Filesplitter

Ins4ne · 10. Februar 2009

Code

{$A+,B-,C+,D+,E-,F-,G+,H+,I+,J-,K-,L+,M-,N+,O+,P+,Q-,R-,S-,T-,U-,V+,W-,X+,Y+,Z1}
{$MINSTACKSIZE $00004000}
{$MAXSTACKSIZE $00100000}
{$IMAGEBASE $00400000}
{$APPTYPE GUI}
program FileSplitter;
uses
windows,
messages,
CommDlg,
ShlObj,
CommCtrl,
ShellAPI,
MpuTools in 'units\MpuTools.pas',
globals in 'units\globals.pas';
{$R 'res\Resource.res'}
{$R 'res\XPTheme.res'}
type
TSplitThreadParams = record
FileToSplit: array[0..MAX_PATH] of Char;
DestFolder: array[0..MAX_PATH] of Char;
SizeOfParts: Int64;
CntParts: Int64;
end;
PSplitThreadParams = ^TSplitThreadParams;
var
TickStart : DWORD;
function GetVersionInfo(var VersionString, Description: string): DWORD;
type
PDWORDArr = ^DWORDArr;
DWORDArr = array[0..0] of DWORD;
var
VerInfoSize : DWORD;
VerInfo : Pointer;
VerValueSize : DWORD;
VerValue : PVSFixedFileInfo;
LangInfo : PDWORDArr;
LangID : DWORD;
Desc : PChar;
i : Integer;
begin
result := 0;
VerInfoSize := GetFileVersionInfoSize(PChar(ParamStr(0)), LangID);
if VerInfoSize <> 0 then
begin
VerInfo := Pointer(GlobalAlloc(GPTR, VerInfoSize));
if Assigned(VerInfo) then
try
if GetFileVersionInfo(PChar(ParamStr(0)), 0, VerInfoSize, VerInfo) then
begin
if VerQueryValue(VerInfo, '\', Pointer(VerValue), VerValueSize) then
begin
with VerValue^ do
begin
VersionString := Format('%d.%d.%d.%d', [dwFileVersionMS shr 16, dwFileVersionMS and $FFFF,
dwFileVersionLS shr 16, dwFileVersionLS and $FFFF]);
end;
end
else
VersionString := '';
// Description
if VerQueryValue(VerInfo, '\VarFileInfo\Translation', Pointer(LangInfo), VerValueSize) then
begin
if (VerValueSize > 0) then
begin
// Divide by element size since this is an array
VerValueSize := VerValueSize div sizeof(DWORD);
// Number of language identifiers in the table
(********************************************************************)
for i := 0 to VerValueSize - 1 do
begin
// Swap words of this DWORD
LangID := (LoWord(LangInfo[i]) shl 16) or HiWord(LangInfo[i]);
// Query value ...
if VerQueryValue(VerInfo, @Format('\StringFileInfo\%8.8x\FileDescription', [LangID])[1], Pointer(Desc),
VerValueSize) then
Description := Desc;
end;
(********************************************************************)
end;
end
else
Description := '';
end;
finally
GlobalFree(THandle(VerInfo));
end
else // GlobalAlloc
result := GetLastError;
end
else // GetFileVersionInfoSize
result := GetLastError;
end;
function GetCheck(hDlg: THandle; ID: DWORD): Boolean;
begin
Result := IsDlgButtonChecked(hDlg, ID) = BST_CHECKED;
end;
function SetCheck(bCheck: Boolean): DWORD;
begin
if bCheck then
Result := BST_CHECKED
else
Result := BST_UNCHECKED;
end;
function InsertBlanks(s: string): string;
var
i : Integer;
begin
for i := length(s) downto 1 do
begin
if i mod 3 = 0 then
begin
Insert(' ', s, i - 1);
end;
end;
Result := s;
end;
function BuildBatchFile(BatchFilename: string): Integer;
var
s : string;
Loop : Integer;
F : TextFile;
len : Integer;
begin
s := 'copy /b ';
len := length(Files);
for Loop := 0 to len - 1 do
begin
s := s + '"' + Files[Loop] + '"' + ' + ';
end;
s := copy(s, 0, length(s) - 2);
s := s + ' ' + '"' + ChangeFileExt(Files[0], '') + '"';
