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# Copyright (C) 2007, One Laptop Per Child
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
import sys
import logging
from gettext import gettext as _
import gobject
import gtk
import hippo
from sugar.graphics import units
from sugar.graphics.roundbox import RoundBox
from sugar.graphics.menu import Menu, MenuItem
from sugar.graphics import iconbutton
from sugar.graphics import color
from sugar.graphics import font
from sugar.graphics.canvasicon import CanvasIcon
class _Menu(Menu):
def __init__(self):
Menu.__init__(self)
self._is_visible = False
def is_visible(self):
return self._is_visible
def popup(self, x, y):
Menu.popup(self, x, y)
self._is_visible = True
def popdown(self):
Menu.popdown(self)
self._is_visible = False
class OptionMenu(hippo.CanvasBox, hippo.CanvasItem):
__gtype_name__ = 'SugarOptionMenu'
__gproperties__ = {
'value' : (object, None, None,
gobject.PARAM_READWRITE)
}
__gsignals__ = {
'changed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ([]))
}
def __init__(self):
hippo.CanvasBox.__init__(self, orientation=hippo.ORIENTATION_HORIZONTAL)
self.props.yalign = hippo.ALIGNMENT_CENTER
self._value = None
self._round_box = RoundBox()
self._round_box.props.border_color = color.FRAME_BORDER.get_int()
self._round_box.props.spacing = units.points_to_pixels(3)
self._round_box.props.padding = units.points_to_pixels(3)
self.append(self._round_box, hippo.PACK_EXPAND)
self._canvas_text = hippo.CanvasText(text=_('No options'),
color=color.LABEL_TEXT.get_int(),
font_desc=font.DEFAULT.get_pango_desc(),
xalign=hippo.ALIGNMENT_START)
self._round_box.append(self._canvas_text, hippo.PACK_EXPAND)
arrow = iconbutton.IconButton(icon_name='theme:control-popup-arrow')
arrow.props.size = iconbutton.SMALL_SIZE
arrow.props.scale = units.STANDARD_ICON_SCALE
arrow.props.yalign = hippo.ALIGNMENT_CENTER
arrow.props.xalign = hippo.ALIGNMENT_START
self._round_box.append(arrow)
self._menu = _Menu()
self._menu.connect('action', self._menu_action_cb)
self._menu.connect('action-completed', self._menu_action_completed_cb)
self.connect('button-press-event', self._button_press_event_cb)
def do_set_property(self, pspec, value):
if pspec.name == 'value':
self._value = value
def do_get_property(self, pspec):
if pspec.name == 'value':
return self._value
def add_item(self, menu_item):
if self._value == None:
logging.debug('Setting default value to: ' + menu_item.props.label)
self._value = menu_item.props.action_id
self._canvas_text.props.text = menu_item.props.label
self._menu.add_item(menu_item)
def do_get_width_request(self):
max_width = max(self._canvas_text.do_get_content_width_request(self._canvas_text),
self._menu.do_get_content_width_request(self._menu))
self._canvas_text.props.box_width = max_width
current_width = hippo.CanvasBox.do_get_width_request(self)
self._menu.props.box_width = current_width
return current_width
def add_separator(self):
self._menu.add_separator()
def _button_press_event_cb(self, box, event):
if self._menu.is_visible():
self._menu.popdown()
else:
context = self._round_box.get_context()
[x, y] = context.translate_to_screen(self._round_box)
[width, height] = self._round_box.get_allocation()
self._menu.popup(x, y + height)
# Grab the pointer so the menu will popdown on mouse click.
self._menu.grab_pointer()
def _menu_action_cb(self, menu, menu_item):
action_id = menu_item.props.action_id
label = menu_item.props.label
if action_id != self._value:
self._value = action_id
self._canvas_text.props.text = label
self.emit('changed')
def _menu_action_completed_cb(self, menu):
self._menu.popdown()
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