1 /* Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
2 * Copyright (C) 2007-2009 Holger Berndt <hb@claws-mail.org>,
3 * Colin Leroy <colin@colino.net>, and the Claws Mail team
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include "image_viewer.h"
27 #if GTK_CHECK_VERSION(2,10,0) && !defined(USE_GNOMEPRINT)
31 #include "prefs_common.h"
33 #include <glib/gi18n.h>
34 #include <gdk/gdkkeysyms.h>
36 #include <pango/pango.h>
41 PrintRenderer *renderer;
42 gpointer renderer_data;
44 PangoContext *pango_context;
57 GtkPrintOperation *op;
58 GtkPrintOperationPreview *preview;
60 GtkWidget *scrolled_window;
62 PrintData *print_data;
63 GtkWidget *page_nr_label;
64 GList *pages_to_print;
81 static void printing_textview_cb_begin_print(GtkPrintOperation*, GtkPrintContext*, gpointer);
82 static void printing_textview_cb_draw_page(GtkPrintOperation*, GtkPrintContext*, gint,
84 static gboolean cb_preview(GtkPrintOperation*, GtkPrintOperationPreview*,
85 GtkPrintContext*, GtkWindow*, gpointer);
86 static void cb_preview_destroy(GtkWindow*, gpointer);
87 static gboolean cb_preview_close(GtkWidget*, GdkEventAny*, gpointer);
88 static void cb_preview_size_allocate(GtkWidget*, GtkAllocation*);
89 static void cb_preview_ready(GtkPrintOperationPreview*,
90 GtkPrintContext*, gpointer);
91 static gboolean cb_preview_expose(GtkWidget*, GdkEventExpose*, gpointer);
92 static void cb_preview_got_page_size(GtkPrintOperationPreview*,
94 GtkPageSetup*, gpointer);
95 static void cb_preview_go_first(GtkButton*, gpointer);
96 static void cb_preview_go_previous(GtkButton*, gpointer);
97 static void cb_preview_go_next(GtkButton*, gpointer);
98 static void cb_preview_go_last(GtkButton*, gpointer);
99 static void cb_preview_btn_close(GtkButton*, gpointer);
100 static void cb_preview_zoom_100(GtkButton*, gpointer);
101 static void cb_preview_zoom_fit(GtkButton*, gpointer);
102 static void cb_preview_zoom_in(GtkButton*, gpointer);
103 static void cb_preview_zoom_out(GtkButton*, gpointer);
104 static void cb_preview_request_page_setup(GtkPrintOperation*,
106 gint,GtkPageSetup*,gpointer);
108 static void printing_preview_update_zoom_sensitivity(PreviewData*);
111 static GtkPrintSettings *settings = NULL;
112 static GtkPageSetup *page_setup = NULL;
114 /* other static functions */
115 static void printing_layout_set_text_attributes(PrintData*, GtkPrintContext *);
116 static gboolean printing_is_pango_gdk_color_equal(PangoColor*, GdkColor*);
117 static gint printing_text_iter_get_offset_bytes(PrintData *, const GtkTextIter*);
119 #define PREVIEW_SCALE 72
120 #define PREVIEW_SHADOW_OFFSET 3
121 #define PREVIEW_ZOOM_FAC 1.41
122 #define PREVIEW_ZOOM_MAX 10.
123 #define PREVIEW_ZOOM_MIN 0.2
125 static void free_pixbuf(gpointer key, gpointer value, gpointer data)
127 PangoAttrShape *attr = (PangoAttrShape *) value;
128 g_object_unref(G_OBJECT(attr->data));
131 gpointer printing_get_renderer_data(PrintData *print_data)
135 return print_data->renderer_data;
138 gdouble printing_get_zoom(PrintData *print_data)
142 return print_data->zoom;
145 void printing_set_n_pages(PrintData *print_data, gint n_pages)
149 print_data->npages = n_pages;
152 GtkPrintSettings *printing_get_settings(void)
154 if (settings == NULL) {
155 settings = gtk_print_settings_new();
156 gtk_print_settings_set_use_color(settings, prefs_common.print_use_color);
157 gtk_print_settings_set_collate(settings, prefs_common.print_use_collate);
158 gtk_print_settings_set_reverse(settings, prefs_common.print_use_reverse);
159 gtk_print_settings_set_duplex(settings, prefs_common.print_use_duplex);
164 void printing_store_settings(GtkPrintSettings *new_settings)
167 g_object_unref(settings);
168 settings = g_object_ref(new_settings);
169 prefs_common.print_use_color = gtk_print_settings_get_use_color(settings);
170 prefs_common.print_use_collate = gtk_print_settings_get_collate(settings);
171 prefs_common.print_use_reverse = gtk_print_settings_get_reverse(settings);
172 prefs_common.print_use_duplex = gtk_print_settings_get_duplex(settings);
175 GtkPageSetup *printing_get_page_setup(void)
177 if (page_setup == NULL) {
178 page_setup = gtk_page_setup_new();
179 if (prefs_common.print_paper_type && *prefs_common.print_paper_type) {
180 GtkPaperSize *paper = gtk_paper_size_new(prefs_common.print_paper_type);
181 gtk_page_setup_set_paper_size(page_setup, paper);
182 gtk_paper_size_free(paper);
184 gtk_page_setup_set_orientation(page_setup, prefs_common.print_paper_orientation);
189 void printing_print_full(GtkWindow *parent, PrintRenderer *renderer, gpointer renderer_data,
190 gint sel_start, gint sel_end)
192 GtkPrintOperation *op;
193 GtkPrintOperationResult res;
194 PrintData *print_data;
196 op = gtk_print_operation_new();
