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Viewing changes to branchview/treeview.py

  • Committer: Jelmer Vernooij
  • Date: 2008-03-28 19:26:53 UTC
  • mto: (450.1.13 trunk)
  • mto: This revision was merged to the branch mainline in revision 458.
  • Revision ID: jelmer@samba.org-20080328192653-trzptkwahx1tulz9
Add module for preferences code.

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branchview/treeview.py
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"""
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__copyright__ = "Copyright © 2005 Canonical Ltd."
 
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__copyright__ = "Copyright � 2005 Canonical Ltd."
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7
__author__    = "Daniel Schierbeck <daniel.schierbeck@gmail.com>"
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8
 
9
 
from gi.repository import Gtk
10
 
from gi.repository import GObject
11
 
from gi.repository import Pango
 
9
import sys
 
10
import string
 
11
import gtk
 
12
import gobject
 
13
import pango
 
14
import re
 
15
import treemodel
12
16
 
13
 
from bzrlib import ui
 
17
from linegraph import linegraph, same_branch
 
18
from graphcell import CellRendererGraph
 
19
from treemodel import TreeModel
14
20
from bzrlib.revision import NULL_REVISION
15
21
 
16
 
from bzrlib.plugins.gtk import lock
17
 
from bzrlib.plugins.gtk.ui import ProgressPanel
18
 
from bzrlib.plugins.gtk.branchview import treemodel
19
 
from bzrlib.plugins.gtk.branchview.linegraph import linegraph, same_branch
20
 
from bzrlib.plugins.gtk.branchview.graphcell import CellRendererGraph
21
 
 
22
 
 
23
 
class TreeView(Gtk.VBox):
 
22
class TreeView(gtk.VBox):
24
23
 
25
24
    __gproperties__ = {
26
 
        'branch': (GObject.TYPE_PYOBJECT,
 
25
        'branch': (gobject.TYPE_PYOBJECT,
27
26
                   'Branch',
28
27
                   'The Bazaar branch being visualized',
29
 
                   GObject.PARAM_CONSTRUCT_ONLY | GObject.PARAM_WRITABLE),
 
28
                   gobject.PARAM_CONSTRUCT_ONLY | gobject.PARAM_WRITABLE),
30
29
 
31
 
        'revision': (GObject.TYPE_PYOBJECT,
 
30
        'revision': (gobject.TYPE_PYOBJECT,
32
31
                     'Revision',
33
32
                     'The currently selected revision',
34
 
                     GObject.PARAM_READWRITE),
 
33
                     gobject.PARAM_READWRITE),
35
34
 
36
 
        'revision-number': (GObject.TYPE_STRING,
 
35
        'revision-number': (gobject.TYPE_STRING,
37
36
                            'Revision number',
38
37
                            'The number of the selected revision',
39
38
                            '',
40
 
                            GObject.PARAM_READABLE),
 
39
                            gobject.PARAM_READABLE),
41
40
 
42
 
        'children': (GObject.TYPE_PYOBJECT,
 
41
        'children': (gobject.TYPE_PYOBJECT,
43
42
                     'Child revisions',
44
43
                     'Children of the currently selected revision',
45
 
                     GObject.PARAM_READABLE),
 
44
                     gobject.PARAM_READABLE),
46
45
 
47
 
        'parents': (GObject.TYPE_PYOBJECT,
 
46
        'parents': (gobject.TYPE_PYOBJECT,
48
47
                    'Parent revisions',
49
48
                    'Parents to the currently selected revision',
50
 
                    GObject.PARAM_READABLE),
 
49
                    gobject.PARAM_READABLE),
51
50
 
52
 
        'revno-column-visible': (GObject.TYPE_BOOLEAN,
 
51
        'revno-column-visible': (gobject.TYPE_BOOLEAN,
53
52
                                 'Revision number column',
54
53
                                 'Show revision number column',
55
54
                                 True,
56
 
                                 GObject.PARAM_READWRITE),
 
55
                                 gobject.PARAM_READWRITE),
57
56
 
58
 
        'graph-column-visible': (GObject.TYPE_BOOLEAN,
 
57
        'graph-column-visible': (gobject.TYPE_BOOLEAN,
59
58
                                 'Graph column',
60
59
                                 'Show graph column',
61
60
                                 True,
62
 
