mirror of
https://github.com/ryanoasis/nerd-fonts.git
synced 2024-12-25 20:18:01 +02:00
247 lines
9.0 KiB
Python
Executable File
247 lines
9.0 KiB
Python
Executable File
#!/usr/bin/env python2
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import sys
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import psMat
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import re
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import os.path
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import argparse
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try:
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#Load the module
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import fontforge
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except ImportError:
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sys.stderr.write("FontForge module could not be loaded. Try installing fontforge python bindings\n")
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sys.exit(1)
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# argparse stuff
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parser = argparse.ArgumentParser(description='Patches a given font with programming and web development related glyphs (mainly for vim-webdevicons)')
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parser.add_argument('font', help='The path to the font to be patched (e.g. Inconsolata.otf)')
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parser.add_argument('-s', '--use-single-width-glyphs', dest='single', action='store_true', help='Whether to generate the glyphs as single-width not double-width (default is double-width)', default=False)
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parser.add_argument('-q', '--quiet', '--shutup', dest='quiet', action='store_true', help='Do not generate verbose output', default=False)
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args = parser.parse_args()
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print "using fontforge package version: " + str(fontforge.__version__)
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additionalFontNameSuffix = " Plus Nerd File Types"
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if args.single:
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additionalFontNameSuffix += " Mono"
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sourceFont = fontforge.open(args.font)
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# rename font
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fontname, style = re.match("^([^-]*)(?:(-.*))?$", sourceFont.fontname).groups()
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sourceFont.familyname = sourceFont.familyname + additionalFontNameSuffix
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sourceFont.fullname = sourceFont.fullname + additionalFontNameSuffix
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sourceFont.fontname = fontname + additionalFontNameSuffix.replace(" ", "")
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sourceFont.appendSFNTName('English (US)', 'Preferred Family', sourceFont.familyname)
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sourceFont.appendSFNTName('English (US)', 'Compatible Full', sourceFont.fullname)
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# glyph font
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sourceFont_em_original = sourceFont.em
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symbols = fontforge.open("glyph-source-fonts/original-source.otf")
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symbols2 = fontforge.open("glyph-source-fonts/devicons.ttf")
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symbolsRangeStart = 0xE500
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symbolsRangeEnd = 0xE521
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symbols2RangeStart = 0xE600
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symbols2RangeEnd = 0xE6A4
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sourceFontRange1Start = 0xE600
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sourceFontRange1End = 0xE621
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sourceFontRange2Start = 0xE700
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sourceFontRange2End = 0xE7A4
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SYM_ATTR = {
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# Right/left-aligned glyphs will have their advance width reduced in order to overlap the next glyph slightly
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0x2b60: { 'align': 'c', 'stretch': 'y' , 'overlap': False },
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0x2b61: { 'align': 'c', 'stretch': '' , 'overlap': False },
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0x2b62: { 'align': 'r', 'stretch': '' , 'overlap': False },
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0x2b63: { 'align': 'l', 'stretch': '' , 'overlap': False },
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0x2b64: { 'align': 'c', 'stretch': '' , 'overlap': False },
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0x2b80: { 'align': 'l', 'stretch': 'xy', 'overlap': True },
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0x2b81: { 'align': 'l', 'stretch': 'xy', 'overlap': True },
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0x2b82: { 'align': 'r', 'stretch': 'xy', 'overlap': True },
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0x2b83: { 'align': 'r', 'stretch': 'xy', 'overlap': True },
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}
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# Force the em size to be equal
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symbols.em = sourceFont.em
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symbols2.em = sourceFont.em
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# Initial font dimensions
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font_dim = {
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'xmin' : 0,
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'ymin' : -sourceFont.descent,
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'xmax' : 0,
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'ymax' : sourceFont.ascent,
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'width' : 0,
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'height': 0,
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}
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# Find the biggest char width and height
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#
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# 0x00-0x17f is the Latin Extended-A range
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# 0x2500-0x2600 is the box drawing range
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for glyph in range(0x00, 0x17f) + range(0x2500, 0x2600):
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try:
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(xmin, ymin, xmax, ymax) = sourceFont[glyph].boundingBox()
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except TypeError:
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continue
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if font_dim['width'] == 0:
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font_dim['width'] = sourceFont[glyph].width
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if ymin < font_dim['ymin']: font_dim['ymin'] = ymin
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if ymax > font_dim['ymax']: font_dim['ymax'] = ymax
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if xmax > font_dim['xmax']: font_dim['xmax'] = xmax
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# Calculate font height
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font_dim['height'] = abs(font_dim['ymin']) + font_dim['ymax']
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# Update the font encoding to ensure that the Unicode glyphs are available
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sourceFont.encoding = 'ISO10646'
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# Fetch this property before adding outlines
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onlybitmaps = sourceFont.onlybitmaps
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def get_dim(glyph):
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bbox = glyph.boundingBox()
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return {
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'xmin' : bbox[0],
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'ymin' : bbox[1],
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'xmax' : bbox[2],
