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Fix bug #3574: Template addressing
[claws.git] / src / printing.c
blobccd857f20627527c76998da8c959c26965aa3241
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
4 *
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.
9 *
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.
14 *
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/>.
17 *
18 */
19
20 #ifdef HAVE_CONFIG_H
21 # include "config.h"
22 #include "claws-features.h"
23 #endif
24
25 #include "defs.h"
26
27 #include "printing.h"
28 #include "image_viewer.h"
29
30 #include "gtkutils.h"
31 #include "toolbar.h"
32 #include "prefs_common.h"
33
34 #include <glib/gi18n.h>
35 #include <gdk/gdkkeysyms.h>
36 #include <gtk/gtk.h>
37 #include <pango/pango.h>
38 #include <string.h>
39 #include <math.h>
40
41 struct _PrintData {
42 PrintRenderer *renderer;
43 gpointer renderer_data;
44 PangoLayout *layout;
45 PangoContext *pango_context;
46 gpointer to_print;
47 GList *page_breaks;
48 guint npages;
49 gint sel_start;
50 gint sel_end;
51 GHashTable *images;
52 gint img_cnt;
53 gdouble zoom;
54 gdouble ypos_line;
55 GtkImage *avatar;
56 };
57
58 typedef struct {
59 GtkPrintOperation *op;
60 GtkPrintOperationPreview *preview;
61 GtkWidget *dialog;
62 GtkWidget *scrolled_window;
63 GtkWidget *area;
64 PrintData *print_data;
65 GtkWidget *page_nr_label;
66 GList *pages_to_print;
67 GList *current_page;
68 GtkWidget *first;
69 GtkWidget *next;
70 GtkWidget *previous;
71 GtkWidget *last;
72 GtkWidget *close;
73 GtkWidget *zoom_100;
74 GtkWidget *zoom_fit;
75 GtkWidget *zoom_in;
76 GtkWidget *zoom_out;
77 gboolean rendering;
78 gint page_width;
79 gint page_height;
80 GtkPrintContext *context;
81 } PreviewData;
82
83 /* callbacks */
84 static void printing_textview_cb_begin_print(GtkPrintOperation*,
85 GtkPrintContext*, gpointer);
86 static void printing_textview_cb_draw_page(GtkPrintOperation*,
87 GtkPrintContext*, gint,
88 gpointer);
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 #if !GTK_CHECK_VERSION(3, 0, 0)
97 static gboolean cb_preview_expose(GtkWidget*, GdkEventExpose*, gpointer);
98 #else
99 static gboolean cb_preview_expose(GtkWidget*, cairo_t*, gpointer);
100 #endif
101 static void cb_preview_got_page_size(GtkPrintOperationPreview*,
102 GtkPrintContext*,
103 GtkPageSetup*, gpointer);
104 static void cb_preview_go_first(GtkButton*, gpointer);
105 static void cb_preview_go_previous(GtkButton*, gpointer);
106 static void cb_preview_go_next(GtkButton*, gpointer);
107 static void cb_preview_go_last(GtkButton*, gpointer);
108 static void cb_preview_btn_close(GtkButton*, gpointer);
109 static void cb_preview_zoom_100(GtkButton*, gpointer);
110 static void cb_preview_zoom_fit(GtkButton*, gpointer);
111 static void cb_preview_zoom_in(GtkButton*, gpointer);
112 static void cb_preview_zoom_out(GtkButton*, gpointer);
113 static void cb_preview_request_page_setup(GtkPrintOperation*,
114 GtkPrintContext*,
115 gint,GtkPageSetup*,gpointer);
116
117 static void printing_preview_update_zoom_sensitivity(PreviewData*);
118
119 /* variables */
120 static GtkPrintSettings *settings = NULL;
121 static GtkPageSetup *page_setup = NULL;
122
123 /* other static functions */
124 static void printing_layout_set_text_attributes(PrintData*, GtkPrintContext *, gboolean *);
125 static gboolean printing_is_pango_gdk_color_equal(PangoColor*, GdkColor*);
126 static gint printing_text_iter_get_offset_bytes(PrintData *, const GtkTextIter*);
127
128 #define PAGE_MARGIN_STORAGE_UNIT GTK_UNIT_MM
129 #define PREVIEW_SCALE 72
130 #define PREVIEW_SHADOW_OFFSET 3
131 #define PREVIEW_ZOOM_FAC 1.41
132 #define PREVIEW_ZOOM_MAX 10.
133 #define PREVIEW_ZOOM_MIN 0.2
134
135 static void free_pixbuf(gpointer key, gpointer value, gpointer data)
136 {
137 PangoAttrShape *attr = (PangoAttrShape *) value;
138 g_object_unref(G_OBJECT(attr->data));
139 }
140
141 gpointer printing_get_renderer_data(PrintData *print_data)
142 {
143 if (!print_data)
144 return NULL;
145 return print_data->renderer_data;
146 }
147
148 gdouble printing_get_zoom(PrintData *print_data)
149 {
150 if (!print_data)
151 return 1.0;
152 return print_data->zoom;
153 }
154
155 void printing_set_n_pages(PrintData *print_data, gint n_pages)
156 {
157 if (!print_data)
158 return;
159 print_data->npages = n_pages;
160 }
161
162 GtkPrintSettings *printing_get_settings(void)
163 {
164 if (settings == NULL) {
165 settings = gtk_print_settings_new();
166 gtk_print_settings_set_use_color(settings, prefs_common.print_use_color);
167 gtk_print_settings_set_collate(settings, prefs_common.print_use_collate);
168 gtk_print_settings_set_reverse(settings, prefs_common.print_use_reverse);
169 gtk_print_settings_set_duplex(settings, prefs_common.print_use_duplex);
170 }
171 return settings;
172 }
173
174 void printing_store_settings(GtkPrintSettings *new_settings)
175 {
176 if (settings != NULL)
177 g_object_unref(settings);
178
179 settings = g_object_ref(new_settings);
180 prefs_common.print_use_color = gtk_print_settings_get_use_color(settings);
181 prefs_common.print_use_collate = gtk_print_settings_get_collate(settings);
182 prefs_common.print_use_reverse = gtk_print_settings_get_reverse(settings);
183 prefs_common.print_use_duplex = gtk_print_settings_get_duplex(settings);
184 }
185
186 GtkPageSetup *printing_get_page_setup(void)
187 {
188 if (page_setup == NULL) {
189 gboolean read_from_file;
190 char *page_setup_filename;
191 GKeyFile *keyfile;
192 gboolean key_file_read;
193
194 page_setup = gtk_page_setup_new();
195
196 read_from_file = FALSE;
197
198 /* try reading the page setup from file */
199 page_setup_filename = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
200 PRINTING_PAGE_SETUP_STORAGE_FILE, NULL);
201 keyfile = g_key_file_new();
202 key_file_read = g_key_file_load_from_file(keyfile, page_setup_filename,
203 0, NULL);
204 g_free(page_setup_filename);
205
206 if (key_file_read)
207 read_from_file = gtk_page_setup_load_key_file(page_setup, keyfile,
208 NULL, NULL);
209 g_key_file_free(keyfile);
210
