/b-gtk/fix-viz

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Viewing changes to annotate/gannotate.py

  • Committer: Jelmer Vernooij
  • Date: 2011-12-20 16:47:38 UTC
  • Revision ID: jelmer@canonical.com-20111220164738-l6tgnbttkxmq6877
Cope with some strings being unicode when returned by some versions of gtk.

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annotate/gannotate.py
 
1
# Copyright (C) 2005 Dan Loda <danloda@gmail.com>
 
2
 
 
3
# This program is free software; you can redistribute it and/or modify
 
4
# it under the terms of the GNU General Public License as published by
 
5
# the Free Software Foundation; either version 2 of the License, or
 
6
# (at your option) any later version.
 
7
 
 
8
# This program is distributed in the hope that it will be useful,
 
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
11
# GNU General Public License for more details.
 
12
 
 
13
# You should have received a copy of the GNU General Public License
 
14
# along with this program; if not, write to the Free Software
 
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
16
 
 
17
import time
 
18
 
 
19
from gi.repository import GObject
 
20
from gi.repository import Gdk
 
21
from gi.repository import Gtk
 
22
from gi.repository import Pango
 
23
import re
 
24
 
 
25
from bzrlib import patiencediff
 
26
from bzrlib.errors import NoSuchRevision
 
27
from bzrlib.revision import NULL_REVISION, CURRENT_REVISION
 
28
 
 
29
from bzrlib.plugins.gtk.annotate.colormap import AnnotateColorSaturation
 
30
from bzrlib.plugins.gtk.revisionview import RevisionView
 
31
from bzrlib.plugins.gtk.window import Window
 
32
 
 
33
 
 
34
(
 
35
    REVISION_ID_COL,
 
36
    LINE_NUM_COL,
 
37
    COMMITTER_COL,
 
38
    REVNO_COL,
 
39
    HIGHLIGHT_COLOR_COL,
 
40
    TEXT_LINE_COL
 
41
) = range(6)
 
42
 
 
43
 
 
44
class GAnnotateWindow(Window):
 
45
    """Annotate window."""
 
46
 
 
47
    def __init__(self, all=False, plain=False, parent=None, branch=None):
 
48
        self.all = all
 
49
        self.plain = plain
 
50
        self._branch = branch
 
51
 
 
52
        super(GAnnotateWindow, self).__init__(parent=parent)
 
53
 
 
54
        self.set_icon(
 
55
            self.render_icon_pixbuf(Gtk.STOCK_FIND, Gtk.IconSize.BUTTON))
 
56
        self.annotate_colormap = AnnotateColorSaturation()
 
57
 
 
58
        self._create()
 
59
        self.revisions = {}
 
60
        self.history = []
 
61
        self._no_back = set()
 
62
 
 
63
    def annotate(self, tree, branch, file_id):
 
64
        self.annotations = []
 
65
        self.branch = branch
 
66
        self.tree = tree
 
67
        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)()
 
71
 
 
72
        # [revision id, line number, author, revno, highlight color, line]
 
73
        self.annomodel = Gtk.ListStore(GObject.TYPE_STRING,
 
74
                                       GObject.TYPE_INT,
 
75
                                       GObject.TYPE_STRING,
 
76
                                       GObject.TYPE_STRING,
 
77
                                       GObject.TYPE_STRING,
 
78
                                       GObject.TYPE_STRING)
 
79
 
 
80
        last_seen = None
 
81
        try:
 
82
            branch.lock_read()
 
83
            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
            for line_no, (revision, revno, line)\
 
89
                in enumerate(self._annotate(tree, file_id)):
 
90
                if revision.revision_id == last_seen and not self.all:
 
91
                    revno = author = ""
 
92
                else:
 
93
                    last_seen = revision.revision_id
 
94
                    author = ", ".join(revision.get_apparent_authors())
 
95
 
 
96
                if revision.revision_id not in self.revisions:
 
97
                    self.revisions[revision.revision_id] = revision
 
98
 
 
99
                self.annomodel.append([revision.revision_id,
 
100
                                       line_no + 1,
 
101
                                       author,
 
102
                                       revno,
 
103
                                       None,
 
104
                                       line.rstrip("\r\n")
 
