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# -*- coding: UTF-8 -*-
 
 
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This module contains the code to manage the branch information window,
 
 
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which contains both the revision graph and details panes.
 
 
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__copyright__ = "Copyright © 2005 Canonical Ltd."
 
 
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__author__    = "Scott James Remnant <scott@ubuntu.com>"
 
 
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from bzrlib.plugins.gtk.window import Window
 
 
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from bzrlib.osutils import format_date
 
 
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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 BranchWindow(Window):
 
 
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    This object represents and manages a single window containing information
 
 
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    for a particular branch.
 
 
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    def __init__(self, parent=None):
 
 
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        Window.__init__(self, parent=parent)
 
 
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        self.set_border_width(0)
 
 
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        self.set_title("Revision history")
 
 
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        # Use three-quarters of the screen by default
 
 
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        screen = self.get_screen()
 
 
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        monitor = screen.get_monitor_geometry(0)
 
 
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        width = int(monitor.width * 0.75)
 
 
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        height = int(monitor.height * 0.75)
 
 
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        self.set_default_size(width, height)
 
 
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        icon = self.render_icon(gtk.STOCK_INDEX, gtk.ICON_SIZE_BUTTON)
 
 
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        self.accel_group = gtk.AccelGroup()
 
 
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        self.add_accel_group(self.accel_group)
 
 
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        """Construct the window contents."""
 
 
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        vbox = gtk.VBox(spacing=0)
 
 
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        vbox.pack_start(self.construct_navigation(), expand=False, fill=True)
 
 
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        vbox.pack_start(self.construct_loading_msg(), expand=False, fill=True)
 
 
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        paned.pack1(self.construct_top(), resize=True, shrink=False)
 
 
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        paned.pack2(self.construct_bottom(), resize=False, shrink=True)
 
 
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        vbox.pack_start(paned, expand=True, fill=True)
 
 
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        vbox.set_focus_child(paned)
 
 
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    def construct_loading_msg(self):
 
 
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        image_loading = gtk.image_new_from_stock(gtk.STOCK_REFRESH,
 
 
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        label_loading = gtk.Label(_("Please wait, loading ancestral graph..."))
 
 
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        label_loading.set_alignment(0.0, 0.5)        
 
 
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        self.loading_msg_box = gtk.HBox()
 
 
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        self.loading_msg_box.set_spacing(5)
 
 
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        self.loading_msg_box.set_border_width(5)        
 
 
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        self.loading_msg_box.pack_start(image_loading, False, False)
 
 
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        self.loading_msg_box.pack_start(label_loading, True, True)
 
 
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        self.loading_msg_box.show()
 
 
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        return self.loading_msg_box
 
 
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    def construct_top(self):
 
 
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        """Construct the top-half of the window."""
 
 
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        scrollwin = gtk.ScrolledWindow()
 
 
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        scrollwin.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
 
 
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        scrollwin.set_shadow_type(gtk.SHADOW_IN)
 
 
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        self.treeview = gtk.TreeView()
 
 
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        self.treeview.set_rules_hint(True)
 
 
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        self.treeview.set_search_column(4)
 
 
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        self.treeview.get_selection().connect("changed", self._treeselection_changed_cb)
 
 
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        self.treeview.connect("row-activated", self._treeview_row_activated_cb)
 
 
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        self.treeview.connect("button-release-event", 
 
 
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                self._treeview_row_mouseclick)
 
 
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        self.treeview.set_property('fixed-height-mode', True)
 
 
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        scrollwin.add(self.treeview)
 
 
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        cell = gtk.CellRendererText()
 
 
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        cell.set_property("width-chars", 15)
 
 
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        cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 
 
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        column = gtk.TreeViewColumn("Revision No")
 
 
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        column.set_resizable(True)
 
 
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        column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
 
 
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        column.set_fixed_width(cell.get_size(self.treeview)[2])
 
 
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        column.pack_start(cell, expand=True)
 
 
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        column.add_attribute(cell, "text", treemodel.REVNO)
 
 
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        self.treeview.append_column(column)
 
 
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        self.graph_cell = CellRendererGraph()
 
 
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        self.graph_column = gtk.TreeViewColumn()
 
 
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        self.graph_column.set_resizable(True)
 
 
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        self.graph_column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
 
 
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        self.graph_column.pack_start(self.graph_cell, expand=False)
 
