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27 ****************************************************************************/
29 /* $Id: panel.priv.h,v 1.27 2017/02/11 16:50:43 tom Exp $ */
31 #ifndef NCURSES_PANEL_PRIV_H
32 #define NCURSES_PANEL_PRIV_H 1
36 # include <ncurses_cfg.h>
43 struct screen; /* forward declaration */
45 #include "curses.priv.h" /* includes nc_panel.h */
47 #define NCURSES_OPAQUE_PANEL 0
52 extern NCURSES_EXPORT(const char *) _nc_my_visbuf (const void *);
54 # define USER_PTR(ptr) _nc_visbuf((const char *)ptr)
56 # define USER_PTR(ptr) _nc_my_visbuf((const char *)ptr)
59 # define returnPanel(code) TRACE_RETURN1(code,panel)
61 extern NCURSES_EXPORT(PANEL *) _nc_retrace_panel (PANEL *);
62 extern NCURSES_EXPORT(void) _nc_dPanel (const char*, const PANEL*);
63 extern NCURSES_EXPORT(void) _nc_dStack (const char*, int, const PANEL*);
64 extern NCURSES_EXPORT(void) _nc_Wnoutrefresh (const PANEL*);
65 extern NCURSES_EXPORT(void) _nc_Touchpan (const PANEL*);
66 extern NCURSES_EXPORT(void) _nc_Touchline (const PANEL*, int, int);
68 # define dBug(x) _tracef x
69 # define dPanel(text,pan) _nc_dPanel(text,pan)
70 # define dStack(fmt,num,pan) _nc_dStack(fmt,num,pan)
71 # define Wnoutrefresh(pan) _nc_Wnoutrefresh(pan)
72 # define Touchpan(pan) _nc_Touchpan(pan)
73 # define Touchline(pan,start,count) _nc_Touchline(pan,start,count)
75 # define returnPanel(code) return code
77 # define dPanel(text,pan)
78 # define dStack(fmt,num,pan)
79 # define Wnoutrefresh(pan) wnoutrefresh((pan)->win)
80 # define Touchpan(pan) touchwin((pan)->win)
81 # define Touchline(pan,start,count) touchline((pan)->win,start,count)
85 #define GetScreenHook(sp) \
86 struct panelhook* ph = NCURSES_SP_NAME(_nc_panelhook)(sp)
87 #define GetPanelHook(pan) \
88 GetScreenHook(pan ? _nc_screen_of((pan)->win) : 0)
89 #define GetWindowHook(win) \
90 SCREEN* sp = _nc_screen_of(win); \
92 #define GetHook(pan) SCREEN* sp = _nc_screen_of(pan->win); \
95 #define _nc_stdscr_pseudo_panel ((ph)->stdscr_pseudo_panel)
96 #define _nc_top_panel ((ph)->top_panel)
97 #define _nc_bottom_panel ((ph)->bottom_panel)
99 #else /* !NCURSES_SP_FUNCS */
101 #define GetScreenHook(sp) /* nothing */
102 #define GetPanelHook(pan) /* nothing */
103 #define GetWindowHook(win) /* nothing */
104 #define GetHook(pan) /* nothing */
106 #define _nc_stdscr_pseudo_panel _nc_panelhook()->stdscr_pseudo_panel
107 #define _nc_top_panel _nc_panelhook()->top_panel
108 #define _nc_bottom_panel _nc_panelhook()->bottom_panel
110 #endif /* NCURSES_SP_FUNCS */
112 #define EMPTY_STACK() (_nc_top_panel == _nc_bottom_panel)
113 #define Is_Bottom(p) (((p) != (PANEL*)0) && !EMPTY_STACK() && (_nc_bottom_panel->above == (p)))
114 #define Is_Top(p) (((p) != (PANEL*)0) && !EMPTY_STACK() && (_nc_top_panel == (p)))
115 #define Is_Pseudo(p) (((p) != (PANEL*)0) && ((p) == _nc_bottom_panel))
117 /*+-------------------------------------------------------------------------
118 IS_LINKED(pan) - check to see if panel is in the stack
119 --------------------------------------------------------------------------*/
120 /* This works! The only case where it would fail is, when the list has
121 only one element. But this could only be the pseudo panel at the bottom */
