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41 lines
1.2 KiB
Python
41 lines
1.2 KiB
Python
#!/usr/bin/env python
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import time
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from samplebase import SampleBase
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from PIL import Image
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class ImageScroller(SampleBase):
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def __init__(self, *args, **kwargs):
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super(ImageScroller, self).__init__(*args, **kwargs)
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self.parser.add_argument("-i", "--image", help="The image to display", default="../../../examples-api-use/runtext.ppm")
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def run(self):
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if not 'image' in self.__dict__:
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self.image = Image.open(self.args.image).convert('RGB')
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self.image.resize((self.matrix.width, self.matrix.height), Image.ANTIALIAS)
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double_buffer = self.matrix.CreateFrameCanvas()
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img_width, img_height = self.image.size
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# let's scroll
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xpos = 0
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while True:
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xpos += 1
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if (xpos > img_width):
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xpos = 0
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double_buffer.SetImage(self.image, -xpos)
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double_buffer.SetImage(self.image, -xpos + img_width)
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double_buffer = self.matrix.SwapOnVSync(double_buffer)
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time.sleep(0.01)
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# Main function
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# e.g. call with
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# sudo ./image-scroller.py --chain=4
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# if you have a chain of four
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if __name__ == "__main__":
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image_scroller = ImageScroller()
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if (not image_scroller.process()):
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image_scroller.print_help()
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