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+/****************************************************************************
+ * Copyright (c) 1998-2001,2005 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/* $Id: panel.priv.h,v 1.21 2005/11/26 15:27:00 tom Exp $ */
+
+#ifndef NCURSES_PANEL_PRIV_H
+#define NCURSES_PANEL_PRIV_H 1
+
+#if HAVE_CONFIG_H
+# include <ncurses_cfg.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#if HAVE_LIBDMALLOC
+# include <dmalloc.h> /* Gray Watson's library */
+#endif
+
+#if HAVE_LIBDBMALLOC
+# include <dbmalloc.h> /* Conor Cahill's library */
+#endif
+
+#include "curses.priv.h"
+#include "panel.h"
+#include <nc_panel.h>
+
+#if USE_RCS_IDS
+# define MODULE_ID(id) static const char Ident[] = id;
+#else
+# define MODULE_ID(id) /*nothing*/
+#endif
+
+
+#ifdef TRACE
+ extern NCURSES_EXPORT(const char *) _nc_my_visbuf (const void *);
+# ifdef TRACE_TXT
+# define USER_PTR(ptr) _nc_visbuf((const char *)ptr)
+# else
+# define USER_PTR(ptr) _nc_my_visbuf((const char *)ptr)
+# endif
+
+# define returnPanel(code) TRACE_RETURN(code,panel)
+
+ extern NCURSES_EXPORT(PANEL *) _nc_retrace_panel (PANEL *);
+ extern NCURSES_EXPORT(void) _nc_dPanel (const char*, const PANEL*);
+ extern NCURSES_EXPORT(void) _nc_dStack (const char*, int, const PANEL*);
+ extern NCURSES_EXPORT(void) _nc_Wnoutrefresh (const PANEL*);
+ extern NCURSES_EXPORT(void) _nc_Touchpan (const PANEL*);
+ extern NCURSES_EXPORT(void) _nc_Touchline (const PANEL*, int, int);
+
+# define dBug(x) _tracef x
+# define dPanel(text,pan) _nc_dPanel(text,pan)
+# define dStack(fmt,num,pan) _nc_dStack(fmt,num,pan)
+# define Wnoutrefresh(pan) _nc_Wnoutrefresh(pan)
+# define Touchpan(pan) _nc_Touchpan(pan)
+# define Touchline(pan,start,count) _nc_Touchline(pan,start,count)
+#else /* !TRACE */
+# define returnPanel(code) return code
+# define dBug(x)
+# define dPanel(text,pan)
+# define dStack(fmt,num,pan)
+# define Wnoutrefresh(pan) wnoutrefresh((pan)->win)
+# define Touchpan(pan) touchwin((pan)->win)
+# define Touchline(pan,start,count) touchline((pan)->win,start,count)
+#endif
+
+#define _nc_stdscr_pseudo_panel _nc_panelhook()->stdscr_pseudo_panel
+#define _nc_top_panel _nc_panelhook()->top_panel
+#define _nc_bottom_panel _nc_panelhook()->bottom_panel
+
+#define EMPTY_STACK() (_nc_top_panel==_nc_bottom_panel)
+#define Is_Bottom(p) (((p)!=(PANEL*)0) && !EMPTY_STACK() && (_nc_bottom_panel->above==(p)))
+#define Is_Top(p) (((p)!=(PANEL*)0) && !EMPTY_STACK() && (_nc_top_panel==(p)))
+#define Is_Pseudo(p) ((p) && ((p)==_nc_bottom_panel))
+
+/*+-------------------------------------------------------------------------
+ IS_LINKED(pan) - check to see if panel is in the stack
+--------------------------------------------------------------------------*/
+/* This works! The only case where it would fail is, when the list has
+ only one element. But this could only be the pseudo panel at the bottom */
+#define IS_LINKED(p) (((p)->above || (p)->below ||((p)==_nc_bottom_panel)) ? TRUE : FALSE)
+
