文件操作 - icon.py

文件: /usr/share/ibus/setup/icon.py

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# 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

文件操作 - icon.py

文件: /usr/share/ibus/setup/icon.py

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