211 if (read_from_file) {
212 debug_print("Printing: Read page setup from key file\n");
213 } else {
214 debug_print("Printing: Could not read page setup from key file\n");
215 }
216
217 /* if reading from file did not work, or has not been tried (GTK+ < 2.14), use prefs */
218 if (!read_from_file) {
219 /* paper size */
220 if (prefs_common.print_paper_type &&
221 *prefs_common.print_paper_type) {
222 GtkPaperSize *paper = gtk_paper_size_new(prefs_common.print_paper_type);
223 gtk_page_setup_set_paper_size(page_setup, paper);
224 gtk_paper_size_free(paper);
225 }
226 /* orientation */
227 gtk_page_setup_set_orientation(page_setup,
228 prefs_common.print_paper_orientation);
229 /* margins */
230 if (prefs_common.print_margin_top != -1)
231 gtk_page_setup_set_top_margin(page_setup,
232 0.01*prefs_common.print_margin_top,
233 PAGE_MARGIN_STORAGE_UNIT);
234 if (prefs_common.print_margin_bottom != -1)
235 gtk_page_setup_set_bottom_margin(page_setup,
236 0.01*prefs_common.print_margin_bottom,
237 PAGE_MARGIN_STORAGE_UNIT);
238 if (prefs_common.print_margin_left != -1)
239 gtk_page_setup_set_left_margin(page_setup,
240 0.01*prefs_common.print_margin_left,
241 PAGE_MARGIN_STORAGE_UNIT);
242 if (prefs_common.print_margin_right != -1)
243 gtk_page_setup_set_right_margin(page_setup,
244 0.01*prefs_common.print_margin_right,
245 PAGE_MARGIN_STORAGE_UNIT);
246 }
247 }
248 return page_setup;
249 }
250
251 void printing_print_full(GtkWindow *parent, PrintRenderer *renderer, gpointer renderer_data,
252 gint sel_start, gint sel_end, GtkImage *avatar)
253 {
254 GtkPrintOperation *op;
255 GtkPrintOperationResult res;
256 PrintData *print_data;
257
258 op = gtk_print_operation_new();
259
260 print_data = g_new0(PrintData,1);
261
262 print_data->renderer = renderer;
263 print_data->renderer_data = renderer_data;
264 print_data->sel_start = sel_start;
265 print_data->sel_end = sel_end;
266 print_data->avatar = (avatar != NULL? GTK_IMAGE(g_object_ref(avatar)): NULL);
267
268 print_data->zoom = 1.;
269
270 print_data->images = g_hash_table_new(g_direct_hash, g_direct_equal);
271
272 print_data->pango_context = renderer->get_pango_context(renderer_data);
273
274 print_data->to_print = renderer->get_data_to_print(renderer_data, sel_start, sel_end);
275
276 printing_get_settings();
277 printing_get_page_setup();
278
279 /* Config for printing */
280 gtk_print_operation_set_print_settings(op, settings);
281 gtk_print_operation_set_default_page_setup(op, page_setup);
282 #if GTK_CHECK_VERSION(2,18,0)
283 /* enable Page Size and Orientation in the print dialog */
284 gtk_print_operation_set_embed_page_setup(op, TRUE);
285 #endif
286 /* signals */
287 g_signal_connect(op, "begin_print", G_CALLBACK(renderer->cb_begin_print), print_data);
288 g_signal_connect(op, "draw_page", G_CALLBACK(renderer->cb_draw_page), print_data);
289 g_signal_connect(op, "preview", G_CALLBACK(cb_preview), print_data);
290
291 /* Start printing process */
292 res = gtk_print_operation_run(op, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
293 parent, NULL);
294
295 if (res == GTK_PRINT_OPERATION_RESULT_ERROR) {
296 GError *error = NULL;
297 gtk_print_operation_get_error(op, &error);
298 debug_print("Error printing message: %s\n",
299 error ? error->message : "no details");
300 } else if (res == GTK_PRINT_OPERATION_RESULT_APPLY) {
301 /* store settings for next printing session */
302 printing_store_settings(gtk_print_operation_get_print_settings(op));
303 }
304
305 g_hash_table_foreach(print_data->images, free_pixbuf, NULL);
306 g_hash_table_destroy(print_data->images);
307 if (print_data->to_print)
308 g_free(print_data->to_print);
309 g_list_free(print_data->page_breaks);
310 if (print_data->layout)
311 g_object_unref(print_data->layout);
312 if (print_data->avatar)
313 g_object_unref(print_data->avatar);
314
315 g_free(print_data);
316
317 g_object_unref(op);
318 debug_print("printing_print finished\n");
319 }
320
321 static PangoContext *printing_textview_get_pango_context(gpointer data)
322 {
323 return gtk_widget_get_pango_context(GTK_WIDGET(data));
324 }
325
326 static gpointer printing_textview_get_data_to_print(gpointer data, gint sel_start, gint sel_end)
327 {
328 GtkTextView *text_view = GTK_TEXT_VIEW(data);
329 GtkTextBuffer *buffer = gtk_text_view_get_buffer(text_view);
330 GtkTextIter start, end;
331
332 if (sel_start < 0 || sel_end <= sel_start) {
333 gtk_text_buffer_get_start_iter(buffer, &start);
334 gtk_text_buffer_get_end_iter(buffer, &end);
335 } else {
336 gtk_text_buffer_get_iter_at_offset(buffer, &start, sel_start);
337 gtk_text_buffer_get_iter_at_offset(buffer, &end, sel_end);
338 }
339
340 return gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
341 }
342
343 void printing_print(GtkTextView *text_view, GtkWindow *parent, gint sel_start, gint sel_end, GtkImage *avatar)
344 {
345 PrintRenderer *textview_renderer = g_new0(PrintRenderer, 1);
346
347 textview_renderer->get_pango_context = printing_textview_get_pango_context;
348 textview_renderer->get_data_to_print = printing_textview_get_data_to_print;
349 textview_renderer->cb_begin_print = printing_textview_cb_begin_print;
350 textview_renderer->cb_draw_page = printing_textview_cb_draw_page;
351
352 printing_print_full(parent, textview_renderer, text_view, sel_start, sel_end, avatar);
353
354 g_free(textview_renderer);
355 }
356
357 void printing_page_setup(GtkWindow *parent)
358 {
359 GtkPageSetup *new_page_setup;
360 char *keyfile;
361
362 keyfile = NULL;
363
364 printing_get_settings();
365 printing_get_page_setup();
366
367 new_page_setup = gtk_print_run_page_setup_dialog(parent,page_setup,settings);
368
369 if (page_setup)
370 g_object_unref(page_setup);
371
372 page_setup = new_page_setup;
373
374 g_free(prefs_common.print_paper_type);
375 prefs_common.print_paper_type = g_strdup(gtk_paper_size_get_name(
376 gtk_page_setup_get_paper_size(page_setup)));
377 prefs_common.print_paper_orientation = gtk_page_setup_get_orientation(page_setup);
378 /* store 100th millimeters */
