summaryrefslogtreecommitdiffstats
path: root/macosx/HBPreviewController.m
blob: 3ec00d2a3a4addedffe277c5800ce6245e1ccf96 (plain)
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
/* $Id: HBPreviewController.mm,v 1.11 2005/08/01 15:10:44 titer Exp $

   This file is part of the HandBrake source code.
   Homepage: <http://handbrake.fr/>.
   It may be used under the terms of the GNU General Public License. */

#import "HBPreviewController.h"
#import "Controller.h"

@implementation QTMovieView ( HBQTkitExt )
- (void) mouseMoved:(NSEvent *)theEvent
{
    [super mouseMoved:theEvent];
}
@end



@interface PreviewController (Private)

- (NSSize)optimalViewSizeForImageSize: (NSSize)imageSize;
- (void)resizeSheetForViewSize: (NSSize)viewSize;
- (void)setViewSize: (NSSize)viewSize;
- (BOOL)viewNeedsToResizeToSize: (NSSize)newSize;

@end

@implementation PreviewController

- (id)init
{
	if (self = [super initWithWindowNibName:@"PicturePreview"])
	{
        // NSWindowController likes to lazily load its window. However since
        // this controller tries to set all sorts of outlets before the window
        // is displayed, we need it to load immediately. The correct way to do
        // this, according to the documentation, is simply to invoke the window
        // getter once.
        //
        // If/when we switch a lot of this stuff to bindings, this can probably
        // go away.
        [self window];
        
		fPicturePreviews = [[NSMutableDictionary dictionaryWithCapacity: HB_NUM_HBLIB_PICTURES] retain];
        /* Init libhb with check for updates libhb style set to "0" so its ignored and lets sparkle take care of it */
        int loggingLevel = [[[NSUserDefaults standardUserDefaults] objectForKey:@"LoggingLevel"] intValue];
        fPreviewLibhb = hb_init(loggingLevel, 0);
        
        

	}
	return self;
}


//------------------------------------------------------------------------------------
// Displays and brings the picture window to the front
//------------------------------------------------------------------------------------
- (IBAction) showPreviewWindow: (id)sender
{
    [self showWindow:sender];
    [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"PreviewWindowIsOpen"];
    
    /* lets set the preview window to accept mouse moved events */
    [fPreviewWindow setAcceptsMouseMovedEvents:YES];
    hudTimerSeconds = 0;
    [self pictureSliderChanged:nil];
    [self startReceivingLibhbNotifications];
}

- (void)setHBController: (HBController *)controller
{
    fHBController = controller;
}

- (void)awakeFromNib
{
    [fPreviewWindow setDelegate:self];
    if( ![[self window] setFrameUsingName:@"Preview"] )
        [[self window] center];
    [self setWindowFrameAutosaveName:@"Preview"];
    [[self window] setExcludedFromWindowsMenu:YES];
    
    /* lets set the preview window to accept mouse moved events */
    [fPreviewWindow setAcceptsMouseMovedEvents:YES];
    //[self pictureSliderChanged:nil];
    [self startReceivingLibhbNotifications];
    
    hudTimerSeconds = 0;
    /* we set the progress indicator to not use threaded animation
     * as it causes a conflict with the qtmovieview's controllerbar
    */
    [fMovieCreationProgressIndicator setUsesThreadedAnimation:NO];
    
    /* Setup our layers for core animation */
    [fPictureViewArea setWantsLayer:YES];
    [fPictureView setWantsLayer:YES];

    [fCancelPreviewMovieButton setWantsLayer:YES];
    [fMovieCreationProgressIndicator setWantsLayer:YES];

    [fPictureControlBox setWantsLayer:YES];
    [fEncodingControlBox setWantsLayer:YES];
	[fMovieView setWantsLayer:YES];
	[fMovieView setHidden:YES];
    [fMovieView setDelegate:self];

    /* Since the xib has everything off center for easy acess
     * we align our views and windows here we an align to anything
     * since it will actually change later upon source load, but
     * for convenience we will use the fPictureViewArea
     */
     
     /* Align the still preview image view to the picture box */
     [fPictureView setFrameSize:[fPictureViewArea frame].size];
     [fMovieView setFrameSize:[fPictureViewArea frame].size];
     //[fPreviewWindow setFrameSize:[fPictureViewArea frame].size];
    
    
}
- (BOOL)acceptsMouseMovedEvents
{
    return YES;
}

- (void)windowWillClose:(NSNotification *)aNotification
{
    /* Upon closing the preview window, we make sure we clean up any
     * preview movie that might be playing or encoding. However, first
     * make sure we have a preview picture before calling pictureSliderChanged
     * to go back to still previews .. just in case nothing is loaded up like in
     * a Launch, cancel new scan then quit type scenario.
     */
    if (fPicture)
    {
        [self pictureSliderChanged:nil];
        [fMovieTimer invalidate];
        [fMovieTimer release];
    }
    
    hudTimerSeconds = 0;
    [[NSUserDefaults standardUserDefaults] setBool:NO forKey:@"PreviewWindowIsOpen"];
}

- (BOOL)windowShouldClose:(id)fPictureWindow
{
     return YES;
}

- (void) dealloc
{
    hb_stop(fPreviewLibhb);
    if (fPreviewMoviePath)
    {
        [[NSFileManager defaultManager] removeItemAtPath:fPreviewMoviePath error:nil];
        [fPreviewMoviePath release];
    }    
    
    [fLibhbTimer invalidate];
    [fLibhbTimer release];
    
    [fHudTimer invalidate];
    [fHudTimer release];
    
    [fMovieTimer invalidate];
    [fMovieTimer release];
    
    [fPicturePreviews release];
    [fFullScreenWindow release];
    
    hb_close(&fPreviewLibhb);
    
    [self removeMovieCallbacks];
    
    [super dealloc];
}

- (void) SetHandle: (hb_handle_t *) handle
{
    fHandle = handle;
    

    
    /* we set the preview length popup in seconds */
    [fPreviewMovieLengthPopUp removeAllItems];
    [fPreviewMovieLengthPopUp addItemWithTitle: @"15"];
    [fPreviewMovieLengthPopUp addItemWithTitle: @"30"];
    [fPreviewMovieLengthPopUp addItemWithTitle: @"45"];
    [fPreviewMovieLengthPopUp addItemWithTitle: @"60"];
    [fPreviewMovieLengthPopUp addItemWithTitle: @"90"];
    [fPreviewMovieLengthPopUp addItemWithTitle: @"105"];
    [fPreviewMovieLengthPopUp addItemWithTitle: @"120"];
    
    /* adjust the preview slider length */
    /* We use our advance pref to determine how many previews we scanned */
    int hb_num_previews = [[[NSUserDefaults standardUserDefaults] objectForKey:@"PreviewsNumber"] intValue];
    [fPictureSlider setMaxValue: hb_num_previews - 1.0];
    [fPictureSlider setNumberOfTickMarks: hb_num_previews];
    
    if ([[NSUserDefaults standardUserDefaults] objectForKey:@"PreviewLength"])
    {
        [fPreviewMovieLengthPopUp selectItemWithTitle:[[NSUserDefaults standardUserDefaults] objectForKey:@"PreviewLength"]];
    }
    else
    {
        /* currently hard set default to 10 seconds */
        [fPreviewMovieLengthPopUp selectItemAtIndex: 1];
    }
}

