Initial version

6 files changed, 969 insertions, 0 deletions

diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..623b625
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,340 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+     51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
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+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
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+
+    c) Accompany it with the information you received as to the offer
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+    allowed only for noncommercial distribution and only if you
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+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
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+
+If distribution of executable or object code is made by offering
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+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program 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 2 of the License, or
+    (at your option) any later version.
+
+    This program 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 this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year  name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/activity.py b/activity.py
new file mode 100644
index 0000000..1aa7715
--- /dev/null
+++ b/activity.py
@@ -0,0 +1,119 @@
+# Copyright 2009 Simon Schampijer
+#
+# This program 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 2 of the License, or
+# (at your option) any later version.
+#
+# This program 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 this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+import gtk
+import logging
+
+from gettext import gettext as _
+
+from sugar.activity import activity
+from sugar.graphics.toolbarbox import ToolbarBox
+from sugar.activity.widgets import ActivityToolbarButton
+from sugar.activity.widgets import StopButton
+
+from draw_piano import PianoKeyboard
+import gst
+import math
+
+
+class SimplePianoActivity(activity.Activity):
+    """SimplePianoActivity class as specified in activity.info"""
+
+    def __init__(self, handle):
+        """Set up the HelloWorld activity."""
+        activity.Activity.__init__(self, handle)
+
+        # we do not have collaboration features
+        # make the share option insensitive
+        self.max_participants = 1
+
+        # toolbar with the new toolbar redesign
+        toolbar_box = ToolbarBox()
+
+        activity_button = ActivityToolbarButton(self)
+        toolbar_box.toolbar.insert(activity_button, 0)
+
+        separator = gtk.SeparatorToolItem()
+        separator.props.draw = False
+        separator.set_expand(True)
+        toolbar_box.toolbar.insert(separator, -1)
+
+        stop_button = StopButton(self)
+        toolbar_box.toolbar.insert(stop_button, -1)
+        stop_button.show()
+
+        self.set_toolbar_box(toolbar_box)
+        toolbar_box.show_all()
+
+        self.tone_generator = GstToneGenerator()
+
+        self.keyboard_letters = ['Q2W3ER5T6Y7UI', 'ZSXDCVGBHNJM', ',']
+
+        notes = ['DO', 'DO#', 'RE', 'RE#', 'MI', 'FA', 'FA#', 'SOL',
+                        'SOL#', 'LA', 'LA#', 'SI']
+        labels_tamtam = [notes, notes, ['DO']]
+
+        piano = PianoKeyboard(octaves=2, add_c=True,
+                labels=self.keyboard_letters)
+        piano.connect('key_pressed', self.__key_pressed_cb)
+        piano.connect('key_released', self.__key_released_cb)
+        piano.show()
+        self.set_canvas(piano)
+
+    def __key_pressed_cb(self, widget, octave_clicked, key_clicked, letter):
+        logging.debug('Pressed Octave: %d Key: %d Letter: %s' %
+            (octave_clicked, key_clicked, letter))
+
+        if key_clicked >= 9:
+            key = key_clicked - 9
+            octave = octave_clicked + 1
+        else:
+            key = key_clicked + 3
+            octave = octave_clicked
+        freq = 440 * math.pow(2.0, octave + (key - 12.0) / 12.0)
+        logging.debug('Vales Octave: %d Key: %d Freq: %s' % (octave, key,
+                freq))
+        self.tone_generator.set_values(freq, 100)
+        self.tone_generator.start()
+
+    def __key_released_cb(self, widget, octave_clicked, key_clicked, letter):
+        self.tone_generator.stop()
+
+
+class GstToneGenerator(object):
+    """Gstreamer based tone generator.
+        from https://github.com/iamFIREcracker/py-tone-generator/
+    """
+
+    def __init__(self):
+        str_pipe = '''audiotestsrc name=source !autoaudiosink'''
+        self.pipeline = gst.parse_launch(str_pipe)
+        self.source = self.pipeline.get_by_name('source')
+
+    def start(self):
+        self.pipeline.set_state(gst.STATE_PLAYING)
+
+    def stop(self):
+        self.pipeline.set_state(gst.STATE_NULL)
+
+    def set_values(self, freq, volume):
+        """Change the frequency and volume values of the sound source.
