/
widgets.py
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/
widgets.py
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# 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import os
import dbus
import time
from gettext import gettext as _
import logging
from sugar.graphics.radiotoolbutton import RadioToolButton
from sugar.graphics.combobox import ComboBox
from sugar.graphics.palette import Palette
from sugar.graphics.toolbutton import ToolButton
from sugar.graphics.menuitem import MenuItem
from sugar.datastore import datastore
logger = logging.getLogger('write-activity')
class FontCombo(ComboBox):
def __init__(self, abi):
ComboBox.__init__(self)
self._has_custom_fonts = False
self._fonts = sorted(abi.get_font_names())
self._fonts_changed_id = self.connect('changed', self._font_changed_cb,
abi)
for i, f in enumerate(self._fonts):
self.append_item(i, f, None)
if f == 'Times New Roman':
self.set_active(i)
self._abi_handler = abi.connect('font-family', self._font_family_cb)
def _font_changed_cb(self, combobox, abi):
if self.get_active() != -1:
logger.debug('Setting font: %s', self._fonts[self.get_active()])
try:
abi.handler_block(self._abi_handler)
abi.set_font_name(self._fonts[self.get_active()])
finally:
abi.handler_unblock(self._abi_handler)
def _font_family_cb(self, abi, font_family):
font_index = -1
# search for the font name in our font list
for i, f in enumerate(self._fonts):
if f == font_family:
font_index = i
break
# if we don't know this font yet, then add it (temporary) to the list
if font_index == -1:
logger.debug('Font not found in font list: %s', font_family)
if not self._has_custom_fonts:
# add a separator to seperate the non-available fonts from
# the available ones
self._fonts.append('') # ugly
self.append_separator()
self._has_custom_fonts = True
# add the new font
self._fonts.append(font_family)
self.append_item(0, font_family, None)
# see how many fonts we have now, so we can select the last one
model = self.get_model()
num_children = model.iter_n_children(None)
logger.debug('Number of fonts in the list: %d', num_children)
font_index = num_children-1
# activate the found font
if (font_index > -1):
self.handler_block(self._fonts_changed_id)
self.set_active(font_index)
self.handler_unblock(self._fonts_changed_id)
class FontSizeCombo(ComboBox):
def __init__(self, abi):
ComboBox.__init__(self)
self._abi_handler = abi.connect('font-size', self._font_size_cb)
self._font_sizes = ['8', '9', '10', '11', '12', '14', '16', '20', \
'22', '24', '26', '28', '36', '48', '72']
self._changed_id = self.connect('changed', self._font_size_changed_cb,
abi)
for i, s in enumerate(self._font_sizes):
self.append_item(i, s, None)
if s == '12':
self.set_active(i)
def _font_size_changed_cb(self, combobox, abi):
if self.get_active() != -1:
logger.debug('Setting font size: %d',
int(self._font_sizes[self.get_active()]))
abi.handler_block(self._abi_handler)
try:
abi.set_font_size(self._font_sizes[self.get_active()])
finally:
abi.handler_unblock(self._abi_handler)
def _font_size_cb(self, abi, size):
for i, s in enumerate(self._font_sizes):
if int(s) == int(size):
self.handler_block(self._changed_id)
self.set_active(i)
self.handler_unblock(self._changed_id)
break
class AbiButton(RadioToolButton):
def __init__(self, abi, abi_signal, do_abi_cb, on_abi_cb=None, **kwargs):
RadioToolButton.__init__(self, **kwargs)
self._abi_handler = abi.connect(abi_signal, self.__abi_cb,
abi_signal, on_abi_cb)
self._toggled_handler = self.connect('toggled', self.__toggled_cb,
abi, do_abi_cb)
def __toggled_cb(self, button, abi, do_abi_cb):
if not button.props.active:
return
abi.handler_block(self._abi_handler)
try:
logging.debug('Do abi %s' % do_abi_cb)
do_abi_cb()
finally:
abi.handler_unblock(self._abi_handler)
def __abi_cb(self, abi, prop, abi_signal, on_abi_cb):
if (on_abi_cb is None and not prop) or \
(on_abi_cb is not None and not on_abi_cb(abi, prop)):
return
self.handler_block(self._toggled_handler)
try:
logging.debug('On abi %s prop=%r' % (abi_signal, prop))
self.set_active(True)
finally:
self.handler_unblock(self._toggled_handler)
class ExportButton(ToolButton):
_EXPORT_FORMATS = [{'mime_type' : 'application/rtf',
'title' : _('Rich Text (RTF)'),
'jpostfix' : _('RTF'),
'exp_props' : ''},
{'mime_type' : 'text/html',
'title' : _('Hypertext (HTML)'),
'jpostfix' : _('HTML'),
'exp_props' : 'html4:yes; declare-xml:no; ' \
'embed-css:yes; embed-images:yes;'},
{'mime_type' : 'text/plain',
'title' : _('Plain Text (TXT)'),
'jpostfix' : _('TXT'),
'exp_props' : ''}]
def __init__(self, activity, abi):
ToolButton.__init__(self, 'document-save')
self.props.tooltip = _('Export')
self.props.label = _('Export')
for i in self._EXPORT_FORMATS:
menu_item = MenuItem(i['title'])
menu_item.connect('activate', self.__activate_cb, activity, abi, i)
self.props.palette.menu.append(menu_item)
menu_item.show()
def do_clicked(self):
if self.props.palette.is_up():
self.props.palette.popdown(immediate=True)
else:
self.props.palette.popup(immediate=True, state=Palette.SECONDARY)
def __activate_cb(self, menu_item, activity, abi, format):
logger.debug('exporting file: %r' % format)
exp_props = format['exp_props']
# special case HTML export to set the activity name as the HTML title
if format['mime_type'] == "text/html":
exp_props += " title:" + activity.metadata['title'] + ';'
# create a new journal item
fileObject = datastore.create()
act_meta = activity.metadata
fileObject.metadata['title'] = \
act_meta['title'] + ' (' + format['jpostfix'] + ')'
fileObject.metadata['title_set_by_user'] = act_meta['title_set_by_user']
fileObject.metadata['mime_type'] = format['mime_type']
fileObject.metadata['fulltext'] = abi.get_content(
extension_or_mimetype=".txt")[:3000]
fileObject.metadata['icon-color'] = act_meta['icon-color']
fileObject.metadata['activity'] = act_meta['activity']
fileObject.metadata['keep'] = act_meta['keep']
preview = activity.get_preview()
if preview is not None:
fileObject.metadata['preview'] = dbus.ByteArray(preview)
fileObject.metadata['share-scope'] = act_meta['share-scope']
# write out the document contents in the requested format
fileObject.file_path = os.path.join(activity.get_activity_root(),
'instance', '%i' % time.time())
abi.save('file://' + fileObject.file_path,
format['mime_type'], exp_props)
# store the journal item
datastore.write(fileObject, transfer_ownership=True)
fileObject.destroy()
del fileObject