# HG changeset patch
# User Rik <rik@octave.org>
# Date 1423935177 28800
# Node ID 1a6fa5a523e4d2a3bf65f04834e9efc63f86249e
# Parent  52cd69e797846d02c6d35c8e9b6f2ff916baaf54
Correctly use GL2PS_POLYGON_OFFSET_FILL (bug #44111, bug #44125).

* gl-render.h (set_polygon_offset): Correct prototype to use initial value
of 0.0f.

* gl2ps-renderer.h (set_polygon_offset): First call
opengl_renderer::set_polygon_offset to set offset.  Next, call
gl2psEnable (GL2PS_POLYGON_OFFSET) to have gl2ps capture the offset
value.

diff -r 52cd69e79784 -r 1a6fa5a523e4 libinterp/corefcn/gl-render.h
--- a/libinterp/corefcn/gl-render.h	Sat Feb 14 07:12:22 2015 -0800
+++ b/libinterp/corefcn/gl-render.h	Sat Feb 14 09:32:57 2015 -0800
@@ -99,7 +99,7 @@
   virtual void setup_opengl_transformation (const axes::properties& props);
 
   virtual void set_color (const Matrix& c);
-  virtual void set_polygon_offset (bool on, float offset = 0.0);
+  virtual void set_polygon_offset (bool on, float offset = 0.0f);
   virtual void set_linewidth (float w);
   virtual void set_linestyle (const std::string& s, bool stipple = false);
   virtual void set_clipbox (double x1, double x2, double y1, double y2,
diff -r 52cd69e79784 -r 1a6fa5a523e4 libinterp/corefcn/gl2ps-renderer.h
--- a/libinterp/corefcn/gl2ps-renderer.h	Sat Feb 14 07:12:22 2015 -0800
+++ b/libinterp/corefcn/gl2ps-renderer.h	Sat Feb 14 09:32:57 2015 -0800
@@ -64,14 +64,19 @@
       gl2psEnable (GL2PS_LINE_STIPPLE);
   }
 
-  void set_polygon_offset (bool on, double offset = 0.0)
+  void set_polygon_offset (bool on, float offset = 0.0f)
   {
-    opengl_renderer::set_polygon_offset (on, offset);
     if (on)
-      gl2psEnable (GL2PS_POLYGON_OFFSET_FILL);
+      {
+        opengl_renderer::set_polygon_offset (on, offset);
+        gl2psEnable (GL2PS_POLYGON_OFFSET_FILL);
+      }
     else
-      gl2psDisable (GL2PS_POLYGON_OFFSET_FILL);
-  }
+      {
+        gl2psDisable (GL2PS_POLYGON_OFFSET_FILL);
+        opengl_renderer::set_polygon_offset (on, offset);
+      }
+  } 
 
   void set_linewidth (float w)
   {