glview: in impelementations, move the corresponding declaration header to top. (openscad#5371)

This is the last directory in src/glview for this to be done.
(All the others have been done in openscad#5327 already).

Co-authored-by: Marius Kintel <marius@kintel.net>

Author: hzeller

src/glview/VertexArray.cc

@@ -1,11 +1,12 @@
+#include "glview/VertexArray.h"
+
 #include <cstring>
 #include <cassert>
 #include <array>
 #include <utility>
 #include <vector>
 #include <memory>
 #include <cstdio>
-#include "glview/VertexArray.h"
 
 #include "utils/printutils.h"
 

src/glview/cgal/CGALRenderUtils.cc

@@ -1,6 +1,7 @@
-#include <algorithm>
 #include "glview/cgal/CGALRenderUtils.h"
 
+#include <algorithm>
+
 
 // this function resolves a 3x3 linear eqauation system
 /*

src/glview/cgal/CGALRenderer.cc

@@ -24,6 +24,8 @@
  *
  */
 
+#include "glview/cgal/CGALRenderer.h"
+
 #include <cassert>
 #include <limits>
 #include <utility>
@@ -40,7 +42,6 @@
 #include "utils/printutils.h"
 
 #include "glview/cgal/CGALRenderUtils.h"
-#include "glview/cgal/CGALRenderer.h"
 #ifdef ENABLE_CGAL
 #include "geometry/cgal/CGALHybridPolyhedron.h"
 #include "glview/cgal/CGAL_OGL_VBOPolyhedron.h"

src/glview/cgal/LegacyCGALRenderer.cc

@@ -24,6 +24,8 @@
  *
  */
 
+#include "glview/cgal/LegacyCGALRenderer.h"
+
 #include <cassert>
 #include <limits>
 #include <memory>
@@ -38,7 +40,6 @@
 #include "geometry/PolySetUtils.h"
 #include "utils/printutils.h"
 
-#include "glview/cgal/LegacyCGALRenderer.h"
 #include "glview/LegacyRendererUtils.h"
 #include "glview/cgal/CGALRenderUtils.h"
 #ifdef ENABLE_CGAL

src/glview/preview/CSGTreeNormalizer.cc

@@ -1,9 +1,10 @@
+#include "glview/preview/CSGTreeNormalizer.h"
+
 #include <cassert>
 #include <utility>
 #include <memory>
 #include <stack>
 
-#include "glview/preview/CSGTreeNormalizer.h"
 #include "core/CSGNode.h"
 #include "utils/printutils.h"
 

src/glview/preview/LegacyOpenCSGRenderer.cc

@@ -24,9 +24,10 @@
  *
  */
 
+#include "glview/preview/LegacyOpenCSGRenderer.h"
+
 #include "core/enums.h"
 #include "glview/system-gl.h"
-#include "glview/preview/LegacyOpenCSGRenderer.h"
 #include "glview/LegacyRendererUtils.h"
 
 #include <memory>

src/glview/system-gl.cc

@@ -1,21 +1,22 @@
 
 /* OpenGL helper functions */
 
-#include <algorithm>
-#include <iostream>
-#include <vector>
-#include <sstream>
-#include <string>
-
 #ifdef USE_GLAD
 #define GLAD_GL_IMPLEMENTATION
 #define GLAD_EGL_IMPLEMENTATION
 #ifdef _WIN32
 #define GLAD_WGL_IMPLEMENTATION
 #endif
 #endif
+
 #include "glview/system-gl.h"
 
+#include <algorithm>
+#include <iostream>
+#include <vector>
+#include <sstream>
+#include <string>
+
 #include <boost/algorithm/string.hpp>
 #include <boost/format.hpp>