// Created: 10/21/99
// RCS-ID: $Id$
// Copyright: (c) 1999 David Webster
-// Licence: wxWindows license
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
// wxDataFormat
// ----------------------------------------------------------------------------
-wxDataFormat::wxDataFormat()
-{
- m_vType = wxDF_INVALID;
- m_vFormat = 0;
-}
-
-wxDataFormat::wxDataFormat(
- wxDataFormatId vType
-)
+wxString wxDataFormat::GetId() const
{
- PrepareFormats();
- SetType(vType);
-}
+ char zBuf[256];
+ wxString sRet;
+
+ ::WinQueryAtomName( ::WinQuerySystemAtomTable()
+ ,m_uFormat
+ ,zBuf
+ ,256
+ );
+ sRet = zBuf;
+ return sRet;
+} // end of wxDataFormat::GetId()
-wxDataFormat::wxDataFormat(
+void wxDataFormat::SetId (
const wxChar* zId
)
{
- PrepareFormats();
- SetId(zId);
-}
+ m_uFormat = ::WinAddAtom( ::WinQuerySystemAtomTable()
+ ,zId
+ );
+} // end of wxDataFormat::SetId
-wxDataFormat::wxDataFormat(
- const wxString& rId
-)
+class CIDataObject
{
- PrepareFormats();
- SetId(rId);
-}
-
-wxDataFormat::wxDataFormat(
- NativeFormat vFormat
+public:
+ CIDataObject(wxDataObject* pDataObject);
+ ~CIDataObject();
+
+ //
+ // Operations on the DRAGITEM struct
+ //
+ bool GetData( const wxDataFormat& rFormat
+ ,char* pzBuffer
+ ,ULONG ulLen
+ );
+ void GetDataHere( const wxDataFormat& rFormat
+ ,char* pzBuffer
+ ,ULONG ulLen
+ );
+ void QueryGetData(const wxDataFormat& rFormat);
+ void SetData( const wxDataFormat& rFormat
+ ,char* pzBuffer
+ );
+private:
+ wxDataObject* m_pDataObject; // pointer to C++ class we belong to
+ DRAGITEM m_vDragItem;
+}; // end of CLASS CIDataObject
+
+bool CIDataObject::GetData (
+ const wxDataFormat& rFormat
+, char* pzBuffer
+, ULONG ulLen
)
{
- PrepareFormats();
- SetId(vFormat);
-}
+ QueryGetData(rFormat);
+ if (rFormat.GetType() == wxDF_INVALID)
+ return FALSE;
-void wxDataFormat::SetType(
- wxDataFormatId vType
-)
-{
- m_vType = vType;
-
- if (m_vType == wxDF_TEXT)
- m_vFormat = 0;
- else
- if (m_vType == wxDF_BITMAP)
- m_vFormat = 0;
- else
- if (m_vType == wxDF_FILENAME)
- m_vFormat = 0;
- else
+ ULONG ulSize = m_pDataObject->GetDataSize(rFormat);
+
+ if (ulSize == 0)
{
- wxFAIL_MSG( wxT("invalid dataformat") );
+ //
+ // It probably means that the method is just not implemented
+ //
+ return FALSE;
+ }
+ if (rFormat.GetType() == wxDF_PRIVATE)
+ {
+ //
+ // For custom formats, put the size with the data - alloc the
+ // space for it
+ //
+ ulSize += sizeof(ULONG);
}
-}
-wxDataFormatId wxDataFormat::GetType() const
-{
- return m_vType;
-}
+ if (ulSize > ulLen) // not enough room to copy
+ return FALSE;
-wxString wxDataFormat::GetId() const
+ //
+ // Copy the data
+ //
+ GetDataHere( rFormat
+ ,pzBuffer
+ ,ulSize
+ );
+ return TRUE;
+} // end of CIDataObject::GetData
+
+void CIDataObject::GetDataHere(
+ const wxDataFormat& rFormat
+, char* pzBuffer
+, ULONG WXUNUSED(ulLen)
+)
{
- wxString sRet(""); // TODO: gdk_atom_name( m_format ) );
- return sRet;
-}
