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# Copyright (c) 2001 by Intevation GmbH |
# Copyright (c) 2001, 2002, 2003 by Intevation GmbH |
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# Authors: |
# Authors: |
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# Bernhard Herzog <[email protected]> |
# Bernhard Herzog <[email protected]> |
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# |
# |
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__version__ = "$Revision$" |
__version__ = "$Revision$" |
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from wxPython.wx import * |
import os.path |
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from wxPython.grid import * |
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from Thuban import _ |
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import wx |
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from wx import grid |
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from Thuban.Lib.connector import Publisher |
from Thuban.Lib.connector import Publisher |
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from Thuban.Model.table import FIELDTYPE_INT, FIELDTYPE_DOUBLE, \ |
from Thuban.Model.table import FIELDTYPE_INT, FIELDTYPE_DOUBLE, \ |
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FIELDTYPE_STRING |
FIELDTYPE_STRING, table_to_dbf, table_to_csv |
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import view |
from dialogs import ThubanFrame |
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from dialogs import NonModalDialog |
|
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from messages import SELECTED_SHAPE |
from messages import SHAPES_SELECTED, SESSION_REPLACED |
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from Thuban.Model.messages import TABLE_REMOVED, MAP_LAYERS_REMOVED |
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wx_value_type_map = {FIELDTYPE_INT: wxGRID_VALUE_NUMBER, |
from Thuban.UI.common import ThubanBeginBusyCursor, ThubanEndBusyCursor |
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FIELDTYPE_DOUBLE: wxGRID_VALUE_FLOAT, |
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FIELDTYPE_STRING: wxGRID_VALUE_STRING} |
wx_value_type_map = {FIELDTYPE_INT: grid.GRID_VALUE_NUMBER, |
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FIELDTYPE_DOUBLE: grid.GRID_VALUE_FLOAT, |
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FIELDTYPE_STRING: grid.GRID_VALUE_STRING} |
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ROW_SELECTED = "ROW_SELECTED" |
ROW_SELECTED = "ROW_SELECTED" |
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QUERY_KEY = 'S' |
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class DataTable(wxPyGridTableBase): |
class DataTable(grid.PyGridTableBase): |
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"""Wrapper around a Thuban table object suitable for a wxGrid""" |
"""Wrapper around a Thuban table object suitable for a wxGrid""" |
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def __init__(self, table = None): |
def __init__(self, table = None): |
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wxPyGridTableBase.__init__(self) |
grid.PyGridTableBase.__init__(self) |
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self.num_cols = 0 |
self.num_cols = 0 |
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self.num_rows = 0 |
self.num_rows = 0 |
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self.columns = [] |
self.columns = [] |
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def SetTable(self, table): |
def SetTable(self, table): |
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self.table = table |
self.table = table |
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self.num_cols = table.field_count() |
self.num_cols = table.NumColumns() |
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self.num_rows = table.record_count() |
self.num_rows = table.NumRows() |
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self.columns = [] |
self.columns = [] |
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for i in range(self.num_cols): |
for i in range(self.num_cols): |
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type, name, len, decc = table.field_info(i) |
col = table.Column(i) |
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self.columns.append((name, wx_value_type_map[type], len, decc)) |
self.columns.append((col.name, wx_value_type_map[col.type])) |
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# |
# |
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# required methods for the wxPyGridTableBase interface |
# required methods for the wxPyGridTableBase interface |
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# Renderer understands the type too,) not just strings as in the |
# Renderer understands the type too,) not just strings as in the |
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# C++ version. |
# C++ version. |
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def GetValue(self, row, col): |
def GetValue(self, row, col): |
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record = self.table.read_record(row) |
try: |
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record = self.table.ReadRowAsDict(row, row_is_ordinal = 1) |
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except UnicodeError: |
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record = dict() |
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for (key, val) in self.table.ReadRowAsDict(row, \ |
