/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* Copyright (C) 2000 CodeFactory AB Copyright (C) 2000 Jonas Borgström Copyright (C) 2000 Anders Carlsson This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. 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; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include "htmlcolorfactory.h" static GObjectClass *factory_parent_class = NULL; static GObjectClass *color_parent_class = NULL; gint color_usage = 0; typedef struct { const gchar *name; gint red; gint green; gint blue; } HtmlColorStandard; static void finalize (GObject *object); static HtmlColorStandard standard_colors [] = { { "aliceblue", 240, 248, 255}, { "antiquewhite", 250, 235, 215}, { "aqua", 0, 255, 255}, { "aquamarine", 127, 255, 212}, { "azure", 240, 255, 255}, { "beige", 245, 245, 220}, { "bisque", 255, 228, 196}, { "black", 0, 0, 0}, { "blanchedalmond", 255, 235, 205}, { "blue", 0, 0, 255}, { "blueviolet", 138, 43, 226}, { "brown", 165, 42, 42}, { "burlywood", 222, 184, 135}, { "cadetblue", 95, 158, 160}, { "chartreuse", 127, 255, 0}, { "chocolate", 210, 105, 30}, { "coral", 255, 127, 80}, { "cornflowerblue", 100, 149, 237}, { "cornsilk", 255, 248, 220}, { "crimson", 220, 20, 60}, { "cyan", 0, 255, 255}, { "darkblue", 0, 0, 139}, { "darkcyan", 0, 139, 139}, { "darkgoldenrod", 184, 134, 11}, { "darkgray", 169, 169, 169}, { "darkgreen", 0, 100, 0}, { "darkgrey", 169, 169, 169}, { "darkkhaki", 189, 183, 107}, { "darkmagenta", 139, 0, 139}, { "darkolivegreen", 85, 107, 47}, { "darkorange", 255, 140, 0}, { "darkorchid", 153, 50, 204}, { "darkred", 139, 0, 0}, { "darksalmon", 233, 150, 122}, { "darkseagreen", 143, 188, 143}, { "darkslateblue", 72, 61, 139}, { "darkslategray", 47, 79, 79}, { "darkslategrey", 47, 79, 79}, { "darkturquoise", 0, 206, 209}, { "darkviolet", 148, 0, 211}, { "deeppink", 255, 20, 147}, { "deepskyblue", 0, 191, 255}, { "dimgray", 105, 105, 105}, { "dimgrey", 105, 105, 105}, { "dodgerblue", 30, 144, 255}, { "firebrick", 178, 34, 34}, { "floralwhite", 255, 250, 240}, { "forestgreen", 34, 139, 34}, { "fuchsia", 255, 0, 255}, { "gainsboro", 220, 220, 220}, { "ghostwhite", 248, 248, 255}, { "gold", 255, 215, 0}, { "goldenrod", 218, 165, 32}, { "gray", 128, 128, 128}, { "grey", 128, 128, 128}, { "green", 0, 128, 0}, { "greenyellow", 173, 255, 47}, { "honeydew", 240, 255, 240}, { "hotpink", 255, 105, 180}, { "indianred", 205, 92, 92}, { "indigo", 75, 0, 130}, { "ivory", 255, 255, 240}, { "khaki", 240, 230, 140}, { "lavender", 230, 230, 250}, { "lavenderblush", 255, 240, 245}, { "lawngreen", 124, 252, 0}, { "lemonchiffon", 255, 250, 205}, { "lightblue", 173, 216, 230}, { "lightcoral", 240, 128, 128}, { "lightcyan", 224, 255, 255}, { "lightgoldenrodyellow", 250, 250, 210}, { "lightgray", 211, 211, 211}, { "lightgreen", 144, 238, 144}, { "lightgrey", 211, 211, 211}, { "lightpink", 255, 182, 193}, { "lightsalmon", 255, 160, 122}, { "lightseagreen", 32, 178, 170}, { "lightskyblue", 135, 206, 250}, { "lightslategray", 119, 136, 153}, { "lightslategrey", 119, 136, 153}, { "lightsteelblue", 176, 196, 222}, { "lightyellow", 255, 255, 224}, { "lime", 0, 255, 0}, { "limegreen", 50, 205, 50}, { "linen", 250, 240, 230}, { "magenta", 255, 0, 255}, { "maroon", 128, 0, 0}, { "mediumaquamarine", 102, 205, 170}, { "mediumblue", 