1 /* $OpenBSD: panel.priv.h,v 1.10 2015/01/23 22:48:51 krw Exp $ */ 2 /**************************************************************************** 3 * Copyright (c) 1998-2005,2008 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30 /* $Id: panel.priv.h,v 1.10 2015/01/23 22:48:51 krw Exp $ */ 31 32 #ifndef NCURSES_PANEL_PRIV_H 33 #define NCURSES_PANEL_PRIV_H 1 34 35 #if HAVE_CONFIG_H 36 # include <ncurses_cfg.h> 37 #endif 38 39 #include <stdlib.h> 40 #include <string.h> 41 #include <assert.h> 42 43 #include "curses.priv.h" 44 #include "panel.h" 45 #include <nc_panel.h> 46 47 #if USE_RCS_IDS 48 # define MODULE_ID(id) static const char Ident[] = id; 49 #else 50 # define MODULE_ID(id) /*nothing*/ 51 #endif 52 53 54 #ifdef TRACE 55 extern NCURSES_EXPORT(const char *) _nc_my_visbuf (const void *); 56 # ifdef TRACE_TXT 57 # define USER_PTR(ptr) _nc_visbuf((const char *)ptr) 58 # else 59 # define USER_PTR(ptr) _nc_my_visbuf((const char *)ptr) 60 # endif 61 62 # define returnPanel(code) TRACE_RETURN(code,panel) 63 64 extern NCURSES_EXPORT(PANEL *) _nc_retrace_panel (PANEL *); 65 extern NCURSES_EXPORT(void) _nc_dPanel (const char*, const PANEL*); 66 extern NCURSES_EXPORT(void) _nc_dStack (const char*, int, const PANEL*); 67 extern NCURSES_EXPORT(void) _nc_Wnoutrefresh (const PANEL*); 68 extern NCURSES_EXPORT(void) _nc_Touchpan (const PANEL*); 69 extern NCURSES_EXPORT(void) _nc_Touchline (const PANEL*, int, int); 70 71 # define dBug(x) _tracef x 72 # define dPanel(text,pan) _nc_dPanel(text,pan) 73 # define dStack(fmt,num,pan) _nc_dStack(fmt,num,pan) 74 # define Wnoutrefresh(pan) _nc_Wnoutrefresh(pan) 75 # define Touchpan(pan) _nc_Touchpan(pan) 76 # define Touchline(pan,start,count) _nc_Touchline(pan,start,count) 77 #else /* !TRACE */ 78 # define returnPanel(code) return code 79 # define dBug(x) 80 # define dPanel(text,pan) 81 # define dStack(fmt,num,pan) 82 # define Wnoutrefresh(pan) wnoutrefresh((pan)->win) 83 # define Touchpan(pan) touchwin((pan)->win) 84 # define Touchline(pan,start,count) touchline((pan)->win,start,count) 85 #endif 86 87 #define _nc_stdscr_pseudo_panel _nc_panelhook()->stdscr_pseudo_panel 88 #define _nc_top_panel _nc_panelhook()->top_panel 89 #define _nc_bottom_panel _nc_panelhook()->bottom_panel 90 91 #define EMPTY_STACK() (_nc_top_panel==_nc_bottom_panel) 92 #define Is_Bottom(p) (((p)!=(PANEL*)0) && !EMPTY_STACK() && (_nc_bottom_panel->above==(p))) 93 #define Is_Top(p) (((p)!=(PANEL*)0) && !EMPTY_STACK() && (_nc_top_panel==(p))) 94 #define Is_Pseudo(p) ((p) && ((p)==_nc_bottom_panel)) 95 96 /*+------------------------------------------------------------------------- 97 IS_LINKED(pan) - check to see if panel is in the stack 98 --------------------------------------------------------------------------*/ 99 /* This works! The only case where it would fail is, when the list has 100 only one element. But this could only be the pseudo panel at the bottom */ 101 #define IS_LINKED(p) (((p)->above || (p)->below ||((p)==_nc_bottom_panel)) ? TRUE : FALSE) 102 103 #define PSTARTX(pan) ((pan)->win->_begx) 104 #define PENDX(pan) ((pan)->win->_begx + getmaxx((pan)->win) - 1) 105 #define PSTARTY(pan) ((pan)->win->_begy) 106 #define PENDY(pan) ((pan)->win->_begy + getmaxy((pan)->win) - 1) 107 108 /*+------------------------------------------------------------------------- 109 PANELS_OVERLAPPED(pan1,pan2) - check panel overlapped 110 ---------------------------------------------------------------------------*/ 111 #define PANELS_OVERLAPPED(pan1,pan2) \ 112 (( !(pan1) || !(pan2) || \ 113 PSTARTY(pan1) > PENDY(pan2) || PENDY(pan1) < PSTARTY(pan2) ||\ 114 PSTARTX(pan1) > PENDX(pan2) || PENDX(pan1) < PSTARTX(pan2) ) \ 115 ? FALSE : TRUE) 116 117 118 /*+------------------------------------------------------------------------- 119 Compute the intersection rectangle of two overlapping rectangles 120 ---------------------------------------------------------------------------*/ 121 #define COMPUTE_INTERSECTION(pan1,pan2,ix1,ix2,iy1,iy2)\ 122 ix1 = (PSTARTX(pan1) < PSTARTX(pan2)) ? PSTARTX(pan2) : PSTARTX(pan1);\ 123 ix2 = (PENDX(pan1) < PENDX(pan2)) ? PENDX(pan1) : PENDX(pan2);\ 124 iy1 = (PSTARTY(pan1) < PSTARTY(pan2)) ? PSTARTY(pan2) : PSTARTY(pan1);\ 125 iy2 = (PENDY(pan1) < PENDY(pan2)) ? PENDY(pan1) : PENDY(pan2);\ 126 assert((ix1<=ix2) && (iy1<=iy2));\ 127 128 129 /*+------------------------------------------------------------------------- 130 Walk through the panel stack starting at the given location and 131 check for intersections; overlapping panels are "touched", so they 132 are incrementally overwriting cells that should be hidden. 133 If the "touch" flag is set, the panel gets touched before it is 134 updated. 135 ---------------------------------------------------------------------------*/ 136 #define PANEL_UPDATE(pan,panstart)\ 137 { PANEL* pan2 = ((panstart) ? (panstart) : _nc_bottom_panel);\ 138 while(pan2) {\ 139 if ((pan2 != pan) && PANELS_OVERLAPPED(pan,pan2)) {\ 140 int y,ix1,ix2,iy1,iy2;\ 141 COMPUTE_INTERSECTION(pan,pan2,ix1,ix2,iy1,iy2);\ 142 for(y = iy1; y <= iy2; y++) {\ 143 if (is_linetouched(pan->win,y - PSTARTY(pan))) {\ 144 struct ldat* line = &(pan2->win->_line[y - PSTARTY(pan2)]);\ 145 CHANGED_RANGE(line,ix1-PSTARTX(pan2),ix2-PSTARTX(pan2));\ 146 }\ 147 }\ 148 }\ 149 pan2 = pan2->above;\ 150 }\ 151 } 152 153 /*+------------------------------------------------------------------------- 154 Remove panel from stack. 155 ---------------------------------------------------------------------------*/ 156 #define PANEL_UNLINK(pan,err) \ 157 { err = ERR;\ 158 if (pan) {\ 159 if (IS_LINKED(pan)) {\ 160 if ((pan)->below)\ 161 (pan)->below->above = (pan)->above;\ 162 if ((pan)->above)\ 163 (pan)->above->below = (pan)->below;\ 164 if ((pan) == _nc_bottom_panel) \ 165 _nc_bottom_panel = (pan)->above;\ 166 if ((pan) == _nc_top_panel) \ 167 _nc_top_panel = (pan)->below;\ 168 err = OK;\ 169 }\ 170 (pan)->above = (pan)->below = (PANEL*)0;\ 171 }\ 172 } 173 174 #define HIDE_PANEL(pan,err,err_if_unlinked)\ 175 if (IS_LINKED(pan)) {\ 176 Touchpan(pan);\ 177 PANEL_UPDATE(pan,(PANEL*)0);\ 178 PANEL_UNLINK(pan,err);\ 179 } \ 180 else {\ 181 err = err_if_unlinked;\ 182 } 183 184 #endif /* NCURSES_PANEL_PRIV_H */ 185