-/* PSPP - computes sample statistics.
- Copyright (C) 2004 Free Software Foundation, Inc.
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 2004, 2009 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>
+#ifndef PLOT_CHART_H
+#define PLOT_CHART_H
+
+#include <cairo/cairo.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <math/chart-geometry.h>
#include <output/chart.h>
+#include <output/chart-provider.h>
+#include <libpspp/compiler.h>
#include <libpspp/str.h>
-#include <libpspp/alloc.h>
#include <output/manager.h>
#include <output/output.h>
+#define N_CHART_COLOURS 9
+extern const struct chart_colour data_colour[];
-#ifndef PLOT_CHART_H
-#define PLOT_CHART_H
+enum tick_orientation
+ {
+ TICK_ABSCISSA=0,
+ TICK_ORDINATE
+ };
+
+struct chart_geometry;
-extern const char *const data_colour[];
+enum marker_type
+ {
+ MARKER_CIRCLE, /* Hollow circle. */
+ MARKER_ASTERISK, /* Asterisk (*). */
+ MARKER_SQUARE /* Hollow square. */
+ };
-enum tick_orientation {
- TICK_ABSCISSA=0,
- TICK_ORDINATE
-};
+void chart_draw_marker (cairo_t *, double x, double y, enum marker_type,
+ double size);
+void chart_label (cairo_t *, int horz_justify, int vert_justify,
+ double font_size, const char *);
/* Draw a tick mark at position
If label is non zero, then print it at the tick mark
*/
-void draw_tick(struct chart *chart,
+void draw_tick(cairo_t *, const struct chart_geometry *,
enum tick_orientation orientation,
double position,
- const char *label, ...);
+ const char *label, ...)
+ PRINTF_FORMAT (5, 6);
/* Write the title on a chart*/
-void chart_write_title(struct chart *chart, const char *title, ...);
+void chart_write_title(cairo_t *, const struct chart_geometry *,
+ const char *title, ...)
+ PRINTF_FORMAT (3, 4);
/* Set the scale for the abscissa */
-void chart_write_xscale(struct chart *ch, double min, double max, int ticks);
+void chart_write_xscale(cairo_t *, struct chart_geometry *,
+ double min, double max, int ticks);
/* Set the scale for the ordinate */
-void chart_write_yscale(struct chart *ch, double smin, double smax, int ticks);
+void chart_write_yscale(cairo_t *, struct chart_geometry *,
+ double smin, double smax, int ticks);
-void chart_write_xlabel(struct chart *ch, const char *label) ;
+void chart_write_xlabel(cairo_t *, const struct chart_geometry *,
+ const char *label) ;
/* Write the ordinate label */
-void chart_write_ylabel(struct chart *ch, const char *label);
+void chart_write_ylabel(cairo_t *, const struct chart_geometry *,
+ const char *label);
+
+void chart_write_legend (cairo_t *, const struct chart_geometry *);
#endif