105
                                       ])
 
106
                self.annotations.append(revision)
 
107
 
 
108
            if not self.plain:
 
109
                now = time.time()
 
110
                self.annomodel.foreach(self._highlight_annotation, now)
 
111
        finally:
 
112
            branch.repository.unlock()
 
113
            branch.unlock()
 
114
 
 
115
        self.annoview.set_model(self.annomodel)
 
116
        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
 
 
121
    def jump_to_line(self, lineno):
 
122
        if lineno > len(self.annomodel) or lineno < 1:
 
123
            row = 0
 
124
            # FIXME:should really deal with this in the gui. Perhaps a status
 
125
            # bar?
 
126
            print("gannotate: Line number %d does't exist. Defaulting to "
 
127
                  "line 1." % lineno)
 
128
            return
 
129
        else:
 
130
            row = lineno - 1
 
131
 
 
132
        tree_path = Gtk.TreePath(path=row)
 
133
        self.annoview.set_cursor(tree_path, None, False)
 
134
        self.annoview.scroll_to_cell(tree_path, use_align=True)
 
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._get_nick(local=True)
 
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):
 
151
            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 = "?"
 
164
 
 
165
            yield revision, revno, text
 
166
 
 
167
    def _highlight_annotation(self, model, path, iter, now):
 
168
        revision_id, = model.get(iter, REVISION_ID_COL)
 
169
        revision = self.revisions[revision_id]
 
170
        # XXX sinzui 2011-08-12: What does get_color return?
 
171
        color = self.annotate_colormap.get_color(revision, now)
 
172
        model.set_value(iter, HIGHLIGHT_COLOR_COL, color)
 
173
 
 
174
    def _selected_revision(self):
 
175
        (path, col) = self.annoview.get_cursor()
 
176
        if path is None:
 
177
            return None
 
178
        return self.annomodel[path][REVISION_ID_COL]
 
179
 
 
180
    def _activate_selected_revision(self, w):
 
181
        rev_id = self._selected_revision()
 
182
        if not rev_id or rev_id == NULL_REVISION:
 
183
            return
 
184
        selected = self.revisions[rev_id]
 
185
        self.revisionview.set_revision(selected)
 
186
        if (len(selected.parent_ids) != 0 and selected.parent_ids[0] not in
 
187
            self._no_back):
 
188
            enable_back = True
 
189
        else:
 
190
            enable_back = False
 
191
        self.back_button.set_sensitive(enable_back)
 
192
 
 
193
    def _create(self):
 
194
        self.revisionview = self._create_log_view()
 
195
        self.annoview = self._create_annotate_view()
 
196
 
 
197
        vbox = Gtk.VBox(homogeneous=False, spacing=0)
 
198
        vbox.show()
 
199
 
 
200
        sw = Gtk.ScrolledWindow()
 
201
        sw.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)
 
202
        sw.set_shadow_type(Gtk.ShadowType.IN)
 
203
        sw.add(self.annoview)
 
204
        self.annoview.gwindow = self
 
205
        sw.show()
 
206
 
 
207
        swbox = Gtk.VBox()
 
208
        swbox.pack_start(sw, True, True, 0)
 
209
        swbox.show()
 
210
 
 
211
        hbox = Gtk.HBox(homogeneous=False, spacing=6)
 
212
        self.back_button = self._create_back_button()
 
213
        hbox.pack_start(self.back_button, False, True, 0)
 
214
        self.forward_button = self._create_forward_button()
 
215
        hbox.pack_start(self.forward_button, False, True, 0)
 
216
        self.find_button = self._create_find_button()
 
217
        hbox.pack_start(self.find_button, False, True, 0)
 
218
        self.goto_button = self._create_goto_button()
 
219
        hbox.pack_start(self.goto_button, False, True, 0)
 
220
        hbox.show()
 
221
        vbox.pack_start(hbox, False, True, 0)
 
222
 
 
223
        self.pane = pane = Gtk.VPaned()
 
224
        pane.add1(swbox)
 
