1 /* PSPPIRE - a graphical user interface for PSPP.
2 Copyright (C) 2008-2015 Free Software Foundation.
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.
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.
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/>. */
19 #include "ui/gui/psppire-output-view.h"
24 #include "libpspp/assertion.h"
25 #include "libpspp/string-map.h"
26 #include "output/cairo.h"
27 #include "output/driver-provider.h"
28 #include "output/driver.h"
29 #include "output/chart-item.h"
30 #include "output/message-item.h"
31 #include "output/output-item.h"
32 #include "output/table-item.h"
33 #include "output/text-item.h"
35 #include "gl/c-xvasprintf.h"
36 #include "gl/minmax.h"
37 #include "gl/tmpdir.h"
38 #include "gl/xalloc.h"
41 #define _(msgid) gettext (msgid)
43 struct output_view_item
45 struct output_item *item;
46 GtkWidget *drawing_area;
49 struct psppire_output_view
59 struct string_map render_opts;
60 GtkTreeView *overview;
61 GtkTreeIter cur_command;
66 struct output_view_item *items;
67 size_t n_items, allocated_items;
69 /* Variables pertaining to printing */
70 GtkPrintSettings *print_settings;
71 struct xr_driver *print_xrd;
79 COL_NAME, /* Table name. */
80 COL_ADDR, /* Pointer to the table */
81 COL_Y, /* Y position of top of name. */
86 draw_callback (GtkWidget *widget, cairo_t *cr, gpointer data)
88 struct xr_rendering *r = g_object_get_data (G_OBJECT (widget), "rendering");
89 xr_rendering_draw_all (r, cr);
94 free_rendering (gpointer rendering_)
96 struct xr_rendering *rendering = rendering_;
97 xr_rendering_destroy (rendering);
101 create_xr (struct psppire_output_view *view)
103 struct text_item *text_item;
104 PangoFontDescription *font_desc;
105 struct xr_rendering *r;
111 GtkStyleContext *context = gtk_widget_get_style_context (GTK_WIDGET (view->output));
112 GtkStateFlags state = gtk_widget_get_state_flags (GTK_WIDGET (view->output));
115 gtk_style_context_get (context, state,
116 "font", &font_desc, "color", &fg_color, NULL);
118 cr = gdk_cairo_create (gtk_widget_get_window (GTK_WIDGET (view->output)));
120 /* Set the widget's text color as the foreground color for the output driver */
121 /* gdk_rgba_to_string() would be perfect, but xr's parse_color does not */
122 /* understand the rgb(255,128,33) format. Therefore we do it ourself. */
123 fgc = xasprintf("#%4x%4x%4x",(int)(fg_color->red*0xffff),
124 (int)(fg_color->green*0xffff),(int)(fg_color->blue*0xffff));
125 string_map_insert (&view->render_opts, "foreground-color", fgc);
127 gdk_rgba_free (fg_color);
129 /* Use GTK+ default font as proportional font. */
130 font_name = pango_font_description_to_string (font_desc);
131 string_map_insert (&view->render_opts, "prop-font", font_name);
134 /* Derived emphasized font from proportional font. */
135 pango_font_description_set_style (font_desc, PANGO_STYLE_ITALIC);
136 font_name = pango_font_description_to_string (font_desc);
137 string_map_insert (&view->render_opts, "emph-font", font_name);
139 pango_font_description_free (font_desc);
141 /* Pretend that the "page" has a reasonable width and a very big length,
142 so that most tables can be conveniently viewed on-screen with vertical
143 scrolling only. (The length should not be increased very much because
144 it is already close enough to INT_MAX when expressed as thousands of a
146 string_map_insert_nocopy (&view->render_opts, xstrdup ("paper-size"),
147 xasprintf ("%dx1000000pt", view->render_width));
148 string_map_insert (&view->render_opts, "left-margin", "0");
149 string_map_insert (&view->render_opts, "right-margin", "0");
150 string_map_insert (&view->render_opts, "top-margin", "0");