379 prefs_common.print_margin_top = (int) (100*gtk_page_setup_get_top_margin(page_setup,
380 PAGE_MARGIN_STORAGE_UNIT));
381 prefs_common.print_margin_bottom = (int) (100*gtk_page_setup_get_bottom_margin(page_setup,
382 PAGE_MARGIN_STORAGE_UNIT));
383 prefs_common.print_margin_left = (int) (100*gtk_page_setup_get_left_margin(page_setup,
384 PAGE_MARGIN_STORAGE_UNIT));
385 prefs_common.print_margin_right = (int) (100*gtk_page_setup_get_right_margin(page_setup,
386 PAGE_MARGIN_STORAGE_UNIT));
387
388 /* save to file */
389 keyfile = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
390 PRINTING_PAGE_SETUP_STORAGE_FILE, NULL);
391 if (!gtk_page_setup_to_file(page_setup, keyfile, NULL)) {
392 debug_print("Printing: Could not store page setup in file `%s'\n", keyfile);
393 }
394 g_free(keyfile);
395 }
396
397 static gboolean cb_preview(GtkPrintOperation *operation,
398 GtkPrintOperationPreview *preview,
399 GtkPrintContext *context,
400 GtkWindow *parent,
401 gpointer data)
402 {
403 PrintData *print_data;
404 cairo_t *cr;
405 PreviewData *preview_data;
406 GtkWidget *vbox;
407 GtkWidget *toolbar;
408 GtkWidget *da;
409 GtkWidget *sw;
410 GtkWidget *page;
411 GtkToolItem *separator;
412 static GdkGeometry geometry;
413 GtkWidget *dialog = NULL;
414 GtkWidget *statusbar = gtk_hbox_new(2, FALSE);
415
416 debug_print("Creating internal print preview\n");
417
418 print_data = (PrintData*) data;
419
420 preview_data = g_new0(PreviewData,1);
421 preview_data->print_data = print_data;
422 preview_data->op = g_object_ref(operation);
423 preview_data->preview = preview;
424
425 /* Window */
426 dialog = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "print_preview");
427 preview_data->dialog = dialog;
428 if (!geometry.min_height) {
429 geometry.min_width = 600;
430 geometry.min_height = 400;
431 }
432 gtk_window_set_geometry_hints(GTK_WINDOW(dialog), NULL, &geometry,
433 GDK_HINT_MIN_SIZE);
434 gtk_widget_set_size_request(dialog, prefs_common.print_previewwin_width,
435 prefs_common.print_previewwin_height);
436 gtk_window_set_title(GTK_WINDOW(dialog), _("Print preview"));
437
438 /* vbox */
439 vbox = gtk_vbox_new(FALSE, 0);
440 gtk_container_add(GTK_CONTAINER(dialog), vbox);
441
442 /* toolbar */
443 toolbar = gtk_toolbar_new();
444 gtk_orientable_set_orientation(GTK_ORIENTABLE(toolbar), GTK_ORIENTATION_HORIZONTAL);
445
446 switch (prefs_common.toolbar_style) {
447 case TOOLBAR_ICON:
448 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_ICONS);
449 break;
450 case TOOLBAR_TEXT:
451 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_TEXT);
452 break;
453 case TOOLBAR_BOTH_HORIZ:
454 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_BOTH_HORIZ);
455 break;
456 case TOOLBAR_BOTH:
457 default:
458 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_BOTH);
459 }
460 gtk_toolbar_set_show_arrow(GTK_TOOLBAR(toolbar), TRUE);
461
462 gtk_box_pack_start(GTK_BOX(vbox), toolbar, FALSE, FALSE, 0);
463
464 #define CLAWS_SET_TOOL_ITEM_TIP(widget,tip) { \
465 gtk_tool_item_set_tooltip_text(GTK_TOOL_ITEM(widget), tip); \
466 }
467
468 #define TOOLBAR_ITEM(item,text,tooltip,cb,cbdata) { \
469 item = GTK_WIDGET(gtk_tool_button_new_from_stock(text)); \
470 gtk_tool_item_set_homogeneous(GTK_TOOL_ITEM(item), FALSE); \
471 gtk_tool_item_set_is_important(GTK_TOOL_ITEM(item), TRUE); \
472 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(item), -1); \
473 g_signal_connect (G_OBJECT(item), "clicked", G_CALLBACK(cb), cbdata); \
474 CLAWS_SET_TOOL_ITEM_TIP(GTK_TOOL_ITEM(item), \
475 tooltip); \
476 }
477
478 TOOLBAR_ITEM(preview_data->first, GTK_STOCK_GOTO_FIRST,
479 _("First page"), cb_preview_go_first, preview_data);
480 TOOLBAR_ITEM(preview_data->previous, GTK_STOCK_GO_BACK,
481 _("Previous page"), cb_preview_go_previous, preview_data);
482
483 page = gtk_label_new("");
484 gtk_widget_set_size_request(page, 100, -1);
485 preview_data->page_nr_label = page;
486
487 TOOLBAR_ITEM(preview_data->next, GTK_STOCK_GO_FORWARD,
488 _("Next page"), cb_preview_go_next, preview_data);
489 TOOLBAR_ITEM(preview_data->last, GTK_STOCK_GOTO_LAST,
490 _("Last page"), cb_preview_go_last, preview_data);
491
492 separator = gtk_separator_tool_item_new();
493 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(separator), -1);
494
495 TOOLBAR_ITEM(preview_data->zoom_100, GTK_STOCK_ZOOM_100,
496 _("Zoom 100%"), cb_preview_zoom_100, preview_data);
497 TOOLBAR_ITEM(preview_data->zoom_fit, GTK_STOCK_ZOOM_FIT,
498 _("Zoom fit"), cb_preview_zoom_fit, preview_data);
499 TOOLBAR_ITEM(preview_data->zoom_in, GTK_STOCK_ZOOM_IN,
500 _("Zoom in"), cb_preview_zoom_in, preview_data);
501 TOOLBAR_ITEM(preview_data->zoom_out, GTK_STOCK_ZOOM_OUT,
502 _("Zoom out"), cb_preview_zoom_out, preview_data);
503
504 separator = gtk_separator_tool_item_new();
505 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(separator), -1);
506
507 /* tooltip has to be NULL else it triggers an expose_event */
508 TOOLBAR_ITEM(preview_data->close, GTK_STOCK_CLOSE, NULL,
509 cb_preview_btn_close, preview_data);
510
511 gtk_widget_show(statusbar);
512 gtk_box_pack_start(GTK_BOX(vbox), statusbar, FALSE, FALSE, 0);
513 gtk_box_pack_start(GTK_BOX(statusbar), page, FALSE, FALSE, 0);
514 /* Drawing area */
515 sw = gtk_scrolled_window_new(NULL, NULL);
516 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw),
517 GTK_POLICY_AUTOMATIC,
518 GTK_POLICY_AUTOMATIC);
519 gtk_box_pack_start(GTK_BOX(vbox), sw, TRUE, TRUE, 0);
520 da = gtk_drawing_area_new();
521 gtk_widget_set_double_buffered(da, FALSE);
522 gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(sw),
523 da);
524 gtk_widget_realize(da);
525 preview_data->scrolled_window = sw;
526 preview_data->area = da;
527
528 /* cairo context */
529 cr = gdk_cairo_create(gtk_widget_get_window(da));
530 gtk_print_context_set_cairo_context(context, cr, PREVIEW_SCALE, PREVIEW_SCALE);
531 cairo_destroy(cr);
532
533 /* signals */
534 g_signal_connect(dialog, "key_press_event",
535 G_CALLBACK(cb_preview_close), preview_data);
536 g_signal_connect(dialog, "size_allocate",
537 G_CALLBACK(cb_preview_size_allocate), NULL);
