/b-gtk/fix-viz

#!/usr/bin/python

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

"""Branch window.

This module contains the code to manage the branch information window,

which contains both the revision graph and details panes.

"""

__copyright__ = "Copyright © 2005 Canonical Ltd."

__author__    = "Scott James Remnant <scott@ubuntu.com>"

import os

import gtk

import gobject

import pango

from bzrlib.osutils import format_date

from graph import distances, graph, same_branch

from graphcell import CellRendererGraph

class BranchWindow(gtk.Window):

    """Branch window.

    This object represents and manages a single window containing information

    for a particular branch.

    """

    def __init__(self):

        gtk.Window.__init__(self, gtk.WINDOW_TOPLEVEL)

        self.set_border_width(0)

        self.set_title("bzrk")

        # Use three-quarters of the screen by default

        screen = self.get_screen()

        monitor = screen.get_monitor_geometry(0)

        width = int(monitor.width * 0.75)

        height = int(monitor.height * 0.75)

        self.set_default_size(width, height)

        # FIXME AndyFitz!

        icon = self.render_icon(gtk.STOCK_INDEX, gtk.ICON_SIZE_BUTTON)

        self.set_icon(icon)

        self.accel_group = gtk.AccelGroup()

        self.add_accel_group(self.accel_group)

        self.construct()

    def construct(self):

        """Construct the window contents."""

        paned = gtk.VPaned()

        paned.pack1(self.construct_top(), resize=True, shrink=False)

        paned.pack2(self.construct_bottom(), resize=True, shrink=True)

        self.add(paned)

        paned.show()

    def construct_top(self):

        """Construct the top-half of the window."""

        vbox = gtk.VBox(spacing=6)

        vbox.set_border_width(12)

        vbox.show()

        scrollwin = gtk.ScrolledWindow()

        scrollwin.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)

        scrollwin.set_shadow_type(gtk.SHADOW_IN)

        vbox.pack_start(scrollwin, expand=True, fill=True)

        scrollwin.show()

        self.treeview = gtk.TreeView()

        self.treeview.set_rules_hint(True)

        self.treeview.set_search_column(4)

        self.treeview.connect("cursor-changed", self._treeview_cursor_cb)

        scrollwin.add(self.treeview)

        self.treeview.show()

        cell = CellRendererGraph()

        column = gtk.TreeViewColumn()

        column.set_resizable(False)

        column.pack_start(cell, expand=False)

        column.add_attribute(cell, "node", 1)

        column.add_attribute(cell, "in-lines", 2)

        column.add_attribute(cell, "out-lines", 3)

        self.treeview.append_column(column)

        cell = gtk.CellRendererText()

        cell.set_property("width-chars", 40)

        cell.set_property("ellipsize", pango.ELLIPSIZE_END)

        column = gtk.TreeViewColumn("Message")

        column.set_resizable(True)

        column.pack_start(cell, expand=True)

        column.add_attribute(cell, "text", 4)

        self.treeview.append_column(column)

        cell = gtk.CellRendererText()

        cell.set_property("width-chars", 40)

        cell.set_property("ellipsize", pango.ELLIPSIZE_END)

        column = gtk.TreeViewColumn("Committer")

        column.set_resizable(True)

        column.pack_start(cell, expand=True)

        column.add_attribute(cell, "text", 5)

        self.treeview.append_column(column)

        cell = gtk.CellRendererText()

        cell.set_property("ellipsize", pango.ELLIPSIZE_END)

        column = gtk.TreeViewColumn("Date")

        column.set_resizable(True)

        column.pack_start(cell, expand=True)

        column.add_attribute(cell, "text", 6)

        self.treeview.append_column(column)

        hbox = gtk.HBox(False, spacing=6)

        vbox.pack_start(hbox, expand=False, fill=False)

        hbox.show()

        self.back_button = gtk.Button(stock=gtk.STOCK_GO_BACK)

        self.back_button.add_accelerator("clicked", self.accel_group, ord('['),

                                         0, 0)

        self.back_button.connect("clicked", self._back_clicked_cb)

        hbox.pack_start(self.back_button, expand=False, fill=True)

        self.back_button.show()

        self.fwd_button = gtk.Button(stock=gtk.STOCK_GO_FORWARD)

        self.fwd_button.add_accelerator("clicked", self.accel_group, ord(']'),

                                        0, 0)

        self.fwd_button.connect("clicked", self._fwd_clicked_cb)

        hbox.pack_start(self.fwd_button, expand=False, fill=True)

        self.fwd_button.show()

        return vbox

    def construct_bottom(self):

        """Construct the bottom half of the window."""

        label = gtk.Label("test")

        label.show()

        return label

    def set_branch(self, branch, start):

        """Set the branch and start position for this window.

        Creates a new TreeModel and populates it with information about

        the new branch before updating the window title and model of the

        treeview itself.

        """

        # [ revision, node, last_lines, lines, message, committer, timestamp ]

        self.model = gtk.ListStore(gobject.TYPE_PYOBJECT,

                                   gobject.TYPE_PYOBJECT,

                                   gobject.TYPE_PYOBJECT,

                                   gobject.TYPE_PYOBJECT,

                                   str, str, str)

        self.index = {}

        index = 0

        last_lines = []

        (revids, self.revisions, colours, self.children) \

                 = distances(branch, start)

        for revision, node, lines in graph(revids, self.revisions, colours):

            message = revision.message.split("\n")[0]

            if revision.committer is not None:

                timestamp = format_date(revision.timestamp, revision.timezone)

            else:

                timestamp = None

            self.model.append([ revision, node, last_lines, lines,

                                message, revision.committer, timestamp ])

            self.index[revision] = index

            index += 1

            last_lines = lines

        self.set_title(os.path.basename(branch.base) + " - bzrk")

        self.treeview.set_model(self.model)

    def _treeview_cursor_cb(self, *args):

        """Callback for when the treeview cursor changes."""

        (path, col) = self.treeview.get_cursor()

        revision = self.model[path][0]

        self.back_button.set_sensitive(len(revision.parent_ids) > 0)

        self.fwd_button.set_sensitive(len(self.children[revision]) > 0)

    def _back_clicked_cb(self, *args):

        """Callback for when the back button is clicked."""

        (path, col) = self.treeview.get_cursor()

        revision = self.model[path][0]

        if not len(revision.parent_ids):

            return

        for parent_id in revision.parent_ids:

            parent = self.revisions[parent_id]

            if same_branch(revision, parent):

                self.treeview.set_cursor(self.index[parent])

                break

        else:

            next = self.revisions[revision.parent_ids[0]]

            self.treeview.set_cursor(self.index[next])

    def _fwd_clicked_cb(self, *args):

        """Callback for when the forward button is clicked."""

        (path, col) = self.treeview.get_cursor()

        revision = self.model[path][0]

        if not len(self.children[revision]):

            return

        for child in self.children[revision]:

            if same_branch(child, revision):

                self.treeview.set_cursor(self.index[child])

                break

        else:

            prev = list(self.children[revision])[0]

            self.treeview.set_cursor(self.index[prev])