u-boot/board/MAI/menu/menu.c

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C
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#include "menu.h"
#define SINGLE_BOX 0
#define DOUBLE_BOX 1
void video_draw_box(int style, int attr, char *title, int separate, int x, int y, int w, int h);
void video_draw_text(int x, int y, int attr, char *text);
void video_save_rect(int x, int y, int w, int h, void *save_area, int clearchar, int clearattr);
void video_restore_rect(int x, int y, int w, int h, void *save_area);
int video_rows(void);
int video_cols(void);
#define MAX_MENU_OPTIONS 200
typedef struct
{
int used; /* flag if this entry is used */
int entry_x; /* Character column of the menu entry */
int entry_y; /* Character line of the entry */
int option_x; /* Character colum of the option (entry is same) */
} option_data_t;
option_data_t odata[MAX_MENU_OPTIONS];
int normal_attr = 0x0F;
int select_attr = 0x2F;
int disabled_attr = 0x07;
menu_t *root_menu;
int menu_init (menu_t *root)
{
char *s;
int i;
s = getenv("menu_normal");
if (s) normal_attr = atoi(s);
s = getenv("menu_select");
if (s) select_attr = atoi(s);
s = getenv("menu_disabled");
if (s) disabled_attr = atoi(s);
for (i=0; i<MAX_MENU_OPTIONS; i++) odata[i].used = 0;
root_menu = root;
}
option_data_t *menu_alloc_odata(void)
{
int i;
for (int i=0; i<MAX_MENU_OPTIONS; i++)
{
if (odata[i].used == 0) return &odata[i];
}
return NULL;
}
void menu_free_odata(option_data_t *odata)
{
odata->used = 0;
}
void menu_layout (menu_t *menu)
{