-
-
Notifications
You must be signed in to change notification settings - Fork 2
/
main.pas
6255 lines (5659 loc) · 207 KB
/
main.pas
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
unit main;
(*******************************************************************************
Application: PDFTK Builder
Description: A graphical user interface to the Windows version of PDFtk
Module: Main
Version: 5.0.0
Date: 18 Oct 2020
Target Platform: Windows 32-bit
Author: Sven Harazim
Credits: David King (PDFtk Builder Enhanced 4.1.5)
Angus Johnson (PDFtk Builder 2.05-3.10.0)
Copyright: © 2020, Sven Harazim
© 2018-2019, David King
© 2005-2018, Angus Johnson
http://www.angusj.com/pdftkb/
License: GNU GPL ver 3 (See http://www.gnu.org/copyleft/gpl.html)
Dependencies: PDFtk Server (pdftk.exe) must be installed to run program.
See https://www.pdflabs.com/tools/pdftk-server/
To use pdftk.exe versions earlier than 2.00, set
PdftkVersion in the .ini file to the version number.
PDF reader must be available to use 'View' buttons.
*******************************************************************************)
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, IniFiles, ShlObj, ShellApi, ActiveX, ComCtrls, Grids, Menus, StrUtils,
AnsiStrings, ExtCtrls, IOUtils, FileCtrl, ClipBrd, zlib, Buttons,
gnugettext;
type
TMainForm = class(TForm)
MainMenu1: TMainMenu;
File1: TMenuItem;
Close1: TMenuItem;
Help1: TMenuItem;
Contents1: TMenuItem;
Guide1: TMenuItem;
PDFtk1: TMenuItem;
OpenIni1: TMenuItem;
About1: TMenuItem;
StatusBar1: TStatusBar;
PageControl1: TPageControl;
OpenDialog1: TOpenDialog;
OpenDialog2: TOpenDialog;
SaveDialog1: TSaveDialog;
tsCollate: TTabSheet;
lblSelected: TLabel;
btnGridMode: TButton;
lblMode: TLabel;
cbShuffle: TCheckBox;
btnResetAll: TButton;
btnResetCollate: TButton;
lblSourcePDFDocs: TLabel;
StringGrid1: TStringGrid;
lFilename: TLabel;
btnRepairPageCount: TButton;
lPages: TLabel;
ePages: TEdit;
bAdd: TButton;
bDelete: TButton;
btnSort: TButton;
bMoveUp: TButton;
bMoveDown: TButton;
bView: TButton;
PopupMenu1: TPopupMenu;
popView: TMenuItem;
popLocate: TMenuItem;
popCopyPath: TMenuItem;
N1: TMenuItem;
popExtract: TMenuItem;
N3: TMenuItem;
popSplit: TMenuItem;
popMark: TMenuItem;
popRotate: TMenuItem;
popTools: TMenuItem;
N2: TMenuItem;
popProperties: TMenuItem;
tsSplit: TTabSheet;
lblSelectedSplit: TLabel;
cbSrcSplit: TCheckBox;
btnSrcSplit: TButton;
btnSplitView: TButton;
btnSplitReset: TButton;
btnCopySrcSplitFrom: TButton;
btnCopySrcSplitTo: TButton;
LblSrcSplitFilename: TLabel;
lblSplitPagesFrom: TLabel;
eSplitPagesFrom: TEdit;
lblSplitPagesTo: TLabel;
eSplitPagesTo: TEdit;
lblSplitChunkSize: TLabel;
eSplitChunkSize: TEdit;
btnSplitFolder: TButton;
lblSplitFolder: TLabel;
btnSplitViewFolder: TButton;
cbSplitOddEven: TCheckBox;
tsBackground: TTabSheet;
lblSelectedBackground: TLabel;
cbSrcBackground: TCheckBox;
btnSrcBackground: TButton;
btnBackgroundView: TButton;
btnBackgroundReset: TButton;
btnCopySrcBackgroundTo: TButton;
btnCopySrcBackgroundFrom: TButton;
lblSource_background_filename: TLabel;
btnBackground: TButton;
btnBackgroundViewStamp: TButton;
btnBackgroundResetStamp: TButton;
lblBackgroundFilename: TLabel;
btnCopyBackgroundFrom: TButton;
btnCopyBackgroundTo: TButton;
GroupBox1: TGroupBox;
rbBackground: TRadioButton;
