| 1 |
# Copyright (c) 2001, 2002, 2003 by Intevation GmbH |
| 2 |
# Authors: |
| 3 |
# Bernhard Herzog <[email protected]> |
| 4 |
# |
| 5 |
# This program is free software under the GPL (>=v2) |
| 6 |
# Read the file COPYING coming with Thuban for details. |
| 7 |
|
| 8 |
__version__ = "$Revision$" |
| 9 |
|
| 10 |
import os.path |
| 11 |
|
| 12 |
from Thuban import _ |
| 13 |
|
| 14 |
import wx |
| 15 |
from wx import grid |
| 16 |
|
| 17 |
from Thuban.Lib.connector import Publisher |
| 18 |
from Thuban.Model.table import FIELDTYPE_INT, FIELDTYPE_DOUBLE, \ |
| 19 |
FIELDTYPE_STRING, table_to_dbf, table_to_csv |
| 20 |
from dialogs import ThubanFrame |
| 21 |
|
| 22 |
from messages import SHAPES_SELECTED, SESSION_REPLACED |
| 23 |
from Thuban.Model.messages import TABLE_REMOVED, MAP_LAYERS_REMOVED |
| 24 |
from Thuban.UI.common import ThubanBeginBusyCursor, ThubanEndBusyCursor |
| 25 |
|
| 26 |
wx_value_type_map = {FIELDTYPE_INT: grid.GRID_VALUE_NUMBER, |
| 27 |
FIELDTYPE_DOUBLE: grid.GRID_VALUE_FLOAT, |
| 28 |
FIELDTYPE_STRING: grid.GRID_VALUE_STRING} |
| 29 |
|
| 30 |
ROW_SELECTED = "ROW_SELECTED" |
| 31 |
|
| 32 |
QUERY_KEY = 'S' |
| 33 |
|
| 34 |
class DataTable(grid.PyGridTableBase): |
| 35 |
|
| 36 |
"""Wrapper around a Thuban table object suitable for a wxGrid""" |
| 37 |
|
| 38 |
def __init__(self, table = None): |
| 39 |
grid.PyGridTableBase.__init__(self) |
| 40 |
self.num_cols = 0 |
| 41 |
self.num_rows = 0 |
| 42 |
self.columns = [] |
| 43 |
self.table = None |
| 44 |
self.SetTable(table) |
| 45 |
|
| 46 |
def SetTable(self, table): |
| 47 |
self.table = table |
| 48 |
self.num_cols = table.NumColumns() |
| 49 |
self.num_rows = table.NumRows() |
| 50 |
|
| 51 |
self.columns = [] |
| 52 |
for i in range(self.num_cols): |
| 53 |
col = table.Column(i) |
| 54 |
self.columns.append((col.name, wx_value_type_map[col.type])) |
| 55 |
|
| 56 |
# |
| 57 |
# required methods for the wxPyGridTableBase interface |
| 58 |
# |
| 59 |
|
| 60 |
def GetNumberRows(self): |
| 61 |
return self.num_rows |
| 62 |
|
| 63 |
def GetNumberCols(self): |
| 64 |
return self.num_cols |
| 65 |
|
| 66 |
def IsEmptyCell(self, row, col): |
| 67 |
return 0 |
| 68 |
|
| 69 |
# Get/Set values in the table. The Python version of these |
| 70 |
# methods can handle any data-type, (as long as the Editor and |
| 71 |
# Renderer understands the type too,) not just strings as in the |
| 72 |
# C++ version. |
| 73 |
def GetValue(self, row, col): |
| 74 |
try: |
| 75 |
record = self.table.ReadRowAsDict(row, row_is_ordinal = 1) |
| 76 |
except UnicodeError: |
| 77 |
record = dict() |
| 78 |
for (key, val) in self.table.ReadRowAsDict(row, \ |
| 79 |
row_is_ordinal = 1).items(): |
| 80 |
record[key] = val |
| 81 |
return record[self.columns[col][0]] |
| 82 |
|
| 83 |
def SetValue(self, row, col, value): |
| 84 |
pass |
| 85 |
|
| 86 |
# |
| 87 |
# Some optional methods |
| 88 |
# |
| 89 |
|
| 90 |
# Called when the grid needs to display labels |
| 91 |
def GetColLabelValue(self, col): |
