X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fbase%2Fwresize.c;h=bc6b5732ea41fe05aa46ed575c2db9af8d6b7389;hp=604f7f9ae4f0405c7523f9695f9d175f0c2e653a;hb=e33150410925e7858dacebb585a9bd90db683d86;hpb=2639531af0c3ca25b48e7bcb9c790fa566cc5892

diff --git a/ncurses/base/wresize.c b/ncurses/base/wresize.c
index 604f7f9a..bc6b5732 100644
--- a/ncurses/base/wresize.c
+++ b/ncurses/base/wresize.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2010,2011 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            *
@@ -27,12 +27,13 @@
  ****************************************************************************/
 
 /****************************************************************************
- *  Author: Thomas E. Dickey 1996-2002                                      *
+ *  Author: Thomas E. Dickey 1996-on                                        *
+ *     and: Juergen Pfeifer                                                 *
  ****************************************************************************/
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: wresize.c,v 1.25 2007/04/07 17:13:42 tom Exp $")
+MODULE_ID("$Id: wresize.c,v 1.35 2011/05/21 18:55:07 tom Exp $")
 
 static int
 cleanup_lines(struct ldat *data, int length)
@@ -53,8 +54,13 @@ repair_subwindows(WINDOW *cmp)
     WINDOWLIST *wp;
     struct ldat *pline = cmp->_line;
     int row;
+#ifdef USE_SP_WINDOWLIST
+    SCREEN *sp = _nc_screen_of(cmp);
+#endif
+
+    _nc_lock_global(curses);
 
-    for (wp = _nc_windows; wp != 0; wp = wp->next) {
+    for (each_window(SP_PARM, wp)) {
 	WINDOW *tst = &(wp->win);
 
 	if (tst->_parent == cmp) {
@@ -65,9 +71,9 @@ repair_subwindows(WINDOW *cmp)
 		tst->_parx = cmp->_maxx;
 
 	    if (tst->_maxy + tst->_pary > cmp->_maxy)
-		tst->_maxy = cmp->_maxy - tst->_pary;
+		tst->_maxy = (NCURSES_SIZE_T) (cmp->_maxy - tst->_pary);
 	    if (tst->_maxx + tst->_parx > cmp->_maxx)
-		tst->_maxx = cmp->_maxx - tst->_parx;
+		tst->_maxx = (NCURSES_SIZE_T) (cmp->_maxx - tst->_parx);
 
 	    for (row = 0; row <= tst->_maxy; ++row) {
 		tst->_line[row].text = &pline[tst->_pary + row].text[tst->_parx];
@@ -75,6 +81,7 @@ repair_subwindows(WINDOW *cmp)
 	    repair_subwindows(tst);
 	}
     }
+    _nc_unlock_global(curses);
 }
 
 /*
@@ -90,14 +97,16 @@ wresize(WINDOW *win, int ToLines, int ToCols)
     struct ldat *new_lines = 0;
 
 #ifdef TRACE
-    T((T_CALLED("wresize(%p,%d,%d)"), win, ToLines, ToCols));
+    T((T_CALLED("wresize(%p,%d,%d)"), (void *) win, ToLines, ToCols));
     if (win) {
 	TR(TRACE_UPDATE, ("...beg (%ld, %ld), max(%ld,%ld), reg(%ld,%ld)",
 			  (long) win->_begy, (long) win->_begx,
 			  (long) win->_maxy, (long) win->_maxx,
 			  (long) win->_regtop, (long) win->_regbottom));
-	if (_nc_tracing & TRACE_UPDATE)
+	if (USE_TRACEF(TRACE_UPDATE)) {
 	    _tracedump("...before", win);
+	    _nc_unlock_global(tracef);
+	}
     }
 #endif
 
@@ -148,7 +157,8 @@ wresize(WINDOW *win, int ToLines, int ToCols)
 	if (!(win->_flags & _SUBWIN)) {
 	    if (row <= size_y) {
 		if (ToCols != size_x) {
-		    if ((s = typeMalloc(NCURSES_CH_T, ToCols + 1)) == 0)
+		    s = typeMalloc(NCURSES_CH_T, (unsigned) ToCols + 1);
+		    if (s == 0)
 			returnCode(cleanup_lines(new_lines, row));
 		    for (col = 0; col <= ToCols; ++col) {
 			s[col] = (col <= size_x
@@ -159,13 +169,16 @@ wresize(WINDOW *win, int ToLines, int ToCols)
 		    s = win->_line[row].text;
 		}
 	    } else {
-		if ((s = typeMalloc(NCURSES_CH_T, ToCols + 1)) == 0)
+		s = typeMalloc(NCURSES_CH_T, (unsigned) ToCols + 1);
+		if (s == 0)
 		    returnCode(cleanup_lines(new_lines, row));
 		for (col = 0; col <= ToCols; ++col)
 		    s[col] = win->_nc_bkgd;
 	    }
-	} else {
+	} else if (pline != 0 && pline[win->_pary + row].text != 0) {
 	    s = &pline[win->_pary + row].text[win->_parx];
+	} else {
+	    s = 0;
 	}
 
 	if_USE_SCROLL_HINTS(new_lines[row].oldindex = row);
@@ -176,11 +189,11 @@ wresize(WINDOW *win, int ToLines, int ToCols)
 	if ((ToCols != size_x) || (row > size_y)) {
 	    if (end >= begin) {	/* growing */
 		if (new_lines[row].firstchar < begin)
-		    new_lines[row].firstchar = begin;
+		    new_lines[row].firstchar = (NCURSES_SIZE_T) begin;
 	    } else {		/* shrinking */
 		new_lines[row].firstchar = 0;
 	    }
-	    new_lines[row].lastchar = ToCols;
+	    new_lines[row].lastchar = (NCURSES_SIZE_T) ToCols;
 	}
 	new_lines[row].text = s;
     }
@@ -207,8 +220,8 @@ wresize(WINDOW *win, int ToLines, int ToCols)
      * Finally, adjust the parameters showing screen size and cursor
      * position:
      */
-    win->_maxx = ToCols;
-    win->_maxy = ToLines;
+    win->_maxx = (NCURSES_SIZE_T) ToCols;
+    win->_maxy = (NCURSES_SIZE_T) ToLines;
 
     if (win->_regtop > win->_maxy)
 	win->_regtop = win->_maxy;
@@ -232,8 +245,10 @@ wresize(WINDOW *win, int ToLines, int ToCols)
 		      (long) win->_begy, (long) win->_begx,
 		      (long) win->_maxy, (long) win->_maxx,
 		      (long) win->_regtop, (long) win->_regbottom));
-    if (_nc_tracing & TRACE_UPDATE)
+    if (USE_TRACEF(TRACE_UPDATE)) {
 	_tracedump("...after:", win);
+	_nc_unlock_global(tracef);
+    }
 #endif
     returnCode(OK);
 }