-
Notifications
You must be signed in to change notification settings - Fork 594
/
printing.c
919 lines (764 loc) · 28.8 KB
/
printing.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
/*
* printing.c - this file is part of Geany, a fast and lightweight IDE
*
* Copyright 2007-2012 Enrico Tröger <enrico(dot)troeger(at)uvena(dot)de>
* Copyright 2007-2012 Nick Treleaven <nick(dot)treleaven(at)btinternet(dot)com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* GTK printing support
* (basic code layout were adopted from Sylpheed's printing implementation, thanks)
*/
#include <math.h>
#include <time.h>
#include <string.h>
#include "geany.h"
#include "printing.h"
#include "document.h"
#include "sciwrappers.h"
#include "editor.h"
#include "sciwrappers.h"
#include "utils.h"
#include "support.h"
#include "dialogs.h"
#include "utils.h"
#include "ui_utils.h"
#include "msgwindow.h"
PrintingPrefs printing_prefs;
#define ROTATE_RGB(color) \
(((color) & 0xFF0000) >> 16) + ((color) & 0x00FF00) + (((color) & 0x0000FF) << 16)
#define ADD_ATTR(l, a) \
pango_attr_list_insert((l), (a)); \
(a)->start_index = 0; \
(a)->end_index = G_MAXUINT;
enum
{
FORE = 0,
BACK,
BOLD,
ITALIC,
MAX_TYPES
};
/* document-related variables */
typedef struct
{
GeanyDocument *doc;
gint font_width;
gint lines;
gint n_pages;
gint lines_per_page;
gint max_line_number_margin;
gint cur_line;
gint cur_pos;
gint styles[STYLE_MAX + 1][MAX_TYPES];
gdouble line_height;
/* whether we have a wrapped line on page end to take care of on next page */
gboolean long_line;
/* set in begin_print() to hold the time when printing was started to ensure all printed
* pages have the same date and time (in case of slow machines and many pages where rendering
* takes more than a second) */
time_t print_time;
PangoLayout *layout; /* commonly used layout object */
} DocInfo;
/* widget references for the custom widget in the print dialog */
typedef struct
{
GtkWidget *check_print_linenumbers;
GtkWidget *check_print_pagenumbers;
GtkWidget *check_print_pageheader;
GtkWidget *check_print_basename;
GtkWidget *entry_print_dateformat;
} PrintWidgets;
static GtkPrintSettings *settings = NULL;
static GtkPageSetup *page_setup = NULL;
/* returns the "width" (count of needed characters) for the given number */
static gint get_line_numbers_arity(gint x)
{
gint a = 0;
while ((x /= 10) != 0)
a++;
return a;
}
/* split a RGB colour into the three colour components */
static void get_rgb_values(gint c, gint *r, gint *g, gint *b)
{
c = ROTATE_RGB(c);
if (interface_prefs.highlighting_invert_all)
c = utils_invert_color(c);
*r = c % 256;
*g = (c & - 16711936) / 256;
*b = (c & 0xff0000) / 65536;
*r *= 257;
*g *= 257;
*b *= 257;
}
/* creates a commonly used layout object from the given context for use in get_page_count and
* draw_page */
static PangoLayout *setup_pango_layout(GtkPrintContext *context, PangoFontDescription *desc)
{
PangoLayout *layout;
layout = gtk_print_context_create_pango_layout(context);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_spacing(layout, 0);
pango_layout_set_attributes(layout, NULL);
pango_layout_set_font_description(layout, desc);
return layout;
}
static gboolean utils_font_desc_check_monospace(PangoContext *pc, PangoFontDescription *desc)
{
PangoFontFamily **families;
