a8e24848f6
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@37406 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
80 lines
3.0 KiB
C++
80 lines
3.0 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
// Name: msw/ole/dataobj.h
|
|
// Purpose: declaration of the wxDataObject class
|
|
// Author: Vadim Zeitlin
|
|
// Modified by:
|
|
// Created: 10.05.98
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
|
|
// Licence: wxWindows licence
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_MSW_OLE_DATAOBJ_H
|
|
#define _WX_MSW_OLE_DATAOBJ_H
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// forward declarations
|
|
// ----------------------------------------------------------------------------
|
|
|
|
struct IDataObject;
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDataObject is a "smart" and polymorphic piece of data.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxDataObject : public wxDataObjectBase
|
|
{
|
|
public:
|
|
// ctor & dtor
|
|
wxDataObject();
|
|
virtual ~wxDataObject();
|
|
|
|
// retrieve IDataObject interface (for other OLE related classes)
|
|
IDataObject *GetInterface() const { return m_pIDataObject; }
|
|
|
|
// tell the object that it should be now owned by IDataObject - i.e. when
|
|
// it is deleted, it should delete us as well
|
|
void SetAutoDelete();
|
|
|
|
// return true if we support this format in "Get" direction
|
|
bool IsSupportedFormat(const wxDataFormat& format) const
|
|
{ return wxDataObjectBase::IsSupported(format, Get); }
|
|
|
|
// if this method returns false, this wxDataObject will be copied to
|
|
// the clipboard with its size prepended to it, which is compatible with
|
|
// older wx versions
|
|
//
|
|
// if returns true, then this wxDataObject will be copied to the clipboard
|
|
// without any additional information and ::HeapSize() function will be used
|
|
// to get the size of that data
|
|
virtual bool NeedsVerbatimData(const wxDataFormat& WXUNUSED(format)) const
|
|
{
|
|
// return false from here only for compatibility with earlier wx versions
|
|
return true;
|
|
}
|
|
|
|
// function to return symbolic name of clipboard format (for debug messages)
|
|
#ifdef __WXDEBUG__
|
|
static const wxChar *GetFormatName(wxDataFormat format);
|
|
|
|
#define wxGetFormatName(format) wxDataObject::GetFormatName(format)
|
|
#else // !Debug
|
|
#define wxGetFormatName(format) _T("")
|
|
#endif // Debug/!Debug
|
|
// they need to be accessed from wxIDataObject, so made them public,
|
|
// or wxIDataObject friend
|
|
public:
|
|
virtual const void* GetSizeFromBuffer( const void* buffer, size_t* size,
|
|
const wxDataFormat& format );
|
|
virtual void* SetSizeInBuffer( void* buffer, size_t size,
|
|
const wxDataFormat& format );
|
|
virtual size_t GetBufferOffset( const wxDataFormat& format );
|
|
|
|
private:
|
|
IDataObject *m_pIDataObject; // pointer to the COM interface
|
|
|
|
DECLARE_NO_COPY_CLASS(wxDataObject)
|
|
};
|
|
|
|
#endif //_WX_MSW_OLE_DATAOBJ_H
|