225
        pane.add2(self.revisionview)
 
226
        pane.show()
 
227
        vbox.pack_start(pane, True, True, 0)
 
228
 
 
229
        self._search = SearchBox()
 
230
        swbox.pack_start(self._search, False, True, 0)
 
231
        accels = Gtk.AccelGroup()
 
232
        accels.connect(Gdk.KEY_f, Gdk.ModifierType.CONTROL_MASK,
 
233
                             Gtk.AccelFlags.LOCKED,
 
234
                             self._search_by_text)
 
235
        accels.connect(Gdk.KEY_g, Gdk.ModifierType.CONTROL_MASK,
 
236
                             Gtk.AccelFlags.LOCKED,
 
237
                             self._search_by_line)
 
238
        self.add_accel_group(accels)
 
239
 
 
240
        self.add(vbox)
 
241
 
 
242
    def _search_by_text(self, *ignored): # (accel_group, window, key, modifiers):
 
243
        self._search.show_for('text')
 
244
        self._search.set_target(self.annoview, TEXT_LINE_COL)
 
245
 
 
246
    def _search_by_line(self, *ignored): # accel_group, window, key, modifiers):
 
247
        self._search.show_for('line')
 
248
        self._search.set_target(self.annoview, LINE_NUM_COL)
 
249
 
 
250
    def line_diff(self, tv, path, tvc):
 
251
        row = path.get_indices()[0]
 
252
        revision = self.annotations[row]
 
253
        repository = self.branch.repository
 
254
        if revision.revision_id == CURRENT_REVISION:
 
255
            tree1 = self.tree
 
256
            tree2 = self.tree.basis_tree()
 
257
        else:
 
258
            tree1 = repository.revision_tree(revision.revision_id)
 
259
            if len(revision.parent_ids) > 0:
 
260
                tree2 = repository.revision_tree(revision.parent_ids[0])
 
261
            else:
 
262
                tree2 = repository.revision_tree(NULL_REVISION)
 
263
        from bzrlib.plugins.gtk.diff import DiffWindow
 
264
        window = DiffWindow(self)
 
265
        window.set_diff("Diff for line %d" % (row+1), tree1, tree2)
 
266
        window.set_file(tree1.id2path(self.file_id))
 
267
        window.show()
 
268
 
 
269
 
 
270
    def _create_annotate_view(self):
 
271
        tv = Gtk.TreeView()
 
272
        tv.set_rules_hint(False)
 
273
        tv.connect("cursor-changed", self._activate_selected_revision)
 
274
        tv.show()
 
275
        tv.connect("row-activated", self.line_diff)
 
276
 
 
277
        cell = Gtk.CellRendererText()
 
278
        cell.set_property("xalign", 1.0)
 
279
        cell.set_property("ypad", 0)
 
280
        cell.set_property("family", "Monospace")
 
281
        cell.set_property("cell-background-gdk",
 
282
                          tv.get_style().bg[Gtk.StateType.NORMAL])
 
283
        col = Gtk.TreeViewColumn()
 
284
        col.set_resizable(False)
 
285
        col.pack_start(cell, True)
 
286
        col.add_attribute(cell, "text", LINE_NUM_COL)
 
287
        tv.append_column(col)
 
288
 
 
289
        cell = Gtk.CellRendererText()
 
290
        cell.set_property("ypad", 0)
 
291
        cell.set_property("ellipsize", Pango.EllipsizeMode.END)
 
292
        cell.set_property("cell-background-gdk",
 
293
                          self.get_style().bg[Gtk.StateType.NORMAL])
 
294
        col = Gtk.TreeViewColumn("Committer")
 
295
        col.set_resizable(True)
 
296
        col.pack_start(cell, True)
 
297
        col.add_attribute(cell, "text", COMMITTER_COL)
 
298
        tv.append_column(col)
 
299
 
 
300
        cell = Gtk.CellRendererText()
 
301
        cell.set_property("xalign", 1.0)
 
302
        cell.set_property("ypad", 0)
 
303
        cell.set_property("cell-background-gdk",
 
304
                          self.get_style().bg[Gtk.StateType.NORMAL])
 
