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remove unnecessary cm_return_val_if_fail()
[claws.git] / src / printing.c
blobd0d3d97ef90eed9d41e44fc92bfa25f7a6b8a36c
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 static gboolean cb_preview_expose(GtkWidget*, GdkEventExpose*, gpointer);
97 static void cb_preview_got_page_size(GtkPrintOperationPreview*,
98 GtkPrintContext*,
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*,
110 GtkPrintContext*,
111 gint,GtkPageSetup*,gpointer);
112
113 static void printing_preview_update_zoom_sensitivity(PreviewData*);
114
115 /* variables */
116 static GtkPrintSettings *settings = NULL;
117 static GtkPageSetup *page_setup = NULL;
118
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*);
123
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
130
131 static void free_pixbuf(gpointer key, gpointer value, gpointer data)
132 {
133 PangoAttrShape *attr = (PangoAttrShape *) value;
134 g_object_unref(G_OBJECT(attr->data));
135 }
136
137 gpointer printing_get_renderer_data(PrintData *print_data)
138 {
139 if (!print_data)
140 return NULL;
141 return print_data->renderer_data;
142 }
143
144 gdouble printing_get_zoom(PrintData *print_data)
145 {
146 if (!print_data)
147 return 1.0;
148 return print_data->zoom;
149 }
150
151 void printing_set_n_pages(PrintData *print_data, gint n_pages)
152 {
153 if (!print_data)
154 return;
155 print_data->npages = n_pages;
156 }
157
158 GtkPrintSettings *printing_get_settings(void)
159 {
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);
166 }
167 return settings;
168 }
169
170 void printing_store_settings(GtkPrintSettings *new_settings)
171 {
172 if (settings != NULL)
173 g_object_unref(settings);
174
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);
180 }
181
182 GtkPageSetup *printing_get_page_setup(void)
183 {
184 if (page_setup == NULL) {
185 gboolean read_from_file;
186 char *page_setup_filename;
187 GKeyFile *keyfile;
188 gboolean key_file_read;
189
190 page_setup = gtk_page_setup_new();
191
192 read_from_file = FALSE;
193
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,
199 0, NULL);
200 g_free(page_setup_filename);
201
202 if (key_file_read)
203 read_from_file = gtk_page_setup_load_key_file(page_setup, keyfile,
204 NULL, NULL);
205 g_key_file_free(keyfile);
206
207 if (read_from_file) {
208 debug_print("Printing: Read page setup from key file\n");
209 } else {
210 debug_print("Printing: Could not read page setup from key file\n");
211 }
212
213 /* if reading from file did not work, or has not been tried (GTK+ < 2.14), use prefs */
214 if (!read_from_file) {
215 /* paper size */
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);
221 }
222 /* orientation */
223 gtk_page_setup_set_orientation(page_setup,
224 prefs_common.print_paper_orientation);
225 /* margins */
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);
242 }
243 }
244 return page_setup;
245 }
246
247 void printing_print_full(GtkWindow *parent, PrintRenderer *renderer, gpointer renderer_data,
248 gint sel_start, gint sel_end, GtkImage *avatar)
249 {
250 GtkPrintOperation *op;
251 GtkPrintOperationResult res;
252 PrintData *print_data;
253
254 op = gtk_print_operation_new();
255
256 print_data = g_new0(PrintData,1);
257
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);
263
264 print_data->zoom = 1.;
265
266 print_data->images = g_hash_table_new(g_direct_hash, g_direct_equal);
267
268 print_data->pango_context = renderer->get_pango_context(renderer_data);
269
270 print_data->to_print = renderer->get_data_to_print(renderer_data, sel_start, sel_end);
271
272 printing_get_settings();
273 printing_get_page_setup();
274
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);
280 /* signals */
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);
284
285 /* Start printing process */
286 res = gtk_print_operation_run(op, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
287 parent, NULL);
288
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));
297 }
298
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);
308
309 g_free(print_data);
310
311 g_object_unref(op);
312 debug_print("printing_print finished\n");
313 }
314
315 static PangoContext *printing_textview_get_pango_context(gpointer data)
316 {
317 return gtk_widget_get_pango_context(GTK_WIDGET(data));
318 }
319
320 static gpointer printing_textview_get_data_to_print(gpointer data, gint sel_start, gint sel_end)
321 {
322 GtkTextView *text_view = GTK_TEXT_VIEW(data);
323 GtkTextBuffer *buffer = gtk_text_view_get_buffer(text_view);
324 GtkTextIter start, end;
325
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);
329 } else {
330 gtk_text_buffer_get_iter_at_offset(buffer, &start, sel_start);
331 gtk_text_buffer_get_iter_at_offset(buffer, &end, sel_end);
332 }
333
334 return gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
335 }
336
337 void printing_print(GtkTextView *text_view, GtkWindow *parent, gint sel_start, gint sel_end, GtkImage *avatar)
338 {
339 PrintRenderer *textview_renderer = g_new0(PrintRenderer, 1);
340
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;
