forked from b4winckler/macvim
-
Notifications
You must be signed in to change notification settings - Fork 0
/
gui_riscos.c
3558 lines (3131 loc) · 83.4 KB
/
gui_riscos.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:
*
* 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.
*/
#include "vim.h"
#include <string.h>
/*
* gui_riscos.c
*
* Thomas Leonard <tal197@ecs.soton.ac.uk>
* Updated by Andy Wingate <andy@sparse.net>
*/
extern int time_of_last_poll;
int task_handle = 0; /* Zero means we are not yet a Wimp task */
int child_handle = 0; /* Task handle of our child process (zero if none). */
int *wimp_menu = (int *) -1; /* Pointer to a Wimp menu structure (or -1) */
int save_window = -1; /* Save As window handle */
int *redraw_block = NULL; /* NULL means not in a redraw loop. */
int ro_return_early = FALSE; /* Break out of gui_mch_wait_for_chars() */
int leaf_ref = 0; /* Wimp message number - send via Wimp$Scrap */
char_u *leaf_name = NULL; /* Leaf name from DataSave */
int default_columns = 120; /* These values are used if the --rows and --columns */
int default_rows = 32; /* options aren't used on startup. */
#define DRAG_FALSE 0
#define DRAG_SELECTION 1
#define DRAG_RESIZE_WINDOW 2
int ro_dragging = DRAG_FALSE;
int drag_button;
int drag_modifiers;
int drag_x_offset;
int drag_y_offset;
int nested_wimp = FALSE; /* Bool - can we use the new wimp? */
int changed_mode = FALSE;
int x_eigen_factor;
int y_eigen_factor;
/* If ro_current_font is non-zero then use the outline font with that handle,
* otherwise, if zap_redraw is TRUE then use ZapRedraw, otherwise use the
* system font.
*
* If zap_redraw is TRUE then zap_file[] contains valid Zap font file
* pointers (or NULLs).
*/
int ro_current_font = 0; /* 0 is system font, or ZapRedraw */
int font_x_offset = 0; /* Where to position each char in its box */
int font_y_offset = 0;
int zap_redraw = FALSE;
int double_height = FALSE; /* Plot each line twice? */
#define grgb(r,g,b) ((b<<16) + (g<<8) + (r))
#define UNUSED_COLOUR (gui.back_pixel)
#define RO_LOAD_CLIPBOARD -2 /* Internal handle for DataSave message. */
/* Changes by John Kortink, 22-23 July 1998
*
* Stuff to make redraw a lot faster. Almost all of it is right here below,
* elsewhere changes are marked with 'JK230798'. Apart from a small change in
* 'gui.c' all changes are limited to this file, 'gui_riscos.c'. The change in
* 'gui.c' is to make Vim stop being 'smart' not redrawing characters that are
* 'already there' (i.e. from the previous line, by coincidence). This caused a
* lot more calls to the redraw code, which we want to avoid because a few nice
* big strings at a time is a lot faster than a truckload of small ones. ('Dear
* Bram ...').
*/
/* The ZapRedraw structure */
static struct
{
int r_flags;
int r_minx;
int r_miny;
int r_maxx;
int r_maxy;
int r_screen;
int r_bpl;
int r_bpp;
int r_charw;
int r_charh;
char *r_caddr;
int r_cbpl;
int r_cbpc;
int r_linesp;
int r_data;
int r_scrollx;
int r_scrolly;
int *r_palette;
int r_for;
int r_bac;
char *r_workarea;
int r_magx;
int r_magy;
int r_xsize;
int r_ysize;
int r_mode;
}
zap_redraw_block;
/* Other globals */
static int zap_redraw_initialised = FALSE;
static int zap_redraw_update_colours;
static int zap_redraw_colours[2];
static int zap_redraw_palette[16];
/* Holds the current Zap font file(s).
* The font is recreated from this block on a mode change.
* When using zap, element ZAP_NORMAL is always valid, but
* the others can be NULL.
