/b-gtk/fix-viz

# -*- coding: UTF-8 -*-

"""Tree model.

"""

__copyright__ = "Copyright © 2005 Canonical Ltd."

__author__    = "Gary van der Merwe <garyvdm@gmail.com>"

import gtk

import gobject

import pango

import re

from xml.sax.saxutils import escape

from time import (strftime, localtime)

REVID = 0

NODE = 1

LINES = 2

LAST_LINES = 3

REVNO = 4

MESSAGE = 5

COMMITER = 6

TIMESTAMP = 7

REVISION = 8

PARENTS = 9

CHILDREN = 10

TAGS = 11

class TreeModel(gtk.GenericTreeModel):

    def __init__ (self, branch, line_graph_data):

        gtk.GenericTreeModel.__init__(self)

        self.revisions = {}

        self.branch = branch

        self.repository = branch.repository

        self.line_graph_data = line_graph_data

    def on_get_flags(self):

        return gtk.TREE_MODEL_LIST_ONLY

    def on_get_n_columns(self):

        return 12

    def on_get_column_type(self, index):

        if index == REVID: return gobject.TYPE_STRING

        if index == NODE: return gobject.TYPE_PYOBJECT

        if index == LINES: return gobject.TYPE_PYOBJECT

        if index == LAST_LINES: return gobject.TYPE_PYOBJECT

        if index == REVNO: return gobject.TYPE_STRING

        if index == MESSAGE: return gobject.TYPE_STRING

        if index == COMMITER: return gobject.TYPE_STRING

        if index == TIMESTAMP: return gobject.TYPE_STRING

        if index == REVISION: return gobject.TYPE_PYOBJECT

        if index == PARENTS: return gobject.TYPE_PYOBJECT

        if index == CHILDREN: return gobject.TYPE_PYOBJECT

        if index == TAGS: return gobject.TYPE_PYOBJECT

    def on_get_iter(self, path):

        return path[0]

    def on_get_path(self, rowref):

        return rowref

    def on_get_value(self, rowref, column):

        if len(self.line_graph_data) > 0:

            (revid, node, lines, parents,

             children, revno_sequence) = self.line_graph_data[rowref]

        else:

            (revid, node, lines, parents,

             children, revno_sequence) = (None, (0, 0), (), (),

                                          (), ())

        if column == REVID: return revid

        if column == NODE: return node

        if column == LINES: return lines

        if column == PARENTS: return parents

        if column == CHILDREN: return children

        if column == LAST_LINES:

            if rowref>0:

                return self.line_graph_data[rowref-1][2]

            return []

        if column == REVNO: return ".".join(["%d" % (revno)

                                      for revno in revno_sequence])

        if column == TAGS:

            if not self.branch.supports_tags():

                return []

            try:

                return self.branch.tags.get_reverse_tag_dict()[revid]

            except KeyError:

                return []

        if revid is None:

            return None

        if revid not in self.revisions:

            revision = self.repository.get_revisions([revid])[0]

            self.revisions[revid] = revision

        else:

            revision = self.revisions[revid]

        if column == REVISION: return revision

        if column == MESSAGE: return escape(revision.get_summary())

        if column == COMMITER: return re.sub('<.*@.*>', '', 

                                             revision.committer).strip(' ')

        if column == TIMESTAMP: 

            return strftime("%Y-%m-%d %H:%M", localtime(revision.timestamp))

    def on_iter_next(self, rowref):

        if rowref < len(self.line_graph_data) - 1:

            return rowref+1

        return None

    def on_iter_children(self, parent):

        if parent is None: return 0

        return None

    def on_iter_has_child(self, rowref):

        return False

    def on_iter_n_children(self, rowref):

        if rowref is None: return len(self.line_graph_data)

        return 0

    def on_iter_nth_child(self, parent, n):

        if parent is None: return n

        return None

    def on_iter_parent(self, child):

        return None