1 /* Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
2 * Copyright (C) 2007-2012 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/>.
22 #include "claws-features.h"
28 #include "image_viewer.h"
32 #include "prefs_common.h"
34 #include <glib/gi18n.h>
35 #include <gdk/gdkkeysyms.h>
37 #include <pango/pango.h>
42 PrintRenderer *renderer;
43 gpointer renderer_data;
45 PangoContext *pango_context;
59 GtkPrintOperation *op;
60 GtkPrintOperationPreview *preview;
62 GtkWidget *scrolled_window;
64 PrintData *print_data;
65 GtkWidget *page_nr_label;
66 GList *pages_to_print;
80 GtkPrintContext *context;
84 static void printing_textview_cb_begin_print(GtkPrintOperation*,
85 GtkPrintContext*, gpointer);
86 static void printing_textview_cb_draw_page(GtkPrintOperation*,
87 GtkPrintContext*, gint,
89 static gboolean cb_preview(GtkPrintOperation*, GtkPrintOperationPreview*,
90 GtkPrintContext*, GtkWindow*, gpointer);
91 static void cb_preview_destroy(GtkWindow*, gpointer);
92 static gboolean cb_preview_close(GtkWidget*, GdkEventAny*, gpointer);
93 static void cb_preview_size_allocate(GtkWidget*, GtkAllocation*);
94 static void cb_preview_ready(GtkPrintOperationPreview*,
95 GtkPrintContext*, gpointer);
96 static gboolean cb_preview_expose(GtkWidget*, GdkEventExpose*, gpointer);
97 static void cb_preview_got_page_size(GtkPrintOperationPreview*,
99 GtkPageSetup*, gpointer);
100 static void cb_preview_go_first(GtkButton*, gpointer);
101 static void cb_preview_go_previous(GtkButton*, gpointer);
102 static void cb_preview_go_next(GtkButton*, gpointer);
103 static void cb_preview_go_last(GtkButton*, gpointer);
104 static void cb_preview_btn_close(GtkButton*, gpointer);
105 static void cb_preview_zoom_100(GtkButton*, gpointer);
106 static void cb_preview_zoom_fit(GtkButton*, gpointer);
107 static void cb_preview_zoom_in(GtkButton*, gpointer);
108 static void cb_preview_zoom_out(GtkButton*, gpointer);
109 static void cb_preview_request_page_setup(GtkPrintOperation*,
111 gint,GtkPageSetup*,gpointer);
113 static void printing_preview_update_zoom_sensitivity(PreviewData*);
116 static GtkPrintSettings *settings = NULL;
117 static GtkPageSetup *page_setup = NULL;
119 /* other static functions */
120 static void printing_layout_set_text_attributes(PrintData*, GtkPrintContext *, gboolean *);
121 static gboolean printing_is_pango_gdk_color_equal(PangoColor*, GdkColor*);
122 static gint printing_text_iter_get_offset_bytes(PrintData *, const GtkTextIter*);
124 #define PAGE_MARGIN_STORAGE_UNIT GTK_UNIT_MM
125 #define PREVIEW_SCALE 72
126 #define PREVIEW_SHADOW_OFFSET 3
127 #define PREVIEW_ZOOM_FAC 1.41
128 #define PREVIEW_ZOOM_MAX 10.
129 #define PREVIEW_ZOOM_MIN 0.2
131 static void free_pixbuf(gpointer key, gpointer value, gpointer data)
133 PangoAttrShape *attr = (PangoAttrShape *) value;
134 g_object_unref(G_OBJECT(attr->data));
137 gpointer printing_get_renderer_data(PrintData *print_data)
141 return print_data->renderer_data;
144 gdouble printing_get_zoom(PrintData *print_data)
148 return print_data->zoom;
151 void printing_set_n_pages(PrintData *print_data, gint n_pages)
155 print_data->npages = n_pages;
158 GtkPrintSettings *printing_get_settings(void)
160 if (settings == NULL) {
161 settings = gtk_print_settings_new();
162 gtk_print_settings_set_use_color(settings, prefs_common.print_use_color);
163 gtk_print_settings_set_collate(settings, prefs_common.print_use_collate);
164 gtk_print_settings_set_reverse(settings, prefs_common.print_use_reverse);
165 gtk_print_settings_set_duplex(settings, prefs_common.print_use_duplex);
170 void printing_store_settings(GtkPrintSettings *new_settings)
172 if (settings != NULL)
173 g_object_unref(settings);
175 settings = g_object_ref(new_settings);
176 prefs_common.print_use_color = gtk_print_settings_get_use_color(settings);
177 prefs_common.print_use_collate = gtk_print_settings_get_collate(settings);
178 prefs_common.print_use_reverse = gtk_print_settings_get_reverse(settings);
179 prefs_common.print_use_duplex = gtk_print_settings_get_duplex(settings);
182 GtkPageSetup *printing_get_page_setup(void)
184 if (page_setup == NULL) {
185 gboolean read_from_file;
186 char *page_setup_filename;
188 gboolean key_file_read;
190 page_setup = gtk_page_setup_new();
192 read_from_file = FALSE;
194 /* try reading the page setup from file */
195 page_setup_filename = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
196 PRINTING_PAGE_SETUP_STORAGE_FILE, NULL);
197 keyfile = g_key_file_new();
198 key_file_read = g_key_file_load_from_file(keyfile, page_setup_filename,
200 g_free(page_setup_filename);
203 read_from_file = gtk_page_setup_load_key_file(page_setup, keyfile,
205 g_key_file_free(keyfile);
207 if (read_from_file) {
208 debug_print("Printing: Read page setup from key file\n");
210 debug_print("Printing: Could not read page setup from key file\n");
213 /* if reading from file did not work, or has not been tried (GTK+ < 2.14), use prefs */
214 if (!read_from_file) {
216 if (prefs_common.print_paper_type &&
217 *prefs_common.print_paper_type) {
218 GtkPaperSize *paper = gtk_paper_size_new(prefs_common.print_paper_type);
