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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):
if not Config.FEATURES_GRAB_MOUSE:
return
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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