release/src/router/libncurses/panel/panel.priv.h

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  28
  29 /* $Id: panel.priv.h,v 1.23 2009/04/11 20:33:55 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 struct screen;              /* forward declaration */
  43
  44 #include "curses.priv.h"    /* includes nc_panel.h */
  45 #include "panel.h"
  46
  47
  48 #if USE_RCS_IDS
  49 #  define MODULE_ID(id) static const char Ident[] = id;
  50 #else
  51 #  define MODULE_ID(id) /*nothing*/
  52 #endif
  53
  54
  55 #ifdef TRACE
  56    extern NCURSES_EXPORT(const char *) _nc_my_visbuf (const void *);
  57 #  ifdef TRACE_TXT
  58 #    define USER_PTR(ptr) _nc_visbuf((const char *)ptr)
  59 #  else
  60 #    define USER_PTR(ptr) _nc_my_visbuf((const char *)ptr)
  61 #  endif
  62
  63 #  define returnPanel(code)     TRACE_RETURN(code,panel)
  64
  65    extern NCURSES_EXPORT(PANEL *) _nc_retrace_panel (PANEL *);
  66    extern NCURSES_EXPORT(void) _nc_dPanel (const char*, const PANEL*);
  67    extern NCURSES_EXPORT(void) _nc_dStack (const char*, int, const PANEL*);
  68    extern NCURSES_EXPORT(void) _nc_Wnoutrefresh (const PANEL*);
  69    extern NCURSES_EXPORT(void) _nc_Touchpan (const PANEL*);
  70    extern NCURSES_EXPORT(void) _nc_Touchline (const PANEL*, int, int);
  71
  72 #  define dBug(x) _tracef x
  73 #  define dPanel(text,pan) _nc_dPanel(text,pan)
  74 #  define dStack(fmt,num,pan) _nc_dStack(fmt,num,pan)
  75 #  define Wnoutrefresh(pan) _nc_Wnoutrefresh(pan)
  76 #  define Touchpan(pan) _nc_Touchpan(pan)
  77 #  define Touchline(pan,start,count) _nc_Touchline(pan,start,count)
  78 #else /* !TRACE */
  79 #  define returnPanel(code)     return code
  80 #  define dBug(x)
  81 #  define dPanel(text,pan)
  82 #  define dStack(fmt,num,pan)
  83 #  define Wnoutrefresh(pan) wnoutrefresh((pan)->win)
  84 #  define Touchpan(pan) touchwin((pan)->win)
  85 #  define Touchline(pan,start,count) touchline((pan)->win,start,count)
  86 #endif
  87
  88 #if NCURSES_SP_FUNCS
  89 #define GetScreenHook(sp) \
  90                         struct panelhook* ph = NCURSES_SP_NAME(_nc_panelhook)(sp)
  91 #define GetPanelHook(pan) \
  92                         GetScreenHook(_nc_screen_of((pan)->win))
  93 #define GetWindowHook(win) \
  94                         SCREEN* sp = _nc_screen_of(win); \
  95                         GetScreenHook(sp)
  96 #define GetHook(pan)    SCREEN* sp = _nc_screen_of(pan->win); \
  97                         GetScreenHook(sp)
  98
  99 #define _nc_stdscr_pseudo_panel ((ph)->stdscr_pseudo_panel)
 100 #define _nc_top_panel           ((ph)->top_panel)
 101 #define _nc_bottom_panel        ((ph)->bottom_panel)
 102
 103 #else   /* !NCURSES_SP_FUNCS */
 104
 105 #define GetScreenHook(sp) /* nothing */
 106 #define GetPanelHook(pan) /* nothing */
 107 #define GetWindowHook(win) /* nothing */
 108 #define GetHook(pan) /* nothing */
 109
 110 #define _nc_stdscr_pseudo_panel _nc_panelhook()->stdscr_pseudo_panel
 111 #define _nc_top_panel           _nc_panelhook()->top_panel
 112 #define _nc_bottom_panel        _nc_panelhook()->bottom_panel
 113
 114 #endif  /* NCURSES_SP_FUNCS */
 115
 116 #define EMPTY_STACK() (_nc_top_panel == _nc_bottom_panel)
 117 #define Is_Bottom(p)  (((p) != (PANEL*)0) && !EMPTY_STACK() && (_nc_bottom_panel->above == (p)))
 118 #define Is_Top(p)     (((p) != (PANEL*)0) && !EMPTY_STACK() && (_nc_top_panel == (p)))
 119 #define Is_Pseudo(p)  (((p) != (PANEL*)0) && ((p) == _nc_bottom_panel))
 120
 121 /*+-------------------------------------------------------------------------
 122         IS_LINKED(pan) - check to see if panel is in the stack
 123 --------------------------------------------------------------------------*/
 124 /* This works! The only case where it would fail is, when the list has
 125    only one element. But this could only be the pseudo panel at the bottom */
