-/* 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) 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 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/>. */
-#include <config.h>
-#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 <libpspp/alloc.h>
-#include "manager.h"
-#include "output.h"
+/* Charts.
-#ifndef CHART_H
-#define CHART_H
+ A chart is abstract. Every actual chart is a subclass of chart. */
-#ifndef NO_CHARTS
-#include <plot.h>
-#endif
+#include <stdbool.h>
-struct chart {
+/* A chart.
-#ifndef NO_CHARTS
- plPlotter *lp ;
- plPlotterParams *pl_params;
-#else
- void *lp;
-#endif
- char *file_name;
- FILE *file;
+ 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. */
+ };
- /* The geometry of the chart
- See diagram at the foot of this file.
- */
-
- int data_top ;
- int data_right ;
- int data_bottom;
- int data_left ;
+struct chart *chart_ref (const struct chart *);
+void chart_unref (struct chart *);
+bool chart_is_shared (const struct chart *);
- int abscissa_top;
+const char *chart_get_title (const struct chart *);
+void chart_set_title (struct chart *, const char *);
- int ordinate_right ;
+void chart_submit (struct chart *);
- 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);
-
-#endif
+#endif /* output/chart.h */