345
346 printing_print_full(parent, textview_renderer, text_view, sel_start, sel_end, avatar);
347
348 g_free(textview_renderer);
349 }
350
351 void printing_page_setup(GtkWindow *parent)
352 {
353 GtkPageSetup *new_page_setup;
354 char *keyfile;
355
356 keyfile = NULL;
357
358 printing_get_settings();
359 printing_get_page_setup();
360
361 new_page_setup = gtk_print_run_page_setup_dialog(parent,page_setup,settings);
362
363 if (page_setup)
364 g_object_unref(page_setup);
365
366 page_setup = new_page_setup;
367
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));
381
382 /* save to file */
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);
387 }
388 g_free(keyfile);
389 }
390
391 static gboolean cb_preview(GtkPrintOperation *operation,
392 GtkPrintOperationPreview *preview,
393 GtkPrintContext *context,
394 GtkWindow *parent,
395 gpointer data)
396 {
397 PrintData *print_data;
398 cairo_t *cr;
399 PreviewData *preview_data;
400 GtkWidget *vbox;
401 GtkWidget *toolbar;
402 GtkWidget *da;
403 GtkWidget *sw;
404 GtkWidget *page;
405 GtkToolItem *separator;
406 static GdkGeometry geometry;
407 GtkWidget *dialog = NULL;
408 GtkWidget *statusbar = gtk_hbox_new(2, FALSE);
409
410 debug_print("Creating internal print preview\n");
411
412 print_data = (PrintData*) data;
413
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;
418
419 /* Window */
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;
425 }
426 gtk_window_set_type_hint(GTK_WINDOW(dialog), GDK_WINDOW_TYPE_HINT_DIALOG);
427 gtk_window_set_geometry_hints(GTK_WINDOW(dialog), NULL, &geometry,
428 GDK_HINT_MIN_SIZE);
429 gtk_widget_set_size_request(dialog, prefs_common.print_previewwin_width,
430 prefs_common.print_previewwin_height);
431 gtk_window_set_title(GTK_WINDOW(dialog), _("Print preview"));
432
433 /* vbox */
434 vbox = gtk_vbox_new(FALSE, 0);
435 gtk_container_add(GTK_CONTAINER(dialog), vbox);
436
437 /* toolbar */
438 toolbar = gtk_toolbar_new();
439 gtk_orientable_set_orientation(GTK_ORIENTABLE(toolbar), GTK_ORIENTATION_HORIZONTAL);
440
441 switch (prefs_common.toolbar_style) {
442 case TOOLBAR_ICON:
443 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_ICONS);
444 break;
445 case TOOLBAR_TEXT:
446 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_TEXT);
447 break;
448 case TOOLBAR_BOTH_HORIZ:
449 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_BOTH_HORIZ);
450 break;
451 case TOOLBAR_BOTH:
452 default:
453 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_BOTH);
454 }
455 gtk_toolbar_set_show_arrow(GTK_TOOLBAR(toolbar), TRUE);
456
457 gtk_box_pack_start(GTK_BOX(vbox), toolbar, FALSE, FALSE, 0);
458
459 #define CLAWS_SET_TOOL_ITEM_TIP(widget,tip) { \
460 gtk_tool_item_set_tooltip_text(GTK_TOOL_ITEM(widget), tip); \
461 }
462
463 #define TOOLBAR_ITEM(item,text,tooltip,cb,cbdata) { \
464 item = GTK_WIDGET(gtk_tool_button_new_from_stock(text)); \
465 gtk_tool_item_set_homogeneous(GTK_TOOL_ITEM(item), FALSE); \
466 gtk_tool_item_set_is_important(GTK_TOOL_ITEM(item), TRUE); \
467 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(item), -1); \
468 g_signal_connect (G_OBJECT(item), "clicked", G_CALLBACK(cb), cbdata); \
469 CLAWS_SET_TOOL_ITEM_TIP(GTK_TOOL_ITEM(item), \
470 tooltip); \
471 }
472
473 TOOLBAR_ITEM(preview_data->first, GTK_STOCK_GOTO_FIRST,
474 _("First page"), cb_preview_go_first, preview_data);
475 TOOLBAR_ITEM(preview_data->previous, GTK_STOCK_GO_BACK,
476 _("Previous page"), cb_preview_go_previous, preview_data);
477
478 page = gtk_label_new("");
479 preview_data->page_nr_label = page;
480
481 TOOLBAR_ITEM(preview_data->next, GTK_STOCK_GO_FORWARD,
482 _("Next page"), cb_preview_go_next, preview_data);
483 TOOLBAR_ITEM(preview_data->last, GTK_STOCK_GOTO_LAST,
484 _("Last page"), cb_preview_go_last, preview_data);
485
486 separator = gtk_separator_tool_item_new();
487 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(separator), -1);
488
489 TOOLBAR_ITEM(preview_data->zoom_100, GTK_STOCK_ZOOM_100,
490 _("Zoom 100%"), cb_preview_zoom_100, preview_data);
491 TOOLBAR_ITEM(preview_data->zoom_fit, GTK_STOCK_ZOOM_FIT,
492 _("Zoom fit"), cb_preview_zoom_fit, preview_data);
493 TOOLBAR_ITEM(preview_data->zoom_in, GTK_STOCK_ZOOM_IN,
494 _("Zoom in"), cb_preview_zoom_in, preview_data);
495 TOOLBAR_ITEM(preview_data->zoom_out, GTK_STOCK_ZOOM_OUT,
496 _("Zoom out"), cb_preview_zoom_out, preview_data);
497
498 separator = gtk_separator_tool_item_new();
499 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(separator), -1);
500
501 /* tooltip has to be NULL else it triggers an expose_event */
502 TOOLBAR_ITEM(preview_data->close, GTK_STOCK_CLOSE, NULL,
503 cb_preview_btn_close, preview_data);
504
505 gtk_widget_show(statusbar);
506 gtk_box_pack_start(GTK_BOX(vbox), statusbar, FALSE, FALSE, 0);
507 gtk_box_pack_start(GTK_BOX(statusbar), page, FALSE, FALSE, 0);
508 /* Drawing area */
509 sw = gtk_scrolled_window_new(NULL, NULL);
510 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw),
511 GTK_POLICY_AUTOMATIC,
512 GTK_POLICY_AUTOMATIC);
513 gtk_box_pack_start(GTK_BOX(vbox), sw, TRUE, TRUE, 0);
514 da = gtk_drawing_area_new();
