/b-gtk/fix-viz

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  • Committer: Jasper Groenewegen
  • Date: 2008-07-27 12:01:40 UTC
  • mfrom: (576.3.2 improve-merge)
  • mto: This revision was merged to the branch mainline in revision 579.
  • Revision ID: colbrac@xs4all.nl-20080727120140-1agdlzkc9fumjk5f
Merge merge dialog improvements

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viz/branchwin.py
13
13
import gobject
14
14
import pango
15
15
 
16
 
from bzrlib.plugins.gtk.window import Window
 
16
from bzrlib.plugins.gtk import icon_path
 
17
from bzrlib.plugins.gtk.branchview import TreeView, treemodel
17
18
from bzrlib.plugins.gtk.tags import AddTagDialog
18
19
from bzrlib.plugins.gtk.preferences import PreferencesWindow
19
 
from bzrlib.plugins.gtk.branchview import TreeView
20
 
from bzrlib.revision import Revision
21
 
from bzrlib.config import BranchConfig
22
 
from bzrlib.config import GlobalConfig
 
20
from bzrlib.plugins.gtk.revisionmenu import RevisionMenu
 
21
from bzrlib.plugins.gtk.window import Window
 
22
 
 
23
from bzrlib.config import BranchConfig, GlobalConfig
 
24
from bzrlib.revision import Revision, NULL_REVISION
 
25
from bzrlib.trace import mutter
23
26
 
24
27
class BranchWindow(Window):
25
28
    """Branch window.
28
31
    for a particular branch.
29
32
    """
30
33
 
31
 
    def __init__(self, branch, start, maxnum, parent=None):
 
34
    def __init__(self, branch, start_revs, maxnum, parent=None):
32
35
        """Create a new BranchWindow.
33
36
 
34
37
        :param branch: Branch object for branch to show.
35
 
        :param start: Revision id of top revision.
 
38
        :param start_revs: Revision ids of top revisions.
36
39
        :param maxnum: Maximum number of revisions to display, 
37
40
                       None for no limit.
38
41
        """
41
44
        self.set_border_width(0)
42
45
 
43
46
        self.branch      = branch
44
 
        self.start       = start
 
47
        self.start_revs  = start_revs
45
48
        self.maxnum      = maxnum
46
49
        self.config      = GlobalConfig()
47
50
 
 
51
        self._sizes      = {} # window and widget sizes
 
52
 
48
53
        if self.config.get_user_option('viz-compact-view') == 'yes':
49
54
            self.compact_view = True
50
55
        else:
52
57
 
53
58
        self.set_title(branch.nick + " - revision history")
54
59
 
55
 
        # Use three-quarters of the screen by default
56
 
        screen = self.get_screen()
57
 
        monitor = screen.get_monitor_geometry(0)
58
 
        width = int(monitor.width * 0.75)
59
 
        height = int(monitor.height * 0.75)
 
60
        # user-configured window size
 
61
        size = self._load_size('viz-window-size')
 
62
        if size:
 
63
            width, height = size
 
64
        else:
 
65
            # Use three-quarters of the screen by default
 
66
            screen = self.get_screen()
 
67
            monitor = screen.get_monitor_geometry(0)
 
68
            width = int(monitor.width * 0.75)
 
69
            height = int(monitor.height * 0.75)
60
70
        self.set_default_size(width, height)
 
71
        self.set_size_request(width/3, height/3)
 
72
        self.connect("size-allocate", self._on_size_allocate, 'viz-window-size')
61
73
 
62
74
        # FIXME AndyFitz!
63
75
        icon = self.render_icon(gtk.STOCK_INDEX, gtk.ICON_SIZE_BUTTON)
65
77
 
66
78
        gtk.accel_map_add_entry("<viz>/Go/Next Revision", gtk.keysyms.Up, gtk.gdk.MOD1_MASK)
67
79
        gtk.accel_map_add_entry("<viz>/Go/Previous Revision", gtk.keysyms.Down, gtk.gdk.MOD1_MASK)
 
