/b-gtk/fix-viz

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Viewing changes to viz/treeview.py

  • Committer: John Arbash Meinel
  • Date: 2007-10-30 21:15:13 UTC
  • mfrom: (326 trunk)
  • mto: (330.3.3 trunk)
  • mto: This revision was merged to the branch mainline in revision 368.
  • Revision ID: john@arbash-meinel.com-20071030211513-l8ukdfa81g1y74mi
Merge the latest trunk 326

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viz/treeview.py
 
1
# -*- coding: UTF-8 -*-
 
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"""Revision history view.
 
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"""
 
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__copyright__ = "Copyright � 2005 Canonical Ltd."
 
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__author__    = "Daniel Schierbeck <daniel.schierbeck@gmail.com>"
 
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import sys
 
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import string
 
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import gtk
 
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import gobject
 
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import pango
 
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import re
 
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import treemodel
 
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from linegraph import linegraph, same_branch
 
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from graphcell import CellRendererGraph
 
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from treemodel import TreeModel
 
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class TreeView(gtk.ScrolledWindow):
 
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    __gsignals__ = {
 
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            'revisions-loaded': (gobject.SIGNAL_RUN_FIRST, 
 
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                                 gobject.TYPE_NONE,
 
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                                 ()),
 
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            'revision-selected': (gobject.SIGNAL_RUN_FIRST,
 
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                                  gobject.TYPE_NONE,
 
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                                  ())
 
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    }
 
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    def __init__(self, branch, start, maxnum):
 
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        """Create a new TreeView.
 
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        :param branch: Branch object for branch to show.
 
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        :param start: Revision id of top revision.
 
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        :param maxnum: Maximum number of revisions to display, 
 
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                       None for no limit.
 
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        """
 
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        gtk.ScrolledWindow.__init__(self)
 
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        self.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
 
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        self.set_shadow_type(gtk.SHADOW_IN)
 
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        self.construct_treeview()
 
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        self.branch = branch
 
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        self.branch.lock_read()
 
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        gobject.idle_add(self.populate, start, maxnum)
 
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        self.revision = None
 
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        self.children = None
 
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        self.parents  = None
 
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        self.connect('destroy', lambda w: self.branch.unlock())
 
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    def get_revision(self):
 
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        """Return revision id of currently selected revision, or None."""
 
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        return self.revision
 
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    def set_revision(self, revid):
 
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        """Change the currently selected revision.
 
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        :param revid: Revision id of revision to display.
 
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        """
 
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        self.treeview.set_cursor(self.index[revid])
 
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        self.treeview.grab_focus()
 
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    def get_children(self):
 
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        """Return the children of the currently selected revision.
 
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        :return: list of revision ids.
 
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        """
 
75
        return self.children
 
76
 
 
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    def get_parents(self):
 
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        """Return the parents of the currently selected revision.
 
79
 
 
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        :return: list of revision ids.
 
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        """
 
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        return self.parents
 
83
        
 
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    def back(self):
 
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        """Signal handler for the Back button."""
 
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        (path, col) = self.treeview.get_cursor()
 
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        revision = self.model[path][treemodel.REVISION]
 
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        parents = self.model[path][treemodel.PARENTS]
 
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        if not len(parents):
 
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            return
 
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        for parent_id in parents:
 
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            parent_index = self.index[parent_id]
 
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            parent = self.model[parent_index][treemodel.REVISION]
 
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            if same_branch(revision, parent):
 
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                self.treeview.set_cursor(parent_index)
 
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                break
 
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        else:
 
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            self.treeview.set_cursor(self.index[parents[0]])
 
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        self.treeview.grab_focus()
 
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102
    def forward(self):
 
103
        """Signal handler for the Forward button."""
 
104
        (path, col) = self.treeview.get_cursor()
 
105
        revision = self.model[path][treemodel.REVISION]
 
106
        children = self.model[path][treemodel.CHILDREN]
 
107
        if not len(children):
 
108
            return
 
109
 
 
110
        for child_id in children:
 
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            child_index = self.index[child_id]
 
112
            child = self.model[child_index][treemodel.REVISION]
 
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            if same_branch(child, revision):
 
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                self.treeview.set_cursor(child_index)
 
115
                break
 
116
        else:
 
117
            self.treeview.set_cursor(self.index[children[0]])
 
118
        self.treeview.grab_focus()
 
119
 
 
120
    def populate(self, start, maxnum):
 
121
        """Fill the treeview with contents.
 
122
 
 
123
        :param start: Revision id of revision to start with.
 
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        :param maxnum: Maximum number of revisions to display, or None 
 
125
                       for no limit.
 
126
        """
 
127
        (linegraphdata, index, columns_len) = linegraph(self.branch,
 
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                                                        start,
 
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                                                        maxnum)
 
130
 
 
131
        self.model = TreeModel(self.branch, linegraphdata)
 
132
        self.graph_cell.columns_len = columns_len
 
133
        width = self.graph_cell.get_size(self.treeview)[2]
 
134
        self.graph_column.set_fixed_width(width)
 
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        self.graph_column.set_max_width(width)
 
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        self.index = index
 
137
        self.treeview.set_model(self.model)
 
138
        self.treeview.set_cursor(0)
 
139
        self.emit('revisions-loaded')
 
140
 
 
141
        return False
 
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143
    def show_diff(self, branch, revid, parentid):
 
144
        """Open a new window to show a diff between the given revisions."""
 
