#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2012 S. Daniel Francis <francis@sugarlabs.org>
#
# 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 3 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 cairo
import rsvg

CLEF_C3 = 0
CLEF_C4 = 1
CLEF_F = 2
CLEF_G = 3


class Clef:
    clef_type = CLEF_G
    clefs = [None, None, rsvg.Handle(file=os.path.join(
                    os.environ['SUGAR_BUNDLE_PATH'], 'symbols/Fclef.svg')),
                rsvg.Handle(file=os.path.join(os.environ['SUGAR_BUNDLE_PATH'],
                                                        'symbols/Gclef.svg'))]

    def __init__(self):
        pass

    def draw(self, context, xcorner, ytop, width, height):
        svg = self.clefs[self.clef_type]
        matrix = cairo.Matrix(xx=width / svg.props.width,
                              yy=height / svg.props.height,
                              x0=xcorner,
                              y0=ytop)
        context.transform(matrix)
        svg.render_cairo(context)