OpenSceneGraph/include/osgManipulator/Scale1DDragger
Robert Osfield 3006bb14f4 Changed osgManipulator::Dragger::handle(..) method to use a nested PointerInfo
class to encapsulate the pixel coords, SceneView and picking operations in prep for
making the code more general purpose, and less reliant on classes like osgUtil::SceneView and osgUtil::IntersectVisitor.
2007-02-11 21:12:34 +00:00

96 lines
3.6 KiB
C++

/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* 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
* OpenSceneGraph Public License for more details.
*/
//osgManipulator - Copyright (C) 2007 Fugro-Jason B.V.
#ifndef OSGMANIPULATOR_SCALE1DDRAGGER
#define OSGMANIPULATOR_SCALE1DDRAGGER 1
#include <osgManipulator/Dragger>
#include <osgManipulator/Projector>
namespace osgManipulator {
/**
* Dragger for performing 1D scaling.
*/
class OSGMANIPULATOR_EXPORT Scale1DDragger : public Dragger
{
public:
enum ScaleMode
{
SCALE_WITH_ORIGIN_AS_PIVOT = 0,
SCALE_WITH_OPPOSITE_HANDLE_AS_PIVOT
};
Scale1DDragger(ScaleMode scaleMode=SCALE_WITH_ORIGIN_AS_PIVOT);
/**
* Handle pick events on dragger and generate TranslateInLine commands.
*/
virtual bool handle(const PointerInfo& pi, const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& us);
/** Setup default geometry for dragger. */
void setupDefaultGeometry();
/** Set/Get min scale for dragger. */
inline void setMinScale(float min) { _minScale = min; }
inline float getMinScale() const { return _minScale; }
/** Set/Get color for dragger. */
inline void setColor(const osg::Vec4& color) { _color = color; setMaterialColor(_color,*this); }
inline const osg::Vec4 getColor() const { return _color; }
/**
* Set/Get pick color for dragger. Pick color is color of the dragger
* when picked. It gives a visual feedback to show that the dragger has
* been picked.
*/
inline void setPickColor(const osg::Vec4& color) { _pickColor = color; }
inline const osg::Vec4 getPickColor() const { return _pickColor; }
/** Set/Get left and right handle nodes for dragger. */
inline void setLeftHandleNode (osg::Node& node) { _leftHandleNode = &node; }
inline void setRightHandleNode(osg::Node& node) { _rightHandleNode = &node; }
inline osg::Node* getLeftHandleNode() { return _leftHandleNode.get(); }
inline osg::Node* getRightHandleNode() { return _rightHandleNode.get(); }
/** Set left/right handle position. */
inline void setLeftHandlePosition(float pos) { _projector->getLineStart() = osg::Vec3(pos,0.0,0.0); }
inline float getLeftHandlePosition() const { return _projector->getLineStart()[0]; }
inline void setRightHandlePosition(float pos) { _projector->getLineEnd() = osg::Vec3(pos,0.0,0.0); }
inline float getRightHandlePosition() { return _projector->getLineEnd()[0]; }
protected:
virtual ~Scale1DDragger();
osg::ref_ptr< LineProjector > _projector;
osg::Vec3 _startProjectedPoint;
float _scaleCenter;
float _minScale;
osg::ref_ptr< osg::Node > _leftHandleNode;
osg::ref_ptr< osg::Node > _rightHandleNode;
osg::Vec4 _color;
osg::Vec4 _pickColor;
ScaleMode _scaleMode;
};
}
#endif