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image viewer: don't make the 'load image' button larger than necessary
[claws.git] / src / printing.c
blob86a9faf9e725b487a3a5dc186568a0f450ec3553
1 /* Claws Mail -- a GTK based, lightweight, and fast e-mail client
2 * Copyright (C) 2007-2019 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_drawing_area(GtkWidget *widget, cairo_t *cr, gpointer data);
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_rgba_equal(PangoColor*, GdkRGBA*);
122 PangoColor* printing_pango_color_from_gdk_rgba(GdkRGBA*);
123 static gint printing_text_iter_get_offset_bytes(PrintData *, const GtkTextIter*);
124
125 #define PAGE_MARGIN_STORAGE_UNIT GTK_UNIT_MM
126 #define PREVIEW_SCALE 72
127 #define PREVIEW_SHADOW_OFFSET 3
128 #define PREVIEW_ZOOM_FAC 1.41
129 #define PREVIEW_ZOOM_MAX 10.
130 #define PREVIEW_ZOOM_MIN 0.2
131
132 static void free_pixbuf(gpointer key, gpointer value, gpointer data)
133 {
134 PangoAttrShape *attr = (PangoAttrShape *) value;
135 g_object_unref(G_OBJECT(attr->data));
136 }
137
138 gpointer printing_get_renderer_data(PrintData *print_data)
139 {
140 if (!print_data)
141 return NULL;
142 return print_data->renderer_data;
143 }
144
145 gdouble printing_get_zoom(PrintData *print_data)
146 {
147 if (!print_data)
148 return 1.0;
149 return print_data->zoom;
150 }
151
152 void printing_set_n_pages(PrintData *print_data, gint n_pages)
153 {
154 if (!print_data)
155 return;
156 print_data->npages = n_pages;
157 }
158
159 GtkPrintSettings *printing_get_settings(void)
160 {
161 if (settings == NULL) {
162 settings = gtk_print_settings_new();
163 gtk_print_settings_set_use_color(settings, prefs_common.print_use_color);
164 gtk_print_settings_set_collate(settings, prefs_common.print_use_collate);
165 gtk_print_settings_set_reverse(settings, prefs_common.print_use_reverse);
166 gtk_print_settings_set_duplex(settings, prefs_common.print_use_duplex);
167 }
168 return settings;
169 }
170
171 void printing_store_settings(GtkPrintSettings *new_settings)
172 {
173 if (settings != NULL)
174 g_object_unref(settings);
175
176 settings = g_object_ref(new_settings);
177 prefs_common.print_use_color = gtk_print_settings_get_use_color(settings);
178 prefs_common.print_use_collate = gtk_print_settings_get_collate(settings);
179 prefs_common.print_use_reverse = gtk_print_settings_get_reverse(settings);
180 prefs_common.print_use_duplex = gtk_print_settings_get_duplex(settings);
181 }
182
183 GtkPageSetup *printing_get_page_setup(void)
184 {
185 if (page_setup == NULL) {
186 gboolean read_from_file;
187 char *page_setup_filename;
188 GKeyFile *keyfile;
189 gboolean key_file_read;
190
191 page_setup = gtk_page_setup_new();
192
193 read_from_file = FALSE;
194
195 /* try reading the page setup from file */
196 page_setup_filename = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
197 PRINTING_PAGE_SETUP_STORAGE_FILE, NULL);
198 keyfile = g_key_file_new();
199 key_file_read = g_key_file_load_from_file(keyfile, page_setup_filename,
200 0, NULL);
201 g_free(page_setup_filename);
202
203 if (key_file_read)
204 read_from_file = gtk_page_setup_load_key_file(page_setup, keyfile,
205 NULL, NULL);
206 g_key_file_free(keyfile);
207
208 if (read_from_file) {
209 debug_print("Printing: Read page setup from key file\n");
210 } else {
211 debug_print("Printing: Could not read page setup from key file\n");
212 }
213
214 /* if reading from file did not work, or has not been tried (GTK+ < 2.14), use prefs */
215 if (!read_from_file) {
216 /* paper size */
217 if (prefs_common.print_paper_type &&
218 *prefs_common.print_paper_type) {
219 GtkPaperSize *paper = gtk_paper_size_new(prefs_common.print_paper_type);
220 gtk_page_setup_set_paper_size(page_setup, paper);
221 gtk_paper_size_free(paper);
222 }
223 /* orientation */
224 gtk_page_setup_set_orientation(page_setup,
225 prefs_common.print_paper_orientation);
226 /* margins */
227 if (prefs_common.print_margin_top != -1)
228 gtk_page_setup_set_top_margin(page_setup,
229 0.01*prefs_common.print_margin_top,
230 PAGE_MARGIN_STORAGE_UNIT);
231 if (prefs_common.print_margin_bottom != -1)
232 gtk_page_setup_set_bottom_margin(page_setup,
233 0.01*prefs_common.print_margin_bottom,
234 PAGE_MARGIN_STORAGE_UNIT);
235 if (prefs_common.print_margin_left != -1)
236 gtk_page_setup_set_left_margin(page_setup,
237 0.01*prefs_common.print_margin_left,
238 PAGE_MARGIN_STORAGE_UNIT);
239 if (prefs_common.print_margin_right != -1)
240 gtk_page_setup_set_right_margin(page_setup,
241 0.01*prefs_common.print_margin_right,
242 PAGE_MARGIN_STORAGE_UNIT);
243 }
244 }
245 return page_setup;
246 }
247
248 void printing_print_full(GtkWindow *parent, PrintRenderer *renderer, gpointer renderer_data,
249 gint sel_start, gint sel_end, GtkImage *avatar)
250 {
251 GtkPrintOperation *op;
252 GtkPrintOperationResult res;
253 PrintData *print_data;
254
255 op = gtk_print_operation_new();
256
257 print_data = g_new0(PrintData,1);
258
259 print_data->renderer = renderer;
260 print_data->renderer_data = renderer_data;
261 print_data->sel_start = sel_start;
262 print_data->sel_end = sel_end;
263 print_data->avatar = (avatar != NULL? GTK_IMAGE(g_object_ref(avatar)): NULL);
264
265 print_data->zoom = 1.;
266
267 print_data->images = g_hash_table_new(g_direct_hash, g_direct_equal);
268
269 print_data->pango_context = renderer->get_pango_context(renderer_data);
270
271 print_data->to_print = renderer->get_data_to_print(renderer_data, sel_start, sel_end);
