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-rw-r--r--src/3rdparty/libcroco/cr-rgb.c688
1 files changed, 688 insertions, 0 deletions
diff --git a/src/3rdparty/libcroco/cr-rgb.c b/src/3rdparty/libcroco/cr-rgb.c
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--- /dev/null
+++ b/src/3rdparty/libcroco/cr-rgb.c
@@ -0,0 +1,688 @@
+/* -*- 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, 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*)"rebeccapurple", 102, 51, 153, 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 successful 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 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 successful 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 ;
+}
+