0, 0, 205}, { "mediumorchid", 186, 85, 211}, { "mediumpurple", 147, 112, 219}, { "mediumseagreen", 60, 179, 113}, { "mediumslateblue", 123, 104, 238}, { "mediumspringgreen", 0, 250, 154}, { "mediumturquoise", 72, 209, 204}, { "mediumvioletred", 199, 21, 133}, { "midnightblue", 25, 25, 112}, { "mintcream", 245, 255, 250}, { "mistyrose", 255, 228, 225}, { "moccasin", 255, 228, 181}, { "navajowhite", 255, 222, 173}, { "navy", 0, 0, 128}, { "oldlace", 253, 245, 230}, { "olive", 128, 128, 0}, { "olivedrab", 107, 142, 35}, { "orange", 255, 165, 0}, { "orangered", 255, 69, 0}, { "orchid", 218, 112, 214}, { "palegoldenrod", 238, 232, 170}, { "palegreen", 152, 251, 152}, { "paleturquoise", 175, 238, 238}, { "palevioletred", 219, 112, 147}, { "papayawhip", 255, 239, 213}, { "peachpuff", 255, 218, 185}, { "peru", 205, 133, 63}, { "pink", 255, 192, 203}, { "plum", 221, 160, 221}, { "powderblue", 176, 224, 230}, { "purple", 128, 0, 128}, { "red", 255, 0, 0}, { "rosybrown", 188, 143, 143}, { "royalblue", 65, 105, 225}, { "saddlebrown", 139, 69, 19}, { "salmon", 250, 128, 114}, { "sandybrown", 244, 164, 96}, { "seagreen", 46, 139, 87}, { "seashell", 255, 245, 238}, { "sienna", 160, 82, 45}, { "silver", 192, 192, 192}, { "skyblue", 135, 206, 235}, { "slateblue", 106, 90, 205}, { "slategray", 112, 128, 144}, { "slategrey", 112, 128, 144}, { "snow", 255, 250, 250}, { "springgreen", 0, 255, 127}, { "steelblue", 70, 130, 180}, { "tan", 210, 180, 140}, { "teal", 0, 128, 128}, { "thistle", 216, 191, 216}, { "tomato", 255, 99, 71}, { "turquoise", 64, 224, 208}, { "violet", 238, 130, 238}, { "wheat", 245, 222, 179}, { "white", 255, 255, 255}, { "whitesmoke", 245, 245, 245}, { "yellow", 255, 255, 0}, { "yellowgreen", 154, 205, 50} }; static void html_color_factory_class_init (HtmlColorFactoryClass *klass) { factory_parent_class = g_type_class_peek_parent (klass); } static void html_color_factory_init (HtmlColorFactory *color_factory) { color_factory->colors = g_hash_table_new (g_int_hash, g_int_equal); } GType html_color_factory_get_type (void) { static GType html_color_factory_type = 0; if (!html_color_factory_type) { GTypeInfo html_color_factory_info = { sizeof (HtmlColorFactoryClass), NULL, NULL, (GClassInitFunc) html_color_factory_class_init, NULL, NULL, sizeof (HtmlColorFactory), 1, (GInstanceInitFunc) html_color_factory_init, }; html_color_factory_type = g_type_register_static (G_TYPE_OBJECT, "HtmlColorFactory", &html_color_factory_info, 0); } return html_color_factory_type; } static void parse_name (const gchar *name, gint *red, gint *green, gint *blue) { gint i; /* First, try colors of kind #rrggbb */ if (strlen (name) == 7 && name[0] == '#') { gchar *str; str = g_strndup (name + 1, 2); *red = strtol (str, NULL, 16); g_free (str); str = g_strndup (name + 3, 2); *green = strtol (str, NULL, 16); g_free (str); str = g_strndup (name + 5, 2); *blue = strtol (str, NULL, 16); g_free (str); } /* then, try colors of kind rrggbb */ else if (strlen (name) == 6 && isxdigit (name[0]) && isxdigit (name[1]) && isxdigit (name[2]) && isxdigit (name[3]) && isxdigit (name[4]) && isxdigit (name[5])) { gchar *str; str = g_strndup (name, 2); *red = strtol (str, NULL, 16); g_free (str); str = g_strndup (name + 2, 2); *green = strtol (str, NULL, 16); g_free (str); str = g_strndup (name + 4, 2); *blue = strtol (str, NULL, 16); g_free (str); } /* Next, try colors of kind #rgb that will expand to #rrggbb */ else if (strlen (name) == 4 && name[0] == '#') { gchar *str; str = g_strndup (name + 1, 1); *red = strtol (str, NULL, 16); *red += *red * 16; g_free (str); str = g_strndup (name + 2, 1); *green = strtol (str, NULL, 16); *green += *green * 16; g_free (str); str = g_strndup (name + 3, 1); *blue = strtol (str, NULL, 16); *blue += *blue * 16; g_free (str); } /* Next, try rgb (r, g, b) */ /* FIXME: Must be able to handle white-space correctly /ac */ else if (strstr (name, "rgb")) { gchar *ptr; ptr = strstr (name, "(") + 1; while (*ptr && *ptr == ' ') ptr++; *red = strtol (ptr, &ptr, 10); ptr++; while (*ptr && *ptr == ' ') ptr++; while (*ptr && *ptr == ',') ptr++; while (*ptr && *ptr == ' ') ptr++; *green = strtol (ptr, &ptr, 10); ptr++; while (*ptr && *ptr == ' ') ptr++; while (*ptr && *ptr == ',') ptr++; while (*ptr && *ptr == ' ') ptr++; *blue = strtol (ptr, &ptr, 10); } /* Finally, try the standard colors */ else { for (i = 0; i < sizeof (standard_colors) / sizeof (standard_colors [0]); i++) { if (g_strcasecmp (name, standard_colors [i].name) == 0) { *red = standard_colors [i].red; *green = standard_colors [i].green; *blue = standard_colors [i].blue; } } } } HtmlColor * html_color_factory_get_color_rgb (HtmlColorFactory *color_factory, gint red, gint green, gint blue) { HtmlColor *color; gint key; key = (red << 16) + (green << 8) + blue; color = g_hash_table_lookup (color_factory->colors, &key); if (color) { return (HtmlColor *)g_object_ref (G_OBJECT (color)); } color_usage++; return HTML_COLOR_FACTORY_GET_CLASS (color_factory)->new_color (color_factory, red, green, blue); } HtmlColor * html_color_factory_get_color (HtmlColorFactory *color_factory, const gchar *color_name) { gint red = -1, blue = -1, green = -1; gint key; HtmlColor *color; parse_name (color_name, &red, &green, &blue); if (red == -1) { g_print ("Failed to parse color '%s'\n", color_name); return NULL; } key = (red << 16) + (green << 8) + blue; color = g_hash_table_lookup (color_factory->colors, &key); if (color) { return (HtmlColor *)g_object_ref (G_OBJECT (color)); } color_usage++; return HTML_COLOR_FACTORY_GET_CLASS (color_factory)->new_color (color_factory, red, green, blue); } static void html_color_class_init (HtmlColorClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); color_parent_class = g_type_class_peek_parent (klass); object_class->finalize = finalize; } static void html_color_init (HtmlColor *color) { } GType html_color_get_type (void) { static GType html_color_type = 0; if (!html_color_type) { GTypeInfo html_color_info = { sizeof (HtmlColorClass), NULL, NULL, (GClassInitFunc) html_color_class_init, NULL, NULL, sizeof (HtmlColor), 1, (GInstanceInitFunc) html_color_init, }; html_color_type = g_type_register_static (G_TYPE_OBJECT, "HtmlColor", &html_color_info, 0); } return html_color_type; } static void finalize (GObject *object) { HtmlColor *color = HTML_COLOR (object); g_hash_table_remove (color->color_factory->colors, &color->key); color_usage--; G_OBJECT_CLASS (color_parent_class)->finalize (object); } HtmlColor * html_color_transform (HtmlColor *color, gfloat ratio) { return HTML_COLOR_GET_CLASS (color)->transform (color, ratio); }