kolibrios-gitea/contrib/C_Layer/INCLUDE/kolibri_msgbox.h

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#ifndef KOLIBRI_MSGBOX_H
#define KOLIBRI_MSGBOX_H
#include <stdarg.h>
typedef struct __attribute__ ((__packed__)) {
uint8_t retval; // 0 - win closed, 1 to n - button num, also default button on start
uint8_t reserv;
char texts[2048]; // must be enough ;-)
char msgbox_stack[1024];
uint32_t top_stack;
} msgbox;
typedef void (*msgbox_callback)(void);
static int msgbox_inited;
extern void kolibri_msgbox_init();
extern void (*msgbox_create)(msgbox *, void *thread) __attribute__((__stdcall__)); // clears callbacks, ! if fix lib, we can return eax as of Fn51
extern void (*msgbox_setfunctions)(msgbox_callback*) __attribute__((__stdcall__)); // must be called immediately after create, zero-ended array
extern void (*msgbox_reinit)(msgbox *) __attribute__((__stdcall__)); // recalc sizes when structure changes, called auto when MsgBoxCreate
static inline msgbox* kolibri_new_msgbox(char* title, char* text, int def_but, ...)
/// text can be multilined by code 13 = "\r"
/// def_but - highlighted and used on Enter (if zero - default is [X]), user may use Tabs or Arrows
/// last params are buttons text, max 8. last must set as NULL
{
va_list vl;
va_start(vl, def_but);
msgbox* box = calloc(sizeof(msgbox), 1);
box->retval = (uint8_t)def_but;
char *pc = box->texts;
strcpy(pc, title);
pc += strlen(title) + 1;
strcpy(pc, text);
pc += strlen(text) + 1;
char *but_text = va_arg(vl, char*);
while (but_text)
{
strcpy(pc, but_text);
pc += strlen(but_text) + 1;
// assert(pc - box->texts < sizeof box->texts);
but_text = va_arg(vl, char*);
}
va_end(vl);
return box;
}
static inline void kolibri_start_msgbox(msgbox* box, msgbox_callback cb[])
{
if (!msgbox_inited)
{
kolibri_msgbox_init();
msgbox_inited++;
}
(*msgbox_create)(box, &box->top_stack);
if (cb) (*msgbox_setfunctions)(cb);
}
#endif