/b-gtk/fix-viz

# Copyright (C) 2005 Dan Loda <danloda@gmail.com>

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

import time

from gi.repository import GObject

from gi.repository import Gdk

from gi.repository import Gtk

from gi.repository import Pango

import re

from bzrlib import patiencediff

from bzrlib.errors import NoSuchRevision

from bzrlib.revision import NULL_REVISION, CURRENT_REVISION

from bzrlib.plugins.gtk.annotate.colormap import AnnotateColorSaturation

from bzrlib.plugins.gtk.revisionview import RevisionView

from bzrlib.plugins.gtk.window import Window

(

    REVISION_ID_COL,

    LINE_NUM_COL,

    COMMITTER_COL,

    REVNO_COL,

    HIGHLIGHT_COLOR_COL,

    TEXT_LINE_COL

) = range(6)

class GAnnotateWindow(Window):

    """Annotate window."""

    def __init__(self, all=False, plain=False, parent=None, branch=None):

        self.all = all

        self.plain = plain

        self._branch = branch

        super(GAnnotateWindow, self).__init__(parent=parent)

        self.set_icon(

            self.render_icon_pixbuf(Gtk.STOCK_FIND, Gtk.IconSize.BUTTON))

        self.annotate_colormap = AnnotateColorSaturation()

        self._create()

        self.revisions = {}

        self.history = []

        self._no_back = set()

    def annotate(self, tree, branch, file_id):

        self.annotations = []

        self.branch = branch

        self.tree = tree

        self.file_id = file_id

        self.revisionview.set_file_id(file_id)

        self.revision_id = getattr(tree, 'get_revision_id', 

                                   lambda: CURRENT_REVISION)()

        # [revision id, line number, author, revno, highlight color, line]

        self.annomodel = Gtk.ListStore(GObject.TYPE_STRING,

                                       GObject.TYPE_INT,

                                       GObject.TYPE_STRING,

                                       GObject.TYPE_STRING,

                                       GObject.TYPE_STRING,

                                       GObject.TYPE_STRING)

        last_seen = None

        try:

            branch.lock_read()

            branch.repository.lock_read()

            self.dotted = {}

            revno_map = self.branch.get_revision_id_to_revno_map()

            for revision_id, revno in revno_map.iteritems():

                self.dotted[revision_id] = '.'.join(str(num) for num in revno)

            for line_no, (revision, revno, line)\

                in enumerate(self._annotate(tree, file_id)):

                if revision.revision_id == last_seen and not self.all:

                    revno = author = ""

                else:

                    last_seen = revision.revision_id

                    author = ", ".join(revision.get_apparent_authors())

                if revision.revision_id not in self.revisions:

                    self.revisions[revision.revision_id] = revision

                self.annomodel.append([revision.revision_id,

                                       line_no + 1,

                                       author,

                                       revno,

                                       None,

                                       line.rstrip("\r\n")

                                       ])

                self.annotations.append(revision)

            if not self.plain:

                now = time.time()

                self.annomodel.foreach(self._highlight_annotation, now)

        finally:

            branch.repository.unlock()

            branch.unlock()

        self.annoview.set_model(self.annomodel)

        self.annoview.grab_focus()

        my_revno = self.dotted.get(self.revision_id, 'current')

        title = '%s (%s) - gannotate' % (self.tree.id2path(file_id), my_revno)

        self.set_title(title)

    def jump_to_line(self, lineno):

        if lineno > len(self.annomodel) or lineno < 1:

            row = 0

            # FIXME:should really deal with this in the gui. Perhaps a status

            # bar?

            print("gannotate: Line number %d does't exist. Defaulting to "

                  "line 1." % lineno)

            return

        else:

            row = lineno - 1

        tree_path = Gtk.TreePath(path=row)

        self.annoview.set_cursor(tree_path, None, False)

        self.annoview.scroll_to_cell(tree_path, use_align=True)

    def _annotate(self, tree, file_id):

        current_revision = FakeRevision(CURRENT_REVISION)

        current_revision.committer = self.branch.get_config().username()

        current_revision.timestamp = time.time()

        current_revision.message = '[Not yet committed]'

        current_revision.parent_ids = tree.get_parent_ids()

        current_revision.properties['branch-nick'] = self.branch._get_nick(local=True)

        current_revno = '%d?' % (self.branch.revno() + 1)

        repository = self.branch.repository

        if self.revision_id == CURRENT_REVISION:

            revision_id = self.branch.last_revision()

        else:

            revision_id = self.revision_id

        revision_cache = RevisionCache(repository, self.revisions)

        for origin, text in tree.annotate_iter(file_id):

            rev_id = origin

            if rev_id == CURRENT_REVISION:

                revision = current_revision

                revno = current_revno

            else:

                try:

                    revision = revision_cache.get_revision(rev_id)

                    revno = self.dotted.get(rev_id, 'merge')

                    if len(revno) > 15:

