# Description of the program:
# Program creates a graphics window 700 pixels by 600 pixels
# Then on any mouse event (click, release or drag) it informs the user
# about it in the graphics window along with the coordinates of the event

from cs1graphics import *

class IdentifyMouseEventHandler(EventHandler):
    def __init__(self,textObj):
        EventHandler.__init__(self)
        self._text=textObj
        self._text.setMessage('No mouse events yet')

    def handle(self,event):
        if event.getDescription() == 'mouse click':
            p=event.getMouseLocation() # get location of Mouse - point

            t='mouse click at ' + str(p)
            # alternate:
            # t='mouse click at' + str(p.getX()) + ',' + str(p.getY()) + ')'
            self._text.setMessage(t)
            
        elif event.getDescription() == 'mouse release':
            p=event.getMouseLocation() # get location of Mouse - point

            t='mouse release at ' + str(p)
            self._text.setMessage(t)
            
        elif event.getDescription() == 'mouse drag':
            p=event.getMouseLocation() # get location of Mouse - point

            t='mouse drag at ' + str(p)
            self._text.setMessage(t)
            
        else:
            print 'not a mouse event'

def main():
    paper=Canvas(700,600,'light yellow','Playing with mouse events')

    text1=Text('Event:',12,Point(140,550))
    text1.setFontColor('dark blue')
    paper.add(text1)

    text2=Text('',12,Point(300,550))
    paper.add(text2)

    mouseEvent=IdentifyMouseEventHandler(text2) # create the handler

    print 'Activating event handler'

    paper.addHandler(mouseEvent) # activate the handler
    print 'Event handler should be working now'

main()