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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 gtk
from sugar import _sugarext
from sugar.graphics import style
from sugar.graphics.icon import _SVGLoader
ICON_ENTRY_PRIMARY = _sugarext.ICON_ENTRY_PRIMARY
ICON_ENTRY_SECONDARY = _sugarext.ICON_ENTRY_SECONDARY
class IconEntry(_sugarext.IconEntry):
def __init__(self):
_sugarext.IconEntry.__init__(self)
self._clear_icon = None
self._clear_shown = False
self.connect('key_press_event', self._keypress_event_cb)
def set_icon_from_name(self, position, name):
icon_theme = gtk.icon_theme_get_default()
icon_info = icon_theme.lookup_icon(name,
gtk.ICON_SIZE_SMALL_TOOLBAR,
0)
if icon_info.get_filename().endswith('.svg'):
loader = _SVGLoader()
entities = {'fill_color': style.COLOR_TOOLBAR_GREY.get_svg(),
'stroke_color': style.COLOR_TOOLBAR_GREY.get_svg()}
handle = loader.load(icon_info.get_filename(), entities, None)
pixbuf = handle.get_pixbuf()
else:
pixbuf = gtk.gdk.pixbuf_new_from_file(icon_info.get_filename())
del icon_info
image = gtk.Image()
image.set_from_pixbuf(pixbuf)
image.show()
self.set_icon(position, image)
def set_icon(self, position, image):
if image.get_storage_type() not in [gtk.IMAGE_PIXBUF, gtk.IMAGE_STOCK]:
raise ValueError('Image must have a storage type of pixbuf or ' +
'stock, not %r.' % image.get_storage_type())
_sugarext.IconEntry.set_icon(self, position, image)
def remove_icon(self, position):
_sugarext.IconEntry.set_icon(self, position, None)
def add_clear_button(self):
if self.props.text != "":
self.show_clear_button()
else:
self.hide_clear_button()
self.connect('icon-pressed', self._icon_pressed_cb)
self.connect('changed', self._changed_cb)
def show_clear_button(self):
if not self._clear_shown:
self.set_icon_from_name(ICON_ENTRY_SECONDARY,
'dialog-cancel')
self._clear_shown = True
def hide_clear_button(self):
if self._clear_shown:
self.remove_icon(ICON_ENTRY_SECONDARY)
self._clear_shown = False
def _keypress_event_cb(self, widget, event):
keyval = gtk.gdk.keyval_name(event.keyval)
if keyval == 'Escape':
self.props.text = ''
return True
return False
def _icon_pressed_cb(self, entru, icon_pos, button):
if icon_pos == ICON_ENTRY_SECONDARY:
self.set_text('')
self.hide_clear_button()
def _changed_cb(self, icon_entry):
if not self.props.text:
self.hide_clear_button()
else:
self.show_clear_button()
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