org.eclipse.gef4.mvc.fx.operations

Class FXChangeViewportOperation

java.lang.Object

org.eclipse.core.commands.operations.AbstractOperation

org.eclipse.gef4.mvc.fx.operations.FXChangeViewportOperation

All Implemented Interfaces:

IUndoableOperation

public class FXChangeViewportOperation
extends AbstractOperation

The FXChangeViewportOperation can be used to alter a ViewportModel. It is used by scroll/pan and zoom policies.

Field Summary

Fields

Modifier and Type	Field and Description
protected double	newHeight
protected AffineTransform	newTransform
protected double	newTx
protected double	newTy
protected double	newWidth
protected double	oldHeight
protected AffineTransform	oldTransform
protected double	oldTx
protected double	oldTy
protected double	oldWidth
protected ViewportModel	viewportModel

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FXChangeViewportOperation(ViewportModel viewportModel)
	FXChangeViewportOperation(ViewportModel viewportModel, AffineTransform newTransform)
	FXChangeViewportOperation(ViewportModel viewportModel, AffineTransform newTransform, double newTx, double newTy)
	FXChangeViewportOperation(ViewportModel viewportModel, AffineTransform newTransform, double newTx, double newTy, double newWidth, double newHeight)
	FXChangeViewportOperation(ViewportModel viewportModel, double newTx, double newTy)

Method Summary

Modifier and Type	Method and Description
void	concatenateToNewTransform(AffineTransform t)
IStatus	execute(IProgressMonitor monitor, IAdaptable info)
protected void	readViewport(ViewportModel viewportModel) Stores all relevant values in fields, so that they can be restored later.
IStatus	redo(IProgressMonitor monitor, IAdaptable info)
IStatus	undo(IProgressMonitor monitor, IAdaptable info)

Methods inherited from class org.eclipse.core.commands.operations.AbstractOperation

addContext, canExecute, canRedo, canUndo, dispose, getContexts, getLabel, hasContext, removeContext, setLabel, toString

Methods inherited from class java.lang.Object

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

Field Detail

viewportModel

protected ViewportModel viewportModel

oldWidth

protected double oldWidth

newWidth

protected double newWidth

oldHeight

protected double oldHeight

newHeight

protected double newHeight

oldTransform

protected AffineTransform oldTransform

newTransform

protected AffineTransform newTransform

oldTx

protected double oldTx

newTx

protected double newTx

oldTy

protected double oldTy

newTy

protected double newTy

Constructor Detail

FXChangeViewportOperation

protected FXChangeViewportOperation(ViewportModel viewportModel)

FXChangeViewportOperation

public FXChangeViewportOperation(ViewportModel viewportModel,
                                 AffineTransform newTransform)

FXChangeViewportOperation

public FXChangeViewportOperation(ViewportModel viewportModel,
                                 AffineTransform newTransform,
                                 double newTx,
                                 double newTy)

FXChangeViewportOperation

public FXChangeViewportOperation(ViewportModel viewportModel,
                                 AffineTransform newTransform,
                                 double newTx,
                                 double newTy,
                                 double newWidth,
                                 double newHeight)

FXChangeViewportOperation

public FXChangeViewportOperation(ViewportModel viewportModel,
                                 double newTx,
                                 double newTy)

Method Detail

concatenateToNewTransform

public void concatenateToNewTransform(AffineTransform t)

execute

public IStatus execute(IProgressMonitor monitor,
                       IAdaptable info)
                throws ExecutionException

Specified by:

execute in interface IUndoableOperation

Specified by:

execute in class AbstractOperation

Throws:

ExecutionException

readViewport

protected void readViewport(ViewportModel viewportModel)

Stores all relevant values in fields, so that they can be restored later.

Parameters:

viewportModel - The ViewportModel from which the values are read.

redo

public IStatus redo(IProgressMonitor monitor,
                    IAdaptable info)
             throws ExecutionException

Specified by:

redo in interface IUndoableOperation

Specified by:

redo in class AbstractOperation

Throws:

ExecutionException

undo

public IStatus undo(IProgressMonitor monitor,
                    IAdaptable info)
             throws ExecutionException

Specified by:

undo in interface IUndoableOperation

Specified by:

undo in class AbstractOperation

Throws:

ExecutionException