/b-gtk/fix-viz

# Copyright (C) 2006 Szilveszter Farkas <szilveszter.farkas@gmail.com>

# Copyright (C) 2007 Jelmer Vernooij <jelmer@samba.org>

# 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

"""GTK UI

"""

import gtk

from bzrlib.ui import UIFactory

class PromptDialog(gtk.Dialog):

    """Prompt the user for a yes/no answer."""

    def __init__(self, prompt):

        gtk.Dialog.__init__(self)

        label = gtk.Label(prompt)

        self.vbox.pack_start(label, padding=10)

        self.vbox.show_all()

        self.add_buttons(gtk.STOCK_YES, gtk.RESPONSE_YES, gtk.STOCK_NO,

                         gtk.RESPONSE_NO)

class GtkProgressBar(gtk.ProgressBar):

    def __init__(self):

        gtk.ProgressBar.__init__(self)

        self.set_fraction(0.0)

        self.current = None

        self.total = None

    def tick(self):

        self.show()

        self.pulse()

    def update(self, msg=None, current_cnt=None, total_cnt=None):

        self.show()

        if current_cnt is not None:

            self.current = current_cnt

        if total_cnt is not None:

            self.total = total_cnt

        if msg is not None:

            self.set_text(msg)

        if None not in (self.current, self.total):

            self.fraction = float(self.current) / self.total

            if self.fraction < 0.0 or self.fraction > 1.0:

                raise AssertionError

            self.set_fraction(self.fraction)

        while gtk.events_pending():

            gtk.main_iteration()

    def finished(self):

        self.hide()

    def clear(self):

        self.hide()

class ProgressBarWindow(gtk.Window):

    def __init__(self):

        super(ProgressBarWindow, self).__init__(type=gtk.WINDOW_TOPLEVEL)

        self.set_border_width(0)

        self.set_title("Progress")

        self.set_position(gtk.WIN_POS_CENTER_ALWAYS)

        self.pb = GtkProgressBar()

        self.add(self.pb)

        self.resize(250, 15)

        self.set_resizable(False)

    def tick(self, *args, **kwargs):

        self.show_all()

        self.pb.tick(*args, **kwargs)

    def update(self, *args, **kwargs):

        self.show_all()

        self.pb.update(*args, **kwargs)

    def finished(self):

        self.pb.finished()

        self.hide_all()

        self.destroy()

    def clear(self):

        self.pb.clear()

        self.hide_all()

class ProgressPanel(gtk.HBox):

    def __init__(self):

        super(ProgressPanel, self).__init__()

        image_loading = gtk.image_new_from_stock(gtk.STOCK_REFRESH,

                                                 gtk.ICON_SIZE_BUTTON)

        image_loading.show()

        self.pb = GtkProgressBar()

        self.set_spacing(5)

        self.set_border_width(5)

        self.pack_start(image_loading, False, False)

        self.pack_start(self.pb, True, True)

    def tick(self, *args, **kwargs):

        self.show_all()

        self.pb.tick(*args, **kwargs)

    def update(self, *args, **kwargs):

        self.show_all()

        self.pb.update(*args, **kwargs)

    def finished(self):

        self.pb.finished()

        self.hide_all()

    def clear(self):

        self.pb.clear()

        self.hide_all()

class PasswordDialog(gtk.Dialog):

    """ Prompt the user for a password. """

    def __init__(self, prompt):

        gtk.Dialog.__init__(self)

        label = gtk.Label(prompt)

        self.vbox.pack_start(label, padding=10)

        self.entry = gtk.Entry()

        self.entry.set_visibility(False)

        self.vbox.pack_end(self.entry, padding=10)

        self.vbox.show_all()

        self.add_buttons(gtk.STOCK_OK, gtk.RESPONSE_OK,

                         gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)

    def _get_passwd(self):

        return self.entry.get_text()

    passwd = property(_get_passwd)

class GtkUIFactory(UIFactory):

    """A UI factory for GTK user interfaces."""

    def __init__(self):

        """Create a GtkUIFactory"""

        super(GtkUIFactory, self).__init__()

        self.set_progress_bar_widget(None)

    def set_progress_bar_widget(self, widget):

        self._progress_bar_widget = widget

    def get_boolean(self, prompt):

        """GtkDialog with yes/no answers"""

        dialog = PromptDialog(prompt)

        response = dialog.run()

        dialog.destroy()

        return (response == gtk.RESPONSE_YES)

    def get_password(self, prompt='', **kwargs):

        """Prompt the user for a password.

        :param prompt: The prompt to present the user

        :param kwargs: Arguments which will be expanded into the prompt.

                       This lets front ends display different things if

                       they so choose.

        :return: The password string, return None if the user 

                 canceled the request.

        """

        dialog = PasswordDialog(prompt % kwargs)

        response = dialog.run()

        passwd = dialog.passwd

        dialog.destroy()

        if response == gtk.RESPONSE_OK:

            return passwd

        else:

            return None

    def _progress_all_finished(self):

        """See UIFactory._progress_all_finished"""

        pbw = self._progress_bar_widget

        if pbw:

            pbw.finished()

    def _progress_updated(self, task):

        """See UIFactory._progress_updated"""

        if self._progress_bar_widget is None:

            # Default to a window since nobody gave us a better mean to report

            # progress.

            self.set_progress_bar_widget(ProgressBarWindow())

        self._progress_bar_widget.update(task.msg,

                                         task.current_cnt, task.total_cnt)