/[thuban]/branches/WIP-pyshapelib-bramz/Thuban/UI/tableview.py
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revision 1035 by jan, Mon May 26 17:03:08 2003 UTC revision 1096 by jan, Thu May 29 10:03:07 2003 UTC
# Line 18  from Thuban.Lib.connector import Publish Line 18  from Thuban.Lib.connector import Publish
18  from Thuban.Model.table import FIELDTYPE_INT, FIELDTYPE_DOUBLE, \  from Thuban.Model.table import FIELDTYPE_INT, FIELDTYPE_DOUBLE, \
19       FIELDTYPE_STRING, table_to_dbf, table_to_csv       FIELDTYPE_STRING, table_to_dbf, table_to_csv
20  import view  import view
21  from dialogs import NonModalDialog  from dialogs import NonModalNonParentDialog
22  from messages import SHAPES_SELECTED  
23    from messages import SHAPES_SELECTED, SESSION_REPLACED
24    from Thuban.Model.messages import TABLE_REMOVED
25    
26  wx_value_type_map = {FIELDTYPE_INT: wxGRID_VALUE_NUMBER,  wx_value_type_map = {FIELDTYPE_INT: wxGRID_VALUE_NUMBER,
27                       FIELDTYPE_DOUBLE: wxGRID_VALUE_FLOAT,                       FIELDTYPE_DOUBLE: wxGRID_VALUE_FLOAT,
# Line 100  class DataTable(wxPyGridTableBase): Line 102  class DataTable(wxPyGridTableBase):
102          return self.CanGetValueAs(row, col, typeName)          return self.CanGetValueAs(row, col, typeName)
103    
104    
105    
106    class NullRenderer(wxPyGridCellRenderer):
107    
108        """Renderer that draws NULL as a gray rectangle
109    
110        Other values are delegated to a normal renderer which is given as
111        the parameter to the constructor.
112        """
113    
114        def __init__(self, non_null_renderer):
115            wxPyGridCellRenderer.__init__(self)
116            self.non_null_renderer = non_null_renderer
117    
118        def Draw(self, grid, attr, dc, rect, row, col, isSelected):
119            value = grid.table.GetValue(row, col)
120            if value is None:
121                dc.SetBackgroundMode(wxSOLID)
122                dc.SetBrush(wxBrush(wxColour(192, 192, 192), wxSOLID))
123                dc.SetPen(wxTRANSPARENT_PEN)
124                dc.DrawRectangle(rect.x, rect.y, rect.width, rect.height)
125            else:
126                self.non_null_renderer.Draw(grid, attr, dc, rect, row, col,
127                                            isSelected)
128    
129        def GetBestSize(self, grid, attr, dc, row, col):
130            self.non_null_renderer.GetBestSize(grid, attr, dc, row, col)
131    
132        def Clone(self):
133            return NullRenderer(self.non_null_renderer)
134    
135    
136  class TableGrid(wxGrid, Publisher):  class TableGrid(wxGrid, Publisher):
137    
138      """A grid view for a Thuban table      """A grid view for a Thuban table
# Line 135  class TableGrid(wxGrid, Publisher): Line 168  class TableGrid(wxGrid, Publisher):
168    
169          self.SetSelectionMode(wxGrid.wxGridSelectRows)          self.SetSelectionMode(wxGrid.wxGridSelectRows)
170    
         #EVT_GRID_RANGE_SELECT(self, None)  
         #EVT_GRID_SELECT_CELL(self, None)  
         #EVT_GRID_RANGE_SELECT(self, self.OnRangeSelect)  
         #EVT_GRID_SELECT_CELL(self, self.OnSelectCell)  
   
171          self.ToggleEventListeners(True)          self.ToggleEventListeners(True)
172    
173            # Replace the normal renderers with our own versions which
174            # render NULL/None values specially
175            self.RegisterDataType(wxGRID_VALUE_STRING,
176                                  NullRenderer(wxGridCellStringRenderer()), None)
177            self.RegisterDataType(wxGRID_VALUE_NUMBER,
178                                  NullRenderer(wxGridCellNumberRenderer()), None)
179            self.RegisterDataType(wxGRID_VALUE_FLOAT,
180                                  NullRenderer(wxGridCellFloatRenderer()), None)
181    
182      def SetTableObject(self, table):      def SetTableObject(self, table):
183          self.table.SetTable(table)          self.table.SetTable(table)
184    
# Line 236  class LayerTableGrid(TableGrid): Line 273  class LayerTableGrid(TableGrid):
273                  self.allow_messages()                  self.allow_messages()
274    
275    
276  class TableFrame(NonModalDialog):  class TableFrame(NonModalNonParentDialog):
277    
278      """Frame that displays a Thuban table in a grid view"""      """Frame that displays a Thuban table in a grid view"""
279    
280      def __init__(self, parent, name, title, table):      def __init__(self, parent, name, title, table):
281          NonModalDialog.__init__(self, parent, name, title)          NonModalNonParentDialog.__init__(self, parent, name, title)
282          self.table = table          self.table = table
283          self.grid = self.make_grid(self.table)          self.grid = self.make_grid(self.table)
284            self.app = self.parent.application
285            self.app.Subscribe(SESSION_REPLACED, self.close_on_session_replaced)
286            self.session = self.app.Session()
287            self.session.Subscribe(TABLE_REMOVED, self.close_on_table_removed)
288    
289      def make_grid(self, table):      def make_grid(self, table):
290          """Return the table grid to use in the frame.          """Return the table grid to use in the frame.