*/
#define ZAP_NORMAL 0
#define ZAP_BOLD 1
#define ZAP_ITALIC 2
#define ZAP_BITALIC 3
#define ZAP_STYLES 4
/* Zap font file format data */
static char *zap_file[ZAP_STYLES] = {NULL, NULL, NULL, NULL};
/* r_caddr format for current mode */
static char *zap_caddr[ZAP_STYLES] = {NULL, NULL, NULL, NULL};
static void ro_remove_menu(int *menu);
/*
* Initialise all the ZapRedraw stuff.
* Call this when changing font and after each mode change.
* zap_redraw_bitmap must contain a valid Zap font file (possibly
* created from the system font).
*
* Return FAIL to revert to system font (if we can't use ZapRedraw).
*/
int
ro_zap_redraw_initialise()
{
int bytes_per_bitmap_char;
int first, last;
int i;
/* Can't have initialisers for struct members :-(, ok, this way then ... */
if (!zap_redraw_initialised)
{
zap_redraw_block.r_workarea = NULL;
zap_redraw_initialised = TRUE;
}
/* We redraw in DSA mode */
zap_redraw_block.r_flags = 0x0;
/* Let ZapRedraw get the screen address for us */
zap_redraw_block.r_screen = 0;
/* Read the font width and height from the font file header.
* Assume that all styles are the same size.
* ZAP_NORMAL is always present.
*/
zap_redraw_block.r_charw = ((int *) zap_file[ZAP_NORMAL])[2];
zap_redraw_block.r_charh = ((int *) zap_file[ZAP_NORMAL])[3];
/* We have no linespacing */
zap_redraw_block.r_linesp = 0;
/* Fix foreground = colour 1 */
zap_redraw_block.r_for = 1;
/* Fix background = colour 0 */
zap_redraw_block.r_bac = 0;
/* Colour mask buffer */
zap_redraw_block.r_palette = zap_redraw_palette;
/* Allocate local workspace (for the few calls following here) */
if (zap_redraw_block.r_workarea != NULL)
free(zap_redraw_block.r_workarea);
zap_redraw_block.r_workarea = (char*) malloc(128);
if (!zap_redraw_block.r_workarea)
return FAIL; /* Out of memory */
/* Fill in VDU variables */
if (xswi(ZapRedraw_ReadVduVars, 0, &zap_redraw_block) & v_flag)
return FAIL; /* Can't find ZapRedraw module - use VDU instead */
/* Determine cbpl and cbpc */
swi(ZapRedraw_CachedCharSize, zap_redraw_block.r_bpp, 0,
zap_redraw_block.r_charw, zap_redraw_block.r_charh);
zap_redraw_block.r_cbpl = r2;
zap_redraw_block.r_cbpc = r3;
/* Allocate general workspace (for the calls outside) */
if (zap_redraw_block.r_workarea != NULL)
free(zap_redraw_block.r_workarea);
zap_redraw_block.r_workarea = (char*) malloc(128 + zap_redraw_block.r_cbpl);
if (!zap_redraw_block.r_workarea)
return FAIL; /* Out of memory */
/* Now convert the 1 bpp character data ready for the current mode */
bytes_per_bitmap_char = (zap_redraw_block.r_charw * zap_redraw_block.r_charh + 7) / 8;
/* Convert the fonts from 1bpp to a format suitable for the
* current mode.
*/
for (i = 0; i < ZAP_STYLES; i++)
{
first = ((int *) zap_file[i])[4];
last = ((int *) zap_file[i])[5];
if (last > 255)
last = 255; /* Don't convert cursors (overwrites memory!) */
/* Allocate the font cache */
vim_free(zap_caddr[i]);
if (zap_file[i])
zap_caddr[i] = (char*) malloc(zap_redraw_block.r_cbpc * 256);
else
zap_caddr[i] = NULL; /* No file for this style */
if (zap_caddr[i])
{
zap_redraw_block.r_caddr = zap_caddr[i];
swi(ZapRedraw_ConvertBitmap, 0, &zap_redraw_block,
first, last, /* Range of characters to convert */
zap_file[i] + 0x20 /* Addr of first char provided by font */
- first * bytes_per_bitmap_char);
}
}
if (!zap_caddr[ZAP_NORMAL])
{
zap_redraw = FALSE; /* Out of memory */
return FAIL;
}
/* Next time we need them, we have to update the colour masks */
zap_redraw_update_colours = TRUE;
return OK;
}
/*
* Redraw a string at OS coordinates <x,y> (top-left, x inclusive, y exclusive).