| 92 |
return self.columns[col][0] |
| 93 |
|
| 94 |
# Called to determine the kind of editor/renderer to use by |
| 95 |
# default, doesn't necessarily have to be the same type used |
| 96 |
# nativly by the editor/renderer if they know how to convert. |
| 97 |
def GetTypeName(self, row, col): |
| 98 |
return self.columns[col][1] |
| 99 |
|
| 100 |
# Called to determine how the data can be fetched and stored by the |
| 101 |
# editor and renderer. This allows you to enforce some type-safety |
| 102 |
# in the grid. |
| 103 |
def CanGetValueAs(self, row, col, typeName): |
| 104 |
# perhaps we should allow conversion int->double? |
| 105 |
return self.GetTypeName(row, col) == typeName |
| 106 |
|
| 107 |
def CanSetValueAs(self, row, col, typeName): |
| 108 |
return self.CanGetValueAs(row, col, typeName) |
| 109 |
|
| 110 |
|
| 111 |
# |
| 112 |
def RowIdToOrdinal(self, rowid): |
| 113 |
"""Return the ordinal of the row given by its id""" |
| 114 |
return self.table.RowIdToOrdinal(rowid) |
| 115 |
|
| 116 |
def RowOrdinalToId(self, ordinal): |
| 117 |
"""Return the id of the row given by its ordinal""" |
| 118 |
return self.table.RowOrdinalToId(ordinal) |
| 119 |
|
| 120 |
|
| 121 |
class NullRenderer(grid.PyGridCellRenderer): |
| 122 |
|
| 123 |
"""Renderer that draws NULL as a gray rectangle |
| 124 |
|
| 125 |
Other values are delegated to a normal renderer which is given as |
| 126 |
the parameter to the constructor. |
| 127 |
""" |
| 128 |
|
| 129 |
def __init__(self, non_null_renderer): |
| 130 |
grid.PyGridCellRenderer.__init__(self) |
| 131 |
self.non_null_renderer = non_null_renderer |
| 132 |
|
| 133 |
def Draw(self, grid, attr, dc, rect, row, col, isSelected): |
| 134 |
value = grid.table.GetValue(row, col) |
| 135 |
if value is None: |
| 136 |
dc.SetBackgroundMode(wx.SOLID) |
| 137 |
dc.SetBrush(wx.Brush(wx.Colour(192, 192, 192), wx.SOLID)) |
| 138 |
dc.SetPen(wx.TRANSPARENT_PEN) |
| 139 |
dc.DrawRectangle(rect.x, rect.y, rect.width, rect.height) |
| 140 |
else: |
| 141 |
self.non_null_renderer.Draw(grid, attr, dc, rect, row, col, |
| 142 |
isSelected) |
| 143 |
|
| 144 |
def GetBestSize(self, grid, attr, dc, row, col): |
| 145 |
self.non_null_renderer.GetBestSize(grid, attr, dc, row, col) |
| 146 |
|
| 147 |
def Clone(self): |
| 148 |
return NullRenderer(self.non_null_renderer) |
| 149 |
|
| 150 |
|
| 151 |
class TableGrid(grid.Grid, Publisher): |
| 152 |
|
| 153 |
"""A grid view for a Thuban table |
| 154 |
|
| 155 |
When rows are selected by the user the table issues ROW_SELECTED |
| 156 |
messages. wx sends selection events even when the selection is |
| 157 |
manipulated by code (instead of by the user) which usually lead to |
| 158 |
ROW_SELECTED messages being sent in turn. Therefore sending messages |
| 159 |
can be switched on and off with the allow_messages and |
| 160 |
disallow_messages methods. |
| 161 |
""" |
| 162 |
|
| 163 |
def __init__(self, parent, table = None): |
| 164 |
grid.Grid.__init__(self, parent, -1) |
| 165 |
|
