#include #include #include #include #include #include #include #include #include #include #define BSIZE 100000L #define S16OFF 3690L static char ver[] = "\0$VER:Offset 1.12 "__AMIGADATE__; extern struct IntuitionBase *IntuitionBase; //+ "class Offset(char *filename, short yset)" /* ---------------------------------- Offset ----------------------------------- Commentaire: */ class Offset { public: Offset(char *filename, short yset) { unsigned long bufsize = BSIZE; buf = 0L; ahand = 0L; if(ahand = Open(filename, MODE_OLDFILE)) { unsigned long free; if(size = GetSize()) { if(size < 1000000L) bufsize = size / 10; if(buf = (short *)AllocVec(bufsize, MEMF_CLEAR|MEMF_PUBLIC)) { if(free = GetFree()) { if(free > size) { strcpy(&edfile[0], filename); strcat(&edfile[0], ".edit"); if(CopyHeader(bufsize)) PlanA(filename, bufsize, yset); } else { Close(ahand); ahand = 0L; PlanB(filename, bufsize, yset); } } else cout << "Can't get free space\n"; } else cout << "No memory for buffer\n"; } else cout << "Can't get file size\n"; } else cout << "Can't open input file " << filename << "\n"; } ~Offset() { if(buf) FreeVec(buf); if(ahand) Close(ahand); if(bhand) Close(bhand); } private: //+ "struct Window *setupWindow(char *name)" struct Window *setupWindow(char *name) { wnd = 0; struct Screen *scr; short width, height, y; if(scr=LockPubScreen((unsigned char *)"FRONTPUBSCREEN")) { width = (short)(scr->WBorLeft + scr->WBorRight); height = (short)(scr->WBorTop + scr->WBorBottom); y = (short)scr->Font->ta_YSize; if(wnd=OpenWindowTags(0L,WA_Left, 10, WA_Top, 10, WA_Width, 30 * y + width, WA_Height, 4 * y + height, WA_RMBTrap, 1, WA_Activate, 1, WA_PubScreen, scr, WA_Title, name, TAG_DONE)) { PrBar = CreateProgBar ( wnd, 2 * y + width/2, 2 * y, 26 * y, y + y/4, 100, PB_BarValue, 0, PB_BorderType, PBBT_RECESSED, PB_TextMode, PBTM_PERCENT, PB_TextPosition, PBTP_CENTRE, PB_TextFont, scr->Font, TAG_DONE ); if(!PrBar) { CloseWindow(wnd); wnd = 0; } } UnlockPubScreen(NULL, scr); } return(wnd); } //- //+ "void freeupWindow(struct Window*)" void freeupWindow(struct Window*) { if(PrBar) FreeProgBar(PrBar); if(wnd) CloseWindow(wnd); } //- //+ "unsigned long GetSize()" unsigned long GetSize() { struct FileInfoBlock *fib; size = 0; if(fib = (struct FileInfoBlock *)AllocVec(sizeof(struct FileInfoBlock), MEMF_CLEAR|MEMF_PUBLIC)) { if(ExamineFH(ahand, fib)) { size = fib->fib_Size; } FreeVec(fib); } return(size); } //- //+ "unsigned long GetFree()" unsigned long GetFree() { BPTR lock; struct InfoData *id; unsigned long f = 0; if(lock = DupLockFromFH(ahand)) { if(id = (struct InfoData *)AllocVec(sizeof(struct InfoData), MEMF_CLEAR|MEMF_PUBLIC)) { if(Info(lock, id)) { f = ((id->id_NumBlocks)-(id->id_NumBlocksUsed))*id->id_BytesPerBlock; } FreeVec(id); } UnLock(lock); } return(f); } //- //+ "BOOL CopyHeader(unsigned long bufsize)" BOOL CopyHeader(unsigned long bufsize) { if(bhand = Open(&edfile[0], MODE_NEWFILE)) { if(bufsize < S16OFF) { unsigned long x; for(x=0;x < S16OFF;x=x+bufsize) { actlen = Read(ahand, buf, bufsize); if(actlen < 0) { cout << "error reading file\n"; return(NULL); } actlen = Write(bhand , buf, actlen); if(actlen < 0) { cout << "error writing file\n"; return(NULL); } } } else { actlen = Read(ahand, buf, S16OFF); if(actlen != S16OFF) { cout << "error reading file\n"; return(NULL); } actlen = Write(bhand , buf, S16OFF); if(actlen != S16OFF) { cout << "error writing file\n"; return(NULL); } } } else { cout << "can't open " << &edfile[0] << "\n"; return(NULL); } return(TRUE); } //- //+ "void PlanA(char *filename, unsigned long bufsize, short yset)" void PlanA(char *filename, unsigned long bufsize, short yset) { unsigned long total=0; Seek(ahand, S16OFF, OFFSET_BEGINNING); Seek(bhand, S16OFF, OFFSET_BEGINNING); if(wnd = setupWindow(filename)) { while(actlen = Read(ahand, buf, bufsize)) { if(actlen < 0) { cout << "error reading file\n"; break; } int x; for(x = 0; x < actlen/2; x++) { buf[x] = (short)((short)buf[x] + (short)yset); } actlen = Write(bhand, buf, actlen); if(actlen < 0) { cout << "error writing file\n"; break; } total = total + actlen; UpdateProgBar ( PrBar, total/((size/100)+1)); } freeupWindow(wnd); } else cout << "can't open window\n"; Close(ahand); ahand = 0; Close(bhand); bhand = 0; if(DeleteFile(filename)) { Rename(&edfile[0], filename); } else cout << "can't delete source file you have now\ntwo file named " << filename << " and " << &edfile[0] << "\n"; } //- //+ "void PlanB(char *filename, unsigned long bufsize, short yset)" void PlanB(char *filename, unsigned long bufsize, short yset) { unsigned long total = 0; if(ahand = Open(filename, MODE_READWRITE)) { if(wnd = setupWindow(filename)) { Seek(ahand, S16OFF, OFFSET_BEGINNING); while(actlen = Read(ahand, buf, bufsize)) { if(actlen < 0) { cout << "error reading file\n"; break; } int x; for(x = 0; x < actlen/2; x++) { buf[x] = (short)((short)buf[x] + (short)yset); } Seek(ahand, - (actlen), OFFSET_CURRENT); actlen = Write(ahand, buf, actlen); if(actlen < 0) { cout << "error writing file\n"; break; } total = total + actlen; UpdateProgBar ( PrBar, total/((size/100)+1)); } freeupWindow(wnd); } else cout << "can't open window\n"; } else cout << "can't open file " << filename << "\n"; } //- protected: short *buf; BPTR ahand; BPTR bhand; PBAR *PrBar; long actlen; unsigned long size; struct Window *wnd; char edfile[255]; }; //- //+ "void main(int argc, char *argv[])" /* ----------------------------------- main ------------------------------------ Commentaire: */ void main(int argc, char *argv[]) { if(argc > 2) { int tmpargc; tmpargc = argc; if(argc & 1) { tmpargc = tmpargc - 1; while(tmpargc) { Offset o(argv[argc-tmpargc], (short)atol(argv[argc-tmpargc+1])); tmpargc = tmpargc - 2; } } else cout << "Wrong number of argument\n"; } else cout << "Usage: Offset filename offset ...\n"; } //-