData(id)  
283    
284          self.parent.parent.OpenClassifier(item)          if not id.IsOk():
285                return (None, None)
286    
287      def Sort(self):          layer = self.GetPyData(id)
288          self.SortChildren(self.GetRootItem())          group = None
289    
290            if isinstance(layer, ClassGroup):
291                id = self.GetItemParent(id)
292                assert id.IsOk()
293                group = layer
294                layer = self.GetPyData(id)
295    
296            return (layer, group)
297    
298        def _OnMsgMapsChanged(self):
299            #print self.map is self.mainWindow.Map()
300            self.SetMap(self.mainWindow.Map())
301            
302      def _OnSelChanged(self, event):      def _OnSelChanged(self, event):
303          self.parent.DoOnSelChanged()          self.__UpdateSelection()
304    
305      def _OnItemActivated(self, event):      def _OnItemActivated(self, event):
306          self.DoOnClassify()          self.parent.DoOnProperties()
307    
308      def _OnMsgLayerChanged(self, layer):      def _OnMsgLayerChanged(self, layer):
309          assert(isinstance(layer, Layer))          assert isinstance(layer, Layer)
310    
311          id = self.layer2id[layer]          id = self.layer2id[layer]
312            assert id.IsOk()
313    
314          self.__FillTreeLayer(id)          # XXX: yikes! this is so bad, we should be doing what is
315            #      commented out, but there is a problem with keeping
316            #      track of the images in the image list when we replace
317            #      a layer. it ends up causing a seg fault.
318            self.__FillTree(self.map)
319            self.__UpdateSelection()
320            #self.__FillTreeLayer(id)
321    
322      def _OnMsgMapStackingChanged(self, *args):      def _OnMsgMapStackingChanged(self, *args):
323          self.Sort()          self.Sort()
324            id = self.GetSelection()
325    
326      def _OnMsgMapLayersChanged(self, map):          if id.IsOk():
327          assert(id(map) == id(self.map))              self.EnsureVisible(id)
328            self.__UpdateSelection()
329    
330        def _OnMsgMapLayersAddedRemoved(self, map):
331            assert map is self.map
332    
333          self.__FillTree(self.map)          self.__FillTree(self.map)
334            self.__UpdateSelection()
335    
336        def _OnMsgLayerVisibilityChanged(self, layer):
337            assert isinstance(layer, Layer)
338    
339            self.__ShowHideLayer(layer)
340            self.__UpdateSelection()
341    
342        def _OnMsgLayerTitleChanged(self, layer):
343    
344            id = self.layer2id[layer]
345            if id.IsOk():
346                self.SetItemText(id, layer.Title())
347            self.__UpdateSelection()
348    
349        def __UpdateSelection(self):
350            layer, group = self.GetSelectedHierarchy()
351            self.parent.DoOnSelChanged(layer, group)
352            
353      def __FillTree(self, map):      def __FillTree(self, map):
354    
355          assert(isinstance(map, Map))          assert isinstance(map, Map)
356    
357          self.Freeze()          self.Freeze()
358    
# Line 263  class LegendTree(wxTreeCtrl): Line 379  class LegendTree(wxTreeCtrl):
379              for l in map.Layers():              for l in map.Layers():
380                  id = self.PrependItem(root, l.Title())                  id = self.PrependItem(root, l.Title())
381                  l.Subscribe(LAYER_CHANGED, self._OnMsgLayerChanged)                  l.Subscribe(LAYER_CHANGED, self._OnMsgLayerChanged)
382                    l.Subscribe(LAYER_VISIBILITY_CHANGED,
383                                self._OnMsgLayerVisibilityChanged)
384                    l.Subscribe(TITLE_CHANGED, self._OnMsgLayerTitleChanged)
385                  self.SetPyData(id, l)                  self.SetPyData(id, l)
386                  font = self.GetItemFont(id)                  self.__SetVisibilityStyle(l.Visible(), id)
                 if not l.Visible():  
                     font.SetStyle(wxITALIC)  
                     self.SetItemFont(id, font)  