151 string_map_insert (&view->render_opts, "bottom-margin", "0");
153 view->xr = xr_driver_create (cr, &view->render_opts);
155 text_item = text_item_create (TEXT_ITEM_PARAGRAPH, "X");
156 r = xr_rendering_create (view->xr, text_item_super (text_item), cr);
157 xr_rendering_measure (r, &font_width, &view->font_height);
158 text_item_unref (text_item);
164 create_drawing_area (struct psppire_output_view *view,
165 GtkWidget *drawing_area, struct xr_rendering *r,
168 /* Enable this to help with debugging. It shows you which widgets are being
172 GdkRGBA green = {0, 1, 0, 1};
173 gtk_widget_override_background_color (view->output, GTK_STATE_NORMAL, &green);
174 GdkRGBA red = {1, 0, 0, 1};
175 gtk_widget_override_background_color (drawing_area, GTK_STATE_NORMAL, &red);
178 g_object_set_data_full (G_OBJECT (drawing_area),
179 "rendering", r, free_rendering);
181 g_signal_connect (drawing_area, "draw",
182 G_CALLBACK (draw_callback), view);
184 gtk_widget_set_size_request (drawing_area, tw, th);
185 gtk_layout_put (view->output, drawing_area, 0, view->y);
187 gtk_widget_show (drawing_area);
191 rerender (struct psppire_output_view *view)
193 struct output_view_item *item;
194 GdkWindow *gdkw = gtk_widget_get_window (GTK_WIDGET (view->output));
197 if (!view->n_items || ! gdkw)
200 cr = gdk_cairo_create (gdkw);
201 if (view->xr == NULL)
205 for (item = view->items; item < &view->items[view->n_items]; item++)
207 struct xr_rendering *r;
212 view->y += view->font_height / 2;
214 r = xr_rendering_create (view->xr, item->item, cr);
217 g_warn_if_reached ();
221 xr_rendering_measure (r, &tw, &th);
223 guint w = gdk_window_get_width (gdkw);
224 gint xpos = (gtk_widget_get_direction (GTK_WIDGET (view->output)) ==
225 GTK_TEXT_DIR_RTL) ? w - tw : 0;
227 if (!item->drawing_area)
229 item->drawing_area = gtk_drawing_area_new ();
230 create_drawing_area (view, item->drawing_area, r, tw, th);
234 g_object_set_data_full (G_OBJECT (item->drawing_area),
235 "rendering", r, free_rendering);
236 gtk_widget_set_size_request (item->drawing_area, tw, th);
237 gtk_layout_move (view->output, item->drawing_area, xpos, view->y);
244 gtk_widget_size_allocate(item->drawing_area,&alloc);
246 if (view->max_width < tw)
247 view->max_width = tw;
251 gtk_layout_set_size (view->output, view->max_width, view->y);
256 psppire_output_view_put (struct psppire_output_view *view,
257 const struct output_item *item)
259 struct output_view_item *view_item;
260 GtkWidget *drawing_area;
261 struct xr_rendering *r;
269 if (is_text_item (item))
271 const struct text_item *text_item = to_text_item (item);
272 enum text_item_type type = text_item_get_type (text_item);
273 const char *text = text_item_get_text (text_item);
275 if (type == TEXT_ITEM_COMMAND_CLOSE)
277 view->in_command = false;
280 else if (text[0] == '\0')
284 if (view->n_items >= view->allocated_items)
285 view->items = x2nrealloc (view->items, &view->allocated_items,
286 sizeof *view->items);
287 view_item = &view->items[view->n_items++];
288 view_item->item = output_item_ref (item);
289 view_item->drawing_area = NULL;
291 if (gtk_widget_get_window (GTK_WIDGET (view->output)))
293 view_item->drawing_area = drawing_area = gtk_drawing_area_new ();
295 cr = gdk_cairo_create (gtk_widget_get_window (GTK_WIDGET (view->output)));
296 if (view->xr == NULL)
300 view->y += view->font_height / 2;
302 r = xr_rendering_create (view->xr, item, cr);
306 xr_rendering_measure (r, &tw, &th);
308 create_drawing_area (view, drawing_area, r, tw, th);
314 && (!is_text_item (item)
315 || text_item_get_type (to_text_item (item)) != TEXT_ITEM_SYNTAX
316 || !view->in_command))
318 store = GTK_TREE_STORE (gtk_tree_view_get_model (view->overview));
320 ds_init_empty (&name);
321 if (is_text_item (item)
322 && text_item_get_type (to_text_item (item)) == TEXT_ITEM_COMMAND_OPEN)
324 gtk_tree_store_append (store, &iter, NULL);
325 view->cur_command = iter; /* XXX shouldn't save a GtkTreeIter */
326 view->in_command = true;
330 GtkTreeIter *p = view->in_command ? &view->cur_command : NULL;
331 gtk_tree_store_append (store, &iter, p);
335 if (is_text_item (item))
336 ds_put_cstr (&name, text_item_get_text (to_text_item (item)));
337 else if (is_message_item (item))
339 const struct message_item *msg_item = to_message_item (item);
340 const struct msg *msg = message_item_get_msg (msg_item);
341 ds_put_format (&name, "%s: %s", _("Message"),
342 msg_severity_to_string (msg->severity));
344 else if (is_table_item (item))
346 const char *title = table_item_get_title (to_table_item (item));
348 ds_put_format (&name, "Table: %s", title);
350 ds_put_cstr (&name, "Table");
352 else if (is_chart_item (item))
354 const char *s = chart_item_get_title (to_chart_item (item));
356 ds_put_format (&name, "Chart: %s", s);
358 ds_put_cstr (&name, "Chart");
360 gtk_tree_store_set (store, &iter,
361 COL_NAME, ds_cstr (&name),
367 path = gtk_tree_model_get_path (GTK_TREE_MODEL (store), &iter);
368 gtk_tree_view_expand_row (view->overview, path, TRUE);
369 gtk_tree_path_free (path);
372 if (view->max_width < tw)
373 view->max_width = tw;
376 gtk_layout_set_size (view->output, view->max_width, view->y);
383 on_row_activate (GtkTreeView *overview,
385 GtkTreeViewColumn *column,
386 struct psppire_output_view *view)
394 model = gtk_tree_view_get_model (overview);
395 if (!gtk_tree_model_get_iter (model, &iter, path))
398 gtk_tree_model_get_value (model, &iter, COL_Y, &value);
399 y = g_value_get_long (&value);
400 g_value_unset (&value);
402 vadj = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (view->output));
403 min = gtk_adjustment_get_lower (vadj);
404 max = gtk_adjustment_get_upper (vadj) - gtk_adjustment_get_page_size (vadj);
409 gtk_adjustment_set_value (vadj, y);
413 on_style_updated (GtkWidget *toplevel, struct psppire_output_view *view)
415 if (!view->n_items || !gtk_widget_get_window (GTK_WIDGET (view->output)))
417 string_map_clear (&view->render_opts);
418 xr_driver_destroy (view->xr);
431 /* GNU Hurd doesn't have PATH_MAX. Use a fallback.
432 Temporary directory names are usually not that long. */
434 # define PATH_MAX 1024
438 clipboard_get_cb (GtkClipboard *clipboard,
439 GtkSelectionData *selection_data,
443 struct psppire_output_view *view = data;
447 struct output_driver *driver = NULL;
448 char dirname[PATH_MAX], *filename;
449 struct string_map options;
451 GtkTreeSelection *sel = gtk_tree_view_get_selection (view->overview);
452 GtkTreeModel *model = gtk_tree_view_get_model (view->overview);
454 GList *rows = gtk_tree_selection_get_selected_rows (sel, &model);
460 if (path_search (dirname, sizeof dirname, NULL, NULL, true)
461 || mkdtemp (dirname) == NULL)
463 msg_error (errno, _("failed to create temporary directory during clipboard operation"));
466 filename = xasprintf ("%s/clip.tmp", dirname);
468 string_map_init (&options);
469 string_map_insert (&options, "output-file", filename);
473 case SELECT_FMT_UTF8:
474 string_map_insert (&options, "box", "unicode");
477 case SELECT_FMT_TEXT:
478 string_map_insert (&options, "format", "txt");
481 case SELECT_FMT_HTML:
482 string_map_insert (&options, "format", "html");
483 string_map_insert (&options, "borders", "false");
484 string_map_insert (&options, "css", "false");
