我正在使用tkinter和PIL制作基本的照片查看器（主要用于学习目的）。我已经制作了用于放大，缩小，旋转（向左和向右）和移动（向上，向下，向左向右）的按钮。我正在使用标签显示图像。标签必须重新缩放并移动以适合放大图像时的图像。我当前的问题是，由于某种原因，在放大或缩小时，我会在错误的位置获得瞬间的图像闪光。这是它的一些图片：
编辑：我想出了格式。这是我的整个脚本：
import tkinter as tk
from tkinter import ttk
from tkinter import filedialog
import PIL
from PIL import Image, ImageTk, ImageChops
import os
class PhotoApp:
def __init__(self):
#Make window
self.mainwindow = tk.Tk()
#Centers Window To Screen
self.screenwidth = self.mainwindow.winfo_screenwidth()
self.screenheight = self.mainwindow.winfo_screenheight()
self.place_width = str(int(self.screenwidth / 2 - 400))
self.place_height = str(int(self.screenheight / 2 - 329))
self.mainwindow.geometry("+" + self.place_width + "+" + self.place_height)
#Initial Window Setup
self.mainwindow.title("Photo Viewer")
self.mainwindow.iconbitmap("unitato.ico")
self.mainwindow.resizable(width=False, height=False)
#Variable Declaration
self.avariable = 1
self.photoindex = 0
self.currentphoto = ""
self.photofactor = 0
self.currentphotopath = ""
self.currentphotoready = ""
self.folderpath = ""
self.lastfolderpath = ""
self.photopath = ""
self.photolist = []
self.listspot = 0
self.cwd = "C:/Users/Aaron/Pictures"
self.rememberme = False
self.displayatx = 0
self.displayaty = 0
self.mouseup = True
self.currentrotation = 0
self.thecolor = self.colorcheck()
self.zoomlevel = 0
#Widget Layout
self.setup()
#Key Bindings
self.mainwindow.bind("<Up>", self.moveup)
#Initiates Main Loop
self.mainwindow.mainloop()
def setup(self):
print("Setup Begin")
b_border = 10
self.frame1 = tk.Frame(self.mainwindow)
self.frame1.pack(side=tk.TOP)
self.frame2 = tk.Frame(self.mainwindow)
self.frame2.pack(side=tk.TOP)
self.leftframe = tk.Frame(self.frame1, height=600, width=100,
bd=5, relief=tk.GROOVE)
self.leftframe.pack(side=tk.LEFT)
self.leftframe.pack_propagate(0)
self.rotaterightbutton = tk.Button(self.leftframe, text="Rotate ->",
font=("Arial", 12), command=self.rotateright)
self.rotaterightbutton.pack(side=tk.TOP, pady=10, fill=tk.X)
self.rotateleftbutton = tk.Button(self.leftframe, text="<- Rotate",
font=("Arial", 12), command=self.rotateleft)
self.rotateleftbutton.pack(side=tk.TOP, pady=10, fill=tk.X)
self.photoframe = tk.Frame(self.frame1, width=600, height=600)
self.photoframe.pack(side=tk.LEFT)
self.photoframe.pack_propagate(0)
self.rightframe = tk.Frame(self.frame1, height=600, width=100,
bd=5, relief=tk.GROOVE)
self.rightframe.pack(side=tk.LEFT)
self.rightframe.pack_propagate(0)
self.wipbutton = tk.Button(self.rightframe, text="WIP",
font=("Arial", 14), command=self.whatwip)
self.wipbutton.pack(side=tk.TOP, pady=10, fill=tk.X)
self.leftbutton = tk.Button(self.rightframe, text="[Left]",
font=("Arial", 14), command=self.moveleft)
self.leftbutton.pack(side=tk.TOP, pady=10, fill=tk.X)
self.rightbutton = tk.Button(self.rightframe, text="[Right]",
font=("Arial", 14), command=self.moveright)
self.rightbutton.pack(side=tk.TOP, pady=10, fill=tk.X)
self.upbutton = tk.Button(self.rightframe, text="[Up]",
font=("Arial", 14))#, command=self.moveup)
self.upbutton.pack(side=tk.TOP, pady=10, fill=tk.X)
self.upbutton.bind("<ButtonPress-1>", self.moveup)
self.downbutton = tk.Button(self.rightframe, text="[Down]",
font=("Arial", 14), command=self.movedown)
self.downbutton.pack(side=tk.TOP, pady=10, fill=tk.X)
self.photodisplay = tk.Label(self.photoframe, text="No Photo To Display",
font=("Arial", 14))
self.photodisplay.place(x=self.zoomsizing_frame()[2],
y=self.zoomsizing_frame()[3],
width=1000, height=1000)
self.bottomframe = tk.Frame(self.frame2, width=600, height=100, bd=5,
relief=tk.GROOVE)
