org.kie.workbench.common.stunner.client.lienzo.util

Class LienzoShapeUtils

java.lang.Object

org.kie.workbench.common.stunner.client.lienzo.util.LienzoShapeUtils

public class LienzoShapeUtils
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_SOURCE_MAGNET
static int	DEFAULT_TARGET_MAGNET

Constructor Summary

Constructors

Constructor and Description
LienzoShapeUtils()

Method Summary

Modifier and Type	Method and Description
static Magnet[]	getDefaultMagnets(Shape sourceShape, Shape targetShape)
static Magnet[]	getDefaultMagnets(com.ait.lienzo.client.core.shape.wires.WiresShape sourceShape, com.ait.lienzo.client.core.shape.wires.WiresShape targetShape) Obtain the magnet indexes on the source and target shapes.
static com.ait.lienzo.client.core.types.LinearGradient	getLinearGradient(String startColor, String endColor, Double width, Double height)
static com.ait.lienzo.client.core.shape.wires.LayoutContainer.Layout	getWiresLayout(HasChildren.Layout layout)
static void	scalePicture(com.ait.lienzo.client.core.shape.Picture picture, double width, double height)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_SOURCE_MAGNET

public static final int DEFAULT_SOURCE_MAGNET

See Also:

Constant Field Values

DEFAULT_TARGET_MAGNET

public static final int DEFAULT_TARGET_MAGNET

See Also:

Constant Field Values

Constructor Detail

LienzoShapeUtils

public LienzoShapeUtils()

Method Detail

scalePicture

public static void scalePicture(com.ait.lienzo.client.core.shape.Picture picture,
                                double width,
                                double height)

getWiresLayout

public static com.ait.lienzo.client.core.shape.wires.LayoutContainer.Layout getWiresLayout(HasChildren.Layout layout)

getLinearGradient

public static com.ait.lienzo.client.core.types.LinearGradient getLinearGradient(String startColor,
                                                                                String endColor,
                                                                                Double width,
                                                                                Double height)

getDefaultMagnets

public static Magnet[] getDefaultMagnets(com.ait.lienzo.client.core.shape.wires.WiresShape sourceShape,
                                         com.ait.lienzo.client.core.shape.wires.WiresShape targetShape)

Obtain the magnet indexes on the source and target shapes. The resulting index values are on the min distance between the magnets, which is calculated by basic trigonometry on the cartesian coordinates area. To avoid using the magnets on shape's corners, only some concrete magnets will be allowed as result. As arc's and line's magnet points are based cartesian cardinality and it is quite similar on both cases ( see https://www.lienzo-core.com/lienzo-ks/#CARDINAL_INTERSECT ), this implementation will consider only the odd magnet index values as results. TODO: This is enough for the current line/arc support in stunner's shapes, but consider improving this behavior on the future.

getDefaultMagnets

public static Magnet[] getDefaultMagnets(Shape sourceShape,
                                         Shape targetShape)