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/* $Id: panel.priv.h,v 1.13 2000/01/15 20:39:53 juergen Exp $ */
#ifndef _PANEL_PRIV_H
#define _PANEL_PRIV_H
#if HAVE_CONFIG_H
# include <ncurses_cfg.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#if HAVE_LIBDMALLOC
# include <dmalloc.h> /* Gray Watson's library */
#endif
#if HAVE_LIBDBMALLOC
# include <dbmalloc.h> /* Conor Cahill's library */
#endif
#include <nc_panel.h>
#include "panel.h"
#if ( CC_HAS_INLINE_FUNCS && !defined(TRACE) )
# define INLINE inline
#else
# define INLINE
#endif
#ifdef USE_RCS_IDS
# define MODULE_ID(id) static const char Ident[] = id;
#else
# define MODULE_ID(id) /*nothing*/
#endif
#ifdef TRACE
extern const char *_nc_my_visbuf(const void *);
# ifdef TRACE_TXT
# define USER_PTR(ptr) _nc_visbuf((const char *)ptr)
# else
# define USER_PTR(ptr) _nc_my_visbuf((const char *)ptr)
# endif
extern void _nc_dPanel(const char*, const PANEL*);
extern void _nc_dStack(const char*, int, const PANEL*);
extern void _nc_Wnoutrefresh(const PANEL*);
extern void _nc_Touchpan(const PANEL*);
extern void _nc_Touchline(const PANEL*, int, int);
# define dBug(x) _tracef x
# define dPanel(text,pan) _nc_dPanel(text,pan)
# define dStack(fmt,num,pan) _nc_dStack(fmt,num,pan)
# define Wnoutrefresh(pan) _nc_Wnoutrefresh(pan)
# define Touchpan(pan) _nc_Touchpan(pan)
# define Touchline(pan,start,count) _nc_Touchline(pan,start,count)
#else /* !TRACE */
# define dBug(x)
# define dPanel(text,pan)
# define dStack(fmt,num,pan)
# define Wnoutrefresh(pan) wnoutrefresh((pan)->win)
# define Touchpan(pan) touchwin((pan)->win)
# define Touchline(pan,start,count) touchline((pan)->win,start,count)
#endif
#define _nc_stdscr_pseudo_panel _nc_panelhook()->stdscr_pseudo_panel
#define _nc_top_panel _nc_panelhook()->top_panel
#define _nc_bottom_panel _nc_panelhook()->bottom_panel
#define EMPTY_STACK() (_nc_top_panel==_nc_bottom_panel)
#define Is_Bottom(p) (((p)!=(PANEL*)0) && !EMPTY_STACK() && (_nc_bottom_panel->above==(p)))
#define Is_Top(p) (((p)!=(PANEL*)0) && !EMPTY_STACK() && (_nc_top_panel==(p)))
#define Is_Pseudo(p) ((p) && ((p)==_nc_bottom_panel))
/* borrowed from curses.priv.h */
#define CHANGED_RANGE(line,start,end) \
if (line->firstchar == _NOCHANGE \
|| line->firstchar > (start)) \
line->firstchar = start; \
if (line->lastchar == _NOCHANGE \
|| line->lastchar < (end)) \
line->lastchar = end
/*+-------------------------------------------------------------------------
IS_LINKED(pan) - check to see if panel is in the stack
--------------------------------------------------------------------------*/
/* This works! The only case where it would fail is, when the list has
only one element. But this could only be the pseudo panel at the bottom */
#define IS_LINKED(p) (((p)->above || (p)->below ||((p)==_nc_bottom_panel)) ? TRUE : FALSE)
#define PSTARTX(pan) ((pan)->win->_begx)
#define PENDX(pan) ((pan)->win->_begx + getmaxx((pan)->win) - 1)
#define PSTARTY(pan) ((pan)->win->_begy)
#define PENDY(pan) ((pan)->win->_begy + getmaxy((pan)->win) - 1)
/*+-------------------------------------------------------------------------
PANELS_OVERLAPPED(pan1,pan2) - check panel overlapped
---------------------------------------------------------------------------*/
#define PANELS_OVERLAPPED(pan1,pan2) \
(( !(pan1) || !(pan2) || \
PSTARTY(pan1) > PENDY(pan2) || PENDY(pan1) < PSTARTY(pan2) ||\
PSTARTX(pan1) > PENDX(pan2) || PENDX(pan1) < PSTARTX(pan2) ) \
? FALSE : TRUE)
/*+-------------------------------------------------------------------------
Compute the intersection rectangle of two overlapping rectangles
---------------------------------------------------------------------------*/
#define COMPUTE_INTERSECTION(pan1,pan2,ix1,ix2,iy1,iy2)\
ix1 = (PSTARTX(pan1) < PSTARTX(pan2)) ? PSTARTX(pan2) : PSTARTX(pan1);\
ix2 = (PENDX(pan1) < PENDX(pan2)) ? PENDX(pan1) : PENDX(pan2);\
iy1 = (PSTARTY(pan1) < PSTARTY(pan2)) ? PSTARTY(pan2) : PSTARTY(pan1);\
iy2 = (PENDY(pan1) < PENDY(pan2)) ? PENDY(pan1) : PENDY(pan2);\
assert((ix1<=ix2) && (iy1<=iy2));\
/*+-------------------------------------------------------------------------
Walk through the panel stack starting at the given location and
check for intersections; overlapping panels are "touched", so they
are incrementally overwriting cells that should be hidden.
If the "touch" flag is set, the panel gets touched before it is
updated.
---------------------------------------------------------------------------*/
#define PANEL_UPDATE(pan,panstart,touch)\
{ PANEL* pan2 = ((panstart) ? (panstart) : _nc_bottom_panel);\
if (touch)\
Touchpan(pan);\
while(pan2) {\
if ((pan2 != pan) && PANELS_OVERLAPPED(pan,pan2)) {\
int y,ix1,ix2,iy1,iy2;\
COMPUTE_INTERSECTION(pan,pan2,ix1,ix2,iy1,iy2);\
for(y = iy1; y <= iy2; y++) {\
if (is_linetouched(pan->win,y - PSTARTY(pan))) {\
struct ldat* line = &(pan2->win->_line[y - PSTARTY(pan2)]);\
CHANGED_RANGE(line,ix1-PSTARTX(pan2),ix2-PSTARTX(pan2));\
}\
}\
}\
pan2 = pan2->above;\
}\
}
/*+-------------------------------------------------------------------------
Remove panel from stack.
---------------------------------------------------------------------------*/
#define PANEL_UNLINK(pan,err) \
{ err = ERR;\
if (pan) {\
if (IS_LINKED(pan)) {\
if ((pan)->below)\
(pan)->below->above = (pan)->above;\
if ((pan)->above)\
(pan)->above->below = (pan)->below;\
if ((pan) == _nc_bottom_panel) \
_nc_bottom_panel = (pan)->above;\
if ((pan) == _nc_top_panel) \
_nc_top_panel = (pan)->below;\
err = OK;\
}\
(pan)->above = (pan)->below = (PANEL*)0;\
}\
}
#define HIDE_PANEL(pan,err,err_if_unlinked)\
if (IS_LINKED(pan)) {\
PANEL_UPDATE(pan,(PANEL*)0,TRUE);\
PANEL_UNLINK(pan,err);\
} \
else {\
if (err_if_unlinked)\
err = ERR;\
}
#endif /* _PANEL_PRIV_H */
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