gint n_families, i;
const gchar *font;
gboolean ret = TRUE;
font = pango_font_description_get_family(desc);
pango_context_list_families(pc, &families, &n_families);
for (i = 0; i < n_families; i++)
{
if (utils_str_equal(font, pango_font_family_get_name(families[i])))
{
if (!pango_font_family_is_monospace(families[i]))
{
ret = FALSE;
}
}
}
g_free(families);
return ret;
}
/* We don't support variable width fonts (yet) */
static gint get_font_width(GtkPrintContext *context, PangoFontDescription *desc)
{
PangoContext *pc;
PangoFontMetrics *metrics;
gint width;
pc = gtk_print_context_create_pango_context(context);
if (!utils_font_desc_check_monospace(pc, desc))
dialogs_show_msgbox_with_secondary(GTK_MESSAGE_WARNING,
_("The editor font is not a monospaced font!"),
_("Text will be wrongly spaced."));
metrics = pango_context_get_metrics(pc, desc, pango_context_get_language(pc));
/** TODO is this the best result we can get? */
/* digit and char width are mostly equal for monospace fonts, char width might be
* for dual width characters(e.g. Japanese) so use digit width to get sure we get the width
* for one character */
width = pango_font_metrics_get_approximate_digit_width(metrics) / PANGO_SCALE;
pango_font_metrics_unref(metrics);
g_object_unref(pc);
return width;
}
static gint get_page_count(GtkPrintContext *context, DocInfo *dinfo)
{
gdouble width, height;
gint layout_h;
gint i, j, lines_left;
gchar *line_buf;
if (dinfo == NULL)
return -1;
width = gtk_print_context_get_width(context);
height = gtk_print_context_get_height(context);
if (printing_prefs.print_line_numbers)
/* remove line number margin space from overall width */
width -= dinfo->max_line_number_margin * dinfo->font_width;
pango_layout_set_width(dinfo->layout, width * PANGO_SCALE);
/* add test text to get line height */
pango_layout_set_text(dinfo->layout, "Test 1", -1);
pango_layout_get_size(dinfo->layout, NULL, &layout_h);
if (layout_h <= 0)
{
geany_debug("Invalid layout_h (%d). Falling back to default height (%d)",
layout_h, 100 * PANGO_SCALE);
layout_h = 100 * PANGO_SCALE;
}
dinfo->line_height = (gdouble)layout_h / PANGO_SCALE;
dinfo->lines_per_page = ceil((height - dinfo->line_height) / dinfo->line_height);
#ifdef GEANY_PRINT_DEBUG
geany_debug("max lines_per_page: %d", dinfo->lines_per_page);
#endif
if (printing_prefs.print_page_numbers)
dinfo->lines_per_page -= 2;
if (printing_prefs.print_page_header)
dinfo->lines_per_page -= 3;
lines_left = dinfo->lines_per_page;
i = 0;
for (j = 0; j < dinfo->lines; j++)
{
gint lines = 1;
gint line_width;
line_buf = sci_get_line(dinfo->doc->editor->sci, j);
line_width = (g_utf8_strlen(line_buf, -1) + 1) * dinfo->font_width;
if (line_width > width)
lines = ceil(line_width / width);
#ifdef GEANY_PRINT_DEBUG
if (lines != 1) geany_debug("%d %d", j+1, lines);
#endif
while (lines_left < lines)
{
lines -= lines_left;
lines_left = dinfo->lines_per_page;
i++;
}
lines_left -= lines;
g_free(line_buf);
}
return i + 1;
}
static void add_page_header(DocInfo *dinfo, cairo_t *cr, gint width, gint page_nr)
{
gint ph_height = dinfo->line_height * 3;
gchar *data;
gchar *datetime;
gchar *tmp_file_name = (dinfo->doc->file_name != NULL) ?
dinfo->doc->file_name : GEANY_STRING_UNTITLED;
gchar *file_name = (printing_prefs.page_header_basename) ?