* Graphics clip window is window[0..3] as in R1+28..40 of Wimp_RedrawWindow.
* Returns (possibly modified) flags.
*/
int
ro_zap_redraw_draw_string(x, y, string, length, flags, clip)
int x;
int y;
char *string;
int length;
int flags; /* DRAW_TRANSP, DRAW_BOLD, DRAW_UNDERL, DRAW_ITALIC */
int *clip;
{
char redraw_data[1024];
int clip_minx;
int clip_miny;
int clip_maxx;
int clip_maxy;
int os_xshift = zap_redraw_block.r_magx;
int os_yshift = zap_redraw_block.r_magy;
if (flags & DRAW_TRANSP)
return flags; /* We don't do transparent plotting yet. */
if (flags & DRAW_BOLD)
{
if (flags & DRAW_ITALIC && zap_caddr[ZAP_BITALIC])
zap_redraw_block.r_caddr = zap_caddr[ZAP_BITALIC];
else
zap_redraw_block.r_caddr = zap_caddr[ZAP_BOLD];
}
else
{
if (flags & DRAW_ITALIC)
zap_redraw_block.r_caddr = zap_caddr[ZAP_ITALIC];
else
zap_redraw_block.r_caddr = zap_caddr[ZAP_NORMAL];
}
if (!zap_redraw_block.r_caddr)
{
zap_redraw_block.r_caddr = zap_caddr[ZAP_NORMAL];
flags |= DRAW_UNDERL; /* Style missing - we can always underline */
}
/* Set the vertical scaling flag */
if (double_height)
zap_redraw_block.r_flags = 1 << 1;
else
zap_redraw_block.r_flags = 0;
/* Update the colour masks (if needed) */
if (zap_redraw_update_colours)
{
swi(ZapRedraw_CreatePalette, 2,
&zap_redraw_block,
zap_redraw_colours,
zap_redraw_block.r_palette, 2);
zap_redraw_update_colours = FALSE;
}
/* Target rectangle in ZapRedraw rectangle coordinates (pixels, Y-min/max reversed !!!) */
zap_redraw_block.r_minx = x >> os_xshift; /* inclusive */
zap_redraw_block.r_miny = zap_redraw_block.r_ysize - (y >> os_yshift); /* inclusive */
zap_redraw_block.r_maxx = (x + length * gui.char_width) >> os_xshift; /* exclusive */
zap_redraw_block.r_maxy = zap_redraw_block.r_ysize - ((y - gui.char_height) >> os_yshift);
/* exclusive */
/* Clip rectangle in ZapRedraw rectangle coordinates (pixels, Y-min/max reversed !!!) */
clip_minx = clip[0] >> os_xshift; /* inclusive */
clip_miny = zap_redraw_block.r_ysize - (clip[3] >> os_yshift); /* inclusive */
clip_maxx = clip[2] >> os_xshift; /* exclusive */
clip_maxy = zap_redraw_block.r_ysize - (clip[1] >> os_yshift); /* exclusive */
/* Clip target rectangle against the current graphics window */
if (zap_redraw_block.r_minx < clip_minx)
{
zap_redraw_block.r_scrollx = clip_minx - zap_redraw_block.r_minx;
zap_redraw_block.r_minx = clip_minx;
}
else
zap_redraw_block.r_scrollx = 0;
if (zap_redraw_block.r_miny < clip_miny)
{
zap_redraw_block.r_scrolly = clip_miny - zap_redraw_block.r_miny;
zap_redraw_block.r_miny = clip_miny;
}
else
zap_redraw_block.r_scrolly = 0;
if (zap_redraw_block.r_maxx > clip_maxx)
zap_redraw_block.r_maxx = clip_maxx;
if (zap_redraw_block.r_maxy > clip_maxy)
zap_redraw_block.r_maxy = clip_maxy;
/* Fill in the character data structure */
if (length > (sizeof(redraw_data) - 2 * 4 - 2))
length = sizeof(redraw_data) - 2 * 4 - 2;
((int*) redraw_data)[0] = 2 * 4;
((int*) redraw_data)[1] = 0;
strncpy(redraw_data + 2 * 4, string, length);
redraw_data[2 * 4 + length + 0] = '\0';
redraw_data[2 * 4 + length + 1] = '\x2';
zap_redraw_block.r_data = (int) redraw_data;
/* Perform the draw */
swi(ZapRedraw_RedrawArea, 0, &zap_redraw_block);
return flags;
}
/*
* Okay that was it from me, back to Thomas ...
