///////////////////////////////////////////////////////////////////////////////
-// Name: dataobj.h
-// Purpose: declaration of the wxDataObject class
+// Name: gtk/dataobj.h
+// Purpose: declaration of the wxDataObject
// Author: Robert Roebling
// RCS-ID: $Id$
-// Copyright: (c) 1998 Vadim Zeitlin, Robert Roebling
+// Copyright: (c) 1998, 1999 Vadim Zeitlin, Robert Roebling
// Licence: wxWindows license
///////////////////////////////////////////////////////////////////////////////
-#ifndef __GTKDATAOBJECTH__
-#define __GTKDATAOBJECTH__
+#ifndef _WX_GTK_DATAOBJ_H_
+#define _WX_GTK_DATAOBJ_H_
#ifdef __GNUG__
-#pragma interface
+ #pragma interface "dataobj.h"
#endif
-#include "wx/defs.h"
-#include "wx/object.h"
-#include "wx/string.h"
-#include "wx/bitmap.h"
+// ----------------------------------------------------------------------------
+// wxDataObject is the same as wxDataObjectBase under wxGTK
+// ----------------------------------------------------------------------------
-//-------------------------------------------------------------------------
-// classes
-//-------------------------------------------------------------------------
-
-class wxDataFormat;
-class wxDataBroker;
-class wxDataObject;
-class wxTextDataObject;
-class wxBitmapDataObject;
-class wxPrivateDataObject;
-class wxFileDataObject;
-
-//-------------------------------------------------------------------------
-// wxDataFormat (internal)
-//-------------------------------------------------------------------------
-
-class wxDataFormat : public wxObject
-{
-public:
- wxDataFormat();
- wxDataFormat( wxDataFormatId type );
- wxDataFormat( const wxString &id );
- wxDataFormat( const wxChar *id );
- wxDataFormat( const wxDataFormat &format );
- wxDataFormat( const GdkAtom atom );
-
- void SetType( wxDataFormatId type );
- wxDataFormatId GetType() const;
-
- /* the string Id identifies the format of clipboard or DnD data. a word
- * processor would e.g. add a wxTextDataObject and a wxPrivateDataObject
- * to the clipboard - the latter with the Id "application/wxword", an
- * image manipulation program would put a wxBitmapDataObject and a
- * wxPrivateDataObject to the clipboard - the latter with "image/png". */
-
- wxString GetId() const;
- void SetId( const wxChar *id );
-
- GdkAtom GetAtom();
- void SetAtom(GdkAtom atom) { m_hasAtom = TRUE; m_atom = atom; }
-
- // implicit conversion to wxDataFormatId
- operator wxDataFormatId() const { return m_type; }
-
- bool operator==(wxDataFormatId type) const { return m_type == type; }
- bool operator!=(wxDataFormatId type) const { return m_type != type; }
-
-private:
- wxDataFormatId m_type;
- wxString m_id;
- bool m_hasAtom;
- GdkAtom m_atom;
-
- void PrepareFormats();
-
-private:
- DECLARE_CLASS( wxDataFormat )
-};
-
-//-------------------------------------------------------------------------
-// wxDataBroker (internal)
-//-------------------------------------------------------------------------
-
-class wxDataBroker : public wxObject
-{
-public:
- /* constructor */
- wxDataBroker();
-
- /* add data object */
- void Add( wxDataObject *dataObject, bool preferred = FALSE );
-
-private:
- /* OLE implementation, the methods don't need to be overridden */
-
- /* get number of supported formats */
- virtual size_t GetFormatCount() const;
-
- /* return nth supported format */
- virtual wxDataFormat &GetNthFormat( size_t nth ) const;
-
- /* return preferrd/best supported format */
- virtual wxDataFormatId GetPreferredFormat() const;
-
- /* search through m_dataObjects, return TRUE if found */
- virtual bool IsSupportedFormat( wxDataFormat &format ) const;
-
- /* search through m_dataObjects and call child's GetSize() */
- virtual size_t GetSize( wxDataFormat& format ) const;
-
- /* search through m_dataObjects and call child's WriteData(dest) */
- virtual void WriteData( wxDataFormat& format, void *dest ) const;
-
-public:
- /* implementation */
- wxList m_dataObjects;
- size_t m_preferred;