g_path_get_basename(tmp_file_name) : g_strdup(tmp_file_name);
PangoLayout *layout = dinfo->layout;
/* draw the frame */
cairo_set_line_width(cr, 0.3);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_rectangle(cr, 2, 2, width - 4, ph_height - 4);
cairo_stroke(cr);
/* width - 8: 2px between doc border and frame border, 2px between frame border and text
* and this on left and right side, so (2 + 2) * 2 */
pango_layout_set_width(layout, (width - 8) * PANGO_SCALE);
if ((g_utf8_strlen(file_name, -1) * dinfo->font_width) >= ((width - 4) - (dinfo->font_width * 2)))
/* if the filename is wider than the available space on the line, skip parts of it */
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_MIDDLE);
data = g_strdup_printf("<b>%s</b>", file_name);
pango_layout_set_markup(layout, data, -1);
pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
cairo_move_to(cr, 4, dinfo->line_height * 0.5);
pango_cairo_show_layout(cr, layout);
g_free(data);
g_free(file_name);
data = g_strdup_printf(_("<b>Page %d of %d</b>"), page_nr + 1, dinfo->n_pages);
pango_layout_set_markup(layout, data, -1);
pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
cairo_move_to(cr, 4, dinfo->line_height * 1.5);
pango_cairo_show_layout(cr, layout);
g_free(data);
datetime = utils_get_date_time(printing_prefs.page_header_datefmt, &(dinfo->print_time));
if (G_LIKELY(NZV(datetime)))
{
data = g_strdup_printf("<b>%s</b>", datetime);
pango_layout_set_markup(layout, data, -1);
pango_layout_set_alignment(layout, PANGO_ALIGN_RIGHT);
cairo_move_to(cr, 2, dinfo->line_height * 1.5);
pango_cairo_show_layout(cr, layout);
g_free(data);
}
g_free(datetime);
/* reset layout and re-position cairo context */
pango_layout_set_alignment(layout, PANGO_ALIGN_LEFT);
pango_layout_set_ellipsize(layout, FALSE);
pango_layout_set_justify(layout, FALSE);
pango_layout_set_width(layout, width * PANGO_SCALE);
cairo_move_to(cr, 0, dinfo->line_height * 3);
}
static void custom_widget_apply(GtkPrintOperation *operation, GtkWidget *widget, gpointer user_data)
{
PrintWidgets *w = user_data;
printing_prefs.print_line_numbers =
gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_linenumbers));
printing_prefs.print_page_numbers =
gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_pagenumbers));
printing_prefs.print_page_header =
gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_pageheader));
printing_prefs.page_header_basename =
gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(w->check_print_basename));
g_free(printing_prefs.page_header_datefmt);
printing_prefs.page_header_datefmt =
g_strdup(gtk_entry_get_text(GTK_ENTRY(w->entry_print_dateformat)));
}
static void on_page_header_toggled(GtkToggleButton *togglebutton, gpointer user_data)
{
gboolean sens = gtk_toggle_button_get_active(togglebutton);
PrintWidgets *w = user_data;
gtk_widget_set_sensitive(w->check_print_basename, sens);
gtk_widget_set_sensitive(w->entry_print_dateformat, sens);
}
static GtkWidget *create_custom_widget(GtkPrintOperation *operation, gpointer user_data)
{ /* copied from interface.c */
GtkWidget *page;
GtkWidget *frame33;
GtkWidget *alignment36;
GtkWidget *vbox30;
GtkWidget *hbox10;
GtkWidget *label203;
PrintWidgets *w = user_data;
gtk_print_operation_set_custom_tab_label(operation, _("Document Setup"));
page = gtk_vbox_new(FALSE, 0);
gtk_container_set_border_width(GTK_CONTAINER(page), 5);
w->check_print_linenumbers = gtk_check_button_new_with_mnemonic(_("Print line numbers"));
