contrib/ncurses-5.4/panel/panel.priv.h

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   2  * Copyright (c) 2000 Free Software Foundation, Inc.                        *
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  28
  29 /* $Id: panel.priv.h,v 1.19 2001/06/02 23:31:05 tom Exp $ */
  30
  31 #ifndef NCURSES_PANEL_PRIV_H
  32 #define NCURSES_PANEL_PRIV_H 1
  33
  34 #if HAVE_CONFIG_H
  35 #  include <ncurses_cfg.h>
  36 #endif
  37
  38 #include <stdlib.h>
  39 #include <string.h>
  40 #include <assert.h>
  41
  42 #if HAVE_LIBDMALLOC
  43 #  include <dmalloc.h>    /* Gray Watson's library */
  44 #endif
  45
  46 #if HAVE_LIBDBMALLOC
  47 #  include <dbmalloc.h>   /* Conor Cahill's library */
  48 #endif
  49
  50 #include "curses.priv.h"
  51 #include "panel.h"
  52 #include <nc_panel.h>
  53
  54 #if ( CC_HAS_INLINE_FUNCS && !defined(TRACE) )
  55 #  define INLINE inline
  56 #else
  57 #  define INLINE
  58 #endif
  59
  60 #if USE_RCS_IDS
  61 #  define MODULE_ID(id) static const char Ident[] = id;
  62 #else
  63 #  define MODULE_ID(id) /*nothing*/
  64 #endif
  65
  66
  67 #ifdef TRACE
  68    extern NCURSES_EXPORT(const char *) _nc_my_visbuf (const void *);
  69 #  ifdef TRACE_TXT
  70 #    define USER_PTR(ptr) _nc_visbuf((const char *)ptr)
  71 #  else
  72 #    define USER_PTR(ptr) _nc_my_visbuf((const char *)ptr)
  73 #  endif
  74
  75    extern NCURSES_EXPORT(void) _nc_dPanel (const char*, const PANEL*);
  76    extern NCURSES_EXPORT(void) _nc_dStack (const char*, int, const PANEL*);
  77    extern NCURSES_EXPORT(void) _nc_Wnoutrefresh (const PANEL*);
  78    extern NCURSES_EXPORT(void) _nc_Touchpan (const PANEL*);
  79    extern NCURSES_EXPORT(void) _nc_Touchline (const PANEL*, int, int);
  80
  81 #  define dBug(x) _tracef x
  82 #  define dPanel(text,pan) _nc_dPanel(text,pan)
  83 #  define dStack(fmt,num,pan) _nc_dStack(fmt,num,pan)
  84 #  define Wnoutrefresh(pan) _nc_Wnoutrefresh(pan)
  85 #  define Touchpan(pan) _nc_Touchpan(pan)
  86 #  define Touchline(pan,start,count) _nc_Touchline(pan,start,count)
  87 #else /* !TRACE */
  88 #  define dBug(x)
  89 #  define dPanel(text,pan)
  90 #  define dStack(fmt,num,pan)
  91 #  define Wnoutrefresh(pan) wnoutrefresh((pan)->win)
  92 #  define Touchpan(pan) touchwin((pan)->win)
  93 #  define Touchline(pan,start,count) touchline((pan)->win,start,count)
  94 #endif
  95
  96 #define _nc_stdscr_pseudo_panel _nc_panelhook()->stdscr_pseudo_panel
  97 #define _nc_top_panel _nc_panelhook()->top_panel
  98 #define _nc_bottom_panel _nc_panelhook()->bottom_panel
  99
 100 #define EMPTY_STACK() (_nc_top_panel==_nc_bottom_panel)
 101 #define Is_Bottom(p)  (((p)!=(PANEL*)0) && !EMPTY_STACK() && (_nc_bottom_panel->above==(p)))
 102 #define Is_Top(p) (((p)!=(PANEL*)0) && !EMPTY_STACK() && (_nc_top_panel==(p)))
 103 #define Is_Pseudo(p) ((p) && ((p)==_nc_bottom_panel))
 104
 105 /*+-------------------------------------------------------------------------
 106         IS_LINKED(pan) - check to see if panel is in the stack
 107 --------------------------------------------------------------------------*/
 108 /* This works! The only case where it would fail is, when the list has
 109    only one element. But this could only be the pseudo panel at the bottom */
 110 #define IS_LINKED(p) (((p)->above || (p)->below ||((p)==_nc_bottom_panel)) ? TRUE : FALSE)
 111
 112 #define PSTARTX(pan) ((pan)->win->_begx)
 113 #define PENDX(pan)   ((pan)->win->_begx + getmaxx((pan)->win) - 1)