+        Keywords:
+        freq frequency value between 0 and 20k.
+        volume volume value between 0 and 1.
+        """
+        self.source.set_property('freq', max(0, min(freq, 20000)))
+        self.source.set_property('volume', max(0, min(volume, 1)))
diff --git a/activity/activity-simplepiano.svg b/activity/activity-simplepiano.svg
new file mode 100644
index 0000000..6e740d1
--- /dev/null
+++ b/activity/activity-simplepiano.svg
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.1"
+   width="55"
+   height="55"
+   viewBox="0 0 55 55"
+   id="svg3062"
+   xml:space="preserve"><metadata
+   id="metadata3079"><rdf:RDF><cc:Work
+       rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
+         rdf:resource="http://purl.org/dc/dcmitype/StillImage" /><dc:title></dc:title></cc:Work></rdf:RDF></metadata><defs
+   id="defs3077" />
+  
+  
+  
+<rect
+   width="13.699533"
+   height="43.348454"
+   x="7.6786108"
+   y="5.4357018"
+   id="rect3081"
+   style="fill:#000000;fill-opacity:0;stroke:#000000;stroke-width:3.10540009;stroke-linecap:round;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" /><rect
+   width="8.0816011"
+   height="30.315643"
+   x="17.218063"
+   y="4.638278"
+   id="rect3081-8"
+   style="fill:#000000;fill-opacity:1;stroke:#000000;stroke-width:1.32974613;stroke-linecap:round;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" /><rect
+   width="13.699533"
+   height="43.348454"
+   x="21.313848"
+   y="5.4357018"
+   id="rect3081-2"
+   style="fill:#000000;fill-opacity:0;stroke:#000000;stroke-width:3.10540009;stroke-linecap:round;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" /><rect
+   width="13.699533"
+   height="43.348454"
+   x="34.701172"
+   y="5.4357018"
+   id="rect3081-5"
+   style="fill:#000000;fill-opacity:0;stroke:#000000;stroke-width:3.10540009;stroke-linecap:round;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" /><rect
+   width="8.0816011"
+   height="30.315643"
+   x="31.065582"
+   y="4.5407605"
+   id="rect3081-8-7"
+   style="fill:#000000;fill-opacity:1;stroke:#000000;stroke-width:1.32974613;stroke-linecap:round;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none" /></svg>
\ No newline at end of file
diff --git a/activity/activity.info b/activity/activity.info
new file mode 100644
index 0000000..bd0aa9f
--- /dev/null
+++ b/activity/activity.info
@@ -0,0 +1,7 @@
+[Activity]
+name = SimplePiano
+activity_version = 1
+bundle_id = org.sugarlabs.SimplePiano
+exec = sugar-activity activity.SimplePianoActivity
+icon = activity-simplepiano
+license = GPLv2+
diff --git a/draw_piano.py b/draw_piano.py
new file mode 100755
index 0000000..6f045c8
--- /dev/null
+++ b/draw_piano.py
@@ -0,0 +1,429 @@
+#!/usr/bin/env python
+# Copyright (C) 2011, One Laptop Per Child
+# Author, Gonzalo Odiard
+# License: LGPLv2
+#
+# The class PianoKeyboard draw a keybord and interact with the mouse
+# References
+# http://www.josef-k.net/mim/MusicSystem.html
+# http://wiki.laptop.org/images/4/4e/Tamtamhelp2.png
+#
+
+import gobject
+import gtk
+import cairo
+
+
+class PianoKeyboard(gtk.DrawingArea):
+
+    __gsignals__ = {'key_pressed': (gobject.SIGNAL_RUN_FIRST,
+                          gobject.TYPE_NONE,
+                          ([gobject.TYPE_INT, gobject.TYPE_INT,
+                            gobject.TYPE_STRING])),
+                    'key_released': (gobject.SIGNAL_RUN_FIRST,
+                          gobject.TYPE_NONE,
+                          ([gobject.TYPE_INT, gobject.TYPE_INT,
+                            gobject.TYPE_STRING]))}
+
+    def __init__(self, octaves=1, add_c=False, labels=None):
+        self._octaves = octaves
+        self._add_c = add_c
+        self._labels = labels
+        self._pressed_key = None
+        self.font_size = 20
+        super(PianoKeyboard, self).__init__()
+        # info needed to check keys positions
+        self._white_keys = [0, 2, 4, 5, 7, 9, 11]
+        self._l_keys_areas = [0, 3]
+        self._t_keys_areas = [1, 4, 5]
