1 /**************************************************************************** 2 * Copyright (c) 2000 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /* $Id: panel.priv.h,v 1.18 2001/03/24 21:38:45 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 "panel.h" 51 #include <nc_panel.h> 52 53 #if ( CC_HAS_INLINE_FUNCS && !defined(TRACE) ) 54 # define INLINE inline 55 #else 56 # define INLINE 57 #endif 58 59 #if USE_RCS_IDS 60 # define MODULE_ID(id) static const char Ident[] = id; 61 #else 62 # define MODULE_ID(id) /*nothing*/ 63 #endif 64 65 66 #ifdef TRACE 67 extern NCURSES_EXPORT(const char *) _nc_my_visbuf (const void *); 68 # ifdef TRACE_TXT 69 # define USER_PTR(ptr) _nc_visbuf((const char *)ptr) 70 # else 71 # define USER_PTR(ptr) _nc_my_visbuf((const char *)ptr) 72 # endif 73 74 extern NCURSES_EXPORT(void) _nc_dPanel (const char*, const PANEL*); 75 extern NCURSES_EXPORT(void) _nc_dStack (const char*, int, const PANEL*); 76 extern NCURSES_EXPORT(void) _nc_Wnoutrefresh (const PANEL*); 77 extern NCURSES_EXPORT(void) _nc_Touchpan (const PANEL*); 78 extern NCURSES_EXPORT(void) _nc_Touchline (const PANEL*, int, int); 79 80 # define dBug(x) _tracef x 81 # define dPanel(text,pan) _nc_dPanel(text,pan) 82 # define dStack(fmt,num,pan) _nc_dStack(fmt,num,pan) 83 # define Wnoutrefresh(pan) _nc_Wnoutrefresh(pan) 84 # define Touchpan(pan) _nc_Touchpan(pan) 85 # define Touchline(pan,start,count) _nc_Touchline(pan,start,count) 86 #else /* !TRACE */ 87 # define dBug(x) 88 # define dPanel(text,pan) 89 # define dStack(fmt,num,pan) 90 # define Wnoutrefresh(pan) wnoutrefresh((pan)->win) 91 # define Touchpan(pan) touchwin((pan)->win) 92 # define Touchline(pan,start,count) touchline((pan)->win,start,count) 93 #endif 94 95 #define _nc_stdscr_pseudo_panel _nc_panelhook()->stdscr_pseudo_panel 96 #define _nc_top_panel _nc_panelhook()->top_panel 97 #define _nc_bottom_panel _nc_panelhook()->bottom_panel 98 99 #define EMPTY_STACK() (_nc_top_panel==_nc_bottom_panel) 100 #define Is_Bottom(p) (((p)!=(PANEL*)0) && !EMPTY_STACK() && (_nc_bottom_panel->above==(p))) 101 #define Is_Top(p) (((p)!=(PANEL*)0) && !EMPTY_STACK() && (_nc_top_panel==(p))) 102 #define Is_Pseudo(p) ((p) && ((p)==_nc_bottom_panel)) 103 104 /* borrowed from curses.priv.h */ 105 #define CHANGED_RANGE(line,start,end) \ 106 if (line->firstchar == _NOCHANGE \ 107 || line->firstchar > (start)) \ 108 line->firstchar = start; \ 109 if (line->lastchar == _NOCHANGE \ 110 || line->lastchar < (end)) \ 111 line->lastchar = end 112 113 /*+------------------------------------------------------------------------- 114 IS_LINKED(pan) - check to see if panel is in the stack 115 --------------------------------------------------------------------------*/ 116 /* This works! The only case where it would fail is, when the list has 117 only one element. But this could only be the pseudo panel at the bottom */ 118 #define IS_LINKED(p) (((p)->above || (p)->below ||((p)==_nc_bottom_panel)) ? TRUE : FALSE) 119 120 #define PSTARTX(pan) ((pan)->win->_begx) 121 #define PENDX(pan) ((pan)->win->_begx + getmaxx((pan)->win) - 1) 122 #define PSTARTY(pan) ((pan)->win->_begy) 123 #define PENDY(pan) ((pan)->win->_begy + getmaxy((pan)->win) - 1) 124 125 /*+------------------------------------------------------------------------- 126 PANELS_OVERLAPPED(pan1,pan2) - check panel overlapped 127 ---------------------------------------------------------------------------*/ 128 #define PANELS_OVERLAPPED(pan1,pan2) \ 129 (( !(pan1) || !(pan2) || \ 130 PSTARTY(pan1) > PENDY(pan2) || PENDY(pan1) < PSTARTY(pan2) ||\ 131 PSTARTX(pan1) > PENDX(pan2) || PENDX(pan1) < PSTARTX(pan2) ) \ 132 ? FALSE : TRUE) 133 134 135 /*+------------------------------------------------------------------------- 136 Compute the intersection rectangle of two overlapping rectangles 137 ---------------------------------------------------------------------------*/ 138 #define COMPUTE_INTERSECTION(pan1,pan2,ix1,ix2,iy1,iy2)\ 139 ix1 = (PSTARTX(pan1) < PSTARTX(pan2)) ? PSTARTX(pan2) : PSTARTX(pan1);\ 140 ix2 = (PENDX(pan1) < PENDX(pan2)) ? PENDX(pan1) : PENDX(pan2);\ 141 iy1 = (PSTARTY(pan1) < PSTARTY(pan2)) ? PSTARTY(pan2) : PSTARTY(pan1);\ 142 iy2 = (PENDY(pan1) < PENDY(pan2)) ? PENDY(pan1) : PENDY(pan2);\ 143 assert((ix1<=ix2) && (iy1<=iy2));\ 144 145 146 /*+------------------------------------------------------------------------- 147 Walk through the panel stack starting at the given location and 148 check for intersections; overlapping panels are "touched", so they 149 are incrementally overwriting cells that should be hidden. 150 If the "touch" flag is set, the panel gets touched before it is 151 updated. 152 ---------------------------------------------------------------------------*/ 153 #define PANEL_UPDATE(pan,panstart)\ 154 { PANEL* pan2 = ((panstart) ? (panstart) : _nc_bottom_panel);\ 155 while(pan2) {\ 156 if ((pan2 != pan) && PANELS_OVERLAPPED(pan,pan2)) {\ 157 int y,ix1,ix2,iy1,iy2;\ 158 COMPUTE_INTERSECTION(pan,pan2,ix1,ix2,iy1,iy2);\ 159 for(y = iy1; y <= iy2; y++) {\ 160 if (is_linetouched(pan->win,y - PSTARTY(pan))) {\ 161 struct ldat* line = &(pan2->win->_line[y - PSTARTY(pan2)]);\ 162 CHANGED_RANGE(line,ix1-PSTARTX(pan2),ix2-PSTARTX(pan2));\ 163 }\ 164 }\ 165 }\ 166 pan2 = pan2->above;\ 167 }\ 168 } 169 170 /*+------------------------------------------------------------------------- 171 Remove panel from stack. 172 ---------------------------------------------------------------------------*/ 173 #define PANEL_UNLINK(pan,err) \ 174 { err = ERR;\ 175 if (pan) {\ 176 if (IS_LINKED(pan)) {\ 177 if ((pan)->below)\ 178 (pan)->below->above = (pan)->above;\ 179 if ((pan)->above)\ 180 (pan)->above->below = (pan)->below;\ 181 if ((pan) == _nc_bottom_panel) \ 182 _nc_bottom_panel = (pan)->above;\ 183 if ((pan) == _nc_top_panel) \ 184 _nc_top_panel = (pan)->below;\ 185 err = OK;\ 186 }\ 187 (pan)->above = (pan)->below = (PANEL*)0;\ 188 }\ 189 } 190 191 #define HIDE_PANEL(pan,err,err_if_unlinked)\ 192 if (IS_LINKED(pan)) {\ 193 Touchpan(pan);\ 194 PANEL_UPDATE(pan,(PANEL*)0);\ 195 PANEL_UNLINK(pan,err);\ 196 } \ 197 else {\ 198 err = err_if_unlinked;\ 199 } 200 201 #endif /* NCURSES_PANEL_PRIV_H */ 202