diff options
Diffstat (limited to 'fontcombobox.py')
| -rw-r--r-- | fontcombobox.py | 309 |
1 files changed, 309 insertions, 0 deletions
diff --git a/fontcombobox.py b/fontcombobox.py new file mode 100644 index 0000000..747dc9a --- /dev/null +++ b/fontcombobox.py @@ -0,0 +1,309 @@ +# Copyright (C) 2012 Gonzalo Odiard <gonzalo@laptop.org> +# Based in code form Flavio Danesse <fdanesse@activitycentral.com> +# and Ariel Calzada <ariel.calzada@gmail.com> +# +# 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 +from gettext import gettext as _ + +from gi.repository import Gtk +from gi.repository import GObject +from gi.repository import Gio + +from sugar3.graphics.icon import Icon +from sugar3.graphics.palette import Palette, ToolInvoker +from sugar3.graphics.palettemenu import PaletteMenuBox +from sugar3.graphics.palettemenu import PaletteMenuItem +from sugar3.graphics import style +from sugar3 import env + +DEFAULT_FONTS = ['Sans', 'Serif', 'Monospace'] +USER_FONTS_FILE_PATH = env.get_profile_path('fonts') +GLOBAL_FONTS_FILE_PATH = '/etc/sugar_fonts' + + +class FontLabel(Gtk.Label): + + def __init__(self, default_font='Sans'): + Gtk.Label.__init__(self) + self._font = None + self.set_font(default_font) + + def set_font(self, font): + if self._font != font: + self.set_markup('<span font="%s">%s</span>' % (font, font)) + + +class FontComboBox(Gtk.ToolItem): + + __gsignals__ = { + 'changed': (GObject.SignalFlags.RUN_LAST, None, ([])), } + + def __init__(self): + self._palette_invoker = ToolInvoker() + Gtk.ToolItem.__init__(self) + self._font_label = FontLabel() + bt = Gtk.Button('') + bt.set_can_focus(False) + bt.remove(bt.get_children()[0]) + box = Gtk.HBox() + bt.add(box) + icon = Icon(icon_name='font-text') + box.pack_start(icon, False, False, 10) + box.pack_start(self._font_label, False, False, 10) + self.add(bt) + self.show_all() + + self._font_name = 'Sans' + + # theme the button, can be removed if add the style to the sugar css + if style.zoom(100) == 100: + subcell_size = 15 + else: + subcell_size = 11 + radius = 2 * subcell_size + theme = "GtkButton {border-radius: %dpx;}" % radius + css_provider = Gtk.CssProvider() + css_provider.load_from_data(theme) + style_context = bt.get_style_context() + style_context.add_provider(css_provider, + Gtk.STYLE_PROVIDER_PRIORITY_USER) + + # init palette + self._hide_tooltip_on_click = True + self._palette_invoker.attach_tool(self) + self._palette_invoker.props.toggle_palette = True + + self.palette = Palette(_('Select font')) + self.palette.set_invoker(self._palette_invoker) + + # load the fonts in the palette menu + self._menu_box = PaletteMenuBox() + self.props.palette.set_content(self._menu_box) + self._menu_box.show() + + context = self.get_pango_context() + + self._init_font_list() + + tmp_list = [] + for family in context.list_families(): + name = family.get_name() + if name in self._font_white_list: + tmp_list.append(name) + for name in sorted(tmp_list): + self._add_menu(name, self.__font_selected_cb) + + self._font_label.set_font(self._font_name) + + def _init_font_list(self): + 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()) + # update the menu + for child in self._menu_box.get_children(): + self._menu_box.remove(child) + child = None + context = self.get_pango_context() + tmp_list = [] + for family in context.list_families(): + name = family.get_name() + if name in self._font_white_list: + tmp_list.append(name) + for name in sorted(tmp_list): + self._add_menu(name, self.