80
        gtk.accel_map_add_entry("<viz>/View/Refresh", gtk.keysyms.F5, 0)
68
81
 
69
82
        self.accel_group = gtk.AccelGroup()
70
83
        self.add_accel_group(self.accel_group)
83
96
        self.next_rev_action.connect("activate", self._fwd_clicked_cb)
84
97
        self.next_rev_action.connect_accelerator()
85
98
 
 
99
        self.refresh_action = gtk.Action("refresh", "_Refresh", "Refresh view", gtk.STOCK_REFRESH)
 
100
        self.refresh_action.set_accel_path("<viz>/View/Refresh")
 
101
        self.refresh_action.set_accel_group(self.accel_group)
 
102
        self.refresh_action.connect("activate", self._refresh_clicked)
 
103
        self.refresh_action.connect_accelerator()
 
104
 
86
105
        self.construct()
87
106
 
88
107
    def set_revision(self, revid):
94
113
        self.add(vbox)
95
114
 
96
115
        self.paned = gtk.VPaned()
97
 
        self.paned.pack1(self.construct_top(), resize=True, shrink=False)
98
 
        self.paned.pack2(self.construct_bottom(), resize=False, shrink=True)
 
116
        self.paned.pack1(self.construct_top(), resize=False, shrink=True)
 
117
        self.paned.pack2(self.construct_bottom(), resize=True, shrink=False)
99
118
        self.paned.show()
100
119
 
101
 
        vbox.pack_start(self.construct_menubar(), expand=False, fill=True)
102
 
        vbox.pack_start(self.construct_navigation(), expand=False, fill=True)
103
 
        
 
120
        nav = self.construct_navigation()
 
121
        menubar = self.construct_menubar()
 
122
        vbox.pack_start(menubar, expand=False, fill=True)
 
123
        vbox.pack_start(nav, expand=False, fill=True)
 
124
 
104
125
        vbox.pack_start(self.paned, expand=True, fill=True)
105
126
        vbox.set_focus_child(self.paned)
106
127
 
107
128
        vbox.show()
108
 
 
 
129
    
109
130
    def construct_menubar(self):
110
131
        menubar = gtk.MenuBar()
111
132
 
127
148
        edit_menuitem = gtk.MenuItem("_Edit")
128
149
        edit_menuitem.set_submenu(edit_menu)
129
150
 
130
 
        edit_menu_find = gtk.ImageMenuItem(gtk.STOCK_FIND)
131
 
 
132
151
        edit_menu_branchopts = gtk.MenuItem("Branch Settings")
133
152
        edit_menu_branchopts.connect('activate', lambda x: PreferencesWindow(self.branch.get_config()).show())
134
153
 
135
154
        edit_menu_globopts = gtk.MenuItem("Global Settings")
136
155
        edit_menu_globopts.connect('activate', lambda x: PreferencesWindow().show())
137
156
 
138
 
        edit_menu.add(edit_menu_find)
139
157
        edit_menu.add(edit_menu_branchopts)
140
158
        edit_menu.add(edit_menu_globopts)
141
159
 
143
161
        view_menuitem = gtk.MenuItem("_View")
144
162
        view_menuitem.set_submenu(view_menu)
145
163
 
 
164
        view_menu_refresh = self.refresh_action.create_menu_item()
 
165
        view_menu_refresh.connect('activate', self._refresh_clicked)
 
166
 
 
167
        view_menu.add(view_menu_refresh)
 
168
        view_menu.add(gtk.SeparatorMenuItem())
 
169
 
146
170
        view_menu_toolbar = gtk.CheckMenuItem("Show Toolbar")
147
171
        view_menu_toolbar.set_active(True)
 
172
        if self.config.get_user_option('viz-toolbar-visible') == 'False':
 
173
            view_menu_toolbar.set_active(False)
 
174
            self.toolbar.hide()
148
175
        view_menu_toolbar.connect('toggled', self._toolbar_visibility_changed)
149
176
 
150
177
        view_menu_compact = gtk.CheckMenuItem("Show Compact Graph")
151
178
        view_menu_compact.set_active(self.compact_view)
152
179
        view_menu_compact.connect('activate', self._brokenlines_toggled_cb)
153
 
