qulogic/libgnt

closing merged branch
refresh-fixes
2019-04-11, Gary Kramlich
80028f1c0dd2
closing merged branch
/*
* GNT - The GLib Ncurses Toolkit
*
* GNT is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This library 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.
**/
#include "gntinternal.h"
#include "gntprogressbar.h"
#include "gntutils.h"
#include <string.h>
typedef struct _GntProgressBarPrivate
{
gdouble fraction;
gboolean show_value;
GntProgressBarOrientation orientation;
} GntProgressBarPrivate;
struct _GntProgressBar
{
GntWidget parent;
};
G_DEFINE_TYPE_WITH_PRIVATE (GntProgressBar, gnt_progress_bar, GNT_TYPE_WIDGET);
static void
gnt_progress_bar_draw (GntWidget *widget)
{
GntProgressBarPrivate *priv = gnt_progress_bar_get_instance_private (
GNT_PROGRESS_BAR (widget));
gchar progress[8];
gint start, end, i, pos;
int color;
g_snprintf (progress, sizeof (progress), "%.1f%%", priv->fraction * 100);
color = gnt_color_pair(GNT_COLOR_NORMAL);
switch (priv->orientation) {
case GNT_PROGRESS_LEFT_TO_RIGHT:
case GNT_PROGRESS_RIGHT_TO_LEFT:
start = (priv->orientation == GNT_PROGRESS_LEFT_TO_RIGHT ? 0 : (1.0 - priv->fraction) * widget->priv.width);
end = (priv->orientation == GNT_PROGRESS_LEFT_TO_RIGHT ? widget->priv.width * priv->fraction : widget->priv.width);
/* background */
for (i = 0; i < widget->priv.height; i++)
mvwhline (widget->window, i, 0, ' ' | color, widget->priv.width);
/* foreground */
for (i = 0; i < widget->priv.height; i++)
mvwhline (widget->window, i, start, ACS_CKBOARD | color | A_REVERSE, end);
/* text */
if (priv->show_value) {
pos = widget->priv.width / 2 - strlen (progress) / 2;
for (i = 0; i < progress[i]; i++, pos++) {
wattrset (widget->window, color | ((pos < start || pos > end) ? A_NORMAL : A_REVERSE));
mvwprintw (widget->window, widget->priv.height / 2, pos, "%c", progress[i]);
}
wattrset (widget->window, color);
}
break;
case GNT_PROGRESS_TOP_TO_BOTTOM:
case GNT_PROGRESS_BOTTOM_TO_TOP:
start = (priv->orientation == GNT_PROGRESS_TOP_TO_BOTTOM ? 0 : (1.0 - priv->fraction) * widget->priv.height);
end = (priv->orientation == GNT_PROGRESS_TOP_TO_BOTTOM ? widget->priv.height * priv->fraction : widget->priv.height);
/* background */
for (i = 0; i < widget->priv.width; i++)
mvwvline (widget->window, 0, i, ' ' | color, widget->priv.height);
/* foreground */
for (i = 0; i < widget->priv.width; i++)
mvwvline (widget->window, start, i, ACS_CKBOARD | color | A_REVERSE, end);
/* text */
if (priv->show_value) {
pos = widget->priv.height / 2 - strlen (progress) / 2;
for (i = 0; i < progress[i]; i++, pos++) {
wattrset (widget->window, color | ((pos < start || pos > end) ? A_NORMAL : A_REVERSE));
mvwprintw (widget->window, pos, widget->priv.width / 2, "%c\n", progress[i]);
}
wattrset (widget->window, color);
}
break;
default:
g_assert_not_reached ();
}
}
static void
gnt_progress_bar_size_request (GntWidget *widget)
{
gnt_widget_set_size (widget, widget->priv.minw, widget->priv.minh);
}
static void
gnt_progress_bar_class_init (GntProgressBarClass *klass)
{
GntWidgetClass *wclass = GNT_WIDGET_CLASS(klass);
wclass->draw = gnt_progress_bar_draw;
wclass->size_request = gnt_progress_bar_size_request;
}
static void
gnt_progress_bar_init (GntProgressBar *progress_bar)
{
GntWidget *widget = GNT_WIDGET (progress_bar);
GntProgressBarPrivate *priv =
gnt_progress_bar_get_instance_private (progress_bar);
gnt_widget_set_take_focus (widget, FALSE);
gnt_widget_set_has_border(widget, FALSE);
gnt_widget_set_has_shadow(widget, FALSE);
gnt_widget_set_grow_x(widget, TRUE);
widget->priv.minw = 8;
widget->priv.minh = 1;
priv->show_value = TRUE;
}
GntWidget *
gnt_progress_bar_new (void)
{
GntWidget *widget = g_object_new (GNT_TYPE_PROGRESS_BAR, NULL);
return widget;
}
void
gnt_progress_bar_set_fraction (GntProgressBar *pbar, gdouble fraction)
{
GntProgressBarPrivate *priv =
gnt_progress_bar_get_instance_private (pbar);
if (fraction > 1.0)
priv->fraction = 1.0;
else if (fraction < 0.0)
priv->fraction = 0.0;
else
priv->fraction = fraction;
if (gnt_widget_get_mapped(GNT_WIDGET(pbar))) {
gnt_widget_draw(GNT_WIDGET(pbar));
}
}
void
gnt_progress_bar_set_orientation (GntProgressBar *pbar,
GntProgressBarOrientation orientation)
{
GntProgressBarPrivate *priv =
gnt_progress_bar_get_instance_private (pbar);
GntWidget *widget = GNT_WIDGET(pbar);
priv->orientation = orientation;
if (orientation == GNT_PROGRESS_LEFT_TO_RIGHT ||
orientation == GNT_PROGRESS_RIGHT_TO_LEFT) {
gnt_widget_set_grow_x(widget, TRUE);
gnt_widget_set_grow_y(widget, FALSE);
widget->priv.minw = 8;
widget->priv.minh = 1;
} else {
gnt_widget_set_grow_x(widget, FALSE);
gnt_widget_set_grow_y(widget, TRUE);
widget->priv.minw = 1;
widget->priv.minh = 8;
}
if (gnt_widget_get_mapped(widget)) {
gnt_widget_draw(widget);
}
}
void
gnt_progress_bar_set_show_progress (GntProgressBar *pbar, gboolean show)
{
GntProgressBarPrivate *priv =
gnt_progress_bar_get_instance_private (pbar);
priv->show_value = show;
}
gdouble
gnt_progress_bar_get_fraction (GntProgressBar *pbar)
{
GntProgressBarPrivate *priv =
gnt_progress_bar_get_instance_private (pbar);
return priv->fraction;
}
GntProgressBarOrientation
gnt_progress_bar_get_orientation (GntProgressBar *pbar)
{
GntProgressBarPrivate *priv =
gnt_progress_bar_get_instance_private (pbar);
return priv->orientation;
}
gboolean
gnt_progress_bar_get_show_progress (GntProgressBar *pbar)
{
GntProgressBarPrivate *priv =
gnt_progress_bar_get_instance_private (pbar);
return priv->show_value;
}