/b-gtk/fix-viz

To get this branch, use:
bzr branch http://gegoxaren.bato24.eu/bzr/b-gtk/fix-viz

« back to all changes in this revision

Viewing changes to viz/diffwin.py

  • Committer: Jelmer Vernooij
  • Date: 2007-02-03 11:52:13 UTC
  • Revision ID: jelmer@samba.org-20070203115213-qz5549tkrt2wsz05
Move more code to top-level directory. 
Import (last proposed) logo for Bazaar.

Show diffs side-by-side

added added

removed removed

Lines of Context:
viz/diffwin.py
 
1
#!/usr/bin/python
 
2
# -*- coding: UTF-8 -*-
 
3
"""Difference window.
 
4
 
 
5
This module contains the code to manage the diff window which shows
 
6
the changes made between two revisions on a branch.
 
7
"""
 
8
 
 
9
__copyright__ = "Copyright © 2005 Canonical Ltd."
 
10
__author__    = "Scott James Remnant <scott@ubuntu.com>"
 
11
 
 
12
 
 
13
from cStringIO import StringIO
 
14
 
 
15
import gtk
 
16
import pango
 
17
import sys
 
18
 
 
19
try:
 
20
    import gtksourceview
 
21
    have_gtksourceview = True
 
22
except ImportError:
 
23
    have_gtksourceview = False
 
24
 
 
25
import bzrlib
 
26
 
 
27
from bzrlib.diff import show_diff_trees
 
28
from bzrlib.errors import NoSuchFile
 
29
 
 
30
 
 
31
class DiffWindow(gtk.Window):
 
32
    """Diff window.
 
33
 
 
34
    This object represents and manages a single window containing the
 
35
    differences between two revisions on a branch.
 
36
    """
 
37
 
 
38
    def __init__(self):
 
39
        gtk.Window.__init__(self, gtk.WINDOW_TOPLEVEL)
 
40
        self.set_border_width(0)
 
41
        self.set_title("bzrk diff")
 
42
 
 
43
        # Use two thirds of the screen by default
 
44
        screen = self.get_screen()
 
45
        monitor = screen.get_monitor_geometry(0)
 
46
        width = int(monitor.width * 0.66)
 
47
        height = int(monitor.height * 0.66)
 
48
        self.set_default_size(width, height)
 
49
 
 
50
        self.construct()
 
51
 
 
52
    def construct(self):
 
53
        """Construct the window contents."""
 
54
        # The   window  consists  of   a  pane   containing:  the
 
55
        # hierarchical list  of files on  the left, and  the diff
 
56
        # for the currently selected file on the right.
 
57
        pane = gtk.HPaned()
 
58
        self.add(pane)
 
59
        pane.show()
 
60
 
 
61
        # The file hierarchy: a scrollable treeview
 
62
        scrollwin = gtk.ScrolledWindow()
 
63
        scrollwin.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
 
64
        scrollwin.set_shadow_type(gtk.SHADOW_IN)
 
65
        pane.pack1(scrollwin)
 
66
        scrollwin.show()
 
67
 
 
68
        self.model = gtk.TreeStore(str, str)
 
69
        self.treeview = gtk.TreeView(self.model)
 
70
        self.treeview.set_headers_visible(False)
 
71
        self.treeview.set_search_column(1)
 
72
        self.treeview.connect("cursor-changed", self._treeview_cursor_cb)
 
73
        scrollwin.add(self.treeview)
 
74
        self.treeview.show()
 
75
 
 
76
        cell = gtk.CellRendererText()
 
77
        cell.set_property("width-chars", 20)
 
78
        column = gtk.TreeViewColumn()
 
79
        column.pack_start(cell, expand=True)
 
80
        column.add_attribute(cell, "text", 0)
 
81
        self.treeview.append_column(column)
 
82
 
 
83
        # The diffs of the  selected file: a scrollable source or
 
84
        # text view
 
85
        scrollwin = gtk.ScrolledWindow()
 
