JavaFX 27 · com.sun.javafx.sg.prism.NGNode · APIdia, the JavaDoc alternative

Modifier and Type	Class and Description
public static enum	NGNode.DirtyFlag
private static class	NGNode.EffectDirtyBoundsHelper
private static class	NGNode.PassThrough A custom effect implementation that has a filter() method that simply wraps the given pre-rendered PrDrawable in an ImageData and returns that result.
protected static enum	NGNode.RenderRootResult * Identifying render roots * *

Field Summary

Modifier and Type	Field and Description
private CacheFilter	cacheFilter A filter used when the node is cached.
protected boolean	childDirty If this node is an NGGroup, then this flag will be used to indicate whether one or more of its children is dirty.
private NGNode	clipNode The node used for specifying the clipping shape for this node.
protected BaseBounds	contentBounds The cached bounds.
protected int	cullingBits Marks position of this node in dirty regions.
private boolean	depthTest The depth test flag for this node.
protected NGNode.DirtyFlag	dirty Indicates that this NGNode is itself dirty and needs its full bounds included in the next repaint.
protected static final int	DIRTY_CHILDREN_ACCUMULATED_THRESHOLD Do not iterate over all children in group.
pack-priv static final int	DIRTY_REGION_CONTAINS_NODE_BOUNDS
pack-priv static final int	DIRTY_REGION_CONTAINS_OR_INTERSECTS_NODE_BOUNDS
pack-priv static final int	DIRTY_REGION_INTERSECTS_NODE_BOUNDS Statics for defining what the culling bits are.
pack-priv BaseBounds	dirtyBounds We keep a reference to the last transform bounds that were valid and known.
protected int	dirtyChildrenAccumulated How many children are going to be accumulated
private EffectFilter	effectFilter A filter used whenever an effect is placed on the node.
private static final Boolean	effectsSupported
private DirtyHint	hint
private boolean	isClip True if this node is a clip.
private String	name Used for debug purposes.
private Blend.Mode	nodeBlendMode The blend mode that controls how the pixels of this node blend into the rest of the scene behind it.
private float	opacity The opacity of this node.
private RectBounds	opaqueRegion A cached representation of the opaque region for this node.
private boolean	opaqueRegionInvalid To avoid object churn we keep opaqueRegion around, and just toggle this boolean to indicate whether we need to recompute the opaqueRegion.
private int	painted Used for debug purposes.
private NGNode	parent The parent of the node.
private static final GraphicsPipeline	pipeline
private static final BoxBounds	TEMP_BOUNDS Temporary bounds for use by this class or subclasses, designed to reduce the amount of garbage we generate.
private static Point2D[]	TEMP_POINTS2D_4
private static final RectBounds	TEMP_RECT_BOUNDS
protected static final Affine3D	TEMP_TRANSFORM
private BaseTransform	transform The transform for this node.
protected BaseBounds	transformedBounds The cached transformed bounds.
private double	viewOrder The view order of this node.
private boolean	visible Whether the node is visible.

Access	Constructor and Description
protected	NGNode()