515 gtk_widget_set_double_buffered(da, FALSE);
516 gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(sw),
517 da);
518 gtk_widget_realize(da);
519 preview_data->scrolled_window = sw;
520 preview_data->area = da;
521
522 /* cairo context */
523 cr = gdk_cairo_create(gtk_widget_get_window(da));
524 gtk_print_context_set_cairo_context(context, cr, PREVIEW_SCALE, PREVIEW_SCALE);
525 cairo_destroy(cr);
526
527 /* signals */
528 g_signal_connect(dialog, "key_press_event",
529 G_CALLBACK(cb_preview_close), preview_data);
530 g_signal_connect(dialog, "size_allocate",
531 G_CALLBACK(cb_preview_size_allocate), NULL);
532 g_signal_connect(dialog, "destroy",G_CALLBACK(cb_preview_destroy),
533 preview_data);
534 g_signal_connect(preview, "ready", G_CALLBACK(cb_preview_ready),
535 preview_data);
536 g_signal_connect(preview, "got-page-size",
537 G_CALLBACK(cb_preview_got_page_size), preview_data);
538
539 g_signal_connect(operation, "request-page-setup",
540 G_CALLBACK(cb_preview_request_page_setup), preview_data);
541
542 gtk_widget_show_all(dialog);
543 return TRUE;
544 }
545
546 static void cb_preview_destroy(GtkWindow *window, gpointer data)
547 {
548 PreviewData *preview_data;
549 preview_data = (PreviewData*) data;
550
551 if (preview_data->rendering)
552 return;
553 debug_print("Preview window destroyed\n");
554
555 gtk_print_operation_preview_end_preview(preview_data->preview);
556 g_object_unref(preview_data->op);
557 g_list_free(preview_data->pages_to_print);
558
559 g_free(preview_data);
560 }
561
562 static gboolean cb_preview_close(GtkWidget *widget, GdkEventAny *event,
563 gpointer data)
564 {
565 PreviewData *preview_data = (PreviewData *)data;
566 if (event->type == GDK_KEY_PRESS)
567 if (((GdkEventKey *)event)->keyval != GDK_KEY_Escape)
568 return FALSE;
569 if (preview_data->rendering)
570 return FALSE;
571 gtk_widget_destroy(widget);
572 return FALSE;
573 }
574
575 static void cb_preview_size_allocate(GtkWidget *widget,
576 GtkAllocation *allocation)
577 {
578 cm_return_if_fail(allocation != NULL);
579
580 prefs_common.print_previewwin_width = allocation->width;
581 prefs_common.print_previewwin_height = allocation->height;
582 }
583
584 static void cb_preview_ready(GtkPrintOperationPreview *preview,
585 GtkPrintContext *context,
586 gpointer data)
587 {
588 PreviewData *preview_data;
589 gint iPage;
590 preview_data = (PreviewData*) data;
591 debug_print("preview_ready %d\n", preview_data->print_data->npages);
592
593 for (iPage = 0; iPage < (preview_data->print_data->npages); iPage++) {
594 if (gtk_print_operation_preview_is_selected(preview_data->preview, iPage)) {
595 preview_data->pages_to_print =
596 g_list_prepend(preview_data->pages_to_print,
597 GINT_TO_POINTER(iPage));
598 debug_print("want to print page %d\n",iPage+1);
599 }
600 }
601
602 preview_data->pages_to_print = g_list_reverse(preview_data->pages_to_print);
603 preview_data->current_page = preview_data->pages_to_print;
604 preview_data->context = context;
605
606 g_signal_connect(preview_data->area, "expose_event",
607 G_CALLBACK(cb_preview_expose),
608 preview_data);
609
610 gtk_widget_queue_draw(preview_data->area);
611 }
612
613 static void cb_preview_got_page_size(GtkPrintOperationPreview *preview,
614 GtkPrintContext *context,
615 GtkPageSetup *page_setup,
616 gpointer data)
617 {
618 PreviewData *preview_data;
619 GtkPaperSize *paper_size;
620 gint paper_width;
621 gint paper_height;
622
623 preview_data = (PreviewData*) data;
624 debug_print("got_page_size\n");
625 paper_size = gtk_page_setup_get_paper_size(page_setup);
626 paper_width = (gint)(gtk_paper_size_get_width(paper_size, GTK_UNIT_INCH)
627 * PREVIEW_SCALE);
628 paper_height = (gint)(gtk_paper_size_get_height(paper_size, GTK_UNIT_INCH)
629 * PREVIEW_SCALE);
630
631 preview_data->page_width = paper_width;
632 preview_data->page_height = paper_height;
633
634 debug_print("w/h %d/%d\n", paper_width, paper_height);
635 gtk_widget_set_size_request(GTK_WIDGET(preview_data->area),
636 paper_width, paper_height);
637 }
638
639 static gboolean cb_preview_expose(GtkWidget *widget, GdkEventExpose *event,
640 gpointer data)
641 {
642 PreviewData *preview_data = data;
643 cairo_t *cr;
644
645 debug_print("preview_expose (current %p)\n", preview_data->current_page);
646
647 cr = gdk_cairo_create(gtk_widget_get_window(preview_data->area));
648
649 /* background */
650 cairo_set_source_rgb(cr, 0.5, 0.5, 0.5);
651 cairo_rectangle(cr, event->area.x, event->area.y, event->area.width, event->area.height);
652 cairo_fill(cr);
653
654 /* shadow */
655 cairo_set_source_rgb(cr, 0., 0., 0.);
656 cairo_rectangle(cr, PREVIEW_SHADOW_OFFSET, PREVIEW_SHADOW_OFFSET,
657 preview_data->page_width+PREVIEW_SHADOW_OFFSET,
658 preview_data->page_height+PREVIEW_SHADOW_OFFSET);
659 cairo_fill(cr);
660
661 /* paper */
662 cairo_set_source_rgb(cr, 1., 1., 1.);
663 cairo_rectangle(cr, 0, 0,
664 preview_data->page_width,
665 preview_data->page_height);
666 cairo_fill(cr);
667
668 gtk_print_context_set_cairo_context(preview_data->context, cr, PREVIEW_SCALE, PREVIEW_SCALE);
669 cairo_destroy(cr);
670
671 if (preview_data->current_page) {
672 preview_data->rendering = TRUE;
673 gtk_widget_set_sensitive(preview_data->close, FALSE);
674 int cur = GPOINTER_TO_INT(preview_data->current_page->data);
675 gchar *str;
676 str = g_strdup_printf(_("Page %d"), cur+1);
677 gtk_label_set_text(GTK_LABEL(preview_data->page_nr_label), str);
678 g_free(str);
679 gtk_print_operation_preview_render_page(preview_data->preview,
680 GPOINTER_TO_INT
681 (preview_data->current_page->data));
682
683 gtk_widget_set_sensitive(preview_data->first,
684 preview_data->current_page->prev != NULL);
685 gtk_widget_set_sensitive(preview_data->previous,
686 preview_data->current_page->prev != NULL);
687 gtk_widget_set_sensitive(preview_data->next,
688 preview_data->current_page->next != NULL);
689 gtk_widget_set_sensitive(preview_data->last,
690 preview_data->current_page->next != NULL);
691 gtk_widget_set_sensitive(preview_data->close, TRUE);
692 preview_data->rendering = FALSE;
693 }
694 return TRUE;
695 }
696
697 static void cb_preview_go_first(GtkButton *button, gpointer data)
698 {
699 PreviewData *preview_data = (PreviewData*) data;
700 preview_data->current_page = preview_data->pages_to_print;
701 gtk_widget_queue_draw(preview_data->area);
702 }
703
704 static void cb_preview_go_previous(GtkButton *button, gpointer data)
705 {
706 GList *next;
707 PreviewData *preview_data = (PreviewData*) data;
708 next = g_list_previous(preview_data->current_page);
709 if (next)
710 preview_data->current_page = next;
711 gtk_widget_queue_draw(preview_data->area);
712 }
713
714 static void cb_preview_go_next(GtkButton *button, gpointer data)
715 {
716 GList *next;
717 PreviewData *preview_data = (PreviewData*) data;
718 next = g_list_next(preview_data->current_page);
719 if (next)
720 preview_data->current_page = next;
721 gtk_widget_queue_draw(preview_data->area);
722 }
723
724 static void cb_preview_go_last(GtkButton *button, gpointer data)
725 {
726 PreviewData *preview_data = (PreviewData*) data;
727 preview_data->current_page = g_list_last(preview_data->current_page);
728 gtk_widget_queue_draw(preview_data->area);
729 }
730
731 static void cb_preview_btn_close(GtkButton *button, gpointer data)
732 {
733 PreviewData *preview_data = (PreviewData *)data;
734 if (preview_data->rendering)
735 return;
736 gtk_widget_destroy(preview_data->dialog);
737 }
738
739 static void cb_preview_zoom_100(GtkButton *button, gpointer data)
740 {
741 PreviewData *preview_data = (PreviewData*) data;
742 if (preview_data->print_data->zoom != 1.) {
743 preview_data->print_data->zoom = 1.;
744 gtk_widget_queue_draw(preview_data->area);
745 printing_preview_update_zoom_sensitivity(preview_data);
746 }
747 }
748
749 static void cb_preview_zoom_fit(GtkButton *button, gpointer data)
750 {
751 PreviewData *preview_data = (PreviewData*) data;
752 GtkAllocation allocation;
753 gdouble zoom_w;
754 gdouble zoom_h;
755
756 gtk_widget_get_allocation(preview_data->scrolled_window, &allocation);
757 zoom_w = ((gdouble)allocation.width) /
758 ((gdouble)preview_data->page_width/preview_data->print_data->zoom +
759 PREVIEW_SHADOW_OFFSET);
760 zoom_h = ((gdouble)allocation.height) /
761 ((gdouble)preview_data->page_height/preview_data->print_data->zoom +
762 PREVIEW_SHADOW_OFFSET);
763
764 preview_data->print_data->zoom = MIN(zoom_w,zoom_h) - 0.01;
765
766 if (preview_data->print_data->zoom > PREVIEW_ZOOM_MAX)
767 preview_data->print_data->zoom = PREVIEW_ZOOM_MAX;
768 else if (preview_data->print_data->zoom < PREVIEW_ZOOM_MIN)
769 preview_data->print_data->zoom = PREVIEW_ZOOM_MIN;
770
771 printing_preview_update_zoom_sensitivity(preview_data);
772 gtk_widget_queue_draw(preview_data->area);
773 }
774
775 static void cb_preview_zoom_in(GtkButton *button, gpointer data)
776 {
777 PreviewData *preview_data = (PreviewData*) data;
778 gdouble new_zoom;
779 new_zoom = preview_data->print_data->zoom * PREVIEW_ZOOM_FAC;
780 if (new_zoom <= PREVIEW_ZOOM_MAX) {
781 preview_data->print_data->zoom = new_zoom;
782 printing_preview_update_zoom_sensitivity(preview_data);
783 gtk_widget_queue_draw(preview_data->area);
784 }
785 }
786
787 static void cb_preview_zoom_out(GtkButton *button, gpointer data)
788 {
789 PreviewData *preview_data = (PreviewData*) data;
790 gdouble new_zoom;
791 new_zoom = preview_data->print_data->zoom / PREVIEW_ZOOM_FAC;
792 if (new_zoom >= PREVIEW_ZOOM_MIN) {
793 preview_data->print_data->zoom = new_zoom;
794 printing_preview_update_zoom_sensitivity(preview_data);
795 gtk_widget_queue_draw(preview_data->area);
796 }
797 }
798
799 static void cb_preview_request_page_setup(GtkPrintOperation *op,
800 GtkPrintContext *context,
801 gint page_nr,
802 GtkPageSetup *setup,gpointer data)
803 {
804 GtkPaperSize *paper_size;
805 GtkPaperSize *old_size;
806 gdouble width;
807 gdouble height;
808 gdouble top_margin;
809 gdouble bottom_margin;
810 gdouble left_margin;
811 gdouble right_margin;
812
813 PreviewData *preview_data = (PreviewData*) data;
814
815 old_size = gtk_page_setup_get_paper_size(setup);
816 width = gtk_paper_size_get_width(old_size,GTK_UNIT_INCH);