AssignFile(F, BatchFilename);
{$I-}
Rewrite(F);
{$I+}
if IOResult = 0 then
begin
Writeln(F, s);
CloseFile(F);
end;
result := GetLastError();
end;
function SplitFile(Filename, DestFolder: string; SplitSize, CntParts: Int64): Integer;
function GetClusterSize(Drive: Char): Cardinal;
var
SectorPerCluster: Cardinal;
BytesPerSector : Cardinal;
NumberOfFreeClusters: Cardinal;
TotalNumberOfClusters: Cardinal;
begin
GetDiskFreeSpace(PChar(Drive + ':\'), SectorPerCluster, BytesPerSector, NumberOfFreeClusters,
TotalNumberOfClusters);
Result := SectorPerCluster * BytesPerSector;
end;
var
hFile : THandle;
SizeOfFile : Int64;
hPart : THandle;
Loop : Cardinal;
Partname : string;
BlockSize : Cardinal;
MemBuffer : array of Byte;
minlen : Integer;
BytesToRead, BytesRead, BytesWritten: Integer;
OverallBytesRead : Int64;
ProgressCurrent, ProgressOld: Int64;
begin
TickStart := GetTickCount;
BlockSize := -(-GetClusterSize(FileName[1]) and -GetClusterSize(DestFolder[1]) and -1048576);
SetLength(MemBuffer, BlockSize - 1);
bRunning := 1;
OverallBytesRead := 0;
SizeOfFile := GetFileSize(PChar(Filename));
hFile := CreateFile(PChar(Filename), GENERIC_READ, FILE_SHARE_READ, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL
or FILE_FLAG_SEQUENTIAL_SCAN or FILE_FLAG_WRITE_THROUGH, 0);
if hFile <> INVALID_HANDLE_VALUE then
begin
for Loop := 1 to CntParts do
begin
// Reset variables
ProgressOld := 0;
BytesToRead := SplitSize;
// build filename of the parts
Partname := DestFolder + '\' + ExtractFilename(Filename) + Format('.%3.3d', [Loop]);
if FileExists(Partname) then
DeleteFile(PChar(Partname));
hPart := CreateFile(PChar(Partname), GENERIC_WRITE, FILE_SHARE_WRITE, nil, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL
or FILE_FLAG_SEQUENTIAL_SCAN or FILE_FLAG_WRITE_THROUGH, 0);
if hPart <> INVALID_HANDLE_VALUE then
begin
repeat
minlen := Min(length(MemBuffer), BytesToRead);
BytesRead := FileRead(hFile, MemBuffer[0], minLen);
if BytesRead > -1 then
begin
BytesWritten := FileWrite(hPart, MemBuffer[0], BytesRead);
Dec(BytesToRead, length(MemBuffer));
// progress stuff ////////////////////////////////////////////////////
OverallBytesRead := OverallBytesRead + BytesWritten;
ProgressCurrent := (OverallBytesRead * 100) div SizeOfFile;
if ProgressCurrent <> ProgressOld then
begin
ProgressOld := ProgressCurrent;
end;
SendMessage(hApp, FSM_PROGRESS, ProgressCurrent, Integer(PChar(Partname)));
end
else
begin
MessageBox(hApp, PChar(SysErrorMessage(GetLastError)), PChar(APPNAME), 0);
Break;
end;
//////////////////////////////////////////////////////////////////////
until (BytesToRead <= 0) or (bRunning = 0);
end;
FileClose(hPart);
if bRunning = 0 then
Break;
end;
FileClose(hFile);
end;
SendMessage(hApp, FSM_FINISH, GetTickCount - TickStart, GetLastError());
result := GetLastError();
end;
function SplitThread(Param: Pointer): Integer;
var
Filename : string;
DestFolder : string;
SplitSize : Int64;
CntParts : Int64;
ECode : Integer;
begin
result := 0;
Filename := PSplitThreadParams(Param)^.FileToSplit;
DestFolder := PSplitThreadParams(Param)^.DestFolder;
SplitSize := PSplitThreadParams(Param)^.SizeOfParts;