rbStamp: TRadioButton;
rbPageNumber: TRadioButton;
cbPageOneOnly: TCheckBox;
comboPageNumber: TComboBox;
cbMirror: TCheckBox;
eNumPagesFrom: TEdit;
eNumPagesTo: TEdit;
eNumStart: TEdit;
eNumPrefix: TEdit;
lblNumOptions: TLabel;
lblNumTo: TLabel;
btnNumOptions: TSpeedButton;
btnNumPortrait: TSpeedButton;
lblNumHint: TLabel;
tsRotate: TTabSheet;
lblSelectedRotate: TLabel;
cbSrcRotate: TCheckBox;
btnSrcRotate: TButton;
btnRotateView: TButton;
btnRotateReset: TButton;
btnCopySrcRotateTo: TButton;
btnCopySrcRotateFrom: TButton;
lblSrcRotateFilename: TLabel;
lblRotatePages: TLabel;
eRotPages: TEdit;
lblRotatePagesFrom: TLabel;
eRotPagesFrom: TEdit;
lblRotatePagesTo: TLabel;
eRotPagesTo: TEdit;
GroupBox2: TGroupBox;
rbRotLeft: TRadioButton;
rbRotRight: TRadioButton;
rbRot180: TRadioButton;
rbRotExtract: TRadioButton;
rbRotDelete: TRadioButton;
tsTools: TTabSheet;
lblSelectedTools: TLabel;
cbSrcTools: TCheckBox;
btnSrcTools: TButton;
btnToolsReset: TButton;
btnToolsView: TButton;
btnCopySrcToolsTo: TButton;
btnCopySrcToolsFrom: TButton;
lblSrcToolsFilename: TLabel;
GroupBox3: TGroupBox;
rbTools1: TRadioButton;
rbTools2: TRadioButton;
rbTools3: TRadioButton;
rbTools4: TRadioButton;
btnRbTools: TButton;
btnRbTools2: TButton;
lblToolsSet: TLabel;
btnToolsFile2: TButton;
btnToolsFile2Reset: TButton;
btnToolsFile2Open: TButton;
lblToolsFile2Filename: TLabel;
btnCopyFile2To: TButton;
btnCopyFile2From: TButton;
btnSwapFiles: TButton;
eDecryptPassword: TEdit;
lblDecryptPassword: TLabel;
comboApplication: TComboBox;
btnLaunchApp: TButton;
lblApplication: TLabel;
eAdvanced: TEdit;
btnAdvancedReset: TButton;
btnAdvancedFilter: TButton;
btnAdvancedTemplate: TButton;
lblAdvancedHint: TLabel;
btnDocProtect: TSpeedButton;
pnlProtection: TPanel;
gbPasswords: TGroupBox;
lblOwnerPassword: TLabel;
eOwnerPassword: TEdit;
lblUserPassword: TLabel;
eUserPassword: TEdit;
gbDocProtect: TGroupBox;
cbAllowAll: TCheckBox;
cbPrinting: TCheckBox;
cbDegradedPrinting: TCheckBox;
cbModifyContents: TCheckBox;
cbScreenReaders: TCheckBox;
cbModifyAnnotations: TCheckBox;
cbFillIn: TCheckBox;
cbAssembly: TCheckBox;
cbCopyContents: TCheckBox;
gbExit: TGroupBox;
btnBuild: TButton;
bViewSave: TButton;
bLocate: TButton;
bPipe: TButton;
bClose: TButton;
lblSaveFilename: TLabel;
lblSplitChunkSizePages: TLabel;
procedure FormCreate(Sender: TObject);
procedure FormActivate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure FormKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
procedure About1Click(Sender: TObject);
procedure Contents1Click(Sender: TObject);
procedure OpenIniClick(Sender: TObject);
procedure ViewGuideClick(Sender: TObject);
procedure ViewPDFtkClick(Sender: TObject);
procedure PageControl1Change(Sender: TObject);
procedure btnGridModeClick(Sender: TObject);
procedure cbShuffleClick(Sender: TObject);
procedure btnResetAllClick(Sender: TObject);
procedure btnResetCollateClick(Sender: TObject);
procedure StringGrid1Click(Sender: TObject);
procedure tsCollateResize(Sender: TObject);
procedure ePagesChange(Sender: TObject);
procedure bAddClick(Sender: TObject);
procedure bDeleteClick(Sender: TObject);
procedure btnSortClick(Sender: TObject);
procedure bMoveUpClick(Sender: TObject);
procedure bMoveDownClick(Sender: TObject);
procedure bViewClick(Sender: TObject);
