# vim:set et sts=4 sw=4:

#

# ibus - The Input Bus

#

# Copyright (c) 2007-2010 Peng Huang <shawn.p.huang@gmail.com>

# Copyright (c) 2007-2010 Red Hat, Inc.

#

# 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 2.1 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301

# USA

__all__ = (

    "load_icon"

)

from gi.repository import Gdk

from gi.repository import GdkPixbuf

from gi.repository import Gtk

from os import path

icon_theme = Gtk.IconTheme.get_default()

dir = path.dirname(__file__)

icondir = path.join(dir, "..", "icons")

icon_theme.prepend_search_path(icondir)

icon_cache = {}

# load_icon:

# @icon_name_or_path: Can be a name or path but not stock id

#     because gtk_icon_theme_load_icon() cannot fallback the stock id to

#     a real file name against gtk_image_new_from_stock().

# @size: #GtkIconSize

def load_icon(icon_name_or_path, size):

    if (icon_name_or_path, size) in icon_cache:

        return icon_cache[(icon_name_or_path, size)]

    icon_size = Gtk.icon_size_lookup(size)

    if icon_size[0]:

        icon_size = icon_size[1]

    pixbuf = None

    try:

        pixbuf = GdkPixbuf.Pixbuf.new_from_file(icon_name_or_path)

        w, h = pixbuf.get_width(), pixbuf.get_height()

        rate = max(w, h) / float(icon_size)

        w = int(w / rate)

        h = int(h / rate)

        pixbuf = pixbuf.scale_simple(w, h, GdkPixbuf.InterpType.BILINEAR)

    except:

        # import traceback

        # traceback.print_exc()

        pass

    if pixbuf == None:

        try:

            theme = Gtk.IconTheme.get_default()

            pixbuf = theme.load_icon(icon_name_or_path, icon_size, 0)

        except:

            # import traceback

            # traceback.print_exc()

            pass

    if pixbuf == None:

        try:

            theme = Gtk.IconTheme.get_default()

            pixbuf = theme.load_icon('ibus-engine', icon_size, 0)

        except:

            # import traceback

            # traceback.print_exc()

            pass

    if pixbuf == None:

        try:

            theme = Gtk.IconTheme.get_default()

            pixbuf = theme.load_icon('image-missing', icon_size, 0)

        except:

            # import traceback

            # traceback.print_exc()

            pass

    icon_cache[(icon_name_or_path, size)] = pixbuf

    return pixbuf