-
-
Notifications
You must be signed in to change notification settings - Fork 24
/
Copy pathCOMMWINDOW
898 lines (766 loc) · 49.4 KB
/
COMMWINDOW
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
(DEFINE-FILE-INFO §PACKAGE "INTERLISP" §READTABLE "INTERLISP" §BASE 10)
(FILECREATED " 2-Apr-87 17:06:05" {ERIS}<LISPUSERS>LYRIC>COMMWINDOW.;3 49786
changes to%: (VARS REMOTE-CURSOR COMMWINDOWCOMS)
(COURIERPROGRAMS COMMWINDOW)
(FNS CLOSE-FRAME START-GET-BITS SEND-BITS FRAME-EVENT MAKE-FRAME)
(FUNCTIONS \PILOTBITBLT)
previous date%: " 2-Apr-87 16:54:24" {ERIS}<LISPUSERS>LYRIC>COMMWINDOW.;2)
(* "
Copyright (c) 1986, 1900, 1987 by Xerox Corporation. All rights reserved.
")
(PRETTYCOMPRINT COMMWINDOWCOMS)
(RPAQQ COMMWINDOWCOMS (
(* ;;; "Viewer end")
(FNS CLOSE-FRAME GET-BITS START-GET-BITS)
(FILES COURIERSERVE)
(* ;;; "Sender end")
(FNS SEND-BITS SEND-TILE LISTEN-TO-VIEWER MAPTILES SHUT-DOWN-VIEWER
CHANGE-SENDER-UPDATE-MODE)
(FUNCTIONS INCR \PILOTBITBLT)
(* ;; "Controling update schemes")
(INITVARS (COMM.DEFAULT.TRANSMIT.TYPE 'SQUARE)
(COMM.SEND.UNCHANGED.TILES T)
(COMM.UPDATE.MOUSE.POSITION 'Sender))
(GLOBALVARS COMM.DEFAULT.TRANSMIT.TYPE COMM.UPDATE.MOUSE.POSITION
COMM.SEND.UNCHANGED.TILES)
(* ;;; "Pruning out unchanged screen tiles")
(FNS PACKET-EQUAL GET-CACHED-PACKET PUT-CACHED-PACKET)
(* ;;; "Low level packet exchange code")
(CONSTANTS COMM.BAND.PACKET.TYPE COMM.CURSOR.PACKET.TYPE
COMM.CURSOR.CLOSE.PACKET.TYPE COMM.SHUT.DOWN.PACKET.TYPE)
(VARIABLES MAX-PACKET-BITS)
(RECORDS COMM.XFER.PACKET)
(* ;;; "Packing and unpacking bitmaps into etherpackets")
(FNS BMTOPACKET PACKETTOBM)
(* ;;; "Displaying the viewing machine's cursor")
(VARS REMOTE-CURSOR)
(INITVARS (CURSORICON NIL))
(* ;;; "Manipulating the frame that outlines the region being viewed")
(INITVARS (*FRAME-SHADE* GRAYSHADE))
(FNS FRAME-EVENT MAKE-FRAME MOVE-FRAME SHAPE-FRAME SET-FRAME-TITLE)
(* ;;; "Changing the system parameters")
(FNS MAKE-MENUS-WINDOW MODE-MENU)
(VARS COMM-MODES)
(* ;;; "Initialization")
(P (COURIER.START.SERVER))
(* ;;; "Unused stuff, as far as I can tell")
(FNS FASTBITBLT)
(* ;;; "System file dependencies")
(DECLARE%: DONTCOPY DOEVAL@COMPILE (FILES (LOADCOMP)
LLDISPLAY LLETHER LLNS))
(COURIERPROGRAMS COMMWINDOW)))
(* ;;; "Viewer end")
(DEFINEQ
(CLOSE-FRAME
[LAMBDA (FRAME) (* ; "Edited 2-Apr-87 16:50 by Masinter")
(MAPC FRAME 'CLOSEW])
(GET-BITS
(LAMBDA (RECEIVE-SOCKET WINDOW) (* ; "Edited 24-Nov-86 13:16 by smL")
(RESETLST (RESETSAVE NIL (LIST 'CLOSENSOCKET RECEIVE-SOCKET))
(LET ((BBT (create PILOTBBT))
(STREAM (GETSTREAM WINDOW 'OUTPUT))
(SCRATCHX 0)
(SCRATCHY 0)
SPREAD SCRATCH SEENX SEENY CURSORUP CURLFT CURBTM CURX CURY X Y DATA WORDLEFT
WINDOWBOTTOMLINE (CURSORCOVEREDIMAGE (BITMAPCREATE 16 16))
(TRACKING-CURSOR? NIL)) (* ;
"CURLFT and CURBTM are the left and bottom of the cursor bitmap positions, adjusted for hot spot.")
(bind CP PACKET THISWIDTH THISHEIGHT while T
do (COND
((SETQ PACKET (GETXIP RECEIVE-SOCKET 3000))
(SELECTC (fetch (COMM.XFER.PACKET PACKET-TYPE) of PACKET)
(COMM.CURSOR.PACKET.TYPE (* ; "ignore data, just move cursor ")
)
(COMM.BAND.PACKET.TYPE
(SETQ SPREAD (fetch (COMM.XFER.PACKET SPREAD) of PACKET))
(SETQ X (fetch (COMM.XFER.PACKET DATAX) of PACKET))
(SETQ Y (fetch (COMM.XFER.PACKET DATAY) of PACKET))
(SETQ THISWIDTH (fetch (COMM.XFER.PACKET THISWIDTH) of PACKET))
(SETQ THISHEIGHT (fetch (COMM.XFER.PACKET THISHEIGHT) of PACKET))
(COND
((AND CURSORUP (<= (- X 16)
CURLFT
(+ X THISWIDTH 16))
(<= (- Y 16)
CURBTM
(+ Y THISHEIGHT 16)))
(BITBLT CURSORCOVEREDIMAGE 0 0 STREAM CURLFT CURBTM)
(SETQ CURSORUP NIL)))
(COND
((OR (> THISWIDTH SCRATCHX)
(> THISHEIGHT SCRATCHY))
(* ;;
"make sure scratch bitmap is big enough")
(SETQ SCRATCH (BITMAPCREATE (SETQ SCRATCHX (MAX SCRATCHX
THISWIDTH))
(SETQ SCRATCHY (MAX SCRATCHY THISHEIGHT))
))))
(PACKETTOBM BBT (fetch (COMM.XFER.PACKET BITS) of PACKET)
THISWIDTH THISHEIGHT SCRATCH 0 0 SPREAD)
(BITBLT SCRATCH 0 0 WINDOW X Y THISWIDTH THISHEIGHT))
(COMM.SHUT.DOWN.PACKET.TYPE (* ;; "Shut down the listener")
(CLOSEW WINDOW)
(RETURN))
(PRINTOUT PROMPTWINDOW "Odd packet" (fetch (COMM.XFER.PACKET
PACKET-TYPE)
of PACKET)))
(SETQ SEENX (fetch (COMM.XFER.PACKET CURSORX) of PACKET))
(SETQ SEENY (fetch (COMM.XFER.PACKET CURSORY) of PACKET))
(RELEASE.XIP PACKET)
(COND
((AND (KEYDOWNP 'LSHIFT)
(<= 0 (SETQ X (LASTMOUSEX WINDOW))
(WINDOWPROP WINDOW 'WIDTH))
(<= 0 (SETQ Y (LASTMOUSEY WINDOW))
(WINDOWPROP WINDOW 'HEIGHT)))
(* ;;
"Tell the sender to track our cursor.")
(SETQ CP (\FILLINXIP \XIPT.EXCHANGE RECEIVE-SOCKET
(fetch XIPSOURCEHOST of PACKET)
(fetch XIPSOURCESOCKET of PACKET)
(fetch XIPSOURCENET of PACKET)
NIL)) (* ;
"send more than we need just to see if it fixes the problem")
(XIPAPPEND.WORD CP 0)
(XIPAPPEND.WORD CP COMM.CURSOR.PACKET.TYPE)
(* ; "turn into a cursor ack")
(XIPAPPEND.WORD CP X)
(XIPAPPEND.WORD CP Y)
(CL:ASSERT (AND (= (fetch (COMM.XFER.PACKET PACKET-TYPE) of CP)
COMM.CURSOR.PACKET.TYPE)
(= (fetch (COMM.XFER.PACKET CURSORX)
CP)
X)
(= (fetch (COMM.XFER.PACKET CURSORY)
CP)
Y)))
(replace (ETHERPACKET EPREQUEUE) of CP with 'FREE)
(SENDXIP RECEIVE-SOCKET CP)
(SETQ TRACKING-CURSOR? T)
(BLOCK))
(TRACKING-CURSOR? (* ;;
"Last pass we were tracking the cursor, but we aren't now. Tell the sender to stop.")
(SETQ CP (\FILLINXIP \XIPT.EXCHANGE RECEIVE-SOCKET
(fetch XIPSOURCEHOST of PACKET)
(fetch XIPSOURCESOCKET of PACKET)
(fetch XIPSOURCENET of PACKET)
NIL))
(XIPAPPEND.WORD CP 0)
(XIPAPPEND.WORD CP COMM.CURSOR.CLOSE.PACKET.TYPE)
(replace (ETHERPACKET EPREQUEUE) of CP with 'FREE)
(SENDXIP RECEIVE-SOCKET CP)
(SETQ TRACKING-CURSOR? NIL)))
(SETQ X (DIFFERENCE SEENX (fetch CUHOTSPOTX DEFAULTCURSOR)))
(SETQ Y (DIFFERENCE SEENY (fetch CUHOTSPOTY DEFAULTCURSOR)))
(COND
((AND CURSORUP (OR (NEQ X CURLFT)
(NEQ Y CURBTM)))
(BITBLT CURSORCOVEREDIMAGE 0 0 STREAM CURLFT CURBTM)
(SETQ CURSORUP NIL)))
(COND
((AND (NULL CURSORUP)
(<= 0 SEENX (WINDOWPROP WINDOW 'WIDTH))
(<= 0 SEENY (WINDOWPROP WINDOW 'HEIGHT)))
(* ; "put cursor up")
(SETQ CURLFT X)
(SETQ CURBTM Y)
(BITBLT STREAM CURLFT CURBTM CURSORCOVEREDIMAGE 0 0 16 16)
(BITBLT (fetch CUIMAGE DEFAULTCURSOR)
0 0 STREAM CURLFT CURBTM NIL NIL 'INPUT 'PAINT)
(SETQ CURSORUP T))))))))))
(START-GET-BITS
[LAMBDA (DUMMY-STREAM DUMMY-PROGRAM DUMMY-PROGRAM REGION REMOTE-USER)
(* ; "Edited 2-Apr-87 16:32 by Masinter")
(LET ((NS (OPENNSOCKET))
(BORDERSIZE 8))
[ADD.PROCESS (LIST 'GET-BITS NS (LIST 'QUOTE (CREATEW (with REGION REGION
(CREATEREGION (DIFFERENCE LEFT
BORDERSIZE)
(DIFFERENCE BOTTOM
BORDERSIZE)
(WIDTHIFWINDOW WIDTH
BORDERSIZE)
(HEIGHTIFWINDOW HEIGHT T
BORDERSIZE)))
(CONCAT "Viewing region of " REMOTE-USER
"'s display")
BORDERSIZE]
(LIST 'RETURN (LIST (NSOCKETNUMBER NS)
(USERNAME])
)
(FILESLOAD COURIERSERVE)
(* ;;; "Sender end")
(DEFINEQ
(SEND-BITS
[LAMBDA (PARTNER FRAME) (* ; "Edited 2-Apr-87 16:51 by Masinter")
(* ;
"process that monitors the bits that are in the FRAME region and send them to RECADDR.")
