X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Foutput%2Fcharts%2Fscatterplot.h;fp=src%2Foutput%2Fcharts%2Fscatterplot.h;h=e95562bbad9150d7032e9fadb24920d6dfff6f96;hb=80595f6de2ea8f0b64756d76c7ac3c89a1abbbb8;hp=0000000000000000000000000000000000000000;hpb=231c19141bf72ecf5696340a15622b1562c5fcc0;p=pspp
diff --git a/src/output/charts/scatterplot.h b/src/output/charts/scatterplot.h
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+/* PSPP - a program for statistical analysis.
+ Copyright (C) 2014 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 . */
+
+#ifndef OUTPUT_CHARTS_SCATTERPLOT_H
+#define OUTPUT_CHARTS_SCATTERPLOT_H 1
+
+#include "output/chart-item.h"
+
+/* A scatterplot. */
+struct scatterplot_chart
+ {
+ struct chart_item chart_item;
+ struct casereader *data;
+ const struct variable *xvar, *yvar, *byvar;
+
+ double y_min, y_max;
+ double x_min, x_max;
+ /* If the number of distinct values of byvar */
+ /* exceeds a certain limit, the warning flag */
+ /* is activated after the chart is drawn */
+ bool *byvar_overflow;
+ };
+
+struct scatterplot_chart *
+scatterplot_create (const struct casereader *,
+ const struct variable *,
+ const struct variable *,
+ const struct variable *,
+ bool *,
+ const char *label,
+ double xmin, double xmax, double ymin, double ymax);
+
+/* This boilerplate for scatterplot_chart, a subclass of chart_item, was
+ autogenerated by mk-class-boilerplate. */
+
+#include
+#include "libpspp/cast.h"
+
+extern const struct chart_item_class scatterplot_chart_class;
+
+/* Returns true if SUPER is a scatterplot_chart, otherwise false. */
+static inline bool
+is_scatterplot_chart (const struct chart_item *super)
+{
+ return super->class == &scatterplot_chart_class;
+}
+
+/* Returns SUPER converted to scatterplot_chart. SUPER must be a scatterplot_chart, as
+ reported by is_scatterplot_chart. */
+static inline struct scatterplot_chart *
+to_scatterplot_chart (const struct chart_item *super)
+{
+ assert (is_scatterplot_chart (super));
+ return UP_CAST (super, struct scatterplot_chart, chart_item);
+}
+
+/* Returns INSTANCE converted to chart_item. */
+static inline struct chart_item *
+scatterplot_chart_super (const struct scatterplot_chart *instance)
+{
+ return CONST_CAST (struct chart_item *, &instance->chart_item);
+}
+
+/* Increments INSTANCE's reference count and returns INSTANCE. */
+static inline struct scatterplot_chart *
+scatterplot_chart_ref (const struct scatterplot_chart *instance)
+{
+ return to_scatterplot_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
+scatterplot_chart_unref (struct scatterplot_chart *instance)
+{
+ chart_item_unref (&instance->chart_item);
+}
+
+/* Returns true if INSTANCE's reference count is greater than 1,
+ false otherwise. */
+static inline bool
+scatterplot_chart_is_shared (const struct scatterplot_chart *instance)
+{
+ return chart_item_is_shared (&instance->chart_item);
+}
+
+static inline void
+scatterplot_chart_submit (struct scatterplot_chart *instance)
+{
+ chart_item_submit (&instance->chart_item);
+}
+
+#endif /* output/charts/scatterplot.h */