219 gtk_page_setup_set_paper_size(page_setup, paper);
220 gtk_paper_size_free(paper);
223 gtk_page_setup_set_orientation(page_setup,
224 prefs_common.print_paper_orientation);
226 if (prefs_common.print_margin_top != -1)
227 gtk_page_setup_set_top_margin(page_setup,
228 0.01*prefs_common.print_margin_top,
229 PAGE_MARGIN_STORAGE_UNIT);
230 if (prefs_common.print_margin_bottom != -1)
231 gtk_page_setup_set_bottom_margin(page_setup,
232 0.01*prefs_common.print_margin_bottom,
233 PAGE_MARGIN_STORAGE_UNIT);
234 if (prefs_common.print_margin_left != -1)
235 gtk_page_setup_set_left_margin(page_setup,
236 0.01*prefs_common.print_margin_left,
237 PAGE_MARGIN_STORAGE_UNIT);
238 if (prefs_common.print_margin_right != -1)
239 gtk_page_setup_set_right_margin(page_setup,
240 0.01*prefs_common.print_margin_right,
241 PAGE_MARGIN_STORAGE_UNIT);
247 void printing_print_full(GtkWindow *parent, PrintRenderer *renderer, gpointer renderer_data,
248 gint sel_start, gint sel_end, GtkImage *avatar)
250 GtkPrintOperation *op;
251 GtkPrintOperationResult res;
252 PrintData *print_data;
254 op = gtk_print_operation_new();
256 print_data = g_new0(PrintData,1);
258 print_data->renderer = renderer;
259 print_data->renderer_data = renderer_data;
260 print_data->sel_start = sel_start;
261 print_data->sel_end = sel_end;
262 print_data->avatar = (avatar != NULL? GTK_IMAGE(g_object_ref(avatar)): NULL);
264 print_data->zoom = 1.;
266 print_data->images = g_hash_table_new(g_direct_hash, g_direct_equal);
268 print_data->pango_context = renderer->get_pango_context(renderer_data);
270 print_data->to_print = renderer->get_data_to_print(renderer_data, sel_start, sel_end);
272 printing_get_settings();
273 printing_get_page_setup();
275 /* Config for printing */
276 gtk_print_operation_set_print_settings(op, settings);
277 gtk_print_operation_set_default_page_setup(op, page_setup);
278 /* enable Page Size and Orientation in the print dialog */
279 gtk_print_operation_set_embed_page_setup(op, TRUE);
281 g_signal_connect(op, "begin_print", G_CALLBACK(renderer->cb_begin_print), print_data);
282 g_signal_connect(op, "draw_page", G_CALLBACK(renderer->cb_draw_page), print_data);
283 g_signal_connect(op, "preview", G_CALLBACK(cb_preview), print_data);
285 /* Start printing process */
286 res = gtk_print_operation_run(op, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
289 if (res == GTK_PRINT_OPERATION_RESULT_ERROR) {
290 GError *error = NULL;
291 gtk_print_operation_get_error(op, &error);
292 debug_print("Error printing message: %s\n",
293 error ? error->message : "no details");
294 } else if (res == GTK_PRINT_OPERATION_RESULT_APPLY) {
295 /* store settings for next printing session */
296 printing_store_settings(gtk_print_operation_get_print_settings(op));
299 g_hash_table_foreach(print_data->images, free_pixbuf, NULL);
300 g_hash_table_destroy(print_data->images);
301 if (print_data->to_print)
302 g_free(print_data->to_print);
303 g_list_free(print_data->page_breaks);
304 if (print_data->layout)
305 g_object_unref(print_data->layout);
306 if (print_data->avatar)
307 g_object_unref(print_data->avatar);
312 debug_print("printing_print finished\n");
315 static PangoContext *printing_textview_get_pango_context(gpointer data)
317 return gtk_widget_get_pango_context(GTK_WIDGET(data));
320 static gpointer printing_textview_get_data_to_print(gpointer data, gint sel_start, gint sel_end)
322 GtkTextView *text_view = GTK_TEXT_VIEW(data);
323 GtkTextBuffer *buffer = gtk_text_view_get_buffer(text_view);
324 GtkTextIter start, end;
326 if (sel_start < 0 || sel_end <= sel_start) {
327 gtk_text_buffer_get_start_iter(buffer, &start);
328 gtk_text_buffer_get_end_iter(buffer, &end);
330 gtk_text_buffer_get_iter_at_offset(buffer, &start, sel_start);
331 gtk_text_buffer_get_iter_at_offset(buffer, &end, sel_end);
334 return gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
337 void printing_print(GtkTextView *text_view, GtkWindow *parent, gint sel_start, gint sel_end, GtkImage *avatar)
339 PrintRenderer *textview_renderer = g_new0(PrintRenderer, 1);
341 textview_renderer->get_pango_context = printing_textview_get_pango_context;
342 textview_renderer->get_data_to_print = printing_textview_get_data_to_print;
343 textview_renderer->cb_begin_print = printing_textview_cb_begin_print;
344 textview_renderer->cb_draw_page = printing_textview_cb_draw_page;
346 printing_print_full(parent, textview_renderer, text_view, sel_start, sel_end, avatar);
348 g_free(textview_renderer);
351 void printing_page_setup(GtkWindow *parent)
353 GtkPageSetup *new_page_setup;
358 printing_get_settings();
359 printing_get_page_setup();
361 new_page_setup = gtk_print_run_page_setup_dialog(parent,page_setup,settings);
364 g_object_unref(page_setup);
366 page_setup = new_page_setup;
368 g_free(prefs_common.print_paper_type);
369 prefs_common.print_paper_type = g_strdup(gtk_paper_size_get_name(
370 gtk_page_setup_get_paper_size(page_setup)));
371 prefs_common.print_paper_orientation = gtk_page_setup_get_orientation(page_setup);
372 /* store 100th millimeters */
373 prefs_common.print_margin_top = (int) (100*gtk_page_setup_get_top_margin(page_setup,
