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Revision 1.1.1.1 - (view) (download) (as text)
| 1 : | sheradon | 1.1 | """A simple but stylish pixel font, for drawing reasonably fast text |
| 2 : | in OpenGL. It's the Silkscreen font by Jason Kottke | ||
| 3 : | (http://kottke.org/plus/type/silkscreen), transmogrified to this | ||
| 4 : | by Larry Sheradon (sheradon@mcs.anl.gov) | ||
| 5 : | """ | ||
| 6 : | from OpenGL.GL import * | ||
| 7 : | import string | ||
| 8 : | |||
| 9 : | letters = {} | ||
| 10 : | |||
| 11 : | # a letter is tuple of (width, list of rectangle-tuples) | ||
| 12 : | # rectangle is (left, bottom, width, height) where 0,0 is bottom left | ||
| 13 : | letters[' '] = [0] | ||
| 14 : | letters['A'] = [4, (0,0,1,4), (1,4,2,1), (1,2,2,1), (3,0,1,4)] | ||
| 15 : | letters['B'] = [4, (0,0,1,5), (1,4,2,1), (1,2,2,1), (1,0,2,1), (3,1,1,3)] | ||
| 16 : | letters['C'] = [4, (0,1,1,3), (1,4,2,1), (1,0,2,1), (3,3,1,1), (3,1,1,1)] | ||
| 17 : | letters['D'] = [4, (0,0,1,5), (1,4,2,1), (1,0,2,1), (3,1,1,3)] | ||
| 18 : | letters['E'] = [3, (0,0,1,5), (1,4,2,1), (1,2,2,1), (1,0,2,1)] | ||
| 19 : | letters['F'] = [3, (0,0,1,5), (1,4,2,1), (1,2,2,1)] | ||
| 20 : | letters['G'] = [4, (0,1,1,3), (1,4,3,1), (1,0,2,1), (2,2,2,1), (3,1,1,1)] | ||
| 21 : | letters['H'] = [4, (0,0,1,5), (1,2,2,1), (3,0,1,5)] | ||
| 22 : | letters['I'] = [1, (0,0,1,5)] | ||
| 23 : | letters['J'] = [4, (0,1,1,1), (1,0,2,1), (3,1,1,4)] | ||
| 24 : | letters['K'] = [4, (0,0,1,5), (1,2,1,1), (2,3,1,1), (3,4,1,1), (2,1,1,1), (3,0,1,1)] | ||
| 25 : | letters['L'] = [3, (0,0,1,5), (1,0,2,1)] | ||
| 26 : | letters['M'] = [5, (0,0,1,5), (1,3,1,1), (2,2,1,1), (3,3,1,1), (4,0,1,5)] | ||
| 27 : | letters['N'] = [5, (0,0,1,5), (1,3,1,1), (2,2,1,1), (3,1,1,1), (4,0,1,5)] | ||
| 28 : | letters['O'] = [4, (0,1,1,3), (1,4,2,1), (1,0,2,1), (3,1,1,3)] | ||
| 29 : | letters['P'] = [4, (0,0,1,5), (1,4,2,1), (1,2,2,1), (3,3,1,1)] | ||
| 30 : | letters['Q'] = [4, (0,1,1,3), (1,4,2,1), (1,0,2,1), (3,1,1,3), (3,-1,1,1)] | ||
| 31 : | letters['R'] = [4, (0,0,1,5), (1,4,2,1), (1,2,2,1), (3,3,1,1), (2,1,1,1), (3,0,1,1)] | ||
| 32 : | letters['S'] = [4, (0,0,3,1), (3,1,1,1), (1,2,2,1), (0,3,1,1), (1,4,3,1)] | ||
| 33 : | letters['T'] = [3, (0,4,3,1), (1,0,1,4)] | ||
| 34 : | letters['U'] = [4, (0,1,1,4), (1,0,2,1), (3,1,1,4)] | ||
| 35 : | letters['V'] = [5, (0,3,1,2), (1,1,1,2), (2,0,1,1), (3,1,1,2), (4,3,1,2)] | ||
| 36 : | letters['W'] = [5, (0,1,1,4), (1,0,1,1), (2,1,1,3), (3,0,1,1), (4,1,1,4)] | ||
| 37 : | letters['X'] = [5, (0,0,1,1), (1,1,1,1), (2,2,1,1), (3,3,1,1), (4,4,1,1), (0,4,1,1), (1,3,1,1), (3,1,1,1), (4,0,1,1)] | ||
| 38 : | letters['Y'] = [5, (0,4,1,1), (1,3,1,1), (2,0,1,3), (3,3,1,1), (4,4,1,1)] | ||
| 39 : | letters['Z'] = [3, (0,0,3,1), (0,1,1,1), (1,2,1,1), (2,3,1,1), (0,4,3,1)] | ||
