可以打开和关闭图像的Python模块
可以打开和关闭图像的Python模块
提问于 2019-10-09 00:07:15
我已经尝试过PIL、Matplotlib和pygame，它们都可以轻松地在一个新窗口中打开一个图像，但是它要么不能通过命令关闭，要么--在pygame的情况下--不能用新的图像重新打开。有什么模块可以做到这一点吗？
下面是代码的一个示例：
#this just waits for input from the user to continue
def pause():
ps = input("\n[Press 'Enter' to continue]\n")
image = eval(unit).image
#yes, I know eval is bad but shhhhh, it works
#the main function
def function(foo):
#Code displays information, nothing that should cause problems
something.display(image.png)
#line or several lines of code to hide image()
page(pg)有可能发生这种事吗？唯一的要求是，无论打开什么窗口来显示窗口，都可以关闭，然后用不同的图像重新打开。
回答 1
Stack Overflow用户
回答已采纳
发布于 2019-10-09 01:10:00
在Linux上使用新映像重新打开PyGame窗口没有问题，但可能取决于系统。(顺便说一句:有些系统可能需要让事件显示窗口)
import pygame
import time
#pygame.init()
def imshow(filename):
#pygame.init()
img = pygame.image.load(filename)
size = img.get_rect().size
screen = pygame.display.set_mode(size)
screen.blit(img, (0, 0))
pygame.display.flip()
#pygame.event.clear()
def imclose():
#pygame.quit()
pygame.display.quit()
imshow('image1.jpg')
time.sleep(3)
imclose()
imshow('image2.png')
time.sleep(3)
imclose()编辑：我在matplotlib中做同样的事情没有问题
import matplotlib.pyplot as plt
img = plt.imread('image1.jpg')
plt.imshow(img)
plt.pause(3)
plt.close()
img = plt.imread('image2.png')
plt.imshow(img)
plt.pause(3)
plt.close()编辑：游戏版本，关闭窗口按下键Enter/Return (或使用按钮[X])。
但是它阻止了其他代码，它必须等到你关闭窗口。
import pygame
#pygame.init()
def imshow(filename):
#pygame.init()
img = pygame.image.load(filename)
size = img.get_rect().size
screen = pygame.display.set_mode(size)
screen.blit(img, (0, 0))
pygame.display.flip()
running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT: # close by button [X]
running = False
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_RETURN:
running = False
pygame.display.quit()
#pygame.quit()
imshow('image1.jpg')
imshow('image2.png')要显示Enter可以关闭的窗口，同时运行其他命令，则必须在线程中运行PyGame。
这段代码在线程中运行PyGame，您可以使用Enter/Return关闭它。如果您不关闭它，那么在其他几个命令(由imclose()模拟)之后，代码将使用sleep()关闭它。
import pygame
import threading
import time
def window(filename):
global running
running = True
#pygame.init()
img = pygame.image.load(filename)
size = img.get_rect().size
screen = pygame.display.set_mode(size)
screen.blit(img, (0, 0))
pygame.display.flip()
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT: # close by button [X]
running = False
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_RETURN: # close by ENTER
running = False
pygame.display.quit()
#pygame.quit()
def imshow(filename):
threading.Thread(target=window, args=(filename,)).start()
def imclose():
global running
running = False
# ----------------------------------------------------------------------------
imshow('image1.jpg')
# emulate other commands
for x in range(3):
print('1. other command ...', x)
time.sleep(1)
imclose() # close by command
# emulate other commands
for x in range(3):
print('2. other command ...', x)
time.sleep(1)
imshow('image2.jpg')
# emulate other commands
for x in range(3):
print('3. other command ...', x)
time.sleep(1) # emulate other code
imclose() # close by command使用Tkinter的类似代码
import tkinter as tk
from PIL import Image, ImageTk
import threading
import time
def window(filename):
global running
running = True
def on_press(event):
global running
running = False
root = tk.Tk()
photo = ImageTk.PhotoImage(Image.open(filename))
label = tk.Label(root, image=photo)
label.photo = photo
label.pack()
root.bind('<Return>', on_press) # close by ENTER
#root.mainloop()
while running:
root.update()
root.destroy()
def imshow(filename):
threading.Thread(target=window, args=(filename,)).start()
def imclose():
global running
running = False
# ----------------------------------------------------------------------------
imshow('image1.jpg')
# emulate other commands
for x in range(3):
print('1. other command ...', x)
time.sleep(1)
imclose() # close by command
# emulate other commands
for x in range(3):
print('2. other command ...', x)
time.sleep(1)
imshow('image2.jpg')
# emulate other commands
for x in range(3):
print('3. other command ...', x)
time.sleep(1) # emulate other code
imclose() # close by command页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/58295441
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