+#define PSTARTX(pan) ((pan)->win->_begx)
+#define PENDX(pan) ((pan)->win->_begx + getmaxx((pan)->win) - 1)
+#define PSTARTY(pan) ((pan)->win->_begy)
+#define PENDY(pan) ((pan)->win->_begy + getmaxy((pan)->win) - 1)
+
+/*+-------------------------------------------------------------------------
+ PANELS_OVERLAPPED(pan1,pan2) - check panel overlapped
+---------------------------------------------------------------------------*/
+#define PANELS_OVERLAPPED(pan1,pan2) \
+(( !(pan1) || !(pan2) || \
+ PSTARTY(pan1) > PENDY(pan2) || PENDY(pan1) < PSTARTY(pan2) ||\
+ PSTARTX(pan1) > PENDX(pan2) || PENDX(pan1) < PSTARTX(pan2) ) \
+ ? FALSE : TRUE)
+
+
+/*+-------------------------------------------------------------------------
+ Compute the intersection rectangle of two overlapping rectangles
+---------------------------------------------------------------------------*/
+#define COMPUTE_INTERSECTION(pan1,pan2,ix1,ix2,iy1,iy2)\
+ ix1 = (PSTARTX(pan1) < PSTARTX(pan2)) ? PSTARTX(pan2) : PSTARTX(pan1);\
+ ix2 = (PENDX(pan1) < PENDX(pan2)) ? PENDX(pan1) : PENDX(pan2);\
+ iy1 = (PSTARTY(pan1) < PSTARTY(pan2)) ? PSTARTY(pan2) : PSTARTY(pan1);\
+ iy2 = (PENDY(pan1) < PENDY(pan2)) ? PENDY(pan1) : PENDY(pan2);\
+ assert((ix1<=ix2) && (iy1<=iy2));\
+
+
+/*+-------------------------------------------------------------------------
+ Walk through the panel stack starting at the given location and
+ check for intersections; overlapping panels are "touched", so they
+ are incrementally overwriting cells that should be hidden.
+ If the "touch" flag is set, the panel gets touched before it is
+ updated.
+---------------------------------------------------------------------------*/
+#define PANEL_UPDATE(pan,panstart)\
+{ PANEL* pan2 = ((panstart) ? (panstart) : _nc_bottom_panel);\
+ while(pan2) {\
+ if ((pan2 != pan) && PANELS_OVERLAPPED(pan,pan2)) {\
+ int y,ix1,ix2,iy1,iy2;\
+ COMPUTE_INTERSECTION(pan,pan2,ix1,ix2,iy1,iy2);\
+ for(y = iy1; y <= iy2; y++) {\
+ if (is_linetouched(pan->win,y - PSTARTY(pan))) {\
+ struct ldat* line = &(pan2->win->_line[y - PSTARTY(pan2)]);\
+ CHANGED_RANGE(line,ix1-PSTARTX(pan2),ix2-PSTARTX(pan2));\
+ }\
+ }\
+ }\
+ pan2 = pan2->above;\
+ }\
+}
+
+/*+-------------------------------------------------------------------------
+ Remove panel from stack.
+---------------------------------------------------------------------------*/
+#define PANEL_UNLINK(pan,err) \
+{ err = ERR;\
+ if (pan) {\
+ if (IS_LINKED(pan)) {\
+ if ((pan)->below)\
+ (pan)->below->above = (pan)->above;\
+ if ((pan)->above)\
+ (pan)->above->below = (pan)->below;\
+ if ((pan) == _nc_bottom_panel) \
+ _nc_bottom_panel = (pan)->above;\
+ if ((pan) == _nc_top_panel) \
+ _nc_top_panel = (pan)->below;\
+ err = OK;\
+ }\
+ (pan)->above = (pan)->below = (PANEL*)0;\
+ }\
+}
+
+#define HIDE_PANEL(pan,err,err_if_unlinked)\
+ if (IS_LINKED(pan)) {\
+ Touchpan(pan);\
+ PANEL_UPDATE(pan,(PANEL*)0);\
+ PANEL_UNLINK(pan,err);\
+ } \
+ else {\
+ err = err_if_unlinked;\
+ }
+
+#endif /* NCURSES_PANEL_PRIV_H */