1 /* PSPPIRE - a graphical user interface for PSPP.
2 Copyright (C) 2008-2015, 2016 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"
21 #include <cairo/cairo-svg.h>
25 #include "libpspp/assertion.h"
26 #include "libpspp/string-map.h"
27 #include "output/cairo-fsm.h"
28 #include "output/cairo-pager.h"
29 #include "output/driver-provider.h"
30 #include "output/driver.h"
31 #include "output/output-item.h"
32 #include "output/pivot-table.h"
34 #include "gl/c-xvasprintf.h"
35 #include "gl/minmax.h"
36 #include "gl/clean-temp.h"
37 #include "gl/xalloc.h"
40 #define _(msgid) gettext (msgid)
42 struct output_view_item
44 struct output_item *item;
45 GtkWidget *drawing_area;
50 struct psppire_output_view
52 struct xr_fsm_style *style;
60 GtkTreeView *overview;
64 guint buttontime; /* Time of the button event */
66 struct output_view_item *items;
67 size_t n_items, allocated_items;
68 struct output_view_item *selected_item;
70 /* Variables pertaining to printing */
71 GtkPrintSettings *print_settings;
73 struct xr_fsm_style *fsm_style;
74 struct xr_page_style *page_style;
75 struct xr_pager *pager;
83 COL_LABEL, /* Output item label. */
84 COL_ADDR, /* Pointer to the table */
85 COL_Y, /* Y position of top of object. */
89 static GtkTargetList *build_target_list (const struct output_item *item);
90 static void clipboard_get_cb (GtkClipboard *clipboard,
91 GtkSelectionData *selection_data,
95 /* Draws a white background on the GtkLayout to match the white background of
96 each of the output items. */
98 layout_draw_callback (GtkWidget *widget, cairo_t *cr, gpointer data)
100 int width = gtk_widget_get_allocated_width (widget);
101 int height = gtk_widget_get_allocated_height (widget);
102 GtkStyleContext *context = gtk_widget_get_style_context (widget);
103 gtk_render_background (context, cr, 0, 0, width, height);
104 return FALSE; /* Continue drawing the GtkDrawingAreas. */
108 draw_callback (GtkWidget *widget, cairo_t *cr, gpointer data)
111 if (!gdk_cairo_get_clip_rectangle (cr, &clip))
114 struct xr_fsm *fsm = g_object_get_data (G_OBJECT (widget), "fsm");
116 /* Draw the background based on the state of the widget
117 which can be selected or not selected */
118 GtkStyleContext *context = gtk_widget_get_style_context (widget);
119 gtk_render_background (context, cr, clip.x, clip.y,
120 clip.x + clip.width, clip.y + clip.height);
121 /* Select the default foreground color based on current style
122 and state of the widget */
123 GtkStateFlags state = gtk_widget_get_state_flags (widget);
125 gtk_style_context_get_color (context, state, &color);
126 cairo_set_source_rgba (cr, color.red, color.green, color.blue, color.alpha);
127 xr_fsm_draw_region (fsm, cr, clip.x, clip.y, clip.width, clip.height);
133 free_fsm (gpointer fsm_)
135 struct xr_fsm *fsm = fsm_;
136 xr_fsm_destroy (fsm);
139 static struct xr_fsm_style *
140 get_xr_fsm_style (struct psppire_output_view *view)
142 GtkStyleContext *context
143 = gtk_widget_get_style_context (GTK_WIDGET (view->output));
144 GtkStateFlags state = gtk_widget_get_state_flags (GTK_WIDGET (view->output));
146 int xr_width = view->render_width * 1000;
148 PangoFontDescription *pf;
149 gtk_style_context_get (context, state, "font", &pf, NULL);
151 struct xr_fsm_style *style = xmalloc (sizeof *style);
152 *style = (struct xr_fsm_style) {
154 .size = { [TABLE_HORZ] = xr_width, [TABLE_VERT] = INT_MAX },
155 .min_break = { [TABLE_HORZ] = xr_width / 2, [TABLE_VERT] = 0 },
157 .use_system_colors = true,
158 .object_spacing = XR_POINT * 12,
159 .font_resolution = 96.0,
165 /* Return the horizontal position to place a widget whose
166 width is CHILD_WIDTH */
168 get_xpos (const struct psppire_output_view *view, gint child_width)