+        self._j_keys_areas = [2, 6]
+        self.connect('expose_event', self.expose)
+        self.connect('button_press_event', self.__button_press_cb)
+        self.connect('button_release_event', self.__button_release_cb)
+        self.connect('motion_notify_event', self.__motion_notify_cb)
+        self.set_events(gtk.gdk.EXPOSURE_MASK | gtk.gdk.BUTTON_PRESS_MASK | \
+                gtk.gdk.BUTTON_RELEASE_MASK | gtk.gdk.POINTER_MOTION_MASK | \
+                gtk.gdk.POINTER_MOTION_HINT_MASK)
+
+    def calculate_sizes(self, width):
+        self._width = width
+        self._height = self._width / 2
+        cant_keys = 7 * self._octaves
+        if self._add_c:
+            cant_keys += 1
+        self._key_width = self._width / cant_keys
+        self._black_keys_height = self._height * 2 / 3
+        self._octave_width = self._key_width * 7
+
+    def __button_press_cb(self, widget, event):
+        if event.button == 1:
+            x, y = event.x, event.y
+            key_found = self.__get_key_at_position(x, y)
+            if key_found is None:
+                return True
+            else:
+                self._pressed_key = key_found
+                octave_clicked = key_found[0]
+                key_clicked = key_found[1]
+                self.emit('key_pressed', octave_clicked, key_clicked,
+                        self.get_label(octave_clicked, key_clicked))
+                self.queue_draw()
+                return True
+
+    def __motion_notify_cb(self, widget, event):
+        # only continue if the button is pressed
+        if self._pressed_key is None:
+            return True
+
+        # if this is a hint, then let's get all the necessary
+        # information, if not it's all we need.
+        if event.is_hint:
+            x, y, state = event.window.get_pointer()
+        else:
+            x = event.x
+            y = event.y
+            state = event.state
+
+        key_found = self.__get_key_at_position(x, y)
+        if key_found != self._pressed_key:
+            self.emit('key_released', self._pressed_key[0],
+                self._pressed_key[1], self.get_label(*self._pressed_key))
+
+            self._pressed_key = key_found
+            if key_found is not None:
+                octave_clicked = key_found[0]
+                key_clicked = key_found[1]
+                self.emit('key_pressed', octave_clicked, key_clicked,
+                        self.get_label(octave_clicked, key_clicked))
+            self.queue_draw()
+
+    def __get_key_at_position(self, x, y):
+        if y > self._height:
+            return None
+        octave_found = int(x / self._octave_width)
+        key_area = int((x % self._octave_width) / self._key_width)
+        click_x = int(x % self._key_width)
+        if y > self._black_keys_height or \
+            (self._add_c and x > self._width - self._key_width):
+            key_found = self._white_keys[key_area]
+        else:
+            # check black key at the right
+            key_found = -1
+            if key_area in self._l_keys_areas or \
+                key_area in self._t_keys_areas:
+                if click_x > self._key_width * 2 / 3:
+                    key_found = self._white_keys[key_area] + 1
+            # check black key at the left
+            if key_found == -1 and \
+                key_area in self._j_keys_areas or \
+                key_area in self._t_keys_areas:
+                if click_x < self._key_width * 1 / 3:
+                    key_found = self._white_keys[key_area] - 1
+            if key_found == -1:
+                key_found = self._white_keys[key_area]
+        return (octave_found, key_found)
+
+    def __button_release_cb(self, widget, event):
+        if self._pressed_key is not None:
+            self.emit('key_released', self._pressed_key[0],
+                    self._pressed_key[1], self.get_label(*self._pressed_key))
+            self._pressed_key = None
+            self.queue_draw()
+
+    def get_label(self, octave, key):