self.bottomframe.pack(side=tk.TOP)
self.photoframe.pack_propagate(0)
self.previousbutton = tk.Button(self.bottomframe, text="Previous",
font=("Arial", 14), width=10,
command=self.previous)
self.previousbutton.pack(side=tk.LEFT, anchor=tk.W,
padx=b_border)
self.zoomout = tk.Button(self.bottomframe, text="(-)",
font=("Arial", 18), command=self.zoomout)
self.zoomout.pack(side=tk.LEFT, padx=b_border)
self.folderbutton = tk.Button(self.bottomframe, text="Folder Select",
font=("Arial", 14), width=15, command=self.folderselect)
self.folderbutton.pack(side=tk.LEFT, padx=b_border)
self.zoomin = tk.Button(self.bottomframe, text="(+)",
font=("Arial", 18), command=self.zoomin)
self.zoomin.pack(side=tk.LEFT, padx=b_border)
self.nextbutton = tk.Button(self.bottomframe, text="Next", font=(
"Arial", 14), width=10, command=self.next)
self.nextbutton.pack(side=tk.LEFT, padx=b_border)
print("Setup End")
def colorcheck(self):
color16 = self.mainwindow.winfo_rgb("systembuttonface")
color8List = []
for value in color16:
newvalue = value / 256
newvalue = int(newvalue)
color8List.append(newvalue)
print(value, newvalue, "\n", color8List)
rgbtuple = tuple(color8List)
return(rgbtuple)
def zoomsizing_photo(self):
resolution = [600, 600]
if self.zoomlevel == 0:
resolution = [600, 600]
elif self.zoomlevel == 1:
resolution = [1200, 1200]
elif self.zoomlevel == -1:
resolution = [300, 300]
else:
resolution = [600, 600]
return resolution
def zoomsizing_frame(self):
resandplace = [1000, 1000, -200, -200]
if self.zoomlevel == 0:
resolution = [1000, 1000, -200, -200]
elif self.zoomlevel == 1:
resolution = [2000, 2000, -700, -700]
elif self.zoomlevel == -1:
resolution = [500, 500, 50, 50]
else:
resolution = [1000, 1000, -200, -200]
return resolution
def zoomin(self):
self.zoomlevel = self.zoomlevel + 1
self.reloadphoto()
print(self.zoomlevel)
def zoomout(self):
self.zoomlevel = self.zoomlevel - 1
self.reloadphoto()
print(self.zoomlevel)
def next(self):
print("Next Begin")
self.displayatx = 0
self.displayaty = 0
self.zoomlevel = 0
self.currentrotation = 0
if self.currentphoto != None:
self.currentphoto.close()
self.currentphoto = None
if self.photoindex < len(self.photolist) - 1:
self.photoindex = self.photoindex + 1
else:
self.photoindex = 0
self.reloadphoto()
print("Next End")
def previous(self):
print("Previous Begin")
self.displayatx = 0
self.displayaty = 0
self.zoomlevel = 0
self.currentrotation = 0
if self.currentphoto != None:
self.currentphoto.close()
self.currentphoto = None
if self.photoindex == 0:
self.photoindex = len(self.photolist) - 1
else:
self.photoindex = self.photoindex - 1
self.reloadphoto()
print("Previous End")
def folderselect(self):
print("Folder Select Begin")
self.folderpath = filedialog.askdirectory(parent=self.mainwindow,
initialdir=self.cwd,
title="Choose A Folder To View Photos In.")
if self.folderpath != "":
self.lastfolderpath = self.folderpath
self.rememberme = False
else:
self.lastfolderpath = self.lastfolderpath
self.folderpath = self.lastfolderpath
self.rememberme = True
print(self.folderpath)
if self.folderpath != "" and self.rememberme == False:
print("Mark 1")
self.photolist = []
self.photoindex = 0
self.displayatx = 0
self.displayaty = 0
self.currentphotoready = None
self.cwd = self.folderpath
for name in os.listdir(self.folderpath):
if name.lower().endswith(".jpg") or name.lower().endswith(".png") or name.lower().endswith("tiff") or name.lower().endswith(".gif"):
self.photolist.append(name)
#print(self.photolist)
if self.photolist != []:
self.reloadphoto()
else:
self.photodisplay["image"]=""
self.photodisplay["text"]="No photos in this folder."