 
 
180
        
 
181
        view_menu_diffs = gtk.CheckMenuItem("Show Diffs")
 
182
        view_menu_diffs.set_active(False)
 
183
        if self.config.get_user_option('viz-show-diffs') == 'True':
 
184
            view_menu_diffs.set_active(True)
 
185
        view_menu_diffs.connect('toggled', self._diff_visibility_changed)
 
186
        
 
187
        view_menu_wide_diffs = gtk.CheckMenuItem("Wide Diffs")
 
188
        view_menu_wide_diffs.set_active(False)
 
189
        if self.config.get_user_option('viz-wide-diffs') == 'True':
 
190
            view_menu_wide_diffs.set_active(True)
 
191
        view_menu_wide_diffs.connect('toggled', self._diff_placement_changed)
 
192
        
 
193
        view_menu_wrap_diffs = gtk.CheckMenuItem("Wrap _Long Lines in Diffs")
 
194
        view_menu_wrap_diffs.set_active(False)
 
195
        if self.config.get_user_option('viz-wrap-diffs') == 'True':
 
196
            view_menu_wrap_diffs.set_active(True)
 
197
        view_menu_wrap_diffs.connect('toggled', self._diff_wrap_changed)
 
198
                
154
199
        view_menu.add(view_menu_toolbar)
155
200
        view_menu.add(view_menu_compact)
156
201
        view_menu.add(gtk.SeparatorMenuItem())
157
 
 
158
 
        for (label, name) in [("Revision _Number", "revno"), ("_Date", "date")]:
159
 
            col = gtk.CheckMenuItem("Show " + label + " Column")
 
202
        view_menu.add(view_menu_diffs)
 
203
        view_menu.add(view_menu_wide_diffs)
 
204
        view_menu.add(view_menu_wrap_diffs)
 
205
        view_menu.add(gtk.SeparatorMenuItem())
 
206
 
 
207
        self.mnu_show_revno_column = gtk.CheckMenuItem("Show Revision _Number Column")
 
208
        self.mnu_show_date_column = gtk.CheckMenuItem("Show _Date Column")
 
209
 
 
210
        # Revision numbers are pointless if there are multiple branches
 
211
        if len(self.start_revs) > 1:
 
212
            self.mnu_show_revno_column.set_sensitive(False)
 
213
            self.treeview.set_property('revno-column-visible', False)
 
214
 
 
215
        for (col, name) in [(self.mnu_show_revno_column, "revno"), 
 
216
                            (self.mnu_show_date_column, "date")]:
160
217
            col.set_active(self.treeview.get_property(name + "-column-visible"))
161
218
            col.connect('toggled', self._col_visibility_changed, name)
162
219
            view_menu.add(col)
169
226
        go_menu_next = self.next_rev_action.create_menu_item()
170
227
        go_menu_prev = self.prev_rev_action.create_menu_item()
171
228
 
172
 
        self.go_menu_tags = gtk.MenuItem("_Tags")
 
229
        tag_image = gtk.Image()
 
230
        tag_image.set_from_file(icon_path("tag-16.png"))
 
231
        self.go_menu_tags = gtk.ImageMenuItem("_Tags")
 
232
        self.go_menu_tags.set_image(tag_image)
173
233
        self._update_tags()
174
234
 
175
235
        go_menu.add(go_menu_next)
177
237
        go_menu.add(gtk.SeparatorMenuItem())
178
238
        go_menu.add(self.go_menu_tags)
179
239
 
180
 
        revision_menu = gtk.Menu()
 
240
        self.revision_menu = RevisionMenu(self.branch.repository, [], self.branch, parent=self)
181
241
        revision_menuitem = gtk.MenuItem("_Revision")
182
 
        revision_menuitem.set_submenu(revision_menu)
183
 
 
184
 
        revision_menu_diff = gtk.MenuItem("View Changes")
185
 
        revision_menu_diff.connect('activate', 
186
 
                lambda w: self.treeview.show_diff())
187
 
 
188
 
        revision_menu_tag = gtk.MenuItem("Tag Revision")
189
 
        revision_menu_tag.connect('activate', self._tag_revision_cb)
190
 
 
191
 
        revision_menu.add(revision_menu_tag)
192
 
        revision_menu.add(revision_menu_diff)
 
