/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/legend.py
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revision 655 by jonathan, Fri Apr 11 15:50:13 2003 UTC revision 1063 by frank, Tue May 27 14:08:28 2003 UTC
# Line 1  Line 1 
1  # Copyright (c) 2001, 2002, 2003 by Intevation GmbH  # Copyright (c) 2001, 2002, 2003 by Intevation GmbH
2  # Authors:  # Authors:
3  # Jonathan Coles <[email protected]>  # Jonathan Coles <[email protected]>
4    # Frank Koormann <[email protected]>
5  #  #
6  # This program is free software under the GPL (>=v2)  # This program is free software under the GPL (>=v2)
7  # Read the file COPYING coming with Thuban for details.  # Read the file COPYING coming with Thuban for details.
# Line 13  import resource Line 14  import resource
14    
15  from wxPython.wx import *  from wxPython.wx import *
16    
17  from Thuban.Model.layer import Layer  from Thuban.Model.layer import BaseLayer
18  from Thuban.Model.map import Map  from Thuban.Model.map import Map
 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 *  from Thuban.Model.messages import \
22        MAP_STACKING_CHANGED, MAP_LAYERS_ADDED, MAP_LAYERS_REMOVED, LAYER_CHANGED,\
23        LAYER_VISIBILITY_CHANGED, TITLE_CHANGED
24    
25    from Thuban.UI.messages import SCALE_CHANGED
26    
27  from Thuban.UI.classifier import ClassDataPreviewer  from Thuban.UI.classifier import ClassDataPreviewer
28  from Thuban.UI.dock import DockPanel  from Thuban.UI.dock import DockPanel
29    from Thuban.UI.scalebar import ScaleBar
30    
31  from Thuban.Lib.connector import ConnectorError  from Thuban.Lib.connector import ConnectorError
32    
33  ID_LEGEND_RAISE = 4001  ID_LEGEND_TOP = 4001
34  ID_LEGEND_LOWER = 4002  ID_LEGEND_RAISE = 4002
35  ID_LEGEND_TREE = 4003  ID_LEGEND_LOWER = 4003
36  ID_LEGEND_PROPS = 4004  ID_LEGEND_BOTTOM = 4004
37  ID_LEGEND_SHOWLAYER = 4005  ID_LEGEND_TREE = 4005
38  ID_LEGEND_HIDELAYER = 4006  ID_LEGEND_PROPS = 4006
39    ID_LEGEND_SHOWLAYER = 4007
40    ID_LEGEND_HIDELAYER = 4008
41    
42  BMP_SIZE_W = 30  BMP_SIZE_W = 15
43  BMP_SIZE_H = 15  BMP_SIZE_H = 15
44    
45    TOP_BMP = "top_layer"
46  RAISE_BMP = "raise_layer"  RAISE_BMP = "raise_layer"
47  LOWER_BMP = "lower_layer"  LOWER_BMP = "lower_layer"
48    BOTTOM_BMP = "bottom_layer"
49  SHOW_BMP  = "show_layer"  SHOW_BMP  = "show_layer"
50  HIDE_BMP  = "hide_layer"  HIDE_BMP  = "hide_layer"
51  PROPS_BMP = "layer_properties"  PROPS_BMP = "layer_properties"
# Line 54  class LegendPanel(DockPanel): Line 64  class LegendPanel(DockPanel):
64          panelBox = wxBoxSizer(wxVERTICAL)          panelBox = wxBoxSizer(wxVERTICAL)
65    
66          self.toolBar = wxToolBar(self, -1)          self.toolBar = wxToolBar(self, -1)
67            self.toolBar.SetToolBitmapSize(wxSize(24, 24))
68    
69            bmp = resource.GetBitmapResource(TOP_BMP, wxBITMAP_TYPE_XPM)
70            self.toolBar.AddTool(ID_LEGEND_TOP, bmp,
71                shortHelpString=_("Top Layer"))
72    
73          bmp = resource.GetBitmapResource(RAISE_BMP, wxBITMAP_TYPE_XPM)          bmp = resource.GetBitmapResource(RAISE_BMP, wxBITMAP_TYPE_XPM)
74          self.toolBar.AddTool(ID_LEGEND_RAISE, bmp,          self.toolBar.AddTool(ID_LEGEND_RAISE, bmp,
# Line 63  class LegendPanel(DockPanel): Line 78  class LegendPanel(DockPanel):
78          self.toolBar.AddTool(ID_LEGEND_LOWER, bmp,          self.toolBar.AddTool(ID_LEGEND_LOWER, bmp,
79              shortHelpString=_("Lower Layer"))              shortHelpString=_("Lower Layer"))
80    
81            bmp = resource.GetBitmapResource(BOTTOM_BMP, wxBITMAP_TYPE_XPM)
82            self.toolBar.AddTool(ID_LEGEND_BOTTOM, bmp,
83                shortHelpString=_("Bottom Layer"))
84    