170 GdkWindow *gdkw = gtk_widget_get_window (GTK_WIDGET (view->output));
171 guint w = gdk_window_get_width (gdkw);
173 g_object_get (view->output, "border-width", &gutter, NULL);
174 return (gtk_widget_get_direction (GTK_WIDGET (view->output)) == GTK_TEXT_DIR_RTL) ? w - child_width - gutter: gutter;
177 static struct output_view_item *
178 find_selected_item (struct psppire_output_view *view)
180 struct output_view_item *item = NULL;
183 if (view->items == NULL)
186 for (item = view->items; item < &view->items[view->n_items]; item++)
188 GtkWidget *widget = GTK_WIDGET (item->drawing_area);
189 if (GTK_IS_WIDGET (widget))
191 GtkStateFlags state = gtk_widget_get_state_flags (widget);
192 if (state & GTK_STATE_FLAG_SELECTED)
201 set_copy_action (struct psppire_output_view *view,
204 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (view->output));
205 GAction *copy_action = g_action_map_lookup_action (G_ACTION_MAP (toplevel),
207 g_object_set (copy_action,
213 clear_selection (struct psppire_output_view *view)
217 struct output_view_item *item = find_selected_item (view);
220 set_copy_action (view, FALSE);
221 GtkWidget *widget = GTK_WIDGET (item->drawing_area);
222 if (GTK_IS_WIDGET (widget))
224 gtk_widget_unset_state_flags (widget, GTK_STATE_FLAG_SELECTED);
225 gtk_widget_queue_draw (widget);
230 off_item_button_press_event_cb (GtkWidget *widget,
231 GdkEventButton *event,
232 struct psppire_output_view *view)
234 /* buttontime is set by button_press_event_cb
235 If our event->time is equal to the time from the
236 button_press_event_cb, then we handle the same event.
237 In that case we must not clear the selection because
238 it was just set by button_press_event_cb from the item */
239 if (event->time != view->buttontime)
240 clear_selection (view);
241 return FALSE; /* Forward the event -> DragNDrop */
245 button_press_event_cb (GtkWidget *widget,
246 GdkEventButton *event,
247 struct psppire_output_view *view)
249 view->buttontime = event->time;
250 clear_selection (view);
251 set_copy_action (view, TRUE);
252 gtk_widget_set_state_flags (widget, GTK_STATE_FLAG_SELECTED, FALSE);
253 gtk_widget_queue_draw (widget);
254 return FALSE; /* Forward Event -> off_item will trigger */
258 drag_data_get_cb (GtkWidget *widget, GdkDragContext *context,
259 GtkSelectionData *selection_data,
260 guint target_type, guint time,
261 struct psppire_output_view *view)
263 view->selected_item = find_selected_item (view);
264 clipboard_get_cb (NULL, selection_data, target_type, view);
268 create_drawing_area (struct psppire_output_view *view,
269 GtkWidget *drawing_area, struct xr_fsm *r,
270 int tw, int th, const struct output_item *item)
272 g_object_set_data_full (G_OBJECT (drawing_area),
274 g_signal_connect (drawing_area, "button-press-event",
275 G_CALLBACK (button_press_event_cb), view);
276 gtk_widget_add_events (drawing_area, GDK_BUTTON_PRESS_MASK);
278 { /* Drag and Drop */
279 GtkTargetList *tl = build_target_list (item);
281 gtk_drag_source_set (drawing_area, GDK_BUTTON1_MASK, NULL, 0, GDK_ACTION_COPY);
282 gtk_drag_source_set_target_list (drawing_area, tl);
283 gtk_target_list_unref (tl);
284 g_signal_connect (drawing_area, "drag-data-get",
285 G_CALLBACK (drag_data_get_cb), view);
287 GtkStyleContext *context = gtk_widget_get_style_context (drawing_area);
288 gtk_style_context_add_class (context,
289 GTK_STYLE_CLASS_VIEW);
290 g_signal_connect (drawing_area, "draw",
291 G_CALLBACK (draw_callback), view);
293 gtk_widget_set_size_request (drawing_area, tw, th);
294 gint xpos = get_xpos (view, tw);
296 gtk_layout_put (view->output, drawing_area, xpos, view->y);
298 gtk_widget_show (drawing_area);
302 rerender (struct psppire_output_view *view)
304 struct output_view_item *item;
305 GdkWindow *gdkw = gtk_widget_get_window (GTK_WIDGET (view->output));
307 if (!view->n_items || ! gdkw)
311 view->style = get_xr_fsm_style (view);
313 GdkWindow *win = gtk_layout_get_bin_window (view->output);
314 cairo_region_t *region = gdk_window_get_visible_region (win);
315 GdkDrawingContext *ctx = gdk_window_begin_draw_frame (win, region);
316 cairo_t *cr = gdk_drawing_context_get_cairo_context (ctx);
320 for (item = view->items; item < &view->items[view->n_items]; item++)
327 view->y += view->object_spacing;
329 if (item->item->type == OUTPUT_ITEM_GROUP)
332 r = xr_fsm_create_for_scrolling (item->item, view->style, cr);
335 g_warn_if_reached ();
339 xr_fsm_measure (r, cr, &tw, &th);
341 gint xpos = get_xpos (view, tw);
343 if (!item->drawing_area)
345 item->drawing_area = gtk_drawing_area_new ();
346 create_drawing_area (view, item->drawing_area, r, tw, th, item->item);
350 g_object_set_data_full (G_OBJECT (item->drawing_area),
352 gtk_widget_set_size_request (item->drawing_area, tw, th);
353 gtk_layout_move (view->output, item->drawing_area, xpos, view->y);
356 if (item->item->type == OUTPUT_ITEM_TABLE)
357 gtk_widget_set_tooltip_text (item->drawing_area,
358 item->item->table->notes);
363 /* This code probably doesn't bring us anthing, but Gtk
364 shows warnings if get_preferred_width/height is not
365 called before the size_allocate below is called. */
366 gtk_widget_get_preferred_width (item->drawing_area, &minw, NULL);
367 gtk_widget_get_preferred_height (item->drawing_area, &minh, NULL);
368 if (th > minh) th = minh;
369 if (tw > minw) tw = minw;
376 gtk_widget_size_allocate (item->drawing_area, &alloc);
378 if (view->max_width < tw)
379 view->max_width = tw;
383 gtk_layout_set_size (view->output,
384 view->max_width + view->object_spacing,
385 view->y + view->object_spacing);
387 gdk_window_end_draw_frame (win, ctx);
388 cairo_region_destroy (region);
392 init_output_view_item (struct output_view_item *view_item,
393 struct psppire_output_view *view,
394 const struct output_item *item,
397 *view_item = (struct output_view_item) {
398 .item = output_item_ref (item),
399 .nesting_depth = nesting_depth
402 GdkWindow *win = gtk_widget_get_window (GTK_WIDGET (view->output));
403 if (win && item->type != OUTPUT_ITEM_GROUP)
406 view->style = get_xr_fsm_style (view);
408 cairo_region_t *region = gdk_window_get_visible_region (win);
409 GdkDrawingContext *ctx = gdk_window_begin_draw_frame (win, region);
410 cairo_t *cr = gdk_drawing_context_get_cairo_context (ctx);
413 view->y += view->object_spacing;
415 struct xr_fsm *r = xr_fsm_create_for_scrolling (item, view->style, cr);
418 gdk_window_end_draw_frame (win, ctx);
419 cairo_region_destroy (region);
421 output_item_unref (view_item->item);
425 xr_fsm_measure (r, cr, &view_item->width, &view_item->height);
426 view_item->drawing_area = gtk_drawing_area_new ();
427 create_drawing_area (view, view_item->drawing_area, r, view_item->width,
428 view_item->height, item);
429 gdk_window_end_draw_frame (win, ctx);
430 cairo_region_destroy (region);
437 psppire_output_view_put__ (struct psppire_output_view *view,
438 const struct output_item *item,
439 GtkTreePath *parent_path)
441 if (item->type == OUTPUT_ITEM_TEXT)
443 char *text = text_item_get_plain_text (item);
444 bool text_is_empty = text[0] == '\0';
450 if (view->n_items >= view->allocated_items)
451 view->items = x2nrealloc (view->items, &view->allocated_items,
452 sizeof *view->items);
453 struct output_view_item *view_item = &view->items[view->n_items];
454 if (!init_output_view_item (view_item, view, item,
455 parent_path ? gtk_tree_path_get_depth (parent_path) : 0))
459 GtkTreePath *path = NULL;
462 GtkTreeStore *store = GTK_TREE_STORE (
463 gtk_tree_view_get_model (view->overview));
465 /* Create a new node in the tree and puts a reference to it in 'iter'. */
469 && gtk_tree_path_get_depth (parent_path) > 0
470 && gtk_tree_model_get_iter (GTK_TREE_MODEL (store),
471 &parent, parent_path))
472 gtk_tree_store_append (store, &iter, &parent);
474 gtk_tree_store_append (store, &iter, NULL);
476 gtk_tree_store_set (store, &iter,
477 COL_LABEL, output_item_get_label (item),
482 /* Get the path of the new row. */
483 path = gtk_tree_model_get_path (
484 GTK_TREE_MODEL (store), &iter);
485 gtk_tree_view_expand_row (view->overview, path, TRUE);
488 if (view->max_width < view_item->width)
489 view->max_width = view_item->width;
490 view->y += view_item->height;
492 gtk_layout_set_size (view->output, view->max_width, view->y);
494 if (item->type == OUTPUT_ITEM_GROUP)
495 for (size_t i = 0; i < item->group.n_children; i++)
496 psppire_output_view_put__ (view, item->group.children[i], path);
498 gtk_tree_path_free (path);
502 psppire_output_view_put (struct psppire_output_view *view,
503 const struct output_item *item)
505 psppire_output_view_put__ (view, item, NULL);
509 on_row_activate (GtkTreeView *overview,
511 GtkTreeViewColumn *column,
512 struct psppire_output_view *view)
520 model = gtk_tree_view_get_model (overview);
521 if (!gtk_tree_model_get_iter (model, &iter, path))
524 gtk_tree_model_get_value (model, &iter, COL_Y, &value);
525 y = g_value_get_long (&value);
526 g_value_unset (&value);
528 vadj = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (view->output));
529 min = gtk_adjustment_get_lower (vadj);
530 max = gtk_adjustment_get_upper (vadj) - gtk_adjustment_get_page_size (vadj);
535 gtk_adjustment_set_value (vadj, y);
539 on_style_updated (GtkWidget *toplevel, struct psppire_output_view *view)
541 if (!view->n_items || !gtk_widget_get_window (GTK_WIDGET (view->output)))
544 /* GTK+ fires this signal for trivial changes like the mouse moving in or out
545 of the window. Check whether the actual fsm options changed and
546 re-render only if they did. */
547 struct xr_fsm_style *style = get_xr_fsm_style (view);
548 if (!view->style || !xr_fsm_style_equals (style, view->style))
550 xr_fsm_style_unref (view->style);
551 view->style = xr_fsm_style_ref (style);
554 xr_fsm_style_unref (style);
568 clear_rectangle (cairo_surface_t *surface,
569 double x0, double y0, double x1, double y1)
571 cairo_t *cr = cairo_create (surface);
572 cairo_set_source_rgb (cr, 1, 1, 1);
574 cairo_rectangle (cr, x0, y0, x1 - x0, y1 - y0);
580 clipboard_get_cb (GtkClipboard *clipboard,
581 GtkSelectionData *selection_data,
585 struct psppire_output_view *view = data;
589 struct output_driver *driver = NULL;
591 struct string_map options;
592 struct temp_dir *td = NULL;
594 if (view->selected_item == NULL)
597 td = create_temp_dir ("pspp", NULL, false);
600 msg_error (errno, _("failed to create temporary directory during clipboard operation"));
603 filename = xasprintf ("%s/clip.tmp", td->dir_name);
605 string_map_init (&options);
606 string_map_insert (&options, "output-file", filename);
610 case SELECT_FMT_UTF8:
611 string_map_insert (&options, "box", "unicode");
614 case SELECT_FMT_TEXT:
615 string_map_insert (&options, "format", "txt");
616 string_map_insert (&options, "width", "1000");
619 case SELECT_FMT_HTML:
620 string_map_insert (&options, "format", "html");
621 string_map_insert (&options, "borders", "false");
622 string_map_insert (&options, "css", "false");
631 string_map_insert (&options, "format", "odt");
635 g_warning ("unsupported clip target\n");
640 if ((info == SELECT_FMT_IMG) ||
641 (info == SELECT_FMT_SVG) )
643 GtkWidget *widget = view->selected_item->drawing_area;
644 struct xr_fsm *fsm = g_object_get_data (G_OBJECT (widget), "fsm");
646 GdkWindow *win = gtk_layout_get_bin_window (view->output);
647 cairo_region_t *region = gdk_window_get_visible_region (win);
648 GdkDrawingContext *ctx = gdk_window_begin_draw_frame (win, region);
649 cairo_t *cr = gdk_drawing_context_get_cairo_context (ctx);
652 xr_fsm_measure (fsm, cr, &w, &h);
654 gdk_window_end_draw_frame (win, ctx);
655 cairo_region_destroy (region);
657 cairo_surface_t *surface
658 = (info == SELECT_FMT_SVG
659 ? cairo_svg_surface_create (filename, w, h)
660 : cairo_image_surface_create (CAIRO_FORMAT_ARGB32, w, h));
661 clear_rectangle (surface, 0, 0, w, h);
662 cairo_t *cr2 = cairo_create (surface);
663 xr_fsm_draw_all (fsm, cr2);
665 if (info == SELECT_FMT_IMG)
667 GdkPixbuf *pixbuf = gdk_pixbuf_get_from_surface (surface,
671 gtk_selection_data_set_pixbuf (selection_data, pixbuf);
672 g_object_unref (pixbuf);
675 cairo_surface_destroy (surface);
679 driver = output_driver_create (&options);
683 driver->class->submit (driver, view->selected_item->item);
685 if (driver->class->flush)
686 driver->class->flush (driver);
688 /* Some drivers (eg: the odt one) don't write anything until they
690 output_driver_destroy (driver);
694 if (info != SELECT_FMT_IMG
695 && g_file_get_contents (filename, &text, &length, NULL))
696 gtk_selection_data_set (selection_data,
697 gtk_selection_data_get_target (selection_data),
698 8, (const guchar *) text, length);
703 output_driver_destroy (driver);
709 cleanup_temp_dir (td);
713 clipboard_clear_cb (GtkClipboard *clipboard,
719 CT ( ctn1, "STRING", 0, SELECT_FMT_TEXT ) \
720 CT ( ctn2, "TEXT", 0, SELECT_FMT_TEXT ) \
721 CT ( ctn3, "COMPOUND_TEXT", 0, SELECT_FMT_TEXT ) \
722 CT ( ctn4, "text/plain", 0, SELECT_FMT_TEXT ) \
723 CT ( ctn5, "UTF8_STRING", 0, SELECT_FMT_UTF8 ) \
724 CT ( ctn6, "text/plain;charset=utf-8", 0, SELECT_FMT_UTF8 ) \
725 CT ( ctn7, "text/html", 0, SELECT_FMT_HTML ) \
726 CT ( ctn8, "image/svg+xml", 0, SELECT_FMT_SVG )
728 #define CT(ID, TARGET, FLAGS, INFO) static gchar ID[] = TARGET;
731 static gchar ctnlast[] = "application/vnd.oasis.opendocument.text";
733 static const GtkTargetEntry targets[] = {
734 #define CT(ID, TARGET, FLAGS, INFO) { ID, FLAGS, INFO },
737 { ctnlast, 0, SELECT_FMT_ODT }
740 static GtkTargetList *
741 build_target_list (const struct output_item *item)
743 GtkTargetList *tl = gtk_target_list_new (targets, G_N_ELEMENTS (targets));
744 g_return_val_if_fail (tl, NULL);
745 if (item->type == OUTPUT_ITEM_TABLE || item->type == OUTPUT_ITEM_CHART)
746 gtk_target_list_add_image_targets (tl, SELECT_FMT_IMG, TRUE);
751 on_copy (struct psppire_output_view *view)
753 GtkWidget *widget = GTK_WIDGET (view->overview);
754 GtkClipboard *cb = gtk_widget_get_clipboard (widget, GDK_SELECTION_CLIPBOARD);
756 struct output_view_item *ov_item = find_selected_item (view);
759 view->selected_item = ov_item;
760 GtkTargetList *tl = build_target_list (ov_item->item);
761 g_return_if_fail (tl);
762 gint no_of_targets = 0;
763 GtkTargetEntry *ta = gtk_target_table_new_from_list (tl, &no_of_targets);
764 g_return_if_fail (ta);
765 if (!gtk_clipboard_set_with_data (cb, ta, no_of_targets,
766 clipboard_get_cb, clipboard_clear_cb,
768 clipboard_clear_cb (cb, view);
770 gtk_target_list_unref (tl);
771 gtk_target_table_free (ta,no_of_targets);
775 on_size_allocate (GtkWidget *widget,
776 GdkRectangle *allocation,
777 struct psppire_output_view *view)
779 view->render_width = MAX (300, allocation->width);
784 on_realize (GtkWidget *overview, GObject *view)
786 GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (overview));
788 GAction *copy_action = g_action_map_lookup_action (G_ACTION_MAP (toplevel),
791 GAction *select_all_action = g_action_map_lookup_action (G_ACTION_MAP (toplevel),
794 g_object_set (copy_action, "enabled", FALSE, NULL);
795 g_object_set (select_all_action, "enabled", FALSE, NULL);
797 g_signal_connect_swapped (copy_action, "activate",
798 G_CALLBACK (on_copy), view);
802 struct psppire_output_view *
803 psppire_output_view_new (GtkLayout *output, GtkTreeView *overview)
805 struct psppire_output_view *view;
807 view = xmalloc (sizeof *view);
808 *view = (struct psppire_output_view) {
809 .object_spacing = 10,
811 .overview = overview,
812 .toplevel = gtk_widget_get_toplevel (GTK_WIDGET (output)),
815 g_signal_connect (output, "draw", G_CALLBACK (layout_draw_callback), NULL);
817 g_signal_connect (output, "style-updated", G_CALLBACK (on_style_updated), view);
819 g_signal_connect (output, "size-allocate", G_CALLBACK (on_size_allocate), view);
821 gtk_widget_add_events (GTK_WIDGET (output), GDK_BUTTON_PRESS_MASK);
822 g_signal_connect (output, "button-press-event",
823 G_CALLBACK (off_item_button_press_event_cb), view);
825 gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (output)),
826 GTK_STYLE_CLASS_VIEW);
830 g_signal_connect (overview, "realize", G_CALLBACK (on_realize), view);
832 GtkTreeModel *model = GTK_TREE_MODEL (gtk_tree_store_new (
834 G_TYPE_STRING, /* COL_LABEL */
835 G_TYPE_POINTER, /* COL_ADDR */
836 G_TYPE_LONG)); /* COL_Y */
837 gtk_tree_view_set_model (overview, model);
838 g_object_unref (model);
840 GtkTreeViewColumn *column = gtk_tree_view_column_new ();
841 gtk_tree_view_append_column (GTK_TREE_VIEW (overview), column);
842 GtkCellRenderer * renderer = gtk_cell_renderer_text_new ();
843 gtk_tree_view_column_pack_start (column, renderer, TRUE);
844 gtk_tree_view_column_add_attribute (column, renderer, "text", COL_LABEL);
846 g_signal_connect (GTK_TREE_VIEW (overview),
847 "row-activated", G_CALLBACK (on_row_activate), view);
854 psppire_output_view_destroy (struct psppire_output_view *view)
861 g_signal_handlers_disconnect_by_func (view->output,
862 G_CALLBACK (on_style_updated), view);
864 xr_fsm_style_unref (view->style);
866 for (i = 0; i < view->n_items; i++)
867 output_item_unref (view->items[i].item);
870 view->n_items = view->allocated_items = 0;
872 if (view->print_settings != NULL)
873 g_object_unref (view->print_settings);
881 psppire_output_view_export__ (struct output_driver *driver,
882 const struct output_item *item)
884 if (item->type == OUTPUT_ITEM_GROUP && !driver->class->handles_groups)
886 for (size_t i = 0; i < item->group.n_children; i++)
887 psppire_output_view_export__ (driver, item->group.children[i]);
890 driver->class->submit (driver, item);
894 psppire_output_view_export (struct psppire_output_view *view,
895 struct string_map *options)
897 struct output_driver *driver;
899 driver = output_driver_create (options);
904 for (i = 0; i < view->n_items; i++)
905 if (view->items[i].nesting_depth == 0)
906 psppire_output_view_export__ (driver, view->items[i].item);
907 output_driver_destroy (driver);
914 get_cairo_context_from_print_context (GtkPrintContext *context)
916 cairo_t *cr = gtk_print_context_get_cairo_context (context);
917 return cairo_reference (cr);
921 create_xr_print_driver (GtkPrintContext *context, struct psppire_output_view *view)
923 GtkPageSetup *ps = gtk_print_context_get_page_setup (context);
925 enum { H = TABLE_HORZ, V = TABLE_VERT };
926 int paper[TABLE_N_AXES] = {
927 [H] = gtk_page_setup_get_paper_width (ps, GTK_UNIT_POINTS) * XR_POINT,
928 [V] = gtk_page_setup_get_paper_height (ps, GTK_UNIT_POINTS) * XR_POINT,
931 /* These are all 1/2 inch. The "margins" that GTK+ gives us are useless:
932 they are the printer's imagable area. */
933 int margins[TABLE_N_AXES][2] = {
934 [H][0] = XR_POINT * 36,
935 [H][1] = XR_POINT * 36,
936 [V][0] = XR_POINT * 36,