- (void) SetTitle: (hb_title_t *) title
{
    hb_job_t * job = title->job;
    
    fTitle = title;
    fPicture = 0;
    MaxOutputWidth = title->width - job->crop[2] - job->crop[3];
    MaxOutputHeight = title->height - job->crop[0] - job->crop[1];
    
    [self SettingsChanged: nil];

}



// Adjusts the window to draw the current picture (fPicture) adjusting its size as
// necessary to display as much of the picture as possible.
- (void) displayPreview 
{
    hb_job_t * job = fTitle->job;
    /* lets make sure that the still picture view is not hidden and that 
     * the movie preview is 
     */
     aMovie = nil;
    [fMovieView pause:nil];
    [fMovieView setHidden:YES];
	[fMovieView setMovie:nil];
    [fMovieCreationProgressIndicator stopAnimation: nil];
    [fMovieCreationProgressIndicator setHidden: YES];
    [fMoviePlaybackControlBox setHidden: YES];
    if( fMovieTimer )
    {
        [self stopMovieTimer];
    }
    [fPictureControlBox setHidden: NO];
    
    [fPictureView setHidden:NO];
    
    NSImage *fPreviewImage = [self imageForPicture: fPicture];
    NSSize imageScaledSize = [fPreviewImage size];
    [fPictureView setImage: fPreviewImage];
    
    NSSize displaySize = NSMakeSize( ( CGFloat )fTitle->width, ( CGFloat )fTitle->height );
    NSString *sizeInfoString;
    /* Set the picture size display fields below the Preview Picture*/
    if( fTitle->job->anamorphic.mode == 1 ) // Original PAR Implementation
    {
        output_width = fTitle->width-fTitle->job->crop[2]-fTitle->job->crop[3];
        output_height = fTitle->height-fTitle->job->crop[0]-fTitle->job->crop[1];
        display_width = output_width * fTitle->job->anamorphic.par_width / fTitle->job->anamorphic.par_height;
        sizeInfoString = [NSString stringWithFormat:
                          @"Source: %dx%d, Output: %dx%d, Anamorphic: %dx%d Strict",
                          fTitle->width, fTitle->height, output_width, output_height, display_width, output_height];
        
        displaySize.width = display_width;
        displaySize.height = fTitle->height;
        imageScaledSize.width = display_width;
        imageScaledSize.height = output_height;   
    }
    else if (fTitle->job->anamorphic.mode == 2) // Loose Anamorphic
    {
        hb_set_anamorphic_size(job, &output_width, &output_height, &output_par_width, &output_par_height);
        display_width = output_width * output_par_width / output_par_height;
        sizeInfoString = [NSString stringWithFormat:
                          @"Source: %dx%d, Output: %dx%d, Anamorphic: %dx%d Loose",
                          fTitle->width, fTitle->height, output_width, output_height, display_width, output_height];
        
        displaySize.width = display_width;
        displaySize.height = fTitle->height;
        imageScaledSize.width = display_width;
        imageScaledSize.height = output_height;
    }
    else if (fTitle->job->anamorphic.mode == 3) // Custom Anamorphic
    {
        hb_set_anamorphic_size(job, &output_width, &output_height, &output_par_width, &output_par_height);
        display_width = output_width * output_par_width / output_par_height;
        sizeInfoString = [NSString stringWithFormat:
                          @"Source: %dx%d, Output: %dx%d, Anamorphic: %dx%d Custom",
                          fTitle->width, fTitle->height, output_width, output_height, fTitle->job->anamorphic.dar_width, fTitle->job->anamorphic.dar_height];
        
        displaySize.width = fTitle->job->anamorphic.dar_width + fTitle->job->crop[2] + fTitle->job->crop[3] ;
        displaySize.height = fTitle->job->anamorphic.dar_height + fTitle->job->crop[0] + fTitle->job->crop[1];
        imageScaledSize.width = (int)fTitle->job->anamorphic.dar_width;
        imageScaledSize.height = (int)fTitle->job->height;   
    } 
    else // No Anamorphic
    {
        sizeInfoString = [NSString stringWithFormat:
                          @"Source: %dx%d, Output: %dx%d", fTitle->width, fTitle->height,
                          fTitle->job->width, fTitle->job->height];
       
        displaySize.width = fTitle->width;
        displaySize.height = fTitle->height;
        imageScaledSize.width = fTitle->job->width;
        imageScaledSize.height = fTitle->job->height;
    }
    
    
    
    NSSize viewSize = [self optimalViewSizeForImageSize:displaySize];
    [self resizeSheetForViewSize:viewSize];

    NSSize windowSize = [[self window] frame].size;    
    
    if (scaleToScreen == YES)
    {
        /* Note: this should probably become a utility function */
        /* We are in Scale To Screen mode so, we have to get the ratio for height and width against the window
         *size so we can scale from there.
         */
        CGFloat deltaWidth = imageScaledSize.width / displaySize.width;
        CGFloat deltaHeight = imageScaledSize.height /displaySize.height;
        NSSize windowSize = [[self window] frame].size;  
        CGFloat pictureAspectRatio = imageScaledSize.width / imageScaledSize.height;
        
        /* Set our min size to the storage size */
        NSSize minSize;
        minSize.width = fTitle->width;
        minSize.height = fTitle->height;

        /* Set delta's based on minimum size */
        if (imageScaledSize.width <  minSize.width)
        {
            deltaWidth = imageScaledSize.width / minSize.width;
        }
        else
        {
            deltaWidth = 1.0;
        }
        
        if (imageScaledSize.height <  minSize.height)
        {
            deltaHeight =  imageScaledSize.height / minSize.height;
        }
        else
        {
            deltaHeight = 1.0;
        }
        
        /* Now apply our deltas to the full screen view */
        if (pictureAspectRatio > 1.0) // we are wider than taller, so expand the width to fill the area and scale the height
        {
            viewSize.width = windowSize.width * deltaWidth;
            viewSize.height = viewSize.width / pictureAspectRatio;
            
        }
        else
        {
            viewSize.height = windowSize.height * deltaHeight; 
            viewSize.width = viewSize.height * pictureAspectRatio;
        }
        
    }
    else
    {
        viewSize.width = viewSize.width - (viewSize.width - imageScaledSize.width);
        viewSize.height = viewSize.height - (viewSize.height - imageScaledSize.height);
        
        if (fTitle->width > windowSize.width || fTitle->height > windowSize.height)
        {
            CGFloat viewSizeAspect = viewSize.width / viewSize.height;
            if (viewSizeAspect > 1.0) // we are wider than taller, so expand the width to fill the area and scale the height
            {
                viewSize.width = viewSize.width * (windowSize.width / fTitle->width) ;
                viewSize.height = viewSize.width / viewSizeAspect;
            }
            else
            {
                viewSize.height = viewSize.height * (windowSize.height / fTitle->height);
                viewSize.width = viewSize.height * viewSizeAspect;
            }
        }
        
