"""
添加滤镜：提供多种滤镜供选择添加。 

# lzy #
"""

from tkinter import *
from PIL import Image,ImageFilter

import UI
from VariableFrame import VariableFrame

#
class FilterFrame(VariableFrame):
    def __init__(self, canv, master=None):
        VariableFrame.__init__(self, canv, master)
        
        self.placeWidget()
        
        
    def placeWidget(self):
        """
            放置控件
        """
        bcolor = UI.bg
        fcolor = UI.fg
        w = UI.rightWidth-12
        h = 25
        f = UI.font
        fy = 5
        dy = h+8
        fx = 0
        sx = 130
        
        i=0
        btn1 = Button(self, text="高斯模糊",
                      bg=bcolor, fg=fcolor,
                      bitmap=UI.viewBmp, compound='left',
                      width=w, height=h,
                      font=f,
                      command=lambda:self.addFilter(ImageFilter.GaussianBlur))
        btn1.place(x=fx, y=fy+i*dy)
        
        i += 1
        btn2 = Button(self, text="普通模糊",
                      bg=bcolor, fg=fcolor,
                      bitmap=UI.viewBmp, compound='left',
                      width=w, height=h,
                      font=f,
                      command=lambda:self.addFilter(ImageFilter.BLUR))
        btn2.place(x=fx, y=fy+i*dy)
        
        i += 1
        btn3 = Button(self, text="边缘增强",
                      bg=bcolor, fg=fcolor,
                      bitmap=UI.viewBmp, compound='left',
                      width=w, height=h,
                      font=f,
                      command=lambda:self.addFilter(ImageFilter.EDGE_ENHANCE))
        btn3.place(x=fx, y=fy+i*dy)
        
        i += 1
        btn3 = Button(self, text="找到边缘",
                      bg=bcolor, fg=fcolor,
                      bitmap=UI.viewBmp, compound='left',
                      width=w, height=h,
                      font=f,
                      command=lambda:self.addFilter(ImageFilter.FIND_EDGES))
        btn3.place(x=fx, y=fy+i*dy)
        
        i += 1
        btn3 = Button(self, text="浮雕",
                      bg=bcolor, fg=fcolor,
                      bitmap=UI.viewBmp, compound='left',
                      width=w, height=h,
                      font=f,
                      command=lambda:self.addFilter(ImageFilter.EMBOSS))
        btn3.place(x=fx, y=fy+i*dy)
        
        i += 1
        btn3 = Button(self, text="轮廓",
                      bg=bcolor, fg=fcolor,
                      bitmap=UI.viewBmp, compound='left',
                      width=w, height=h,
                      font=f,
                      command=lambda:self.addFilter(ImageFilter.CONTOUR))
        btn3.place(x=fx, y=fy+i*dy)
        
        i += 1
        btn3 = Button(self, text="锐化",
                      bg=bcolor, fg=fcolor,
                      bitmap=UI.viewBmp, compound='left',
                      width=w, height=h,
                      font=f,
                      command=lambda:self.addFilter(ImageFilter.SHARPEN))
        btn3.place(x=fx, y=fy+i*dy)
        
        i += 1
        btn3 = Button(self, text="平滑",
                      bg=bcolor, fg=fcolor,
                      bitmap=UI.viewBmp, compound='left',
                      width=w, height=h,
                      font=f,
                      command=lambda:self.addFilter(ImageFilter.SMOOTH))
        btn3.place(x=fx, y=fy+i*dy)
        
        i += 1
        btn3 = Button(self, text="细节",
                      bg=bcolor, fg=fcolor,
                      bitmap=UI.viewBmp, compound='left',
                      width=w, height=h,
                      font=f,
                      command=lambda:self.addFilter(ImageFilter.DETAIL))
        btn3.place(x=fx, y=fy+i*dy)
        
        
    def addFilter(self, f):
        """
            添加滤镜 f
        """
        img = self.canv.img.filter(f)
        self.canv.refresh(img)
    
#