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-rw-r--r--lib/libpanel/panel.c817
1 files changed, 430 insertions, 387 deletions
diff --git a/lib/libpanel/panel.c b/lib/libpanel/panel.c
index 882f040435c..1b13f02ef0b 100644
--- a/lib/libpanel/panel.c
+++ b/lib/libpanel/panel.c
@@ -22,355 +22,401 @@
***************************************************************************/
/* panel.c -- implementation of panels library */
+#include "panel.priv.h"
-#ifdef TRACE
-#define PANEL_DEBUG
-#endif
-
-#include <stdlib.h>
-#include "panel.h"
+MODULE_ID("$Id: panel.c,v 1.2 1997/11/26 03:56:05 millert Exp $")
-typedef struct panelcons
+#ifdef TRACE
+extern char *_nc_visbuf(const char *);
+#ifdef TRACE_TXT
+#define USER_PTR(ptr) _nc_visbuf((const char *)ptr)
+#else
+static char *my_nc_visbuf(const void *ptr)
{
- struct panelcons *above;
- struct panel *pan;
+ char temp[40];
+ if (ptr != 0)
+ sprintf(temp, "ptr:%p", ptr);
+ else
+ strcpy(temp, "<null>");
+ return _nc_visbuf(temp);
}
-PANELCONS;
+#define USER_PTR(ptr) my_nc_visbuf((const char *)ptr)
+#endif
+#endif
-#define STATIC static
+static PANEL *__bottom_panel = (PANEL *)0;
+static PANEL *__top_panel = (PANEL *)0;
-STATIC PANEL *__bottom_panel = (PANEL *)0;
-STATIC PANEL *__top_panel = (PANEL *)0;
-STATIC PANEL __stdscr_pseudo_panel = { (WINDOW *)0 };
+static PANEL __stdscr_pseudo_panel = { (WINDOW *)0,
+ 0,0,0,0,
+ (PANEL *)0, (PANEL *)0,
+ (void *)0,
+ (PANELCONS *)0 };
-#ifdef PANEL_DEBUG
-#define dBug(x) _tracef x
-#else
-#define dBug(x)
-#endif
+/* Prototypes */
+static void __panel_link_bottom(PANEL *pan);
/*+-------------------------------------------------------------------------
dPanel(text,pan)
--------------------------------------------------------------------------*/
-#ifdef PANEL_DEBUG
-STATIC void
-dPanel(char *text, PANEL *pan)
+#ifdef TRACE
+static void
+dPanel(const char *text, const PANEL *pan)
{
_tracef("%s id=%s b=%s a=%s y=%d x=%d",
- text,pan->user,
- (pan->below) ? pan->below->user : "--",
- (pan->above) ? pan->above->user : "--",
+ text, USER_PTR(pan->user),
+ (pan->below) ? USER_PTR(pan->below->user) : "--",
+ (pan->above) ? USER_PTR(pan->above->user) : "--",
pan->wstarty, pan->wstartx);
-} /* end of dPanel */
+} /* end of dPanel */
#else
-#define dPanel(text,pan)
+# define dPanel(text,pan)
#endif
/*+-------------------------------------------------------------------------
dStack(fmt,num,pan)
--------------------------------------------------------------------------*/
-#ifdef PANEL_DEBUG
-STATIC void
-dStack(char *fmt, int num, PANEL *pan)
+#ifdef TRACE
+static void
+dStack(const char *fmt, int num, const PANEL *pan)
{
-char s80[80];
-
- sprintf(s80,fmt,num,pan);
- _tracef("%s b=%s t=%s",s80,
- (__bottom_panel) ? __bottom_panel->user : "--",
- (__top_panel) ? __top_panel->user : "--");
- if(pan)
- _tracef("pan id=%s",pan->user);
- pan = __bottom_panel;
- while(pan)
- {
- dPanel("stk",pan);
- pan = pan->above;
- }
-} /* end of dStack */
+ char s80[80];
+
+ snprintf(s80,sizeof(s80),fmt,num,pan);
+ _tracef("%s b=%s t=%s",s80,
+ (__bottom_panel) ? USER_PTR(__bottom_panel->user) : "--",
+ (__top_panel) ? USER_PTR(__top_panel->user) : "--");
+ if(pan)