272
273 printing_get_settings();
274 printing_get_page_setup();
275
276 /* Config for printing */
277 gtk_print_operation_set_print_settings(op, settings);
278 gtk_print_operation_set_default_page_setup(op, page_setup);
279 /* enable Page Size and Orientation in the print dialog */
280 gtk_print_operation_set_embed_page_setup(op, TRUE);
281 /* signals */
282 g_signal_connect(op, "begin_print", G_CALLBACK(renderer->cb_begin_print), print_data);
283 g_signal_connect(op, "draw_page", G_CALLBACK(renderer->cb_draw_page), print_data);
284 g_signal_connect(op, "preview", G_CALLBACK(cb_preview), print_data);
285
286 /* Start printing process */
287 res = gtk_print_operation_run(op, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
288 parent, NULL);
289
290 if (res == GTK_PRINT_OPERATION_RESULT_ERROR) {
291 GError *error = NULL;
292 gtk_print_operation_get_error(op, &error);
293 debug_print("Error printing message: %s\n",
294 error ? error->message : "no details");
295 } else if (res == GTK_PRINT_OPERATION_RESULT_APPLY) {
296 /* store settings for next printing session */
297 printing_store_settings(gtk_print_operation_get_print_settings(op));
298 }
299
300 g_hash_table_foreach(print_data->images, free_pixbuf, NULL);
301 g_hash_table_destroy(print_data->images);
302 if (print_data->to_print)
303 g_free(print_data->to_print);
304 g_list_free(print_data->page_breaks);
305 if (print_data->layout)
306 g_object_unref(print_data->layout);
307 if (print_data->avatar)
308 g_object_unref(print_data->avatar);
309
310 g_free(print_data);
311
312 g_object_unref(op);
313 debug_print("printing_print finished\n");
314 }
315
316 static PangoContext *printing_textview_get_pango_context(gpointer data)
317 {
318 return gtk_widget_get_pango_context(GTK_WIDGET(data));
319 }
320
321 static gpointer printing_textview_get_data_to_print(gpointer data, gint sel_start, gint sel_end)
322 {
323 GtkTextView *text_view = GTK_TEXT_VIEW(data);
324 GtkTextBuffer *buffer = gtk_text_view_get_buffer(text_view);
325 GtkTextIter start, end;
326
327 if (sel_start < 0 || sel_end <= sel_start) {
328 gtk_text_buffer_get_start_iter(buffer, &start);
329 gtk_text_buffer_get_end_iter(buffer, &end);
330 } else {
331 gtk_text_buffer_get_iter_at_offset(buffer, &start, sel_start);
332 gtk_text_buffer_get_iter_at_offset(buffer, &end, sel_end);
333 }
334
335 return gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
336 }
337
338 void printing_print(GtkTextView *text_view, GtkWindow *parent, gint sel_start, gint sel_end, GtkImage *avatar)
339 {
340 PrintRenderer *textview_renderer = g_new0(PrintRenderer, 1);
341
342 textview_renderer->get_pango_context = printing_textview_get_pango_context;
343 textview_renderer->get_data_to_print = printing_textview_get_data_to_print;
344 textview_renderer->cb_begin_print = printing_textview_cb_begin_print;
345 textview_renderer->cb_draw_page = printing_textview_cb_draw_page;
346
347 printing_print_full(parent, textview_renderer, text_view, sel_start, sel_end, avatar);
348
349 g_free(textview_renderer);
350 }
351
352 void printing_page_setup(GtkWindow *parent)
353 {
354 GtkPageSetup *new_page_setup;
355 char *keyfile;
356
357 keyfile = NULL;
358
359 printing_get_settings();
360 printing_get_page_setup();
361
362 new_page_setup = gtk_print_run_page_setup_dialog(parent,page_setup,settings);
363
364 if (page_setup)
365 g_object_unref(page_setup);
366
367 page_setup = new_page_setup;
368
369 g_free(prefs_common.print_paper_type);
370 prefs_common.print_paper_type = g_strdup(gtk_paper_size_get_name(
371 gtk_page_setup_get_paper_size(page_setup)));
372 prefs_common.print_paper_orientation = gtk_page_setup_get_orientation(page_setup);
373 /* store 100th millimeters */
374 prefs_common.print_margin_top = (int) (100*gtk_page_setup_get_top_margin(page_setup,
375 PAGE_MARGIN_STORAGE_UNIT));
376 prefs_common.print_margin_bottom = (int) (100*gtk_page_setup_get_bottom_margin(page_setup,
377 PAGE_MARGIN_STORAGE_UNIT));
378 prefs_common.print_margin_left = (int) (100*gtk_page_setup_get_left_margin(page_setup,
379 PAGE_MARGIN_STORAGE_UNIT));
380 prefs_common.print_margin_right = (int) (100*gtk_page_setup_get_right_margin(page_setup,
381 PAGE_MARGIN_STORAGE_UNIT));
382
383 /* save to file */
384 keyfile = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
385 PRINTING_PAGE_SETUP_STORAGE_FILE, NULL);
386 if (!gtk_page_setup_to_file(page_setup, keyfile, NULL)) {
387 debug_print("Printing: Could not store page setup in file `%s'\n", keyfile);
388 }
389 g_free(keyfile);
390 }
391
392 static gboolean cb_preview(GtkPrintOperation *operation,
393 GtkPrintOperationPreview *preview,
394 GtkPrintContext *context,
395 GtkWindow *parent,
396 gpointer data)
397 {
398 PrintData *print_data;
399 cairo_region_t *creg;
400 cairo_t *cr;
401 GdkDrawingContext *gdc;
402 PreviewData *preview_data;
403 GtkWidget *vbox;
404 GtkWidget *toolbar;
405 GtkWidget *da;
406 GtkWidget *sw;
407 GtkWidget *page;
408 GtkToolItem *separator;
409 static GdkGeometry geometry;
410 GtkWidget *dialog = NULL;
411 GtkWidget *statusbar = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 2);
412
413 debug_print("Creating internal print preview\n");
414
415 print_data = (PrintData*) data;
416
417 preview_data = g_new0(PreviewData,1);
418 preview_data->print_data = print_data;
419 preview_data->op = g_object_ref(operation);
420 preview_data->preview = preview;
421
422 /* Window */
