forked from vim/vim
-
Notifications
You must be signed in to change notification settings - Fork 0
/
clipboard.c
2227 lines (2014 loc) · 53.8 KB
/
clipboard.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
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* clipboard.c: Functions to handle the clipboard
*/
#include "vim.h"
#ifdef FEAT_CYGWIN_WIN32_CLIPBOARD
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# include "winclip.pro"
#endif
// Functions for copying and pasting text between applications.
// This is always included in a GUI version, but may also be included when the
// clipboard and mouse is available to a terminal version such as xterm.
// Note: there are some more functions in ops.c that handle selection stuff.
//
// Also note that the majority of functions here deal with the X 'primary'
// (visible - for Visual mode use) selection, and only that. There are no
// versions of these for the 'clipboard' selection, as Visual mode has no use
// for them.
#if defined(FEAT_CLIPBOARD) || defined(PROTO)
/*
* Selection stuff using Visual mode, for cutting and pasting text to other
* windows.
*/
/*
* Call this to initialise the clipboard. Pass it FALSE if the clipboard code
* is included, but the clipboard can not be used, or TRUE if the clipboard can
* be used. Eg unix may call this with FALSE, then call it again with TRUE if
* the GUI starts.
*/
void
clip_init(int can_use)
{
Clipboard_T *cb;
cb = &clip_star;
for (;;)
{
cb->available = can_use;
cb->owned = FALSE;
cb->start.lnum = 0;
cb->start.col = 0;
cb->end.lnum = 0;
cb->end.col = 0;
cb->state = SELECT_CLEARED;
if (cb == &clip_plus)
break;
cb = &clip_plus;
}
}
/*
* Check whether the VIsual area has changed, and if so try to become the owner
* of the selection, and free any old converted selection we may still have
* lying around. If the VIsual mode has ended, make a copy of what was
* selected so we can still give it to others. Will probably have to make sure
* this is called whenever VIsual mode is ended.
*/
void
clip_update_selection(Clipboard_T *clip)
{
pos_T start, end;
// If visual mode is only due to a redo command ("."), then ignore it
if (!redo_VIsual_busy && VIsual_active && (State & MODE_NORMAL))
{
if (LT_POS(VIsual, curwin->w_cursor))
{
start = VIsual;
end = curwin->w_cursor;
if (has_mbyte)
end.col += (*mb_ptr2len)(ml_get_cursor()) - 1;
}
else
{
start = curwin->w_cursor;
end = VIsual;
}
if (!EQUAL_POS(clip->start, start)
|| !EQUAL_POS(clip->end, end)
|| clip->vmode != VIsual_mode)
{
clip_clear_selection(clip);
clip->start = start;
clip->end = end;
clip->vmode = VIsual_mode;
clip_free_selection(clip);
clip_own_selection(clip);
clip_gen_set_selection(clip);
}
}
}
static int
clip_gen_own_selection(Clipboard_T *cbd)
{
#ifdef FEAT_XCLIPBOARD
# ifdef FEAT_GUI
if (gui.in_use)
return clip_mch_own_selection(cbd);
else
# endif
return clip_xterm_own_selection(cbd);
#else
return clip_mch_own_selection(cbd);
#endif
}
void
clip_own_selection(Clipboard_T *cbd)
{
/*
* Also want to check somehow that we are reading from the keyboard rather
* than a mapping etc.
*/
#ifdef FEAT_X11
// Always own the selection, we might have lost it without being
// notified, e.g. during a ":sh" command.
if (cbd->available)
{
int was_owned = cbd->owned;
cbd->owned = (clip_gen_own_selection(cbd) == OK);
if (!was_owned && (cbd == &clip_star || cbd == &clip_plus))
{
// May have to show a different kind of highlighting for the
// selected area. There is no specific redraw command for this,
// just redraw all windows on the current buffer.