242
        revision_menuitem.set_submenu(self.revision_menu)
193
243
 
194
244
        branch_menu = gtk.Menu()
195
245
        branch_menuitem = gtk.MenuItem("_Branch")
198
248
        branch_menu.add(gtk.MenuItem("Pu_ll Revisions"))
199
249
        branch_menu.add(gtk.MenuItem("Pu_sh Revisions"))
200
250
 
 
251
        try:
 
252
            from bzrlib.plugins import search
 
253
        except ImportError:
 
254
            mutter("Didn't find search plugin")
 
255
        else:
 
256
            branch_menu.add(gtk.SeparatorMenuItem())
 
257
 
 
258
            branch_index_menuitem = gtk.MenuItem("_Index")
 
259
            branch_index_menuitem.connect('activate', self._branch_index_cb)
 
260
            branch_menu.add(branch_index_menuitem)
 
261
 
 
262
            branch_search_menuitem = gtk.MenuItem("_Search")
 
263
            branch_search_menuitem.connect('activate', self._branch_search_cb)
 
264
            branch_menu.add(branch_search_menuitem)
 
265
 
201
266
        help_menu = gtk.Menu()
202
267
        help_menuitem = gtk.MenuItem("_Help")
203
268
        help_menuitem.set_submenu(help_menu)
222
287
        """Construct the top-half of the window."""
223
288
        # FIXME: Make broken_line_length configurable
224
289
 
225
 
        self.treeview = TreeView(self.branch, self.start, self.maxnum, self.compact_view)
 
290
        self.treeview = TreeView(self.branch, self.start_revs, self.maxnum, self.compact_view)
226
291
 
227
292
        self.treeview.connect('revision-selected',
228
293
                self._treeselection_changed_cb)
 
294
        self.treeview.connect('revision-activated',
 
295
                self._tree_revision_activated)
229
296
 
230
297
        self.treeview.connect('tag-added', lambda w, t, r: self._update_tags())
231
298
 
233
300
            option = self.config.get_user_option(col + '-column-visible')
234
301
            if option is not None:
235
302
                self.treeview.set_property(col + '-column-visible', option == 'True')
 
303
            else:
 
304
                self.treeview.set_property(col + '-column-visible', False)
236
305
 
237
306
        self.treeview.show()
238
307
 
239
308
        align = gtk.Alignment(0.0, 0.0, 1.0, 1.0)
240
309
        align.set_padding(5, 0, 0, 0)
241
310
        align.add(self.treeview)
 
311
        # user-configured size
 
312
        size = self._load_size('viz-graph-size')
 
313
        if size:
 
314
            width, height = size
 
315
            align.set_size_request(width, height)
 
316
        else:
 
317
            (width, height) = self.get_size()
 
318
            align.set_size_request(width, int(height / 2.5))
 
319
        align.connect('size-allocate', self._on_size_allocate, 'viz-graph-size')
242
320
        align.show()
243
321
 
244
322
        return align
266
344
 
267
345
    def construct_bottom(self):
268
346
        """Construct the bottom half of the window."""
 
347
        if self.config.get_user_option('viz-wide-diffs') == 'True':
 
348
            self.diff_paned = gtk.VPaned()
 
349
        else:
 
350
            self.diff_paned = gtk.HPaned()
 
351
        (width, height) = self.get_size()
 
352
        self.diff_paned.set_size_request(20, 20) # shrinkable
 
353
 
269
354
        from bzrlib.plugins.gtk.revisionview import RevisionView
270
355
        self.revisionview = RevisionView(branch=self.branch)
271
 
        (width, height) = self.get_size()
272
 
        self.revisionview.set_size_request(width, int(height / 2.5))
 
356
        self.revisionview.set_size_request(width/3, int(height / 2.5))
 