+ _tracef("pan id=%s", USER_PTR(pan->user));
+ pan = __bottom_panel;
+ while(pan)
+ {
+ dPanel("stk",pan);
+ pan = pan->above;
+ }
+} /* end of dStack */
#else
-#define dStack(fmt,num,pan)
+# define dStack(fmt,num,pan)
#endif
/*+-------------------------------------------------------------------------
Wnoutrefresh(pan) - debugging hook for wnoutrefresh
--------------------------------------------------------------------------*/
-#ifdef PANEL_DEBUG
-STATIC void
-Wnoutrefresh(PANEL *pan)
+#ifdef TRACE
+static void
+Wnoutrefresh(const PANEL *pan)
{
- dPanel("wnoutrefresh",pan);
- wnoutrefresh(pan->win);
-} /* end of Wnoutrefresh */
+ dPanel("wnoutrefresh",pan);
+ wnoutrefresh(pan->win);
+} /* end of Wnoutrefresh */
#else
-#define Wnoutrefresh(pan) wnoutrefresh((pan)->win)
+# define Wnoutrefresh(pan) wnoutrefresh((pan)->win)
#endif
/*+-------------------------------------------------------------------------
Touchpan(pan)
--------------------------------------------------------------------------*/
-#ifdef PANEL_DEBUG
-STATIC void
-Touchpan(PANEL *pan)
+#ifdef TRACE
+static void
+Touchpan(const PANEL *pan)
{
- dPanel("Touchpan",pan);
- touchwin(pan->win);
-} /* end of Touchpan */
+ dPanel("Touchpan",pan);
+ touchwin(pan->win);
+} /* end of Touchpan */
#else
-#define Touchpan(pan) touchwin((pan)->win)
+# define Touchpan(pan) touchwin((pan)->win)
#endif
/*+-------------------------------------------------------------------------
Touchline(pan,start,count)
--------------------------------------------------------------------------*/
-#ifdef PANEL_DEBUG
-STATIC void
-Touchline(PANEL *pan, int start, int count)
+#ifdef TRACE
+static void
+Touchline(const PANEL *pan, int start, int count)
{
-char s80[80];
- sprintf(s80,"Touchline s=%d c=%d",start,count);
- dPanel(s80,pan);
- touchline(pan->win,start,count);
-} /* end of Touchline */
+ char s80[80];
+ snprintf(s80,sizeof(s80),"Touchline s=%d c=%d",start,count);
+ dPanel(s80,pan);
+ touchline(pan->win,start,count);
+} /* end of Touchline */
#else
-#define Touchline(pan,start,count) touchline((pan)->win,start,count)
+# define Touchline(pan,start,count) touchline((pan)->win,start,count)
#endif
/*+-------------------------------------------------------------------------
__panels_overlapped(pan1,pan2) - check panel overlapped
--------------------------------------------------------------------------*/
-STATIC int
-__panels_overlapped(register PANEL *pan1, register PANEL *pan2)
+static INLINE bool
+__panels_overlapped(register const PANEL *pan1, register const PANEL *pan2)
{
- if(!pan1 || !pan2)
- return(0);
- dBug(("__panels_overlapped %s %s",pan1->user,pan2->user));
- if((pan1->wstarty >= pan2->wstarty) && (pan1->wstarty < pan2->wendy) &&
- (pan1->wstartx >= pan2->wstartx) && (pan1->wstartx < pan2->wendx))
- return(1);
- if((pan1->wstarty >= pan1->wstarty) && (pan2->wstarty < pan1->wendy) &&
- (pan1->wstartx >= pan1->wstartx) && (pan2->wstartx < pan1->wendx))
- return(1);
- dBug((" no"));
- return(0);
-} /* end of __panels_overlapped */
+ if(!pan1 || !pan2)
+ return(FALSE);
+ dBug(("__panels_overlapped %s %s", USER_PTR(pan1->user), USER_PTR(pan2->user)));
+ /* pan1 intersects with pan2 ? */