423 dialog = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "print_preview");
424 preview_data->dialog = dialog;
425 if (!geometry.min_height) {
426 geometry.min_width = 600;
427 geometry.min_height = 400;
428 }
429 gtk_window_set_type_hint(GTK_WINDOW(dialog), GDK_WINDOW_TYPE_HINT_DIALOG);
430 gtk_window_set_geometry_hints(GTK_WINDOW(dialog), NULL, &geometry,
431 GDK_HINT_MIN_SIZE);
432 gtk_window_set_default_size(GTK_WINDOW(dialog),
433 prefs_common.print_previewwin_width,
434 prefs_common.print_previewwin_height);
435 gtk_window_set_title(GTK_WINDOW(dialog), _("Print preview"));
436
437 /* vbox */
438 vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
439 gtk_container_add(GTK_CONTAINER(dialog), vbox);
440
441 /* toolbar */
442 toolbar = gtk_toolbar_new();
443 gtk_orientable_set_orientation(GTK_ORIENTABLE(toolbar), GTK_ORIENTATION_HORIZONTAL);
444
445 switch (prefs_common.toolbar_style) {
446 case TOOLBAR_ICON:
447 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_ICONS);
448 break;
449 case TOOLBAR_TEXT:
450 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_TEXT);
451 break;
452 case TOOLBAR_BOTH_HORIZ:
453 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_BOTH_HORIZ);
454 break;
455 case TOOLBAR_BOTH:
456 default:
457 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar), GTK_TOOLBAR_BOTH);
458 }
459 gtk_toolbar_set_show_arrow(GTK_TOOLBAR(toolbar), TRUE);
460
461 gtk_box_pack_start(GTK_BOX(vbox), toolbar, FALSE, FALSE, 0);
462
463 #define CLAWS_SET_TOOL_ITEM_TIP(widget,tip) { \
464 gtk_tool_item_set_tooltip_text(GTK_TOOL_ITEM(widget), tip); \
465 }
466
467 #define TOOLBAR_ITEM(item,text,tooltip,cb,cbdata) { \
468 item = GTK_WIDGET(gtk_tool_button_new (NULL, NULL)); \
469 gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), 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, "go-first",
479 _("First page"), cb_preview_go_first, preview_data);
480 TOOLBAR_ITEM(preview_data->previous, "go-previous",
481 _("Previous page"), cb_preview_go_previous, preview_data);
482
483 page = gtk_label_new("");
484 preview_data->page_nr_label = page;
485
486 TOOLBAR_ITEM(preview_data->next, "go-next",
487 _("Next page"), cb_preview_go_next, preview_data);
488 TOOLBAR_ITEM(preview_data->last, "go-last",
489 _("Last page"), cb_preview_go_last, preview_data);
490
491 separator = gtk_separator_tool_item_new();
492 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(separator), -1);
493
494 TOOLBAR_ITEM(preview_data->zoom_100, "zoom-original",
495 _("Zoom 100%"), cb_preview_zoom_100, preview_data);
496 TOOLBAR_ITEM(preview_data->zoom_fit, "zoom-fit-best",
497 _("Zoom fit"), cb_preview_zoom_fit, preview_data);
498 TOOLBAR_ITEM(preview_data->zoom_in, "zoom-in",
499 _("Zoom in"), cb_preview_zoom_in, preview_data);
500 TOOLBAR_ITEM(preview_data->zoom_out, "zoom-out",
501 _("Zoom out"), cb_preview_zoom_out, preview_data);
502
503 separator = gtk_separator_tool_item_new();
504 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), GTK_TOOL_ITEM(separator), -1);
505
506 /* tooltip has to be NULL else it triggers an expose_event */
507 TOOLBAR_ITEM(preview_data->close, "window-close", _("Close"),
508 cb_preview_btn_close, preview_data);
509
510 gtk_widget_show(statusbar);
511 gtk_box_pack_start(GTK_BOX(vbox), statusbar, FALSE, FALSE, 0);
512 gtk_box_pack_start(GTK_BOX(statusbar), page, FALSE, FALSE, 0);
513 /* Drawing area */
514 sw = gtk_scrolled_window_new(NULL, NULL);
515 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw),
516 GTK_POLICY_AUTOMATIC,
517 GTK_POLICY_AUTOMATIC);
518 gtk_box_pack_start(GTK_BOX(vbox), sw, TRUE, TRUE, 0);
519 da = gtk_drawing_area_new();
520 gtk_container_add(GTK_CONTAINER(sw), da);
521 gtk_widget_realize(da);
522 preview_data->scrolled_window = sw;
523 preview_data->area = da;
524
525 /* cairo context */
526 creg = cairo_region_create();
527 gdc = gdk_window_begin_draw_frame(gtk_widget_get_window(da), creg);
528 cr = gdk_drawing_context_get_cairo_context(gdc);
529 gtk_print_context_set_cairo_context(context, cr, PREVIEW_SCALE, PREVIEW_SCALE);
530 gdk_window_end_draw_frame(gtk_widget_get_window(da), gdc);
531 cairo_region_destroy(creg);
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 gtk_window_get_size(GTK_WINDOW(widget),
587 &prefs_common.print_previewwin_width, &prefs_common.print_previewwin_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 g_signal_connect(G_OBJECT (preview_data->area), "draw",
613 G_CALLBACK(cb_drawing_area), preview_data);
614
615 gtk_widget_queue_draw(preview_data->area);
616 }
617
618 static void cb_preview_got_page_size(GtkPrintOperationPreview *preview,
619 GtkPrintContext *context,
620 GtkPageSetup *page_setup,
621 gpointer data)
622 {
623 PreviewData *preview_data;
624 GtkPaperSize *paper_size;
625 gint paper_width;
626 gint paper_height;
627
628 preview_data = (PreviewData*) data;
629 debug_print("got_page_size\n");
630 paper_size = gtk_page_setup_get_paper_size(page_setup);
631 paper_width = (gint)(gtk_paper_size_get_width(paper_size, GTK_UNIT_INCH)
632 * PREVIEW_SCALE);
633 paper_height = (gint)(gtk_paper_size_get_height(paper_size, GTK_UNIT_INCH)
634 * PREVIEW_SCALE);
635
636 preview_data->page_width = paper_width;
637 preview_data->page_height = paper_height;
638
639 debug_print("w/h %d/%d\n", paper_width, paper_height);
640 gtk_widget_set_size_request(GTK_WIDGET(preview_data->area),
641 paper_width, paper_height);
642 }
643
