/*
* Copyright ( c ) 2014 Benjamin Otte < otte @ gnome . org >
*
* This library is free software ; you can redistribute it and / or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation ; either
* version 2 of the License , or ( at your option ) any later version .
*
* This library 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
* Lesser General Public License for more details .
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library . If not , see < http : //www.gnu.org/licenses/>.
*/
#include "config.h"
#include "graphdata.h"
enum {
PROP_0,
PROP_N_VALUES,
N_PROPS
};
static GParamSpec *props[N_PROPS] = { NULL, };
struct _GraphData
{
GObject parent;
guint n_values;
guint offset;
double *values;
};
G_DEFINE_TYPE (GraphData, graph_data, G_TYPE_OBJECT)
static void
graph_data_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec)
{
GraphData *graph = GRAPH_DATA (object);
switch (param_id)
{
case PROP_N_VALUES:
g_value_set_boolean (value, graph->n_values);
break ;
default :
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
}
}
static void
graph_data_finalize (GObject *object)
{
GraphData *graph = GRAPH_DATA (object);
g_free (graph->values);
G_OBJECT_CLASS (graph_data_parent_class)->finalize (object);
}
static void
graph_data_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec)
{
GraphData *graph = GRAPH_DATA (object);
switch (param_id)
{
case PROP_N_VALUES:
graph->n_values = g_value_get_uint (value);
graph->values = g_new0 (double , graph->n_values);
break ;
default :
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
}
}
static void
graph_data_class_init (GraphDataClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = graph_data_finalize;
object_class->get_property = graph_data_get_property;
object_class->set_property = graph_data_set_property;
props[PROP_N_VALUES] = g_param_spec_uint ("n-values" , NULL, NULL,
1 , G_MAXUINT, 1 ,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_NAME);
g_object_class_install_properties (object_class, N_PROPS, props);
}
static void
graph_data_init (GraphData *graph)
{
}
GraphData *
graph_data_new (guint n_values)
{
return g_object_new (graph_data_get_type (),
"n-values" , n_values,
NULL);
}
guint
graph_data_get_n_values (GraphData *data)
{
return data->n_values;
}
double
graph_data_get_value (GraphData *data,
guint i)
{
return data->values[(data->offset + i) % data->n_values];
}
double
graph_data_get_minimum (GraphData *data)
{
double minimum = G_MAXDOUBLE;
guint i;
for (i = 0 ; i < data->n_values; i++)
{
minimum = MIN (minimum, data->values[i]);
}
return minimum;
}
double
graph_data_get_maximum (GraphData *data)
{
double maximum = -G_MAXDOUBLE;
guint i;
for (i = 0 ; i < data->n_values; i++)
{
maximum = MAX (maximum, data->values[i]);
}
return maximum;
}
void
graph_data_prepend_value (GraphData *data,
double value)
{
data->offset = (data->offset + data->n_values - 1 ) % data->n_values;
data->values[data->offset] = value;
}
Messung V0.5 in Prozent C=98 H=95 G=96
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-07-02)
¤
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