variant.cpp

来自「A*算法 A*算法 A*算法 A*算法A*算法A*算法」· C++ 代码 · 共 2,112 行 · 第 1/4 页

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/////////////////////////////////////////////////////////////////////////////
// Name:        variant.cpp
// Purpose:     wxVariant class, container for any type
// Author:      Julian Smart
// Modified by:
// Created:     10/09/98
// RCS-ID:      $Id: variant.cpp,v 1.68.2.2 2006/03/07 14:52:22 JS Exp $
// Copyright:   (c)
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "variant.h"
#endif

// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_STD_IOSTREAM
    #if wxUSE_IOSTREAMH
        #include <fstream.h>
    #else
        #include <fstream>
    #endif
#endif

#if defined(__MWERKS__) && __MSL__ >= 0x6000
namespace std {}
using namespace std ;
#endif

#if wxUSE_STREAMS
#include "wx/stream.h"
#include "wx/txtstrm.h"
#endif

#include "wx/string.h"
#include "wx/tokenzr.h"

#include "wx/variant.h"

IMPLEMENT_ABSTRACT_CLASS(wxVariantData, wxObject)

wxVariant WXDLLIMPEXP_BASE wxNullVariant;

/*
 * wxVariantDataList
 */

class WXDLLIMPEXP_BASE wxVariantDataList: public wxVariantData
{
DECLARE_DYNAMIC_CLASS(wxVariantDataList)
public:
    wxVariantDataList() {}
    wxVariantDataList(const wxList& list);
    ~wxVariantDataList();

    wxList& GetValue() const { return (wxList&) m_value; }
    void SetValue(const wxList& value) ;

    virtual void Copy(wxVariantData& data);
    virtual bool Eq(wxVariantData& data) const;
#if wxUSE_STD_IOSTREAM
    virtual bool Write(wxSTD ostream& str) const;
#endif
    virtual bool Write(wxString& str) const;
#if wxUSE_STD_IOSTREAM
    virtual bool Read(wxSTD istream& str);
#endif
    virtual bool Read(wxString& str);
    virtual wxString GetType() const { return wxT("list"); };

    void Clear();

protected:
    wxList  m_value;
};

IMPLEMENT_DYNAMIC_CLASS(wxVariantDataList, wxVariantData)

wxVariantDataList::wxVariantDataList(const wxList& list)
{
    SetValue(list);
}

wxVariantDataList::~wxVariantDataList()
{
    Clear();
}

void wxVariantDataList::SetValue(const wxList& value)
{
    Clear();
    wxList::compatibility_iterator node = value.GetFirst();
    while (node)
    {
        wxVariant* var = (wxVariant*) node->GetData();
        m_value.Append(new wxVariant(*var));
        node = node->GetNext();
    }
}

void wxVariantDataList::Clear()
{
    wxList::compatibility_iterator node = m_value.GetFirst();
    while (node)
    {
        wxVariant* var = (wxVariant*) node->GetData();
        delete var;
        node = node->GetNext();
    }
    m_value.Clear();
}

void wxVariantDataList::Copy(wxVariantData& data)
{
    wxASSERT_MSG( (data.GetType() == wxT("list")), wxT("wxVariantDataList::Copy: Can't copy to this type of data") );

    wxVariantDataList& listData = (wxVariantDataList&) data;

    listData.Clear();
    wxList::compatibility_iterator node = m_value.GetFirst();
    while (node)
    {
        wxVariant* var = (wxVariant*) node->GetData();
        listData.m_value.Append(new wxVariant(*var));
        node = node->GetNext();
    }
}

bool wxVariantDataList::Eq(wxVariantData& data) const
{
    wxASSERT_MSG( (data.GetType() == wxT("list")), wxT("wxVariantDataList::Eq: argument mismatch") );

    wxVariantDataList& listData = (wxVariantDataList&) data;
    wxList::compatibility_iterator node1 = m_value.GetFirst();
    wxList::compatibility_iterator node2 = listData.GetValue().GetFirst();
    while (node1 && node2)
    {
        wxVariant* var1 = (wxVariant*) node1->GetData();
        wxVariant* var2 = (wxVariant*) node2->GetData();
        if ((*var1) != (*var2))
            return false;
        node1 = node1->GetNext();
        node2 = node2->GetNext();
    }
    if (node1 || node2) return false;
    return true;
}

#if wxUSE_STD_IOSTREAM
bool wxVariantDataList::Write(wxSTD ostream& str) const
{
    wxString s;
    Write(s);
    str << (const char*) s.mb_str();
    return true;
}
#endif

bool wxVariantDataList::Write(wxString& str) const
{
    str = wxEmptyString;
    wxList::compatibility_iterator node = m_value.GetFirst();
    while (node)
    {
        wxVariant* var = (wxVariant*) node->GetData();
        if (node != m_value.GetFirst())
          str += wxT(" ");
        wxString str1;
        str += var->MakeString();
        node = node->GetNext();
    }

    return true;
}

#if wxUSE_STD_IOSTREAM
bool wxVariantDataList::Read(wxSTD istream& WXUNUSED(str))
{
    wxFAIL_MSG(wxT("Unimplemented"));
    // TODO
    return false;
}
#endif

bool wxVariantDataList::Read(wxString& WXUNUSED(str))
{
    wxFAIL_MSG(wxT("Unimplemented"));
    // TODO
    return false;
}
#if WXWIN_COMPATIBILITY_2_4