Method Summary

Modifier and Type	Method and Description
public int	Returns: The dirty region container. If the returned value is null, then that means the clip should be used as the dirty region. This is a special case indicating that there is no more need to walk the tree but we can take a shortcut. Note that returning null is always safe. Returning something other than null is simply an optimization for cases where the dirty region is substantially smaller than the clip. Todo Only made non-final for the sake of testing (see javafx-sg-prism tests) (JDK-8090845) accumulateDirtyRegions(final RectBounds must not be null, the clip in scene coordinates, supplied by the rendering system. At most, this is usually the bounds of the window's content area, however it might be smaller. clip, final RectBounds must not be null, the dirty region in scene coordinates. When this method is initially invoked by the rendering system, the dirtyRegion should be marked as invalid. dirtyRegionTemp, DirtyRegionPool regionPool, final DirtyRegionContainer must not be null, the container of dirty regions in scene coordinates. dirtyRegionContainer, final BaseTransform must not be null, the accumulated transform up to but not including this node's transform. When this method concludes, it must restore this transform if it was changed within the function. tx, final GeneralTransform3D must not be null, it's the perspective transform of the current perspective camera or identity transform if parallel camera is used. pvTx) Accumulates and returns the dirty regions in transformed coordinates for this node.
pack-priv int	accumulateGroupDirtyRegion(final RectBounds clip, final RectBounds dirtyRegionTemp, final DirtyRegionPool regionPool, DirtyRegionContainer dirtyRegionContainer, final BaseTransform tx, final GeneralTransform3D pvTx) Accumulates the dirty region of an NGGroup.
pack-priv int	accumulateNodeDirtyRegion(final RectBounds clip, final RectBounds dirtyRegionTemp, final DirtyRegionContainer dirtyRegionContainer, final BaseTransform tx, final GeneralTransform3D pvTx) Accumulates the dirty region of a node.
public void	applyClip(final BaseBounds clipBounds, DirtyRegionContainer drc)
public void	applyEffect(final EffectFilter effectFilter, DirtyRegionContainer drc, DirtyRegionPool regionPool)
public void	applyTransform(final BaseTransform tx, DirtyRegionContainer drc)
private static int	ccw(double px, double py, Point2D a, Point2D b)
pack-priv static boolean	checkBoundsInQuad(RectBounds untransformedQuad, RectBounds innerBounds, BaseTransform tx, GeneralTransform3D pvTx)
public void	clearDirty() Clears the dirty flag.
public void	clearPainted() Walks down the tree clearing the "painted" bits for each node.
private BaseBounds	computeBounds(BaseBounds bounds, BaseTransform tx)
private BaseBounds	computeDirtyRegion(final RectBounds A temporary RectBounds that this method can use for scratch. In the case that no perspective transform occurs, it is best if the returned BaseBounds is this instance. dirtyRegionTemp, final BaseTransform Any transform that needs to be applied tx, final GeneralTransform3D must not be null, it's the perspective transform of the current perspective camera or identity transform if parallel camera is used. pvTx) Computes the dirty region for this Node.
pack-priv final NGNode.RenderRootResult	Returns: NO_RENDER_ROOT if this node does not have an opaque region that fills the entire dirty region. Returns HAS_RENDER_ROOT if the opaque region fills the dirty region. computeNodeRenderRoot(NodePath the NodePath to populate with the path to the render root. Cannot be null. path, RectBounds the current dirty region. Cannot be null. dirtyRegion, int index of culling information, -1 means culling information should not be used cullingIndex, BaseTransform current transform. Cannot be null. tx, GeneralTransform3D current perspective transform. Cannot be null. pvTx) Check if this node can serve as rendering root for this dirty region.
protected RectBounds	computeOpaqueRegion(RectBounds opaqueRegion) Computes and returns the opaque region for this node.
protected BaseBounds	computePadding(BaseBounds region) LCD Text creates some painful situations where, due to the LCD text algorithm, we end up with some pixels touched that are normally outside the bounds.
pack-priv NGNode.RenderRootResult	Returns: The result of visiting this node. computeRenderRoot(NodePath the NodePath to populate with the path to the render root. Cannot be null. path, RectBounds the current dirty region. Cannot be null. dirtyRegion, int index of culling information cullingIndex, BaseTransform current transform. Cannot be null. tx, GeneralTransform3D current perspective transform. Cannot be null. pvTx) Searches for the last node that covers all of the specified dirty region with an opaque region, in this node's subtree.
