Django imgareaselect手动剪切头像实现方法

    
{% csrf_token %}  {{form.as_table}} 

    
继续上传头像
 {% if messages %} {% for message in messages %} {{ message }}
 {% endfor %} {% endif %} 
 {%for p in photos%} 

继续剪切
 {%endfor%} 

    
头像剪切 返回
 {% if messages %} {% for message in messages %} {{ message }}
 {% endfor %} {% endif %} 
 
 
点击原图 选择剪切区域
 
 
预览选择区域
 
 
{% csrf_token %} 
 
 
 
 剪切坐标 
 剪切尺寸 
 
 
X1:
{{form.x1}}
宽度:
{{form.w}}
 
Y1:
{{form.y1}}
高度:
{{form.h}}
 
X2:
{{form.x2}}
 
Y2:
{{form.y2}}

 #coding=utf-8 from django import forms class PhotoForm(forms.Form): photo_name = forms.ImageField(label=u"头像") class HatHeadCutForm(forms.Form): x1=forms.IntegerField(widget=forms.TextInput(attrs={'size': 4,})) y1=forms.IntegerField(widget=forms.TextInput(attrs={'size': 4,})) x2=forms.IntegerField(widget=forms.TextInput(attrs={'size': 4,})) y2=forms.IntegerField(widget=forms.TextInput(attrs={'size': 4,})) w=forms.IntegerField(widget=forms.TextInput(attrs={'size': 4,})) h=forms.IntegerField(widget=forms.TextInput(attrs={'size': 4,})) 

 #coding=utf-8 from django.db import models class Photo(models.Model): photo_name=models.CharField(u"图片路径",max_length=255) photo_thumb=models.CharField(u"图片缩略图",max_length=255) 

 #coding=utf-8 from django.core.urlresolvers import reverse from django.shortcuts import render_to_response, get_object_or_404 from django.http import HttpResponse,HttpResponseRedirect from django.template import RequestContext from django.contrib import messages import os,uuid,ImageFile,Image from PhotoCut.headhat.forms import PhotoForm,HatHeadCutForm from PhotoCut.headhat.models import Photo from PhotoCut.settings import MEDIA_ROOT,HEADHAT_ABS_PATH,HEADHAT_VIR_PATH def index(request,templates="headhat/index.html"): template_var={} form=PhotoForm() if request.method=="POST": form = PhotoForm(request.POST.copy(),request.FILES) if form.is_valid(): file=request.FILES.get("photo_name",None) if file: p=ImageFile.Parser() for c in file.chunks(): p.feed(c) img=p.close() if img.mode != 'RGBA': img = img.convert('RGBA') if img.size[0]>img.size[1]: offset=int(img.size[0]-img.size[1])/2 img=img.crop((offset,0,int(img.size[0]-offset),img.size[1])) else: offset=int(img.size[1]-img.size[0])/2 img=img.crop((0,offset,img.size[0],(img.size[1]-offset))) img.thumbnail((300, 300)) file_name="%s.jpg-600"%str(uuid.uuid1()) img.save(os.path.join(HEADHAT_ABS_PATH,file_name),"JPEG",quality=100) messages.info(request,u"上传成功！") p=Photo.objects.create(photo_name=file_name) p.save() return HttpResponseRedirect(reverse("headhat_cut",kwargs={"id":p.id})) template_var["form"]=form return render_to_response(templates,template_var,context_instance=RequestContext(request)) def cut(request,id,templates="headhat/cut.html"): template_var={} p=get_object_or_404(Photo,pk=int(id)) if not p.photo_name: messages.info(request,u"请先上传图片！") return HttpResponseRedirect(reverse("headhat_index")) template_var["vir_path"]=os.path.join(HEADHAT_VIR_PATH,p.photo_name) form=HatHeadCutForm() if request.method=='POST': form=HatHeadCutForm(request.POST) if form.is_valid(): try: img=Image.open(os.path.join(HEADHAT_ABS_PATH,p.photo_name)) except IOError: messages.info(request,u"读取文件错误！") data=form.cleaned_data img=img.crop((data["x1"],data["y1"],data["x2"],data["y2"])) img.thumbnail((50, 50)) file_name="%s_%s"%(os.path.splitext(p.photo_name)[0],"_50_50.jpg-600") img.save(os.path.join(HEADHAT_ABS_PATH,file_name),"JPEG",quality=100) p.photo_thumb=file_name p.save() messages.info(request,u"剪切成功！") return HttpResponseRedirect(reverse("headhat_show")) else: messages.info(request,u"请剪切后 再保存！") template_var["form"]=form return render_to_response(templates,template_var,context_instance=RequestContext(request)) def show(request,templates="headhat/show.html"): template_var={} photos=Photo.objects.all() template_var["path"]=HEADHAT_VIR_PATH template_var["photos"]=photos return render_to_response(templates,template_var,context_instance=RequestContext(request))