817 height = gtk_paper_size_get_height(old_size,GTK_UNIT_INCH);
818
819 top_margin = gtk_page_setup_get_top_margin(setup,GTK_UNIT_INCH);
820 bottom_margin = gtk_page_setup_get_bottom_margin(setup,GTK_UNIT_INCH);
821 left_margin = gtk_page_setup_get_left_margin(setup,GTK_UNIT_INCH);
822 right_margin = gtk_page_setup_get_right_margin(setup,GTK_UNIT_INCH);
823
824 paper_size = gtk_paper_size_new_custom("preview paper", "preview_paper",
825 width*preview_data->print_data->zoom,
826 height*preview_data->print_data->zoom,
827 GTK_UNIT_INCH);
828 gtk_page_setup_set_paper_size(setup, paper_size);
829 gtk_paper_size_free(paper_size);
830
831 gtk_page_setup_set_top_margin(setup,top_margin*preview_data->print_data->zoom,
832 GTK_UNIT_INCH);
833 gtk_page_setup_set_bottom_margin(setup,bottom_margin*preview_data->print_data->zoom,
834 GTK_UNIT_INCH);
835 gtk_page_setup_set_left_margin(setup,left_margin*preview_data->print_data->zoom,
836 GTK_UNIT_INCH);
837 gtk_page_setup_set_right_margin(setup,right_margin*preview_data->print_data->zoom,
838 GTK_UNIT_INCH);
839 }
840
841 static void printing_textview_cb_begin_print(GtkPrintOperation *op, GtkPrintContext *context,
842 gpointer user_data)
843 {
844 double width, height;
845 int num_lines;
846 double page_height;
847 GList *page_breaks;
848 PrintData *print_data;
849 PangoFontDescription *desc;
850 int start, ii;
851 PangoLayoutIter *iter;
852 gint header_end_pos;
853 gint num_header_lines;
854 gint dummy;
855 gboolean header_done;
856 gboolean has_headers = FALSE;
857 const gchar *text;
858 double line_height =0.;
859
860 print_data = (PrintData*) user_data;
861
862 debug_print("Preparing print job...\n");
863
864 width = gtk_print_context_get_width(context);
865 height = gtk_print_context_get_height(context);
866
867 if (print_data->layout == NULL)
868 print_data->layout = gtk_print_context_create_pango_layout(context);
869
870 if (prefs_common.use_different_print_font)
871 desc = pango_font_description_from_string(prefs_common.printfont);
872 else
873 desc = pango_font_description_copy(
874 pango_context_get_font_description(print_data->pango_context));
875
876 pango_layout_set_font_description(print_data->layout, desc);
877 pango_font_description_free(desc);
878
879 pango_layout_set_width(print_data->layout, width * PANGO_SCALE);
880 pango_layout_set_text(print_data->layout, (char *)print_data->to_print, -1);
881
882 printing_layout_set_text_attributes(print_data, context, &has_headers);
883
884 num_lines = pango_layout_get_line_count(print_data->layout);
885
886 page_breaks = NULL;
887 page_height = 0;
888 start = 0;
889 ii = 0;
890 iter = pango_layout_get_iter(print_data->layout);
891
892 /* find the last character of the header */
893 header_end_pos = 0;
894 header_done = FALSE;
895 text = pango_layout_get_text(print_data->layout);
896
897 if (has_headers) {
898 if (text && *text && *text != '\n') {
899 do {
900 if (text[0] == '\n' && (text[1] != '\0') && (text[1] == '\n'))
901 header_done = TRUE;
902 else
903 header_end_pos++;
904 text++;
905 } while(*text && !header_done);
906 }
907 /* find line number for header end */
908 pango_layout_index_to_line_x(print_data->layout, header_end_pos, 1,
909 &num_header_lines, &dummy);
910 /* line count is zero-based */
911 num_header_lines++;
912 } else {
913 print_data->ypos_line = -1.0;
914 }
915
916 do {
917 PangoRectangle logical_rect;
918 PangoAttrShape *attr = NULL;
919
920 if (ii >= start) {
921 pango_layout_iter_get_line_extents(iter, NULL, &logical_rect);
922
923 if ((attr = g_hash_table_lookup(print_data->images,
924 GINT_TO_POINTER(pango_layout_iter_get_index(iter)))) != NULL) {
925 line_height = (double)gdk_pixbuf_get_height(GDK_PIXBUF(attr->data));
926 } else {
927 line_height = ((double)logical_rect.height) / PANGO_SCALE;
928 }
929 }
930 if ((page_height + line_height) > height) {
931 page_breaks = g_list_prepend(page_breaks, GINT_TO_POINTER(ii));
932 page_height = 0;
933 }
934
935 if (has_headers && ii == num_header_lines) {
936 int y0, y1;
937 pango_layout_iter_get_line_yrange(iter,&y0,&y1);
938 print_data->ypos_line = (double)y0 + 1./3.*((double)(y1 - y0))/2.;
939 }
940
941 page_height += line_height;
942 ii++;
943 } while(ii < num_lines && pango_layout_iter_next_line(iter));
944 pango_layout_iter_free(iter);
945
946 page_breaks = g_list_reverse(page_breaks);
947 print_data->npages = g_list_length(page_breaks) + 1;
948 print_data->page_breaks = page_breaks;
949
950 gtk_print_operation_set_n_pages(op, print_data->npages);
951
952 debug_print("Starting print job...\n");
953 }
954
955 static cairo_surface_t *pixbuf_to_surface(GdkPixbuf *pixbuf)
956 {
957 cairo_surface_t *surface;
958 cairo_format_t format;
959 static const cairo_user_data_key_t key;
960 guchar *pixels = g_malloc(
961 4*
962 gdk_pixbuf_get_width(pixbuf)*
963 gdk_pixbuf_get_height(pixbuf));
964 guchar *src_pixels = gdk_pixbuf_get_pixels (pixbuf);
965 gint width = gdk_pixbuf_get_width(pixbuf);
966 gint height = gdk_pixbuf_get_height(pixbuf);
967 gint nchans = gdk_pixbuf_get_n_channels (pixbuf);
968 gint stride = gdk_pixbuf_get_rowstride (pixbuf);
969 gint j;
970
971 if (nchans == 3)