# Line 253  class TableFrame(NonModalDialog): Line 294  class TableFrame(NonModalDialog):
294          """          """
295          return TableGrid(self, table)          return TableGrid(self, table)
296    
297        def OnClose(self, event):
298            self.app.Unsubscribe(SESSION_REPLACED, self.close_on_session_replaced)
299            self.session.Unsubscribe(TABLE_REMOVED, self.close_on_table_removed)
300            NonModalNonParentDialog.OnClose(self, event)
301    
302        def close_on_session_replaced(self, *args):
303            """Subscriber for the SESSION_REPLACED messages.
304    
305            The table frame is tied to a session so close the window when
306            the session changes.
307            """
308            self.Close()
309    
310        def close_on_table_removed(self, table):
311            """Subscriber for the TABLE_REMOVED messages.
312    
313            The table frame is tied to a particular table so close the
314            window when the table is removed.
315            """
316            if table is self.table:
317                self.Close()
318    
319    
320  ID_QUERY = 4001  ID_QUERY = 4001
321  ID_EXPORT = 4002  ID_EXPORT = 4002
# Line 262  class QueryTableFrame(TableFrame): Line 325  class QueryTableFrame(TableFrame):
325      """Frame that displays a table in a grid view and offers user actions      """Frame that displays a table in a grid view and offers user actions
326      selection and export      selection and export
327    
328      A LayerTableFrame is TableFrame whose selection is connected to the      A QueryTableFrame is TableFrame whose selection is connected to the
329      selected object in a map.      selected object in a map.
330      """      """
331    
# Line 295  class QueryTableFrame(TableFrame): Line 358  class QueryTableFrame(TableFrame):
358    
359          topBox = wxBoxSizer(wxVERTICAL)          topBox = wxBoxSizer(wxVERTICAL)
360    
361          sizer = wxStaticBoxSizer(wxStaticBox(self, -1, _("Selection")),          sizer = wxStaticBoxSizer(wxStaticBox(self, -1,
362                                      _("Selection")),
363                                    wxHORIZONTAL)                                    wxHORIZONTAL)
364          sizer.Add(self.combo_fields, 1, wxEXPAND|wxALL, 4)          sizer.Add(self.combo_fields, 1, wxEXPAND|wxALL, 4)
365          sizer.Add(self.choice_comp, 0, wxALL, 4)          sizer.Add(self.choice_comp, 0, wxALL, 4)
# Line 452  class LayerTableFrame(QueryTableFrame): Line 516  class LayerTableFrame(QueryTableFrame):
516      def OnClose(self, event):      def OnClose(self, event):
517          """Override the derived method to first unsubscribed."""          """Override the derived method to first unsubscribed."""
518          self.parent.Unsubscribe(SHAPES_SELECTED, self.select_shapes)          self.parent.Unsubscribe(SHAPES_SELECTED, self.select_shapes)
519            self.grid.Unsubscribe(ROW_SELECTED, self.rows_selected)
520          QueryTableFrame.OnClose(self, event)          QueryTableFrame.OnClose(self, event)
521    
522      def select_shapes(self, layer, shapes):      def select_shapes(self, layer, shapes):
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