xap_Strings.h

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/* AbiSource Application Framework
 * Copyright (C) 1998 AbiSource, Inc.
 * Copyright (C) 2009 Hubert Figuiere
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */

#ifndef XAP_STRINGS_H
#define XAP_STRINGS_H

#include <map>
#include <string>

/* pre-emptive dismissal; ut_types.h is needed by just about everything,
 * so even if it's commented out in-file that's still a lot of work for
 * the preprocessor to do...
 */
#ifndef UT_TYPES_H
#include "ut_types.h"
#endif
#include "ut_xml.h"
#include "ut_vector.h"
#include "ut_string.h"
#include "ut_string_class.h"

class XAP_App;

// build a table of XAP ID values

#define dcl(id,s)                   XAP_STRING_ID_##id,

typedef enum _XAP_String_Id_Enum
{
    XAP_STRING_ID__FIRST__          = 0,    /* must be first */
#include "xap_String_Id.h"
    XAP_STRING_ID__LAST__                   /* must be last */
} XAP_String_Id_Enum;

#undef dcl

// Both XAP_ and AP_ enum sets fold into XAP_String_Id

typedef UT_uint32           XAP_String_Id;

// base class provides interface regardless of how we got the strings

class ABI_EXPORT XAP_StringSet
{
public:
    XAP_StringSet(XAP_App * pApp, const gchar * szLanguageName);
    virtual ~XAP_StringSet(void);

    const gchar *           getLanguageName(void) const;

    virtual const gchar *   getValue(XAP_String_Id id) const = 0;

    bool getValue(XAP_String_Id id, const char * inEncoding, UT_String &s) const;
    bool getValueUTF8(XAP_String_Id id, std::string &s) const;
    bool getValueUTF8(XAP_String_Id id, UT_UTF8String &s) const;

    void setEncoding(const char * inEndcoding);
    const char * getEncoding() const;

protected:
    XAP_App *                   m_pApp;
    const gchar *           m_szLanguageName;

 private:
    UT_String m_encoding ;
};

// a sub-class to wrap the compiled-in (english) strings

class ABI_EXPORT XAP_BuiltinStringSet : public XAP_StringSet
{
public:
    XAP_BuiltinStringSet(XAP_App * pApp, const gchar * szLanguageName);
    virtual ~XAP_BuiltinStringSet(void);

    virtual const gchar *   getValue(XAP_String_Id id) const;

private:
    const gchar **          m_arrayXAP;
};

// a sub-class to deal with disk-based string sets (translations)

class ABI_EXPORT XAP_DiskStringSet : public XAP_StringSet, public UT_XML::Listener
{
public:
    XAP_DiskStringSet(XAP_App * pApp);
    virtual ~XAP_DiskStringSet(void);

    virtual bool                setValue(XAP_String_Id id, const gchar * szString);
    virtual bool                setValue(const gchar * szId, const gchar * szString);
    virtual const gchar *   getValue(XAP_String_Id id) const;
    virtual bool                loadStringsFromDisk(const char * szFilename);

    bool                        setLanguage(const gchar * szLanguageName);
    void                        setFallbackStringSet(XAP_StringSet * pFallback);

public:
    /* Implementation of UT_XML::Listener
     */
    void                    startElement(const gchar *name, const gchar **atts);
    void                    endElement(const gchar *name);
    void                    charData(const gchar *s, int len);

protected:
    XAP_StringSet *             m_pFallbackStringSet;

private:
    UT_GenericVector<gchar*>    m_vecStringsXAP;
    std::map<std::string, UT_uint32>    m_hash;

    struct
    {
        bool                m_parserStatus;
    } m_parserState;
};

#endif /* XAP_STRINGS_H */