+ if((pan1->wstarty >= pan2->wstarty) && (pan1->wstarty < pan2->wendy) &&
+ (pan1->wstartx >= pan2->wstartx) && (pan1->wstartx < pan2->wendx))
+ return(TRUE);
+ /* or vice versa test */
+ if((pan2->wstarty >= pan1->wstarty) && (pan2->wstarty < pan1->wendy) &&
+ (pan2->wstartx >= pan1->wstartx) && (pan2->wstartx < pan1->wendx))
+ return(TRUE);
+ dBug((" no"));
+ return(FALSE);
+} /* end of __panels_overlapped */
/*+-------------------------------------------------------------------------
__free_obscure(pan)
--------------------------------------------------------------------------*/
-STATIC void
+static INLINE void
__free_obscure(PANEL *pan)
{
-PANELCONS *tobs = pan->obscure; /* "this" one */
-PANELCONS *nobs; /* "next" one */
+ PANELCONS *tobs = pan->obscure; /* "this" one */
+ PANELCONS *nobs; /* "next" one */
+
+ while(tobs)
+ {
+ nobs = tobs->above;
+ free((char *)tobs);
+ tobs = nobs;
+ }
+ pan->obscure = (PANELCONS *)0;
+} /* end of __free_obscure */
- while(tobs) {
- nobs = tobs->above;
- free((char *)tobs);
- tobs = nobs;
- }
- pan->obscure = (PANELCONS *)0;
-} /* end of __free_obscure */
+/*+-------------------------------------------------------------------------
+ Get root (i.e. stdscr's) panel.
+ Establish the pseudo panel for stdscr if necessary.
+--------------------------------------------------------------------------*/
+static PANEL*
+__root_panel(void)
+{
+ if(!__stdscr_pseudo_panel.win)
+ { /* initialize those fields not already statically initialized */
+ assert(stdscr && !__bottom_panel && !__top_panel);
+ __stdscr_pseudo_panel.win = stdscr;
+ __stdscr_pseudo_panel.wendy = LINES;
+ __stdscr_pseudo_panel.wendx = COLS;
+#ifdef TRACE
+ __stdscr_pseudo_panel.user = "stdscr";
+#endif
+ __panel_link_bottom(&__stdscr_pseudo_panel);
+ }
+ return &__stdscr_pseudo_panel;
+}
/*+-------------------------------------------------------------------------
__override(pan,show)
--------------------------------------------------------------------------*/
-STATIC void
-__override(PANEL *pan, int show)
+static void
+__override(const PANEL *pan, int show)
{
-register y;
-register PANEL *pan2;
-PANELCONS *tobs = pan->obscure; /* "this" one */
-
- dBug(("__override %s,%d",pan->user,show));
-
- if(show == 1)
- Touchpan(pan);
- else if(!show) {
- Touchpan(pan);
-/*
- Touchline(&__stdscr_pseudo_panel,pan->wendy,getmaxy(pan->win));
-*/
- Touchpan(&__stdscr_pseudo_panel);
- } else if(show == -1) {
- while(tobs && (tobs->pan != pan))
- tobs = tobs->above;
+ int y;
+ PANEL *pan2;
+ PANELCONS *tobs = pan->obscure; /* "this" one */
+
+ dBug(("__override %s,%d", USER_PTR(pan->user),show));
+
+ switch (show)
+ {
+ case P_TOUCH:
+ Touchpan(pan);
+ /* The following while loop will now mark all panel window lines
+ * obscured by use or obscuring us as touched, so they will be
+ * updated.
+ */
+ break;
+ case P_UPDATE:
+ while(tobs && (tobs->pan != pan))
+ tobs = tobs->above;
+ /* The next loop will now only go through the panels obscuring pan;
+ * it updates all the lines in the obscuring panels in sync. with
+ * the lines touched in pan itself. This is called in update_panels()
+ * in a loop from the bottom_panel to the top_panel, resulting in
+ * the desired update effect.
