1 files changed, 41 insertions, 0 deletions
diff --git a/src/gtk-valuegraph.h b/src/gtk-valuegraph.h
new file mode 100644
index 0000000..e048739
--- /dev/null
+++ b/src/gtk-valuegraph.h
@@ -0,0 +1,41 @@
+/*
+ * gtk-valuegraph.c
+ *
+ * A widget to display a graph of a sequence of values
+ *
+ * (c) 2006-2007 Thomas White <taw27@cam.ac.uk>
+ *
+ *  synth2d - two-dimensional Fourier synthesis
+ *
+ */
+
+#ifndef GTKVALUEGRAPH_H
+#define GTKVALUEGRAPH_H
+
+#include <gtk/gtk.h>
+
+typedef struct {
+
+	GtkDrawingArea parent;		/* Parent widget */
+	
+	double *data;			/* Data to be graphed */
+	unsigned int n;			/* Number of data points */
+	unsigned int xmax;		/* Maximum value on x (index) axis */
+	double ymax;			/* Maximum value on y (data) axis */
+	
+} GtkValueGraph;
+
+typedef struct {
+	GtkDrawingAreaClass parent_class;
+	void (* changed) (GtkValueGraph *gtkvaluegraph);
+} GtkValueGraphClass;
+
+extern guint gtk_value_graph_get_type(void);
+extern GtkWidget *gtk_value_graph_new(void);
+extern void gtk_value_graph_set_data(GtkValueGraph *vg, double *data, unsigned int n);
+
+#define GTK_VALUE_GRAPH(obj)		GTK_CHECK_CAST(obj, gtk_value_graph_get_type(), GtkValueGraph)
+#define GTK_VALUE_GRAPH_CLASS(class)	GTK_CHECK_CLASS_CAST(class, gtk_value_graph_get_type(), GtkValueGraphClass)
+#define GTK_IS_VALUE_GRAPH(obj)		GTK_CHECK_TYPE(obj, gtk_value_graph_get_type())
+
+#endif /* GTKVALUEGRAPH_H */