LayoutPathImpl.SegmentPathBuilder

extends Object

java.lang.Object
↳	sun.font.LayoutPathImpl.SegmentPathBuilder

Class Overview

Use to build a SegmentPath. This takes the data and preanalyzes it for information that the SegmentPath needs, then constructs a SegmentPath from that. Mainly, this lets SegmentPath cache the lengths along the path to each line segment, and so avoid calculating them over and over.

Summary

Public Constructors
	LayoutPathImpl.SegmentPathBuilder() Construct a SegmentPathBuilder.

Public Methods
LayoutPathImpl.SegmentPath	build(LayoutPathImpl.EndType etype, double... pts) Automatically build from a list of points represented by pairs of doubles.
LayoutPathImpl.SegmentPath	complete()
LayoutPathImpl.SegmentPath	complete(LayoutPathImpl.EndType etype) Complete building a SegmentPath.
void	lineTo(double x, double y) Connect to a new point.
void	moveTo(double x, double y) Move to a new point.
void	reset(int datalen) Reset the builder for a new path.

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Inherited Methods

From class java.lang.Object

Object	clone() Creates and returns a copy of this object.
boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
final Class<?>	getClass() Returns the runtime class of this `Object`.
int	hashCode() Returns a hash code value for the object.
final void	notify() Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
String	toString() Returns a string representation of the object.
final void	wait() Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
final void	wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
final void	wait(long timeout) Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.

Public Constructors

public LayoutPathImpl.SegmentPathBuilder ()

Construct a SegmentPathBuilder.

Public Methods

public LayoutPathImpl.SegmentPath build (LayoutPathImpl.EndType etype, double... pts)

Automatically build from a list of points represented by pairs of doubles. Initial advance is zero.

public LayoutPathImpl.SegmentPath complete ()

public LayoutPathImpl.SegmentPath complete (LayoutPathImpl.EndType etype)

Complete building a SegmentPath. Once this is called, the builder is restored to its initial state and information about the previous path is released. The end type indicates whether to treat the path as closed, extended, or pinned.

public void lineTo (double x, double y)

Connect to a new point. If there is no data, the previous point is presumed to be 0, 0. This point is checked against the previous point, and if different, this point is added to the path and the advance extended. If this point is the same as the previous point, the path remains unchanged.

public void moveTo (double x, double y)

Move to a new point. If there is no data, this will become the first point. If there is data, and the previous call was a lineTo, this point is checked against the previous point, and if different, this starts a new segment at the same advance as the end of the last segment. If there is data, and the previous call was a moveTo, this replaces the point used for that previous call. Calling this is optional, lineTo will suffice and the initial point will be set to 0, 0.

public void reset (int datalen)

Reset the builder for a new path. Datalen is a hint of how many points will be in the path, and the working buffer will be sized to accomodate at least this number of points. If datalen is zero, the working buffer is freed (it will be allocated on first use).

Interfaces

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