+        if self._labels is None:
+            return ""
+        try:
+            return self._labels[octave][key]
+        except:
+            return ""
+
+    def expose(self, widget, event):
+        rect = self.get_allocation()
+        self.calculate_sizes(rect.width)
+
+        ctx = widget.window.cairo_create()
+
+        # set a clip region for the expose event
+        ctx.rectangle(event.area.x, event.area.y, event.area.width,
+                event.area.height)
+        ctx.clip()
+
+        # calculate text height
+        ctx.select_font_face("Sans", cairo.FONT_SLANT_NORMAL,
+                cairo.FONT_WEIGHT_NORMAL)
+        ctx.set_font_size(self.font_size)
+        x_bearing, y_bearing, width, height, x_advance, y_advance = \
+                ctx.text_extents('M')
+        self._text_height = height
+
+        self.draw(ctx)
+        return False
+
+    def draw(self, ctx):
+        for n in range(0, self._octaves):
+            self.draw_octave(ctx, n)
+        if self._add_c:
+            self.draw_last_C(ctx, n + 1)
+        if self._pressed_key is not None:
+            octave, key = self._pressed_key
+            if octave == -1 or (octave == self._octaves and key > 0):
+                return
+            if key == 0:
+                if octave < self._octaves:
+                    self.draw_C(ctx, octave, True)
+                else:
+                    self.draw_last_C(ctx, octave, True)
+            elif key == 1:
+                self.draw_CB(ctx, octave, True)
+            elif key == 2:
+                self.draw_D(ctx, octave, True)
+            elif key == 3:
+                self.draw_DB(ctx, octave, True)
+            elif key == 4:
+                self.draw_E(ctx, octave, True)
+            elif key == 5:
+                self.draw_F(ctx, octave, True)
+            elif key == 6:
+                self.draw_FB(ctx, octave, True)
+            elif key == 7:
+                self.draw_G(ctx, octave, True)
+            elif key == 8:
+                self.draw_GB(ctx, octave, True)
+            elif key == 9:
+                self.draw_A(ctx, octave, True)
+            elif key == 10:
+                self.draw_AB(ctx, octave, True)
+            elif key == 11:
+                self.draw_B(ctx, octave, True)
+
+    def draw_octave(self, ctx, octave_number):
+        self.draw_C(ctx, octave_number)
+        self.draw_CB(ctx, octave_number)
+        self.draw_D(ctx, octave_number)
+        self.draw_DB(ctx, octave_number)
+        self.draw_E(ctx, octave_number)
+        self.draw_F(ctx, octave_number)
+        self.draw_FB(ctx, octave_number)
+        self.draw_G(ctx, octave_number)
+        self.draw_GB(ctx, octave_number)
+        self.draw_A(ctx, octave_number)
+        self.draw_AB(ctx, octave_number)
+        self.draw_B(ctx, octave_number)
+
+        """
+        Draw 5 types of keys: L keys, T keys, J keys and black keys,
+        and if we add a c key is a simple key
+        +--+---+--+---+--+---+
+        |  |Bl |  |Bl |  | S |
+        |  | ak|  | ak|  | i |
+        |  +---+  +---+  | m |
+        |    |      |    | p |
+        |  L |  T   | J  | l |
+        +----+------+----+---+
+        """
+
+    def draw_C(self, ctx, octave_number, highlighted=False):
+        x = self._key_width * (octave_number * 7)
+        self.draw_key_L(ctx, x, highlighted)
+        self._draw_label(ctx, x, octave_number, 0, False, highlighted)
+
+    def draw_CB(self, ctx, octave_number, highlighted=False):
+        x = self._key_width * (octave_number * 7) + self._key_width * 2 / 3
+        self.draw_black(ctx, x, highlighted)
+        self._draw_label(ctx, x, octave_number, 1, True, highlighted)
+
+    def draw_D(self, ctx, octave_number, highlighted=False):
+        x = self._key_width + self._key_width * (octave_number * 7)
+        self.draw_key_T(ctx, x, highlighted)
+        self._draw_label(ctx, x, octave_number, 2, False, highlighted)
+
+    def draw_DB(self, ctx, octave_number, highlighted=False):
