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author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/ipxe/src/hci/mucurses/widgets/editbox.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/hci/mucurses/widgets/editbox.c')
-rw-r--r-- | qemu/roms/ipxe/src/hci/mucurses/widgets/editbox.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/hci/mucurses/widgets/editbox.c b/qemu/roms/ipxe/src/hci/mucurses/widgets/editbox.c new file mode 100644 index 000000000..630a66e0b --- /dev/null +++ b/qemu/roms/ipxe/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., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include <string.h> +#include <assert.h> +#include <ipxe/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 ) ); + init_editstring ( &box->string, buf, 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 ) ); +} |