357
        # user-configured size
 
358
        size = self._load_size('viz-revisionview-size')
 
359
        if size:
 
360
            width, height = size
 
361
            self.revisionview.set_size_request(width, height)
 
362
        self.revisionview.connect('size-allocate', self._on_size_allocate, 'viz-revisionview-size')
273
363
        self.revisionview.show()
274
364
        self.revisionview.set_show_callback(self._show_clicked_cb)
275
365
        self.revisionview.connect('notify::revision', self._go_clicked_cb)
276
366
        self.treeview.connect('tag-added', lambda w, t, r: self.revisionview.update_tags())
277
 
        return self.revisionview
 
367
        self.diff_paned.pack1(self.revisionview)
 
368
 
 
369
        from bzrlib.plugins.gtk.diff import DiffWidget
 
370
        self.diff = DiffWidget()
 
371
        self.diff_paned.pack2(self.diff)
 
372
 
 
373
        self.diff_paned.show_all()
 
374
        if self.config.get_user_option('viz-show-diffs') != 'True':
 
375
            self.diff.hide()
 
376
 
 
377
        return self.diff_paned
278
378
 
279
379
    def _tag_selected_cb(self, menuitem, revid):
280
380
        self.treeview.set_revision_id(revid)
285
385
        parents  = self.treeview.get_parents()
286
386
        children = self.treeview.get_children()
287
387
 
288
 
        if revision is not None:
 
388
        self.revision_menu.set_revision_ids([revision.revision_id])
 
389
 
 
390
        if revision and revision != NULL_REVISION:
289
391
            prev_menu = gtk.Menu()
290
392
            if len(parents) > 0:
291
393
                self.prev_rev_action.set_sensitive(True)
292
394
                for parent_id in parents:
293
 
                    parent = self.branch.repository.get_revision(parent_id)
294
 
                    try:
295
 
                        str = ' (' + parent.properties['branch-nick'] + ')'
296
 
                    except KeyError:
297
 
                        str = ""
 
395
                    if parent_id and parent_id != NULL_REVISION:
 
396
                        parent = self.branch.repository.get_revision(parent_id)
 
397
                        try:
 
398
                            str = ' (' + parent.properties['branch-nick'] + ')'
 
399
                        except KeyError:
 
400
                            str = ""
298
401
 
299
 
                    item = gtk.MenuItem(parent.message.split("\n")[0] + str)
300
 
                    item.connect('activate', self._set_revision_cb, parent_id)
301
 
                    prev_menu.add(item)
 
402
                        item = gtk.MenuItem(parent.message.split("\n")[0] + str)
 
403
                        item.connect('activate', self._set_revision_cb, parent_id)
 
404
                        prev_menu.add(item)
302
405
                prev_menu.show_all()
303
406
            else:
304
407
                self.prev_rev_action.set_sensitive(False)
328
431
 
329
432
            self.revisionview.set_revision(revision)
330
433
            self.revisionview.set_children(children)
331
 
 
 
434
            self.update_diff_panel(revision, parents)
 
435
 
 
436
    def _tree_revision_activated(self, widget, path, col):
 
437
        # TODO: more than one parent
 
438
        """Callback for when a treeview row gets activated."""
 
439
        revision = self.treeview.get_revision()
 
440
        parents  = self.treeview.get_parents()
 
441
 
 
442
        if len(parents) == 0:
 
443
            parent_id = None
 
444
        else:
 
445
            parent_id = parents[0]
 
446
 
 
447
        self.show_diff(revision.revision_id, parent_id)
 
448
        self.treeview.grab_focus()
 
449
        
332
450
    def _back_clicked_cb(self, *args):
333
451
        """Callback for when the back button is clicked."""
334
452
        self.treeview.back()
344
462
 
345
463
    def _show_clicked_cb(self, revid, parentid):
346
464
        """Callback for when the show button for a parent is clicked."""
347
 
        self.treeview.show_diff(revid, parentid)
 
465
        self.show_diff(revid, parentid)
348
466
        self.treeview.grab_focus()
349
467
 