if (cbd->owned
&& (get_real_state() == MODE_VISUAL
|| get_real_state() == MODE_SELECT)
&& (cbd == &clip_star ? clip_isautosel_star()
: clip_isautosel_plus())
&& HL_ATTR(HLF_V) != HL_ATTR(HLF_VNC))
redraw_curbuf_later(UPD_INVERTED_ALL);
}
}
#else
// Only own the clipboard when we didn't own it yet.
if (!cbd->owned && cbd->available)
cbd->owned = (clip_gen_own_selection(cbd) == OK);
#endif
}
static void
clip_gen_lose_selection(Clipboard_T *cbd)
{
#ifdef FEAT_XCLIPBOARD
# ifdef FEAT_GUI
if (gui.in_use)
clip_mch_lose_selection(cbd);
else
# endif
clip_xterm_lose_selection(cbd);
#else
clip_mch_lose_selection(cbd);
#endif
}
void
clip_lose_selection(Clipboard_T *cbd)
{
#ifdef FEAT_X11
int was_owned = cbd->owned;
#endif
int visual_selection = FALSE;
if (cbd == &clip_star || cbd == &clip_plus)
visual_selection = TRUE;
clip_free_selection(cbd);
cbd->owned = FALSE;
if (visual_selection)
clip_clear_selection(cbd);
clip_gen_lose_selection(cbd);
#ifdef FEAT_X11
if (visual_selection)
{
// May have to show a different kind of highlighting for the selected
// area. There is no specific redraw command for this, just redraw all
// windows on the current buffer.
if (was_owned
&& (get_real_state() == MODE_VISUAL
|| get_real_state() == MODE_SELECT)
&& (cbd == &clip_star ?
clip_isautosel_star() : clip_isautosel_plus())
&& HL_ATTR(HLF_V) != HL_ATTR(HLF_VNC)
&& !exiting)
{
update_curbuf(UPD_INVERTED_ALL);
setcursor();
cursor_on();
out_flush_cursor(TRUE, FALSE);
}
}
#endif
}
static void
clip_copy_selection(Clipboard_T *clip)
{
if (VIsual_active && (State & MODE_NORMAL) && clip->available)
{
clip_update_selection(clip);
clip_free_selection(clip);
clip_own_selection(clip);
if (clip->owned)
clip_get_selection(clip);
clip_gen_set_selection(clip);
}
}
/*
* Save and restore clip_unnamed before doing possibly many changes. This
* prevents accessing the clipboard very often which might slow down Vim
* considerably.
*/
static int global_change_count = 0; // if set, inside a start_global_changes
static int clipboard_needs_update = FALSE; // clipboard needs to be updated
static int clip_did_set_selection = TRUE;
/*
* Save clip_unnamed and reset it.
*/
void
start_global_changes(void)
{
if (++global_change_count > 1)
return;
clip_unnamed_saved = clip_unnamed;
clipboard_needs_update = FALSE;
if (clip_did_set_selection)
{
clip_unnamed = 0;
clip_did_set_selection = FALSE;
}
}
/*
* Return TRUE if setting the clipboard was postponed, it already contains the
* right text.
*/
static int
is_clipboard_needs_update(void)
{
return clipboard_needs_update;
}
/*
* Restore clip_unnamed and set the selection when needed.
*/
void
end_global_changes(void)
{
if (--global_change_count > 0)
// recursive
return;
if (!clip_did_set_selection)
{
clip_did_set_selection = TRUE;
clip_unnamed = clip_unnamed_saved;
clip_unnamed_saved = 0;
if (clipboard_needs_update)
{
// only store something in the clipboard,
// if we have yanked anything to it
if (clip_unnamed & CLIP_UNNAMED)
{
clip_own_selection(&clip_star);
clip_gen_set_selection(&clip_star);
}
if (clip_unnamed & CLIP_UNNAMED_PLUS)
{
clip_own_selection(&clip_plus);
clip_gen_set_selection(&clip_plus);
}
}
}
clipboard_needs_update = FALSE;
}
/*
* Called when Visual mode is ended: update the selection.
