Adolfo Reyna
102 lines
3.9 KiB
Python
102 lines
3.9 KiB
Python
# Simple Vector (Stroke) Font Engine with THICKNESS support
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# Format: [x1,y1, x2,y2, x3,y3...] (-1 = Pen Lift)
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FONT = {
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'A': [0,10, 5,0, 10,10, -1,-1, 2,7, 8,7],
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'B': [0,10, 0,0, 7,0, 7,5, 0,5, -1,-1, 0,5, 8,5, 8,10, 0,10],
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'C': [10,2, 8,0, 2,0, 0,2, 0,8, 2,10, 8,10, 10,8],
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'D': [0,10, 0,0, 6,0, 9,3, 9,7, 6,10, 0,10],
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'E': [10,0, 0,0, 0,10, 10,10, -1,-1, 0,5, 8,5],
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'F': [0,10, 0,0, 9,0, -1,-1, 0,5, 8,5],
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'G': [10,2, 8,0, 2,0, 0,2, 0,8, 2,10, 8,10, 10,8, 10,5, 6,5],
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'H': [0,0, 0,10, -1,-1, 10,0, 10,10, -1,-1, 0,5, 10,5],
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'I': [5,0, 5,10, -1,-1, 2,0, 8,0, -1,-1, 2,10, 8,10],
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'J': [8,0, 8,8, 6,10, 2,10, 0,8],
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'K': [0,0, 0,10, -1,-1, 9,0, 0,5, 9,10],
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'L': [0,0, 0,10, 9,10],
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'M': [0,10, 0,0, 5,5, 10,0, 10,10],
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'N': [0,10, 0,0, 10,10, 10,0],
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'O': [5,0, 10,2, 10,8, 5,10, 0,8, 0,2, 5,0],
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'P': [0,10, 0,0, 8,0, 8,5, 0,5],
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'Q': [5,0, 10,2, 10,8, 5,10, 0,8, 0,2, 5,0, -1,-1, 6,6, 10,10],
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'R': [0,10, 0,0, 8,0, 8,5, 0,5, -1,-1, 4,5, 9,10],
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'S': [9,2, 5,0, 1,2, 1,4, 5,5, 9,6, 9,8, 5,10, 1,8],
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'T': [5,0, 5,10, -1,-1, 0,0, 10,0],
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'U': [0,0, 0,8, 2,10, 8,10, 10,8, 10,0],
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'V': [0,0, 5,10, 10,0],
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'W': [0,0, 2,10, 5,6, 8,10, 10,0],
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'X': [0,0, 10,10, -1,-1, 10,0, 0,10],
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'Y': [0,0, 5,5, 10,0, -1,-1, 5,5, 5,10],
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'Z': [0,0, 10,0, 0,10, 10,10],
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'0': [5,0, 10,2, 10,8, 5,10, 0,8, 0,2, 5,0, -1,-1, 0,10, 10,0],
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'1': [2,2, 5,0, 5,10, -1,-1, 2,10, 8,10],
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'2': [0,2, 5,0, 10,2, 10,5, 0,10, 10,10],
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'3': [0,2, 5,0, 10,2, 10,4, 6,5, 10,6, 10,8, 5,10, 0,8],
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'4': [7,10, 7,0, -1,-1, 0,0, 0,5, 10,5],
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'5': [9,0, 1,0, 1,4, 5,3, 9,4, 9,8, 5,10, 1,8],
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'6': [9,0, 1,4, 1,8, 5,10, 9,8, 9,5, 1,5],
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'7': [0,0, 10,0, 4,10],
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'8': [5,0, 10,2, 10,4, 5,5, 10,6, 10,8, 5,10, 0,8, 0,6, 5,5, 0,4, 0,2, 5,0],
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'9': [1,10, 9,6, 9,2, 5,0, 1,2, 1,5, 9,5],
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'.': [4,10, 6,10, 6,8, 4,8, 4,10],
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':': [4,2, 4,4, 5,4, 5,2, 6,2, 6,4, -1,-1, 4,8, 4,10, 5,10, 5,8, 6,8, 6,10],
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'-': [1,5, 9,5],
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' ': []
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}
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def draw(display, text, x, y, scale=1, c=1, thickness=1):
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start_x = x
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char_width = 12 * scale
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for char in text:
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char = char.upper()
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if char == '\n':
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y += 15 * scale
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x = start_x
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continue
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if char == ' ':
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x += char_width
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continue
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if char in FONT:
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strokes = FONT[char]
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if len(strokes) > 1:
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curr_x = strokes[0]
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curr_y = strokes[1]
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i = 2
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while i < len(strokes):
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next_x = strokes[i]
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next_y = strokes[i+1]
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if next_x == -1: # Pen Lift
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i += 2
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if i < len(strokes):
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curr_x = strokes[i]
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curr_y = strokes[i+1]
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i += 2
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continue
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# Calculate scaled coordinates
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x1 = int(x + curr_x * scale)
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y1 = int(y + curr_y * scale)
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x2 = int(x + next_x * scale)
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y2 = int(y + next_y * scale)
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# Draw Main Line
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display.line(x1, y1, x2, y2, c)
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# Draw Thick Lines (Offset by 1px)
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if thickness > 1:
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# Draw parallel line X+1
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display.line(x1+1, y1, x2+1, y2, c)
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if thickness > 2:
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# Draw parallel line Y+1
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display.line(x1, y1+1, x2, y2+1, c)
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if thickness > 3:
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# Draw parallel line X+1, Y+1
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display.line(x1+1, y1+1, x2+1, y2+1, c)
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curr_x = next_x
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curr_y = next_y
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i += 2
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x += char_width |