                                 GObject.PARAM_READWRITE),
 
61
                                 gobject.PARAM_READWRITE),
63
62
 
64
 
        'date-column-visible': (GObject.TYPE_BOOLEAN,
 
63
        'date-column-visible': (gobject.TYPE_BOOLEAN,
65
64
                                 'Date',
66
65
                                 'Show date column',
67
66
                                 False,
68
 
                                 GObject.PARAM_READWRITE),
 
67
                                 gobject.PARAM_READWRITE),
69
68
 
70
 
        'compact': (GObject.TYPE_BOOLEAN,
 
69
        'compact': (gobject.TYPE_BOOLEAN,
71
70
                    'Compact view',
72
71
                    'Break ancestry lines to save space',
73
72
                    True,
74
 
                    GObject.PARAM_CONSTRUCT | GObject.PARAM_READWRITE),
 
73
                    gobject.PARAM_CONSTRUCT | gobject.PARAM_READWRITE),
75
74
 
76
 
        'mainline-only': (GObject.TYPE_BOOLEAN,
 
75
        'mainline-only': (gobject.TYPE_BOOLEAN,
77
76
                    'Mainline only',
78
77
                    'Only show the mainline history.',
79
78
                    False,
80
 
                    GObject.PARAM_CONSTRUCT | GObject.PARAM_READWRITE),
 
79
                    gobject.PARAM_CONSTRUCT | gobject.PARAM_READWRITE),
81
80
 
82
81
    }
83
82
 
84
83
    __gsignals__ = {
85
 
        'revision-selected': (GObject.SignalFlags.RUN_FIRST,
86
 
                              None,
 
84
        'revisions-loaded': (gobject.SIGNAL_RUN_FIRST, 
 
85
                             gobject.TYPE_NONE,
 
86
                             ()),
 
87
        'revision-selected': (gobject.SIGNAL_RUN_FIRST,
 
88
                              gobject.TYPE_NONE,
87
89
                              ()),
88
 
        'revision-activated': (GObject.SignalFlags.RUN_FIRST,
89
 
                              None,
90
 
                              (GObject.TYPE_PYOBJECT, GObject.TYPE_PYOBJECT)),
91
 
        'tag-added': (GObject.SignalFlags.RUN_FIRST,
92
 
                              None,
93
 
                              (GObject.TYPE_STRING, GObject.TYPE_STRING)),
94
 
        'refreshed': (GObject.SignalFlags.RUN_FIRST, None,
95
 
                              ())
 
90
        'revision-activated': (gobject.SIGNAL_RUN_FIRST,
 
91
                              gobject.TYPE_NONE,
 
92
                              (gobject.TYPE_PYOBJECT, gobject.TYPE_PYOBJECT)),
 
93
        'tag-added': (gobject.SIGNAL_RUN_FIRST,
 
94
                              gobject.TYPE_NONE,
 
95
                              (gobject.TYPE_STRING, gobject.TYPE_STRING))
96
96
    }
97
97
 
98
98
    def __init__(self, branch, start, maxnum, compact=True):
105
105
        :param broken_line_length: After how much lines to break 
106
106
                                   branches.
107
107
        """
108
 
        GObject.GObject.__init__(self, spacing=0)
109
 
 
110
 
        self.progress_widget = ProgressPanel()
111
 
        self.pack_start(self.progress_widget, expand=False, fill=True)
112
 
        if getattr(ui.ui_factory, "set_progress_bar_widget", None) is not None:
113
 
            # We'are using our own ui, let's tell it to use our widget.
114
 
            ui.ui_factory.set_progress_bar_widget(self.progress_widget)
115
 
 
116
 
        self.scrolled_window = Gtk.ScrolledWindow()
117
 
        self.scrolled_window.set_policy(Gtk.PolicyType.AUTOMATIC,
118
 
                                        Gtk.PolicyType.AUTOMATIC)
119
 
        self.scrolled_window.set_shadow_type(Gtk.ShadowType.IN)
 
108
        gtk.VBox.__init__(self, spacing=0)
 
109
 
 
110
        self.pack_start(self.construct_loading_msg(), expand=False, fill=True)
 
111
        self.connect('revisions-loaded', 
 
112
                lambda x: self.loading_msg_box.hide())
 
113
 
 
114
        self.scrolled_window = gtk.ScrolledWindow()
 
115
        self.scrolled_window.set_policy(gtk.POLICY_AUTOMATIC,
 
116
                                        gtk.POLICY_AUTOMATIC)
 
117
        self.scrolled_window.set_shadow_type(gtk.SHADOW_IN)
120
118
        self.scrolled_window.show()
121
119
        self.pack_start(self.scrolled_window, expand=True, fill=True)
122
120
 
123
121
        self.scrolled_window.add(self.construct_treeview())
 
122
        
124
123
 
125
 
        self.path = None
 
124
        self.iter = None
126
125
        self.branch = branch
127
126
        self.revision = None
128
 
        self.index = {}
129
127
 
130
128
        self.start = start
131
129
        self.maxnum = maxnum
132
130
        self.compact = compact
133
131
 
134
 
        self.model = treemodel.TreeModel(self.branch, [])
135
 
        GObject.idle_add(self.populate)
136
 
 
137
 
        self.connect("destroy", self._on_destroy)
138
 
 
139
 
    def _on_destroy(self, *ignored):
140
 
        self.branch.unlock()
141
 
        if getattr(ui.ui_factory, "set_progress_bar_widget", None) is not None:
142
 
            # We'are using our own ui, let's tell it to stop using our widget.
143
 
            ui.ui_factory.set_progress_bar_widget(None)
 
132
        gobject.idle_add(self.populate)
 
133
 
 
134
        self.connect("destroy", lambda x: self.branch.unlock())
144
135
 
145
136
    def do_get_property(self, property):
146
137
        if property.name == 'revno-column-visible':
156
147
        elif property.name == 'branch':
157
148
            return self.branch
158
149
        elif property.name == 'revision':
159
 
            if self.path is None:
160
 
                return None
161
 
            return self.model.get_value(self.model.get_iter(self.path),
162
 
                                        treemodel.REVISION)
 
150
            return self.model.get_value(self.iter, treemodel.REVISION)
163
151
        elif property.name == 'revision-number':
164
 
            if self.path is None:
165
 
                return None
166
 
            return self.model.get_value(self.model.get_iter(self.path),
167
 
                                        treemodel.REVNO)
 
152
            return self.model.get_value(self.iter, treemodel.REVNO)
168
153
        elif property.name == 'children':
169
 
            if self.path is None:
170
 
                return None
171
 
            return self.model.get_value(self.model.get_iter(self.path),
172
 
                                        treemodel.CHILDREN)
 
154
            return self.model.get_value(self.iter, treemodel.CHILDREN)
173
155
        elif property.name == 'parents':
174
 
            if self.path is None:
175
 
                return None
176
 
            return self.model.get_value(self.model.get_iter(self.path),
177
 
                                        treemodel.PARENTS)
 
156
            return self.model.get_value(self.iter, treemodel.PARENTS)
178
157
        else:
179
158
            raise AttributeError, 'unknown property %s' % property.name
180
159
 
200
179
        """Return revision id of currently selected revision, or None."""
201
180
        return self.get_property('revision')
202
181
 
203
 
    def has_revision_id(self, revision_id):
204
 
        return (revision_id in self.index)
205
 
 
206
182
    def set_revision(self, revision):
207
183
        self.set_property('revision', revision)
208
184
 
231
207
    def add_tag(self, tag, revid=None):
232
208
        if revid is None: revid = self.revision.revision_id
233
209
 
234
 
        if lock.release(self.branch):
 
210
        try:
 
211
            self.branch.unlock()
 
212
 
235
213
            try:
236
 
                lock.acquire(self.branch, lock.WRITE)
 
214
                self.branch.lock_write()
237
215
                self.model.add_tag(tag, revid)
238
216
            finally:
239
 
                lock.release(self.branch)
240
 
 
241
 
            lock.acquire(self.branch, lock.READ)
242
 
 
243
 
            self.emit('tag-added', tag, revid)
244
 
 
 