+ */
+ break;
+ default:
+ return;
+ }
+
+ while(tobs)
+ {
+ if((pan2 = tobs->pan) != pan) {
+ dBug(("test obs pan=%s pan2=%s", USER_PTR(pan->user), USER_PTR(pan2->user)));
+ for(y = pan->wstarty; y < pan->wendy; y++) {
+ if( (y >= pan2->wstarty) && (y < pan2->wendy) &&
+ ((is_linetouched(pan->win,y - pan->wstarty) == TRUE)) )
+ Touchline(pan2,y - pan2->wstarty,1);
}
-
- while(tobs) {
- if((pan2 = tobs->pan) != pan) {
- dBug(("test obs pan=%s pan2=%s",pan->user,pan2->user));
- for(y = pan->wstarty; y < pan->wendy; y++) {
- if( (y >= pan2->wstarty) && (y < pan2->wendy) &&
- ((is_linetouched(pan->win,y - pan->wstarty) == 1) ||
- (is_linetouched(stdscr,y) == 1)))
- {
- Touchline(pan2,y - pan2->wstarty,1);
- }
- }
- }
- tobs = tobs->above;
- }
-} /* end of __override */
+ }
+ tobs = tobs->above;
+ }
+} /* end of __override */
/*+-------------------------------------------------------------------------
__calculate_obscure()
--------------------------------------------------------------------------*/
-STATIC void
+static void
__calculate_obscure(void)
{
-PANEL *pan;
-register PANEL *pan2;
-register PANELCONS *tobs; /* "this" one */
-PANELCONS *lobs = (PANELCONS *)0; /* last one */
-
- pan = __bottom_panel;
- while(pan) {
- if(pan->obscure)
- __free_obscure(pan);
- dBug(("--> __calculate_obscure %s",pan->user));
- lobs = (PANELCONS *)0; /* last one */
- pan2 = __bottom_panel;
- while(pan2) {
- if(__panels_overlapped(pan,pan2)) {
- if(!(tobs = (PANELCONS *)malloc(sizeof(PANELCONS))))
- return;
- tobs->pan = pan2;
- dPanel("obscured",pan2);
- tobs->above = (PANELCONS *)0;
- if(lobs)
- lobs->above = tobs;
- else
- pan->obscure = tobs;
- lobs = tobs;
- }
- pan2 = pan2->above;
- }
- __override(pan,1);
- pan = pan->above;
+ PANEL *pan;
+ PANEL *pan2;
+ PANELCONS *tobs; /* "this" one */
+ PANELCONS *lobs = (PANELCONS *)0; /* last one */
+
+ pan = __bottom_panel;
+ while(pan)
+ {
+ if(pan->obscure)
+ __free_obscure(pan);
+ dBug(("--> __calculate_obscure %s", USER_PTR(pan->user)));
+ lobs = (PANELCONS *)0; /* last one */
+ pan2 = __bottom_panel;
+ /* This loop builds a list of panels obsured by pan or obscuring
+ pan; pan itself is in the list; all panels before pan are
+ obscured by pan, all panels after pan are obscuring pan. */
+ while(pan2)
+ {
+ if(__panels_overlapped(pan,pan2))
+ {
+ if(!(tobs = (PANELCONS *)malloc(sizeof(PANELCONS))))
+ return;
+ tobs->pan = pan2;
+ dPanel("obscured",pan2);
+ tobs->above = (PANELCONS *)0;
+ if(lobs)
+ lobs->above = tobs;
+ else
+ pan->obscure = tobs;
+ lobs = tobs;
+ }
+ pan2 = pan2->above;
}
-
-} /* end of __calculate_obscure */
+ __override(pan,P_TOUCH);
+ pan = pan->above;
+ }
+} /* end of __calculate_obscure */
/*+-------------------------------------------------------------------------
__panel_is_linked(pan) - check to see if panel is in the stack
--------------------------------------------------------------------------*/
-STATIC int
-__panel_is_linked(PANEL *pan)
+static INLINE bool
+__panel_is_linked(const PANEL *pan)
{
-register PANEL *pan2 = __bottom_panel;
-
- while(pan2) {
- if(pan2 == pan)
- return(1);
- pan2 = pan2->above;
- }
- return(OK);
-} /* end of __panel_is_linked */
+ /* 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 */
+ return ( ((pan->above!=(PANEL *)0) ||
+ (pan->below!=(PANEL *)0) ||
+ (pan==__bottom_panel)) ? TRUE : FALSE );
+} /* end of __panel_is_linked */