387    
388                  self.layer2id[l] = id                  self.layer2id[l] = id
389    
# Line 287  class LegendTree(wxTreeCtrl): Line 403  class LegendTree(wxTreeCtrl):
403    
404          shapeType = layer.ShapeType()          shapeType = layer.ShapeType()
405    
406            show = layer.Visible()
407          for g in clazz:          for g in clazz:
408              id = self.AppendItem(pid, g.GetDisplayText())              if g.IsVisible():
409              self.SetPyData(id, g)                  id = self.AppendItem(pid, g.GetDisplayText())
410                    self.SetPyData(id, g)
411              bmp = self.__BuildGroupImage(g, shapeType)                  self.__SetVisibilityStyle(show, id)
412    
413              if bmp is None:                  bmp = self.__BuildGroupImage(g, shapeType)
414                  self.SetItemImage(id, self.emptyImageIndex)  
415              else:                  if bmp is None:
416                  i = self.image_list.Add(bmp)                      self.SetItemImage(id, self.emptyImageIndex)
417                  self.SetItemImage(id, i)                  else:
418                        i = self.image_list.Add(bmp)
419              #self.layer2id[g] = id                      self.SetItemImage(id, i)
420    
421          self.Thaw()          self.Thaw()
422    
423      def __BuildGroupImage(self, group, shapeType):      def __BuildGroupImage(self, group, shapeType):
424          assert(isinstance(group, ClassGroup))          assert isinstance(group, ClassGroup)
425    
426          bmp = wxEmptyBitmap(BMP_SIZE_W, BMP_SIZE_H)          bmp = wxEmptyBitmap(BMP_SIZE_W, BMP_SIZE_H)
427          #brush = wxBrush(Color2wxColour(item[1]), wxSOLID)          #brush = wxBrush(Color2wxColour(item[1]), wxSOLID)
# Line 317  class LegendTree(wxTreeCtrl): Line 434  class LegendTree(wxTreeCtrl):
434          return bmp          return bmp
435    
436      def __DeleteAllItems(self):      def __DeleteAllItems(self):
         self.DeleteAllItems()  
         self.layer2id = {}  
437    
438            while len(self.layer2id) > 0:
439                layer, id = self.layer2id.popitem()
440                layer.Unsubscribe(LAYER_CHANGED,
441                                  self._OnMsgLayerChanged)
442                layer.Unsubscribe(LAYER_VISIBILITY_CHANGED,
443                                  self._OnMsgLayerVisibilityChanged)
444                layer.Unsubscribe(TITLE_CHANGED, self._OnMsgLayerTitleChanged)
445    
446      def __ShowHideLayer(self, show):          self.DeleteAllItems()
         id = self.GetSelection()  
         assert(id.IsOk())  
           
         item = self.GetPyData(id)  
         if isinstance(item, ClassGroup):  
             id = self.GetItemParent(id)  
             assert(id.IsOk())  
             item = self.GetPyData(id)  
447    
448        def __SetVisibilityStyle(self, visible, id):
449            font = self.GetItemFont(id)
450    
451          if show != item.Visible():          if visible:
452                font.SetStyle(wxNORMAL)
453                color = wxBLACK
454            else:
455                font.SetStyle(wxITALIC)
456                color = wxLIGHT_GREY
457    
458              item.SetVisible(show)          self.SetItemTextColour(id, color)
459            self.SetItemFont(id, font)
460            
461        def __ShowHideLayer(self, layer):
462            parent = self.layer2id[layer]
463            assert parent.IsOk()
464    
465              font = self.GetItemFont(id)          visible = layer.Visible()
             if show:  
                 font.SetStyle(wxNORMAL)  
                 self.SetItemFont(id, font)  
             else:  
                 font.SetStyle(wxITALIC)  
                 self.SetItemFont(id, font)  
466    
467            self.__SetVisibilityStyle(visible, parent)
468    
469            id, cookie = self.GetFirstChild(parent, 123)
470    
471            while id.IsOk():
472                self.__SetVisibilityStyle(visible, id)
473                id, cookie = self.GetNextChild(parent, cookie)
474                
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