CntParts := PSplitThreadParams(Param)^.CntParts;
ECode := SplitFile(Filename, DestFolder, SplitSize, CntParts);
if bRunning = 1 then
begin
if (ECode = 0) or (ECode = 183) then
begin
BuildBatchFile(DestFolder + '\' + ChangeFileExt(ExtractFilename(Filename), '.bat'));
end
else
Messagebox(0, @SysErrorMessage(ECode)[1], APPNAME, MB_ICONSTOP);
end;
Dispose(Param);
end;
function CalcCntParts(const Filename: string; Size: Int64): Cardinal;
var
FileSize : Int64; // >4GB
begin
result := 0;
if Size > 0 then
begin
FileSize := GetFileSize(PChar(Filename));
if (FileSize > 0) and (FileSize div Size < High(Integer)) then
result := (FileSize - 1) div Integer(Size) + 1;
end;
end;
function CalcFileSize(const Filename: string; CntParts: Cardinal): Int64;
var
SizeF : Extended;
Size : Int64;
FileSize : Int64;
begin
//Size := 0;
SizeF := 0.0;
FileSize := GetFileSize(PChar(Filename));
if (FileSize > 0) and (CntParts <> 0) then
begin
SizeF := FileSize / CntParts;
end;
Size := Round(SizeF);
result := Size + 1;
end;
procedure EnableControls(hDlg: HWND; Enabled: Boolean);
begin
EnableWindow(GetDlgItem(hDlg, IDC_BTNSPLIT), Enabled);
EnableWindow(GetDlgItem(hDlg, IDC_BTNCANCEL), Enabled);
EnableWindow(GetDlgItem(hDlg, IDC_EDTFILETOSPLIT), Enabled);
EnableWindow(GetDlgItem(hDlg, IDC_BTNOPENSPLITFILE), Enabled);
EnableWindow(GetDlgItem(hDlg, IDC_EDTTARGETFOLDER), Enabled);
EnableWindow(GetDlgItem(hDlg, IDC_BTNSELFOLDER), Enabled);
EnableWindow(GetDlgItem(hDlg, IDC_CHKCOPYTODISK), Enabled);
EnableWindow(GetDlgItem(hDlg, IDC_EDTFILESIZE), Enabled);
end;
function dlgfunc(hDlg: hWnd; uMsg: dword; wParam: wParam; lParam: lParam):
bool; stdcall;
var
MyFont : HFONT;
rect : TRect;
pt : TPoint;
dwReturn : DWORD;
Version : string;
Description : string;
SplitThreadParams : PSplitThreadParams;
buffer : array[0..MAX_PATH] of Char;
s : string;
Translated : LongBool;
hThread : THandle;
ThreadID : Cardinal;
Speed : String;
begin
result := true;
case uMsg of
WM_INITDIALOG:
begin
Files := nil;
hApp := hDlg;
if SendMessage(hDlg, WM_SETICON, ICON_BIG, Integer(LoadIcon(hInstance, MAKEINTRESOURCE(1)))) = 0 then
SendMessage(hDlg, WM_SETICON, ICON_SMALL, Integer(LoadIcon(hInstance, MAKEINTRESOURCE(1))));
MyFont := CreateFont(FontSize, 0, 0, 0, 900, 0, 0, 0, ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
DEFAULT_QUALITY, DEFAULT_PITCH, FontName);
if MyFont <> 0 then
SendDlgItemMessage(hDlg, 999, WM_SETFONT, Integer(MyFont), Integer(true));
s := APPNAME;
SetWindowText(hDlg, pointer(s));
SendDlgItemMessage(hDlg, IDC_UDPARTS, UDM_SETRANGE32, 1, 999);
EnableControl(hDlg, IDC_OPT_SIZE, FALSE);
EnableControl(hDlg, IDC_OPT_PARTS, FALSE);
EnableControl(hDlg, IDC_UDPARTS, FALSE);
SendDlgItemMessage(hDlg, IDC_EDT_SIZE, EM_SETREADONLY, -1, 0);
SendDlgItemMessage(hDlg, IDC_EDT_PARTS, EM_SETREADONLY, -1, 0);
SendDlgItemMessage(hDlg, IDC_EDT_PARTS, EM_SETLIMITTEXT, 3, 0);
CheckDlgButton(hDlg, IDC_OPT_SIZE, BST_CHECKED);
end;
WM_CTLCOLORSTATIC:
begin
case GetDlgCtrlId(lParam) of
999:
begin
whitebrush := CreateBrushIndirect(WhiteLB);
SetBkColor(wParam, WhiteLB.lbColor);
result := BOOL(whitebrush);
end;
else
SetBkColor(wParam, GetSysColor(COLOR_BTNFACE));