+        x = self._key_width + self._key_width * 2 / 3 + \
+                self._key_width * (octave_number * 7)
+        self.draw_black(ctx, x, highlighted)
+        self._draw_label(ctx, x, octave_number, 3, True, highlighted)
+
+    def draw_E(self, ctx, octave_number, highlighted=False):
+        x = self._key_width * 2 + self._key_width * (octave_number * 7)
+        self.draw_key_J(ctx, x, highlighted)
+        self._draw_label(ctx, x, octave_number, 4, False, highlighted)
+
+    def draw_F(self, ctx, octave_number, highlighted=False):
+        x = self._key_width * 3 + self._key_width * (octave_number * 7)
+        self.draw_key_L(ctx, x, highlighted)
+        self._draw_label(ctx, x, octave_number, 5, False, highlighted)
+
+    def draw_FB(self, ctx, octave_number, highlighted=False):
+        x = self._key_width * 3 + self._key_width * 2 / 3 + \
+                self._key_width * (octave_number * 7)
+        self.draw_black(ctx, x, highlighted)
+        self._draw_label(ctx, x, octave_number, 6, True, highlighted)
+
+    def draw_G(self, ctx, octave_number, highlighted=False):
+        x = self._key_width * 4 + self._key_width * (octave_number * 7)
+        self.draw_key_T(ctx, x, highlighted)
+        self._draw_label(ctx, x, octave_number, 7, False, highlighted)
+
+    def draw_GB(self, ctx, octave_number, highlighted=False):
+        x = self._key_width * 4 + self._key_width * 2 / 3 + \
+                self._key_width * (octave_number * 7)
+        self.draw_black(ctx, x, highlighted)
+        self._draw_label(ctx, x, octave_number, 8, True, highlighted)
+
+    def draw_A(self, ctx, octave_number, highlighted=False):
+        x = self._key_width * 5 + self._key_width * (octave_number * 7)
+        self.draw_key_T(ctx, x, highlighted)
+        self._draw_label(ctx, x, octave_number, 9, False, highlighted)
+
+    def draw_AB(self, ctx, octave_number, highlighted=False):
+        x = self._key_width * 5 + self._key_width * 2 / 3 + \
+                self._key_width * (octave_number * 7)
+        self.draw_black(ctx, x, highlighted)
+        self._draw_label(ctx, x, octave_number, 10, True, highlighted)
+
+    def draw_B(self, ctx, octave_number, highlighted=False):
+        x = self._key_width * 6 + self._key_width * (octave_number * 7)
+        self.draw_key_J(ctx, x, highlighted)
+        self._draw_label(ctx, x, octave_number, 11, False, highlighted)
+
+    def draw_last_C(self, ctx, octave_number, highlighted=False):
+        x = self._key_width * (octave_number * 7)
+        self.draw_key_simple(ctx, x, highlighted)
+        self._draw_label(ctx, x, octave_number, 0, False, highlighted)
+
+    def draw_key_L(self, ctx, x, highlighted):
+        ctx.save()
+        ctx.move_to(x, 0)
+        stroke = (0, 0, 0)
+        fill = (1, 1, 1)
+        if highlighted:
+            fill = (1, 1, 0)
+
+        ctx.line_to(x + self._key_width * 2 / 3, 0)
+        ctx.line_to(x + self._key_width * 2 / 3, self._black_keys_height)
+        ctx.line_to(x + self._key_width, self._black_keys_height)
+        ctx.line_to(x + self._key_width, self._height)
+        ctx.line_to(x, self._height)
+        ctx.line_to(x, 0)
+        ctx.close_path()
+        self._fill_and_stroke(ctx, fill, stroke)
+        ctx.restore()
+
+    def draw_key_T(self, ctx, x, highlighted):
+        ctx.save()
+        stroke = (0, 0, 0)
+        fill = (1, 1, 1)
+        if highlighted:
+            fill = (1, 1, 0)
+        ctx.move_to(x + self._key_width * 1 / 3, 0)
+        ctx.line_to(x + self._key_width * 2 / 3, 0)
+        ctx.line_to(x + self._key_width * 2 / 3, self._black_keys_height)
+        ctx.line_to(x + self._key_width, self._black_keys_height)
+        ctx.line_to(x + self._key_width, self._height)
+        ctx.line_to(x, self._height)
+        ctx.line_to(x, self._black_keys_height)
+        ctx.line_to(x + self._key_width * 1 / 3, self._black_keys_height)
+        ctx.close_path()
+        self._fill_and_stroke(ctx, fill, stroke)