    }
    
    [self setViewSize:viewSize];
    
    /* relocate our hud origins as per setViewSize */
    NSPoint hudControlBoxOrigin = [fPictureControlBox frame].origin;
    hudControlBoxOrigin.y = ([[self window] frame].size.height / 2) - (viewSize.height / 2);
    hudControlBoxOrigin.x = ([[self window] frame].size.width / 2) - ([fPictureControlBox frame].size.width / 2);
    [fPictureControlBox setFrameOrigin:hudControlBoxOrigin];
    [fEncodingControlBox setFrameOrigin:hudControlBoxOrigin];
    [fMoviePlaybackControlBox setFrameOrigin:hudControlBoxOrigin];


    NSString *scaleString;
    CGFloat scale = ( ( CGFloat )[fPictureView frame].size.width) / ( ( CGFloat )imageScaledSize.width);
    if (scale * 100.0 != 100)
    {
        scaleString = [NSString stringWithFormat:
                       NSLocalizedString( @" (%.0f%% actual size)",
                                         @"String shown when a preview is scaled" ), scale * 100.0];
    }
    else
    {
        scaleString = @"(Actual size)";
    }
    
    if (scaleToScreen == YES)
    {
        scaleString = [scaleString stringByAppendingString:@" Scaled To Screen"];
    }
    /* Set the info fields in the hud controller */
    [fInfoField setStringValue: [NSString stringWithFormat:
                                 @"%@", sizeInfoString]];
    
    [fscaleInfoField setStringValue: [NSString stringWithFormat:
                                      @"%@", scaleString]];
    /* Set the info field in the window title bar */
    [[self window] setTitle:[NSString stringWithFormat: @"Preview - %@ %@",sizeInfoString, scaleString]];
}

- (IBAction) previewDurationPopUpChanged: (id) sender
{
    
    [[NSUserDefaults standardUserDefaults] setObject:[fPreviewMovieLengthPopUp titleOfSelectedItem] forKey:@"PreviewLength"];
    
}    
    
- (IBAction) SettingsChanged: (id) sender
{
         // Purge the existing picture previews so they get recreated the next time
        // they are needed.
        [self purgeImageCache];
        [self pictureSliderChanged:nil];
}

- (IBAction) pictureSliderChanged: (id) sender
{
    /* Run cancelCreateMoviePreview in case a preview is being encoded and then cancel if so */
    [self cancelCreateMoviePreview:nil];
    
    // Show the picture view
    [fPictureView setHidden:NO];
    [fMovieView pause:nil];
    [fMovieView setHidden:YES];
	[fMovieView setMovie:nil];
    [fEncodingControlBox setHidden: YES];
    
    int newPicture = [fPictureSlider intValue];
    if (newPicture != fPicture)
    {
        fPicture = newPicture;
    }
    [self displayPreview];
    
}

- (IBAction)showPreviewPanel: (id)sender forTitle: (hb_title_t *)title
{
    if ([fPreviewWindow isVisible])
    {
        [fPreviewWindow close];
    }
    else
    {
        [self showWindow:sender];
        [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"PreviewWindowIsOpen"];
        [fPreviewWindow setAcceptsMouseMovedEvents:YES];
        scaleToScreen = NO;
        [self pictureSliderChanged:nil];
    }
    
}

- (NSString*) pictureSizeInfoString
{
    return [fInfoField stringValue];
}

- (IBAction)showPictureSettings:(id)sender
{
    [fHBController showPicturePanel:self];
}

#pragma mark Hud Control Overlay
/* enableHudControls and disableHudControls are used to sync enableUI
 * in HBController so that during a scan we do not attempt to access source
 * images, etc. which can cause a crash. In general this ui behavior will mirror
 * the main window ui's enableUI method and in fact is called from there */
- (void) enableHudControls
{
    [fPictureSlider setEnabled:YES];
    [fScaleToScreenToggleButton setEnabled:YES];
    [fCreatePreviewMovieButton setEnabled:YES];
    [fGoToStillPreviewButton setEnabled:YES];
    [fHBController writeToActivityLog: "Preview: Enabling HUD Controls"];
}

- (void) disableHudControls
{
    [fPictureSlider setEnabled:NO];
    [fScaleToScreenToggleButton setEnabled:NO];
    [fCreatePreviewMovieButton setEnabled:NO];
    [fGoToStillPreviewButton setEnabled:NO];
    [fHBController writeToActivityLog: "Preview: Disabling HUD Controls"];
}

- (void) mouseMoved:(NSEvent *)theEvent
{
    [super mouseMoved:theEvent];
    NSPoint mouseLoc = [theEvent locationInWindow];
    
    /* Test for mouse location to show/hide hud controls */
    if( isEncoding == NO ) 
    {
        /* Since we are not encoding, verify which control hud to show
         * or hide based on aMovie ( aMovie indicates we need movie controls )
         */
        NSBox           * hudBoxToShow;
        if ( aMovie == nil ) // No movie loaded up
        {
            hudBoxToShow = fPictureControlBox;
        }
        else // We have a movie
        {
            hudBoxToShow = fMoviePlaybackControlBox;
        }
        
        if( NSPointInRect( mouseLoc, [fPictureControlBox frame] ) )
        {
            [[hudBoxToShow animator] setHidden: NO];
            [self stopHudTimer];
        }
		else if( NSPointInRect( mouseLoc, [fPictureViewArea frame] ) )
        {
            [[hudBoxToShow animator] setHidden: NO];
            [self startHudTimer];
        }
        else
        {
            [[hudBoxToShow animator] setHidden: YES];
        }
	}
}

- (void) startHudTimer
{
	if( fHudTimer ) {
		[fHudTimer invalidate];
		[fHudTimer release];
	}
    fHudTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(hudTimerFired:) userInfo:nil repeats:YES];
    [fHudTimer retain];
}

- (void) stopHudTimer
{
    if( fHudTimer )
    {
        [fHudTimer invalidate];
        [fHudTimer release];
        fHudTimer = nil;
        hudTimerSeconds = 0;
    }
}

- (void) hudTimerFired: (NSTimer*)theTimer
{
    hudTimerSeconds++;
    if( hudTimerSeconds >= 10 ) 
    {
        /* Regardless which control box is active, after the timer
         * period we want either one to fade to hidden.
         */
        [[fPictureControlBox animator] setHidden: YES];
        [[fMoviePlaybackControlBox animator] setHidden: YES];
        [self stopHudTimer];
    }
}



