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Diffstat (limited to '')
| -rw-r--r-- | src/st/croco/cr-rgb.c | 604 |
1 files changed, 604 insertions, 0 deletions
diff --git a/src/st/croco/cr-rgb.c b/src/st/croco/cr-rgb.c new file mode 100644 index 0000000..a2b478f --- /dev/null +++ b/src/st/croco/cr-rgb.c @@ -0,0 +1,604 @@ +/* -*- 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 <stdio.h> +#include <string.h> +#include <stdlib.h> +#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, {0,0,0}}, + {(const guchar*)"antiquewhite", 250, 235, 215, FALSE, {0,0,0}}, + {(const guchar*)"aqua", 0, 255, 255, FALSE, {0,0,0}}, + {(const guchar*)"aquamarine", 127, 255, 212, FALSE, {0,0,0}}, + {(const guchar*)"azure", 240, 255, 255, FALSE, {0,0,0}}, + {(const guchar*)"beige", 245, 245, 220, FALSE, {0,0,0}}, + {(const guchar*)"bisque", 255, 228, 196, FALSE, {0,0,0}}, + {(const guchar*)"black", 0, 0, 0, FALSE, {0,0,0}}, + {(const guchar*)"blanchedalmond", 255, 235, 205, FALSE, {0,0,0}}, + {(const guchar*)"blue", 0, 0, 255, FALSE, {0,0,0}}, + {(const guchar*)"blueviolet", 138, 43, 226, FALSE, {0,0,0}}, + {(const guchar*)"brown", 165, 42, 42, FALSE, {0,0,0}}, + {(const guchar*)"burlywood", 222, 184, 135, FALSE, {0,0,0}}, + {(const guchar*)"cadetblue", 95, 158, 160, FALSE, {0,0,0}}, + {(const guchar*)"chartreuse", 127, 255, 0, FALSE, {0,0,0}}, + {(const guchar*)"chocolate", 210, 105, 30, FALSE, {0,0,0}}, + {(const guchar*)"coral", 255, 127, 80, FALSE, {0,0,0}}, + {(const guchar*)"cornflowerblue", 100, 149, 237, FALSE, {0,0,0}}, + {(const guchar*)"cornsilk", 255, 248, 220, FALSE, {0,0,0}}, + {(const guchar*)"crimson", 220, 20, 60, FALSE, {0,0,0}}, + {(const guchar*)"cyan", 0, 255, 255, FALSE, {0,0,0}}, + {(const guchar*)"darkblue", 0, 0, 139, FALSE, {0,0,0}}, + {(const guchar*)"darkcyan", 0, 139, 139, FALSE, {0,0,0}}, + {(const guchar*)"darkgoldenrod", 184, 134, 11, FALSE, {0,0,0}}, + {(const guchar*)"darkgray", 169, 169, 169, FALSE, {0,0,0}}, + {(const guchar*)"darkgreen", 0, 100, 0, FALSE, {0,0,0}}, + {(const guchar*)"darkgrey", 169, 169, 169, FALSE, {0,0,0}}, + {(const guchar*)"darkkhaki", 189, 183, 107, FALSE, {0,0,0}}, + {(const guchar*)"darkmagenta", 139, 0, 139, FALSE, {0,0,0}}, + {(const guchar*)"darkolivegreen", 85, 107, 47, FALSE, {0,0,0}}, + {(const guchar*)"darkorange", 255, 140, 0, FALSE, {0,0,0}}, + {(const guchar*)"darkorchid", 153, 50, 204, FALSE, {0,0,0}}, + {(const guchar*)"darkred", 139, 0, 0, FALSE, {0,0,0}}, + {(const guchar*)"darksalmon", 233, 150, 122, FALSE, {0,0,0}}, + {(const guchar*)"darkseagreen", 143, 188, 143, FALSE, {0,0,0}}, + {(const guchar*)"darkslateblue", 72, 61, 139, FALSE, {0,0,0}}, + {(const guchar*)"darkslategray", 47, 79, 79, FALSE, {0,0,0}}, + {(const guchar*)"darkslategrey", 47, 79, 79, FALSE, {0,0,0}}, + {(const guchar*)"darkturquoise", 0, 206, 209, FALSE, {0,0,0}}, + {(const guchar*)"darkviolet", 148, 0, 211, FALSE, {0,0,0}}, + {(const guchar*)"deeppink", 255, 20, 147, FALSE, {0,0,0}}, + {(const guchar*)"deepskyblue", 0, 191, 255, FALSE, {0,0,0}}, + {(const guchar*)"dimgray", 105, 105, 105, FALSE, {0,0,0}}, + {(const guchar*)"dimgrey", 105, 105, 105, FALSE, {0,0,0}}, + {(const guchar*)"dodgerblue", 30, 144, 255, FALSE, {0,0,0}}, + {(const guchar*)"firebrick", 178, 34, 