/b-gtk/fix-viz

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Viewing changes to annotate/gannotate.py

  • Committer: Aaron Bentley
  • Date: 2006-06-21 16:07:11 UTC
  • mto: (66.6.5 gtk)
  • mto: This revision was merged to the branch mainline in revision 112.
  • Revision ID: abentley@panoramicfeedback.com-20060621160711-98a9d2254d2012e3
Gannotate takes a revision argument

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import gobject
22
22
import gtk
23
23
import pango
24
 
import re
25
24
 
26
 
from bzrlib import patiencediff, tsort
27
25
from bzrlib.errors import NoSuchRevision
28
 
from bzrlib.revision import NULL_REVISION, CURRENT_REVISION
 
26
from bzrlib.revision import NULL_REVISION
29
27
 
30
28
from colormap import AnnotateColorMap, AnnotateColorSaturation
31
 
from bzrlib.plugins.gtk.revisionview import RevisionView
32
 
from bzrlib.plugins.gtk.window import Window
 
29
from logview import LogView
 
30
from spanselector import SpanSelector
33
31
 
34
32
 
35
33
(
42
40
) = range(6)
43
41
 
44
42
 
45
 
class GAnnotateWindow(Window):
 
43
class GAnnotateWindow(gtk.Window):
46
44
    """Annotate window."""
47
45
 
48
 
    def __init__(self, all=False, plain=False, parent=None, branch=None):
 
46
    def __init__(self, all=False, plain=False):
49
47
        self.all = all
50
48
        self.plain = plain
51
 
        self._branch = branch
52
49
        
53
 
        Window.__init__(self, parent)
 
50
        gtk.Window.__init__(self, gtk.WINDOW_TOPLEVEL)
54
51
        
55
52
        self.set_icon(self.render_icon(gtk.STOCK_FIND, gtk.ICON_SIZE_BUTTON))
56
53
        self.annotate_colormap = AnnotateColorSaturation()
57
54
 
58
55
        self._create()
 
56
 
 
57
        if self.plain:
 
58
            self.span_selector.hide()
 
59
 
 
60
    def annotate(self, branch, file_id, revision_id=None):
59
61
        self.revisions = {}
60
 
        self.history = []
61
 
        self._no_back = set()
62
 
 
63
 
    def annotate(self, tree, branch, file_id):
64
62
        self.annotations = []
65
63
        self.branch = branch
66
 
        self.tree = tree
67
64
        self.file_id = file_id
68
 
        self.revisionview.set_file_id(file_id)
69
 
        self.revision_id = getattr(tree, 'get_revision_id', 
70
 
                                   lambda: CURRENT_REVISION)()
 
65
        self.revision_id = revision_id
71
66
        
72
 
        # [revision id, line number, author, revno, highlight color, line]
 
67
        # [revision id, line number, committer, revno, highlight color, line]
73
68
        self.annomodel = gtk.ListStore(gobject.TYPE_STRING,
74
69
                                       gobject.TYPE_STRING,
75
70
                                       gobject.TYPE_STRING,
81
76
        try:
82
77
            branch.lock_read()
83
78
            branch.repository.lock_read()
84
 
            self.dotted = {}
85
 
            revno_map = self.branch.get_revision_id_to_revno_map()
86
 
            for revision_id, revno in revno_map.iteritems():
87
 
                self.dotted[revision_id] = '.'.join(str(num) for num in revno)
88
79
            for line_no, (revision, revno, line)\
89
 
                    in enumerate(self._annotate(tree, file_id)):
 
80
                    in enumerate(self._annotate(branch, file_id, revision_id)):
90
81
                if revision.revision_id == last_seen and not self.all:
91
 
                    revno = author = ""
 
82
                    revno = committer = ""
92
83
                else:
93
84
                    last_seen = revision.revision_id
94
 
                    author = revision.get_apparent_author()
 
85
                    committer = revision.committer
95
86
 
96
87
                if revision.revision_id not in self.revisions:
97
88
                    self.revisions[revision.revision_id] = revision
98
89
 
99
90
                self.annomodel.append([revision.revision_id,
100
91
                                       line_no + 1,
101
 
                                       author,
 
92
                                       committer,
102
93
                                       revno,
103
94
                                       None,
104
95
                                       line.rstrip("\r\n")
106
97
                self.annotations.append(revision)
107
98
 