__font_selected_cb) + return False + + def __font_selected_cb(self, menu, font_name): + self._font_name = font_name + self._font_label.set_font(font_name) + self.emit('changed') + + def _add_menu(self, font_name, activate_cb): + label = '<span font="%s">%s</span>' % (font_name, font_name) + menu_item = PaletteMenuItem() + menu_item.set_label(label) + menu_item.connect('activate', activate_cb, font_name) + self._menu_box.append_item(menu_item) + menu_item.show() + + def __destroy_cb(self, icon): + if self._palette_invoker is not None: + self._palette_invoker.detach() + + def create_palette(self): + return None + + def get_palette(self): + return self._palette_invoker.palette + + def set_palette(self, palette): + self._palette_invoker.palette = palette + + palette = GObject.property( + type=object, setter=set_palette, getter=get_palette) + + def get_palette_invoker(self): + return self._palette_invoker + + def set_palette_invoker(self, palette_invoker): + self._palette_invoker.detach() + self._palette_invoker = palette_invoker + + palette_invoker = GObject.property( + type=object, setter=set_palette_invoker, getter=get_palette_invoker) + + def set_font_name(self, font_name): + self._font_label.set_font(font_name) + + def get_font_name(self): + return self._font_name + + +class FontSize(Gtk.ToolItem): + + __gsignals__ = { + 'changed': (GObject.SignalFlags.RUN_LAST, None, ([])), } + + def __init__(self): + + Gtk.ToolItem.__init__(self) + + self._font_sizes = [8, 9, 10, 11, 12, 14, 16, 20, 22, 24, 26, 28, 36, + 48, 72] + + # theme the buttons, can be removed if add the style to the sugar css + # these are the same values used in gtk-widgets.css.em + if style.zoom(100) == 100: + subcell_size = 15 + default_padding = 6 + else: + subcell_size = 11 + default_padding = 4 + + hbox = Gtk.HBox() + vbox = Gtk.VBox() + self.add(vbox) + # add a vbox to set the padding up and down + vbox.pack_start(hbox, True, True, default_padding) + self._size_down = Gtk.Button() + self._size_down.set_can_focus(False) + icon = Icon(icon_name='resize-') + self._size_down.set_image(icon) + self._size_down.connect('clicked', self.__font_sizes_cb, False) + hbox.pack_start(self._size_down, False, False, 5) + + # TODO: default? + self._default_size = 12 + self._font_size = self._default_size + + self._size_label = Gtk.Label(str(self._font_size)) + hbox.pack_start(self._size_label, False, False, 10) + + self._size_up = Gtk.Button() + self._size_up.set_can_focus(False) + icon = Icon(icon_name='resize+') + self._size_up.set_image(icon) + self._size_up.connect('clicked', self.__font_sizes_cb, True) + hbox.pack_start(self._size_up, False, False, 5) + + radius = 2 * subcell_size + theme_up = "GtkButton {border-radius:0px %dpx %dpx 0px;}" % (radius, + radius) + css_provider_up = Gtk.CssProvider() + css_provider_up.load_from_data(theme_up) + + style_context = self._size_up.get_style_context() + style_context.add_provider(css_provider_up, + Gtk.STYLE_PROVIDER_PRIORITY_USER) + + theme_down = "GtkButton {border-radius: %dpx 0px 0px %dpx;}" % (radius, + radius) + css_provider_down = Gtk.CssProvider() + css_provider_down.load_from_data(theme_down) + style_context = self._size_down.get_style_context() + style_context.add_provider(css_provider_down, + Gtk.STYLE_PROVIDER_PRIORITY_USER) + + self.show_all() + + def __font_sizes_cb(self, button, increase): + if self._font_size in self._font_sizes: + i = self._font_sizes.index(self._font_size) + if increase: + if i < len(self._font_sizes) - 1: + i += 1 + else: + if i > 0: + i -= 1 + else: + i = self._font_sizes.index(self._default_size) + + self._font_size = self._font_sizes[i] + self._size_label.set_text(str(self._font_size)) + self._size_down.set_sensitive(i != 0) + self._size_up.set_sensitive(i < len(self._font_sizes) - 1) + self.emit('changed') + + def set_font_size(self, size): + if size not in self._font_sizes: + # assure the font assigned is in the range + # if not, assign one close. + for font_size in self._font_sizes: + if font_size > size: + size = font_size + break + if size > self._font_sizes[-1]: + size = self._font_sizes[-1] + + self._font_size = size + self._size_label.set_text(str(self._font_size)) + + # update the buttons states + i = self._font_sizes.index(self._font_size) + self._size_down.set_sensitive(i != 0) + self._size_up.set_sensitive(i < len(self._font_sizes) - 1) + self.emit('changed') + + def get_font_size(self): + return self._font_size |