system_colour.c

Go to the documentation of this file.

/*
 * Copyright 2011 Vincent Sanders <vince@netsurf-browser.org>
 *
 * This file is part of NetSurf, http://www.netsurf-browser.org/
 *
 * NetSurf is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * NetSurf 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 General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
/**
 * \file
 * System colour handling implementation.
 */
 
#include <string.h>
 
#include "utils/config.h"
#include "utils/utils.h"
#include "utils/log.h"
#include "utils/nsoption.h"
#include "netsurf/css.h"
 
#include "desktop/system_colour.h"
 
#define colour_list_len ((NSOPTION_SYS_COLOUR_END - NSOPTION_SYS_COLOUR_START) + 1)
 
static lwc_string *colour_list[colour_list_len];
 
static lwc_string **ns_system_colour_pw = NULL;
 
 
/* exported interface documented in desktop/system_colour.h */
nserror ns_system_colour_init(void)
{
        unsigned int ccount;
 
        if (ns_system_colour_pw != NULL)
                return NSERROR_INIT_FAILED;
 
        /* Intern colour strings */
        for (ccount = 0; ccount < colour_list_len; ccount++) {
                struct nsoption_s *opt;
                opt = &nsoptions[ccount + NSOPTION_SYS_COLOUR_START];
                if (lwc_intern_string(opt->key + SLEN("sys_colour_"),
                                      opt->key_len - SLEN("sys_colour_"),
                                      &(colour_list[ccount])) != lwc_error_ok) {
                        return NSERROR_NOMEM;
                }
        }
 
        ns_system_colour_pw = colour_list;
 
        return NSERROR_OK;
}
 
 
/* exported interface documented in desktop/system_colour.h */
void ns_system_colour_finalize(void)
{
        unsigned int ccount;
 
        for (ccount = 0; ccount < colour_list_len; ccount++) {
                lwc_string_unref(colour_list[ccount]);
        }
}
 
 
/* exported interface documented in desktop/system_colour.h */
nserror ns_system_colour_char(const char *name, colour *colour_out)
{
        unsigned int ccount;
 
        for (ccount = 0; ccount < colour_list_len; ccount++) {
                if (strcmp(name,
                           nsoptions[ccount + NSOPTION_SYS_COLOUR_START].key + SLEN("sys_colour_")) == 0) {
                        *colour_out = nsoptions[ccount + NSOPTION_SYS_COLOUR_START].value.c;
                        return NSERROR_OK;
                }
        }
 
        return NSERROR_INVALID;
}
 
 
/* exported interface documented in desktop/system_colour.h */
css_error ns_system_colour(void *pw, lwc_string *name, css_color *colour)
{
        unsigned int ccount;
        bool match;
 
        for (ccount = 0; ccount < colour_list_len; ccount++) {
                if (lwc_string_caseless_isequal(name,
                                colour_list[ccount],
                                &match) == lwc_error_ok && match) {
                        *colour = ns_color_to_nscss(nsoptions[ccount + NSOPTION_SYS_COLOUR_START].value.c);
                        return CSS_OK;
                }
        }
 
        return CSS_INVALID;
}