From ca21feee3193e89105a17ec2307aa5eaab26a9a2 Mon Sep 17 00:00:00 2001
From: IvaDobreva <iva95dobreva@gmail.com>
Date: Sun, 13 Jan 2013 18:24:10 +0000
Subject: GObject

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

diff --git a/mouth.py~ b/mouth.py~
new file mode 100644
index 0000000..f101249
--- /dev/null
+++ b/mouth.py~
@@ -0,0 +1,102 @@
+# 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
+
+from gi.repository import Gtk
+import cairo
+from struct import unpack
+import numpy.core
+
+
+class Mouth(Gtk.DrawingArea):
+    def __init__(self, audioSource, fill_color):
+
+        GObject.GObject.__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 / 30000.
+        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
--
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