added TGA handler (somewhat modified patch 1393912)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42644 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/imagtga.h

@@ -0,0 +1,46 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        imagtga.h
+// Purpose:     wxImage TGA handler
+// Author:      Seth Jackson
+// RCS-ID:      $Id$
+// Copyright:   (c) 2005 Seth Jackson
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_IMAGTGA_H_
+#define _WX_IMAGTGA_H_
+
+#include "wx/image.h"
+
+//-----------------------------------------------------------------------------
+// wxTGAHandler
+//-----------------------------------------------------------------------------
+
+#if wxUSE_TGA
+
+class WXDLLEXPORT wxTGAHandler : public wxImageHandler
+{
+public:
+    wxTGAHandler()
+    {
+        m_name = wxT("TGA file");
+        m_extension = wxT("tga");
+        m_type = wxBITMAP_TYPE_TGA;
+        m_mime = wxT("image/tga");
+    }
+
+#if wxUSE_STREAMS
+    virtual bool LoadFile(wxImage* image, wxInputStream& stream,
+                            bool verbose = true, int index = -1);
+    virtual bool SaveFile(wxImage* image, wxOutputStream& stream,
+                             bool verbose = true);
+    virtual bool DoCanRead(wxInputStream& stream);
+#endif // wxUSE_STREAMS
+
+private:
+    DECLARE_DYNAMIC_CLASS(wxTGAHandler)
+};
+
+#endif // wxUSE_TGA
+
+#endif // _WX_IMAGTGA_H_