972 format = CAIRO_FORMAT_RGB24;
973 else
974 format = CAIRO_FORMAT_ARGB32;
975 surface = cairo_image_surface_create_for_data (pixels,
976 format, width, height, 4*width);
977 cairo_surface_set_user_data (surface, &key,
978 pixels, (cairo_destroy_func_t)g_free);
979
980 for (j = height; j; j--) {
981 guchar *p = src_pixels;
982 guchar *q = pixels;
983
984 if (nchans == 3) {
985 guchar *end = p + 3 * width;
986
987 while (p < end) {
988 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
989 q[0] = p[2];
990 q[1] = p[1];
991 q[2] = p[0];
992 #else
993 q[1] = p[0];
994 q[2] = p[1];
995 q[3] = p[2];
996 #endif
997 p += 3;
998 q += 4;
999 }
1000 } else {
1001 guchar *end = p + 4 * width;
1002 guint t1,t2,t3;
1003
1004 #define MULT(d,c,a,t) G_STMT_START { t = c * a + 0x7f; d = ((t >> 8) + t) >> 8; } G_STMT_END
1005
1006 while (p < end) {
1007 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
1008 MULT(q[0], p[2], p[3], t1);
1009 MULT(q[1], p[1], p[3], t2);
1010 MULT(q[2], p[0], p[3], t3);
1011 q[3] = p[3];
1012 #else
1013 q[0] = p[3];
1014 MULT(q[1], p[0], p[3], t1);
1015 MULT(q[2], p[1], p[3], t2);
1016 MULT(q[3], p[2], p[3], t3);
1017 #endif
1018
1019 p += 4;
1020 q += 4;
1021 }
1022
1023 #undef MULT
1024 }
1025
1026 src_pixels += stride;
1027 pixels += 4 * width;
1028 }
1029
1030 return surface;
1031 }
1032
1033 static void printing_textview_cb_draw_page(GtkPrintOperation *op, GtkPrintContext *context,
1034 int page_nr, gpointer user_data)
1035 {
1036 cairo_t *cr;
1037 PrintData *print_data;
1038 int start, end, ii;
1039 GList *pagebreak;
1040 PangoLayoutIter *iter;
1041 double start_pos;
1042 gboolean notlast = TRUE;
1043
1044 print_data = (PrintData*) user_data;
1045
1046 if (page_nr == 0) {
1047 start = 0;
1048 } else {
1049 pagebreak = g_list_nth(print_data->page_breaks, page_nr - 1);
1050 start = GPOINTER_TO_INT(pagebreak->data);
1051 }
1052
1053 pagebreak = g_list_nth(print_data->page_breaks, page_nr);
1054 if (pagebreak == NULL)
1055 end = pango_layout_get_line_count(print_data->layout);
1056 else
1057 end = GPOINTER_TO_INT(pagebreak->data);
1058
1059 cr = gtk_print_context_get_cairo_context(context);
1060 cairo_scale(cr, print_data->zoom, print_data->zoom);
1061 cairo_set_source_rgb(cr, 0., 0., 0.);
1062
1063 ii = 0;
1064 start_pos = 0.;
1065 iter = pango_layout_get_iter(print_data->layout);
1066 do {
1067 PangoRectangle logical_rect;
1068 PangoLayoutLine *line;
1069 PangoAttrShape *attr = NULL;
1070 int baseline;
1071
1072 if (ii >= start) {
1073 line = pango_layout_iter_get_line(iter);
1074
1075 pango_layout_iter_get_line_extents(iter, NULL, &logical_rect);
1076 baseline = pango_layout_iter_get_baseline(iter);
1077
1078 if (ii == start) {
1079 start_pos = ((double)logical_rect.y) / PANGO_SCALE;
1080 }
1081 /* Draw header separator line */
1082 if (ii == 0 && print_data->ypos_line >= 0) {
1083 cairo_surface_t *surface;
1084 surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1085 gtk_print_context_get_width(context)/print_data->zoom,
1086 gtk_print_context_get_height(context)/print_data->zoom);
1087 cairo_set_line_width(cr, .5);
1088 cairo_set_source_surface(cr, surface,
1089 ((double)logical_rect.x) / PANGO_SCALE,
1090 ((double)baseline) / PANGO_SCALE - start_pos);
1091 cairo_move_to(cr, ((double)logical_rect.x) / PANGO_SCALE,
1092 (double)print_data->ypos_line / PANGO_SCALE);
1093 cairo_rel_line_to(cr, gtk_print_context_get_width(context)/print_data->zoom, 0);
1094 cairo_set_source_rgb(cr, 0., 0., 0.);
1095 cairo_stroke(cr);
1096 cairo_surface_destroy(surface);
1097 }
1098
1099 cairo_move_to(cr,
1100 ((double)logical_rect.x) / PANGO_SCALE,
1101 ((double)baseline) / PANGO_SCALE - start_pos);
1102
1103 if ((attr = g_hash_table_lookup(print_data->images,
1104 GINT_TO_POINTER(pango_layout_iter_get_index(iter)))) != NULL) {
1105 cairo_surface_t *surface;
1106
1107 surface = pixbuf_to_surface(GDK_PIXBUF(attr->data));
1108 cairo_set_source_surface (cr, surface,
1109 ((double)logical_rect.x) / PANGO_SCALE,
1110 ((double)baseline) / PANGO_SCALE - start_pos);
1111 cairo_paint (cr);
1112 cairo_surface_destroy (surface);
1113 } else {
1114 pango_cairo_show_layout_line(cr, line);
1115 }
1116 }
1117 ii++;
1118 } while(ii < end && (notlast = pango_layout_iter_next_line(iter)));
1119
1120 if (print_data->avatar && page_nr == 0) {
1121 cairo_surface_t *surface;
1122 GdkPixbuf *pixbuf = gtk_image_get_pixbuf(print_data->avatar);
1123 gdouble startx, starty;
1124
1125 if (pixbuf != NULL) {
1126 startx = gtk_print_context_get_width(context)/print_data->zoom;
1127
1128 startx -= ((double)gdk_pixbuf_get_width(pixbuf));
1129
1130 starty = start_pos;
1131
1132 surface = pixbuf_to_surface(pixbuf);
1133 cairo_set_source_surface (cr, surface, startx, starty);
1134 cairo_paint (cr);
1135 cairo_surface_destroy (surface);
1136 }
1137 }
1138
1139 pango_layout_iter_free(iter);
1140 debug_print("Sent page %d to printer\n", page_nr+1);
1141 }
1142
1143 static void printing_layout_set_text_attributes(PrintData *print_data,
1144 GtkPrintContext *context,
1145 gboolean *has_headers)
1146 {
1147 GtkTextIter iter;
1148 PangoAttrList *attr_list;
1149 PangoAttribute *attr;
1150 GSList *open_attrs, *attr_walk;
1151 GtkTextView *text_view = GTK_TEXT_VIEW(print_data->renderer_data);
1152 GtkTextBuffer *buffer = gtk_text_view_get_buffer(text_view);
1153
1154 *has_headers = FALSE;
1155
1156 attr_list = pango_attr_list_new();
1157 if (print_data->sel_start < 0 || print_data->sel_end <= print_data->sel_start) {
1158 gtk_text_buffer_get_start_iter(buffer, &iter);
1159 } else {
1160 gtk_text_buffer_get_iter_at_offset(buffer, &iter, print_data->sel_start);
1161 }
1162
1163 open_attrs = NULL;
1164 do {
1165 gboolean fg_set, bg_set, under_set, strike_set, weight_set;
1166 GSList *tags, *tag_walk;
1167 GtkTextTag *tag;
1168 GdkColor *color = NULL;
1169 PangoUnderline underline;
1170 gboolean strikethrough;
1171 gint weight;
1172 GdkPixbuf *image;
1173
1174 if (prefs_common.print_imgs && (image = gtk_text_iter_get_pixbuf(&iter)) != NULL) {
1175 PangoRectangle rect = {0, 0, 0, 0};
1176 gint startpos = printing_text_iter_get_offset_bytes(print_data, &iter);
1177 gint h = gdk_pixbuf_get_height(image);
1178 gint w = gdk_pixbuf_get_width(image);
1179 gint a_h = gtk_print_context_get_height(context);
1180 gint a_w = gtk_print_context_get_width(context);
1181 gint r_h, r_w;
1182 GdkPixbuf *scaled = NULL;
1183 image_viewer_get_resized_size(w, h, a_w, a_h, &r_w, &r_h);
1184 rect.x = 0;
1185 rect.y = 0;
1186 rect.width = r_w * PANGO_SCALE;
1187 rect.height = r_h * PANGO_SCALE;
1188
1189 scaled = gdk_pixbuf_scale_simple(image, r_w, r_h, GDK_INTERP_BILINEAR);
1190 attr = pango_attr_shape_new_with_data (&rect, &rect,
1191 scaled, NULL, NULL);
1192 attr->start_index = startpos;
1193 attr->end_index = startpos+1;
1194 pango_attr_list_insert(attr_list, attr);
1195 g_hash_table_insert(print_data->images, GINT_TO_POINTER(startpos), attr);
1196 print_data->img_cnt++;
1197 }
1198
1199 if (gtk_text_iter_ends_tag(&iter, NULL)) {
1200 PangoAttrColor *attr_color;
1201 PangoAttrInt *attr_int;
1202
1203 tags = gtk_text_iter_get_toggled_tags(&iter, FALSE);
1204 for (tag_walk = tags; tag_walk != NULL; tag_walk = tag_walk->next) {
1205 gboolean found;
1206
1207 tag = GTK_TEXT_TAG(tag_walk->data);
1208 g_object_get(G_OBJECT(tag),
1209 "background-set", &bg_set,
1210 "foreground-set", &fg_set,
1211 "underline-set",&under_set,
1212 "strikethrough-set", &strike_set,
1213 "weight-set", &weight_set,
1214 NULL);
1215
1216 if (fg_set) {
1217 found = FALSE;
1218 for (attr_walk = open_attrs; attr_walk != NULL;
1219 attr_walk = attr_walk->next) {
1220 attr = (PangoAttribute*)attr_walk->data;
1221 if (attr->klass->type == PANGO_ATTR_FOREGROUND) {
1222 attr_color = (PangoAttrColor*) attr;
1223 g_object_get(G_OBJECT(tag), "foreground_gdk",
1224 &color, NULL);
1225 if (color &&
1226 printing_is_pango_gdk_color_equal(&(attr_color->color),
1227 color)) {
1228 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1229 pango_attr_list_insert(attr_list, attr);
1230 found = TRUE;
1231 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1232 break;
1233 }
1234 if (color)
1235 gdk_color_free(color);
1236 }
1237 }
1238 if (!found)
1239 debug_print("Error generating attribute list.\n");
1240 }
1241
1242 if (bg_set) {
1243 found = FALSE;
1244 for (attr_walk = open_attrs; attr_walk != NULL;
1245 attr_walk = attr_walk->next) {
1246 attr = (PangoAttribute*)attr_walk->data;
1247 if (attr->klass->type == PANGO_ATTR_BACKGROUND) {
1248 attr_color = (PangoAttrColor*) attr;
1249 g_object_get(G_OBJECT(tag), "background-gdk",
1250 &color, NULL);
1251 if (color &&
1252 printing_is_pango_gdk_color_equal(&(attr_color->color),
1253 color)) {
1254 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1255 pango_attr_list_insert(attr_list, attr);
1256 found = TRUE;
1257 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1258 break;
1259 }
1260 if (color)
1261 gdk_color_free(color);
1262 }
1263 }
1264 if (!found)
1265 debug_print("Error generating attribute list.\n");
1266 }
1267
1268 if (under_set) {
1269 found = FALSE;
1270 for (attr_walk = open_attrs; attr_walk != NULL;
1271 attr_walk = attr_walk->next) {
1272 attr = (PangoAttribute*)attr_walk->data;
1273 if (attr->klass->type == PANGO_ATTR_UNDERLINE) {
1274 attr_int = (PangoAttrInt*)attr;
1275 g_object_get(G_OBJECT(tag), "underline",
1276 &underline, NULL);
1277 if (attr_int->value == underline) {
1278 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1279 pango_attr_list_insert(attr_list, attr);
1280 found = TRUE;
1281 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1282 break;
1283 }
1284 }
1285 }
1286 if (!found)
1287 debug_print("Error generating attribute list.\n");
1288 }
1289
1290 if (strike_set) {
1291 found = FALSE;
1292 for (attr_walk = open_attrs; attr_walk != NULL;
1293 attr_walk = attr_walk->next) {
1294 attr = (PangoAttribute*)attr_walk->data;
1295 if (attr->klass->type == PANGO_ATTR_STRIKETHROUGH) {
1296 attr_int = (PangoAttrInt*)attr;
1297 g_object_get(G_OBJECT(tag), "strikethrough",
1298 &strikethrough, NULL);
1299 if (attr_int->value == strikethrough) {
1300 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1301 pango_attr_list_insert(attr_list, attr);