305
        col = Gtk.TreeViewColumn("Revno")
 
306
        col.set_resizable(False)
 
307
        col.pack_start(cell, True)
 
308
        col.add_attribute(cell, "markup", REVNO_COL)
 
309
        tv.append_column(col)
 
310
 
 
311
        cell = Gtk.CellRendererText()
 
312
        cell.set_property("ypad", 0)
 
313
        cell.set_property("family", "Monospace")
 
314
        col = Gtk.TreeViewColumn()
 
315
        col.set_resizable(False)
 
316
        col.pack_start(cell, True)
 
317
#        col.add_attribute(cell, "foreground", HIGHLIGHT_COLOR_COL)
 
318
        col.add_attribute(cell, "background", HIGHLIGHT_COLOR_COL)
 
319
        col.add_attribute(cell, "text", TEXT_LINE_COL)
 
320
        tv.append_column(col)
 
321
 
 
322
        # interactive substring search
 
323
        def search_equal_func(model, column, key, iter):
 
324
            return model.get_value(iter, TEXT_LINE_COL).lower().find(key.lower()) == -1
 
325
 
 
326
        tv.set_enable_search(True)
 
327
        tv.set_search_equal_func(search_equal_func, None)
 
328
 
 
329
        return tv
 
330
 
 
331
    def _create_log_view(self):
 
332
        lv = RevisionView(self._branch)
 
333
        lv.show()
 
334
        return lv
 
335
 
 
336
    def _create_back_button(self):
 
337
        button = Gtk.Button()
 
338
        button.set_use_stock(True)
 
339
        button.set_label("gtk-go-back")
 
340
        button.connect("clicked", lambda w: self.go_back())
 
341
        button.set_relief(Gtk.ReliefStyle.NONE)
 
342
        button.show()
 
343
        return button
 
344
 
 
345
    def _create_forward_button(self):
 
346
        button = Gtk.Button()
 
347
        button.set_use_stock(True)
 
348
        button.set_label("gtk-go-forward")
 
349
        button.connect("clicked", lambda w: self.go_forward())
 
350
        button.set_relief(Gtk.ReliefStyle.NONE)
 
351
        button.show()
 
352
        button.set_sensitive(False)
 
353
        return button
 
354
 
 
355
    def _create_find_button(self):
 
356
        button = Gtk.Button()
 
357
        button.set_use_stock(True)
 
358
        button.set_label("gtk-find")
 
359
        button.set_tooltip_text("Search for text (Ctrl+F)")
 
360
        button.connect("clicked", self._search_by_text)
 
361
        button.set_relief(Gtk.ReliefStyle.NONE)
 
362
        button.show()
 
363
        button.set_sensitive(True)
 
364
        return button
 
365
 
 
366
    def _create_goto_button(self):
 
367
        button = Gtk.Button()
 
368
        button.set_label("Goto Line")
 
369
        button.set_tooltip_text("Scroll to a line by entering its number (Ctrl+G)")
 
370
        button.connect("clicked", self._search_by_line)
 
371
        button.set_relief(Gtk.ReliefStyle.NONE)
 
372
        button.show()
 
373
        button.set_sensitive(True)
 
374
        return button
 
375
 
 
376
    def go_back(self):
 
377
        last_tree = self.tree
 
378
        rev_id = self._selected_revision()
 
379
        parent_id = self.revisions[rev_id].parent_ids[0]
 
380
        target_tree = self.branch.repository.revision_tree(parent_id)
 
381
        if self._go(target_tree):
 
382
            self.history.append(last_tree)
 
383
            self.forward_button.set_sensitive(True)
 
384
        else:
 
385
            self._no_back.add(parent_id)
 
386
            self.back_button.set_sensitive(False)
 
387
 
 
388
    def go_forward(self):
 
389
        if len(self.history) == 0:
 
390
            return
 
391
        target_tree = self.history.pop()
 
392
        if len(self.history) == 0:
 
393
            self.forward_button.set_sensitive(False)
 
394
        self._go(target_tree)
 
395
 
 
396
    def _go(self, target_tree):
 