*/
/*
* Parse the GUI related command-line arguments. Any arguments used are
* deleted from argv, and *argc is decremented accordingly. This is called
* when vim is started, whether or not the GUI has been started.
*/
void
gui_mch_prepare(int *argc, char **argv)
{
int arg = 1;
while (arg < *argc - 1)
{
if (strcmp(argv[arg], "--rows") == 0 || strcmp(argv[arg], "--columns") == 0)
{
int value;
value = atoi(argv[arg + 1]);
if (argv[arg][2] == 'r')
default_rows = value;
else
default_columns = value;
/* Delete argument from argv[]. (hope this is read/write!) */
*argc -= 2;
if (*argc > arg)
mch_memmove(&argv[arg], &argv[arg + 2], (*argc - arg)
* sizeof(char *));
}
else
arg++;
}
}
/* Fatal error on initialisation - report it and die. */
void
ro_die(error)
char_u *error; /* RISC OS error block */
{
swi(Wimp_ReportError, error, 5, "GVim");
exit(EXIT_FAILURE);
}
/* Find the sizes of the window tools:
*
* Create a test window.
* Find inner and outer sizes.
* Find the difference.
* Delete window.
*
* While we're here, find the eigen values too.
*/
void
ro_measure_tools()
{
int block[10];
int vdu[] = { 4, 5, -1};
int test_window[] =
{
-100, -100, /* Visible area : min X,Y */
-50, -50, /* max X,Y */
0, 0, /* Scroll offsets */
-1, /* Window in front */
0xd0800150, /* Window flags */
0xff070207, /* Colours */
0x000c0103, /* More colours */
0, -0x4000, /* Workarea extent */
0x4000, 0, /* max X,Y */
0x00000000, /* No title */
0 << 12, /* No workarea button type */
1, /* Wimp sprite area */
0x00010001, /* Minimum width, height */
0, 0, 0, /* Title data (none) */
0 /* No icons */
};
int inner_max_x, inner_min_y;
swi(Wimp_CreateWindow, 0, test_window);
block[0] = r0;
/* Open the window (and read state).
* GetWindowOutline needs it too if the wimp isn't nested.
*/
swi(Wimp_OpenWindow, 0, block);
inner_max_x = block[3];
inner_min_y = block[2];
swi(Wimp_GetWindowOutline, 0, block);
gui.scrollbar_width = block[3] - inner_max_x;
gui.scrollbar_height = inner_min_y - block[2];
swi(Wimp_DeleteWindow, 0, block);
/* Read the size of one pixel. */
swi(OS_ReadVduVariables, vdu, vdu);
x_eigen_factor = vdu[0];
y_eigen_factor = vdu[1];
}
/* Load a template from the current templates file.
* Create the window and return its handle.
*/
int
ro_load_template(str_name, title, title_size)
char_u *str_name; /* Identifier of window in file (max 12 chars) */
char_u **title; /* If not NULL then return pointer to title here */
int *title_size; /* If not NULL then return the title length here */
{
int *window;
char *data;
int name[4];
strcpy( (char *) name, str_name);
/* Find how big we must make the buffers */
if (xswi(Wimp_LoadTemplate, 0, 0, 0, 0, -1, name, 0) & v_flag)
ro_die( (char *) r0);
window = malloc(r1); /* Don't print text messages from alloc() */
data = malloc(r2);
if (window == NULL || data == NULL)
ro_die("\0\0\0\0Out of memory - Can't load templates");
/* Load the template into the buffers */
swi(Wimp_LoadTemplate, 0,
window, /* Temp block */
data, /* Icon data */
data + r2 + 1, /* End of icon data */
-1, /* No fonts */
name, 0); /* First match */
if (r6 == 0)
ro_die("\0\0\0\0Can't find window in Templates file");
/* Create the window */
if (xswi(Wimp_CreateWindow, 0, window) & v_flag)
ro_die( (char *) r0);
if (title)
*title = (char_u *) window[18];
if (title_size)
*title_size = window[20];
free(window); /* Free temp block */
return r0; /* Return the window handle */
}
/*
* Check if the GUI can be started. Called before gvimrc is sourced.
