The SoLineHighlightRenderAction class renders selections with line highlighting.See the documentation of SoBoxHighlightRenderAction. More...

#include <Inventor/actions/SoLineHighlightRenderAction.h>

Inheritance diagram for SoLineHighlightRenderAction:

Public Member Functions
virtual SoType	getTypeId (void) const

	SoLineHighlightRenderAction (void)

	SoLineHighlightRenderAction (const SbViewportRegion &viewportregion)

virtual	~SoLineHighlightRenderAction (void)

virtual void	apply (SoNode *node)

virtual void	apply (SoPath *path)

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

void	setVisible (const SbBool visible)

SbBool	isVisible (void) const

void	setColor (const SbColor &color)

const SbColor &	getColor (void)

void	setLinePattern (uint16_t pattern)

uint16_t	getLinePattern (void) const

void	setLineWidth (const float width)

float	getLineWidth (void) const

Public Member Functions inherited from SoGLRenderAction
	SoGLRenderAction (const SbViewportRegion &viewportregion)

virtual	~SoGLRenderAction (void)

void	setViewportRegion (const SbViewportRegion &newregion)

const SbViewportRegion &	getViewportRegion (void) const

void	setUpdateArea (const SbVec2f &origin, const SbVec2f &size)

void	getUpdateArea (SbVec2f &origin, SbVec2f &size) const

void	setAbortCallback (SoGLRenderAbortCB const func, void const userdata)

void	getAbortCallback (SoGLRenderAbortCB &func_out, void &userdata_out) const

void	setTransparencyType (const TransparencyType type)

TransparencyType	getTransparencyType (void) const

void	setTransparentDelayedObjectRenderType (TransparentDelayedObjectRenderType type)

TransparentDelayedObjectRenderType	getTransparentDelayedObjectRenderType (void) const

void	setSmoothing (const SbBool smooth)

SbBool	isSmoothing (void) const

void	setNumPasses (const int num)

int	getNumPasses (void) const

void	setPassUpdate (const SbBool flag)

SbBool	isPassUpdate (void) const

void	setPassCallback (SoGLRenderPassCB const func, void const userdata)

void	setCacheContext (const uint32_t context)

uint32_t	getCacheContext (void) const

void	addDelayedPath (SoPath *path)

SbBool	isRenderingDelayedPaths (void) const

SbBool	handleTransparency (SbBool istransparent=FALSE)

void	setCurPass (const int passnum, const int numpasses)

int	getCurPass (void) const

SbBool	abortNow (void)

void	setRenderingIsRemote (SbBool isremote)

SbBool	getRenderingIsRemote (void) const

virtual void	invalidateState (void)

void	addPreRenderCallback (SoGLPreRenderCB func, void userdata)

void	removePreRenderCallback (SoGLPreRenderCB func, void userdata)

void	setSortedLayersNumPasses (int num)

int	getSortedLayersNumPasses (void) const

void	setSortedObjectOrderStrategy (const SortedObjectOrderStrategy strategy, SoGLSortedObjectOrderCB cb=NULL, void closure=NULL)

void	setDelayedObjDepthWrite (SbBool write)

SbBool	getDelayedObjDepthWrite (void) const

SbBool	isRenderingTranspPaths (void) const

SbBool	isRenderingTranspBackfaces (void) const

Public Member Functions inherited from SoAction
virtual	~SoAction (void)

virtual SbBool	isOfType (SoType type) const

void	apply (SoAction *beingApplied)

AppliedCode	getWhatAppliedTo (void) const

SoNode *	getNodeAppliedTo (void) const

SoPath *	getPathAppliedTo (void) const

const SoPathList *	getPathListAppliedTo (void) const

const SoPathList *	getOriginalPathListAppliedTo (void) const

SbBool	isLastPathListAppliedTo (void) const

PathCode	getPathCode (int &numindices, const int *&indices)

void	traverse (SoNode *const node)

SbBool	hasTerminated (void) const

const SoPath *	getCurPath (void)

SoState *	getState (void) const

PathCode	getCurPathCode (void) const

virtual SoNode *	getCurPathTail (void)

void	usePathCode (int &numindices, const int *&indices)

void	pushCurPath (const int childindex, SoNode *node=NULL)

void	popCurPath (const PathCode prevpathcode)

void	pushCurPath (void)

void	popPushCurPath (const int childindex, SoNode *node=NULL)

void	popCurPath (void)

void	switchToPathTraversal (SoPath *path)

void	switchToNodeTraversal (SoNode *node)

Static Public Member Functions
static SoType	getClassTypeId (void)

static void	addMethod (const SoType type, SoActionMethod method)

static void	enableElement (const SoType type, const int stackindex)

static void	initClass (void)

Static Public Member Functions inherited from SoGLRenderAction
static SoType	getClassTypeId (void)

static void	addMethod (const SoType type, SoActionMethod method)

static void	enableElement (const SoType type, const int stackindex)

static void	initClass (void)

Static Public Member Functions inherited from SoAction
static void	initClass (void)

static void	initClasses (void)

static SoType	getClassTypeId (void)

static void	nullAction (SoAction action, SoNode node)

Protected Member Functions
virtual const SoEnabledElementsList &	getEnabledElements (void) const

Protected Member Functions inherited from SoGLRenderAction
virtual void	beginTraversal (SoNode *node)

virtual void	endTraversal (SoNode *node)

Protected Member Functions inherited from SoAction
	SoAction (void)

void	setTerminated (const SbBool flag)

virtual SbBool	shouldCompactPathList (void) const

Static Protected Member Functions
static SoEnabledElementsList *	getClassEnabledElements (void)

static SoActionMethodList *	getClassActionMethods (void)

