X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Foutput%2Fchart.c;h=6f1ce034a3a47875ccb51228513ce22de72e2199;hb=8a0397328b6230fd49724e1c6d91a5a545d2fb4b;hp=0fda467602981802a8fced9c18e890a2093f9740;hpb=a19b858e0ac3c69e4a28c0ca6d8674427268a863;p=pspp diff --git a/src/output/chart.c b/src/output/chart.c index 0fda467602..6f1ce034a3 100644 --- a/src/output/chart.c +++ b/src/output/chart.c @@ -1,122 +1,109 @@ -/* PSPP - computes sample statistics. - Copyright (C) 2004 Free Software Foundation, Inc. - Written by John Darrington +/* PSPP - a program for statistical analysis. + 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 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 . */ #include -#include -#include -#include -#include -#include -#include + #include -#include +#include + +#include "libpspp/cast.h" +#include "libpspp/compiler.h" +#include "libpspp/str.h" +#include "output/chart-provider.h" +#include "output/output-item.h" -#include "chart.h" -#include -#include -#include "manager.h" -#include "output.h" +#include "gl/xalloc.h" -extern struct som_table_class tab_table_class; +#include "gettext.h" +#define _(msgid) gettext (msgid) struct chart * -chart_create(void) +chart_ref (const struct chart *chart_) { - struct chart *chart; - struct outp_driver *d; - - d = outp_drivers (NULL); - if (d == NULL) - return NULL; - - chart = xmalloc (sizeof *chart); - d->class->initialise_chart(d, chart); - if (!chart->lp) - { - free (chart); - return NULL; - } - - if (pl_openpl_r (chart->lp) < 0) /* open Plotter */ - return NULL; - - pl_fspace_r (chart->lp, 0.0, 0.0, 1000.0, 1000.0); /* set coordinate system */ - pl_flinewidth_r (chart->lp, 0.25); /* set line thickness */ - pl_pencolorname_r (chart->lp, "black"); - - pl_erase_r (chart->lp); /* erase graphics display */ - pl_filltype_r(chart->lp,0); - - pl_savestate_r(chart->lp); - - /* Set default chartetry */ - chart->data_top = 900; - chart->data_right = 800; - chart->data_bottom = 120; - chart->data_left = 150; - chart->abscissa_top = 70; - chart->ordinate_right = 120; - chart->title_bottom = 920; - chart->legend_left = 810; - chart->legend_right = 1000; - chart->font_size = 0; - strcpy(chart->fill_colour,"red"); - - /* Get default font size */ - if ( !chart->font_size) - chart->font_size = pl_fontsize_r(chart->lp, -1); - - /* Draw the data area */ - pl_box_r(chart->lp, - chart->data_left, chart->data_bottom, - chart->data_right, chart->data_top); - + struct chart *chart = CONST_CAST (struct chart *, chart_); + assert (chart->ref_cnt > 0); + chart->ref_cnt++; return chart; } void -chart_submit(struct chart *chart) +chart_unref (struct chart *chart) { - struct som_entity s; - struct outp_driver *d; + if (chart) + { + assert (chart->ref_cnt > 0); + if (!--chart->ref_cnt) + { + char *title = chart->title; + chart->class->destroy (chart); + free (title); + } + } +} - if ( ! chart ) - return ; +bool +chart_is_shared (const struct chart *chart) +{ + assert (chart->ref_cnt > 0); + return chart->ref_cnt > 1; +} - pl_restorestate_r(chart->lp); +/* 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. - s.class = &tab_table_class; - s.ext = chart; - s.type = SOM_CHART; - som_submit (&s); - - if (pl_closepl_r (chart->lp) < 0) /* close Plotter */ - { - fprintf (stderr, "Couldn't close Plotter\n"); - } + 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), + }; +} - pl_deletepl_r(chart->lp); +/* Returns CHART's title, which is a null pointer if no title has been set. */ +const char * +chart_get_title (const struct chart *chart) +{ + return chart->title; +} - pl_deleteplparams(chart->pl_params); +/* 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. - d = outp_drivers (NULL); - d->class->finalise_chart(d, chart); - free(chart); + 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); } +/* 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)); +}