procedure popLocateClick(Sender: Tobject);
procedure popCopyPathClick(Sender: TObject);
procedure popExtractClick(Sender: TObject);
procedure popSplitClick(Sender: Tobject);
procedure popMarkClick(Sender: Tobject);
procedure popRotateClick(Sender: Tobject);
procedure popToolsClick(Sender: Tobject);
procedure popPropertiesClick(Sender: TObject);
procedure cbSrcSplitClick(Sender: TObject);
procedure btnSrcSplitClick(Sender: TObject);
procedure btnSplitViewClick(Sender: TObject);
procedure btnSplitResetClick(Sender: TObject);
procedure eSplitPagesFromChange(Sender: TObject);
procedure eSplitPagesToChange(Sender: TObject);
procedure cbSplitOddEvenClick(Sender: TObject);
procedure eSplitChunkSizeChange(Sender: TObject);
procedure btnSplitFolderClick(Sender: TObject);
procedure btnSplitViewFolderClick(Sender: TObject);
procedure cbSrcBackgroundClick(Sender: TObject);
procedure btnSrcBackgroundClick(Sender: TObject);
procedure btnBackgroundClick(Sender: TObject);
procedure btnBackgroundViewClick(Sender: TObject);
procedure btnBackgroundViewStampClick(Sender: TObject);
procedure btnBackgroundResetClick(Sender: TObject);
procedure btnBackgroundResetStampClick(Sender: TObject);
procedure btnCopySrcBackgroundFromClick(Sender: TObject);
procedure btnCopySrcBackgroundToClick(Sender: TObject);
procedure btnCopyBackgroundFromClick(Sender: TObject);
procedure btnCopyBackgroundToClick(Sender: TObject);
procedure rbPageNumberClick(Sender: TObject);
procedure comboPageNumberChange(Sender: TObject);
procedure btnNumPortraitClick(Sender: TObject);
procedure btnNumOptionsClick(Sender: TObject);
procedure eNumPagesFromChange(Sender: TObject);
procedure eNumPagesToChange(Sender: TObject);
procedure eNumStartChange(Sender: TObject);
procedure cbSrcRotateClick(Sender: TObject);
procedure btnSrcRotateClick(Sender: TObject);
procedure btnRotateViewClick(Sender: TObject);
procedure btnRotateResetClick(Sender: TObject);
procedure eRotPagesChange(Sender: TObject);
procedure eRotPagesFromChange(Sender: TObject);
procedure eRotPagesToChange(Sender: TObject);
procedure rbRotRightClick(Sender: TObject);
procedure rbRotLeftClick(Sender: TObject);
procedure rbRotateDownClick(Sender: TObject);
procedure rbRotExtractClick(Sender: TObject);
procedure rbRotDeleteClick(Sender: TObject);
procedure cbSrcToolsClick(Sender: TObject);
procedure btnSrcToolsClick(Sender: TObject);
procedure btnToolsResetClick(Sender: TObject);
procedure btnToolsViewClick(Sender: TObject);
procedure btnToolsFile2Click(Sender: TObject);
procedure btnToolsFile2OpenClick(Sender: TObject);
procedure btnToolsFile2ResetClick(Sender: TObject);
procedure btnCopyFile2ToClick(Sender: TObject);
procedure btnCopyFile2FromClick(Sender: TObject);
procedure btnSwapFilesClick(Sender: TObject);
procedure btnRepairPageCountClick(Sender: TObject);
procedure btnLaunchAppClick(Sender: TObject);
procedure rbTools4Click(Sender: TObject);
procedure btnRbToolsClick(Sender: TObject);
procedure btnRbTools2Click(Sender: TObject);
procedure comboApplicationClick(Sender: TObject);
procedure btnAdvancedTemplateClick(Sender: TObject);
procedure btnAdvancedFilterClick(Sender: TObject);
procedure btnAdvancedResetClick(Sender: TObject);
procedure gbDocProtectClick(Sender: TObject);
procedure cbAllowAllClick(Sender: TObject);
procedure cbPrintingClick(Sender: TObject);
procedure btnBuildClick(Sender: TObject);
procedure bViewSaveClick(Sender: TObject);
procedure bLocateClick(Sender: TObject);
procedure bPipeClick(Sender: TObject);
procedure bCloseClick(Sender: TObject);
private
fFileList: TStringList;
fDropFile: string;
fErrorCode: string;
fExtract : boolean;
fAltShift : boolean;
fPaste : boolean;
fPipe : boolean;
fPipeFullpath : string;
fPrevPage : string;
fSplitSrc : string;
fSplitSrcPageCount : integer;
fSplitPagesFrom : integer;
fSplitPagesTo : integer;
fSplitLastFilePageFrom : integer;
fSplitChunkSize : integer;
fSplitFolder : string;
fSrcBackground : string;
fSrcBackgroundPageCount : integer;
fBackground : string;
fBackgroundPageCount : integer;
fNumOptions : boolean;
fNumPagesFrom : integer;
fNumPagesTo : integer;
fNumStart : integer;
fNumPortrait: boolean;
fNumPageSize: TSize; //page size x, y = width, height (in points)
fNumOffset: TSize; //page number offset x, y from left, bottom edge
fNumSize: integer; //page number font size (in points)
NumPageSize: TSize;
NumOffset: TSize;
fNumDateTimeFormat: string;
fSrcRotate : string;
fRotatePageCnt: integer;
fRotPagesFrom : integer;
fRotPagesTo : integer;
fSrcTools : string;
fToolsPageCount : integer;
fToolsFolder : string;
fToolsSet : integer;
fToolsIndex : integer;
fToolsIndexSet1 : integer;
fToolsIndexSet2 : integer;
fToolsIndexSet3 : integer;
fToolsIndexSet4 : integer;
fToolsAction : string;
fAttachment : string;
fAttachmentShort : string;
fSecondaryInputFile : string;
fSecondaryInputFileShort : string;
fFile2Paste : string;
fLaunchFile2 : string;
fLaunchFile2Short : string;
fCompareFile2 : string;
fCompareFile2Short : string;
fCompareSwap : boolean;
fUnpackFolder : string;
fAdvancedOp : string;
fAdvancedHint : string;
fSaveFile : string;
fPdftkVersion : string;
fPdftkPath : string;
fPdfExe : string;
fPdfArg : string;
fTxtExe : string;
fTxtArg : string;
fCompareExe : string;
fCompareArg : string;
fApp1Item : string;
fApp1Exe : string;
fApp1Arg : string;
fApp2Item : string;
fApp2Exe : string;
fApp2Arg : string;
fApp3Item : string;
fApp3Exe : string;
fApp3Arg : string;
fApp4Item : string;
fApp4Exe : string;
fApp4Arg : string;
fApp5Item : string;
fApp5Exe : string;
fApp5Arg : string;
fFormOldWindowProc: TWndMethod;
procedure FormNewWindowProc(var Message: TMessage);
procedure RefreshGrid(RowSelected: integer);
procedure ClearFileList;
procedure ClearButtonsAndLabels;
procedure UpdateButtonsAndMenus(RowSelected: integer);
function FmtPagesString(PagesStr: string; const maxPageNum : integer; out IsValid: boolean; const fileMarker: string = ''): string;
function FmtOrderedPagesString(PagesStr: string; const maxPageNum : integer; out IsValid: boolean; const fileMarker: string = ''; const complementPages: boolean = false; const pageRotation: string = 'right'): string;
function TruncateString(const s2 : string; pos, width : integer) : string;
procedure DeleteAllTmpFiles;
procedure LoadIniFileInfo;
procedure SaveIniFileInfo;
procedure ViewFile(const sFile, sAppExe : string);
procedure DoCollateFiles;
procedure DoSplitFile;
procedure DoBackgroundStamp(IsBackgroundOp: boolean);
procedure DoPageNumber;
procedure DoRotate;
procedure ClearDisplayToolsSet;
procedure DisplayToolsSet;
procedure DoDecrypt;
procedure DoRepair;
procedure DoAdvanced;
