使用我在网上找到的一些修改后的代码来创建一个普通的Tkinter启动画面,我试图用.png创建一个透明的启动画面。我知道这个代码只能在Windows上工作,我很好。如何在Tkinter的透明闪屏中停止闪烁?
但是,我注意到当它在屏幕上绘制时,图像闪烁(画布区域在绘制图像之前是黑色的)。我对此不甚了解,但我怀疑在Google和Google阅读之后,必须对图像进行缓冲处理。我还看到,画布支持双缓冲,所以闪烁不应该发生,所以也许它是顶层部件或其他东西。
在任何情况下,是否有任何修复?我真的很想继续使用Tkinter,这将是一个巨大的失望,不能摆脱闪烁。以下是我在下面使用的代码。
from Tkinter import *
import ttk
from PIL import Image, ImageTk
import time
class Splash:
def __init__(self, root, filename, wait):
self.__root = root
#To use .pngs or .jpgs instead of just .bmps and .gifs, PIL is needed
self.__file = ImageTk.PhotoImage(Image.open(filename))
self.__wait = wait + time.clock()
def __enter__(self):
# Hide the root while it is built.
self.__root.withdraw()
# Create components of splash screen.
window = Toplevel(self.__root)
#Set splash window bg to transparent
window.attributes('-transparent', '#FFFFFE')
#Set canvas bg to transparent
canvas = Canvas(window,bg="#FFFFFE")
splash = self.__file
# Get the screen's width and height.
scrW = window.winfo_screenwidth()
scrH = window.winfo_screenheight()
# Get the images's width and height.
imgW = splash.width()
imgH = splash.height()
# Compute positioning for splash screen.
Xpos = (scrW - imgW) // 2
Ypos = (scrH - imgH) // 2
# Configure the window showing the logo.
window.overrideredirect(True)
window.geometry('+{}+{}'.format(Xpos, Ypos))
# Setup canvas on which image is drawn.
canvas.configure(width=imgW, height=imgH, highlightthickness=0)
canvas.pack()
# Show the splash screen on the monitor.
canvas.create_image(imgW // 2, imgH // 2, image=splash)
window.update()
# Save the variables for later cleanup.
self.__window = window
self.__canvas = canvas
self.__splash = splash
def __exit__(self, exc_type, exc_val, exc_tb):
# Ensure that required time has passed.
now = time.clock()
if now < self.__wait:
time.sleep(self.__wait - now)
# Free used resources in reverse order.
del self.__splash
self.__canvas.destroy()
self.__window.destroy()
# Give control back to the root program.
self.__root.update_idletasks()
self.__root.deiconify()
if __name__ == '__main__':
#thread2 = myLazyDoStuffThread()
root = Tk()
with Splash(root,'splash.png',3):
myprog = ApplyGUIAndOtherThings(root)#,thread2)
root.mainloop()
'-transparent'不适用于我,但'-alpha'可以。 – User