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# Copyright (c) 2001, 2002, 2003 by Intevation GmbH |
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# Authors: |
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# Jonathan Coles <[email protected]> |
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# |
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# This program is free software under the GPL (>=v2) |
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# Read the file COPYING coming with Thuban for details. |
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|
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__version__ = "$Revision$" |
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|
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from Thuban import _ |
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|
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from wxPython.wx import * |
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|
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from Thuban.Model.layer import Layer |
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from Thuban.Model.map import Map |
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from Thuban.Model.messages import * |
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from Thuban.Model.classification import ClassGroup |
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|
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from Thuban.UI.classifier import ClassDataPreviewer |
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from Thuban.UI.dock import DockPanel |
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|
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ID_LEGEND_MOVEUP = 4001 |
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ID_LEGEND_MOVEDOWN = 4002 |
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ID_LEGEND_TREE = 4003 |
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ID_LEGEND_CLASSIFY = 4004 |
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ID_LEGEND_SHOWLAYER = 4005 |
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ID_LEGEND_HIDELAYER = 4006 |
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|
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BMP_SIZE_W = 30 |
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BMP_SIZE_H = 15 |
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|
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class LegendPanel(DockPanel): |
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|
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def __init__(self, parent, map, mainWindow): |
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DockPanel.__init__(self, parent, -1) |
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|
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self.mainWindow = mainWindow |
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self.parent = parent |
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|
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panelBox = wxBoxSizer(wxVERTICAL) |
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|
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buttonBox = wxGridSizer(2, 3, 0, 0) |
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|
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self.buttons = [] |
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|
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button = wxButton(self, ID_LEGEND_MOVEUP, _("Move Up")) |
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buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0) |
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self.buttons.append(button) |
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|
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button = wxButton(self, ID_LEGEND_SHOWLAYER, _("Show Layer")) |
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buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0) |
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self.buttons.append(button) |
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|
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button = wxButton(self, ID_LEGEND_CLASSIFY, _("Classify")) |
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buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0) |
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self.buttons.append(button) |
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|
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button = wxButton(self, ID_LEGEND_MOVEDOWN, _("Move Down")) |
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buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0) |
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self.buttons.append(button) |
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|
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button = wxButton(self, ID_LEGEND_HIDELAYER, _("Hide Layer")) |
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buttonBox.Add(button, 0, wxGROW | wxLEFT | wxRIGHT, 0) |
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self.buttons.append(button) |
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|
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EVT_BUTTON(self, ID_LEGEND_MOVEUP, self._OnMoveUp) |
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EVT_BUTTON(self, ID_LEGEND_MOVEDOWN, self._OnMoveDown) |
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EVT_BUTTON(self, ID_LEGEND_CLASSIFY, self._OnClassify) |
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EVT_BUTTON(self, ID_LEGEND_SHOWLAYER, self._OnShowLayer) |
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EVT_BUTTON(self, ID_LEGEND_HIDELAYER, self._OnHideLayer) |
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|
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panelBox.Add(buttonBox, 0, 0, 4) |
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|
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self.tree = LegendTree(self, ID_LEGEND_TREE, map, mainWindow) |
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|
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panelBox.Add(self.tree, 1, wxGROW, 4) |
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|
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self.SetAutoLayout(True) |
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self.SetSizer(panelBox) |
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panelBox.SetSizeHints(self) |
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|
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#panelBox.SetSizeHints(self.parent) |
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|
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self.panelBox = panelBox |
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|
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def GetMap(self): |
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return self.tree.GetMap() |
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|
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def SetMap(self, map): |
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self.tree.SetMap(map) |
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|
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def DoOnSelChanged(self, layer, group = None): |
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sel = self.tree.GetSelection() |
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self.__EnableButtons(sel.IsOk()) |
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|
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if sel.IsOk(): |
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self.mainWindow.SelectLayer(layer) |
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|
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def _OnClassify(self, event): |
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self.tree.DoOnClassify() |
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|
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def _OnMoveUp(self, event): |
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self.tree.MoveCurrentItemUp() |
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|
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def _OnMoveDown(self, event): |
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self.tree.MoveCurrentItemDown() |
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|
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def _OnShowLayer(self, event): |
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self.tree.DoOnShowLayer() |
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pass |
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|
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def _OnHideLayer(self, event): |
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self.tree.DoOnHideLayer() |
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pass |
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|
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def __EnableButtons(self, on): |
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for b in self.buttons: |
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b.Enable(on) |
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|
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class LegendTree(wxTreeCtrl): |
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|
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def __init__(self, parent, id, map, mainWindow): |
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wxTreeCtrl.__init__(self, parent, id, |
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style = wxTR_DEFAULT_STYLE | wxTR_HIDE_ROOT, |
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size = (200, 200)) |
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|
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self.map = None |
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self.parent = parent |
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self.layer2id = None |
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|
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self.image_list = None |
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self.emptyImageIndex = 0 |
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|
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self.previewer = ClassDataPreviewer() |
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|
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EVT_TREE_ITEM_ACTIVATED(self, ID_LEGEND_TREE, self._OnItemActivated) |
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EVT_TREE_SEL_CHANGED(self, ID_LEGEND_TREE, self._OnSelChanged) |
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|
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self.SetMap(map) |
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|
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def GetMap(self): |
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return self.map |
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|
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def SetMap(self, map): |
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|
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sub_list = [(MAP_STACKING_CHANGED, self._OnMsgMapStackingChanged), |
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(MAP_LAYERS_ADDED, self._OnMsgMapLayersAddedRemoved), |
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(MAP_LAYERS_REMOVED, self._OnMsgMapLayersAddedRemoved)] |
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|
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if self.map is not None: |
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for msg, func in sub_list: self.map.Unsubscribe(msg, func) |
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self.__DeleteAllItems() |
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|
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self.map = map |
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|
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if self.map is not None: |
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for msg, func in sub_list: self.map.Subscribe(msg, func) |
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self.__FillTree(self.map) |
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|
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|
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def MoveCurrentItemUp(self): |
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cur_id = self.GetSelection() |
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assert(cur_id.IsOk()) |
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cur_data = self.GetPyData(cur_id) |
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#prev_id = self.GetPrevSibling(cur_id) |
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|
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# |
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# Get out if there's nowhere to go |
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# |
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#if prev_id == INVALID_TREE_ID: return |
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|
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if isinstance(cur_data, Layer): |
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self.map.RaiseLayer(cur_data) |
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elif isinstance(cur_data, ClassGroup): |
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pass |
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else: |
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assert(False, "Shouldn't be here.") |
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pass |
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|
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def MoveCurrentItemDown(self): |
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cur_id = self.GetSelection() |
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assert(cur_id.IsOk()) |
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cur_data = self.GetPyData(cur_id) |
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if isinstance(cur_data, Layer): |
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self.map.LowerLayer(cur_data) |
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elif isinstance(cur_data, ClassGroup): |
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pass |
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else: |
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assert(False, "Shouldn't be here.") |
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pass |
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|
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|
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def OnCompareItems(self, item1, item2): |
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data1 = self.GetPyData(item1) |
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data2 = self.GetPyData(item2) |
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if isinstance(data1, Layer): |
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layers = self.map.Layers() |
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return layers.index(data2) - layers.index(data1) |
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else: |
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return wxTreeCtrl.OnCompareItems(self, item1, item2) |
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def DoOnShowLayer(self): |
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self.__ShowHideLayer(True) |
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|
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def DoOnHideLayer(self): |
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self.__ShowHideLayer(False) |
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|
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def DoOnClassify(self): |
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id = self.GetSelection() |
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assert(id.IsOk()) |
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|
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item = self.GetPyData(id) |
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if isinstance(item, ClassGroup): |
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id = self.GetItemParent(id) |
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assert(id.IsOk()) |
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item = self.GetPyData(id) |
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|
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# XXX: THIS IS SUCH AWFUL STYLE! YUCK! |
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self.parent.mainWindow.OpenClassifier(item) |
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#assert(False, "XXX: FIXME HERE") |
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|
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def Sort(self): |
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self.SortChildren(self.GetRootItem()) |
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|
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def _OnSelChanged(self, event): |
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id = self.GetSelection() |
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assert(id.IsOk()) |
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|
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group = None |
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layer = self.GetPyData(id) |
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if isinstance(layer, ClassGroup): |
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id = self.GetItemParent(id) |
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assert(id.IsOk()) |
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group = layer |
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layer = self.GetPyData(id) |
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self.parent.DoOnSelChanged(layer, group) |
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|
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def _OnItemActivated(self, event): |
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self.DoOnClassify() |
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|
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def _OnMsgLayerChanged(self, layer): |
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assert(isinstance(layer, Layer)) |
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|
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id = self.layer2id[layer] |
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self.__FillTreeLayer(id) |
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|
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def _OnMsgMapStackingChanged(self, *args): |
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self.Sort() |
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id = self.GetSelection() |
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|
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if id.IsOk(): |
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self.EnsureVisible(id) |
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|
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def _OnMsgMapLayersAddedRemoved(self, map): |
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assert(id(map) == id(self.map)) |
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self.__FillTree(self.map) |
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|
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def __FillTree(self, map): |
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assert(isinstance(map, Map)) |
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|
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self.Freeze() |
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|
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self.__DeleteAllItems() |
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if map.HasLayers(): |
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self.image_list = wxImageList(BMP_SIZE_W, BMP_SIZE_H, False, 0) |
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|
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bmp = wxEmptyBitmap(BMP_SIZE_W, BMP_SIZE_H) |
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dc = wxMemoryDC() |
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dc.SelectObject(bmp) |
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dc.SetBrush(wxBLACK_BRUSH) |
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dc.Clear() |
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dc.SelectObject(wxNullBitmap) |
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|
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self.emptyImageIndex = \ |
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self.image_list.AddWithColourMask(bmp, wxColour(0, 0, 0)) |
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|
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self.AssignImageList(self.image_list) |
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|
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root = self.AddRoot("") |
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|
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for l in map.Layers(): |
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id = self.PrependItem(root, l.Title()) |
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l.Subscribe(LAYER_CHANGED, self._OnMsgLayerChanged) |
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self.SetPyData(id, l) |
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font = self.GetItemFont(id) |
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if not l.Visible(): |
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font.SetStyle(wxITALIC) |
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self.SetItemFont(id, font) |
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|
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self.layer2id[l] = id |
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|
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self.__FillTreeLayer(id) |
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self.Expand(id) |
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|
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self.Thaw() |
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|
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def __FillTreeLayer(self, pid): |
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layer = self.GetPyData(pid) |
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|
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self.Freeze() |
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|
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self.DeleteChildren(pid) |
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|
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clazz = layer.GetClassification() |
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|
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shapeType = layer.ShapeType() |
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|
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for g in clazz: |
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id = self.AppendItem(pid, g.GetDisplayText()) |
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self.SetPyData(id, g) |
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|
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bmp = self.__BuildGroupImage(g, shapeType) |
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|
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if bmp is None: |
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self.SetItemImage(id, self.emptyImageIndex) |
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else: |
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i = self.image_list.Add(bmp) |
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self.SetItemImage(id, i) |
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|
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#self.layer2id[g] = id |
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|
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self.Thaw() |
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|
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def __BuildGroupImage(self, group, shapeType): |
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assert(isinstance(group, ClassGroup)) |
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|
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bmp = wxEmptyBitmap(BMP_SIZE_W, BMP_SIZE_H) |
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#brush = wxBrush(Color2wxColour(item[1]), wxSOLID) |
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dc = wxMemoryDC() |
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dc.SelectObject(bmp) |
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dc.Clear() |
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|
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self.previewer.Draw(dc, None, group.GetProperties(), shapeType) |
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|
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return bmp |
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|
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def __DeleteAllItems(self): |
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self.DeleteAllItems() |
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self.layer2id = {} |
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|
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|
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def __ShowHideLayer(self, show): |
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id = self.GetSelection() |
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assert(id.IsOk()) |
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|
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item = self.GetPyData(id) |
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if isinstance(item, ClassGroup): |
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id = self.GetItemParent(id) |
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assert(id.IsOk()) |
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item = self.GetPyData(id) |
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|
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|
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if show != item.Visible(): |
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|
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item.SetVisible(show) |
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|
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font = self.GetItemFont(id) |
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if show: |
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font.SetStyle(wxNORMAL) |
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self.SetItemFont(id, font) |
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else: |
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font.SetStyle(wxITALIC) |
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self.SetItemFont(id, font) |
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|
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|
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|
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