mc/lib/widget/gauge.c
Andrew Borodin 7257f794d2 Update template for .c files.
Add section for forward declarations of local functions. This section is
located before file scope variables because functions can be used in
strucutres (see find.c for example):

/*** forward declarations (file scope functions) *************************************************/

/* button callbacks */
static int start_stop (WButton * button, int action);
static int find_do_view_file (WButton * button, int action);
static int find_do_edit_file (WButton * button, int action);

/*** file scope variables ************************************************************************/

static struct
{
    ...
    bcback_fn callback;
} fbuts[] =
{
    ...
    { B_STOP, NORMAL_BUTTON, N_("S&uspend"), 0, 0, NULL, start_stop },
    ...
    { B_VIEW, NORMAL_BUTTON, N_("&View - F3"), 0, 0, NULL, find_do_view_file },
    { B_VIEW, NORMAL_BUTTON, N_("&Edit - F4"), 0, 0, NULL, find_do_edit_file }
};

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
2023-03-19 20:34:24 +03:00

179 lines
5.4 KiB
C

/*
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 gauge.c
* \brief Source: WGauge widget (progress indicator)
*/
#include <config.h>
#include <stdlib.h>
#include <string.h>
#include "lib/global.h"
#include "lib/tty/tty.h"
#include "lib/tty/color.h"
#include "lib/skin.h"
#include "lib/widget.h"
/*** global variables ****************************************************************************/
/*** file scope macro definitions ****************************************************************/
/*** file scope type declarations ****************************************************************/
/*** forward declarations (file scope functions) *************************************************/
/*** file scope variables ************************************************************************/
/* --------------------------------------------------------------------------------------------- */
/*** file scope functions ************************************************************************/
/* --------------------------------------------------------------------------------------------- */
static cb_ret_t
gauge_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
{
WGauge *g = GAUGE (w);
const int *colors;
switch (msg)
{
case MSG_DRAW:
colors = widget_get_colors (w);
widget_gotoyx (w, 0, 0);
if (!g->shown)
{
tty_setcolor (colors[DLG_COLOR_NORMAL]);
tty_printf ("%*s", w->rect.cols, "");
}
else
{
int gauge_len;
int percentage, columns;
int total = g->max;
int done = g->current;
if (total <= 0 || done < 0)
{
done = 0;
total = 100;
}
if (done > total)
done = total;
while (total > 65535)
{
total /= 256;
done /= 256;
}
gauge_len = w->rect.cols - 7; /* 7 positions for percentage */
percentage = (200 * done / total + 1) / 2;
columns = (2 * gauge_len * done / total + 1) / 2;
tty_print_char ('[');
if (g->from_left_to_right)
{
tty_setcolor (GAUGE_COLOR);
tty_printf ("%*s", columns, "");
tty_setcolor (colors[DLG_COLOR_NORMAL]);
tty_printf ("%*s] %3d%%", gauge_len - columns, "", percentage);
}
else
{
tty_setcolor (colors[DLG_COLOR_NORMAL]);
tty_printf ("%*s", gauge_len - columns, "");
tty_setcolor (GAUGE_COLOR);
tty_printf ("%*s", columns, "");
tty_setcolor (colors[DLG_COLOR_NORMAL]);
tty_printf ("] %3d%%", percentage);
}
}
return MSG_HANDLED;
default:
return widget_default_callback (w, sender, msg, parm, data);
}
}
/* --------------------------------------------------------------------------------------------- */
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */
WGauge *
gauge_new (int y, int x, int cols, gboolean shown, int max, int current)
{
WRect r = { y, x, 1, cols };
WGauge *g;
Widget *w;
g = g_new (WGauge, 1);
w = WIDGET (g);
widget_init (w, &r, gauge_callback, NULL);
g->shown = shown;
if (max == 0)
max = 1; /* I do not like division by zero :) */
g->max = max;
g->current = current;
g->from_left_to_right = TRUE;
return g;
}
/* --------------------------------------------------------------------------------------------- */
void
gauge_set_value (WGauge * g, int max, int current)
{
if (g->current == current && g->max == max)
return; /* Do not flicker */
if (max == 0)
max = 1; /* I do not like division by zero :) */
g->current = current;
g->max = max;
widget_draw (WIDGET (g));
}
/* --------------------------------------------------------------------------------------------- */
void
gauge_show (WGauge * g, gboolean shown)
{
if (g->shown != shown)
{
g->shown = shown;
widget_draw (WIDGET (g));
}
}
/* --------------------------------------------------------------------------------------------- */