644 static gboolean cb_drawing_area(GtkWidget *widget, cairo_t *cr, gpointer data)
645 {
646 PreviewData *preview_data = data;
647 GdkDrawingContext *gdc;
648 cairo_region_t *creg;
649 guint width, height;
650
651 width = gtk_widget_get_allocated_width (widget);
652 height = gtk_widget_get_allocated_height (widget);
653
654 debug_print("preview_expose (current %p)\n", preview_data->current_page);
655
656 creg = cairo_region_create();
657 gdc = gdk_window_begin_draw_frame(gtk_widget_get_window(preview_data->area), creg);
658 cr = gdk_drawing_context_get_cairo_context(gdc);
659
660 /* background */
661 cairo_set_source_rgb(cr, 0.5, 0.5, 0.5);
662 cairo_rectangle(cr, 0, 0, width, height);
663 cairo_fill(cr);
664
665 /* shadow */
666 cairo_set_source_rgb(cr, 0., 0., 0.);
667 cairo_rectangle(cr, PREVIEW_SHADOW_OFFSET, PREVIEW_SHADOW_OFFSET,
668 preview_data->page_width+PREVIEW_SHADOW_OFFSET,
669 preview_data->page_height+PREVIEW_SHADOW_OFFSET);
670 cairo_fill(cr);
671
672 /* paper */
673 cairo_set_source_rgb(cr, 1., 1., 1.);
674 cairo_rectangle(cr, 0, 0,
675 preview_data->page_width,
676 preview_data->page_height);
677 cairo_fill(cr);
678
679 gtk_print_context_set_cairo_context(preview_data->context, cr, PREVIEW_SCALE, PREVIEW_SCALE);
680 gdk_window_end_draw_frame(gtk_widget_get_window(preview_data->area), gdc);
681 cairo_region_destroy(creg);
682
683 if (preview_data->current_page) {
684 preview_data->rendering = TRUE;
685 gtk_widget_set_sensitive(preview_data->close, FALSE);
686 int cur = GPOINTER_TO_INT(preview_data->current_page->data);
687 gchar *str;
688 str = g_strdup_printf(_("Page %d"), cur+1);
689 gtk_label_set_text(GTK_LABEL(preview_data->page_nr_label), str);
690 g_free(str);
691 gtk_print_operation_preview_render_page(preview_data->preview,
692 GPOINTER_TO_INT
693 (preview_data->current_page->data));
694
695 gtk_widget_set_sensitive(preview_data->first,
696 preview_data->current_page->prev != NULL);
697 gtk_widget_set_sensitive(preview_data->previous,
698 preview_data->current_page->prev != NULL);
699 gtk_widget_set_sensitive(preview_data->next,
700 preview_data->current_page->next != NULL);
701 gtk_widget_set_sensitive(preview_data->last,
702 preview_data->current_page->next != NULL);
703 gtk_widget_set_sensitive(preview_data->close, TRUE);
704 preview_data->rendering = FALSE;
705 }
706 return TRUE;
707 }
708
709 static void cb_preview_go_first(GtkButton *button, gpointer data)
710 {
711 PreviewData *preview_data = (PreviewData*) data;
712 preview_data->current_page = preview_data->pages_to_print;
713 gtk_widget_queue_draw(preview_data->area);
714 }
715
716 static void cb_preview_go_previous(GtkButton *button, gpointer data)
717 {
718 GList *next;
719 PreviewData *preview_data = (PreviewData*) data;
720 next = g_list_previous(preview_data->current_page);
721 if (next)
722 preview_data->current_page = next;
723 gtk_widget_queue_draw(preview_data->area);
724 }
725
726 static void cb_preview_go_next(GtkButton *button, gpointer data)
727 {
728 GList *next;
729 PreviewData *preview_data = (PreviewData*) data;
730 next = g_list_next(preview_data->current_page);
731 if (next)
732 preview_data->current_page = next;
733 gtk_widget_queue_draw(preview_data->area);
734 }
735
736 static void cb_preview_go_last(GtkButton *button, gpointer data)
737 {
738 PreviewData *preview_data = (PreviewData*) data;
739 preview_data->current_page = g_list_last(preview_data->current_page);
740 gtk_widget_queue_draw(preview_data->area);
741 }
742
743 static void cb_preview_btn_close(GtkButton *button, gpointer data)
744 {
745 PreviewData *preview_data = (PreviewData *)data;
746 if (preview_data->rendering)
747 return;
748 gtk_widget_destroy(preview_data->dialog);
749 }
750
751 static void cb_preview_zoom_100(GtkButton *button, gpointer data)
752 {
753 PreviewData *preview_data = (PreviewData*) data;
754 if (preview_data->print_data->zoom != 1.) {
755 preview_data->print_data->zoom = 1.;
756 gtk_widget_queue_draw(preview_data->area);
757 printing_preview_update_zoom_sensitivity(preview_data);
758 }
759 }
760
761 static void cb_preview_zoom_fit(GtkButton *button, gpointer data)
762 {
763 PreviewData *preview_data = (PreviewData*) data;
764 GtkAllocation allocation;
765 gdouble zoom_w;
766 gdouble zoom_h;
767
768 gtk_widget_get_allocation(preview_data->scrolled_window, &allocation);
769 zoom_w = ((gdouble)allocation.width) /
770 ((gdouble)preview_data->page_width/preview_data->print_data->zoom +
771 PREVIEW_SHADOW_OFFSET);
772 zoom_h = ((gdouble)allocation.height) /
773 ((gdouble)preview_data->page_height/preview_data->print_data->zoom +
774 PREVIEW_SHADOW_OFFSET);
775
776 preview_data->print_data->zoom = MIN(zoom_w,zoom_h) - 0.01;
777
778 if (preview_data->print_data->zoom > PREVIEW_ZOOM_MAX)
779 preview_data->print_data->zoom = PREVIEW_ZOOM_MAX;
780 else if (preview_data->print_data->zoom < PREVIEW_ZOOM_MIN)
781 preview_data->print_data->zoom = PREVIEW_ZOOM_MIN;
782
783 printing_preview_update_zoom_sensitivity(preview_data);
784 gtk_widget_queue_draw(preview_data->area);
785 }
786
787 static void cb_preview_zoom_in(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_MAX) {
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_zoom_out(GtkButton *button, gpointer data)
800 {
801 PreviewData *preview_data = (PreviewData*) data;
802 gdouble new_zoom;
803 new_zoom = preview_data->print_data->zoom / PREVIEW_ZOOM_FAC;
804 if (new_zoom >= PREVIEW_ZOOM_MIN) {
805 preview_data->print_data->zoom = new_zoom;
