C4ComponentHost.h

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/*
 * OpenClonk, http://www.openclonk.org
 *
 * Copyright (c) 1998-2000, Matthes Bender
 * Copyright (c) 2001-2009, RedWolf Design GmbH, http://www.clonk.de/
 * Copyright (c) 2009-2016, The OpenClonk Team and contributors
 *
 * Distributed under the terms of the ISC license; see accompanying file
 * "COPYING" for details.
 *
 * "Clonk" is a registered trademark of Matthes Bender, used with permission.
 * See accompanying file "TRADEMARK" for details.
 *
 * To redistribute this file separately, substitute the full license texts
 * for the above references.
 */
 
/* Holds a single text file component from a group */
 
#ifndef INC_C4ComponentHost
#define INC_C4ComponentHost
 
class C4ComponentHost
{
public:
    C4ComponentHost() = default;
    virtual ~C4ComponentHost() { Clear(); }
    const char *GetFilePath() const { return FilePath.getData(); }
    void Clear() { Data.Clear(); OnLoad(); }
    const char *GetData() const { return Data.getData(); }
    const StdStrBuf & GetDataBuf() const { return Data; }
    size_t GetDataSize() const { return Data.getLength(); }
    bool Load(C4Group &hGroup, const char *szFilename, const char *szLanguage=nullptr);
    bool Load(C4GroupSet &hGroupSet, const char *szFilename, const char *szLanguage=nullptr);
    bool GetLanguageString(const char *szLanguage, StdStrBuf &rTarget);
protected:
    // The component host's Data has changed. This callback can be used by
    // derived classes to reload internal structures.
    virtual void OnLoad() {}
 
    StdCopyStrBuf Data;
    StdCopyStrBuf Filename;
    StdCopyStrBuf FilePath;
    void CopyFilePathFromGroup(const C4Group &hGroup);
    void FinishLoad(const StdStrBuf &, C4Group &hGroup);
};
 
#endif