initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/include/wx/imagpng.h

@@ -0,0 +1,69 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/imagpng.h
+// Purpose:     wxImage PNG handler
+// Author:      Robert Roebling
+// Copyright:   (c) Robert Roebling
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_IMAGPNG_H_
+#define _WX_IMAGPNG_H_
+
+#include "wx/defs.h"
+
+//-----------------------------------------------------------------------------
+// wxPNGHandler
+//-----------------------------------------------------------------------------
+
+#if wxUSE_LIBPNG
+
+#include "wx/image.h"
+#include "wx/versioninfo.h"
+
+#define wxIMAGE_OPTION_PNG_FORMAT    wxT("PngFormat")
+#define wxIMAGE_OPTION_PNG_BITDEPTH  wxT("PngBitDepth")
+#define wxIMAGE_OPTION_PNG_FILTER    wxT("PngF")
+#define wxIMAGE_OPTION_PNG_COMPRESSION_LEVEL       wxT("PngZL")
+#define wxIMAGE_OPTION_PNG_COMPRESSION_MEM_LEVEL   wxT("PngZM")
+#define wxIMAGE_OPTION_PNG_COMPRESSION_STRATEGY    wxT("PngZS")
+#define wxIMAGE_OPTION_PNG_COMPRESSION_BUFFER_SIZE wxT("PngZB")
+#define wxIMAGE_OPTION_PNG_DESCRIPTION             wxT("PngDescription")
+
+enum
+{
+    wxPNG_TYPE_COLOUR = 0,
+    wxPNG_TYPE_GREY = 2,
+    wxPNG_TYPE_GREY_RED = 3,
+    wxPNG_TYPE_PALETTE = 4
+};
+
+class WXDLLIMPEXP_CORE wxPNGHandler: public wxImageHandler
+{
+public:
+    inline wxPNGHandler()
+    {
+        m_name = wxT("PNG file");
+        m_extension = wxT("png");
+        m_type = wxBITMAP_TYPE_PNG;
+        m_mime = wxT("image/png");
+    }
+
+    static wxVersionInfo GetLibraryVersionInfo();
+
+#if wxUSE_STREAMS
+    virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=true, int index=-1 ) override;
+    virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=true ) override;
+protected:
+    virtual bool DoCanRead( wxInputStream& stream ) override;
+#endif
+
+private:
+    wxDECLARE_DYNAMIC_CLASS(wxPNGHandler);
+};
+
+#endif
+  // wxUSE_LIBPNG
+
+#endif
+  // _WX_IMAGPNG_H_
+