* Return OK or FAIL.
*/
int
gui_mch_init_check()
{
return OK; /* TODO: GUI can always be started? */
}
/*
* Initialise the RISC OS GUI.
* Create all the windows.
* Returns OK for success, FAIL when the GUI can't be started.
*/
int
gui_mch_init()
{
int messages[] = {
1, 2, 3, 4, /* DataSave, DataSaveAck, DataLoad, DataLoadAck */
8, /* PreQuit */
0xf, /* ClaimEntity (for clipboard) */
0x10, /* DataRequest (for clipboard) */
0x400c1, /* Mode change */
0x400c3, /* TaskCloseDown */
0x400c9, /* MenusDeleted */
0x808c1, /* TW_Output */
0x808c2, /* TW_Ego */
0x808c3, /* TW_Morio */
0x808c4, /* TW_Morite */
0}; /* End-of-list. */
/* There may have been some errors reported in the
* command window before we get here. Wait if so.
*/
swi(Wimp_ReadSysInfo, 3);
if (r0 == 0)
swi(Wimp_CommandWindow, 0); /* Window opened - close with prompt */
if (xswi(Wimp_Initialise, 310, 0x4b534154, "GVim", messages) & v_flag)
return FAIL;
nested_wimp = r0 >= 397;
task_handle = r1;
/* Load the templates. */
if (xswi(Wimp_OpenTemplate, 0, "Vim:Templates") & v_flag)
ro_die( (char *) r0);
gui.window_handle = ro_load_template("editor",
&gui.window_title,
&gui.window_title_size);
save_window = ro_load_template("save", NULL, NULL);
swi(Wimp_CloseTemplate);
/* Set default foreground and background colours. */
gui.norm_pixel = gui.def_norm_pixel;
gui.back_pixel = gui.def_back_pixel;
/* Get the colours from the "Normal" and "Menu" group (set in syntax.c or
* in a vimrc file) */
set_normal_colors();
/*
* Check that none of the colors are the same as the background color
*/
gui_check_colors();
/* Get the colours for the highlight groups (gui_check_colors() might have
* changed them) */
highlight_gui_started(); /* re-init colours and fonts */
/* Set geometry based on values read on initialisation. */
gui.num_cols = Columns = default_columns;
gui.num_rows = Rows = default_rows;
/* Get some information about our environment. */
ro_measure_tools();
return OK;
}
/*
* Called when the foreground or background colour has been changed.
*/
void
gui_mch_new_colors()
{
}
/*
* Open the GUI window which was created by a call to gui_mch_init().
*/
int
gui_mch_open(void)
{
int block[10];
block[0] = gui.window_handle;
swi(Wimp_GetWindowState, 0, block);
block[7] = -1; /* Open at the top of the stack */
swi(Wimp_OpenWindow, 0, block);
/* Give the new window the input focus */
swi(Wimp_SetCaretPosition, gui.window_handle, -1, 0, 0, -1, -1);
if (gui_win_x != -1 && gui_win_y != -1)
gui_mch_set_winpos(gui_win_x, gui_win_y);
return OK;
}
void
gui_mch_exit(int rc)
{
int block[64];
/* Close window. Stops us from getting troublesome events
* if we take a while to die.
*/
block[0] = gui.window_handle;
swi(Wimp_CloseWindow, 0, block);
if (child_handle)
{
/* We still have a sub-task running - kill it */
block[0] = 20;
block[3] = 0;
block[4] = 0; /* Quit */
if ((xswi(Wimp_SendMessage, 17, block, child_handle) & v_flag) == 0)
{
/* Idle until child dies. */
while (child_handle)
{
process_event(wimp_poll(1, block), block);
}
}
}
exit(rc);
}
/*
* Get the position of the top left corner of the window.
