import os

from tkinter import filedialog, Tk

from PIL import Image, ImageTk, ImageSequence

import tkinter

from win32com.shell import shell, shellcon

#####################

# 第一个完备的图片浏览器

#####################

def 删除文件(filename):

    # 删除文件，经过回收站

    shell.SHFileOperation((0, shellcon.FO_DELETE, filename, None,

                           shellcon.FOF_SILENT | shellcon.FOF_ALLOWUNDO | shellcon.FOF_NOCONFIRMATION, None,

                           None))  # 删除文件到回收站

testpath = r"C:\Users\Administrator\Desktop\测试文件夹"

class Application():

    def __init__(self, root):

        self.root = root

        self.img = None

        self.createLable()  # 建立Lable对象

        # self.files = self.载入路径文件列表(testpath)

        self.files = self.载入路径文件列表()

        # [{name:"",path="",tag=False}]

        self.index = 0

        self.显示图片()

    def 显示图片(self):

        # 这里开始载入文件

        path = self.files[self.index]

        self.当前图片 = path

        if path[-3:] in {"GIF", "gif"}:

            self.显示动图(path)

        else:

            self.显示单个图片(path)

    def 显示单个图片(self, path):

        # 单图片

        image = Image.open(path)

        width, height = self.auto_scale(image)

        pic_image = image.resize((width, height), Image.ANTIALIAS)

        self.img = ImageTk.PhotoImage(image=pic_image)

        # self.img 当前图片的文件对象

        # 载入文件结束

        self.pic_lable['image'] = self.img

    def 显示动图(self, path):

        self.帧列表 = list(map(ImageTk.PhotoImage, ImageSequence.Iterator(Image.open(path))))

        self.帧位 = 0

        self.帧总数 = len(self.帧列表)

        self.动图路径 = path

        self.显示帧()

    def 显示帧(self):

        if self.当前图片 != self.动图路径:

            return

        self.pic_lable['image'] = self.帧列表[self.帧位]

        self.帧位 = (self.帧位 + 1) % self.帧总数

        self.pic_lable.after(100, self.显示帧)

    def auto_scale(self, pic_image):

        """自动缩放"""

        width, height = pic_image.size  # 获取图片的width height

        org_rate = width / height

        if width > height * (1080 / 720):

            # 宽缩放

            rate = 1

            while True:

                scale_width = width * rate

                if scale_width <= 1080:

                    break

                rate -= 0.1

            scale_height = scale_width / org_rate

            return int(scale_width), int(scale_height)

        else:

            # 高缩放

            rate = 1

            while True:

                scale_height = height * rate

                if scale_height <= 720:

                    break

                rate -= 0.1

            scale_width = scale_height * org_rate

            return int(scale_width), int(scale_height)

    def createLable(self):

        self.pic_lable = tkinter.Label(self.root, width=1080, height=720)

        self.pic_lable.focus_set()

        self.pic_lable['image'] = self.img

        self.pic_lable.pack()

    def 载入路径文件列表(self, path=None):

        if not path:

            path = filedialog.askdirectory()

            self.root.focus_force()  # 返回焦点

        pic_list = [''.join([path, '/', img]) for img in os.listdir(path)]

        return pic_list

    def prev(self):

        self.show_file(-1)

    def next(self):

        self.show_file(1)

    def show_file(self, n):

        self.index += n

        if self.index < 0:

            self.index = len(self.files) - 1

        if self.index > (len(self.files) - 1):

            self.index = 0

        self.显示图片()

    def 删除当前图片(self):

        文件路径 = self.files[self.index]

        删除文件(文件路径)

        self.files.pop(self.index)

        self.show_file(0)

        # self.显示图片()

def 滚动处理(event):

    if event.delta > 0:

        app.prev()

    else:

        app.next()

def 按键(event):

    if event.keycode == 37:

        app.prev()

    elif event.keycode == 39:

        app.next()

    elif event.keycode == 46:

        # 这是删除键的

        app.删除当前图片()

root = Tk()

root.title('图片浏览器')

root.geometry("1080x720")

root['bg'] = '#333333'

root.resizable(False, False)

app = Application(root)

root.bind_all("<MouseWheel>", 滚动处理)

root.bind_all("<Key>", 按键)

# 左右的两个按钮1

btnPrev = tkinter.Button(root, text="  <  ", command=app.prev)

btnPrev.place(x=-10, y=360)

# type()function  None

# 左右的两个按钮2

btnNext = tkinter.Button(root, text="  >  ", command=app.next)

btnNext.place(x=1050, y=360)

# 左右的两个按钮2

delbtn = tkinter.Button(root, text=" 删除图片 ", command=app.删除当前图片)

delbtn.place(relx=1.0, rely=1.0,anchor=tkinter.SE)

root.mainloop()