/b-gtk/fix-viz

# Copyright (C) 2006 by Szilveszter Farkas (Phanatic) <szilveszter.farkas@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 os

try:

    import pygtk

    pygtk.require("2.0")

except:

    pass

import gtk

import gtk.glade

from bzrlib.branch import Branch

from bzrlib.config import GlobalConfig

import bzrlib.errors as errors

from dialog import error_dialog, info_dialog

class BranchDialog(gtk.Dialog):

    """ New implementation of the Branch dialog. """

    def __init__(self, path=None, parent=None):

        """ Initialize the Branch dialog. """

        gtk.Dialog.__init__(self, title="Branch - Olive",

                                  parent=parent,

                                  flags=0,

                                  buttons=(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL))

        # Get arguments

        self.path = path

        # Create the widgets

        self._button_branch = gtk.Button(_("_Branch"), use_underline=True)

        self._button_revision = gtk.Button('')

        self._image_browse = gtk.Image()

        self._filechooser = gtk.FileChooserButton(_("Please select a folder"))

        self._combo = gtk.ComboBoxEntry()

        self._label_location = gtk.Label(_("Branch location:"))

        self._label_destination = gtk.Label(_("Destination:"))

        self._label_revision = gtk.Label(_("Revision:"))

        self._hbox_revision = gtk.HBox()

        self._entry_revision = gtk.Entry()

        # Set callbacks

        self._button_branch.connect('clicked', self._on_branch_clicked)

        self._button_revision.connect('clicked', self._on_revision_clicked)

        self._combo.connect('changed', self._on_combo_changed)

        # Create the table and pack the widgets into it

        self._table = gtk.Table(rows=3, columns=2)

        self._table.attach(self._label_location, 0, 1, 0, 1)

        self._table.attach(self._label_destination, 0, 1, 1, 2)

        self._table.attach(self._label_revision, 0, 1, 2, 3)

        self._table.attach(self._combo, 1, 2, 0, 1)

        self._table.attach(self._filechooser, 1, 2, 1, 2)

        self._table.attach(self._hbox_revision, 1, 2, 2, 3)

        # Set properties

        self._image_browse.set_from_stock(gtk.STOCK_OPEN, gtk.ICON_SIZE_BUTTON)

        self._button_revision.set_image(self._image_browse)

        self._button_revision.set_sensitive(False)

        self._filechooser.set_action(gtk.FILE_CHOOSER_ACTION_SELECT_FOLDER)

        self._label_location.set_alignment(0, 0.5)

        self._label_destination.set_alignment(0, 0.5)

        self._label_revision.set_alignment(0, 0.5)

        self._table.set_row_spacings(3)

        self._table.set_col_spacings(3)

        self.vbox.set_spacing(3)

        if self.path is not None:

            self._filechooser.set_filename(self.path)

        # Pack some widgets

        self._hbox_revision.pack_start(self._entry_revision, True, True)

        self._hbox_revision.pack_start(self._button_revision, False, False)

        self.vbox.add(self._table)

        self.action_area.pack_end(self._button_branch)

        # Show the dialog

        self.vbox.show_all()

        # Build branch history

        self._build_history()

    def _build_history(self):

        """ Build up the branch history. """

        config = GlobalConfig()

        history = config.get_user_option('gbranch_history')

        if history is not None:

            self._combo_model = gtk.ListStore(str)

            for item in history.split('|'):

                self._combo_model.append([ item ])

            self._combo.set_model(self._combo_model)

            self._combo.set_text_column(0)

    def _add_to_history(self, location):

        """ Add specified location to the history (if not yet added). """

        config = GlobalConfig()

        history = config.get_user_option('gbranch_history')

        if history is None:

            config.set_user_option('gbranch_history', location)

        else:

            h = history.split('|')

            if location not in h:

                h.append(location)

            config.set_user_option('gbranch_history', '|'.join(h))                

    def _get_last_revno(self):

        """ Get the revno of the last revision (if any). """

        location = self._combo.get_child().get_text()

        try:

            br = Branch.open(location)

        except:

            return None

        else:

            return br.revno()

    def _on_revision_clicked(self, button):

        """ Browse for revision button clicked handler. """

        from revbrowser import RevisionBrowser

        location = self._combo.get_child().get_text()

        try:

            br = Branch.open(location)

        except:

            return

        else:

            revb = RevisionBrowser(br, self)

            response = revb.run()

            if response != gtk.RESPONSE_NONE:

                revb.hide()

                if response == gtk.RESPONSE_OK:

                    if revb.selected_revno is not None:

                        self._entry_revision.set_text(revb.selected_revno)

                revb.destroy()

    def _on_branch_clicked(self, button):

        """ Branch button clicked handler. """

        location = self._combo.get_child().get_text()

        if location is '':

            error_dialog(_('Missing branch location'),

                         _('You must specify a branch location.'))

            return

        destination = self._filechooser.get_filename()

        if self._button_revision.get_label() != 'N/A':

            revno = int(self._entry_revision.get_text())

        else:

            revno = None

        try:

            br_from = Branch.open(location)

        except errors.NotBranchError:

            error_dialog(_('Location is not a branch'),

                         _('The specified location has to be a branch.'))

            return

        except OSError, e:

            if e.errno == errno.ENOENT:

                error_dialog(_('Non existing source'),

                             _("The location (%s)\ndoesn't exist.") % location)

        br_from.lock_read()

        try:

            from bzrlib.transport import get_transport

            try:

                revision_id = br_from.get_rev_id(revno)

            except errors.NoSuchRevision:

                error_dialog(_('No such revision'),

                             _("The revision you specified doesn't exist."))

                return

            basis_dir = None

            to_location = destination + '/' + os.path.basename(location.rstrip("/\\"))

            to_transport = get_transport(to_location)

            try:

                to_transport.mkdir('.')

            except errors.FileExists:

                error_dialog(_('Target already exists'),

                             _("Target directory (%s)\nalready exists. Please select another target.") % location)

                return

            except errors.NoSuchFile:

                error_dialog(_('Non existing parent directory'),

                             _("The parent directory of %s\ndoesn't exist.") % location)

                return

            try:

                # preserve whatever source format we have.

                dir = br_from.bzrdir.sprout(to_transport.base,

                                            revision_id,

                                            basis_dir)

                branch = dir.open_branch()

                revs = branch.revno()

            except errors.NoSuchRevision:

                to_transport.delete_tree('.')

                error_dialog(_('Non existing revision'),

                             _("The branch has no revision %s.") % revision[0])

                return

        finally:

            br_from.unlock()

        self._add_to_history(location)

        info_dialog(_('Branching successful'),

                    _('%d revision(s) branched.') % revs)

        self.response(gtk.RESPONSE_OK)

    def _on_combo_changed(self, widget):

        """ We try to get the last revision if focus lost. """

        rev = self._get_last_revno()

        if rev is None:

            self._entry_revision.set_text(_('N/A'))

            self._button_revision.set_sensitive(False)

        else:

            self._entry_revision.set_text(str(rev))

            self._button_revision.set_sensitive(True)