/* PSPP - a program for statistical analysis.
- Copyright (C) 2009 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
#include <config.h>
-#include <output/charts/scree.h>
+#include "output/charts/scree.h"
#include <math.h>
-#include <output/cairo-chart.h>
+#include "output/cairo-chart.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
void
-xrchart_draw_scree (const struct chart_item *chart_item, cairo_t *cr,
+xrchart_draw_scree (const struct chart *chart, cairo_t *cr,
struct xrchart_geometry *geom)
{
- const struct scree *rc = to_scree (chart_item);
+ const struct scree *rc = to_scree (chart);
size_t i;
double min, max;
gsl_vector_minmax (rc->eval, &min, &max);
- if ( fabs (max) > fabs (min))
+ if (fabs (max) > fabs (min))
max = fabs (max);
else
max = fabs (min);
- xrchart_write_yscale (cr, geom, 0, max, max);
- xrchart_write_xscale (cr, geom, 0, rc->eval->size + 1, rc->eval->size + 1);
+ if (! xrchart_write_yscale (cr, geom, 0, max))
+ return;
+ if (! xrchart_write_xscale (cr, geom, 0, rc->eval->size + 1))
+ return;
xrchart_vector_start (cr, geom, "");
for (i = 0 ; i < rc->eval->size; ++i)