gtk_box_pack_start(GTK_BOX(page), w->check_print_linenumbers, FALSE, FALSE, 0);
gtk_widget_set_tooltip_text(w->check_print_linenumbers, _("Add line numbers to the printed page"));
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_linenumbers), printing_prefs.print_line_numbers);
w->check_print_pagenumbers = gtk_check_button_new_with_mnemonic(_("Print page numbers"));
gtk_box_pack_start(GTK_BOX(page), w->check_print_pagenumbers, FALSE, FALSE, 0);
gtk_widget_set_tooltip_text(w->check_print_pagenumbers, _("Add page numbers at the bottom of each page. It takes 2 lines of the page."));
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_pagenumbers), printing_prefs.print_page_numbers);
w->check_print_pageheader = gtk_check_button_new_with_mnemonic(_("Print page header"));
gtk_box_pack_start(GTK_BOX(page), w->check_print_pageheader, FALSE, FALSE, 0);
gtk_widget_set_tooltip_text(w->check_print_pageheader, _("Add a little header to every page containing the page number, the filename and the current date (see below). It takes 3 lines of the page."));
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_pageheader), printing_prefs.print_page_header);
g_signal_connect(w->check_print_pageheader, "toggled", G_CALLBACK(on_page_header_toggled), w);
frame33 = gtk_frame_new(NULL);
gtk_box_pack_start(GTK_BOX(page), frame33, FALSE, FALSE, 0);
gtk_frame_set_label_align(GTK_FRAME(frame33), 0, 0);
gtk_frame_set_shadow_type(GTK_FRAME(frame33), GTK_SHADOW_NONE);
alignment36 = gtk_alignment_new(0, 0.5, 1, 1);
gtk_container_add(GTK_CONTAINER(frame33), alignment36);
gtk_alignment_set_padding(GTK_ALIGNMENT(alignment36), 0, 0, 12, 0);
vbox30 = gtk_vbox_new(FALSE, 1);
gtk_container_add(GTK_CONTAINER(alignment36), vbox30);
w->check_print_basename = gtk_check_button_new_with_mnemonic(_("Use the basename of the printed file"));
gtk_box_pack_start(GTK_BOX(vbox30), w->check_print_basename, FALSE, FALSE, 0);
gtk_widget_set_tooltip_text(w->check_print_basename, _("Print only the basename(without the path) of the printed file"));
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w->check_print_basename), printing_prefs.page_header_basename);
hbox10 = gtk_hbox_new(FALSE, 5);
gtk_box_pack_start(GTK_BOX(vbox30), hbox10, TRUE, TRUE, 0);
label203 = gtk_label_new(_("Date format:"));
gtk_box_pack_start(GTK_BOX(hbox10), label203, FALSE, FALSE, 0);
w->entry_print_dateformat = gtk_entry_new();
ui_entry_add_clear_icon(GTK_ENTRY(w->entry_print_dateformat));
gtk_box_pack_start(GTK_BOX(hbox10), w->entry_print_dateformat, TRUE, TRUE, 0);
gtk_widget_set_tooltip_text(w->entry_print_dateformat, _("Specify a format for the date and time stamp which is added to the page header on each page. You can use any conversion specifiers which can be used with the ANSI C strftime function."));
gtk_entry_set_text(GTK_ENTRY(w->entry_print_dateformat), printing_prefs.page_header_datefmt);
on_page_header_toggled(GTK_TOGGLE_BUTTON(w->check_print_pageheader), w);
gtk_widget_show_all(page);
return page;
}
static void end_print(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
{
DocInfo *dinfo = user_data;
if (dinfo == NULL)
return;
gtk_widget_hide(main_widgets.progressbar);
g_object_unref(dinfo->layout);
}
static void begin_print(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
{
DocInfo *dinfo = user_data;
PangoFontDescription *desc;
gint i;
gint style_max;
if (dinfo == NULL)
return;
gtk_widget_show(main_widgets.progressbar);
desc = pango_font_description_from_string(interface_prefs.editor_font);
