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-# Speak.activity
-# A simple front end to the espeak text-to-speech engine on the XO laptop
-# http://wiki.laptop.org/go/Speak
-#
-# Copyright (C) 2008 Joshua Minor
-# This file is part of Speak.activity
-#
-# Parts of Speak.activity are based on code from Measure.activity
-# Copyright (C) 2007 Arjun Sarwal - arjun@laptop.org
-#
-# Speak.activity 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.
-#
-# Speak.activity 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 Speak.activity. If not, see <http://www.gnu.org/licenses/>.
-
-from eye import *
-
-
-class Glasses(Eye):
- def __init__(self, fill_color):
- Eye.__init__(self, fill_color)
-
- def do_draw(self, context):
- bounds = self.get_allocation()
-
- eyeSize = min(bounds.width, bounds.height)
- outlineWidth = eyeSize / 20.0
- pupilSize = eyeSize / 10.0
- pupilX, pupilY = self.computePupil()
- dX = pupilX - bounds.width / 2.
- dY = pupilY - bounds.height / 2.
- distance = math.sqrt(dX * dX + dY * dY)
- limit = eyeSize / 2 - outlineWidth * 2 - pupilSize
- if distance > limit:
- pupilX = bounds.width / 2 + dX * limit / distance
- pupilY = bounds.height / 2 + dY * limit / distance
-
- self.context = context
- #self.context.set_antialias(cairo.ANTIALIAS_NONE)
-
- #set a clip region for the expose event.
- # This reduces redrawing work (and time)
- self.context.rectangle(bounds.x,
- bounds.y,
- bounds.width,
- bounds.height)
- self.context.clip()
-
- # background
- self.context.set_source_rgba(*self.fill_color.get_rgba())
- self.context.rectangle(0, 0, bounds.width, bounds.height)
- self.context.fill()
-
- def roundrect(x1, y1, x2, y2):
- self.context.move_to(x1, (y1 + y2) / 2.)
- self.context.curve_to(x1, y1, x1, y1, (x1 + x2) / 2., y1)
- self.context.curve_to(x2, y1, x2, y1, x2, (y1 + y2) / 2.)
- self.context.curve_to(x2, y2, x2, y2, (x1 + x2) / 2., y2)
- self.context.curve_to(x1, y2, x1, y2, x1, (y1 + y2) / 2.)
-
- # eye ball
- roundrect(outlineWidth,
- outlineWidth,
- bounds.width - outlineWidth,
- bounds.height - outlineWidth)
- self.context.set_source_rgb(1, 1, 1)
- self.context.fill()
-
- # outline
- self.context.set_line_width(outlineWidth)
- roundrect(outlineWidth,
- outlineWidth,
- bounds.width - outlineWidth,
- bounds.height - outlineWidth)
- #roundrect(0,0, bounds.width,bounds.height)
- self.context.set_source_rgb(0, 0, 0)
- self.context.stroke()
-
- # pupil
- self.context.arc(pupilX, pupilY, pupilSize, 0, 360)
- self.context.set_source_rgb(0, 0, 0)
- self.context.fill()
-
- return True