(OR CURSORICON (SETQ CURSORICON (ICONW REMOTE-CURSOR REMOTE-CURSOR '(0 . 0) T)))
(RESETLST [CL:UNLESS FRAME (SETQ FRAME (MAKE-FRAME (GETREGION)))
(RESETSAVE NIL `(CLOSE-FRAME ,FRAME]
(LET* ((SENDSOCKET (OPENNSOCKET))
[PARTNERADDRESS (COND
((TYPENAMEP PARTNER 'NSADDRESS)
PARTNER)
(T (LOOKUP.NS.SERVER PARTNER]
(PARTNERHOST (fetch NSHOSTNUMBER PARTNERADDRESS))
(PARTNERNET (fetch NSNET PARTNERADDRESS))
(PARTNERCALL (COURIER.OPEN PARTNERADDRESS))
(PACKET NIL)
(VIEWER-RETURNED-VALUE (COURIER.CALL PARTNERCALL 'COMMWINDOW 'START-GET-BITS
(WINDOWPROP (CAR FRAME)
'FRAME-REGION)
(USERNAME)))
(PARTNERSOCKET (CAR VIEWER-RETURNED-VALUE))
(PARTNERUSERNAME (CADR VIEWER-RETURNED-VALUE))
(BBT (create PILOTBBT)))
(RESETSAVE NIL (LIST 'CLOSENSOCKET SENDSOCKET))
(CLOSEF PARTNERCALL) (* ;
"close SPP connection, needs no more RPC")
(DISCARDXIPS SENDSOCKET)
(RESETSAVE NIL (LIST 'SHUT-DOWN-VIEWER SENDSOCKET PARTNERHOST PARTNERNET
PARTNERSOCKET))
(SET-FRAME-TITLE FRAME (CONCAT "Displaying region on " PARTNERUSERNAME "'s display")
)
(while T
do (DESTRUCTURING-BIND (L B W H)
(WINDOWPROP (CAR FRAME)
'FRAME-REGION)
(MAPC FRAME (FUNCTION TOTOPW))
(MAPTILES MAX-PACKET-BITS W H L B
(FUNCTION (LAMBDA (X Y THIS-WIDTH THIS-HEIGHT SPREAD)
(LISTEN-TO-VIEWER SENDSOCKET L B)
(SEND-TILE X Y L B THIS-WIDTH THIS-HEIGHT SPREAD
SENDSOCKET PARTNERHOST PARTNERNET
PARTNERSOCKET PACKET])
(SEND-TILE
(LAMBDA (X Y FRAME-LEFT FRAME-BOTTOM THIS-WIDTH THIS-HEIGHT SPREAD SENDSOCKET PARTNERHOST
PARTNERNET PARTNERSOCKET PACKET) (* ; "Edited 24-Nov-86 14:45 by smL")
(* ;;; "Send a tile to the receiver")
(SETQ PACKET (\FILLINXIP \XIPT.EXCHANGE SENDSOCKET PARTNERHOST PARTNERSOCKET PARTNERNET))
(replace EPREQUEUE of PACKET with 'FREE)
(XIPAPPEND.WORD PACKET (OR SPREAD (SETQ SPREAD 0)))
(XIPAPPEND.WORD PACKET COMM.BAND.PACKET.TYPE) (* ;;
"Reserve space for the cursor pos, to be filled in later on")
(XIPAPPEND.WORD PACKET 0)
(XIPAPPEND.WORD PACKET 0)
(XIPAPPEND.WORD PACKET X)
(XIPAPPEND.WORD PACKET Y)
(XIPAPPEND.WORD PACKET THIS-WIDTH)
(XIPAPPEND.WORD PACKET THIS-HEIGHT)
(BMTOPACKET NIL (SCREENBITMAP)
(+ FRAME-LEFT X)
(+ FRAME-BOTTOM Y)
THIS-WIDTH THIS-HEIGHT (fetch (COMM.XFER.PACKET BITS) of PACKET)
SPREAD)
(add (fetch XIPLENGTH PACKET)
(IQUOTIENT (+ 7 (TIMES THIS-WIDTH THIS-HEIGHT))
8))
(CL:ASSERT (with COMM.XFER.PACKET PACKET (AND (EQ DATAX X)
(EQ DATAY Y)
(EQ THISWIDTH THIS-WIDTH)
(EQ THISHEIGHT THIS-HEIGHT))))
(if (OR COMM.SEND.UNCHANGED.TILES (NOT (PACKET-EQUAL PACKET (GET-CACHED-PACKET X Y PARTNERHOST
PARTNERNET PARTNERSOCKET))))
then (PUT-CACHED-PACKET PACKET X Y PARTNERHOST PARTNERNET PARTNERSOCKET)
else (* ;;
"There has been no change in the bits, so don't bother to send them")
(replace (XIP XIPLENGTH) of PACKET with (CONSTANT (PLUS \XIPOVLEN
(TIMES 2
(INDEXF (FETCH (
COMM.XFER.PACKET
DATALOC)
OF T)))))))
(* ;;
"Set in the cursor pos and send the packet")
(replace (COMM.XFER.PACKET CURSORX) of PACKET with (LOGAND (- LASTMOUSEX FRAME-LEFT)
65535))
(replace (COMM.XFER.PACKET CURSORY) of PACKET with (LOGAND (- LASTMOUSEY FRAME-BOTTOM)