procedure DoDumpData;
procedure DoUpdate;
procedure DoAttach;
procedure DoUnpack;
procedure DoDumpFields;
procedure DoGenFDF;
procedure DoFillForm;
procedure DoFlatten;
procedure DoUncompress;
procedure DoCompress;
procedure IsSaveFileInUse;
function GetRepairedPageCount(const inputfile : string) : integer;
// function GetRepairedPageCount_0(const inputfile : string) : integer;
// function GetRepairedPageCount_1(const inputfile : string) : integer;
// function GetCatPageCount(const inputfile : string) : integer;
// function GetCatPageCount_1(const inputfile : string) : integer;
// function GetDumpPageCount(const inputfile : string) : integer;
protected
procedure CreateWnd; override;
procedure DestroyWnd; override;
end;
PSourceFileRec = ^TSourceFileRec;
TSourceFileRec = record
FullPath: string;
Filename: string;
Pages: string;
PageCount: integer;
end;
var
MainForm: TMainForm;
Path, tmpPath, user: string;
Origin: TPoint;
Expanded : boolean;
ErrorNum: DWORD;
allowParams, ownerParam, userParam: string;
const
PAGES_NOT_COUNTED = -2;
PAGECOUNT_NOT_FOUND = -1;
implementation
uses About;
{$R *.dfm}
{$R page.res}
type
TVS_FIXEDFILEINFO = record
dwSignature: DWORD ;
dwStrucVersion: DWORD ;
dwFileVersionMS: DWORD ;
dwFileVersionLS: DWORD ;
dwProductVersionMS: DWORD ;
dwProductVersionLS: DWORD ;
dwFileFlagsMask: DWORD ;
dwFileFlags: DWORD ;
dwFileOS: DWORD ;
dwFileType: DWORD ;
dwFileSubtype: DWORD ;
dwFileDateMS: DWORD ;
dwFileDateLS: DWORD ;
end;
TVS_VERSION_INFO = packed record
Length :WORD;
wValueLength :WORD;
wType :WORD;
szKey:array[0..Length('VS_VERSION_INFO')] of WideChar;
Padding1 :array[0..0] of Word;
FixedInfo :TVS_FIXEDFILEINFO;
end;
//------------------------------------------------------------------------------
function DPIScale(value: integer): integer;
begin
result := value * Screen.PixelsPerInch div 96;
end;
//------------------------------------------------------------------------------
function GetUsername: string;
var
len: DWORD;
begin
len := 1024;
SetLength(result,len);
if windows.GetUserName(PChar(result),len) then
SetLength(result,len-1) //returned len includes terminating null char
else
result := '';
end;
//------------------------------------------------------------------------------
function GetVersion(): string;
var
rs: TResourceStream;
vsvi: TVS_VERSION_INFO;
begin
result := '';
rs := TResourceStream.CreateFromID(hInstance, 1, RT_VERSION);
try
rs.read(vsvi, sizeof(vsvi));
if vsvi.wValueLength <> sizeof(vsvi.FixedInfo) then exit;
with vsvi.FixedInfo do
result := format('%d.%d.%d', [dwFileVersionMS shr 16,
dwFileVersionMS and $FFFF, dwFileVersionLS shr 16])
finally
rs.Free;
end;
end;
//------------------------------------------------------------------------------
const
NEVER_GIVE_UP = 0; //GiveUpTimeOutSecs param constant for WinExecAndWait32()
function WinExecAndWait32(const DosCommand: string;
ShowWindow, GiveUpTimeOutSecs: Word; out textOutput: string): DWord;
const
BufferSize = 8192;
var
StartUpInfo: TStartupInfo;
ProcessInfo: TProcessInformation;
OutputReadPipeHdl, OutputWritePipeHdl: THandle;
SecAttribs: TSecurityAttributes;
Buffer: PAnsiChar;
timeCnt, BytesRead, BytesAvailable, WaitResult: DWord;
PipeCreated, ProcessCreated: boolean;
begin
//nb: 1. The max command line length for CreateProcess() is 32767 characters.