108
99
            if not self.plain:
109
 
                now = time.time()
110
 
                self.annomodel.foreach(self._highlight_annotation, now)
 
100
                self._set_oldest_newest()
 
101
                # Recall that calling activate_default will emit "span-changed",
 
102
                # so self._span_changed_cb will take care of initial highlighting
 
103
                self.span_selector.activate_default()
111
104
        finally:
112
105
            branch.repository.unlock()
113
106
            branch.unlock()
114
107
 
115
108
        self.annoview.set_model(self.annomodel)
116
109
        self.annoview.grab_focus()
117
 
        my_revno = self.dotted.get(self.revision_id, 'current')
118
 
        title = '%s (%s) - gannotate' % (self.tree.id2path(file_id), my_revno)
119
 
        self.set_title(title)
120
110
 
121
111
    def jump_to_line(self, lineno):
122
112
        if lineno > len(self.annomodel) or lineno < 1:
125
115
            # bar?
126
116
            print("gannotate: Line number %d does't exist. Defaulting to "
127
117
                  "line 1." % lineno)
128
 
            return
129
118
        else:
130
119
            row = lineno - 1
131
120
 
132
121
        self.annoview.set_cursor(row)
133
122
        self.annoview.scroll_to_cell(row, use_align=True)
134
123
 
135
 
 
136
 
    def _annotate(self, tree, file_id):
137
 
        current_revision = FakeRevision(CURRENT_REVISION)
138
 
        current_revision.committer = self.branch.get_config().username()
139
 
        current_revision.timestamp = time.time()
140
 
        current_revision.message = '[Not yet committed]'
141
 
        current_revision.parent_ids = tree.get_parent_ids()
142
 
        current_revision.properties['branch-nick'] = self.branch.nick
143
 
        current_revno = '%d?' % (self.branch.revno() + 1)
144
 
        repository = self.branch.repository
145
 
        if self.revision_id == CURRENT_REVISION:
146
 
            revision_id = self.branch.last_revision()
147
 
        else:
148
 
            revision_id = self.revision_id
149
 
        revision_cache = RevisionCache(repository, self.revisions)
150
 
        for origin, text in tree.annotate_iter(file_id):
 
124
    def _annotate(self, branch, file_id, revision_id):
 
125
        rev_hist = branch.revision_history()
 
126
        repository = branch.repository
 
127
        if revision_id is None:
 
128
            revision_id = branch.last_revision()
 
129
        rev_tree = repository.revision_tree(revision_id)
 
130
        revision_id = rev_tree.inventory[file_id].revision
 
131
        weave = repository.weave_store.get_weave(file_id,
 
132
                                                 branch.get_transaction())
 
133
        
 
134
        revision_cache = RevisionCache(repository)
 
135
        for origin, text in weave.annotate_iter(revision_id):
151
136
            rev_id = origin
152
 
            if rev_id == CURRENT_REVISION:
153
 
                revision = current_revision
154
 
                revno = current_revno
155
 
            else:
156
 
                try:
157
 
                    revision = revision_cache.get_revision(rev_id)
158
 
                    revno = self.dotted.get(rev_id, 'merge')
159
 
                    if len(revno) > 15:
160
 
                        revno = 'merge'
161
 
                except NoSuchRevision:
162
 
                    revision = FakeRevision(rev_id)
163
 
                    revno = "?"
 
137
            try:
 
138
                revision = revision_cache.get_revision(rev_id)
 
139
                if rev_id in rev_hist:
 
140
                    revno = branch.revision_id_to_revno(rev_id)
 
141
                else:
 
142
                    revno = "merge"
 
143
            except NoSuchRevision:
 
144
                revision = NoneRevision(rev_id)
 
145
                revno = "?"
164
146
 
165
147
            yield revision, revno, text
166
148
 
 
149
    def _set_oldest_newest(self):
 
150
        rev_dates = map(lambda i: self.revisions[i].timestamp, self.revisions)
 
151
        oldest = min(rev_dates)
 
152
        newest = max(rev_dates)
 
153
 
 
154
        span = self._span_from_seconds(time.time() - oldest)
 
155
        self.span_selector.set_to_oldest_span(span)
 
156
        
 
157
        span = self._span_from_seconds(newest - oldest)
 
158
        self.span_selector.set_newest_to_oldest_span(span)
 
159
 
 
160
    def _span_from_seconds(self, seconds):
 
161
        return (seconds / (24 * 60 * 60))
 