65535))
(SENDXIP SENDSOCKET PACKET)
(BLOCK)))
(LISTEN-TO-VIEWER
(LAMBDA (SENDSOCKET FRAME-LEFT FRAME-BOTTOM) (* ; "Edited 24-Nov-86 13:13 by smL")
(* ;;
"Update the display of the viewers cursor")
(bind CURSORPACKET while (SETQ CURSORPACKET (GETXIP SENDSOCKET 0))
do (* ; "got an ack")
(SELECTC (fetch (COMM.XFER.PACKET PACKET-TYPE)
CURSORPACKET)
(COMM.CURSOR.PACKET.TYPE
(MOVEW CURSORICON (+ (fetch (COMM.XFER.PACKET CURSORX)
CURSORPACKET)
FRAME-LEFT)
(+ (fetch (COMM.XFER.PACKET CURSORY)
CURSORPACKET)
FRAME-BOTTOM))
(OPENW CURSORICON))
(COMM.CURSOR.CLOSE.PACKET.TYPE (* ;;
"Stop shadowing the viewers cursor")
(if (OPENWP CURSORICON)
then (CLOSEW CURSORICON)))
NIL))))
(MAPTILES
(LAMBDA (MAXBITS W H L B FN) (* ; "Edited 24-Nov-86 17:42 by smL")
(LET* ((SQRT-BITS (CL:ISQRT MAXBITS))
(PACKETHEIGHT NIL)
(PACKETWIDTH NIL)
(XMARGIN (IQUOTIENT SQRT-BITS 2))
(YMARGIN (IQUOTIENT SQRT-BITS 2))
(XD 1)
(YD 1)
(SPREAD NIL)
(MX LASTMOUSEX)
(MY LASTMOUSEY)
(VIEWER-X -100)
(VIEWER-Y -100))
(CL:ECASE COMM.DEFAULT.TRANSMIT.TYPE (SQUARE (SETQ PACKETHEIGHT SQRT-BITS))
(RECTANGLE (SETQ PACKETWIDTH (CL:* 2 SQRT-BITS)))
(HORIZONTAL (SETQ PACKETWIDTH (MIN W MAXBITS)))
(VERTICAL (SETQ PACKETHEIGHT (MIN H MAXBITS)))
(H3 (SETQ PACKETWIDTH (MIN W MAXBITS))
(SETQ YD 8)))
(OR PACKETWIDTH (SETQ PACKETWIDTH (IQUOTIENT MAXBITS PACKETHEIGHT)))
(OR PACKETHEIGHT (SETQ PACKETHEIGHT (IQUOTIENT MAXBITS PACKETWIDTH)))
(INCR Y (- H PACKETHEIGHT)
(- PACKETHEIGHT)
YD
(< Y (- PACKETHEIGHT))
(INCR X 0 PACKETWIDTH XD (>= X W)
(SELECTQ COMM.UPDATE.MOUSE.POSITION
(NIL (* ;; "Don't do anything special")
NIL)
(Sender (* ;;
"Update around the sender's cursor (this machine is the sender) if the mouse has moved")
(if (OR (NEQ LASTMOUSEX MX)
(NEQ LASTMOUSEY MY))
then (SETQ MX LASTMOUSEX)
(SETQ MY LASTMOUSEY)
(LET ((X (- MX XMARGIN L))
(Y (- MY YMARGIN B)))
(* ;;
"X and Y are now in block coordinates ")
(CL:IF (AND (<= 0 X (- W 1))
(<= 0 Y (- H 1)))
(CL:FUNCALL FN X Y (MIN (+ XMARGIN XMARGIN)
(- W X))
(MIN (+ YMARGIN YMARGIN)
(- H Y)))))))
(Viewer (* ;; "Update around the viewer's cursor (the other machine is the viewer) if the cursor is in the frame (and hence open frame)")
(LET ((VIEWERS-REGION (WINDOWPROP CURSORICON 'REGION)))
(if (AND (OPENWP CURSORICON)
(OR (NEQ (fetch LEFT of VIEWERS-REGION)
VIEWER-X)
(NEQ (fetch BOTTOM of VIEWERS-REGION)
VIEWER-Y)))
then (SETQ VIEWER-X (fetch LEFT of VIEWERS-REGION))
(SETQ VIEWER-Y (fetch BOTTOM of VIEWERS-REGION))
(LET ((X (- VIEWER-X XMARGIN L))
(Y (- VIEWER-Y YMARGIN B)))
(* ;;
"X and Y are now in block coordinates ")
(CL:IF (AND (<= 0 X (- W 1))
(<= 0 Y (- H 1)))
(CL:FUNCALL FN X Y
(MIN (+ XMARGIN XMARGIN)
(- W X))
(MIN (+ YMARGIN YMARGIN)
(- H Y))))))))
NIL)
(CL:FUNCALL FN (MAX X 0)
(MAX Y 0)
(MIN PACKETWIDTH (- W X))
(MIN PACKETHEIGHT (- H Y))))))))
(SHUT-DOWN-VIEWER
(LAMBDA (SENDSOCKET PARTNERHOST PARTNERNET PARTNERSOCKET) (* ; "Edited 24-Nov-86 11:40 by smL")
(* ;;;
"Send a shut-down packet to the receiver")
(* ;;
"Beware, this may fail on a noisey line, so we do it twice, just to be safer.")
(to 2 do (LET ((PACKET (\FILLINXIP \XIPT.EXCHANGE SENDSOCKET PARTNERHOST PARTNERSOCKET PARTNERNET
)))
(replace EPREQUEUE of PACKET with 'FREE)
(XIPAPPEND.WORD PACKET 0)
(XIPAPPEND.WORD PACKET COMM.SHUT.DOWN.PACKET.TYPE)
(SENDXIP SENDSOCKET PACKET)))))
(CHANGE-SENDER-UPDATE-MODE
(LAMBDA (NEW-MODE) (* ; "Edited 24-Nov-86 12:49 by smL")
(SETQ COMM.DEFAULT.TRANSMIT.TYPE NEW-MODE)))
)
(DEFMACRO INCR (VAR START HEIGHT REPEATS UNTIL &REST FORMS)
`(CL:DO ((REPEAT-COUNT 0 (+ REPEAT-COUNT 1)))
((>= REPEAT-COUNT ,REPEATS))
(CL:DO [(,VAR (+ ,START (CL:* REPEAT-COUNT ,HEIGHT))
(+ ,VAR (CL:* ,REPEATS ,HEIGHT]
(,UNTIL)
,@FORMS)))
(DEFMACRO \PILOTBITBLT (XCL-USER::TABLE &OPTIONAL (XCL-USER::N 0)) (CL:ASSERT (EQL XCL-USER::N 0))
`((OPCODES PILOTBITBLT)
,XCL-USER::TABLE 0))
(* ;; "Controling update schemes")
(RPAQ? COMM.DEFAULT.TRANSMIT.TYPE 'SQUARE)
(RPAQ? COMM.SEND.UNCHANGED.TILES T)
(RPAQ? COMM.UPDATE.MOUSE.POSITION 'Sender)
(DECLARE%: DOEVAL@COMPILE DONTCOPY
(GLOBALVARS COMM.DEFAULT.TRANSMIT.TYPE COMM.UPDATE.MOUSE.POSITION COMM.SEND.UNCHANGED.TILES)
)
(* ;;; "Pruning out unchanged screen tiles")
(DEFINEQ
(PACKET-EQUAL
(LAMBDA (PACKET1 PACKET2) (* ; "Edited 24-Nov-86 14:36 by smL")
(* ;;
"Are the data parts of two packets equal?")
(AND (type? ETHERPACKET PACKET1)
(type? ETHERPACKET PACKET2)
(EQ (fetch (XIP XIPLENGTH) of PACKET1)
(fetch (XIP XIPLENGTH) of PACKET2))
(LET ((DATA-BYTES (DIFFERENCE (fetch (XIP XIPLENGTH) of PACKET1)
\XIPOVLEN)))
(AND (for I from 0 to (LRSH DATA-BYTES 1) bind (DATA1 _ (fetch (COMM.XFER.PACKET BITS)
of PACKET1))
(DATA2 _ (fetch (COMM.XFER.PACKET BITS)
of PACKET2))
always (EQ (\GETBASE DATA1 I)
(\GETBASE DATA2 I)))
(OR (ZEROP (LOGAND 1 DATA-BYTES))
(EQ (\GETBASEBYTE PACKET1 (SUB1 (fetch (XIP XIPLENGTH) of PACKET1)))
(\GETBASEBYTE PACKET2 (SUB1 (fetch (XIP XIPLENGTH) of PACKET1))))))))))
(GET-CACHED-PACKET
(LAMBDA (X Y PARTNERHOST PARTNERNET PARTNERSOCKET) (* ; "Edited 24-Nov-86 14:41 by smL")
(* ;; "Make sure the cursor pos in the packet is smashed to zero, and that the packet has actually been sent")
NIL))
(PUT-CACHED-PACKET
(LAMBDA (PACKET X Y PARTNERHOST PARTNERNET PARTNERSOCKET) (* ; "Edited 24-Nov-86 13:28 by smL")
T))
)
(* ;;; "Low level packet exchange code")
(DECLARE%: EVAL@COMPILE
(RPAQQ COMM.BAND.PACKET.TYPE 1321)
(RPAQQ COMM.CURSOR.PACKET.TYPE 2925)
(RPAQQ COMM.CURSOR.CLOSE.PACKET.TYPE 2926)
(RPAQQ COMM.SHUT.DOWN.PACKET.TYPE 4246)
(CONSTANTS COMM.BAND.PACKET.TYPE COMM.CURSOR.PACKET.TYPE COMM.CURSOR.CLOSE.PACKET.TYPE
COMM.SHUT.DOWN.PACKET.TYPE)
)
(CL:DEFCONSTANT MAX-PACKET-BITS (CL:* 400 8) )
(DECLARE%: EVAL@COMPILE
(ACCESSFNS COMM.XFER.PACKET ((COMMPACKET (fetch (XIP XIPCONTENTS) of DATUM)))
(BLOCKRECORD COMMPACKET ((SPREAD WORD)
(PACKET-TYPE WORD)
(CURSORX WORD)
(CURSORY WORD)
(DATAX WORD)
(DATAY WORD)
(THISWIDTH WORD)
(THISHEIGHT WORD)
(DATALOC 64 WORD)))
[ACCESSFNS COMM.XFER.PACKET ((BITS (LOCF (FETCH (COMM.XFER.PACKET DATALOC
) OF DATUM])
)
(* ;;; "Packing and unpacking bitmaps into etherpackets")
(DEFINEQ
(BMTOPACKET
(LAMBDA (BBT SOURCEBITMAP SOURCELEFT SOURCEBOTTOM WIDTH HEIGHT PACKETLOC SPREAD)
(* ; "Edited 24-Nov-86 10:48 by smL")
(* ;; "copy bitmap to packet")
(CL:ASSERT (AND (BITMAPP SOURCEBITMAP)
(<= 0 SOURCELEFT (- (BITMAPWIDTH SOURCEBITMAP)
WIDTH 1))
(<= 0 SOURCEBOTTOM (- (BITMAPHEIGHT SOURCEBITMAP)
HEIGHT 1))
(< 0 WIDTH)
(< 0 HEIGHT)))
(\PILOTBITBLT (create PILOTBBT
smashing (OR BBT (create PILOTBBT))
PBTWIDTH _ WIDTH PBTHEIGHT _ HEIGHT PBTFLAGS _ 0 PBTDESTBPL _ WIDTH
PBTDESTBIT _ 0 PBTUSEGRAY _ NIL PBTSOURCEBPL _ (CL:* (fetch (BITMAP
BITMAPRASTERWIDTH
)
of SOURCEBITMAP)
16
(+ SPREAD 1))
PBTSOURCEBIT _ SOURCELEFT PBTDISJOINT _ T PBTSOURCE _
(\ADDBASE (fetch (BITMAP BITMAPBASE) of SOURCEBITMAP)
(CL:* (fetch (BITMAP BITMAPRASTERWIDTH) of SOURCEBITMAP)
(- (fetch (BITMAP BITMAPHEIGHT) of SOURCEBITMAP)
HEIGHT SOURCEBOTTOM)))
PBTDEST _ PACKETLOC PBTOPERATION _ 0 PBTSOURCETYPE _ 0)
0)))
(PACKETTOBM
(LAMBDA (BBT PACKETLOC WIDTH HEIGHT DESTBITMAP DESTLEFT DESTBOTTOM SPREAD)
(* ; "Edited 24-Nov-86 10:48 by smL")
(* ;;
"Do a bitblt from a packet into a bitmap. Inverts BMTOPACKET.")