122 #define IS_LINKED(p) (((p)->above || (p)->below ||((p)==_nc_bottom_panel)) ? TRUE : FALSE)
124 #define PSTARTX(pan) ((pan)->win->_begx)
125 #define PENDX(pan) ((pan)->win->_begx + getmaxx((pan)->win) - 1)
126 #define PSTARTY(pan) ((pan)->win->_begy)
127 #define PENDY(pan) ((pan)->win->_begy + getmaxy((pan)->win) - 1)
129 /*+-------------------------------------------------------------------------
130 PANELS_OVERLAPPED(pan1,pan2) - check panel overlapped
131 ---------------------------------------------------------------------------*/
132 #define PANELS_OVERLAPPED(pan1,pan2) \
133 (( !(pan1) || !(pan2) || \
134 PSTARTY(pan1) > PENDY(pan2) || PENDY(pan1) < PSTARTY(pan2) ||\
135 PSTARTX(pan1) > PENDX(pan2) || PENDX(pan1) < PSTARTX(pan2) ) \
139 /*+-------------------------------------------------------------------------
140 Compute the intersection rectangle of two overlapping rectangles
141 ---------------------------------------------------------------------------*/
142 #define COMPUTE_INTERSECTION(pan1,pan2,ix1,ix2,iy1,iy2)\
143 ix1 = (PSTARTX(pan1) < PSTARTX(pan2)) ? PSTARTX(pan2) : PSTARTX(pan1);\
144 ix2 = (PENDX(pan1) < PENDX(pan2)) ? PENDX(pan1) : PENDX(pan2);\
145 iy1 = (PSTARTY(pan1) < PSTARTY(pan2)) ? PSTARTY(pan2) : PSTARTY(pan1);\
146 iy2 = (PENDY(pan1) < PENDY(pan2)) ? PENDY(pan1) : PENDY(pan2);\
147 assert((ix1<=ix2) && (iy1<=iy2))
150 /*+-------------------------------------------------------------------------
151 Walk through the panel stack starting at the given location and
152 check for intersections; overlapping panels are "touched", so they
153 are incrementally overwriting cells that should be hidden.
154 If the "touch" flag is set, the panel gets touched before it is
156 ---------------------------------------------------------------------------*/
157 #define PANEL_UPDATE(pan,panstart)\
158 { PANEL* pan2 = ((panstart) ? (panstart) : _nc_bottom_panel);\
159 while(pan2 && pan2->win) {\
160 if ((pan2 != pan) && PANELS_OVERLAPPED(pan,pan2)) {\
161 int y, ix1, ix2, iy1, iy2;\
162 COMPUTE_INTERSECTION(pan, pan2, ix1, ix2, iy1, iy2);\
163 for(y = iy1; y <= iy2; y++) {\
164 if (is_linetouched(pan->win,y - PSTARTY(pan))) {\
165 struct ldat* line = &(pan2->win->_line[y - PSTARTY(pan2)]);\
166 CHANGED_RANGE(line, ix1 - PSTARTX(pan2), ix2 - PSTARTX(pan2));\
174 /*+-------------------------------------------------------------------------
175 Remove panel from stack.
176 ---------------------------------------------------------------------------*/
177 #define PANEL_UNLINK(pan,err) \
180 if (IS_LINKED(pan)) {\
182 (pan)->below->above = (pan)->above;\
184 (pan)->above->below = (pan)->below;\
185 if ((pan) == _nc_bottom_panel) \
186 _nc_bottom_panel = (pan)->above;\
187 if ((pan) == _nc_top_panel) \
188 _nc_top_panel = (pan)->below;\
191 (pan)->above = (pan)->below = (PANEL*)0;\
195 #define HIDE_PANEL(pan,err,err_if_unlinked)\
196 if (IS_LINKED(pan)) {\
198 PANEL_UPDATE(pan,(PANEL*)0);\
199 PANEL_UNLINK(pan,err);\
202 err = err_if_unlinked;\
206 /* These may become later renamed and part of panel.h and the public API */
207 extern NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_update_panels)(SCREEN*);
211 #endif /* NCURSES_PANEL_PRIV_H */