374 PAGE_MARGIN_STORAGE_UNIT));
375 prefs_common.print_margin_bottom = (int) (100*gtk_page_setup_get_bottom_margin(page_setup,
376 PAGE_MARGIN_STORAGE_UNIT));
377 prefs_common.print_margin_left = (int) (100*gtk_page_setup_get_left_margin(page_setup,
378 PAGE_MARGIN_STORAGE_UNIT));
379 prefs_common.print_margin_right = (int) (100*gtk_page_setup_get_right_margin(page_setup,
380 PAGE_MARGIN_STORAGE_UNIT));
383 keyfile = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
384 PRINTING_PAGE_SETUP_STORAGE_FILE, NULL);
385 if (!gtk_page_setup_to_file(page_setup, keyfile, NULL)) {
386 debug_print("Printing: Could not store page setup in file `%s'\n", keyfile);
391 static gboolean cb_preview(GtkPrintOperation *operation,
392 GtkPrintOperationPreview *preview,
393 GtkPrintContext *context,
397 PrintData *print_data;
399 PreviewData *preview_data;
405 GtkToolItem *separator;
406 static GdkGeometry geometry;
407 GtkWidget *dialog = NULL;
408 GtkWidget *statusbar = gtk_hbox_new(2, FALSE);
410 debug_print("Creating internal print preview\n");
412 print_data = (PrintData*) data;
414 preview_data = g_new0(PreviewData,1);
415 preview_data->print_data = print_data;
416 preview_data->op = g_object_ref(operation);
417 preview_data->preview = preview;
420 dialog = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "print_preview");
421 preview_data->dialog = dialog;
422 if (!geometry.min_height) {
423 geometry.min_width = 600;
424 geometry.min_height = 400;
426 gtk_window_set_geometry_hints(GTK_WINDOW(dialog), NULL, &geometry,
428 gtk_widget_set_size_request(dialog, prefs_common.print_previewwin_width,
429 prefs_common.print_previewwin_height);
430 gtk_window_set_title(GTK_WINDOW(dialog), _("Print preview"));
433 vbox = gtk_vbox_new(FALSE, 0);
434 gtk_container_add(GTK_CONTAINER(dialog), vbox);
437 toolbar = gtk_toolbar_new();
438 gtk_orientable_set_orientation(GTK_ORIENTABLE(toolbar), GTK_ORIENTATION_HORIZONTAL);
440 switch (prefs_common.toolbar_style) {
442 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_ICONS);
445 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_TEXT);
447 case TOOLBAR_BOTH_HORIZ:
448 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_BOTH_HORIZ);
452 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_BOTH);
454 gtk_toolbar_set_show_arrow(GTK_TOOLBAR(toolbar), TRUE);
456 gtk_box_pack_start(GTK_BOX(vbox), toolbar, FALSE, FALSE, 0);
458 #define CLAWS_SET_TOOL_ITEM_TIP(widget,tip) { \
459 gtk_tool_item_set_tooltip_text(GTK_TOOL_ITEM(widget), tip); \
462 #define TOOLBAR_ITEM(item,text,tooltip,cb,cbdata) { \
463 item = GTK_WIDGET(gtk_tool_button_new_from_stock(text)); \
464 gtk_tool_item_set_homogeneous(GTK_TOOL_ITEM(item), FALSE); \
465 gtk_tool_item_set_is_important(GTK_TOOL_ITEM(item), TRUE); \
466 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(item), -1); \
467 g_signal_connect (G_OBJECT(item), "clicked", G_CALLBACK(cb), cbdata); \
468 CLAWS_SET_TOOL_ITEM_TIP(GTK_TOOL_ITEM(item), \
472 TOOLBAR_ITEM(preview_data->first, GTK_STOCK_GOTO_FIRST,
473 _("First page"), cb_preview_go_first, preview_data);
474 TOOLBAR_ITEM(preview_data->previous, GTK_STOCK_GO_BACK,
475 _("Previous page"), cb_preview_go_previous, preview_data);
477 page = gtk_label_new("");
478 preview_data->page_nr_label = page;
480 TOOLBAR_ITEM(preview_data->next, GTK_STOCK_GO_FORWARD,
481 _("Next page"), cb_preview_go_next, preview_data);
482 TOOLBAR_ITEM(preview_data->last, GTK_STOCK_GOTO_LAST,
483 _("Last page"), cb_preview_go_last, preview_data);
485 separator = gtk_separator_tool_item_new();
486 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(separator), -1);
488 TOOLBAR_ITEM(preview_data->zoom_100, GTK_STOCK_ZOOM_100,
489 _("Zoom 100%"), cb_preview_zoom_100, preview_data);
490 TOOLBAR_ITEM(preview_data->zoom_fit, GTK_STOCK_ZOOM_FIT,
491 _("Zoom fit"), cb_preview_zoom_fit, preview_data);
492 TOOLBAR_ITEM(preview_data->zoom_in, GTK_STOCK_ZOOM_IN,
493 _("Zoom in"), cb_preview_zoom_in, preview_data);
494 TOOLBAR_ITEM(preview_data->zoom_out, GTK_STOCK_ZOOM_OUT,
495 _("Zoom out"), cb_preview_zoom_out, preview_data);
497 separator = gtk_separator_tool_item_new();
498 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(separator), -1);
500 /* tooltip has to be NULL else it triggers an expose_event */
501 TOOLBAR_ITEM(preview_data->close, GTK_STOCK_CLOSE, NULL,
502 cb_preview_btn_close, preview_data);
504 gtk_widget_show(statusbar);
505 gtk_box_pack_start(GTK_BOX(vbox), statusbar, FALSE, FALSE, 0);
506 gtk_box_pack_start(GTK_BOX(statusbar), page, FALSE, FALSE, 0);
508 sw = gtk_scrolled_window_new(NULL, NULL);
509 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw),
510 GTK_POLICY_AUTOMATIC,
511 GTK_POLICY_AUTOMATIC);
512 gtk_box_pack_start(GTK_BOX(vbox), sw, TRUE, TRUE, 0);
513 da = gtk_drawing_area_new();
514 gtk_widget_set_double_buffered(da, FALSE);
515 gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(sw),
517 gtk_widget_realize(da);
518 preview_data->scrolled_window = sw;
519 preview_data->area = da;
522 cr = gdk_cairo_create(gtk_widget_get_window(da));
