python切割plist图片

在别人的代码基础上做了一点修改，修正裁剪不准确的问题。

脚本用法请参考https://blog.youkuaiyun.com/linuxchen/article/details/16865645

主要是result_box不对。

result_box=(    
                ( sizelist[0] - width )/2,    
                ( sizelist[1] - height )/2,    
                ( sizelist[0] + width )/2,    
                ( sizelist[1] + height )/2    
           )    

完整代码如下

#!python    
import os,sys    
import logging
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)    
    
	print "witdh: ", width
	print "offset: ", v['offset']
	print "x: ", to_list(v['offset'])[0]
	s = (sizelist[0] - width)/2
	d = sizelist[0]
	
	offset = [ int(x) for x in to_list(v['offset'])]
	print ( sizelist[0] - width )/2 + offset[0],
	print ( sizelist[1] - height )/2 + offset[1],
	print ( sizelist[0] + width )/2 + offset[0],
	print ( sizelist[1] + height )/2 + offset[1]
        result_image = Image.new('RGBA', sizelist, (0,0,0,0))   
        if v['rotated']:    
            result_box=(    
                ( sizelist[0] - height )/2 + offset[0],    
                ( sizelist[1] - width )/2 - offset[1],    
                ( sizelist[0] + height )/2 + offset[0],
                ( sizelist[1] + width )/2 - offset[1]    
                )    
        else:    
            result_box=(    
                ( sizelist[0] - width )/2 + offset[0],    
                ( sizelist[1] - height )/2 - offset[1],    
                ( sizelist[0] + width )/2 + offset[0],    
                ( sizelist[1] + height )/2 - offset[1]     
                )
        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"