Update all #include directives to the currently preferred style.

[pspp-builds.git] / src / output / charts / plot-hist.h

diff --git a/src/output/charts/plot-hist.h b/src/output/charts/plot-hist.h
index 74b10bd3cfd98bd3eec5434d3c22ebedfe2295f0..bf3674b00e53b986848b1d5bc12f2138513549bc 100644 (file)
--- a/src/output/charts/plot-hist.h
+++ b/src/output/charts/plot-hist.h
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 2004, 2009 Free Software Foundation, Inc.
+   Copyright (C) 2004, 2009, 2011 Free Software Foundation, Inc.
 
    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
@@ -14,23 +14,92 @@
    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 PLOT_HIST_H
-#define PLOT_HIST_H
+#ifndef OUTPUT_PLOT_HIST_H
+#define OUTPUT_PLOT_HIST_H
 
+#include <gsl/gsl_histogram.h>
 #include <stdbool.h>
 
-struct chart;
-struct moments1;
-struct histogram;
-
-/* Plots a histogram of the data in HIST with the given LABEL.
-   Labels the histogram with each of N, MEAN, and STDDEV that is
-   not SYSMIS.  If all three are not SYSMIS and SHOW_NORMAL is
-   true, also draws a normal curve on the histogram. */
-void
-histogram_plot (const struct histogram *hist,
-                const char *label,
-                double n, double mean, double stddev,
-                bool show_normal);
-
-#endif
+#include "output/chart-item.h"
+
+struct histogram_chart
+  {
+    struct chart_item chart_item;
+    gsl_histogram *gsl_hist;
+    double n;
+    double mean;
+    double stddev;
+    bool show_normal;
+  };
+
+/* Creates and returns a new chart that depicts a histogram of
+   the data in HIST with the given LABEL.  Labels the histogram
+   with each of N, MEAN, and STDDEV that is not SYSMIS.  If all
+   three are not SYSMIS and SHOW_NORMAL is true, also draws a
+   normal curve on the histogram. */
+struct chart_item *histogram_chart_create (const gsl_histogram *,
+                                           const char *label, double n,
+                                           double mean, double stddev,
+                                           bool show_normal);
+\f
+/* This boilerplate for histogram_chart, a subclass of chart_item, was
+   autogenerated by mk-class-boilerplate. */
+
+#include <assert.h>
+#include "libpspp/cast.h"
+
+extern const struct chart_item_class histogram_chart_class;
+
+/* Returns true if SUPER is a histogram_chart, otherwise false. */
+static inline bool
+is_histogram_chart (const struct chart_item *super)
+{
+  return super->class == &histogram_chart_class;
+}
+
+/* Returns SUPER converted to histogram_chart.  SUPER must be a histogram_chart, as
+   reported by is_histogram_chart. */
+static inline struct histogram_chart *
+to_histogram_chart (const struct chart_item *super)
+{
+  assert (is_histogram_chart (super));
+  return UP_CAST (super, struct histogram_chart, chart_item);
+}
+
+/* Returns INSTANCE converted to chart_item. */
+static inline struct chart_item *
+histogram_chart_super (const struct histogram_chart *instance)
+{
+  return CONST_CAST (struct chart_item *, &instance->chart_item);
+}
+
+/* Increments INSTANCE's reference count and returns INSTANCE. */
+static inline struct histogram_chart *
+histogram_chart_ref (const struct histogram_chart *instance)
+{
+  return to_histogram_chart (chart_item_ref (&instance->chart_item));
+}
+
+/* Decrements INSTANCE's reference count, then destroys INSTANCE if
+   the reference count is now zero. */
+static inline void
+histogram_chart_unref (struct histogram_chart *instance)
+{
+  chart_item_unref (&instance->chart_item);
+}
+
+/* Returns true if INSTANCE's reference count is greater than 1,
+   false otherwise. */
+static inline bool
+histogram_chart_is_shared (const struct histogram_chart *instance)
+{
+  return chart_item_is_shared (&instance->chart_item);
+}
+
+static inline void
+histogram_chart_submit (struct histogram_chart *instance)
+{
+  chart_item_submit (&instance->chart_item);
+}
+\f
+#endif /* output/plot-hist.h */