145
        from bzrlib.plugins.gtk.diff import DiffWindow
 
146
        window = DiffWindow(parent=self)
 
147
        (parent_tree, rev_tree) = branch.repository.revision_trees([parentid, 
 
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                                                                   revid])
 
149
        description = revid + " - " + branch.nick
 
150
        window.set_diff(description, rev_tree, parent_tree)
 
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        window.show()
 
152
 
 
153
    def construct_treeview(self):
 
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        self.treeview = gtk.TreeView()
 
155
 
 
156
        self.treeview.set_rules_hint(True)
 
157
        self.treeview.set_search_column(4)
 
158
 
 
159
        self.treeview.get_selection().connect("changed",
 
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                self._on_selection_changed)
 
161
 
 
162
        self.treeview.connect("row-activated", 
 
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                self._on_revision_activated)
 
164
 
 
165
        self.treeview.connect("button-release-event", 
 
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                self._on_revision_selected)
 
167
 
 
168
        self.treeview.set_property('fixed-height-mode', True)
 
169
 
 
170
        self.add(self.treeview)
 
171
        self.treeview.show()
 
172
 
 
173
        cell = gtk.CellRendererText()
 
174
        cell.set_property("width-chars", 15)
 
175
        cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 
176
        column = gtk.TreeViewColumn("Revision No")
 
177
        column.set_resizable(True)
 
178
        column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
 
179
        column.set_fixed_width(cell.get_size(self.treeview)[2])
 
180
        column.pack_start(cell, expand=True)
 
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        column.add_attribute(cell, "text", treemodel.REVNO)
 
182
        self.treeview.append_column(column)
 
183
 
 
184
        self.graph_cell = CellRendererGraph()
 
185
        self.graph_column = gtk.TreeViewColumn()
 
186
        self.graph_column.set_resizable(True)
 
187
        self.graph_column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
 
188
        self.graph_column.pack_start(self.graph_cell, expand=False)
 
189
        self.graph_column.add_attribute(self.graph_cell, "node", treemodel.NODE)
 
190
        self.graph_column.add_attribute(self.graph_cell, "in-lines", treemodel.LAST_LINES)
 
191
        self.graph_column.add_attribute(self.graph_cell, "out-lines", treemodel.LINES)
 
192
        self.treeview.append_column(self.graph_column)
 
193
 
 
194
        cell = gtk.CellRendererText()
 
195
        cell.set_property("width-chars", 65)
 
196
        cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 
197
        column = gtk.TreeViewColumn("Message")
 
198
        column.set_resizable(True)
 
199
        column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
 
200
        column.set_fixed_width(cell.get_size(self.treeview)[2])
 
201
        column.pack_start(cell, expand=True)
 
202
        column.add_attribute(cell, "text", treemodel.MESSAGE)
 
203
        self.treeview.append_column(column)
 
204
 
 
205
        cell = gtk.CellRendererText()
 
206
        cell.set_property("width-chars", 15)
 
207
        cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 
208
        column = gtk.TreeViewColumn("Committer")
 
209
        column.set_resizable(True)
 
210
        column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
 
211
        column.set_fixed_width(cell.get_size(self.treeview)[2])
 
212
        column.pack_start(cell, expand=True)
 
213
        column.add_attribute(cell, "text", treemodel.COMMITER)
 
214
        self.treeview.append_column(column)
 
215
 
 
216
    def _on_selection_changed(self, selection, *args):
 
217
        """callback for when the treeview changes."""
 
218
        (model, selected_rows) = selection.get_selected_rows()
 
219
        if len(selected_rows) > 0:
 
220
            iter = self.model.get_iter(selected_rows[0])
 
221
            self.revision = self.model.get_value(iter, treemodel.REVISION)
 
222
            self.parents = self.model.get_value(iter, treemodel.PARENTS)
 
223
            self.children = self.model.get_value(iter, treemodel.CHILDREN)
 
224
 
 
225
            self.emit('revision-selected')
 
226
 
 
227
    def _on_revision_selected(self, widget, event):
 
228
        from bzrlib.plugins.gtk.revisionmenu import RevisionPopupMenu
 
229
        if event.button == 3:
 
230
            menu = RevisionPopupMenu(self.branch.repository, 
 
231
                [self.get_revision().revision_id],
 
232
                self.branch)
 
233
            menu.popup(None, None, None, event.button, event.get_time())
 
234
 
 
235
    def _on_revision_activated(self, widget, path, col):
 
236
        # TODO: more than one parent
 
237
        """Callback for when a treeview row gets activated."""
 
238
        revision_id = self.model[path][treemodel.REVID]
 
239
        parents = self.model[path][treemodel.PARENTS]
 
240
        if len(parents) == 0:
 
241
            # Ignore revisions without parent
 
242
            return
 
243
        parent_id = parents[0]
 
244
        self.show_diff(self.branch, revision_id, parent_id)
 
245
        self.treeview.grab_focus()