xref: /freebsd/contrib/ncurses/panel/panel.priv.h (revision c96ae1968a6ab7056427a739bce81bf07447c2d4)
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28 
29 /* $Id: panel.priv.h,v 1.21 2005/11/26 15:27:00 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 USE_RCS_IDS
55 #  define MODULE_ID(id) static const char Ident[] = id;
56 #else
57 #  define MODULE_ID(id) /*nothing*/
58 #endif
59 
60 
61 #ifdef TRACE
62    extern NCURSES_EXPORT(const char *) _nc_my_visbuf (const void *);
63 #  ifdef TRACE_TXT
64 #    define USER_PTR(ptr) _nc_visbuf((const char *)ptr)
65 #  else
66 #    define USER_PTR(ptr) _nc_my_visbuf((const char *)ptr)
67 #  endif
68 
69 #  define returnPanel(code)	TRACE_RETURN(code,panel)
70 
71    extern NCURSES_EXPORT(PANEL *) _nc_retrace_panel (PANEL *);
72    extern NCURSES_EXPORT(void) _nc_dPanel (const char*, const PANEL*);
73    extern NCURSES_EXPORT(void) _nc_dStack (const char*, int, const PANEL*);
74    extern NCURSES_EXPORT(void) _nc_Wnoutrefresh (const PANEL*);
75    extern NCURSES_EXPORT(void) _nc_Touchpan (const PANEL*);
76    extern NCURSES_EXPORT(void) _nc_Touchline (const PANEL*, int, int);
77 
78 #  define dBug(x) _tracef x
79 #  define dPanel(text,pan) _nc_dPanel(text,pan)
80 #  define dStack(fmt,num,pan) _nc_dStack(fmt,num,pan)
81 #  define Wnoutrefresh(pan) _nc_Wnoutrefresh(pan)
82 #  define Touchpan(pan) _nc_Touchpan(pan)
83 #  define Touchline(pan,start,count) _nc_Touchline(pan,start,count)
84 #else /* !TRACE */
85 #  define returnPanel(code)	return code
86 #  define dBug(x)
87 #  define dPanel(text,pan)
88 #  define dStack(fmt,num,pan)
89 #  define Wnoutrefresh(pan) wnoutrefresh((pan)->win)
90 #  define Touchpan(pan) touchwin((pan)->win)
91 #  define Touchline(pan,start,count) touchline((pan)->win,start,count)
92 #endif
93 
94 #define _nc_stdscr_pseudo_panel _nc_panelhook()->stdscr_pseudo_panel
95 #define _nc_top_panel _nc_panelhook()->top_panel
96 #define _nc_bottom_panel _nc_panelhook()->bottom_panel
97 
98 #define EMPTY_STACK() (_nc_top_panel==_nc_bottom_panel)
99 #define Is_Bottom(p)  (((p)!=(PANEL*)0) && !EMPTY_STACK() && (_nc_bottom_panel->above==(p)))
100 #define Is_Top(p) (((p)!=(PANEL*)0) && !EMPTY_STACK() && (_nc_top_panel==(p)))
101 #define Is_Pseudo(p) ((p) && ((p)==_nc_bottom_panel))
102 
103 /*+-------------------------------------------------------------------------
104 	IS_LINKED(pan) - check to see if panel is in the stack
105 --------------------------------------------------------------------------*/
106 /* This works! The only case where it would fail is, when the list has
107    only one element. But this could only be the pseudo panel at the bottom */
108 #define IS_LINKED(p) (((p)->above || (p)->below ||((p)==_nc_bottom_panel)) ? TRUE : FALSE)
109 
110 #define PSTARTX(pan) ((pan)->win->_begx)
111 #define PENDX(pan)   ((pan)->win->_begx + getmaxx((pan)->win) - 1)
112 #define PSTARTY(pan) ((pan)->win->_begy)
113 #define PENDY(pan)   ((pan)->win->_begy + getmaxy((pan)->win) - 1)
114 
115 /*+-------------------------------------------------------------------------
116 	PANELS_OVERLAPPED(pan1,pan2) - check panel overlapped