| 166 |
self.allow_messages_count = 0 |
| 167 |
|
| 168 |
# keep track of which rows are selected. |
| 169 |
self.rows = {} |
| 170 |
|
| 171 |
self.table = DataTable(table) |
| 172 |
|
| 173 |
# The second parameter means that the grid is to take ownership |
| 174 |
# of the table and will destroy it when done. Otherwise you |
| 175 |
# would need to keep a reference to it and call its Destroy |
| 176 |
# method later. |
| 177 |
self.SetTable(self.table, True) |
| 178 |
|
| 179 |
#self.SetMargins(0,0) |
| 180 |
|
| 181 |
# AutoSizeColumns would allow us to make the grid have optimal |
| 182 |
# column widths automatically but it would cause a traversal of |
| 183 |
# the entire table which for large .dbf files can take a very |
| 184 |
# long time. |
| 185 |
#self.AutoSizeColumns(False) |
| 186 |
|
| 187 |
self.SetSelectionMode(grid.Grid.wxGridSelectRows) |
| 188 |
|
| 189 |
self.ToggleEventListeners(True) |
| 190 |
self.Bind(grid.EVT_GRID_RANGE_SELECT, self.OnRangeSelect) |
| 191 |
self.Bind(grid.EVT_GRID_SELECT_CELL, self.OnSelectCell) |
| 192 |
|
| 193 |
# Replace the normal renderers with our own versions which |
| 194 |
# render NULL/None values specially |
| 195 |
self.RegisterDataType(grid.GRID_VALUE_STRING, |
| 196 |
NullRenderer(grid.GridCellStringRenderer()), None) |
| 197 |
self.RegisterDataType(grid.GRID_VALUE_NUMBER, |
| 198 |
NullRenderer(grid.GridCellNumberRenderer()), None) |
| 199 |
self.RegisterDataType(grid.GRID_VALUE_FLOAT, |
| 200 |
NullRenderer(grid.GridCellFloatRenderer()), None) |
| 201 |
|
| 202 |
self.Bind(wx.EVT_WINDOW_DESTROY, self.OnDestroy) |
| 203 |
|
| 204 |
def OnDestroy(self, event): |
| 205 |
Publisher.Destroy(self) |
| 206 |
|
| 207 |
def SetTableObject(self, table): |
| 208 |
self.table.SetTable(table) |
| 209 |
|
| 210 |
def OnRangeSelect(self, event): |
| 211 |
to_id = self.table.RowOrdinalToId |
| 212 |
if self.handleSelectEvents: |
| 213 |
self.rows = dict([(to_id(i), 0) for i in self.GetSelectedRows()]) |
| 214 |
|
| 215 |
# if we're selecting we need to include the selected range and |
| 216 |
# make sure that the current row is also included, which may |
| 217 |
# not be the case if you just click on a single row! |
| 218 |
if event.Selecting(): |
| 219 |
for i in range(event.GetTopRow(), event.GetBottomRow() + 1): |
| 220 |
self.rows[to_id(i)] = 0 |
| 221 |
self.rows[to_id(event.GetTopLeftCoords().GetRow())] = 0 |
| 222 |
|
| 223 |
self.issue(ROW_SELECTED, self.rows.keys()) |
| 224 |
|
| 225 |
event.Skip() |
| 226 |
|
| 227 |
def OnSelectCell(self, event): |
| 228 |
to_id = self.table.RowOrdinalToId |
| 229 |
if self.handleSelectEvents: |
| 230 |
self.issue(ROW_SELECTED, |
| 231 |
[to_id(i) for i in self.GetSelectedRows()]) |
| 232 |
event.Skip() |
| 233 |
|
| 234 |
def ToggleEventListeners(self, on): |
| 235 |
self.handleSelectEvents = on |
| 236 |
|
| 237 |
def GetNumberSelected(self): |
| 238 |
return len(self.rows) |
| 239 |
|
| 240 |
def disallow_messages(self): |
| 241 |
"""Disallow messages to be send. |
