/b-gtk/fix-viz

# Copyright (C) 2008 Jelmer Vernooij <jelmer@samba.org>

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

try:

    import pygtk

    pygtk.require("2.0")

except:

    pass

import gtk

import gobject

from bzrlib.plugins.gtk import _i18n

from bzrlib.plugins.gtk.diff import DiffWidget

from bzrlib.plugins.gtk.dialog import question_dialog

from bzrlib.plugins.loom import (

    branch as loom_branch,

    tree as loom_tree,

    )

class LoomDialog(gtk.Dialog):

    """Simple Loom browse dialog."""

    def __init__(self, branch, tree=None, parent=None):

        gtk.Dialog.__init__(self, title="Threads",

                                  parent=parent,

                                  flags=0,

                                  buttons=(gtk.STOCK_CLOSE,gtk.RESPONSE_OK))

        self.branch = branch

        if tree is not None:

            self.tree = loom_tree.LoomTreeDecorator(tree)

        else:

            self.tree = None

        self._construct()

    def run(self):

        try:

            loom_branch.require_loom_branch(self.branch)

        except loom_branch.NotALoom:

            response = question_dialog(

                _i18n("Upgrade to Loom branch?"),

                _i18n("Branch is not a loom branch. Upgrade to Loom format?"),

                parent=self)

                # Doesn't set a parent for the dialog..

            if response == gtk.RESPONSE_NO:

                return

            assert self.branch.nick is not None

            loom_branch.loomify(self.branch)

        self._load_threads()

        return super(LoomDialog, self).run()

    def _construct(self):

        hbox = gtk.HBox()

        self._threads_scroller = gtk.ScrolledWindow()

        self._threads_scroller.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)

        self._threads_view = gtk.TreeView()

        self._threads_scroller.add(self._threads_view)

        self._threads_scroller.set_shadow_type(gtk.SHADOW_IN)

        hbox.pack_start(self._threads_scroller)

        self._threads_store = gtk.ListStore(

                gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_PYOBJECT, gobject.TYPE_STRING)

        self._threads_view.set_model(self._threads_store)

        self._threads_view.append_column(gtk.TreeViewColumn("Name", gtk.CellRendererText(), text=0))

        self._threads_view.connect('cursor-changed', self._on_view_thread)

        if self.tree is not None:

            self._threads_view.connect('row-activated', self._on_switch_thread)

        self._diff = DiffWidget()

        self._diff.show()

        hbox.pack_end(self._diff)

        hbox.show_all()

        self.vbox.pack_start(hbox)

        # FIXME: Buttons: combine-thread, revert-loom, record

        self.set_default_size(500, 350)

    def _on_view_thread(self, treeview):

        treeselection = treeview.get_selection()

        (model, selection) = treeselection.get_selected()

        if selection is None:

            return

        revid, parent_revid = model.get(selection, 1, 3)

        if parent_revid is None:

            return

        self.branch.lock_read()

        try:

            (rev_tree, parent_tree) = tuple(self.branch.repository.revision_trees([revid, parent_revid]))

            self._diff.set_diff(rev_tree, parent_tree)

        finally:

            self.branch.unlock()

    def _on_switch_thread(self, treeview, path, view_column):

        new_thread = self._threads_store.get_value(self._threads_store.get_iter(path), 0)

        self.tree.down_thread(new_thread)

    def _load_threads(self):

        self._threads_store.clear()

        self.branch.lock_read()

        try:

            threads = self.branch.get_loom_state().get_threads()

            last_revid = None

            for name, revid, parent_ids in reversed(threads):

                self._threads_store.append([name, revid, parent_ids, last_revid])

                last_revid = revid

        finally:

            self.branch.unlock()