ciderpress/app/DiskArchive.h

/*
 * CiderPress
 * Copyright (C) 2007 by faddenSoft, LLC.  All Rights Reserved.
 * See the file LICENSE for distribution terms.
 */
/*
 * Disk image "archive" support.
 */
#ifndef APP_DISKARCHIVE_H
#define APP_DISKARCHIVE_H

#include "GenericArchive.h"
#include "../diskimg/DiskImg.h"

class RenameEntryDialog;


/*
 * One file in a disk image.
 */
class DiskEntry : public GenericEntry {
public:
    DiskEntry(A2File* pFile) : fpFile(pFile)
        {}
    virtual ~DiskEntry(void) {}

    // retrieve thread data
    virtual int ExtractThreadToBuffer(int which, char** ppText, long* pLength,
        CString* pErrMsg) const;
    virtual int ExtractThreadToFile(int which, FILE* outfp, ConvertEOL conv,
        ConvertHighASCII convHA, CString* pErrMsg) const;
    virtual long GetSelectionSerial(void) const { return -1; }  // idea: T/S block number

    virtual bool GetFeatureFlag(Feature feature) const;

    // return the underlying FS format for this file
    virtual DiskImg::FSFormat GetFSFormat(void) const {
        ASSERT(fpFile != nil);
        return fpFile->GetFSFormat();
    }

    A2File* GetA2File(void) const { return fpFile; }
    void SetA2File(A2File* pFile) { fpFile = pFile; }

private:
    DIError CopyData(A2FileDescr* pOpenFile, FILE* outfp, ConvertEOL conv,
        ConvertHighASCII convHA, CString* pMsg) const;

    A2File*     fpFile;
};


/*
 * Disk image add-ons to GenericArchive.
 */
class DiskArchive : public GenericArchive {
public:
    DiskArchive(void) : fpPrimaryDiskFS(nil), fIsReadOnly(false),
        fpAddDataHead(nil), fpAddDataTail(nil)
        {}
    virtual ~DiskArchive(void) { (void) Close(); }

    /* pass this as the "options" value to the New() function */
    typedef struct {
        DiskImgLib::DiskImg::FSFormat       format;
        DiskImgLib::DiskImg::SectorOrder    sectorOrder;
    } NewOptionsBase;
    typedef union {
        NewOptionsBase  base;

        struct {
            NewOptionsBase  base;
            long            numBlocks;
        } blank;
        struct {
            NewOptionsBase  base;
            const WCHAR*    volName;
            long            numBlocks;
        } prodos;
        struct {
            NewOptionsBase  base;
            const WCHAR*    volName;
            long            numBlocks;
        } pascalfs;     // "pascal" is reserved token in MSVC++
        struct {
            NewOptionsBase  base;
            const WCHAR*    volName;
            long            numBlocks;
        } hfs;
        struct {
            NewOptionsBase  base;
            int             volumeNum;
            long            numTracks;
            int             numSectors;
            bool            allocDOSTracks;
        } dos;
    } NewOptions;

    // One-time initialization; returns an error string.
    static CString AppInit(void);
    // one-time cleanup at app shutdown time
    static void AppCleanup(void);

    virtual OpenResult Open(const WCHAR* filename, bool readOnly, CString* pErrMsg);
    virtual CString New(const WCHAR* filename, const void* options);
    virtual CString Flush(void);
    virtual CString Reload(void);
    virtual bool IsReadOnly(void) const { return fIsReadOnly; };
    virtual bool IsModified(void) const;
    virtual void GetDescription(CString* pStr) const;
    virtual bool BulkAdd(ActionProgressDialog* pActionProgress,
        const AddFilesDialog* pAddOpts);
    virtual bool AddDisk(ActionProgressDialog* pActionProgress,
        const AddFilesDialog* pAddOpts)
        { ASSERT(false); return false; }
    virtual bool CreateSubdir(CWnd* pMsgWnd, GenericEntry* pParentEntry,
        const WCHAR* newName);
    virtual bool TestSelection(CWnd* pMsgWnd, SelectionSet* pSelSet)
        { ASSERT(false); return false; }
    virtual bool DeleteSelection(CWnd* pMsgWnd, SelectionSet* pSelSet);
    virtual bool RenameSelection(CWnd* pMsgWnd, SelectionSet* pSelSet);
    virtual CString TestPathName(const GenericEntry* pGenericEntry,
        const CString& basePath, const CString& newName, char newFssep) const;
    virtual bool RenameVolume(CWnd* pMsgWnd, DiskFS* pDiskFS,
        const WCHAR* newName);
    virtual CString TestVolumeName(const DiskFS* pDiskFS,
        const WCHAR* newName) const;
    virtual bool RecompressSelection(CWnd* pMsgWnd, SelectionSet* pSelSet,
        const RecompressOptionsDialog* pRecompOpts)
        { ASSERT(false); return false; }
    virtual bool GetComment(CWnd* pMsgWnd, const GenericEntry* pEntry,
        CString* pStr)
        { ASSERT(false); return false; }
    virtual bool SetComment(CWnd* pMsgWnd, GenericEntry* pEntry,
        const CString& str)
        { ASSERT(false); return false; }
    virtual bool DeleteComment(CWnd* pMsgWnd, GenericEntry* pEntry)
        { ASSERT(false); return false; }
    virtual bool SetProps(CWnd* pMsgWnd, GenericEntry* pEntry,
        const FileProps* pProps);
    virtual void PreferencesChanged(void);
    virtual long GetCapability(Capability cap);
    virtual XferStatus XferSelection(CWnd* pMsgWnd, SelectionSet* pSelSet,
        ActionProgressDialog* pActionProgress, const XferFileOptions* pXferOpts);

    const DiskImg* GetDiskImg(void) const { return &fDiskImg; }
    DiskFS* GetDiskFS(void) const { return fpPrimaryDiskFS; }