SetBkMode(wParam, TRANSPARENT);
result := BOOL(GetSysColorBrush(COLOR_BTNFACE));
end;
end;
{ let's move it, move it }
WM_LBUTTONDOWN:
begin
SetCursor(LoadCursor(0, IDC_SIZEALL));
SendMessage(hDlg, WM_NCLBUTTONDOWN, HTCAPTION, lParam);
end;
WM_SIZE:
begin
MoveWindow(GetDlgItem(hDlg, 999), 0, 0, loword(lParam), 75, TRUE);
s := APPNAME;
SetDlgItemText(hDlg, 999, pointer(s));
SetWindowPos(GetDlgItem(hDlg, 124), GetDlgItem(hDlg, 999), loword(lParam) - 47, 7, 40, 22, 0);
SetWindowPos(GetDlgItem(hDlg, 129), GetDlgItem(hDlg, 999), loword(lParam) - 47, 35, 40, 22, 0);
GetWindowRect(GetDlgItem(hDlg, 999), rect);
pt.X := rect.Left;
pt.Y := rect.Bottom;
ScreenToClient(hDlg, pt);
MoveWindow(GetDlgItem(hDlg, 998), 0, pt.Y, rect.Right - rect.Left, 2, True);
MoveWindow(GetDlgItem(hDlg, 997), 0, 250, rect.Right - rect.Left, 2, True);
end;
WM_COMMAND:
begin
if wParam = ID_CANCEL then
SendMessage(hDlg, WM_CLOSE, 0, 0);
if hiword(wParam) = BN_CLICKED then
begin
case loword(wParam) of
IDC_BTNABOUT:
begin
dwReturn := GetVersionInfo(Version, Description);
if dwReturn = 0 then
begin
s := Format(INFO_TEXT, [Version, Description]);
MyMessageBox(hDlg, APPNAME, s, 1);
end
else
Messagebox(hDlg, PChar(SysErrorMessage(dwReturn)), APPNAME, MB_ICONSTOP);
end;
IDC_BTNOPENSPLITFILE:
begin
SetDlgItemText(hDlg, IDC_EDT_SIZE, nil);
SetDlgItemText(hDlg, IDC_EDT_PARTS, nil);
FileToSplit := OpenFile(hDlg, '');
if FileToSplit <> '' then
begin
SetDlgItemText(hDlg, IDC_EDTFILETOSPLIT, PChar(FileToSplit));
FileSize := GetFilesize(FileToSplit);
Str(FileSize / 1024 / 1024: 0: 2, s);
SetWindowText(GetDlgItem(hDlg, IDC_STCSTATUSWND), PChar(s + ' MB'));
end;
end;
IDC_BTNSELFOLDER:
begin
dwReturn := GetFolder(hDlg, 0, rsChooseFolder, TargetDir);
if dwReturn = 0 then
SetDlgItemText(hDlg, IDC_EDTTARGETFOLDER, PChar(TargetDir))
else
Messagebox(hDlg, PChar(SysErrorMessage(dwReturn)), APPNAME, MB_ICONSTOP);
end;
IDC_OPT_SIZE, IDC_OPT_PARTS:
begin
SendDlgItemMessage(hDlg, IDC_EDT_SIZE, EM_SETREADONLY, Integer(not GetCheck(hDlg, IDC_OPT_SIZE)), 0);
SendDlgItemMessage(hDlg, IDC_EDT_PARTS, EM_SETREADONLY, Integer(GetCheck(hDlg, IDC_OPT_SIZE)), 0);
EnableControl(hDlg, IDC_UDPARTS, not GetCheck(hDlg, IDC_OPT_SIZE));
if loword(wParam) = IDC_OPT_SIZE then
SetFocus(GetDlgItem(hDlg, IDC_EDT_SIZE));
if loword(wParam) = IDC_OPT_PARTS then
SetFocus(GetDlgItem(hDlg, IDC_EDT_PARTS));
end;
IDC_BTNSPLIT:
begin
Idx := 0;
setlength(Files, 0);
New(SplitThreadParams);
GetDlgItemText(hDlg, IDC_EDTFILETOSPLIT, buffer, sizeof(buffer));
lstrcpy(SplitThreadParams.FileToSplit, buffer);
GetDlgItemText(hDlg, IDC_EDTTARGETFOLDER, buffer, sizeof(buffer));
lstrcpy(SplitThreadParams.DestFolder, Buffer);
SplitThreadParams.SizeOfParts := SizeOfParts;
SplitThreadparams.CntParts := CountParts;
SetLength(Files, CountParts);
hThread := BeginThread(nil, 0, SplitThread, SplitThreadParams, 0, ThreadID);
if hThread <> 0 then
begin
CloseHandle(hThread);
EnableControls(hDlg, False);
EnableWindow(GetDlgItem(hDlg, IDC_BTNCANCEL), True);
end;
end;
IDC_BTNCANCEL:
begin
InterlockedExchange(bRunning, 0);
end;
end;
end;
if hiword(wParam) = EN_CHANGE then { edit changed }
begin
case loword(wParam) of
