ЗАКЛЮЧЕНИЕ

Программа состоит из 3-х модулей:

Исходный код программы:

program Project1;

uses

Forms,

Unit1 in 'Unit1.pas' {Form1},

SplitUtils in 'SplitUtils.pas',

Unit2 in 'Unit2.pas' {Form2};

{$R *.res}

begin

Application.Initialize;

Application.CreateForm(TForm2, Form2);

Application.CreateForm(TForm1, Form1);

Application.Run;

end.

Код программы 1-го модуля:

unit Unit2;

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

Dialogs, StdCtrls, Buttons, jpeg, ExtCtrls;

type

TForm2 = class(TForm)

Image1: TImage;

Label1: TLabel;

BitBtn1: TBitBtn;

BitBtn2: TBitBtn;

procedure BitBtn1Click(Sender: TObject);

procedure BitBtn2Click(Sender: TObject);

procedure Image1Click(Sender: TObject);

private

{ Private declarations }

public

{ Public declarations }

end;

var

Form2: TForm2;

implementation

{$R *.dfm}

Uses Unit1;

procedure TForm2.BitBtn1Click(Sender: TObject);

begin

Form1.Show;

end;

procedure TForm2.BitBtn2Click(Sender: TObject);

begin

close;

end;

procedure TForm2.Image1Click(Sender: TObject);

begin

end;

end.

Код программы 2-го модуля:

unit Unit1;

interface

uses

Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,

Dialogs, ComCtrls, StdCtrls, XPMan, ExtCtrls, Menus, jpeg;

type

TForm1 = class(TForm)

Button1: TButton;

OpenDialog1: TOpenDialog;

XPManifest1: TXPManifest;

Edit1: TEdit;

Label1: TLabel;

Button2: TButton;

OpenDialog2: TOpenDialog;

SaveDialog1: TSaveDialog;

StatusBar1: TStatusBar;

Edit2: TEdit;

GroupBox1: TGroupBox;

RadioGroup1: TRadioGroup;

MainMenu1: TMainMenu;

File1: TMenuItem;

Help1: TMenuItem;

About1: TMenuItem;

Splitting1: TMenuItem;

picking1: TMenuItem;

Exit1: TMenuItem;

MainForm1: TMenuItem;

Help2: TMenuItem;

AAboutprogram1: TMenuItem;

Close1: TMenuItem;

Label2: TLabel;

Label3: TLabel;

Image1: TImage;

procedure Button1Click(Sender: TObject);

procedure Button2Click(Sender: TObject);

procedure FormCreate(Sender: TObject);

procedure Splitting1Click(Sender: TObject);

procedure picking1Click(Sender: TObject);

procedure MainForm1Click(Sender: TObject);

procedure Close1Click(Sender: TObject);

private

{ Private declarations }

public

{ Public declarations }

end;

var

Form1: TForm1;

pb : TProgressBar;

implementation

{$R *.dfm}

uses

SplitUtils, CommCtrl, Unit2;

resourcestring

READY = ' Ãîòîâî';

WORKING = ' Ðàáîòàþ...';

ONLYDIGITS = 'Íåïðàâèëüíî óêàçàí ðàçìåð òîìà,'#13'ââîäèòå òîëüêî öèôðû !';

ERRORDIGITS = 'Íåïðàâèëüíî óêàçàí ðàçìåð òîìà,'#13'îí áîëüøå ðàçìåðà èñõîäíîãî ôàéëà !';

IPROTECT = 'Ðàçáîðêó è ñáîðêó ôàéëîâ ìîæíî ïðîèçâîäèòü òîëüêî íà æ¸ñòêîì äèñêå !';

function GetPanelRect: TRect;

begin

SendMessage(Form1.StatusBar1.Handle, SB_GETRECT, 0, integer(@result));

end;

procedure TForm1.FormCreate(Sender: TObject);

begin

pb := TProgressBar.Create(StatusBar1);

pb.Visible := false;

pb.Parent := StatusBar1;

pb.BoundsRect := GetPanelRect;

pb.Smooth := true;

pb.Step := 1;

end;

procedure TForm1.Button1Click(Sender: TObject);

const

MASK = '.part*';