 126 #define IS_LINKED(p) (((p)->above || (p)->below ||((p)==_nc_bottom_panel)) ? TRUE : FALSE)
 127
 128 #define PSTARTX(pan) ((pan)->win->_begx)
 129 #define PENDX(pan)   ((pan)->win->_begx + getmaxx((pan)->win) - 1)
 130 #define PSTARTY(pan) ((pan)->win->_begy)
 131 #define PENDY(pan)   ((pan)->win->_begy + getmaxy((pan)->win) - 1)
 132
 133 /*+-------------------------------------------------------------------------
 134         PANELS_OVERLAPPED(pan1,pan2) - check panel overlapped
 135 ---------------------------------------------------------------------------*/
 136 #define PANELS_OVERLAPPED(pan1,pan2) \
 137 (( !(pan1) || !(pan2) || \
 138        PSTARTY(pan1) > PENDY(pan2) || PENDY(pan1) < PSTARTY(pan2) ||\
 139        PSTARTX(pan1) > PENDX(pan2) || PENDX(pan1) < PSTARTX(pan2) ) \
 140      ? FALSE : TRUE)
 141
 142
 143 /*+-------------------------------------------------------------------------
 144         Compute the intersection rectangle of two overlapping rectangles
 145 ---------------------------------------------------------------------------*/
 146 #define COMPUTE_INTERSECTION(pan1,pan2,ix1,ix2,iy1,iy2)\
 147    ix1 = (PSTARTX(pan1) < PSTARTX(pan2)) ? PSTARTX(pan2) : PSTARTX(pan1);\
 148    ix2 = (PENDX(pan1)   < PENDX(pan2))   ? PENDX(pan1)   : PENDX(pan2);\
 149    iy1 = (PSTARTY(pan1) < PSTARTY(pan2)) ? PSTARTY(pan2) : PSTARTY(pan1);\
 150    iy2 = (PENDY(pan1)   < PENDY(pan2))   ? PENDY(pan1)   : PENDY(pan2);\
 151    assert((ix1<=ix2) && (iy1<=iy2))
 152
 153
 154 /*+-------------------------------------------------------------------------
 155         Walk through the panel stack starting at the given location and
 156         check for intersections; overlapping panels are "touched", so they
 157         are incrementally overwriting cells that should be hidden.
 158         If the "touch" flag is set, the panel gets touched before it is
 159         updated.
 160 ---------------------------------------------------------------------------*/
 161 #define PANEL_UPDATE(pan,panstart)\
 162 {  PANEL* pan2 = ((panstart) ? (panstart) : _nc_bottom_panel);\
 163    while(pan2) {\
 164       if ((pan2 != pan) && PANELS_OVERLAPPED(pan,pan2)) {\
 165         int y, ix1, ix2, iy1, iy2;\
 166         COMPUTE_INTERSECTION(pan, pan2, ix1, ix2, iy1, iy2);\
 167         for(y = iy1; y <= iy2; y++) {\
 168           if (is_linetouched(pan->win,y - PSTARTY(pan))) {\
 169             struct ldat* line = &(pan2->win->_line[y - PSTARTY(pan2)]);\
 170             CHANGED_RANGE(line, ix1 - PSTARTX(pan2), ix2 - PSTARTX(pan2));\
 171           }\
 172         }\
 173       }\
 174       pan2 = pan2->above;\
 175    }\
 176 }
 177
 178 /*+-------------------------------------------------------------------------
 179         Remove panel from stack.
 180 ---------------------------------------------------------------------------*/
 181 #define PANEL_UNLINK(pan,err) \
 182 {  err = ERR;\
 183    if (pan) {\
 184      if (IS_LINKED(pan)) {\
 185        if ((pan)->below)\
 186          (pan)->below->above = (pan)->above;\
 187        if ((pan)->above)\
 188          (pan)->above->below = (pan)->below;\
 189        if ((pan) == _nc_bottom_panel) \
 190          _nc_bottom_panel = (pan)->above;\
 191        if ((pan) == _nc_top_panel) \
 192          _nc_top_panel = (pan)->below;\
 193        err = OK;\
 194      }\
 195      (pan)->above = (pan)->below = (PANEL*)0;\
 196    }\
 197 }
 198
 199 #define HIDE_PANEL(pan,err,err_if_unlinked)\
 200   if (IS_LINKED(pan)) {\
 201     Touchpan(pan);\
 202     PANEL_UPDATE(pan,(PANEL*)0);\
 203     PANEL_UNLINK(pan,err);\
 204   } \
 205   else {\
 206       err = err_if_unlinked;\
 207   }
 208
 209 #if NCURSES_SP_FUNCS
 210 /* These may become later renamed and part of panel.h and the public API */
 211 extern NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_update_panels)(SCREEN*);
 212 #endif
 213
 214 #endif /* NCURSES_PANEL_PRIV_H */