class LifeApp:
def __init__(self,win):
self.win = win
self.drawGUI(win)
self.locations = [(r,c) for r in range(45) for c in range(45)]
self.model = LifeModel(45,45)
self.animating = False # the model/display is not changing
self.running = True # the application is running
def drawGUI(self, win):
# draws gui components including: grid, runbutton, pausebutton, stepbutton
# savebutton, loadbutton, clearbutton, quitbutton
self.grid = GridView(win,Point(50,60), 2.1,45,45)
self.runbutton = Button(win,Point(12.5,98),6,3,"Run")
self.runbutton.activate()
self.pausebutton = Button(win,Point(25,98),8.5,3,"Pause")
self.pausebutton.activate()
self.stepbutton = Button(win,Point(37.5,98),7,3,"Step")
self.stepbutton.activate()
self.savebutton = Button(win,Point(62.5,98),7,3,"Save")
self.savebutton.activate()
self.loadbutton = Button(win,Point(75,98),7,3,"Load")
self.loadbutton.activate()
self.clearbutton = Button(win,Point(50,98),7.5,3,"Clear")
self.clearbutton.activate()
self.quitbutton = Button(win,Point(87.5,98),6,3,"Quit")
self.quitbutton.activate()
def run(self,win):
#defines the event loop
while self.running:
self.setButtonState()
pt = self.win.checkMouse()
if pt != None:
self.handleEvent(pt)
if self.animating:
changes = self.model.step()
self.updateView(changes)
time.sleep(.1)
self.win.close()
def setButtonState(self):
# sets proper activation of run and pause buttons
if self.animating == True:
self.runbutton.deactivate()
self.pausebutton.activate()
else:
self.runbutton.activate()
self.pausebutton.deactivate()
def updateView(self,locations):
# Sets checkboxes in locations of grid to reflect their state
# in the life model. Locations is a list of (row,column) pairs.
for r,c in self.locations:
value = self.model.isAlive(r,c)
self.grid.setChecked(r,c,value)
self.win.update()
def handleEvent(self, pt):
# The user clicks at point pt, take appropriate action
if self.quitbutton.clicked(pt):
self.running = False
elif self.runbutton.clicked(pt):
self.animating = True
elif self.pausebutton.clicked(pt):
self.animating = False
if self.grid.clicked(pt):
self.on_grid()
elif self.stepbutton.clicked(pt):
self.on_step()
elif self.loadbutton.clicked(pt):
self.on_load()
elif self.savebutton.clicked(pt):
self.on_save()
elif self.clearbutton.clicked(pt):
self.on_clear()
def on_step(self):
# turns off animation
# call step on your life model to get a list of changed locations
# call your LifeApps updateView passing the list of changed locations
self.animating = False
x = self.model.step()
self.updateView(x)
def on_load(self):
#loads a file and displays its saved string as checkboxes on the gridview
self.animating = False
fromFile=askopenfilename()
self.model.loadString(open(fromFile).read())
self.updateView(self.locations)
def on_save(self):
#saves the current checkboxes drawn on the grid view as string to a specified file
self.animating = False
outFile=asksaveasfilename()
f=open(outFile, 'w')
f.write(str(self.model))
def on_grid(self):
#allows the user to click on the grid
i,j = self.grid.getLocation()
oldValue = self.model.isAlive(i,j)
self.model.setAlive(i,j, not oldValue)
self.updateView([(i,j)])
def on_clear(self):
#clears the grid to update it to its original state
for r in range(45):
for c in range(45):
self.model.setAlive(r,c,False)
self.updateView(self.locations)
