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SoLineHighlightRenderAction Class Reference

The SoLineHighlightRenderAction class renders selections with line highlighting. More...

#include <Inventor/actions/SoLineHighlightRenderAction.h>

Inheritance diagram for SoLineHighlightRenderAction:
SoGLRenderAction SoAction

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 SbColorgetColor (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 SbViewportRegiongetViewportRegion (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
 
SoNodegetNodeAppliedTo (void) const
 
SoPathgetPathAppliedTo (void) const
 
const SoPathListgetPathListAppliedTo (void) const
 
const SoPathListgetOriginalPathListAppliedTo (void) const
 
SbBool isLastPathListAppliedTo (void) const
 
PathCode getPathCode (int &numindices, const int *&indices)
 
void traverse (SoNode *const node)
 
SbBool hasTerminated (void) const
 
const SoPathgetCurPath (void)
 
SoStategetState (void) const
 
PathCode getCurPathCode (void) const
 
virtual SoNodegetCurPathTail (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 SoEnabledElementsListgetEnabledElements (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 SoEnabledElementsListgetClassEnabledElements (void)
 
static SoActionMethodListgetClassActionMethods (void)
 
- Static Protected Member Functions inherited from SoGLRenderAction
static SoEnabledElementsListgetClassEnabledElements (void)
 
static SoActionMethodListgetClassActionMethods (void)
 
- Static Protected Member Functions inherited from SoAction
static SoEnabledElementsListgetClassEnabledElements (void)
 
static SoActionMethodListgetClassActionMethods (void)
 

Protected Attributes

SbBool hlVisible
 
- Protected Attributes inherited from SoAction
SoStatestate
 
SoActionMethodListtraversalMethods
 

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() [1/2]

SoLineHighlightRenderAction::SoLineHighlightRenderAction ( void  )

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

◆ SoLineHighlightRenderAction() [2/2]

SoLineHighlightRenderAction::SoLineHighlightRenderAction ( const SbViewportRegion viewportregion)

Constructor, taking an explicit viewportregion to render.

◆ ~SoLineHighlightRenderAction()

SoLineHighlightRenderAction::~SoLineHighlightRenderAction ( void  )
virtual

The destructor.

Member Function Documentation

◆ getTypeId()

SoType SoLineHighlightRenderAction::getTypeId ( void  ) const
virtual

Returns the type identification of an action derived from a class inheriting SoAction. This is used for runtime 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 render action
}

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 predefined 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.

◆ addMethod()

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.

◆ enableElement()

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.

◆ getEnabledElements()

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.

◆ apply() [1/3]

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.

◆ apply() [2/3]

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.

◆ apply() [3/3]

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.

◆ setVisible()

void SoLineHighlightRenderAction::setVisible ( const SbBool  visible)

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

◆ isVisible()

SbBool SoLineHighlightRenderAction::isVisible ( void  ) const

Return if selection wireframes should be visible.

◆ setColor()

void SoLineHighlightRenderAction::setColor ( const SbColor color)

Sets the color of the wireframes. Defaults to red.

◆ getColor()

const SbColor & SoLineHighlightRenderAction::getColor ( void  )

Returns color of selection wireframes.

◆ setLinePattern()

void SoLineHighlightRenderAction::setLinePattern ( uint16_t  pattern)

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

◆ getLinePattern()

uint16_t SoLineHighlightRenderAction::getLinePattern ( void  ) const

Returns line pattern used when drawing wireframe.

◆ setLineWidth()

void SoLineHighlightRenderAction::setLineWidth ( const float  width)

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

◆ getLineWidth()

float SoLineHighlightRenderAction::getLineWidth ( void  ) const

Returns the line width used when drawing wireframe.

Member Data Documentation

◆ hlVisible

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: