/[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 652 by jonathan, Fri Apr 11 14:28:08 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    
58          self.buttons = []          bmp = resource.GetBitmapResource(RAISE_BMP, wxBITMAP_TYPE_XPM)
59            self.toolBar.AddTool(ID_LEGEND_RAISE, bmp,
60                shortHelpString=_("Raise Layer"))
61    
62            bmp = resource.GetBitmapResource(LOWER_BMP, wxBITMAP_TYPE_XPM)
63            self.toolBar.AddTool(ID_LEGEND_LOWER, bmp,
64                shortHelpString=_("Lower Layer"))
65    
66            bmp = resource.GetBitmapResource(SHOW_BMP, wxBITMAP_TYPE_XPM)
67            self.toolBar.AddTool(ID_LEGEND_SHOWLAYER, bmp,
68                shortHelpString=_("Show Layer"))
69    
70            bmp = resource.GetBitmapResource(HIDE_BMP, wxBITMAP_TYPE_XPM)
71            self.toolBar.AddTool(ID_LEGEND_HIDELAYER, bmp,
72                shortHelpString=_("Hide Layer"))
73    
74            bmp = resource.GetBitmapResource(PROPS_BMP, wxBITMAP_TYPE_XPM)
75            self.toolBar.AddTool(ID_LEGEND_PROPS, bmp,
76                shortHelpString=_("Edit Layer Properties"))
77    
78            self.toolBar.Realize()
79            panelBox.Add(self.toolBar, 0, wxALL, 0)
80    
81            EVT_TOOL(self, ID_LEGEND_RAISE, self._OnMoveUp)
82            EVT_TOOL(self, ID_LEGEND_LOWER, self._OnMoveDown)
83            EVT_TOOL(self, ID_LEGEND_PROPS, self._OnProperties)
84            EVT_TOOL(self, ID_LEGEND_SHOWLAYER, self._OnShowLayer)
85            EVT_TOOL(self, ID_LEGEND_HIDELAYER, self._OnHideLayer)
86    
87            self.tree = LegendTree(self, ID_LEGEND_TREE, map, mainWindow)
88    
89          button = wxButton(self, ID_LEGEND_MOVEUP, _("Move Up"))          panelBox.Add(self.tree, 1, wxGROW, 4)
         buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)  
         self.buttons.append(button)  
90    
91          button = wxButton(self, ID_LEGEND_SHOWLAYER, _("Show Layer"))          panelBox.Fit(self)
         buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)  
         self.buttons.append(button)  
92    
93          button = wxButton(self, ID_LEGEND_CLASSIFY, _("Classify"))          self.SetAutoLayout(True)
94          buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)          self.SetSizer(panelBox)
95          self.buttons.append(button)          panelBox.SetSizeHints(self)
96    
97          button = wxButton(self, ID_LEGEND_MOVEDOWN, _("Move Down"))          self.panelBox = panelBox
         buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)  
         self.buttons.append(button)  
98    
99          button = wxButton(self, ID_LEGEND_HIDELAYER, _("Hide Layer"))          self.__EnableButtons(False)
         buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)  
         self.buttons.append(button)  
100    
101            EVT_CLOSE(self, self._OnClose)
102    
         EVT_BUTTON(self, ID_LEGEND_MOVEUP, self._OnMoveUp)  
         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)  
103    
104          panelBox.Add(buttonBox, 0, 0, 4)      def GetMap(self):
105            return self.tree.GetMap()
106    
107          self.tree = LegendTree(self, ID_LEGEND_TREE, map)      def SetMap(self, map):
108            self.tree.SetMap(map)
109    
110          panelBox.Add(self.tree, 1, wxGROW, 4)      def DoOnSelChanged(self, layer, group):
111    
112          panel.SetAutoLayout(True)          ok = isinstance(layer, Layer)
113          panel.SetSizer(panelBox)          self.__EnableButtons(ok)
         panelBox.SetSizeHints(panel)  
114    
115          topBox.Add(panel, 1, wxGROW, 0)          if ok:
116          panelBox.SetSizeHints(self)              self.mainWindow.SelectLayer(layer)
117    
118          self.SetAutoLayout(True)      def DoOnProperties(self):
119          self.SetSizer(topBox)          list = self.tree.GetSelectedHierarchy()
120    
121            ok = isinstance(list[0], Layer)
122            if ok:
123                self.mainWindow.OpenLayerProperties(list[0], list[1])
124    
125      def DoOnSelChanged(self):      def Destroy(self):
126          self.__EnableButtons(self.tree.GetSelection().IsOk())          self.__Close()
127    
128      def _OnClassify(self, event):      def _OnProperties(self, event):
129          self.tree.DoOnClassify()          self.DoOnProperties()
130    
131      def _OnMoveUp(self, event):      def _OnMoveUp(self, event):
132          self.tree.MoveCurrentItemUp()          self.tree.MoveCurrentItemUp()
# Line 109  class Legend(NonModalDialog): Line 138  class Legend(NonModalDialog):
138          self.tree.DoOnShowLayer()          self.tree.DoOnShowLayer()
139          pass          pass
140    
141        #def Close(self, force = False):
142            #DockPanel.Close(self, force)
143            
144        def _OnClose(self, event):
145            self.__Close()
146    
147      def _OnHideLayer(self, event):      def _OnHideLayer(self, event):
148          self.tree.DoOnHideLayer()          self.tree.DoOnHideLayer()
149          pass          pass
150    
   
151      def __EnableButtons(self, on):      def __EnableButtons(self, on):
152          for b in self.buttons:          self.toolBar.EnableTool(ID_LEGEND_RAISE, on)
153              b.Enable(on)          self.toolBar.EnableTool(ID_LEGEND_LOWER, on)
154            self.toolBar.EnableTool(ID_LEGEND_SHOWLAYER,  on)
155            self.toolBar.EnableTool(ID_LEGEND_HIDELAYER,  on)
156            self.toolBar.EnableTool(ID_LEGEND_PROPS, on)
157    
158        def __Close(self):
159            self.tree.Close()
160    
161  class LegendTree(wxTreeCtrl):  class LegendTree(wxTreeCtrl):
162    
163      def __init__(self, parent, id, map):      def __init__(self, parent, id, map, mainWindow):
164          wxTreeCtrl.__init__(self, parent, id,          wxTreeCtrl.__init__(self, parent, id,
165                              style = wxTR_DEFAULT_STYLE | wxTR_HIDE_ROOT,                              style = wxTR_DEFAULT_STYLE | wxTR_HIDE_ROOT,
166                              size = (200, 200))                              size = (200, 200))
167    
168            self.mainWindow = mainWindow
169            self.map = None
170          self.parent = parent          self.parent = parent
171          self.map = map          self.layer2id = {}
         self.layer2id = None  
   
172    
173          self.image_list = None          self.image_list = None
174          self.emptyImageIndex = 0          self.emptyImageIndex = 0
175    
176          self.previewer = ClassDataPreviewer()          self.previewer = ClassDataPreviewer()
177    
   
178          EVT_TREE_ITEM_ACTIVATED(self, ID_LEGEND_TREE, self._OnItemActivated)          EVT_TREE_ITEM_ACTIVATED(self, ID_LEGEND_TREE, self._OnItemActivated)
179          EVT_TREE_SEL_CHANGED(self, ID_LEGEND_TREE, self._OnSelChanged)          EVT_TREE_SEL_CHANGED(self, ID_LEGEND_TREE, self._OnSelChanged)
180    
181          map.Subscribe(MAP_STACKING_CHANGED, self._OnMsgMapStackingChanged)          EVT_CLOSE(self, self._OnClose)
         map.Subscribe(MAP_LAYERS_CHANGED, self._OnMsgMapLayersChanged)  
182    
183          self.__FillTree(map)          self.SetMap(map)
184    
185        def _OnClose(self, event):
186            self.SetMap(None)
187    
188        def GetMap(self):
189            return self.map
190    
191        def SetMap(self, map):
192    
193            sub_list = [(MAP_STACKING_CHANGED, self._OnMsgMapStackingChanged),
194                        (MAP_LAYERS_ADDED, self._OnMsgMapLayersAddedRemoved),
195                        (MAP_LAYERS_REMOVED, self._OnMsgMapLayersAddedRemoved)]
196    
197            if self.map is not None:
198                for msg, func in sub_list: self.map.Unsubscribe(msg, func)
199                #self.mainWindow.application.Unsubscribe(SESSION_REPLACED,
200                    #self._OnMsgMapsChanged)
201                #try:
202                    #self.mainWindow.application.session.Unsubscribe(MAPS_CHANGED,
203                        #self._OnMsgMapsChanged)
204                #except ConnectorError:
205                    #pass
206                self.__DeleteAllItems()
207            
208            self.map = map
209    
210            if self.map is not None:
211                for msg, func in sub_list: self.map.Subscribe(msg, func)
212                #self.mainWindow.application.session.Subscribe(MAPS_CHANGED,
213                    #self._OnMsgMapsChanged)
214                #self.mainWindow.application.Subscribe(SESSION_REPLACED,
215                    #self._OnMsgMapsChanged)
216                self.__FillTree(self.map)
217    
218                
219      def MoveCurrentItemUp(self):      def MoveCurrentItemUp(self):
220          cur_id = self.GetSelection()          cur_id = self.GetSelection()
221          assert(cur_id.IsOk())          assert cur_id.IsOk()
222    
223          cur_data = self.GetPyData(cur_id)          cur_data = self.GetPyData(cur_id)
224    
# Line 162  class LegendTree(wxTreeCtrl): Line 234  class LegendTree(wxTreeCtrl):
234          elif isinstance(cur_data, ClassGroup):          elif isinstance(cur_data, ClassGroup):
235              pass              pass
236          else:          else:
237              assert(False, "Shouldn't be here.")              assert False, "Shouldn't be here."
238              pass              pass
239    
240      def MoveCurrentItemDown(self):      def MoveCurrentItemDown(self):
241          cur_id = self.GetSelection()          cur_id = self.GetSelection()
242          assert(cur_id.IsOk())          assert cur_id.IsOk()
243    
244          cur_data = self.GetPyData(cur_id)          cur_data = self.GetPyData(cur_id)
245    
# Line 176  class LegendTree(wxTreeCtrl): Line 248  class LegendTree(wxTreeCtrl):
248          elif isinstance(cur_data, ClassGroup):          elif isinstance(cur_data, ClassGroup):
249              pass              pass
250          else:          else:
251              assert(False, "Shouldn't be here.")              assert False, "Shouldn't be here."
252              pass              pass
253    
254    
# Line 193  class LegendTree(wxTreeCtrl): Line 265  class LegendTree(wxTreeCtrl):
265    
266    
267      def DoOnShowLayer(self):      def DoOnShowLayer(self):
268          self.__ShowHideLayer(True)          #self.__ShowHideLayer(True)
269            layer, group = self.GetSelectedHierarchy()
270            layer.SetVisible(True)
271    
272      def DoOnHideLayer(self):      def DoOnHideLayer(self):
273          self.__ShowHideLayer(False)          #self.__ShowHideLayer(False)
274            layer, group = self.GetSelectedHierarchy()
275      def DoOnClassify(self):          layer.SetVisible(False)
         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)  
   
         self.parent.parent.OpenClassifier(item)  
276    
277      def Sort(self):      def Sort(self):
278          self.SortChildren(self.GetRootItem())          self.SortChildren(self.GetRootItem())
279    
280        def _OnMsgMapsChanged(self):
281            #print self.map is self.mainWindow.Map()
282            self.SetMap(self.mainWindow.Map())
283            
284      def _OnSelChanged(self, event):      def _OnSelChanged(self, event):
285          self.parent.DoOnSelChanged()  
286            layer, group = self.GetSelectedHierarchy()
287            self.parent.DoOnSelChanged(layer, group)
288    
289      def _OnItemActivated(self, event):      def _OnItemActivated(self, event):
290          self.DoOnClassify()          self.parent.DoOnProperties()
291    
292      def _OnMsgLayerChanged(self, layer):      def _OnMsgLayerChanged(self, layer):
293          assert(isinstance(layer, Layer))          assert isinstance(layer, Layer)
294    
295          id = self.layer2id[layer]          id = self.layer2id[layer]
296            assert id.IsOk()
297    
298          self.__FillTreeLayer(id)          # XXX: yikes! this is so bad, we should be doing what is
299            #      commented out, but there is a problem with keeping
300            #      track of the images in the image list when we replace
301            #      a layer. it ends up causing a seg fault.
302            self.__FillTree(self.map)
303            #self.__FillTreeLayer(id)
304    
305      def _OnMsgMapStackingChanged(self, *args):      def _OnMsgMapStackingChanged(self, *args):
306          self.Sort()          self.Sort()
307            id = self.GetSelection()
308    
309            if id.IsOk():
310                self.EnsureVisible(id)
311    
312      def _OnMsgMapLayersChanged(self, map):      def _OnMsgMapLayersAddedRemoved(self, map):
313          assert(id(map) == id(self.map))          assert map is self.map
314    
315          self.__FillTree(self.map)          self.__FillTree(self.map)
316    
317        def _OnMsgLayerVisibilityChanged(self, layer):
318            assert isinstance(layer, Layer)
319    
320            self.__ShowHideLayer(layer)
321    
322        def _OnMsgLayerTitleChanged(self, layer):
323    
324            id = self.layer2id[layer]
325            if id.IsOk():
326                self.SetItemText(id, layer.Title())
327    
328        def GetSelectedHierarchy(self):
329            id = self.GetSelection()
330            assert id.IsOk()
331    
332            layer = self.GetPyData(id)
333            group = None
334    
335            if isinstance(layer, ClassGroup):
336                id = self.GetItemParent(id)
337                assert id.IsOk()
338                group = layer
339                layer = self.GetPyData(id)
340    
341            return (layer, group)
342    
343      def __FillTree(self, map):      def __FillTree(self, map):
344    
345          assert(isinstance(map, Map))          assert isinstance(map, Map)
346    
347          self.Freeze()          self.Freeze()
348    
# Line 263  class LegendTree(wxTreeCtrl): Line 369  class LegendTree(wxTreeCtrl):
369              for l in map.Layers():              for l in map.Layers():