-
-private:
- DECLARE_CLASS( wxDataBroker )
-};
-
-//----------------------------------------------------------------------------
-// wxDataObject to be placed in wxDataBroker
-//----------------------------------------------------------------------------
-
-class wxDataObject : public wxObject
+class wxDataObject : public wxDataObjectBase
{
public:
- /* constructor */
wxDataObject();
- /* destructor */
- ~wxDataObject();
-
- /* write data to dest */
- virtual void WriteData( void *dest ) const = 0;
-
- /* get size of data */
- virtual size_t GetSize() const = 0;
-
-public:
- /* implementation */
- wxDataFormat m_format;
-
- wxDataFormat &GetFormat();
-
- wxDataFormatId GetFormatType() const;
- wxString GetFormatId() const;
- GdkAtom GetFormatAtom() const;
-
-private:
- DECLARE_DYNAMIC_CLASS( wxDataObject )
-};
-
-//----------------------------------------------------------------------------
-// wxTextDataObject is a specialization of wxDataObject for text data
-//----------------------------------------------------------------------------
-
-class wxTextDataObject : public wxDataObject
-{
-public:
- /* default constructor. call SetText() later or override
- WriteData() and GetSize() for working on-demand */
- wxTextDataObject();
-
- /* constructor */
- wxTextDataObject( const wxString& data );
-
- /* set current text data */
- void SetText( const wxString& data );
-
- /* get current text data */
- wxString GetText() const;
-
- /* by default calls WriteString() with string set by constructor or
- by SetText(). can be overridden for working on-demand */
- virtual void WriteData( void *dest ) const;
-
- /* by default, returns length of string as set by constructor or
- by SetText(). can be overridden for working on-demand */
- virtual size_t GetSize() const;
-
- /* write string to dest */
- void WriteString( const wxString &str, void *dest ) const;
-
-public:
- /* implementation */
- wxString m_data;
-
-private:
- DECLARE_DYNAMIC_CLASS( wxTextDataObject )
-};
-
-//----------------------------------------------------------------------------
-// wxFileDataObject is a specialization of wxDataObject for file names
-//----------------------------------------------------------------------------
-
-class wxFileDataObject : public wxDataObject
-{
-public:
- /* default constructor */
- wxFileDataObject();
-
- /* add file name to list */
- void AddFile( const wxString &file );
-
- /* get all filename as one string. each file name is 0 terminated,
- the list is double zero terminated */
- wxString GetFiles() const;
-
- /* write list of filenames */
- virtual void WriteData( void *dest ) const;
-
- /* return length of list of filenames */
- virtual size_t GetSize() const;
-
-public:
- /* implementation */
- wxString m_files;
-
-private:
- DECLARE_DYNAMIC_CLASS( wxFileDataObject )
-};
-
-//----------------------------------------------------------------------------
-// wxBitmapDataObject is a specialization of wxDataObject for bitmaps
-//----------------------------------------------------------------------------
-
-class wxBitmapDataObject : public wxDataObject
-{
-public:
- /* see wxTextDataObject for explanation */
- wxBitmapDataObject();
- wxBitmapDataObject( const wxBitmap& bitmap );
- ~wxBitmapDataObject();
-
- void SetBitmap( const wxBitmap &bitmap );
- wxBitmap GetBitmap() const;
-
- virtual void WriteData( void *dest ) const;
- virtual size_t GetSize() const;
- void *GetData() const { return (void*)m_pngData; }
-
- void WriteBitmap( const wxBitmap &bitmap, void *dest ) const;
-
- void SetPngData( const char *pngData, size_t pngSize );
-
-private:
- wxBitmap m_bitmap;
- size_t m_pngSize;
- char *m_pngData;
-
- void DoConvertToPng();
-
-private:
- DECLARE_DYNAMIC_CLASS( wxBitmapDataObject );
+ virtual bool IsSupportedFormat( const wxDataFormat& format, Direction dir = Get ) const;
};
-#endif
- //__GTKDNDH__
+#endif // _WX_GTK_DATAOBJ_H_
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