                        revno = 'merge'

                except NoSuchRevision:

                    revision = FakeRevision(rev_id)

                    revno = "?"

            yield revision, revno, text

    def _highlight_annotation(self, model, path, iter, now):

        revision_id, = model.get(iter, REVISION_ID_COL)

        revision = self.revisions[revision_id]

        # XXX sinzui 2011-08-12: What does get_color return?

        color = self.annotate_colormap.get_color(revision, now)

        model.set_value(iter, HIGHLIGHT_COLOR_COL, color)

    def _selected_revision(self):

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

        if path is None:

            return None

        return self.annomodel[path][REVISION_ID_COL]

    def _activate_selected_revision(self, w):

        rev_id = self._selected_revision()

        if not rev_id or rev_id == NULL_REVISION:

            return

        selected = self.revisions[rev_id]

        self.revisionview.set_revision(selected)

        if (len(selected.parent_ids) != 0 and selected.parent_ids[0] not in

            self._no_back):

            enable_back = True

        else:

            enable_back = False

        self.back_button.set_sensitive(enable_back)

    def _create(self):

        self.revisionview = self._create_log_view()

        self.annoview = self._create_annotate_view()

        vbox = Gtk.VBox(homogeneous=False, spacing=0)

        vbox.show()

        sw = Gtk.ScrolledWindow()

        sw.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)

        sw.set_shadow_type(Gtk.ShadowType.IN)

        sw.add(self.annoview)

        self.annoview.gwindow = self

        sw.show()

        swbox = Gtk.VBox()

        swbox.pack_start(sw, True, True, 0)

        swbox.show()

        hbox = Gtk.HBox(homogeneous=False, spacing=6)

        self.back_button = self._create_back_button()

        hbox.pack_start(self.back_button, False, True, 0)

        self.forward_button = self._create_forward_button()

        hbox.pack_start(self.forward_button, False, True, 0)

        self.find_button = self._create_find_button()

        hbox.pack_start(self.find_button, False, True, 0)

        self.goto_button = self._create_goto_button()

        hbox.pack_start(self.goto_button, False, True, 0)

        hbox.show()

        vbox.pack_start(hbox, False, True, 0)

        self.pane = pane = Gtk.VPaned()

        pane.add1(swbox)

        pane.add2(self.revisionview)

        pane.show()

        vbox.pack_start(pane, True, True, 0)

        self._search = SearchBox()

        swbox.pack_start(self._search, False, True, 0)

        accels = Gtk.AccelGroup()

        accels.connect(Gdk.KEY_f, Gdk.ModifierType.CONTROL_MASK,

                             Gtk.AccelFlags.LOCKED,

                             self._search_by_text)

        accels.connect(Gdk.KEY_g, Gdk.ModifierType.CONTROL_MASK,

                             Gtk.AccelFlags.LOCKED,

                             self._search_by_line)

        self.add_accel_group(accels)

        self.add(vbox)

    def _search_by_text(self, *ignored): # (accel_group, window, key, modifiers):

        self._search.show_for('text')

        self._search.set_target(self.annoview, TEXT_LINE_COL)

    def _search_by_line(self, *ignored): # accel_group, window, key, modifiers):

        self._search.show_for('line')

        self._search.set_target(self.annoview, LINE_NUM_COL)

    def line_diff(self, tv, path, tvc):

        row = path.get_indices()[0]

        revision = self.annotations[row]

        repository = self.branch.repository

        if revision.revision_id == CURRENT_REVISION:

            tree1 = self.tree

            tree2 = self.tree.basis_tree()

        else:

            tree1 = repository.revision_tree(revision.revision_id)

            if len(revision.parent_ids) > 0:

                tree2 = repository.revision_tree(revision.parent_ids[0])

            else:

                tree2 = repository.revision_tree(NULL_REVISION)

        from bzrlib.plugins.gtk.diff import DiffWindow

        window = DiffWindow(self)

        window.set_diff("Diff for line %d" % (row+1), tree1, tree2)

        window.set_file(tree1.id2path(self.file_id))

        window.show()

    def _create_annotate_view(self):

        tv = Gtk.TreeView()

