From e1adf09c8f76d8b872422ddb5ef69befac52495b Mon Sep 17 00:00:00 2001
From: nobody <nobody@localhost>
Date: Sat, 4 Aug 2001 19:29:35 +0000
Subject: This commit was manufactured by cvs2svn to create tag 'pan-0-10-0'.

svn path=/tags/pan-0-10-0/; revision=11682
---
 widgets/misc/e-hsv-utils.c | 166 ---------------------------------------------
 1 file changed, 166 deletions(-)
 delete mode 100644 widgets/misc/e-hsv-utils.c

(limited to 'widgets/misc/e-hsv-utils.c')

diff --git a/widgets/misc/e-hsv-utils.c b/widgets/misc/e-hsv-utils.c
deleted file mode 100644
index 31561436dd..0000000000
--- a/widgets/misc/e-hsv-utils.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/*
- * e-hsv-utils.c: utilites for manipulating colours in HSV space
- *
- * Author:
- *   Seth Nickell <seth@eazel.com>
- *
- * Copyright (C) 1995-2001 Seth Nickell, Peter Mattis, Spencer Kimball and Josh MacDonald
- *
- */
-
-#include <config.h>
-
-#include "e-hsv-utils.h"
-
-/* tweak_hsv is a really tweaky function. it modifies its first argument, which
-   should be the colour 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 *colour, gdouble delta_h, gdouble delta_s, gdouble delta_v) 
-{
-	gdouble h, s, v, r, g, b;
-
-	r = colour->red   / 65535.0f;
-	g = colour->green / 65535.0f;
-	b = colour->blue  / 65535.0f;
-	
-	e_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;
-	}
-
-	e_hsv_to_rgb (h, s, v, &r, &g, &b);
-	
-	colour->red   = r * 65535.0f;
-	colour->green = g * 65535.0f;
-	colour->blue  = b * 65535.0f;
-}
-
-/* Copy n' Paste code from the GTK+ colour selector (gtkcolorsel.c) */
-/* Originally lifted, I suspect, from "Foley, van Dam"              */
-void
-e_hsv_to_rgb (gdouble  h, gdouble  s, gdouble  v,
-	      gdouble *r, gdouble *g, gdouble *b)
-{
-  gint i;
-  gdouble f, w, q, t;
-
-  if (s == 0.0)
-    s = 0.000001;
-
-  if (h == -1.0)
-    {
-      *r = v;
-      *g = v;
-      *b = v;
-    }
-  else
-    {
-      if (h == 360.0)
-	h = 0.0;
-      h = h / 60.0;
-      i = (gint) h;
-      f = h - i;
-      w = v * (1.0 - s);
-      q = v * (1.0 - (s * f));
-      t = v * (1.0 - (s * (1.0 - f)));
-
-      switch (i)
-	{
-	case 0:
-	  *r = v;
-	  *g = t;
-	  *b = w;
-	  break;
-	case 1:
-	  *r = q;
-	  *g = v;
-	  *b = w;
-	  break;
-	case 2:
-	  *r = w;
-	  *g = v;
-	  *b = t;
-	  break;
-	case 3:
-	  *r = w;
-	  *g = q;
-	  *b = v;
-	  break;
-	case 4:
-	  *r = t;
-	  *g = w;
-	  *b = v;
-	  break;
-	case 5:
-	  *r = v;
-	  *g = w;
-	  *b = q;
-	  break;
-	}
-    }
-}
-
-void
-e_rgb_to_hsv (gdouble r, gdouble g, gdouble b,
-	      gdouble *h, gdouble *s, gdouble *v)
-{
-  double max, min, delta;
-
-  max = r;
-  if (g > max)
-    max = g;
-  if (b > max)
-    max = b;
-
-  min = r;
-  if (g < min)
-    min = g;
-  if (b < min)
-    min = b;
-
-  *v = max;
-
-  if (max != 0.0)
-    *s = (max - min) / max;
-  else
-    *s = 0.0;
-
-  if (*s == 0.0)
-    *h = -1.0;
-  else
-    {
-      delta = max - min;
-
-      if (r == max)
-	*h = (g - b) / delta;
-      else if (g == max)
-	*h = 2.0 + (b - r) / delta;
-      else if (b == max)
-	*h = 4.0 + (r - g) / delta;
-
-      *h = *h * 60.0;
-
-      if (*h < 0.0)
-	*h = *h + 360;
-    }
-}
-
-
-- 
cgit v1.2.3