/* PSPP - a program for statistical analysis.
- Copyright (C) 2004 Free Software Foundation, Inc.
+ Copyright (C) 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
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-#include <stdio.h>
-#include <float.h>
-#include <assert.h>
-#include <math.h>
+#ifndef OUTPUT_CHART_H
+#define OUTPUT_CHART_H 1
-#include <math/chart-geometry.h>
-#include <libpspp/str.h>
-#include "manager.h"
-#include "output.h"
+/* Charts.
-#include "xalloc.h"
+ A chart is abstract. Every actual chart is a subclass of chart. */
-#ifndef CHART_H
-#define CHART_H
+#include <stdbool.h>
-#ifndef NO_CHARTS
-#include <plot.h>
-#endif
+/* A chart.
-struct chart {
+ The members of struct chart should not be accessed directly. Use one
+ of the accessor functions defined below. */
+struct chart
+ {
+ int ref_cnt;
+ const struct chart_class *class; /* Subclass. */
+ char *title; /* May be null if there is no title. */
+ };
-#ifndef NO_CHARTS
- plPlotter *lp ;
- plPlotterParams *pl_params;
-#else
- void *lp;
-#endif
- char *file_name;
- FILE *file;
+struct chart *chart_ref (const struct chart *);
+void chart_unref (struct chart *);
+bool chart_is_shared (const struct chart *);
- /* The geometry of the chart
- See diagram at the foot of this file.
- */
+const char *chart_get_title (const struct chart *);
+void chart_set_title (struct chart *, const char *);
- int data_top ;
- int data_right ;
- int data_bottom;
- int data_left ;
+void chart_submit (struct chart *);
- int abscissa_top;
-
- int ordinate_right ;
-
- int title_bottom ;
-
- int legend_left ;
- int legend_right ;
-
-
- /* Default font size for the plot (if zero, then use plotter default) */
- int font_size;
-
- char fill_colour[10];
-
- /* Stuff Particular to Cartesians (and Boxplots ) */
- double ordinate_scale;
- double abscissa_scale;
- double x_min;
- double x_max;
- double y_min;
- double y_max;
-};
-
-
-
-struct chart * chart_create(void);
-void chart_submit(struct chart *ch);
-
-/* Helper functions for output drivers that put each chart into a
- separate file. */
-void chart_init_separate (struct chart *, const char *type,
- const char *file_name_tmpl, int number);
-
-void chart_finalise_separate (struct chart *);
-
-#endif
+#endif /* output/chart.h */