/*
 * wxVariantDataStringList
 */

class WXDLLIMPEXP_BASE wxVariantDataStringList: public wxVariantData
{
DECLARE_DYNAMIC_CLASS(wxVariantDataStringList)
public:
    wxVariantDataStringList() {}
    wxVariantDataStringList(const wxStringList& list) { m_value = list; }

    wxStringList& GetValue() const { return (wxStringList&) m_value; }
    void SetValue(const wxStringList& value);

    virtual void Copy(wxVariantData& data);
    virtual bool Eq(wxVariantData& data) const;
#if wxUSE_STD_IOSTREAM
    virtual bool Write(wxSTD ostream& str) const;
#endif
    virtual bool Write(wxString& str) const;
#if wxUSE_STD_IOSTREAM
    virtual bool Read(wxSTD istream& str);
#endif
    virtual bool Read(wxString& str);
    virtual wxString GetType() const { return wxT("stringlist"); };

protected:
    wxStringList  m_value;
};

IMPLEMENT_DYNAMIC_CLASS(wxVariantDataStringList, wxVariantData)

void wxVariantDataStringList::SetValue(const wxStringList& value)
{
    m_value = value;
}

void wxVariantDataStringList::Copy(wxVariantData& data)
{
    wxASSERT_MSG( (data.GetType() == wxT("stringlist")), wxT("wxVariantDataStringList::Copy: Can't copy to this type of data") );

    wxVariantDataStringList& listData = (wxVariantDataStringList&) data;

    listData.m_value = m_value ;
}

bool wxVariantDataStringList::Eq(wxVariantData& data) const
{
    wxASSERT_MSG( (data.GetType() == wxT("stringlist")), wxT("wxVariantDataStringList::Eq: argument mismatch") );

    wxVariantDataStringList& listData = (wxVariantDataStringList&) data;
    wxStringList::compatibility_iterator node1 = m_value.GetFirst();
    wxStringList::compatibility_iterator node2 = listData.GetValue().GetFirst();
    while (node1 && node2)
    {
        wxString str1 ( node1->GetData() );
        wxString str2 ( node2->GetData() );
        if (str1 != str2)
            return false;
        node1 = node1->GetNext();
        node2 = node2->GetNext();
    }
    if (node1 || node2) return false;
    return true;
}

#if wxUSE_STD_IOSTREAM
bool wxVariantDataStringList::Write(wxSTD ostream& str) const
{
    wxString s;
    Write(s);
    str << (const char*) s.mb_str();
    return true;
}
#endif

bool wxVariantDataStringList::Write(wxString& str) const
{
    str.Empty();
    wxStringList::compatibility_iterator node = m_value.GetFirst();
    while (node)
    {
        const wxChar* s = node->GetData();
        if (node != m_value.GetFirst())
          str += wxT(" ");
        str += s;
        node = node->GetNext();
    }

    return true;
}

#if wxUSE_STD_IOSTREAM
bool wxVariantDataStringList::Read(wxSTD istream& WXUNUSED(str))
{
    wxFAIL_MSG(wxT("Unimplemented"));
    // TODO
    return false;
}
#endif

bool wxVariantDataStringList::Read(wxString& WXUNUSED(str))
{
    wxFAIL_MSG(wxT("Unimplemented"));
    // TODO
    return false;
}

#endif //2.4 compat

/*
 * wxVariantDataLong
 */

class WXDLLIMPEXP_BASE wxVariantDataLong: public wxVariantData
{
DECLARE_DYNAMIC_CLASS(wxVariantDataLong)
public:
    wxVariantDataLong() { m_value = 0; }
    wxVariantDataLong(long value) { m_value = value; }

    inline long GetValue() const { return m_value; }
    inline void SetValue(long value) { m_value = value; }

    virtual void Copy(wxVariantData& data);
    virtual bool Eq(wxVariantData& data) const;

    virtual bool Read(wxString& str);
    virtual bool Write(wxString& str) const;
#if wxUSE_STD_IOSTREAM
    virtual bool Read(wxSTD istream& str);
    virtual bool Write(wxSTD ostream& str) const;
#endif
#if wxUSE_STREAMS
    virtual bool Read(wxInputStream& str);
    virtual bool Write(wxOutputStream &str) const;
#endif // wxUSE_STREAMS

    virtual wxString GetType() const { return wxT("long"); };

protected:
    long m_value;
};