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row_is_ordinal = 1).items(): |
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if isinstance(val, str): |
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record[key] = val.decode('iso-8859-1') |
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else: |
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record[key] = val |
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return record[self.columns[col][0]] |
return record[self.columns[col][0]] |
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def SetValue(self, row, col, value): |
def SetValue(self, row, col, value): |
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return self.CanGetValueAs(row, col, typeName) |
return self.CanGetValueAs(row, col, typeName) |
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class TableGrid(wxGrid, Publisher): |
# |
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def RowIdToOrdinal(self, rowid): |
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"""Return the ordinal of the row given by its id""" |
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return self.table.RowIdToOrdinal(rowid) |
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def RowOrdinalToId(self, ordinal): |
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"""Return the id of the row given by its ordinal""" |
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return self.table.RowOrdinalToId(ordinal) |
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class NullRenderer(grid.PyGridCellRenderer): |
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"""Renderer that draws NULL as a gray rectangle |
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Other values are delegated to a normal renderer which is given as |
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the parameter to the constructor. |
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""" |
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"""A grid view for a Thuban table""" |
def __init__(self, non_null_renderer): |
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grid.PyGridCellRenderer.__init__(self) |
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self.non_null_renderer = non_null_renderer |
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def Draw(self, grid, attr, dc, rect, row, col, isSelected): |
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value = grid.table.GetValue(row, col) |
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if value is None: |
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dc.SetBackgroundMode(wx.SOLID) |
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dc.SetBrush(wx.Brush(wx.Colour(192, 192, 192), wx.SOLID)) |
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dc.SetPen(wx.TRANSPARENT_PEN) |
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dc.DrawRectangle(rect.x, rect.y, rect.width, rect.height) |
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else: |
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self.non_null_renderer.Draw(grid, attr, dc, rect, row, col, |
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isSelected) |
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def GetBestSize(self, grid, attr, dc, row, col): |
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self.non_null_renderer.GetBestSize(grid, attr, dc, row, col) |
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def Clone(self): |
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return NullRenderer(self.non_null_renderer) |
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class TableGrid(grid.Grid, Publisher): |
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"""A grid view for a Thuban table |
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When rows are selected by the user the table issues ROW_SELECTED |
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messages. wx sends selection events even when the selection is |
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manipulated by code (instead of by the user) which usually lead to |
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ROW_SELECTED messages being sent in turn. Therefore sending messages |
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can be switched on and off with the allow_messages and |
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disallow_messages methods. |
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""" |
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def __init__(self, parent, table = None): |
def __init__(self, parent, table = None): |
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wxGrid.__init__(self, parent, -1) |
grid.Grid.__init__(self, parent, -1) |
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self.allow_messages_count = 0 |
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# keep track of which rows are selected. |
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self.rows = {} |
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self.table = DataTable(table) |
self.table = DataTable(table) |
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# The second parameter means that the grid is to take ownership |
# The second parameter means that the grid is to take ownership |
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# of the table and will destroy it when done. Otherwise you |