*/
void
clip_auto_select(void)
{
if (clip_isautosel_star())
clip_copy_selection(&clip_star);
if (clip_isautosel_plus())
clip_copy_selection(&clip_plus);
}
/*
* Return TRUE if automatic selection of Visual area is desired for the *
* register.
*/
int
clip_isautosel_star(void)
{
return (
#ifdef FEAT_GUI
gui.in_use ? (vim_strchr(p_go, GO_ASEL) != NULL) :
#endif
clip_autoselect_star);
}
/*
* Return TRUE if automatic selection of Visual area is desired for the +
* register.
*/
int
clip_isautosel_plus(void)
{
return (
#ifdef FEAT_GUI
gui.in_use ? (vim_strchr(p_go, GO_ASELPLUS) != NULL) :
#endif
clip_autoselect_plus);
}
/*
* Stuff for general mouse selection, without using Visual mode.
*/
/*
* Compare two screen positions ala strcmp()
*/
static int
clip_compare_pos(
int row1,
int col1,
int row2,
int col2)
{
if (row1 > row2) return(1);
if (row1 < row2) return(-1);
if (col1 > col2) return(1);
if (col1 < col2) return(-1);
return(0);
}
// "how" flags for clip_invert_area()
#define CLIP_CLEAR 1
#define CLIP_SET 2
#define CLIP_TOGGLE 3
/*
* Invert or un-invert a rectangle of the screen.
* "invert" is true if the result is inverted.
*/
static void
clip_invert_rectangle(
Clipboard_T *cbd UNUSED,
int row_arg,
int col_arg,
int height_arg,
int width_arg,
int invert)
{
int row = row_arg;
int col = col_arg;
int height = height_arg;
int width = width_arg;
#ifdef FEAT_PROP_POPUP
// this goes on top of all popup windows
screen_zindex = CLIP_ZINDEX;
if (col < cbd->min_col)
{
width -= cbd->min_col - col;
col = cbd->min_col;
}
if (width > cbd->max_col - col)
width = cbd->max_col - col;
if (row < cbd->min_row)
{
height -= cbd->min_row - row;
row = cbd->min_row;
}
if (height > cbd->max_row - row + 1)
height = cbd->max_row - row + 1;
#endif
#ifdef FEAT_GUI
if (gui.in_use)
gui_mch_invert_rectangle(row, col, height, width);
else
#endif
screen_draw_rectangle(row, col, height, width, invert);
#ifdef FEAT_PROP_POPUP
screen_zindex = 0;
#endif
}
/*
* Invert a region of the display between a starting and ending row and column
* Values for "how":
* CLIP_CLEAR: undo inversion
* CLIP_SET: set inversion
* CLIP_TOGGLE: set inversion if pos1 < pos2, undo inversion otherwise.
* 0: invert (GUI only).
*/
static void
clip_invert_area(
Clipboard_T *cbd,
int row1,
int col1,
int row2,
int col2,
int how)
{
int invert = FALSE;
int max_col;
#ifdef FEAT_PROP_POPUP
max_col = cbd->max_col - 1;
#else
max_col = Columns - 1;
#endif
if (how == CLIP_SET)
invert = TRUE;
// Swap the from and to positions so the from is always before
if (clip_compare_pos(row1, col1, row2, col2) > 0)
{
int tmp_row, tmp_col;
tmp_row = row1;
tmp_col = col1;
row1 = row2;
col1 = col2;
row2 = tmp_row;
col2 = tmp_col;
}
else if (how == CLIP_TOGGLE)
invert = TRUE;
// If all on the same line, do it the easy way
if (row1 == row2)
{
clip_invert_rectangle(cbd, row1, col1, 1, col2 - col1, invert);
}
else
{
// Handle a piece of the first line
if (col1 > 0)
{
clip_invert_rectangle(cbd, row1, col1, 1,
(int)Columns - col1, invert);
row1++;
}
// Handle a piece of the last line
if (col2 < max_col)
{
clip_invert_rectangle(cbd, row2, 0, 1, col2, invert);
row2--;
}
// Handle the rectangle that's left
if (row2 >= row1)
clip_invert_rectangle(cbd, row1, 0, row2 - row1 + 1,
(int)Columns, invert);
}
}
/*
* Start, continue or end a modeless selection. Used when editing the
* command-line, in the cmdline window and when the mouse is in a popup window.
