WIP: Moved sources int src/, separated most of the source code from Perl.

The XS was left only for the unit / integration tests, and it links
libslic3r only. No wxWidgets are allowed to be used from Perl starting
from now.

src/libslic3r/Fill/FillRectilinear2.hpp

@@ -0,0 +1,74 @@
+#ifndef slic3r_FillRectilinear2_hpp_
+#define slic3r_FillRectilinear2_hpp_
+
+#include "../libslic3r.h"
+
+#include "FillBase.hpp"
+
+namespace Slic3r {
+
+class Surface;
+
+class FillRectilinear2 : public Fill
+{
+public:
+    virtual Fill* clone() const { return new FillRectilinear2(*this); };
+    virtual ~FillRectilinear2() {}
+    virtual Polylines fill_surface(const Surface *surface, const FillParams &params);
+
+protected:
+	bool fill_surface_by_lines(const Surface *surface, const FillParams &params, float angleBase, float pattern_shift, Polylines &polylines_out);
+};
+
+class FillGrid2 : public FillRectilinear2
+{
+public:
+    virtual Fill* clone() const { return new FillGrid2(*this); };
+    virtual ~FillGrid2() {}
+    virtual Polylines fill_surface(const Surface *surface, const FillParams &params);
+
+protected:
+	// The grid fill will keep the angle constant between the layers, see the implementation of Slic3r::Fill.
+    virtual float _layer_angle(size_t idx) const { return 0.f; }
+};
+
+class FillTriangles : public FillRectilinear2
+{
+public:
+    virtual Fill* clone() const { return new FillTriangles(*this); };
+    virtual ~FillTriangles() {}
+    virtual Polylines fill_surface(const Surface *surface, const FillParams &params);
+
+protected:
+	// The grid fill will keep the angle constant between the layers, see the implementation of Slic3r::Fill.
+    virtual float _layer_angle(size_t idx) const { return 0.f; }
+};
+
+class FillStars : public FillRectilinear2
+{
+public:
+    virtual Fill* clone() const { return new FillStars(*this); };
+    virtual ~FillStars() {}
+    virtual Polylines fill_surface(const Surface *surface, const FillParams &params);
+
+protected:
+    // The grid fill will keep the angle constant between the layers, see the implementation of Slic3r::Fill.
+    virtual float _layer_angle(size_t idx) const { return 0.f; }
+};
+
+class FillCubic : public FillRectilinear2
+{
+public:
+    virtual Fill* clone() const { return new FillCubic(*this); };
+    virtual ~FillCubic() {}
+    virtual Polylines fill_surface(const Surface *surface, const FillParams &params);
+
+protected:
+	// The grid fill will keep the angle constant between the layers, see the implementation of Slic3r::Fill.
+    virtual float _layer_angle(size_t idx) const { return 0.f; }
+};
+
+
+}; // namespace Slic3r
+
+#endif // slic3r_FillRectilinear2_hpp_