*/
int
gui_mch_get_winpos(int *x, int *y)
{
/* TODO */
return FAIL;
}
/*
* Set the position of the top left corner of the window to the given
* coordinates.
*/
void
gui_mch_set_winpos(int x, int y)
{
/* TODO */
}
void
gui_mch_set_shellsize(width, height, min_width, min_height, base_width, base_height, direction)
int width; /* In OS units */
int height;
int min_width; /* Smallest permissible window size (ignored) */
int min_height;
int base_width; /* Space for scroll bars, etc */
int base_height;
int direction;
{
int s_width, s_height;
int block[] = {
gui.window_handle,
0,
-height + 1,
width,
1};
gui_mch_get_screen_dimensions(&s_width, &s_height);
s_width -= base_width;
s_height -= base_height; /* Underestimate - ignores titlebar */
swi(Wimp_GetWindowState, 0, block);
block[3] = block[1] + width;
block[2] = block[4] - height;
if (block[3] > s_width)
{
block[3] = s_width;
block[1] = block[3] - width;
}
if (block[2] < gui.scrollbar_height)
{
block[2] = gui.scrollbar_height;
block[4] = block[2] + height;
}
swi(Wimp_OpenWindow, 0, block);
swi(Wimp_ForceRedraw, gui.window_handle, 0, -height, width, 0);
}
void
gui_mch_get_screen_dimensions(int *screen_w, int *screen_h)
{
int block[] = {4, 5, 11, 12, -1};
swi(OS_ReadVduVariables, block, block);
*screen_w = (block[2] + 1) << block[0];
*screen_h = (block[3] + 1) << block[1];
}
/* Take a font name with options and return a font handle, or
* zero for failure.
* Replace extension with 'Bold' or 'Italic' depending on modifiers.
*/
int
ro_get_font(fullname, weight)
char_u *fullname;
int weight; /* Initial weights:
* BIT MEANING
* 0 bold
* 1 italic
*/
{
char_u *arg;
char_u font[41];
int width = -1;
int height = -1;
int name_len;
int i;
char_u c;
for (i = 0; i < 39;)
{
c = fullname[i];
if (c == ':' || c == NUL || c == '.')
break;
font[i++] = c;
}
/* find the first modifier, NULL if none */
arg = strchr(fullname + i, ':');
while (arg)
{
switch (*++arg)
{
case 'h':
height = strtol(arg + 1, (char **) &arg, 10);
break;
case 'w':
width = strtol(arg + 1, (char **) &arg, 10);
break;
case 'b':
weight |= 1;
break;
case 'i':
weight |= 2;
break;
default:
return 0;
}
arg = strchr(arg, ':');
}
if ((weight & 1) && i < 35)
{
/* Bold goes instead of given suffix */
strncpy(font + i, ".Bold", 5);
i += 5;
}
else
{
/* Copy rest of name unless we are using Bold */
while (i < 39)
{
c = fullname[i];
if (c == ':' || c == NUL)
break;
font[i++] = c;
}
}
if ((weight & 2) && i < 32)
{
strncpy(font + i, ".Oblique", 8);
i += 8;
}
font[i] = 0;
if (height < 1 && width < 1)
height = width = 10; /* Default to 10pt */
else if (height < 1)
height = width;
else if (width < 1)
width = height;
if (xswi(Font_FindFont, 0, font, width << 4, height << 4, 0, 0) & v_flag)
return NOFONT; /* Can't find font */
return r0;
}
/* Load a file into allocated memory and check it is valid.
* Return a pointer to the allocated block on success.