COPY_ = 'copy /b';

var

ITOG, FIND,

inFile,

DT, BATNAME, FSIZE : String;

H : Integer;

begin

opendialog1.FileName := '';

if opendialog1.Execute then

begin

if not FileExists(opendialog1.FileName) then EXIT;

if not IsDigits(Edit1.Text) then

begin

ShowMessage(ONLYDIGITS);

EXIT;

end;

if GetFileSize(opendialog1.Files[0]) <= StrToInt(Edit1.Text) then

begin

ShowMessage(ERRORDIGITS);

EXIT;

end;

if not FileDriveIsFixed(OpenDialog1.FileName) then

begin

ShowMessage(IPROTECT);

EXIT;

end;

if opendialog1.Files.Count > 1 then

begin

StatusBar1.Panels[1].Text := WORKING;

pb.Visible := true;

for H := 0 To opendialog1.Files.Count - 1 do

begin

Edit2.Text:= GetFileCRC32Hex(opendialog1.Files[H]);

inFile:=opendialog1.Files[H];

SplitFile(inFile, StrToInt(Edit1.Text), pb);

FIND := inFile + MASK;

ITOG := FORMAT('%s %s "%s"', [COPY_, GetPartList(FIND), ExtractFileName(inFile)]);

if RadioGroup1.ItemIndex = 2 then SaveBat(BATNAME, 'Pause', True)

else

begin

BATNAME := Format('%s.bat', [opendialog1.Files[H]]);

DT:= Format('[%s %s]', [DateToStr(Date), TimeToStr(Time)]);

FSIZE := Format('Ðàçìåð: %s', [GetKByte(GetFileSize(inFile))]);

SaveBat(BATNAME, Format('REM <%s> CRC32: %s %s %s', [ExtractFileName(inFile), Edit2.Text, FSIZE, DT]), False);

SaveBat(BATNAME, ITOG, True);

if RadioGroup1.ItemIndex > 0 then SaveBat(BATNAME, 'Pause', True);

end;

end;

if RadioGroup1.ItemIndex = 1 then SaveBat(BATNAME, 'Pause', True);

end else

begin

Edit2.Text := GetFileCRC32Hex(opendialog1.FileName);

StatusBar1.Panels[1].Text := WORKING;

pb.Visible := true;

inFile := {ExtractShortPathName(}opendialog1.filename{)};

SplitFile(inFile, StrToInt(Edit1.Text), pb);

FIND := inFile + MASK;

ITOG := FORMAT('%s %s "%s"', [COPY_, GetPartList(FIND), ExtractFileName(inFile)]);

BATNAME := FORMAT('%s.bat', [opendialog1.filename]);

DT := Format('[%s %s]', [DateToStr(Date), TimeToStr(Time)]);

FSIZE := Format('Ðàçìåð: %s', [GetKByte(GetFileSize(inFile))]);

SaveBat(BATNAME, Format('REM <%s> CRC32: %s %s %s', [ExtractFileName(inFile), Edit2.Text, FSIZE, DT]), False);

SaveBat(BATNAME, ITOG, True);

if RadioGroup1.ItemIndex > 0 then SaveBat(BATNAME, 'Pause', True);

end;

end;

pb.Position := 0;

pb.Visible := false;

StatusBar1.Panels[1].Text := READY;

end;

procedure TForm1.Button2Click(Sender: TObject);

begin

opendialog2.FileName := '';

if opendialog2.Execute then

begin

if not FileExists(opendialog2.FileName) then EXIT;

savedialog1.FileName := ChangeFileExt(opendialog2.FileName, '');

if savedialog1.execute then

begin

if savedialog1.FileName = '' then EXIT;

if not FileDriveIsFixed(SaveDialog1.FileName) then

begin

ShowMessage(IPROTECT);

EXIT;

end;

StatusBar1.Panels[1].Text := WORKING;

CombineFiles(opendialog2.filename, savedialog1.filename);

Edit2.Text := GetFileCRC32Hex(savedialog1.FileName);

StatusBar1.Panels[1].Text := READY;

end;

end;

end;

procedure TForm1.Splitting1Click(Sender: TObject);

const

MASK = '.part*';

COPY_ = 'copy /b';

var

ITOG, FIND,

inFile,

DT, BATNAME, FSIZE: String;

H: Integer;

begin

opendialog1.FileName:= '';

if opendialog1.Execute then

begin

if not FileExists(opendialog1.FileName) then EXIT;

if not IsDigits(Edit1.Text) then

begin

ShowMessage(ONLYDIGITS);

EXIT;

end;

if GetFileSize(opendialog1.Files[0]) <= StrToInt(Edit1.Text) then

begin

ShowMessage(ERRORDIGITS);

EXIT;

end;

if not FileDriveIsFixed(OpenDialog1.FileName) then

begin

ShowMessage(IPROTECT);

EXIT;

end;

if opendialog1.Files.Count > 1 then

begin

StatusBar1.Panels[1].Text := WORKING;

pb.Visible := true;

for H := 0 To opendialog1.Files.Count - 1 do

begin

Edit2.Text := GetFileCRC32Hex(opendialog1.Files[H]);

inFile := opendialog1.Files[H];

SplitFile(inFile, StrToInt(Edit1.Text), pb);

FIND := inFile + MASK;

ITOG := FORMAT('%s %s "%s"', [COPY_, GetPartList(FIND), ExtractFileName(inFile)]);

if RadioGroup1.ItemIndex = 2 then SaveBat(BATNAME, 'Pause', True)

else

begin

BATNAME := Format('%s.bat', [opendialog1.Files[H]]);

DT := Format('[%s %s]', [DateToStr(Date), TimeToStr(Time)]);

FSIZE := Format('Ðàçìåð: %s', [GetKByte(GetFileSize(inFile))]);

SaveBat(BATNAME, Format('REM <%s> CRC32: %s %s %s', [ExtractFileName(inFile), Edit2.Text, FSIZE, DT]), False);

SaveBat(BATNAME, ITOG, True);

if RadioGroup1.ItemIndex > 0 then SaveBat(BATNAME, 'Pause', True);

end;

end;

if RadioGroup1.ItemIndex = 1 then SaveBat(BATNAME, 'Pause', True);

end else

begin

Edit2.Text := GetFileCRC32Hex(opendialog1.FileName);

StatusBar1.Panels[1].Text := WORKING;

pb.Visible := true;

inFile := opendialog1.filename;

SplitFile(inFile, StrToInt(Edit1.Text), pb);

FIND := inFile + MASK;

ITOG := FORMAT('%s %s "%s"', [COPY_, GetPartList(FIND), ExtractFileName(inFile)]);

BATNAME := FORMAT('%s.bat', [opendialog1.filename]);

DT := Format('[%s %s]', [DateToStr(Date), TimeToStr(Time)]);

FSIZE := Format('Ðàçìåð: %s', [GetKByte(GetFileSize(inFile))]);

SaveBat(BATNAME, Format('REM <%s> CRC32: %s %s %s', [ExtractFileName(inFile), Edit2.Text, FSIZE, DT]), False);

SaveBat(BATNAME, ITOG, True);

if RadioGroup1.ItemIndex > 0 then SaveBat(BATNAME, 'Pause', True);

end;

end;

pb.Position := 0;

pb.Visible := false;

StatusBar1.Panels[1].Text := READY;

end;

procedure TForm1.picking1Click(Sender: TObject);

begin

opendialog2.FileName := '';

if opendialog2.Execute then

begin

if not FileExists(opendialog2.FileName) then EXIT;

savedialog1.FileName := ChangeFileExt(opendialog2.FileName, '');

if savedialog1.execute then

begin

if savedialog1.FileName = '' then EXIT;

if not FileDriveIsFixed(SaveDialog1.FileName) then

begin

ShowMessage(IPROTECT);

EXIT;

end;

StatusBar1.Panels[1].Text := WORKING;

CombineFiles(opendialog2.filename, savedialog1.filename);

Edit2.Text := GetFileCRC32Hex(savedialog1.FileName);

StatusBar1.Panels[1].Text := READY;

end;

end;

end;

procedure TForm1.MainForm1Click(Sender: TObject);

begin

Form2.Show;

end;

procedure TForm1.Close1Click(Sender: TObject);

begin

close;

Form2.show;

end;

end.

Код программы 3-го модуля:

unit SplitUtils;

interface

uses

Windows,Unit2, Forms, SysUtils, Classes, ComCtrls, CommCtrl;

function DriveIsFixed(Drive: PChar): boolean;

function GetFileCRC32Hex(const Filename: String): String;

function GetFileSize(const FileName: string): Longint;

function GetKByte(Byte: integer): string;

procedure SplitFile(FileName: TFileName; SizeofFiles: Integer; ProgressBar: TProgressBar);

procedure CombineFiles(FileName, CombinedFileName: TFileName);

procedure SaveBat(FileName: TFileName; Text: String; AddInExistingFile: Boolean = True);

function IsDigits(Str: String): boolean;

function GetPartList(MASKA: string): string;

function FileDriveIsFixed(FileName: TFileName): boolean;

implementation

function DriveIsFixed(Drive: PChar): boolean;

var

i: integer;

begin

i := GetDriveType(Drive);

//0-Unknown, 1-NoDrive, 2-Floppy, 3-Fixed, 4-Network, 5-CDROM, 6-RAM

Result := (i = 3);

end;

function FileDriveIsFixed(FileName: TFileName): boolean;

var

i : integer;

DRIVE : String;

begin

DRIVE := ExtractFileDrive(FileName);

DRIVE := Copy(DRIVE, 0, 1) + ':\';

i := GetDriveType(PChar(DRIVE));

Result := (i = 3);

end;

function GetFileCRC32Int(const Filename: String): DWord;