# of the table and will destroy it when done. Otherwise you |
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# would need to keep a reference to it and call it's Destroy |
# would need to keep a reference to it and call its Destroy |
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# method later. |
# method later. |
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self.SetTable(self.table, true) |
self.SetTable(self.table, True) |
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#self.SetMargins(0,0) |
#self.SetMargins(0,0) |
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self.AutoSizeColumns(false) |
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self.SetSelectionMode(wxGrid.wxGridSelectRows) |
# AutoSizeColumns would allow us to make the grid have optimal |
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# column widths automatically but it would cause a traversal of |
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EVT_GRID_RANGE_SELECT(self, self.OnRangeSelect) |
# the entire table which for large .dbf files can take a very |
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EVT_GRID_SELECT_CELL(self, self.OnSelectCell) |
# long time. |
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#self.AutoSizeColumns(False) |
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self.SetSelectionMode(grid.Grid.wxGridSelectRows) |
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self.ToggleEventListeners(True) |
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self.Bind(grid.EVT_GRID_RANGE_SELECT, self.OnRangeSelect) |
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self.Bind(grid.EVT_GRID_SELECT_CELL, self.OnSelectCell) |
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# Replace the normal renderers with our own versions which |
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# render NULL/None values specially |
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self.RegisterDataType(grid.GRID_VALUE_STRING, |
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NullRenderer(grid.GridCellStringRenderer()), None) |
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self.RegisterDataType(grid.GRID_VALUE_NUMBER, |
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NullRenderer(grid.GridCellNumberRenderer()), None) |
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self.RegisterDataType(grid.GRID_VALUE_FLOAT, |
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NullRenderer(grid.GridCellFloatRenderer()), None) |
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self.Bind(wx.EVT_WINDOW_DESTROY, self.OnDestroy) |
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def OnDestroy(self, event): |
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Publisher.Destroy(self) |
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def SetTableObject(self, table): |
def SetTableObject(self, table): |
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self.table.SetTable(table) |
self.table.SetTable(table) |
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def OnRangeSelect(self, event): |
def OnRangeSelect(self, event): |
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if event.Selecting(): |
to_id = self.table.RowOrdinalToId |
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self.issue(ROW_SELECTED, event.GetTopLeftCoords().GetRow()) |
if self.handleSelectEvents: |
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self.rows = dict([(to_id(i), 0) for i in self.GetSelectedRows()]) |
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# if we're selecting we need to include the selected range and |
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# make sure that the current row is also included, which may |
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# not be the case if you just click on a single row! |
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if event.Selecting(): |
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for i in range(event.GetTopRow(), event.GetBottomRow() + 1): |
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self.rows[to_id(i)] = 0 |
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self.rows[to_id(event.GetTopLeftCoords().GetRow())] = 0 |
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def OnSelectCell(self, event): |
self.issue(ROW_SELECTED, self.rows.keys()) |
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self.issue(ROW_SELECTED, event.GetRow()) |
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def select_shape(self, layer, shape): |
event.Skip() |
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if layer is not None and layer.table is self.table.table \ |
|
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and shape is not None: |
def OnSelectCell(self, event): |
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self.SelectRow(shape) |
to_id = self.table.RowOrdinalToId |
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self.SetGridCursor(shape, 0) |
if self.handleSelectEvents: |
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self.MakeCellVisible(shape, 0) |
self.issue(ROW_SELECTED, |
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[to_id(i) for i in self.GetSelectedRows()]) |
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event.Skip() |
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def ToggleEventListeners(self, on): |
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self.handleSelectEvents = on |
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def GetNumberSelected(self): |