34, FALSE, {0,0,0}}, + {(const guchar*)"floralwhite", 255, 250, 240, FALSE, {0,0,0}}, + {(const guchar*)"forestgreen", 34, 139, 34, FALSE, {0,0,0}}, + {(const guchar*)"fuchsia", 255, 0, 255, FALSE, {0,0,0}}, + {(const guchar*)"gainsboro", 220, 220, 220, FALSE, {0,0,0}}, + {(const guchar*)"ghostwhite", 248, 248, 255, FALSE, {0,0,0}}, + {(const guchar*)"gold", 255, 215, 0, FALSE, {0,0,0}}, + {(const guchar*)"goldenrod", 218, 165, 32, FALSE, {0,0,0}}, + {(const guchar*)"gray", 128, 128, 128, FALSE, {0,0,0}}, + {(const guchar*)"green", 0, 128, 0, FALSE, {0,0,0}}, + {(const guchar*)"greenyellow", 173, 255, 47, FALSE, {0,0,0}}, + {(const guchar*)"grey", 128, 128, 128, FALSE, {0,0,0}}, + {(const guchar*)"honeydew", 240, 255, 240, FALSE, {0,0,0}}, + {(const guchar*)"hotpink", 255, 105, 180, FALSE, {0,0,0}}, + {(const guchar*)"indianred", 205, 92, 92, FALSE, {0,0,0}}, + {(const guchar*)"indigo", 75, 0, 130, FALSE, {0,0,0}}, + {(const guchar*)"ivory", 255, 255, 240, FALSE, {0,0,0}}, + {(const guchar*)"khaki", 240, 230, 140, FALSE, {0,0,0}}, + {(const guchar*)"lavender", 230, 230, 250, FALSE, {0,0,0}}, + {(const guchar*)"lavenderblush", 255, 240, 245, FALSE, {0,0,0}}, + {(const guchar*)"lawngreen", 124, 252, 0, FALSE, {0,0,0}}, + {(const guchar*)"lemonchiffon", 255, 250, 205, FALSE, {0,0,0}}, + {(const guchar*)"lightblue", 173, 216, 230, FALSE, {0,0,0}}, + {(const guchar*)"lightcoral", 240, 128, 128, FALSE, {0,0,0}}, + {(const guchar*)"lightcyan", 224, 255, 255, FALSE, {0,0,0}}, + {(const guchar*)"lightgoldenrodyellow", 250, 250, 210, FALSE, {0,0,0}}, + {(const guchar*)"lightgray", 211, 211, 211, FALSE, {0,0,0}}, + {(const guchar*)"lightgreen", 144, 238, 144, FALSE, {0,0,0}}, + {(const guchar*)"lightgrey", 211, 211, 211, FALSE, {0,0,0}}, + {(const guchar*)"lightpink", 255, 182, 193, FALSE, {0,0,0}}, + {(const guchar*)"lightsalmon", 255, 160, 122, FALSE, {0,0,0}}, + {(const guchar*)"lightseagreen", 32, 178, 170, FALSE, {0,0,0}}, + {(const guchar*)"lightskyblue", 135, 206, 250, FALSE, {0,0,0}}, + {(const guchar*)"lightslategray", 119, 136, 153, FALSE, {0,0,0}}, + {(const guchar*)"lightslategrey", 119, 136, 153, FALSE, {0,0,0}}, + {(const guchar*)"lightsteelblue", 176, 196, 222, FALSE, {0,0,0}}, + {(const guchar*)"lightyellow", 255, 255, 224, FALSE, {0,0,0}}, + {(const guchar*)"lime", 0, 255, 0, FALSE, {0,0,0}}, + {(const guchar*)"limegreen", 50, 205, 50, FALSE, {0,0,0}}, + {(const guchar*)"linen", 250, 240, 230, FALSE, {0,0,0}}, + {(const guchar*)"magenta", 255, 0, 255, FALSE, {0,0,0}}, + {(const guchar*)"maroon", 128, 0, 0, FALSE, {0,0,0}}, + {(const guchar*)"mediumaquamarine", 102, 205, 170, FALSE, {0,0,0}}, + {(const guchar*)"mediumblue", 0, 0, 205, FALSE, {0,0,0}}, + {(const guchar*)"mediumorchid", 186, 85, 211, FALSE, {0,0,0}}, + {(const guchar*)"mediumpurple", 147, 112, 219, FALSE, {0,0,0}}, + {(const guchar*)"mediumseagreen", 60, 179, 113, FALSE, {0,0,0}}, + {(const guchar*)"mediumslateblue", 123, 104, 238, FALSE, {0,0,0}}, + {(const guchar*)"mediumspringgreen", 0, 250, 154, FALSE, {0,0,0}}, + {(const guchar*)"mediumturquoise", 72, 209, 204, FALSE, {0,0,0}}, + {(const guchar*)"mediumvioletred", 199, 21, 133, FALSE, {0,0,0}}, + {(const guchar*)"midnightblue", 25, 25, 112, FALSE, {0,0,0}}, + {(const guchar*)"mintcream", 245, 255, 