/b-gtk/fix-viz

"""Branch window.

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

which contains both the revision graph and details panes.

"""

__copyright__ = "Copyright (c) 2005 Canonical Ltd."

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

import gtk

from bzrlib.plugins.gtk import icon_path

from bzrlib.plugins.gtk.branchview import TreeView

from bzrlib.plugins.gtk.preferences import PreferencesWindow

from bzrlib.plugins.gtk.revisionmenu import RevisionMenu

from bzrlib.plugins.gtk.window import Window

from bzrlib.config import GlobalConfig

from bzrlib.revision import NULL_REVISION

from bzrlib.trace import mutter

class BranchWindow(Window):

    """Branch window.

    This object represents and manages a single window containing information

    for a particular branch.

    """

    def __init__(self, branch, start_revs, maxnum, parent=None):

        """Create a new BranchWindow.

        :param branch: Branch object for branch to show.

        :param start_revs: Revision ids of top revisions.

        :param maxnum: Maximum number of revisions to display, 

                       None for no limit.

        """

        Window.__init__(self, parent=parent)

        self.set_border_width(0)

        self.branch      = branch

        self.start_revs  = start_revs

        self.maxnum      = maxnum

        self.config      = GlobalConfig()

        if self.config.get_user_option('viz-compact-view') == 'yes':

            self.compact_view = True

        else:

            self.compact_view = False

        self.set_title(branch._get_nick(local=True) + " - revision history")

        # user-configured window size

        size = self._load_size('viz-window-size')

        if size:

            width, height = size

        else:

            # 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)

        self.set_size_request(width/3, height/3)

        self._save_size_on_destroy(self, 'viz-window-size')

        # FIXME AndyFitz!

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

        self.set_icon(icon)

        gtk.accel_map_add_entry("<viz>/Go/Next Revision", gtk.keysyms.Up, gtk.gdk.MOD1_MASK)

        gtk.accel_map_add_entry("<viz>/Go/Previous Revision", gtk.keysyms.Down, gtk.gdk.MOD1_MASK)

        gtk.accel_map_add_entry("<viz>/View/Refresh", gtk.keysyms.F5, 0)

        self.accel_group = gtk.AccelGroup()

        self.add_accel_group(self.accel_group)

        if getattr(gtk.Action, 'set_tool_item_type', None) is not None:

            # Not available before PyGtk-2.10

            gtk.Action.set_tool_item_type(gtk.MenuToolButton)

        self.prev_rev_action = gtk.Action("prev-rev", "_Previous Revision", "Go to the previous revision", gtk.STOCK_GO_DOWN)

        self.prev_rev_action.set_accel_path("<viz>/Go/Previous Revision")

        self.prev_rev_action.set_accel_group(self.accel_group)

        self.prev_rev_action.connect("activate", self._back_clicked_cb)

        self.prev_rev_action.connect_accelerator()

        self.next_rev_action = gtk.Action("next-rev", "_Next Revision", "Go to the next revision", gtk.STOCK_GO_UP)

        self.next_rev_action.set_accel_path("<viz>/Go/Next Revision")

        self.next_rev_action.set_accel_group(self.accel_group)

        self.next_rev_action.connect("activate", self._fwd_clicked_cb)

        self.next_rev_action.connect_accelerator()

        self.refresh_action = gtk.Action("refresh", "_Refresh", "Refresh view", gtk.STOCK_REFRESH)

        self.refresh_action.set_accel_path("<viz>/View/Refresh")

        self.refresh_action.set_accel_group(self.accel_group)

        self.refresh_action.connect("activate", self._refresh_clicked)

        self.refresh_action.connect_accelerator()

        self.construct()

    def _save_size_on_destroy(self, widget, config_name):

        """Creates a hook that saves the size of widget to config option 

           config_name when the window is destroyed/closed."""

        def save_size(src):

            width, height = widget.allocation.width, widget.allocation.height

            value = '%sx%s' % (width, height)

            self.config.set_user_option(config_name, value)

        self.connect("destroy", save_size)

    def set_revision(self, revid):

        self.treeview.set_revision_id(revid)

    def construct(self):

