X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Frender%2Fview.h;h=bdddb65d31b977cf896cdd3dacc1d89c470cfbd8;hb=175153f224916b92d02a325aac5628956cda8daf;hp=155a6fa995d91bab92f90d7090b6da9f8496f113;hpb=5bb193f930fb8738d099d630c4d625d82c1215b5;p=libs%2Fgl.git

diff --git a/source/render/view.h b/source/render/view.h
index 155a6fa9..bdddb65d 100644
--- a/source/render/view.h
+++ b/source/render/view.h
@@ -1,7 +1,6 @@
 #ifndef MSP_GL_VIEW_H_
 #define MSP_GL_VIEW_H_
 
-#include <sigc++/trackable.h>
 #include "framebuffer.h"
 
 namespace Msp {
@@ -12,29 +11,37 @@ class Renderable;
 class Renderer;
 
 /**
-Manages the presentation of rendering results on the screen.
+An ultimate render target, which is typically visible to the user of the
+application in some way.
+
+The content renderable's render() function is called with an empty tag.  A
+Sequence can be used to specify other tags and add post-processing.
 */
-class View: public sigc::trackable
+class View
 {
 protected:
-	Framebuffer &target;
-	Camera *camera;
-	Renderable *content;
-	Renderer *internal_renderer;
+	Camera *camera = 0;
+	Renderable *content = 0;
+	Renderer *internal_renderer = 0;
 
-	View(Framebuffer &);
+	View() = default;
 public:
 	virtual ~View();
 
-	virtual unsigned get_width() const { return target.get_width(); }
-	virtual unsigned get_height() const { return target.get_height(); }
+	virtual unsigned get_width() const { return get_target().get_width(); }
+	virtual unsigned get_height() const { return get_target().get_height(); }
 	float get_aspect_ratio() const { return static_cast<float>(get_width())/get_height(); }
 
+	/** Sets the camera to render with.  The camera's aspect ratio is set to
+	match that of the view. */
 	void set_camera(Camera *);
+
 	void set_content(Renderable *);
 
 	virtual void render();
 	virtual void render(Renderer &);
+protected:
+	virtual const Framebuffer &get_target() const = 0;
 };
 
 } // namespace GL