/*+-------------------------------------------------------------------------
__panel_link_top(pan) - link panel into stack at top
--------------------------------------------------------------------------*/
-STATIC void
+static void
__panel_link_top(PANEL *pan)
{
-
-#ifdef PANEL_DEBUG
- dStack("<lt%d>",1,pan);
- if(__panel_is_linked(pan))
- return;
+#ifdef TRACE
+ dStack("<lt%d>",1,pan);
+ if(__panel_is_linked(pan))
+ return;
#endif
- pan->above = (PANEL *)0;
- pan->below = (PANEL *)0;
- if(__top_panel) {
- __top_panel->above = pan;
- pan->below = __top_panel;
- }
- __top_panel = pan;
- if(!__bottom_panel)
- __bottom_panel = pan;
- __calculate_obscure();
- dStack("<lt%d>",9,pan);
-
-} /* end of __panel_link_top */
+ pan->above = (PANEL *)0;
+ pan->below = (PANEL *)0;
+ if(__top_panel)
+ {
+ __top_panel->above = pan;
+ pan->below = __top_panel;
+ }
+ __top_panel = pan;
+ if(!__bottom_panel)
+ __bottom_panel = pan;
+ __calculate_obscure();
+ dStack("<lt%d>",9,pan);
+
+} /* end of __panel_link_top */
/*+-------------------------------------------------------------------------
__panel_link_bottom(pan) - link panel into stack at bottom
--------------------------------------------------------------------------*/
-STATIC void
+static void
__panel_link_bottom(PANEL *pan)
{
-
-#ifdef PANEL_DEBUG
- dStack("<lb%d>",1,pan);
- if(__panel_is_linked(pan))
- return;
+#ifdef TRACE
+ dStack("<lb%d>",1,pan);
+ if(__panel_is_linked(pan))
+ return;
#endif
- pan->above = (PANEL *)0;
- pan->below = (PANEL *)0;
- if(__bottom_panel) {
- __bottom_panel->below = pan;
- pan->above = __bottom_panel;
- }
- __bottom_panel = pan;
- if(!__top_panel)
- __top_panel = pan;
- __calculate_obscure();
- dStack("<lb%d>",9,pan);
-
-} /* end of __panel_link_bottom */
+ pan->above = (PANEL *)0;
+ pan->below = (PANEL *)0;
+ if(__bottom_panel)
+ { /* the stdscr pseudo panel always stays real bottom;
+ so we insert after bottom panel*/
+ pan->below = __bottom_panel;
+ pan->above = __bottom_panel->above;
+ if (pan->above)
+ pan->above->below = pan;
+ __bottom_panel->above = pan;
+ }
+ else
+ __bottom_panel = pan;
+ if(!__top_panel)
+ __top_panel = pan;
+ assert(__bottom_panel == &__stdscr_pseudo_panel);
+ __calculate_obscure();
+ dStack("<lb%d>",9,pan);
+} /* end of __panel_link_bottom */
/*+-------------------------------------------------------------------------
__panel_unlink(pan) - unlink panel from stack
--------------------------------------------------------------------------*/
-STATIC void
+static void
__panel_unlink(PANEL *pan)
{
-register PANEL *prev;
-register PANEL *next;
+ PANEL *prev;
+ PANEL *next;
-#ifdef PANEL_DEBUG
- dStack("<u%d>",1,pan);
- if(!__panel_is_linked(pan))
- return;
+#ifdef TRACE
+ dStack("<u%d>",1,pan);
+ if(!__panel_is_linked(pan))
+ return;
#endif
- __override(pan,0);
- __free_obscure(pan);
-
- prev = pan->below;
- next = pan->above;
+ __override(pan,P_TOUCH);
+ __free_obscure(pan);
- if(prev) { /* if non-zero, we will not update the list head */
- prev->above = next;
- if(next)
- next->below = prev;
- }
- else if(next)
- next->below = prev;
- if(pan == __bottom_panel)
- __bottom_panel = next;
- if(pan == __top_panel)
- __top_panel = prev;
+ prev = pan->below;
+ next = pan->above;
- __calculate_obscure();
+ if(prev)
+ { /* if non-zero, we will not update the list head */
+ prev->above = next;
+ if(next)
+ next->below = prev;
+ }
+ else if(next)
+ next->below = prev;
+ if(pan == __bottom_panel)
