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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 gobject
import hippo
from sugar.graphics.canvasicon import CanvasIcon
from sugar.graphics.roundbox import RoundBox
from sugar.graphics import units
from sugar.graphics import color
from sugar.graphics import font
class Button(hippo.CanvasBox, hippo.CanvasItem):
__gtype_name__ = 'SugarButton'
__gproperties__ = {
'active' : (bool, None, None, True,
gobject.PARAM_READWRITE),
'icon-name' : (str, None, None, None,
gobject.PARAM_READWRITE),
'text' : (str, None, None, None,
gobject.PARAM_READWRITE)
}
def __init__(self, **kwargs):
self._active = True
self._icon = None
self._round_box = RoundBox()
self._round_box.props.border_color = color.BLACK.get_int()
self._round_box.props.background_color = color.BLACK.get_int()
self._round_box.props.padding_top = units.points_to_pixels(1)
self._round_box.props.padding_bottom = units.points_to_pixels(1)
self._round_box.props.spacing = units.points_to_pixels(3)
self._text_box = hippo.CanvasText()
self._text_box.props.font_desc = font.DEFAULT.get_pango_desc()
self._text_box.props.color = color.BUTTON_NORMAL.get_int()
self._round_box.append(self._text_box)
hippo.CanvasBox.__init__(self, **kwargs)
self.props.yalign = hippo.ALIGNMENT_CENTER
self.append(self._round_box)
if not self.props.color:
self.props.color = color.BUTTON_NORMAL.get_int()
if not self.props.color:
self.props.background_color = \
color.BUTTON_BACKGROUND_NORMAL.get_int()
self._normal_color = self.props.color
self._normal_background_color = self.props.background_color
self.connect('button-press-event',
self._button_button_press_event_cb)
def do_set_property(self, pspec, value):
if pspec.name == 'active':
self._active = value
if self._active:
self.props.color = self._normal_color
self.props.background_color = self._normal_background_color
else:
self.props.color = color.BUTTON_INACTIVE.get_int()
self.props.background_color = \
color.BUTTON_BACKGROUND_INACTIVE.get_int()
elif pspec.name == 'icon-name':
if value:
if self._icon:
self._icon.props.icon_name = value
else:
self._icon = CanvasIcon(icon_name=value,
scale=units.SMALL_ICON_SCALE,
fill_color=color.BLACK,
stroke_color=color.WHITE)
# Insert icon on the label's left
self._round_box.remove_all()
self._round_box.append(self._icon)
self._round_box.append(self._text_box)
else:
if self._icon:
self._round_box.remove(self._icon)
self._icon = None
elif pspec.name == 'text':
self._text_box.props.text = value
else:
hippo.CanvasBox.do_set_property(self, pspec, value)
def do_get_property(self, pspec):
if pspec.name == 'active':
return self._active
elif pspec.name == 'icon-name':
if self._icon:
return self._icon.props.icon_name
else:
return None
elif pspec.name == 'text':
return self._text_box.props.text
else:
return hippo.CanvasBox.do_get_property(self, pspec)
def _button_button_press_event_cb(self, widget, event):
if self._active:
self.emit_activated()
return True
def prelight(self, enter):
if enter:
if self._active:
self.props.background_color = color.BLACK.get_int()
else:
if self._active:
self.props.background_color = self._normal_background_color
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