        """Construct the window contents."""

        vbox = gtk.VBox(spacing=0)

        self.add(vbox)

        self.paned = gtk.VPaned()

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

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

        self.paned.show()

        nav = self.construct_navigation()

        menubar = self.construct_menubar()

        vbox.pack_start(menubar, expand=False, fill=True)

        vbox.pack_start(nav, expand=False, fill=True)

        vbox.pack_start(self.paned, expand=True, fill=True)

        vbox.set_focus_child(self.paned)

        self.treeview.connect('revision-selected',

                self._treeselection_changed_cb)

        self.treeview.connect('revision-activated',

                self._tree_revision_activated)

        self.treeview.connect('tag-added', lambda w, t, r: self._update_tags())

        vbox.show()

    def construct_menubar(self):

        menubar = gtk.MenuBar()

        file_menu = gtk.Menu()

        file_menuitem = gtk.MenuItem("_File")

        file_menuitem.set_submenu(file_menu)

        file_menu_close = gtk.ImageMenuItem(gtk.STOCK_CLOSE, self.accel_group)

        file_menu_close.connect('activate', lambda x: self.destroy())

        file_menu_quit = gtk.ImageMenuItem(gtk.STOCK_QUIT, self.accel_group)

        file_menu_quit.connect('activate', lambda x: gtk.main_quit())

        if self._parent is not None:

            file_menu.add(file_menu_close)

        file_menu.add(file_menu_quit)

        edit_menu = gtk.Menu()

        edit_menuitem = gtk.MenuItem("_Edit")

        edit_menuitem.set_submenu(edit_menu)

        edit_menu_branchopts = gtk.MenuItem("Branch Settings")

        edit_menu_branchopts.connect('activate', lambda x: PreferencesWindow(self.branch.get_config()).show())

        edit_menu_globopts = gtk.MenuItem("Global Settings")

        edit_menu_globopts.connect('activate', lambda x: PreferencesWindow().show())

        edit_menu.add(edit_menu_branchopts)

        edit_menu.add(edit_menu_globopts)

        view_menu = gtk.Menu()

        view_menuitem = gtk.MenuItem("_View")

        view_menuitem.set_submenu(view_menu)

        view_menu_refresh = self.refresh_action.create_menu_item()

        view_menu_refresh.connect('activate', self._refresh_clicked)

        view_menu.add(view_menu_refresh)

        view_menu.add(gtk.SeparatorMenuItem())

        view_menu_toolbar = gtk.CheckMenuItem("Show Toolbar")

        view_menu_toolbar.set_active(True)

        if self.config.get_user_option('viz-toolbar-visible') == 'False':

            view_menu_toolbar.set_active(False)

            self.toolbar.hide()

        view_menu_toolbar.connect('toggled', self._toolbar_visibility_changed)

        view_menu_compact = gtk.CheckMenuItem("Show Compact Graph")

        view_menu_compact.set_active(self.compact_view)

        view_menu_compact.connect('activate', self._brokenlines_toggled_cb)

        view_menu_diffs = gtk.CheckMenuItem("Show Diffs")

        view_menu_diffs.set_active(False)

        if self.config.get_user_option('viz-show-diffs') == 'True':

            view_menu_diffs.set_active(True)

        view_menu_diffs.connect('toggled', self._diff_visibility_changed)

        view_menu_wide_diffs = gtk.CheckMenuItem("Wide Diffs")

        view_menu_wide_diffs.set_active(False)

        if self.config.get_user_option('viz-wide-diffs') == 'True':

            view_menu_wide_diffs.set_active(True)

        view_menu_wide_diffs.connect('toggled', self._diff_placement_changed)

        view_menu_wrap_diffs = gtk.CheckMenuItem("Wrap _Long Lines in Diffs")

        view_menu_wrap_diffs.set_active(False)

        if self.config.get_user_option('viz-wrap-diffs') == 'True':

            view_menu_wrap_diffs.set_active(True)

        view_menu_wrap_diffs.connect('toggled', self._diff_wrap_changed)

        view_menu.add(view_menu_toolbar)

        view_menu.add(view_menu_compact)

        view_menu.add(gtk.SeparatorMenuItem())

        view_menu.add(view_menu_diffs)

        view_menu.add(view_menu_wide_diffs)

        view_menu.add(view_menu_wrap_diffs)

        view_menu.add(gtk.SeparatorMenuItem())

        self.mnu_show_revno_column = gtk.CheckMenuItem("Show Revision _Number Column")

        self.mnu_show_date_column = gtk.CheckMenuItem("Show _Date Column")

