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SoTabPlaneDragger Class Reference

The SoTabPlaneDragger class is a dragger you can translate and scale within a plane. More...

#include <Inventor/draggers/SoTabPlaneDragger.h>

Inheritance diagram for SoTabPlaneDragger::

List of all members.

Public Methods
	SoTabPlaneDragger (void)
void	adjustScaleTabSize (void)
Static Public Methods
void	initClass (void)
Public Attributes
SoSFVec3f	translation
SoSFVec3f	scaleFactor
Protected Methods
	~SoTabPlaneDragger ()
virtual void	GLRender (SoGLRenderAction *action)
virtual SbBool	setUpConnections (SbBool onoff, SbBool doitalways=FALSE)
virtual void	setDefaultOnNonWritingFields (void)
void	reallyAdjustScaleTabSize (SoGLRenderAction *action)
void	getXYScreenLengths (SbVec2f &lengths, const SbMatrix &localtoscreen, const SbVec2s &winsize)
void	dragStart (void)
void	drag (void)
void	dragFinish (void)

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Detailed Description

The SoTabPlaneDragger class is a dragger you can translate and scale within a plane.

For translation, click anywhere inside the dragger's plane and move it about in 2D.

For non-uniform scaling operations, click and drag any of the 4 side tabs. For uniform scaling, click and drag any of the 4 corner tabs.

See also:

SoTabBoxDragger

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Constructor & Destructor Documentation

SoTabPlaneDragger::SoTabPlaneDragger (  void )

Default constructor, sets up the dragger nodekit catalog with the interaction and feedback geometry.

SoTabPlaneDragger::~SoTabPlaneDragger (  )  [protected]

Protected destructor. (Dragger classes are derived from SoBase, so they are reference counted and automatically destroyed when their reference count goes to 0.)

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Member Function Documentation

void SoTabPlaneDragger::initClass (  void )  [static]

Initializes type system for this dragger class. Application programmers should usually not have to invoke this method, see documentation of SoInteraction::initClass(). Reimplemented from SoDragger.

void SoTabPlaneDragger::adjustScaleTabSize (  void )

Signals the dragger to recalculate the size of its tabs. This method is not doing anything useful in Coin, since the tab sizes are recalculated every time the dragger is rendered, even though this method has not been called.

void SoTabPlaneDragger::GLRender (  SoGLRenderAction * action )  [protected, virtual]

Action method for the SoGLRenderAction. This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method. Reimplemented from SoDragger.

SbBool SoTabPlaneDragger::setUpConnections (  SbBool onoff, SbBool doitalways = FALSE )  [protected, virtual]

Sets up all internal connections for instances of this class. (This method will usually not be of interest to the application programmer, unless you want to extend the library with new custom nodekits or dragger classes. If so, see the SoBaseKit class documentation.) Reimplemented from SoInteractionKit.

void SoTabPlaneDragger::setDefaultOnNonWritingFields (  void )  [protected, virtual]

(Be aware that this method is unlikely to be of interest to the application programmer who does not want to extend the library with new custom nodekits or draggers. If you indeed are writing extensions, see the information in the SoBaseKit class documentation.) A virtual method that should call SoField::setDefault() with argument TRUE on part fields that should not be written upon scenegraph export operations. This is typically done when: field value is NULL and part is NULL by default it is a leaf SoGroup or SoSeparator node with no children it is a leaf listpart with no children and a SoGroup or SoSeparator container it is a non-leaf part and it's of SoGroup type and all fields are at their default values Subclasses should usually override this to do additional settings for new member fields. From the subclass, do remember to call "upwards" to your superclass' setDefaultOnNonWritingFields() method. Reimplemented from SoDragger.

void SoTabPlaneDragger::reallyAdjustScaleTabSize (  SoGLRenderAction * action )  [protected]

Recalculates the size of the tabs, based on the current view volume, the current viewport, the current model matrix and the current scale factor. If action == NULL, a default size will be used.

void SoTabPlaneDragger::getXYScreenLengths (  SbVec2f & lengths, const SbMatrix & localtoscreen, const SbVec2s & winsize )  [protected]

Not implemented.

void SoTabPlaneDragger::dragStart (  void )  [protected]

For internal use only.

void SoTabPlaneDragger::drag (  void )  [protected]

For internal use only.

void SoTabPlaneDragger::dragFinish (  void )  [protected]

For internal use only.

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Member Data Documentation

SoSFVec3f SoTabPlaneDragger::translation

Continuously updated to contain the current translation from the dragger's local origo position.

SoSFVec3f SoTabPlaneDragger::scaleFactor

Continuously updated to contain the current vector of scaling along the X, Y and Z axes. The Z component will always be 1.0.

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The documentation for this class was generated from the following files:

• SoTabPlaneDragger.cpp
• SoTabPlaneDragger.h

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