# touch_draw_demo.py

# touch_drawing.py

import appuifw, e32, graphics, key_codes, time

def cv(): pass

cv.x=0
cv.y=0
cv.color=(255,0,0)
thickness=5
cv.jot=-10,-10,-10,-10
cv.t=0

if not appuifw.touch_enabled():
    appuifw.note(u"This application only works on devices that support touch input")

def e_callback(event):
    x=event['pos'][0]
    y=event['pos'][1]
    if not event['type'] in [key_codes.EButton1Up, key_codes.EButton1Down, key_codes.EDrag]:
        return
    if event['type'] == key_codes.EButton1Down:
        cv.x=x
        cv.y=y
    elif event['type'] == key_codes.EDrag:
        if cv.t < time.time():
            cv.t=time.time()+0.04
            cv.jot=(x, y, cv.x, cv.y)
            cv.x=x
            cv.y=y
            draw(())

def draw(rect):
    canvas.line(cv.jot, outline=cv.color, width=thickness, fill=cv.color)


def quit():
    script_lock.signal()

canvas=appuifw.Canvas(event_callback=e_callback, redraw_callback=draw)
appuifw.app.directional_pad=False
appuifw.app.orientation='portrait'
appuifw.app.screen='large'
appuifw.app.body=canvas
w,h=canvas.size
img=graphics.Image.new((w,h))

canvas.clear()
draw(())

print 12345
appuifw.app.exit_key_handler=quit
script_lock=e32.Ao_lock()
script_lock.wait()