| 242 |
|
| 243 |
This method only increases a counter so that calls to |
| 244 |
disallow_messages and allow_messages can be nested. Only the |
| 245 |
outermost calls will actually switch message sending on and off. |
| 246 |
""" |
| 247 |
self.allow_messages_count += 1 |
| 248 |
|
| 249 |
def allow_messages(self): |
| 250 |
"""Allow messages to be send. |
| 251 |
|
| 252 |
This method only decreases a counter so that calls to |
| 253 |
disallow_messages and allow_messages can be nested. Only the |
| 254 |
outermost calls will actually switch message sending on and off. |
| 255 |
""" |
| 256 |
self.allow_messages_count -= 1 |
| 257 |
|
| 258 |
def issue(self, *args): |
| 259 |
"""Issue a message unless disallowed. |
| 260 |
|
| 261 |
See the allow_messages and disallow_messages methods. |
| 262 |
""" |
| 263 |
if self.allow_messages_count == 0: |
| 264 |
Publisher.issue(self, *args) |
| 265 |
|
| 266 |
def SelectRowById(self, rowid, do_select): |
| 267 |
"""Select row with the id rowid""" |
| 268 |
self.SelectRow(self.table.RowIdToOrdinal(rowid), do_select) |
| 269 |
|
| 270 |
|
| 271 |
class LayerTableGrid(TableGrid): |
| 272 |
|
| 273 |
"""Table grid for the layer tables. |
| 274 |
|
| 275 |
The LayerTableGrid is basically the same as a TableGrid but it's |
| 276 |
selection is usually coupled to the selected object in the map. |
| 277 |
""" |
| 278 |
|
| 279 |
def select_shapes(self, layer, shapes): |
| 280 |
"""Select the row corresponding to the specified shape and layer |
| 281 |
|
| 282 |
If layer is not the layer the table is associated with do |
| 283 |
nothing. If shape or layer is None also do nothing. |
| 284 |
""" |
| 285 |
if layer is not None \ |
| 286 |
and layer.ShapeStore().Table() is self.table.table: |
| 287 |
|
| 288 |
self.disallow_messages() |
| 289 |
try: |
| 290 |
self.ClearSelection() |
| 291 |
if len(shapes) > 0: |
| 292 |
# keep track of the lowest id so we can make it the |
| 293 |
# first visible item |
| 294 |
first = -1 |
| 295 |
|
| 296 |
to_ordinal = self.table.RowIdToOrdinal |
| 297 |
for shape in shapes: |
| 298 |
row = to_ordinal(shape) |
| 299 |
self.SelectRow(row, True) |
| 300 |
if row < first: |
| 301 |
first = row |
| 302 |
|
| 303 |
self.SetGridCursor(first, 0) |
| 304 |
self.MakeCellVisible(first, 0) |
| 305 |
finally: |
| 306 |
self.allow_messages() |
| 307 |
|
| 308 |
|
| 309 |
class TableFrame(ThubanFrame): |
| 310 |
|
| 311 |
"""Frame that displays a Thuban table in a grid view""" |
| 312 |
|
| 313 |
def __init__(self, parent, name, title, table): |
| 314 |
ThubanFrame.__init__(self, parent, name, title) |
| 315 |
self.panel = wx.Panel(self, -1) |
| 316 |
|
| 317 |
self.table = table |
| 318 |
self.grid = self.make_grid(self.table) |
| 319 |
self.app = self.parent.application |
| 320 |
self.app.Subscribe(SESSION_REPLACED, self.close_on_session_replaced) |
| 321 |
self.session = self.app.Session() |
| 322 |
self.session.Subscribe(TABLE_REMOVED, self.close_on_table_removed) |
| 323 |
|
| 324 |