Static Protected Member Functions inherited from SoGLRenderAction
static SoEnabledElementsList *	getClassEnabledElements (void)

static SoActionMethodList *	getClassActionMethods (void)

Static Protected Member Functions inherited from SoAction
static SoEnabledElementsList *	getClassEnabledElements (void)

static SoActionMethodList *	getClassActionMethods (void)

Protected Attributes
SbBool	hlVisible

Protected Attributes inherited from SoAction
SoState *	state

SoActionMethodList *	traversalMethods

Additional Inherited Members
Public Types inherited from SoGLRenderAction
enum	TransparencyType { SCREEN_DOOR, ADD, DELAYED_ADD, SORTED_OBJECT_ADD, BLEND, DELAYED_BLEND, SORTED_OBJECT_BLEND, SORTED_OBJECT_SORTED_TRIANGLE_ADD, SORTED_OBJECT_SORTED_TRIANGLE_BLEND, NONE, SORTED_LAYERS_BLEND }

enum	TransparentDelayedObjectRenderType { ONE_PASS, NONSOLID_SEPARATE_BACKFACE_PASS }

enum	AbortCode { CONTINUE, ABORT, PRUNE, DELAY }

enum	SortedObjectOrderStrategy { BBOX_CENTER, BBOX_CLOSEST_CORNER, BBOX_FARTHEST_CORNER, CUSTOM_CALLBACK }

typedef AbortCode	SoGLRenderAbortCB(void *userdata)

Public Types inherited from SoAction
enum	AppliedCode { NODE = 0, PATH = 1, PATH_LIST = 2 }

enum	PathCode { NO_PATH = 0, IN_PATH = 1, BELOW_PATH = 2, OFF_PATH = 3 }

Detailed Description

The SoLineHighlightRenderAction class renders selections with line highlighting.

See the documentation of SoBoxHighlightRenderAction.

The only difference between SoBoxHighlightRenderAction and this action is that this action renders highlights by superposing a wireframe image onto each shape instead of the bounding box when drawing the highlight.

Note: an important limitation for this rendering action is that the superimposition of a wireframe is only guaranteed to work correctly for filled shapes, due to a limitation in OpenGL's glPolygonOffset() functionality. For more information, see the class documentation of the SoPolygonOffset node.

See also: SoBoxHighlightRenderAction, SoSelection

Constructor & Destructor Documentation

SoLineHighlightRenderAction::SoLineHighlightRenderAction ( void )

Default constructor. Note: passes a default SbViewportRegion to the parent constructor.

SoLineHighlightRenderAction::SoLineHighlightRenderAction ( const SbViewportRegion & viewportregion )

Constructor, taking an explicit viewportregion to render.

SoLineHighlightRenderAction::~SoLineHighlightRenderAction ( void )

virtual

The destructor.

Member Function Documentation

SoType SoLineHighlightRenderAction::getTypeId ( void ) const

virtual

Returns the type identification of an action derived from a class inheriting SoAction. This is used for run-time type checking and "downward" casting.

Usage example:

void bar(SoAction * action)
{
  if (action->getTypeId() == SoGLRenderAction::getClassTypeId()) {
    // safe downward cast, know the type
    SoGLRenderAction * glrender = (SoGLRenderAction *)action;
  }
  return; // ignore if not renderaction
}

For application programmers wanting to extend the library with new actions: this method needs to be overridden in all subclasses. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through Inventor/nodes/SoSubAction.h: SO_ACTION_SOURCE, SO_ACTION_INIT_CLASS and SO_ACTION_CONSTRUCTOR.

For more information on writing Coin extensions, see the SoAction class documentation.

Returns the actual type id of an object derived from a class inheriting SoAction. Needs to be overridden in all subclasses.

Reimplemented from SoGLRenderAction.

void SoLineHighlightRenderAction::addMethod	(	const SoType	type,
		SoActionMethod	method
	)

static

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

void SoLineHighlightRenderAction::enableElement	(	const SoType	type,
		const int	stackindex
	)

static

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

const SoEnabledElementsList & SoLineHighlightRenderAction::getEnabledElements ( void ) const

protectedvirtual

Returns a list of the elements used by action instances of this class upon traversal operations.

Reimplemented from SoGLRenderAction.

void SoLineHighlightRenderAction::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.

void SoLineHighlightRenderAction::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.

void SoLineHighlightRenderAction::apply	(	const SoPathList &	pathlist,
		SbBool	obeysrules = `FALSE`
	)

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.

void SoLineHighlightRenderAction::setVisible ( const SbBool visible )

Sets if highlight wireframes should be visible when rendering. Defaults to TRUE.

SbBool SoLineHighlightRenderAction::isVisible ( void ) const

Return if selection wireframes should be visible.

void SoLineHighlightRenderAction::setColor ( const SbColor & color )

Sets the color of the wireframes. Defaults to red.

const SbColor & SoLineHighlightRenderAction::getColor ( void )

Returns color of selection wireframes.

void SoLineHighlightRenderAction::setLinePattern ( uint16_t pattern )

Sets the line pattern used when drawing wireframes. Defaults to 0xffff (i.e. full, unstippled lines).

uint16_t SoLineHighlightRenderAction::getLinePattern ( void ) const

Returns line pattern used when drawing wireframe.

void SoLineHighlightRenderAction::setLineWidth ( const float width )

Sets the line width used when drawing wireframe. Defaults to 3 (measured in screen pixels).

float SoLineHighlightRenderAction::getLineWidth ( void ) const

Returns the line width used when drawing wireframe.

Member Data Documentation

SoLineHighlightRenderAction::hlVisible

protected

Boolean which decides whether or not the highlights for selected nodes should be visible.

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

SoLineHighlightRenderAction.h
SoLineHighlightRenderAction.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation