/* -*- Mode: C; indent-tabs-mode:nil; c-basic-offset: 8-*- */ /* * This file is part of The Croco Library * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2.1 of the GNU Lesser General Public * License as published by the Free Software Foundation. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA * * Author: Dodji Seketeli * See COPYRIGHTS file for copyrights information. */ #include "config.h" #include #include #include #include "cr-rgb.h" #include "cr-term.h" #include "cr-parser.h" static const CRRgb gv_standard_colors[] = { {(const guchar*)"aliceblue", 240, 248, 255, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"antiquewhite", 250, 235, 215, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"aqua", 0, 255, 255, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"aquamarine", 127, 255, 212, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"azure", 240, 255, 255, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"beige", 245, 245, 220, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"bisque", 255, 228, 196, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"black", 0, 0, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"blanchedalmond", 255, 235, 205, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"blue", 0, 0, 255, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"blueviolet", 138, 43, 226, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"brown", 165, 42, 42, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"burlywood", 222, 184, 135, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"cadetblue", 95, 158, 160, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"chartreuse", 127, 255, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"chocolate", 210, 105, 30, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"coral", 255, 127, 80, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"cornflowerblue", 100, 149, 237, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"cornsilk", 255, 248, 220, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"crimson", 220, 20, 60, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"cyan", 0, 255, 255, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkblue", 0, 0, 139, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkcyan", 0, 139, 139, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkgoldenrod", 184, 134, 11, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkgray", 169, 169, 169, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkgreen", 0, 100, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkgrey", 169, 169, 169, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkkhaki", 189, 183, 107, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkmagenta", 139, 0, 139, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkolivegreen", 85, 107, 47, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkorange", 255, 140, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkorchid", 153, 50, 204, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkred", 139, 0, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darksalmon", 233, 150, 122, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkseagreen", 143, 188, 143, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkslateblue", 72, 61, 139, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkslategray", 47, 79, 79, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkslategrey", 47, 79, 79, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkturquoise", 0, 206, 209, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"darkviolet", 148, 0, 211, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"deeppink", 255, 20, 147, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"deepskyblue", 0, 191, 255, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"dimgray", 105, 105, 105, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"dimgrey", 105, 105, 105, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"dodgerblue", 30, 144, 255, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"firebrick", 178, 34, 34, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"floralwhite", 255, 250, 240, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"forestgreen", 34, 139, 34, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"fuchsia", 255, 0, 255, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"gainsboro", 220, 220, 220, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"ghostwhite", 248, 248, 255, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"gold", 255, 215, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"goldenrod", 218, 165, 32, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"gray", 128, 128, 128, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"green", 0, 128, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"greenyellow", 173, 255, 47, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"grey", 128, 128, 128, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"honeydew", 240, 255, 240, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"hotpink", 255, 105, 180, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"indianred", 205, 92, 92, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"indigo", 75, 0, 130, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"ivory", 255, 255, 240, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"khaki", 240, 230, 140, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lavender", 230, 230, 250, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lavenderblush", 255, 240, 245, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lawngreen", 124, 252, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lemonchiffon", 255, 250, 205, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightblue", 173, 216, 230, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightcoral", 240, 128, 128, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightcyan", 224, 255, 255, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightgoldenrodyellow", 250, 250, 210, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightgray", 211, 211, 211, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightgreen", 144, 238, 144, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightgrey", 211, 211, 211, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightpink", 255, 182, 193, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightsalmon", 255, 160, 122, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightseagreen", 32, 178, 170, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightskyblue", 135, 206, 250, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightslategray", 119, 136, 153, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightslategrey", 119, 136, 153, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightsteelblue", 176, 196, 222, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lightyellow", 255, 255, 224, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"lime", 0, 255, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"limegreen", 50, 205, 50, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"linen", 250, 240, 230, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"magenta", 255, 0, 255, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"maroon", 128, 0, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"mediumaquamarine", 102, 205, 170, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"mediumblue", 0, 0, 205, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"mediumorchid", 186, 85, 211, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"mediumpurple", 147, 112, 219, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"mediumseagreen", 60, 179, 113, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"mediumslateblue", 123, 104, 238, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"mediumspringgreen", 0, 250, 154, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"mediumturquoise", 72, 209, 204, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"mediumvioletred", 199, 21, 133, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"midnightblue", 25, 25, 112, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"mintcream", 245, 255, 250, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"mistyrose", 255, 228, 225, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"moccasin", 255, 228, 181, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"navajowhite", 255, 222, 173, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"navy", 0, 0, 128, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"oldlace", 253, 245, 230, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"olive", 128, 128, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"olivedrab", 107, 142, 35, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"orange", 255, 165, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"orangered", 255, 69, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"orchid", 218, 112, 214, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"palegoldenrod", 238, 232, 170, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"palegreen", 152, 251, 152, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"paleturquoise", 175, 238, 238, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"palevioletred", 219, 112, 147, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"papayawhip", 255, 239, 213, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"peachpuff", 255, 218, 185, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"peru", 205, 133, 63, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"pink", 255, 192, 203, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"plum", 221, 160, 221, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"powderblue", 176, 224, 230, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"purple", 128, 0, 128, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"red", 255, 0, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"rosybrown", 188, 143, 143, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"royalblue", 65, 105, 225, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"saddlebrown", 139, 69, 19, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"salmon", 250, 128, 114, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"sandybrown", 244, 164, 96, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"seagreen", 46, 139, 87, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"seashell", 255, 245, 238, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"sienna", 160, 82, 45, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"silver", 192, 192, 192, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"skyblue", 135, 206, 235, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"slateblue", 106, 90, 205, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"slategray", 112, 128, 144, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"slategrey", 112, 128, 144, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"snow", 255, 250, 250, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"springgreen", 0, 255, 127, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"steelblue", 70, 130, 180, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"tan", 210, 180, 140, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"teal", 0, 128, 128, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"thistle", 216, 191, 216, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"tomato", 255, 99, 71, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"transparent", 255, 255, 255, FALSE, FALSE, TRUE, {0,0,0}}, {(const guchar*)"turquoise", 64, 224, 208, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"violet", 238, 130, 238, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"wheat", 245, 222, 179, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"white", 255, 255, 255, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"whitesmoke", 245, 245, 245, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"yellow", 255, 255, 0, FALSE, FALSE, FALSE, {0,0,0}}, {(const guchar*)"yellowgreen", 154, 205, 50, FALSE, FALSE, FALSE, {0,0,0}} }; /** * cr_rgb_new: * *The default constructor of #CRRgb. * *Returns the newly built instance of #CRRgb */ CRRgb * cr_rgb_new (void) { CRRgb *result = NULL; result = g_try_malloc (sizeof (CRRgb)); if (result == NULL) { cr_utils_trace_info ("No more memory"); return NULL; } memset (result, 0, sizeof (CRRgb)); return result; } /** * cr_rgb_new_with_vals: *@a_red: the red component of the color. *@a_green: the green component of the color. *@a_blue: the blue component of the color. *@a_unit: the unit of the rgb values. *(either percentage or integer values) * *A constructor of #CRRgb. * *Returns the newly built instance of #CRRgb. */ CRRgb * cr_rgb_new_with_vals (gulong a_red, gulong a_green, gulong a_blue, gboolean a_is_percentage) { CRRgb *result = NULL; result = cr_rgb_new (); g_return_val_if_fail (result, NULL); result->red = a_red; result->green = a_green; result->blue = a_blue; result->is_percentage = a_is_percentage; return result; } /** * cr_rgb_to_string: *@a_this: the instance of #CRRgb to serialize. * *Serializes the rgb into a zero terminated string. * *Returns the zero terminated string containing the serialized *rgb. MUST BE FREED by the caller using g_free(). */ guchar * cr_rgb_to_string (CRRgb const * a_this) { guchar *result = NULL; GString *str_buf = NULL; str_buf = g_string_new (NULL); g_return_val_if_fail (str_buf, NULL); if (a_this->is_percentage == 1) { g_string_append_printf (str_buf, "%ld", a_this->red); g_string_append (str_buf, "%, "); g_string_append_printf (str_buf, "%ld", a_this->green); g_string_append (str_buf, "%, "); g_string_append_printf (str_buf, "%ld", a_this->blue); g_string_append_c (str_buf, '%'); } else { g_string_append_printf (str_buf, "%ld", a_this->red); g_string_append (str_buf, ", "); g_string_append_printf (str_buf, "%ld", a_this->green); g_string_append (str_buf, ", "); g_string_append_printf (str_buf, "%ld", a_this->blue); } if (str_buf) { result = (guchar *) str_buf->str; g_string_free (str_buf, FALSE); } return result; } /** * cr_rgb_dump: *@a_this: the "this pointer" of *the current instance of #CRRgb. *@a_fp: the destination file pointer. * *Dumps the current instance of #CRRgb *to a file. */ void cr_rgb_dump (CRRgb const * a_this, FILE * a_fp) { guchar *str = NULL; g_return_if_fail (a_this); str = cr_rgb_to_string (a_this); if (str) { fprintf (a_fp, "%s", str); g_free (str); str = NULL; } } /** * cr_rgb_compute_from_percentage: *@a_this: the current instance of #CRRgb * *If the rgb values are expressed in percentage, *compute their real value. * *Returns CR_OK upon successful completion, an error code otherwise. */ enum CRStatus cr_rgb_compute_from_percentage (CRRgb * a_this) { g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); if (a_this->is_percentage == FALSE) return CR_OK; a_this->red = a_this->red * 255 / 100; a_this->green = a_this->green * 255 / 100; a_this->blue = a_this->blue * 255 / 100; a_this->is_percentage = FALSE; return CR_OK; } /** * cr_rgb_set: *@a_this: the current instance of #CRRgb. *@a_red: the red value. *@a_green: the green value. *@a_blue: the blue value. * *Sets rgb values to the RGB. * *Returns CR_OK upon successful completion, an error code *otherwise. */ enum CRStatus cr_rgb_set (CRRgb * a_this, gulong a_red, gulong a_green, gulong a_blue, gboolean a_is_percentage) { g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR); if (a_is_percentage != FALSE) { g_return_val_if_fail (a_red <= 100 && a_green <= 100 && a_blue <= 100, CR_BAD_PARAM_ERROR); } a_this->is_percentage = a_is_percentage; a_this->red = a_red; a_this->green = a_green; a_this->blue = a_blue; a_this->inherit = FALSE ; a_this->is_transparent = FALSE ; return CR_OK; } /** * cr_rgb_set_to_inherit: *@a_this: the current instance of #CRRgb * *sets the value of the rgb to inherit. *Look at the css spec from chapter 6.1 to 6.2 to understand *the meaning of "inherit". * * Returns CR_OK upon succesful completion, an error code otherwise. */ enum CRStatus cr_rgb_set_to_inherit (CRRgb *a_this, gboolean a_inherit) { g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR) ; a_this->inherit = a_inherit ; return CR_OK ; } /** * cr_rgb_is_set_to_inherit: * * @a_this: the current instance of #CRRgb. * * Returns TRUE if the rgb is set to the value "inherit", FALSE otherwise. */ gboolean cr_rgb_is_set_to_inherit (CRRgb const *a_this) { g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR) ; return a_this->inherit ; } /** * cr_rgb_is_set_to_transparent: *@a_this: the current instance of *#CRRgb * *Tests if the the rgb is set to the *value "transparent" or not. * *Returns TRUE if the rgb has been set to *transparent, FALSE otherwise. */ gboolean cr_rgb_is_set_to_transparent (CRRgb const *a_this) { g_return_val_if_fail (a_this, FALSE) ; return a_this->is_transparent ; } /** * cr_rgb_set_to_transparent: *@a_this: the current instance of #CRRgb *@a_is_transparent: set to transparent or not. * *Sets the rgb to the "transparent" value (or not) *Returns