org.eclipse.gef4.mvc.fx.policies

Class FXResizeRelocatePolicy

java.lang.Object

org.eclipse.gef4.mvc.policies.AbstractPolicy<javafx.scene.Node>

org.eclipse.gef4.mvc.fx.policies.FXResizeRelocatePolicy

All Implemented Interfaces:

IAdaptable.Bound<IVisualPart<javafx.scene.Node,? extends javafx.scene.Node>>, ITransactional, IPolicy<javafx.scene.Node>

public class FXResizeRelocatePolicy
extends AbstractPolicy<javafx.scene.Node>
implements ITransactional

The FXResizeRelocatePolicy is a transactional policy that handles the resize and relocation of its host.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	initialized Stores the initialized flag for this policy, i.e.

Constructor Summary

Constructors

Constructor and Description
FXResizeRelocatePolicy()

Method Summary

Modifier and Type	Method and Description
IUndoableOperation	commit() Returns an IUndoableOperation that performs all manipulations applied by the policy since the last ITransactional.init() call.
protected double	getMinimumHeight() Returns the minimum height.
protected double	getMinimumWidth() Returns the minimum width.
protected FXResizePolicy	getResizePolicy() Returns the FXResizePolicy that is installed on the host.
protected FXTransformPolicy	getTransformPolicy() Returns the FXTransformPolicy that is installed on the host.
void	init() Initializes the policy, so that the policy's "work" methods can be used.
void	performResizeRelocate(double dx, double dy, double dw, double dh) Performs resize and relocation based on the given deltas by using the getTransformPolicy() and getResizePolicy().

Methods inherited from class org.eclipse.gef4.mvc.policies.AbstractPolicy

commit, disableRefreshVisuals, enableRefreshVisuals, getAdaptable, getHost, init, setAdaptable

Methods inherited from class java.lang.Object

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

Field Detail

initialized

protected boolean initialized

Stores the initialized flag for this policy, i.e. true after init() was called, and false after commit() was called, respectively.

Constructor Detail

FXResizeRelocatePolicy

public FXResizeRelocatePolicy()

Method Detail

commit

public IUndoableOperation commit()

Description copied from interface: ITransactional

Returns an IUndoableOperation that performs all manipulations applied by the policy since the last ITransactional.init() call. When called multiple times in sequence, only the first call will yield an operation, the subsequent calls will yield null.

Specified by:

commit in interface ITransactional

Returns:

An IUndoableOperation that performs all manipulations applied by the policy since the last ITransactional.init() call.

getMinimumHeight

protected double getMinimumHeight()

Returns the minimum height. The host cannot be resized below this minimum height.

Returns:

The minimum height.

getMinimumWidth

protected double getMinimumWidth()

Returns the minimum width. The host cannot be resized below this minimum width.

Returns:

The minimum width.

getResizePolicy

protected FXResizePolicy getResizePolicy()

Returns the FXResizePolicy that is installed on the host.

Returns:

The FXResizePolicy that is installed on the host.

getTransformPolicy

protected FXTransformPolicy getTransformPolicy()

Returns the FXTransformPolicy that is installed on the host.

Returns:

The FXTransformPolicy that is installed on the host.

init

public void init()

Description copied from interface: ITransactional

Initializes the policy, so that the policy's "work" methods can be used. Calling a "work" method while the policy is not initialized will result in an IllegalStateException. It is safe to call ITransactional.init() multiple times in sequence.

Specified by:

init in interface ITransactional

performResizeRelocate

public void performResizeRelocate(double dx,
                                  double dy,
                                  double dw,
                                  double dh)

Performs resize and relocation based on the given deltas by using the getTransformPolicy() and getResizePolicy().

Parameters:

dx - The horizontal relocation delta.

dy - The vertical relocation delta.

dw - The horizontal resize delta.

dh - The vertical resize delta.