Result := DWORD(-1); //ie result when unable to create process
if GiveUpTimeOutSecs = NEVER_GIVE_UP then
GiveUpTimeOutSecs := $FFFF; //(ie about 18hrs so not quite never :))
SecAttribs.nLength := SizeOf(TSecurityAttributes) ;
SecAttribs.bInheritHandle := true;
SecAttribs.lpSecurityDescriptor := nil;
PipeCreated := CreatePipe(OutputReadPipeHdl,
OutputWritePipeHdl, @SecAttribs, BufferSize);
StartUpInfo.cb := Sizeof(StartUpInfo);
StartUpInfo.wShowWindow := ShowWindow;
Buffer := AllocMem(BufferSize + 1);
try
if PipeCreated then
begin
fillChar( startUpInfo, sizeof(startUpInfo), 0);
startUpInfo.dwFlags := STARTF_USESHOWWINDOW or STARTF_USESTDHANDLES;
startUpInfo.hStdInput := 0;
startUpInfo.hStdOutput := OutputWritePipeHdl;
startUpInfo.hStdError := OutputWritePipeHdl;
ProcessCreated := CreateProcess(nil, PWideChar(dosCommand),
@SecAttribs, @SecAttribs, true, NORMAL_PRIORITY_CLASS,
nil, nil, startUpInfo, ProcessInfo);
textOutput := '';
end else
begin
startUpInfo.dwFlags := STARTF_USESHOWWINDOW;
ProcessCreated := CreateProcess(nil, PWideChar(dosCommand),
nil, nil, false, NORMAL_PRIORITY_CLASS or CREATE_NEW_CONSOLE,
nil, nil, startUpInfo, ProcessInfo);
end;
if ProcessCreated then
begin
timeCnt := 0;
repeat
WaitResult := WaitForSingleObject(ProcessInfo.hProcess, 100) ;
if PipeCreated then
begin
//nb: a full pipe buffer would cause an endless loop ...
if not PeekNamedPipe(OutputReadPipeHdl,
nil, 0, nil, @BytesAvailable, nil) then break;
if (BytesAvailable > 0) then
begin
//Interestingly, it appears that if the default pipe buffer is larger
//that that supplied in CreatePipe(), then the default size is used.
BytesRead := 0;
if BytesAvailable > BufferSize then
ReadFile(OutputReadPipeHdl, Buffer[0], BufferSize, BytesRead, nil)
else
ReadFile(OutputReadPipeHdl, Buffer[0], BytesAvailable, BytesRead, nil);
Buffer[BytesRead]:= #0;
OemToAnsi(Buffer, Buffer) ;
textOutput := textOutput + string(Buffer);
end;
end;
Application.ProcessMessages;
inc(timeCnt, 100);
until (WaitResult <> WAIT_TIMEOUT) or (timeCnt > GiveUpTimeOutSecs *1000);
if not GetExitCodeProcess(ProcessInfo.hProcess, Result)
and (result = STILL_ACTIVE) then
TerminateProcess(ProcessInfo.hProcess, result);
CloseHandle( ProcessInfo.hProcess );
CloseHandle( ProcessInfo.hThread );
end;
if PipeCreated then
begin
CloseHandle(OutputWritePipeHdl);
CloseHandle(OutputReadPipeHdl);
end;
finally
FreeMem(Buffer) ;
end;
end;
//------------------------------------------------------------------------------
type
PPdfObj = ^TPdfObj;
TPdfObj = record
number,
offset: integer;
filePtr: pAnsiChar;
stmObjNum: integer;
end;
function ReversePngFilter(var buffer: PAnsiChar; row_size, buffer_cnt: integer): integer;
var
i: integer;
p, end_buff: PAnsiChar;
filterType: AnsiChar;
function paeth(c, b, a: byte): byte;
var
p,pa,pb,pc: byte;
begin
//a = left, b = above, c = upper left
p := (a + b - c) and $FF;
pa := abs(p - a);
pb := abs(p - b);
pc := abs(p - c);
if (pa <= pb) and (pa <= pc) then result := a
else if pb <= pc then result := b
else result := c;
end;
function Average(a, b: byte): byte;
begin
//a = left, b = above
result := (a + b) shr 1;
end;
begin
//result will be new buffer length ...