- (IBAction)toggleScaleToScreen:(id)sender
{
    if (scaleToScreen == YES)
    {
        scaleToScreen = NO;
        /* make sure we are set to a still preview */
        [self pictureSliderChanged:nil];
        [fScaleToScreenToggleButton setTitle:@"Scale To Screen"];
    }
    else
    {
        scaleToScreen = YES;
        /* make sure we are set to a still preview */
        [self pictureSliderChanged:nil];
        [fScaleToScreenToggleButton setTitle:@"Actual Scale"];
    }
    
}



// Title-less windows normally don't receive key presses, override this
- (BOOL)canBecomeKeyWindow
{
    return YES;
}

// Title-less windows normally can't become main which means that another
// non-fullscreen window will have the "active" titlebar in expose. Bad, fix it.
- (BOOL)canBecomeMainWindow
{
    return YES;
}


- (IBAction)goWindowedScreen:(id)sender
{
    
    /* Get the screen info to release the display but don't actually do
     * it until the windowed screen is setup.
     */
    scaleToScreen = NO;
    [self pictureSliderChanged:nil];
    [fScaleToScreenToggleButton setTitle:@"<->"];
        
    NSScreen* mainScreen = [NSScreen mainScreen]; 
    NSDictionary* screenInfo = [mainScreen deviceDescription]; 
    NSNumber* screenID = [screenInfo objectForKey:@"NSScreenNumber"];
    CGDirectDisplayID displayID = (CGDirectDisplayID)[screenID longValue]; 
    
    [fFullScreenWindow dealloc];
    [fFullScreenWindow release];
    
    
    [fPreviewWindow setContentView:fPictureViewArea]; 
    [fPictureViewArea setNeedsDisplay:YES];
    [self setWindow:fPreviewWindow];
    
    // Show the window. 
    [fPreviewWindow makeKeyAndOrderFront:self];
    
    /* Set the window back to regular level */
    [fPreviewWindow setLevel:NSNormalWindowLevel];
    
    /* Set the isFullScreen flag back to NO */
    //isFullScreen = NO;
    scaleToScreen = NO;
    /* make sure we are set to a still preview */
    [self pictureSliderChanged:nil];
    [self showPreviewWindow:nil];
    
    /* Change the name of fFullScreenToggleButton appropriately */
    //[fFullScreenToggleButton setTitle: @"Full Screen"];
    // [fScaleToScreenToggleButton setHidden:YES];
    /* set the picture settings pallete back to normal level */
    [fHBController picturePanelWindowed];
    
    /* Release the display now that the we are back in windowed mode */
    CGDisplayRelease(displayID);
    
    [fPreviewWindow setAcceptsMouseMovedEvents:YES];
    //[fFullScreenWindow setAcceptsMouseMovedEvents:NO];
    
    hudTimerSeconds = 0;
    [self startHudTimer];
    
}


#pragma mark Still Preview Image Processing


// This function converts an image created by libhb (specified via pictureIndex) into
// an NSImage suitable for the GUI code to use. If removeBorders is YES,
// makeImageForPicture crops the image generated by libhb stripping off the gray
// border around the content. This is the low-level method that generates the image.
// -imageForPicture calls this function whenever it can't find an image in its cache.
+ (NSImage *) makeImageForPicture: (int)pictureIndex
                libhb:(hb_handle_t*)handle
                title:(hb_title_t*)title
{
    static uint8_t * buffer;
    static int bufferSize;

    // Make sure we have a big enough buffer to receive the image from libhb. libhb
    int dstWidth = title->job->width;
    int dstHeight = title->job->height;
        
    int newSize;
    newSize = dstWidth * dstHeight * 4;
    if( bufferSize < newSize )
    {
        bufferSize = newSize;
        buffer     = (uint8_t *) realloc( buffer, bufferSize );
    }

    hb_get_preview( handle, title, pictureIndex, buffer );

    // Create an NSBitmapImageRep and copy the libhb image into it, converting it from
    // libhb's format to one suitable for NSImage. Along the way, we'll strip off the
    // border around libhb's image.
        
    // The image data returned by hb_get_preview is 4 bytes per pixel, BGRA format.
    // Alpha is ignored.
        
    NSBitmapFormat bitmapFormat = (NSBitmapFormat)NSAlphaFirstBitmapFormat;
    NSBitmapImageRep * imgrep = [[[NSBitmapImageRep alloc]
            initWithBitmapDataPlanes:nil
            pixelsWide:dstWidth
            pixelsHigh:dstHeight
            bitsPerSample:8
            samplesPerPixel:3   // ignore alpha
            hasAlpha:NO
            isPlanar:NO
            colorSpaceName:NSCalibratedRGBColorSpace
            bitmapFormat:bitmapFormat
            bytesPerRow:dstWidth * 4
            bitsPerPixel:32] autorelease];

    UInt32 * src = (UInt32 *)buffer;
    UInt32 * dst = (UInt32 *)[imgrep bitmapData];
    int r, c;
    for (r = 0; r < dstHeight; r++)
    {
        for (c = 0; c < dstWidth; c++)
#if TARGET_RT_LITTLE_ENDIAN
            *dst++ = Endian32_Swap(*src++);
#else
            *dst++ = *src++;
#endif
    }

    NSImage * img = [[[NSImage alloc] initWithSize: NSMakeSize(dstWidth, dstHeight)] autorelease];
    [img addRepresentation:imgrep];

    return img;
}

// Returns the preview image for the specified index, retrieving it from its internal
// cache or by calling makeImageForPicture if it is not cached. Generally, you should
// use imageForPicture so that images are cached. Calling makeImageForPicture will
// always generate a new copy of the image.
- (NSImage *) imageForPicture: (int) pictureIndex
{
    // The preview for the specified index may not currently exist, so this method
    // generates it if necessary.
    NSString * key = [NSString stringWithFormat:@"%d", pictureIndex];
    NSImage * theImage = [fPicturePreviews objectForKey:key];
    if (!theImage)
    {
        theImage = [PreviewController makeImageForPicture:pictureIndex libhb:fHandle title:fTitle];
        [fPicturePreviews setObject:theImage forKey:key];
    }
    return theImage;
}

// Purges all images from the cache. The next call to imageForPicture will cause a new
// image to be generated.
- (void) purgeImageCache
{
    [fPicturePreviews removeAllObjects];
}

 

#pragma mark Movie Preview

- (IBAction) cancelCreateMoviePreview: (id) sender
{
    
    hb_state_t s;
    hb_get_state2( fPreviewLibhb, &s );
    
    if(isEncoding && (s.state == HB_STATE_WORKING || s.state == HB_STATE_PAUSED))
    {
        hb_stop( fPreviewLibhb );
        [fPictureView setHidden:NO];
        [fMovieView pause:nil];
        [fMovieView setHidden:YES];
		[fMovieView setMovie:nil];
        [fPictureSlider setHidden:NO];
        isEncoding = NO;
        
        [self pictureSliderChanged:nil];
        
        return;
    }
    
}

- (IBAction) createMoviePreview: (id) sender
{
    
    
    /* Lets make sure the still picture previews are showing in case
     * there is currently a movie showing */
    [self pictureSliderChanged:nil];
    