217
                self.branch.unlock()
 
218
 
 
219
        finally:
 
220
            self.branch.lock_read()
 
221
 
 
222
        self.emit('tag-added', tag, revid)
 
223
        
245
224
    def refresh(self):
246
 
        GObject.idle_add(self.populate, self.get_revision())
 
225
        self.loading_msg_box.show()
 
226
        gobject.idle_add(self.populate, self.get_revision())
247
227
 
248
228
    def update(self):
249
229
        try:
296
276
                       should be broken.
297
277
        """
298
278
 
299
 
        if getattr(ui.ui_factory, "set_progress_bar_widget", None) is not None:
300
 
            # We'are using our own ui, let's tell it to use our widget.
301
 
            ui.ui_factory.set_progress_bar_widget(self.progress_widget)
302
 
        self.progress_bar = ui.ui_factory.nested_progress_bar()
303
 
        self.progress_bar.update("Loading ancestry graph", 0, 5)
304
 
 
305
 
        try:
306
 
            if self.compact:
307
 
                broken_line_length = 32
308
 
            else:
309
 
                broken_line_length = None
310
 
 
311
 
            show_graph = self.graph_column.get_visible()
312
 
 
313
 
            self.branch.lock_read()
314
 
            (linegraphdata, index, columns_len) = linegraph(self.branch.repository.get_graph(),
315
 
                                                            self.start,
316
 
                                                            self.maxnum, 
317
 
                                                            broken_line_length,
318
 
                                                            show_graph,
319
 
                                                            self.mainline_only,
320
 
                                                            self.progress_bar)
321
 
 
322
 
            self.model.line_graph_data = linegraphdata
323
 
            self.graph_cell.columns_len = columns_len
324
 
            width = self.graph_cell.get_size(self.treeview)[2]
325
 
            if width > 500:
326
 
                width = 500
327
 
            self.graph_column.set_fixed_width(width)
328
 
            self.graph_column.set_max_width(width)
329
 
            self.index = index
330
 
            self.treeview.set_model(self.model)
331
 
 
332
 
            if not revision or revision == NULL_REVISION:
333
 
                self.treeview.set_cursor(0)
334
 
            else:
335
 
                self.set_revision(revision)
336
 
 
337
 
            self.emit('refreshed')
338
 
            return False
339
 
        finally:
340
 
            self.progress_bar.finished()
 
279
        if self.compact:
 
280
            broken_line_length = 32
 
281
        else:
 
282
            broken_line_length = None
 
283
        
 
284
        show_graph = self.graph_column.get_visible()
 
285
 
 
286
        self.branch.lock_read()
 
287
        (linegraphdata, index, columns_len) = linegraph(self.branch.repository,
 
288
                                                        self.start,
 
289
                                                        self.maxnum, 
 
290
                                                        broken_line_length,
 
291
                                                        show_graph,
 
292
                                                        self.mainline_only)
 
293
 
 
294
        self.model = TreeModel(self.branch, linegraphdata)
 
295
        self.graph_cell.columns_len = columns_len
 
296
        width = self.graph_cell.get_size(self.treeview)[2]
 
297
        if width > 500:
 
298
            width = 500
 
299
        self.graph_column.set_fixed_width(width)
 
300
        self.graph_column.set_max_width(width)
 
301
        self.index = index
 
302
        self.treeview.set_model(self.model)
 
303
 
 
304
        if revision is None:
 
305
            self.treeview.set_cursor(0)
 
306
        else:
 
307
            self.set_revision(revision)
 
308
 
 
309
        self.emit('revisions-loaded')
 
310
 
 
311
        return False
341
312
 
342
313
    def construct_treeview(self):
343
 
        self.treeview = Gtk.TreeView()
 
314
        self.treeview = gtk.TreeView()
344
315
 
345
316
        self.treeview.set_rules_hint(True)
346
 
        # combined revno/summary interactive search
347
 
        #
348
 
        # the row in a treemodel is considered "matched" if a REVNO *starts*
349
 
        # from the key (that is the key is found in a REVNO at the offset 0)
350
 
        # or if a MESSAGE *contains* the key anywhere (that is, the key is
351
 
        # found case insensitively in a MESSAGE at any offset)
352
 
        def search_equal_func(model, column, key, iter):
353
 
            return (model.get_value(iter, treemodel.REVNO).find(key) != 0
354
 
                and model.get_value(iter, treemodel.MESSAGE).lower().find(key.lower()) == -1)
355
 