162
    
 
163
    def _span_changed_cb(self, w, span):
 
164
        self.annotate_colormap.set_span(span)
 
165
        now = time.time()
 
166
        self.annomodel.foreach(self._highlight_annotation, now)
 
167
 
167
168
    def _highlight_annotation(self, model, path, iter, now):
168
169
        revision_id, = model.get(iter, REVISION_ID_COL)
169
170
        revision = self.revisions[revision_id]
170
171
        model.set(iter, HIGHLIGHT_COLOR_COL,
171
172
                  self.annotate_colormap.get_color(revision, now))
172
173
 
173
 
    def _selected_revision(self):
 
174
    def _show_log(self, w):
174
175
        (path, col) = self.annoview.get_cursor()
175
 
        if path is None:
176
 
            return None
177
 
        return self.annomodel[path][REVISION_ID_COL]
178
 
 
179
 
    def _activate_selected_revision(self, w):
180
 
        rev_id = self._selected_revision()
181
 
        if not rev_id or rev_id == NULL_REVISION:
182
 
            return
183
 
        selected = self.revisions[rev_id]
184
 
        self.revisionview.set_revision(selected)
185
 
        if (len(selected.parent_ids) != 0 and selected.parent_ids[0] not in
186
 
            self._no_back):
187
 
            enable_back = True
188
 
        else:
189
 
            enable_back = False
190
 
        self.back_button.set_sensitive(enable_back)
 
176
        rev_id = self.annomodel[path][REVISION_ID_COL]
 
177
        self.logview.set_revision(self.revisions[rev_id])
191
178
 
192
179
    def _create(self):
193
 
        self.revisionview = self._create_log_view()
 
180
        self.logview = self._create_log_view()
194
181
        self.annoview = self._create_annotate_view()
 
182
        self.span_selector = self._create_span_selector()
195
183
 
196
 
        vbox = gtk.VBox(False)
 
184
        vbox = gtk.VBox(False, 12)
 
185
        vbox.set_border_width(12)
197
186
        vbox.show()
198
187
 
199
188
        sw = gtk.ScrolledWindow()
202
191
        sw.add(self.annoview)
203
192
        self.annoview.gwindow = self
204
193
        sw.show()
205
 
 
206
 
        swbox = gtk.VBox()
207
 
        swbox.pack_start(sw)
208
 
        swbox.show()
209
 
 
210
 
        hbox = gtk.HBox(False, 6)
211
 
        self.back_button = self._create_back_button()
212
 
        hbox.pack_start(self.back_button, expand=False, fill=True)
213
 
        self.forward_button = self._create_forward_button()
214
 
        hbox.pack_start(self.forward_button, expand=False, fill=True)
215
 
        hbox.show()
216
 
        vbox.pack_start(hbox, expand=False, fill=True)
217
194
        
218
195
        self.pane = pane = gtk.VPaned()
219
 
        pane.add1(swbox)
220
 
        pane.add2(self.revisionview)
 
196
        pane.add1(sw)
 
197
        pane.add2(self.logview)
221
198
        pane.show()
222
199
        vbox.pack_start(pane, expand=True, fill=True)
223
 
 
224
 
        self._search = SearchBox()
225
 
        swbox.pack_start(self._search, expand=False, fill=True)
226
 
        accels = gtk.AccelGroup()
227
 
        accels.connect_group(gtk.keysyms.f, gtk.gdk.CONTROL_MASK,
228
 
                             gtk.ACCEL_LOCKED,
229
 
                             self._search_by_text)
230
 
        accels.connect_group(gtk.keysyms.g, gtk.gdk.CONTROL_MASK,
231
 
                             gtk.ACCEL_LOCKED,
232
 
                             self._search_by_line)
233
 
        self.add_accel_group(accels)
 
200
        
 
201
        hbox = gtk.HBox(True, 6)
 
202
        hbox.pack_start(self.span_selector, expand=False, fill=True)
 
203
        hbox.pack_start(self._create_button_box(), expand=False, fill=True)
 
204
        hbox.show()
 
205
        vbox.pack_start(hbox, expand=False, fill=True)
234
206
 
235
207
        self.add(vbox)
236
208
 
237
 
    def _search_by_text(self, accel_group, window, key, modifiers):
238
 
        self._search.show_for('text')
239
 
        self._search.set_target(self.annoview, TEXT_LINE_COL)
240
 
 
241
 
    def _search_by_line(self, accel_group, window, key, modifiers):
242
 
        self._search.show_for('line')
243
 
        self._search.set_target(self.annoview, LINE_NUM_COL)
244
 
 
245
 
    def line_diff(self, tv, path, tvc):
 