/* init dinfo fields */
dinfo->lines = sci_get_line_count(dinfo->doc->editor->sci);
dinfo->lines_per_page = 0;
dinfo->cur_line = 0;
dinfo->cur_pos = 0;
dinfo->long_line = FALSE;
dinfo->print_time = time(NULL);
dinfo->max_line_number_margin = get_line_numbers_arity(dinfo->lines) + 1;
/* increase font width by 1 (looks better) */
dinfo->font_width = get_font_width(context, desc) + 1;
/* create a PangoLayout to be commonly used in get_page_count and draw_page */
dinfo->layout = setup_pango_layout(context, desc);
/* this is necessary because of possible line breaks on the printed page and then
* lines_per_page differs from document line count */
dinfo->n_pages = get_page_count(context, dinfo);
/* read all styles from Scintilla */
style_max = pow(2, scintilla_send_message(dinfo->doc->editor->sci, SCI_GETSTYLEBITS, 0, 0));
/* if the lexer uses only the first 32 styles(style bits = 5),
* we need to add the pre-defined styles */
if (style_max == 32)
style_max = STYLE_LASTPREDEFINED;
for (i = 0; i < style_max; i++)
{
dinfo->styles[i][FORE] = ROTATE_RGB(scintilla_send_message(
dinfo->doc->editor->sci, SCI_STYLEGETFORE, i, 0));
if (i == STYLE_LINENUMBER)
{ /* ignore background colour for line number margin to avoid trouble with wrapped lines */
dinfo->styles[STYLE_LINENUMBER][BACK] = ROTATE_RGB(scintilla_send_message(
dinfo->doc->editor->sci, SCI_STYLEGETBACK, STYLE_DEFAULT, 0));
}
else
{
dinfo->styles[i][BACK] = ROTATE_RGB(scintilla_send_message(
dinfo->doc->editor->sci, SCI_STYLEGETBACK, i, 0));
}
/* use white background color unless foreground is white to save ink */
if (dinfo->styles[i][FORE] != 0xffffff)
dinfo->styles[i][BACK] = 0xffffff;
dinfo->styles[i][BOLD] =
scintilla_send_message(dinfo->doc->editor->sci, SCI_STYLEGETBOLD, i, 0);
dinfo->styles[i][ITALIC] =
scintilla_send_message(dinfo->doc->editor->sci, SCI_STYLEGETITALIC, i, 0);
}
if (dinfo->n_pages >= 0)
gtk_print_operation_set_n_pages(operation, dinfo->n_pages);
pango_font_description_free(desc);
}
static void draw_page(GtkPrintOperation *operation, GtkPrintContext *context,
gint page_nr, gpointer user_data)
{
DocInfo *dinfo = user_data;
GeanyEditor *editor;
cairo_t *cr;
gdouble width, height;
gdouble x = 0.0, y = 0.0;
/*gint layout_h;*/
gint count;
GString *str;
if (dinfo == NULL || page_nr >= dinfo->n_pages)
return;
editor = dinfo->doc->editor;
if (dinfo->n_pages > 0)
{
gdouble fraction = (page_nr + 1) / (gdouble) dinfo->n_pages;
gchar *text = g_strdup_printf(_("Page %d of %d"), page_nr, dinfo->n_pages);
gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(main_widgets.progressbar), fraction);
gtk_progress_bar_set_text(GTK_PROGRESS_BAR(main_widgets.progressbar), text);
g_free(text);
}
#ifdef GEANY_PRINT_DEBUG
geany_debug("draw_page = %d, pages = %d, (real) lines_per_page = %d",
page_nr, dinfo->n_pages, dinfo->lines_per_page);
#endif
str = g_string_sized_new(256);
cr = gtk_print_context_get_cairo_context(context);
width = gtk_print_context_get_width(context);
height = gtk_print_context_get_height(context);
cairo_set_source_rgb(cr, 0, 0, 0);
#ifdef GEANY_PRINT_DEBUG
cairo_set_line_width(cr, 0.2);
cairo_rectangle(cr, 0, 0, width, height);
cairo_stroke(cr);
#endif
cairo_move_to(cr, 0, 0);
pango_layout_set_width(dinfo->layout, width * PANGO_SCALE);
pango_layout_set_alignment(dinfo->layout, PANGO_ALIGN_LEFT);
pango_layout_set_ellipsize(dinfo->layout, FALSE);
pango_layout_set_justify(dinfo->layout, FALSE);
if (printing_prefs.print_page_header)
