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/*
Widgets for the Midnight Commander
Copyright (C) 1994-2023
Free Software Foundation, Inc.
Authors:
Radek Doulik, 1994, 1995
Miguel de Icaza, 1994, 1995
Jakub Jelinek, 1995
Andrej Borsenkow, 1996
Norbert Warmuth, 1997
Andrew Borodin <aborodin@vmail.ru>, 2009-2022
This file is part of the Midnight Commander.
The Midnight Commander 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 3 of the License,
or (at your option) any later version.
The Midnight Commander 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, see <http://www.gnu.org/licenses/>.
*/
/** \file radio.c
* \brief Source: WRadui widget (radiobuttons)
*/
#include <config.h>
#include <stdlib.h>
#include "lib/global.h"
#include "lib/tty/tty.h"
#include "lib/widget.h"
/*** global variables ****************************************************************************/
const global_keymap_t *radio_map = NULL;
/*** file scope macro definitions ****************************************************************/
/*** file scope type declarations ****************************************************************/
/*** forward declarations (file scope functions) *************************************************/
/*** file scope variables ************************************************************************/
/* --------------------------------------------------------------------------------------------- */
/*** file scope functions ************************************************************************/
/* --------------------------------------------------------------------------------------------- */
static cb_ret_t
radio_execute_cmd (WRadio * r, long command)
{
cb_ret_t ret = MSG_HANDLED;
Widget *w = WIDGET (r);
switch (command)
{
case CK_Up:
case CK_Top:
if (r->pos == 0)
return MSG_NOT_HANDLED;
if (command == CK_Top)
r->pos = 0;
else
r->pos--;
widget_draw (w);
return MSG_HANDLED;
case CK_Down:
case CK_Bottom:
if (r->pos == r->count - 1)
return MSG_NOT_HANDLED;
if (command == CK_Bottom)
r->pos = r->count - 1;
else
r->pos++;
widget_draw (w);
return MSG_HANDLED;
case CK_Select:
r->sel = r->pos;
widget_set_state (w, WST_FOCUSED, TRUE); /* Also draws the widget */
send_message (w->owner, w, MSG_NOTIFY, 0, NULL);
return MSG_HANDLED;
default:
ret = MSG_NOT_HANDLED;
break;
}
return ret;
}
/* --------------------------------------------------------------------------------------------- */
/* Return MSG_HANDLED if we want a redraw */
static cb_ret_t
radio_key (WRadio * r, int key)
{
long command;
command = widget_lookup_key (WIDGET (r), key);
if (command == CK_IgnoreKey)
return MSG_NOT_HANDLED;
return radio_execute_cmd (r, command);
}
/* --------------------------------------------------------------------------------------------- */
static cb_ret_t
radio_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
{
WRadio *r = RADIO (w);
int i;
switch (msg)
{
case MSG_HOTKEY:
for (i = 0; i < r->count; i++)
{
if (r->texts[i].hotkey != NULL)
{
int c;
c = g_ascii_tolower ((gchar) r->texts[i].hotkey[0]);
if (c != parm)
continue;
r->pos = i;
/* Take action */
send_message (w, sender, MSG_ACTION, CK_Select, data);
return MSG_HANDLED;
}
}
return MSG_NOT_HANDLED;
case MSG_KEY:
return radio_key (r, parm);
case MSG_ACTION:
return radio_execute_cmd (r, parm);
case MSG_CURSOR:
widget_gotoyx (r, r->pos, 1);
return MSG_HANDLED;
case MSG_DRAW:
{
gboolean focused;
focused = widget_get_state (w, WST_FOCUSED);
for (i = 0; i < r->count; i++)
{
widget_selectcolor (w, i == r->pos && focused, FALSE);
widget_gotoyx (w, i, 0);
tty_draw_hline (w->rect.y + i, w->rect.x, ' ', w->rect.cols);
tty_print_string ((r->sel == i) ? "(*) " : "( ) ");
hotkey_draw (w, r->texts[i], i == r->pos && focused);
}
return MSG_HANDLED;
}
case MSG_DESTROY:
for (i = 0; i < r->count; i++)
hotkey_free (r->texts[i]);
g_free (r->texts);
return MSG_HANDLED;
default:
return widget_default_callback (w, sender, msg, parm, data);
}
}
/* --------------------------------------------------------------------------------------------- */
static void
radio_mouse_callback (Widget * w, mouse_msg_t msg, mouse_event_t * event)
{
switch (msg)
{
case MSG_MOUSE_DOWN:
RADIO (w)->pos = event->y;
widget_select (w);
break;
case MSG_MOUSE_CLICK:
RADIO (w)->pos = event->y;
send_message (w, NULL, MSG_ACTION, CK_Select, NULL);
send_message (w->owner, w, MSG_POST_KEY, ' ', NULL);
break;
default:
break;
}
}
/* --------------------------------------------------------------------------------------------- */
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */
WRadio *
radio_new (int y, int x, int count, const char **texts)
{
WRect r0 = { y, x, count, 1 };
WRadio *r;
Widget *w;
int i, wmax = 0;
r = g_new (WRadio, 1);
w = WIDGET (r);
/* Compute the longest string */
r->texts = g_new (hotkey_t, count);
for (i = 0; i < count; i++)
{
int width;
r->texts[i] = hotkey_new (texts[i]);
width = hotkey_width (r->texts[i]);
wmax = MAX (width, wmax);
}
/* 4 is width of "(*) " */
r0.cols = 4 + wmax;
widget_init (w, &r0, radio_callback, radio_mouse_callback);
w->options |= WOP_SELECTABLE | WOP_WANT_CURSOR | WOP_WANT_HOTKEY;
w->keymap = radio_map;
r->pos = 0;
r->sel = 0;
r->count = count;
return r;
}
/* --------------------------------------------------------------------------------------------- */
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