这是用pygame制作的动态图片显示程序。
"""本程序定义了一个GIFImage类，这个类是Matthew编写，10年前的类，现在运行不了。
修改后可以， modifyed by lixingqiu@2019/4/8"""
import pygame
from PIL import Image
from pygame.locals import *
import time
class GIFImage(object):
def __init__(self, filename):
self.filename = filename
self.image = Image.open(filename)
self.frames = []
self.get_frames()
self.cur = 0
self.ptime = time.time()
self.running = True
self.breakpoint = len(self.frames)-1
self.startpoint = 0
self.reversed = False
def get_rect(self):
return pygame.rect.Rect((0,0), self.image.size)
def get_frames(self):
image = self.image
pal = image.getpalette()
base_palette = []
for i in range(0, len(pal), 3):
rgb = pal[i:i+3]
base_palette.append(rgb)
all_tiles = []
try:
while 1:
if not image.tile:
image.seek(0)
if image.tile:
all_tiles.append(image.tile[0][3][0])
image.seek(image.tell()+1)
except EOFError:
image.seek(0)
all_tiles = tuple(set(all_tiles))
try:
while 1:
try:
duration = image.info["duration"]
except:
duration = 100
duration *= .001 # 转换成毫秒
cons = False
x0, y0, x1, y1 = (0, 0) + image.size
if image.tile:
tile = image.tile
else:
image.seek(0)
tile = image.tile
if len(tile) > 0:
x0, y0, x1, y1 = tile[0][1]
if all_tiles:
if all_tiles in ((6,), (7,)):
cons = True
pal = image.getpalette()
palette = []
for i in range(0, len(pal), 3):
rgb = pal[i:i+3]
palette.append(rgb)
elif all_tiles in ((7, 8), (8, 7)):
pal = image.getpalette()
palette = []
for i in range(0, len(pal), 3):
rgb = pal[i:i+3]
palette.append(rgb)
else:
palette = base_palette
else:
palette = base_palette
pi = pygame.image.fromstring(image.tobytes(), image.size, image.mode)
pi.set_palette(palette)
if "transparency" in image.info:
pi.set_colorkey(image.info["transparency"])
pi2 = pygame.Surface(image.size, SRCALPHA)
if cons:
for i in self.frames:
pi2.blit(i[0], (0,0))
pi2.blit(pi, (x0, y0), (x0, y0, x1-x0, y1-y0))
self.frames.append([pi2, duration])
image.seek(image.tell()+1)
except EOFError:
pass
def render(self, screen, pos):
if self.running:
if time.time() - self.ptime > self.frames[self.cur][1]:
if self.reversed:
self.cur -= 1
if self.cur < self.startpoint:
self.cur = self.breakpoint
else:
self.cur += 1
if self.cur > self.breakpoint:
self.cur = self.startpoint
self.ptime = time.time()
screen.blit(self.frames[self.cur][0], pos)
def seek(self, num):
self.cur = num
if self.cur < 0:
self.cur = 0
if self.cur >= len(self.frames):
self.cur = len(self.frames)-1
def set_bounds(self, start, end):
"""设置起始帧和结束帧"""
if start < 0:
start = 0
if start >= len(self.frames):
start = len(self.frames) - 1
if end < 0:
end = 0
if end >= len(self.frames):
end = len(self.frames) - 1
if end < start:
end = start
self.startpoint = start
self.breakpoint = end
def pause(self):
self.running = False
def play(self):
self.running = True
def rewind(self):
self.seek(0)
def fastforward(self):
self.seek(self.length()-1)
def get_height(self):
return self.image.size[1]
def get_width(self):
return self.image.size[0]
def get_size(self):
return self.image.size
def length(self):
return len(self.frames)
def reverse(self):
self.reversed = not self.reversed
def reset(self):
self.cur = 0
self.ptime = time.time()
self.reversed = False
def copy(self):
new = GIFImage(self.filename)
new.running = self.running
new.breakpoint = self.breakpoint
new.startpoint = self.startpoint
new.cur = self.cur
new.ptime = self.ptime
new.reversed = self.reversed
return new
def event_check():
"""事件检测函数"""
for event in pygame.event.get():
if event.type == QUIT:
return False
return True
def main():
pygame.init()
lixingqiu = GIFImage("李兴球/8.gif")
width,height = lixingqiu.get_size()
screen = pygame.display.set_mode((width, height))
# 当事件检测返回真则继续while循环
while event_check():
lixingqiu.render(screen, (0, 0)) # 渲染gif图
pygame.display.flip() # 刷新显示
pygame.quit() # 关闭窗口
if __name__ == "__main__":
main()
