pintos-os.org Git - pspp/blob - src/output/spv-driver.c

   1 /* PSPP - a program for statistical analysis.
   2    Copyright (C) 2019 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
  16
  17 #include <config.h>
  18
  19 #include "output/driver-provider.h"
  20
  21 #include <stdlib.h>
  22
  23 #include "data/file-handle-def.h"
  24 #include "libpspp/cast.h"
  25 #include "output/cairo-chart.h"
  26 #include "output/chart-item.h"
  27 #include "output/group-item.h"
  28 #include "output/image-item.h"
  29 #include "output/page-eject-item.h"
  30 #include "output/page-setup-item.h"
  31 #include "output/table-item.h"
  32 #include "output/text-item.h"
  33 #include "output/spv/spv-writer.h"
  34
  35 #include "gl/xalloc.h"
  36
  37 #include "gettext.h"
  38 #define _(msgid) gettext (msgid)
  39
  40 struct spv_driver
  41   {
  42     struct output_driver driver;
  43     struct spv_writer *writer;
  44     struct file_handle *handle;
  45   };
  46
  47 static const struct output_driver_class spv_driver_class;
  48
  49 static struct spv_driver *
  50 spv_driver_cast (struct output_driver *driver)
  51 {
  52   assert (driver->class == &spv_driver_class);
  53   return UP_CAST (driver, struct spv_driver, driver);
  54 }
  55
  56 static struct output_driver *
  57 spv_create (struct file_handle *fh, enum settings_output_devices device_type,
  58              struct string_map *o UNUSED)
  59 {
  60   struct output_driver *d;
  61   struct spv_driver *spv;
  62
  63   spv = xzalloc (sizeof *spv);
  64   d = &spv->driver;
  65   spv->handle = fh;
  66   output_driver_init (&spv->driver, &spv_driver_class, fh_get_file_name (fh),
  67                       device_type);
  68
  69   char *error = spv_writer_open (fh_get_file_name (fh), &spv->writer);
  70   if (spv->writer == NULL)
  71     {
  72       msg (ME, "%s", error);
  73       goto error;
  74     }
  75
  76   return d;
  77
  78  error:
  79   output_driver_destroy (d);
  80   return NULL;
  81 }
  82
  83 static void
  84 spv_destroy (struct output_driver *driver)
  85 {
  86   struct spv_driver *spv = spv_driver_cast (driver);
  87
  88   char *error = spv_writer_close (spv->writer);
  89   if (error)
  90     msg (ME, "%s", error);
  91   fh_unref (spv->handle);
  92   free (spv);
  93 }
  94
  95 static void
  96 spv_submit (struct output_driver *driver,
  97              const struct output_item *output_item)
  98 {
  99   struct spv_driver *spv = spv_driver_cast (driver);
 100
 101   if (is_group_open_item (output_item))
 102     spv_writer_open_heading (spv->writer,
 103                              to_group_open_item (output_item)->command_name,
 104                              to_group_open_item (output_item)->command_name);
 105   else if (is_group_close_item (output_item))
 106     spv_writer_close_heading (spv->writer);
 107   else if (is_table_item (output_item))
 108     {
 109       const struct table_item *table_item = to_table_item (output_item);
 110       if (table_item->pt)
 111         spv_writer_put_table (spv->writer, table_item->pt);
 112     }
 113   else if (is_chart_item (output_item))
 114     {
 115       cairo_surface_t *surface = xr_draw_image_chart (
 116         to_chart_item (output_item),
 117         &(struct cell_color) CELL_COLOR_BLACK,
 118         &(struct cell_color) CELL_COLOR_WHITE);
 119       if (cairo_surface_status (surface) == CAIRO_STATUS_SUCCESS)
 120         spv_writer_put_image (spv->writer, surface);
 121       cairo_surface_destroy (surface);
 122     }
 123   else if (is_image_item (output_item))
 124     spv_writer_put_image (spv->writer, to_image_item (output_item)->image);
 125   else if (is_text_item (output_item))
 126     {
 127       char *command_id = output_get_command_name ();
 128       spv_writer_put_text (spv->writer, to_text_item (output_item),
 129                            command_id);
 130       free (command_id);
 131     }
 132   else if (is_page_eject_item (output_item))
 133     spv_writer_eject_page (spv->writer);
 134   else if (is_page_setup_item (output_item))
 135     spv_writer_set_page_setup (spv->writer,
 136                                to_page_setup_item (output_item)->page_setup);
 137 }
 138
 139 struct output_driver_factory spv_driver_factory =
 140   { "spv", "pspp.spv", spv_create };
 141
 142 static const struct output_driver_class spv_driver_class =
 143   {
 144     "spv",
 145     spv_destroy,
 146     spv_submit,
 147     NULL,
 148   };