*/
void
clip_modeless(int button, int is_click, int is_drag)
{
int repeat;
repeat = ((clip_star.mode == SELECT_MODE_CHAR
|| clip_star.mode == SELECT_MODE_LINE)
&& (mod_mask & MOD_MASK_2CLICK))
|| (clip_star.mode == SELECT_MODE_WORD
&& (mod_mask & MOD_MASK_3CLICK));
if (is_click && button == MOUSE_RIGHT)
{
// Right mouse button: If there was no selection, start one.
// Otherwise extend the existing selection.
if (clip_star.state == SELECT_CLEARED)
clip_start_selection(mouse_col, mouse_row, FALSE);
clip_process_selection(button, mouse_col, mouse_row, repeat);
}
else if (is_click)
clip_start_selection(mouse_col, mouse_row, repeat);
else if (is_drag)
{
// Don't try extending a selection if there isn't one. Happens when
// button-down is in the cmdline and them moving mouse upwards.
if (clip_star.state != SELECT_CLEARED)
clip_process_selection(button, mouse_col, mouse_row, repeat);
}
else // release
clip_process_selection(MOUSE_RELEASE, mouse_col, mouse_row, FALSE);
}
/*
* Update the currently selected region by adding and/or subtracting from the
* beginning or end and inverting the changed area(s).
*/
static void
clip_update_modeless_selection(
Clipboard_T *cb,
int row1,
int col1,
int row2,
int col2)
{
// See if we changed at the beginning of the selection
if (row1 != cb->start.lnum || col1 != (int)cb->start.col)
{
clip_invert_area(cb, row1, col1, (int)cb->start.lnum, cb->start.col,
CLIP_TOGGLE);
cb->start.lnum = row1;
cb->start.col = col1;
}
// See if we changed at the end of the selection
if (row2 != cb->end.lnum || col2 != (int)cb->end.col)
{
clip_invert_area(cb, (int)cb->end.lnum, cb->end.col, row2, col2,
CLIP_TOGGLE);
cb->end.lnum = row2;
cb->end.col = col2;
}
}
/*
* Find the starting and ending positions of the word at the given row and
* column. Only white-separated words are recognized here.
*/
#define CHAR_CLASS(c) (c <= ' ' ? ' ' : vim_iswordc(c))
static void
clip_get_word_boundaries(Clipboard_T *cb, int row, int col)
{
int start_class;
int temp_col;
char_u *p;
int mboff;
if (row >= screen_Rows || col >= screen_Columns || ScreenLines == NULL)
return;
p = ScreenLines + LineOffset[row];
// Correct for starting in the right half of a double-wide char
if (enc_dbcs != 0)
col -= dbcs_screen_head_off(p, p + col);
else if (enc_utf8 && p[col] == 0)
--col;
start_class = CHAR_CLASS(p[col]);
temp_col = col;
for ( ; temp_col > 0; temp_col--)
if (enc_dbcs != 0
&& (mboff = dbcs_screen_head_off(p, p + temp_col - 1)) > 0)
temp_col -= mboff;
else if (CHAR_CLASS(p[temp_col - 1]) != start_class
&& !(enc_utf8 && p[temp_col - 1] == 0))
break;
cb->word_start_col = temp_col;
temp_col = col;
for ( ; temp_col < screen_Columns; temp_col++)
if (enc_dbcs != 0 && dbcs_ptr2cells(p + temp_col) == 2)
++temp_col;
else if (CHAR_CLASS(p[temp_col]) != start_class
&& !(enc_utf8 && p[temp_col] == 0))
break;
cb->word_end_col = temp_col;
}
/*
* Find the column position for the last non-whitespace character on the given
* line at or before start_col.
