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"""
metrics.py - calculate PalmPilot font metrics
$Id: metrics.py,v 1.1 1998/08/27 10:30:09 rob Exp $
Copyright 1998 Rob Tillotson <rob@io.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2,
as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
"""
__version__ = '$Id: metrics.py,v 1.1 1998/08/27 10:30:09 rob Exp $'
import operator, string
metrics_normal = [
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x00 - 0x0f (controls)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x10 - 0x1f (controls)
3, 2, 4, 8, 6, 7, 6, 2, 4, 4, 6, 6, 3, 4, 2, 5, # 0x20 - 0x2f (spc/punct)
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 3, 6, 6, 6, 5, # 0x30 - 0x3f (num/punct)
8, 5, 5, 5, 6, 4, 4, 6, 6, 2, 4, 6, 5, 8, 6, 7, # 0x40 - 0x4f (@/A-O)
5, 7, 5, 5, 6, 6, 6, 8, 6, 6, 6, 3, 5, 3, 6, 5, # 0x50 - 0x5f (P-Z/punct)
3, 5, 5, 4, 5, 5, 4, 5, 5, 2, 3, 5, 2, 8, 5, 5, # 0x60 - 0x6f (bquote/a-o)
5, 5, 4, 4, 4, 5, 5, 6, 6, 6, 4, 4, 2, 4, 7, 0, # 0x70 - 0x7f (p-z/punct)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x80 - 0x8f
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x90 - 0x9f
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xa0 - 0xaf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xb0 - 0xbf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xc0 - 0xcf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xd0 - 0xdf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xe0 - 0xef
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xf0 - 0xff
]
metrics_bold = [
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x00 - 0x0f (controls)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x10 - 0x1f (controls)
3, 3, 6,10, 6,13, 9, 3, 5, 5, 6, 6, 3, 5, 3, 6, # 0x20 - 0x2f (spc/punct)
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 6, 6, 6, 6, # 0x30 - 0x3f (num/punct)
10, 7, 7, 6, 7, 5, 5, 8, 8, 3, 5, 7, 6,10, 7, 8, # 0x40 - 0x4f (@/A-O)
7, 8, 8, 6, 7, 7, 8,11, 7, 7, 7, 4, 6, 4, 6, 6, # 0x50 - 0x5f (P-Z/punct)
4, 5, 6, 5, 6, 6, 5, 6, 6, 3, 4, 6, 3, 9, 6, 6, # 0x60 - 0x6f (bquote/a-o)
6, 6, 5, 5, 6, 6, 6, 9, 6, 6, 5, 5, 3, 5, 7, 0, # 0x70 - 0x7f (p-z/punct)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x80 - 0x8f
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x90 - 0x9f
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xa0 - 0xaf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xb0 - 0xbf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xc0 - 0xcf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xd0 - 0xdf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xe0 - 0xef
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xf0 - 0xff
]
metrics_big = [
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x00 - 0x0f (controls)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x10 - 0x1f (controls)
5, 2, 4, 9, 6,11, 8, 2, 4, 4, 6, 8, 3, 4, 2, 5, # 0x20 - 0x2f (spc/punct)
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 3, 7, 7, 7, 5, # 0x30 - 0x3f (num/punct)
11, 9, 6, 7, 7, 6, 6, 8, 7, 3, 4, 7, 5,10, 7, 8, # 0x40 - 0x4f (@/A-O)
6, 8, 6, 5, 6, 7, 7,11, 7, 6, 5, 3, 5, 3, 6, 6, # 0x50 - 0x5f (P-Z/punct)
3, 6, 7, 6, 7, 7, 4, 7, 6, 3, 3, 6, 2,10, 7, 7, # 0x60 - 0x6f (bquote/a-o)
7, 7, 4, 5, 4, 7, 6,10, 6, 7, 6, 4, 2, 4, 7, 0, # 0x70 - 0x7f (p-z/punct)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x80 - 0x8f
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x90 - 0x9f
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xa0 - 0xaf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xb0 - 0xbf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xc0 - 0xcf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xd0 - 0xdf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xe0 - 0xef
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xf0 - 0xff
]
metrics_template = [
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x00 - 0x0f (controls)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x10 - 0x1f (controls)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x20 - 0x2f (spc/punct)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x30 - 0x3f (num/punct)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x40 - 0x4f (@/A-O)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x50 - 0x5f (P-Z/punct)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x60 - 0x6f (bquote/a-o)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x70 - 0x7f (p-z/punct)
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x80 - 0x8f
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0x90 - 0x9f
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xa0 - 0xaf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xb0 - 0xbf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xc0 - 0xcf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xd0 - 0xdf
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xe0 - 0xef
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, # 0xf0 - 0xff
]
metrics = {
0: metrics_normal,
1: metrics_bold,
2: metrics_big
}
def width(s, font=0):
if font == 'p': # profont (fixed width, used in AportisDoc)
return 6 * len(s)
mt = metrics.get(font, metrics_normal)
return reduce(operator.add,
map(lambda x, m=mt: m[x],
map(ord, s)),
0)
def wordwrap(s, max_width=160, font=0):
"""Wraps a string to the specified width, using the specified
font, and returns a list of lines. As a side effect, collapses
multiple spaces to one."""
o = ''
tw = 0
wspace = width(' ', font)
for word in string.split(string.strip(s)):
w = width(word, font)
if (tw + w) <= max_width:
o = o + word + ' '
tw = tw + w + wspace
else:
o = o + '\n' + word + ' '
tw = w + wspace
return filter(None, map(string.rstrip, string.split(o, '\n')))
|