488 string_map_insert (&options, "format", "odt");
492 g_warning ("unsupported clip target\n");
497 driver = output_driver_create (&options);
503 GtkTreePath *path = n->data ;
505 struct output_item *item ;
507 gtk_tree_model_get_iter (model, &iter, path);
508 gtk_tree_model_get (model, &iter, COL_ADDR, &item, -1);
510 driver->class->submit (driver, item);
515 if ( driver->class->flush)
516 driver->class->flush (driver);
519 /* Some drivers (eg: the odt one) don't write anything until they
521 output_driver_destroy (driver);
524 if ( g_file_get_contents (filename, &text, &length, NULL) )
526 gtk_selection_data_set (selection_data, gtk_selection_data_get_target (selection_data),
528 (const guchar *) text, length);
534 output_driver_destroy (driver);
546 clipboard_clear_cb (GtkClipboard *clipboard,
551 static const GtkTargetEntry targets[] = {
553 { "STRING", 0, SELECT_FMT_TEXT },
554 { "TEXT", 0, SELECT_FMT_TEXT },
555 { "COMPOUND_TEXT", 0, SELECT_FMT_TEXT },
556 { "text/plain", 0, SELECT_FMT_TEXT },
558 { "UTF8_STRING", 0, SELECT_FMT_UTF8 },
559 { "text/plain;charset=utf-8", 0, SELECT_FMT_UTF8 },
561 { "text/html", 0, SELECT_FMT_HTML },
563 { "application/vnd.oasis.opendocument.text", 0, SELECT_FMT_ODT }
567 on_copy (struct psppire_output_view *view)
569 GtkWidget *widget = GTK_WIDGET (view->overview);
570 GtkClipboard *cb = gtk_widget_get_clipboard (widget, GDK_SELECTION_CLIPBOARD);
572 if (!gtk_clipboard_set_with_data (cb, targets, G_N_ELEMENTS (targets),
573 clipboard_get_cb, clipboard_clear_cb,
575 clipboard_clear_cb (cb, view);
579 on_selection_change (GtkTreeSelection *sel, GtkAction *copy_action)
581 /* The Copy action is available only if there is something selected */
582 gtk_action_set_sensitive (copy_action, gtk_tree_selection_count_selected_rows (sel) > 0);
586 on_select_all (struct psppire_output_view *view)
588 GtkTreeSelection *sel = gtk_tree_view_get_selection (view->overview);
589 gtk_tree_view_expand_all (view->overview);
590 gtk_tree_selection_select_all (sel);
594 on_size_allocate (GtkWidget *widget,
595 GdkRectangle *allocation,
596 struct psppire_output_view *view)
598 int new_render_width = MAX (300, allocation->width);
600 if (view->render_width != new_render_width)
602 view->render_width = new_render_width;
607 struct psppire_output_view *
608 psppire_output_view_new (GtkLayout *output, GtkTreeView *overview,
609 GtkAction *copy_action, GtkAction *select_all_action)
611 struct psppire_output_view *view;
612 GtkTreeViewColumn *column;
613 GtkCellRenderer *renderer;
614 GtkTreeSelection *sel;
617 view = xmalloc (sizeof *view);
619 view->font_height = 0;
620 view->output = output;
621 view->render_width = 0;
624 string_map_init (&view->render_opts);
625 view->overview = overview;
626 memset (&view->cur_command, 0, sizeof view->cur_command);
627 view->in_command = false;
628 view->toplevel = gtk_widget_get_toplevel (GTK_WIDGET (output));
630 view->n_items = view->allocated_items = 0;
631 view->print_settings = NULL;
632 view->print_xrd = NULL;
633 view->print_item = 0;
634 view->print_n_pages = 0;
635 view->paginated = FALSE;
637 g_signal_connect (output, "style-updated", G_CALLBACK (on_style_updated), view);
639 g_signal_connect (output, "size-allocate", G_CALLBACK (on_size_allocate), view);
641 gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (output)),
642 GTK_STYLE_CLASS_VIEW);
646 model = GTK_TREE_MODEL (gtk_tree_store_new (
648 G_TYPE_STRING, /* COL_NAME */
649 G_TYPE_POINTER, /* COL_ADDR */
650 G_TYPE_LONG)); /* COL_Y */
651 gtk_tree_view_set_model (overview, model);
652 g_object_unref (model);
654 sel = gtk_tree_view_get_selection (overview);