198 print_data = g_new0(PrintData,1);
200 print_data->renderer = renderer;
201 print_data->renderer_data = renderer_data;
202 print_data->sel_start = sel_start;
203 print_data->sel_end = sel_end;
205 print_data->zoom = 1.;
207 print_data->images = g_hash_table_new(g_direct_hash, g_direct_equal);
209 print_data->pango_context = renderer->get_pango_context(renderer_data);
211 print_data->to_print = renderer->get_data_to_print(renderer_data, sel_start, sel_end);
213 printing_get_settings();
214 printing_get_page_setup();
216 /* Config for printing */
217 gtk_print_operation_set_print_settings(op, settings);
218 gtk_print_operation_set_default_page_setup(op, page_setup);
221 g_signal_connect(op, "begin_print", G_CALLBACK(renderer->cb_begin_print), print_data);
222 g_signal_connect(op, "draw_page", G_CALLBACK(renderer->cb_draw_page), print_data);
223 g_signal_connect(op, "preview", G_CALLBACK(cb_preview), print_data);
225 /* Start printing process */
226 res = gtk_print_operation_run(op, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
229 if(res == GTK_PRINT_OPERATION_RESULT_ERROR) {
230 GError *error = NULL;
231 gtk_print_operation_get_error(op, &error);
232 debug_print("Error printing message: %s\n",
233 error ? error->message : "no details");
235 else if(res == GTK_PRINT_OPERATION_RESULT_APPLY) {
236 /* store settings for next printing session */
237 printing_store_settings(gtk_print_operation_get_print_settings(op));
240 g_hash_table_foreach(print_data->images, free_pixbuf, NULL);
241 g_hash_table_destroy(print_data->images);
242 if(print_data->to_print)
243 g_free(print_data->to_print);
244 g_list_free(print_data->page_breaks);
245 if(print_data->layout)
246 g_object_unref(print_data->layout);
251 debug_print("printing_print finished\n");
254 static PangoContext *printing_textview_get_pango_context(gpointer data)
256 return gtk_widget_get_pango_context(GTK_WIDGET(data));
259 static gpointer printing_textview_get_data_to_print(gpointer data, gint sel_start, gint sel_end)
261 GtkTextView *text_view = GTK_TEXT_VIEW(data);
262 GtkTextBuffer *buffer = gtk_text_view_get_buffer(text_view);
263 GtkTextIter start, end;
265 if (sel_start < 0 || sel_end <= sel_start) {
266 gtk_text_buffer_get_start_iter(buffer, &start);
267 gtk_text_buffer_get_end_iter(buffer, &end);
269 gtk_text_buffer_get_iter_at_offset(buffer, &start, sel_start);
270 gtk_text_buffer_get_iter_at_offset(buffer, &end, sel_end);
273 return gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
276 void printing_print(GtkTextView *text_view, GtkWindow *parent, gint sel_start, gint sel_end)
278 PrintRenderer *textview_renderer = g_new0(PrintRenderer, 1);
280 textview_renderer->get_pango_context = printing_textview_get_pango_context;
281 textview_renderer->get_data_to_print = printing_textview_get_data_to_print;
282 textview_renderer->cb_begin_print = printing_textview_cb_begin_print;
283 textview_renderer->cb_draw_page = printing_textview_cb_draw_page;
285 printing_print_full(parent, textview_renderer, text_view, sel_start, sel_end);
287 g_free(textview_renderer);
290 void printing_page_setup(GtkWindow *parent)
292 GtkPageSetup *new_page_setup;
294 printing_get_settings();
295 printing_get_page_setup();
297 new_page_setup = gtk_print_run_page_setup_dialog(parent,page_setup,settings);
300 g_object_unref(page_setup);
302 page_setup = new_page_setup;
304 g_free(prefs_common.print_paper_type);
305 prefs_common.print_paper_type = g_strdup(gtk_paper_size_get_name(
306 gtk_page_setup_get_paper_size(page_setup)));
307 prefs_common.print_paper_orientation = gtk_page_setup_get_orientation(page_setup);
310 static gboolean cb_preview(GtkPrintOperation *operation,
311 GtkPrintOperationPreview *preview,
312 GtkPrintContext *context,
316 PrintData *print_data;
318 PreviewData *preview_data;
324 GtkToolItem *separator;
325 static GdkGeometry geometry;
326 GtkWidget *dialog = NULL;
327 GtkWidget *statusbar = gtk_hbox_new(2, FALSE);
330 debug_print("Creating internal print preview\n");
332 print_data = (PrintData*) data;
334 preview_data = g_new0(PreviewData,1);
335 preview_data->print_data = print_data;
336 preview_data->op = g_object_ref(operation);
337 preview_data->preview = preview;
340 dialog = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "print_preview");
341 preview_data->dialog = dialog;
342 if(!geometry.min_height) {
343 geometry.min_width = 600;
344 geometry.min_height = 400;
346 gtk_window_set_geometry_hints(GTK_WINDOW(dialog), NULL, &geometry,
348 gtk_widget_set_size_request(dialog, prefs_common.print_previewwin_width,
349 prefs_common.print_previewwin_height);
350 gtk_window_set_title(GTK_WINDOW(dialog), _("Print preview"));
353 vbox = gtk_vbox_new(FALSE, 0);
354 gtk_container_add(GTK_CONTAINER(dialog), vbox);
357 toolbar = gtk_toolbar_new();
358 gtk_toolbar_set_orientation(GTK_TOOLBAR(toolbar), GTK_ORIENTATION_HORIZONTAL);
359 switch (prefs_common.toolbar_style) {
361 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_ICONS);
364 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_TEXT);
366 case TOOLBAR_BOTH_HORIZ:
367 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_BOTH_HORIZ);
371 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_BOTH);
373 gtk_toolbar_set_show_arrow(GTK_TOOLBAR(toolbar), TRUE);
375 gtk_box_pack_start(GTK_BOX(vbox), toolbar, FALSE, FALSE, 0);
377 #if !(GTK_CHECK_VERSION(2,12,0))
378 #define CLAWS_SET_TOOL_ITEM_TIP(widget,tip) { \
379 gtk_tool_item_set_tooltip(GTK_TOOL_ITEM(widget), GTK_TOOLTIPS(tips), \
383 #define CLAWS_SET_TOOL_ITEM_TIP(widget,tip) { \
384 gtk_tool_item_set_tooltip_text(GTK_TOOL_ITEM(widget), tip); \
388 #define TOOLBAR_ITEM(item,text,tooltip,cb,cbdata) { \
389 item = GTK_WIDGET(gtk_tool_button_new_from_stock(text)); \
390 gtk_tool_item_set_homogeneous(GTK_TOOL_ITEM(item), FALSE); \
391 gtk_tool_item_set_is_important(GTK_TOOL_ITEM(item), TRUE); \
392 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(item), -1); \
393 g_signal_connect (G_OBJECT(item), "clicked", G_CALLBACK(cb), cbdata); \
394 CLAWS_SET_TOOL_ITEM_TIP(GTK_TOOL_ITEM(item), \
398 TOOLBAR_ITEM(preview_data->first, GTK_STOCK_GOTO_FIRST, _("First page"), cb_preview_go_first, preview_data);
399 TOOLBAR_ITEM(preview_data->previous, GTK_STOCK_GO_BACK, _("Previous page"), cb_preview_go_previous, preview_data);
401 page = gtk_label_new("");
402 gtk_widget_set_size_request(page, 100, -1);
403 preview_data->page_nr_label = page;
405 TOOLBAR_ITEM(preview_data->next, GTK_STOCK_GO_FORWARD, _("Next page"), cb_preview_go_next, preview_data);
406 TOOLBAR_ITEM(preview_data->last, GTK_STOCK_GOTO_LAST, _("Last page"), cb_preview_go_last, preview_data);
408 separator = gtk_separator_tool_item_new();
409 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(separator), -1);
411 TOOLBAR_ITEM(preview_data->zoom_100, GTK_STOCK_ZOOM_100, _("Zoom 100%"), cb_preview_zoom_100, preview_data);
412 TOOLBAR_ITEM(preview_data->zoom_fit, GTK_STOCK_ZOOM_FIT, _("Zoom fit"), cb_preview_zoom_fit, preview_data);
413 TOOLBAR_ITEM(preview_data->zoom_in, GTK_STOCK_ZOOM_IN, _("Zoom in"), cb_preview_zoom_in, preview_data);
414 TOOLBAR_ITEM(preview_data->zoom_out, GTK_STOCK_ZOOM_OUT, _("Zoom out"), cb_preview_zoom_out, preview_data);
416 separator = gtk_separator_tool_item_new();
417 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(separator), -1);
419 /* tooltip has to be NULL else it triggers an expose_event */
420 TOOLBAR_ITEM(preview_data->close, GTK_STOCK_CLOSE, NULL, cb_preview_btn_close, preview_data);
422 gtk_widget_show(statusbar);
423 gtk_box_pack_start(GTK_BOX(vbox), statusbar, FALSE, FALSE, 0);
424 gtk_box_pack_start(GTK_BOX(statusbar), page, FALSE, FALSE, 0);
426 sw = gtk_scrolled_window_new(NULL, NULL);
427 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw),
428 GTK_POLICY_AUTOMATIC,
429 GTK_POLICY_AUTOMATIC);
430 gtk_box_pack_start(GTK_BOX(vbox), sw, TRUE, TRUE, 0);
431 da = gtk_drawing_area_new();
432 gtk_widget_set_double_buffered(da, FALSE);
433 gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(sw),
435 gtk_widget_realize(da);
436 preview_data->scrolled_window = sw;
437 preview_data->area = da;
440 cr = gdk_cairo_create(da->window);
441 gtk_print_context_set_cairo_context(context, cr, PREVIEW_SCALE, PREVIEW_SCALE);
445 g_signal_connect(dialog, "key_press_event",
446 G_CALLBACK(cb_preview_close), preview_data);
447 g_signal_connect(dialog, "size_allocate",
448 G_CALLBACK(cb_preview_size_allocate), NULL);
449 g_signal_connect(dialog, "destroy",G_CALLBACK(cb_preview_destroy),
451 g_signal_connect(preview, "ready", G_CALLBACK(cb_preview_ready),
453 g_signal_connect(preview, "got-page-size",
454 G_CALLBACK(cb_preview_got_page_size), preview_data);
456 g_signal_connect(operation, "request-page-setup",
457 G_CALLBACK(cb_preview_request_page_setup), preview_data);
459 gtk_widget_show_all(dialog);
463 static void cb_preview_destroy(GtkWindow *window, gpointer data)
465 PreviewData *preview_data;
466 preview_data = (PreviewData*) data;
468 if (preview_data->rendering)
470 debug_print("Preview window destroyed\n");
472 gtk_print_operation_preview_end_preview(preview_data->preview);
473 g_object_unref(preview_data->op);
474 g_list_free(preview_data->pages_to_print);
476 g_free(preview_data);
479 static gboolean cb_preview_close(GtkWidget *widget, GdkEventAny *event,
482 PreviewData *preview_data = (PreviewData *)data;
483 if(event->type == GDK_KEY_PRESS)
484 if(((GdkEventKey *)event)->keyval != GDK_Escape)
486 if (preview_data->rendering)
488 gtk_widget_destroy(widget);
492 static void cb_preview_size_allocate(GtkWidget *widget,
493 GtkAllocation *allocation)
495 g_return_if_fail(allocation != NULL);
497 prefs_common.print_previewwin_width = allocation->width;
498 prefs_common.print_previewwin_height = allocation->height;
501 static void cb_preview_ready(GtkPrintOperationPreview *preview,
502 GtkPrintContext *context,
505 PreviewData *preview_data;
507 preview_data = (PreviewData*) data;
508 debug_print("preview_ready %d\n", preview_data->print_data->npages);
510 for(iPage = 0; iPage < (preview_data->print_data->npages); iPage++) {
511 if(gtk_print_operation_preview_is_selected(preview_data->preview, iPage)) {
512 preview_data->pages_to_print =
513 g_list_prepend(preview_data->pages_to_print, GINT_TO_POINTER(iPage));
514 debug_print("want to print page %d\n",iPage+1);
518 preview_data->pages_to_print = g_list_reverse(preview_data->pages_to_print);
519 preview_data->current_page = preview_data->pages_to_print;
521 g_signal_connect(preview_data->area, "expose_event",
522 G_CALLBACK(cb_preview_expose),
525 gtk_widget_queue_draw(preview_data->area);
528 static void cb_preview_got_page_size(GtkPrintOperationPreview *preview,
529 GtkPrintContext *context,
530 GtkPageSetup *page_setup,
533 PreviewData *preview_data;
534 GtkPageOrientation orientation;
535 GtkPaperSize *paper_size;
539 preview_data = (PreviewData*) data;
540 debug_print("got_page_size\n");
541 orientation = gtk_page_setup_get_orientation(page_setup);
542 paper_size = gtk_page_setup_get_paper_size(page_setup);
543 paper_width = (gint)(gtk_paper_size_get_width(paper_size, GTK_UNIT_INCH)
545 paper_height = (gint)(gtk_paper_size_get_height(paper_size, GTK_UNIT_INCH)
548 preview_data->page_width = paper_width;
549 preview_data->page_height = paper_height;
551 debug_print("w/h %d/%d\n", paper_width, paper_height);
552 gtk_widget_set_size_request(GTK_WIDGET(preview_data->area),
553 paper_width, paper_height);
556 static gboolean cb_preview_expose(GtkWidget *widget, GdkEventExpose *event,
559 PreviewData *preview_data = data;
565 debug_print("preview_expose (current %p)\n", preview_data->current_page);
566 gdk_window_clear(preview_data->area->window);
578 gc = gdk_gc_new(GDK_DRAWABLE(preview_data->area->window));
581 gdk_gc_set_rgb_fg_color(gc, &gray);
582 gdk_draw_rectangle(preview_data->area->window, gc, TRUE, 0, 0,
583 preview_data->area->allocation.width,
584 preview_data->area->allocation.height);
587 gdk_gc_set_rgb_fg_color(gc, &black);
588 gdk_draw_rectangle(preview_data->area->window, gc, TRUE,
589 PREVIEW_SHADOW_OFFSET, PREVIEW_SHADOW_OFFSET,
590 preview_data->page_width+PREVIEW_SHADOW_OFFSET,
591 preview_data->page_height+PREVIEW_SHADOW_OFFSET);
594 gdk_gc_set_rgb_fg_color(gc, &white);
595 gdk_draw_rectangle(preview_data->area->window, gc, TRUE, 0, 0,
596 preview_data->page_width,
597 preview_data->page_height);
601 if(preview_data->current_page) {
602 preview_data->rendering = TRUE;
603 gtk_widget_set_sensitive(preview_data->close, FALSE);
604 int cur = GPOINTER_TO_INT(preview_data->current_page->data);
606 str = g_strdup_printf(_("Page %d"), cur+1);
607 gtk_label_set_text(GTK_LABEL(preview_data->page_nr_label), str);
609 gtk_print_operation_preview_render_page(preview_data->preview,
611 (preview_data->current_page->data));
613 gtk_widget_set_sensitive(preview_data->first, preview_data->current_page->prev != NULL);
614 gtk_widget_set_sensitive(preview_data->previous, preview_data->current_page->prev != NULL);
615 gtk_widget_set_sensitive(preview_data->next, preview_data->current_page->next != NULL);
616 gtk_widget_set_sensitive(preview_data->last, preview_data->current_page->next != NULL);
617 gtk_widget_set_sensitive(preview_data->close, TRUE);
618 preview_data->rendering = FALSE;
624 static void cb_preview_go_first(GtkButton *button, gpointer data)
626 PreviewData *preview_data = (PreviewData*) data;
627 preview_data->current_page = preview_data->pages_to_print;
628 gtk_widget_queue_draw(preview_data->area);
631 static void cb_preview_go_previous(GtkButton *button, gpointer data)
634 PreviewData *preview_data = (PreviewData*) data;
635 next = g_list_previous(preview_data->current_page);
637 preview_data->current_page = next;
638 gtk_widget_queue_draw(preview_data->area);
641 static void cb_preview_go_next(GtkButton *button, gpointer data)
644 PreviewData *preview_data = (PreviewData*) data;
645 next = g_list_next(preview_data->current_page);
647 preview_data->current_page = next;
648 gtk_widget_queue_draw(preview_data->area);
651 static void cb_preview_go_last(GtkButton *button, gpointer data)
653 PreviewData *preview_data = (PreviewData*) data;
654 preview_data->current_page = g_list_last(preview_data->current_page);
655 gtk_widget_queue_draw(preview_data->area);
658 static void cb_preview_btn_close(GtkButton *button, gpointer data)
660 PreviewData *preview_data = (PreviewData *)data;
661 if (preview_data->rendering)
663 gtk_widget_destroy(preview_data->dialog);
666 static void cb_preview_zoom_100(GtkButton *button, gpointer data)
668 PreviewData *preview_data = (PreviewData*) data;
669 if(preview_data->print_data->zoom != 1.) {
670 preview_data->print_data->zoom = 1.;
671 gtk_widget_queue_draw(preview_data->area);
672 printing_preview_update_zoom_sensitivity(preview_data);
676 static void cb_preview_zoom_fit(GtkButton *button, gpointer data)
678 PreviewData *preview_data = (PreviewData*) data;
682 zoom_w = ((gdouble)preview_data->scrolled_window->allocation.width) /
683 ((gdouble)preview_data->page_width/preview_data->print_data->zoom +
684 PREVIEW_SHADOW_OFFSET);
685 zoom_h = ((gdouble)preview_data->scrolled_window->allocation.height) /
686 ((gdouble)preview_data->page_height/preview_data->print_data->zoom +
687 PREVIEW_SHADOW_OFFSET);
689 preview_data->print_data->zoom = MIN(zoom_w,zoom_h) - 0.01;
691 if(preview_data->print_data->zoom > PREVIEW_ZOOM_MAX)
692 preview_data->print_data->zoom = PREVIEW_ZOOM_MAX;
693 else if(preview_data->print_data->zoom < PREVIEW_ZOOM_MIN)
694 preview_data->print_data->zoom = PREVIEW_ZOOM_MIN;
696 printing_preview_update_zoom_sensitivity(preview_data);
697 gtk_widget_queue_draw(preview_data->area);
700 static void cb_preview_zoom_in(GtkButton *button, gpointer data)
702 PreviewData *preview_data = (PreviewData*) data;
704 new_zoom = preview_data->print_data->zoom * PREVIEW_ZOOM_FAC;
705 if(new_zoom <= PREVIEW_ZOOM_MAX) {
706 preview_data->print_data->zoom = new_zoom;
707 printing_preview_update_zoom_sensitivity(preview_data);
708 gtk_widget_queue_draw(preview_data->area);
712 static void cb_preview_zoom_out(GtkButton *button, gpointer data)
714 PreviewData *preview_data = (PreviewData*) data;
716 new_zoom = preview_data->print_data->zoom / PREVIEW_ZOOM_FAC;
717 if(new_zoom >= PREVIEW_ZOOM_MIN) {
718 preview_data->print_data->zoom = new_zoom;
719 printing_preview_update_zoom_sensitivity(preview_data);
720 gtk_widget_queue_draw(preview_data->area);
724 static void cb_preview_request_page_setup(GtkPrintOperation *op,
725 GtkPrintContext *context,
727 GtkPageSetup *setup,gpointer data)
729 GtkPaperSize *paper_size;
730 GtkPaperSize *old_size;
734 gdouble bottom_margin;
736 gdouble right_margin;
738 PreviewData *preview_data = (PreviewData*) data;
740 old_size = gtk_page_setup_get_paper_size(setup);
741 width = gtk_paper_size_get_width(old_size,GTK_UNIT_INCH);
742 height = gtk_paper_size_get_height(old_size,GTK_UNIT_INCH);
744 top_margin = gtk_page_setup_get_top_margin(setup,GTK_UNIT_INCH);
745 bottom_margin = gtk_page_setup_get_bottom_margin(setup,GTK_UNIT_INCH);
746 left_margin = gtk_page_setup_get_left_margin(setup,GTK_UNIT_INCH);
747 right_margin = gtk_page_setup_get_right_margin(setup,GTK_UNIT_INCH);
749 paper_size = gtk_paper_size_new_custom("preview paper", "preview_paper",
750 width*preview_data->print_data->zoom,
751 height*preview_data->print_data->zoom,
753 gtk_page_setup_set_paper_size(setup, paper_size);
754 gtk_paper_size_free(paper_size);
756 gtk_page_setup_set_top_margin(setup,top_margin*preview_data->print_data->zoom,
758 gtk_page_setup_set_bottom_margin(setup,bottom_margin*preview_data->print_data->zoom,
760 gtk_page_setup_set_left_margin(setup,left_margin*preview_data->print_data->zoom,
762 gtk_page_setup_set_right_margin(setup,right_margin*preview_data->print_data->zoom,
766 static void printing_textview_cb_begin_print(GtkPrintOperation *op, GtkPrintContext *context,
769 double width, height;
773 PrintData *print_data;
774 PangoFontDescription *desc;
776 PangoLayoutIter *iter;
779 gint num_header_lines;
781 gboolean header_done;
783 double line_height =0.;
785 print_data = (PrintData*) user_data;
787 debug_print("Preparing print job...\n");
789 width = gtk_print_context_get_width(context);
790 height = gtk_print_context_get_height(context);
792 if (print_data->layout == NULL)
793 print_data->layout = gtk_print_context_create_pango_layout(context);
795 if(prefs_common.use_different_print_font)
796 desc = pango_font_description_from_string(prefs_common.printfont);
798 desc = pango_font_description_copy(
799 pango_context_get_font_description(print_data->pango_context));
801 pango_layout_set_font_description(print_data->layout, desc);
802 pango_font_description_free(desc);
804 pango_layout_set_width(print_data->layout, width * PANGO_SCALE);
805 pango_layout_set_text(print_data->layout, (char *)print_data->to_print, -1);
807 printing_layout_set_text_attributes(print_data, context);
