X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Foutput%2Fcharts%2Fpiechart.h;h=b59a7296d14e792031a595a1c024808c25a13451;hb=81579d9e9f994fb2908f50af41c3eb033d216e58;hp=d17ecec4092dddaebeb809b867aaea0684309e4a;hpb=43b1296aafe7582e7dbe6c2b6a8b478d7d9b0fcf;p=pspp-builds.git

diff --git a/src/output/charts/piechart.h b/src/output/charts/piechart.h
index d17ecec4..b59a7296 100644
--- a/src/output/charts/piechart.h
+++ b/src/output/charts/piechart.h
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 2004 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
@@ -17,14 +17,83 @@
 #ifndef PIECHART_H
 #define PIECHART_H
 
-struct slice {
-  const char *label;
-  double magnetude;
-};
+#include "libpspp/str.h"
+#include "output/chart-item.h"
 
-/* Draw a piechart */
-void piechart_plot(const char *title,
-		   const struct slice *slices, int n_slices);
+struct piechart
+  {
+    struct chart_item chart_item;
+    struct slice *slices;
+    int n_slices;
+  };
 
-#endif
+struct slice
+  {
+    struct string label;
+    double magnitude;
+  };
 
+struct chart_item *piechart_create (const char *title,
+                                    const struct slice *, int n_slices);
+
+/* This boilerplate for piechart, a subclass of chart_item, was
+   autogenerated by mk-class-boilerplate. */
+
+#include <assert.h>
+#include "libpspp/cast.h"
+
+extern const struct chart_item_class piechart_class;
+
+/* Returns true if SUPER is a piechart, otherwise false. */
+static inline bool
+is_piechart (const struct chart_item *super)
+{
+  return super->class == &piechart_class;
+}
+
+/* Returns SUPER converted to piechart.  SUPER must be a piechart, as
+   reported by is_piechart. */
+static inline struct piechart *
+to_piechart (const struct chart_item *super)
+{
+  assert (is_piechart (super));
+  return UP_CAST (super, struct piechart, chart_item);
+}
+
+/* Returns INSTANCE converted to chart_item. */
+static inline struct chart_item *
+piechart_super (const struct piechart *instance)
+{
+  return CONST_CAST (struct chart_item *, &instance->chart_item);
+}
+
+/* Increments INSTANCE's reference count and returns INSTANCE. */
+static inline struct piechart *
+piechart_ref (const struct piechart *instance)
+{
+  return to_piechart (chart_item_ref (&instance->chart_item));
+}
+
+/* Decrements INSTANCE's reference count, then destroys INSTANCE if
+   the reference count is now zero. */
+static inline void
+piechart_unref (struct piechart *instance)
+{
+  chart_item_unref (&instance->chart_item);
+}
+
+/* Returns true if INSTANCE's reference count is greater than 1,
+   false otherwise. */
+static inline bool
+piechart_is_shared (const struct piechart *instance)
+{
+  return chart_item_is_shared (&instance->chart_item);
+}
+
+static inline void
+piechart_submit (struct piechart *instance)
+{
+  chart_item_submit (&instance->chart_item);
+}
+
+#endif /* output/charts/piechart.h */