655 gtk_tree_selection_set_mode (sel, GTK_SELECTION_MULTIPLE);
656 g_signal_connect (sel, "changed", G_CALLBACK (on_selection_change),
659 column = gtk_tree_view_column_new ();
660 gtk_tree_view_append_column (GTK_TREE_VIEW (overview), column);
661 renderer = gtk_cell_renderer_text_new ();
662 gtk_tree_view_column_pack_start (column, renderer, TRUE);
663 gtk_tree_view_column_add_attribute (column, renderer, "text", COL_NAME);
665 g_signal_connect (GTK_TREE_VIEW (overview),
666 "row-activated", G_CALLBACK (on_row_activate), view);
668 gtk_action_set_sensitive (copy_action, FALSE);
669 g_signal_connect_swapped (copy_action, "activate",
670 G_CALLBACK (on_copy), view);
671 g_signal_connect_swapped (select_all_action, "activate",
672 G_CALLBACK (on_select_all), view);
679 psppire_output_view_destroy (struct psppire_output_view *view)
686 g_signal_handlers_disconnect_by_func (view->output,
687 G_CALLBACK (on_style_updated), view);
689 string_map_destroy (&view->render_opts);
691 for (i = 0; i < view->n_items; i++)
692 output_item_unref (view->items[i].item);
695 view->n_items = view->allocated_items = 0;
697 if (view->print_settings != NULL)
698 g_object_unref (view->print_settings);
700 xr_driver_destroy (view->xr);
706 psppire_output_view_clear (struct psppire_output_view *view)
713 for (i = 0; i < view->n_items; i++)
715 gtk_container_remove (GTK_CONTAINER (view->output),
716 view->items[i].drawing_area);
717 output_item_unref (view->items[i].item);
721 view->n_items = view->allocated_items = 0;
727 psppire_output_view_export (struct psppire_output_view *view,
728 struct string_map *options)
730 struct output_driver *driver;
732 driver = output_driver_create (options);
737 for (i = 0; i < view->n_items; i++)
738 driver->class->submit (driver, view->items[i].item);
739 output_driver_destroy (driver);
746 get_cairo_context_from_print_context (GtkPrintContext *context)
748 cairo_t *cr = gtk_print_context_get_cairo_context (context);
751 For all platforms except windows, gtk_print_context_get_dpi_[xy] returns 72.
754 double xres = gtk_print_context_get_dpi_x (context);
755 double yres = gtk_print_context_get_dpi_y (context);
757 /* This means that the cairo context now has its dimensions in Points */
758 cairo_scale (cr, xres / 72.0, yres / 72.0);
765 create_xr_print_driver (GtkPrintContext *context, struct psppire_output_view *view)
767 struct string_map options;
768 GtkPageSetup *page_setup;
769 double width, height;
773 double bottom_margin;
775 page_setup = gtk_print_context_get_page_setup (context);
776 width = gtk_page_setup_get_paper_width (page_setup, GTK_UNIT_MM);
777 height = gtk_page_setup_get_paper_height (page_setup, GTK_UNIT_MM);
778 left_margin = gtk_page_setup_get_left_margin (page_setup, GTK_UNIT_MM);
779 right_margin = gtk_page_setup_get_right_margin (page_setup, GTK_UNIT_MM);
780 top_margin = gtk_page_setup_get_top_margin (page_setup, GTK_UNIT_MM);
781 bottom_margin = gtk_page_setup_get_bottom_margin (page_setup, GTK_UNIT_MM);
783 string_map_init (&options);
784 string_map_insert_nocopy (&options, xstrdup ("paper-size"),
785 c_xasprintf("%.2fx%.2fmm", width, height));
786 string_map_insert_nocopy (&options, xstrdup ("left-margin"),
787 c_xasprintf ("%.2fmm", left_margin));
788 string_map_insert_nocopy (&options, xstrdup ("right-margin"),
789 c_xasprintf ("%.2fmm", right_margin));
790 string_map_insert_nocopy (&options, xstrdup ("top-margin"),
791 c_xasprintf ("%.2fmm", top_margin));
792 string_map_insert_nocopy (&options, xstrdup ("bottom-margin"),
793 c_xasprintf ("%.2fmm", bottom_margin));
795 view->print_xrd = xr_driver_create (get_cairo_context_from_print_context (context), &options);