CR_OK upon successfull completion, an error code otherwise. */ enum CRStatus cr_rgb_set_to_transparent (CRRgb *a_this, gboolean a_is_transparent) { g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR) ; a_this->is_transparent = a_is_transparent ; return CR_OK ; } /** * cr_rgb_set_from_rgb: *@a_this: the current instance of #CRRgb. *@a_rgb: the rgb to "copy" * *Sets the rgb from an other one. * *Returns CR_OK upon successful completion, an error code otherwise. */ enum CRStatus cr_rgb_set_from_rgb (CRRgb * a_this, CRRgb const * a_rgb) { g_return_val_if_fail (a_this && a_rgb, CR_BAD_PARAM_ERROR); cr_rgb_copy (a_this, a_rgb) ; return CR_OK; } static int cr_rgb_color_name_compare (const void *a, const void *b) { const char *a_color_name = a; const CRRgb *rgb = b; return g_ascii_strcasecmp (a_color_name, (const char *) rgb->name); } /** * cr_rgb_set_from_name: * @a_this: the current instance of #CRRgb * @a_color_name: the color name * * Returns CR_OK upon successful completion, an error code otherwise. */ enum CRStatus cr_rgb_set_from_name (CRRgb * a_this, const guchar * a_color_name) { enum CRStatus status = CR_OK; CRRgb *result; g_return_val_if_fail (a_this && a_color_name, CR_BAD_PARAM_ERROR); result = bsearch (a_color_name, gv_standard_colors, G_N_ELEMENTS (gv_standard_colors), sizeof (gv_standard_colors[0]), cr_rgb_color_name_compare); if (result != NULL) cr_rgb_set_from_rgb (a_this, result); else status = CR_UNKNOWN_TYPE_ERROR; return status; } /** * cr_rgb_set_from_hex_str: * @a_this: the current instance of #CRRgb * @a_hex: the hexadecimal value to set. * * Returns CR_OK upon successful completion. */ enum CRStatus cr_rgb_set_from_hex_str (CRRgb * a_this, const guchar * a_hex) { enum CRStatus status = CR_OK; gulong i = 0; guchar colors[3] = { 0 }; g_return_val_if_fail (a_this && a_hex, CR_BAD_PARAM_ERROR); if (strlen ((const char *) a_hex) == 3) { for (i = 0; i < 3; i++) { if (a_hex[i] >= '0' && a_hex[i] <= '9') { colors[i] = a_hex[i] - '0'; colors[i] = (colors[i] << 4) | colors[i]; } else if (a_hex[i] >= 'a' && a_hex[i] <= 'z') { colors[i] = 10 + a_hex[i] - 'a'; colors[i] = (colors[i] << 4) | colors[i]; } else if (a_hex[i] >= 'A' && a_hex[i] <= 'Z') { colors[i] = 10 + a_hex[i] - 'A'; colors[i] = (colors[i] << 4) | colors[i]; } else { status = CR_UNKNOWN_TYPE_ERROR; } } } else if (strlen ((const char *) a_hex) == 6) { for (i = 0; i < 6; i++) { if (a_hex[i] >= '0' && a_hex[i] <= '9') { colors[i / 2] <<= 4; colors[i / 2] |= a_hex[i] - '0'; status = CR_OK; } else if (a_hex[i] >= 'a' && a_hex[i] <= 'z') { colors[i / 2] <<= 4; colors[i / 2] |= 10 + a_hex[i] - 'a'; status = CR_OK; } else if (a_hex[i] >= 'A' && a_hex[i] <= 'Z') { colors[i / 2] <<= 4; colors[i / 2] |= 10 + a_hex[i] - 'A'; status = CR_OK; } else { status = CR_UNKNOWN_TYPE_ERROR; } } } else { status = CR_UNKNOWN_TYPE_ERROR; } if (status == CR_OK) { status = cr_rgb_set (a_this, colors[0], colors[1], colors[2], FALSE); cr_rgb_set_to_transparent (a_this, FALSE) ; } return status; } /** * cr_rgb_set_from_term: *@a_this: the instance of #CRRgb to set *@a_value: the terminal from which to set * *Set the rgb from a terminal symbol * * Returns CR_OK upon successful completion, an error code otherwise. */ enum CRStatus cr_rgb_set_from_term (CRRgb *a_this, const struct _CRTerm *a_value) { enum CRStatus status = CR_OK ; g_return_val_if_fail (a_this && a_value, CR_BAD_PARAM_ERROR) ; switch(a_value->type) { case TERM_RGB: if (a_value->content.rgb) { cr_rgb_set_from_rgb (a_this, a_value->content.rgb) ; } break ; case TERM_IDENT: if (a_value->content.str && a_value->content.str->stryng && a_value->content.str->stryng->str) { if (!strncmp ("inherit", a_value->content.str->stryng->str, sizeof ("inherit")-1)) { a_this->inherit = TRUE; a_this->is_transparent = FALSE ; } else { status = cr_rgb_set_from_name (a_this, (const guchar *) a_value->content.str->stryng->str) ; } } else { cr_utils_trace_info ("a_value has NULL string value") ; } break ; case TERM_HASH: if (a_value->content.str && a_value->content.str->stryng && a_value->content.str->stryng->str) { status = cr_rgb_set_from_hex_str (a_this, (const guchar *) a_value->content.str->stryng->str) ; } else { cr_utils_trace_info ("a_value has NULL string value") ; } break ; default: status = CR_UNKNOWN_TYPE_ERROR ; } return status ; } enum CRStatus cr_rgb_copy (CRRgb *a_dest, CRRgb const *a_src) { g_return_val_if_fail (a_dest && a_src, CR_BAD_PARAM_ERROR) ; memcpy (a_dest, a_src, sizeof (CRRgb)) ; return CR_OK ; } /** * cr_rgb_destroy: *@a_this: the "this pointer" of the *current instance of #CRRgb. * *Destructor of #CRRgb. */ void cr_rgb_destroy (CRRgb * a_this) { g_return_if_fail (a_this); g_free (a_this); } /** * cr_rgb_parse_from_buf: *@a_str: a string that contains a color description *@a_enc: the encoding of a_str * *Parses a text buffer that contains a rgb color * *Returns the parsed color, or NULL in case of error */ CRRgb * cr_rgb_parse_from_buf (const guchar *a_str, enum CREncoding a_enc) { enum CRStatus status = CR_OK ; CRTerm *value = NULL ; CRParser * parser = NULL; CRRgb *result = NULL; g_return_val_if_fail (a_str, NULL); parser = cr_parser_new_from_buf ((guchar *) a_str, strlen ((const char *) a_str), a_enc, FALSE); g_return_val_if_fail (parser, NULL); status = cr_parser_try_to_skip_spaces_and_comments (parser) ; if (status != CR_OK) goto cleanup; status = cr_parser_parse_term (parser, &value); if (status != CR_OK) goto cleanup; result = cr_rgb_new (); if (!result) goto cleanup; status = cr_rgb_set_from_term (result, value); cleanup: if (parser) { cr_parser_destroy (parser); parser = NULL; } if (value) { cr_term_destroy(value); value = NULL; } return result ; }