#ifndef GEMTK_H_INCLUDED
#define GEMTK_H_INCLUDED

#include <gem.h>
#include <mint/osbind.h>
#include <mint/cookie.h>
#include <stdint.h>
#include <stdbool.h>

/* System type detection added by [GS]  */
/* detect the system type, AES + kernel */
#define SYS_TOS    0x0001
#define SYS_MAGIC  0x0002
#define SYS_MINT   0x0004
#define SYS_GENEVA 0x0010
#define SYS_NAES   0x0020
#define SYS_XAAES  0x0040
#define sys_type()    (_systype_v ? _systype_v : _systype())
#define sys_MAGIC()   ((sys_type() & SYS_MAGIC) != 0)
#define sys_NAES()    ((sys_type() & SYS_NAES)  != 0)
#define sys_XAAES()   ((sys_type() & SYS_XAAES) != 0)

#define TOS4VER 0x03300 /* this is assumed to be the last single tasking OS */

extern unsigned short _systype_v;

/*
	Utils
*/
unsigned short _systype (void);
OBJECT *get_tree( int idx );

/*
*	MultiTOS Drag&Drop
*/
short ddcreate(short *pipe);
short ddmessage(short apid, short fd, short winid, short mx, short my, short kstate, short pipename);
short ddrexts(short fd, char *exts);
short ddstry(short fd, char *ext, char *text, char *name, long size);
void ddclose(short fd);
void ddgetsig(long *oldsig);
void ddsetsig(long oldsig);
short ddopen(short ddnam, char ddmsg);
short ddsexts(short fd, char *exts);
short ddrtry(short fd, char *name, char *file, char *whichext, long *size);
short ddreply(short fd, char ack);

/*
	Message box
*/
#define MSG_BOX_ALERT	1
#define MSG_BOX_CONFIRM	2

short msg_box_show(short type, const char * msg);

/*
	Guiwin
*/
#define GW_FLAG_PREPROC_WM			0x01	// let guiwin API handle some events
#define GW_FLAG_RECV_PREPROC_WM		0x02	// get notified even when pre-processed
#define GW_FLAG_HAS_VTOOLBAR		0x04	// the attached toolbar is vertical
#define GW_FLAG_CUSTOM_TOOLBAR		0x08	// no internal toolbar handling
#define GW_FLAG_TOOLBAR_REDRAW      0x10	// enable internal toolbar redraw
#define GW_FLAG_CUSTOM_SCROLLING	0x20	// no internal scroller handling

#define GW_FLAG_DEFAULTS (GW_FLAG_PREPROC_WM | GW_FLAG_RECV_PREPROC_WM \
                            | GW_FLAG_TOOLBAR_REDRAW)

#define GW_STATUS_ICONIFIED			0x01
#define GW_STATUS_SHADED			0x02

#define GUIWIN_VSLIDER 				0x01
#define GUIWIN_HSLIDER 				0x02
#define GUIWIN_VH_SLIDER 			0x03

struct gui_window_s;
typedef struct gui_window_s GUIWIN;
typedef short (*guiwin_event_handler_f)(GUIWIN *gw,
										EVMULT_OUT *ev_out, short msg[8]);
struct guiwin_scroll_info_s {
	int x_unit_px;
	int y_unit_px;
	int x_pos;
	int y_pos;
	int x_units;
	int y_units;
};

enum guwin_area_e {
	GUIWIN_AREA_WORK = 0,
	GUIWIN_AREA_TOOLBAR,
	GUIWIN_AREA_CONTENT
};

short guiwin_init(void);
void guiwin_exit(void);
GUIWIN * guiwin_add(short handle, uint32_t flags,
					guiwin_event_handler_f handler);
GUIWIN *guiwin_find(short handle);
short guiwin_remove(GUIWIN *win);
GUIWIN *guiwin_validate_ptr(GUIWIN *win);
short guiwin_dispatch_event(EVMULT_IN *ev_in, EVMULT_OUT *ev_out,
									short msg[8]);
void guiwin_get_grect(GUIWIN *win, enum guwin_area_e mode, GRECT *dest);
short guiwin_get_handle(GUIWIN *win);
uint32_t guiwin_get_state(GUIWIN *win);
void guiwin_set_toolbar(GUIWIN *win, OBJECT *toolbar, short idx,
						uint32_t flags);
void guiwin_set_event_handler(GUIWIN *win,guiwin_event_handler_f cb);
void guiwin_set_user_data(GUIWIN *win, void *data);
void *guiwin_get_user_data(GUIWIN *win);
struct guiwin_scroll_info_s * guiwin_get_scroll_info(GUIWIN *win);
bool guiwin_update_slider(GUIWIN *win, short mode);
void guiwin_scroll(GUIWIN *gw, short orientation, int units, bool refresh);
void guiwin_send_redraw(GUIWIN *win, GRECT *area);
VdiHdl guiwin_get_vdi_handle(GUIWIN *win);
bool guiwin_has_intersection(GUIWIN *win, GRECT *work);
void guiwin_toolbar_redraw(GUIWIN *win, GRECT *clip);
void guiwin_clear(GUIWIN *win);


/*
* 	AES Scroller Object
*/

#ifndef POINT_WITHIN
#define POINT_WITHIN(_x,_y, r) ((_x >= r.g_x) && (_x <= r.g_x + r.g_w ) \
		&& (_y >= r.g_y) && (_y <= r.g_y + r.g_h))
#endif

#ifndef RC_WITHIN
#define RC_WITHIN(a,b) \
    (((a)->g_x >= (b)->g_x) \
        && (((a)->g_x + (a)->g_w) <= ((b)->g_x + (b)->g_w))) \
            && (((a)->g_y >= (b)->g_y) \
                && (((a)->g_y + (a)->g_h) <= ((b)->g_y + (b)->g_h)))
#endif

#ifndef MAX
#define MAX(_a,_b) ((_a>_b) ? _a : _b)
#endif

#ifndef MIN
#define MIN(_a,_b) ((_a<_b) ? _a : _b)
#endif

#endif // GEMTK_H_INCLUDED