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return len(self.rows) |
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def disallow_messages(self): |
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"""Disallow messages to be send. |
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This method only increases a counter so that calls to |
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disallow_messages and allow_messages can be nested. Only the |
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outermost calls will actually switch message sending on and off. |
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""" |
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self.allow_messages_count += 1 |
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def allow_messages(self): |
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"""Allow messages to be send. |
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This method only decreases a counter so that calls to |
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disallow_messages and allow_messages can be nested. Only the |
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outermost calls will actually switch message sending on and off. |
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""" |
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self.allow_messages_count -= 1 |
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def issue(self, *args): |
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"""Issue a message unless disallowed. |
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See the allow_messages and disallow_messages methods. |
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""" |
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if self.allow_messages_count == 0: |
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Publisher.issue(self, *args) |
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def SelectRowById(self, rowid, do_select): |
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"""Select row with the id rowid""" |
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self.SelectRow(self.table.RowIdToOrdinal(rowid), do_select) |
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class LayerTableGrid(TableGrid): |
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"""Table grid for the layer tables. |
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The LayerTableGrid is basically the same as a TableGrid but it's |
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selection is usually coupled to the selected object in the map. |
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""" |
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def select_shapes(self, layer, shapes): |
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"""Select the row corresponding to the specified shape and layer |
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If layer is not the layer the table is associated with do |
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nothing. If shape or layer is None also do nothing. |
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""" |
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if layer is not None \ |
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and layer.ShapeStore().Table() is self.table.table: |
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self.disallow_messages() |
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try: |
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self.ClearSelection() |
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if len(shapes) > 0: |
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# keep track of the lowest id so we can make it the |
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# first visible item |
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first = -1 |
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to_ordinal = self.table.RowIdToOrdinal |
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for shape in shapes: |
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row = to_ordinal(shape) |
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self.SelectRow(row, True) |
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if row < first: |
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first = row |
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self.SetGridCursor(first, 0) |
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self.MakeCellVisible(first, 0) |
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finally: |
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self.allow_messages() |
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class TableFrame(NonModalDialog): |
class TableFrame(ThubanFrame): |
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"""Frame that displays a Thuban table in a grid view""" |
"""Frame that displays a Thuban table in a grid view""" |
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def __init__(self, parent, interactor, name, title, layer = None, |
def __init__(self, parent, name, title, table): |
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table = None): |
ThubanFrame.__init__(self, parent, name, title) |
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NonModalDialog.__init__(self, parent, interactor, name, title) |
self.panel = wx.Panel(self, -1) |
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self.layer = layer |
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self.table = table |