*/
static int
clip_get_line_end(Clipboard_T *cbd UNUSED, int row)
{
int i;
if (row >= screen_Rows || ScreenLines == NULL)
return 0;
for (i =
#ifdef FEAT_PROP_POPUP
cbd->max_col;
#else
screen_Columns;
#endif
i > 0; i--)
if (ScreenLines[LineOffset[row] + i - 1] != ' ')
break;
return i;
}
/*
* Start the selection
*/
void
clip_start_selection(int col, int row, int repeated_click)
{
Clipboard_T *cb = &clip_star;
#ifdef FEAT_PROP_POPUP
win_T *wp;
int row_cp = row;
int col_cp = col;
wp = mouse_find_win(&row_cp, &col_cp, FIND_POPUP);
if (wp != NULL && WIN_IS_POPUP(wp)
&& popup_is_in_scrollbar(wp, row_cp, col_cp))
// click or double click in scrollbar does not start a selection
return;
#endif
if (cb->state == SELECT_DONE)
clip_clear_selection(cb);
row = check_row(row);
col = check_col(col);
col = mb_fix_col(col, row);
cb->start.lnum = row;
cb->start.col = col;
cb->end = cb->start;
cb->origin_row = (short_u)cb->start.lnum;
cb->state = SELECT_IN_PROGRESS;
#ifdef FEAT_PROP_POPUP
if (wp != NULL && WIN_IS_POPUP(wp))
{
// Click in a popup window restricts selection to that window,
// excluding the border.
cb->min_col = wp->w_wincol + wp->w_popup_border[3];
cb->max_col = wp->w_wincol + popup_width(wp)
- wp->w_popup_border[1] - wp->w_has_scrollbar;
if (cb->max_col > screen_Columns)
cb->max_col = screen_Columns;
cb->min_row = wp->w_winrow + wp->w_popup_border[0];
cb->max_row = wp->w_winrow + popup_height(wp) - 1
- wp->w_popup_border[2];
}
else
{
cb->min_col = 0;
cb->max_col = screen_Columns;
cb->min_row = 0;
cb->max_row = screen_Rows;
}
#endif
if (repeated_click)
{
if (++cb->mode > SELECT_MODE_LINE)
cb->mode = SELECT_MODE_CHAR;
}
else
cb->mode = SELECT_MODE_CHAR;
#ifdef FEAT_GUI
// clear the cursor until the selection is made
if (gui.in_use)
gui_undraw_cursor();
#endif
switch (cb->mode)
{
case SELECT_MODE_CHAR:
cb->origin_start_col = cb->start.col;
cb->word_end_col = clip_get_line_end(cb, (int)cb->start.lnum);
break;
case SELECT_MODE_WORD:
clip_get_word_boundaries(cb, (int)cb->start.lnum, cb->start.col);
cb->origin_start_col = cb->word_start_col;
cb->origin_end_col = cb->word_end_col;
clip_invert_area(cb, (int)cb->start.lnum, cb->word_start_col,
(int)cb->end.lnum, cb->word_end_col, CLIP_SET);
cb->start.col = cb->word_start_col;
cb->end.col = cb->word_end_col;
break;
case SELECT_MODE_LINE:
clip_invert_area(cb, (int)cb->start.lnum, 0, (int)cb->start.lnum,
(int)Columns, CLIP_SET);
cb->start.col = 0;
cb->end.col = Columns;
break;
}
cb->prev = cb->start;
#ifdef DEBUG_SELECTION
printf("Selection started at (%ld,%d)\n", cb->start.lnum, cb->start.col);
#endif
}
/*
* Continue processing the selection
*/
void
clip_process_selection(
int button,
int col,
int row,
int_u repeated_click)
{
Clipboard_T *cb = &clip_star;
int diff;
int slen = 1; // cursor shape width
if (button == MOUSE_RELEASE)
{
if (cb->state != SELECT_IN_PROGRESS)
return;
// Check to make sure we have something selected
if (cb->start.lnum == cb->end.lnum && cb->start.col == cb->end.col)
{
#ifdef FEAT_GUI
if (gui.in_use)
gui_update_cursor(FALSE, FALSE);
#endif