| 40 : | letters['1'] = [3, (0,0,3,1), (1,1,1,4), (0,4,1,1)] | ||
| 41 : | letters['2'] = [4, (0,0,4,1), (0,1,1,1), (1,2,2,1), (3,3,1,1), (0,4,3,1)] | ||
| 42 : | letters['3'] = [4, (0,0,3,1), (3,1,1,1), (1,2,2,1), (3,3,1,1), (0,4,3,1)] | ||
| 43 : | letters['4'] = [4, (0,2,1,3), (1,2,3,1), (2,0,1,5)] | ||
| 44 : | letters['5'] = [4, (0,0,3,1), (3,1,1,1), (0,2,3,1), (0,3,1,1), (0,4,4,1)] | ||
| 45 : | letters['6'] = [4, (0,1,1,3), (1,4,2,1), (1,2,2,1), (1,0,2,1), (3,1,1,1)] | ||
| 46 : | letters['7'] = [4, (0,4,4,1), (3,3,1,1), (2,2,1,1), (1,0,1,2)] | ||
| 47 : | letters['8'] = [4, (1,0,2,1), (0,1,1,1), (3,1,1,1), (1,2,2,1), (0,3,1,1), (3,3,1,1), (1,4,2,1)] | ||
| 48 : | letters['9'] = [4, (0,3,1,1), (1,0,2,1), (1,2,2,1), (1,4,2,1), (3,1,1,3)] | ||
| 49 : | letters['0'] = [4, (0,1,1,3), (1,4,2,1), (1,0,2,1), (3,1,1,3)] | ||
| 50 : | letters['!'] = [1, (0,0,1,1), (0,2,1,3)] | ||
| 51 : | letters['@'] = [5, (0,1,1,3), (1,4,3,1), (2,2,1,2), (3,2,1,1), (1,0,3,1), (4,3,1,1)] | ||
| 52 : | letters['#'] = [5, (0,1,5,1), (0,3,5,1), (1,0,1,5), (3,1,1,5)] | ||
| 53 : | letters['%'] = [5, (0,3,2,2), (1,0,1,2), (2,2,1,1), (3,3,1,2), (3,0,2,2)] | ||
| 54 : | letters['^'] = [3, (0,4,1,1), (1,5,1,1), (2,4,1,1)] | ||
| 55 : | letters['&'] = [4, (0,1,1,1), (0,3,1,1), (1,4,3,1), (1,2,2,1), (1,0,3,1), (2,5,1,1), (2,-1,1,1)] | ||
| 56 : | letters['*'] = [5, (0,1,1,1), (0,3,1,1), (1,2,3,1), (2,0,1,5), (4,1,1,1), (4,3,1,1)] | ||
| 57 : | letters['('] = [2, (0,1,1,3), (1,0,1,1), (1,4,1,1)] | ||
| 58 : | letters[')'] = [2, (1,1,1,3), (0,0,1,1), (0,4,1,1)] | ||
| 59 : | letters['_'] = [4, (0,-1,4,1)] | ||
| 60 : | letters['+'] = [5, (0,2,5,1), (2,0,1,5)] | ||
| 61 : | letters['-'] = [4, (0,2,4,1)] | ||
| 62 : | letters['`'] = [2, (0,4,1,1), (1,3,1,1)] | ||
| 63 : | letters['~'] = [4, (0,3,1,1), (1,4,1,1), (2,3,1,1), (3,4,1,1)] | ||
| 64 : | letters['['] = [2, (0,0,1,5), (1,4,1,1), (1,0,1,1)] | ||
| 65 : | letters[']'] = [2, (0,0,1,1), (0,4,1,1), (1,0,1,5)] | ||
| 66 : | letters['\\']= [3, (0,3,1,2), (1,2,1,1), (2,0,1,2)] | ||
| 67 : | letters['{'] = [3, (0,2,1,1), (1,0,1,2), (1,3,1,2), (2,0,1,1), (2,4,1,1)] | ||
| 68 : | letters['}'] = [3, (0,0,1,1), (0,4,1,1), (1,0,1,2), (1,3,1,2), (2,2,1,1)] | ||
| 69 : | letters['|'] = [1, (0,-1,1,7)] | ||
| 70 : | letters[';'] = [2, (0,0,1,1), (1,1,1,1), (1,3,1,1)] | ||
| 71 : | letters[':'] = [1, (0,1,1,1), (0,3,1,1)] | ||
| 72 : | letters["'"] = [1, (0,3,1,2)] | ||
| 73 : | letters['"'] = [3, (0,3,1,2), (2,3,1,2)] | ||
| 74 : | letters[','] = [2, (0,-1,1,1), (1,0,1,1)] | ||
| 75 : | letters['.'] = [1, (0,0,1,1)] | ||
| 76 : | letters['/'] = [3, (0,0,1,2), (1,2,1,1), (2,3,1,2)] | ||
| 77 : | letters['<'] = [3, (2,0,1,1), (1,1,1,1), (0,2,1,1), (1,3,1,1), (2,4,1,1)] | ||
| 78 : | letters['>'] = [3, (0,0,1,1), (1,1,1,1), (2,2,1,1), (1,3,1,1), (0,4,1,1)] | ||