self.table = table |
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self.grid = TableGrid(self, table) |
self.grid = self.make_grid(self.table) |
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self.grid.Subscribe(ROW_SELECTED, self.row_selected) |
self.app = self.parent.application |
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self.interactor.Subscribe(SELECTED_SHAPE, self.select_shape) |
self.app.Subscribe(SESSION_REPLACED, self.close_on_session_replaced) |
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self.session = self.app.Session() |
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self.session.Subscribe(TABLE_REMOVED, self.close_on_table_removed) |
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def OnDestroy(self, event): |
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"""Extend inherited method to unsubscribe messages""" |
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self.app.Unsubscribe(SESSION_REPLACED, self.close_on_session_replaced) |
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self.session.Unsubscribe(TABLE_REMOVED, self.close_on_table_removed) |
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ThubanFrame.OnDestroy(self, event) |
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def make_grid(self, table): |
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"""Return the table grid to use in the frame. |
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The default implementation returns a TableGrid instance. |
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Override in derived classes to use different grid classes. |
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""" |
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return TableGrid(self, table) |
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def close_on_session_replaced(self, *args): |
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"""Subscriber for the SESSION_REPLACED messages. |
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The table frame is tied to a session so close the window when |
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the session changes. |
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""" |
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self.Close() |
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def close_on_table_removed(self, table): |
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"""Subscriber for the TABLE_REMOVED messages. |
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The table frame is tied to a particular table so close the |
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window when the table is removed. |
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""" |
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if table is self.table: |
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self.Close() |
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ID_QUERY = 4001 |
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ID_EXPORT = 4002 |
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ID_COMBOVALUE = 4003 |
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ID_EXPORTSEL = 4004 |
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class QueryTableFrame(TableFrame): |
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"""Frame that displays a table in a grid view and offers user actions |
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selection and export |
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A QueryTableFrame is TableFrame whose selection is connected to the |
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selected object in a map. |
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""" |
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def __init__(self, parent, name, title, table): |
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TableFrame.__init__(self, parent, name, title, table) |
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self.combo_fields = wx.ComboBox(self.panel, -1, style=wx.CB_READONLY) |
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self.choice_comp = wx.Choice(self.panel, -1, |
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choices=["<", "<=", "==", "!=", ">=", ">"]) |
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self.combo_value = wx.ComboBox(self.panel, ID_COMBOVALUE) |
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self.choice_action = wx.Choice(self.panel, -1, |
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choices=[_("Replace Selection"), |
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_("Refine Selection"), |
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_("Add to Selection")]) |
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button_query = wx.Button(self.panel, ID_QUERY, _("Query")) |
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button_export = wx.Button(self.panel, ID_EXPORT, _("Export")) |
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button_exportSel = wx.Button(self.panel, ID_EXPORTSEL, _("Export Selection")) |
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button_close = wx.Button(self.panel, wx.ID_CLOSE, _("Close")) |
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self.CreateStatusBar() |
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self.grid.SetSize((400, 200)) |
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self.combo_value.Append("") |