add_page_header(dinfo, cr, width, page_nr);
count = 0; /* the actual line counter for the current page, might be different from
* dinfo->cur_line due to possible line breaks */
while (count < dinfo->lines_per_page)
{
gchar c = 'a';
gint style = -1;
PangoAttrList *layout_attr;
PangoAttribute *attr;
gint colours[3] = { 0 };
gboolean add_linenumber = TRUE;
gboolean at_eol;
while (count < dinfo->lines_per_page && c != '\0')
{
at_eol = FALSE;
g_string_erase(str, 0, str->len); /* clear the string */
/* line numbers */
if (printing_prefs.print_line_numbers && add_linenumber)
{
/* if we had a wrapped line on the last page which needs to be continued, don't
* add a line number */
if (dinfo->long_line)
{
add_linenumber = FALSE;
}
else
{
gchar *line_number = NULL;
gint cur_line_number_margin = get_line_numbers_arity(dinfo->cur_line + 1);
gchar *fill = g_strnfill(
dinfo->max_line_number_margin - cur_line_number_margin - 1, ' ');
line_number = g_strdup_printf("%s%d ", fill, dinfo->cur_line + 1);
g_string_append(str, line_number);
dinfo->cur_line++; /* increase document line */
add_linenumber = FALSE;
style = STYLE_LINENUMBER;
c = 'a'; /* dummy value */
g_free(fill);
g_free(line_number);
}
}
/* data */
else
{
style = sci_get_style_at(dinfo->doc->editor->sci, dinfo->cur_pos);
c = sci_get_char_at(dinfo->doc->editor->sci, dinfo->cur_pos);
if (c == '\0' || style == -1)
{ /* if c gets 0, we are probably out of document boundaries,
* so stop to break out of outer loop */
count = dinfo->lines_per_page;
break;
}
dinfo->cur_pos++;
/* convert tabs to spaces which seems to be better than using Pango tabs */
if (c == '\t')
{
gint tab_width = sci_get_tab_width(editor->sci);
gchar *s = g_strnfill(tab_width, ' ');
g_string_append(str, s);
g_free(s);
}
/* don't add line breaks, they are handled manually below */
else if (c == '\r' || c == '\n')
{
gchar c_next = sci_get_char_at(dinfo->doc->editor->sci, dinfo->cur_pos);
at_eol = TRUE;
if (c == '\r' && c_next == '\n')
dinfo->cur_pos++; /* skip LF part of CR/LF */
}
else
{
g_string_append_c(str, c); /* finally add the character */
/* handle UTF-8: since we add char by char (better: byte by byte), we need to
* keep UTF-8 characters together(e.g. two bytes for one character)
* the input is always UTF-8 and c is signed, so all non-Ascii
* characters are less than 0 and consist of all bytes less than 0.
* style doesn't change since it is only one character with multiple bytes. */
while (c < 0)
{
c = sci_get_char_at(dinfo->doc->editor->sci, dinfo->cur_pos);
if (c < 0)
{ /* only add the byte when it is part of the UTF-8 character
* otherwise we could add e.g. a '\n' and it won't be visible in the
* printed document */
g_string_append_c(str, c);
dinfo->cur_pos++;
}
}
}
}
if (! at_eol)
{
/* set text */
pango_layout_set_text(dinfo->layout, str->str, -1);
/* attributes */
layout_attr = pango_attr_list_new();
/* foreground colour */
get_rgb_values(dinfo->styles[style][FORE], &colours[0], &colours[1], &colours[2]);
attr = pango_attr_foreground_new(colours[0], colours[1], colours[2]);
ADD_ATTR(layout_attr, attr);
/* background colour */
get_rgb_values(dinfo->styles[style][BACK], &colours[0], &colours[1], &colours[2]);
attr = pango_attr_background_new(colours[0], colours[1], colours[2]);
ADD_ATTR(layout_attr, attr);
/* bold text */
if (dinfo->styles[style][BOLD])
{
attr = pango_attr_weight_new(PANGO_WEIGHT_BOLD);
ADD_ATTR(layout_attr, attr);
}
/* italic text */
if (dinfo->styles[style][ITALIC])