*/
char *
zap_load_file(name, style)
char_u *name; /* Name of directory containing styles */
char_u *style; /* Name of style within directory */
{
char_u fname[256];
char_u *file;
if (strlen(name) + strlen(style) > 254)
return NULL; /* Names too long */
sprintf(fname, "%s.%s", name, style);
/* Load the named font in 1bpp format. */
if (xswi(OS_File, 13, fname, 0, 0, "VimFonts:") & v_flag || r0 != 1)
return NULL; /* Error reading file info, or not a file */
/* Allocate enough memory to load the whole file */
file = (char *) alloc(r4);
if (!file)
return NULL; /* Out of memory */
if (xswi(OS_File, 12, fname, file, 0, "VimFonts:") & v_flag)
return NULL; /* Unable to load file */
if (strncmp(file, "ZapFont\015", 8) == 0)
return file; /* Loaded OK! */
vim_free(file);
return NULL; /* Not a valid font file */
}
/* Load and convert the named font.
* If name is NULL or a null string then convert the system font.
* Return OK on success; FAIL and we revert to using the VDU drivers.
*
* 'name' is the name of a directory.
* Tries to load 'name.0', 'name.B', 'name.I' and 'name.IB'.
*/
int
zap_load_font(name)
char_u *name;
{
int i;
/* Free the existing font files, if any */
for (i = 0; i < ZAP_STYLES; i++)
{
vim_free(zap_file[i]);
zap_file[i] = NULL;
}
if (name && *name == '!')
{
name++;
double_height = TRUE;
}
else
double_height = FALSE;
if (name && *name)
{
zap_file[ZAP_NORMAL] = zap_load_file(name, "0");
if (!zap_file[ZAP_NORMAL])
return FAIL; /* Can't load the 'normal' style - error */
zap_file[ZAP_BOLD] = zap_load_file(name, "B");
zap_file[ZAP_ITALIC] = zap_load_file(name, "I");
zap_file[ZAP_BITALIC] = zap_load_file(name, "IB");
}
else
{
int *header;
char workarea[16];
char *old_wa;
/* Allocate memory for system font (8 x 8 x 256 bits, plus header) */
header = (int *) alloc(0x20 + 8 * 256);
if (header == NULL)
return FAIL;
zap_file[ZAP_NORMAL] = (char *) header;
/* Store details about the system font */
header[2] = 8; /* Width */
header[3] = 8; /* Height */
header[4] = 0; /* First char */
header[5] = 255; /* Last char */
header[6] = header[7] = 0; /* Reserved */
/* Get system font bitmap */
old_wa = zap_redraw_block.r_workarea;
zap_redraw_block.r_workarea = workarea;
swi(ZapRedraw_ReadSystemChars, zap_file[ZAP_NORMAL] + 0x20, &zap_redraw_block);
zap_redraw_block.r_workarea = old_wa;
}
return ro_zap_redraw_initialise();
}
/*
* Initialise vim to use the font with the given name.
* Return FAIL if the font could not be loaded, OK otherwise.
*/
int
gui_mch_init_font(char_u *font_name, int fontset)
{
int new_handle = 0; /* Use the system font by default */
if (font_name[0] == '!')
{
/* Select a ZapRedraw font */
if (zap_load_font(font_name + 1))
zap_redraw = TRUE;
else
{
EMSG2(_("E610: Can't load Zap font '%s'"), font_name);
font_name = "System"; /* Error - use system font */
zap_redraw = FALSE;
}
}
else
{
zap_redraw = FALSE;
if (font_name)
{
/* Extract any extra details about the font */
new_handle = ro_get_font(font_name, 0);
if (!new_handle)
return FAIL;
}
else
font_name = "System";
}
/* Free the previous font, if any */
gui_mch_free_font(gui.norm_font);
gui.norm_font = new_handle;
gui.char_ascent = 0;
if (new_handle)
{
/* Read details about the chosen font */
swi(Font_ReadInfo, new_handle);
gui.char_width = r3 - r1;
gui.char_height = r4 - r2;
font_x_offset = -r1; /* Where to position each char in its box */
font_y_offset = -r4;
/* Try to load other fonts for bold, italic, and bold-italic */
gui_mch_free_font(gui.bold_font);
gui.bold_font = ro_get_font(font_name, 1);
gui_mch_free_font(gui.ital_font);
gui.ital_font = ro_get_font(font_name, 2);
gui_mch_free_font(gui.boldital_font);
gui.boldital_font = ro_get_font(font_name, 3);
}
else
{
/* Use the system font or ZapRedraw. */
if (zap_redraw)