1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2015 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 #include "libpspp/str.h"
21 #include "libpspp/hmap.h"
22 #include "data/value.h"
23 #include "output/chart-item.h"
28 struct hmap_node node;
29 int idx; /* Unique zero based index */
30 struct string label; /* The label to be displayed for this category */
31 union value val; /* The value of this category */
32 int width; /* The width of VAL */
38 struct chart_item chart_item;
40 /* Should the chart be displayed as percentages */
46 /* The total number of categories (regardless of level) */
49 /* The number of primary categories */
52 /* The largest count of all the categories */
55 /* The sum of all the counts */
58 /* The label for the ordinate (vertical axis) */
61 /* The variables holding the categorical values */
62 const struct variable **var;
67 /* A hash table of struct category indexed by VAL */
68 struct hmap primaries;
70 /* A hash table of struct category indexed by VAL */
71 struct hmap secondaries;
74 /* A array of pointers to the members of the above hmap,
83 struct chart_item *barchart_create (const struct variable **, int n_vars,
84 const char *ylabel, bool percent,
85 struct freq *const *, int n_cats);
87 /* This boilerplate for barchart, a subclass of chart_item, was
88 autogenerated by mk-class-boilerplate. */
91 #include "libpspp/cast.h"
93 extern const struct chart_item_class barchart_class;
95 /* Returns true if SUPER is a barchart, otherwise false. */
97 is_barchart (const struct chart_item *super)
99 return super->class == &barchart_class;
102 /* Returns SUPER converted to barchart. SUPER must be a barchart, as
103 reported by is_barchart. */
104 static inline struct barchart *
105 to_barchart (const struct chart_item *super)
107 assert (is_barchart (super));
108 return UP_CAST (super, struct barchart, chart_item);
111 /* Returns INSTANCE converted to chart_item. */
112 static inline struct chart_item *
113 barchart_super (const struct barchart *instance)
115 return CONST_CAST (struct chart_item *, &instance->chart_item);
118 /* Increments INSTANCE's reference count and returns INSTANCE. */
119 static inline struct barchart *
120 barchart_ref (const struct barchart *instance)
122 return to_barchart (chart_item_ref (&instance->chart_item));
125 /* Decrements INSTANCE's reference count, then destroys INSTANCE if
126 the reference count is now zero. */
128 barchart_unref (struct barchart *instance)
130 chart_item_unref (&instance->chart_item);
133 /* Returns true if INSTANCE's reference count is greater than 1,
136 barchart_is_shared (const struct barchart *instance)
138 return chart_item_is_shared (&instance->chart_item);
142 barchart_submit (struct barchart *instance)
144 chart_item_submit (&instance->chart_item);
147 #endif /* output/charts/barchart.h */