public final void	doPreCulling(DirtyRegionContainer Array of dirty regions. Cannot be null. drc, BaseTransform The transform for this render operation. Cannot be null. tx, GeneralTransform3D Perspective camera transformation. Cannot be null. pvTx) Culling support for multiple dirty regions.
protected void	doRender(Graphics g) Invoked only by the final render method.
public void	drawDirtyOpts(final BaseTransform The scene->parent transform. tx, final GeneralTransform3D The perspective camera transform. pvTx, Rectangle The bounds in scene coordinates clipBounds, int[] A pixel array where each pixel contains a color indicating how many times it has been "drawn" colorBuffer, int the index of the dirty region we're gathering information for. This is needed so we can shift the "painted" field to find out if this node was drawn in this dirty region. dirtyRegionIndex) Helper method draws rectangles indicating the overdraw rectangles.
public void	effectChanged() Called by the FX scene graph when an effect in the effect chain on the node changes internally.
protected void	geometryChanged()
public final CacheFilter	getCacheFilter()
public final NGNode	getClipNode()
public final BaseBounds	getClippedBounds(BaseBounds bounds, BaseTransform tx)
public final BaseBounds	getCompleteBounds(BaseBounds bounds, BaseTransform tx)
public BaseBounds	getContentBounds(BaseBounds bounds, BaseTransform tx)
protected final Effect	getEffect()
public final BaseBounds	getEffectBounds(BaseBounds bounds, BaseTransform tx)
public final EffectFilter	getEffectFilter()
pack-priv static FilterContext	getFilterContext(Graphics g) * Filters (Cache, Effect, etc).
public final String	getName() Used for debug purposes.
public final Blend.Mode	getNodeBlendMode()
public final float	getOpacity()
public final RectBounds	Returns: The opaque region for this node, or null. getOpaqueRegion() Gets the opaque region for this node, if there is one, or returns null.
public NGNode	getParent() Gets the parent of this node.
public final void	getRenderRoot(NodePath node path to store the node path path, RectBounds dirtyRegion, int cullingIndex, BaseTransform tx, GeneralTransform3D pvTx) Called after preCullingBits in order to get the node from which we should begin drawing.
public final BaseTransform	getTransform()
protected boolean	Returns: Whether this NGNode currently has an opaque region. hasOpaqueRegion() Called only on NGNode subclasses which override `supportsOpaqueRegions()` to return true, this method will return whether or not this NGNode is in a state where it has an opaque region to actually return.
protected abstract boolean	hasOverlappingContents()
protected boolean	Returns: true if the node has some visuals hasVisuals() Marks if the node has some visuals and that the bounds change should be taken into account when using the dirty region.
protected final void	invalidateCache() Invalidates the cache, if it is in use.
protected final void	invalidateCacheByTranslation(DirtyHint hint) Mark the cache as invalid due to a translation of a child.
protected final void	invalidateOpaqueRegion() Invalidates any cached representation of the opaque region for this node.
public final boolean	isClean() Gets whether this SGNode is clean.
public boolean	isContentBounds2D() Return true if contentBounds is purely a 2D bounds, ie.
public final boolean	isDepthTest()
pack-priv final boolean	Returns: value of opaqueRegionInvalid isOpaqueRegionInvalid() This method exists only for the sake of testing.
pack-priv boolean	isReadbackSupported(Graphics g) * Static Helper Methods.
protected boolean	Returns: whether this rectangle is axis aligned when rendered given node's and rendering transform isRectClip(BaseTransform xform, boolean permitRoundedRectangle) Returns whether a clip represented by this node can be rendered using axis aligned rect clip.
pack-priv boolean	isShape3D()
public boolean	isVisible() Gets whether this node's visible property is set
pack-priv void	markCullRegions(DirtyRegionContainer The array of dirty regions. drc, int culling bits of parent. -1 if there's no parent. cullingRegionsBitsOfParent, BaseTransform The transform for this render operation. Cannot be null. tx, GeneralTransform3D Perspective camera transform. Cannot be null. pvTx) Marks placement of the node in dirty region encoded into 2 bit flag: 00 - node outside dirty region 01 - node intersecting dirty region 11 - node completely within dirty region 32 bits = 15 regions max.
public final void	markDirty() Makes this node dirty, meaning that it needs to be included in the next repaint to the back buffer, and its bounds should be included in the dirty region.
