Initial commit

Torque/SDK/engine/util/rectClipper.h

@@ -0,0 +1,55 @@
+//-----------------------------------------------------------------------------
+// Torque Shader Engine
+// Copyright (C) GarageGames.com, Inc.
+//-----------------------------------------------------------------------------
+
+#ifndef _RECTCLIPPER_H_
+#define _RECTCLIPPER_H_
+
+//Includes
+#ifndef _PLATFORM_H_
+#include "platform/platform.h"
+#endif
+#ifndef _MRECT_H_
+#include "math/mRect.h"
+#endif
+
+
+class RectClipper
+{
+   RectI m_clipRect;
+
+  public:
+   RectClipper(const RectI& in_rRect);
+
+   bool  clipPoint(const Point2I& in_rPoint) const;
+   bool  clipLine(const Point2I& in_rStart,
+                  const Point2I& in_rEnd,
+                  Point2I&       out_rStart,
+                  Point2I&       out_rEnd) const;
+   bool  clipRect(const RectI& in_rRect,
+                  RectI&       out_rRect) const;
+};
+
+//------------------------------------------------------------------------------
+//-------------------------------------- INLINES
+//
+inline
+RectClipper::RectClipper(const RectI& in_rRect)
+ : m_clipRect(in_rRect)
+{
+   //
+}
+
+inline bool
+RectClipper::clipPoint(const Point2I& in_rPoint) const
+{
+   if ((in_rPoint.x < m_clipRect.point.x) ||
+       (in_rPoint.y < m_clipRect.point.y) ||
+       (in_rPoint.x >= m_clipRect.point.x + m_clipRect.extent.x) ||
+       (in_rPoint.y >= m_clipRect.point.y + m_clipRect.extent.y))
+      return false;
+   return true;
+}
+
+#endif //_RECTCLIPPER_H_