        tv.set_rules_hint(False)

        tv.connect("cursor-changed", self._activate_selected_revision)

        tv.show()

        tv.connect("row-activated", self.line_diff)

        cell = Gtk.CellRendererText()

        cell.set_property("xalign", 1.0)

        cell.set_property("ypad", 0)

        cell.set_property("family", "Monospace")

        cell.set_property("cell-background-gdk",

                          tv.get_style().bg[Gtk.StateType.NORMAL])

        col = Gtk.TreeViewColumn()

        col.set_resizable(False)

        col.pack_start(cell, True)

        col.add_attribute(cell, "text", LINE_NUM_COL)

        tv.append_column(col)

        cell = Gtk.CellRendererText()

        cell.set_property("ypad", 0)

        cell.set_property("ellipsize", Pango.EllipsizeMode.END)

        cell.set_property("cell-background-gdk",

                          self.get_style().bg[Gtk.StateType.NORMAL])

        col = Gtk.TreeViewColumn("Committer")

        col.set_resizable(True)

        col.pack_start(cell, True)

        col.add_attribute(cell, "text", COMMITTER_COL)

        tv.append_column(col)

        cell = Gtk.CellRendererText()

        cell.set_property("xalign", 1.0)

        cell.set_property("ypad", 0)

        cell.set_property("cell-background-gdk",

                          self.get_style().bg[Gtk.StateType.NORMAL])

        col = Gtk.TreeViewColumn("Revno")

        col.set_resizable(False)

        col.pack_start(cell, True)

        col.add_attribute(cell, "markup", REVNO_COL)

        tv.append_column(col)

        cell = Gtk.CellRendererText()

        cell.set_property("ypad", 0)

        cell.set_property("family", "Monospace")

        col = Gtk.TreeViewColumn()

        col.set_resizable(False)

        col.pack_start(cell, True)

#        col.add_attribute(cell, "foreground", HIGHLIGHT_COLOR_COL)

        col.add_attribute(cell, "background", HIGHLIGHT_COLOR_COL)

        col.add_attribute(cell, "text", TEXT_LINE_COL)

        tv.append_column(col)

        # interactive substring search

        def search_equal_func(model, column, key, iter):

            return model.get_value(iter, TEXT_LINE_COL).lower().find(key.lower()) == -1

        tv.set_enable_search(True)

        tv.set_search_equal_func(search_equal_func, None)

        return tv

    def _create_log_view(self):

        lv = RevisionView(self._branch)

        lv.show()

        return lv

    def _create_back_button(self):

        button = Gtk.Button()

        button.set_use_stock(True)

        button.set_label("gtk-go-back")

        button.connect("clicked", lambda w: self.go_back())

        button.set_relief(Gtk.ReliefStyle.NONE)

        button.show()

        return button

    def _create_forward_button(self):

        button = Gtk.Button()

        button.set_use_stock(True)

        button.set_label("gtk-go-forward")

        button.connect("clicked", lambda w: self.go_forward())

        button.set_relief(Gtk.ReliefStyle.NONE)

        button.show()

        button.set_sensitive(False)

        return button

    def _create_find_button(self):

        button = Gtk.Button()

        button.set_use_stock(True)

        button.set_label("gtk-find")

        button.set_tooltip_text("Search for text (Ctrl+F)")

        button.connect("clicked", self._search_by_text)

        button.set_relief(Gtk.ReliefStyle.NONE)

        button.show()

        button.set_sensitive(True)

        return button

    def _create_goto_button(self):

        button = Gtk.Button()

        button.set_label("Goto Line")

        button.set_tooltip_text("Scroll to a line by entering its number (Ctrl+G)")

        button.connect("clicked", self._search_by_line)

        button.set_relief(Gtk.ReliefStyle.NONE)

        button.show()

        button.set_sensitive(True)

        return button

    def go_back(self):

        last_tree = self.tree

        rev_id = self._selected_revision()

        parent_id = self.revisions[rev_id].parent_ids[0]

        target_tree = self.branch.repository.revision_tree(parent_id)

        if self._go(target_tree):

            self.history.append(last_tree)

            self.forward_button.set_sensitive(True)

        else:

            self._no_back.add(parent_id)

            self.back_button.set_sensitive(False)

    def go_forward(self):

        if len(self.history) == 0:

            return

        target_tree = self.history.pop()

        if len(self.history) == 0:

            self.forward_button.set_sensitive(False)

        self._go(target_tree)

    def _go(self, target_tree):

        rev_id = self._selected_revision()

        if self.file_id in target_tree:

            offset = self.get_scroll_offset(target_tree)

            path, col = self.annoview.get_cursor()