        # Revision numbers are pointless if there are multiple branches

        if len(self.start_revs) > 1:

            self.mnu_show_revno_column.set_sensitive(False)

            self.treeview.set_property('revno-column-visible', False)

        for (col, name) in [(self.mnu_show_revno_column, "revno"), 

                            (self.mnu_show_date_column, "date")]:

            col.set_active(self.treeview.get_property(name + "-column-visible"))

            col.connect('toggled', self._col_visibility_changed, name)

            view_menu.add(col)

        go_menu = gtk.Menu()

        go_menu.set_accel_group(self.accel_group)

        go_menuitem = gtk.MenuItem("_Go")

        go_menuitem.set_submenu(go_menu)

        go_menu_next = self.next_rev_action.create_menu_item()

        go_menu_prev = self.prev_rev_action.create_menu_item()

        tag_image = gtk.Image()

        tag_image.set_from_file(icon_path("tag-16.png"))

        self.go_menu_tags = gtk.ImageMenuItem("_Tags")

        self.go_menu_tags.set_image(tag_image)

        self.treeview.connect('refreshed', lambda w: self._update_tags())

        go_menu.add(go_menu_next)

        go_menu.add(go_menu_prev)

        go_menu.add(gtk.SeparatorMenuItem())

        go_menu.add(self.go_menu_tags)

        self.revision_menu = RevisionMenu(self.branch.repository, [], self.branch, parent=self)

        revision_menuitem = gtk.MenuItem("_Revision")

        revision_menuitem.set_submenu(self.revision_menu)

        branch_menu = gtk.Menu()

        branch_menuitem = gtk.MenuItem("_Branch")

        branch_menuitem.set_submenu(branch_menu)

        branch_menu.add(gtk.MenuItem("Pu_ll Revisions"))

        branch_menu.add(gtk.MenuItem("Pu_sh Revisions"))

        try:

            from bzrlib.plugins import search

        except ImportError:

            mutter("Didn't find search plugin")

        else:

            branch_menu.add(gtk.SeparatorMenuItem())

            branch_index_menuitem = gtk.MenuItem("_Index")

            branch_index_menuitem.connect('activate', self._branch_index_cb)

            branch_menu.add(branch_index_menuitem)

            branch_search_menuitem = gtk.MenuItem("_Search")

            branch_search_menuitem.connect('activate', self._branch_search_cb)

            branch_menu.add(branch_search_menuitem)

        help_menu = gtk.Menu()

        help_menuitem = gtk.MenuItem("_Help")

        help_menuitem.set_submenu(help_menu)

        help_about_menuitem = gtk.ImageMenuItem(gtk.STOCK_ABOUT, self.accel_group)

        help_about_menuitem.connect('activate', self._about_dialog_cb)

        help_menu.add(help_about_menuitem)

        menubar.add(file_menuitem)

        menubar.add(edit_menuitem)

        menubar.add(view_menuitem)

        menubar.add(go_menuitem)

        menubar.add(revision_menuitem)

        menubar.add(branch_menuitem)

        menubar.add(help_menuitem)

        menubar.show_all()

        return menubar

    def construct_top(self):

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

        # FIXME: Make broken_line_length configurable

        self.treeview = TreeView(self.branch, self.start_revs, self.maxnum, self.compact_view)

        for col in ["revno", "date"]:

            option = self.config.get_user_option(col + '-column-visible')

            if option is not None:

                self.treeview.set_property(col + '-column-visible', option == 'True')

            else:

                self.treeview.set_property(col + '-column-visible', False)

        self.treeview.show()

        align = gtk.Alignment(0.0, 0.0, 1.0, 1.0)

        align.set_padding(5, 0, 0, 0)

        align.add(self.treeview)

        # user-configured size

        size = self._load_size('viz-graph-size')

        if size:

            width, height = size

            align.set_size_request(width, height)

        else:

            (width, height) = self.get_size()

            align.set_size_request(width, int(height / 2.5))

        self._save_size_on_destroy(align, 'viz-graph-size')

        align.show()

        return align

    def construct_navigation(self):

        """Construct the navigation buttons."""

        self.toolbar = gtk.Toolbar()

        self.toolbar.set_style(gtk.TOOLBAR_BOTH_HORIZ)

        self.prev_button = self.prev_rev_action.create_tool_item()

        self.toolbar.insert(self.prev_button, -1)

        self.next_button = self.next_rev_action.create_tool_item()

        self.toolbar.insert(self.next_button, -1)

        self.toolbar.insert(gtk.SeparatorToolItem(), -1)

        refresh_button = gtk.ToolButton(gtk.STOCK_REFRESH)

        refresh_button.connect('clicked', self._refresh_clicked)

        self.toolbar.insert(refresh_button, -1)

        self.toolbar.show_all()

        return self.toolbar

    def construct_bottom(self):

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

        if self.config.get_user_option('viz-wide-diffs') == 'True':

            self.diff_paned = gtk.VPaned()

        else:

            self.diff_paned = gtk.HPaned()

        (width, height) = self.get_size()

        self.diff_paned.set_size_request(20, 20) # shrinkable

        from bzrlib.plugins.gtk.revisionview import RevisionView

        self.revisionview = RevisionView(branch=self.branch)

        self.revisionview.set_size_request(width/3, int(height / 2.5))

        # user-configured size

        size = self._load_size('viz-revisionview-size')

        if size:

            width, height = size

            self.revisionview.set_size_request(width, height)

        self._save_size_on_destroy(self.revisionview, 'viz-revisionview-size')

        self.revisionview.show()

        self.revisionview.set_show_callback(self._show_clicked_cb)

        self.revisionview.connect('notify::revision', self._go_clicked_cb)

        self.treeview.connect('tag-added', lambda w, t, r: self.revisionview.update_tags())

        self.diff_paned.pack1(self.revisionview)

        from bzrlib.plugins.gtk.diff import DiffWidget

        self.diff = DiffWidget()

        self.diff_paned.pack2(self.diff)

        self.diff_paned.show_all()

        if self.config.get_user_option('viz-show-diffs') != 'True':

            self.diff.hide()

        return self.diff_paned

    def _tag_selected_cb(self, menuitem, revid):

        self.treeview.set_revision_id(revid)

    def _treeselection_changed_cb(self, selection, *args):

        """callback for when the treeview changes."""

        revision = self.treeview.get_revision()

        parents  = self.treeview.get_parents()

        children = self.treeview.get_children()

        self.revision_menu.set_revision_ids([revision.revision_id])

        if revision and revision != NULL_REVISION:

            prev_menu = gtk.Menu()

            if len(parents) > 0:

                self.prev_rev_action.set_sensitive(True)

                for parent_id in parents:

                    if parent_id and parent_id != NULL_REVISION:

                        parent = self.branch.repository.get_revision(parent_id)

                        try:

                            str = ' (' + parent.properties['branch-nick'] + ')'

                        except KeyError:

                            str = ""

                        item = gtk.MenuItem(parent.message.split("\n")[0] + str)

                        item.connect('activate', self._set_revision_cb, parent_id)

                        prev_menu.add(item)

                prev_menu.show_all()

            else:

                self.prev_rev_action.set_sensitive(False)

                prev_menu.hide()

            if getattr(self.prev_button, 'set_menu', None) is not None:

                self.prev_button.set_menu(prev_menu)

            next_menu = gtk.Menu()

            if len(children) > 0:

                self.next_rev_action.set_sensitive(True)

                for child_id in children:

                    child = self.branch.repository.get_revision(child_id)

                    try:

                        str = ' (' + child.properties['branch-nick'] + ')'

                    except KeyError:

                        str = ""

                    item = gtk.MenuItem(child.message.split("\n")[0] + str)

                    item.connect('activate', self._set_revision_cb, child_id)

                    next_menu.add(item)

                next_menu.show_all()

            else:

                self.next_rev_action.set_sensitive(False)

                next_menu.hide()

            if getattr(self.next_button, 'set_menu', None) is not None:

                self.next_button.set_menu(next_menu)

            self.revisionview.set_revision(revision)

            self.revisionview.set_children(children)

            self.update_diff_panel(revision, parents)

    def _tree_revision_activated(self, widget, path, col):

        # TODO: more than one parent

        """Callback for when a treeview row gets activated."""

        revision = self.treeview.get_revision()

        parents  = self.treeview.get_parents()

        if len(parents) == 0:

            parent_id = NULL_REVISION

        else:

            parent_id = parents[0]

        self.show_diff(revision.revision_id, parent_id)

        self.treeview.grab_focus()

    def _back_clicked_cb(self, *args):

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

        self.treeview.back()

    def _fwd_clicked_cb(self, *args):

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

        self.treeview.forward()

    def _go_clicked_cb(self, w, p):

        """Callback for when the go button for a parent is clicked."""

        if self.revisionview.get_revision() is not None:

            self.treeview.set_revision(self.revisionview.get_revision())

    def _show_clicked_cb(self, revid, parentid):

        """Callback for when the show button for a parent is clicked."""

        self.show_diff(revid, parentid)

        self.treeview.grab_focus()

    def _set_revision_cb(self, w, revision_id):

        self.treeview.set_revision_id(revision_id)

    def _brokenlines_toggled_cb(self, button):

        self.compact_view = button.get_active()

        if self.compact_view:

            option = 'yes'

        else:

            option = 'no'

        self.config.set_user_option('viz-compact-view', option)

        self.treeview.set_property('compact', self.compact_view)

        self.treeview.refresh()

    def _branch_index_cb(self, w):

        from bzrlib.plugins.search import index as _mod_index

        _mod_index.index_url(self.branch.base)

    def _branch_search_cb(self, w):

        from bzrlib.plugins.search import index as _mod_index

        from bzrlib.plugins.gtk.search import SearchDialog

        from bzrlib.plugins.search import errors as search_errors

        try:

            index = _mod_index.open_index_url(self.branch.base)

        except search_errors.NoSearchIndex:

            dialog = gtk.MessageDialog(self, type=gtk.MESSAGE_QUESTION, 

                buttons=gtk.BUTTONS_OK_CANCEL, 

                message_format="This branch has not been indexed yet. "

                               "Index now?")

            if dialog.run() == gtk.RESPONSE_OK:

                dialog.destroy()

                index = _mod_index.index_url(self.branch.base)

            else:

                dialog.destroy()

                return

        dialog = SearchDialog(index)

        if dialog.run() == gtk.RESPONSE_OK:

            self.set_revision(dialog.get_revision())

        dialog.destroy()

    def _about_dialog_cb(self, w):

        from bzrlib.plugins.gtk.about import AboutDialog

        AboutDialog().run()

    def _col_visibility_changed(self, col, property):

        self.config.set_user_option(property + '-column-visible', col.get_active())

        self.treeview.set_property(property + '-column-visible', col.get_active())

    def _toolbar_visibility_changed(self, col):

        if col.get_active():

            self.toolbar.show()

        else:

            self.toolbar.hide()

        self.config.set_user_option('viz-toolbar-visible', col.get_active())

    def _make_diff_nonzero_size(self):

        """make sure the diff isn't zero-width or zero-height"""

        alloc = self.diff.get_allocation()

        if (alloc.width < 10) or (alloc.height < 10):

            width, height = self.get_size()

            self.revisionview.set_size_request(width/3, int(height / 2.5))

    def _diff_visibility_changed(self, col):

        """Hide or show the diff panel."""

        if col.get_active():

            self.diff.show()

            self._make_diff_nonzero_size()

        else:

            self.diff.hide()

        self.config.set_user_option('viz-show-diffs', str(col.get_active()))

        self.update_diff_panel()