538 g_signal_connect(dialog, "destroy",G_CALLBACK(cb_preview_destroy),
539 preview_data);
540 g_signal_connect(preview, "ready", G_CALLBACK(cb_preview_ready),
541 preview_data);
542 g_signal_connect(preview, "got-page-size",
543 G_CALLBACK(cb_preview_got_page_size), preview_data);
544
545 g_signal_connect(operation, "request-page-setup",
546 G_CALLBACK(cb_preview_request_page_setup), preview_data);
547
548 gtk_widget_show_all(dialog);
549 return TRUE;
550 }
551
552 static void cb_preview_destroy(GtkWindow *window, gpointer data)
553 {
554 PreviewData *preview_data;
555 preview_data = (PreviewData*) data;
556
557 if (preview_data->rendering)
558 return;
559 debug_print("Preview window destroyed\n");
560
561 gtk_print_operation_preview_end_preview(preview_data->preview);
562 g_object_unref(preview_data->op);
563 g_list_free(preview_data->pages_to_print);
564
565 g_free(preview_data);
566 }
567
568 static gboolean cb_preview_close(GtkWidget *widget, GdkEventAny *event,
569 gpointer data)
570 {
571 PreviewData *preview_data = (PreviewData *)data;
572 if (event->type == GDK_KEY_PRESS)
573 if (((GdkEventKey *)event)->keyval != GDK_KEY_Escape)
574 return FALSE;
575 if (preview_data->rendering)
576 return FALSE;
577 gtk_widget_destroy(widget);
578 return FALSE;
579 }
580
581 static void cb_preview_size_allocate(GtkWidget *widget,
582 GtkAllocation *allocation)
583 {
584 cm_return_if_fail(allocation != NULL);
585
586 prefs_common.print_previewwin_width = allocation->width;
587 prefs_common.print_previewwin_height = allocation->height;
588 }
589
590 static void cb_preview_ready(GtkPrintOperationPreview *preview,
591 GtkPrintContext *context,
592 gpointer data)
593 {
594 PreviewData *preview_data;
595 gint iPage;
596 preview_data = (PreviewData*) data;
597 debug_print("preview_ready %d\n", preview_data->print_data->npages);
598
599 for (iPage = 0; iPage < (preview_data->print_data->npages); iPage++) {
600 if (gtk_print_operation_preview_is_selected(preview_data->preview, iPage)) {
601 preview_data->pages_to_print =
602 g_list_prepend(preview_data->pages_to_print,
603 GINT_TO_POINTER(iPage));
604 debug_print("want to print page %d\n",iPage+1);
605 }
606 }
607
608 preview_data->pages_to_print = g_list_reverse(preview_data->pages_to_print);
609 preview_data->current_page = preview_data->pages_to_print;
610 preview_data->context = context;
611
612 #if !GTK_CHECK_VERSION(3, 0, 0)
613 g_signal_connect(preview_data->area, "expose_event",
614 G_CALLBACK(cb_preview_expose),
615 preview_data);
616 #else
617 g_signal_connect(preview_data->area, "draw",
618 G_CALLBACK(cb_preview_expose),
619 preview_data);
620 #endif
621
622 gtk_widget_queue_draw(preview_data->area);
623 }
624
625 static void cb_preview_got_page_size(GtkPrintOperationPreview *preview,
626 GtkPrintContext *context,
627 GtkPageSetup *page_setup,
628 gpointer data)
629 {
630 PreviewData *preview_data;
631 GtkPaperSize *paper_size;
632 gint paper_width;
633 gint paper_height;
634
635 preview_data = (PreviewData*) data;
636 debug_print("got_page_size\n");
637 paper_size = gtk_page_setup_get_paper_size(page_setup);
638 paper_width = (gint)(gtk_paper_size_get_width(paper_size, GTK_UNIT_INCH)
639 * PREVIEW_SCALE);
640 paper_height = (gint)(gtk_paper_size_get_height(paper_size, GTK_UNIT_INCH)
641 * PREVIEW_SCALE);
642
643 preview_data->page_width = paper_width;
644 preview_data->page_height = paper_height;
645
646 debug_print("w/h %d/%d\n", paper_width, paper_height);
647 gtk_widget_set_size_request(GTK_WIDGET(preview_data->area),
648 paper_width, paper_height);
649 }
650
651 #if !GTK_CHECK_VERSION(3, 0, 0)
652 static gboolean cb_preview_expose(GtkWidget *widget, GdkEventExpose *event,
653 gpointer data)
654 #else
655 static gboolean cb_preview_expose(GtkWidget *widget, cairo_t *cr,
656 gpointer data)
657 #endif
658 {
659 PreviewData *preview_data = data;
660 #if !GTK_CHECK_VERSION(3, 0, 0)
661 cairo_t *cr;
662 #endif
663
664 debug_print("preview_expose (current %p)\n", preview_data->current_page);
665
666 #if !GTK_CHECK_VERSION(3, 0, 0)
667 cr = gdk_cairo_create(gtk_widget_get_window(preview_data->area));
668 #endif
669
670 /* background */
671 cairo_set_source_rgb(cr, 0.5, 0.5, 0.5);
672 #if !GTK_CHECK_VERSION(3, 0, 0)
673 cairo_rectangle(cr, event->area.x, event->area.y, event->area.width, event->area.height);
674 #endif
675 cairo_fill(cr);
676
677 /* shadow */
678 cairo_set_source_rgb(cr, 0., 0., 0.);
679 cairo_rectangle(cr, PREVIEW_SHADOW_OFFSET, PREVIEW_SHADOW_OFFSET,
680 preview_data->page_width+PREVIEW_SHADOW_OFFSET,
681 preview_data->page_height+PREVIEW_SHADOW_OFFSET);
682 cairo_fill(cr);
683
684 /* paper */
685 cairo_set_source_rgb(cr, 1., 1., 1.);
686 cairo_rectangle(cr, 0, 0,
687 preview_data->page_width,
688 preview_data->page_height);
689 cairo_fill(cr);
690
691 gtk_print_context_set_cairo_context(preview_data->context, cr, PREVIEW_SCALE, PREVIEW_SCALE);
692 #if !GTK_CHECK_VERSION(3, 0, 0)
693 cairo_destroy(cr);
694 #endif
695
696 if (preview_data->current_page) {
697 preview_data->rendering = TRUE;
698 gtk_widget_set_sensitive(preview_data->close, FALSE);
699 int cur = GPOINTER_TO_INT(preview_data->current_page->data);
700 gchar *str;
701 str = g_strdup_printf(_("Page %d"), cur+1);
702 gtk_label_set_text(GTK_LABEL(preview_data->page_nr_label), str);
703 g_free(str);
704 gtk_print_operation_preview_render_page(preview_data->preview,
705 GPOINTER_TO_INT
706 (preview_data->current_page->data));
707
708 gtk_widget_set_sensitive(preview_data->first,
709 preview_data->current_page->prev != NULL);
710 gtk_widget_set_sensitive(preview_data->previous,
711 preview_data->current_page->prev != NULL);
712 gtk_widget_set_sensitive(preview_data->next,
713 preview_data->current_page->next != NULL);
714 gtk_widget_set_sensitive(preview_data->last,
715 preview_data->current_page->next != NULL);
716 gtk_widget_set_sensitive(preview_data->close, TRUE);
717 preview_data->rendering = FALSE;
718 }
719 return TRUE;
720 }
721
722 static void cb_preview_go_first(GtkButton *button, gpointer data)
723 {