+ __bottom_panel = next;
+ if(pan == __top_panel)
+ __top_panel = prev;
- pan->above = (PANEL *)0;
- pan->below = (PANEL *)0;
- dStack("<u%d>",9,pan);
+ __calculate_obscure();
-} /* end of __panel_unlink */
+ pan->above = (PANEL *)0;
+ pan->below = (PANEL *)0;
+ dStack("<u%d>",9,pan);
+} /* end of __panel_unlink */
/*+-------------------------------------------------------------------------
panel_window(pan) - get window associated with panel
--------------------------------------------------------------------------*/
WINDOW *
-panel_window(PANEL *pan)
+panel_window(const PANEL *pan)
{
- return(pan->win);
-} /* end of panel_window */
+ return(pan ? pan->win : (WINDOW *)0);
+} /* end of panel_window */
/*+-------------------------------------------------------------------------
update_panels() - wnoutrefresh windows in an orderly fashion
@@ -378,25 +424,24 @@ panel_window(PANEL *pan)
void
update_panels(void)
{
-PANEL *pan;
-
- dBug(("--> update_panels"));
- pan = __bottom_panel;
- while(pan) {
- __override(pan,-1);
- pan = pan->above;
- }
-
- if(is_wintouched(stdscr) || (stdscr->_flags & _HASMOVED))
- Wnoutrefresh(&__stdscr_pseudo_panel);
-
- if(__bottom_panel) {
- for (pan = __bottom_panel; pan; pan = pan->above) {
- if(is_wintouched(pan->win))
- Wnoutrefresh(pan);
- }
- }
-} /* end of update_panels */
+ PANEL *pan;
+
+ dBug(("--> update_panels"));
+ pan = __bottom_panel;
+ while(pan)
+ {
+ __override(pan,P_UPDATE);
+ pan = pan->above;
+ }
+
+ pan = __bottom_panel;
+ while (pan)
+ {
+ if(is_wintouched(pan->win))
+ Wnoutrefresh(pan);
+ pan = pan->above;
+ }
+} /* end of update_panels */
/*+-------------------------------------------------------------------------
hide_panel(pan) - remove a panel from stack
@@ -404,22 +449,21 @@ PANEL *pan;
int
hide_panel(register PANEL *pan)
{
+ if(!pan)
+ return(ERR);
- if(!pan)
- return(ERR);
-
- dBug(("--> hide_panel %s",pan->user));
-
- if(!__panel_is_linked(pan)) {
- pan->above = (PANEL *)0;
- pan->below = (PANEL *)0;
- return(ERR);
- }
+ dBug(("--> hide_panel %s", USER_PTR(pan->user)));
- __panel_unlink(pan);
+ if(!__panel_is_linked(pan))
+ {
+ pan->above = (PANEL *)0;
+ pan->below = (PANEL *)0;
+ return(ERR);
+ }
- return(OK);
-} /* end of hide_panel */
+ __panel_unlink(pan);
+ return(OK);
+} /* end of hide_panel */
/*+-------------------------------------------------------------------------
show_panel(pan) - place a panel on top of stack
@@ -428,17 +472,16 @@ may already be in stack
int
show_panel(register PANEL *pan)
{
-
- if(!pan)
- return(ERR);
- if(pan == __top_panel)
- return(OK);
- dBug(("--> show_panel %s",pan->user));
- if(__panel_is_linked(pan))
- (void)hide_panel(pan);
- __panel_link_top(pan);
- return(OK);
-} /* end of show_panel */
+ if(!pan)
+ return(ERR);
+ if(pan == __top_panel)
+ return(OK);
+ dBug(("--> show_panel %s", USER_PTR(pan->user)));
+ if(__panel_is_linked(pan))
+ (void)hide_panel(pan);
+ __panel_link_top(pan);
+ return(OK);
+} /* end of show_panel */
/*+-------------------------------------------------------------------------
top_panel(pan) - place a panel on top of stack
@@ -446,8 +489,8 @@ show_panel(register PANEL *pan)
int
top_panel(register PANEL *pan)
{
- return(show_panel(pan));
-} /* end of top_panel */
+ return(show_panel(pan));
+} /* end of top_panel */
/*+-------------------------------------------------------------------------
del_panel(pan) - remove a panel from stack, if in it, and free struct