| 79 : | letters['?'] = [4, (0,4,3,1), (1,2,2,1), (1,0,1,1), (3,3,1,1)] | ||
| 80 : | |||
| 81 : | # ----------------------------------------------------- | ||
| 82 : | def drawString(rawstr, x, y, height, align='left', valign='bottom'): | ||
| 83 : | # ----------------------------------------------------- | ||
| 84 : | """Draws the given string in a pixely/block font. It'll be 'height' | ||
| 85 : | GL world-coordinates tall. Align can be left, center, or right; | ||
| 86 : | if left, coords are lower-left corner; center they're the center, etc. | ||
| 87 : | @type rawstr: string | ||
| 88 : | @type coords: (float, float) | ||
| 89 : | @type height: float | ||
| 90 : | @type align: string | ||
| 91 : | """ | ||
| 92 : | str = string.upper(rawstr) | ||
| 93 : | glPushMatrix() | ||
| 94 : | glTranslatef(x, y, 0) | ||
| 95 : | |||
| 96 : | pixSize = float(height) / 5.0 | ||
| 97 : | lines = string.split(string.upper(rawstr), r'\N') | ||
| 98 : | if valign == 'center': yOffset = 3.5 * len(lines) - 1 - 5 | ||
| 99 : | else: yOffset = (len(lines)-1) * 7 | ||
| 100 : | for line in lines: | ||
| 101 : | if align == 'left': xOffset = 0 | ||
| 102 : | elif align == 'center': xOffset = -1 * pixLen(line)/2.0 | ||
| 103 : | elif align == 'right': xOffset = -1 * pixLen(line) | ||
| 104 : | for c in line: | ||
| 105 : | letter = getLetter(c) | ||
| 106 : | # draw each rectangle of the letter: | ||
| 107 : | for rect in letter[1:]: | ||
| 108 : | botLeft = (pixSize * (xOffset + rect[0]), pixSize * (yOffset + rect[1])) | ||
| 109 : | glRectf(botLeft[0], botLeft[1], botLeft[0]+pixSize*rect[2], botLeft[1]+pixSize*rect[3]) | ||
| 110 : | # shift over for next letter | ||
| 111 : | xOffset = xOffset + letter[0] + 2 | ||
| 112 : | yOffset -= 7 | ||
| 113 : | |||
| 114 : | glPopMatrix() | ||
| 115 : | |||
| 116 : | # --------------- | ||
| 117 : | def getLetter(c): | ||
| 118 : | # --------------- | ||
| 119 : | """Just return the letter-definition of character c, if it exists. | ||
| 120 : | If it's not there, return a space. | ||
| 121 : | @type c: string | ||
| 122 : | @rtype: list (see 'letters' definition above) | ||
| 123 : | """ | ||
| 124 : | try: letter = letters[c] | ||
| 125 : | except KeyError: letter = letters[' '] | ||
| 126 : | return letter | ||
| 127 : | |||
| 128 : | # -------------- | ||
| 129 : | def pixLen(str): | ||
| 130 : | # -------------- | ||
| 131 : | """Number of "pixels" (in the font) wide that str is. | ||
| 132 : | @type str: string | ||
| 133 : | @rtype: integer | ||
| 134 : | """ | ||
| 135 : | count = 0 | ||
| 136 : | for c in str: | ||
| 137 : | count += getLetter(c)[0] | ||
| 138 : | count += 2 * (len(str) - 1) # spaces between letters | ||
| 139 : | return count |
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