/usr/include/dx/UserInteractors.h is in libdx4-dev 1:4.4.4-7+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 | /***********************************************************************/
/* Open Visualization Data Explorer */
/* (C) Copyright IBM Corp. 1989,1999 */
/* ALL RIGHTS RESERVED */
/* This code licensed under the */
/* "IBM PUBLIC LICENSE - Open Visualization Data Explorer" */
/***********************************************************************/
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
#ifndef _DXI_USERINTERACTORS_H_
#define _DXI_USERINTERACTORS_H_
/*
* ROTXY creates a matrix which rotates about a unit vector [x y 0].
* This matrix can be composed from a rotation about Z to align the
* vector with the X axis, followed by a rotation about the X axis, then
* finished with the inverse of the Z rotation:
*
* x -y 0 0 1 0 0 0 x y 0 0
* y x 0 0 X 0 cos(a) sin(a) 0 X -y x 0 0
* 0 0 1 0 0 -sin(a) cos(a) 0 0 0 1 0
* 0 0 0 1 0 0 0 1 0 0 0 1
*
* This composes into:
*
* x*x + y*y*cos(a) x*y - x*y*cos(a) -y*sin(a) 0
* x*y - x*y*cos(a) y*y + x*x*cos(a) x*sin(a) 0
* y*sin(a) -x*sin(a) cos(a) 0
* 0 0 0 1
*
* By using the identity x*x + y*y = 1 and defining t = 1 - cos(a), the
* matrix can be simplified as follows:
*/
#define ROTXY(m, x, y, s, c, t) {\
m[0][0]= t*x*x + c; m[0][1]= t*x*y; m[0][2]= -s*y; m[0][3] =0;\
m[1][0]= t*x*y; m[1][1]= t*y*y + c; m[1][2]= s*x; m[1][3] =0;\
m[2][0]= s*y; m[2][1]= -s*x; m[2][2]= c; m[2][3] =0;\
m[3][0]= 0; m[3][1]= 0; m[3][2]= 0; m[3][3] =1;}
/*
* ROTXYZ is derived in a fashion analogous to ROTXY, extended for the Z
* component of a unit rotation axis [x y z].
*/
#define ROTXYZ(m, x, y, z, s, c, t) {\
m[0][0]= t*x*x + c; m[0][1]= t*x*y + s*z; m[0][2]= t*x*z - s*y; m[0][3]= 0;\
m[1][0]= t*x*y - s*z; m[1][1]= t*y*y + c; m[1][2]= t*y*z + s*x; m[1][3]= 0;\
m[2][0]= t*x*z + s*y; m[2][1]= t*y*z - s*x; m[2][2]= t*z*z + c; m[2][3]= 0;\
m[3][0]= 0; m[3][1]= 0; m[3][2]= 0; m[3][3]= 1;}
typedef struct
{
int event;
int pad[7];
} DXAnyEvent;
typedef struct
{
int event;
int x;
int y;
int state;
int kstate;
} DXMouseEvent;
typedef struct
{
int event;
int x;
int y;
int key;
int kstate;
} DXKeyPressEvent;
typedef union
{
DXAnyEvent any;
DXMouseEvent mouse;
DXKeyPressEvent keypress;
} DXEvent, *DXEvents;
/*
* The following are convenience typedefs that MUST agree with the
* subsequent structure definition elements
*/
typedef void *(*InitMode)(Object args, int width, int height, int *mask);
typedef void (*EndMode)(void *handle);
typedef void (*SetCamera)(void *handle, float *to, float *from, float *up,
int projection, float fov, float width);
typedef int (*GetCamera)(void *handle, float *to, float *from, float *up,
int *projection, float *fov, float *width);
typedef void (*SetRenderable)(void *handle, Object obj);
typedef int (*GetRenderable)(void *handle, Object *obj);
typedef void (*EventHandler)(void *handler, DXEvent *event);
struct _userInteractor
{
void *(*InitMode)(Object, int, int, int *);
void (*EndMode)(void *);
void (*SetCamera)(void *, float *, float *, float *,
int, float, float);
int (*GetCamera)(void *, float *, float *, float *,
int *, float *, float *);
void (*SetRenderable)(void *, Object);
int (*GetRenderable)(void *, Object *);
void (*EventHandler)(void *, DXEvent *);
};
typedef struct _userInteractor UserInteractor;
/*
* Events
*/
#define DXEVENT_LEFT 0x01
#define DXEVENT_MIDDLE 0x02
#define DXEVENT_RIGHT 0x04
#define DXEVENT_KEYPRESS 0x08
/*
* Button states
*/
#define BUTTON_UP 1
#define BUTTON_DOWN 2
#define BUTTON_MOTION 3
#define LEFTBUTTON 0
#define MIDDLEBUTTON 1
#define RIGHTBUTTON 2
#define NO_BUTTON -1
#define WHICH_BUTTON(e) \
((((DXAnyEvent *)e)->event) == DXEVENT_LEFT ? LEFTBUTTON : \
(((DXAnyEvent *)e)->event) == DXEVENT_MIDDLE ? MIDDLEBUTTON : \
(((DXAnyEvent *)e)->event) == DXEVENT_RIGHT ? RIGHTBUTTON : NO_BUTTON)
#endif /* _DXI_USERINTERACTORS_H_ */
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
|