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/*
Widgets for the Midnight Commander
Copyright (C) 1994-2022
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 ****************************************************************/
/*** 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));
}
}
/* --------------------------------------------------------------------------------------------- */
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