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[1097] | 1 | #ifndef MXARCBALL_INCLUDED // -*- C++ -*-
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| 2 | #define MXARCBALL_INCLUDED
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| 3 | #if !defined(__GNUC__)
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| 4 | # pragma once
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| 5 | #endif
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| 6 |
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| 7 | /************************************************************************
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| 8 |
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| 9 | MxArcball
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| 10 |
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| 11 | Copyright (C) 1998 Michael Garland. See "COPYING.txt" for details.
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| 12 |
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| 13 | $Id: MxArcball.h,v 1.1 2002/09/24 16:53:54 wimmer Exp $
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| 14 |
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| 15 | ************************************************************************/
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| 16 |
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| 17 | #include "MxVec4.h"
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| 18 | #include "MxMat4.h"
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| 19 | #include "MxManipulator.h"
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| 20 |
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| 21 | typedef Vec4 Quat;
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| 22 | struct BallData;
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| 23 |
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| 24 |
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| 25 | class MxArcball : public MxManipulator
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| 26 | {
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| 27 | private:
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| 28 | int mousex, mousey;
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| 29 | int startx, starty;
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| 30 | BallData *ball;
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| 31 | Quat center;
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| 32 | float radius;
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| 33 |
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| 34 | enum {NoDrag=0, Spin, Dolly, Zoom, LightAdjust} dragging;
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| 35 |
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| 36 | double __proj_save[16];
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| 37 |
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| 38 | public:
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| 39 | Vec4 vNow;
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| 40 | float cam[3];
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| 41 |
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| 42 | public:
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| 43 | MxArcball() { ball=NULL; }
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| 44 | MxArcball(const MxBounds& bounds, float aspect)
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| 45 | { ball=NULL; init(bounds,aspect); }
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| 46 | ~MxArcball();
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| 47 | void init(const MxBounds& bounds, float aspect);
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| 48 |
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| 49 |
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| 50 | bool mouse_down(int which, int x, int y, int kind=1);
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| 51 | bool mouse_up(int which, int x, int y, int kind=2);
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| 52 | bool motion(int x, int y);
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| 53 |
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| 54 | void apply();
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| 55 | void unapply();
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| 56 | void draw();
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| 57 |
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| 58 | double *get_qnow();
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| 59 | };
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| 60 |
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| 61 | // MXARCBALL_INCLUDED
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| 62 | #endif
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