mc/lib/widget/button.c
Vladislav Grishenko 73eae56a99 Ticket #1634 (BS, Del incorrect works in CP866 locale)
fixed trouble with BS and Del in dialog input fields (in CP866 locale).

Signed-off-by: Vladislav Grishenko <themiron@mail.ru>
Signed-off-by: Ilia Maslakov <il.smind@gmail.com>
2011-01-05 23:09:53 +00:00

272 lines
7.3 KiB
C

/* Widgets for the Midnight Commander
Copyright (C) 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003,
2004, 2005, 2006, 2007, 2009, 2010 Free Software Foundation, Inc.
Authors: 1994, 1995 Radek Doulik
1994, 1995 Miguel de Icaza
1995 Jakub Jelinek
1996 Andrej Borsenkow
1997 Norbert Warmuth
2009, 2010 Andrew Borodin
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
(at your option) 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 button.c
* \brief Source: WButton widget
*/
#include <config.h>
#include <stdlib.h>
#include "lib/global.h"
#include "lib/tty/tty.h"
#include "lib/tty/mouse.h"
#include "lib/strutil.h"
#include "lib/widget.h"
/*** global variables ****************************************************************************/
/*** file scope macro definitions ****************************************************************/
/*** file scope type declarations ****************************************************************/
/*** file scope variables ************************************************************************/
/*** file scope functions ************************************************************************/
static cb_ret_t
button_callback (Widget * w, widget_msg_t msg, int parm)
{
WButton *b = (WButton *) w;
int stop = 0;
int off = 0;
Dlg_head *h = b->widget.owner;
switch (msg)
{
case WIDGET_HOTKEY:
/*
* Don't let the default button steal Enter from the current
* button. This is a workaround for the flawed event model
* when hotkeys are sent to all widgets before the key is
* handled by the current widget.
*/
if (parm == '\n' && (Widget *) h->current->data == &b->widget)
{
button_callback (w, WIDGET_KEY, ' ');
return MSG_HANDLED;
}
if (parm == '\n' && b->flags == DEFPUSH_BUTTON)
{
button_callback (w, WIDGET_KEY, ' ');
return MSG_HANDLED;
}
if (b->text.hotkey != NULL &&
g_ascii_tolower ((gchar) b->text.hotkey[0]) == parm)
{
button_callback (w, WIDGET_KEY, ' ');
return MSG_HANDLED;
}
return MSG_NOT_HANDLED;
case WIDGET_KEY:
if (parm != ' ' && parm != '\n')
return MSG_NOT_HANDLED;
if (b->callback != NULL)
stop = b->callback (b, b->action);
if (b->callback == NULL || stop != 0)
{
h->ret_value = b->action;
dlg_stop (h);
}
return MSG_HANDLED;
case WIDGET_CURSOR:
switch (b->flags)
{
case DEFPUSH_BUTTON:
off = 3;
break;
case NORMAL_BUTTON:
off = 2;
break;
case NARROW_BUTTON:
off = 1;
break;
case HIDDEN_BUTTON:
default:
off = 0;
break;
}
widget_move (&b->widget, 0, b->hotpos + off);
return MSG_HANDLED;
case WIDGET_UNFOCUS:
case WIDGET_FOCUS:
case WIDGET_DRAW:
if (msg == WIDGET_UNFOCUS)
b->selected = FALSE;
else if (msg == WIDGET_FOCUS)
b->selected = TRUE;
widget_selectcolor (w, b->selected, FALSE);
widget_move (w, 0, 0);
switch (b->flags)
{
case DEFPUSH_BUTTON:
tty_print_string ("[< ");
break;
case NORMAL_BUTTON:
tty_print_string ("[ ");
break;
case NARROW_BUTTON:
tty_print_string ("[");
break;
case HIDDEN_BUTTON:
default:
return MSG_HANDLED;
}
hotkey_draw (w, b->text, b->selected);
switch (b->flags)
{
case DEFPUSH_BUTTON:
tty_print_string (" >]");
break;
case NORMAL_BUTTON:
tty_print_string (" ]");
break;
case NARROW_BUTTON:
tty_print_string ("]");
break;
default:
break;
}
return MSG_HANDLED;
case WIDGET_DESTROY:
release_hotkey (b->text);
return MSG_HANDLED;
default:
return default_proc (msg, parm);
}
}
/* --------------------------------------------------------------------------------------------- */
static int
button_event (Gpm_Event * event, void *data)
{
WButton *b = data;
if ((event->type & (GPM_DOWN | GPM_UP)) != 0)
{
Dlg_head *h = b->widget.owner;
dlg_select_widget (b);
if ((event->type & GPM_UP) != 0)
{
button_callback (&b->widget, WIDGET_KEY, ' ');
h->callback (h, &b->widget, DLG_POST_KEY, ' ', NULL);
return MOU_NORMAL;
}
}
return MOU_NORMAL;
}
/* --------------------------------------------------------------------------------------------- */
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */
WButton *
button_new (int y, int x, int action, button_flags_t flags, const char *text, bcback_fn callback)
{
WButton *b;
b = g_new (WButton, 1);
b->action = action;
b->flags = flags;
b->text = parse_hotkey (text);
init_widget (&b->widget, y, x, 1, button_get_len (b), button_callback, button_event);
b->selected = FALSE;
b->callback = callback;
widget_want_hotkey (b->widget, TRUE);
b->hotpos = (b->text.hotkey != NULL) ? str_term_width1 (b->text.start) : -1;
return b;
}
/* --------------------------------------------------------------------------------------------- */
const char *
button_get_text (const WButton * b)
{
if (b->text.hotkey != NULL)
return g_strconcat (b->text.start, "&", b->text.hotkey, b->text.end, (char *) NULL);
return g_strdup (b->text.start);
}
/* --------------------------------------------------------------------------------------------- */
void
button_set_text (WButton * b, const char *text)
{
release_hotkey (b->text);
b->text = parse_hotkey (text);
b->widget.cols = button_get_len (b);
dlg_redraw (b->widget.owner);
}
/* --------------------------------------------------------------------------------------------- */
int
button_get_len (const WButton * b)
{
int ret = hotkey_width (b->text);
switch (b->flags)
{
case DEFPUSH_BUTTON:
ret += 6;
break;
case NORMAL_BUTTON:
ret += 4;
break;
case NARROW_BUTTON:
ret += 2;
break;
case HIDDEN_BUTTON:
default:
return 0;
}
return ret;
}
/* --------------------------------------------------------------------------------------------- */