 
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        self.graph_column.add_attribute(self.graph_cell, "node", treemodel.NODE)
 
 
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        self.graph_column.add_attribute(self.graph_cell, "in-lines", treemodel.LAST_LINES)
 
 
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        self.graph_column.add_attribute(self.graph_cell, "out-lines", treemodel.LINES)
 
 
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        self.treeview.append_column(self.graph_column)
 
 
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        cell = gtk.CellRendererText()
 
 
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        cell.set_property("width-chars", 65)
 
 
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        cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 
 
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        column = gtk.TreeViewColumn("Message")
 
 
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        column.set_resizable(True)
 
 
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        column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
 
 
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        column.set_fixed_width(cell.get_size(self.treeview)[2])
 
 
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        column.pack_start(cell, expand=True)
 
 
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        column.add_attribute(cell, "text", treemodel.MESSAGE)
 
 
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        self.treeview.append_column(column)
 
 
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        cell = gtk.CellRendererText()
 
 
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        cell.set_property("width-chars", 15)
 
 
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        cell.set_property("ellipsize", pango.ELLIPSIZE_END)
 
 
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        column = gtk.TreeViewColumn("Committer")
 
 
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        column.set_resizable(True)
 
 
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        column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
 
 
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        column.set_fixed_width(cell.get_size(self.treeview)[2])
 
 
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        column.pack_start(cell, expand=True)
 
 
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        column.add_attribute(cell, "text", treemodel.COMMITER)
 
 
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        self.treeview.append_column(column)
 
 
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    def construct_navigation(self):
 
 
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        """Construct the navigation buttons."""
 
 
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        frame.set_shadow_type(gtk.SHADOW_OUT)
 
 
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        hbox = gtk.HBox(spacing=12)
 
 
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        self.back_button = gtk.Button(stock=gtk.STOCK_GO_BACK)
 
 
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        self.back_button.set_relief(gtk.RELIEF_NONE)
 
 
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        self.back_button.add_accelerator("clicked", self.accel_group, ord('['),
 
 
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        self.back_button.connect("clicked", self._back_clicked_cb)
 
 
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        hbox.pack_start(self.back_button, expand=False, fill=True)
 
 
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        self.back_button.show()
 
 
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        self.fwd_button = gtk.Button(stock=gtk.STOCK_GO_FORWARD)
 
 
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        self.fwd_button.set_relief(gtk.RELIEF_NONE)
 
 
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        self.fwd_button.add_accelerator("clicked", self.accel_group, ord(']'),
 
 
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        self.fwd_button.connect("clicked", self._fwd_clicked_cb)
 
 
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        hbox.pack_start(self.fwd_button, expand=False, fill=True)
 
 
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        self.fwd_button.show()
 
 
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    def construct_bottom(self):
 
 
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        """Construct the bottom half of the window."""
 
 
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        from bzrlib.plugins.gtk.logview import LogView
 
 
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        self.logview = LogView(None, True, [], True)
 
 
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        (width, height) = self.get_size()
 
 
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        self.logview.set_size_request(width, int(height / 2.5))
 
 
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        self.logview.set_show_callback(self._show_clicked_cb)
 
 
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        self.logview.set_go_callback(self._go_clicked_cb)
 
 
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    def set_branch(self, branch, start, maxnum):
 
 
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        """Set the branch and start position for this window.
 
 
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        Creates a new TreeModel and populates it with information about
 
 
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        the new branch before updating the window title and model of the
 
 
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        self.set_title(branch.nick + " - revision history")
 
 
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        gobject.idle_add(self.populate_model, start, maxnum)
 
 
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    def populate_model(self, start, maxnum):
 
 
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        (linegraphdata, index, columns_len) = linegraph(self.branch,
 
 
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        self.model = TreeModel(self.branch, linegraphdata)
 
 
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        self.graph_cell.columns_len = columns_len
 
 
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        width = self.graph_cell.get_size(self.treeview)[2]
 
 
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        self.graph_column.set_fixed_width(width)
 
 
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        self.graph_column.set_max_width(width)
 
 
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        self.treeview.set_model(self.model)
 
 
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        self.treeview.get_selection().select_path(0)
 
 
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        self.loading_msg_box.hide()
 
 
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    def _treeselection_changed_cb(self, selection, *args):
 
 
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        """Callback for when the treeview changes."""
 
