reorder functions
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huepaper.py
112
huepaper.py
@ -4,39 +4,8 @@ import argparse
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import os.path
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import random
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import sys
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from PIL import Image, ImageDraw, ImageOps
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from colour import Color
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# Create base image from four colors, width and height
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# c1 - top left
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# c2 - top right
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# c3 - bottom right
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# c4 - bottom left
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def create_base_image(c1, c2, c3, c4):
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# Lambda for adding four colors
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add = lambda c1, c2, c3, c4 : (c1[0] + c2[0] + c3[0] + c4[0], c1[1] + c2[1] + c3[1] + c4[1], c1[2] + c2[2] + c3[2] + c4[2])
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# Lambda for multiplying a color with a factor
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mul = lambda c, x : (c[0] * x, c[1] * x, c[2] * x)
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# Lambda for scaling a color from [0 , 1] to [0, 255]
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cor = lambda c : (int(c[0] * 255), int(c[1] * 255), int(c[2] * 255))
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# Lambda for calculating a color at x and y in range [0, 1]
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# Color limits are set at creation
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col = lambda x, y, c1 = c1, c2 = c2, c3 = c3, c4 = c4 : cor(add(mul(c1, (1.0 - x) * (1.0 - y)), mul(c2, x * (1.0 - y)), mul(c3, x * y), mul(c4, (1.0 - x) * y)))
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# Create image
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imgage = Image.new('RGBA', (width, height))
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pixels = imgage.load()
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for x in range(0, width):
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for y in range(0, height):
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pixels[x, y] = col(x / (width - 1), y / (height - 1))
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return imgage
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from PIL import Image, ImageDraw, ImageOps
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# Get base color
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@ -88,24 +57,33 @@ def create_colors(base_color):
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return tuple(colors)
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# Add emblem to an image from a filepath
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def add_emblem(image, filepath):
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# Create base image from four colors, width and height
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# c1 - top left
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# c2 - top right
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# c3 - bottom right
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# c4 - bottom left
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def create_base_image(c1, c2, c3, c4):
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# Load image
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try:
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emblem_image = Image.open(filepath)
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except Exception as e:
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print('Failed to load emblem: {}'.format(e))
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sys.exit(1)
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# Lambda for adding four colors
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add = lambda c1, c2, c3, c4 : (c1[0] + c2[0] + c3[0] + c4[0], c1[1] + c2[1] + c3[1] + c4[1], c1[2] + c2[2] + c3[2] + c4[2])
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# Exit if emblem is too big
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if emblem_image.size[0] > width or emblem_image.size[1] > height:
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print('Emblem can\'t be bigger than the wallpaper')
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sys.exit(1)
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# Lambda for multiplying a color with a factor
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mul = lambda c, x : (c[0] * x, c[1] * x, c[2] * x)
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# Insert emblem in the center
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offset = ((image.size[0] - emblem_image.size[0]) // 2, (image.size[1] - emblem_image.size[1]) // 2)
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image.alpha_composite(emblem_image, offset)
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# Lambda for scaling a color from [0 , 1] to [0, 255]
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cor = lambda c : (int(c[0] * 255), int(c[1] * 255), int(c[2] * 255))
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# Lambda for calculating a color at x and y in range [0, 1]
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# Color limits are set at creation
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col = lambda x, y, c1 = c1, c2 = c2, c3 = c3, c4 = c4 : cor(add(mul(c1, (1.0 - x) * (1.0 - y)), mul(c2, x * (1.0 - y)), mul(c3, x * y), mul(c4, (1.0 - x) * y)))
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# Create image
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image = Image.new('RGBA', (width, height))
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pixels = image.load()
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for x in range(0, width):
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for y in range(0, height):
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pixels[x, y] = col(x / (width - 1), y / (height - 1))
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return image
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@ -113,7 +91,6 @@ def add_emblem(image, filepath):
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# Add lines to an image
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def add_lines(image, color):
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line_image = Image.new('RGBA', (width, height), (0, 0, 0, 0))
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draw = ImageDraw.Draw(line_image)
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@ -153,6 +130,28 @@ def add_pixelation(image, x, y):
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return image
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# Add emblem to an image from a filepath
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def add_emblem(image, filepath):
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# Load image
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try:
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emblem_image = Image.open(filepath)
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except Exception as e:
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print('Failed to load emblem: {}'.format(e))
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sys.exit(1)
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# Exit if emblem is too big
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if emblem_image.size[0] > width or emblem_image.size[1] > height:
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print('Emblem can\'t be bigger than the wallpaper')
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sys.exit(1)
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# Insert emblem in the center
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offset = ((image.size[0] - emblem_image.size[0]) // 2, (image.size[1] - emblem_image.size[1]) // 2)
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image.alpha_composite(emblem_image, offset)
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return image
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# Save image to filepath
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def save_image(filepath, image):
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@ -165,10 +164,19 @@ def save_image(filepath, image):
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save = False
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if save:
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stop = False
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while not stop:
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try:
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image.save(filepath)
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stop = True
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except Exception as e:
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print('Failed to save wallpaper: {}'.format(e))
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again = input('Do you want to try again? [Y/n] ')
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if again == 'n' or again == 'N':
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stop = True
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else:
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filepath = input('Please enter new path where the wallpaper shall be saved: ')
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'''
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@ -189,8 +197,8 @@ def main():
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parser.add_argument('-l', '--lines', nargs = '?', const = 0.1, type = float, help = 'include one to three random lines in base color with given opacity in range [0, 1] (default: 0.1)')
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parser.add_argument('-lb', '--lines_bright', nargs = '?', const = 0.1, type = float, help = 'include one to three bright random lines with given opacity in range [0, 1] (default: 0.1)')
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parser.add_argument('-ld', '--lines_dark', nargs = '?', const = 0.1, type = float, help = 'include one to three dark random lines with given opacity in range [0, 1] (default: 0.1)')
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parser.add_argument('-e', '--emblem', help = 'emblem to add in the center of the wallpaper')
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parser.add_argument('-P', '--pixelate', help = "pixelate image (e.g. 42x42)")
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parser.add_argument('-e', '--emblem', help = 'emblem to add in the center of the wallpaper')
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parser.add_argument('-hue', default = 0.1, type = float, help = 'maximum hue to differ from given color in range [0, 1] (default: 0.1)')
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parser.add_argument('-smin', default = 0.2, type = float, help = 'minimum satisfaction for colors in range [0, 1] (default: 0.2)')
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parser.add_argument('-smax', default = 1.0, type = float, help = 'maximum satisfaction for colors in range [0, 1] (default: 1.0)')
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@ -238,12 +246,12 @@ def main():
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if lines_dark:
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image = add_lines(image, (0.0, 0.0, 0.0, lines_dark))
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if emblem:
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image = add_emblem(image, emblem)
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if pixelate:
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image = add_pixelation(image, px, py)
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if emblem:
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image = add_emblem(image, emblem)
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if preview:
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image.show()
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if not output:
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