117 ---------------------------------------------------------------------------*/
118 #define PANELS_OVERLAPPED(pan1,pan2) \
119 (( !(pan1) || !(pan2) || \
120        PSTARTY(pan1) > PENDY(pan2) || PENDY(pan1) < PSTARTY(pan2) ||\
121        PSTARTX(pan1) > PENDX(pan2) || PENDX(pan1) < PSTARTX(pan2) ) \
122      ? FALSE : TRUE)
123 
124 
125 /*+-------------------------------------------------------------------------
126 	Compute the intersection rectangle of two overlapping rectangles
127 ---------------------------------------------------------------------------*/
128 #define COMPUTE_INTERSECTION(pan1,pan2,ix1,ix2,iy1,iy2)\
129    ix1 = (PSTARTX(pan1) < PSTARTX(pan2)) ? PSTARTX(pan2) : PSTARTX(pan1);\
130    ix2 = (PENDX(pan1)   < PENDX(pan2))   ? PENDX(pan1)   : PENDX(pan2);\
131    iy1 = (PSTARTY(pan1) < PSTARTY(pan2)) ? PSTARTY(pan2) : PSTARTY(pan1);\
132    iy2 = (PENDY(pan1)   < PENDY(pan2))   ? PENDY(pan1)   : PENDY(pan2);\
133    assert((ix1<=ix2) && (iy1<=iy2));\
134 
135 
136 /*+-------------------------------------------------------------------------
137 	Walk through the panel stack starting at the given location and
138         check for intersections; overlapping panels are "touched", so they
139         are incrementally overwriting cells that should be hidden.
140         If the "touch" flag is set, the panel gets touched before it is
141         updated.
142 ---------------------------------------------------------------------------*/
143 #define PANEL_UPDATE(pan,panstart)\
144 {  PANEL* pan2 = ((panstart) ? (panstart) : _nc_bottom_panel);\
145    while(pan2) {\
146       if ((pan2 != pan) && PANELS_OVERLAPPED(pan,pan2)) {\
147         int y,ix1,ix2,iy1,iy2;\
148         COMPUTE_INTERSECTION(pan,pan2,ix1,ix2,iy1,iy2);\
149 	for(y = iy1; y <= iy2; y++) {\
150 	  if (is_linetouched(pan->win,y - PSTARTY(pan))) {\
151             struct ldat* line = &(pan2->win->_line[y - PSTARTY(pan2)]);\
152             CHANGED_RANGE(line,ix1-PSTARTX(pan2),ix2-PSTARTX(pan2));\
153           }\
154 	}\
155       }\
156       pan2 = pan2->above;\
157    }\
158 }
159 
160 /*+-------------------------------------------------------------------------
161 	Remove panel from stack.
162 ---------------------------------------------------------------------------*/
163 #define PANEL_UNLINK(pan,err) \
164 {  err = ERR;\
165    if (pan) {\
166      if (IS_LINKED(pan)) {\
167        if ((pan)->below)\
168          (pan)->below->above = (pan)->above;\
169        if ((pan)->above)\
170          (pan)->above->below = (pan)->below;\
171        if ((pan) == _nc_bottom_panel) \
172          _nc_bottom_panel = (pan)->above;\
173        if ((pan) == _nc_top_panel) \
174          _nc_top_panel = (pan)->below;\
175        err = OK;\
176      }\
177      (pan)->above = (pan)->below = (PANEL*)0;\
178    }\
179 }
180 
181 #define HIDE_PANEL(pan,err,err_if_unlinked)\
182   if (IS_LINKED(pan)) {\
183     Touchpan(pan);\
184     PANEL_UPDATE(pan,(PANEL*)0);\
185     PANEL_UNLINK(pan,err);\
186   } \
187   else {\
188       err = err_if_unlinked;\
189   }
190 
191 #endif /* NCURSES_PANEL_PRIV_H */
192