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Diffstat (limited to 'widgets/misc/e-hsv-utils.c')
| -rw-r--r-- | widgets/misc/e-hsv-utils.c | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/widgets/misc/e-hsv-utils.c b/widgets/misc/e-hsv-utils.c deleted file mode 100644 index 81919a2258..0000000000 --- a/widgets/misc/e-hsv-utils.c +++ /dev/null @@ -1,72 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* - * e-hsv-utils.c - utilites for manipulating colors in HSV space - * Copyright (C) 1995-2001 Seth Nickell, Peter Mattis, Spencer Kimball and Josh MacDonald - * - * Authors: - * Seth Nickell <seth@eazel.com> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License, version 2, as published by the Free Software Foundation. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include "e-hsv-utils.h" - -/* tweak_hsv is a really tweaky function. it modifies its first argument, which - should be the color you want tweaked. delta_h, delta_s and delta_v specify - how much you want their respective channels modified (and in what direction). - if it can't do the specified modification, it does it in the oppositon direction */ -void -e_hsv_tweak (GdkColor *color, - gdouble delta_h, - gdouble delta_s, - gdouble delta_v) -{ - gdouble h, s, v, r, g, b; - - r = color->red / 65535.0f; - g = color->green / 65535.0f; - b = color->blue / 65535.0f; - - gtk_rgb_to_hsv (r, g, b, &h, &s, &v); - - if (h + delta_h < 0) { - h -= delta_h; - } else { - h += delta_h; - } - - if (s + delta_s < 0) { - s -= delta_s; - } else { - s += delta_s; - } - - if (v + delta_v < 0) { - v -= delta_v; - } else { - v += delta_v; - } - - gtk_hsv_to_rgb (h, s, v, &r, &g, &b); - - color->red = r * 65535.0f; - color->green = g * 65535.0f; - color->blue = b * 65535.0f; -} - |