def OnDestroy(self, event): |
| 325 |
"""Extend inherited method to unsubscribe messages""" |
| 326 |
self.app.Unsubscribe(SESSION_REPLACED, self.close_on_session_replaced) |
| 327 |
self.session.Unsubscribe(TABLE_REMOVED, self.close_on_table_removed) |
| 328 |
ThubanFrame.OnDestroy(self, event) |
| 329 |
|
| 330 |
def make_grid(self, table): |
| 331 |
"""Return the table grid to use in the frame. |
| 332 |
|
| 333 |
The default implementation returns a TableGrid instance. |
| 334 |
Override in derived classes to use different grid classes. |
| 335 |
""" |
| 336 |
return TableGrid(self, table) |
| 337 |
|
| 338 |
def close_on_session_replaced(self, *args): |
| 339 |
"""Subscriber for the SESSION_REPLACED messages. |
| 340 |
|
| 341 |
The table frame is tied to a session so close the window when |
| 342 |
the session changes. |
| 343 |
""" |
| 344 |
self.Close() |
| 345 |
|
| 346 |
def close_on_table_removed(self, table): |
| 347 |
"""Subscriber for the TABLE_REMOVED messages. |
| 348 |
|
| 349 |
The table frame is tied to a particular table so close the |
| 350 |
window when the table is removed. |
| 351 |
""" |
| 352 |
if table is self.table: |
| 353 |
self.Close() |
| 354 |
|
| 355 |
|
| 356 |
ID_QUERY = 4001 |
| 357 |
ID_EXPORT = 4002 |
| 358 |
ID_COMBOVALUE = 4003 |
| 359 |
ID_EXPORTSEL = 4004 |
| 360 |
|
| 361 |
class QueryTableFrame(TableFrame): |
| 362 |
|
| 363 |
"""Frame that displays a table in a grid view and offers user actions |
| 364 |
selection and export |
| 365 |
|
| 366 |
A QueryTableFrame is TableFrame whose selection is connected to the |
| 367 |
selected object in a map. |
| 368 |
""" |
| 369 |
|
| 370 |
def __init__(self, parent, name, title, table): |
| 371 |
TableFrame.__init__(self, parent, name, title, table) |
| 372 |
|
| 373 |
self.combo_fields = wx.ComboBox(self.panel, -1, style=wx.CB_READONLY) |
| 374 |
self.choice_comp = wx.Choice(self.panel, -1, |
| 375 |
choices=["<", "<=", "==", "!=", ">=", ">"]) |
| 376 |
self.combo_value = wx.ComboBox(self.panel, ID_COMBOVALUE) |
| 377 |
self.choice_action = wx.Choice(self.panel, -1, |
| 378 |
choices=[_("Replace Selection"), |
| 379 |
_("Refine Selection"), |
| 380 |
_("Add to Selection")]) |
| 381 |
|
| 382 |
button_query = wx.Button(self.panel, ID_QUERY, _("Query")) |
| 383 |
button_export = wx.Button(self.panel, ID_EXPORT, _("Export")) |
| 384 |
button_exportSel = wx.Button(self.panel, ID_EXPORTSEL, _("Export Selection")) |
| 385 |
button_close = wx.Button(self.panel, wx.ID_CLOSE, _("Close")) |
| 386 |
|
| 387 |
self.CreateStatusBar() |
| 388 |
|
| 389 |
self.grid.SetSize((400, 200)) |
| 390 |
|
| 391 |
self.combo_value.Append("") |
| 392 |
for i in range(table.NumColumns()): |
| 393 |
name = table.Column(i).name |
| 394 |
self.combo_fields.Append(name) |
| 395 |
self.combo_value.Append(name) |
| 396 |
|
| 397 |
# assume at least one field? |
| 398 |
self.combo_fields.SetSelection(0) |
| 399 |
self.combo_value.SetSelection(0) |
| 400 |
self.choice_action.SetSelection(0) |
| 401 |
