def post_event(self, event, *args):
ev = SDL.SDL_Event()
ev.type = SDL.SDL_USEREVENT
ev.user.code = self.known_events[event]
argcopy = tuple(args)
argid = self.event_data_counter
self.event_data_counter += 1
data1 = ctypes.cast(argid, ctypes.c_void_p)
self.event_data[argid] = argcopy
ev.user.data1 = data1
SDL.SDL_PushEvent(SDL.pointer(ev))
def blit_surface(self, surface, x, y, anchor_x='left', anchor_y='bottom'):
"""Blit the entire image to the window with upper left corner at
the position specified.
"""
w = surface.contents.w
h = surface.contents.h
y = self.height - y
if anchor_y == 'bottom':
y -= h
elif anchor_y == 'center':
y -= h // 2
if anchor_x == 'center':
x -= w // 2
elif anchor_x == 'right':
x -= w
destrect = SDL.SDL_Rect(x, y, 0, 0)
SDL.SDL_UpperBlit(surface, None, self.screen, SDL.pointer(destrect))
def main_loop(): ev = SDL.SDL_Event() oldtime = SDL.SDL_GetTicks() maxfps = 100 global quit while not quit: while SDL.SDL_PollEvent(SDL.pointer(ev)) == 1: handle_event(ev) newtime = SDL.SDL_GetTicks() dt = newtime - oldtime oldtime = newtime waittime = 1000 / maxfps - dt if waittime > 0: SDL.SDL_Delay(waittime)
def clear_rect(self, x, y, w, h):
destrect = SDL.SDL_Rect(x, self.height - y - h, w, h)
print "clearing %s" % str((x, self.height - y - h, w, h))
SDL.SDL_FillRect(self.screen, SDL.pointer(destrect), 0)
def clip(self, x, y, w, h):
destrect = SDL.SDL_Rect(x, self.height - y - h, w, h)
SDL.SDL_SetClipRect(self.screen, SDL.pointer(destrect))
def main_loop():
ev = SDL.SDL_Event()
oldtime = SDL.SDL_GetTicks()
global screen
image = SDL.IMG_Load('example2.png')
if not image:
print "failed to load image"
return
maxfps = 100
global quit
while not quit:
SDL.SDL_BlitSurface(image, None, screen, None)
SDL.SDL_Flip( screen )
while SDL.SDL_PollEvent(SDL.pointer(ev)) == 1:
handle_event(ev)
newtime = SDL.SDL_GetTicks()
dt = newtime - oldtime
oldtime = newtime
waittime = 1000 / maxfps - dt
if waittime > 0:
SDL.SDL_Delay(waittime)
def event_loop(self):
self.running = True
ev = SDL.SDL_Event()
while self.running:
self.on_draw()
self.flip()
while SDL.SDL_WaitEvent(SDL.pointer(ev)) == 1:
if ev.type == SDL.SDL_KEYDOWN:
self.controller.process_key_press(ev.key.keysym.sym,
ev.key.keysym.mod)
break
elif ev.type == SDL.SDL_MOUSEMOTION:
pass
elif ev.type == SDL.SDL_QUIT:
self.quit()
elif ev.type == SDL.SDL_USEREVENT:
argid = int(ev.user.data1)
user_data = self.event_data.pop(argid)
# print "User event! code=%d data1=%s user_data=%s" % (ev.user.code, ev.user.data1, str(user_data))
func_name = self.event_code_to_callback[ev.user.code]
callback = getattr(self, func_name)
retval = callback(*user_data)
if retval == "force redraw":
break
UpdateManager.process_tasks()