86
        scrollwin.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
 
87
        scrollwin.set_shadow_type(gtk.SHADOW_IN)
 
88
        pane.pack2(scrollwin)
 
89
        scrollwin.show()
 
90
 
 
91
        if have_gtksourceview:
 
92
            self.buffer = gtksourceview.SourceBuffer()
 
93
            slm = gtksourceview.SourceLanguagesManager()
 
94
            gsl = slm.get_language_from_mime_type("text/x-patch")
 
95
            self.buffer.set_language(gsl)
 
96
            self.buffer.set_highlight(True)
 
97
 
 
98
            sourceview = gtksourceview.SourceView(self.buffer)
 
99
        else:
 
100
            self.buffer = gtk.TextBuffer()
 
101
            sourceview = gtk.TextView(self.buffer)
 
102
 
 
103
        sourceview.set_editable(False)
 
104
        sourceview.modify_font(pango.FontDescription("Monospace"))
 
105
        scrollwin.add(sourceview)
 
106
        sourceview.show()
 
107
 
 
108
    def set_diff(self, description, rev_tree, parent_tree):
 
109
        """Set the differences showed by this window.
 
110
 
 
111
        Compares the two trees and populates the window with the
 
112
        differences.
 
113
        """
 
114
        self.rev_tree = rev_tree
 
115
        self.parent_tree = parent_tree
 
116
 
 
117
        self.model.clear()
 
118
        delta = self.rev_tree.changes_from(self.parent_tree)
 
119
 
 
120
        self.model.append(None, [ "Complete Diff", "" ])
 
121
 
 
122
        if len(delta.added):
 
123
            titer = self.model.append(None, [ "Added", None ])
 
124
            for path, id, kind in delta.added:
 
125
                self.model.append(titer, [ path, path ])
 
126
 
 
127
        if len(delta.removed):
 
128
            titer = self.model.append(None, [ "Removed", None ])
 
129
            for path, id, kind in delta.removed:
 
130
                self.model.append(titer, [ path, path ])
 
131
 
 
132
        if len(delta.renamed):
 
133
            titer = self.model.append(None, [ "Renamed", None ])
 
134
            for oldpath, newpath, id, kind, text_modified, meta_modified \
 
135
                    in delta.renamed:
 
136
                self.model.append(titer, [ oldpath, newpath ])
 
137
 
 
138
        if len(delta.modified):
 
139
            titer = self.model.append(None, [ "Modified", None ])
 
140
            for path, id, kind, text_modified, meta_modified in delta.modified:
 
141
                self.model.append(titer, [ path, path ])
 
142
 
 
143
        self.treeview.expand_all()
 
144
        self.set_title(description + " - bzrk diff")
 
145
 
 
146
    def set_file(self, file_path):
 
147
        tv_path = None
 
148
        for data in self.model:
 
149
            for child in data.iterchildren():
 
150
                if child[0] == file_path or child[1] == file_path:
 
151
                    tv_path = child.path
 
152
                    break
 
153
        if tv_path is None:
 
154
            raise NoSuchFile(file_path)
 
155
        self.treeview.set_cursor(tv_path)
 
156
        self.treeview.scroll_to_cell(tv_path)
 
157
 
 
158
    def _treeview_cursor_cb(self, *args):
 
159
        """Callback for when the treeview cursor changes."""
 
160
        (path, col) = self.treeview.get_cursor()
 
161
        specific_files = [ self.model[path][1] ]
 
162
        if specific_files == [ None ]:
 
163
            return
 
164
        elif specific_files == [ "" ]:
 
165
            specific_files = []
 
166
 
 
167
        s = StringIO()
 
168
        show_diff_trees(self.parent_tree, self.rev_tree, s, specific_files)
 
169
        self.buffer.set_text(s.getvalue().decode(sys.getdefaultencoding(), 'replace'))