523 gtk_print_context_set_cairo_context(context, cr, PREVIEW_SCALE, PREVIEW_SCALE);
527 g_signal_connect(dialog, "key_press_event",
528 G_CALLBACK(cb_preview_close), preview_data);
529 g_signal_connect(dialog, "size_allocate",
530 G_CALLBACK(cb_preview_size_allocate), NULL);
531 g_signal_connect(dialog, "destroy",G_CALLBACK(cb_preview_destroy),
533 g_signal_connect(preview, "ready", G_CALLBACK(cb_preview_ready),
535 g_signal_connect(preview, "got-page-size",
536 G_CALLBACK(cb_preview_got_page_size), preview_data);
538 g_signal_connect(operation, "request-page-setup",
539 G_CALLBACK(cb_preview_request_page_setup), preview_data);
541 gtk_widget_show_all(dialog);
545 static void cb_preview_destroy(GtkWindow *window, gpointer data)
547 PreviewData *preview_data;
548 preview_data = (PreviewData*) data;
550 if (preview_data->rendering)
552 debug_print("Preview window destroyed\n");
554 gtk_print_operation_preview_end_preview(preview_data->preview);
555 g_object_unref(preview_data->op);
556 g_list_free(preview_data->pages_to_print);
558 g_free(preview_data);
561 static gboolean cb_preview_close(GtkWidget *widget, GdkEventAny *event,
564 PreviewData *preview_data = (PreviewData *)data;
565 if (event->type == GDK_KEY_PRESS)
566 if (((GdkEventKey *)event)->keyval != GDK_KEY_Escape)
568 if (preview_data->rendering)
570 gtk_widget_destroy(widget);
574 static void cb_preview_size_allocate(GtkWidget *widget,
575 GtkAllocation *allocation)
577 cm_return_if_fail(allocation != NULL);
579 prefs_common.print_previewwin_width = allocation->width;
580 prefs_common.print_previewwin_height = allocation->height;
583 static void cb_preview_ready(GtkPrintOperationPreview *preview,
584 GtkPrintContext *context,
587 PreviewData *preview_data;
589 preview_data = (PreviewData*) data;
590 debug_print("preview_ready %d\n", preview_data->print_data->npages);
592 for (iPage = 0; iPage < (preview_data->print_data->npages); iPage++) {
593 if (gtk_print_operation_preview_is_selected(preview_data->preview, iPage)) {
594 preview_data->pages_to_print =
595 g_list_prepend(preview_data->pages_to_print,
596 GINT_TO_POINTER(iPage));
597 debug_print("want to print page %d\n",iPage+1);
601 preview_data->pages_to_print = g_list_reverse(preview_data->pages_to_print);
602 preview_data->current_page = preview_data->pages_to_print;
603 preview_data->context = context;
605 g_signal_connect(preview_data->area, "expose_event",
606 G_CALLBACK(cb_preview_expose),
609 gtk_widget_queue_draw(preview_data->area);
612 static void cb_preview_got_page_size(GtkPrintOperationPreview *preview,
613 GtkPrintContext *context,
614 GtkPageSetup *page_setup,
617 PreviewData *preview_data;
618 GtkPaperSize *paper_size;
622 preview_data = (PreviewData*) data;
623 debug_print("got_page_size\n");
624 paper_size = gtk_page_setup_get_paper_size(page_setup);
625 paper_width = (gint)(gtk_paper_size_get_width(paper_size, GTK_UNIT_INCH)
627 paper_height = (gint)(gtk_paper_size_get_height(paper_size, GTK_UNIT_INCH)
630 preview_data->page_width = paper_width;
631 preview_data->page_height = paper_height;
633 debug_print("w/h %d/%d\n", paper_width, paper_height);
634 gtk_widget_set_size_request(GTK_WIDGET(preview_data->area),
635 paper_width, paper_height);
638 static gboolean cb_preview_expose(GtkWidget *widget, GdkEventExpose *event,
641 PreviewData *preview_data = data;
644 debug_print("preview_expose (current %p)\n", preview_data->current_page);
646 cr = gdk_cairo_create(gtk_widget_get_window(preview_data->area));
649 cairo_set_source_rgb(cr, 0.5, 0.5, 0.5);
650 cairo_rectangle(cr, event->area.x, event->area.y, event->area.width, event->area.height);
654 cairo_set_source_rgb(cr, 0., 0., 0.);
655 cairo_rectangle(cr, PREVIEW_SHADOW_OFFSET, PREVIEW_SHADOW_OFFSET,
656 preview_data->page_width+PREVIEW_SHADOW_OFFSET,
657 preview_data->page_height+PREVIEW_SHADOW_OFFSET);
661 cairo_set_source_rgb(cr, 1., 1., 1.);
662 cairo_rectangle(cr, 0, 0,
663 preview_data->page_width,
664 preview_data->page_height);
667 gtk_print_context_set_cairo_context(preview_data->context, cr, PREVIEW_SCALE, PREVIEW_SCALE);
670 if (preview_data->current_page) {
671 preview_data->rendering = TRUE;
672 gtk_widget_set_sensitive(preview_data->close, FALSE);
673 int cur = GPOINTER_TO_INT(preview_data->current_page->data);
675 str = g_strdup_printf(_("Page %d"), cur+1);
676 gtk_label_set_text(GTK_LABEL(preview_data->page_nr_label), str);
678 gtk_print_operation_preview_render_page(preview_data->preview,
680 (preview_data->current_page->data));
682 gtk_widget_set_sensitive(preview_data->first,
683 preview_data->current_page->prev != NULL);
684 gtk_widget_set_sensitive(preview_data->previous,
685 preview_data->current_page->prev != NULL);
686 gtk_widget_set_sensitive(preview_data->next,
687 preview_data->current_page->next != NULL);
688 gtk_widget_set_sensitive(preview_data->last,
689 preview_data->current_page->next != NULL);
690 gtk_widget_set_sensitive(preview_data->close, TRUE);
691 preview_data->rendering = FALSE;
696 static void cb_preview_go_first(GtkButton *button, gpointer data)
698 PreviewData *preview_data = (PreviewData*) data;
699 preview_data->current_page = preview_data->pages_to_print;
700 gtk_widget_queue_draw(preview_data->area);
703 static void cb_preview_go_previous(GtkButton *button, gpointer data)
706 PreviewData *preview_data = (PreviewData*) data;
707 next = g_list_previous(preview_data->current_page);
709 preview_data->current_page = next;
710 gtk_widget_queue_draw(preview_data->area);
713 static void cb_preview_go_next(GtkButton *button, gpointer data)
716 PreviewData *preview_data = (PreviewData*) data;
717 next = g_list_next(preview_data->current_page);
719 preview_data->current_page = next;
720 gtk_widget_queue_draw(preview_data->area);
723 static void cb_preview_go_last(GtkButton *button, gpointer data)
725 PreviewData *preview_data = (PreviewData*) data;
726 preview_data->current_page = g_list_last(preview_data->current_page);
727 gtk_widget_queue_draw(preview_data->area);
730 static void cb_preview_btn_close(GtkButton *button, gpointer data)
732 PreviewData *preview_data = (PreviewData *)data;
733 if (preview_data->rendering)
735 gtk_widget_destroy(preview_data->dialog);
738 static void cb_preview_zoom_100(GtkButton *button, gpointer data)
740 PreviewData *preview_data = (PreviewData*) data;
741 if (preview_data->print_data->zoom != 1.) {
742 preview_data->print_data->zoom = 1.;
743 gtk_widget_queue_draw(preview_data->area);
744 printing_preview_update_zoom_sensitivity(preview_data);
748 static void cb_preview_zoom_fit(GtkButton *button, gpointer data)
750 PreviewData *preview_data = (PreviewData*) data;
751 GtkAllocation allocation;
755 gtk_widget_get_allocation(preview_data->scrolled_window, &allocation);
756 zoom_w = ((gdouble)allocation.width) /
757 ((gdouble)preview_data->page_width/preview_data->print_data->zoom +
758 PREVIEW_SHADOW_OFFSET);
759 zoom_h = ((gdouble)allocation.height) /
760 ((gdouble)preview_data->page_height/preview_data->print_data->zoom +
761 PREVIEW_SHADOW_OFFSET);
763 preview_data->print_data->zoom = MIN(zoom_w,zoom_h) - 0.01;
765 if (preview_data->print_data->zoom > PREVIEW_ZOOM_MAX)
766 preview_data->print_data->zoom = PREVIEW_ZOOM_MAX;
767 else if (preview_data->print_data->zoom < PREVIEW_ZOOM_MIN)
768 preview_data->print_data->zoom = PREVIEW_ZOOM_MIN;
770 printing_preview_update_zoom_sensitivity(preview_data);
771 gtk_widget_queue_draw(preview_data->area);
774 static void cb_preview_zoom_in(GtkButton *button, gpointer data)
776 PreviewData *preview_data = (PreviewData*) data;
778 new_zoom = preview_data->print_data->zoom * PREVIEW_ZOOM_FAC;
779 if (new_zoom <= PREVIEW_ZOOM_MAX) {
780 preview_data->print_data->zoom = new_zoom;
781 printing_preview_update_zoom_sensitivity(preview_data);
782 gtk_widget_queue_draw(preview_data->area);
786 static void cb_preview_zoom_out(GtkButton *button, gpointer data)
788 PreviewData *preview_data = (PreviewData*) data;
790 new_zoom = preview_data->print_data->zoom / PREVIEW_ZOOM_FAC;
791 if (new_zoom >= PREVIEW_ZOOM_MIN) {
792 preview_data->print_data->zoom = new_zoom;
793 printing_preview_update_zoom_sensitivity(preview_data);
794 gtk_widget_queue_draw(preview_data->area);
798 static void cb_preview_request_page_setup(GtkPrintOperation *op,
799 GtkPrintContext *context,
801 GtkPageSetup *setup,gpointer data)
803 GtkPaperSize *paper_size;
804 GtkPaperSize *old_size;
808 gdouble bottom_margin;
810 gdouble right_margin;
812 PreviewData *preview_data = (PreviewData*) data;
814 old_size = gtk_page_setup_get_paper_size(setup);
815 width = gtk_paper_size_get_width(old_size,GTK_UNIT_INCH);
816 height = gtk_paper_size_get_height(old_size,GTK_UNIT_INCH);
818 top_margin = gtk_page_setup_get_top_margin(setup,GTK_UNIT_INCH);
819 bottom_margin = gtk_page_setup_get_bottom_margin(setup,GTK_UNIT_INCH);
820 left_margin = gtk_page_setup_get_left_margin(setup,GTK_UNIT_INCH);
821 right_margin = gtk_page_setup_get_right_margin(setup,GTK_UNIT_INCH);
823 paper_size = gtk_paper_size_new_custom("preview paper", "preview_paper",
824 width*preview_data->print_data->zoom,
825 height*preview_data->print_data->zoom,
827 gtk_page_setup_set_paper_size(setup, paper_size);
828 gtk_paper_size_free(paper_size);
830 gtk_page_setup_set_top_margin(setup,top_margin*preview_data->print_data->zoom,
832 gtk_page_setup_set_bottom_margin(setup,bottom_margin*preview_data->print_data->zoom,
834 gtk_page_setup_set_left_margin(setup,left_margin*preview_data->print_data->zoom,
836 gtk_page_setup_set_right_margin(setup,right_margin*preview_data->print_data->zoom,
840 static void printing_textview_cb_begin_print(GtkPrintOperation *op, GtkPrintContext *context,
843 double width, height;
847 PrintData *print_data;
848 PangoFontDescription *desc;
850 PangoLayoutIter *iter;
852 gint num_header_lines;
854 gboolean header_done;
855 gboolean has_headers = FALSE;
857 double line_height =0.;
859 print_data = (PrintData*) user_data;
861 debug_print("Preparing print job...\n");
863 width = gtk_print_context_get_width(context);
864 height = gtk_print_context_get_height(context);
866 if (print_data->layout == NULL)
867 print_data->layout = gtk_print_context_create_pango_layout(context);
869 if (prefs_common.use_different_print_font)
870 desc = pango_font_description_from_string(prefs_common.printfont);
872 desc = pango_font_description_copy(
873 pango_context_get_font_description(print_data->pango_context));
875 pango_layout_set_font_description(print_data->layout, desc);
876 pango_font_description_free(desc);
878 pango_layout_set_width(print_data->layout, width * PANGO_SCALE);
879 pango_layout_set_text(print_data->layout, (char *)print_data->to_print, -1);
881 printing_layout_set_text_attributes(print_data, context, &has_headers);
883 num_lines = pango_layout_get_line_count(print_data->layout);
889 iter = pango_layout_get_iter(print_data->layout);
891 /* find the last character of the header */
894 text = pango_layout_get_text(print_data->layout);
897 if (text && *text && *text != '\n') {
899 if (text[0] == '\n' && (text[1] != '\0') && (text[1] == '\n'))
904 } while(*text && !header_done);
906 /* find line number for header end */
907 pango_layout_index_to_line_x(print_data->layout, header_end_pos, 1,
908 &num_header_lines, &dummy);
909 /* line count is zero-based */
912 print_data->ypos_line = -1.0;
916 PangoRectangle logical_rect;
917 PangoAttrShape *attr = NULL;
920 pango_layout_iter_get_line_extents(iter, NULL, &logical_rect);
922 if ((attr = g_hash_table_lookup(print_data->images,
923 GINT_TO_POINTER(pango_layout_iter_get_index(iter)))) != NULL) {
924 line_height = (double)gdk_pixbuf_get_height(GDK_PIXBUF(attr->data));
926 line_height = ((double)logical_rect.height) / PANGO_SCALE;
929 if ((page_height + line_height) > height) {
930 page_breaks = g_list_prepend(page_breaks, GINT_TO_POINTER(ii));
934 if (has_headers && ii == num_header_lines) {
936 pango_layout_iter_get_line_yrange(iter,&y0,&y1);
937 print_data->ypos_line = (double)y0 + 1./3.*((double)(y1 - y0))/2.;
940 page_height += line_height;
942 } while(ii < num_lines && pango_layout_iter_next_line(iter));
943 pango_layout_iter_free(iter);
945 page_breaks = g_list_reverse(page_breaks);
946 print_data->npages = g_list_length(page_breaks) + 1;
947 print_data->page_breaks = page_breaks;
949 gtk_print_operation_set_n_pages(op, print_data->npages);
951 debug_print("Starting print job...\n");
954 static cairo_surface_t *pixbuf_to_surface(GdkPixbuf *pixbuf)
956 cairo_surface_t *surface;
957 cairo_format_t format;
958 static const cairo_user_data_key_t key;
959 guchar *pixels = g_malloc(
961 gdk_pixbuf_get_width(pixbuf)*
962 gdk_pixbuf_get_height(pixbuf));
963 guchar *src_pixels = gdk_pixbuf_get_pixels (pixbuf);
964 gint width = gdk_pixbuf_get_width(pixbuf);
965 gint height = gdk_pixbuf_get_height(pixbuf);
966 gint nchans = gdk_pixbuf_get_n_channels (pixbuf);
967 gint stride = gdk_pixbuf_get_rowstride (pixbuf);
971 format = CAIRO_FORMAT_RGB24;
973 format = CAIRO_FORMAT_ARGB32;
974 surface = cairo_image_surface_create_for_data (pixels,
975 format, width, height, 4*width);
976 cairo_surface_set_user_data (surface, &key,
977 pixels, (cairo_destroy_func_t)g_free);
979 for (j = height; j; j--) {
980 guchar *p = src_pixels;
984 guchar *end = p + 3 * width;
987 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
1000 guchar *end = p + 4 * width;
1003 #define MULT(d,c,a,t) G_STMT_START { t = c * a + 0x7f; d = ((t >> 8) + t) >> 8; } G_STMT_END
1006 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
1007 MULT(q[0], p[2], p[3], t1);
1008 MULT(q[1], p[1], p[3], t2);
1009 MULT(q[2], p[0], p[3], t3);
1013 MULT(q[1], p[0], p[3], t1);
1014 MULT(q[2], p[1], p[3], t2);
1015 MULT(q[3], p[2], p[3], t3);
1025 src_pixels += stride;
1026 pixels += 4 * width;
1032 static void printing_textview_cb_draw_page(GtkPrintOperation *op, GtkPrintContext *context,
1033 int page_nr, gpointer user_data)
1036 PrintData *print_data;
1039 PangoLayoutIter *iter;
1041 gboolean notlast = TRUE;
1043 print_data = (PrintData*) user_data;
1048 pagebreak = g_list_nth(print_data->page_breaks, page_nr - 1);
1049 start = GPOINTER_TO_INT(pagebreak->data);
1052 pagebreak = g_list_nth(print_data->page_breaks, page_nr);
1053 if (pagebreak == NULL)
1054 end = pango_layout_get_line_count(print_data->layout);
1056 end = GPOINTER_TO_INT(pagebreak->data);
1058 cr = gtk_print_context_get_cairo_context(context);
1059 cairo_scale(cr, print_data->zoom, print_data->zoom);
1060 cairo_set_source_rgb(cr, 0., 0., 0.);
1064 iter = pango_layout_get_iter(print_data->layout);
1066 PangoRectangle logical_rect;
1067 PangoLayoutLine *line;
1068 PangoAttrShape *attr = NULL;
1072 line = pango_layout_iter_get_line(iter);
1074 pango_layout_iter_get_line_extents(iter, NULL, &logical_rect);
1075 baseline = pango_layout_iter_get_baseline(iter);
1078 start_pos = ((double)logical_rect.y) / PANGO_SCALE;
1080 /* Draw header separator line */
1081 if (ii == 0 && print_data->ypos_line >= 0) {
1082 cairo_surface_t *surface;
1083 surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1084 gtk_print_context_get_width(context)/print_data->zoom,
1085 gtk_print_context_get_height(context)/print_data->zoom);
1086 cairo_set_line_width(cr, .5);
1087 cairo_set_source_surface(cr, surface,
1088 ((double)logical_rect.x) / PANGO_SCALE,
1089 ((double)baseline) / PANGO_SCALE - start_pos);
1090 cairo_move_to(cr, ((double)logical_rect.x) / PANGO_SCALE,