397
        rev_id = self._selected_revision()
 
398
        if self.file_id in target_tree:
 
399
            offset = self.get_scroll_offset(target_tree)
 
400
            path, col = self.annoview.get_cursor()
 
401
            (row,) = path.get_indices()
 
402
            self.annotate(target_tree, self.branch, self.file_id)
 
403
            new_row = row+offset
 
404
            if new_row < 0:
 
405
                new_row = 0
 
406
            new_path = Gtk.TreePath(path=new_row)
 
407
            self.annoview.set_cursor(new_path, None, False)
 
408
            return True
 
409
        else:
 
410
            return False
 
411
 
 
412
    def get_scroll_offset(self, tree):
 
413
        old = self.tree.get_file(self.file_id)
 
414
        new = tree.get_file(self.file_id)
 
415
        path, col = self.annoview.get_cursor()
 
416
        (row,) = path.get_indices()
 
417
        matcher = patiencediff.PatienceSequenceMatcher(None, old.readlines(),
 
418
                                                       new.readlines())
 
419
        for i, j, n in matcher.get_matching_blocks():
 
420
            if i + n >= row:
 
421
                return j - i
 
422
 
 
423
 
 
424
class FakeRevision(object):
 
425
    """ A fake revision.
 
426
 
 
427
    For when a revision is referenced but not present.
 
428
    """
 
429
 
 
430
    def __init__(self, revision_id, committer='?', nick=None):
 
431
        self.revision_id = revision_id
 
432
        self.parent_ids = []
 
433
        self.committer = committer
 
434
        self.message = "?"
 
435
        self.timestamp = 0.0
 
436
        self.timezone = 0
 
437
        self.properties = {}
 
438
 
 
439
    def get_apparent_authors(self):
 
440
        return [self.committer]
 
441
 
 
442
 
 
443
class RevisionCache(object):
 
444
    """A caching revision source"""
 
445
 
 
446
    def __init__(self, real_source, seed_cache=None):
 
447
        self.__real_source = real_source
 
448
        if seed_cache is None:
 
449
            self.__cache = {}
 
450
        else:
 
451
            self.__cache = dict(seed_cache)
 
452
 
 
453
    def get_revision(self, revision_id):
 
454
        if revision_id not in self.__cache:
 
455
            revision = self.__real_source.get_revision(revision_id)
 
456
            self.__cache[revision_id] = revision
 
457
        return self.__cache[revision_id]
 
458
 
 
459
 
 
460
class SearchBox(Gtk.HBox):
 
461
    """A button box for searching in text or lines of annotations"""
 
462
    def __init__(self):
 
463
        super(SearchBox, self).__init__(homogeneous=False, spacing=6)
 
464
 
 
465
        # Close button
 
466
        button = Gtk.Button()
 
467
        image = Gtk.Image()
 
468
        image.set_from_stock('gtk-stop', Gtk.IconSize.BUTTON)
 
469
        button.set_image(image)
 
470
        button.set_relief(Gtk.ReliefStyle.NONE)
 
471
        button.connect("clicked", lambda w: self.hide())
 
472
        self.pack_start(button, False, False, 0)
 
473
 
 
474
        # Search entry
 
475
        label = Gtk.Label()
 
476
        self._label = label
 
477
        self.pack_start(label, False, False, 0)
 
478
 
 
479
        entry = Gtk.Entry()
 
480
        self._entry = entry
 
481
        entry.connect("activate", lambda w, d: self._do_search(d),
 
482
                      'forward')
 
483
        self.pack_start(entry, False, False, 0)
 
484
 
 
485
        # Next/previous buttons
 
486
        button = Gtk.Button('_Next')
 
487
        image = Gtk.Image()
 
488
        image.set_from_stock('gtk-go-forward', Gtk.IconSize.BUTTON)
 
489
        button.set_image(image)
 
490
        button.connect("clicked", lambda w, d: self._do_search(d),
 
491
                       'forward')
 
492
        self.pack_start(button, False, False, 0)
 
493
 
 
494
        button = Gtk.Button('_Previous')
 