806 printing_preview_update_zoom_sensitivity(preview_data);
807 gtk_widget_queue_draw(preview_data->area);
808 }
809 }
810
811 static void cb_preview_request_page_setup(GtkPrintOperation *op,
812 GtkPrintContext *context,
813 gint page_nr,
814 GtkPageSetup *setup,gpointer data)
815 {
816 GtkPaperSize *paper_size;
817 GtkPaperSize *old_size;
818 gdouble width;
819 gdouble height;
820 gdouble top_margin;
821 gdouble bottom_margin;
822 gdouble left_margin;
823 gdouble right_margin;
824
825 PreviewData *preview_data = (PreviewData*) data;
826
827 old_size = gtk_page_setup_get_paper_size(setup);
828 width = gtk_paper_size_get_width(old_size,GTK_UNIT_INCH);
829 height = gtk_paper_size_get_height(old_size,GTK_UNIT_INCH);
830
831 top_margin = gtk_page_setup_get_top_margin(setup,GTK_UNIT_INCH);
832 bottom_margin = gtk_page_setup_get_bottom_margin(setup,GTK_UNIT_INCH);
833 left_margin = gtk_page_setup_get_left_margin(setup,GTK_UNIT_INCH);
834 right_margin = gtk_page_setup_get_right_margin(setup,GTK_UNIT_INCH);
835
836 paper_size = gtk_paper_size_new_custom("preview paper", "preview_paper",
837 width*preview_data->print_data->zoom,
838 height*preview_data->print_data->zoom,
839 GTK_UNIT_INCH);
840 gtk_page_setup_set_paper_size(setup, paper_size);
841 gtk_paper_size_free(paper_size);
842
843 gtk_page_setup_set_top_margin(setup,top_margin*preview_data->print_data->zoom,
844 GTK_UNIT_INCH);
845 gtk_page_setup_set_bottom_margin(setup,bottom_margin*preview_data->print_data->zoom,
846 GTK_UNIT_INCH);
847 gtk_page_setup_set_left_margin(setup,left_margin*preview_data->print_data->zoom,
848 GTK_UNIT_INCH);
849 gtk_page_setup_set_right_margin(setup,right_margin*preview_data->print_data->zoom,
850 GTK_UNIT_INCH);
851 }
852
853 static void printing_textview_cb_begin_print(GtkPrintOperation *op, GtkPrintContext *context,
854 gpointer user_data)
855 {
856 double width, height;
857 int num_lines;
858 double page_height;
859 GList *page_breaks;
860 PrintData *print_data;
861 PangoFontDescription *desc;
862 int start, ii;
863 PangoLayoutIter *iter;
864 gint header_end_pos;
865 gint num_header_lines;
866 gint dummy;
867 gboolean header_done;
868 gboolean has_headers = FALSE;
869 const gchar *text;
870 double line_height =0.;
871
872 print_data = (PrintData*) user_data;
873
874 debug_print("Preparing print job...\n");
875
876 width = gtk_print_context_get_width(context);
877 height = gtk_print_context_get_height(context);
878
879 if (print_data->layout == NULL)
880 print_data->layout = gtk_print_context_create_pango_layout(context);
881
882 if (prefs_common.use_different_print_font)
883 desc = pango_font_description_from_string(prefs_common.printfont);
884 else
885 desc = pango_font_description_copy(
886 pango_context_get_font_description(print_data->pango_context));
887
888 pango_layout_set_font_description(print_data->layout, desc);
889 pango_font_description_free(desc);
890
891 pango_layout_set_width(print_data->layout, width * PANGO_SCALE);
892 pango_layout_set_text(print_data->layout, (char *)print_data->to_print, -1);
893
894 printing_layout_set_text_attributes(print_data, context, &has_headers);
895
896 num_lines = pango_layout_get_line_count(print_data->layout);
897
898 page_breaks = NULL;
899 page_height = 0;
900 start = 0;
901 ii = 0;
902 iter = pango_layout_get_iter(print_data->layout);
903
904 /* find the last character of the header */
905 header_end_pos = 0;
906 header_done = FALSE;
907 text = pango_layout_get_text(print_data->layout);
908
909 if (has_headers) {
910 if (text && *text && *text != '\n') {
911 do {
912 if (text[0] == '\n' && (text[1] != '\0') && (text[1] == '\n'))
913 header_done = TRUE;
914 else
915 header_end_pos++;
916 text++;
917 } while(*text && !header_done);
918 }
919 /* find line number for header end */
920 pango_layout_index_to_line_x(print_data->layout, header_end_pos, 1,
921 &num_header_lines, &dummy);
922 /* line count is zero-based */
923 num_header_lines++;
924 } else {
925 print_data->ypos_line = -1.0;
926 }
927
928 do {
929 PangoRectangle logical_rect;
930 PangoAttrShape *attr = NULL;
931
932 if (ii >= start) {
933 pango_layout_iter_get_line_extents(iter, NULL, &logical_rect);
934
935 if ((attr = g_hash_table_lookup(print_data->images,
936 GINT_TO_POINTER(pango_layout_iter_get_index(iter)))) != NULL) {
937 line_height = (double)gdk_pixbuf_get_height(GDK_PIXBUF(attr->data));
938 } else {
939 line_height = ((double)logical_rect.height) / PANGO_SCALE;
940 }
941 }
942 if ((page_height + line_height) > height) {
943 page_breaks = g_list_prepend(page_breaks, GINT_TO_POINTER(ii));
944 page_height = 0;
945 }
946
947 if (has_headers && ii == num_header_lines) {
948 int y0, y1;
949 pango_layout_iter_get_line_yrange(iter,&y0,&y1);
950 print_data->ypos_line = (double)y0 + 1./3.*((double)(y1 - y0))/2.;
951 }
952
953 page_height += line_height;
954 ii++;
955 } while(ii < num_lines && pango_layout_iter_next_line(iter));
956 pango_layout_iter_free(iter);
957
958 page_breaks = g_list_reverse(page_breaks);
959 print_data->npages = g_list_length(page_breaks) + 1;
960 print_data->page_breaks = page_breaks;
961
962 gtk_print_operation_set_n_pages(op, print_data->npages);
963
964 debug_print("Starting print job...\n");
965 }
966
967 static cairo_surface_t *pixbuf_to_surface(GdkPixbuf *pixbuf)
968 {
969 cairo_surface_t *surface;
970 cairo_format_t format;
971 static const cairo_user_data_key_t key;
972 guchar *pixels = g_malloc(
973 4*
