added dobjcmn.cpp

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4087 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/dataobj2.h

@@ -0,0 +1,72 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        gtk/dataobj2.h
+// Purpose:     declaration of standard wxDataObjectSimple-derived classes
+// Author:      Robert Roebling
+// Created:     19.10.99 (extracted from gtk/dataobj.h)
+// RCS-ID:      $Id$
+// Copyright:   (c) 1998, 1999 Vadim Zeitlin, Robert Roebling
+// Licence:     wxWindows license
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_GTK_DATAOBJ2_H_
+#define _WX_GTK_DATAOBJ2_H_
+
+#ifdef __GNUG__
+    #pragma interface "dataobj.h"
+#endif
+
+// ----------------------------------------------------------------------------
+// wxBitmapDataObject is a specialization of wxDataObject for bitmaps
+// ----------------------------------------------------------------------------
+
+class wxBitmapDataObject : public wxBitmapDataObjectBase
+{
+public:
+    // ctors
+    wxBitmapDataObject();
+    wxBitmapDataObject(const wxBitmap& bitmap);
+
+    // destr
+    ~wxBitmapDataObject();
+
+    // override base class virtual to update PNG data too
+    virtual void SetBitmap(const wxBitmap& bitmap);
+
+    void *GetPngData() const { return m_pngData; }
+
+    // implement base class pure virtuals
+    // ----------------------------------
+
+    virtual size_t GetDataSize() const { return m_pngSize; }
+    virtual bool GetDataHere(void *buf) const;
+    virtual bool SetData(size_t len, const void *buf);
+
+protected:
+    void Init() { m_pngData = (void *)NULL; m_pngSize = 0; }
+    void Clear() { free(m_pngData); }
+    void ClearAll() { Clear(); Init(); }
+
+private:
+    size_t      m_pngSize;
+    void       *m_pngData;
+
+    void DoConvertToPng();
+};
+
+// ----------------------------------------------------------------------------
+// wxFileDataObject is a specialization of wxDataObject for file names
+// ----------------------------------------------------------------------------
+
+class wxFileDataObject : public wxFileDataObjectBase
+{
+public:
+    // implement base class pure virtuals
+    // ----------------------------------
+
+    virtual size_t GetDataSize() const;
+    virtual bool GetDataHere(void *buf) const;
+    virtual bool SetData(size_t len, const void *buf);
+};
+
+#endif // _WX_GTK_DATAOBJ2_H_
+