 
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        (model, selected_rows) = selection.get_selected_rows()
 
 
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        if len(selected_rows) > 0:
 
 
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            iter = self.model.get_iter(selected_rows[0])
 
 
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            revision = self.model.get_value(iter, treemodel.REVISION)
 
 
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            parents = self.model.get_value(iter, treemodel.PARENTS)
 
 
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            children = self.model.get_value(iter, treemodel.CHILDREN)
 
 
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            self.back_button.set_sensitive(len(parents) > 0)
 
 
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            self.fwd_button.set_sensitive(len(children) > 0)
 
 
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            if self.branch.supports_tags():
 
 
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                tagdict = self.branch.tags.get_reverse_tag_dict()
 
 
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                if tagdict.has_key(revision.revision_id):
 
 
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                    tags = tagdict[revision.revision_id]
 
 
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            self.logview.set_revision(revision, tags, children)
 
 
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    def _back_clicked_cb(self, *args):
 
 
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        """Callback for when the back button is clicked."""
 
 
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        (path, col) = self.treeview.get_cursor()
 
 
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        revision = self.model[path][0]
 
 
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        parents = self.model[path][4]
 
 
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        for parent_id in parents:
 
 
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            parent = self.revisions[self.index[parent_id]]
 
 
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            if same_branch(revision, parent):
 
 
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                self.treeview.set_cursor(self.index[parent_id])
 
 
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            self.treeview.set_cursor(self.index[parents[0]])
 
 
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        self.treeview.grab_focus()
 
 
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    def _fwd_clicked_cb(self, *args):
 
 
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        """Callback for when the forward button is clicked."""
 
 
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        (path, col) = self.treeview.get_cursor()
 
 
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        revision = self.model[path][0]
 
 
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        children = self.model[path][5]
 
 
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        if not len(children):
 
 
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        for child_id in children:
 
 
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            child = self.revisions[self.index[child_id]]
 
 
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            if same_branch(child, revision):
 
 
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                self.treeview.set_cursor(self.index[child_id])
 
 
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            self.treeview.set_cursor(self.index[children[0]])
 
 
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        self.treeview.grab_focus()
 
 
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    def _go_clicked_cb(self, revid):
 
 
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        """Callback for when the go button for a parent is clicked."""
 
 
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        self.treeview.set_cursor(self.index[revid])
 
 
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        self.treeview.grab_focus()
 
 
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    def show_diff(self, branch, revid, parentid):
 
 
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        """Open a new window to show a diff between the given revisions."""
 
 
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        from bzrlib.plugins.gtk.diff import DiffWindow
 
 
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        window = DiffWindow(parent=self)
 
 
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        (parent_tree, rev_tree) = branch.repository.revision_trees([parentid, 
 
 
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        description = revid + " - " + branch.nick
 
 
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        window.set_diff(description, rev_tree, parent_tree)
 
 
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    def _show_clicked_cb(self, revid, parentid):
 
 
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        """Callback for when the show button for a parent is clicked."""
 
 
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        self.show_diff(self.branch, revid, parentid)
 
 
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        self.treeview.grab_focus()
 
 
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    def _treeview_row_mouseclick(self, widget, event):
 
 
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        from bzrlib.plugins.gtk.revisionmenu import RevisionPopupMenu
 
 
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        if event.button == 3:
 
 
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            menu = RevisionPopupMenu(self.branch.repository, 
 
 
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                [x.revision_id for x in self.selected_revisions()],
 
 
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            menu.popup(None, None, None, event.button, event.get_time())
 
 
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    def selected_revision(self, path):
 
 
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        return self.model[path][treemodel.REVISION]
 
 
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    def selected_revisions(self):
 
 
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        return [self.selected_revision(path) for path in \
 
 
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                self.treeview.get_selection().get_selected_rows()[1]]
 
 
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    def _treeview_row_activated_cb(self, widget, path, col):
 
 
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        # TODO: more than one parent
 
 
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        """Callback for when a treeview row gets activated."""
 
 
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        revision_id = self.model[path][treemodel.REVID]
 
 
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        parents = self.model[path][treemodel.PARENTS]
 
 
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        if len(parents) == 0:
 
 
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            # Ignore revisions without parent
 
 
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        parent_id = parents[0]
 
 
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        self.show_diff(self.branch, revision_id, parent_id)
 
 
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        self.treeview.grab_focus()