# Copyright 2008 by Peter Moxhay and Wade Brainerd.  
# This file is part of Math.
#
# Math 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.
# 
# Math 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 Math.  If not, see <http://www.gnu.org/licenses/>.
from objectarea import Object
from vector import Vector

import gtk

class InstructionsObject(Object):
    """Text object displaying current instructions."""

    def __init__(self, pos, text):
        Object.__init__(self)
        
        self.pos = pos
        self.text = text
        
        self.draggable = False
        self.selectable = False
        
    def draw(self, cr):
        cr.set_source_rgb(0, 0, 0)
        
        cr.set_font_size(50)
        x_bearing, y_bearing, width, height = cr.text_extents(self.text)[:4]
        
        cr.move_to(self.pos.x - x_bearing, self.pos.y - y_bearing)
        cr.show_text(self.text)