diff options
Diffstat (limited to 'Tools/pynche')
| -rw-r--r-- | Tools/pynche/ColorDB.py | 43 |
1 files changed, 21 insertions, 22 deletions
diff --git a/Tools/pynche/ColorDB.py b/Tools/pynche/ColorDB.py index d479c13..66f17cc 100644 --- a/Tools/pynche/ColorDB.py +++ b/Tools/pynche/ColorDB.py @@ -15,10 +15,13 @@ Supporte file types are: import sys import re +from types import * class BadColor(Exception): pass +DEFAULT_DB = None + # generic class class ColorDB: @@ -80,10 +83,11 @@ class ColorDB: except KeyError: raise BadColor(name) - def nearest(self, red, green, blue): + def nearest(self, rgbtuple): # TBD: use Voronoi diagrams, Delaunay triangulation, or octree for # speeding up the locating of nearest point. This is really # inefficient! + red, green, blue = rgbtuple nearest = -1 nearest_name = '' for name, aliases in self.__byrrggbb.values(): @@ -132,6 +136,9 @@ def get_colordb(file, filetype=X_RGB_TXT): finally: if fp: fp.close() + # save a global copy + global DEFAULT_DB + DEFAULT_DB = colordb return colordb @@ -141,28 +148,20 @@ def rrggbb_to_triplet(color): if color[0] <> '#': raise BadColor(color) - zero = ord('0') - a = ord('a') - A = ord('A') - def _hexchar(c, zero=zero, a=a, A=A): - v = ord(c) - if v >= zero and v <= zero+9: - return v - zero - elif v >= a and v <= a+26: - return v - a + 10 - elif v >= A and v <= A+26: - return v - A + 10 - else: - raise BadColor + red = color[1:3] + green = color[3:5] + blue = color[5:7] + return tuple(map(lambda v: string.atoi(v, 16), (red, green, blue))) - try: - digits = map(_hexchar, color[1:]) - except BadColor: - raise BadColor(color) - red = digits[0] * 16 + digits[1] - green = digits[2] * 16 + digits[3] - blue = digits[4] * 16 + digits[5] - return (red, green, blue) + +def triplet_to_rrggbb(rgbtuple): + """Converts a (red, green, blue) tuple to #rrggbb.""" + def hexify(v): + hexstr = hex(v)[2:4] + if len(hexstr) < 2: + hexstr = '0' + hexstr + return hexstr + return '#%s%s%s' % tuple(map(hexify, rgbtuple)) |