1302 found = TRUE;
1303 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1304 break;
1305 }
1306 }
1307 }
1308 if (!found)
1309 debug_print("Error generating attribute list.\n");
1310 }
1311
1312 if (weight_set) {
1313 found = FALSE;
1314 for (attr_walk = open_attrs; attr_walk != NULL;
1315 attr_walk = attr_walk->next) {
1316 attr = (PangoAttribute*)attr_walk->data;
1317 if (attr->klass->type == PANGO_ATTR_WEIGHT) {
1318 attr_int = (PangoAttrInt*)attr;
1319 g_object_get(G_OBJECT(tag), "weight", &weight, NULL);
1320 if (attr_int->value == weight) {
1321 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1322 pango_attr_list_insert(attr_list, attr);
1323 found = TRUE;
1324 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1325 break;
1326 }
1327 }
1328 }
1329 if (!found)
1330 debug_print("Error generating attribute list.\n");
1331 }
1332 }
1333 g_slist_free(tags);
1334 }
1335
1336 if (gtk_text_iter_begins_tag(&iter, NULL)) {
1337 tags = gtk_text_iter_get_toggled_tags(&iter, TRUE);
1338 /* Sometimes, an iter has several weights. Use only the first in this case */
1339 gboolean weight_set_for_this_iter;
1340 weight_set_for_this_iter = FALSE;
1341 for (tag_walk = tags; tag_walk != NULL; tag_walk = tag_walk->next) {
1342 tag = GTK_TEXT_TAG(tag_walk->data);
1343 g_object_get(G_OBJECT(tag),
1344 "background-set", &bg_set,
1345 "foreground-set", &fg_set,
1346 "underline-set", &under_set,
1347 "strikethrough-set", &strike_set,
1348 "weight-set", &weight_set,
1349 NULL);
1350 if (fg_set) {
1351 g_object_get(G_OBJECT(tag), "foreground-gdk", &color, NULL);
1352 attr = pango_attr_foreground_new(color->red,color->green,color->blue);
1353 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1354 open_attrs = g_slist_prepend(open_attrs, attr);
1355 }
1356 if (bg_set) {
1357 g_object_get(G_OBJECT(tag), "background-gdk", &color, NULL);
1358 attr = pango_attr_background_new(color->red,color->green,color->blue);
1359 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1360 open_attrs = g_slist_prepend(open_attrs, attr);
1361 }
1362 if (under_set) {
1363 g_object_get(G_OBJECT(tag), "underline", &underline, NULL);
1364 attr = pango_attr_underline_new(underline);
1365 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1366 open_attrs = g_slist_prepend(open_attrs, attr);
1367 }
1368 if (strike_set) {
1369 g_object_get(G_OBJECT(tag), "strikethrough", &strikethrough, NULL);
1370 attr = pango_attr_strikethrough_new(strikethrough);
1371 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1372 open_attrs = g_slist_prepend(open_attrs, attr);
1373 }
1374 if (weight_set && !weight_set_for_this_iter) {
1375 weight_set_for_this_iter = TRUE;
1376 g_object_get(G_OBJECT(tag), "weight", &weight, NULL);
1377 attr = pango_attr_weight_new(weight);
1378 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1379 open_attrs = g_slist_prepend(open_attrs, attr);
1380 /* Hack to see if the first char is bold -- indicates header */
1381 if (attr->start_index == 0 && weight == PANGO_WEIGHT_BOLD) {
1382 *has_headers = TRUE;
1383 }
1384 }
1385 }
1386 g_slist_free(tags);
1387 }
1388
1389 } while(!gtk_text_iter_is_end(&iter) && gtk_text_iter_forward_to_tag_toggle(&iter, NULL));
1390
1391 /* close all open attributes */
1392 for (attr_walk = open_attrs; attr_walk != NULL; attr_walk = attr_walk->next) {
1393 attr = (PangoAttribute*) attr_walk->data;
1394 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1395 pango_attr_list_insert(attr_list, attr);
1396 }
1397 g_slist_free(open_attrs);
1398
1399 pango_layout_set_attributes(print_data->layout, attr_list);
1400 pango_attr_list_unref(attr_list);
1401 }
1402
1403 static gboolean printing_is_pango_gdk_color_equal(PangoColor *p, GdkColor *g)
1404 {
1405 return ((p->red == g->red) && (p->green == g->green) && (p->blue == g->blue));
1406 }
1407
1408 /* Pango has it's attribute in bytes, but GtkTextIter gets only an offset
1409 * in characters, so here we're returning an offset in bytes.
1410 */
1411 static gint printing_text_iter_get_offset_bytes(PrintData *print_data, const GtkTextIter *iter)
1412 {
1413 gint off_bytes;
1414 gchar *text;
1415 GtkTextIter start;
1416
1417 if (print_data->sel_start < 0 || print_data->sel_end <= print_data->sel_start) {
1418 gtk_text_buffer_get_start_iter(gtk_text_iter_get_buffer(iter), &start);
1419 } else {
1420 gtk_text_buffer_get_iter_at_offset(gtk_text_iter_get_buffer(iter), &start, print_data->sel_start);
1421 }
1422 text = gtk_text_iter_get_text(&start, iter);
1423 off_bytes = strlen(text);
1424 g_free(text);
1425 return off_bytes;
1426 }
1427
1428 static void printing_preview_update_zoom_sensitivity(PreviewData *preview_data)
1429 {
1430 if((preview_data->print_data->zoom * PREVIEW_ZOOM_FAC) > PREVIEW_ZOOM_MAX)
1431 gtk_widget_set_sensitive(preview_data->zoom_in, FALSE);
1432 else
1433 gtk_widget_set_sensitive(preview_data->zoom_in, TRUE);
1434
1435 if ((preview_data->print_data->zoom / PREVIEW_ZOOM_FAC) < PREVIEW_ZOOM_MIN)
1436 gtk_widget_set_sensitive(preview_data->zoom_out, FALSE);
1437 else
1438 gtk_widget_set_sensitive(preview_data->zoom_out, TRUE);
1439 }