const

dwCRC32Table: array[0..255] of DWORD =

($00000000, $77073096, $EE0E612C, $990951BA,

$076DC419, $706AF48F, $E963A535, $9E6495A3,

$0EDB8832, $79DCB8A4, $E0D5E91E, $97D2D988,

$09B64C2B, $7EB17CBD, $E7B82D07, $90BF1D91,

$1DB71064, $6AB020F2, $F3B97148, $84BE41DE,

$1ADAD47D, $6DDDE4EB, $F4D4B551, $83D385C7,

$136C9856, $646BA8C0, $FD62F97A, $8A65C9EC,

$14015C4F, $63066CD9, $FA0F3D63, $8D080DF5,

$3B6E20C8, $4C69105E, $D56041E4, $A2677172,

$3C03E4D1, $4B04D447, $D20D85FD, $A50AB56B,

$35B5A8FA, $42B2986C, $DBBBC9D6, $ACBCF940,

$32D86CE3, $45DF5C75, $DCD60DCF, $ABD13D59,

$26D930AC, $51DE003A, $C8D75180, $BFD06116,

$21B4F4B5, $56B3C423, $CFBA9599, $B8BDA50F,

$2802B89E, $5F058808, $C60CD9B2, $B10BE924,

$2F6F7C87, $58684C11, $C1611DAB, $B6662D3D,

$76DC4190, $01DB7106, $98D220BC, $EFD5102A,

$71B18589, $06B6B51F, $9FBFE4A5, $E8B8D433,

$7807C9A2, $0F00F934, $9609A88E, $E10E9818,

$7F6A0DBB, $086D3D2D, $91646C97, $E6635C01,

$6B6B51F4, $1C6C6162, $856530D8, $F262004E,

$6C0695ED, $1B01A57B, $8208F4C1, $F50FC457,

$65B0D9C6, $12B7E950, $8BBEB8EA, $FCB9887C,

$62DD1DDF, $15DA2D49, $8CD37CF3, $FBD44C65,

$4DB26158, $3AB551CE, $A3BC0074, $D4BB30E2,

$4ADFA541, $3DD895D7, $A4D1C46D, $D3D6F4FB,

$4369E96A, $346ED9FC, $AD678846, $DA60B8D0,

$44042D73, $33031DE5, $AA0A4C5F, $DD0D7CC9,

$5005713C, $270241AA, $BE0B1010, $C90C2086,

$5768B525, $206F85B3, $B966D409, $CE61E49F,

$5EDEF90E, $29D9C998, $B0D09822, $C7D7A8B4,

$59B33D17, $2EB40D81, $B7BD5C3B, $C0BA6CAD,

$EDB88320, $9ABFB3B6, $03B6E20C, $74B1D29A,

$EAD54739, $9DD277AF, $04DB2615, $73DC1683,

$E3630B12, $94643B84, $0D6D6A3E, $7A6A5AA8,

$E40ECF0B, $9309FF9D, $0A00AE27, $7D079EB1,

$F00F9344, $8708A3D2, $1E01F268, $6906C2FE,

$F762575D, $806567CB, $196C3671, $6E6B06E7,

$FED41B76, $89D32BE0, $10DA7A5A, $67DD4ACC,

$F9B9DF6F, $8EBEEFF9, $17B7BE43, $60B08ED5,

$D6D6A3E8, $A1D1937E, $38D8C2C4, $4FDFF252,

$D1BB67F1, $A6BC5767, $3FB506DD, $48B2364B,

$D80D2BDA, $AF0A1B4C, $36034AF6, $41047A60,

$DF60EFC3, $A867DF55, $316E8EEF, $4669BE79,

$CB61B38C, $BC66831A, $256FD2A0, $5268E236,

$CC0C7795, $BB0B4703, $220216B9, $5505262F,

$C5BA3BBE, $B2BD0B28, $2BB45A92, $5CB36A04,

$C2D7FFA7, $B5D0CF31, $2CD99E8B, $5BDEAE1D,

$9B64C2B0, $EC63F226, $756AA39C, $026D930A,

$9C0906A9, $EB0E363F, $72076785, $05005713,

$95BF4A82, $E2B87A14, $7BB12BAE, $0CB61B38,

$92D28E9B, $E5D5BE0D, $7CDCEFB7, $0BDBDF21,

$86D3D2D4, $F1D4E242, $68DDB3F8, $1FDA836E,

$81BE16CD, $F6B9265B, $6FB077E1, $18B74777,

$88085AE6, $FF0F6A70, $66063BCA, $11010B5C,

$8F659EFF, $F862AE69, $616BFFD3, $166CCF45,

$A00AE278, $D70DD2EE, $4E048354, $3903B3C2,

$A7672661, $D06016F7, $4969474D, $3E6E77DB,

$AED16A4A, $D9D65ADC, $40DF0B66, $37D83BF0,

$A9BCAE53, $DEBB9EC5, $47B2CF7F, $30B5FFE9,

$BDBDF21C, $CABAC28A, $53B39330, $24B4A3A6,

$BAD03605, $CDD70693, $54DE5729, $23D967BF,

$B3667A2E, $C4614AB8, $5D681B02, $2A6F2B94,

$B40BBE37, $C30C8EA1, $5A05DF1B, $2D02EF8D);

var

F: file;

BytesRead: DWORD;

Buffer: array[1..65521] of Byte;

i: Word;

begin

FileMode := 0;

result := $ffffffff;

{$I-}

AssignFile(F, FileName);