(CL:ASSERT (AND (BITMAPP DESTBITMAP)
(<= 0 DESTLEFT (- (BITMAPWIDTH DESTBITMAP)
WIDTH -1))
(<= 0 DESTBOTTOM (- (BITMAPHEIGHT DESTBITMAP)
(CL:* HEIGHT (CL:1+ SPREAD))
-1))
(< 0 WIDTH)
(< 0 HEIGHT)))
(\PILOTBITBLT (create PILOTBBT
smashing (OR BBT (create PILOTBBT))
PBTWIDTH _ WIDTH PBTHEIGHT _ HEIGHT PBTFLAGS _ 0 PBTDESTBPL _
(CL:* (fetch (BITMAP BITMAPRASTERWIDTH) of DESTBITMAP)
16
(CL:1+ SPREAD))
PBTDESTBIT _ DESTLEFT PBTUSEGRAY _ NIL PBTSOURCEBPL _ WIDTH PBTSOURCEBIT _
0 PBTDISJOINT _ T PBTSOURCE _ PACKETLOC PBTDEST _
(\ADDBASE (fetch (BITMAP BITMAPBASE) of DESTBITMAP)
(CL:* (fetch (BITMAP BITMAPRASTERWIDTH) of DESTBITMAP)
(- (fetch (BITMAP BITMAPHEIGHT) of DESTBITMAP)
HEIGHT DESTBOTTOM)))
PBTOPERATION _ 0 PBTSOURCETYPE _ 0)
0)))
)
(* ;;; "Displaying the viewing machine's cursor")
(RPAQQ REMOTE-CURSOR #*(16 16)@C@@@C@@@F@@@F@@@LGN@LDAIHDAMHDAO@DAONGNOLDDOHDDO@DBN@DBL@DAH@DA)
(RPAQ? CURSORICON NIL)
(* ;;; "Manipulating the frame that outlines the region being viewed")
(RPAQ? *FRAME-SHADE* GRAYSHADE)
(DEFINEQ
(FRAME-EVENT
[LAMBDA (WINDOW) (* ; "Edited 2-Apr-87 16:53 by Masinter")
(if (KEYDOWNP 'RIGHT)
then (CLOSE-FRAME (WINDOWPROP WINDOW 'FRAME))
else (LET [(FRAME (WINDOWPROP WINDOW 'FRAME]
(if (SHIFTDOWNP 'SHIFT)
then [SHAPE-FRAME FRAME (LET [(REGION (WINDOWPROP WINDOW 'FRAME-REGION]
(with REGION REGION (\SETCURSORPOSITION LEFT BOTTOM)
(GETREGION 32 32 REGION NIL NIL]
else (MOVE-FRAME WINDOW])
(MAKE-FRAME
[LAMBDA (REGION VIEWER-NAME) (* ; "Edited 2-Apr-87 16:46 by Masinter")
(LET (FRAME)
[with REGION REGION (SETQ FRAME (LIST (CREATEW (LIST (- LEFT 8)
(- BOTTOM 8)
8
(+ HEIGHT 8 8))
NIL 0)
(CREATEW (LIST LEFT (- BOTTOM 8)
(+ WIDTH 8)
8)
NIL 0)
(CREATEW (LIST (+ LEFT WIDTH)
BOTTOM 8 (+ HEIGHT 8))
NIL 0)
(CREATEW (LIST LEFT (+ BOTTOM HEIGHT)
WIDTH
(HEIGHTIFWINDOW 8 T 0))
"Viewed region" 0]
(for X in FRAME do (DSPTEXTURE *FRAME-SHADE* X)
(DSPRESET X)
(WINDOWPROP X 'FRAME-REGION REGION)
(WINDOWPROP X 'MINSIZE '(8 . 8))
(WINDOWPROP X 'FRAME FRAME)
(WINDOWPROP X 'RIGHTBUTTONFN (FUNCTION FRAME-EVENT))
(WINDOWPROP X 'BUTTONEVENTFN (FUNCTION FRAME-EVENT)))
FRAME])
(MOVE-FRAME
(LAMBDA (W) (* lmm "17-Nov-86 02:11")
(with REGION (WINDOWPROP W 'FRAME-REGION)
(SHAPE-FRAME (WINDOWPROP W 'FRAME)
(GETBOXREGION WIDTH HEIGHT LEFT BOTTOM)))))
(SHAPE-FRAME
(LAMBDA (FRAME REGION) (* ; "Edited 24-Nov-86 13:23 by smL")
(with REGION REGION (PROGN (SHAPEW (CAR FRAME)
(LIST (- LEFT 8)
(- BOTTOM 8)
8
(+ HEIGHT 8 8)))
(SHAPEW (CADR FRAME)
(LIST LEFT (- BOTTOM 8)
(+ WIDTH 8)
8))
(SHAPEW (CADDR FRAME)
(LIST (+ LEFT WIDTH)
BOTTOM 8 (+ HEIGHT 8)))
(SHAPEW (CADDDR FRAME)
(LIST LEFT (+ BOTTOM HEIGHT)
WIDTH
(HEIGHTIFWINDOW 8 (WINDOWPROP (CADDDR FRAME)
'TITLE)
(WINDOWPROP (CADDDR FRAME)
'BORDER))))))
(for X in FRAME do (CLEARW X)
(WINDOWPROP X 'FRAME-REGION REGION))))
