Files
mongoose-touch/include/widget.h
2017-11-26 14:18:43 +01:00

47 lines
1.4 KiB
C

#ifndef __WIDGET_H
#define __WIDGET_H
#include "common/queue.h"
struct widget_t;
#define EV_WIDGET_NONE 0
#define EV_WIDGET_CREATE 1
#define EV_WIDGET_DESTROY 2
#define EV_WIDGET_DRAW 3
#define EV_WIDGET_REDRAW 4
#define EV_WIDGET_TIMER 5
#define EV_WIDGET_TOUCH_UP 6
#define EV_WIDGET_TOUCH_DOWN 7
typedef void (*widget_event_fn)(int ev, struct widget_t *w, void *ev_data);
struct widget_t {
uint16_t x, y, w, h;
uint32_t timer_msec; // 0 to disable
widget_event_fn handler; // Event callback for this widget
void *user_data; // User supplied data
// Private
mgos_timer_id _timer_id;
};
struct widget_list_t {
struct widget_t *widget;
SLIST_ENTRY(widget_list_t) entries;
};
struct widget_t *widget_add(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint32_t timer_msec, widget_event_fn handler, void *user_data);
struct widget_t *widget_add_from_file(const char *fn, uint32_t timer_msec, widget_event_fn handler, void *user_data);
struct widget_t *widget_find(uint16_t x, uint16_t y);
void widget_remove(struct widget_t *widget);
struct widget_t *widget_create(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint32_t timer_msec, widget_event_fn handler, void *user_data);
struct widget_t *widget_create_from_file(const char *fn);
struct widget_t *widget_create_from_json(const char *json);
void widget_destroy(struct widget_t **widget);
#endif // __WIDGET_H