print(self.photodisplay["text"], self.photodisplay["image"])
else:
self.folderpath = self.lastfolderpath
if self.photolist != []:
self.reloadphoto()
else:
self.photodisplay["image"]=""
self.photodisplay["text"]="No photos in this folder."
print(self.photodisplay["text"], self.photodisplay["image"])
print("Folder Select End")
def loadphoto(self):
print("Load Photo Begin")
print(self.photoindex)
self.photodisplay["image"]=""
self.currentphotoready = ""
name = self.photolist[self.photoindex]
if name.lower().endswith(".gif"):
self.gifplayback()
else:
if self.folderpath != "":
self.currentphotopath = self.folderpath + "/" + str(self.photolist[self.photoindex])
self.currentphoto = Image.open(self.currentphotopath)
print("Load Photo End")
def reloadphoto(self):
self.loadphoto()
self.photoscale()
self.photorotate()
self.displayphoto()
def displayphoto(self):
print("Display Photo Begin")
self.photodisplay.place(width=self.zoomsizing_frame()[0], height=self.zoomsizing_frame()[1],
x=self.zoomsizing_frame()[2] + self.displayatx,
y=self.zoomsizing_frame()[3] + self.displayaty)
self.currentphotoready = ImageTk.PhotoImage(self.currentphoto)
self.photodisplay.config(image=self.currentphotoready)
print("Display Photo End")
def photoscale(self):
print("Photo Scale Begin")
print(self.currentphoto.width, self.currentphoto.height)
if self.currentphoto.width > self.currentphoto.height:
self.photofactor = self.currentphoto.width / self.zoomsizing_photo()[0]
else:
self.photofactor = self.currentphoto.height / self.zoomsizing_photo()[1]
#self.currentphoto = self.currentphoto.resize((int(self.currentphoto.width / self.photofactor),
#int(self.currentphoto.height / self.photofactor)), resample=0)
self.currentphoto.thumbnail((int(self.currentphoto.width / self.photofactor),
int(self.currentphoto.height / self.photofactor)), Image.ANTIALIAS)
print(self.currentphoto.width, self.currentphoto.height)
print("Photo Scale End")
def photorotate(self):
self.currentphoto = self.currentphoto.rotate(self.currentrotation, expand=True,
fillcolor=self.thecolor)
def gifplayback(self):
if self.currentphoto != "":
self.currentphoto.close()
self.photodisplay["image"]=""
self.photodisplay["text"]="Gif playback is not yet implemented. \n Please come back later.\n =)"
def whatwip(self):
if self.currentphoto != "":
self.currentphoto.close()
self.photodisplay["image"]=""
self.photodisplay["text"]=("""Gif playback \n \n Image rotation \n \n Slideshow mode \n \n Image Too Large Error (or ignore)
\n Zoom In \n \n Zoom Out \n \n Move Image With Mouse
\n Hold Down Mouse For Move""")
def moveleft(self):
print("moveleft")
if self.currentphoto != "":
self.displayatx = self.displayatx + 10
self.reloadphoto()
def moveright(self):
print("moveright")
if self.currentphoto != "":
self.displayatx = self.displayatx - 10
self.reloadphoto()
def moveup(self, key):
print("moveup")
if self.currentphoto != "":
self.displayaty = self.displayaty + 10
self.reloadphoto()
def movedown(self):
print("movedown")
if self.currentphoto != "":
self.displayaty = self.displayaty - 10
self.reloadphoto()
def rotateleft(self):
print("Rotate left")
if self.currentphoto != "":
self.currentrotation = self.currentrotation + 10
self.reloadphoto()
def rotateright(self):
print("Rotate right")
if self.currentphoto != "":
self.currentrotation = self.currentrotation - 10
self.reloadphoto()
def main():
program = PhotoApp()
if __name__ == "__main__":
main()
答案 0 :(得分：0)
弄乱了一些内容之后，我发现了一个解决方法。每次不破坏并重新创建标签，而不是更新标签上的图像并移动标签。它可以工作，但是似乎不是最优的，尽管它比以前慢了一点。