+ m_pDataObject->GetDataHere( rFormat
+ ,(void*)pzBuffer
+ );
+} // end of CIDataObject::GetDataHere
-void wxDataFormat::SetId(
- NativeFormat vFormat
+void CIDataObject::QueryGetData (
+ const wxDataFormat& rFormat
)
{
- m_vFormat = vFormat;
-// TODO:
-/*
- if (m_format == g_textAtom)
- m_type = wxDF_TEXT;
- else
- if (m_format == g_pngAtom)
- m_type = wxDF_BITMAP;
- else
- if (m_format == g_fileAtom)
- m_type = wxDF_FILENAME;
- else
- m_type = wxDF_PRIVATE;
-*/
-}
+ m_pDataObject->IsSupportedFormat(rFormat);
+} // end of CIDataObject::QueryGetData
-void wxDataFormat::SetId(
- const wxChar* zId
+void CIDataObject::SetData (
+ const wxDataFormat& rFormat
+, char* pzBuffer
)
{
- wxString tmp(zId);
+ ULONG ulSize;
- m_vType = wxDF_PRIVATE;
- m_vFormat = 0;// TODO: get the format gdk_atom_intern( wxMBSTRINGCAST tmp.mbc_str(), FALSE );
-}
+ switch (rFormat.GetType())
+ {
+ case wxDF_TEXT:
+ case wxDF_OEMTEXT:
+ case wxDF_FILENAME:
+ case wxDF_HTML:
+ ulSize = strlen((const char *)pzBuffer);
+ break;
+
+#if wxUSE_UNICODE
+ case wxDF_UNICODETEXT:
+ ulSize = ::wcslen((const wchar_t *)pzBuffer);
+ break;
+#endif
-void wxDataFormat::PrepareFormats()
-{
-// TODO:
-/*
- if (!g_textAtom)
- g_textAtom = gdk_atom_intern( "STRING", FALSE );
- if (!g_pngAtom)
- g_pngAtom = gdk_atom_intern( "image/png", FALSE );
- if (!g_fileAtom)
- g_fileAtom = gdk_atom_intern( "file:ALL", FALSE );
-*/
-}
+ case wxDF_BITMAP:
+ case wxDF_METAFILE:
+ case wxDF_ENHMETAFILE:
+ case wxDF_TIFF:
+ case wxDF_DIB:
+ ulSize = 0; // pass via a handle
+ break;
+
+
+ case wxDF_SYLK:
+ case wxDF_DIF:
+ case wxDF_PALETTE:
+ case wxDF_PENDATA:
+ case wxDF_RIFF:
+ case wxDF_WAVE:
+ case wxDF_LOCALE:
+ //PUNT
+ break;
+
+ case wxDF_PRIVATE:
+ size_t* p = (size_t *)pzBuffer;
+
+ ulSize = *p++;
+ pzBuffer = (char*)p;
+ break;
+ }
+ m_pDataObject->SetData( rFormat
+ ,ulSize
+ ,(void*)pzBuffer
+ );
+} // end of CIDataObject::SetData
//-------------------------------------------------------------------------
// wxDataObject
//-------------------------------------------------------------------------
-wxDataObject::wxDataObject()
+wxDataObject::wxDataObject ()
{
-}
+ m_pDataObject = new DRAGITEM;
+} // end of wxDataObject::wxDataObject
-bool wxDataObject::IsSupportedFormat(
- const wxDataFormat& rFormat
-, Direction vDir
-) const
+wxDataObject::~wxDataObject ()
{
- size_t nFormatCount = GetFormatCount(vDir);
-
- if (nFormatCount == 1)
- {
- return rFormat == GetPreferredFormat();
- }
- else
- {
- wxDataFormat* pFormats = new wxDataFormat[nFormatCount];
- GetAllFormats( pFormats
- ,vDir
- );
-
- size_t n;
-
- for (n = 0; n < nFormatCount; n++)
- {
- if (pFormats[n] == rFormat)
- break;
- }
-
- delete [] pFormats;
-
- // found?
- return n < nFormatCount;
- }
-}
+ delete m_pDataObject;
+} // end of wxDataObject::~wxDataObject
// ----------------------------------------------------------------------------
// wxFileDataObject
projects / wxWidgets.git / blobdiff