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for i in range(table.NumColumns()): |
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name = table.Column(i).name |
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self.combo_fields.Append(name) |
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self.combo_value.Append(name) |
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# assume at least one field? |
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self.combo_fields.SetSelection(0) |
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self.combo_value.SetSelection(0) |
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self.choice_action.SetSelection(0) |
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self.choice_comp.SetSelection(0) |
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self.grid.Reparent(self.panel) |
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self.UpdateStatusText() |
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topBox = wx.BoxSizer(wx.VERTICAL) |
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|
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sizer = wx.StaticBoxSizer(wx.StaticBox(self.panel, -1, |
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_("Selection")), |
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wx.HORIZONTAL) |
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sizer.Add(self.combo_fields, 1, wx.EXPAND|wx.ALL, 4) |
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sizer.Add(self.choice_comp, 0, wx.ALL, 4) |
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sizer.Add(self.combo_value, 1, wx.EXPAND|wx.ALL, 4) |
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sizer.Add(self.choice_action, 0, wx.ALL, 4) |
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sizer.Add(button_query, 0, wx.ALL | wx.ALIGN_CENTER_VERTICAL, 4) |
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sizer.Add( (40, 20), 0, wx.ALL, 4) |
| 421 |
|
|
| 422 |
|
topBox.Add(sizer, 0, wx.EXPAND|wx.ALL, 4) |
| 423 |
|
topBox.Add(self.grid, 1, wx.EXPAND|wx.ALL, 0) |
| 424 |
|
|
| 425 |
|
sizer = wx.BoxSizer(wx.HORIZONTAL) |
| 426 |
|
sizer.Add(button_export, 0, wx.ALL, 4) |
| 427 |
|
sizer.Add(button_exportSel, 0, wx.ALL, 4) |
| 428 |
|
sizer.Add( (60, 20), 1, wx.ALL|wx.EXPAND, 4) |
| 429 |
|
sizer.Add(button_close, 0, wx.ALL|wx.ALIGN_RIGHT, 4) |
| 430 |
|
topBox.Add(sizer, 0, wx.ALL | wx.EXPAND, 4) |
| 431 |
|
|
| 432 |
|
self.panel.SetAutoLayout(True) |
| 433 |
|
self.panel.SetSizer(topBox) |
| 434 |
|
topBox.Fit(self.panel) |
| 435 |
|
topBox.SetSizeHints(self.panel) |
| 436 |
|
|
| 437 |
|
panelSizer = wx.BoxSizer(wx.VERTICAL) |
| 438 |
|
panelSizer.Add(self.panel, 1, wx.EXPAND, 0) |
| 439 |
|
self.SetAutoLayout(True) |
| 440 |
|
self.SetSizer(panelSizer) |
| 441 |
|
panelSizer.Fit(self) |
| 442 |
|
panelSizer.SetSizeHints(self) |
| 443 |
|
|
| 444 |
|
self.grid.SetFocus() |
| 445 |
|
|
| 446 |
|
self.Bind(wx.EVT_BUTTON, self.OnQuery, id=ID_QUERY) |
| 447 |
|
self.Bind(wx.EVT_BUTTON, self.OnExport, id=ID_EXPORT) |
| 448 |
|
self.Bind(wx.EVT_BUTTON, self.OnExportSel, id=ID_EXPORTSEL) |
| 449 |
|
self.Bind(wx.EVT_BUTTON, self.OnClose, id=wx.ID_CLOSE) |
| 450 |
|
self.Bind(wx.EVT_KEY_DOWN, self.OnKeyDown, self.grid) |
| 451 |
|
|
| 452 |
|
self.grid.Subscribe(ROW_SELECTED, self.UpdateStatusText) |
| 453 |
|
|
| 454 |
|
def UpdateStatusText(self, rows=None): |
| 455 |
|
self.SetStatusText(_("%i rows (%i selected), %i columns") |
| 456 |
|
% (self.grid.GetNumberRows(), |
| 457 |
|
self.grid.GetNumberSelected(), |
| 458 |
|
self.grid.GetNumberCols())) |
| 459 |
|
|
| 460 |
|
def OnKeyDown(self, event): |
| 461 |
|
"""Catch query key from grid""" |
| 462 |
|
if event.AltDown() and event.GetKeyCode() == ord(QUERY_KEY): |
| 463 |
|
self.combo_fields.SetFocus() |
| 464 |
|
self.combo_fields.refocus = True |
| 465 |
|
else: |
| 466 |
|
event.Skip() |
| 467 |
|
|
| 468 |
|
def OnQuery(self, event): |
| 469 |
|
ThubanBeginBusyCursor() |
| 470 |
|
try: |
| 471 |
|
|
| 472 |
|
text = self.combo_value.GetValue() |
| 473 |
|
if self.combo_value.GetSelection() < 1 \ |
| 474 |
|
or self.combo_value.FindString(text) == -1: |
| 475 |
|
value = text |
| 476 |
|
else: |
| 477 |
|
value = self.table.Column(text) |
| 478 |
|
|
| 479 |
|
ids = self.table.SimpleQuery( |
| 480 |
|
self.table.Column(self.combo_fields.GetStringSelection()), |
| 481 |
|
self.choice_comp.GetStringSelection(), |
| 482 |
|
value) |
| 483 |
|
|
| 484 |
|
choice = self.choice_action.GetSelection() |
| 485 |
|
|
| 486 |
|
# |
| 487 |
|
# what used to be nice code got became a bit ugly because |
| 488 |
|
# each time we select a row a message is sent to the grid |
| 489 |
|
# which we are listening for and then we send further |
| 490 |
|
# messages. |
| 491 |
|
# |
| 492 |
|
# now, we disable those listeners select everything but |
| 493 |
|
# the first item, reenable the listeners, and select |
| 494 |
|
# the first element, which causes everything to be |
| 495 |
|
# updated properly. |
| 496 |
|
# |
| 497 |
|
if ids: |
| 498 |
|
self.grid.ToggleEventListeners(False) |
| 499 |
|
|
| 500 |
|
if choice == 0: |
| 501 |
|
# Replace Selection |
| 502 |
|
self.grid.ClearSelection() |
| 503 |
|
elif choice == 1: |
| 504 |
|
# Refine Selection |
| 505 |
|
sel = self.get_selected() |
| 506 |
|
self.grid.ClearSelection() |
| 507 |
|
ids = filter(sel.has_key, ids) |
| 508 |
|
elif choice == 2: |
| 509 |
|
# Add to Selection |
| 510 |
|
pass |
| 511 |
|
|
| 512 |
|
# |
| 513 |
|
# select the rows (all but the first) |
| 514 |
|
# |
| 515 |
|