    /* Rip or Cancel ? */
    hb_state_t s;
    hb_get_state2( fPreviewLibhb, &s );
    
    if(sender == fCancelPreviewMovieButton && (s.state == HB_STATE_WORKING || s.state == HB_STATE_PAUSED))
    {
        hb_stop( fPreviewLibhb );
        [fPictureView setHidden:NO];
        [fMovieView pause:nil];
        [fMovieView setHidden:YES];
		[fMovieView setMovie:nil];
        [fPictureSlider setHidden:NO];
        isEncoding = NO;
        
        return;
    }
    
    
    /* we use controller.mm's prepareJobForPreview to go ahead and set all of our settings
     * however, we want to use a temporary destination field of course
     * so that we do not put our temp preview in the users chosen
     * directory */
    
    hb_job_t * job = fTitle->job;
    
    /* We run our current setting through prepeareJob in Controller.mm
     * just as if it were a regular encode */
    
    [fHBController prepareJobForPreview];
    
    /* Make sure we have a Preview sub directory with our pidnum attached */
    NSString *PreviewDirectory = [NSString stringWithFormat:@"~/Library/Application Support/HandBrake/Previews/%d", [fHBController getPidnum]];
    PreviewDirectory = [PreviewDirectory stringByExpandingTildeInPath];
    if( ![[NSFileManager defaultManager] fileExistsAtPath:PreviewDirectory] )
    {
        [[NSFileManager defaultManager] createDirectoryAtPath:PreviewDirectory 
                                  withIntermediateDirectories:NO 
                                                   attributes:nil 
                                                        error:nil];
    }
    /* Destination file. We set this to our preview directory
     * changing the extension appropriately.*/
    if (fTitle->job->mux == HB_MUX_MP4) // MP4 file
    {
        /* we use .m4v for our mp4 files so that ac3 and chapters in mp4 will play properly */
        fPreviewMoviePath = [PreviewDirectory stringByAppendingString:@"/preview_temp.m4v"];
    }
    else if (fTitle->job->mux == HB_MUX_MKV) // MKV file
    {
        fPreviewMoviePath = [PreviewDirectory stringByAppendingString:@"/preview_temp.mkv"];
    }
    
    fPreviewMoviePath = [[fPreviewMoviePath stringByExpandingTildeInPath]retain];
    
    /* See if there is an existing preview file, if so, delete it */
    if( ![[NSFileManager defaultManager] fileExistsAtPath:fPreviewMoviePath] )
    {
        [[NSFileManager defaultManager] removeItemAtPath:fPreviewMoviePath error:nil];
    }
    
    /* We now direct our preview encode to fPreviewMoviePath */
    fTitle->job->file = [fPreviewMoviePath UTF8String];
    
    /* We use our advance pref to determine how many previews to scan */
    int hb_num_previews = [[[NSUserDefaults standardUserDefaults] objectForKey:@"PreviewsNumber"] intValue];
    job->start_at_preview = fPicture + 1;
    job->seek_points = hb_num_previews;
    
    /* we use the preview duration popup to get the specified
     * number of seconds for the preview encode.
     */
    
    job->pts_to_stop = [[fPreviewMovieLengthPopUp titleOfSelectedItem] intValue] * 90000LL;
    
    /* lets go ahead and send it off to libhb
     * Note: unlike a full encode, we only send 1 pass regardless if the final encode calls for 2 passes.
     * this should suffice for a fairly accurate short preview and cuts our preview generation time in half.
     * However we also need to take into account the indepth scan for subtitles.
     */
    /*
     * If scanning we need to do some extra setup of the job.
     */
    if( job->indepth_scan == 1 )
    {
        char *x264opts_tmp;
        
        /*
         * When subtitle scan is enabled do a fast pre-scan job
         * which will determine which subtitles to enable, if any.
         */
        job->pass = -1;
        x264opts_tmp = job->advanced_opts;
        
        job->advanced_opts = NULL;
        job->indepth_scan = 1;  
        /*
         * Add the pre-scan job
         */
        hb_add( fPreviewLibhb, job );
        job->advanced_opts = x264opts_tmp;
    }                  
    /* Go ahead and perform the actual encoding preview scan */
    job->indepth_scan = 0;
    job->pass = 0;
    hb_add( fPreviewLibhb, job );

    [fEncodingControlBox setHidden: NO];
    [fPictureControlBox setHidden: YES];
    
    [fMovieCreationProgressIndicator setHidden: NO];
    [fPreviewMovieStatusField setHidden: NO];
    
    isEncoding = YES;

    /* Let fPreviewLibhb do the job */
    hb_start( fPreviewLibhb );
	
}

- (void) startReceivingLibhbNotifications
{
    if (!fLibhbTimer)
    {
        fLibhbTimer = [NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(libhbTimerFired:) userInfo:nil repeats:YES];
        [fLibhbTimer retain];
    }
}

- (void) stopReceivingLibhbNotifications
{
    if (fLibhbTimer)
    {
        [fLibhbTimer invalidate];
        [fLibhbTimer release];
        fLibhbTimer = nil;
    }
}
- (void) libhbTimerFired: (NSTimer*)theTimer
{
    hb_state_t s;
    hb_get_state( fPreviewLibhb, &s );
    [self libhbStateChanged: s];
    
}

- (void) libhbStateChanged: (hb_state_t)state
{
    switch( state.state )
    {
        case HB_STATE_IDLE:
        case HB_STATE_SCANNING:
        case HB_STATE_SCANDONE:
            break;
            
        case HB_STATE_WORKING:
        {
#define p state.param.working
            
            NSMutableString * string;
			/* Update text field */
			string = [NSMutableString stringWithFormat: NSLocalizedString( @"Encoding preview:  %.2f %%", @"" ), 100.0 * p.progress];
            
			if( p.seconds > -1 )
            {
                [string appendFormat:
                 NSLocalizedString( @" (%.2f fps, avg %.2f fps, ETA %02dh%02dm%02ds)", @"" ),
                 p.rate_cur, p.rate_avg, p.hours, p.minutes, p.seconds];
            }
            [fPreviewMovieStatusField setStringValue: string];
            
            [fMovieCreationProgressIndicator setIndeterminate: NO];
            /* Update slider */
			[fMovieCreationProgressIndicator setDoubleValue: 100.0 * p.progress];
            
            [fCreatePreviewMovieButton setTitle: @"Cancel Preview"];
            
            break;
            
        }
#undef p
            
#define p state.param.muxing            
        case HB_STATE_MUXING:
        {
            // Update fMovieCreationProgressIndicator
            [fMovieCreationProgressIndicator setIndeterminate: YES];
            [fMovieCreationProgressIndicator startAnimation: nil];
            [fPreviewMovieStatusField setStringValue: [NSString stringWithFormat:
                                         NSLocalizedString( @"Muxing Preview ...", @"" )]];
            break;
        }
#undef p			
        case HB_STATE_PAUSED:
            [fMovieCreationProgressIndicator stopAnimation: nil];
            break;
			
        case HB_STATE_WORKDONE:
        {
            // Delete all remaining jobs since libhb doesn't do this on its own.
            hb_job_t * job;
            while( ( job = hb_job(fPreviewLibhb, 0) ) )
                hb_rem( fHandle, job );
            
