67 lines
2.0 KiB
Python
67 lines
2.0 KiB
Python
from picographics import PicoGraphics, DISPLAY_PICO_DISPLAY_2, PEN_P8
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import pngdec
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# Create a PicoGraphics instance
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display = PicoGraphics(display=DISPLAY_PICO_DISPLAY_2, pen_type=PEN_P8, rotate=270)
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# Get the display width/height so we can position the PNGs
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width, height = display.get_bounds()
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# Set the backlight so we can see it!
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display.set_backlight(1.0)
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# Create an instance of the PNG Decoder
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png = pngdec.PNG(display)
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# Create some pens for use later.
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BG = display.create_pen(200, 200, 200)
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# 16 Reds
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for i in range(16):
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display.create_pen(i * 16, 0, 0)
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# 16 Greens
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for i in range(16):
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display.create_pen(0, i * 16, 0)
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# 16 Blues
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for i in range(16):
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display.create_pen(0, 0, i * 16)
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# Adding in an white background colour at the beginning of each offset.
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for i in range(3):
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display.update_pen(i * 16, 200, 200, 200)
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# Clear the screen
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display.set_pen(BG)
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display.clear()
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try:
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# Open our PNG File from flash. In this example we're using an image of a cartoon pencil.
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# You can use Thonny to transfer PNG Images to your Pico.
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png.open_file("pencil_gray.png")
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# Horizontally/vertically center the three PNG Images.
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png_w = png.get_width()
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png_h = png.get_height()
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offset_x = (width - png_w * 2) // 2
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height_y = (height // 3)
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offset_y = (height_y - png_h * 2) // 2
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# Decode our PNG file and set the X and Y
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png.decode(offset_x, offset_y, scale=2, mode=pngdec.PNG_COPY, palette_offset=0)
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png.decode(offset_x, offset_y + height_y, scale=2, mode=pngdec.PNG_COPY, palette_offset=16)
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png.decode(offset_x, offset_y + (height_y * 2), scale=2, mode=pngdec.PNG_COPY, palette_offset=32)
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# Handle the error if the image doesn't exist on the flash.
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except OSError:
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print("Error: PNG File missing. Copy the PNG file from the example folder to your Pico using Thonny and run the example again.")
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display.update()
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# We're not doing anything else with the display now but we want to keep the program running!
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while True:
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pass
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