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/*
*
* 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 one dimensional scale dragger class.
| This is a simple dragger that allows an object to
| be scaled in one dimension, along a given direction,
| about a given center.
|
| The mouse position is projected onto a line determined
| by the scale center and the scale direction. The amount
| moved along that line determines the amount of scale.
|
| NOTE TO DEVELOPERS:
| For info about the structure of SoScale1Dragger:
| [1] compile: /usr/share/src/Inventor/samples/ivNodeKitStructure
| [2] type: ivNodeKitStructure SoScale1Dragger.
| [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:
|
| scale1Scaler - scaler
| scale1ScalerActive - scalerActive
| scale1Feedback - feedback
| scale1FeedbackActive - feedbackActive
|
| 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_SCALE_1_DRAGGER_
#define _SO_SCALE_1_DRAGGER_
#include <Inventor/SbLinear.h>
#include <Inventor/draggers/SoDragger.h>
#include <Inventor/fields/SoSFVec3f.h>
#include <Inventor/sensors/SoSensor.h>
class SbDict;
class SbLineProjector;
class SoFieldSensor;
// C-api: prefix=SoScale1Drag
// C-api: public=scaleFactor
class SoScale1Dragger : public SoDragger
{
SO_KIT_HEADER(SoScale1Dragger);
SO_KIT_CATALOG_ENTRY_HEADER(scalerSwitch);
SO_KIT_CATALOG_ENTRY_HEADER(scaler);
SO_KIT_CATALOG_ENTRY_HEADER(scalerActive);
SO_KIT_CATALOG_ENTRY_HEADER(feedbackSwitch);
SO_KIT_CATALOG_ENTRY_HEADER(feedback);
SO_KIT_CATALOG_ENTRY_HEADER(feedbackActive);
public:
// Constructors
SoScale1Dragger();
SoSFVec3f scaleFactor;
SoINTERNAL public:
static void initClass(); // initialize the class
protected:
SbLineProjector *lineProj; // projector for linear 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();
// 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 ~SoScale1Dragger();
private:
static const unsigned char geomBuffer[];
};
#endif /* _SO_SCALE_1_DRAGGER_ */
|
