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authorThorsten Lockert <tholo@cvs.openbsd.org>1996-06-02 06:06:27 +0000
committerThorsten Lockert <tholo@cvs.openbsd.org>1996-06-02 06:06:27 +0000
commit97548ea6b6ae9322fb78df90b7633d40df4e11df (patch)
treeab5a82d85a6c89f0dfdb1e44cc10cc6d80167d0c /lib/libocurses/overwrite.c
parent4eae3aa9e113650162ffb0bbb09e47503936e77e (diff)
Install ncurses as -lcurses and <curses.h>
Install BSD curses library as -locurses and <ocurses.h>
Diffstat (limited to 'lib/libocurses/overwrite.c')
-rw-r--r--lib/libocurses/overwrite.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/lib/libocurses/overwrite.c b/lib/libocurses/overwrite.c
new file mode 100644
index 00000000000..e2d91bd0a8c
--- /dev/null
+++ b/lib/libocurses/overwrite.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 1981, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)overwrite.c 8.2 (Berkeley) 5/4/94";
+#endif /* not lint */
+
+#include <ctype.h>
+#include <string.h>
+
+#include "curses.h"
+
+/*
+ * overwrite --
+ * Writes win1 on win2 destructively.
+ */
+int
+overwrite(win1, win2)
+ register WINDOW *win1, *win2;
+{
+ register int x, y, endy, endx, starty, startx;
+
+#ifdef DEBUG
+ __CTRACE("overwrite: (%0.2o, %0.2o);\n", win1, win2);
+#endif
+ starty = max(win1->begy, win2->begy);
+ startx = max(win1->begx, win2->begx);
+ endy = min(win1->maxy + win1->begy, win2->maxy + win2->begx);
+ endx = min(win1->maxx + win1->begx, win2->maxx + win2->begx);
+ if (starty >= endy || startx >= endx)
+ return (OK);
+#ifdef DEBUG
+ __CTRACE("overwrite: from (%d, %d) to (%d, %d)\n",
+ starty, startx, endy, endx);
+#endif
+ x = endx - startx;
+ for (y = starty; y < endy; y++) {
+ (void)memcpy(
+ &win2->lines[y - win2->begy]->line[startx - win2->begx],
+ &win1->lines[y - win1->begy]->line[startx - win1->begx],
+ x * __LDATASIZE);
+ __touchline(win2, y, startx - win2->begx, endx - win2->begx,
+ 0);
+ }
+ return (OK);
+}