809 num_lines = pango_layout_get_line_count(print_data->layout);
816 iter = pango_layout_get_iter(print_data->layout);
818 /* find the last character of the header */
821 text = pango_layout_get_text(print_data->layout);
822 if(text && *text && *text != '\n') {
824 if(text[0] == '\n' && (text[1] != '\0') && (text[1] == '\n'))
829 } while(*text && !header_done);
831 /* find line number for header end */
832 pango_layout_index_to_line_x(print_data->layout, header_end_pos, 1,
833 &num_header_lines, &dummy);
834 /* line count is zero-based */
838 PangoRectangle logical_rect;
839 PangoLayoutLine *line;
840 PangoAttrShape *attr = NULL;
844 line = pango_layout_iter_get_line(iter);
846 pango_layout_iter_get_line_extents(iter, NULL, &logical_rect);
847 baseline = pango_layout_iter_get_baseline(iter);
849 if ((attr = g_hash_table_lookup(print_data->images, GINT_TO_POINTER(pango_layout_iter_get_index(iter)))) != NULL) {
850 line_height = (double)gdk_pixbuf_get_height(GDK_PIXBUF(attr->data));
852 line_height = ((double)logical_rect.height) / PANGO_SCALE;
855 if((page_height + line_height) > height) {
856 page_breaks = g_list_prepend(page_breaks, GINT_TO_POINTER(ii));
860 if(ii == num_header_lines) {
862 pango_layout_iter_get_line_yrange(iter,&y0,&y1);
863 print_data->ypos_line = (double)y0 + 1./3.*((double)(y1 - y0))/2.;
866 page_height += line_height;
868 } while(ii < num_lines && pango_layout_iter_next_line(iter));
869 pango_layout_iter_free(iter);
871 page_breaks = g_list_reverse(page_breaks);
872 print_data->npages = g_list_length(page_breaks) + 1;
873 print_data->page_breaks = page_breaks;
875 gtk_print_operation_set_n_pages(op, print_data->npages);
877 debug_print("Starting print job...\n");
880 static cairo_surface_t *pixbuf_to_surface(GdkPixbuf *pixbuf)
882 cairo_surface_t *surface;
883 cairo_format_t format;
884 static const cairo_user_data_key_t key;
885 guchar *pixels = g_malloc(
887 gdk_pixbuf_get_width(pixbuf)*
888 gdk_pixbuf_get_height(pixbuf));
889 guchar *src_pixels = gdk_pixbuf_get_pixels (pixbuf);
890 gint width = gdk_pixbuf_get_width(pixbuf);
891 gint height = gdk_pixbuf_get_height(pixbuf);
892 gint nchans = gdk_pixbuf_get_n_channels (pixbuf);
893 gint stride = gdk_pixbuf_get_rowstride (pixbuf);
897 format = CAIRO_FORMAT_RGB24;
899 format = CAIRO_FORMAT_ARGB32;
900 surface = cairo_image_surface_create_for_data (pixels,
901 format, width, height, 4*width);
902 cairo_surface_set_user_data (surface, &key,
903 pixels, (cairo_destroy_func_t)g_free);
905 for (j = height; j; j--) {
906 guchar *p = src_pixels;
910 guchar *end = p + 3 * width;
913 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
926 guchar *end = p + 4 * width;
929 #define MULT(d,c,a,t) G_STMT_START { t = c * a + 0x7f; d = ((t >> 8) + t) >> 8; } G_STMT_END
932 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
933 MULT(q[0], p[2], p[3], t1);
934 MULT(q[1], p[1], p[3], t2);
935 MULT(q[2], p[0], p[3], t3);
939 MULT(q[1], p[0], p[3], t1);
940 MULT(q[2], p[1], p[3], t2);
941 MULT(q[3], p[2], p[3], t3);
951 src_pixels += stride;
958 static void printing_textview_cb_draw_page(GtkPrintOperation *op, GtkPrintContext *context,
959 int page_nr, gpointer user_data)
962 PrintData *print_data;
965 PangoLayoutIter *iter;
967 gboolean notlast = TRUE;
969 print_data = (PrintData*) user_data;
974 pagebreak = g_list_nth(print_data->page_breaks, page_nr - 1);
975 start = GPOINTER_TO_INT(pagebreak->data);
978 pagebreak = g_list_nth(print_data->page_breaks, page_nr);
979 if(pagebreak == NULL)
980 end = pango_layout_get_line_count(print_data->layout);
982 end = GPOINTER_TO_INT(pagebreak->data);
984 cr = gtk_print_context_get_cairo_context(context);
985 cairo_scale(cr, print_data->zoom, print_data->zoom);
986 cairo_set_source_rgb(cr, 0., 0., 0.);
990 iter = pango_layout_get_iter(print_data->layout);
992 PangoRectangle logical_rect;
993 PangoLayoutLine *line;
994 PangoAttrShape *attr = NULL;
998 line = pango_layout_iter_get_line(iter);
1000 pango_layout_iter_get_line_extents(iter, NULL, &logical_rect);
1001 baseline = pango_layout_iter_get_baseline(iter);
1004 start_pos = ((double)logical_rect.y) / PANGO_SCALE;
1006 /* Draw header separator line */
1008 cairo_surface_t *surface;
1009 surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1010 gtk_print_context_get_width(context)/print_data->zoom,
1011 gtk_print_context_get_height(context)/print_data->zoom);
1012 cairo_set_line_width(cr, .5);
1013 cairo_set_source_surface(cr, surface,
1014 ((double)logical_rect.x) / PANGO_SCALE,
1015 ((double)baseline) / PANGO_SCALE - start_pos);
1017 ((double)logical_rect.x) / PANGO_SCALE,
1018 (double)print_data->ypos_line / PANGO_SCALE);
1019 cairo_rel_line_to(cr, gtk_print_context_get_width(context)/print_data->zoom, 0);
