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--- util.c.orig Wed Nov 13 23:56:22 2002
+++ util.c Wed Nov 13 23:53:41 2002
@@ -36,6 +36,7 @@
#include <stdio.h>
+static void ClearInLine(TScreen *screen, int row, int col, int len);
static void horizontal_copy_area();
static void vertical_copy_area();
@@ -706,6 +707,54 @@
/*
* Clear last part of cursor's line, inclusive.
*/
+ClearRightN (screen, n)
+register TScreen *screen;
+register int n;
+{
+ int i;
+ int len = (screen->max_col - screen->cur_col + 1);
+
+ if (n < 0) /* the remainder of the line */
+ n = screen->max_col + 1;
+ if (n == 0) /* default for 'ECH' */
+ n = 1;
+
+ if (len > n)
+ len = n;
+
+ ClearInLine(screen, screen->cur_row, screen->cur_col, len);
+}
+
+/*
+ * Clear the given row, for the given range of columns.
+ */
+static void
+ClearInLine(TScreen *screen, int row, int col, int len)
+{
+ if (col + len >= screen->max_col + 1) {
+ len = screen->max_col + 1 - col;
+ }
+
+ if (screen->cursor_state)
+ HideCursor();
+
+ screen->do_wrap = 0;
+
+ if (row - screen->topline <= screen->max_row) {
+ if (!AddToRefresh(screen)) {
+ if (screen->scroll_amt)
+ FlushScroll(screen);
+ XClearArea(screen->display,
+ VWindow(screen),
+ CursorX (screen, col),
+ CursorY (screen, row),
+ len * FontWidth(screen),
+ FontHeight(screen),
+ FALSE);
+ }
+ }
+}
+
ClearRight (screen)
register TScreen *screen;
{
|