85          bmp = resource.GetBitmapResource(SHOW_BMP, wxBITMAP_TYPE_XPM)          bmp = resource.GetBitmapResource(SHOW_BMP, wxBITMAP_TYPE_XPM)
86          self.toolBar.AddTool(ID_LEGEND_SHOWLAYER, bmp,          self.toolBar.AddTool(ID_LEGEND_SHOWLAYER, bmp,
87              shortHelpString=_("Show Layer"))              shortHelpString=_("Show Layer"))
# Line 76  class LegendPanel(DockPanel): Line 95  class LegendPanel(DockPanel):
95              shortHelpString=_("Edit Layer Properties"))              shortHelpString=_("Edit Layer Properties"))
96    
97          self.toolBar.Realize()          self.toolBar.Realize()
98          panelBox.Add(self.toolBar, 0, wxALL, 0)          panelBox.Add(self.toolBar, 0, wxGROW, 0)
99    
100            EVT_TOOL(self, ID_LEGEND_TOP, self._OnMoveTop)
101          EVT_TOOL(self, ID_LEGEND_RAISE, self._OnMoveUp)          EVT_TOOL(self, ID_LEGEND_RAISE, self._OnMoveUp)
102          EVT_TOOL(self, ID_LEGEND_LOWER, self._OnMoveDown)          EVT_TOOL(self, ID_LEGEND_LOWER, self._OnMoveDown)
103            EVT_TOOL(self, ID_LEGEND_BOTTOM, self._OnMoveBottom)
104          EVT_TOOL(self, ID_LEGEND_PROPS, self._OnProperties)          EVT_TOOL(self, ID_LEGEND_PROPS, self._OnProperties)
105          EVT_TOOL(self, ID_LEGEND_SHOWLAYER, self._OnShowLayer)          EVT_TOOL(self, ID_LEGEND_SHOWLAYER, self._OnShowLayer)
106          EVT_TOOL(self, ID_LEGEND_HIDELAYER, self._OnHideLayer)          EVT_TOOL(self, ID_LEGEND_HIDELAYER, self._OnHideLayer)
107    
108          self.tree = LegendTree(self, ID_LEGEND_TREE, map, mainWindow)          self.tree = LegendTree(self, ID_LEGEND_TREE, map, mainWindow)
109    
110          panelBox.Add(self.tree, 1, wxGROW, 4)          panelBox.Add(self.tree, 1, wxGROW, 0)
111    
112          panelBox.Fit(self)          self.scalebarbitmap = ScaleBarBitmap(self, map, mainWindow)
113            panelBox.Add(self.scalebarbitmap, 0, wxGROW, 0)
114    
115          self.SetAutoLayout(True)          self.SetAutoLayout(True)
116          self.SetSizer(panelBox)          self.SetSizer(panelBox)
117          panelBox.SetSizeHints(self)          panelBox.SetSizeHints(self)
118    
119    
120          self.panelBox = panelBox          self.panelBox = panelBox
121    
122          self.__EnableButtons(False)          self.__EnableButtons(False)
123    
124            self.Create()
125    
126          EVT_CLOSE(self, self._OnClose)          EVT_CLOSE(self, self._OnClose)
127    
128    
# Line 106  class LegendPanel(DockPanel): Line 131  class LegendPanel(DockPanel):
131    
132      def SetMap(self, map):      def SetMap(self, map):
133          self.tree.SetMap(map)          self.tree.SetMap(map)
134            self.scalebarbitmap.SetCanvas(self.mainWindow.canvas)
135    
136      def DoOnSelChanged(self, layer, group):      def DoOnSelChanged(self, layer, group):
137    
138          ok = isinstance(layer, Layer)          ok = isinstance(layer, BaseLayer)
139          self.__EnableButtons(ok)          self.__EnableButtons(ok)
140    
141          self.mainWindow.SelectLayer(layer)          self.mainWindow.SelectLayer(layer)
# Line 117  class LegendPanel(DockPanel): Line 143  class LegendPanel(DockPanel):
143      def DoOnProperties(self):      def DoOnProperties(self):
144          list = self.tree.GetSelectedHierarchy()          list = self.tree.GetSelectedHierarchy()
145    
146          ok = isinstance(list[0], Layer)          ok = isinstance(list[0], BaseLayer)
147          if ok:          if ok:
148              self.mainWindow.OpenLayerProperties(list[0], list[1])              self.mainWindow.OpenLayerProperties(list[0], list[1])
149    
# Line 127  class LegendPanel(DockPanel): Line 153  class LegendPanel(DockPanel):
153      def _OnProperties(self, event):      def _OnProperties(self, event):
154          self.DoOnProperties()          self.DoOnProperties()
155    
156        def _OnMoveTop(self, event):
157            self.tree.MoveCurrentItemTop()
158            
159      def _OnMoveUp(self, event):      def _OnMoveUp(self, event):
160          self.tree.MoveCurrentItemUp()          self.tree.MoveCurrentItemUp()
161    
162      def _OnMoveDown(self, event):      def _OnMoveDown(self, event):
163          self.tree.MoveCurrentItemDown()          self.tree.MoveCurrentItemDown()
164    
165        def _OnMoveBottom(self, event):
166            self.tree.MoveCurrentItemBottom()
167    
168      def _OnShowLayer(self, event):      def _OnShowLayer(self, event):
169          self.tree.DoOnShowLayer()          self.tree.DoOnShowLayer()
170          pass          pass
# Line 148  class LegendPanel(DockPanel): Line 180  class LegendPanel(DockPanel):
180          pass          pass
181    
182      def __EnableButtons(self, on):      def __EnableButtons(self, on):
183            self.toolBar.EnableTool(ID_LEGEND_TOP, on)
184          self.toolBar.EnableTool(ID_LEGEND_RAISE, on)          self.toolBar.EnableTool(ID_LEGEND_RAISE, on)
185          self.toolBar.EnableTool(ID_LEGEND_LOWER, on)          self.toolBar.EnableTool(ID_LEGEND_LOWER, on)
186            self.toolBar.EnableTool(ID_LEGEND_BOTTOM, on)
187          self.toolBar.EnableTool(ID_LEGEND_SHOWLAYER,  on)          self.toolBar.EnableTool(ID_LEGEND_SHOWLAYER,  on)
188          self.toolBar.EnableTool(ID_LEGEND_HIDELAYER,  on)          self.toolBar.EnableTool(ID_LEGEND_HIDELAYER,  on)
189          self.toolBar.EnableTool(ID_LEGEND_PROPS, on)          self.toolBar.EnableTool(ID_LEGEND_PROPS, on)
# Line 214  class LegendTree(wxTreeCtrl): Line 248  class LegendTree(wxTreeCtrl):
248                  #self._OnMsgMapsChanged)                  #self._OnMsgMapsChanged)
249              self.__FillTree(self.map)              self.__FillTree(self.map)
250    
251                    def MoveCurrentItemTop(self):
252      def MoveCurrentItemUp(self):          layer, group = self.GetSelectedHierarchy()
         cur_id = self.GetSelection()  
         assert cur_id.IsOk()  
   
         cur_data = self.GetPyData(cur_id)  
253    
254          #prev_id = self.GetPrevSibling(cur_id)          if layer is not None:
255                self.map.TopLayer(layer)
256            else:
257                assert False, "Shouldn't be allowed."
258                pass
259    
260          #      def MoveCurrentItemUp(self):
261          # Get out if there's nowhere to go          layer, group = self.GetSelectedHierarchy()
         #  
         #if prev_id == INVALID_TREE_ID: return  
262    
263          if isinstance(cur_data, Layer):          if layer is not None:
264              self.map.RaiseLayer(cur_data)              self.map.RaiseLayer(layer)
         elif isinstance(cur_data, ClassGroup):  
             pass  
265          else:          else:
266              assert False, "Shouldn't be here."              assert False, "Shouldn't be allowed."
267              pass              pass
268    
269      def MoveCurrentItemDown(self):      def MoveCurrentItemDown(self):
270          cur_id = self.GetSelection()          layer, group = self.GetSelectedHierarchy()
         assert cur_id.IsOk()  
   
         cur_data = self.GetPyData(cur_id)  
271    
272          if isinstance(cur_data, Layer):          if layer is not None:
273              self.map.LowerLayer(cur_data)              self.map.LowerLayer(layer)
         elif isinstance(cur_data, ClassGroup):  
             pass  
274          else:          else:
275              assert False, "Shouldn't be here."              assert False, "Shouldn't be allowed."
276              pass              pass
277    
278        def MoveCurrentItemBottom(self):
279            layer, group = self.GetSelectedHierarchy()
280    
281            if layer is not None:
282                self.map.BottomLayer(layer)
283            else:
284                assert False, "Shouldn't be allowed."
285                pass
286    
287      def OnCompareItems(self, item1, item2):      def OnCompareItems(self, item1, item2):
288    
289          data1 = self.GetPyData(item1)          data1 = self.GetPyData(item1)
290          data2 = self.GetPyData(item2)          data2 = self.GetPyData(item2)
291    
292          if isinstance(data1, Layer):          if isinstance(data1, BaseLayer):
293              layers = self.map.Layers()              layers = self.map.Layers()
294              return layers.index(data2) - layers.index(data1)              return layers.index(data2) - layers.index(data1)
295          else:          else:
296              return wxTreeCtrl.OnCompareItems(self, item1, item2)              return wxTreeCtrl.OnCompareItems(self, item1, item2)
297    
   
298      def DoOnShowLayer(self):      def DoOnShowLayer(self):
299          #self.__ShowHideLayer(True)          #self.__ShowHideLayer(True)
300          layer, group = self.GetSelectedHierarchy()          layer, group = self.GetSelectedHierarchy()
# Line 304  class LegendTree(wxTreeCtrl): Line 336  class LegendTree(wxTreeCtrl):
336          self.parent.DoOnProperties()          self.parent.DoOnProperties()
337    
338      def _OnMsgLayerChanged(self, layer):      def _OnMsgLayerChanged(self, layer):
339          assert isinstance(layer, Layer)          assert isinstance(layer, BaseLayer)
340    
341          id = self.layer2id[layer]          id = self.layer2id[layer]
342          assert id.IsOk()          assert id.IsOk()
# Line 332  class LegendTree(wxTreeCtrl): Line 364  class LegendTree(wxTreeCtrl):
364          self.__UpdateSelection()          self.__UpdateSelection()
365    
366      def _OnMsgLayerVisibilityChanged(self, layer):      def _OnMsgLayerVisibilityChanged(self, layer):
367          assert isinstance(layer, Layer)          assert isinstance(layer, BaseLayer)
368    
369          self.__ShowHideLayer(layer)          self.__ShowHideLayer(layer)
370          self.__UpdateSelection()          self.__UpdateSelection()
# Line 350  class LegendTree(wxTreeCtrl): Line 382  class LegendTree(wxTreeCtrl):
382                    
383      def __FillTree(self, map):      def __FillTree(self, map):
384    
         assert isinstance(map, Map)  
   
385          self.Freeze()          self.Freeze()
386    
387          self.__DeleteAllItems()          self.__DeleteAllItems()
# Line 370  class LegendTree(wxTreeCtrl): Line 400  class LegendTree(wxTreeCtrl):
400              self.emptyImageIndex = \              self.emptyImageIndex = \
401                  self.image_list.AddWithColourMask(bmp, wxColour(0, 0, 0))                  self.image_list.AddWithColourMask(bmp, wxColour(0, 0, 0))
402                                                                                                                                                                    
403                bmp = resource.GetBitmapResource("legend_icon_layer",
404                                                  wxBITMAP_TYPE_XPM)
405                self.mapImageIndex = \
406                    self.image_list.Add(bmp)
407    
408              self.AssignImageList(self.image_list)              self.AssignImageList(self.image_list)
409    
410              root = self.AddRoot("")              root = self.AddRoot("")
411    
412              for l in map.Layers():              for l in map.Layers():
413                  id = self.PrependItem(root, l.Title())                  id = self.PrependItem(root, l.Title())
414                    self.SetItemImage(id, self.mapImageIndex)
415                    self.SetItemSelectedImage(id, self.mapImageIndex)
416    
417                  l.Subscribe(LAYER_CHANGED, self._OnMsgLayerChanged)                  l.Subscribe(LAYER_CHANGED, self._OnMsgLayerChanged)
418                  l.Subscribe(LAYER_VISIBILITY_CHANGED,                  l.Subscribe(LAYER_VISIBILITY_CHANGED,
419                              self._OnMsgLayerVisibilityChanged)                              self._OnMsgLayerVisibilityChanged)
# Line 397  class LegendTree(wxTreeCtrl): Line 435  class LegendTree(wxTreeCtrl):
435    
436          self.DeleteChildren(pid)          self.DeleteChildren(pid)
437    
438          clazz = layer.GetClassification()          if layer.HasClassification():
439    
440                clazz = layer.GetClassification()
441    
442          shapeType = layer.ShapeType()              shapeType = layer.ShapeType()
443    
444          show = layer.Visible()              show = layer.Visible()
445          for g in clazz:              for g in clazz:
446              if g.IsVisible():                  if g.IsVisible():
447                  id = self.AppendItem(pid, g.GetDisplayText())                      id = self.AppendItem(pid, g.GetDisplayText())
448                  self.SetPyData(id, g)                      self.SetPyData(id, g)
449                  self.__SetVisibilityStyle(show, id)                      self.__SetVisibilityStyle(show, id)
450    
451                  bmp = self.__BuildGroupImage(g, shapeType)                      bmp = self.__BuildGroupImage(g, shapeType)
452    
453                  if bmp is None:                      if bmp is None:
454                      self.SetItemImage(id, self.emptyImageIndex)                          self.SetItemImage(id, -1)
455                  else:                          self.SetItemSelectedImage(id, -1)
456                      i = self.image_list.Add(bmp)                      else:
457                      self.SetItemImage(id, i)                          i = self.image_list.Add(bmp)
458                            self.SetItemImage(id, i)
459                            self.SetItemSelectedImage(id, i)
460    
461          self.Thaw()          self.Thaw()
462    
463      def __BuildGroupImage(self, group, shapeType):      def __BuildGroupImage(self, group, shapeType):
         assert isinstance(group, ClassGroup)  
464    
465          bmp = wxEmptyBitmap(BMP_SIZE_W, BMP_SIZE_H)          bmp = wxEmptyBitmap(BMP_SIZE_W, BMP_SIZE_H)
466          #brush = wxBrush(Color2wxColour(item[1]), wxSOLID)          #brush = wxBrush(Color2wxColour(item[1]), wxSOLID)
# Line 450  class LegendTree(wxTreeCtrl): Line 491  class LegendTree(wxTreeCtrl):
491              font.SetStyle(wxNORMAL)              font.SetStyle(wxNORMAL)
492              color = wxBLACK              color = wxBLACK
493          else:          else:
494              font.SetStyle(wxITALIC)              #font.SetStyle(wxITALIC)
495                font.SetStyle(wxNORMAL)
496              color = wxLIGHT_GREY              color = wxLIGHT_GREY
497    
498          self.SetItemTextColour(id, color)          self.SetItemTextColour(id, color)
# Line 470  class LegendTree(wxTreeCtrl): Line 512  class LegendTree(wxTreeCtrl):
512              self.__SetVisibilityStyle(visible, id)              self.__SetVisibilityStyle(visible, id)
513              id, cookie = self.GetNextChild(parent, cookie)              id, cookie = self.GetNextChild(parent, cookie)
514                            
515    class ScaleBarBitmap(wxBoxSizer):
516    
517        def __init__(self, parent, map, mainWindow):
518            # While the width is fixed, get the height _now_.
519            dc = wxMemoryDC()
520            textwidth, textheight = dc.GetTextExtent("%d"%0)
521            self.width = 210
522            self.height = textheight + 3*2 + 8
523    
524            wxBoxSizer.__init__(self, wxVERTICAL)
525            bmp=wxEmptyBitmap(self.width, self.height)
526            self.scalebarBitmap = wxStaticBitmap(parent, -1, bmp)
527            self.Add(self.scalebarBitmap, 0, wxALIGN_CENTER|wxLEFT|wxTOP|wxRIGHT, 1)
528    
529            self.mainWindow = mainWindow
530            self.parent = parent
531            self.canvas = None
532            self.SetCanvas(self.mainWindow.canvas)
533    
534        def SetCanvas(self, canvas):
535            sub_list = [(SCALE_CHANGED, self._OnMsgScaleChanged)]
536    
537            if self.canvas is not None:
538                for msg, func in sub_list: self.canvas.Unsubscribe(msg, func)
539            
540            self.canvas = canvas
541            self.scalebar = ScaleBar(canvas.map)
542    
543            if self.canvas is not None:
544                for msg, func in sub_list: self.canvas.Subscribe(msg, func)
545                self.__SetScale(self.canvas.scale)
546    
547        def _OnMsgScaleChanged(self, scale):
548            self.__SetScale(scale)
549    
550        def __SetScale(self, scale):
551            bmp = wxEmptyBitmap(self.width, self.height)
552            dc = wxMemoryDC()
553            dc.SelectObject(bmp)
554            dc.Clear()
555    
556            self.scalebar.DrawScaleBar(scale, dc, (0,0), dc.GetSizeTuple())
557    
558            self.scalebarBitmap.SetBitmap(bmp)
559    
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