250, FALSE, {0,0,0}}, + {(const guchar*)"mistyrose", 255, 228, 225, FALSE, {0,0,0}}, + {(const guchar*)"moccasin", 255, 228, 181, FALSE, {0,0,0}}, + {(const guchar*)"navajowhite", 255, 222, 173, FALSE, {0,0,0}}, + {(const guchar*)"navy", 0, 0, 128, FALSE, {0,0,0}}, + {(const guchar*)"oldlace", 253, 245, 230, FALSE, {0,0,0}}, + {(const guchar*)"olive", 128, 128, 0, FALSE, {0,0,0}}, + {(const guchar*)"olivedrab", 107, 142, 35, FALSE, {0,0,0}}, + {(const guchar*)"orange", 255, 165, 0, FALSE, {0,0,0}}, + {(const guchar*)"orangered", 255, 69, 0, FALSE, {0,0,0}}, + {(const guchar*)"orchid", 218, 112, 214, FALSE, {0,0,0}}, + {(const guchar*)"palegoldenrod", 238, 232, 170, FALSE, {0,0,0}}, + {(const guchar*)"palegreen", 152, 251, 152, FALSE, {0,0,0}}, + {(const guchar*)"paleturquoise", 175, 238, 238, FALSE, {0,0,0}}, + {(const guchar*)"palevioletred", 219, 112, 147, FALSE, {0,0,0}}, + {(const guchar*)"papayawhip", 255, 239, 213, FALSE, {0,0,0}}, + {(const guchar*)"peachpuff", 255, 218, 185, FALSE, {0,0,0}}, + {(const guchar*)"peru", 205, 133, 63, FALSE, {0,0,0}}, + {(const guchar*)"pink", 255, 192, 203, FALSE, {0,0,0}}, + {(const guchar*)"plum", 221, 160, 221, FALSE, {0,0,0}}, + {(const guchar*)"powderblue", 176, 224, 230, FALSE, {0,0,0}}, + {(const guchar*)"purple", 128, 0, 128, FALSE, {0,0,0}}, + {(const guchar*)"red", 255, 0, 0, FALSE, {0,0,0}}, + {(const guchar*)"rosybrown", 188, 143, 143, FALSE, {0,0,0}}, + {(const guchar*)"royalblue", 65, 105, 225, FALSE, {0,0,0}}, + {(const guchar*)"saddlebrown", 139, 69, 19, FALSE, {0,0,0}}, + {(const guchar*)"salmon", 250, 128, 114, FALSE, {0,0,0}}, + {(const guchar*)"sandybrown", 244, 164, 96, FALSE, {0,0,0}}, + {(const guchar*)"seagreen", 46, 139, 87, FALSE, {0,0,0}}, + {(const guchar*)"seashell", 255, 245, 238, FALSE, {0,0,0}}, + {(const guchar*)"sienna", 160, 82, 45, FALSE, {0,0,0}}, + {(const guchar*)"silver", 192, 192, 192, FALSE, {0,0,0}}, + {(const guchar*)"skyblue", 135, 206, 235, FALSE, {0,0,0}}, + {(const guchar*)"slateblue", 106, 90, 205, FALSE, {0,0,0}}, + {(const guchar*)"slategray", 112, 128, 144, FALSE, {0,0,0}}, + {(const guchar*)"slategrey", 112, 128, 144, FALSE, {0,0,0}}, + {(const guchar*)"snow", 255, 250, 250, FALSE, {0,0,0}}, + {(const guchar*)"springgreen", 0, 255, 127, FALSE, {0,0,0}}, + {(const guchar*)"steelblue", 70, 130, 180, FALSE, {0,0,0}}, + {(const guchar*)"tan", 210, 180, 140, FALSE, {0,0,0}}, + {(const guchar*)"teal", 0, 128, 128, FALSE, {0,0,0}}, + {(const guchar*)"thistle", 216, 191, 216, FALSE, {0,0,0}}, + {(const guchar*)"tomato", 255, 99, 71, FALSE, {0,0,0}}, + {(const guchar*)"turquoise", 64, 224, 208, FALSE, {0,0,0}}, + {(const guchar*)"violet", 238, 130, 238, FALSE, {0,0,0}}, + {(const guchar*)"wheat", 245, 222, 179, FALSE, {0,0,0}}, + {(const guchar*)"white", 255, 255, 255, FALSE, {0,0,0}}, + {(const guchar*)"whitesmoke", 245, 245, 245, FALSE, {0,0,0}}, + {(const guchar*)"yellow", 255, 255, 0, FALSE, {0,0,0}}, + {(const guchar*)"yellowgreen", 154, 205, 50, 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 *) 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; + 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); + } + 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) { + 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 ; +} + |