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# Copyright (C) 2013 One Laptop per Child
#
# 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 shutil
import logging
from gettext import gettext as _
from gi.repository import GLib
from gi.repository import GConf
from gi.repository import Gtk
from gi.repository import Gdk
from gi.repository import Gio
from gi.repository import Pango
from sugar3 import util
from sugar3 import env
from sugar3.graphics import style
from sugar3.graphics.icon import Icon, CellRendererIcon
from sugar3.graphics.xocolor import XoColor
from sugar3.activity import activity
from sugar3.graphics.toolbarbox import ToolbarBox
from sugar3.activity.widgets import ActivityButton
from sugar3.activity.widgets import TitleEntry
from sugar3.activity.widgets import StopButton
from sugar3.activity.widgets import ShareButton
from sugar3.activity.widgets import DescriptionItem
DEFAULT_FONTS = ['Sans', 'Serif', 'Monospace']
USER_FONTS_FILE_PATH = env.get_profile_path('fonts')
GLOBAL_FONTS_FILE_PATH = '/etc/sugar_fonts'
class FontsActivity(activity.Activity):
def __init__(self, handle):
"""Set up the HelloWorld activity."""
activity.Activity.__init__(self, handle)
self.max_participants = 1
toolbar_box = ToolbarBox()
activity_button = ActivityButton(self)
toolbar_box.toolbar.insert(activity_button, 0)
activity_button.show()
title_entry = TitleEntry(self)
toolbar_box.toolbar.insert(title_entry, -1)
title_entry.show()
description_item = DescriptionItem(self)
toolbar_box.toolbar.insert(description_item, -1)
description_item.show()
share_button = ShareButton(self)
toolbar_box.toolbar.insert(share_button, -1)
share_button.show()
separator = Gtk.SeparatorToolItem()
separator.props.draw = False
separator.set_expand(True)
toolbar_box.toolbar.insert(separator, -1)
separator.show()
stop_button = StopButton(self)
toolbar_box.toolbar.insert(stop_button, -1)
stop_button.show()
self.set_toolbar_box(toolbar_box)
toolbar_box.show()
self.init_fonts()
font_list = FontsList(self._all_fonts, self._font_white_list)
self.set_canvas(font_list)
self.show_all()
def init_fonts(self):
# load the data in the model
self._all_fonts = []
context = self.get_pango_context()
for family in context.list_families():
name = family.get_name()
self._all_fonts.append(name)
# copied from fontcombobox
self._font_white_list = []
self._font_white_list.extend(DEFAULT_FONTS)
# check if there are a user configuration file
if not os.path.exists(USER_FONTS_FILE_PATH):
# verify if exists a file in /etc
if os.path.exists(GLOBAL_FONTS_FILE_PATH):
shutil.copy(GLOBAL_FONTS_FILE_PATH, USER_FONTS_FILE_PATH)
if os.path.exists(USER_FONTS_FILE_PATH):
# get the font names in the file to the white list
fonts_file = open(USER_FONTS_FILE_PATH)
# get the font names in the file to the white list
for line in fonts_file:
self._font_white_list.append(line.strip())
# monitor changes in the file
gio_fonts_file = Gio.File.new_for_path(USER_FONTS_FILE_PATH)
self.monitor = gio_fonts_file.monitor_file(
Gio.FileMonitorFlags.NONE, None)
self.monitor.set_rate_limit(5000)
self.monitor.connect('changed', self._reload_fonts)
def _reload_fonts(self, monitor, gio_file, other_file, event):
if event != Gio.FileMonitorEvent.CHANGES_DONE_HINT:
return
self._font_white_list = []
self._font_white_list.extend(DEFAULT_FONTS)
fonts_file = open(USER_FONTS_FILE_PATH)
for line in fonts_file:
self._font_white_list.append(line.strip())
class FontsTreeView(Gtk.TreeView):
__gtype_name__ = 'SugarActivitiesTreeView'
def __init__(self, all_fonts, favorites):
Gtk.TreeView.__init__(self)
self._query = ''
client = GConf.Client.get_default()
self.xo_color = XoColor(client.get_string('/desktop/sugar/user/color'))
self.set_headers_visible(False)
self.add_events(Gdk.EventMask.BUTTON_PRESS_MASK |
Gdk.EventMask.TOUCH_MASK |
Gdk.EventMask.BUTTON_RELEASE_MASK)
selection = self.get_selection()
selection.set_mode(Gtk.SelectionMode.NONE)
model = ListModel(all_fonts, favorites)
model.set_visible_func(self.__model_visible_cb)
self.set_model(model)
cell_favorite = CellRendererFavorite(self)
cell_favorite.connect('clicked', self.__favorite_clicked_cb)
column = Gtk.TreeViewColumn()
column.pack_start(cell_favorite, True)
column.set_cell_data_func(cell_favorite, self.__favorite_set_data_cb)
self.append_column(column)
cell_text = Gtk.CellRendererText()
cell_text.props.ellipsize = Pango.EllipsizeMode.MIDDLE
cell_text.props.ellipsize_set = False
column = Gtk.TreeViewColumn()
column.props.sizing = Gtk.TreeViewColumnSizing.GROW_ONLY
column.props.expand = False
column.set_sort_column_id(ListModel.COLUMN_FONT_NAME)
column.pack_start(cell_text, True)