370                  id = self.PrependItem(root, l.Title())                  id = self.PrependItem(root, l.Title())
371                  l.Subscribe(LAYER_CHANGED, self._OnMsgLayerChanged)                  l.Subscribe(LAYER_CHANGED, self._OnMsgLayerChanged)
372                    l.Subscribe(LAYER_VISIBILITY_CHANGED,
373                                self._OnMsgLayerVisibilityChanged)
374                    l.Subscribe(TITLE_CHANGED, self._OnMsgLayerTitleChanged)
375                  self.SetPyData(id, l)                  self.SetPyData(id, l)
376                  font = self.GetItemFont(id)                  self.__SetVisibilityStyle(l.Visible(), id)
                 if not l.Visible():  
                     font.SetStyle(wxITALIC)  
                     self.SetItemFont(id, font)  
377    
378                  self.layer2id[l] = id                  self.layer2id[l] = id
379    
# Line 287  class LegendTree(wxTreeCtrl): Line 393  class LegendTree(wxTreeCtrl):
393    
394          shapeType = layer.ShapeType()          shapeType = layer.ShapeType()
395    
396            show = layer.Visible()
397          for g in clazz:          for g in clazz:
398              id = self.AppendItem(pid, g.GetDisplayText())              if g.IsVisible():
399              self.SetPyData(id, g)                  id = self.AppendItem(pid, g.GetDisplayText())
400                    self.SetPyData(id, g)
401              bmp = self.__BuildGroupImage(g, shapeType)                  self.__SetVisibilityStyle(show, id)
402    
403              if bmp is None:                  bmp = self.__BuildGroupImage(g, shapeType)
404                  self.SetItemImage(id, self.emptyImageIndex)  
405              else:                  if bmp is None:
406                  i = self.image_list.Add(bmp)                      self.SetItemImage(id, self.emptyImageIndex)
407                  self.SetItemImage(id, i)                  else:
408                        i = self.image_list.Add(bmp)
409              #self.layer2id[g] = id                      self.SetItemImage(id, i)
410    
411          self.Thaw()          self.Thaw()
412    
413      def __BuildGroupImage(self, group, shapeType):      def __BuildGroupImage(self, group, shapeType):
414          assert(isinstance(group, ClassGroup))          assert isinstance(group, ClassGroup)
415    
416          bmp = wxEmptyBitmap(BMP_SIZE_W, BMP_SIZE_H)          bmp = wxEmptyBitmap(BMP_SIZE_W, BMP_SIZE_H)
417          #brush = wxBrush(Color2wxColour(item[1]), wxSOLID)          #brush = wxBrush(Color2wxColour(item[1]), wxSOLID)
# Line 317  class LegendTree(wxTreeCtrl): Line 424  class LegendTree(wxTreeCtrl):
424          return bmp          return bmp
425    
426      def __DeleteAllItems(self):      def __DeleteAllItems(self):
         self.DeleteAllItems()  
         self.layer2id = {}  
427    
428            while len(self.layer2id) > 0:
429                layer, id = self.layer2id.popitem()
430                layer.Unsubscribe(LAYER_CHANGED,
431                                  self._OnMsgLayerChanged)
432                layer.Unsubscribe(LAYER_VISIBILITY_CHANGED,
433                                  self._OnMsgLayerVisibilityChanged)
434                layer.Unsubscribe(TITLE_CHANGED, self._OnMsgLayerTitleChanged)
435    
436      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)  
437    
438        def __SetVisibilityStyle(self, visible, id):
439            font = self.GetItemFont(id)
440    
441          if show != item.Visible():          if visible:
442                font.SetStyle(wxNORMAL)
443                color = wxBLACK
444            else:
445                font.SetStyle(wxITALIC)
446                color = wxLIGHT_GREY
447    
448              item.SetVisible(show)          self.SetItemTextColour(id, color)
449            self.SetItemFont(id, font)
450            
451        def __ShowHideLayer(self, layer):
452            parent = self.layer2id[layer]
453            assert parent.IsOk()
454    
455              font = self.GetItemFont(id)          visible = layer.Visible()
             if show:  
                 font.SetStyle(wxNORMAL)  
                 self.SetItemFont(id, font)  
             else:  
                 font.SetStyle(wxITALIC)  
                 self.SetItemFont(id, font)  
456    
457            self.__SetVisibilityStyle(visible, parent)
458    
459            id, cookie = self.GetFirstChild(parent, 123)
460    
461            while id.IsOk():
462                self.__SetVisibilityStyle(visible, id)
463                id, cookie = self.GetNextChild(parent, cookie)
464                
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