File: SoTranslate2Dragger.h

package info (click to toggle)
inventor 2.1.5-10-21
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, sid
  • size: 36,312 kB
  • sloc: ansic: 33,864; lisp: 7,361; cpp: 3,874; yacc: 369; sh: 359; perl: 234; awk: 141; makefile: 81; csh: 35; sed: 11
file content (171 lines) | stat: -rw-r--r-- 6,207 bytes parent folder | download | duplicates (2)
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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
/*
 *
 *  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 $
 |
 |   Description:
 |	This file defines the two dimensional translate dragger class.
 |	This is a simple dragger that allows an object to
 |	be translated within a plane. (defined by the plane normal (default
 |      normal is (0,0,1) and by the point initially hit by the user).
 |
 |      If the user presses the SHIFT key while dragging, the motion will
 |      constrain to linear motion along one of the two main axes of motion.
 |      The axis selected will be the primary axis followed by the user's
 |      dragging gesture.
 |
 |	The amount moved in the plane determines the translation.
 |
 | NOTE TO DEVELOPERS:
 |     For info about the structure of SoTranslate2Dragger:
 |     [1] compile: /usr/share/src/Inventor/samples/ivNodeKitStructure
 |     [2] type:    ivNodeKitStructure SoTranslate2Dragger.
 |     [3] The program prints a diagram of the scene graph and a table with 
 |         information about each part.
 |
 |  The following parts in this dragger are created at construction time.
 |  'ResourceName' corresponds to the name of the default geometry for the
 |  part. The dragger's constructor gets the scene graph for 'ResourceName'
 |  by querying the global dictionary ( SoDB::getByName("ResourceName"); ).  
 |
 |  Resource Name:                           Part Name:
 |
 |  translate2Translator                   - translator
 |  translate2TranslatorActive             - translatorActive
 |  translate2Feedback                     - feedback
 |  translate2FeedbackActive               - feedbackActive
 |
 |  NOTE: These are only shown if dragger 
 |        is moving and the axis is a 
 |        permissable direction of motion.
 |        When pressing <shift>, motion is
 |        constrained, and only 1 is displayed.
 |  translate2XAxisFeedback                - xAxisFeedback
 |  translate2YAxisFeedback                - yAxisFeedback
 |
 |   Author(s): Paul Isaacs, Howard Look
 |
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 _______________________________________________________________________
 */

#ifndef  _SO_TRANSLATE_2_DRAGGER_
#define  _SO_TRANSLATE_2_DRAGGER_

#include <Inventor/SbLinear.h>
#include <Inventor/draggers/SoDragger.h>
#include <Inventor/fields/SoSFVec3f.h>
#include <Inventor/sensors/SoSensor.h>

class SbDict;
class SbPlaneProjector;
class SoFieldSensor;

// C-api: prefix=SoXlate2Drag
// C-api: public=translation
class SoTranslate2Dragger : public SoDragger
{
    SO_KIT_HEADER(SoTranslate2Dragger);

    SO_KIT_CATALOG_ENTRY_HEADER(translatorSwitch);
    SO_KIT_CATALOG_ENTRY_HEADER(translator);
    SO_KIT_CATALOG_ENTRY_HEADER(translatorActive);
    SO_KIT_CATALOG_ENTRY_HEADER(feedbackSwitch);
    SO_KIT_CATALOG_ENTRY_HEADER(feedback);
    SO_KIT_CATALOG_ENTRY_HEADER(feedbackActive);
    SO_KIT_CATALOG_ENTRY_HEADER(axisFeedbackSwitch);
    SO_KIT_CATALOG_ENTRY_HEADER(xAxisFeedback);
    SO_KIT_CATALOG_ENTRY_HEADER(yAxisFeedback);

  public:
    // Constructors
    SoTranslate2Dragger();

    SoSFVec3f translation;

  SoINTERNAL public:
    static void initClass();  // initialize the class

  protected:

    SbVec3f         worldRestartPt; // used if SHIFT key goes down to 
				    // initiate a new gesture.
    SbPlaneProjector *planeProj; // projector for planar scaling

    static void startCB( void *, SoDragger * );
    static void motionCB( void *, SoDragger * );
    static void finishCB( void *, SoDragger * );

    SoFieldSensor *fieldSensor;
    static void fieldSensorCB( void *, SoSensor * );
    static void valueChangedCB( void *, SoDragger * );

    void dragStart();
    void drag();
    void dragFinish();

    // Callback for pressing and releasing the meta keys
    static void	metaKeyChangeCB( void *, SoDragger *);

    // detach/attach any sensors, callbacks, and/or field connections.
    // Called by:            start/end of SoBaseKit::readInstance
    // and on new copy by:   start/end of SoBaseKit::copy.
    // Classes that redefine must call setUpConnections(TRUE,TRUE) 
    // at end of constructor.
    // Returns the state of the node when this was called.
    virtual SbBool setUpConnections( SbBool onOff, SbBool doItAlways = FALSE );

    virtual ~SoTranslate2Dragger();

  private:
    int     translateDir;   // Used for 1-D translation,
    SbBool  shftDown;  // used to keep track of shift modifier key

    static const unsigned char geomBuffer[];
};    

#endif  /* _SO_TRANSLATE_2_DRAGGER_ */