cb->state = SELECT_CLEARED;
return;
}
#ifdef DEBUG_SELECTION
printf("Selection ended: (%ld,%d) to (%ld,%d)\n", cb->start.lnum,
cb->start.col, cb->end.lnum, cb->end.col);
#endif
if (clip_isautosel_star()
|| (
#ifdef FEAT_GUI
gui.in_use ? (vim_strchr(p_go, GO_ASELML) != NULL) :
#endif
clip_autoselectml))
clip_copy_modeless_selection(FALSE);
#ifdef FEAT_GUI
if (gui.in_use)
gui_update_cursor(FALSE, FALSE);
#endif
cb->state = SELECT_DONE;
return;
}
row = check_row(row);
col = check_col(col);
col = mb_fix_col(col, row);
if (col == (int)cb->prev.col && row == cb->prev.lnum && !repeated_click)
return;
/*
* When extending the selection with the right mouse button, swap the
* start and end if the position is before half the selection
*/
if (cb->state == SELECT_DONE && button == MOUSE_RIGHT)
{
/*
* If the click is before the start, or the click is inside the
* selection and the start is the closest side, set the origin to the
* end of the selection.
*/
if (clip_compare_pos(row, col, (int)cb->start.lnum, cb->start.col) < 0
|| (clip_compare_pos(row, col,
(int)cb->end.lnum, cb->end.col) < 0
&& (((cb->start.lnum == cb->end.lnum
&& cb->end.col - col > col - cb->start.col))
|| ((diff = (cb->end.lnum - row) -
(row - cb->start.lnum)) > 0
|| (diff == 0 && col < (int)(cb->start.col +
cb->end.col) / 2)))))
{
cb->origin_row = (short_u)cb->end.lnum;
cb->origin_start_col = cb->end.col - 1;
cb->origin_end_col = cb->end.col;
}
else
{
cb->origin_row = (short_u)cb->start.lnum;
cb->origin_start_col = cb->start.col;
cb->origin_end_col = cb->start.col;
}
if (cb->mode == SELECT_MODE_WORD && !repeated_click)
cb->mode = SELECT_MODE_CHAR;
}
// set state, for when using the right mouse button
cb->state = SELECT_IN_PROGRESS;
#ifdef DEBUG_SELECTION
printf("Selection extending to (%d,%d)\n", row, col);
#endif
if (repeated_click && ++cb->mode > SELECT_MODE_LINE)
cb->mode = SELECT_MODE_CHAR;
switch (cb->mode)
{
case SELECT_MODE_CHAR:
// If we're on a different line, find where the line ends
if (row != cb->prev.lnum)
cb->word_end_col = clip_get_line_end(cb, row);
// See if we are before or after the origin of the selection
if (clip_compare_pos(row, col, cb->origin_row,
cb->origin_start_col) >= 0)
{
if (col >= (int)cb->word_end_col)
clip_update_modeless_selection(cb, cb->origin_row,
cb->origin_start_col, row, (int)Columns);
else
{
if (has_mbyte && mb_lefthalve(row, col))
slen = 2;
clip_update_modeless_selection(cb, cb->origin_row,
cb->origin_start_col, row, col + slen);
}
}
else
{
if (has_mbyte
&& mb_lefthalve(cb->origin_row, cb->origin_start_col))
slen = 2;
if (col >= (int)cb->word_end_col)
clip_update_modeless_selection(cb, row, cb->word_end_col,
cb->origin_row, cb->origin_start_col + slen);
else
clip_update_modeless_selection(cb, row, col,
cb->origin_row, cb->origin_start_col + slen);
}
break;
case SELECT_MODE_WORD:
// If we are still within the same word, do nothing
if (row == cb->prev.lnum && col >= (int)cb->word_start_col
&& col < (int)cb->word_end_col && !repeated_click)
return;
// Get new word boundaries
clip_get_word_boundaries(cb, row, col);
