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
|
/*
*
* Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*
*/
// -*- C++ -*-
/*
* Copyright (C) 1990,91,92 Silicon Graphics, Inc.
*
_______________________________________________________________________
______________ S I L I C O N G R A P H I C S I N C . ____________
|
| $Revision: 1.1.1.1 $
|
| Classes:
| SoEvent
|
| Author(s): David Mott, Gavin Bell
|
______________ S I L I C O N G R A P H I C S I N C . ____________
_______________________________________________________________________
*/
#ifndef _SO_EVENT_
#define _SO_EVENT_
#include <Inventor/SbBasic.h>
#include <Inventor/SbViewportRegion.h>
#include <Inventor/SbLinear.h>
#include <Inventor/SbTime.h>
#include <Inventor/SoType.h>
// C-api: prefix=SoEv
class SoEvent {
public:
// Constructor and destructor
SoEvent();
// C-api: expose
virtual ~SoEvent();
// returns typeId of this event
// C-api: expose
virtual SoType getTypeId() const;
// typeId of the class
static SoType getClassTypeId() { return classTypeId; }
// returns TRUE if event is of given type or is derived from it
SbBool isOfType(SoType type) const;
// returns the time stamp specifying when this event occurred
void setTime(SbTime t) { timestamp = t; }
SbTime getTime() const { return timestamp; }
// set/get window pixel position of the locator when the event occurred.
// position is relative to the lower left corner of the viewport
// C-api: name=setPos
void setPosition(const SbVec2s &p) { position = p; }
// C-api: name=getPos
const SbVec2s & getPosition() const { return position; }
// get position reletive to the specified viewport bounds
// C-api: name=getPosInVP
const SbVec2s & getPosition(const SbViewportRegion &vpRgn) const;
// get position reletive to the specified viewport bounds
// and normalize this value between 0.0 and 1.0
// C-api: name=getNormPos
const SbVec2f & getNormalizedPosition(const SbViewportRegion &vpRgn) const;
// set the state of the modifier keys when the event occurred
void setShiftDown(SbBool isDown) { shiftDown = isDown; }
void setCtrlDown(SbBool isDown) { ctrlDown = isDown; }
void setAltDown(SbBool isDown) { altDown = isDown; }
// return the state of the modifier keys when the event occurred
SbBool wasShiftDown() const { return shiftDown; }
SbBool wasCtrlDown() const { return ctrlDown; }
SbBool wasAltDown() const { return altDown; }
SoINTERNAL public:
// Initializes base event class
static void initClass();
// Initialize ALL Inventor event classes
static void initClasses();
private:
// all of these are set according to when the event occurred
SbTime timestamp; // time the event occurred
SbBool shiftDown; // TRUE if shift key was down
SbBool ctrlDown; // TRUE if ctrl key was down
SbBool altDown; // TRUE if alt key was down
SbVec2s position; // locator position when event occurred
SbVec2s viewportPos; // position relative to viewport
SbVec2f normalizedPos; // normalized position
static SoType classTypeId; // base typeId for all events
};
#endif /* _SO_EVENT_ */
|