            [fPreviewMovieStatusField setStringValue: @""];
            [fPreviewMovieStatusField setHidden: YES];
            
            [fMovieCreationProgressIndicator stopAnimation: nil];
            [fMovieCreationProgressIndicator setHidden: YES];
            [fEncodingControlBox setHidden: YES];
            [fPictureControlBox setHidden: YES];
            isEncoding = NO;

            // Show the movie view
            [self showMoviePreview:fPreviewMoviePath];
            [fCreatePreviewMovieButton setTitle: @"Live Preview"];

            break;
        }
    }
}

- (IBAction) toggleMoviePreviewPlayPause: (id) sender
{
    /* make sure a movie is even loaded up */
    if (aMovie != nil)
    {
        /* For some stupid reason there is no "isPlaying" method for a QTMovie
         * object, given that, we detect the rate to determine whether the movie
         * is playing or not.
         */
        if ([aMovie rate] != 0) // we are playing 
        {
            [fMovieView pause:aMovie];
            [fPlayPauseButton setTitle: @">"];
        }
        else // we are paused or stopped
        {
            [fMovieView play:aMovie];
            [fPlayPauseButton setTitle: @"||"];   
        }
    }
    
}

- (IBAction) moviePlaybackGoToBeginning: (id) sender
{
    /* make sure a movie is even loaded up */
    if (aMovie != nil)
    {
        [fMovieView gotoBeginning:aMovie];
     }
    
}

- (IBAction) moviePlaybackGoToEnd: (id) sender
{
    /* make sure a movie is even loaded up */
    if (aMovie != nil)
    {
        [fMovieView gotoEnd:aMovie];
     }
    
}

- (IBAction) moviePlaybackGoBackwardOneFrame: (id) sender
{
    /* make sure a movie is even loaded up */
    if (aMovie != nil)
    {
        [fMovieView pause:aMovie]; // Pause the movie
        [fMovieView stepBackward:aMovie];
     }
    
}

- (IBAction) moviePlaybackGoForwardOneFrame: (id) sender
{
    /* make sure a movie is even loaded up */
    if (aMovie != nil)
    {
        [fMovieView pause:aMovie]; // Pause the movie
        [fMovieView stepForward:aMovie];
     }
    
}


- (void) startMovieTimer
{
	if( fMovieTimer ) {
		[fMovieTimer invalidate];
		[fMovieTimer release];
	}
    fMovieTimer = [NSTimer scheduledTimerWithTimeInterval:0.10 target:self selector:@selector(movieTimerFired:) userInfo:nil repeats:YES];
    [fMovieTimer retain];
}

- (void) stopMovieTimer
{
    if( fMovieTimer )
    {
        [fMovieTimer invalidate];
        [fMovieTimer release];
        fMovieTimer = nil;
    }
}

- (void) movieTimerFired: (NSTimer*)theTimer
{
     if (aMovie != nil)
    {
        [self adjustPreviewScrubberForCurrentMovieTime];
        [fMovieInfoField setStringValue: [NSString stringWithFormat:NSLocalizedString( @"%@", @"" ),[self calculatePlaybackSMTPETimecodeForDisplay]]];    
    }
}



- (IBAction) showMoviePreview: (NSString *) path
{
    /* Since the gray background for the still images is part of
     * fPictureView, lets leave the picture view visible and postion
     * the fMovieView over the image portion of fPictureView so
     * we retain the gray cropping border  we have already established
     * with the still previews
     */
    
    /* Load the new movie into fMovieView */
    if (path) 
    {
		//QTMovie * aMovie;
		NSError	 *outError;
		NSURL *movieUrl = [NSURL fileURLWithPath:path];
		NSDictionary *movieAttributes = [NSDictionary dictionaryWithObjectsAndKeys:
										 movieUrl, QTMovieURLAttribute,
										 [NSNumber numberWithBool:NO], QTMovieAskUnresolvedDataRefsAttribute,
										 [NSNumber numberWithBool:YES], @"QTMovieOpenForPlaybackAttribute",
										 [NSNumber numberWithBool:NO], @"QTMovieOpenAsyncRequiredAttribute",								
										 [NSNumber numberWithBool:NO], @"QTMovieOpenAsyncOKAttribute",
                                         [NSNumber numberWithBool:YES], @"QTMovieIsSteppableAttribute",
										 QTMovieApertureModeClean, QTMovieApertureModeAttribute,
										 nil];
        
        aMovie = [[[QTMovie alloc] initWithAttributes:movieAttributes error:&outError] autorelease];
        
        
		if (!aMovie) 
        {
			NSLog(@"Unable to open movie");
		}
        else 
        {
            NSRect movieBounds;
            /* we get some size information from the preview movie */
            NSSize movieSize= [[aMovie attributeForKey:QTMovieNaturalSizeAttribute] sizeValue];
            movieBounds = [fMovieView movieBounds];
            movieBounds.size.height = movieSize.height;
            /* We also get our view size to use for scaling fMovieView's size */
            NSSize scaledMovieViewSize = [fPictureView frame].size;
            [fMovieView setControllerVisible:FALSE];
            if ([fMovieView isControllerVisible]) 
            {
                CGFloat controllerBarHeight = [fMovieView controllerBarHeight];
                if ( controllerBarHeight != 0 ) //Check if QTKit return a real value or not.
                {
                    movieBounds.size.height += controllerBarHeight;
                    scaledMovieViewSize.height += controllerBarHeight;
                }
                else
                {
                    movieBounds.size.height += 15;
                    scaledMovieViewSize.height += 15;
                }
            }
            
            movieBounds.size.width = movieSize.width;
            
            /* we need to account for an issue where the scaledMovieViewSize > the window size */
            if (scaledMovieViewSize.height > [[self window] frame].size.height)
            {
                [fHBController writeToActivityLog: "showMoviePreview: Our window is not tall enough to show the controller bar ..."];
            }
            
            
            
            /* Scale the fMovieView to scaledMovieViewSize */
            [fMovieView setFrameSize:scaledMovieViewSize];
            
            /*set our origin try using fPictureViewArea or fPictureView */
            NSPoint origin = [fPictureView frame].origin;
            origin.x += trunc( ( [fPictureView frame].size.width -
                                [fMovieView frame].size.width ) / 2.0 );
            origin.y += trunc( ( ( [fPictureView frame].size.height -
                                      [fMovieView frame].size.height ) / 2.0 ) - 7.5 );

            [fMovieView setFrameOrigin:origin];
            [fMovieView setMovie:aMovie];
            [fMovieView setHidden:NO];
            [fMoviePlaybackControlBox setHidden: NO];
            [fPictureControlBox setHidden: YES];
            
