NAME
SoTabPlaneDragger -
The SoTabPlaneDragger class is a dragger you can translate and scale
within a plane.
Here’s how the dragger looks with its default geometry in the inactive
state:
SYNOPSIS
#include <Inventor/draggers/SoTabPlaneDragger.h>
Inherits SoDragger.
Public Member Functions
SoTabPlaneDragger (void)
void adjustScaleTabSize (void)
Static Public Member Functions
static void initClass (void)
Public Attributes
SoSFVec3f translation
SoSFVec3f scaleFactor
Protected Member Functions
virtual ~SoTabPlaneDragger (void)
virtual void GLRender (SoGLRenderAction *action)
virtual SbBool setUpConnections (SbBool onoff, SbBool doitalways=0)
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)
Detailed Description
The SoTabPlaneDragger class is a dragger you can translate and scale
within a plane.
Here’s how the dragger looks with its default geometry in the inactive
state:
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
Constructor & Destructor Documentation
SoTabPlaneDragger::SoTabPlaneDragger (void) Default constructor, sets up
the dragger nodekit catalog with the interaction and feedback geometry.
Node kit structure (new entries versus parent class marked with arrow
prefix):
CLASS SoTabPlaneDragger
-->"this"
"callbackList"
"topSeparator"
"motionMatrix"
"geomSeparator"
--> "planeSwitch"
--> "translator"
--> "scaleTabs"
--> "scaleTabMaterial"
--> "scaleTabHints"
--> "scaleTabMaterialBinding"
--> "scaleTabNormalBinding"
--> "scaleTabNormal"
--> "edgeScaleCoords"
--> "edgeScaleTab0"
--> "edgeScaleTab1"
--> "edgeScaleTab2"
--> "edgeScaleTab3"
--> "cornerScaleCoords"
--> "cornerScaleTab0"
--> "cornerScaleTab1"
--> "cornerScaleTab2"
--> "cornerScaleTab3"
.fi
(See SoBaseKit::printDiagram() for information about the output formatting.)
Detailed information on catalog parts:
CLASS SoTabPlaneDragger
PVT "this", SoTabPlaneDragger ---
"callbackList", SoNodeKitListPart [ SoCallback, SoEventCallback ]
PVT "topSeparator", SoSeparator ---
PVT "motionMatrix", SoMatrixTransform ---
PVT "geomSeparator", SoSeparator ---
PVT "planeSwitch", SoSwitch ---
"translator", SoSeparator ---
PVT "scaleTabs", SoSeparator ---
"scaleTabMaterial", SoMaterial ---
"scaleTabHints", SoShapeHints ---
PVT "scaleTabMaterialBinding", SoMaterialBinding ---
PVT "scaleTabNormalBinding", SoNormalBinding ---
PVT "scaleTabNormal", SoNormal ---
PVT "edgeScaleCoords", SoCoordinate3 ---
PVT "edgeScaleTab0", SoIndexedFaceSet ---
PVT "edgeScaleTab1", SoIndexedFaceSet ---
PVT "edgeScaleTab2", SoIndexedFaceSet ---
PVT "edgeScaleTab3", SoIndexedFaceSet ---
PVT "cornerScaleCoords", SoCoordinate3 ---
PVT "cornerScaleTab0", SoIndexedFaceSet ---
PVT "cornerScaleTab1", SoIndexedFaceSet ---
PVT "cornerScaleTab2", SoIndexedFaceSet ---
PVT "cornerScaleTab3", SoIndexedFaceSet ---
.fi
(See SoBaseKit::printTable() for information about the output formatting.)
SoTabPlaneDragger::~SoTabPlaneDragger (void) [protected, virtual] Protected
destructor.
(Dragger classes are derived from SoBase, so they are reference counted
and automatically destroyed when their reference count goes to 0.)
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::init().
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
= 0) [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.)
This is a virtual method, and the code in it should call
SoField::setDefault() with argument TRUE on part fields that should not
be written upon scenegraph export operations.
This is typically done when:
1. field value is NULL and part is NULL by default
2. it is a leaf SoGroup or SoSeparator node with no children
3. it is a leaf listpart with no children and an SoGroup or
SoSeparator container
4. 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::dragStart (void) [protected] This API member is
considered internal to the library, as it is not likely to be of
interest to the application programmer.
Called when dragger is selected (picked) by the user.
void SoTabPlaneDragger::drag (void) [protected] This API member is
considered internal to the library, as it is not likely to be of
interest to the application programmer.
Called when user drags the mouse after picking the dragger.
void SoTabPlaneDragger::dragFinish (void) [protected] This API member is
considered internal to the library, as it is not likely to be of
interest to the application programmer.
Called when mouse button is released after picking and interacting with
the dragger.
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.
Author
Generated automatically by Doxygen for Coin from the source code.