#ifndef XEVENTS_H_INCLUDED
#define XEVENTS_H_INCLUDED

/* $Id: xevents.h,v 1.3 1997/10/21 22:44:35 mb Exp mb $
 * 
 * Copyright (c) 1994-97 Martin Buck  <martin-2.buck@student.uni-ulm.de>
 * Read COPYING for more information
 */


#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <xview/xview.h>
#include <xview/frame.h>
#include <xview/panel.h>
#include <xview/canvas.h>
#include <xview/notify.h>
#include "vtxdecode.h"


#define NO_UPDATE  0		/* Don't change these defines !!! */
#define HDR_UPDATE 1
#define SCR_UPDATE 2

/* Execute CCT-function `cmd' & check status; if operation failed, display function-name
 * `func_str' & ask whether to retry or cancel the operation; if user selects cancel, close
 * device & execute command `fail'
 */
#define CCTCHK(cmd, func_str, fail) \
        do { \
          int cctretval = 0; \
          do { \
            if (cctretval < 0 && report_cct_error(cctretval, func_str)) { \
              cct_close(); \
              hotlist_set_current(0); \
              vtx_dev_open = FALSE; \
              fail; \
            } \
          } while ((cctretval = cmd) < 0); \
        } while (0)


typedef struct selection_s {
  int sel_x[2], sel_y[2], last_x, last_y;
  int disp_x[2], disp_y[2];
  int rect, expand, drag, show, init;
} selection_t;
typedef struct vtxpgwin_s {
  Window winid;
  GC gc;
  Canvas canvas, canvas_bg;
  vtxpage_t *page, *curr_disp;
  selection_t sel;
  int pgnum, subpgnum, font, hidden, flash_state, stopped, update;
} vtxpgwin_t;


extern vtxpgwin_t vtxwin;
extern byte_t vtx_buffer[];
extern int keep_closed, do_dither, tuner_dev_open;
extern XComposeStatus compose_status;


void xquit(void);
void xabort(void);
int report_cct_error(int err, const char *err_func_str);
void report_tuner_error(int err, const char *err_func_str);
Notify_value signal_handler(Notify_client client, int signum, Notify_signal_mode when);
void frame_proc(Xv_window window, const Event *event);
void font_menu_proc(Menu menu, Menu_item menu_item);
void update_menu_proc(Menu menu, Menu_item menu_item);
void checkbox_proc(void);
void intv_reveal_proc(void);
int new_station(int station, int full_reset);
void reset_proc(void);
void get_index_page(void);
void open_device(void);
void close_device(void);
void pginc_proc(void);
void pgdec_proc(void);
void subpginc_proc(void);
void subpgdec_proc(void);
void subpgroll_proc(void);
Panel_setting pgnum_proc(void);
Panel_setting pgnum_bg_proc(void);
void update_pagenumdisp(int page, int subpage, int numsubpages, int cachecount);
Notify_value update_proc(void);
void canvas_repaint(Canvas canvas, Xv_window window, const Rectlist *area);
void canvas_proc(Xv_window window, const Event *event);
Notify_value check_hotkeys_meta(Panel panel, const Event *event, Notify_arg arg,
    Notify_event_type type);
Notify_value check_hotkeys_nometa(Panel panel, const Event *event, Notify_arg arg,
    Notify_event_type type);
void x_main_loop(void);
int x_extract_pgnum(const vtxpgwin_t *vtxwin, int x, int y);
int x_vtx_redraw(const vtxpgwin_t *vtxwin, int x1, int y1, int x2, int y2, int expose);

#endif /* XEVENTS_H_INCLUDED */