495
        image = Gtk.Image()
 
496
        image.set_from_stock('gtk-go-back', Gtk.IconSize.BUTTON)
 
497
        button.set_image(image)
 
498
        button.connect("clicked", lambda w, d: self._do_search(d),
 
499
                       'backward')
 
500
        self.pack_start(button, False, False, 0)
 
501
 
 
502
        # Search options
 
503
        check = Gtk.CheckButton('Match case')
 
504
        self._match_case = check
 
505
        self.pack_start(check, False, False, 0)
 
506
 
 
507
        check = Gtk.CheckButton('Regexp')
 
508
        check.connect("toggled", lambda w: self._set_label())
 
509
        self._regexp = check
 
510
        self.pack_start(check, False, False, 0)
 
511
 
 
512
        self._view = None
 
513
        self._column = None
 
514
        # Note that we stay hidden (we do not call self.show_all())
 
515
 
 
516
 
 
517
    def show_for(self, kind):
 
518
        self._kind = kind
 
519
        self.show_all()
 
520
        self._set_label()
 
521
        # Hide unrelated buttons
 
522
        if kind == 'line':
 
523
            self._match_case.hide()
 
524
            self._regexp.hide()
 
525
        # Be ready
 
526
        self._entry.grab_focus()
 
527
 
 
528
    def _set_label(self):
 
529
        if self._kind == 'line':
 
530
            self._label.set_text('Find Line: ')
 
531
        else:
 
532
            if self._regexp.get_active():
 
533
                self._label.set_text('Find Regexp: ')
 
534
            else:
 
535
                self._label.set_text('Find Text: ')
 
536
 
 
537
    def set_target(self, view,column):
 
538
        self._view = view
 
539
        self._column = column
 
540
 
 
541
    def _match(self, model, iterator, column):
 
542
        matching_case = self._match_case.get_active()
 
543
        cell_value, = model.get(iterator, column)
 
544
        key = self._entry.get_text()
 
545
        if column == LINE_NUM_COL:
 
546
            # FIXME: For goto-line there are faster algorithms than searching 
 
547
            # every line til we find the right one! -- mbp 2011-01-27
 
548
            return key.strip() == str(cell_value)
 
549
        elif self._regexp.get_active():
 
550
            if matching_case:
 
551
                match = re.compile(key).search(cell_value, 1)
 
552
            else:
 
553
                match = re.compile(key, re.I).search(cell_value, 1)
 
554
        else:
 
555
            if not matching_case:
 
556
                cell_value = cell_value.lower()
 
557
                key = key.lower()
 
558
            match = cell_value.find(key) != -1
 
559
 
 
560
        return match
 
561
 
 
562
    def _iterate_rows_forward(self, model, start):
 
563
        model_size = len(model)
 
564
        current = start + 1
 
565
        while model_size != 0:
 
566
            if current >= model_size: current =  0
 
567
            yield model.get_iter_from_string('%d' % current)
 
568
            if current == start: raise StopIteration
 
569
            current += 1
 
570
 
 
571
    def _iterate_rows_backward(self, model, start):
 
572
        model_size = len(model)
 
573
        current = start - 1
 
574
        while model_size != 0:
 
575
            if current < 0: current = model_size - 1
 
576
            yield model.get_iter_from_string('%d' % current)
 
577
            if current == start: raise StopIteration
 
578
            current -= 1
 
579
 
 
580
    def _do_search(self, direction):
 
581
        if direction == 'forward':
 
582
            iterate = self._iterate_rows_forward
 
583
        else:
 
584
            iterate = self._iterate_rows_backward
 
585
 
 
586
        model, sel = self._view.get_selection().get_selected()
 
587
        if sel is None:
 
588
            start = 0
 
589
        else:
 
590
            path = model.get_string_from_iter(sel)
 
591
            start = int(path)
 
592
 
 
593
        for row in iterate(model, start):
 
594
            if self._match(model, row, self._column):
 
595
                path = model.get_path(row)
 
596
                self._view.set_cursor(path, None, False)
 
597
                self._view.scroll_to_cell(path, use_align=True)
 
598
                break