// Handle being after the origin point of selection
if (clip_compare_pos(row, col, cb->origin_row,
cb->origin_start_col) >= 0)
clip_update_modeless_selection(cb, cb->origin_row,
cb->origin_start_col, row, cb->word_end_col);
else
clip_update_modeless_selection(cb, row, cb->word_start_col,
cb->origin_row, cb->origin_end_col);
break;
case SELECT_MODE_LINE:
if (row == cb->prev.lnum && !repeated_click)
return;
if (clip_compare_pos(row, col, cb->origin_row,
cb->origin_start_col) >= 0)
clip_update_modeless_selection(cb, cb->origin_row, 0, row,
(int)Columns);
else
clip_update_modeless_selection(cb, row, 0, cb->origin_row,
(int)Columns);
break;
}
cb->prev.lnum = row;
cb->prev.col = col;
#ifdef DEBUG_SELECTION
printf("Selection is: (%ld,%d) to (%ld,%d)\n", cb->start.lnum,
cb->start.col, cb->end.lnum, cb->end.col);
#endif
}
# if defined(FEAT_GUI) || defined(PROTO)
/*
* Redraw part of the selection if character at "row,col" is inside of it.
* Only used for the GUI.
*/
void
clip_may_redraw_selection(int row, int col, int len)
{
int start = col;
int end = col + len;
if (clip_star.state != SELECT_CLEARED
&& row >= clip_star.start.lnum
&& row <= clip_star.end.lnum)
{
if (row == clip_star.start.lnum && start < (int)clip_star.start.col)
start = clip_star.start.col;
if (row == clip_star.end.lnum && end > (int)clip_star.end.col)
end = clip_star.end.col;
if (end > start)
clip_invert_area(&clip_star, row, start, row, end, 0);
}
}
# endif
/*
* Called from outside to clear selected region from the display
*/
void
clip_clear_selection(Clipboard_T *cbd)
{
if (cbd->state == SELECT_CLEARED)
return;
clip_invert_area(cbd, (int)cbd->start.lnum, cbd->start.col,
(int)cbd->end.lnum, cbd->end.col, CLIP_CLEAR);
cbd->state = SELECT_CLEARED;
}
/*
* Clear the selection if any lines from "row1" to "row2" are inside of it.
*/
void
clip_may_clear_selection(int row1, int row2)
{
if (clip_star.state == SELECT_DONE
&& row2 >= clip_star.start.lnum
&& row1 <= clip_star.end.lnum)
clip_clear_selection(&clip_star);
}
/*
* Called before the screen is scrolled up or down. Adjusts the line numbers
* of the selection. Call with big number when clearing the screen.
*/
void
clip_scroll_selection(
int rows) // negative for scroll down
{
int lnum;
if (clip_star.state == SELECT_CLEARED)
return;
lnum = clip_star.start.lnum - rows;
if (lnum <= 0)
clip_star.start.lnum = 0;
else if (lnum >= screen_Rows) // scrolled off of the screen
clip_star.state = SELECT_CLEARED;
else
clip_star.start.lnum = lnum;
lnum = clip_star.end.lnum - rows;
if (lnum < 0) // scrolled off of the screen
clip_star.state = SELECT_CLEARED;
else if (lnum >= screen_Rows)
clip_star.end.lnum = screen_Rows - 1;
else
clip_star.end.lnum = lnum;
}
/*
* Copy the currently selected area into the '*' register so it will be
* available for pasting.
* When "both" is TRUE also copy to the '+' register.
*/
void
clip_copy_modeless_selection(int both UNUSED)
{
char_u *buffer;
char_u *bufp;
int row;
int start_col;
int end_col;
int line_end_col;
int add_newline_flag = FALSE;
int len;
char_u *p;
int row1 = clip_star.start.lnum;