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// Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.0 (2010/01/01)
#ifndef MAPTEXTURETOQUAD_H
#define MAPTEXTURETOQUAD_H
#include "Wm5WindowApplication2.h"
using namespace Wm5;
// If this is defined, use a HmQuadToSqrf mapping. If this is not defined,
// use a BiQuadToSqrf mapping.
#define USE_HM_QUAD_TO_SQR
class MapTextureToQuad : public WindowApplication2
{
WM5_DECLARE_INITIALIZE;
WM5_DECLARE_TERMINATE;
public:
MapTextureToQuad ();
virtual bool OnInitialize ();
virtual void OnTerminate ();
// Allows user to drag vertices of convex quadrilateral.
virtual bool OnMouseClick (int button, int state, int x, int y,
unsigned int modifiers);
virtual bool OnMotion (int button, int x, int y,
unsigned int modifiers);
protected:
void CreateMapping ();
void SelectVertex (const Vector2f& position);
void UpdateQuadrilateral (const Vector2f& position);
// The image to perspectively draw onto the convex quadrilateral.
Texture2D* mTexture;
// The four vertices of the convex quadrilateral in counterclockwise
// order: Q00 = V[0], Q10 = V[1], Q11 = V[2], Q01 = V[3].
Vector2f mVertex[4];
#ifdef USE_HM_QUAD_TO_SQR
HmQuadToSqrf* mMapping;
#else
BiQuadToSqrf* mMapping;
#endif
// For dragging the quadrilateral vertices.
bool mMouseDown;
int mSelected;
};
WM5_REGISTER_INITIALIZE(MapTextureToQuad);
WM5_REGISTER_TERMINATE(MapTextureToQuad);
#endif
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