 114 #define PSTARTY(pan) ((pan)->win->_begy)
 115 #define PENDY(pan)   ((pan)->win->_begy + getmaxy((pan)->win) - 1)
 116
 117 /*+-------------------------------------------------------------------------
 118         PANELS_OVERLAPPED(pan1,pan2) - check panel overlapped
 119 ---------------------------------------------------------------------------*/
 120 #define PANELS_OVERLAPPED(pan1,pan2) \
 121 (( !(pan1) || !(pan2) || \
 122        PSTARTY(pan1) > PENDY(pan2) || PENDY(pan1) < PSTARTY(pan2) ||\
 123        PSTARTX(pan1) > PENDX(pan2) || PENDX(pan1) < PSTARTX(pan2) ) \
 124      ? FALSE : TRUE)
 125
 126
 127 /*+-------------------------------------------------------------------------
 128         Compute the intersection rectangle of two overlapping rectangles
 129 ---------------------------------------------------------------------------*/
 130 #define COMPUTE_INTERSECTION(pan1,pan2,ix1,ix2,iy1,iy2)\
 131    ix1 = (PSTARTX(pan1) < PSTARTX(pan2)) ? PSTARTX(pan2) : PSTARTX(pan1);\
 132    ix2 = (PENDX(pan1)   < PENDX(pan2))   ? PENDX(pan1)   : PENDX(pan2);\
 133    iy1 = (PSTARTY(pan1) < PSTARTY(pan2)) ? PSTARTY(pan2) : PSTARTY(pan1);\
 134    iy2 = (PENDY(pan1)   < PENDY(pan2))   ? PENDY(pan1)   : PENDY(pan2);\
 135    assert((ix1<=ix2) && (iy1<=iy2));\
 136
 137
 138 /*+-------------------------------------------------------------------------
 139         Walk through the panel stack starting at the given location and
 140         check for intersections; overlapping panels are "touched", so they
 141         are incrementally overwriting cells that should be hidden.
 142         If the "touch" flag is set, the panel gets touched before it is
 143         updated.
 144 ---------------------------------------------------------------------------*/
 145 #define PANEL_UPDATE(pan,panstart)\
 146 {  PANEL* pan2 = ((panstart) ? (panstart) : _nc_bottom_panel);\
 147    while(pan2) {\
 148       if ((pan2 != pan) && PANELS_OVERLAPPED(pan,pan2)) {\
 149         int y,ix1,ix2,iy1,iy2;\
 150         COMPUTE_INTERSECTION(pan,pan2,ix1,ix2,iy1,iy2);\
 151         for(y = iy1; y <= iy2; y++) {\
 152           if (is_linetouched(pan->win,y - PSTARTY(pan))) {\
 153             struct ldat* line = &(pan2->win->_line[y - PSTARTY(pan2)]);\
 154             CHANGED_RANGE(line,ix1-PSTARTX(pan2),ix2-PSTARTX(pan2));\
 155           }\
 156         }\
 157       }\
 158       pan2 = pan2->above;\
 159    }\
 160 }
 161
 162 /*+-------------------------------------------------------------------------
 163         Remove panel from stack.
 164 ---------------------------------------------------------------------------*/
 165 #define PANEL_UNLINK(pan,err) \
 166 {  err = ERR;\
 167    if (pan) {\
 168      if (IS_LINKED(pan)) {\
 169        if ((pan)->below)\
 170          (pan)->below->above = (pan)->above;\
 171        if ((pan)->above)\
 172          (pan)->above->below = (pan)->below;\
 173        if ((pan) == _nc_bottom_panel) \
 174          _nc_bottom_panel = (pan)->above;\
 175        if ((pan) == _nc_top_panel) \
 176          _nc_top_panel = (pan)->below;\
 177        err = OK;\
 178      }\
 179      (pan)->above = (pan)->below = (PANEL*)0;\
 180    }\
 181 }
 182
 183 #define HIDE_PANEL(pan,err,err_if_unlinked)\
 184   if (IS_LINKED(pan)) {\
 185     Touchpan(pan);\
 186     PANEL_UPDATE(pan,(PANEL*)0);\
 187     PANEL_UNLINK(pan,err);\
 188   } \
 189   else {\
 190       err = err_if_unlinked;\
 191   }
 192
 193 #endif /* NCURSES_PANEL_PRIV_H */