 
356
 
        self.treeview.set_search_equal_func(search_equal_func)
357
 
        self.treeview.set_enable_search(True)
358
 
 
359
 
        set_tooltip(treemodel.MESSAGE)
360
 
 
361
 
        self._prev_cursor_path = None
 
317
        self.treeview.set_search_column(treemodel.REVNO)
 
318
        
 
319
        # Fix old PyGTK bug - by JAM
 
320
        set_tooltip = getattr(self.treeview, 'set_tooltip_column', None)
 
321
        if set_tooltip is not None:
 
322
            set_tooltip(treemodel.MESSAGE)
 
323
 
362
324
        self.treeview.connect("cursor-changed",
363
325
                self._on_selection_changed)
364
326
 
372
334
 
373
335
        self.treeview.show()
374
336
 
375
 
        cell = Gtk.CellRendererText()
 
337
        cell = gtk.CellRendererText()
376
338
        cell.set_property("width-chars", 15)
377
 
        cell.set_property("ellipsize", Pango.EllipsizeMode.END)
378
 
        self.revno_column = Gtk.TreeViewColumn("Revision No")
 
339
        cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 
340
        self.revno_column = gtk.TreeViewColumn("Revision No")
379
341
        self.revno_column.set_resizable(True)
380
 
        self.revno_column.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
 
342
        self.revno_column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
381
343
        self.revno_column.set_fixed_width(cell.get_size(self.treeview)[2])
382
 
        self.revno_column.pack_start(cell, True, True, 0)
 
344
        self.revno_column.pack_start(cell, expand=True)
383
345
        self.revno_column.add_attribute(cell, "text", treemodel.REVNO)
384
346
        self.treeview.append_column(self.revno_column)
385
347
 
386
348
        self.graph_cell = CellRendererGraph()
387
 
        self.graph_column = Gtk.TreeViewColumn()
 
349
        self.graph_column = gtk.TreeViewColumn()
388
350
        self.graph_column.set_resizable(True)
389
 
        self.graph_column.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
390
 
        self.graph_column.pack_start(self.graph_cell, True, True, 0)
 
351
        self.graph_column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
 
352
        self.graph_column.pack_start(self.graph_cell, expand=False)
391
353
        self.graph_column.add_attribute(self.graph_cell, "node", treemodel.NODE)
392
354
        self.graph_column.add_attribute(self.graph_cell, "tags", treemodel.TAGS)
393
355
        self.graph_column.add_attribute(self.graph_cell, "in-lines", treemodel.LAST_LINES)
394
356
        self.graph_column.add_attribute(self.graph_cell, "out-lines", treemodel.LINES)
395
357
        self.treeview.append_column(self.graph_column)
396
358
 
397
 
        cell = Gtk.CellRendererText()
 
359
        cell = gtk.CellRendererText()
398
360
        cell.set_property("width-chars", 65)
399
 
        cell.set_property("ellipsize", Pango.EllipsizeMode.END)
400
 
        self.summary_column = Gtk.TreeViewColumn("Summary")
 
361
        cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 
362
        self.summary_column = gtk.TreeViewColumn("Summary")
401
363
        self.summary_column.set_resizable(True)
402
 
        self.summary_column.set_expand(True)
403
 
        self.summary_column.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
 
364
        self.summary_column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
404
365
        self.summary_column.set_fixed_width(cell.get_size(self.treeview)[2])
405
 
        self.summary_column.pack_start(cell, True, True, 0)
 
366
        self.summary_column.pack_start(cell, expand=True)
406
367
        self.summary_column.add_attribute(cell, "markup", treemodel.SUMMARY)
407
368
        self.treeview.append_column(self.summary_column)
408
369
 
409
 
        cell = Gtk.CellRendererText()
 
