improve image and pixel_buffer

source/paint/detail/image_pixbuf.hpp

@@ -0,0 +1,63 @@
+/*
+*	Basic Image PixelBuffer Implementation
+*	Nana C++ Library(http://www.nanapro.org)
+*	Copyright(C) 2003-2015 Jinhao(cnjinhao@hotmail.com)
+*
+*	Distributed under the Boost Software License, Version 1.0.
+*	(See accompanying file LICENSE_1_0.txt or copy at
+*	http://www.boost.org/LICENSE_1_0.txt)
+*
+*	@file: nana/paint/detail/image_pixbuf.hpp
+*/
+
+#ifndef NANA_PAINT_DETAIL_IMAGE_PIXBUF_HPP
+#define NANA_PAINT_DETAIL_IMAGE_PIXBUF_HPP
+
+#include <nana/paint/detail/image_impl_interface.hpp>
+#include <nana/paint/pixel_buffer.hpp>
+
+namespace nana
+{
+	namespace paint{	namespace detail{
+
+		class basic_image_pixbuf
+			: public image::image_impl_interface
+		{
+		public:
+			bool alpha_channel() const override
+			{
+				return pixbuf_.alpha_channel();
+			}
+
+			bool empty() const override
+			{
+				return pixbuf_.empty();
+			}
+
+			void close() override
+			{
+				pixbuf_.close();
+			}
+
+			::nana::size size() const override
+			{
+				return pixbuf_.size();
+			}
+
+			void paste(const ::nana::rectangle& src_r, graph_reference graph, const point& p_dst) const override
+			{
+				pixbuf_.paste(src_r, graph.handle(), p_dst);
+			}
+
+			void stretch(const ::nana::rectangle& src_r, graph_reference dst, const nana::rectangle& r) const override
+			{
+				pixbuf_.stretch(src_r, dst.handle(), r);
+			}
+		protected:
+			pixel_buffer pixbuf_;
+		};
+	}//end namespace detail
+	}//end namespace paint
+}//end namespace nana
+
+#endif