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56 lines
1.4 KiB
56 lines
1.4 KiB
4 years ago
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#ifndef GFXBASEBALL_INCLUDED // -*- C++ -*-
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#define GFXBASEBALL_INCLUDED
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#if !defined(__GNUC__)
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# pragma once
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#endif
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/************************************************************************
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Common base class for ball-based rotators (e.g., Trackball & Arcball).
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$Id: baseball.h 443 2005-06-14 00:53:40Z garland $
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************************************************************************/
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#include "quat.h"
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namespace gfx
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{
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class Baseball
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{
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public:
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Vec3 ctr; // Describes bounding sphere of object
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double radius; //
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Quat curquat; // Current rotation of object
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Vec3 trans; // Current translation of object
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public:
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Baseball();
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virtual ~Baseball() {}
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// Required initialization method
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template<class T>
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void bounding_sphere(const TVec3<T>& v, T r) { ctr=v; radius=r; }
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// Standard event interface provide by all Ball controllers
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virtual void update_animation() = 0;
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virtual bool mouse_down(int *where, int which) = 0;
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virtual bool mouse_up(int *where, int which) = 0;
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virtual bool mouse_drag(int *where, int *last, int which) = 0;
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// Interface for use during drawing to apply appropriate transformation
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virtual void apply_transform();
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virtual void unapply_transform();
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// Interface for reading/writing transform
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virtual void write(std::ostream&);
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virtual void read(std::istream&);
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};
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} // namespace gfx
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// GFXBASEBALL_INCLUDED
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#endif
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