{
attr = pango_attr_style_new(PANGO_STYLE_ITALIC);
ADD_ATTR(layout_attr, attr);
}
pango_layout_set_attributes(dinfo->layout, layout_attr);
pango_layout_context_changed(dinfo->layout);
pango_attr_list_unref(layout_attr);
}
cairo_get_current_point(cr, &x, &y);
/* normal line break at eol character in document */
if (at_eol)
{
/*pango_layout_get_size(dinfo->layout, NULL, &layout_h);*/
/*cairo_move_to(cr, 0, y + (gdouble)layout_h / PANGO_SCALE);*/
cairo_move_to(cr, 0, y + dinfo->line_height);
count++;
/* we added a new document line so request a new line number */
add_linenumber = TRUE;
}
else
{
gint x_offset = 0;
/* maybe we need to force a line break because of too long line */
if (x >= (width - dinfo->font_width))
{
/* don't start the line at horizontal origin because we need to skip the
* line number margin */
if (printing_prefs.print_line_numbers)
{
x_offset = (dinfo->max_line_number_margin + 1) * dinfo->font_width;
}
/*pango_layout_get_size(dinfo->layout, NULL, &layout_h);*/
/*cairo_move_to(cr, x_offset, y + (gdouble)layout_h / PANGO_SCALE);*/
/* this is faster but not exactly the same as above */
cairo_move_to(cr, x_offset, y + dinfo->line_height);
cairo_get_current_point(cr, &x, &y);
count++;
}
if (count < dinfo->lines_per_page)
{
/* str->len is counted in bytes not characters, so use g_utf8_strlen() */
x_offset = (g_utf8_strlen(str->str, -1) * dinfo->font_width);
if (dinfo->long_line && count == 0)
{
x_offset = (dinfo->max_line_number_margin + 1) * dinfo->font_width;
dinfo->long_line = FALSE;
}
pango_cairo_show_layout(cr, dinfo->layout);
cairo_move_to(cr, x + x_offset, y);
}
else
/* we are on a wrapped line but we are out of lines on this page, so continue
* the current line on the next page and remember to continue in current line */
dinfo->long_line = TRUE;
}
}
}
if (printing_prefs.print_line_numbers)
{ /* print a thin line between the line number margin and the data */
gint y_start = 0;
if (printing_prefs.print_page_header)
y_start = (dinfo->line_height * 3) - 2; /* "- 2": to connect the line number line to
* the page header frame */
cairo_set_line_width(cr, 0.3);
cairo_move_to(cr, (dinfo->max_line_number_margin * dinfo->font_width) + 1, y_start);
cairo_line_to(cr, (dinfo->max_line_number_margin * dinfo->font_width) + 1,
y + dinfo->line_height); /* y is last added line, we reuse it */
cairo_stroke(cr);
}
if (printing_prefs.print_page_numbers)
{
gchar *line = g_strdup_printf("<small>- %d -</small>", page_nr + 1);
pango_layout_set_markup(dinfo->layout, line, -1);
pango_layout_set_alignment(dinfo->layout, PANGO_ALIGN_CENTER);
cairo_move_to(cr, 0, height - dinfo->line_height);
pango_cairo_show_layout(cr, dinfo->layout);
g_free(line);
#ifdef GEANY_PRINT_DEBUG
cairo_set_line_width(cr, 0.3);
cairo_move_to(cr, 0, height - (1.25 * dinfo->line_height));
cairo_line_to(cr, width - 1, height - (1.25 * dinfo->line_height));
cairo_stroke(cr);
#endif
}
g_string_free(str, TRUE);
}
static void status_changed(GtkPrintOperation *op, gpointer data)
{
gchar *filename = (data != NULL) ? data : GEANY_STRING_UNTITLED;
if (gtk_print_operation_get_status(op) == GTK_PRINT_STATUS_FINISHED_ABORTED)
msgwin_status_add(_("Did not send document %s to the printing subsystem."), filename);
else if (gtk_print_operation_get_status(op) == GTK_PRINT_STATUS_FINISHED)
msgwin_status_add(_("Document %s was sent to the printing subsystem."), filename);
}
static void printing_print_gtk(GeanyDocument *doc)
{
GtkPrintOperation *op;