209
    def row_diff(self, tv, path, tvc):
246
210
        row = path[0]
247
211
        revision = self.annotations[row]
248
212
        repository = self.branch.repository
249
 
        if revision.revision_id == CURRENT_REVISION:
250
 
            tree1 = self.tree
251
 
            tree2 = self.tree.basis_tree()
 
213
        tree1 = repository.revision_tree(revision.revision_id)
 
214
        if len(revision.parent_ids) > 0:
 
215
            tree2 = repository.revision_tree(revision.parent_ids[0])
252
216
        else:
253
 
            tree1 = repository.revision_tree(revision.revision_id)
254
 
            if len(revision.parent_ids) > 0:
255
 
                tree2 = repository.revision_tree(revision.parent_ids[0])
256
 
            else:
257
 
                tree2 = repository.revision_tree(NULL_REVISION)
258
 
        from bzrlib.plugins.gtk.diff import DiffWindow
 
217
            tree2 = repository.revision_tree(NULL_REVISION)
 
218
        from bzrlib.plugins.gtk.viz.diffwin import DiffWindow
259
219
        window = DiffWindow()
260
 
        window.set_diff("Diff for line %d" % (row+1), tree1, tree2)
 
220
        window.set_diff("Diff for row %d" % (row+1), tree1, tree2)
261
221
        window.set_file(tree1.id2path(self.file_id))
262
222
        window.show()
263
223
 
265
225
    def _create_annotate_view(self):
266
226
        tv = gtk.TreeView()
267
227
        tv.set_rules_hint(False)
268
 
        tv.connect("cursor-changed", self._activate_selected_revision)
 
228
        tv.connect("cursor-changed", self._show_log)
269
229
        tv.show()
270
 
        tv.connect("row-activated", self.line_diff)
 
230
        tv.connect("row-activated", self.row_diff)
271
231
 
272
232
        cell = gtk.CellRendererText()
273
233
        cell.set_property("xalign", 1.0)
314
274
        col.add_attribute(cell, "text", TEXT_LINE_COL)
315
275
        tv.append_column(col)
316
276
 
317
 
        # FIXME: Now that C-f is now used for search by text we
318
 
        # may as well disable the auto search.
319
277
        tv.set_search_column(LINE_NUM_COL)
320
 
 
 
278
        
321
279
        return tv
322
280
 
 
281
    def _create_span_selector(self):
 
282
        ss = SpanSelector()
 
283
        ss.connect("span-changed", self._span_changed_cb)
 
284
        ss.show()
 
285
 
 
286
        return ss
 
287
 
323
288
    def _create_log_view(self):
324
 
        lv = RevisionView(self._branch)
 
289
        lv = LogView()
325
290
        lv.show()
 