column.add_attribute(cell_text, 'text', ListModel.COLUMN_FONT_NAME)
column.add_attribute(cell_text, 'font', ListModel.COLUMN_FONT_NAME)
column.add_attribute(cell_text, 'scale', ListModel.COLUMN_SCALE)
column.add_attribute(cell_text, 'scale-set',
ListModel.COLUMN_SCALE_SET)
self.append_column(column)
cell_text = Gtk.CellRendererText()
cell_text.props.ellipsize = Pango.EllipsizeMode.MIDDLE
cell_text.props.ellipsize_set = True
column = Gtk.TreeViewColumn()
column.set_alignment(1)
column.props.sizing = Gtk.TreeViewColumnSizing.GROW_ONLY
column.props.resizable = True
column.props.reorderable = True
column.props.expand = True
column.set_sort_column_id(ListModel.COLUMN_TEST)
column.pack_start(cell_text, True)
column.add_attribute(cell_text, 'text', ListModel.COLUMN_TEST)
column.add_attribute(cell_text, 'font', ListModel.COLUMN_FONT_NAME)
column.add_attribute(cell_text, 'scale', ListModel.COLUMN_SCALE)
column.add_attribute(cell_text, 'scale-set',
ListModel.COLUMN_SCALE_SET)
self.append_column(column)
self.set_search_column(ListModel.COLUMN_FONT_NAME)
self.set_enable_search(False)
def __favorite_set_data_cb(self, column, cell, model, tree_iter, data):
favorite = model[tree_iter][ListModel.COLUMN_FAVORITE]
if favorite:
cell.props.xo_color = self.xo_color
else:
cell.props.xo_color = None
def __favorite_clicked_cb(self, cell, path):
row = self.get_model()[path]
# TODO
def set_filter(self, query):
"""Set a new query and refilter the model, return the number
of matching activities.
"""
self._query = query.decode('utf-8')
self.get_model().refilter()
matches = self.get_model().iter_n_children(None)
return matches
def __model_visible_cb(self, model, tree_iter, data):
title = model[tree_iter][ListModel.COLUMN_FONT_NAME]
return title is not None and title.find(self._query) > -1
class ListModel(Gtk.TreeModelSort):
__gtype_name__ = 'SugarListModel'
COLUMN_FAVORITE = 0
COLUMN_FONT_NAME = 1
COLUMN_TEST = 2
COLUMN_SCALE = 3
COLUMN_SCALE_SET = 4
def __init__(self, all_fonts, favorites):
self._model = Gtk.ListStore(bool, str, str, int, bool)
self._model_filter = self._model.filter_new()
Gtk.TreeModelSort.__init__(self, model=self._model_filter)
self.set_sort_column_id(ListModel.COLUMN_FONT_NAME,
Gtk.SortType.ASCENDING)
# load th model
self._all_fonts = all_fonts
self._favorites = favorites
for font_name in self._all_fonts:
favorite = font_name in self._favorites
self._model.append([
favorite, font_name,
_('The quick brown fox jumps over the lazy dog.'), 2, True])
def set_visible_func(self, func):
self._model_filter.set_visible_func(func)
def refilter(self):
self._model_filter.refilter()
class CellRendererFavorite(CellRendererIcon):
__gtype_name__ = 'SugarCellRendererFavorite'
def __init__(self, tree_view):
CellRendererIcon.__init__(self, tree_view)
self.props.width = style.GRID_CELL_SIZE
self.props.height = style.GRID_CELL_SIZE
self.props.size = style.SMALL_ICON_SIZE
self.props.icon_name = 'emblem-favorite'
self.props.mode = Gtk.CellRendererMode.ACTIVATABLE
prelit_color = tree_view.xo_color
self.props.prelit_stroke_color = prelit_color.get_stroke_color()
self.props.prelit_fill_color = prelit_color.get_fill_color()
class FontsList(Gtk.VBox):
__gtype_name__ = 'SugarActivitiesList'
def __init__(self, all_fonts, favorites):
logging.debug('STARTUP: Loading the activities list')
Gtk.VBox.__init__(self)
self._scrolled_window = Gtk.ScrolledWindow()
self._scrolled_window.set_policy(Gtk.PolicyType.NEVER,
Gtk.PolicyType.AUTOMATIC)
self._scrolled_window.set_shadow_type(Gtk.ShadowType.NONE)
self._scrolled_window.connect('key-press-event',
self.__key_press_event_cb)
self.pack_start(self._scrolled_window, True, True, 0)
self._scrolled_window.show()
self._tree_view = FontsTreeView(all_fonts, favorites)
self._scrolled_window.add(self._tree_view)
self._tree_view.show()
def grab_focus(self):
# overwrite grab focus in order to grab focus from the parent
self._tree_view.grab_focus()
def set_filter(self, query):
matches = self._tree_view.set_filter(query)
if matches == 0:
self._show_clear_message()
else:
self._hide_clear_message()
def __key_press_event_cb(self, scrolled_window, event):
keyname = Gdk.keyval_name(event.keyval)
vadjustment = scrolled_window.props.vadjustment
if keyname == 'Up':
if vadjustment.props.value > vadjustment.props.lower:
vadjustment.props.value -= vadjustment.props.step_increment
elif keyname == 'Down':
max_value = vadjustment.props.upper - vadjustment.props.page_size
if vadjustment.props.value < max_value:
vadjustment.props.value = min(
vadjustment.props.value + vadjustment.props.step_increment,
max_value)
else:
return False
return True
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