gtkhtml/htmlcolor.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*  This file is part of the GtkHTML library.
   3  *
   4  *  Copyright (C) 2000 Helix Code, Inc.
   5  *  Authors:           Radek Doulik (rodo@helixcode.com)
   6  *
   7  *  This library is free software; you can redistribute it and/or
   8  *  modify it under the terms of the GNU Library General Public
   9  *  License as published by the Free Software Foundation; either
  10  *  version 2 of the License, or (at your option) any later version.
  11  *
  12  *  This library is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  *  Library General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU Library General Public License
  18  *  along with this library; see the file COPYING.LIB.  If not, write to
  19  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20  *  Boston, MA 02110-1301, USA.
  21  *
  22 */
  23
  24 #include <config.h>
  25
  26 #include "htmlcolor.h"
  27 #include "htmlpainter.h"
  28
  29 HTMLColor *
  30 html_color_new (void)
  31 {
  32         HTMLColor *nc = g_new0 (HTMLColor, 1);
  33
  34         nc->refcount = 1;
  35
  36         return nc;
  37 }
  38
  39 HTMLColor *
  40 html_color_new_from_gdk_color (const GdkColor *color)
  41 {
  42         HTMLColor *nc = html_color_new ();
  43
  44         nc->color = *color;
  45
  46         return nc;
  47 }
  48
  49 HTMLColor *
  50 html_color_new_from_rgb (gushort red,
  51                          gushort green,
  52                          gushort blue)
  53 {
  54         HTMLColor *nc = html_color_new ();
  55
  56         nc->color.red   = red;
  57         nc->color.green = green;
  58         nc->color.blue  = blue;
  59
  60         return nc;
  61 }
  62
  63 void
  64 html_color_ref (HTMLColor *color)
  65 {
  66         g_assert (color);
  67
  68         color->refcount++;
  69 }
  70
  71 void
  72 html_color_unref (HTMLColor *color)
  73 {
  74         g_assert (color);
  75         g_assert (color->refcount > 0);
  76
  77         color->refcount--;
  78
  79         if (!color->refcount) {
  80                 /* if (color->allocated)
  81                  * g_warning ("FIXME, color free\n"); */
  82                 /* FIXME commented out to catch g_asserts on refcount so we could hunt "too much unrefs" bugs */
  83                 g_free (color);
  84         }
  85 }
  86
  87 void
  88 html_color_alloc (HTMLColor *color,
  89                   HTMLPainter *painter)
  90 {
  91         g_assert (color);
  92
  93         if (!color->allocated) {
  94                 html_painter_alloc_color (painter, &color->color);
  95                 color->allocated = TRUE;
  96         }
  97 }
  98
  99 gboolean
 100 html_color_equal (HTMLColor *color1,
 101                   HTMLColor *color2)
 102 {
 103         if (color1 == color2)
 104                 return TRUE;
 105         if (!color1 || !color2)
 106                 return FALSE;
 107
 108         return gdk_color_equal (&color1->color, &color2->color);
 109 }
 110
 111 void
 112 html_color_set (HTMLColor *color,
 113                 GdkColor *c)
 114 {
 115         /* if (color->allocated)
 116          * g_warning ("FIXME, color free\n"); */
 117         color->allocated = FALSE;
 118         color->color = *c;
 119 }