check for self-assignment in operator=

[wxWidgets.git] / include / wx / gtk / dataobj.h

diff --git a/include/wx/gtk/dataobj.h b/include/wx/gtk/dataobj.h
index 7a0d22c7819e46e4f091313b50cdf1bbd7a2b805..2623777643e3755a400d9a562835a98f55c76611 100644 (file)
--- a/include/wx/gtk/dataobj.h
+++ b/include/wx/gtk/dataobj.h
@@ -1,253 +1,27 @@
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////

-// Name:        dataobj.h
-// Purpose:     declaration of the wxDataObject class
+// Name:        gtk/dataobj.h
+// Purpose:     declaration of the wxDataObject

 // Author:      Robert Roebling
 // RCS-ID:      $Id$
 // Author:      Robert Roebling
 // RCS-ID:      $Id$

-// Copyright:   (c) 1998 Vadim Zeitlin, Robert Roebling
-// Licence:     wxWindows license
+// Copyright:   (c) 1998, 1999 Vadim Zeitlin, Robert Roebling
+// Licence:     wxWindows licence

 ///////////////////////////////////////////////////////////////////////////////
 
 ///////////////////////////////////////////////////////////////////////////////
 

-#ifndef __GTKDATAOBJECTH__
-#define __GTKDATAOBJECTH__
+#ifndef _WX_GTK_DATAOBJ_H_
+#define _WX_GTK_DATAOBJ_H_

 
 

-#ifdef __GNUG__
-#pragma interface
-#endif
+// ----------------------------------------------------------------------------
+// wxDataObject is the same as wxDataObjectBase under wxGTK
+// ----------------------------------------------------------------------------

 
 

-#include "wx/defs.h"
-#include "wx/object.h"
-#include "wx/string.h"
-#include "wx/bitmap.h"
-
-//-------------------------------------------------------------------------
-// classes
-//-------------------------------------------------------------------------
-
-class wxDataFormat;
-class wxDataBroker;
-class wxDataObject;
-class wxTextDataObject;
-class wxBitmapDataObject;
-class wxPrivateDataObject;
-class wxFileDataObject;
-
-//-------------------------------------------------------------------------
-// wxDataFormat
-//-------------------------------------------------------------------------
-
-class wxDataFormat
-{
-public:
-    // the clipboard formats under GDK are GdkAtoms
-    typedef GdkAtom NativeFormat;
-    
-    wxDataFormat();
-    wxDataFormat( wxDataFormatId type );
-    wxDataFormat( const wxString &id );
-    wxDataFormat( const wxChar *id );
-    wxDataFormat( NativeFormat format );
-
-    wxDataFormat& operator=(NativeFormat format)
-        { SetId(format); return *this; }
-    wxDataFormat& operator=(const wxDataFormat& format)
-        { SetId(format); return *this; }
-
-    // comparison (must have both versions)
-    bool operator==(wxDataFormatId type) const
-        { return m_type == (wxDataFormatId)type; }
-    bool operator!=(wxDataFormatId type) const
-        { return m_type != (wxDataFormatId)type; }
-    bool operator==(NativeFormat format) const
-        { return m_format == (NativeFormat)format; }
-    bool operator!=(NativeFormat format) const
-        { return m_format != (NativeFormat)format; }
-    bool operator==(const wxDataFormat& format) const
-        { return m_format == format.m_format; }
-    bool operator!=(const wxDataFormat& format) const
-        { return m_format != format.m_format; }
-
-    // explicit and implicit conversions to NativeFormat which is one of
-    // standard data types (implicit conversion is useful for preserving the
-    // compatibility with old code)
-    NativeFormat GetFormatId() const { return m_format; }
-    operator NativeFormat() const { return m_format; }
-    
-    // this only works with standard ids
-    void SetId( wxDataFormatId type );
-
-    // this only works with standard ids
-    void SetId( NativeFormat format );
-
-    // string ids are used for custom types - this SetId() must be used for
-    // application-specific formats
-    wxString GetId() const;
-    void SetId( const wxChar *id );
-
-    // implementation
-    wxDataFormatId GetType() const;
-
-private:
-    wxDataFormatId   m_type;
-    NativeFormat     m_format;
-    
-    void PrepareFormats();
-    void SetType( wxDataFormatId type );
-};
-
-//----------------------------------------------------------------------------
-// wxDataObject
-//----------------------------------------------------------------------------
-
-class wxDataObject : public wxObject
+class WXDLLIMPEXP_CORE wxDataObject : public wxDataObjectBase

 {
 public:
     wxDataObject();
 {
 public:
     wxDataObject();