370
        cell = gtk.CellRendererText()
410
371
        cell.set_property("width-chars", 15)
411
 
        cell.set_property("ellipsize", Pango.EllipsizeMode.END)
412
 
        self.authors_column = Gtk.TreeViewColumn("Author(s)")
413
 
        self.authors_column.set_resizable(False)
414
 
        self.authors_column.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
415
 
        self.authors_column.set_fixed_width(200)
416
 
        self.authors_column.pack_start(cell, True, True, 0)
417
 
        self.authors_column.add_attribute(cell, "text", treemodel.AUTHORS)
418
 
        self.treeview.append_column(self.authors_column)
 
372
        cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 
373
        self.committer_column = gtk.TreeViewColumn("Committer")
 
374
        self.committer_column.set_resizable(True)
 
375
        self.committer_column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
 
376
        self.committer_column.set_fixed_width(cell.get_size(self.treeview)[2])
 
377
        self.committer_column.pack_start(cell, expand=True)
 
378
        self.committer_column.add_attribute(cell, "text", treemodel.COMMITTER)
 
379
        self.treeview.append_column(self.committer_column)
419
380
 
420
 
        cell = Gtk.CellRendererText()
 
381
        cell = gtk.CellRendererText()
421
382
        cell.set_property("width-chars", 20)
422
 
        cell.set_property("ellipsize", Pango.EllipsizeMode.END)
423
 
        self.date_column = Gtk.TreeViewColumn("Date")
 
383
        cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 
384
        self.date_column = gtk.TreeViewColumn("Date")
424
385
        self.date_column.set_visible(False)
425
386
        self.date_column.set_resizable(True)
426
 
        self.date_column.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
427
 
        self.date_column.set_fixed_width(130)
428
 
        self.date_column.pack_start(cell, True, True, 0)
 
387
        self.date_column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
 
388
        self.date_column.set_fixed_width(cell.get_size(self.treeview)[2])
 
389
        self.date_column.pack_start(cell, expand=True)
429
390
        self.date_column.add_attribute(cell, "text", treemodel.TIMESTAMP)
430
391
        self.treeview.append_column(self.date_column)
431
 
 
 
392
        
432
393
        return self.treeview
 
394
    
 
395
    def construct_loading_msg(self):
 
396
        image_loading = gtk.image_new_from_stock(gtk.STOCK_REFRESH,
 
397
                                                 gtk.ICON_SIZE_BUTTON)
 
398
        image_loading.show()
 
399
        
 
400
        label_loading = gtk.Label(_("Please wait, loading ancestral graph..."))
 
401
        label_loading.set_alignment(0.0, 0.5)
 
402
        label_loading.show()
 
403
        
 
404
        self.loading_msg_box = gtk.HBox()
 
405
        self.loading_msg_box.set_spacing(5)
 
406
        self.loading_msg_box.set_border_width(5)        
 
407
        self.loading_msg_box.pack_start(image_loading, False, False)
 
408
        self.loading_msg_box.pack_start(label_loading, True, True)
 
409
        self.loading_msg_box.show()
 
410
        
 
411
        return self.loading_msg_box
433
412
 
434
413
    def _on_selection_changed(self, treeview):
435
414
        """callback for when the treeview changes."""
436
415
        (path, focus) = treeview.get_cursor()
437
 
        if (path is not None) and (path != self._prev_cursor_path):
438
 
            self._prev_cursor_path = path # avoid emitting twice per click
439
 
            self.path = path
 
416
        if path is not None:
 
417
            self.iter = self.model.get_iter(path)
440
418
            self.emit('revision-selected')
441
419
 
442
420
    def _on_revision_selected(self, widget, event):
443
 
        from bzrlib.plugins.gtk.revisionmenu import RevisionMenu
 
421
        from bzrlib.plugins.gtk.revisionmenu import RevisionPopupMenu
444
422
        if event.button == 3:
445
 
            menu = RevisionMenu(self.branch.repository, 
 
423
            menu = RevisionPopupMenu(self.branch.repository, 
446
424
                [self.get_revision().revision_id],
447
425
                self.branch)
448
426
            menu.connect('tag-added', lambda w, t, r: self.add_tag(t, r))