974 gdk_pixbuf_get_width(pixbuf)*
975 gdk_pixbuf_get_height(pixbuf));
976 guchar *src_pixels = gdk_pixbuf_get_pixels (pixbuf);
977 gint width = gdk_pixbuf_get_width(pixbuf);
978 gint height = gdk_pixbuf_get_height(pixbuf);
979 gint nchans = gdk_pixbuf_get_n_channels (pixbuf);
980 gint stride = gdk_pixbuf_get_rowstride (pixbuf);
981 gint j;
982
983 if (nchans == 3)
984 format = CAIRO_FORMAT_RGB24;
985 else
986 format = CAIRO_FORMAT_ARGB32;
987 surface = cairo_image_surface_create_for_data (pixels,
988 format, width, height, 4*width);
989 cairo_surface_set_user_data (surface, &key,
990 pixels, (cairo_destroy_func_t)g_free);
991
992 for (j = height; j; j--) {
993 guchar *p = src_pixels;
994 guchar *q = pixels;
995
996 if (nchans == 3) {
997 guchar *end = p + 3 * width;
998
999 while (p < end) {
1000 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
1001 q[0] = p[2];
1002 q[1] = p[1];
1003 q[2] = p[0];
1004 #else
1005 q[1] = p[0];
1006 q[2] = p[1];
1007 q[3] = p[2];
1008 #endif
1009 p += 3;
1010 q += 4;
1011 }
1012 } else {
1013 guchar *end = p + 4 * width;
1014 guint t1,t2,t3;
1015
1016 #define MULT(d,c,a,t) G_STMT_START { t = c * a + 0x7f; d = ((t >> 8) + t) >> 8; } G_STMT_END
1017
1018 while (p < end) {
1019 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
1020 MULT(q[0], p[2], p[3], t1);
1021 MULT(q[1], p[1], p[3], t2);
1022 MULT(q[2], p[0], p[3], t3);
1023 q[3] = p[3];
1024 #else
1025 q[0] = p[3];
1026 MULT(q[1], p[0], p[3], t1);
1027 MULT(q[2], p[1], p[3], t2);
1028 MULT(q[3], p[2], p[3], t3);
1029 #endif
1030
1031 p += 4;
1032 q += 4;
1033 }
1034
1035 #undef MULT
1036 }
1037
1038 src_pixels += stride;
1039 pixels += 4 * width;
1040 }
1041
1042 return surface;
1043 }
1044
1045 static void printing_textview_cb_draw_page(GtkPrintOperation *op, GtkPrintContext *context,
1046 int page_nr, gpointer user_data)
1047 {
1048 cairo_t *cr;
1049 PrintData *print_data;
1050 int start, end, ii;
1051 GList *pagebreak;
1052 PangoLayoutIter *iter;
1053 double start_pos;
1054 gboolean notlast = TRUE;
1055
1056 print_data = (PrintData*) user_data;
1057
1058 if (page_nr == 0) {
1059 start = 0;
1060 } else {
1061 pagebreak = g_list_nth(print_data->page_breaks, page_nr - 1);
1062 start = GPOINTER_TO_INT(pagebreak->data);
1063 }
1064
1065 pagebreak = g_list_nth(print_data->page_breaks, page_nr);
1066 if (pagebreak == NULL)
1067 end = pango_layout_get_line_count(print_data->layout);
1068 else
1069 end = GPOINTER_TO_INT(pagebreak->data);
1070
1071 cr = gtk_print_context_get_cairo_context(context);
1072 cairo_scale(cr, print_data->zoom, print_data->zoom);
1073 cairo_set_source_rgb(cr, 0., 0., 0.);
1074
1075 ii = 0;
1076 start_pos = 0.;
1077 iter = pango_layout_get_iter(print_data->layout);
1078 do {
1079 PangoRectangle logical_rect;
1080 PangoLayoutLine *line;
1081 PangoAttrShape *attr = NULL;
1082 int baseline;
1083
1084 if (ii >= start) {
1085 line = pango_layout_iter_get_line(iter);
1086
1087 pango_layout_iter_get_line_extents(iter, NULL, &logical_rect);
1088 baseline = pango_layout_iter_get_baseline(iter);
1089
1090 if (ii == start) {
1091 start_pos = ((double)logical_rect.y) / PANGO_SCALE;
1092 }
1093 /* Draw header separator line */
1094 if (ii == 0 && print_data->ypos_line >= 0) {
1095 cairo_surface_t *surface;
1096 surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1097 gtk_print_context_get_width(context)/print_data->zoom,
1098 gtk_print_context_get_height(context)/print_data->zoom);
1099 cairo_set_line_width(cr, .5);
1100 cairo_set_source_surface(cr, surface,
1101 ((double)logical_rect.x) / PANGO_SCALE,
1102 ((double)baseline) / PANGO_SCALE - start_pos);
1103 cairo_move_to(cr, ((double)logical_rect.x) / PANGO_SCALE,
1104 (double)print_data->ypos_line / PANGO_SCALE);
1105 cairo_rel_line_to(cr, gtk_print_context_get_width(context)/print_data->zoom, 0);
1106 cairo_set_source_rgb(cr, 0., 0., 0.);
1107 cairo_stroke(cr);
1108 cairo_surface_destroy(surface);
1109 }
1110
1111 cairo_move_to(cr,
1112 ((double)logical_rect.x) / PANGO_SCALE,
1113 ((double)baseline) / PANGO_SCALE - start_pos);
1114
1115 if ((attr = g_hash_table_lookup(print_data->images,
1116 GINT_TO_POINTER(pango_layout_iter_get_index(iter)))) != NULL) {
1117 cairo_surface_t *surface;
1118
1119 surface = pixbuf_to_surface(GDK_PIXBUF(attr->data));
1120 cairo_set_source_surface (cr, surface,
1121 ((double)logical_rect.x) / PANGO_SCALE,
1122 ((double)baseline) / PANGO_SCALE - start_pos);
1123 cairo_paint (cr);
1124 cairo_surface_destroy (surface);
1125 } else {
1126 pango_cairo_show_layout_line(cr, line);
1127 }
1128 }
1129 ii++;
1130 } while(ii < end && (notlast = pango_layout_iter_next_line(iter)));
1131
1132 if (print_data->avatar && page_nr == 0) {
1133 cairo_surface_t *surface;
1134 GdkPixbuf *pixbuf = gtk_image_get_pixbuf(print_data->avatar);
1135 gdouble startx, starty;
1136
1137 if (pixbuf != NULL) {
1138 startx = gtk_print_context_get_width(context)/print_data->zoom;
1139
1140 startx -= ((double)gdk_pixbuf_get_width(pixbuf));
1141
1142 starty = start_pos;
1143
1144 surface = pixbuf_to_surface(pixbuf);
1145 cairo_set_source_surface (cr, surface, startx, starty);
1146 cairo_paint (cr);
1147 cairo_surface_destroy (surface);
1148 }
1149 }
1150
1151 pango_layout_iter_free(iter);
1152 debug_print("Sent page %d to printer\n", page_nr+1);
1153 }
1154
1155 static void printing_layout_set_text_attributes(PrintData *print_data,
1156 GtkPrintContext *context,
1157 gboolean *has_headers)