291
 
326
292
        return lv
327
293
 
328
 
    def _create_back_button(self):
329
 
        button = gtk.Button()
330
 
        button.set_use_stock(True)
331
 
        button.set_label("gtk-go-back")
332
 
        button.connect("clicked", lambda w: self.go_back())
333
 
        button.set_relief(gtk.RELIEF_NONE)
334
 
        button.show()
335
 
        return button
336
 
 
337
 
    def _create_forward_button(self):
338
 
        button = gtk.Button()
339
 
        button.set_use_stock(True)
340
 
        button.set_label("gtk-go-forward")
341
 
        button.connect("clicked", lambda w: self.go_forward())
342
 
        button.set_relief(gtk.RELIEF_NONE)
343
 
        button.show()
344
 
        button.set_sensitive(False)
345
 
        return button
346
 
 
347
 
    def go_back(self):
348
 
        last_tree = self.tree
349
 
        rev_id = self._selected_revision()
350
 
        parent_id = self.revisions[rev_id].parent_ids[0]
351
 
        target_tree = self.branch.repository.revision_tree(parent_id)
352
 
        if self._go(target_tree):
353
 
            self.history.append(last_tree)
354
 
            self.forward_button.set_sensitive(True)
355
 
        else:
356
 
            self._no_back.add(parent_id)
357
 
            self.back_button.set_sensitive(False)
358
 
 
359
 
    def go_forward(self):
360
 
        if len(self.history) == 0:
361
 
            return
362
 
        target_tree = self.history.pop()
363
 
        if len(self.history) == 0:
364
 
            self.forward_button.set_sensitive(False)
365
 
        self._go(target_tree)
366
 
 
367
 
    def _go(self, target_tree):
368
 
        rev_id = self._selected_revision()
369
 
        if self.file_id in target_tree:
370
 
            offset = self.get_scroll_offset(target_tree)
371
 
            (row,), col = self.annoview.get_cursor()
372
 
            self.annotate(target_tree, self.branch, self.file_id)
373
 
            new_row = row+offset
374
 
            if new_row < 0:
375
 
                new_row = 0
376
 
            self.annoview.set_cursor(new_row)
377
 
            return True
378
 
        else:
379
 
            return False
380
 
 
381
 
    def get_scroll_offset(self, tree):
382
 
        old = self.tree.get_file(self.file_id)
383
 
        new = tree.get_file(self.file_id)
384
 
        (row,), col = self.annoview.get_cursor()
385
 
        matcher = patiencediff.PatienceSequenceMatcher(None, old.readlines(),
386
 
                                                       new.readlines())
387
 
        for i, j, n in matcher.get_matching_blocks():
388
 
            if i + n >= row:
389
 
                return j - i
390
 
 
391
 
 
392
 
class FakeRevision:
 
294
    def _create_button_box(self):
 
295
        box = gtk.HButtonBox()
 
296
        box.set_layout(gtk.BUTTONBOX_END)
 
297
        box.show()
 
298
        
 
299
        button = gtk.Button()
 
300
        button.set_use_stock(True)
 
301
        button.set_label("gtk-close")
 
302
        button.connect("clicked", lambda w: self.destroy())
 
303
        button.show()
 
304
        
 
305
        box.pack_start(button, expand=False, fill=False)
 
306
 
 
307
        return box
 
308
 
 
309
 
 
310
class NoneRevision:
393
311
    """ A fake revision.
394
312
 
395
313
    For when a revision is referenced but not present.
396
314
    """
397
315
 
398
 
    def __init__(self, revision_id, committer='?', nick=None):
 
316
    def __init__(self, revision_id):
399
317
        self.revision_id = revision_id
400
318
        self.parent_ids = []
401
 
        self.committer = committer
 
319
        self.committer = "?"
402
320
        self.message = "?"
403
321
        self.timestamp = 0.0
404
322
        self.timezone = 0
405
 
        self.properties = {}
406
 
 
407
 
    def get_apparent_author(self):
408
 
        return self.committer
409
323
 
410
324
 
411
325
class RevisionCache(object):
412
326
    """A caching revision source"""
413
 
    def __init__(self, real_source, seed_cache=None):
 
327
    def __init__(self, real_source):
414
328
        self.__real_source = real_source
415
 
        if seed_cache is None:
416
 
            self.__cache = {}
417
 
        else:
418
 
            self.__cache = dict(seed_cache)
 
329
        self.__cache = {}
419
330
 
420
331
    def get_revision(self, revision_id):
421
332
        if revision_id not in self.__cache:
422
333
            revision = self.__real_source.get_revision(revision_id)
423
334
            self.__cache[revision_id] = revision
424
335
        return self.__cache[revision_id]
425
 
