對Plist文件拆分爲單圖

有時候拿到plist不好改變，那麼我們就將plist文件切成小圖來編輯

1、首先安裝 python 2.7，我是從官網下載的，地址：https://www.python.org/downloads/，從裏面找到2.7下載。

2、配置環境變量 Path :C:\Python27

3、檢驗python是否安裝配置成功：打開cmd，輸入python，如果出現以下界面，則說明你的python安裝成功了

4、安裝第三方的模塊Pillow-2.4.0.win-amd64-py2.7.exe，我是從 https://pypi.org/project/Pillow/2.7.0/#files 下載的，你也可以自己去下載，具體版本自己找。

5、準備切圖，創建一個文本，修改後綴爲py，建議命名：unpack_plist.py，代碼如下：

#!python
import os,sys
from xml.etree import ElementTree
from PIL import Image

def tree_to_dict(tree):
    d = {}
    for index, item in enumerate(tree):
        if item.tag == 'key':
            if tree[index+1].tag == 'string':
                d[item.text] = tree[index + 1].text
            elif tree[index + 1].tag == 'true':
                d[item.text] = True
            elif tree[index + 1].tag == 'false':
                d[item.text] = False
            elif tree[index+1].tag == 'dict':
                d[item.text] = tree_to_dict(tree[index+1])
    return d

def gen_png_from_plist(plist_filename, png_filename):
    file_path = plist_filename.replace('.plist', '')
    big_image = Image.open(png_filename)
    root = ElementTree.fromstring(open(plist_filename, 'r').read())
    plist_dict = tree_to_dict(root[0])
    to_list = lambda x: x.replace('{','').replace('}','').split(',')
    for k,v in plist_dict['frames'].items():
        rectlist = to_list(v['frame'])
        width = int( rectlist[3] if v['rotated'] else rectlist[2] )
        height = int( rectlist[2] if v['rotated'] else rectlist[3] )
        box=( 
            int(rectlist[0]),
            int(rectlist[1]),
            int(rectlist[0]) + width,
            int(rectlist[1]) + height,
            )
        sizelist = [ int(x) for x in to_list(v['sourceSize'])]
        rect_on_big = big_image.crop(box)

        if v['rotated']:
            rect_on_big = rect_on_big.rotate(90)

        result_image = Image.new('RGBA', sizelist, (0,0,0,0))
        if v['rotated']:
            result_box=(
                ( sizelist[0] - height )/2,
                ( sizelist[1] - width )/2,
                ( sizelist[0] + height )/2,
                ( sizelist[1] + width )/2
                )
        else:
            result_box=(
                ( sizelist[0] - width )/2,
                ( sizelist[1] - height )/2,
                ( sizelist[0] + width )/2,
                ( sizelist[1] + height )/2
                )
        result_image.paste(rect_on_big, result_box, mask=0)

        if not os.path.isdir(file_path):
            os.mkdir(file_path)
        outfile = (file_path+'/' + k).replace('gift_', '')
        print outfile, "generated"
        result_image.save(outfile)

if __name__ == '__main__':
    filename = sys.argv[1]
    plist_filename = filename + '.plist'
    png_filename = filename + '.png'
    if (os.path.exists(plist_filename) and os.path.exists(png_filename)):
        gen_png_from_plist( plist_filename, png_filename )
    else:
        print "make sure you have boith plist and png files in the same directory"

6、打開CMD，跳到你安裝的python版本下，如我安裝的python在D盤下，