1 files changed, 103 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/gpxe/src/hci/mucurses/widgets/editbox.c b/contrib/syslinux-4.02/gpxe/src/hci/mucurses/widgets/editbox.c
new file mode 100644
index 0000000..ee7d609
--- /dev/null
+++ b/contrib/syslinux-4.02/gpxe/src/hci/mucurses/widgets/editbox.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <string.h>
+#include <assert.h>
+#include <gpxe/editbox.h>
+
+/** @file
+ *
+ * Editable text box widget
+ *
+ */
+
+#define EDITBOX_MIN_CHARS 3
+
+/**
+ * Initialise text box widget
+ *
+ * @v box		Editable text box widget
+ * @v buf		Text buffer
+ * @v len		Size of text buffer
+ * @v win		Containing window
+ * @v row		Row
+ * @v col		Starting column
+ * @v width		Width
+ * @v flags		Flags
+ */
+void init_editbox ( struct edit_box *box, char *buf, size_t len,
+		    WINDOW *win, unsigned int row, unsigned int col,
+		    unsigned int width, unsigned int flags ) {
+	memset ( box, 0, sizeof ( *box ) );
+	box->string.buf = buf;
+	box->string.len = len;
+	box->string.cursor = strlen ( buf );
+	box->win = ( win ? win : stdscr );
+	box->row = row;
+	box->col = col;
+	box->width = width;
+	box->flags = flags;
+}
+
+/**
+ * Draw text box widget
+ *
+ * @v box		Editable text box widget
+ *
+ */
+void draw_editbox ( struct edit_box *box ) {
+	size_t width = box->width;
+	char buf[ width + 1 ];
+	signed int cursor_offset, underflow, overflow, first;
+	size_t len;
+
+	/* Adjust starting offset so that cursor remains within box */
+	cursor_offset = ( box->string.cursor - box->first );
+	underflow = ( EDITBOX_MIN_CHARS - cursor_offset );
+	overflow = ( cursor_offset - ( width - 1 ) );
+	first = box->first;
+	if ( underflow > 0 ) {
+		first -= underflow;
+		if ( first < 0 )
+			first = 0;
+	} else if ( overflow > 0 ) {
+		first += overflow;
+	}
+	box->first = first;
+	cursor_offset = ( box->string.cursor - first );
+
+	/* Construct underscore-padded string portion */
+	memset ( buf, '_', width );
+	buf[width] = '\0';
+	len = ( strlen ( box->string.buf ) - first );
+	if ( len > width )
+		len = width;
+	if ( box->flags & EDITBOX_STARS ) {
+		memset ( buf, '*', len );
+	} else {
+		memcpy ( buf, ( box->string.buf + first ), len );
+	}
+
+	/* Print box content and move cursor */
+	if ( ! box->win )
+		box->win = stdscr;
+	mvwprintw ( box->win, box->row, box->col, "%s", buf );
+	wmove ( box->win, box->row, ( box->col + cursor_offset ) );
+}