+        ctx.restore()
+
+    def draw_key_J(self, ctx, x, highlighted):
+        ctx.save()
+        stroke = (0, 0, 0)
+        fill = (1, 1, 1)
+        if highlighted:
+            fill = (1, 1, 0)
+        ctx.move_to(x + self._key_width * 1 / 3, 0)
+        ctx.line_to(x + self._key_width, 0)
+        ctx.line_to(x + self._key_width, self._height)
+        ctx.line_to(x, self._height)
+        ctx.line_to(x, self._black_keys_height)
+        ctx.line_to(x + self._key_width * 1 / 3, self._black_keys_height)
+        ctx.close_path()
+        self._fill_and_stroke(ctx, fill, stroke)
+        ctx.restore()
+
+    def draw_key_simple(self, ctx, x, highlighted):
+        ctx.save()
+        stroke = (0, 0, 0)
+        fill = (1, 1, 1)
+        if highlighted:
+            fill = (1, 1, 0)
+        ctx.move_to(x, 0)
+        ctx.line_to(x + self._key_width, 0)
+        ctx.line_to(x + self._key_width, self._height)
+        ctx.line_to(x, self._height)
+        ctx.close_path()
+        self._fill_and_stroke(ctx, fill, stroke)
+        ctx.restore()
+
+    def draw_black(self, ctx, x, highlighted):
+        ctx.save()
+        ctx.move_to(x, 0)
+        stroke = (0, 0, 0)
+        fill = (0, 0, 0)
+        if highlighted:
+            fill = (1, 1, 0)
+
+        ctx.line_to(x + self._key_width * 2 / 3, 0)
+        ctx.line_to(x + self._key_width * 2 / 3, self._black_keys_height)
+        ctx.line_to(x, self._black_keys_height)
+        ctx.line_to(x, 0)
+        ctx.close_path()
+        self._fill_and_stroke(ctx, fill, stroke)
+        ctx.restore()
+
+    def _fill_and_stroke(self, ctx, fill, stroke):
+        ctx.set_source_rgb(*fill)
+        ctx.fill_preserve()
+        ctx.set_source_rgb(*stroke)
+        ctx.stroke()
+
+    def _draw_label(self, ctx, x, octave_number, position, black_key,
+                highlighted):
+        #print "Dibujando ",text
+        if self._labels is not None:
+            text = self._labels[octave_number][position]
+            x_bearing, y_bearing, width, height, x_advance, y_advance = \
+                    ctx.text_extents(text)
+            if black_key:
+                x_text = x + self._key_width * 1 / 3 - (width / 2 + x_bearing)
+                y_text = self._black_keys_height - (self._text_height * 2)
+                if highlighted:
+                    stroke = (0, 0, 0)
+                else:
+                    stroke = (1, 1, 1)
+            else:
+                x_text = x + self._key_width / 2 - (width / 2 + x_bearing)
+                y_text = self._height - (self._text_height * 2)
+                stroke = (0, 0, 0)
+            ctx.set_source_rgb(*stroke)
+            ctx.move_to(x_text, y_text)
+            ctx.show_text(text)
+
+
+def print_key_pressed(widget, octave_clicked, key_clicked, letter):
+    print 'Pressed Octave: %d Key: %d Letter: %s' % (octave_clicked,
+        key_clicked, letter)
+
+
+def print_key_released(widget, octave_clicked, key_clicked, letter):
+    print 'Released Octave: %d Key: %d Letter: %s' % (octave_clicked,
+        key_clicked, letter)
+
+
+def main():
+    window = gtk.Window()
+    labels_tamtam = ['Q2W3ER5T6Y7UI', 'ZSXDCVGBHNJM', ',']
+    piano = PianoKeyboard(octaves=2, add_c=True, labels=labels_tamtam)
+    piano.connect('key_pressed', print_key_pressed)
+    piano.connect('key_released', print_key_released)
+
+    window.add(piano)
+    window.connect("destroy", gtk.main_quit)
+    window.show_all()
+    gtk.main()
+
+if __name__ == "__main__":
+    main()
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..c24196e
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+
+# Copyright (C) 2009, Simon Schampijer
+#
+# This program 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 2 of the License, or
+# (at your option) any later version.
+#
+# This program 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 this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+from sugar.activity import bundlebuilder
+
+bundlebuilder.start()