Examine: Added the /PLOT=SPREADLEVEL option

[pspp] / src / output / charts / spreadlevel-plot.h

diff --git a/src/output/charts/spreadlevel-plot.h b/src/output/charts/spreadlevel-plot.h
new file mode 100644 (file)
index 0000000..550ccb9
--- /dev/null
+++ b/src/output/charts/spreadlevel-plot.h
@@ -0,0 +1,108 @@
+/* PSPP - a program for statistical analysis.
+   Copyright (C) 2012 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
+   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 OUTPUT_CHARTS_SL_PLOT_H
+#define OUTPUT_CHARTS_SL_PLOT_H 1
+
+#include "output/chart-item.h"
+
+struct datum 
+{
+  double x;
+  double y;
+};
+
+struct spreadlevel_plot_chart
+  {
+    struct chart_item chart_item;
+
+    /* Calculated parameters */
+    double y_lower, y_upper;
+    double x_lower, x_upper;
+
+    double tx_pwr;
+
+    size_t n_data;
+    struct datum *data;
+  };
+
+struct chart_item *spreadlevel_plot_create (const char *label, double slp);
+
+void spreadlevel_plot_add (struct chart_item *, double spread, double level);
+
+
+\f
+/* This boilerplate for spreadlevel_plot_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 spreadlevel_plot_chart_class;
+
+/* Returns true if SUPER is a spreadlevel_plot_chart, otherwise false. */
+static inline bool
+is_spreadlevel_plot_chart (const struct chart_item *super)
+{
+  return super->class == &spreadlevel_plot_chart_class;
+}
+
+/* Returns SUPER converted to spreadlevel_plot_chart.  SUPER must be a spreadlevel_plot_chart, as
+   reported by is_spreadlevel_plot_chart. */
+static inline struct spreadlevel_plot_chart *
+to_spreadlevel_plot_chart (const struct chart_item *super)
+{
+  assert (is_spreadlevel_plot_chart (super));
+  return UP_CAST (super, struct spreadlevel_plot_chart, chart_item);
+}
+
+/* Returns INSTANCE converted to chart_item. */
+static inline struct chart_item *
+spreadlevel_plot_chart_super (const struct spreadlevel_plot_chart *instance)
+{
+  return CONST_CAST (struct chart_item *, &instance->chart_item);
+}
+
+/* Increments INSTANCE's reference count and returns INSTANCE. */
+static inline struct spreadlevel_plot_chart *
+spreadlevel_plot_chart_ref (const struct spreadlevel_plot_chart *instance)
+{
+  return to_spreadlevel_plot_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
+spreadlevel_plot_chart_unref (struct spreadlevel_plot_chart *instance)
+{
+  chart_item_unref (&instance->chart_item);
+}
+
+/* Returns true if INSTANCE's reference count is greater than 1,
+   false otherwise. */
+static inline bool
+spreadlevel_plot_chart_is_shared (const struct spreadlevel_plot_chart *instance)
+{
+  return chart_item_is_shared (&instance->chart_item);
+}
+
+static inline void
+spreadlevel_plot_chart_submit (struct spreadlevel_plot_chart *instance)
+{
+  chart_item_submit (&instance->chart_item);
+}
+\f
+#endif