350
468
    def _set_revision_cb(self, w, revision_id):
362
480
        self.treeview.set_property('compact', self.compact_view)
363
481
        self.treeview.refresh()
364
482
 
365
 
    def _tag_revision_cb(self, w):
 
483
    def _branch_index_cb(self, w):
 
484
        from bzrlib.plugins.search import index as _mod_index
 
485
        _mod_index.index_url(self.branch.base)
 
486
 
 
487
    def _branch_search_cb(self, w):
 
488
        from bzrlib.plugins.search import index as _mod_index
 
489
        from bzrlib.plugins.gtk.search import SearchDialog
 
490
        from bzrlib.plugins.search import errors as search_errors
 
491
 
366
492
        try:
367
 
            self.treeview.set_sensitive(False)
368
 
            dialog = AddTagDialog(self.branch.repository, self.treeview.get_revision().revision_id, self.branch)
369
 
            response = dialog.run()
370
 
            if response != gtk.RESPONSE_NONE:
371
 
                dialog.hide()
372
 
            
373
 
                if response == gtk.RESPONSE_OK:
374
 
                    self.treeview.add_tag(dialog.tagname, dialog._revid)
375
 
                
376
 
                dialog.destroy()
377
 
 
378
 
        finally:
379
 
            self.treeview.set_sensitive(True)
 
493
            index = _mod_index.open_index_url(self.branch.base)
 
494
        except search_errors.NoSearchIndex:
 
495
            dialog = gtk.MessageDialog(self, type=gtk.MESSAGE_QUESTION, 
 
496
                buttons=gtk.BUTTONS_OK_CANCEL, 
 
497
                message_format="This branch has not been indexed yet. "
 
498
                               "Index now?")
 
499
            if dialog.run() == gtk.RESPONSE_OK:
 
500
                dialog.destroy()
 
501
                index = _mod_index.index_url(self.branch.base)
 
502
            else:
 
503
                dialog.destroy()
 
504
                return
 
505
 
 
506
        dialog = SearchDialog(index)
 
507
        
 
508
        if dialog.run() == gtk.RESPONSE_OK:
 
509
            self.set_revision(dialog.get_revision())
 
510
 
 
511
        dialog.destroy()
380
512
 
381
513
    def _about_dialog_cb(self, w):
382
514
        from bzrlib.plugins.gtk.about import AboutDialog
389
521
 
390
522
    def _toolbar_visibility_changed(self, col):
391
523
        if col.get_active():
392
 
            self.toolbar.show() 
 
524
            self.toolbar.show()
393
525
        else:
394
526
            self.toolbar.hide()
395
 
 
 
527
        self.config.set_user_option('viz-toolbar-visible', col.get_active())
 
528
 
 
529
    def _make_diff_nonzero_size(self):
 
530
        """make sure the diff isn't zero-width or zero-height"""
 
531
        alloc = self.diff.get_allocation()
 
532
        if (alloc.width < 10) or (alloc.height < 10):
 
533
            width, height = self.get_size()
 
534
            self.revisionview.set_size_request(width/3, int(height / 2.5))
 
535
 
 
536
    def _diff_visibility_changed(self, col):
 
537
        """Hide or show the diff panel."""
 
538
        if col.get_active():
 
539
            self.diff.show()
 
540
            self._make_diff_nonzero_size()
 
541
        else:
 
542
            self.diff.hide()
 
543
        self.config.set_user_option('viz-show-diffs', str(col.get_active()))
 
544
        self.update_diff_panel()
 
545
 
 
546
    def _diff_placement_changed(self, col):
 
547
        """Toggle the diff panel's position."""
 
548
        self.config.set_user_option('viz-wide-diffs', str(col.get_active()))
 
549
 
 
550
        old = self.paned.get_child2()
 
551
        self.paned.remove(old)
 
552
        self.paned.pack2(self.construct_bottom(), resize=True, shrink=False)
 
553
        self._make_diff_nonzero_size()
 
554
 
 
555
        self.treeview.emit('revision-selected')
 
556
    
 
557
    def _diff_wrap_changed(self, widget):
 
558
        """Toggle word wrap in the diff widget."""
 
