Thuban/UI/legend.py

# Copyright (c) 2001, 2002, 2003 by Intevation GmbH
# Authors:
# Jonathan Coles <[email protected]>
#
# This program is free software under the GPL (>=v2)
# Read the file COPYING coming with Thuban for details.

__version__ = "$Revision$"

from Thuban import _

from wxPython.wx import *

from Thuban.Model.layer import Layer
from Thuban.Model.map import Map
from Thuban.Model.messages import *
from Thuban.Model.classification import ClassGroup

from Thuban.UI.messages import *
from Thuban.UI.classifier import ClassDataPreviewer
from Thuban.UI.dock import DockPanel

from Thuban.Lib.connector import ConnectorError

ID_LEGEND_MOVEUP = 4001
ID_LEGEND_MOVEDOWN = 4002
ID_LEGEND_TREE = 4003
ID_LEGEND_CLASSIFY = 4004
ID_LEGEND_SHOWLAYER = 4005
ID_LEGEND_HIDELAYER = 4006

BMP_SIZE_W = 30
BMP_SIZE_H = 15

class LegendPanel(DockPanel):

    def __init__(self, parent, map, mainWindow): 
        DockPanel.__init__(self, parent, -1)

        self.mainWindow = mainWindow
        self.parent = parent

        panelBox = wxBoxSizer(wxVERTICAL)

        buttonBox = wxGridSizer(2, 3, 0, 0)

        self.buttons = []

        button = wxButton(self, ID_LEGEND_MOVEUP, _("Move Up"))
        buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)
        self.buttons.append(button)

        button = wxButton(self, ID_LEGEND_SHOWLAYER, _("Show Layer"))
        buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)
        self.buttons.append(button)

        button = wxButton(self, ID_LEGEND_CLASSIFY, _("Classify"))
        buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)
        self.buttons.append(button)

        button = wxButton(self, ID_LEGEND_MOVEDOWN, _("Move Down"))
        buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)
        self.buttons.append(button)

        button = wxButton(self, ID_LEGEND_HIDELAYER, _("Hide Layer"))
        buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0)
        self.buttons.append(button)

        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)

        panelBox.Add(buttonBox, 0, 0, 4)

        self.tree = LegendTree(self, ID_LEGEND_TREE, map, mainWindow)

        panelBox.Add(self.tree, 1, wxGROW, 4)

        panelBox.Fit(self)

        self.SetAutoLayout(True)
        self.SetSizer(panelBox)
        panelBox.SetSizeHints(self)

        #panelBox.SetSizeHints(self.parent)

        self.panelBox = panelBox

        EVT_CLOSE(self, self._OnClose)


    def GetMap(self):
        return self.tree.GetMap()

    def SetMap(self, map):
        self.tree.SetMap(map)

    def DoOnSelChanged(self, layer, group):

        ok = isinstance(layer, Layer)
        self.__EnableButtons(ok)

        if ok:
            self.mainWindow.SelectLayer(layer)

    def DoOnClassify(self):
        list = self.tree.GetSelectedHierarchy()

        ok = isinstance(list[0], Layer)
        if ok:
            self.mainWindow.OpenClassifier(list[0], list[1])

    def _OnClassify(self, event):
        self.DoOnClassify()

    def _OnMoveUp(self, event): 
        self.tree.MoveCurrentItemUp()

    def _OnMoveDown(self, event):
        self.tree.MoveCurrentItemDown()

    def _OnShowLayer(self, event):
        self.tree.DoOnShowLayer()
        pass

    def _OnClose(self, event):
        self.tree.Close()

    def _OnHideLayer(self, event):
        self.tree.DoOnHideLayer()
        pass

    def __EnableButtons(self, on):
        for b in self.buttons:
            b.Enable(on)

class LegendTree(wxTreeCtrl):

    def __init__(self, parent, id, map, mainWindow):
        wxTreeCtrl.__init__(self, parent, id,
                            style = wxTR_DEFAULT_STYLE | wxTR_HIDE_ROOT,
                            size = (200, 200))

        self.mainWindow = mainWindow
        self.map = None
        self.parent = parent
        self.layer2id = {}

        self.image_list = None
        self.emptyImageIndex = 0

        self.previewer = ClassDataPreviewer()

        EVT_TREE_ITEM_ACTIVATED(self, ID_LEGEND_TREE, self._OnItemActivated)
        EVT_TREE_SEL_CHANGED(self, ID_LEGEND_TREE, self._OnSelChanged)

        EVT_CLOSE(self, self._OnClose)

        self.SetMap(map)

    def _OnClose(self, event):
        print "LegendTree destroyed"
        self.SetMap(None)

    def GetMap(self):
        return self.map

    def SetMap(self, map):

        sub_list = [(MAP_STACKING_CHANGED, self._OnMsgMapStackingChanged),
                    (MAP_LAYERS_ADDED, self._OnMsgMapLayersAddedRemoved),
                    (MAP_LAYERS_REMOVED, self._OnMsgMapLayersAddedRemoved)]

        if self.map is not None:
            for msg, func in sub_list: self.map.Unsubscribe(msg, func)
            #self.mainWindow.application.Unsubscribe(SESSION_REPLACED, 
                #self._OnMsgMapsChanged)
            #try:
                #self.mainWindow.application.session.Unsubscribe(MAPS_CHANGED, 
                    #self._OnMsgMapsChanged)
            #except ConnectorError:
                #pass
            self.__DeleteAllItems()
        
        self.map = map

        if self.map is not None:
            for msg, func in sub_list: self.map.Subscribe(msg, func)
            #self.mainWindow.application.session.Subscribe(MAPS_CHANGED, 
                #self._OnMsgMapsChanged)
            #self.mainWindow.application.Subscribe(SESSION_REPLACED, 
                #self._OnMsgMapsChanged)
            self.__FillTree(self.map)

            
    def MoveCurrentItemUp(self):
        cur_id = self.GetSelection()
        assert(cur_id.IsOk())

        cur_data = self.GetPyData(cur_id)

        #prev_id = self.GetPrevSibling(cur_id)

        #
        # Get out if there's nowhere to go
        #
        #if prev_id == INVALID_TREE_ID: return

        if isinstance(cur_data, Layer):
            self.map.RaiseLayer(cur_data)
        elif isinstance(cur_data, ClassGroup):
            pass
        else:
            assert(False, "Shouldn't be here.")
            pass

    def MoveCurrentItemDown(self):
        cur_id = self.GetSelection()
        assert(cur_id.IsOk())

        cur_data = self.GetPyData(cur_id)

        if isinstance(cur_data, Layer):
            self.map.LowerLayer(cur_data)
        elif isinstance(cur_data, ClassGroup):
            pass
        else:
            assert(False, "Shouldn't be here.")
            pass


    def OnCompareItems(self, item1, item2):

        data1 = self.GetPyData(item1)
        data2 = self.GetPyData(item2)

        if isinstance(data1, Layer):
            layers = self.map.Layers()
            return layers.index(data2) - layers.index(data1)
        else:
            return wxTreeCtrl.OnCompareItems(self, item1, item2)


    def DoOnShowLayer(self):
        #self.__ShowHideLayer(True)
        layer, group = self.GetSelectedHierarchy()
        layer.SetVisible(True)

    def DoOnHideLayer(self):
        #self.__ShowHideLayer(False)
        layer, group = self.GetSelectedHierarchy()
        layer.SetVisible(False)

#   def DoOnClassify(self):
#       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)

#       # XXX: THIS IS SUCH AWFUL STYLE! YUCK!
#       self.parent.mainWindow.OpenClassifier(item)
#       #assert(False, "XXX: FIXME HERE")

    def Sort(self):
        self.SortChildren(self.GetRootItem())

    def _OnMsgMapsChanged(self):
        print "ADfsadfsadfsadfsa"
        print self.map is self.mainWindow.Map()
        self.SetMap(self.mainWindow.Map())
        
    def _OnSelChanged(self, event):

        layer, group = self.GetSelectedHierarchy()
        self.parent.DoOnSelChanged(layer, group)

    def _OnItemActivated(self, event):
        self.parent.DoOnClassify()

    def _OnMsgLayerChanged(self, layer):
        assert(isinstance(layer, Layer))

        id = self.layer2id[layer]

        self.__FillTreeLayer(id)

    def _OnMsgMapStackingChanged(self, *args):
        self.Sort()
        id = self.GetSelection()

        if id.IsOk():
            self.EnsureVisible(id)

    def _OnMsgMapLayersAddedRemoved(self, map):
        assert(map is self.map)

        self.__FillTree(self.map)

    def _OnMsgLayerVisibilityChanged(self, layer):
        assert(isinstance(layer, Layer))

        self.__ShowHideLayer(layer)

    def GetSelectedHierarchy(self):
        id = self.GetSelection()
        assert(id.IsOk())

        layer = self.GetPyData(id)
        group = None

        if isinstance(layer, ClassGroup):
            id = self.GetItemParent(id)
            assert(id.IsOk())
            group = layer
            layer = self.GetPyData(id)

        return (layer, group)

    def __FillTree(self, map):

        assert(isinstance(map, Map))

        self.Freeze()

        self.__DeleteAllItems()

        if map.HasLayers():

            self.image_list = wxImageList(BMP_SIZE_W, BMP_SIZE_H, False, 0)
                                                                                
            bmp = wxEmptyBitmap(BMP_SIZE_W, BMP_SIZE_H)
            dc = wxMemoryDC()
            dc.SelectObject(bmp)
            dc.SetBrush(wxBLACK_BRUSH)
            dc.Clear()
            dc.SelectObject(wxNullBitmap)
                                                                                
            self.emptyImageIndex = \
                self.image_list.AddWithColourMask(bmp, wxColour(0, 0, 0))
                                                                                
            self.AssignImageList(self.image_list)

            root = self.AddRoot("")

            for l in map.Layers():
                id = self.PrependItem(root, l.Title())
                l.Subscribe(LAYER_CHANGED, self._OnMsgLayerChanged)
                l.Subscribe(LAYER_VISIBILITY_CHANGED, 
                            self._OnMsgLayerVisibilityChanged)
                self.SetPyData(id, l)
                font = self.GetItemFont(id)
                if not l.Visible():
                    font.SetStyle(wxITALIC)
                    self.SetItemFont(id, font)

                self.layer2id[l] = id

                self.__FillTreeLayer(id)
                self.Expand(id)

        self.Thaw()

    def __FillTreeLayer(self, pid):
        layer = self.GetPyData(pid)

        self.Freeze()

        self.DeleteChildren(pid)

        clazz = layer.GetClassification()

        shapeType = layer.ShapeType()

        for g in clazz:
            id = self.AppendItem(pid, g.GetDisplayText())
            self.SetPyData(id, g)

            bmp = self.__BuildGroupImage(g, shapeType)

            if bmp is None:
                self.SetItemImage(id, self.emptyImageIndex)
            else:
                i = self.image_list.Add(bmp)
                self.SetItemImage(id, i)

            #self.layer2id[g] = id

        self.Thaw()

    def __BuildGroupImage(self, group, shapeType):
        assert(isinstance(group, ClassGroup))

        bmp = wxEmptyBitmap(BMP_SIZE_W, BMP_SIZE_H)
        #brush = wxBrush(Color2wxColour(item[1]), wxSOLID)
        dc = wxMemoryDC()
        dc.SelectObject(bmp)
        dc.Clear()

        self.previewer.Draw(dc, None, group.GetProperties(), shapeType)

        return bmp

    def __DeleteAllItems(self):
        self.DeleteAllItems()

        while len(self.layer2id) > 0:
            layer, id = self.layer2id.popitem()
            layer.Unsubscribe(LAYER_CHANGED, 
                              self._OnMsgLayerChanged)
            layer.Unsubscribe(LAYER_VISIBILITY_CHANGED, 
                              self._OnMsgLayerVisibilityChanged)
 

    def __ShowHideHelper(self, show, id):
        font = self.GetItemFont(id)

        if show:
            font.SetStyle(wxNORMAL)
            color = wxBLACK
        else:
            font.SetStyle(wxITALIC)
            color = wxLIGHT_GREY

        self.SetItemTextColour(id, color)
        self.SetItemFont(id, font)
        
    def __ShowHideLayer(self, layer):
        parent = self.layer2id[layer]
        assert(parent.IsOk())

        show = layer.Visible()


        self.__ShowHideHelper(show, parent)

        id, cookie = self.GetFirstChild(parent, 123)

        while id.IsOk():
            self.__ShowHideHelper(show, id)
            id, cookie = self.GetNextChild(parent, cookie)
            
1	jonathan	542	# Copyright (c) 2001, 2002, 2003 by Intevation GmbH
2			# Authors:
3			# Jonathan Coles <[email protected]>
4			#
5			# This program is free software under the GPL (>=v2)
6			# Read the file COPYING coming with Thuban for details.
7
8			__version__ = "$Revision$"
9
10			from Thuban import _
11
12			from wxPython.wx import *
13
14			from Thuban.Model.layer import Layer
15			from Thuban.Model.map import Map
16			from Thuban.Model.messages import *
17			from Thuban.Model.classification import ClassGroup
18
19	jonathan	572	from Thuban.UI.messages import *
20	jonathan	542	from Thuban.UI.classifier import ClassDataPreviewer
21	jonathan	562	from Thuban.UI.dock import DockPanel
22	jonathan	542
23	jonathan	572	from Thuban.Lib.connector import ConnectorError
24
25	jonathan	542	ID_LEGEND_MOVEUP = 4001
26			ID_LEGEND_MOVEDOWN = 4002
27			ID_LEGEND_TREE = 4003
28			ID_LEGEND_CLASSIFY = 4004
29			ID_LEGEND_SHOWLAYER = 4005
30			ID_LEGEND_HIDELAYER = 4006
31
32			BMP_SIZE_W = 30
33			BMP_SIZE_H = 15
34
35	jonathan	562	class LegendPanel(DockPanel):
36
37			def __init__(self, parent, map, mainWindow):
38			DockPanel.__init__(self, parent, -1)
39
40			self.mainWindow = mainWindow
41			self.parent = parent
42
43	jonathan	542	panelBox = wxBoxSizer(wxVERTICAL)
44
45			buttonBox = wxGridSizer(2, 3, 0, 0)
46
47			self.buttons = []
48
49			button = wxButton(self, ID_LEGEND_MOVEUP, _("Move Up"))
50			buttonBox.Add(button, 0, wxGROW \| wxLEFT \| wxRIGHT, 0)
51			self.buttons.append(button)
52
53			button = wxButton(self, ID_LEGEND_SHOWLAYER, _("Show Layer"))
54			buttonBox.Add(button, 0, wxGROW \| wxLEFT \| wxRIGHT, 0)
55			self.buttons.append(button)
56
57			button = wxButton(self, ID_LEGEND_CLASSIFY, _("Classify"))
58			buttonBox.Add(button, 0, wxGROW \| wxLEFT \| wxRIGHT, 0)
59			self.buttons.append(button)
60
61			button = wxButton(self, ID_LEGEND_MOVEDOWN, _("Move Down"))
62			buttonBox.Add(button, 0, wxGROW \| wxLEFT \| wxRIGHT, 0)
63			self.buttons.append(button)
64
65			button = wxButton(self, ID_LEGEND_HIDELAYER, _("Hide Layer"))
66			buttonBox.Add(button, 0, wxGROW \| wxLEFT \| wxRIGHT, 0)
67			self.buttons.append(button)
68
69			EVT_BUTTON(self, ID_LEGEND_MOVEUP, self._OnMoveUp)
70			EVT_BUTTON(self, ID_LEGEND_MOVEDOWN, self._OnMoveDown)
71			EVT_BUTTON(self, ID_LEGEND_CLASSIFY, self._OnClassify)
72			EVT_BUTTON(self, ID_LEGEND_SHOWLAYER, self._OnShowLayer)
73			EVT_BUTTON(self, ID_LEGEND_HIDELAYER, self._OnHideLayer)
74
75			panelBox.Add(buttonBox, 0, 0, 4)
76
77	jonathan	562	self.tree = LegendTree(self, ID_LEGEND_TREE, map, mainWindow)
78	jonathan	542
79			panelBox.Add(self.tree, 1, wxGROW, 4)
80
81	jonathan	572	panelBox.Fit(self)
82
83	jonathan	562	self.SetAutoLayout(True)
84			self.SetSizer(panelBox)
85	jonathan	542	panelBox.SetSizeHints(self)
86
87	jonathan	562	#panelBox.SetSizeHints(self.parent)
88	jonathan	542
89	jonathan	562	self.panelBox = panelBox
90	jonathan	542
91	jonathan	572	EVT_CLOSE(self, self._OnClose)
92
93
94	jonathan	562	def GetMap(self):
95			return self.tree.GetMap()
96
97			def SetMap(self, map):
98			self.tree.SetMap(map)
99
100	jonathan	572	def DoOnSelChanged(self, layer, group):
101	jonathan	542
102	jonathan	572	ok = isinstance(layer, Layer)
103			self.__EnableButtons(ok)
104
105			if ok:
106	jonathan	568	self.mainWindow.SelectLayer(layer)
107
108	jonathan	572	def DoOnClassify(self):
109			list = self.tree.GetSelectedHierarchy()
110
111			ok = isinstance(list[0], Layer)
112			if ok:
113			self.mainWindow.OpenClassifier(list[0], list[1])
114
115	jonathan	542	def _OnClassify(self, event):
116	jonathan	572	self.DoOnClassify()
117	jonathan	542
118			def _OnMoveUp(self, event):
119			self.tree.MoveCurrentItemUp()
120
121			def _OnMoveDown(self, event):
122			self.tree.MoveCurrentItemDown()
123
124			def _OnShowLayer(self, event):
125			self.tree.DoOnShowLayer()
126			pass
127
128	jonathan	572	def _OnClose(self, event):
129			self.tree.Close()
130
131	jonathan	542	def _OnHideLayer(self, event):
132			self.tree.DoOnHideLayer()
133			pass
134
135			def __EnableButtons(self, on):
136			for b in self.buttons:
137			b.Enable(on)
138
139			class LegendTree(wxTreeCtrl):
140
141	jonathan	562	def __init__(self, parent, id, map, mainWindow):
142	jonathan	542	wxTreeCtrl.__init__(self, parent, id,
143			style = wxTR_DEFAULT_STYLE \| wxTR_HIDE_ROOT,
144			size = (200, 200))
145
146	jonathan	572	self.mainWindow = mainWindow
147	jonathan	562	self.map = None
148	jonathan	542	self.parent = parent
149	jonathan	572	self.layer2id = {}
150	jonathan	542
151			self.image_list = None
152			self.emptyImageIndex = 0
153
154			self.previewer = ClassDataPreviewer()
155
156			EVT_TREE_ITEM_ACTIVATED(self, ID_LEGEND_TREE, self._OnItemActivated)
157			EVT_TREE_SEL_CHANGED(self, ID_LEGEND_TREE, self._OnSelChanged)
158
159	jonathan	572	EVT_CLOSE(self, self._OnClose)
160
161	jonathan	562	self.SetMap(map)
162	jonathan	542
163	jonathan	572	def _OnClose(self, event):
164			print "LegendTree destroyed"
165			self.SetMap(None)
166
167	jonathan	562	def GetMap(self):
168			return self.map
169	jonathan	542
170	jonathan	562	def SetMap(self, map):
171
172			sub_list = [(MAP_STACKING_CHANGED, self._OnMsgMapStackingChanged),
173			(MAP_LAYERS_ADDED, self._OnMsgMapLayersAddedRemoved),
174			(MAP_LAYERS_REMOVED, self._OnMsgMapLayersAddedRemoved)]
175
176			if self.map is not None:
177			for msg, func in sub_list: self.map.Unsubscribe(msg, func)
178	jonathan	572	#self.mainWindow.application.Unsubscribe(SESSION_REPLACED,
179			#self._OnMsgMapsChanged)
180			#try:
181			#self.mainWindow.application.session.Unsubscribe(MAPS_CHANGED,
182			#self._OnMsgMapsChanged)
183			#except ConnectorError:
184			#pass
185	jonathan	562	self.__DeleteAllItems()
186
187			self.map = map
188
189			if self.map is not None:
190			for msg, func in sub_list: self.map.Subscribe(msg, func)
191	jonathan	572	#self.mainWindow.application.session.Subscribe(MAPS_CHANGED,
192			#self._OnMsgMapsChanged)
193			#self.mainWindow.application.Subscribe(SESSION_REPLACED,
194			#self._OnMsgMapsChanged)
195	jonathan	562	self.__FillTree(self.map)
196
197
198	jonathan	542	def MoveCurrentItemUp(self):
199			cur_id = self.GetSelection()
200			assert(cur_id.IsOk())
201
202			cur_data = self.GetPyData(cur_id)
203
204			#prev_id = self.GetPrevSibling(cur_id)
205
206			#
207			# Get out if there's nowhere to go
208			#
209			#if prev_id == INVALID_TREE_ID: return
210
211			if isinstance(cur_data, Layer):
212			self.map.RaiseLayer(cur_data)
213			elif isinstance(cur_data, ClassGroup):
214			pass
215			else:
216			assert(False, "Shouldn't be here.")
217			pass
218
219			def MoveCurrentItemDown(self):
220			cur_id = self.GetSelection()
221			assert(cur_id.IsOk())
222
223			cur_data = self.GetPyData(cur_id)
224
225			if isinstance(cur_data, Layer):
226			self.map.LowerLayer(cur_data)
227			elif isinstance(cur_data, ClassGroup):
228			pass
229			else:
230			assert(False, "Shouldn't be here.")
231			pass
232
233
234			def OnCompareItems(self, item1, item2):
235
236			data1 = self.GetPyData(item1)
237			data2 = self.GetPyData(item2)
238
239			if isinstance(data1, Layer):
240			layers = self.map.Layers()
241			return layers.index(data2) - layers.index(data1)
242			else:
243			return wxTreeCtrl.OnCompareItems(self, item1, item2)
244
245
246			def DoOnShowLayer(self):
247	jonathan	572	#self.__ShowHideLayer(True)
248			layer, group = self.GetSelectedHierarchy()
249			layer.SetVisible(True)
250	jonathan	542
251			def DoOnHideLayer(self):
252	jonathan	572	#self.__ShowHideLayer(False)
253			layer, group = self.GetSelectedHierarchy()
254			layer.SetVisible(False)
255	jonathan	542
256	jonathan	572	# def DoOnClassify(self):
257			# id = self.GetSelection()
258			# assert(id.IsOk())
259	jonathan	542
260	jonathan	572	# item = self.GetPyData(id)
261			# if isinstance(item, ClassGroup):
262			# id = self.GetItemParent(id)
263			# assert(id.IsOk())
264			# item = self.GetPyData(id)
265	jonathan	542
266	jonathan	572	# # XXX: THIS IS SUCH AWFUL STYLE! YUCK!
267			# self.parent.mainWindow.OpenClassifier(item)
268			# #assert(False, "XXX: FIXME HERE")
269	jonathan	542
270			def Sort(self):
271			self.SortChildren(self.GetRootItem())
272
273	jonathan	572	def _OnMsgMapsChanged(self):
274			print "ADfsadfsadfsadfsa"
275			print self.map is self.mainWindow.Map()
276			self.SetMap(self.mainWindow.Map())
277
278	jonathan	542	def _OnSelChanged(self, event):
279
280	jonathan	572	layer, group = self.GetSelectedHierarchy()
281	jonathan	568	self.parent.DoOnSelChanged(layer, group)
282
283	jonathan	542	def _OnItemActivated(self, event):
284	jonathan	572	self.parent.DoOnClassify()
285	jonathan	542
286			def _OnMsgLayerChanged(self, layer):
287			assert(isinstance(layer, Layer))
288
289			id = self.layer2id[layer]
290
291			self.__FillTreeLayer(id)
292
293			def _OnMsgMapStackingChanged(self, *args):
294			self.Sort()
295	jonathan	562	id = self.GetSelection()
296	jonathan	542
297	jonathan	562	if id.IsOk():
298			self.EnsureVisible(id)
299
300			def _OnMsgMapLayersAddedRemoved(self, map):
301	jonathan	572	assert(map is self.map)
302	jonathan	542
303			self.__FillTree(self.map)
304
305	jonathan	572	def _OnMsgLayerVisibilityChanged(self, layer):
306			assert(isinstance(layer, Layer))
307
308			self.__ShowHideLayer(layer)
309
310			def GetSelectedHierarchy(self):
311			id = self.GetSelection()
312			assert(id.IsOk())
313
314			layer = self.GetPyData(id)
315			group = None
316
317			if isinstance(layer, ClassGroup):
318			id = self.GetItemParent(id)
319			assert(id.IsOk())
320			group = layer
321			layer = self.GetPyData(id)
322
323			return (layer, group)
324
325	jonathan	542	def __FillTree(self, map):
326
327			assert(isinstance(map, Map))
328
329			self.Freeze()
330
331			self.__DeleteAllItems()
332
333			if map.HasLayers():
334
335			self.image_list = wxImageList(BMP_SIZE_W, BMP_SIZE_H, False, 0)
336
337			bmp = wxEmptyBitmap(BMP_SIZE_W, BMP_SIZE_H)
338			dc = wxMemoryDC()
339			dc.SelectObject(bmp)
340			dc.SetBrush(wxBLACK_BRUSH)
341			dc.Clear()
342			dc.SelectObject(wxNullBitmap)
343
344			self.emptyImageIndex = \
345			self.image_list.AddWithColourMask(bmp, wxColour(0, 0, 0))
346
347			self.AssignImageList(self.image_list)
348
349			root = self.AddRoot("")
350
351			for l in map.Layers():
352			id = self.PrependItem(root, l.Title())
353			l.Subscribe(LAYER_CHANGED, self._OnMsgLayerChanged)
354	jonathan	572	l.Subscribe(LAYER_VISIBILITY_CHANGED,
355			self._OnMsgLayerVisibilityChanged)
356	jonathan	542	self.SetPyData(id, l)
357			font = self.GetItemFont(id)
358			if not l.Visible():
359			font.SetStyle(wxITALIC)
360			self.SetItemFont(id, font)
361
362			self.layer2id[l] = id
363
364			self.__FillTreeLayer(id)
365			self.Expand(id)
366
367			self.Thaw()
368
369			def __FillTreeLayer(self, pid):
370			layer = self.GetPyData(pid)
371
372			self.Freeze()
373
374			self.DeleteChildren(pid)
375
376			clazz = layer.GetClassification()
377
378			shapeType = layer.ShapeType()
379
380			for g in clazz:
381			id = self.AppendItem(pid, g.GetDisplayText())
382			self.SetPyData(id, g)
383
384			bmp = self.__BuildGroupImage(g, shapeType)
385
386			if bmp is None:
387			self.SetItemImage(id, self.emptyImageIndex)
388			else:
389			i = self.image_list.Add(bmp)
390			self.SetItemImage(id, i)
391
392			#self.layer2id[g] = id
393
394			self.Thaw()
395
396			def __BuildGroupImage(self, group, shapeType):
397			assert(isinstance(group, ClassGroup))
398
399			bmp = wxEmptyBitmap(BMP_SIZE_W, BMP_SIZE_H)
400			#brush = wxBrush(Color2wxColour(item[1]), wxSOLID)
401			dc = wxMemoryDC()
402			dc.SelectObject(bmp)
403			dc.Clear()
404
405			self.previewer.Draw(dc, None, group.GetProperties(), shapeType)
406
407			return bmp
408
409			def __DeleteAllItems(self):
410			self.DeleteAllItems()
411
412	jonathan	572	while len(self.layer2id) > 0:
413			layer, id = self.layer2id.popitem()
414			layer.Unsubscribe(LAYER_CHANGED,
415			self._OnMsgLayerChanged)
416			layer.Unsubscribe(LAYER_VISIBILITY_CHANGED,
417			self._OnMsgLayerVisibilityChanged)
418
419	jonathan	542
420	jonathan	572	def __ShowHideHelper(self, show, id):
421			font = self.GetItemFont(id)
422	jonathan	542
423	jonathan	572	if show:
424			font.SetStyle(wxNORMAL)
425			color = wxBLACK
426			else:
427			font.SetStyle(wxITALIC)
428			color = wxLIGHT_GREY
429	jonathan	542
430	jonathan	572	self.SetItemTextColour(id, color)
431			self.SetItemFont(id, font)
432
433			def __ShowHideLayer(self, layer):
434			parent = self.layer2id[layer]
435			assert(parent.IsOk())
436	jonathan	542
437	jonathan	572	show = layer.Visible()
438	jonathan	542
439
440	jonathan	572	self.__ShowHideHelper(show, parent)
441	jonathan	542
442	jonathan	572	id, cookie = self.GetFirstChild(parent, 123)
443	jonathan	542
444	jonathan	572	while id.IsOk():
445			self.__ShowHideHelper(show, id)
446			id, cookie = self.GetNextChild(parent, cookie)
447
Name	Value
svn:eol-style	native
svn:keywords	Author Date Id Revision