            (row,) = path.get_indices()

            self.annotate(target_tree, self.branch, self.file_id)

            new_row = row+offset

            if new_row < 0:

                new_row = 0

            new_path = Gtk.TreePath(path=new_row)

            self.annoview.set_cursor(new_path, None, False)

            return True

        else:

            return False

    def get_scroll_offset(self, tree):

        old = self.tree.get_file(self.file_id)

        new = tree.get_file(self.file_id)

        path, col = self.annoview.get_cursor()

        (row,) = path.get_indices()

        matcher = patiencediff.PatienceSequenceMatcher(None, old.readlines(),

                                                       new.readlines())

        for i, j, n in matcher.get_matching_blocks():

            if i + n >= row:

                return j - i

class FakeRevision(object):

    """ A fake revision.

    For when a revision is referenced but not present.

    """

    def __init__(self, revision_id, committer='?', nick=None):

        self.revision_id = revision_id

        self.parent_ids = []

        self.committer = committer

        self.message = "?"

        self.timestamp = 0.0

        self.timezone = 0

        self.properties = {}

    def get_apparent_authors(self):

        return [self.committer]

class RevisionCache(object):

    """A caching revision source"""

    def __init__(self, real_source, seed_cache=None):

        self.__real_source = real_source

        if seed_cache is None:

            self.__cache = {}

        else:

            self.__cache = dict(seed_cache)

    def get_revision(self, revision_id):

        if revision_id not in self.__cache:

            revision = self.__real_source.get_revision(revision_id)

            self.__cache[revision_id] = revision

        return self.__cache[revision_id]

class SearchBox(Gtk.HBox):

    """A button box for searching in text or lines of annotations"""

    def __init__(self):

        super(SearchBox, self).__init__(homogeneous=False, spacing=6)

        # Close button

        button = Gtk.Button()

        image = Gtk.Image()

        image.set_from_stock('gtk-stop', Gtk.IconSize.BUTTON)

        button.set_image(image)

        button.set_relief(Gtk.ReliefStyle.NONE)

        button.connect("clicked", lambda w: self.hide())

        self.pack_start(button, False, False, 0)

        # Search entry

        label = Gtk.Label()

        self._label = label

        self.pack_start(label, False, False, 0)

        entry = Gtk.Entry()

        self._entry = entry

        entry.connect("activate", lambda w, d: self._do_search(d),

                      'forward')

        self.pack_start(entry, False, False, 0)

        # Next/previous buttons

        button = Gtk.Button('_Next')

        image = Gtk.Image()

        image.set_from_stock('gtk-go-forward', Gtk.IconSize.BUTTON)

        button.set_image(image)

        button.connect("clicked", lambda w, d: self._do_search(d),

                       'forward')

        self.pack_start(button, False, False, 0)

        button = Gtk.Button('_Previous')

        image = Gtk.Image()

        image.set_from_stock('gtk-go-back', Gtk.IconSize.BUTTON)

        button.set_image(image)

        button.connect("clicked", lambda w, d: self._do_search(d),

                       'backward')

        self.pack_start(button, False, False, 0)

        # Search options

        check = Gtk.CheckButton('Match case')

        self._match_case = check

        self.pack_start(check, False, False, 0)

        check = Gtk.CheckButton('Regexp')

        check.connect("toggled", lambda w: self._set_label())

        self._regexp = check

        self.pack_start(check, False, False, 0)

        self._view = None

        self._column = None

        # Note that we stay hidden (we do not call self.show_all())

    def show_for(self, kind):

        self._kind = kind

        self.show_all()

        self._set_label()

        # Hide unrelated buttons

        if kind == 'line':

            self._match_case.hide()

            self._regexp.hide()

        # Be ready

        self._entry.grab_focus()

    def _set_label(self):

        if self._kind == 'line':

            self._label.set_text('Find Line: ')

        else:

            if self._regexp.get_active():

                self._label.set_text('Find Regexp: ')

            else:

                self._label.set_text('Find Text: ')

    def set_target(self, view,column):

        self._view = view

        self._column = column

    def _match(self, model, iterator, column):

        matching_case = self._match_case.get_active()

        cell_value, = model.get(iterator, column)

        key = self._entry.get_text()

        if column == LINE_NUM_COL:

            # FIXME: For goto-line there are faster algorithms than searching 

            # every line til we find the right one! -- mbp 2011-01-27

            return key.strip() == str(cell_value)