IMPLEMENT_DYNAMIC_CLASS(wxVariantDataLong, wxVariantData)

void wxVariantDataLong::Copy(wxVariantData& data)
{
    wxASSERT_MSG( (data.GetType() == wxT("long")), wxT("wxVariantDataLong::Copy: Can't copy to this type of data") );

    wxVariantDataLong& otherData = (wxVariantDataLong&) data;

    otherData.m_value = m_value;
}

bool wxVariantDataLong::Eq(wxVariantData& data) const
{
    wxASSERT_MSG( (data.GetType() == wxT("long")), wxT("wxVariantDataLong::Eq: argument mismatch") );

    wxVariantDataLong& otherData = (wxVariantDataLong&) data;

    return (otherData.m_value == m_value);
}

#if wxUSE_STD_IOSTREAM
bool wxVariantDataLong::Write(wxSTD ostream& str) const
{
    wxString s;
    Write(s);
    str << (const char*) s.mb_str();
    return true;
}
#endif

bool wxVariantDataLong::Write(wxString& str) const
{
    str.Printf(wxT("%ld"), m_value);
    return true;
}

#if wxUSE_STD_IOSTREAM
bool wxVariantDataLong::Read(wxSTD istream& str)
{
    str >> m_value;
    return true;
}
#endif

#if wxUSE_STREAMS
bool wxVariantDataLong::Write(wxOutputStream& str) const
{
    wxTextOutputStream s(str);

    s.Write32((size_t)m_value);
    return true;
}

bool wxVariantDataLong::Read(wxInputStream& str)
{
   wxTextInputStream s(str);
   m_value = s.Read32();
   return true;
}
#endif // wxUSE_STREAMS

bool wxVariantDataLong::Read(wxString& str)
{
    m_value = wxAtol((const wxChar*) str);
    return true;
}

/*
 * wxVariantDataReal
 */

class WXDLLIMPEXP_BASE wxVariantDataReal: public wxVariantData
{
DECLARE_DYNAMIC_CLASS(wxVariantDataReal)
public:
    wxVariantDataReal() { m_value = 0.0; }
    wxVariantDataReal(double value) { m_value = value; }

    inline double GetValue() const { return m_value; }
    inline void SetValue(double value) { m_value = value; }

    virtual void Copy(wxVariantData& data);
    virtual bool Eq(wxVariantData& data) const;
    virtual bool Read(wxString& str);
#if wxUSE_STD_IOSTREAM
    virtual bool Write(wxSTD ostream& str) const;
#endif
    virtual bool Write(wxString& str) const;
#if wxUSE_STD_IOSTREAM
    virtual bool Read(wxSTD istream& str);
#endif
#if wxUSE_STREAMS
    virtual bool Read(wxInputStream& str);
    virtual bool Write(wxOutputStream &str) const;
#endif // wxUSE_STREAMS
    virtual wxString GetType() const { return wxT("double"); };

protected:
    double m_value;
};

IMPLEMENT_DYNAMIC_CLASS(wxVariantDataReal, wxVariantData)

void wxVariantDataReal::Copy(wxVariantData& data)
{
    wxASSERT_MSG( (data.GetType() == wxT("double")), wxT("wxVariantDataReal::Copy: Can't copy to this type of data") );

    wxVariantDataReal& otherData = (wxVariantDataReal&) data;

    otherData.m_value = m_value;
}

bool wxVariantDataReal::Eq(wxVariantData& data) const
{
    wxASSERT_MSG( (data.GetType() == wxT("double")), wxT("wxVariantDataReal::Eq: argument mismatch") );

    wxVariantDataReal& otherData = (wxVariantDataReal&) data;

    return (otherData.m_value == m_value);
}

#if wxUSE_STD_IOSTREAM
bool wxVariantDataReal::Write(wxSTD ostream& str) const
{
    wxString s;
    Write(s);
    str << (const char*) s.mb_str();
    return true;
}
#endif

bool wxVariantDataReal::Write(wxString& str) const
{
    str.Printf(wxT("%.14g"), m_value);
    return true;
}

#if wxUSE_STD_IOSTREAM
bool wxVariantDataReal::Read(wxSTD istream& str)
{
    str >> m_value;
    return true;
}
#endif

#if wxUSE_STREAMS
bool wxVariantDataReal::Write(wxOutputStream& str) const
{
    wxTextOutputStream s(str);
    s.WriteDouble((double)m_value);
    return true;
}

bool wxVariantDataReal::Read(wxInputStream& str)
{
    wxTextInputStream s(str);
    m_value = (float)s.ReadDouble();
    return true;
}
#endif // wxUSE_STREAMS

bool wxVariantDataReal::Read(wxString& str)
{
    m_value = wxAtof((const wxChar*) str);
    return true;
}

#ifdef HAVE_BOOL
/*
 * wxVariantDataBool
 */

class WXDLLIMPEXP_BASE wxVariantDataBool: public wxVariantData
{
DECLARE_DYNAMIC_CLASS(wxVariantDataBool)
public:
    wxVariantDataBool() { m_value = 0; }
    wxVariantDataBool(bool value) { m_value = value; }

    inline bool GetValue() const { return m_value; }
    inline void SetValue(bool value) { m_value = value; }

    virtual void Copy(wxVariantData& data);
    virtual bool Eq(wxVariantData& data) const;
#if wxUSE_STD_IOSTREAM
    virtual bool Write(wxSTD ostream& str) const;
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