Module org.jhotdraw8.geom

Package org.jhotdraw8.geom

Class NineRegionsScalingBuilder<T>

java.lang.Object

org.jhotdraw8.geom.AbstractPathBuilder<T>

org.jhotdraw8.geom.NineRegionsScalingBuilder<T>

Type Parameters:

T - the product type

All Implemented Interfaces:

PathBuilder<T>

public class NineRegionsScalingBuilder<T>
extends AbstractPathBuilder<T>

This builder slices the input path into 9 regions, and scales them by the specified scale factor and pivot.

The builder takes a four values minx, miny, maxx, maxy as input, or a rectangle and insets from which these four values are computed.

The coordinate space is split along minx, miny, maxx, maxy into 9 pieces: top-left, top-right, bottom-right, bottom-left, top, right, bottom, left, center.

• the top left piece is translated by the scaled distance from the left and the top inset to the pivot.
• similar translations are applied to the top right, bottom right and bottom left pieces.
• the top piece is translated by the scaled distance from the top inset to the pivot,and scaled by the sx-factor of the scaling.
• similar transformations are applied to the right, bottom and left pieces.
• the piece in the center is scaled by the scale factor around the pivot

Author:

Werner Randelshofer

Constructor Summary

Constructors

Constructor	Description
NineRegionsScalingBuilder(@NonNull PathBuilder<T> dest, @NonNull javafx.geometry.Bounds srcBounds, @NonNull javafx.geometry.Insets srcInsets, @NonNull javafx.geometry.Bounds destBounds)	Creates a new instance.

Method Summary

Modifier and Type	Method	Description
@Nullable T	build()	Builds something.
protected void	doClosePath(double lastX, double lastY, double lastMoveToX, double lastMoveToY)
protected void	doCurveTo(double lastX, double lastY, double x1, double y1, double x2, double y2, double x3, double y3)
protected void	doLineTo(double lastX, double lastY, double x, double y)
protected void	doMoveTo(double x, double y)
protected void	doPathDone()
protected void	doQuadTo(double lastX, double lastY, double x1, double y1, double x2, double y2)

Methods inherited from class org.jhotdraw8.geom.AbstractPathBuilder

arcTo, closePath, curveTo, doArcTo, doSmoothCurveTo, doSmoothQuadTo, getLastCX, getLastCY, getLastMoveToX, getLastMoveToY, getLastPoint, getLastX, getLastY, lineTo, moveTo, needsMoveTo, pathDone, quadTo, setLastCX, setLastCY, setLastX, setLastY, smoothCurveTo, smoothQuadTo

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.jhotdraw8.geom.PathBuilder

circle, counterClockwiseCircle, curveTo, lineTo, moveTo, quadTo, smoothCurveTo, smoothQuadTo

Constructor Details

NineRegionsScalingBuilder

public NineRegionsScalingBuilder(@NonNull PathBuilder<T> dest,
 @NonNull javafx.geometry.Bounds srcBounds,
 @NonNull javafx.geometry.Insets srcInsets,
 @NonNull javafx.geometry.Bounds destBounds)

Creates a new instance.

Parameters:

dest - The destination (target) of the builder.

srcBounds - The bounds of the source image.

srcInsets - The nine regions in the bounds of the source image.

destBounds - The bounds of the destination image.

Method Details

doClosePath

protected void doClosePath(double lastX,
 double lastY,
 double lastMoveToX,
 double lastMoveToY)

Specified by:

doClosePath in class AbstractPathBuilder<T>

doCurveTo

protected void doCurveTo(double lastX,
 double lastY,
 double x1,
 double y1,
 double x2,
 double y2,
 double x3,
 double y3)

Specified by:

doCurveTo in class AbstractPathBuilder<T>

doLineTo

protected void doLineTo(double lastX,
 double lastY,
 double x,
 double y)

Specified by:

doLineTo in class AbstractPathBuilder<T>

doMoveTo

protected void doMoveTo(double x,
 double y)

Specified by:

doMoveTo in class AbstractPathBuilder<T>

doQuadTo

protected void doQuadTo(double lastX,
 double lastY,
 double x1,
 double y1,
 double x2,
 double y2)

Specified by:

doQuadTo in class AbstractPathBuilder<T>

doPathDone

protected void doPathDone()

Specified by:

doPathDone in class AbstractPathBuilder<T>

build

public @Nullable T build()

Description copied from interface: PathBuilder

Builds something.

Some implementations may guarantee a non-null return value.