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/* Copyright 2011 Pierre Ossman <ossman@cendio.se> for Cendio AB
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __FLTK_UTIL_H__
#define __FLTK_UTIL_H__
#include <FL/Fl_Menu_.H>
/* Escapes all @ in text as those have special meaning in labels */
static inline size_t fltk_escape(const char *in, char *out, size_t maxlen)
{
size_t len;
len = 0;
while (*in != '\0') {
if (*in == '@') {
if (maxlen >= 3) {
*out++ = '@';
*out++ = '@';
maxlen -= 2;
}
len += 2;
} else {
if (maxlen >= 2) {
*out++ = *in;
maxlen--;
}
len += 1;
}
in++;
}
if (maxlen)
*out = '\0';
return len;
}
/* Filter out unsafe characters for menu entries */
static inline size_t fltk_menu_escape(const char *in, char *out, size_t maxlen)
{
size_t len;
len = 0;
while (*in != '\0') {
if (*in == '/') {
if (maxlen >= 3) {
*out++ = '\\';
*out++ = '/';
maxlen -= 2;
}
len += 2;
} else {
if (maxlen >= 2) {
*out++ = *in;
maxlen--;
}
len += 1;
}
in++;
}
if (maxlen)
*out = '\0';
return len;
}
/* Helper to add menu entries safely */
static inline void fltk_menu_add(Fl_Menu_ *menu, const char *text,
int shortcut, Fl_Callback *cb,
void *data=nullptr, int flags=0)
{
char buffer[1024];
if (fltk_menu_escape(text, buffer, sizeof(buffer)) >= sizeof(buffer))
return;
menu->add(buffer, shortcut, cb, data, flags);
}
#endif
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