(SET-FRAME-TITLE
(LAMBDA (FRAME TITLE) (* ; "Edited 24-Nov-86 13:07 by smL")
(WINDOWPROP (CAR (LAST FRAME))
'TITLE TITLE)))
)
(* ;;; "Changing the system parameters")
(DEFINEQ
(MAKE-MENUS-WINDOW
(LAMBDA (MENUS TITLE POSITION) (* ; "Edited 24-Nov-86 10:40 by smL")
(* ;;
"Make sure all the menu fields are filled in and up to date")
(for MENU in MENUS do (UPDATE/MENU/IMAGE MENU)) (* ;;
"Create a window big enough to hold all the menus, and put the menus in it")
(LET* ((MENU-GAP 5)
(INSIDE-WINDOW-WIDTH (PLUS MENU-GAP (for MENU in MENUS
sum (PLUS MENU-GAP (fetch (MENU IMAGEWIDTH)
of MENU)))))
(INSIDE-WINDOW-HEIGHT (PLUS MENU-GAP MENU-GAP (for MENU in MENUS
largest (fetch (MENU IMAGEHEIGHT)
of MENU)
finally (RETURN $$EXTREME))))
(CONTROL-WINDOW (CREATEW (if POSITION
then (CREATEPOSITION (fetch XCOORD of POSITION)
(fetch YCOORD of POSITION))
else (GETBOXREGION (WIDTHIFWINDOW INSIDE-WINDOW-WIDTH)
(HEIGHTIFWINDOW INSIDE-WINDOW-HEIGHT TITLE)
NIL NIL NIL "Position the Mode Menu"))
TITLE)))
(for MENU in MENUS bind (LEFT _ MENU-GAP)
do (ADDMENU MENU CONTROL-WINDOW (CREATEPOSITION LEFT (QUOTIENT
(DIFFERENCE INSIDE-WINDOW-HEIGHT
(fetch (MENU IMAGEHEIGHT)
of MENU))
2)))
(add LEFT (fetch (MENU IMAGEWIDTH) of MENU)
MENU-GAP))
CONTROL-WINDOW)))
(MODE-MENU
(LAMBDA NIL (* ; "Edited 24-Nov-86 16:52 by smL")
(LET ((UPDATE-MENU (create MENU
CENTERFLG _ T
MENUTITLEFONT _ BOLDFONT
WHENSELECTEDFN _ (FUNCTION (LAMBDA (ITEM MENU BUTTON)
(MENUDESELECT COMM.DEFAULT.TRANSMIT.TYPE
MENU)
(MENUSELECT ITEM MENU)
(CHANGE-SENDER-UPDATE-MODE ITEM)))
TITLE _ "Update method"
ITEMS _ COMM-MODES))
(MOUSE-POS-UPDATE-MENU (create MENU
CENTERFLG _ T
MENUTITLEFONT _ BOLDFONT
WHENSELECTEDFN _ (FUNCTION (LAMBDA (ITEM MENU BUTTON)
(MENUDESELECT
COMM.UPDATE.MOUSE.POSITION
MENU)
(MENUSELECT ITEM MENU)
(SETQ COMM.UPDATE.MOUSE.POSITION
ITEM)))
TITLE _ "Update near cursor?"
ITEMS _ '(Sender Viewer NIL)))
(SEND-UNCHANGED-TILES-MENU (create MENU
CENTERFLG _ T
MENUTITLEFONT _ BOLDFONT
WHENSELECTEDFN _ (FUNCTION (LAMBDA (ITEM MENU BUTTON)
(MENUDESELECT
COMM.SEND.UNCHANGED.TILES
MENU)
(MENUSELECT ITEM MENU)
(SETQ
COMM.SEND.UNCHANGED.TILES
ITEM)))
TITLE _ "Send unchanged tiles?"
ITEMS _ '(T NIL)))
(LIGHTNING-MENU (create MENU
CENTERFLG _ T
MENUTITLEFONT _ BOLDFONT
WHENSELECTEDFN _ (FUNCTION (LAMBDA (ITEM MENU BUTTON)
(MENUDESELECT \ETHERLIGHTNING MENU)
(MENUSELECT ITEM MENU)
(SETQ \ETHERLIGHTNING ITEM)))
TITLE _ "Ether Lightning"
ITEMS _ '(NIL 3 6 1 4 7 2 5 8)
MENUROWS _ 3))) (* ;; "")
(* ;;
"Bring up a window with all the menus, at a location the user specifies")
(* ;; "")
(MAKE-MENUS-WINDOW (LIST UPDATE-MENU MOUSE-POS-UPDATE-MENU SEND-UNCHANGED-TILES-MENU
LIGHTNING-MENU)
"Send-Bits mode menu") (* ;; "")
(* ;;
"Highlight the current values, so the user can see what the current values are.")
