-/* PSPP - computes sample statistics.
- Copyright (C) 2004 Free Software Foundation, Inc.
- Written by John Darrington <john@darrington.wattle.id.au>
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 2015 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 2 of the
- License, or (at your option) any later version.
+ 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.
+ 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, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef BARCHART_H
#define BARCHART_H
-#include <output/chart.h>
+#include "libpspp/str.h"
+#include "libpspp/hmap.h"
+#include "data/value.h"
+#include "output/chart-item.h"
-enum bar_opts {
- BAR_GROUPED = 0,
- BAR_STACKED,
- BAR_RANGE
+
+struct category
+{
+ struct hmap_node node;
+ int idx; /* Unique zero based index */
+ struct string label; /* The label to be displayed for this category */
+ union value val; /* The value of this category */
+ int width; /* The width of VAL */
};
-void draw_barchart(struct chart *ch, const char *title,
- const char *xlabel, const char *ylabel, enum bar_opts opt);
-#endif
+struct barchart
+ {
+ struct chart_item chart_item;
+
+ /* The categories */
+ struct freq **cats;
+
+ /* The total number of categories (regardless of level) */
+ int n_nzcats;
+
+ /* The number of primary categories */
+ int n_pcats;
+
+ /* The largest count of all the categories */
+ double largest;
+
+ /* The label for the ordinate (vertical axis) */
+ char *ylabel;
+
+ /* The variables holding the categorical values */
+ const struct variable **var;
+ int n_vars;
+
+ int widths[2];
+
+ /* A hash table of struct category indexed by VAL */
+ struct hmap primaries;
+
+ /* A hash table of struct category indexed by VAL */
+ struct hmap secondaries;
+
+
+ /* A array of pointers to the members of the above hmap,
+ sorted by VAL */
+ struct category **ss;
+ };
+
+
+struct variable;
+struct freq;
+
+struct chart_item *barchart_create (const struct variable **, int n_vars,
+ const char *ylabel,
+ struct freq *const *, int n_cats);
+\f
+/* This boilerplate for barchart, a subclass of chart_item, was
+ autogenerated by mk-class-boilerplate. */
+
+#include <assert.h>
+#include "libpspp/cast.h"
+
+extern const struct chart_item_class barchart_class;
+
+/* Returns true if SUPER is a barchart, otherwise false. */
+static inline bool
+is_barchart (const struct chart_item *super)
+{
+ return super->class == &barchart_class;
+}
+
+/* Returns SUPER converted to barchart. SUPER must be a barchart, as
+ reported by is_barchart. */
+static inline struct barchart *
+to_barchart (const struct chart_item *super)
+{
+ assert (is_barchart (super));
+ return UP_CAST (super, struct barchart, chart_item);
+}
+
+/* Returns INSTANCE converted to chart_item. */
+static inline struct chart_item *
+barchart_super (const struct barchart *instance)
+{
+ return CONST_CAST (struct chart_item *, &instance->chart_item);
+}
+
+/* Increments INSTANCE's reference count and returns INSTANCE. */
+static inline struct barchart *
+barchart_ref (const struct barchart *instance)
+{
+ return to_barchart (chart_item_ref (&instance->chart_item));
+}
+
+/* Decrements INSTANCE's reference count, then destroys INSTANCE if
+ the reference count is now zero. */
+static inline void
+barchart_unref (struct barchart *instance)
+{
+ chart_item_unref (&instance->chart_item);
+}
+
+/* Returns true if INSTANCE's reference count is greater than 1,
+ false otherwise. */
+static inline bool
+barchart_is_shared (const struct barchart *instance)
+{
+ return chart_item_is_shared (&instance->chart_item);
+}
+
+static inline void
+barchart_submit (struct barchart *instance)
+{
+ chart_item_submit (&instance->chart_item);
+}
+\f
+#endif /* output/charts/barchart.h */
projects / pspp / blobdiff