1020 cairo_set_source_rgb(cr, 0., 0., 0.);
1022 cairo_surface_destroy(surface);
1026 ((double)logical_rect.x) / PANGO_SCALE,
1027 ((double)baseline) / PANGO_SCALE - start_pos);
1029 if ((attr = g_hash_table_lookup(print_data->images, GINT_TO_POINTER(pango_layout_iter_get_index(iter)))) != NULL) {
1030 cairo_surface_t *surface;
1032 surface = pixbuf_to_surface(GDK_PIXBUF(attr->data));
1033 cairo_set_source_surface (cr, surface,
1034 ((double)logical_rect.x) / PANGO_SCALE,
1035 ((double)baseline) / PANGO_SCALE - start_pos);
1037 cairo_surface_destroy (surface);
1039 pango_cairo_show_layout_line(cr, line);
1043 } while(ii < end && (notlast = pango_layout_iter_next_line(iter)));
1044 pango_layout_iter_free(iter);
1045 debug_print("Sent page %d to printer\n", page_nr+1);
1048 static void printing_layout_set_text_attributes(PrintData *print_data, GtkPrintContext *context)
1051 PangoAttrList *attr_list;
1052 PangoAttribute *attr;
1053 GSList *open_attrs, *attr_walk;
1054 GtkTextView *text_view = GTK_TEXT_VIEW(print_data->renderer_data);
1055 GtkTextBuffer *buffer = gtk_text_view_get_buffer(text_view);
1057 attr_list = pango_attr_list_new();
1058 if (print_data->sel_start < 0 || print_data->sel_end <= print_data->sel_start) {
1059 gtk_text_buffer_get_start_iter(buffer, &iter);
1061 gtk_text_buffer_get_iter_at_offset(buffer, &iter, print_data->sel_start);
1066 gboolean fg_set, bg_set, under_set, strike_set, weight_set;
1067 GSList *tags, *tag_walk;
1070 PangoUnderline underline;
1071 gboolean strikethrough;
1075 if (prefs_common.print_imgs && (image = gtk_text_iter_get_pixbuf(&iter)) != NULL) {
1076 PangoRectangle rect = {0, 0, 0, 0};
1077 gint startpos = printing_text_iter_get_offset_bytes(print_data, &iter);
1078 gint h = gdk_pixbuf_get_height(image);
1079 gint w = gdk_pixbuf_get_width(image);
1080 gint a_h = gtk_print_context_get_height(context);
1081 gint a_w = gtk_print_context_get_width(context);
1083 GdkPixbuf *scaled = NULL;
1084 image_viewer_get_resized_size(w, h, a_w, a_h, &r_w, &r_h);
1087 rect.width = r_w * PANGO_SCALE;
1088 rect.height = r_h * PANGO_SCALE;
1090 scaled = gdk_pixbuf_scale_simple(image, r_w, r_h, GDK_INTERP_BILINEAR);
1091 attr = pango_attr_shape_new_with_data (&rect, &rect,
1092 scaled, NULL, NULL);
1093 attr->start_index = startpos;
1094 attr->end_index = startpos+1;
1095 pango_attr_list_insert(attr_list, attr);
1096 g_hash_table_insert(print_data->images, GINT_TO_POINTER(startpos), attr);
1097 print_data->img_cnt++;
1100 if(gtk_text_iter_ends_tag(&iter, NULL)) {
1101 PangoAttrColor *attr_color;
1102 PangoAttrInt *attr_int;
1104 tags = gtk_text_iter_get_toggled_tags(&iter, FALSE);
1105 for(tag_walk = tags; tag_walk != NULL; tag_walk = tag_walk->next) {
1108 tag = GTK_TEXT_TAG(tag_walk->data);
1109 g_object_get(G_OBJECT(tag),
1110 "background-set", &bg_set,
1111 "foreground-set", &fg_set,
1112 "underline-set",&under_set,
1113 "strikethrough-set", &strike_set,
1114 "weight-set", &weight_set,
1119 for(attr_walk = open_attrs; attr_walk != NULL; attr_walk = attr_walk->next) {
1120 attr = (PangoAttribute*)attr_walk->data;
1121 if(attr->klass->type == PANGO_ATTR_FOREGROUND) {
1122 attr_color = (PangoAttrColor*) attr;
1123 g_object_get(G_OBJECT(tag), "foreground_gdk", &color, NULL);
1124 if(printing_is_pango_gdk_color_equal(&(attr_color->color), color)) {
1125 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1126 pango_attr_list_insert(attr_list, attr);
1128 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1132 gdk_color_free(color);
1136 debug_print("Error generating attribute list.\n");
1141 for(attr_walk = open_attrs; attr_walk != NULL; attr_walk = attr_walk->next) {
1142 attr = (PangoAttribute*)attr_walk->data;
1143 if(attr->klass->type == PANGO_ATTR_BACKGROUND) {
1144 attr_color = (PangoAttrColor*) attr;
1145 g_object_get(G_OBJECT(tag), "background-gdk", &color, NULL);
1146 if(printing_is_pango_gdk_color_equal(&(attr_color->color), color)) {
1147 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1148 pango_attr_list_insert(attr_list, attr);
1150 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1154 gdk_color_free(color);
1158 debug_print("Error generating attribute list.\n");
1163 for(attr_walk = open_attrs; attr_walk != NULL; attr_walk = attr_walk->next) {
1164 attr = (PangoAttribute*)attr_walk->data;
1165 if(attr->klass->type == PANGO_ATTR_UNDERLINE) {
1166 attr_int = (PangoAttrInt*)attr;
1167 g_object_get(G_OBJECT(tag), "underline", &underline, NULL);
1168 if(attr_int->value == underline) {
1169 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1170 pango_attr_list_insert(attr_list, attr);
1172 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1178 debug_print("Error generating attribute list.\n");
1183 for(attr_walk = open_attrs; attr_walk != NULL; attr_walk = attr_walk->next) {
1184 attr = (PangoAttribute*)attr_walk->data;
1185 if(attr->klass->type == PANGO_ATTR_STRIKETHROUGH) {
1186 attr_int = (PangoAttrInt*)attr;
1187 g_object_get(G_OBJECT(tag), "strikethrough", &strikethrough, NULL);
1188 if(attr_int->value == strikethrough) {
1189 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1190 pango_attr_list_insert(attr_list, attr);
1192 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1198 debug_print("Error generating attribute list.\n");
1203 for(attr_walk = open_attrs; attr_walk != NULL; attr_walk = attr_walk->next) {
1204 attr = (PangoAttribute*)attr_walk->data;
1205 if(attr->klass->type == PANGO_ATTR_WEIGHT) {
1206 attr_int = (PangoAttrInt*)attr;
1207 g_object_get(G_OBJECT(tag), "weight", &weight, NULL);
1208 if(attr_int->value == weight) {
1209 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1210 pango_attr_list_insert(attr_list, attr);
1212 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1218 debug_print("Error generating attribute list.\n");
1226 if(gtk_text_iter_begins_tag(&iter, NULL)) {
1227 tags = gtk_text_iter_get_toggled_tags(&iter, TRUE);
1228 /* Sometimes, an iter has several weights. Use only the first in this case */
1229 gboolean weight_set_for_this_iter;
1230 weight_set_for_this_iter = FALSE;
1231 for(tag_walk = tags; tag_walk != NULL; tag_walk = tag_walk->next) {
1232 tag = GTK_TEXT_TAG(tag_walk->data);
1233 g_object_get(G_OBJECT(tag),
1234 "background-set", &bg_set,
1235 "foreground-set", &fg_set,
1236 "underline-set", &under_set,
1237 "strikethrough-set", &strike_set,
1240 g_object_get(G_OBJECT(tag), "foreground-gdk", &color, NULL);
1241 attr = pango_attr_foreground_new(color->red,color->green,color->blue);
1242 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1243 open_attrs = g_slist_prepend(open_attrs, attr);
1246 g_object_get(G_OBJECT(tag), "background-gdk", &color, NULL);
1247 attr = pango_attr_background_new(color->red,color->green,color->blue);
1248 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1249 open_attrs = g_slist_prepend(open_attrs, attr);
1252 g_object_get(G_OBJECT(tag), "underline", &underline, NULL);
1253 attr = pango_attr_underline_new(underline);
1254 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1255 open_attrs = g_slist_prepend(open_attrs, attr);
1258 g_object_get(G_OBJECT(tag), "strikethrough", &strikethrough, NULL);
1259 attr = pango_attr_strikethrough_new(strikethrough);
1260 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1261 open_attrs = g_slist_prepend(open_attrs, attr);
1263 if(weight_set && !weight_set_for_this_iter) {
1264 weight_set_for_this_iter = TRUE;
1265 g_object_get(G_OBJECT(tag), "weight", &weight, NULL);
1266 attr = pango_attr_weight_new(weight);
1267 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1268 open_attrs = g_slist_prepend(open_attrs, attr);
1274 } while(!gtk_text_iter_is_end(&iter) && gtk_text_iter_forward_to_tag_toggle(&iter, NULL));
1276 /* close all open attributes */
1277 for(attr_walk = open_attrs; attr_walk != NULL; attr_walk = attr_walk->next) {
1278 attr = (PangoAttribute*) attr_walk->data;
1279 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1280 pango_attr_list_insert(attr_list, attr);
1282 g_slist_free(open_attrs);
1284 pango_layout_set_attributes(print_data->layout, attr_list);
1285 pango_attr_list_unref(attr_list);
1288 static gboolean printing_is_pango_gdk_color_equal(PangoColor *p, GdkColor *g)
1290 return ((p->red == g->red) && (p->green == g->green) && (p->blue == g->blue));
1293 /* Pango has it's attribute in bytes, but GtkTextIter gets only an offset
1294 * in characters, so here we're returning an offset in bytes.
1296 static gint printing_text_iter_get_offset_bytes(PrintData *print_data, const GtkTextIter *iter)
1303 off_chars = gtk_text_iter_get_offset(iter);
1304 if (print_data->sel_start < 0 || print_data->sel_end <= print_data->sel_start) {
1305 gtk_text_buffer_get_start_iter(gtk_text_iter_get_buffer(iter), &start);
1307 gtk_text_buffer_get_iter_at_offset(gtk_text_iter_get_buffer(iter), &start, print_data->sel_start);
1309 text = gtk_text_iter_get_text(&start, iter);
1310 off_bytes = strlen(text);
1315 static void printing_preview_update_zoom_sensitivity(PreviewData *preview_data)
1317 if((preview_data->print_data->zoom * PREVIEW_ZOOM_FAC) > PREVIEW_ZOOM_MAX)
1318 gtk_widget_set_sensitive(preview_data->zoom_in, FALSE);
1320 gtk_widget_set_sensitive(preview_data->zoom_in, TRUE);
1322 if((preview_data->print_data->zoom / PREVIEW_ZOOM_FAC) < PREVIEW_ZOOM_MIN)
1323 gtk_widget_set_sensitive(preview_data->zoom_out, FALSE);
1325 gtk_widget_set_sensitive(preview_data->zoom_out, TRUE);
1328 #endif /* GTK+ >= 2.10.0 */