            // get and enable subtitles
            NSArray *subtitlesArray;
            subtitlesArray = [aMovie tracksOfMediaType: @"sbtl"];
            if( subtitlesArray && [subtitlesArray count] )
            {
                // enable the first TX3G subtitle track
                [[subtitlesArray objectAtIndex: 0] setEnabled: YES];
            }
            else
            {
                // Perian subtitles
                subtitlesArray = [aMovie tracksOfMediaType: QTMediaTypeVideo];
                if( subtitlesArray && ( [subtitlesArray count] >= 2 ) )
                {
                    // track 0 should be video, other video tracks should
                    // be subtitles; force-enable the first subs track
                    [[subtitlesArray objectAtIndex: 1] setEnabled: YES];
                }
            }
            
            // to actually play the movie
            
            [self initPreviewScrubberForMovie];
            [self startMovieTimer];
            /* Install amovie notifications */
            [aMovie setDelegate:self];
            [self installMovieCallbacks];
            [fMovieView play:aMovie];

        }
    }
    isEncoding = NO;
}
#pragma mark *** Movie Playback Scrubber and time code methods ***

/* Since MacOSX Leopard QTKit has taken over some responsibility for assessing movie playback
 * information from the old QuickTime carbon api ( time code information as well as fps, etc.).
 * However, the QTKit devs at apple were not really big on documentation and further ...
 * QuickTimes ability to playback HB's largely variable framerate output makes perfectly frame
 * accurate information at best convoluted. Still, for the purpose of a custom hud based custom
 * playback scrubber slider this has so far proven to be as accurate as I have found. To say it
 * could use some better accuracy is not understating it enough probably.
 * Most of this was gleaned from this obscure Apple Mail list thread:
 * http://www.mailinglistarchive.com/quicktime-api@lists.apple.com/msg05642.html
 * Now as we currently do not show a QTKit control bar with scrubber for display sizes > container
 * size, this seems to facilitate playback control from the HB custom HUD controller fairly close
 * to the built in controller bar.
 * Further work needs to be done to try to get accurate frame by frame playback display if we want it.
 * Note that the keyboard commands for frame by frame step through etc. work as always.
 */ 

// Returns a human readable string from the currentTime of movie playback
- (NSString*) calculatePlaybackSMTPETimecodeForDisplay
{
    QTTime time = [aMovie currentTime];
    
    NSString *smtpeTimeCodeString;
    int days, hour, minute, second, frame;
    long long result;
    
    result = time.timeValue / time.timeScale; // second
    frame = (time.timeValue % time.timeScale) / 100;
    
    second = result % 60;
    
    result = result / 60; // minute
    minute = result % 60;
    
    result = result / 60; // hour
    hour = result % 24;	 
    days = result;
    
    smtpeTimeCodeString = [NSString stringWithFormat:@"Time: %02d:%02d:%02d", hour, minute, second]; // hh:mm:ss
    return smtpeTimeCodeString;
    
}


// Initialize the preview scrubber min/max to appropriate values for the current movie
-(void) initPreviewScrubberForMovie
{
    if (aMovie)
    {
        
        QTTime duration = [aMovie duration];
        float result = duration.timeValue / duration.timeScale;
        
        [fMovieScrubberSlider setMinValue:0.0];
        [fMovieScrubberSlider setMaxValue: (float)result];
        [fMovieScrubberSlider setFloatValue: 0.0];
    }
}


-(void) adjustPreviewScrubberForCurrentMovieTime
{
    if (aMovie)
    {
        QTTime time = [aMovie currentTime];
        
        float result = (float)time.timeValue / (float)time.timeScale;;
        [fMovieScrubberSlider setFloatValue:result];
    }
}

- (IBAction) previewScrubberChanged: (id) sender
{
    if (aMovie)
    {
        [fMovieView pause:aMovie]; // Pause the movie
        QTTime time = [aMovie currentTime];
        [self setTime: time.timeScale * [fMovieScrubberSlider floatValue]];
        [self calculatePlaybackSMTPETimecodeForDisplay];
    }
}
#pragma mark *** Movie Notifications ***

- (void) installMovieCallbacks
{


/*Notification for any time the movie rate changes */
        [[NSNotificationCenter defaultCenter] addObserver:self
                                                 selector:@selector(movieRateDidChange:)
                                                     name:@"QTMovieRateDidChangeNotification"
                                                   object:aMovie];
        /*Notification for when the movie ends */
        [[NSNotificationCenter defaultCenter] addObserver:self
                                                 selector:@selector(movieDidEnd:)
                                                     name:@"QTMovieDidEndNotification"
                                                   object:aMovie];
}

- (void)removeMovieCallbacks
{
    if (aMovie)
    {
        /*Notification for any time the movie rate changes */
        [[NSNotificationCenter defaultCenter] removeObserver:self
                                                        name:@"QTMovieRateDidChangeNotification"
                                                      object:aMovie];
        /*Notification for when the movie ends */
        [[NSNotificationCenter defaultCenter] removeObserver:self
                                                        name:@"QTMovieDidEndNotification"
                                                      object:aMovie];
    }
}

- (void)movieRateDidChange:(NSNotification *)notification
{
    if (aMovie != nil)
    {
        /* For some stupid reason there is no "isPlaying" method for a QTMovie
         * object, given that, we detect the rate to determine whether the movie
         * is playing or not.
         */
        //[self adjustPreviewScrubberForCurrentMovieTime];
        if ([aMovie rate] != 0) // we are playing 
        {
            [fPlayPauseButton setTitle: @"||"];
        }
        else // we are paused or stopped
        {
            [fPlayPauseButton setTitle: @">"];
        }
    }
}
/* This notification is not currently used. However we should keep it "just in case" as
 * live preview playback is enhanced.
 */
- (void)movieDidEnd:(NSNotification *)notification
{

    //[fHBController writeToActivityLog: "Movie DidEnd Notification Received"];
}


#pragma mark *** QTTime Utilities ***

	// convert a time value (long) to a QTTime structure
-(void)timeToQTTime:(long)timeValue resultTime:(QTTime *)aQTTime
{
	NSNumber *timeScaleObj;
	long timeScaleValue;

	timeScaleObj = [aMovie attributeForKey:QTMovieTimeScaleAttribute];
	timeScaleValue = [timeScaleObj longValue];

	*aQTTime = QTMakeTime(timeValue, timeScaleValue);
}

	// set the movie's current time
-(void)setTime:(int)timeValue
{
	QTTime movieQTTime;
	NSValue *valueForQTTime;
	
	[self timeToQTTime:timeValue resultTime:&movieQTTime];

	valueForQTTime = [NSValue valueWithQTTime:movieQTTime];

	[aMovie setAttribute:valueForQTTime forKey:QTMovieCurrentTimeAttribute];
}


@end

@implementation PreviewController (Private)

//
// -[PictureController(Private) optimalViewSizeForImageSize:]
//
// Given the size of the preview image to be shown, returns the best possible
// size for the view.
//
- (NSSize)optimalViewSizeForImageSize: (NSSize)imageSize
{
    // The min size is 480x360
    CGFloat minWidth = 480.0;
    CGFloat minHeight = 360.0;

