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SoBoxHighlightRenderAction.3coin2

NAME

SoBoxHighlightRenderAction -

The SoBoxHighlightRenderAction class renders the scene with highlighted boxes around selections.

This action performs the same tasks as its parent class, SoGLRenderAction, with the added ability to render highlighted bounding boxes around geometry in selected nodes. This is a simple but convenient way of giving feedback to the user upon interaction with the scene graph.

SYNOPSIS

#include <Inventor/actions/SoBoxHighlightRenderAction.h>

Inherits SoGLRenderAction.

Public Member Functions

SoBoxHighlightRenderAction (void)

SoBoxHighlightRenderAction (const SbViewportRegion &viewportregion)

virtual ~SoBoxHighlightRenderAction ()

virtual void apply (SoNode *node)

virtual void apply (SoPath *path)

virtual void apply (const SoPathList &pathlist, SbBool obeysrules=0)

void setVisible (const SbBool visible)

SbBool isVisible (void) const

void setColor (const SbColor &color)

const SbColor & getColor (void)

void setLinePattern (unsigned short pattern)

unsigned short getLinePattern (void) const

void setLineWidth (const float width)

float getLineWidth (void) const

Static Public Member Functions

static void initClass (void)

Protected Attributes

SbBool hlVisible

Detailed Description

The SoBoxHighlightRenderAction class renders the scene with highlighted boxes around selections.

This action performs the same tasks as its parent class, SoGLRenderAction, with the added ability to render highlighted bounding boxes around geometry in selected nodes. This is a simple but convenient way of giving feedback to the user upon interaction with the scene graph.

To have the highlighting actually happen (and to be able to automatically 'select' nodes by picking with the mouse cursor), you need to use SoSelection nodes in place of group nodes.

See also:

SoLineHighlightRenderAction, SoSelection

Constructor & Destructor Documentation

SoBoxHighlightRenderAction::SoBoxHighlightRenderAction (void)Default constructor. Note: passes a default SbViewportRegion to the parent constructor.

SoBoxHighlightRenderAction::SoBoxHighlightRenderAction (const SbViewportRegion & viewportregion)Constructor, taking an explicit viewportregion to render.

SoBoxHighlightRenderAction::~SoBoxHighlightRenderAction (void) [virtual]Destructor.

Member Function Documentation

void SoBoxHighlightRenderAction::initClass (void) [static]Initializes the run-time type system for this class, and sets up the enabled elements and action method list.

Reimplemented from SoGLRenderAction.

void SoBoxHighlightRenderAction::apply (SoNode * root) [virtual]Applies the action to the scene graph rooted at root.

Note that you should not apply an action to a node with a zero reference count. The behavior in that case is undefined.

Reimplemented from SoAction.

References SoNode::getClassTypeId(), SbPList::getLength(), SoSelection::getList(), SoSelection::getNumSelected(), SoPath::getTail(), SoBase::getTypeId(), hlVisible, and SoType::isDerivedFrom().

Referenced by apply().

void SoBoxHighlightRenderAction::apply (SoPath * path) [virtual]Applies the action to the parts of the graph defined by path.

Note that an SoPath will also contain all nodes that may influence e.g. geometry nodes in the path. So for instance applying an SoGLRenderAction on an SoPath will render that path as expected in the view, where geometry will get its materials, textures, and other appearance settings correctly.

If the path ends in an SoGroup node, the action will also traverse the tail node's children.

Reimplemented from SoAction.

References apply().

void SoBoxHighlightRenderAction::apply (const SoPathList & pathlist, SbBool obeysrules = 0) [virtual]Applies action to the graphs defined by pathlist. If obeysrules is set to TRUE, pathlist must obey the following four conditions (which is the case for path lists returned from search actions for non-group nodes and path lists returned from picking actions):

All paths must start at the same head node. All paths must be sorted in traversal order. The paths must be unique. No path can continue through the end point of another path.

See also:

SoAction::apply(SoPath * path)

Reimplemented from SoAction.

References apply().

void SoBoxHighlightRenderAction::setVisible (const SbBool visible)Sets if highlighted boxes should be visible when rendering. Defaults to TRUE.

References hlVisible.

SbBool SoBoxHighlightRenderAction::isVisible (void) constReturn if highlighted boxes are to be visible.

References hlVisible.

void SoBoxHighlightRenderAction::setColor (const SbColor & color)Sets the color for the highlighted boxes. Defaults to completely red.

const SbColor & SoBoxHighlightRenderAction::getColor (void)Returns rendering color of the highlighted boxes.

void SoBoxHighlightRenderAction::setLinePattern (unsigned short pattern)Sets the line pattern used for the highlighted boxes. Defaults to 0xffff (i.e. drawn with no stipples).

unsigned short SoBoxHighlightRenderAction::getLinePattern (void) constReturns line pattern used when drawing boxes.

void SoBoxHighlightRenderAction::setLineWidth (const float width)Sets the line width used when drawing boxes, in screen pixels (as for all OpenGL rendering). Defaults to 3.

float SoBoxHighlightRenderAction::getLineWidth (void) constReturns the line width used when drawing highlight boxes.

Member Data Documentation

SoBoxHighlightRenderAction::hlVisible [protected]Boolean which decides whether or not the highlights for selected nodes should be visible.

Referenced by apply(), isVisible(), and setVisible().

Author

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