[python]tkinter简易的图片浏览器

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()