import pygame
import os
+from threading import Thread
+import time
from eventutils import EventHandlerMixin, event_handler
from itertools import cycle
-from pygame.locals import MOUSEBUTTONDOWN, MOUSEBUTTONUP, USEREVENT
-TIMEOUT = USEREVENT + 1
-class WarpingCursor(pygame.sprite.Sprite, EventHandlerMixin):
+class WarpingCursor(pygame.sprite.DirtySprite, EventHandlerMixin):
'''
The class for animating the warping cursor
'''
@staticmethod
def _get_theme_images(name) :
basePath = os.path.abspath(__file__).split(os.path.sep)[:-1]
- basePath.append('data')
+ basePath.extend(['data', 'cursor'])
basePath.append(name)
basePath = os.path.sep.join(basePath)
images = [f for f in os.listdir(basePath) if os.path.splitext(f)[1] == '.png']
return basePath, images
- def __init__(self, theme='black', duration=75, blink=True):
- pygame.sprite.Sprite.__init__(self)
+ def __init__(self, theme='black', duration=50, blinkMode=True):
+ pygame.sprite.DirtySprite.__init__(self)
imagesPath, images = WarpingCursor._get_theme_images(theme)
flashImage = images.pop(images.index('flash.png'))
flashImagePath = os.path.sep.join([imagesPath, flashImage])
self.duration = duration
self.image = self.images[0]
- self.rect = pygame.Rect((0,0), (self.width, self.height))
- self.update()
+ # workarround cursor alignement problem
+ pygame.event.set_blocked(pygame.MOUSEMOTION)
+ pygame.mouse.set_pos(pygame.mouse.get_pos())
+ pygame.event.set_allowed(pygame.MOUSEMOTION)
+ # ---
+ x, y = pygame.mouse.get_pos()
+ left = x - self.width / 2
+ top = y - self.height / 2
+ self.rect = pygame.Rect((left, top), (self.width, self.height))
- self.blink = blink
- if blink :
- self._startBlink()
-
+ self.blinkMode = blinkMode
+ self._startBlink()
+
+ def __del__(self) :
+ if hasattr(self, 'timer') :
+ try : self.timer.stop()
+ except : pass
+
def _startBlink(self) :
- pygame.time.set_timer(TIMEOUT, self.duration)
- self.iterator = self.iterImages()
+ if self.blinkMode :
+ self._blinking = True
+ self.iterator = self.iterImages()
+ self.timer = ForeverTimer(self.duration, self.loadNext)
+ self.timer.start()
+ def _stopBlink(self) :
+ if self.blinkMode :
+ self.timer.stop()
+
def iterImages(self) :
for img in cycle(self.images) :
yield img
- @event_handler(TIMEOUT)
- def loadNext(self, event) :
- if self.blink :
+ def loadNext(self) :
+ if self._blinking :
+ self.dirty = 1
self.image = self.iterator.next()
- self.update()
- @event_handler(MOUSEBUTTONDOWN)
+ @event_handler(pygame.MOUSEBUTTONDOWN)
def flashOn(self, event) :
- self.blink=False
+ self.dirty = 1
+ self._blinking = False
self.image = self.flashImage
- self.update()
- @event_handler(MOUSEBUTTONUP)
+ @event_handler(pygame.MOUSEBUTTONUP)
def flashOff(self, event) :
- self.blink = True
- self.loadNext(event)
+ self.dirty = 1
+ if self.blinkMode :
+ self._blinking = True
+ else :
+ self.image = self.images[0]
+
+ @event_handler(pygame.MOUSEMOTION)
+ def move(self, event) :
+ self.dirty = 1
+ self.rect.move_ip(event.rel)
+
+ def setPosition(self, pos) :
+ self.dirty = 1
+ x, y = pos
+ rx, ry = self.rect.centerx, self.rect.centery
+ self.rect.move_ip(x-rx, y-ry)
+
- def update(self) :
- surface = pygame.display.get_surface()
- surface.blit(self.image, self.rect)
+class ForeverTimer(Thread) :
+ def __init__(self, duration, func, *args, **kw) :
+ Thread.__init__(self)
+ self.duration = duration / 1000.
+ self.func = func
+ self.args = args
+ self.kw = kw
+ self.running = True
+
+ def run(self) :
+ while self.running :
+ self.func(*self.args, **self.kw)
+ time.sleep(self.duration)
+
+ def stop(self) :
+ self.running = False
\ No newline at end of file