1158 {
1159 GtkTextIter iter;
1160 PangoAttrList *attr_list;
1161 PangoAttribute *attr;
1162 GSList *open_attrs, *attr_walk;
1163 GtkTextView *text_view = GTK_TEXT_VIEW(print_data->renderer_data);
1164 GtkTextBuffer *buffer = gtk_text_view_get_buffer(text_view);
1165
1166 *has_headers = FALSE;
1167
1168 attr_list = pango_attr_list_new();
1169 if (print_data->sel_start < 0 || print_data->sel_end <= print_data->sel_start) {
1170 gtk_text_buffer_get_start_iter(buffer, &iter);
1171 } else {
1172 gtk_text_buffer_get_iter_at_offset(buffer, &iter, print_data->sel_start);
1173 }
1174
1175 open_attrs = NULL;
1176 do {
1177 gboolean fg_set, bg_set, under_set, strike_set, weight_set;
1178 GSList *tags, *tag_walk;
1179 GtkTextTag *tag;
1180 GdkRGBA *color = NULL;
1181 PangoUnderline underline;
1182 gboolean strikethrough;
1183 gint weight;
1184 GdkPixbuf *image;
1185
1186 if (prefs_common.print_imgs && (image = gtk_text_iter_get_pixbuf(&iter)) != NULL) {
1187 PangoRectangle rect = {0, 0, 0, 0};
1188 gint startpos = printing_text_iter_get_offset_bytes(print_data, &iter);
1189 gint h = gdk_pixbuf_get_height(image);
1190 gint w = gdk_pixbuf_get_width(image);
1191 gint a_h = gtk_print_context_get_height(context);
1192 gint a_w = gtk_print_context_get_width(context);
1193 gint r_h, r_w;
1194 GdkPixbuf *scaled = NULL;
1195 image_viewer_get_resized_size(w, h, a_w, a_h, &r_w, &r_h);
1196 rect.x = 0;
1197 rect.y = 0;
1198 rect.width = r_w * PANGO_SCALE;
1199 rect.height = r_h * PANGO_SCALE;
1200
1201 scaled = gdk_pixbuf_scale_simple(image, r_w, r_h, GDK_INTERP_BILINEAR);
1202 attr = pango_attr_shape_new_with_data (&rect, &rect,
1203 scaled, NULL, NULL);
1204 attr->start_index = startpos;
1205 attr->end_index = startpos+1;
1206 pango_attr_list_insert(attr_list, attr);
1207 g_hash_table_insert(print_data->images, GINT_TO_POINTER(startpos), attr);
1208 print_data->img_cnt++;
1209 }
1210
1211 if (gtk_text_iter_ends_tag(&iter, NULL)) {
1212 PangoAttrColor *attr_color;
1213 PangoAttrInt *attr_int;
1214
1215 tags = gtk_text_iter_get_toggled_tags(&iter, FALSE);
1216 for (tag_walk = tags; tag_walk != NULL; tag_walk = tag_walk->next) {
1217 gboolean found;
1218
1219 tag = GTK_TEXT_TAG(tag_walk->data);
1220 g_object_get(G_OBJECT(tag),
1221 "background-set", &bg_set,
1222 "foreground-set", &fg_set,
1223 "underline-set",&under_set,
1224 "strikethrough-set", &strike_set,
1225 "weight-set", &weight_set,
1226 NULL);
1227
1228 if (fg_set) {
1229 found = FALSE;
1230 for (attr_walk = open_attrs; attr_walk != NULL;
1231 attr_walk = attr_walk->next) {
1232 attr = (PangoAttribute*)attr_walk->data;
1233 if (attr->klass->type == PANGO_ATTR_FOREGROUND) {
1234 attr_color = (PangoAttrColor*) attr;
1235 g_object_get(G_OBJECT(tag), "foreground-rgba",
1236 &color, NULL);
1237 if (color &&
1238 printing_is_pango_gdk_rgba_equal(&(attr_color->color),
1239 color)) {
1240 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1241 pango_attr_list_insert(attr_list, attr);
1242 found = TRUE;
1243 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1244 break;
1245 }
1246 if (color)
1247 gdk_rgba_free(color);
1248 }
1249 }
1250 if (!found)
1251 debug_print("Error generating attribute list.\n");
1252 }
1253
1254 if (bg_set) {
1255 found = FALSE;
1256 for (attr_walk = open_attrs; attr_walk != NULL;
1257 attr_walk = attr_walk->next) {
1258 attr = (PangoAttribute*)attr_walk->data;
1259 if (attr->klass->type == PANGO_ATTR_BACKGROUND) {
1260 attr_color = (PangoAttrColor*) attr;
1261 g_object_get(G_OBJECT(tag), "background-rgba",
1262 &color, NULL);
1263 if (color &&
1264 printing_is_pango_gdk_rgba_equal(&(attr_color->color),
1265 color)) {
1266 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1267 pango_attr_list_insert(attr_list, attr);
1268 found = TRUE;
1269 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1270 break;
1271 }
1272 if (color)
1273 gdk_rgba_free(color);
1274 }
1275 }
1276 if (!found)
1277 debug_print("Error generating attribute list.\n");
1278 }
1279
1280 if (under_set) {
1281 found = FALSE;
1282 for (attr_walk = open_attrs; attr_walk != NULL;
1283 attr_walk = attr_walk->next) {
1284 attr = (PangoAttribute*)attr_walk->data;
1285 if (attr->klass->type == PANGO_ATTR_UNDERLINE) {
1286 attr_int = (PangoAttrInt*)attr;
1287 g_object_get(G_OBJECT(tag), "underline",
1288 &underline, NULL);
1289 if (attr_int->value == underline) {
1290 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1291 pango_attr_list_insert(attr_list, attr);
1292 found = TRUE;
1293 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1294 break;
1295 }
1296 }
1297 }
1298 if (!found)
1299 debug_print("Error generating attribute list.\n");
1300 }
1301
1302 if (strike_set) {
1303 found = FALSE;
1304 for (attr_walk = open_attrs; attr_walk != NULL;
1305 attr_walk = attr_walk->next) {
1306 attr = (PangoAttribute*)attr_walk->data;
1307 if (attr->klass->type == PANGO_ATTR_STRIKETHROUGH) {
1308 attr_int = (PangoAttrInt*)attr;
1309 g_object_get(G_OBJECT(tag), "strikethrough",
1310 &strikethrough, NULL);
1311 if (attr_int->value == strikethrough) {
1312 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1313 pango_attr_list_insert(attr_list, attr);
1314 found = TRUE;
1315 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1316 break;
1317 }
1318 }
1319 }
1320 if (!found)
1321 debug_print("Error generating attribute list.\n");
1322 }
1323
1324 if (weight_set) {
1325 found = FALSE;
1326 for (attr_walk = open_attrs; attr_walk != NULL;
