waveblender/ui.h

#ifndef UI_H
#define UI_H
#include <stdint.h>

void ui_init(void);

#define ENTRY_TYPE_TEXT 0
#define ENTRY_TYPE_BOOL 1
#define ENTRY_TYPE_DEC  2
#define ENTRY_TYPE_HEX  3

#define MAX_ENTRY 8



struct display_menu {
    struct display_menu *next;
    int entry_n;
    struct display_menu_entry {
        int type;
        char label[16];
        void (*action)(struct display_menu_entry *item, uint8_t button);
        int min, max, step;
        int *var;
        const void *arg;
    } entry[MAX_ENTRY];

};

const struct display_menu MainMenu, MeasureMenu, SignalGenMenu,
      ExtraMenu;

void ui_display_menu(const struct display_menu *menu);
void ui_button_press(uint8_t b, int hold);

struct display_menu *CurrentMenu;

/* Defined in main to intercept input controls */
void set_input_callback(void (*cb)(uint8_t press, int hold));
void clear_input_callback(void);
void set_keepalive(void (*cb)(void));
void clear_keepalive(void);
int ui_get_menu_selection(void);

#endif