result := buffer_cnt;
p := buffer;
end_buff := buffer + buffer_cnt;
while p < end_buff do
begin
filterType := p^;
dec(result);
dec(end_buff);
move((p +1)^, p^, end_buff - p);
case filterType of
#0:
;//no filtering used for this row
#1:
begin
//'sub' filtering
for i := 1 to row_size -1 do
(p+i)^ := AnsiChar(chr((ord((p+i)^) + ord((p+i -1)^)) and $FF));
end;
#2:
begin
//'up' filtering
if p > buffer then //leave top row alone
for i := 0 to row_size -1 do
(p+i)^ := AnsiChar(chr((ord((p+i)^) + ord((p+i - row_size)^)) and $FF));
end;
#3:
begin
//'average' filtering
if p = buffer then //ie top row
for i := 1 to row_size -1 do
(p+i)^ := AnsiChar(chr((ord((p+i)^) + average(ord((p+i -1)^), 0)) and $FF))
else
begin
p^ := AnsiChar(chr((ord((p)^) + average(0, ord((p - row_size)^))) and $FF));
for i := 1 to row_size -1 do
(p+i)^ := AnsiChar(chr((ord((p+i)^) +
average(ord((p+i -1)^), ord((p+i - row_size)^))) and $FF));
end;
end;
#4:
begin
//'paeth' filtering
if p = buffer then //ie top row
for i := 1 to row_size -1 do
(p+i)^ := AnsiChar(chr((ord((p+i)^) + paeth(ord((p+i -1)^), 0, 0)) and $FF))
else
begin
p^ := AnsiChar(chr((ord((p)^) + paeth(0, ord((p - row_size)^), 0)) and $FF));
for i := 1 to row_size -1 do
(p+i)^ := AnsiChar(chr((ord((p+i)^) + paeth(ord((p+i -1)^),
ord((p+i - row_size)^), ord((p+i - row_size -1)^))) and $FF));
end;
end;
end;
inc(p, row_size);
end;
ReallocMem(buffer, result);
end;
//------------------------------------------------------------------------------
function GetPdfPageCount(const filename: string): integer;
var
ms: TMemoryStream;
i, j, k, cnt, pagesNum, rootNum, predictor, filterColCnt: integer;
indexArray: array of integer;
w1,w2,w3: integer;
p, pEnd, pSaved, pTmp2, buffer, buffPtr: PAnsiChar;
PdfObj: PPdfObj;
PdfObjList: TList;
////////////////////////////////////////////////////////////////////////////////
// Summary of steps taken to parse a PDF doc for its page count :-
// (Who'd have thought it'd take about 1000 lines of code to do that!?)
////////////////////////////////////////////////////////////////////////////////
//1. See if there's a 'Linearization dictionary' for easy parsing.
// Mostly there isn't so ...
//2. Locate 'startxref' at end of file
//3. get 'xref' offset and go to xref table
//4. depending on version the xref table may or may not be in a compressed
// stream. If it's in a compressed stream (PDF ver 1.5+) then getting the
// page number requires a LOT of code which is too convoluted to summarise
// here. Otherwise it still requires a moderate amount of code ...
//5. parse the xref table and fill a list with object numbers and offsets
//6. handle subsections within xref table.
//7. read 'trailer' section at end of each xref
//8. store 'Root' object number if found in 'trailer'
//9. if 'Prev' xref found in 'trailer' - loop back to step 3
//10. locate Root in the object list
//11. locate 'Pages' object from Root
//12. get Count from Pages.
function GetNumber(out num: integer): boolean;
var
tmpStr: AnsiString;
begin
tmpStr := '';
while p^ < #33 do inc(p); //skip leading CR,LF & SPC
while (p^ in ['0'..'9']) do
begin
tmpStr := tmpStr + p^;
inc(p);
end;
result := tmpStr <> '';
if not result then exit;
num := strtoint(string(tmpStr));
end;
function IsString(const str: AnsiString): boolean;
var
len: integer;
begin
len := length(str);
result := CompareMem( p, PAnsiChar(str), len);
if result then inc(p, len); //02-Feb-09: modified
end;
function FindStrInDict(const str: AnsiString): boolean;
var
nestLvl: integer;
str1: AnsiChar;
begin
//nb: PDF 'dictionaries' start with '<<' and terminate with '>>'
result := false;
nestLvl := 0;
str1 := str[1];
while not result do
begin
while not (p^ in ['>','<',str1]) do inc(p);
if (p^ = '<') then
begin
if (p+1)^ = '<' then begin inc(nestLvl); inc(p); end;
end
else if (p^ = '>') then
begin
if (p+1)^ = '>' then
begin
dec(nestLvl);
inc(p);
if nestLvl <= 0 then exit;
end
end else
begin
result := (nestLvl < 2) and IsString(str);
if result then exit;
end;
inc(p);
end;
