1 files changed, 81 insertions, 0 deletions
diff --git a/speak/glasses.py b/speak/glasses.py
new file mode 100644
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+++ b/speak/glasses.py
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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 expose(self, widget, event):
+        bounds = self.get_allocation()
+        
+        eyeSize = min(bounds.width, bounds.height)
+        outlineWidth = eyeSize/20.0
+        pupilSize = eyeSize/10.0
+        pupilX, pupilY = self.pupil_position()
+        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 = widget.window.cairo_create()
+        #self.context.set_antialias(cairo.ANTIALIAS_NONE)
+
+        #set a clip region for the expose event. This reduces redrawing work (and time)
+        self.context.rectangle(event.area.x, event.area.y, event.area.width, event.area.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