pysize/ui/gtk/colors.py

   1 # This program is free software; you can redistribute it and/or modify
   2 # it under the terms of the GNU General Public License as published by
   3 # the Free Software Foundation; either version 2 of the License, or
   4 # (at your option) any later version.
   5 #
   6 # This program is distributed in the hope that it will be useful,
   7 # but WITHOUT ANY WARRANTY; without even the implied warranty of
   8 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   9 # GNU Library General Public License for more details.
  10 #
  11 # You should have received a copy of the GNU General Public License
  12 # along with this program; if not, write to the Free Software
  13 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  14 #
  15 # See the COPYING file for license information.
  16 #
  17 # Copyright (c) 2006, 2007, 2008  Guillaume Chazarain <guichaz@gmail.com>
  18
  19 def normalize(*colors):
  20     return map(lambda x: x / 255.0, colors)
  21
  22 SMALL_DIRECTORY = normalize(145, 166, 245)
  23 BIG_DIRECTORY = normalize(100, 100, 200)
  24
  25 SMALL_FILE = normalize(255, 128, 128)
  26 BIG_FILE = normalize(204, 0, 0)
  27
  28 SMALL_REMAINING = normalize(128, 255, 255)
  29 BIG_REMAINING = normalize(89, 178, 175)
  30
  31 def map_interpol(small, big, interpol, size):
  32     return map(lambda i: interpol(small[i], big[i], size), xrange(3))
  33
  34 def get_node_colors(node, is_hovered, is_selected, interpol):
  35     if node.is_real():
  36         if node.is_dir():
  37             base_color = map_interpol(SMALL_DIRECTORY, BIG_DIRECTORY,
  38                                       interpol, node.size)
  39         else:
  40             base_color = map_interpol(SMALL_FILE, BIG_FILE,
  41                                       interpol, node.size)
  42     else:
  43         base_color = map_interpol(SMALL_REMAINING, BIG_REMAINING,
  44                                   interpol, node.size)
  45
  46     if is_selected:
  47         base_color = map(lambda x: x * 0.6, base_color)
  48
  49     if is_hovered:
  50         base_color = map(lambda x: (x + 1.0) / 2.0, base_color)
  51
  52
  53     col1 = map(lambda x: min(1.0, x + 0.08), base_color)
  54     col2 = map(lambda x: max(0.0, x - 0.08), base_color)
  55
  56     return col1, col2
  57