559
        self.config.set_user_option('viz-wrap-diffs', widget.get_active())
 
560
        self.diff._on_wraplines_toggled(widget)
 
561
    
396
562
    def _show_about_cb(self, w):
397
563
        dialog = AboutDialog()
398
564
        dialog.connect('response', lambda d,r: d.destroy())
409
575
            tags.sort()
410
576
            tags.reverse()
411
577
            for tag, revid in tags:
412
 
                tag_item = gtk.MenuItem(tag)
 
578
                tag_image = gtk.Image()
 
579
                tag_image.set_from_file(icon_path('tag-16.png'))
 
580
                tag_item = gtk.ImageMenuItem(tag.replace('_', '__'))
 
581
                tag_item.set_image(tag_image)
413
582
                tag_item.connect('activate', self._tag_selected_cb, revid)
414
583
                menu.add(tag_item)
415
584
            self.go_menu_tags.set_submenu(menu)
420
589
 
421
590
        self.go_menu_tags.show_all()
422
591
 
423
 
 
 
592
    def _load_size(self, name):
 
593
        """Read and parse 'name' from self.config.
 
594
        The value is a string, formatted as WIDTHxHEIGHT
 
595
        Returns None, or (width, height)
 
596
        """
 
597
        size = self.config.get_user_option(name)
 
598
        if size:
 
599
            width, height = [int(num) for num in size.split('x')]
 
600
            # avoid writing config every time we start
 
601
            self._sizes[name] = (width, height)
 
602
            return width, height
 
603
        return None
 
604
 
 
605
    def _on_size_allocate(self, widget, allocation, name):
 
606
        """When window has been resized, save the new size."""
 
607
        width, height = 0, 0
 
608
        if name in self._sizes:
 
609
            width, height = self._sizes[name]
 
610
 
 
611
        size_changed = (width != allocation.width) or \
 
612
                (height != allocation.height)
 
613
 
 
614
        if size_changed:
 
615
            width, height = allocation.width, allocation.height
 
616
            self._sizes[name] = (width, height)
 
617
            value = '%sx%s' % (width, height)
 
618
            self.config.set_user_option(name, value)
 
619
 
 
620
    def show_diff(self, revid=None, parentid=None):
 
621
        """Open a new window to show a diff between the given revisions."""
 
622
        from bzrlib.plugins.gtk.diff import DiffWindow
 
623
        window = DiffWindow(parent=self)
 
624
 
 
625
        if parentid is None:
 
626
            parentid = NULL_REVISION
 
627
 
 
628
        rev_tree    = self.branch.repository.revision_tree(revid)
 
629
        parent_tree = self.branch.repository.revision_tree(parentid)
 
630
 
 
631
        description = revid + " - " + self.branch.nick
 
632
        window.set_diff(description, rev_tree, parent_tree)
 
633
        window.show()
 
634
 
 
635
    def update_diff_panel(self, revision=None, parents=None):
 
636
        """Show the current revision in the diff panel."""
 
637
        if self.config.get_user_option('viz-show-diffs') != 'True':
 
638
            return
 
639
 
 
640
        if not revision: # default to selected row
 
641
            revision = self.treeview.get_revision()
 
642
        if (not revision) or (revision == NULL_REVISION):
 
643
            return
 
644
 
 
645
        if not parents: # default to selected row's parents
 
646
            parents  = self.treeview.get_parents()
 
647
        if len(parents) == 0:
 
648
            parent_id = None
 
649
        else:
 
650
            parent_id = parents[0]
 
651
 
 
652
        rev_tree    = self.branch.repository.revision_tree(revision.revision_id)
 
653
        parent_tree = self.branch.repository.revision_tree(parent_id)
 
654
 
 
655
        self.diff.set_diff(rev_tree, parent_tree)
 
656
        if self.config.get_user_option('viz-wrap-diffs') == 'True':
 
657
            self.diff._on_wraplines_toggled(wrap=True)
 
658
        self.diff.show_all()