From 81c32d12cf7ef1619a518a97a93acc994cba031e Mon Sep 17 00:00:00 2001
From: Joshua Minor <j@lux.vu>
Date: Sat, 22 Dec 2007 00:23:11 +0000
Subject: Initial version of Speak.activity

---
(limited to 'Speak.activity/eye.py')

diff --git a/Speak.activity/eye.py b/Speak.activity/eye.py
new file mode 100644
index 0000000..824289c
--- /dev/null
+++ b/Speak.activity/eye.py
@@ -0,0 +1,80 @@
+#! /usr/bin/python
+
+import pygtk
+import gtk
+import gtk.gdk
+import gobject
+import cairo
+import math
+
+class Eye(gtk.DrawingArea):
+    def __init__(self):
+        gtk.DrawingArea.__init__(self)
+        self.connect("expose_event",self.expose)
+        self.frame = 0
+        # instead of listening for mouse move events we poll to see if the mouse has moved
+        # this is so we can react to the mouse even when it isn't directly over this widget
+        gobject.timeout_add(100, self._timeout_cb)
+        self.mousePosition = self.get_mouse()
+
+    def _timeout_cb(self):
+        # only redraw if the mouse has moved
+        newPosition = self.get_mouse()
+        if newPosition != self.mousePosition:
+            self.queue_draw()
+            self.mousePosition = newPosition
+        return True
+
+    def get_mouse(self):
+        display = gtk.gdk.display_get_default()
+        screen, mouseX, mouseY, modifiers = display.get_pointer()
+        return mouseX, mouseY
+
+    def expose(self, widget, event):
+        self.frame += 1
+        bounds = self.get_allocation()
+        
+        mouseX, mouseY = self.mousePosition
+        
+        eyeSize = min(bounds.width, bounds.height)
+        outlineWidth = eyeSize/20.0
+        pupilSize = eyeSize/10.0
+        pupilX = max(min(mouseX - bounds.x, bounds.width), 0)
+        pupilY = max(min(mouseY - bounds.y, bounds.height), 0)
+        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_rgb(.5,.5,.5)
+        self.context.rectangle(0,0,bounds.width,bounds.height)
+        self.context.fill()
+
+        # eye ball
+        self.context.arc(bounds.width/2,bounds.height/2, eyeSize/2-outlineWidth/2, 0,360)
+        self.context.set_source_rgb(1,1,1)
+        self.context.fill()
+
+        # outline
+        self.context.set_line_width(outlineWidth)
+        self.context.arc(bounds.width/2,bounds.height/2, eyeSize/2-outlineWidth/2, 0,360)
+        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
--
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