@@ -455,16 +498,16 @@ top_panel(register PANEL *pan)
int
del_panel(register PANEL *pan)
{
- if(pan)
- {
- dBug(("--> del_panel %s",pan->user));
- if(__panel_is_linked(pan))
- (void)hide_panel(pan);
- free((char *)pan);
- return(OK);
- }
- return(ERR);
-} /* end of del_panel */
+ if(pan)
+ {
+ dBug(("--> del_panel %s", USER_PTR(pan->user)));
+ if(__panel_is_linked(pan))
+ (void)hide_panel(pan);
+ free((void *)pan);
+ return(OK);
+ }
+ return(ERR);
+} /* end of del_panel */
/*+-------------------------------------------------------------------------
bottom_panel(pan) - place a panel on bottom of stack
@@ -473,16 +516,16 @@ may already be in stack
int
bottom_panel(register PANEL *pan)
{
- if(!pan)
- return(ERR);
- if(pan == __bottom_panel)
- return(OK);
- dBug(("--> bottom_panel %s",pan->user));
- if(__panel_is_linked(pan))
- (void)hide_panel(pan);
- __panel_link_bottom(pan);
- return(OK);
-} /* end of bottom_panel */
+ if(!pan)
+ return(ERR);
+ if(pan == __bottom_panel)
+ return(OK);
+ dBug(("--> bottom_panel %s", USER_PTR(pan->user)));
+ if(__panel_is_linked(pan))
+ (void)hide_panel(pan);
+ __panel_link_bottom(pan);
+ return(OK);
+} /* end of bottom_panel */
/*+-------------------------------------------------------------------------
new_panel(win) - create a panel and place on top of stack
@@ -490,83 +533,83 @@ bottom_panel(register PANEL *pan)
PANEL *
new_panel(WINDOW *win)
{
-PANEL *pan = (PANEL *)malloc(sizeof(PANEL));
-
- if(!__stdscr_pseudo_panel.win) {
- __stdscr_pseudo_panel.win = stdscr;
- __stdscr_pseudo_panel.wstarty = 0;
- __stdscr_pseudo_panel.wstartx = 0;
- __stdscr_pseudo_panel.wendy = LINES;
- __stdscr_pseudo_panel.wendx = COLS;
- __stdscr_pseudo_panel.user = "stdscr";
- __stdscr_pseudo_panel.obscure = (PANELCONS *)0;
- }
-
- if(pan) {
- pan->win = win;
- pan->above = (PANEL *)0;
- pan->below = (PANEL *)0;
- getbegyx(win, pan->wstarty, pan->wstartx);
- pan->wendy = pan->wstarty + getmaxy(win);
- pan->wendx = pan->wstartx + getmaxx(win);
-#ifdef PANEL_DEBUG
- pan->user = "new";
+ PANEL *pan = (PANEL *)malloc(sizeof(PANEL));
+
+ (void)__root_panel();
+
+ if(pan)
+ {
+ pan->win = win;
+ pan->above = (PANEL *)0;
+ pan->below = (PANEL *)0;
+ getbegyx(win, pan->wstarty, pan->wstartx);
+ pan->wendy = pan->wstarty + getmaxy(win);
+ pan->wendx = pan->wstartx + getmaxx(win);
+#ifdef TRACE
+ pan->user = "new";
#else
- pan->user = (char *)0;
+ pan->user = (char *)0;
#endif
- pan->obscure = (PANELCONS *)0;
- (void)show_panel(pan);
- }
-
- return(pan);
-} /* end of new_panel */
+ pan->obscure = (PANELCONS *)0;
+ (void)show_panel(pan);
+ }
+ return(pan);
+} /* end of new_panel */
/*+-------------------------------------------------------------------------
panel_above(pan)
--------------------------------------------------------------------------*/
PANEL *
-panel_above(PANEL *pan)
+panel_above(const PANEL *pan)
{
- if(!pan)
- return(__bottom_panel);
- else
- return(pan->above);
-} /* end of panel_above */
+ if(!pan)
+ {
+ /* if top and bottom are equal, we have no or only the pseudo panel;
+ if not, we return the panel above the pseudo panel */
+ return(__bottom_panel==__top_panel ? (PANEL*)0 : __bottom_panel->above);
+ }
+ else
+ return(pan->above);
+} /* end of panel_above */
/*+-------------------------------------------------------------------------
panel_below(pan)
--------------------------------------------------------------------------*/
PANEL *
