deferred class
	CAIRO_PIXEL_SURFACE_I

inherit
	CAIRO_SURFACE_I

	EL_MODULE_ORIENTATION

	EL_MODULE_EXCEPTION

	CAIRO_G_OBJECT_HANDLER

feature {NONE} -- Initialization

	make_with_path (image_path: FILE_PATH)
		local
			buffer: CAIRO_PIXEL_BUFFER
		do
			create buffer.make (image_path)
			if buffer.self_ptr = default_pointer then
				make_rgb_24 (1, 1)
			else
				make_with_size (buffer.width, buffer.height)
				if attached new_context as context then
					context.draw_pixel_buffer (0, 0, buffer)
				end
			end
		end

	make_with_pixmap (a_pixmap: EV_PIXMAP)
		deferred
		ensure
			initialized: is_initialized
		end

	make_with_buffer (a_buffer: EV_PIXEL_BUFFER)
		-- make with Vision-2 pixel buffer
		deferred
		ensure
			initialized: is_initialized
		end

	make_with_scaled_drawing (dimension: NATURAL_8; buffer: CAIRO_DRAWING_AREA; size: DOUBLE)
		require
			valid_dimension: Orientation.is_valid_dimension (dimension)
		deferred
		ensure
			initialized: is_initialized
		end

	make_with_scaled_pixmap (dimension: NATURAL_8; other: EV_PIXMAP; size: DOUBLE)
		require
			valid_dimension: Orientation.is_valid_dimension (dimension)
		deferred
		ensure
			initialized: is_initialized
		end

	make_with_size (a_width, a_height: INTEGER)
		deferred
		ensure
			initialized: is_initialized
		end

feature -- Basic operations

	adjust_colors
		-- adjust order of color channels for OS platform
		deferred
		end

	destroy
		deferred
		end

	save_as_jpeg (file_path: FILE_PATH; quality: NATURAL)
		deferred
		end

end