    /* internal function, used by DiskArchive and DiskEntry */
    static bool ProgressCallback(DiskImgLib::A2FileDescr* pFile,
        DiskImgLib::di_off_t max, DiskImgLib::di_off_t current, void* state);

private:
    virtual CString Close(void);
    virtual void XferPrepare(const XferFileOptions* pXferOpts);
    virtual CString XferFile(FileDetails* pDetails, BYTE** pDataBuf,
        long dataLen, BYTE** pRsrcBuf, long rsrcLen);
    virtual void XferAbort(CWnd* pMsgWnd);
    virtual void XferFinish(CWnd* pMsgWnd);

    /* DiskImg callback, used during initial scan of volume */
    static bool ScanProgressCallback(void* cookie, const char* str,
        int count);


    /*
     * Internal class used to keep track of files we're adding.
     */
    class FileAddData {
    public:
        FileAddData(const FileDetails* pDetails, char* fsNormalPath) {
            fDetails = *pDetails;

            fFSNormalPath = fsNormalPath;
            fpOtherFork = nil;
            fpNext = nil;
        }
        virtual ~FileAddData(void) {}

        FileAddData* GetNext(void) const { return fpNext; }
        void SetNext(FileAddData* pNext) { fpNext = pNext; }
        FileAddData* GetOtherFork(void) const { return fpOtherFork; }
        void SetOtherFork(FileAddData* pData) { fpOtherFork = pData; }

        const FileDetails* GetDetails(void) const { return &fDetails; }

        /*
         * Get the "FS-normal" path, i.e. exactly what we want to appear
         * on the disk image.  This has the result of any conversions, so
         * we need to store it as a narrow string.
         */
        const char* GetFSNormalPath(void) const { return fFSNormalPath; }

    private:
        // Three filenames stored inside FileDetails:
        //  fDetails.origName -- the name of the Windows file
        //  fDetails.storageName -- origName with type-preservation goodies
        //    stripped out
        //  fFSNormalPath -- the FS-normalized version of "storageName", i.e.
        //    the name as it will appear on the Apple II disk image

        FileDetails     fDetails;
        CStringA        fFSNormalPath;

        FileAddData*    fpOtherFork;
        FileAddData*    fpNext;
    };

    virtual ArchiveKind GetArchiveKind(void) { return kArchiveDiskImage; }
    virtual NuError DoAddFile(const AddFilesDialog* pAddOpts,
        FileDetails* pDetails);
    int InternalReload(CWnd* pMsgWnd);

    static int CompareDisplayNamesDesc(const void* ventry1, const void* ventry2);

    int LoadContents(void);
    int LoadDiskFSContents(DiskFS* pDiskFS, const WCHAR* volName);
    void DowncaseSubstring(CString* pStr, int startPos, int endPos,
        bool prevWasSpace);
    static void DebugMsgHandler(const char* file, int line, const char* msg);

    NuResult HandleReplaceExisting(const A2File* pExisting,
        FileDetails* pDetails);
    CString ProcessFileAddData(DiskFS* pDiskFS, int addOptsConvEOL);
    CString LoadFile(const WCHAR* pathName, BYTE** pBuf, long* pLen,
        GenericEntry::ConvertEOL conv, GenericEntry::ConvertHighASCII convHA) const;
    DIError AddForksToDisk(DiskFS* pDiskFS, const DiskFS::CreateParms* pParms,
        const BYTE* dataBuf, long dataLen,
        const BYTE* rsrcBuf, long rsrcLen) const;
    void AddToAddDataList(FileAddData* pData);
    void FreeAddDataList(void);
    void ConvertFDToCP(const FileDetails* pDetails,
        DiskFS::CreateParms* pCreateParms);

    bool SetRenameFields(CWnd* pMsgWnd, DiskEntry* pEntry,
        RenameEntryDialog* pDialog);

    DiskImg         fDiskImg;           // DiskImg object for entire disk
    DiskFS*         fpPrimaryDiskFS;    // outermost DiskFS
    bool            fIsReadOnly;

    /* active state while adding files */
    FileAddData*    fpAddDataHead;
    FileAddData*    fpAddDataTail;
    bool            fOverwriteExisting;
    bool            fOverwriteNoAsk;

    /* state during xfer */
    //CString           fXferStoragePrefix;
    DiskFS*         fpXferTargetFS;
};

#endif /*APP_DISKARCHIVE_H*/