private void	markDirtyByTranslation() Mark the node as DIRTY_BY_TRANSLATION.
protected final void	markTreeDirty() Notifies the parent (whether an NGGroup or just a NGNode) that a child has become dirty.
protected final void	markTreeDirtyNoIncrement()
protected boolean	Returns: true if this node needs special blending support needsBlending() Return true if this node has a blend mode that requires special processing.
private static boolean	pointInConvexQuad(double x, double y, Point2D[] rect)
public final void	printDirtyOpts(StringBuilder A StringBuilder to fill with the output. s, List<NGNode> The list of render roots (may be empty, must not be null). roots) Fills the given StringBuilder with text representing the structure of the NG graph insofar as dirty opts is concerned.
private final void	printDirtyOpts(StringBuilder The String builder s, NGNode The node that we're printing out information about node, BaseTransform The transform tx, String Some prefix to put in front of the node output (mostly spacing) prefix, List<NGNode> The different dirty roots, if any. roots) Used for debug purposes.
public void	release() * Stuff * *
public final void	render(Graphics The graphics object we're rendering to. This must never be null. g) Render the tree of nodes to the specified G (graphics) object descending from this node as the root.
private void	renderCached(Graphics g)
pack-priv void	renderClip(Graphics g)
protected abstract void	renderContent(Graphics g)
protected void	renderEffect(Graphics g)
public void	renderForcedContent(Graphics the Graphics object that was used to render the Scene, or null gOptional) Called on every render pulse for all nodes in case they have render-time operations that must be completed on a pulse, but were not otherwise rendered by the ordinary damage management logic.
pack-priv void	renderForClip(Graphics g)
private void	renderNodeBlendMode(Graphics g)
private void	renderOpacity(Graphics g)
private void	renderRectClip(Graphics g, Rectangle clipRect)
public void	setCachedAsBitmap(boolean specifies whether or not this node should be cached cached, CacheHint never null, indicates some hint as to how to cache cacheHint) Called by the FX scene graph whenever "cached" or "cacheHint" changes.
public void	setClipNode(NGNode can be null if the clip node is being cleared clipNode) Called by the FX scene graph whenever the clip node for this node changes.
public void	setContentBounds(BaseBounds must not be null bounds) Called by the FX scene graph to tell us what our new content bounds are.
public void	setDepthTest(boolean indicates whether to perform a depth test operation (if the window has a depth buffer). depthTest) Called by the FX scene graph whenever the derived depth test flag for the node changes.
public void	setEffect(Effect the effect (can be null to clear it) effect) Called by the FX scene graph to set the effect.
public final void	setName(String value) Used for debug purposes.
public void	setNodeBlendMode(Blend.Mode may be null to indicate "default" blendMode) Set by the FX scene graph.
public void	setOpacity(float A value between 0 and 1. opacity) Called by the FX scene graph whenever the opacity for the node changes.
public void	setParent(NGNode parent) Only called by this class, or by the NGGroup class.
private void	setParent(NGNode parent, boolean isClip)
public void	setTransformedBounds(BaseBounds must not be null bounds, boolean byTransformChangeOnly) Called by the FX scene graph to tell us what our transformed bounds are.
public void	setTransformMatrix(BaseTransform must not be null tx) Called by the FX scene graph to tell us what our transform matrix is.
public void	setViewOrder(double A value between the range of negative Double.MAX_VALUE and positive Double.MAX_VALUE. viewOrder) Called by the FX scene graph whenever the view order for the node changes.
public void	setVisible(boolean whether it is visible value) Called by the FX scene graph to tell us whether we should be visible or not.
protected boolean	Returns: Whether this NGNode implementation supports opaque regions. This could also have been implemented via an interface that some NGNodes implemented, but then we'd have instanceof checks which I'd rather avoid. supportsOpaqueRegions() Gets whether this NGNode supports opaque regions at all.
public String	toString() Overrides java.lang.Object.toString. Returns a string representation of the object.
protected void	visualsChanged() Invoked by subclasses whenever some change to the geometry or visuals has occurred.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll wait wait wait

public abstract Class NGNode

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary