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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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import resource |
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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.messages import * |
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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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from Thuban.Lib.connector import ConnectorError |
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|
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ID_LEGEND_RAISE = 4001 |
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ID_LEGEND_LOWER = 4002 |
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ID_LEGEND_TREE = 4003 |
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ID_LEGEND_PROPS = 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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RAISE_BMP = "raise_layer" |
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LOWER_BMP = "lower_layer" |
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SHOW_BMP = "show_layer" |
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HIDE_BMP = "hide_layer" |
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PROPS_BMP = "layer_properties" |
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|
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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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self.buttons = [] |
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|
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panelBox = wxBoxSizer(wxVERTICAL) |
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|
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self.toolBar = wxToolBar(self, -1) |
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self.toolBar.SetToolBitmapSize(wxSize(24, 24)) |
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|
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bmp = resource.GetBitmapResource(RAISE_BMP, wxBITMAP_TYPE_XPM) |
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self.toolBar.AddTool(ID_LEGEND_RAISE, bmp, |
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shortHelpString=_("Raise Layer")) |
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|
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bmp = resource.GetBitmapResource(LOWER_BMP, wxBITMAP_TYPE_XPM) |
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self.toolBar.AddTool(ID_LEGEND_LOWER, bmp, |
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shortHelpString=_("Lower Layer")) |
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|
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bmp = resource.GetBitmapResource(SHOW_BMP, wxBITMAP_TYPE_XPM) |
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self.toolBar.AddTool(ID_LEGEND_SHOWLAYER, bmp, |
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shortHelpString=_("Show Layer")) |
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|
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bmp = resource.GetBitmapResource(HIDE_BMP, wxBITMAP_TYPE_XPM) |
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self.toolBar.AddTool(ID_LEGEND_HIDELAYER, bmp, |
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shortHelpString=_("Hide Layer")) |
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|
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bmp = resource.GetBitmapResource(PROPS_BMP, wxBITMAP_TYPE_XPM) |
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self.toolBar.AddTool(ID_LEGEND_PROPS, bmp, |
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shortHelpString=_("Edit Layer Properties")) |
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|
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self.toolBar.Realize() |
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panelBox.Add(self.toolBar, 0, wxGROW, 0) |
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|
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EVT_TOOL(self, ID_LEGEND_RAISE, self._OnMoveUp) |
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EVT_TOOL(self, ID_LEGEND_LOWER, self._OnMoveDown) |
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EVT_TOOL(self, ID_LEGEND_PROPS, self._OnProperties) |
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EVT_TOOL(self, ID_LEGEND_SHOWLAYER, self._OnShowLayer) |
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EVT_TOOL(self, ID_LEGEND_HIDELAYER, self._OnHideLayer) |
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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, 0) |
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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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|
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self.panelBox = panelBox |
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|
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self.__EnableButtons(False) |
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|
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self.Create() |
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|
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EVT_CLOSE(self, self._OnClose) |
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|
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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): |
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|
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ok = isinstance(layer, Layer) |
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self.__EnableButtons(ok) |
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|
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self.mainWindow.SelectLayer(layer) |
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|
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def DoOnProperties(self): |
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list = self.tree.GetSelectedHierarchy() |
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|
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ok = isinstance(list[0], Layer) |
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if ok: |
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self.mainWindow.OpenLayerProperties(list[0], list[1]) |
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|
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def Destroy(self): |
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self.__Close() |
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|
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def _OnProperties(self, event): |
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self.DoOnProperties() |
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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 Close(self, force = False): |
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#DockPanel.Close(self, force) |
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|
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def _OnClose(self, event): |
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self.__Close() |
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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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self.toolBar.EnableTool(ID_LEGEND_RAISE, on) |
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self.toolBar.EnableTool(ID_LEGEND_LOWER, on) |
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self.toolBar.EnableTool(ID_LEGEND_SHOWLAYER, on) |
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self.toolBar.EnableTool(ID_LEGEND_HIDELAYER, on) |
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self.toolBar.EnableTool(ID_LEGEND_PROPS, on) |
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|
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def __Close(self): |
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self.tree.Close() |
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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.mainWindow = mainWindow |
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self.map = None |
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self.parent = parent |
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self.layer2id = {} |
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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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EVT_CLOSE(self, self._OnClose) |
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|
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self.SetMap(map) |
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|
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def _OnClose(self, event): |
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self.SetMap(None) |
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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.mainWindow.application.Unsubscribe(SESSION_REPLACED, |
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#self._OnMsgMapsChanged) |
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#try: |
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#self.mainWindow.application.session.Unsubscribe(MAPS_CHANGED, |
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#self._OnMsgMapsChanged) |
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#except ConnectorError: |
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#pass |
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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.mainWindow.application.session.Subscribe(MAPS_CHANGED, |
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#self._OnMsgMapsChanged) |
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#self.mainWindow.application.Subscribe(SESSION_REPLACED, |
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#self._OnMsgMapsChanged) |
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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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layer, group = self.GetSelectedHierarchy() |
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|
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if layer is not None: |
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self.map.RaiseLayer(layer) |
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else: |
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assert False, "Shouldn't be allowed." |
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pass |
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|
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def MoveCurrentItemDown(self): |
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layer, group = self.GetSelectedHierarchy() |
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|
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if layer is not None: |
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self.map.LowerLayer(layer) |
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else: |
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assert False, "Shouldn't be allowed." |
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pass |
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|
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def OnCompareItems(self, item1, item2): |
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|
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data1 = self.GetPyData(item1) |
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data2 = self.GetPyData(item2) |
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|
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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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|
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|
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def DoOnShowLayer(self): |
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#self.__ShowHideLayer(True) |
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layer, group = self.GetSelectedHierarchy() |
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layer.SetVisible(True) |
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|
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def DoOnHideLayer(self): |
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#self.__ShowHideLayer(False) |
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layer, group = self.GetSelectedHierarchy() |
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layer.SetVisible(False) |
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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 GetSelectedHierarchy(self): |
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id = self.GetSelection() |
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|
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if not id.IsOk(): |
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return (None, None) |
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|
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layer = self.GetPyData(id) |
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group = None |
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|
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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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|
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return (layer, group) |
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|
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def _OnMsgMapsChanged(self): |
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#print self.map is self.mainWindow.Map() |
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self.SetMap(self.mainWindow.Map()) |
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|
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def _OnSelChanged(self, event): |
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self.__UpdateSelection() |
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|
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def _OnItemActivated(self, event): |
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self.parent.DoOnProperties() |
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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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assert id.IsOk() |
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|
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# XXX: yikes! this is so bad, we should be doing what is |
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# commented out, but there is a problem with keeping |
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# track of the images in the image list when we replace |
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# a layer. it ends up causing a seg fault. |
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self.__FillTree(self.map) |
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self.__UpdateSelection() |
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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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self.__UpdateSelection() |
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|
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def _OnMsgMapLayersAddedRemoved(self, map): |
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assert map is self.map |
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|
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self.__FillTree(self.map) |
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self.__UpdateSelection() |
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|
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def _OnMsgLayerVisibilityChanged(self, layer): |
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assert isinstance(layer, Layer) |
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|
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self.__ShowHideLayer(layer) |
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self.__UpdateSelection() |
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|
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def _OnMsgLayerTitleChanged(self, layer): |
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|
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id = self.layer2id[layer] |
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if id.IsOk(): |
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self.SetItemText(id, layer.Title()) |
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self.__UpdateSelection() |
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|
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def __UpdateSelection(self): |
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layer, group = self.GetSelectedHierarchy() |
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self.parent.DoOnSelChanged(layer, group) |
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|
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def __FillTree(self, 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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|
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if map.HasLayers(): |
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|
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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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l.Subscribe(LAYER_VISIBILITY_CHANGED, |
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self._OnMsgLayerVisibilityChanged) |
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l.Subscribe(TITLE_CHANGED, self._OnMsgLayerTitleChanged) |
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self.SetPyData(id, l) |
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self.__SetVisibilityStyle(l.Visible(), id) |
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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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show = layer.Visible() |
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for g in clazz: |
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if g.IsVisible(): |
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id = self.AppendItem(pid, g.GetDisplayText()) |
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self.SetPyData(id, g) |
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self.__SetVisibilityStyle(show, id) |
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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.Thaw() |
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|
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def __BuildGroupImage(self, group, shapeType): |
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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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|
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while len(self.layer2id) > 0: |
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layer, id = self.layer2id.popitem() |
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layer.Unsubscribe(LAYER_CHANGED, |
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self._OnMsgLayerChanged) |
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layer.Unsubscribe(LAYER_VISIBILITY_CHANGED, |
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self._OnMsgLayerVisibilityChanged) |
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layer.Unsubscribe(TITLE_CHANGED, self._OnMsgLayerTitleChanged) |
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|
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self.DeleteAllItems() |
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|
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def __SetVisibilityStyle(self, visible, id): |
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font = self.GetItemFont(id) |
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|
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if visible: |
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font.SetStyle(wxNORMAL) |
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color = wxBLACK |
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else: |
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font.SetStyle(wxITALIC) |
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color = wxLIGHT_GREY |
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|
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self.SetItemTextColour(id, color) |
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self.SetItemFont(id, font) |
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|
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def __ShowHideLayer(self, layer): |
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parent = self.layer2id[layer] |
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assert parent.IsOk() |
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|
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visible = layer.Visible() |
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|
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self.__SetVisibilityStyle(visible, parent) |
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|
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id, cookie = self.GetFirstChild(parent, 123) |
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|
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while id.IsOk(): |
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self.__SetVisibilityStyle(visible, id) |
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id, cookie = self.GetNextChild(parent, cookie) |
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|
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