-    ~wxDataObject();
-    
-    virtual wxDataFormat GetPreferredFormat() const = 0;
-    
-        // get the number of formats we support: it is understood that if we
-        // can accept data in some format, then we can render data in this
-        // format as well, but the contrary is not necessarily true. For the
-        // default value of the argument, all formats we support should be
-        // returned, but if outputOnlyToo == FALSE, then we should only return
-        // the formats which our SetData() understands
-    virtual size_t GetFormatCount(bool outputOnlyToo = TRUE) const
-        { return 1; }
-       
-        // return all formats in the provided array (of size GetFormatCount())
-    virtual void GetAllFormats(wxDataFormat *formats,
-                              bool outputOnlyToo = TRUE) const
-        { formats[0] = GetPreferredFormat(); }
-       
-        // get the (total) size of data for the given format
-    virtual size_t GetDataSize(const wxDataFormat& format) const = 0;
-    
-        // copy raw data (in the specified format) to provided pointer
-    virtual bool GetDataHere(const wxDataFormat& format, void *buf) const = 0;
-    
-        // get data from the buffer (in the given format)
-    virtual bool SetData(const wxDataFormat& format, const void *buf) = 0;
-
-        // a simpler name which makes more sense for data objects supporting
-        // only one format
-    wxDataFormat GetFormat() const { return GetPreferredFormat(); }
-
-    // old interface
-        // decide if we support this format (can be either standard or custom
-        // format) -- now uses GetAllFormats()
-    virtual bool IsSupportedFormat(const wxDataFormat& format) const;
-
-private:
-    DECLARE_DYNAMIC_CLASS( wxDataObject )
-};
-
-//----------------------------------------------------------------------------
-// wxTextDataObject is a specialization of wxDataObject for text data
-//----------------------------------------------------------------------------
-
-class wxTextDataObject : public wxDataObject
-{
-public:
-    // ctors
-    wxTextDataObject();
-    wxTextDataObject(const wxString& strText);
-    void Init(const wxString& strText) { m_strText = strText; }
-
-    virtual wxDataFormat GetPreferredFormat() const
-        { return wxDF_TEXT; }
-    virtual bool IsSupportedFormat(const wxDataFormat& format) const
-        { return format == wxDF_TEXT; }
-       
-    virtual size_t GetDataSize(const wxDataFormat& format) const;
-    virtual bool GetDataHere(const wxDataFormat& format, void *buf) const;
-    virtual bool SetData(const wxDataFormat& format, const void *buf);
-
-    // additional helpers
-    void SetText(const wxString& strText) { m_strText = strText; }
-    wxString GetText() const { return m_strText; }
-
-private:
-    wxString  m_strText;
-    
-private:
-    DECLARE_DYNAMIC_CLASS( wxTextDataObject )
-};
-
-//----------------------------------------------------------------------------
-// wxFileDataObject is a specialization of wxDataObject for file names
-//----------------------------------------------------------------------------
-
-class wxFileDataObject : public wxDataObject
-{
-public:
-    wxFileDataObject();
-    
-    void AddFile( const wxString &file );
-    wxString GetFiles() const;
-    
-    virtual wxDataFormat GetPreferredFormat() const
-        { return wxDF_FILENAME; }
-    virtual bool IsSupportedFormat(const wxDataFormat& format) const
-        { return format == wxDF_FILENAME; }
-       
-    virtual size_t GetDataSize(const wxDataFormat& format) const;
-    virtual bool GetDataHere(const wxDataFormat& format, void *buf) const;
-    virtual bool SetData(const wxDataFormat& format, const void *buf);
-
-public:
-    wxString  m_files;
-  
-private:
-    DECLARE_DYNAMIC_CLASS( wxFileDataObject )
-};
-
-//----------------------------------------------------------------------------
-// wxBitmapDataObject is a specialization of wxDataObject for bitmaps
-//----------------------------------------------------------------------------
-
-class wxBitmapDataObject : public wxDataObject
-{
-public:
-    // ctors
-    wxBitmapDataObject();
-    wxBitmapDataObject(const wxBitmap& bitmap);
-
-    // destr
-    ~wxBitmapDataObject();
-    
-    // set/get our bitmap
-    void SetBitmap(const wxBitmap& bitmap);
-    const wxBitmap GetBitmap() const { return m_bitmap; }
-
-    virtual wxDataFormat GetPreferredFormat() const
-        { return wxDF_BITMAP; }
-    virtual bool IsSupportedFormat(const wxDataFormat& format) const
-        { return format == wxDF_BITMAP; }
-       
-    virtual size_t GetDataSize(const wxDataFormat& format) const;
-    virtual bool GetDataHere(const wxDataFormat& format, void *buf) const;
-    
-    // sets PNG data
-    virtual bool SetData(const wxDataFormat& format, const void *buf);
+    virtual ~wxDataObject();

 
 

-    // sets PNG data
-    virtual void SetPngData(const void *buf, size_t size);
-    
-    void *GetData() 
-        { return m_pngData; }
-    
-private: 
-    wxBitmap    m_bitmap;
-    size_t      m_pngSize;
-    void       *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_