724 PreviewData *preview_data = (PreviewData*) data;
725 preview_data->current_page = preview_data->pages_to_print;
726 gtk_widget_queue_draw(preview_data->area);
727 }
728
729 static void cb_preview_go_previous(GtkButton *button, gpointer data)
730 {
731 GList *next;
732 PreviewData *preview_data = (PreviewData*) data;
733 next = g_list_previous(preview_data->current_page);
734 if (next)
735 preview_data->current_page = next;
736 gtk_widget_queue_draw(preview_data->area);
737 }
738
739 static void cb_preview_go_next(GtkButton *button, gpointer data)
740 {
741 GList *next;
742 PreviewData *preview_data = (PreviewData*) data;
743 next = g_list_next(preview_data->current_page);
744 if (next)
745 preview_data->current_page = next;
746 gtk_widget_queue_draw(preview_data->area);
747 }
748
749 static void cb_preview_go_last(GtkButton *button, gpointer data)
750 {
751 PreviewData *preview_data = (PreviewData*) data;
752 preview_data->current_page = g_list_last(preview_data->current_page);
753 gtk_widget_queue_draw(preview_data->area);
754 }
755
756 static void cb_preview_btn_close(GtkButton *button, gpointer data)
757 {
758 PreviewData *preview_data = (PreviewData *)data;
759 if (preview_data->rendering)
760 return;
761 gtk_widget_destroy(preview_data->dialog);
762 }
763
764 static void cb_preview_zoom_100(GtkButton *button, gpointer data)
765 {
766 PreviewData *preview_data = (PreviewData*) data;
767 if (preview_data->print_data->zoom != 1.) {
768 preview_data->print_data->zoom = 1.;
769 gtk_widget_queue_draw(preview_data->area);
770 printing_preview_update_zoom_sensitivity(preview_data);
771 }
772 }
773
774 static void cb_preview_zoom_fit(GtkButton *button, gpointer data)
775 {
776 PreviewData *preview_data = (PreviewData*) data;
777 GtkAllocation allocation;
778 gdouble zoom_w;
779 gdouble zoom_h;
780
781 gtk_widget_get_allocation(preview_data->scrolled_window, &allocation);
782 zoom_w = ((gdouble)allocation.width) /
783 ((gdouble)preview_data->page_width/preview_data->print_data->zoom +
784 PREVIEW_SHADOW_OFFSET);
785 zoom_h = ((gdouble)allocation.height) /
786 ((gdouble)preview_data->page_height/preview_data->print_data->zoom +
787 PREVIEW_SHADOW_OFFSET);
788
789 preview_data->print_data->zoom = MIN(zoom_w,zoom_h) - 0.01;
790
791 if (preview_data->print_data->zoom > PREVIEW_ZOOM_MAX)
792 preview_data->print_data->zoom = PREVIEW_ZOOM_MAX;
793 else if (preview_data->print_data->zoom < PREVIEW_ZOOM_MIN)
794 preview_data->print_data->zoom = PREVIEW_ZOOM_MIN;
795
796 printing_preview_update_zoom_sensitivity(preview_data);
797 gtk_widget_queue_draw(preview_data->area);
798 }
799
800 static void cb_preview_zoom_in(GtkButton *button, gpointer data)
801 {
802 PreviewData *preview_data = (PreviewData*) data;
803 gdouble new_zoom;
804 new_zoom = preview_data->print_data->zoom * PREVIEW_ZOOM_FAC;
805 if (new_zoom <= PREVIEW_ZOOM_MAX) {
806 preview_data->print_data->zoom = new_zoom;
807 printing_preview_update_zoom_sensitivity(preview_data);
808 gtk_widget_queue_draw(preview_data->area);
809 }
810 }
811
812 static void cb_preview_zoom_out(GtkButton *button, gpointer data)
813 {
814 PreviewData *preview_data = (PreviewData*) data;
815 gdouble new_zoom;
816 new_zoom = preview_data->print_data->zoom / PREVIEW_ZOOM_FAC;
817 if (new_zoom >= PREVIEW_ZOOM_MIN) {
818 preview_data->print_data->zoom = new_zoom;
819 printing_preview_update_zoom_sensitivity(preview_data);
820 gtk_widget_queue_draw(preview_data->area);
821 }
822 }
823
824 static void cb_preview_request_page_setup(GtkPrintOperation *op,
825 GtkPrintContext *context,
826 gint page_nr,
827 GtkPageSetup *setup,gpointer data)
828 {
829 GtkPaperSize *paper_size;
830 GtkPaperSize *old_size;
831 gdouble width;
832 gdouble height;
833 gdouble top_margin;
834 gdouble bottom_margin;
835 gdouble left_margin;
836 gdouble right_margin;
837
838 PreviewData *preview_data = (PreviewData*) data;
839
840 old_size = gtk_page_setup_get_paper_size(setup);
841 width = gtk_paper_size_get_width(old_size,GTK_UNIT_INCH);
842 height = gtk_paper_size_get_height(old_size,GTK_UNIT_INCH);
843
844 top_margin = gtk_page_setup_get_top_margin(setup,GTK_UNIT_INCH);
845 bottom_margin = gtk_page_setup_get_bottom_margin(setup,GTK_UNIT_INCH);
846 left_margin = gtk_page_setup_get_left_margin(setup,GTK_UNIT_INCH);
847 right_margin = gtk_page_setup_get_right_margin(setup,GTK_UNIT_INCH);
848
849 paper_size = gtk_paper_size_new_custom("preview paper", "preview_paper",
850 width*preview_data->print_data->zoom,
851 height*preview_data->print_data->zoom,
852 GTK_UNIT_INCH);
853 gtk_page_setup_set_paper_size(setup, paper_size);
854 gtk_paper_size_free(paper_size);
855
856 gtk_page_setup_set_top_margin(setup,top_margin*preview_data->print_data->zoom,
857 GTK_UNIT_INCH);
858 gtk_page_setup_set_bottom_margin(setup,bottom_margin*preview_data->print_data->zoom,
859 GTK_UNIT_INCH);
860 gtk_page_setup_set_left_margin(setup,left_margin*preview_data->print_data->zoom,
861 GTK_UNIT_INCH);
862 gtk_page_setup_set_right_margin(setup,right_margin*preview_data->print_data->zoom,
863 GTK_UNIT_INCH);
864 }
865
866 static void printing_textview_cb_begin_print(GtkPrintOperation *op, GtkPrintContext *context,
867 gpointer user_data)
868 {
869 double width, height;
870 int num_lines;
871 double page_height;
872 GList *page_breaks;
873 PrintData *print_data;
874 PangoFontDescription *desc;
875 int start, ii;
876 PangoLayoutIter *iter;
877 gint header_end_pos;
878 gint num_header_lines;
879 gint dummy;
880 gboolean header_done;
881 gboolean has_headers = FALSE;
882 const gchar *text;
883 double line_height =0.;
884
885 print_data = (PrintData*) user_data;
886
887 debug_print("Preparing print job...\n");
888
889 width = gtk_print_context_get_width(context);
890 height = gtk_print_context_get_height(context);
891
892 if (print_data->layout == NULL)
893 print_data->layout = gtk_print_context_create_pango_layout(context);
894
895 if (prefs_common.use_different_print_font)
896 desc = pango_font_description_from_string(prefs_common.printfont);
897 else
898 desc = pango_font_description_copy(
899 pango_context_get_font_description(print_data->pango_context));
900
901 pango_layout_set_font_description(print_data->layout, desc);
902 pango_font_description_free(desc);
903
904 pango_layout_set_width(print_data->layout, width * PANGO_SCALE);
905 pango_layout_set_text(print_data->layout, (char *)print_data->to_print, -1);
906
907 printing_layout_set_text_attributes(print_data, context, &has_headers);
908
909 num_lines = pango_layout_get_line_count(print_data->layout);
910
911 page_breaks = NULL;
912 page_height = 0;
913 start = 0;
914 ii = 0;
915 iter = pango_layout_get_iter(print_data->layout);
916
917 /* find the last character of the header */
918 header_end_pos = 0;
919 header_done = FALSE;
920 text = pango_layout_get_text(print_data->layout);
921
922 if (has_headers) {
923 if (text && *text && *text != '\n') {
924 do {
925 if (text[0] == '\n' && (text[1] != '\0') && (text[1] == '\n'))
926 header_done = TRUE;
927 else
928 header_end_pos++;
929 text++;
930 } while(*text && !header_done);
931 }
932 /* find line number for header end */
933 pango_layout_index_to_line_x(print_data->layout, header_end_pos, 1,
934 &num_header_lines, &dummy);
935 /* line count is zero-based */
936 num_header_lines++;
937 } else {
938 print_data->ypos_line = -1.0;
939 }
940
941 do {
942 PangoRectangle logical_rect;
943 PangoAttrShape *attr = NULL;
944
945 if (ii >= start) {
946 pango_layout_iter_get_line_extents(iter, NULL, &logical_rect);
947
948 if ((attr = g_hash_table_lookup(print_data->images,
949 GINT_TO_POINTER(pango_layout_iter_get_index(iter)))) != NULL) {
950 line_height = (double)gdk_pixbuf_get_height(GDK_PIXBUF(attr->data));
951 } else {
952 line_height = ((double)logical_rect.height) / PANGO_SCALE;
953 }
954 }
955 if ((page_height + line_height) > height) {
956 page_breaks = g_list_prepend(page_breaks, GINT_TO_POINTER(ii));
957 page_height = 0;
958 }
959
960 if (has_headers && ii == num_header_lines) {
961 int y0, y1;
962 pango_layout_iter_get_line_yrange(iter,&y0,&y1);
963 print_data->ypos_line = (double)y0 + 1./3.*((double)(y1 - y0))/2.;
964 }
965
966 page_height += line_height;
967 ii++;
968 } while(ii < num_lines && pango_layout_iter_next_line(iter));
969 pango_layout_iter_free(iter);
970
971 page_breaks = g_list_reverse(page_breaks);
972 print_data->npages = g_list_length(page_breaks) + 1;
973 print_data->page_breaks = page_breaks;
974
975 gtk_print_operation_set_n_pages(op, print_data->npages);
976
977 debug_print("Starting print job...\n");
978 }
979
980 static cairo_surface_t *pixbuf_to_surface(GdkPixbuf *pixbuf)
981 {
982 cairo_surface_t *surface;
983 cairo_format_t format;
984 static const cairo_user_data_key_t key;
985 guchar *pixels = g_malloc(
986 4*
987 gdk_pixbuf_get_width(pixbuf)*
988 gdk_pixbuf_get_height(pixbuf));
989 guchar *src_pixels = gdk_pixbuf_get_pixels (pixbuf);
990 gint width = gdk_pixbuf_get_width(pixbuf);
991 gint height = gdk_pixbuf_get_height(pixbuf);
992 gint nchans = gdk_pixbuf_get_n_channels (pixbuf);
993 gint stride = gdk_pixbuf_get_rowstride (pixbuf);
994 gint j;
995
996 if (nchans == 3)
997 format = CAIRO_FORMAT_RGB24;
998 else
999 format = CAIRO_FORMAT_ARGB32;
1000 surface = cairo_image_surface_create_for_data (pixels,
1001 format, width, height, 4*width);
1002 cairo_surface_set_user_data (surface, &key,
1003 pixels, (cairo_destroy_func_t)g_free);
1004
1005 for (j = height; j; j--) {
1006 guchar *p = src_pixels;
1007 guchar *q = pixels;
1008
1009 if (nchans == 3) {
1010 guchar *end = p + 3 * width;
1011
1012 while (p < end) {
1013 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
1014 q[0] = p[2];
1015 q[1] = p[1];
1016 q[2] = p[0];
1017 #else
1018 q[1] = p[0];
1019 q[2] = p[1];
1020 q[3] = p[2];
1021 #endif
1022 p += 3;
1023 q += 4;
1024 }
1025 } else {
1026 guchar *end = p + 4 * width;
1027 guint t1,t2,t3;
1028
1029 #define MULT(d,c,a,t) G_STMT_START { t = c * a + 0x7f; d = ((t >> 8) + t) >> 8; } G_STMT_END
1030
1031 while (p < end) {
1032 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
1033 MULT(q[0], p[2], p[3], t1);
1034 MULT(q[1], p[1], p[3], t2);
1035 MULT(q[2], p[0], p[3], t3);
1036 q[3] = p[3];
1037 #else
1038 q[0] = p[3];
1039 MULT(q[1], p[0], p[3], t1);
1040 MULT(q[2], p[1], p[3], t2);
1041 MULT(q[3], p[2], p[3], t3);
1042 #endif
1043
1044 p += 4;
1045 q += 4;
1046 }
1047
1048 #undef MULT
1049 }
1050
1051 src_pixels += stride;
1052 pixels += 4 * width;
1053 }
1054
1055 return surface;
1056 }
1057
1058 static void printing_textview_cb_draw_page(GtkPrintOperation *op, GtkPrintContext *context,
1059 int page_nr, gpointer user_data)
1060 {
1061 cairo_t *cr;
1062 PrintData *print_data;
1063 int start, end, ii;
1064 GList *pagebreak;
1065 PangoLayoutIter *iter;
1066 double start_pos;
1067 gboolean notlast = TRUE;
1068
1069 print_data = (PrintData*) user_data;
1070
1071 if (page_nr == 0) {
1072 start = 0;
1073 } else {
1074 pagebreak = g_list_nth(print_data->page_breaks, page_nr - 1);
1075 start = GPOINTER_TO_INT(pagebreak->data);
1076 }
1077
1078 pagebreak = g_list_nth(print_data->page_breaks, page_nr);
1079 if (pagebreak == NULL)
1080 end = pango_layout_get_line_count(print_data->layout);
1081 else
1082 end = GPOINTER_TO_INT(pagebreak->data);
1083
1084 cr = gtk_print_context_get_cairo_context(context);
1085 cairo_scale(cr, print_data->zoom, print_data->zoom);
1086 cairo_set_source_rgb(cr, 0., 0., 0.);
1087
1088 ii = 0;
1089 start_pos = 0.;
1090 iter = pango_layout_get_iter(print_data->layout);
1091 do {
1092 PangoRectangle logical_rect;
1093 PangoLayoutLine *line;
1094 PangoAttrShape *attr = NULL;
1095 int baseline;
1096
1097 if (ii >= start) {
1098 line = pango_layout_iter_get_line(iter);
1099
1100 pango_layout_iter_get_line_extents(iter, NULL, &logical_rect);
1101 baseline = pango_layout_iter_get_baseline(iter);
1102
1103 if (ii == start) {
1104 start_pos = ((double)logical_rect.y) / PANGO_SCALE;
1105 }
1106 /* Draw header separator line */
1107 if (ii == 0 && print_data->ypos_line >= 0) {
1108 cairo_surface_t *surface;
