use lines if a quad would be smaller than a pixel

[mussa.git] / alg / glseqbrowser.hpp

diff --git a/alg/glseqbrowser.hpp b/alg/glseqbrowser.hpp
index 9b2e16f26572bf4d1d55afdb0113b226cba822a9..40f158ba7b01467d49ca55e3d09c7244cd398c80 100644 (file)
--- a/alg/glseqbrowser.hpp
+++ b/alg/glseqbrowser.hpp
@@ -36,6 +36,8 @@ public:
   float left() const;
   //! max world right coordinate
   float right() const;
+  // return how wide is a pixel in world coordinates?
+  float get_pixel_width() const;
 
   void setViewportCenter(float x);
   //! return world coordinate of the left side of the viewport