self.choice_comp.SetSelection(0) |
| 402 |
|
| 403 |
self.grid.Reparent(self.panel) |
| 404 |
|
| 405 |
self.UpdateStatusText() |
| 406 |
|
| 407 |
topBox = wx.BoxSizer(wx.VERTICAL) |
| 408 |
|
| 409 |
sizer = wx.StaticBoxSizer(wx.StaticBox(self.panel, -1, |
| 410 |
_("Selection")), |
| 411 |
wx.HORIZONTAL) |
| 412 |
sizer.Add(self.combo_fields, 1, wx.EXPAND|wx.ALL, 4) |
| 413 |
sizer.Add(self.choice_comp, 0, wx.ALL, 4) |
| 414 |
sizer.Add(self.combo_value, 1, wx.EXPAND|wx.ALL, 4) |
| 415 |
sizer.Add(self.choice_action, 0, wx.ALL, 4) |
| 416 |
sizer.Add(button_query, 0, wx.ALL | wx.ALIGN_CENTER_VERTICAL, 4) |
| 417 |
sizer.Add( (40, 20), 0, wx.ALL, 4) |
| 418 |
|
| 419 |
topBox.Add(sizer, 0, wx.EXPAND|wx.ALL, 4) |
| 420 |
topBox.Add(self.grid, 1, wx.EXPAND|wx.ALL, 0) |
| 421 |
|
| 422 |
sizer = wx.BoxSizer(wx.HORIZONTAL) |
| 423 |
sizer.Add(button_export, 0, wx.ALL, 4) |
| 424 |
sizer.Add(button_exportSel, 0, wx.ALL, 4) |
| 425 |
sizer.Add( (60, 20), 1, wx.ALL|wx.EXPAND, 4) |
| 426 |
sizer.Add(button_close, 0, wx.ALL|wx.ALIGN_RIGHT, 4) |
| 427 |
topBox.Add(sizer, 0, wx.ALL | wx.EXPAND, 4) |
| 428 |
|
| 429 |
self.panel.SetAutoLayout(True) |
| 430 |
self.panel.SetSizer(topBox) |
| 431 |
topBox.Fit(self.panel) |
| 432 |
topBox.SetSizeHints(self.panel) |
| 433 |
|
| 434 |
panelSizer = wx.BoxSizer(wx.VERTICAL) |
| 435 |
panelSizer.Add(self.panel, 1, wx.EXPAND, 0) |
| 436 |
self.SetAutoLayout(True) |
| 437 |
self.SetSizer(panelSizer) |
| 438 |
panelSizer.Fit(self) |
| 439 |
panelSizer.SetSizeHints(self) |
| 440 |
|
| 441 |
self.grid.SetFocus() |
| 442 |
|
| 443 |
self.Bind(wx.EVT_BUTTON, self.OnQuery, id=ID_QUERY) |
| 444 |
self.Bind(wx.EVT_BUTTON, self.OnExport, id=ID_EXPORT) |
| 445 |
self.Bind(wx.EVT_BUTTON, self.OnExportSel, id=ID_EXPORTSEL) |
| 446 |
self.Bind(wx.EVT_BUTTON, self.OnClose, id=wx.ID_CLOSE) |
| 447 |
self.Bind(wx.EVT_KEY_DOWN, self.OnKeyDown, self.grid) |
| 448 |
|
| 449 |
self.grid.Subscribe(ROW_SELECTED, self.UpdateStatusText) |
| 450 |
|
| 451 |
def UpdateStatusText(self, rows=None): |
| 452 |
self.SetStatusText(_("%i rows (%i selected), %i columns") |
| 453 |
% (self.grid.GetNumberRows(), |
| 454 |
self.grid.GetNumberSelected(), |
| 455 |
self.grid.GetNumberCols())) |
| 456 |
|
| 457 |
def OnKeyDown(self, event): |
| 458 |
"""Catch query key from grid""" |
| 459 |
if event.AltDown() and event.GetKeyCode() == ord(QUERY_KEY): |
| 460 |
self.combo_fields.SetFocus() |
| 461 |
self.combo_fields.refocus = True |
| 462 |
else: |
| 463 |
event.Skip() |
| 464 |
|
| 465 |
def OnQuery(self, event): |
| 466 |
ThubanBeginBusyCursor() |
| 467 |
try: |
| 468 |
|
| 469 |
text = self.combo_value.GetValue() |
| 470 |
if self.combo_value.GetSelection() < 1 \ |
| 471 |
or self.combo_value.FindString(text) == -1: |
| 472 |
value = text |
| 473 |
else: |
| 474 |
value = self.table.Column(text) |
| 475 |
|
| 476 |
ids = self.table.SimpleQuery( |
| 477 |
self.table.Column(self.combo_fields.GetStringSelection()), |
| 478 |
self.choice_comp.GetStringSelection(), |
| 479 |