797 string_map_destroy (&options);
801 paginate (GtkPrintOperation *operation,
802 GtkPrintContext *context,
803 struct psppire_output_view *view)
807 /* Sometimes GTK+ emits this signal again even after pagination is
808 complete. Don't let that screw up printing. */
811 else if ( view->print_item < view->n_items )
813 xr_driver_output_item (view->print_xrd,
814 view->items[view->print_item++].item);
815 while (xr_driver_need_new_page (view->print_xrd))
817 xr_driver_next_page (view->print_xrd, get_cairo_context_from_print_context (context));
818 view->print_n_pages ++;
824 gtk_print_operation_set_n_pages (operation, view->print_n_pages);
826 /* Re-create the driver to do the real printing. */
827 xr_driver_destroy (view->print_xrd);
828 create_xr_print_driver (context, view);
829 view->print_item = 0;
830 view->paginated = TRUE;
837 begin_print (GtkPrintOperation *operation,
838 GtkPrintContext *context,
839 struct psppire_output_view *view)
841 create_xr_print_driver (context, view);
843 view->print_item = 0;
844 view->print_n_pages = 1;
845 view->paginated = FALSE;
849 end_print (GtkPrintOperation *operation,
850 GtkPrintContext *context,
851 struct psppire_output_view *view)
853 xr_driver_destroy (view->print_xrd);
858 draw_page (GtkPrintOperation *operation,
859 GtkPrintContext *context,
861 struct psppire_output_view *view)
863 xr_driver_next_page (view->print_xrd, get_cairo_context_from_print_context (context));
864 while (!xr_driver_need_new_page (view->print_xrd)
865 && view->print_item < view->n_items)
866 xr_driver_output_item (view->print_xrd, view->items [view->print_item++].item);
871 psppire_output_view_print (struct psppire_output_view *view,
872 GtkWindow *parent_window)
874 GtkPrintOperationResult res;
876 GtkPrintOperation *print = gtk_print_operation_new ();
878 if (view->print_settings != NULL)
879 gtk_print_operation_set_print_settings (print, view->print_settings);
881 g_signal_connect (print, "begin_print", G_CALLBACK (begin_print), view);
882 g_signal_connect (print, "end_print", G_CALLBACK (end_print), view);
883 g_signal_connect (print, "paginate", G_CALLBACK (paginate), view);
884 g_signal_connect (print, "draw_page", G_CALLBACK (draw_page), view);
886 res = gtk_print_operation_run (print, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
887 parent_window, NULL);
889 if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
891 if (view->print_settings != NULL)
892 g_object_unref (view->print_settings);
893 view->print_settings = g_object_ref (gtk_print_operation_get_print_settings (print));
896 g_object_unref (print);
899 struct psppire_output_view_driver
901 struct output_driver driver;
902 struct psppire_output_view *view;
905 static struct psppire_output_view_driver *
906 psppire_output_view_driver_cast (struct output_driver *driver)
908 return UP_CAST (driver, struct psppire_output_view_driver, driver);
912 psppire_output_view_submit (struct output_driver *this,
913 const struct output_item *item)
915 struct psppire_output_view_driver *povd = psppire_output_view_driver_cast (this);
917 if (is_table_item (item))
918 psppire_output_view_put (povd->view, item);
921 static struct output_driver_class psppire_output_view_driver_class =
923 "PSPPIRE Output View", /* name */
925 psppire_output_view_submit, /* submit */
930 psppire_output_view_register_driver (struct psppire_output_view *view)
932 struct psppire_output_view_driver *povd;
933 struct output_driver *d;
935 povd = xzalloc (sizeof *povd);
938 output_driver_init (d, &psppire_output_view_driver_class, "PSPPIRE Output View",
939 SETTINGS_DEVICE_UNFILTERED);
940 output_driver_register (d);