1091 (double)print_data->ypos_line / PANGO_SCALE);
1092 cairo_rel_line_to(cr, gtk_print_context_get_width(context)/print_data->zoom, 0);
1093 cairo_set_source_rgb(cr, 0., 0., 0.);
1095 cairo_surface_destroy(surface);
1099 ((double)logical_rect.x) / PANGO_SCALE,
1100 ((double)baseline) / PANGO_SCALE - start_pos);
1102 if ((attr = g_hash_table_lookup(print_data->images,
1103 GINT_TO_POINTER(pango_layout_iter_get_index(iter)))) != NULL) {
1104 cairo_surface_t *surface;
1106 surface = pixbuf_to_surface(GDK_PIXBUF(attr->data));
1107 cairo_set_source_surface (cr, surface,
1108 ((double)logical_rect.x) / PANGO_SCALE,
1109 ((double)baseline) / PANGO_SCALE - start_pos);
1111 cairo_surface_destroy (surface);
1113 pango_cairo_show_layout_line(cr, line);
1117 } while(ii < end && (notlast = pango_layout_iter_next_line(iter)));
1119 if (print_data->avatar && page_nr == 0) {
1120 cairo_surface_t *surface;
1121 GdkPixbuf *pixbuf = gtk_image_get_pixbuf(print_data->avatar);
1122 gdouble startx, starty;
1124 startx = gtk_print_context_get_width(context)/print_data->zoom;
1126 startx -= ((double)gdk_pixbuf_get_width(pixbuf));
1130 surface = pixbuf_to_surface(pixbuf);
1131 cairo_set_source_surface (cr, surface, startx, starty);
1133 cairo_surface_destroy (surface);
1136 pango_layout_iter_free(iter);
1137 debug_print("Sent page %d to printer\n", page_nr+1);
1140 static void printing_layout_set_text_attributes(PrintData *print_data,
1141 GtkPrintContext *context,
1142 gboolean *has_headers)
1145 PangoAttrList *attr_list;
1146 PangoAttribute *attr;
1147 GSList *open_attrs, *attr_walk;
1148 GtkTextView *text_view = GTK_TEXT_VIEW(print_data->renderer_data);
1149 GtkTextBuffer *buffer = gtk_text_view_get_buffer(text_view);
1151 *has_headers = FALSE;
1153 attr_list = pango_attr_list_new();
1154 if (print_data->sel_start < 0 || print_data->sel_end <= print_data->sel_start) {
1155 gtk_text_buffer_get_start_iter(buffer, &iter);
1157 gtk_text_buffer_get_iter_at_offset(buffer, &iter, print_data->sel_start);
1162 gboolean fg_set, bg_set, under_set, strike_set, weight_set;
1163 GSList *tags, *tag_walk;
1165 GdkColor *color = NULL;
1166 PangoUnderline underline;
1167 gboolean strikethrough;
1171 if (prefs_common.print_imgs && (image = gtk_text_iter_get_pixbuf(&iter)) != NULL) {
1172 PangoRectangle rect = {0, 0, 0, 0};
1173 gint startpos = printing_text_iter_get_offset_bytes(print_data, &iter);
1174 gint h = gdk_pixbuf_get_height(image);
1175 gint w = gdk_pixbuf_get_width(image);
1176 gint a_h = gtk_print_context_get_height(context);
1177 gint a_w = gtk_print_context_get_width(context);
1179 GdkPixbuf *scaled = NULL;
1180 image_viewer_get_resized_size(w, h, a_w, a_h, &r_w, &r_h);
1183 rect.width = r_w * PANGO_SCALE;
1184 rect.height = r_h * PANGO_SCALE;
1186 scaled = gdk_pixbuf_scale_simple(image, r_w, r_h, GDK_INTERP_BILINEAR);
1187 attr = pango_attr_shape_new_with_data (&rect, &rect,
1188 scaled, NULL, NULL);
1189 attr->start_index = startpos;
1190 attr->end_index = startpos+1;
1191 pango_attr_list_insert(attr_list, attr);
1192 g_hash_table_insert(print_data->images, GINT_TO_POINTER(startpos), attr);
1193 print_data->img_cnt++;
1196 if (gtk_text_iter_ends_tag(&iter, NULL)) {
1197 PangoAttrColor *attr_color;
1198 PangoAttrInt *attr_int;
1200 tags = gtk_text_iter_get_toggled_tags(&iter, FALSE);
1201 for (tag_walk = tags; tag_walk != NULL; tag_walk = tag_walk->next) {
1204 tag = GTK_TEXT_TAG(tag_walk->data);
1205 g_object_get(G_OBJECT(tag),
1206 "background-set", &bg_set,
1207 "foreground-set", &fg_set,
1208 "underline-set",&under_set,
1209 "strikethrough-set", &strike_set,
1210 "weight-set", &weight_set,
1215 for (attr_walk = open_attrs; attr_walk != NULL;
1216 attr_walk = attr_walk->next) {
1217 attr = (PangoAttribute*)attr_walk->data;
1218 if (attr->klass->type == PANGO_ATTR_FOREGROUND) {
1219 attr_color = (PangoAttrColor*) attr;
1220 g_object_get(G_OBJECT(tag), "foreground_gdk",
1223 printing_is_pango_gdk_color_equal(&(attr_color->color),
1225 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1226 pango_attr_list_insert(attr_list, attr);
1228 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1232 gdk_color_free(color);
1236 debug_print("Error generating attribute list.\n");
1241 for (attr_walk = open_attrs; attr_walk != NULL;
1242 attr_walk = attr_walk->next) {
1243 attr = (PangoAttribute*)attr_walk->data;
1244 if (attr->klass->type == PANGO_ATTR_BACKGROUND) {
1245 attr_color = (PangoAttrColor*) attr;
1246 g_object_get(G_OBJECT(tag), "background-gdk",
1249 printing_is_pango_gdk_color_equal(&(attr_color->color),
1251 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1252 pango_attr_list_insert(attr_list, attr);
1254 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1258 gdk_color_free(color);
1262 debug_print("Error generating attribute list.\n");
1267 for (attr_walk = open_attrs; attr_walk != NULL;
1268 attr_walk = attr_walk->next) {
1269 attr = (PangoAttribute*)attr_walk->data;
1270 if (attr->klass->type == PANGO_ATTR_UNDERLINE) {
1271 attr_int = (PangoAttrInt*)attr;
1272 g_object_get(G_OBJECT(tag), "underline",
1274 if (attr_int->value == underline) {
1275 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1276 pango_attr_list_insert(attr_list, attr);
1278 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1284 debug_print("Error generating attribute list.\n");
1289 for (attr_walk = open_attrs; attr_walk != NULL;
1290 attr_walk = attr_walk->next) {
1291 attr = (PangoAttribute*)attr_walk->data;
1292 if (attr->klass->type == PANGO_ATTR_STRIKETHROUGH) {
1293 attr_int = (PangoAttrInt*)attr;
1294 g_object_get(G_OBJECT(tag), "strikethrough",
1295 &strikethrough, NULL);
1296 if (attr_int->value == strikethrough) {
1297 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1298 pango_attr_list_insert(attr_list, attr);
1300 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1306 debug_print("Error generating attribute list.\n");
1311 for (attr_walk = open_attrs; attr_walk != NULL;
1312 attr_walk = attr_walk->next) {
1313 attr = (PangoAttribute*)attr_walk->data;
1314 if (attr->klass->type == PANGO_ATTR_WEIGHT) {
1315 attr_int = (PangoAttrInt*)attr;
1316 g_object_get(G_OBJECT(tag), "weight", &weight, NULL);
1317 if (attr_int->value == weight) {
1318 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1319 pango_attr_list_insert(attr_list, attr);
1321 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1327 debug_print("Error generating attribute list.\n");
1333 if (gtk_text_iter_begins_tag(&iter, NULL)) {
1334 tags = gtk_text_iter_get_toggled_tags(&iter, TRUE);
1335 /* Sometimes, an iter has several weights. Use only the first in this case */
1336 gboolean weight_set_for_this_iter;
1337 weight_set_for_this_iter = FALSE;
1338 for (tag_walk = tags; tag_walk != NULL; tag_walk = tag_walk->next) {
1339 tag = GTK_TEXT_TAG(tag_walk->data);
1340 g_object_get(G_OBJECT(tag),
1341 "background-set", &bg_set,
1342 "foreground-set", &fg_set,
1343 "underline-set", &under_set,
1344 "strikethrough-set", &strike_set,
1345 "weight-set", &weight_set,
1348 g_object_get(G_OBJECT(tag), "foreground-gdk", &color, NULL);
1349 attr = pango_attr_foreground_new(color->red,color->green,color->blue);
1350 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1351 open_attrs = g_slist_prepend(open_attrs, attr);
1354 g_object_get(G_OBJECT(tag), "background-gdk", &color, NULL);
1355 attr = pango_attr_background_new(color->red,color->green,color->blue);
1356 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1357 open_attrs = g_slist_prepend(open_attrs, attr);
1360 g_object_get(G_OBJECT(tag), "underline", &underline, NULL);
1361 attr = pango_attr_underline_new(underline);
1362 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1363 open_attrs = g_slist_prepend(open_attrs, attr);
1366 g_object_get(G_OBJECT(tag), "strikethrough", &strikethrough, NULL);
1367 attr = pango_attr_strikethrough_new(strikethrough);
1368 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1369 open_attrs = g_slist_prepend(open_attrs, attr);
1371 if (weight_set && !weight_set_for_this_iter) {
1372 weight_set_for_this_iter = TRUE;
1373 g_object_get(G_OBJECT(tag), "weight", &weight, NULL);
1374 attr = pango_attr_weight_new(weight);
1375 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1376 open_attrs = g_slist_prepend(open_attrs, attr);
1377 /* Hack to see if the first char is bold -- indicates header */
1378 if (attr->start_index == 0 && weight == PANGO_WEIGHT_BOLD) {
1379 *has_headers = TRUE;
1386 } while(!gtk_text_iter_is_end(&iter) && gtk_text_iter_forward_to_tag_toggle(&iter, NULL));
1388 /* close all open attributes */
1389 for (attr_walk = open_attrs; attr_walk != NULL; attr_walk = attr_walk->next) {
1390 attr = (PangoAttribute*) attr_walk->data;
1391 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1392 pango_attr_list_insert(attr_list, attr);
1394 g_slist_free(open_attrs);
1396 pango_layout_set_attributes(print_data->layout, attr_list);
1397 pango_attr_list_unref(attr_list);
1400 static gboolean printing_is_pango_gdk_color_equal(PangoColor *p, GdkColor *g)
1402 return ((p->red == g->red) && (p->green == g->green) && (p->blue == g->blue));
1405 /* Pango has it's attribute in bytes, but GtkTextIter gets only an offset
1406 * in characters, so here we're returning an offset in bytes.
1408 static gint printing_text_iter_get_offset_bytes(PrintData *print_data, const GtkTextIter *iter)
1414 if (print_data->sel_start < 0 || print_data->sel_end <= print_data->sel_start) {
1415 gtk_text_buffer_get_start_iter(gtk_text_iter_get_buffer(iter), &start);
1417 gtk_text_buffer_get_iter_at_offset(gtk_text_iter_get_buffer(iter), &start, print_data->sel_start);
1419 text = gtk_text_iter_get_text(&start, iter);
1420 off_bytes = strlen(text);
1425 static void printing_preview_update_zoom_sensitivity(PreviewData *preview_data)
1427 if((preview_data->print_data->zoom * PREVIEW_ZOOM_FAC) > PREVIEW_ZOOM_MAX)
1428 gtk_widget_set_sensitive(preview_data->zoom_in, FALSE);
1430 gtk_widget_set_sensitive(preview_data->zoom_in, TRUE);
1432 if ((preview_data->print_data->zoom / PREVIEW_ZOOM_FAC) < PREVIEW_ZOOM_MIN)
1433 gtk_widget_set_sensitive(preview_data->zoom_out, FALSE);
1435 gtk_widget_set_sensitive(preview_data->zoom_out, TRUE);