value) |
| 480 |
|
| 481 |
choice = self.choice_action.GetSelection() |
| 482 |
|
| 483 |
# |
| 484 |
# what used to be nice code got became a bit ugly because |
| 485 |
# each time we select a row a message is sent to the grid |
| 486 |
# which we are listening for and then we send further |
| 487 |
# messages. |
| 488 |
# |
| 489 |
# now, we disable those listeners select everything but |
| 490 |
# the first item, reenable the listeners, and select |
| 491 |
# the first element, which causes everything to be |
| 492 |
# updated properly. |
| 493 |
# |
| 494 |
if ids: |
| 495 |
self.grid.ToggleEventListeners(False) |
| 496 |
|
| 497 |
if choice == 0: |
| 498 |
# Replace Selection |
| 499 |
self.grid.ClearSelection() |
| 500 |
elif choice == 1: |
| 501 |
# Refine Selection |
| 502 |
sel = self.get_selected() |
| 503 |
self.grid.ClearSelection() |
| 504 |
ids = filter(sel.has_key, ids) |
| 505 |
elif choice == 2: |
| 506 |
# Add to Selection |
| 507 |
pass |
| 508 |
|
| 509 |
# |
| 510 |
# select the rows (all but the first) |
| 511 |
# |
| 512 |
firsttime = True |
| 513 |
for id in ids: |
| 514 |
if firsttime: |
| 515 |
firsttime = False |
| 516 |
else: |
| 517 |
self.grid.SelectRowById(id, True) |
| 518 |
|
| 519 |
self.grid.ToggleEventListeners(True) |
| 520 |
|
| 521 |
# |
| 522 |
# select the first row |
| 523 |
# |
| 524 |
if ids: |
| 525 |
self.grid.SelectRowById(ids[0], True) |
| 526 |
|
| 527 |
finally: |
| 528 |
ThubanEndBusyCursor() |
| 529 |
|
| 530 |
def doExport(self, onlySelected): |
| 531 |
|
| 532 |
dlg = wx.FileDialog(self, _("Export Table To"), ".", "", |
| 533 |
_("DBF Files (*.dbf)|*.dbf|") + |
| 534 |
_("CSV Files (*.csv)|*.csv|") + |
| 535 |
_("All Files (*.*)|*.*"), |
| 536 |
wx.SAVE|wx.OVERWRITE_PROMPT) |
| 537 |
if dlg.ShowModal() == wx.ID_OK: |
| 538 |
filename = dlg.GetPath() |
| 539 |
type = os.path.basename(filename).split('.')[-1:][0] |
| 540 |
dlg.Destroy() |
| 541 |
|
| 542 |
if onlySelected: |
| 543 |
records = self.grid.GetSelectedRows() |
| 544 |
else: |
| 545 |
records = None |
| 546 |
|
| 547 |
if type.upper() == "DBF": |
| 548 |
table_to_dbf(self.table, filename, records) |
| 549 |
elif type.upper() == 'CSV': |
| 550 |
table_to_csv(self.table, filename, records) |
| 551 |
else: |
| 552 |
dlg = wx.MessageDialog(None, "Unsupported format: %s" % type, |
| 553 |
"Table Export", wx.OK|wx.ICON_WARNING) |
| 554 |
dlg.ShowModal() |
| 555 |
dlg.Destroy() |
| 556 |
else: |
| 557 |
dlg.Destroy() |
| 558 |
|
| 559 |
def OnExport(self, event): |
| 560 |
self.doExport(False) |
| 561 |
|
| 562 |
def OnExportSel(self, event): |
| 563 |
self.doExport(True) |
| 564 |
|
| 565 |
def OnClose(self, event): |
| 566 |
TableFrame.OnClose(self, event) |
| 567 |
|
| 568 |
def get_selected(self): |
| 569 |
"""Return a dictionary of the selected rows. |
| 570 |
|
| 571 |
The dictionary has the indexes as keys.""" |
| 572 |
to_id = self.table.RowOrdinalToId |
| 573 |
return dict([(to_id(i), 0) for i in self.grid.GetSelectedRows()]) |
| 574 |
|
| 575 |
|
| 576 |
class LayerTableFrame(QueryTableFrame): |
| 577 |
|
| 578 |
"""Frame that displays a layer table in a grid view |
| 579 |
|
| 580 |
A LayerTableFrame is a QueryTableFrame whose selection is connected to the |
| 581 |
selected object in a map. |
| 582 |
""" |
| 583 |
|
| 584 |
def __init__(self, parent, name, title, layer, table): |
| 585 |
QueryTableFrame.__init__(self, parent, name, title, table) |
| 586 |
self.layer = layer |
| 587 |
self.grid.Subscribe(ROW_SELECTED, self.rows_selected) |
| 588 |
self.parent.Subscribe(SHAPES_SELECTED, self.select_shapes) |
| 589 |
self.map = self.parent.Map() |
| 590 |
self.map.Subscribe(MAP_LAYERS_REMOVED, self.map_layers_removed) |
| 591 |
|
| 592 |
# if there is already a selection present, update the grid |
| 593 |
# accordingly |
| 594 |
sel = self.get_selected().keys() |
| 595 |
for i in sel: |
| 596 |
self.grid.SelectRowById(i, True) |
| 597 |
|
| 598 |
def OnDestroy(self, event): |
| 599 |
"""Extend inherited method to unsubscribe messages""" |
| 600 |
# There's no need to unsubscribe from self.grid's messages |
| 601 |
# because it will get a DESTROY event too (since destroying the |
| 602 |
# frame basically means that all child windows are also |
| 603 |
# destroyed) and this it will clear all subscriptions |
| 604 |
# automatically. It may even have been destroyed already (this |
| 605 |
# does happen on w2000 for instance) so calling any of its |
| 606 |
# methods here would be an error. |
| 607 |
self.parent.Unsubscribe(SHAPES_SELECTED, self.select_shapes) |
| 608 |
self.map.Unsubscribe(MAP_LAYERS_REMOVED, self.map_layers_removed) |
| 609 |
QueryTableFrame.OnDestroy(self, event) |
| 610 |
|
| 611 |
def make_grid(self, table): |
| 612 |
"""Override the derived method to return a LayerTableGrid. |
| 613 |
""" |
| 614 |
return LayerTableGrid(self, table) |
| 615 |
|
| 616 |
def get_selected(self): |
| 617 |
"""Override the derived method to return a dictionary of the selected |
| 618 |
rows. |
| 619 |
""" |
| 620 |
return dict([(i, 0) for i in self.parent.SelectedShapes()]) |
| 621 |
|
| 622 |
def select_shapes(self, layer, shapes): |
| 623 |
"""Subscribed to the SHAPES_SELECTED message. |
| 624 |
|
| 625 |
If shapes contains exactly one shape id, select that shape in |
| 626 |
the grid. Otherwise deselect all. |
| 627 |
""" |
| 628 |
self.grid.select_shapes(layer, shapes) |
| 629 |
|
| 630 |
def rows_selected(self, rows): |
| 631 |
"""Return the selected rows of the layer as they are returned |
| 632 |
by Layer.SelectShapes(). |
| 633 |
""" |
| 634 |
if self.layer is not None: |
| 635 |
self.parent.SelectShapes(self.layer, rows) |
| 636 |
|
| 637 |
def map_layers_removed(self, *args): |
| 638 |
"""Receiver for the map's MAP_LAYERS_REMOVED message |
| 639 |
|
| 640 |
Close the dialog if the layer whose table we're showing is not |
| 641 |
in the map anymore. |
| 642 |
""" |
| 643 |
if self.layer not in self.map.Layers(): |
| 644 |
self.Close() |
| 645 |
|
Parent Directory
| 
Revision Log