From 6e82c5964e31f3cc937911069709af9830071338 Mon Sep 17 00:00:00 2001
From: Aleksey Lim <alsroot@member.fsf.org>
Date: Fri, 25 Dec 2009 15:34:56 +0000
Subject: Use only one directory level for sources

---
(limited to 'mouth.py')

diff --git a/mouth.py b/mouth.py
new file mode 100644
index 0000000..b01155a
--- /dev/null
+++ b/mouth.py
@@ -0,0 +1,101 @@
+# 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/>.
+
+# This code is a super-stripped down version of the waveform view from Measure
+
+import gtk
+import cairo
+from struct import unpack
+import numpy.core
+
+class Mouth(gtk.DrawingArea):
+    def __init__(self, audioSource, fill_color):
+
+        gtk.DrawingArea.__init__(self)
+        self.connect("expose_event",self.expose)
+        self.buffers = []
+        self.buffer_size = 256
+        self.main_buffers = []
+        self.newest_buffer = []
+        self.fill_color = fill_color
+
+        audioSource.connect("new-buffer", self._new_buffer)
+
+    def _new_buffer(self, obj, buf):
+        if len(buf) < 28:
+            self.newest_buffer = []
+        else:
+            self.newest_buffer = list(unpack( str(int(len(buf))/2)+'h' , buf))
+            self.main_buffers += self.newest_buffer
+            if(len(self.main_buffers)>self.buffer_size):
+                del self.main_buffers[0:(len(self.main_buffers)- \
+                        self.buffer_size)]
+
+        self.queue_draw()
+        return True
+
+    def processBuffer(self, bounds):
+        if len(self.main_buffers) == 0 or len(self.newest_buffer) == 0:
+            self.volume = 0
+        else:
+            self.volume = numpy.core.max(self.main_buffers)# - numpy.core.min(self.main_buffers)
+
+    def expose(self, widget, event):
+        """This function is the "expose" event handler and does all the drawing."""
+        bounds = self.get_allocation()
+
+        self.processBuffer(bounds)
+
+        #Create context, disable antialiasing
+        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()
+
+        # Draw the mouth
+        volume = self.volume / 65535.
+        mouthH = volume * bounds.height
+        mouthW = volume**2 * (bounds.width/2.) + bounds.width/2.
+        #        T
+        #  L          R
+        #        B
+        Lx,Ly = bounds.width/2 - mouthW/2, bounds.height/2
+        Tx,Ty = bounds.width/2,            bounds.height/2 - mouthH/2
+        Rx,Ry = bounds.width/2 + mouthW/2, bounds.height/2
+        Bx,By = bounds.width/2,            bounds.height/2 + mouthH/2
+        self.context.set_line_width(min(bounds.height/10.0, 10))
+        self.context.move_to(Lx,Ly)
+        self.context.curve_to(Tx,Ty, Tx,Ty, Rx,Ry)
+        self.context.curve_to(Bx,By, Bx,By, Lx,Ly)
+        self.context.set_source_rgb(0,0,0)
+        self.context.close_path()
+        self.context.stroke()
+
+        return True
--
cgit v0.9.1