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/* uber-line-graph.h
*
* Copyright (C) 2010 Christian Hergert <chris@dronelabs.com>
*
* This program 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.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef __UBER_LINE_GRAPH_H__
#define __UBER_LINE_GRAPH_H__
#include <math.h>
#include "uber-graph.h"
#include "uber-range.h"
#include "uber-label.h"
G_BEGIN_DECLS
#define UBER_TYPE_LINE_GRAPH (uber_line_graph_get_type())
#define UBER_LINE_GRAPH(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), UBER_TYPE_LINE_GRAPH, UberLineGraph))
#define UBER_LINE_GRAPH_CONST(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), UBER_TYPE_LINE_GRAPH, UberLineGraph const))
#define UBER_LINE_GRAPH_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), UBER_TYPE_LINE_GRAPH, UberLineGraphClass))
#define UBER_IS_LINE_GRAPH(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), UBER_TYPE_LINE_GRAPH))
#define UBER_IS_LINE_GRAPH_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), UBER_TYPE_LINE_GRAPH))
#define UBER_LINE_GRAPH_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), UBER_TYPE_LINE_GRAPH, UberLineGraphClass))
#define UBER_LINE_GRAPH_NO_VALUE (NAN)
typedef struct _UberLineGraph UberLineGraph;
typedef struct _UberLineGraphClass UberLineGraphClass;
typedef struct _UberLineGraphPrivate UberLineGraphPrivate;
/**
* UberLineGraphFunc:
* @graph: A #UberLineGraph.
* @user_data: User data supplied to uber_line_graph_set_data_func().
*
* Callback prototype for retrieving the next data point in the graph.
*
* Returns: a value if successful, otherwise %UBER_LINE_GRAPH_NO_VALUE
* Side effects: Implementation dependent.
*/
typedef gdouble (*UberLineGraphFunc) (UberLineGraph *graph,
guint line,
gpointer user_data);
struct _UberLineGraph
{
UberGraph parent;
/*< private >*/
UberLineGraphPrivate *priv;
};
struct _UberLineGraphClass
{
UberGraphClass parent_class;
};
gint uber_line_graph_add_line (UberLineGraph *graph,
const GdkRGBA *color,
UberLabel *label);
cairo_antialias_t uber_line_graph_get_antialias (UberLineGraph *graph);
GType uber_line_graph_get_type (void) G_GNUC_CONST;
GtkWidget* uber_line_graph_new (void);
void uber_line_graph_set_antialias (UberLineGraph *graph,
cairo_antialias_t antialias);
void uber_line_graph_set_data_func (UberLineGraph *graph,
UberLineGraphFunc func,
gpointer user_data,
GDestroyNotify notify);
gboolean uber_line_graph_get_autoscale (UberLineGraph *graph);
void uber_line_graph_set_autoscale (UberLineGraph *graph,
gboolean autoscale);
const UberRange* uber_line_graph_get_range (UberLineGraph *graph);
void uber_line_graph_set_range (UberLineGraph *graph,
const UberRange *range);
void uber_line_graph_set_line_dash (UberLineGraph *graph,
guint line,
const gdouble *dashes,
gint num_dashes,
gdouble offset);
void uber_line_graph_set_line_width (UberLineGraph *graph,
gint line,
gdouble width);
void uber_line_graph_clear (UberLineGraph *graph);
G_END_DECLS
#endif /* __UBER_LINE_GRAPH_H__ */
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