/b-gtk/fix-viz

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  • Committer: Scott James Remnant
  • Date: 2005-10-17 01:07:49 UTC
  • Revision ID: scott@netsplit.com-20051017010749-15fa95fc2cf09289
Commit the first version of bzrk.

Show diffs side-by-side

added added

removed removed

Lines of Context:
diffwin.py
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#!/usr/bin/python
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# -*- coding: UTF-8 -*-
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"""Difference window.
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This module contains the code to manage the diff window which shows
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the changes made between two revisions on a branch.
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"""
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__copyright__ = "Copyright © 2005 Canonical Ltd."
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__author__    = "Scott James Remnant <scott@ubuntu.com>"
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import os
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from cStringIO import StringIO
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import gtk
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import gobject
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import pango
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try:
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    import gtksourceview
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    have_gtksourceview = True
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except ImportError:
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    have_gtksourceview = False
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from bzrlib.delta import compare_trees
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from bzrlib.diff import show_diff_trees
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class DiffWindow(gtk.Window):
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    """Diff window.
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    This object represents and manages a single window containing the
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    differences between two revisions on a branch.
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    """
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    def __init__(self, app=None):
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        gtk.Window.__init__(self, gtk.WINDOW_TOPLEVEL)
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        self.set_border_width(0)
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        self.set_title("bzrk diff")
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        self.app = app
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        # Use two thirds 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 * 0.66)
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        height = int(monitor.height * 0.66)
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        self.set_default_size(width, height)
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        self.construct()
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    def construct(self):
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        """Construct the window contents."""
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        hbox = gtk.HBox(spacing=6)
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        hbox.set_border_width(12)
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        self.add(hbox)
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        hbox.show()
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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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        hbox.pack_start(scrollwin, expand=False, fill=True)
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        scrollwin.show()
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        self.model = gtk.TreeStore(str, str)
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        self.treeview = gtk.TreeView(self.model)
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        self.treeview.set_headers_visible(False)
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        self.treeview.set_search_column(1)
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        self.treeview.connect("cursor-changed", self._treeview_cursor_cb)
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        scrollwin.add(self.treeview)
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        self.treeview.show()
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        cell = gtk.CellRendererText()
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        cell.set_property("width-chars", 20)
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        column = gtk.TreeViewColumn()
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        column.pack_start(cell, expand=True)
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        column.add_attribute(cell, "text", 0)
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        self.treeview.append_column(column)
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        scrollwin = gtk.ScrolledWindow()
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        scrollwin.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
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        scrollwin.set_shadow_type(gtk.SHADOW_IN)
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        hbox.pack_start(scrollwin, expand=True, fill=True)
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        scrollwin.show()
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        if have_gtksourceview:
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            self.buffer = gtksourceview.SourceBuffer()
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            slm = gtksourceview.SourceLanguagesManager()
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            gsl = slm.get_language_from_mime_type("text/x-patch")
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            self.buffer.set_language(gsl)
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            self.buffer.set_highlight(True)
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            sourceview = gtksourceview.SourceView(self.buffer)
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        else:
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            self.buffer = gtk.TextBuffer()
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            sourceview = gtk.TextView(self.buffer)
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        sourceview.set_editable(False)
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        sourceview.set_wrap_mode(gtk.WRAP_CHAR)
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        sourceview.modify_font(pango.FontDescription("Monospace"))
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        scrollwin.add(sourceview)
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        sourceview.show()
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    def set_diff(self, branch, revid, parentid):
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        """Set the differences showed by this window.
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        Compares the two trees and populates the window with the
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        differences.
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        """
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        self.rev_tree = branch.revision_tree(revid)
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        self.parent_tree = branch.revision_tree(parentid)
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        self.model.clear()
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        delta = compare_trees(self.parent_tree, self.rev_tree)
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        if len(delta.added):
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            titer = self.model.append(None, [ "Added", None ])
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            for path, id, kind in delta.added:
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                self.model.append(titer, [ path, path ])
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        if len(delta.removed):
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            titer = self.model.append(None, [ "Removed", None ])
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            for path, id, kind in delta.removed:
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                self.model.append(titer, [ path, path ])
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        if len(delta.renamed):
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            titer = self.model.append(None, [ "Renamed", None ])
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            for oldpath, newpath, id, kind, text_modified, meta_modified \
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                    in delta.renamed:
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                self.model.append(titer, [ oldpath, oldpath ])
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        if len(delta.modified):
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            titer = self.model.append(None, [ "Modified", None ])
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            for path, id, kind, text_modified, meta_modified in delta.modified:
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                self.model.append(titer, [ path, path ])
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        self.treeview.expand_all()
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        self.set_title(os.path.basename(branch.base) + " - bzrk diff")
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    def _treeview_cursor_cb(self, *args):
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        """Callback for when the treeview cursor changes."""
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        (path, col) = self.treeview.get_cursor()
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        path = self.model[path][1]
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        if path is None:
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            return
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        s = StringIO()
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        show_diff_trees(self.parent_tree, self.rev_tree, s, [ path ])
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        self.buffer.set_text(s.getvalue())