#define BARCHART_H
#include "libpspp/str.h"
+#include "libpspp/hmap.h"
+#include "data/value.h"
#include "output/chart-item.h"
+
+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 */
+};
+
+
struct barchart
{
struct chart_item chart_item;
- struct slice *bars;
- int n_bars;
+
+ /* Should the chart be displayed as percentages */
+ bool percent;
+
+ /* 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 sum of all the counts */
+ double total_count;
+
+ /* 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,
+ (the secondaries) sorted by VAL */
+ struct category **ss;
};
-struct chart_item *barchart_create (const char *title, const char *ylabel,
- const struct slice *, int n_bars);
+
+struct variable;
+struct freq;
+
+struct chart_item *barchart_create (const struct variable **, int n_vars,
+ const char *ylabel, bool percent,
+ struct freq *const *, int n_cats);
\f
/* This boilerplate for barchart, a subclass of chart_item, was
autogenerated by mk-class-boilerplate. */