firsttime = True |
| 516 |
|
for id in ids: |
| 517 |
|
if firsttime: |
| 518 |
|
firsttime = False |
| 519 |
|
else: |
| 520 |
|
self.grid.SelectRowById(id, True) |
| 521 |
|
|
| 522 |
|
self.grid.ToggleEventListeners(True) |
| 523 |
|
|
| 524 |
|
# |
| 525 |
|
# select the first row |
| 526 |
|
# |
| 527 |
|
if ids: |
| 528 |
|
self.grid.SelectRowById(ids[0], True) |
| 529 |
|
|
| 530 |
|
finally: |
| 531 |
|
ThubanEndBusyCursor() |
| 532 |
|
|
| 533 |
|
def doExport(self, onlySelected): |
| 534 |
|
|
| 535 |
|
dlg = wx.FileDialog(self, _("Export Table To"), ".", "", |
| 536 |
|
_("DBF Files (*.dbf)|*.dbf|") + |
| 537 |
|
_("CSV Files (*.csv)|*.csv|") + |
| 538 |
|
_("All Files (*.*)|*.*"), |
| 539 |
|
wx.SAVE|wx.OVERWRITE_PROMPT) |
| 540 |
|
if dlg.ShowModal() == wx.ID_OK: |
| 541 |
|
filename = dlg.GetPath() |
| 542 |
|
type = os.path.basename(filename).split('.')[-1:][0] |
| 543 |
|
dlg.Destroy() |
| 544 |
|
|
| 545 |
|
if onlySelected: |
| 546 |
|
records = self.grid.GetSelectedRows() |
| 547 |
|
else: |
| 548 |
|
records = None |
| 549 |
|
|
| 550 |
|
if type.upper() == "DBF": |
| 551 |
|
table_to_dbf(self.table, filename, records) |
| 552 |
|
elif type.upper() == 'CSV': |
| 553 |
|
table_to_csv(self.table, filename, records) |
| 554 |
|
else: |
| 555 |
|
dlg = wx.MessageDialog(None, "Unsupported format: %s" % type, |
| 556 |
|
"Table Export", wx.OK|wx.ICON_WARNING) |
| 557 |
|
dlg.ShowModal() |
| 558 |
|
dlg.Destroy() |
| 559 |
|
else: |
| 560 |
|
dlg.Destroy() |
| 561 |
|
|
| 562 |
|
def OnExport(self, event): |
| 563 |
|
self.doExport(False) |
| 564 |
|
|
| 565 |
|
def OnExportSel(self, event): |
| 566 |
|
self.doExport(True) |
| 567 |
|
|
| 568 |
def OnClose(self, event): |
def OnClose(self, event): |
| 569 |
self.interactor.Unsubscribe(SELECTED_SHAPE, self.select_shape) |
TableFrame.OnClose(self, event) |
|
NonModalDialog.OnClose(self, event) |
|
| 570 |
|
|
| 571 |
def select_shape(self, layer, shape): |
def get_selected(self): |
| 572 |
self.grid.select_shape(layer, shape) |
"""Return a dictionary of the selected rows. |
| 573 |
|
|
| 574 |
def row_selected(self, row): |
The dictionary has the indexes as keys.""" |
| 575 |
|
to_id = self.table.RowOrdinalToId |
| 576 |
|
return dict([(to_id(i), 0) for i in self.grid.GetSelectedRows()]) |
| 577 |
|
|
| 578 |
|
|
| 579 |
|
class LayerTableFrame(QueryTableFrame): |
| 580 |
|
|
| 581 |
|
"""Frame that displays a layer table in a grid view |
| 582 |
|
|
| 583 |
|
A LayerTableFrame is a QueryTableFrame whose selection is connected to the |
| 584 |
|
selected object in a map. |
| 585 |
|
""" |
| 586 |
|
|
| 587 |
|
def __init__(self, parent, name, title, layer, table): |
| 588 |
|
QueryTableFrame.__init__(self, parent, name, title, table) |
| 589 |
|
self.layer = layer |
| 590 |
|
self.grid.Subscribe(ROW_SELECTED, self.rows_selected) |
| 591 |
|
self.parent.Subscribe(SHAPES_SELECTED, self.select_shapes) |
| 592 |
|
self.map = self.parent.Map() |
| 593 |
|
self.map.Subscribe(MAP_LAYERS_REMOVED, self.map_layers_removed) |
| 594 |
|
|
| 595 |
|
# if there is already a selection present, update the grid |
| 596 |
|
# accordingly |
| 597 |
|
sel = self.get_selected().keys() |
| 598 |
|
for i in sel: |
| 599 |
|
self.grid.SelectRowById(i, True) |
| 600 |
|
|
| 601 |
|
def OnDestroy(self, event): |
| 602 |
|
"""Extend inherited method to unsubscribe messages""" |
| 603 |
|
# There's no need to unsubscribe from self.grid's messages |
| 604 |
|
# because it will get a DESTROY event too (since destroying the |
| 605 |
|
# frame basically means that all child windows are also |
| 606 |
|
# destroyed) and this it will clear all subscriptions |
| 607 |
|
# automatically. It may even have been destroyed already (this |
| 608 |
|
# does happen on w2000 for instance) so calling any of its |
| 609 |
|
# methods here would be an error. |
| 610 |
|
self.parent.Unsubscribe(SHAPES_SELECTED, self.select_shapes) |
| 611 |
|
self.map.Unsubscribe(MAP_LAYERS_REMOVED, self.map_layers_removed) |
| 612 |
|
QueryTableFrame.OnDestroy(self, event) |
| 613 |
|
|
| 614 |
|
def make_grid(self, table): |
| 615 |
|
"""Override the derived method to return a LayerTableGrid. |
| 616 |
|
""" |
| 617 |
|
return LayerTableGrid(self, table) |
| 618 |
|
|
| 619 |
|
def get_selected(self): |
| 620 |
|
"""Override the derived method to return a dictionary of the selected |
| 621 |
|
rows. |
| 622 |
|
""" |
| 623 |
|
return dict([(i, 0) for i in self.parent.SelectedShapes()]) |
| 624 |
|
|
| 625 |
|
def select_shapes(self, layer, shapes): |
| 626 |
|
"""Subscribed to the SHAPES_SELECTED message. |
| 627 |
|
|
| 628 |
|
If shapes contains exactly one shape id, select that shape in |
| 629 |
|
the grid. Otherwise deselect all. |
| 630 |
|
""" |
| 631 |
|
self.grid.select_shapes(layer, shapes) |
| 632 |
|
|
| 633 |
|
def rows_selected(self, rows): |
| 634 |
|
"""Return the selected rows of the layer as they are returned |
| 635 |
|
by Layer.SelectShapes(). |
| 636 |
|
""" |
| 637 |
if self.layer is not None: |
if self.layer is not None: |
| 638 |
self.interactor.SelectLayerAndShape(self.layer, row) |
self.parent.SelectShapes(self.layer, rows) |
| 639 |
|
|
| 640 |
|
def map_layers_removed(self, *args): |
| 641 |
|
"""Receiver for the map's MAP_LAYERS_REMOVED message |
| 642 |
|
|
| 643 |
|
Close the dialog if the layer whose table we're showing is not |
| 644 |
|
in the map anymore. |
| 645 |
|
""" |
| 646 |
|
if self.layer not in self.map.Layers(): |
| 647 |
|
self.Close() |
| 648 |
|
|
Parent Directory
| 
Revision Log
| 
Patch