    NSSize screenSize = [[[self window] screen] visibleFrame].size;
    NSSize sheetSize = [[self window] frame].size;
    NSSize viewAreaSize = [fPictureViewArea frame].size;
    CGFloat paddingX = 0.00;
    CGFloat paddingY = 0.00;
    
    if (fTitle->width > screenSize.width || fTitle->height > screenSize.height)
    {
        if (scaleToScreen == YES)
        {
            paddingX = screenSize.width - imageSize.width;
            paddingY = screenSize.height - imageSize.height;
        }
        
        else
        {
            paddingX = sheetSize.width - viewAreaSize.width;
            paddingY = sheetSize.height - viewAreaSize.height;  
        }

    }
    
    CGFloat maxWidth;
    CGFloat maxHeight;
    maxWidth =  screenSize.width - paddingX;
    maxHeight = screenSize.height - paddingY;
    
    NSSize resultSize = imageSize;
    CGFloat resultPar = resultSize.width / resultSize.height;

    //note, a mbp 15" at 1440 x 900 is a 1.6 ar
    CGFloat screenAspect = screenSize.width / screenSize.height;
    // Note, a standard dvd will use 720 x 480 which is a 1.5
    CGFloat viewAreaAspect = viewAreaSize.width / viewAreaSize.height;
    
    if (scaleToScreen == YES)
    {
        
        if (screenAspect < viewAreaAspect)
        {
            resultSize.width = screenSize.width;
            resultSize.height = (screenSize.width / viewAreaAspect);
        }
        else
        {
            resultSize.height = screenSize.height;
            resultSize.width = resultSize.height * viewAreaAspect;
        }
        
    }
    else if ( resultSize.width > maxWidth || resultSize.height > maxHeight )
    {
    	// Source is larger than screen in one or more dimensions
        if ( resultPar > screenAspect )
        {
            // Source aspect wider than screen aspect, snap to max width and vary height
            resultSize.width = maxWidth;
            resultSize.height = (maxWidth / resultPar);
        }
        else
        {
            // Source aspect narrower than screen aspect, snap to max height vary width
            resultSize.height = maxHeight;
            resultSize.width = (maxHeight * resultPar);
        }
    }

    // If necessary, grow to minimum dimensions to ensure controls overlay is not obstructed
    if ( resultSize.width < minWidth )
    {
        resultSize.width = minWidth;
    }
    if ( resultSize.height < minHeight )
    {
        resultSize.height = minHeight;
    }
    
    return resultSize;

    
}

//
// -[PictureController(Private) resizePanelForViewSize:animate:]
//
// Resizes the entire window to accomodate a view of a particular size.
//
- (void)resizeSheetForViewSize: (NSSize)viewSize
{
    // Figure out the deltas for the new frame area
    NSSize currentSize = [fPictureViewArea frame].size;
    CGFloat deltaX = viewSize.width - currentSize.width;
    CGFloat deltaY = viewSize.height - currentSize.height;
    
    // Now resize the whole panel by those same deltas, but don't exceed the min
    NSRect frame = [[self window] frame];
    NSSize maxSize = [[[self window] screen] visibleFrame].size;
    /* if we are not Scale To Screen, put an 85% of visible screen on the window */
    if (scaleToScreen == NO )
    {
        maxSize.width = maxSize.width * 0.85;
        maxSize.height = maxSize.height * 0.85;
    }
    
    /* Set our min size to the storage size */
    NSSize minSize;
    minSize.width = fTitle->width;
    minSize.height = fTitle->height;
    
    frame.size.width += deltaX;
    frame.size.height += deltaY;
    if( frame.size.width < minSize.width )
    {
        frame.size.width = minSize.width;
    }
    
    if( frame.size.height < minSize.height )
    {
        frame.size.height = minSize.height;
    }
    /* compare frame to max size of screen */
    
    if( frame.size.width > maxSize.width )
    {
        frame.size.width = maxSize.width;
    }
    
    if( frame.size.height > maxSize.height )
    {
        frame.size.height = maxSize.height;
    }
    
    
    

    
    // But now the sheet is off-center, so also shift the origin to center it and
    // keep the top aligned.
    if( frame.size.width != [[self window] frame].size.width )
        frame.origin.x -= (deltaX / 2.0);
    
        
        /* Since upon launch we can open up the preview window if it was open
         * the last time we quit (and at the size it was) we want to make
         * sure that upon resize we do not have the window off the screen
         * So check the origin against the screen origin and adjust if
         * necessary.
         */
        NSSize screenSize = [[[self window] screen] visibleFrame].size;
        NSPoint screenOrigin = [[[self window] screen] frame].origin;
        if (screenSize.height < frame.size.height)
        {
            frame.size.height = screenSize.height;
        }
        if (screenSize.width < frame.size.width)
        {
            frame.size.width = screenSize.width;
        }
        
        
        /* our origin is off the screen to the left*/
        if (frame.origin.x < screenOrigin.x)
        {
            /* so shift our origin to the right */
            frame.origin.x = screenOrigin.x;
        }
        else if ((frame.origin.x + frame.size.width) > (screenOrigin.x + screenSize.width))
        {
            /* the right side of the preview is off the screen, so shift to the left */
            frame.origin.x = (screenOrigin.x + screenSize.width) - frame.size.width;
        }
        
        [[self window] setFrame:frame display:YES animate:YES];
    
    
}

//
// -[PictureController(Private) setViewSize:]
//
// Changes the view's size and centers it vertically inside of its area.
// Assumes resizeSheetForViewSize: has already been called.
//
- (void)setViewSize: (NSSize)viewSize
{   
    
    /* special case for scaleToScreen */
    NSSize areaSize = [fPictureViewArea frame].size;
    CGFloat viewSizeAspect = viewSize.width / viewSize.height;
    
    if (viewSize.width > areaSize.width || viewSize.height > areaSize.height)
    {
        
        if (viewSizeAspect > 1.0) // we are wider than taller, so expand the width to fill the area and scale the height
        {
            viewSize.width = areaSize.width;
            viewSize.height = viewSize.width / viewSizeAspect;
        }
        else
        {
            viewSize.height = areaSize.height;
            viewSize.width = viewSize.height * viewSizeAspect;
        }
        
    }
    
    [fPictureView setFrameSize:viewSize];
    
    
    // center it vertically and horizontally
    NSPoint origin = [fPictureViewArea frame].origin;
    origin.y += ([fPictureViewArea frame].size.height -
                 [fPictureView frame].size.height) / 2.0;
    
    origin.x += ([fPictureViewArea frame].size.width -
                 [fPictureView frame].size.width) / 2.0; 

    origin.x = floor( origin.x );
    origin.y = floor( origin.y );
    
    [fPictureView setFrameOrigin:origin];
    
}


- (BOOL)viewNeedsToResizeToSize: (NSSize)newSize
{
    NSSize viewSize = [fPictureViewArea frame].size;
    return (newSize.width != viewSize.width || newSize.height != viewSize.height);
}

@end