/* PSPP - a program for statistical analysis.
- Copyright (C) 2004, 2009 Free Software Foundation, Inc.
+ Copyright (C) 2004, 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/chart.h>
-#include <output/chart-provider.h>
-
#include <assert.h>
-#include <errno.h>
-#include <float.h>
-#include <math.h>
-#include <stdarg.h>
-#include <stdio.h>
#include <stdlib.h>
-#include <string.h>
-#include <libpspp/str.h>
-#include <output/manager.h>
-#include <output/output.h>
+#include "libpspp/cast.h"
+#include "libpspp/compiler.h"
+#include "libpspp/str.h"
+#include "output/chart-provider.h"
+#include "output/output-item.h"
-#include "error.h"
-#include "xalloc.h"
+#include "gl/xalloc.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
-extern struct som_table_class tab_table_class;
-
-void
-chart_init (struct chart *chart, const struct chart_class *class)
-{
- chart->class = class;
- chart->ref_cnt = 1;
-}
-
-void
-chart_geometry_init (plPlotter *lp, struct chart_geometry *geom)
-{
- /* Start output page. */
- pl_openpl_r (lp);
-
- /* Set coordinate system. */
- pl_fspace_r (lp, 0.0, 0.0, 1000.0, 1000.0);
-
- /* Set line thickness. */
- pl_flinewidth_r (lp, 0.25);
- pl_pencolorname_r (lp, "black");
-
- /* Erase graphics display. */
- pl_erase_r (lp);
-
- pl_filltype_r (lp, 0);
- pl_savestate_r(lp);
-
- /* Set default chartetry. */
- geom->data_top = 900;
- geom->data_right = 800;
- geom->data_bottom = 120;
- geom->data_left = 150;
- geom->abscissa_top = 70;
- geom->ordinate_right = 120;
- geom->title_bottom = 920;
- geom->legend_left = 810;
- geom->legend_right = 1000;
- geom->font_size = 0;
- strcpy (geom->fill_colour, "red");
-
- /* Get default font size */
- if (!geom->font_size)
- geom->font_size = pl_fontsize_r (lp, -1);
-
- /* Draw the data area */
- pl_box_r (lp,
- geom->data_left, geom->data_bottom,
- geom->data_right, geom->data_top);
-}
-
-void
-chart_geometry_free (plPlotter *lp)
-{
- if (pl_closepl_r (lp) < 0)
- fprintf (stderr, "Couldn't close Plotter\n");
-}
-
-void
-chart_draw (const struct chart *chart, plPlotter *lp)
-{
- chart->class->draw (chart, lp);
-}
-
struct chart *
chart_ref (const struct chart *chart_)
{
- struct chart *chart = (struct chart *) chart_;
+ struct chart *chart = CONST_CAST (struct chart *, chart_);
+ assert (chart->ref_cnt > 0);
chart->ref_cnt++;
return chart;
}
void
chart_unref (struct chart *chart)
{
- if (chart != NULL)
+ if (chart)
{
assert (chart->ref_cnt > 0);
- if (--chart->ref_cnt == 0)
- chart->class->destroy (chart);
+ if (!--chart->ref_cnt)
+ {
+ char *title = chart->title;
+ chart->class->destroy (chart);
+ free (title);
+ }
}
}
-void
-chart_submit (struct chart *chart)
+bool
+chart_is_shared (const struct chart *chart)
{
-#ifdef HAVE_LIBPLOT
- struct outp_driver *d;
+ assert (chart->ref_cnt > 0);
+ return chart->ref_cnt > 1;
+}
- for (d = outp_drivers (NULL); d; d = outp_drivers (d))
- if (d->class->output_chart != NULL)
- d->class->output_chart (d, chart);
-#endif
+/* Initializes CHART as a chart of the specified CLASS. The new chart
+ initially has the specified TITLE, which may be NULL if no title is yet
+ available. The caller retains ownership of TITLE.
- chart_unref (chart);
+ A chart is abstract, that is, a plain chart is not useful on its own. Thus,
+ this function is normally called from the initialization function of some
+ subclass of chart. */
+void
+chart_init (struct chart *chart, const struct chart_class *class,
+ const char *title)
+{
+ *chart = (struct chart) {
+ .ref_cnt = 1,
+ .class = class,
+ .title = xstrdup_if_nonnull (title),
+ };
}
-bool
-chart_create_file (const char *type, const char *file_name_tmpl, int number,
- plPlotterParams *params, char **file_namep, plPlotter **lpp)
+/* Returns CHART's title, which is a null pointer if no title has been set. */
+const char *
+chart_get_title (const struct chart *chart)
{
- char *file_name = NULL;
- FILE *fp = NULL;
- int number_pos;
- plPlotter *lp;
-
- number_pos = strchr (file_name_tmpl, '#') - file_name_tmpl;
- file_name = xasprintf ("%.*s%d%s", number_pos, file_name_tmpl,
- number, file_name_tmpl + number_pos + 1);
-
- fp = fopen (file_name, "wb");
- if (fp == NULL)
- {
- error (0, errno, _("creating \"%s\""), file_name);
- goto error;
- }
+ return chart->title;
+}
- if (params != NULL)
- lp = pl_newpl_r (type, 0, fp, stderr, params);
- else
- {
- params = pl_newplparams ();
- lp = pl_newpl_r (type, 0, fp, stderr, params);
- pl_deleteplparams (params);
- }
- if (lp == NULL)
- goto error;
+/* Sets CHART's title to TITLE, replacing any previous title. Specify NULL for
+ TITLE to clear any title from CHART. The caller retains ownership of
+ TITLE.
- *file_namep = file_name;
- *lpp = lp;
- return true;
+ This function may only be used on a chart that is unshared. */
+void
+chart_set_title (struct chart *chart, const char *title)
+{
+ assert (!chart_is_shared (chart));
+ free (chart->title);
+ chart->title = xstrdup_if_nonnull (title);
+}
-error:
- if (fp != NULL)
- {
- fclose (fp);
- if (file_name != NULL)
- unlink (file_name);
- }
- free (file_name);
- *file_namep = NULL;
- *lpp = NULL;
- return false;
+/* Submits CHART to the configured output drivers, and transfers ownership to
+ the output subsystem. */
+void
+chart_submit (struct chart *chart)
+{
+ if (chart)
+ output_item_submit (chart_item_create (chart));
}
projects / pspp / blobdiff