From e12dbff4dda5aafbaac98f75f0467ef00dc06c32 Mon Sep 17 00:00:00 2001
From: Nat <natcl@hotmail.com>
Date: Thu, 13 Sep 2007 15:55:52 +0000
Subject: Activity split

---
(limited to 'common/Util/Trackpad.py')

diff --git a/common/Util/Trackpad.py b/common/Util/Trackpad.py
new file mode 100644
index 0000000..0ddb929
--- /dev/null
+++ b/common/Util/Trackpad.py
@@ -0,0 +1,93 @@
+#!/usr/bin/env python
+import pygtk
+pygtk.require( '2.0' )
+import gtk
+import gobject
+
+from  common.Util.CSoundClient import new_csound_client
+import common.Config as Config
+
+KEY_MAP_PIANO = Config.KEY_MAP_PIANO
+
+class Trackpad:
+    def __init__(self, win):
+        self.win = win
+        self.csnd = new_csound_client()
+        win.add_events(gtk.gdk.POINTER_MOTION_MASK)
+        win.add_events(gtk.gdk.BUTTON_PRESS_MASK)
+        win.add_events(gtk.gdk.BUTTON_RELEASE_MASK)
+        win.connect('motion-notify-event',self.handle_motion)
+        win.connect('key-press-event',self.handle_keyPress)
+        win.connect('key-release-event',self.handle_keyRelease)
+
+        self.first_x = None
+        self.current_x = None
+        self.final_x = None
+        self.first_y = None
+        self.current_y = None
+        self.final_y = None
+        
+        self.buttonPressed = False
+        
+        self.create_invisible_cursor()
+        
+        self.display = self.win.get_display()
+        self.screen = gtk.gdk.Display.get_default_screen(self.display)
+        self.context = None
+ 
+    def setContext(self, context):
+        self.context = context
+
+    def create_invisible_cursor(self):
+        pix_data = """/* XPM */
+        static char * invisible_xpm[] = {
+        "1 1 1 1",
+        "       c None",
+        " "};"""
+        color = gtk.gdk.Color()
+        pix = gtk.gdk.pixmap_create_from_data(None, pix_data, 1, 1, 1, color, color)
+        self.invisible_cursor = gtk.gdk.Cursor(pix,pix,color,color,0,0)
+        
+    def handle_motion(self,widget,event):
+        if self.context != 'edit':
+            if event.x < 0:
+                X = 0
+            elif event.x > self.screen.get_width():
+                X = self.screen.get_width()
+            else:
+                X = event.x
+
+            if event.y < 0:
+                Y = 0
+            elif event.y > self.screen.get_height():
+                Y = self.screen.get_height()
+            else:
+                Y = event.y
+
+            self.current_x = X
+            self.current_y = Y
+            if self.buttonPressed:
+                self.final_x = X - self.first_x 
+                self.final_y = Y - self.first_y
+                self.csnd.setTrackpadX(self.final_x)
+                self.csnd.setTrackpadY(self.final_y)
+        
+    def handle_keyPress(self,widget,event):
+        if KEY_MAP_PIANO.has_key(event.hardware_keycode) and self.buttonPressed == False:
+            gtk.gdk.Display.warp_pointer(self.display, self.screen, self.screen.get_width() / 2, self.screen.get_height() / 2)
+            gtk.gdk.pointer_grab(self.win.window, event_mask = gtk.gdk.POINTER_MOTION_MASK)#, cursor = self.invisible_cursor)
+            self.buttonPressed = True
+            self.first_x = self.screen.get_width() / 2
+            self.first_y = self.screen.get_height() / 2
+    
+    def handle_keyRelease(self,widget,event):
+        if KEY_MAP_PIANO.has_key(event.hardware_keycode):            
+            gtk.gdk.pointer_ungrab(time = 0L)
+            self.buttonPressed = False
+            self.restoreDelay = gobject.timeout_add(120, self.restore)
+
+    def restore( self ):
+        self.csnd.setTrackpadX(0)
+        self.csnd.setTrackpadY(0)
+        gobject.source_remove( self.restoreDelay )
+
--
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