1109 surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1110 gtk_print_context_get_width(context)/print_data->zoom,
1111 gtk_print_context_get_height(context)/print_data->zoom);
1112 cairo_set_line_width(cr, .5);
1113 cairo_set_source_surface(cr, surface,
1114 ((double)logical_rect.x) / PANGO_SCALE,
1115 ((double)baseline) / PANGO_SCALE - start_pos);
1116 cairo_move_to(cr, ((double)logical_rect.x) / PANGO_SCALE,
1117 (double)print_data->ypos_line / PANGO_SCALE);
1118 cairo_rel_line_to(cr, gtk_print_context_get_width(context)/print_data->zoom, 0);
1119 cairo_set_source_rgb(cr, 0., 0., 0.);
1120 cairo_stroke(cr);
1121 cairo_surface_destroy(surface);
1122 }
1123
1124 cairo_move_to(cr,
1125 ((double)logical_rect.x) / PANGO_SCALE,
1126 ((double)baseline) / PANGO_SCALE - start_pos);
1127
1128 if ((attr = g_hash_table_lookup(print_data->images,
1129 GINT_TO_POINTER(pango_layout_iter_get_index(iter)))) != NULL) {
1130 cairo_surface_t *surface;
1131
1132 surface = pixbuf_to_surface(GDK_PIXBUF(attr->data));
1133 cairo_set_source_surface (cr, surface,
1134 ((double)logical_rect.x) / PANGO_SCALE,
1135 ((double)baseline) / PANGO_SCALE - start_pos);
1136 cairo_paint (cr);
1137 cairo_surface_destroy (surface);
1138 } else {
1139 pango_cairo_show_layout_line(cr, line);
1140 }
1141 }
1142 ii++;
1143 } while(ii < end && (notlast = pango_layout_iter_next_line(iter)));
1144
1145 if (print_data->avatar && page_nr == 0) {
1146 cairo_surface_t *surface;
1147 GdkPixbuf *pixbuf = gtk_image_get_pixbuf(print_data->avatar);
1148 gdouble startx, starty;
1149
1150 startx = gtk_print_context_get_width(context)/print_data->zoom;
1151
1152 startx -= ((double)gdk_pixbuf_get_width(pixbuf));
1153
1154 starty = start_pos;
1155
1156 surface = pixbuf_to_surface(pixbuf);
1157 cairo_set_source_surface (cr, surface, startx, starty);
1158 cairo_paint (cr);
1159 cairo_surface_destroy (surface);
1160 }
1161
1162 pango_layout_iter_free(iter);
1163 debug_print("Sent page %d to printer\n", page_nr+1);
1164 }
1165
1166 static void printing_layout_set_text_attributes(PrintData *print_data,
1167 GtkPrintContext *context,
1168 gboolean *has_headers)
1169 {
1170 GtkTextIter iter;
1171 PangoAttrList *attr_list;
1172 PangoAttribute *attr;
1173 GSList *open_attrs, *attr_walk;
1174 GtkTextView *text_view = GTK_TEXT_VIEW(print_data->renderer_data);
1175 GtkTextBuffer *buffer = gtk_text_view_get_buffer(text_view);
1176
1177 *has_headers = FALSE;
1178
1179 attr_list = pango_attr_list_new();
1180 if (print_data->sel_start < 0 || print_data->sel_end <= print_data->sel_start) {
1181 gtk_text_buffer_get_start_iter(buffer, &iter);
1182 } else {
1183 gtk_text_buffer_get_iter_at_offset(buffer, &iter, print_data->sel_start);
1184 }
1185
1186 open_attrs = NULL;
1187 do {
1188 gboolean fg_set, bg_set, under_set, strike_set, weight_set;
1189 GSList *tags, *tag_walk;
1190 GtkTextTag *tag;
1191 GdkColor *color = NULL;
1192 PangoUnderline underline;
1193 gboolean strikethrough;
1194 gint weight;
1195 GdkPixbuf *image;
1196
1197 if (prefs_common.print_imgs && (image = gtk_text_iter_get_pixbuf(&iter)) != NULL) {
1198 PangoRectangle rect = {0, 0, 0, 0};
1199 gint startpos = printing_text_iter_get_offset_bytes(print_data, &iter);
1200 gint h = gdk_pixbuf_get_height(image);
1201 gint w = gdk_pixbuf_get_width(image);
1202 gint a_h = gtk_print_context_get_height(context);
1203 gint a_w = gtk_print_context_get_width(context);
1204 gint r_h, r_w;
1205 GdkPixbuf *scaled = NULL;
1206 image_viewer_get_resized_size(w, h, a_w, a_h, &r_w, &r_h);
1207 rect.x = 0;
1208 rect.y = 0;
1209 rect.width = r_w * PANGO_SCALE;
1210 rect.height = r_h * PANGO_SCALE;
1211
1212 scaled = gdk_pixbuf_scale_simple(image, r_w, r_h, GDK_INTERP_BILINEAR);
1213 attr = pango_attr_shape_new_with_data (&rect, &rect,
1214 scaled, NULL, NULL);
1215 attr->start_index = startpos;
1216 attr->end_index = startpos+1;
1217 pango_attr_list_insert(attr_list, attr);
1218 g_hash_table_insert(print_data->images, GINT_TO_POINTER(startpos), attr);
1219 print_data->img_cnt++;
1220 }
1221
1222 if (gtk_text_iter_ends_tag(&iter, NULL)) {
1223 PangoAttrColor *attr_color;
1224 PangoAttrInt *attr_int;
1225
1226 tags = gtk_text_iter_get_toggled_tags(&iter, FALSE);
1227 for (tag_walk = tags; tag_walk != NULL; tag_walk = tag_walk->next) {
1228 gboolean found;
1229
1230 tag = GTK_TEXT_TAG(tag_walk->data);
1231 g_object_get(G_OBJECT(tag),
1232 "background-set", &bg_set,
1233 "foreground-set", &fg_set,
1234 "underline-set",&under_set,
1235 "strikethrough-set", &strike_set,
1236 "weight-set", &weight_set,
1237 NULL);
1238
1239 if (fg_set) {
1240 found = FALSE;
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_FOREGROUND) {
1245 attr_color = (PangoAttrColor*) attr;
1246 g_object_get(G_OBJECT(tag), "foreground_gdk",
1247 &color, NULL);
1248 if (color &&
1249 printing_is_pango_gdk_color_equal(&(attr_color->color),
1250 color)) {
1251 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1252 pango_attr_list_insert(attr_list, attr);
1253 found = TRUE;
1254 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1255 break;
1256 }
1257 if (color)
1258 gdk_color_free(color);
1259 }
1260 }
1261 if (!found)
1262 debug_print("Error generating attribute list.\n");
1263 }
1264
1265 if (bg_set) {
1266 found = FALSE;
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_BACKGROUND) {
1271 attr_color = (PangoAttrColor*) attr;
1272 g_object_get(G_OBJECT(tag), "background-gdk",
1273 &color, NULL);
1274 if (color &&
1275 printing_is_pango_gdk_color_equal(&(attr_color->color),
1276 color)) {
1277 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1278 pango_attr_list_insert(attr_list, attr);
1279 found = TRUE;
1280 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1281 break;
1282 }
1283 if (color)
1284 gdk_color_free(color);
1285 }
1286 }
1287 if (!found)
1288 debug_print("Error generating attribute list.\n");
1289 }
1290
1291 if (under_set) {
1292 found = FALSE;
1293 for (attr_walk = open_attrs; attr_walk != NULL;
1294 attr_walk = attr_walk->next) {
1295 attr = (PangoAttribute*)attr_walk->data;
1296 if (attr->klass->type == PANGO_ATTR_UNDERLINE) {
1297 attr_int = (PangoAttrInt*)attr;
1298 g_object_get(G_OBJECT(tag), "underline",
1299 &underline, NULL);
1300 if (attr_int->value == underline) {
1301 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1302 pango_attr_list_insert(attr_list, attr);
1303 found = TRUE;
1304 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1305 break;
1306 }
1307 }
1308 }
1309 if (!found)
1310 debug_print("Error generating attribute list.\n");
1311 }
1312
1313 if (strike_set) {
1314 found = FALSE;
1315 for (attr_walk = open_attrs; attr_walk != NULL;
1316 attr_walk = attr_walk->next) {
1317 attr = (PangoAttribute*)attr_walk->data;
1318 if (attr->klass->type == PANGO_ATTR_STRIKETHROUGH) {
1319 attr_int = (PangoAttrInt*)attr;
1320 g_object_get(G_OBJECT(tag), "strikethrough",
1321 &strikethrough, NULL);
1322 if (attr_int->value == strikethrough) {
1323 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1324 pango_attr_list_insert(attr_list, attr);
1325 found = TRUE;
1326 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1327 break;
1328 }
1329 }
1330 }
1331 if (!found)
1332 debug_print("Error generating attribute list.\n");
1333 }
1334
1335 if (weight_set) {
1336 found = FALSE;
1337 for (attr_walk = open_attrs; attr_walk != NULL;
1338 attr_walk = attr_walk->next) {
1339 attr = (PangoAttribute*)attr_walk->data;
1340 if (attr->klass->type == PANGO_ATTR_WEIGHT) {
1341 attr_int = (PangoAttrInt*)attr;
1342 g_object_get(G_OBJECT(tag), "weight", &weight, NULL);
1343 if (attr_int->value == weight) {
1344 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1345 pango_attr_list_insert(attr_list, attr);
1346 found = TRUE;
1347 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1348 break;
1349 }
1350 }
1351 }
1352 if (!found)
1353 debug_print("Error generating attribute list.\n");
1354 }
1355 }
1356 g_slist_free(tags);
1357 }
1358
1359 if (gtk_text_iter_begins_tag(&iter, NULL)) {
1360 tags = gtk_text_iter_get_toggled_tags(&iter, TRUE);
1361 /* Sometimes, an iter has several weights. Use only the first in this case */
1362 gboolean weight_set_for_this_iter;
1363 weight_set_for_this_iter = FALSE;
1364 for (tag_walk = tags; tag_walk != NULL; tag_walk = tag_walk->next) {
1365 tag = GTK_TEXT_TAG(tag_walk->data);
1366 g_object_get(G_OBJECT(tag),
1367 "background-set", &bg_set,
1368 "foreground-set", &fg_set,
1369 "underline-set", &under_set,
1370 "strikethrough-set", &strike_set,
1371 "weight-set", &weight_set,
1372 NULL);
1373 if (fg_set) {
1374 g_object_get(G_OBJECT(tag), "foreground-gdk", &color, NULL);
1375 attr = pango_attr_foreground_new(color->red,color->green,color->blue);
1376 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1377 open_attrs = g_slist_prepend(open_attrs, attr);
1378 }
1379 if (bg_set) {
1380 g_object_get(G_OBJECT(tag), "background-gdk", &color, NULL);
1381 attr = pango_attr_background_new(color->red,color->green,color->blue);
1382 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1383 open_attrs = g_slist_prepend(open_attrs, attr);
1384 }
1385 if (under_set) {
1386 g_object_get(G_OBJECT(tag), "underline", &underline, NULL);
1387 attr = pango_attr_underline_new(underline);
1388 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1389 open_attrs = g_slist_prepend(open_attrs, attr);
1390 }
1391 if (strike_set) {
1392 g_object_get(G_OBJECT(tag), "strikethrough", &strikethrough, NULL);
1393 attr = pango_attr_strikethrough_new(strikethrough);
1394 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1395 open_attrs = g_slist_prepend(open_attrs, attr);
1396 }
1397 if (weight_set && !weight_set_for_this_iter) {
1398 weight_set_for_this_iter = TRUE;
1399 g_object_get(G_OBJECT(tag), "weight", &weight, NULL);
1400 attr = pango_attr_weight_new(weight);
1401 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1402 open_attrs = g_slist_prepend(open_attrs, attr);
1403 /* Hack to see if the first char is bold -- indicates header */
1404 if (attr->start_index == 0 && weight == PANGO_WEIGHT_BOLD) {
1405 *has_headers = TRUE;
1406 }
1407 }
1408 }
1409 g_slist_free(tags);
1410 }
1411
1412 } while(!gtk_text_iter_is_end(&iter) && gtk_text_iter_forward_to_tag_toggle(&iter, NULL));
1413
1414 /* close all open attributes */
1415 for (attr_walk = open_attrs; attr_walk != NULL; attr_walk = attr_walk->next) {
1416 attr = (PangoAttribute*) attr_walk->data;
1417 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1418 pango_attr_list_insert(attr_list, attr);
1419 }
1420 g_slist_free(open_attrs);
1421
1422 pango_layout_set_attributes(print_data->layout, attr_list);
1423 pango_attr_list_unref(attr_list);
1424 }
1425
1426 static gboolean printing_is_pango_gdk_color_equal(PangoColor *p, GdkColor *g)
1427 {
1428 return ((p->red == g->red) && (p->green == g->green) && (p->blue == g->blue));
1429 }
1430
1431 /* Pango has it's attribute in bytes, but GtkTextIter gets only an offset
1432 * in characters, so here we're returning an offset in bytes.
1433 */
1434 static gint printing_text_iter_get_offset_bytes(PrintData *print_data, const GtkTextIter *iter)
1435 {
1436 gint off_bytes;
1437 gchar *text;
1438 GtkTextIter start;
1439
1440 if (print_data->sel_start < 0 || print_data->sel_end <= print_data->sel_start) {
1441 gtk_text_buffer_get_start_iter(gtk_text_iter_get_buffer(iter), &start);
1442 } else {
1443 gtk_text_buffer_get_iter_at_offset(gtk_text_iter_get_buffer(iter), &start, print_data->sel_start);
1444 }
1445 text = gtk_text_iter_get_text(&start, iter);
1446 off_bytes = strlen(text);
1447 g_free(text);
1448 return off_bytes;
1449 }
1450
1451 static void printing_preview_update_zoom_sensitivity(PreviewData *preview_data)
1452 {
1453 if((preview_data->print_data->zoom * PREVIEW_ZOOM_FAC) > PREVIEW_ZOOM_MAX)
1454 gtk_widget_set_sensitive(preview_data->zoom_in, FALSE);
1455 else
1456 gtk_widget_set_sensitive(preview_data->zoom_in, TRUE);
1457
1458 if ((preview_data->print_data->zoom / PREVIEW_ZOOM_FAC) < PREVIEW_ZOOM_MIN)
1459 gtk_widget_set_sensitive(preview_data->zoom_out, FALSE);
1460 else
1461 gtk_widget_set_sensitive(preview_data->zoom_out, TRUE);
1462 }