end;
function FindEndOfDict: boolean;
var
nestLvl: integer;
begin
result := true;
nestLvl := 1;
while result do
begin
while not (p^ in ['>','<']) do inc(p);
if (p^ = '<') then
begin
if (p+1)^ = '<' then begin inc(nestLvl); inc(p); end;
end
else if (p+1)^ = '>' then
begin
dec(nestLvl);
if nestLvl < 0 then
result := false
else if nestLvl = 0 then
begin
inc(p, 2);
exit; //found end of Dictionary
end;
inc(p); //skips first '>'
end;
inc(p);
end;
result := false;
end;
procedure SkipBlankSpace;
begin
while (p < pEnd) and (p^ < #33) do inc(p);
end;
function GotoObject(objNum: integer): boolean;
var
i: integer;
begin
i := 0;
while i < PdfObjList.Count do
if PPdfObj(PdfObjList[i]).number = objNum then break else inc(i);
result := (i < PdfObjList.Count) and
(PPdfObj(PdfObjList[i]).filePtr <> nil);
if not result then exit;
p := PPdfObj(PdfObjList[i]).filePtr;
result := GetNumber(i) and (i = objNum);
end;
function IsCompressedObject(objNum: integer): boolean;
var
i: integer;
begin
i := 0;
while i < PdfObjList.Count do
if PPdfObj(PdfObjList[i]).number = objNum then break else inc(i);
result := (i < PdfObjList.Count) and
(PPdfObj(PdfObjList[i]).filePtr = nil);
end;
function GetCompressedObjectBuffer(objNum: integer;
out buffer: PAnsiChar; out bufSize: integer): boolean;
var
i, N, First, objIdx: integer;
begin
result := false;
i := 0;
while i < PdfObjList.Count do
if PPdfObj(PdfObjList[i]).number = objNum then break else inc(i);
if (i = PdfObjList.Count) or
(PPdfObj(PdfObjList[i]).filePtr <> nil) then exit;
if not GotoObject(PPdfObj(PdfObjList[i]).stmObjNum) then exit;
objIdx := PPdfObj(PdfObjList[i]).offset;
pSaved := p;
if not FindStrInDict('/Type') then exit;
SkipBlankSpace;
if not IsString('/ObjStm') then exit;
p := pSaved;
//todo - handle uncompressed streams too
//assume all streams are compressed (though this is really optional)
if not FindStrInDict('/Filter') then exit;
SkipBlankSpace;
//check that this a compression type that we can handle ...
//nb: [/FlateDecode] is occasionally encountered with Tracker's PDF software
if not IsString('/FlateDecode') and not IsString('[/FlateDecode]') then exit;
p := pSaved;
if not FindStrInDict('/DecodeParms') or not
FindStrInDict('/Columns') or not GetNumber(filterColCnt) then
filterColCnt := 0; //j = column count (bytes per row)
if filterColCnt > 0 then
begin
SkipBlankSpace;
if not IsString('/Predictor') or not GetNumber(predictor) then
predictor := 0;
end;
p := pSaved;
if not FindStrInDict('/N') then exit;
//N = number of compressed objects in stream ...
if not GetNumber(N) or (objIdx > N) then exit;
p := pSaved;
if not FindStrInDict('/First') then exit;
if not GetNumber(First) then exit; //First = first object in stream
p := pSaved;
if not FindStrInDict('/Length') then exit;
if not GetNumber(k) then exit; //k = length of compressed stream
if not FindEndOfDict then exit;
while (p^ <> 's') do inc(p);
if not IsString('stream') then exit;
SkipBlankSpace;
//decompress the stream ...
buffer := nil;
{$IFDEF UNICODE}
zlib.ZDecompress(p, k, pointer(buffer), bufSize);
{$ELSE}
DecompressBuf(p, k, k*3, pointer(buffer), bufSize);
{$ENDIF}
if (filterColCnt > 0) and (predictor > 9) then
bufSize := ReversePngFilter(buffer, filterColCnt, bufSize);
p := buffer;
for i := 0 to objIdx -1 do
begin
if not GetNumber(k) then exit;
if not GetNumber(k) then exit;
end;
if not GetNumber(k) or (k <> objNum) then exit; //check it's the right obj
if not GetNumber(k) then exit; //k = offset of obj from first obj offset
if objIdx = N then //ie if the last object in the stream
begin
p := buffer + First + k;
bufSize := buffer + bufSize - p;
end else
begin
if not GetNumber(i) then exit; //skip the next object's number
if not GetNumber(i) then exit; //i == the next object's offset
p := buffer + First + k;
bufSize := (i - k); //ie next object's offset minus this object's offset
end;
move(p^, buffer^, bufSize);
ReallocMem(buffer, bufSize);
p := buffer; //nb: buffer now contains just the uncompressed object
result := bufSize > 0;
end;