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vied12/CheckFonts.py

Created March 9, 2012 19:54
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  1. Edouard renamed this gist Mar 9, 2012. 1 changed file with 0 additions and 0 deletions.
    0 CheckFonts → CheckFonts.py
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  2. Edouard created this gist Mar 9, 2012.
    72 changes: 72 additions & 0 deletions CheckFonts
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    Original file line number Diff line number Diff line change
    @@ -0,0 +1,72 @@
    import sys, os
    import cairo
    import commands

    def truncate_chars(value, max_length): # thanks django!
    if len(value) <= max_length:
    return value
    truncd_val = value[:max_length]
    if value[max_length] != " ":
    rightmost_space = truncd_val.rfind(" ")
    if rightmost_space != -1:
    truncd_val = truncd_val[:rightmost_space]
    return truncd_val + "..."

    # == Main =================================
    image_path = os.path.abspath("test_font.png")
    fonts = sys.argv[1:]
    offset = 40
    known_fonts = []

    # get known fonts
    out=commands.getoutput('fc-list').split('\n')
    for line in out:
    line = line.split(':style=')
    font = line[0]
    # styles = line[1].split(' ')
    known_fonts.append(font)

    _fonts = fonts or known_fonts

    # init cairo
    size = (1200, offset*len(_fonts)+offset)
    surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, size[0], size[1])
    ctx = cairo.Context(surface)
    ctx.set_source_rgb(0,0,0)
    ctx.set_font_size(30)
    # background
    ctx.set_source_rgb(255, 255, 255)
    ctx.rectangle(0, 0, size[0], size[1])
    ctx.fill()

    for i, font in enumerate(_fonts):
    print "[%d] testing font %s" % (i+1, font)
    # if tested font is provided by user, we check if fonts are known by the OS
    if fonts:
    unknown = False
    if not font in known_fonts:
    unknown = True
    print "[%d]=====> font '%s' unknown !!" % (i+1, font)
    # drawing line
    if fonts and unknown: # colored in red if font is unknown
    ctx.set_source_rgb(255, 0, 0)
    ctx.rectangle(0, i*offset+0.25*offset, size[0], offset)
    ctx.fill()
    elif i%2:
    ctx.set_source_rgba(0, 25, 25,0.2)
    ctx.rectangle(0, i*offset+0.25*offset, size[0], offset)
    ctx.fill()
    ctx.set_source_rgb(0, 0, 0)
    ctx.select_font_face("Courier new", cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_NORMAL)
    ctx.move_to(0, i*offset+offset)
    ctx.show_text("%d %s" % (i+1, truncate_chars(font, 25)))
    ctx.select_font_face(font, cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_NORMAL)
    ctx.move_to(600, i*offset+offset)
    ctx.show_text(font)
    # write the image file
    surface.write_to_png(image_path)

    print "%d fonts tested" % len(_fonts)
    print "image created at '%s'" % (image_path)