(* ;; "")
(MENUSELECT COMM.DEFAULT.TRANSMIT.TYPE UPDATE-MENU)
(MENUSELECT COMM.UPDATE.MOUSE.POSITION MOUSE-POS-UPDATE-MENU)
(MENUSELECT COMM.SEND.UNCHANGED.TILES SEND-UNCHANGED-TILES-MENU)
(MENUSELECT \ETHERLIGHTNING LIGHTNING-MENU))))
)
(RPAQQ COMM-MODES (SQUARE RECTANGLE HORIZONTAL VERTICAL H3))
(* ;;; "Initialization")
(COURIER.START.SERVER)
(* ;;; "Unused stuff, as far as I can tell")
(DEFINEQ
(FASTBITBLT
(LAMBDA (BBT SOURCEBITMAP SOURCELEFT SOURCEBOTTOM WIDTH HEIGHT DESTBITMAP DESTLEFT DESTBOTTOM)
(* lmm "17-Nov-86 03:55")
(* ;; "copy bitmap to bitmap")
(CL:ASSERT (AND (BITMAPP SOURCEBITMAP)
(BITMAPP DESTBITMAP)
(<= 0 SOURCELEFT (- (BITMAPWIDTH SOURCEBITMAP)
WIDTH 1))
(<= 0 SOURCEBOTTOM (- (BITMAPHEIGHT SOURCEBITMAP)
HEIGHT 1))
(<= 0 DESTLEFT (- (BITMAPWIDTH DESTBITMAP)
WIDTH 1))
(<= 0 DESTBOTTOM (- (BITMAPHEIGHT DESTBITMAP)
HEIGHT 1))
(< 0 WIDTH)
(< 0 HEIGHT)))
(\PILOTBITBLT (create PILOTBBT smashing (OR BBT (create PILOTBBT))
PBTWIDTH _ WIDTH PBTHEIGHT _ HEIGHT PBTFLAGS _ 0 PBTDESTBPL
_ (CL:* (fetch (BITMAP BITMAPRASTERWIDTH) of DESTBITMAP)
16)
PBTDESTBIT _ DESTLEFT PBTUSEGRAY _ NIL PBTSOURCEBPL _
(CL:* (fetch (BITMAP BITMAPRASTERWIDTH) of SOURCEBITMAP)
16)
PBTSOURCEBIT _ SOURCELEFT PBTDISJOINT _ T PBTSOURCE _
(\ADDBASE (fetch (BITMAP BITMAPBASE) of SOURCEBITMAP)
(CL:* (fetch (BITMAP BITMAPRASTERWIDTH) of
SOURCEBITMAP
)
(- (fetch (BITMAP BITMAPHEIGHT) of SOURCEBITMAP
)
HEIGHT SOURCEBOTTOM)))
PBTDEST _ (\ADDBASE (fetch (BITMAP BITMAPBASE) of DESTBITMAP
)
(CL:* (fetch (BITMAP BITMAPRASTERWIDTH)
of DESTBITMAP)
(- (fetch (BITMAP BITMAPHEIGHT)
of DESTBITMAP)
HEIGHT DESTBOTTOM)))
PBTOPERATION _ 0 PBTSOURCETYPE _ 0)
0)))
)
(* ;;; "System file dependencies")
(DECLARE%: DONTCOPY DOEVAL@COMPILE
(FILESLOAD (LOADCOMP)
LLDISPLAY LLETHER LLNS)
)
(COURIERPROGRAM COMMWINDOW (1337 1)
TYPES
[(REGION (RECORD (LEFT INTEGER)
(BOTTOM INTEGER)
(WIDTH INTEGER)
(HEIGHT INTEGER)))
(USERNAME STRING)
(RESPONSE (RECORD (SOCKET LONGINTEGER)
(CORRESPONDENT USERNAME]
PROCEDURES
((START-GET-BITS 1 (REGION USERNAME)
RETURNS
(RESPONSE)
REPORTS
(REMOTEERROR)
IMPLEMENTEDBY START-GET-BITS))
ERRORS
((ERROR 1 (STRING))
(USE.COURIER 2 NIL)))
(PUTPROPS COMMWINDOW COPYRIGHT ("Xerox Corporation" 1986 1900 1987))
(DECLARE%: DONTCOPY
(FILEMAP (NIL (3203 13134 (CLOSE-FRAME 3213 . 3364) (GET-BITS 3366 . 11655) (START-GET-BITS 11657 .
13132)) (13189 26236 (SEND-BITS 13199 . 16020) (SEND-TILE 16022 . 19145) (LISTEN-TO-VIEWER 19147 .
20450) (MAPTILES 20452 . 25175) (SHUT-DOWN-VIEWER 25177 . 26046) (CHANGE-SENDER-UPDATE-MODE 26048 .
26234)) (27219 29090 (PACKET-EQUAL 27229 . 28632) (GET-CACHED-PACKET 28634 . 28949) (PUT-CACHED-PACKET
28951 . 29088)) (30529 34252 (BMTOPACKET 30539 . 32500) (PACKETTOBM 32502 . 34250)) (34556 38865 (
FRAME-EVENT 34566 . 35224) (MAKE-FRAME 35226 . 37008) (MOVE-FRAME 37010 . 37280) (SHAPE-FRAME 37282 .
38672) (SET-FRAME-TITLE 38674 . 38863)) (38915 45792 (MAKE-MENUS-WINDOW 38925 . 41284) (MODE-MENU
41286 . 45790)) (45968 48955 (FASTBITBLT 45978 . 48953)))))
STOP