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'ymax' : bbox[3],
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'width' : bbox[2] + (-bbox[0]),
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'height': bbox[3] + (-bbox[1]),
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}
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def copy_glyphs(sourceFont, sourceFontStart, sourceFontEnd, symbolFont, symbolFontStart, symbolFontEnd):
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sourceFontList = []
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sourceFontCounter = 0
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for i in xrange(sourceFontStart, sourceFontEnd + 1):
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sourceFontList.append(format(i, 'X'))
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# Create glyphs from symbol font
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symbolFont.selection.select(("ranges","unicode"),symbolFontStart,symbolFontEnd)
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sourceFont.selection.select(("ranges","unicode"),sourceFontStart,sourceFontEnd)
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for sym_glyph in symbolFont.selection.byGlyphs:
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#sym_attr = SYM_ATTR[sym_glyph.unicode]
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if args.quiet == False:
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print "updating glyph: " + str(sym_glyph)
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# convince that this string really is a hex:
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currentSourceFontGlyph = int("0x" + sourceFontList[sourceFontCounter], 16)
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# Prepare symbol glyph dimensions
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sym_dim = get_dim(sym_glyph)
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# Select and copy symbol from its encoding point
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symbolFont.selection.select(sym_glyph.encoding)
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symbolFont.copy()
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# Select and paste symbol to its unicode code point
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sourceFont.selection.select(currentSourceFontGlyph)
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sourceFont.paste()
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if args.single:
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# Now that we have copy/pasted the glyph, it's time to scale and move it
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# Handle glyph stretching
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#if 'x' in sym_attr['stretch']:
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# # Stretch the glyph horizontally
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# scale_ratio = font_dim['width'] / sym_dim['width']
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# sourceFont.transform(psMat.scale(scale_ratio, 1))
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#if 'y' in sym_attr['stretch']:
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# # Stretch the glyph vertically
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# scale_ratio = font_dim['height'] / sym_dim['height']
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# sourceFont.transform(psMat.scale(1, scale_ratio))
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# Use the dimensions from the pasted and stretched glyph
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sym_dim = get_dim(sourceFont[currentSourceFontGlyph])
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# Center-align the glyph vertically
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font_ycenter = font_dim['height'] / 2
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sym_ycenter = sym_dim['height'] / 2
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# First move it to the ymax (top)
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sourceFont.transform(psMat.translate(0, font_dim['ymax'] - sym_dim['ymax']))
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# Then move it the y center difference
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sourceFont.transform(psMat.translate(0, sym_ycenter - font_ycenter))
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# Ensure that the glyph doesn't extend outside the font's bounding box
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if sym_dim['width'] > font_dim['width']:
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# The glyph is too wide, scale it down to fit
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scale_matrix = psMat.scale(font_dim['width'] / sym_dim['width'], 1)
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sourceFont.transform(scale_matrix)
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# Use the dimensions from the stretched glyph
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sym_dim = get_dim(sourceFont[currentSourceFontGlyph])
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# Handle glyph alignment
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#if sym_attr['align'] == 'c':
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# # Center align
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# align_matrix = psMat.translate(font_dim['width'] / 2 - sym_dim['width'] / 2 , 0)
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align_matrix = psMat.translate(font_dim['width'] / 2 - sym_dim['width'] / 2 , 0)
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#elif sym_attr['align'] == 'r':
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# # Right align
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# align_matrix = psMat.translate(font_dim['width'] - sym_dim['width'], 0)
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#else:
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# No alignment (left alignment)
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#align_matrix = psMat.translate(0, 0)
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sourceFont.transform(align_matrix)
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#if sym_attr['overlap'] is True:
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# overlap_width = sourceFont.em / 48
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# # Stretch the glyph slightly horizontally if it should overlap
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# sourceFont.transform(psMat.scale((sym_dim['width'] + overlap_width) / sym_dim['width'], 1))
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# if sym_attr['align'] == 'l':
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# # The glyph should be left-aligned, so it must be moved overlap_width to the left
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# # This only applies to left-aligned glyphs because the glyph is scaled to the right
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# sourceFont.transform(psMat.translate(-overlap_width, 0))
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# Ensure the font is considered monospaced on Windows
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sourceFont[currentSourceFontGlyph].width = font_dim['width']
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sourceFontCounter += 1
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# reset selection so iteration works propertly @todo fix? rookie misunderstanding?
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symbolFont.selection.select(("ranges","unicode"),symbolFontStart,symbolFontEnd)
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# end for
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return
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copy_glyphs(sourceFont, sourceFontRange1Start, sourceFontRange1End, symbols, symbolsRangeStart, symbolsRangeEnd)
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copy_glyphs(sourceFont, sourceFontRange2Start, sourceFontRange2End, symbols2, symbols2RangeStart, symbols2RangeEnd)
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extension = os.path.splitext(sourceFont.path)[1]
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# @todo later add option to generate the sfd?
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#sourceFont.save(sourceFont.fullname + ".sfd")
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sourceFont.generate(sourceFont.fullname + extension)
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print "Generated"
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print sourceFont.fullname
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