IDC_EDTFILETOSPLIT, IDC_EDTTARGETFOLDER:
begin
GetDlgItemText(hDlg, IDC_EDTFILETOSPLIT, buffer, MAX_PATH);
FileToSplit := string(buffer);
GetDlgItemText(hDlg, IDC_EDTTARGETFOLDER, buffer, MAX_PATH);
TargetDir := string(buffer);
EnableControl(hDlg, IDC_OPT_SIZE, (FileExists(FileToSplit)) and (DirectoryExists(TargetDir)));
SendDlgItemMessage(hDlg, IDC_EDT_SIZE, EM_SETREADONLY, Integer(not (FileExists(FileToSplit) and
(DirectoryExists(TargetDir)))), 0);
EnableControl(hDlg, IDC_OPT_PARTS, (FileExists(FileToSplit)) and (DirectoryExists(TargetDir)));
//if not FileExists(FileToSplit) then
// SetDlgItemText(hDlg, IDC_STCSTATUSWND, PChar(rsFileNotExists))
// else
// SetDlgItemText(hDlg, IDC_STCSTATUSWND, '');
// if not DirectoryExists(TargetDir) then
// SetDlgItemText(hDlg, IDC_STCSTATUSWND, PChar(rsFolderNotExists))
// else
// SetDlgItemText(hDlg, IDC_STCSTATUSWND, '');
if ((FileExists(FileToSplit)) and (DirectoryExists(TargetDir)) and (SizeOfParts > 0))
or ((FileExists(FileToSplit)) and (DirectoryExists(TargetDir)) and (CountParts > 1)) then
EnableControl(hDlg, IDC_BTNSPLIT, True)
else
EnableControl(hDlg, IDC_BTNSPLIT, False);
end;
IDC_EDT_SIZE:
begin
if GetCheck(hDlg, IDC_OPT_SIZE) then
begin
SizeOfParts := GetDlgItemInt(hDlg, IDC_EDT_SIZE, Translated, False) * 1024 * 1024;
CountParts := CalcCntParts(FileToSplit, SizeOfParts);
SetDlgItemInt(hDlg, IDC_EDT_PARTS, CountParts, False);
end;
if ((FileExists(FileToSplit)) and (DirectoryExists(TargetDir)) and (SizeOfParts > 1))
or ((FileExists(FileToSplit)) and (DirectoryExists(TargetDir)) and (CountParts > 1)) then
EnableControl(hDlg, IDC_BTNSPLIT, True)
else
EnableControl(hDlg, IDC_BTNSPLIT, False);
end;
IDC_EDT_PARTS:
begin
if not GetCheck(hDlg, IDC_OPT_SIZE) then
begin
CountParts := GetDlgItemInt(hDlg, IDC_EDT_PARTS, Translated, False);
SizeOfParts := CalcFileSize(FileToSplit, CountParts);
Str((SizeOfParts / 1024 / 1024):0:3, s);
SetDlgItemText(hDlg, IDC_EDT_SIZE, PChar(s));
end;
if ((FileExists(FileToSplit)) and (DirectoryExists(TargetDir)) and (SizeOfParts > 1))
or ((FileExists(FileToSplit)) and (DirectoryExists(TargetDir)) and (CountParts > 1)) then
EnableControl(hDlg, IDC_BTNSPLIT, True)
else
EnableControl(hDlg, IDC_BTNSPLIT, False);
end;
end;
end;
end;
WM_CLOSE:
begin
EndDialog(hDlg, 0);
end;
FSM_PROGRESS:
begin
s := ExtractFilename(string(PChar(Pointer(lParam))));
if (s <> PrevFile) and (Idx <= High(Files)) then
begin
Files[Idx] := s;
PrevFile := s;
Inc(Idx);
end;
SetDlgItemText(hDlg, IDC_STCSTATUSWND, PChar(s));
s := Format('%d%% - %s', [wParam, APPNAME]);
SetWindowText(hDlg, PChar(s));
end;
FSM_FINISH:
begin
EnableControls(hDlg, True);
EnableWindow(GetDlgItem(hDlg, IDC_BTNCANCEL), False);
SetDlgItemText(hDlg, IDC_STCSTATUSWND, '');
SetWindowText(hDlg, PChar(APPNAME));
Str(wParam / 1000:0:2, s);
//s := Format('Dauer: %d msec', [WParam]);
Str((FileSize / (wParam / 1000) / 1024 / 1024):0:2, Speed);
SetDlgItemText(hDlg, IDC_STCSTATUSWND, PChar(s + ' sec [' + Speed + ' MB/sec]'));
end;
else
result := false;
end;
end;
begin
InitCommonControls;
DialogBox(hInstance, MAKEINTRESOURCE(100), 0, @dlgfunc);
end.

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