 
426
 
class SearchBox(gtk.HBox):
427
 
    """A button box for searching in text or lines of annotations"""
428
 
    def __init__(self):
429
 
        gtk.HBox.__init__(self, False, 6)
430
 
 
431
 
        # Close button
432
 
        button = gtk.Button()
433
 
        image = gtk.Image()
434
 
        image.set_from_stock('gtk-stop', gtk.ICON_SIZE_BUTTON)
435
 
        button.set_image(image)
436
 
        button.set_relief(gtk.RELIEF_NONE)
437
 
        button.connect("clicked", lambda w: self.hide_all())
438
 
        self.pack_start(button, expand=False, fill=False)
439
 
 
440
 
        # Search entry
441
 
        label = gtk.Label()
442
 
        self._label = label
443
 
        self.pack_start(label, expand=False, fill=False)
444
 
 
445
 
        entry = gtk.Entry()
446
 
        self._entry = entry
447
 
        entry.connect("activate", lambda w, d: self._do_search(d),
448
 
                      'forward')
449
 
        self.pack_start(entry, expand=False, fill=False)
450
 
 
451
 
        # Next/previous buttons
452
 
        button = gtk.Button('_Next')
453
 
        image = gtk.Image()
454
 
        image.set_from_stock('gtk-go-forward', gtk.ICON_SIZE_BUTTON)
455
 
        button.set_image(image)
456
 
        button.connect("clicked", lambda w, d: self._do_search(d),
457
 
                       'forward')
458
 
        self.pack_start(button, expand=False, fill=False)
459
 
 
460
 
        button = gtk.Button('_Previous')
461
 
        image = gtk.Image()
462
 
        image.set_from_stock('gtk-go-back', gtk.ICON_SIZE_BUTTON)
463
 
        button.set_image(image)
464
 
        button.connect("clicked", lambda w, d: self._do_search(d),
465
 
                       'backward')
466
 
        self.pack_start(button, expand=False, fill=False)
467
 
 
468
 
        # Search options
469
 
        check = gtk.CheckButton('Match case')
470
 
        self._match_case = check
471
 
        self.pack_start(check, expand=False, fill=False)
472
 
 
473
 
        check = gtk.CheckButton('Regexp')
474
 
        check.connect("toggled", lambda w: self._set_label())
475
 
        self._regexp = check
476
 
        self.pack_start(check, expand=False, fill=False)
477
 
 
478
 
        self._view = None
479
 
        self._column = None
480
 
        # Note that we stay hidden (we do not call self.show_all())
481
 
 
482
 
 
483
 
    def show_for(self, kind):
484
 
        self._kind = kind
485
 
        self.show_all()
486
 
        self._set_label()
487
 
        # Hide unrelated buttons
488
 
        if kind == 'line':
489
 
            self._match_case.hide()
490
 
            self._regexp.hide()
491
 
        # Be ready
492
 
        self._entry.grab_focus()
493
 
 
494
 
    def _set_label(self):
495
 
        if self._kind == 'line':
496
 
            self._label.set_text('Find Line: ')
497
 
        else:
498
 
            if self._regexp.get_active():
499
 
                self._label.set_text('Find Regexp: ')
500
 
            else:
501
 
                self._label.set_text('Find Text: ')
502
 
 
503
 
    def set_target(self, view,column):
504
 
        self._view = view
505
 
        self._column = column
506
 
 
507
 
    def _match(self, model, iterator, column):
508
 
        matching_case = self._match_case.get_active()
509
 
        string, = model.get(iterator, column)
510
 
        key = self._entry.get_text()
511
 
        if self._regexp.get_active():
512
 
            if matching_case:
513
 
                match = re.compile(key).search(string, 1)
514
 
            else:
515
 
                match = re.compile(key, re.I).search(string, 1)
516
 
        else:
517
 
            if not matching_case:
518
 
                string = string.lower()
519
 
                key = key.lower()
520
 
            match = string.find(key) != -1
521
 
 
522
 
        return match
523
 
 
524
 
    def _iterate_rows_forward(self, model, start):
525
 
        model_size = len(model)
526
 
        current = start + 1
527
 
        while model_size != 0:
528
 
            if current >= model_size: current =  0
529
 
            yield model.get_iter_from_string('%d' % current)
530
 
            if current == start: raise StopIteration
531
 
            current += 1
532
 
 
533
 
    def _iterate_rows_backward(self, model, start):
534
 
        model_size = len(model)
535
 
        current = start - 1
536
 
        while model_size != 0:
537
 
            if current < 0: current = model_size - 1
538
 
            yield model.get_iter_from_string('%d' % current)
539
 
            if current == start: raise StopIteration
540
 
            current -= 1
541
 
 
542
 
    def _do_search(self, direction):
543
 
        if direction == 'forward':
544
 
            iterate = self._iterate_rows_forward
545
 
        else:
546
 
            iterate = self._iterate_rows_backward
547
 
 
548
 
        model, sel = self._view.get_selection().get_selected()
549
 
        if sel is None:
550
 
            start = 0
551
 
        else:
552
 
            path = model.get_string_from_iter(sel)
553
 
            start = int(path)
554
 
 
555
 
        for row in iterate(model, start):
556
 
            if self._match(model, row, self._column):
557
 
                path = model.get_path(row)
558
 
                self._view.set_cursor(path)
559
 
                self._view.scroll_to_cell(path, use_align=True)
560
 
                break