X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=acre.h;h=7924cba2d26d38603b0318ac1d319a3f72ed6198;hb=3351362992de09bf601904f8c67da0eed58da32f;hp=df23199cbc0ea6a4a7230cadc1b48fbf818a0d85;hpb=803fba5eca929a4e0cb541223182eae86a96f9bb;p=acre

diff --git a/acre.h b/acre.h
index df23199..7924cba 100644
--- a/acre.h
+++ b/acre.h
@@ -89,7 +89,8 @@ void
 acre_set_y_axis_range_auto (acre_t *acre);
 
 /* Add a dataset to the plot. The plot assumes ownership of the
- * dataset so it is not necessary to call acre_data_destroy on it. */
+ * dataset so it is not necessary to call acre_data_destroy on it.
+ */
 void
 acre_add_data (acre_t *acre, acre_data_t *data);
 
@@ -111,6 +112,33 @@ acre_data_create (void);
 void
 acre_data_destroy (acre_data_t *data);
 
+/* The style to be used for rendering data sets. */
+typedef enum
+{
+	/* A simple line graph connection each (X,Y) pair in order. */
+	ACRE_STYLE_LINE,
+
+	/* A bar chart. */
+	ACRE_STYLE_BARS,
+
+	/* Bars if there is room for them, a line otherwise. */
+	ACRE_STYLE_BARS_OR_LINE,
+
+	/* A timeline.
+	 *
+	 * Each (X,Y) pair specifies the (start,stop) time of a
+	 * timeline bar.
+	 *
+	 * The acre_data_add_point_2d_named function is particularly
+	 * useful to provide a name for each timeline bar.
+	 */
+	ACRE_STYLE_TIMELINE
+} acre_style_t;
+
+/* Set the rendering style for this dataset. */
+void
+acre_data_set_style (acre_data_t *data, acre_style_t style);
+
 /* Set the label for this dataset (to appear in the plot's key). */
 void
 acre_data_set_name (acre_data_t *data, const char *name);
@@ -119,4 +147,9 @@ acre_data_set_name (acre_data_t *data, const char *name);
 void
 acre_data_add_point_2d (acre_data_t *data, double x, double y);
 
+/* Add a datapoint with a name to the given dataset. */
+void
+acre_data_add_point_2d_named (acre_data_t *data, double x, double y,
+			      const char *name);
+
 #endif /* ACRE_H */