GtkPrintOperationResult res = GTK_PRINT_OPERATION_RESULT_ERROR;
GError *error = NULL;
DocInfo *dinfo;
PrintWidgets *widgets;
/** TODO check for monospace font, detect the widest character in the font and
* use it at font_width */
widgets = g_new0(PrintWidgets, 1);
dinfo = g_new0(DocInfo, 1);
/* all other fields are initialised in begin_print() */
dinfo->doc = doc;
op = gtk_print_operation_new();
gtk_print_operation_set_unit(op, GTK_UNIT_POINTS);
gtk_print_operation_set_show_progress(op, TRUE);
#if GTK_CHECK_VERSION(2, 18, 0)
gtk_print_operation_set_embed_page_setup(op, TRUE);
#endif
g_signal_connect(op, "begin-print", G_CALLBACK(begin_print), dinfo);
g_signal_connect(op, "end-print", G_CALLBACK(end_print), dinfo);
g_signal_connect(op, "draw-page", G_CALLBACK(draw_page), dinfo);
g_signal_connect(op, "status-changed", G_CALLBACK(status_changed), doc->file_name);
g_signal_connect(op, "create-custom-widget", G_CALLBACK(create_custom_widget), widgets);
g_signal_connect(op, "custom-widget-apply", G_CALLBACK(custom_widget_apply), widgets);
if (settings != NULL)
gtk_print_operation_set_print_settings(op, settings);
if (page_setup != NULL)
gtk_print_operation_set_default_page_setup(op, page_setup);
res = gtk_print_operation_run(
op, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG, GTK_WINDOW(main_widgets.window), &error);
if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
{
if (settings != NULL)
g_object_unref(settings);
settings = g_object_ref(gtk_print_operation_get_print_settings(op));
/* status message is printed in the status-changed handler */
}
else if (res == GTK_PRINT_OPERATION_RESULT_ERROR)
{
dialogs_show_msgbox(GTK_MESSAGE_ERROR, _("Printing of %s failed (%s)."),
doc->file_name, error->message);
g_error_free(error);
}
g_object_unref(op);
g_free(dinfo);
g_free(widgets);
}
void printing_page_setup_gtk(void)
{
GtkPageSetup *new_page_setup;
if (settings == NULL)
settings = gtk_print_settings_new();
new_page_setup = gtk_print_run_page_setup_dialog(
GTK_WINDOW(main_widgets.window), page_setup, settings);
if (page_setup != NULL)
g_object_unref(page_setup);
page_setup = new_page_setup;
}
/* simple file print using an external tool */
static void print_external(GeanyDocument *doc)
{
gchar *cmdline;
if (doc->file_name == NULL)
return;
if (! NZV(printing_prefs.external_print_cmd))
{
dialogs_show_msgbox(GTK_MESSAGE_ERROR,
_("Please set a print command in the preferences dialog first."));
return;
}
cmdline = g_strdup(printing_prefs.external_print_cmd);
utils_str_replace_all(&cmdline, "%f", doc->file_name);
if (dialogs_show_question(
_("The file \"%s\" will be printed with the following command:\n\n%s"),
doc->file_name, cmdline))
{
GError *error = NULL;
#ifdef G_OS_WIN32
gchar *tmp_cmdline = g_strdup(cmdline);
#else
/* /bin/sh -c emulates the system() call and makes complex commands possible
* but only needed on non-win32 systems due to the lack of win32's shell capabilities */
gchar *tmp_cmdline = g_strconcat("/bin/sh -c \"", cmdline, "\"", NULL);
#endif
if (! g_spawn_command_line_async(tmp_cmdline, &error))
{
dialogs_show_msgbox(GTK_MESSAGE_ERROR,
_("Printing of \"%s\" failed (return code: %s)."),
doc->file_name, error->message);
g_error_free(error);
}
else
{
msgwin_status_add(_("File %s printed."), doc->file_name);
}
g_free(tmp_cmdline);
}
g_free(cmdline);
}
void printing_print_doc(GeanyDocument *doc)
{
if (doc == NULL)
return;
if (printing_prefs.use_gtk_printing)
printing_print_gtk(doc);
else
print_external(doc);
}