-panel_below(PANEL *pan)
+panel_below(const PANEL *pan)
{
- if(!pan)
- return(__top_panel);
- else
- return(pan->below);
-} /* end of panel_below */
+ if(!pan)
+ {
+ /* if top and bottom are equal, we have no or only the pseudo panel */
+ return(__top_panel==__bottom_panel ? (PANEL*)0 : __top_panel);
+ }
+ else
+ {
+ /* we must not return the pseudo panel */
+ return(pan->below==__bottom_panel ? (PANEL*) 0 : pan->below);
+ }
+} /* end of panel_below */
/*+-------------------------------------------------------------------------
set_panel_userptr(pan,uptr)
--------------------------------------------------------------------------*/
int
-set_panel_userptr(PANEL *pan, char *uptr)
+set_panel_userptr(PANEL *pan, const void *uptr)
{
- if(!pan)
- return(ERR);
- pan->user = uptr;
- return(OK);
-} /* end of set_panel_userptr */
+ if(!pan)
+ return(ERR);
+ pan->user = uptr;
+ return(OK);
+} /* end of set_panel_userptr */
/*+-------------------------------------------------------------------------
panel_userptr(pan)
--------------------------------------------------------------------------*/
-char *
-panel_userptr(PANEL *pan)
+const void*
+panel_userptr(const PANEL *pan)
{
- if(!pan)
- return((char *)0);
- return(pan->user);
-} /* end of panel_userptr */
+ return(pan ? pan->user : (void *)0);
+} /* end of panel_userptr */
/*+-------------------------------------------------------------------------
move_panel(pan,starty,startx)
@@ -574,22 +617,22 @@ panel_userptr(PANEL *pan)
int
move_panel(PANEL *pan, int starty, int startx)
{
-WINDOW *win;
-
- if(!pan)
- return(ERR);
- if(__panel_is_linked(pan))
- __override(pan,0);
- win = pan->win;
- if(mvwin(win,starty,startx))
- return(ERR);
- getbegyx(win, pan->wstarty, pan->wstartx);
- pan->wendy = pan->wstarty + getmaxy(win);
- pan->wendx = pan->wstartx + getmaxx(win);
- if(__panel_is_linked(pan))
- __calculate_obscure();
- return(OK);
-} /* end of move_panel */
+ WINDOW *win;
+
+ if(!pan)
+ return(ERR);
+ if(__panel_is_linked(pan))
+ __override(pan,P_TOUCH);
+ win = pan->win;
+ if(mvwin(win,starty,startx))
+ return(ERR);
+ getbegyx(win, pan->wstarty, pan->wstartx);
+ pan->wendy = pan->wstarty + getmaxy(win);
+ pan->wendx = pan->wstartx + getmaxx(win);
+ if(__panel_is_linked(pan))
+ __calculate_obscure();
+ return(OK);
+} /* end of move_panel */
/*+-------------------------------------------------------------------------
replace_panel(pan,win)
@@ -597,25 +640,25 @@ WINDOW *win;
int
replace_panel(PANEL *pan, WINDOW *win)
{
- if(!pan)
- return(ERR);
- if(__panel_is_linked(pan))
- __override(pan,0);
- pan->win = win;
- if(__panel_is_linked(pan))
- __calculate_obscure();
- return(OK);
-} /* end of replace_panel */
+ if(!pan)
+ return(ERR);
+ if(__panel_is_linked(pan))
+ __override(pan,P_TOUCH);
+ pan->win = win;
+ if(__panel_is_linked(pan))
+ __calculate_obscure();
+ return(OK);
+} /* end of replace_panel */
/*+-------------------------------------------------------------------------
panel_hidden(pan)
--------------------------------------------------------------------------*/
int
-panel_hidden(PANEL *pan)
+panel_hidden(const PANEL *pan)
{
- if(!pan)
- return(ERR);
- return(__panel_is_linked(pan) ? ERR : OK);
-} /* end of panel_hidden */
+ if(!pan)
+ return(ERR);
+ return(__panel_is_linked(pan) ? TRUE : FALSE);
+} /* end of panel_hidden */
/* end of panel.c */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 01:27:48 +0000