Reset(F, 1);

if IOResult = 0 then

begin

repeat

BlockRead(F, Buffer, SizeOf(Buffer), BytesRead);

for i := 1 to BytesRead do

result := (result shr 8) xor dwCRC32Table[Buffer[i] xor (result and $000000FF)];

until BytesRead = 0;

end;

CloseFile(F);

{$I+}

result := not result;

end;

function GetFileCRC32Hex(const Filename: String): String;

begin

result:= IntToHex(GetFileCRC32Int(Filename), 6);

end;

/////////////////////////////////////////////////////////////////////////////////

//Ïîëó÷àåì ðàçìåð ôàéëà ÷åðåç SearchRec //

/////////////////////////////////////////////////////////////////////////////////

function GetFileSize(const FileName: string): Longint;

var

SearchRec : TSearchRec;

begin

if FindFirst(ExpandFileName(FileName), faAnyFile, SearchRec) = 0 then

Result := SearchRec.Size

else Result := -1;

FindClose(SearchRec);

end;

function GetKByte(Byte: integer): string;

var

h : integer;

begin

h := byte div 1024;

if h = 0 then

Result := Format('%d áàéò', [Byte])

else

Result := Format('~%d ÊÁ', [h]);

end;

procedure SplitFile(FileName: TFileName; SizeofFiles: Integer; ProgressBar: TProgressBar);

var

i : Word;

fs, sStream : TFileStream;

SplitFileName : String;

begin

ProgressBar.Position := 0;

fs := TFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);

try

for i := 1 to Trunc(fs.Size / SizeofFiles) + 1 do

begin

Application.ProcessMessages;

SplitFileName := Format('%s.part%s', [FileName, FormatFloat('000', i)]);

sStream := TFileStream.Create(SplitFileName, fmCreate or fmShareExclusive);

try

if fs.Size - fs.Position < SizeofFiles then SizeofFiles := fs.Size - fs.Position;

sStream.CopyFrom(fs, SizeofFiles);

Application.ProcessMessages;

ProgressBar.Position := Round((fs.Position / fs.Size) * 100);

finally

sStream.Free;

end;

end;

finally

fs.Free;

end;

end;

procedure CombineFiles(FileName, CombinedFileName: TFileName);

var

i : integer;

fs, sStream : TFileStream;

begin

i := 1;

fs := TFileStream.Create(CombinedFileName, fmCreate or fmShareExclusive);

try

while FileExists(FileName) do

begin

Application.ProcessMessages;

sStream := TFileStream.Create(FileName, fmOpenRead or fmShareDenyWrite);

try

fs.CopyFrom(sStream, 0);

finally

sStream.Free;

end;

Inc(i);

Application.ProcessMessages;

FileName := ChangeFileExt(FileName, '.part'+FormatFloat('000', i));

end;

finally

fs.Free;

end;

end;

procedure SaveBat(FileName: TFileName; Text: String; AddInExistingFile: Boolean = True);

var

F: TextFile;

begin

AssignFile(F, FileName);

if (AddInExistingFile) and (FileExists(FileName)) then

begin

Append(F);

Writeln(F, Text);

Flush(F);

end else

begin

Rewrite(F);

Writeln(F, Text);

end;

CloseFile(F);

end;

function IsDigits(Str: String): boolean;

var

i : Integer;

begin

Result := True;

for i := 1 to Length(Str) do

if Str[i] in ['A'..'Z', 'a'..'z', 'À'..'ß', 'à'..'ÿ'] then

begin

Result := False;

Exit;

end;

end;

function GetPartList(MASKA: string): string;

var

SR : TSearchRec;

L : String;

begin

if FindFirst(MASKA, faAnyFile, SR) = 0 then

repeat

L := L + '"' + SR.Name + '"+';

until FindNext(SR) <> 0;

FindClose(SR);

L := Copy(L, 0, Length(L)-1);

RESULT := L;

end;

end.