937 [V][1] = XR_POINT * 36,
940 double size[TABLE_N_AXES];
941 for (int a = 0; a < TABLE_N_AXES; a++)
942 size[a] = paper[a] - margins[a][0] - margins[a][1];
944 view->page_style = xmalloc (sizeof *view->page_style);
945 *view->page_style = (struct xr_page_style) {
949 [H] = { margins[H][0], margins[H][1] },
950 [V] = { margins[V][0], margins[V][1] },
952 .initial_page_number = 1,
955 view->fsm_style = xmalloc (sizeof *view->fsm_style);
956 *view->fsm_style = (struct xr_fsm_style) {
959 .size = { [H] = size[H], [V] = size[V] },
960 .min_break = { [H] = size[H] / 2, [V] = size[V] / 2 },
961 .font = pango_font_description_from_string ("Sans Serif 10"),
962 .fg = CELL_COLOR_BLACK,
963 .use_system_colors = false,
964 .object_spacing = 12 * XR_POINT,
965 .font_resolution = 72.0
968 view->pager = xr_pager_create (view->page_style, view->fsm_style);
972 paginate (GtkPrintOperation *operation,
973 GtkPrintContext *context,
974 struct psppire_output_view *view)
978 /* Sometimes GTK+ emits this signal again even after pagination is
979 complete. Don't let that screw up printing. */
983 while (view->print_item < view->n_items)
985 const struct output_view_item *item = &view->items[view->print_item++];
986 if (item->nesting_depth == 0)
988 xr_pager_add_item (view->pager, item->item);
989 while (xr_pager_needs_new_page (view->pager))
991 xr_pager_add_page (view->pager,
992 get_cairo_context_from_print_context (context));
993 view->print_n_pages ++;
999 gtk_print_operation_set_n_pages (operation, MAX (1, view->print_n_pages));
1001 /* Re-create the driver to do the real printing. */
1002 xr_pager_destroy (view->pager);
1003 view->pager = xr_pager_create (view->page_style, view->fsm_style);
1004 view->print_item = 0;
1005 view->paginated = TRUE;
1011 begin_print (GtkPrintOperation *operation,
1012 GtkPrintContext *context,
1013 struct psppire_output_view *view)
1015 create_xr_print_driver (context, view);
1017 view->print_item = 0;
1018 view->print_n_pages = 0;
1019 view->paginated = FALSE;
1023 end_print (GtkPrintOperation *operation,
1024 GtkPrintContext *context,
1025 struct psppire_output_view *view)
1027 xr_pager_destroy (view->pager);
1033 draw_page (GtkPrintOperation *operation,
1034 GtkPrintContext *context,
1036 struct psppire_output_view *view)
1038 xr_pager_add_page (view->pager,
1039 get_cairo_context_from_print_context (context));
1040 while (!xr_pager_needs_new_page (view->pager)
1041 && view->print_item < view->n_items)
1043 const struct output_view_item *item = &view->items [view->print_item++];
1044 if (item->nesting_depth == 0)
1045 xr_pager_add_item (view->pager, item->item);
1051 psppire_output_view_print (struct psppire_output_view *view,
1052 GtkWindow *parent_window)
1054 GtkPrintOperationResult res;
1056 GtkPrintOperation *print = gtk_print_operation_new ();
1058 if (view->print_settings != NULL)
1059 gtk_print_operation_set_print_settings (print, view->print_settings);
1061 gtk_print_operation_set_use_full_page (print, TRUE);
1062 gtk_print_operation_set_unit (print, GTK_UNIT_POINTS);
1064 g_signal_connect (print, "begin_print", G_CALLBACK (begin_print), view);
1065 g_signal_connect (print, "end_print", G_CALLBACK (end_print), view);
1066 g_signal_connect (print, "paginate", G_CALLBACK (paginate), view);
1067 g_signal_connect (print, "draw_page", G_CALLBACK (draw_page), view);
1069 res = gtk_print_operation_run (print, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
1070 parent_window, NULL);
1072 if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
1074 if (view->print_settings != NULL)
1075 g_object_unref (view->print_settings);
1076 view->print_settings = g_object_ref (gtk_print_operation_get_print_settings (print));
1079 g_object_unref (print);