我目前想使用一段名为 python slideshow with time and weather (github) 的旧 Python 代码。我正在使用 Raspberry Pi，我已经完成了所有设置，并且它在横向（正常）模式下完美运行。这是一个幻灯片应用程序，它具有在 Pygame 上开发的天气和时间叠加层。
我想纵向使用该应用程序，但是当我使用 display_rotate=1（或 3）在 /boot/config.txt 中旋转我的屏幕并重新启动幻灯片时，一切似乎都正常，天气覆盖出现在左下角/它应该是正确的，但是一旦天气或时钟或日期的任何部分更新，它就会在自身上打印文本。
有没有人知道可能导致这种行为的原因？我在代码中看不到任何内容。这是下面来自 Git 的 python 文件，我附上了奇怪行为的屏幕截图[在这种情况下显示时钟中的文本覆盖问题的图像][1]： github 上带有时间和天气的 Python 幻灯片
#!/usr/bin/env python
"""
A pygame program to show a slideshow of all images buried in a given directory.
Originally Released: 2007.10.31 (Happy halloween!)
"""
from __future__ import division
import argparse
import os
import stat
import sys
import time
import datetime
import pygame
from pygame.locals import QUIT, KEYDOWN, K_ESCAPE
#weather
import pyowm
file_list = [] # a list of all images being shown
title = "pgSlideShow | My Slideshow!" # caption of the window...
waittime = 5 # default time to wait between images (in seconds)
def walktree(top, callback):
"""recursively descend the directory tree rooted at top, calling the
callback function for each regular file. Taken from the module-stat
example at: http://docs.python.org/lib/module-stat.html
"""
for f in os.listdir(top):
pathname = os.path.join(top, f)
mode = os.stat(pathname)[stat.ST_MODE]
if stat.S_ISDIR(mode):
# It's a directory, recurse into it
walktree(pathname, callback)
elif stat.S_ISREG(mode):
# It's a file, call the callback function
callback(pathname)
else:
# Unknown file type, print a message
print 'Skipping %s' % pathname
def addtolist(file, extensions=['.png', '.jpg', '.jpeg', '.gif', '.bmp']):
"""Add a file to a global list of image files."""
global file_list # ugh
filename, ext = os.path.splitext(file)
e = ext.lower()
# Only add common image types to the list.
if e in extensions:
print 'Adding to list: ', file
file_list.append(file)
else:
print 'Skipping: ', file, ' (NOT a supported image)'
def input(events):
"""A function to handle keyboard/mouse/device input events. """
for event in events: # Hit the ESC key to quit the slideshow.
if (event.type == QUIT or
(event.type == KEYDOWN and event.key == K_ESCAPE)):
pygame.quit()
def timeSince(lastTime,interval):
if (time.time() - lastTime)>=interval:
return True
else:
return False
def main(startdir="."):
global file_list, title, waittime
lastSwitch=time.time()
lastWeather=time.time()
owm = pyowm.OWM('4cc9ae1d116c7e70c145252ab605f260')
observation = owm.weather_at_place('Ottawa,CA')
w = observation.get_weather()
temperature=(w.get_temperature('celsius'))['temp']
status=w.get_status()
#print w
pygame.init()
# Test for image support
if not pygame.image.get_extended():
print "Your Pygame isn't built with extended image support."
print "It's likely this isn't going to work."
sys.exit(1)
walktree(startdir, addtolist) # this may take a while...
if len(file_list) == 0:
print "Sorry. No images found. Exiting."
sys.exit(1)
modes = pygame.display.list_modes()
print max(modes)
pygame.display.set_mode(max(modes))
screen = pygame.display.get_surface()
screen_width, screen_height= screen.get_size()
pygame.display.set_caption(title)
#pygame.display.toggle_fullscreen()
pygame.display.set_mode(max(modes),pygame.FULLSCREEN)
pygame.mouse.set_visible(0)
#create font
timeFont = pygame.font.Font("indulta/Indulta-SemiSerif-boldFFP.otf", 100)
dateFont = pygame.font.Font("indulta/Indulta-SemiSerif-boldFFP.otf", 60)
weatherFont = pygame.font.Font("indulta/Indulta-SemiSerif-boldFFP.otf", 60)
print str(waittime) +"wait time"
current = 0
num_files = len(file_list)
while(True):
try:
img = pygame.image.load(file_list[current])
img = img.convert()
tempX,tempY=img.get_size()
ratio =tempX/tempY
tempSize=(screen_width,int(screen_width/ratio))
print str(img.get_size())+" to "+ str(tempSize) +"and ratio: "+str(ratio)
# rescale the image to fit the current display
img = pygame.transform.scale(img, tempSize)
screen.blit(img, (0, 0))
#gets current weather
if timeSince(lastWeather,30):
observation = owm.weather_at_place('Ottawa,CA')
w = observation.get_weather()
temperature=(w.get_temperature('celsius'))['temp']
status=w.get_status()
print status
lastWeather=time.time()
print "updateing weather"
#gets the current time and displays it
timeText=datetime.datetime.now().strftime("%I:%M%p")
dateText=datetime.datetime.now().strftime("%B %d, %Y")
weatherText=str(int(temperature))+"`C "+status
timeLabel = timeFont.render(timeText, 1, (255,255,255))
dateLabel = dateFont.render(dateText, 1, (255,255,255))
weatherLabel = weatherFont.render(weatherText, 1, (255,255,255))
timeWidth, timeHeight= timeLabel.get_size()
dateWidth, dateHeight= dateLabel.get_size()
weatherWidth, weatherHeight= weatherLabel.get_size()
screen.blit(weatherLabel, (0, screen_height-weatherHeight))
screen.blit(timeLabel, (screen_width-timeWidth, screen_height-timeHeight-dateHeight))
screen.blit(dateLabel, (screen_width-dateWidth, screen_height-dateHeight))
pygame.display.flip()
input(pygame.event.get())
time.sleep(1/60)
except pygame.error as err:
print "Failed to display %s: %s" % (file_list[current], err)
sys.exit(1)
# When we get to the end, re-start at the beginning
if timeSince(lastSwitch,waittime):
current = (current + 1) % num_files;
lastSwitch=time.time()
if __name__ == '__main__':
parser = argparse.ArgumentParser(
description='Recursively loads images '
'from a directory, then displays them in a Slidshow.'
)
parser.add_argument(
'path',
metavar='ImagePath',
type=str,
default='.',
nargs="?",
help='Path to a directory that contains images'
)
parser.add_argument(
'--waittime',
type=int,
dest='waittime',
action='store',
default=1,
help='Amount of time to wait before showing the next image.'
)
parser.add_argument(
'--title',
type=str,
dest='title',
action='store',
default="pgSlidShow | My Slideshow!",
help='Set the title for the display window.'
)
args = parser.parse_args()
#waittime = args.waittime
title = args.title
main(startdir=args.path)