1327 attr_walk = attr_walk->next) {
1328 attr = (PangoAttribute*)attr_walk->data;
1329 if (attr->klass->type == PANGO_ATTR_WEIGHT) {
1330 attr_int = (PangoAttrInt*)attr;
1331 g_object_get(G_OBJECT(tag), "weight", &weight, NULL);
1332 if (attr_int->value == weight) {
1333 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1334 pango_attr_list_insert(attr_list, attr);
1335 found = TRUE;
1336 open_attrs = g_slist_delete_link(open_attrs, attr_walk);
1337 break;
1338 }
1339 }
1340 }
1341 if (!found)
1342 debug_print("Error generating attribute list.\n");
1343 }
1344 }
1345 g_slist_free(tags);
1346 }
1347
1348 if (gtk_text_iter_starts_tag(&iter, NULL)) {
1349 tags = gtk_text_iter_get_toggled_tags(&iter, TRUE);
1350 /* Sometimes, an iter has several weights. Use only the first in this case */
1351 gboolean weight_set_for_this_iter;
1352 weight_set_for_this_iter = FALSE;
1353 for (tag_walk = tags; tag_walk != NULL; tag_walk = tag_walk->next) {
1354 tag = GTK_TEXT_TAG(tag_walk->data);
1355 g_object_get(G_OBJECT(tag),
1356 "background-set", &bg_set,
1357 "foreground-set", &fg_set,
1358 "underline-set", &under_set,
1359 "strikethrough-set", &strike_set,
1360 "weight-set", &weight_set,
1361 NULL);
1362 if (fg_set) {
1363 g_object_get(G_OBJECT(tag), "foreground-rgba", &color, NULL);
1364 PangoColor *pc = printing_pango_color_from_gdk_rgba(color);
1365 attr = pango_attr_foreground_new(pc->red, pc->green, pc->blue);
1366 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1367 open_attrs = g_slist_prepend(open_attrs, attr);
1368 g_free(pc);
1369 }
1370 if (bg_set) {
1371 g_object_get(G_OBJECT(tag), "background-rgba", &color, NULL);
1372 PangoColor *pc = printing_pango_color_from_gdk_rgba(color);
1373 attr = pango_attr_background_new(pc->red, pc->green, pc->blue);
1374 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1375 open_attrs = g_slist_prepend(open_attrs, attr);
1376 g_free(pc);
1377 }
1378 if (under_set) {
1379 g_object_get(G_OBJECT(tag), "underline", &underline, NULL);
1380 attr = pango_attr_underline_new(underline);
1381 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1382 open_attrs = g_slist_prepend(open_attrs, attr);
1383 }
1384 if (strike_set) {
1385 g_object_get(G_OBJECT(tag), "strikethrough", &strikethrough, NULL);
1386 attr = pango_attr_strikethrough_new(strikethrough);
1387 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1388 open_attrs = g_slist_prepend(open_attrs, attr);
1389 }
1390 if (weight_set && !weight_set_for_this_iter) {
1391 weight_set_for_this_iter = TRUE;
1392 g_object_get(G_OBJECT(tag), "weight", &weight, NULL);
1393 attr = pango_attr_weight_new(weight);
1394 attr->start_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1395 open_attrs = g_slist_prepend(open_attrs, attr);
1396 /* Hack to see if the first char is bold -- indicates header */
1397 if (attr->start_index == 0 && weight == PANGO_WEIGHT_BOLD) {
1398 *has_headers = TRUE;
1399 }
1400 }
1401 }
1402 g_slist_free(tags);
1403 }
1404
1405 } while(!gtk_text_iter_is_end(&iter) && gtk_text_iter_forward_to_tag_toggle(&iter, NULL));
1406
1407 /* close all open attributes */
1408 for (attr_walk = open_attrs; attr_walk != NULL; attr_walk = attr_walk->next) {
1409 attr = (PangoAttribute*) attr_walk->data;
1410 attr->end_index = printing_text_iter_get_offset_bytes(print_data, &iter);
1411 pango_attr_list_insert(attr_list, attr);
1412 }
1413 g_slist_free(open_attrs);
1414
1415 pango_layout_set_attributes(print_data->layout, attr_list);
1416 pango_attr_list_unref(attr_list);
1417 }
1418
1419 PangoColor* printing_pango_color_from_gdk_rgba(GdkRGBA* g)
1420 {
1421 PangoColor *c;
1422
1423 c = g_new(PangoColor, 1);
1424 c->red = (guint16) (g->red * 65535);
1425 c->green = (guint16) (g->green * 65535);
1426 c->blue = (guint16) (g->blue * 65535);
1427 return c;
1428 }
1429
1430 static gboolean printing_is_pango_gdk_rgba_equal(PangoColor *p, GdkRGBA *g)
1431 {
1432 PangoColor c;
1433
1434 c.red = (guint16) (g->red * 65535);
1435 c.green = (guint16) (g->green * 65535);
1436 c.blue = (guint16) (g->blue * 65535);
1437 return ((c.red == p->red) && (c.green == p->green) && (c.blue == p->blue));
1438 }
1439
1440 /* Pango has it's attribute in bytes, but GtkTextIter gets only an offset
1441 * in characters, so here we're returning an offset in bytes.
1442 */
1443 static gint printing_text_iter_get_offset_bytes(PrintData *print_data, const GtkTextIter *iter)
1444 {
1445 gint off_bytes;
1446 gchar *text;
1447 GtkTextIter start;
1448
1449 if (print_data->sel_start < 0 || print_data->sel_end <= print_data->sel_start) {
1450 gtk_text_buffer_get_start_iter(gtk_text_iter_get_buffer(iter), &start);
1451 } else {
1452 gtk_text_buffer_get_iter_at_offset(gtk_text_iter_get_buffer(iter), &start, print_data->sel_start);
1453 }
1454 text = gtk_text_iter_get_text(&start, iter);
1455 off_bytes = strlen(text);
1456 g_free(text);
1457 return off_bytes;
1458 }
1459
1460 static void printing_preview_update_zoom_sensitivity(PreviewData *preview_data)
1461 {
1462 if((preview_data->print_data->zoom * PREVIEW_ZOOM_FAC) > PREVIEW_ZOOM_MAX)
1463 gtk_widget_set_sensitive(preview_data->zoom_in, FALSE);
1464 else
1465 gtk_widget_set_sensitive(preview_data->zoom_in, TRUE);
1466
1467 if ((preview_data->print_data->zoom / PREVIEW_ZOOM_FAC) < PREVIEW_ZOOM_MIN)
1468 gtk_widget_set_sensitive(preview_data->zoom_out, FALSE);
1469 else
1470 gtk_widget_set_sensitive(preview_data->zoom_out, TRUE);
1471 }