Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/**
* Copyright (c) The openTCS Authors.
*
* This program is free software and subject to the MIT license. (For details,
* see the licensing information (LICENSE.txt) you should have received with
* this copy of the software.)
*/
package org.opentcs.guing.common.event;
import java.util.EventObject;
import java.util.List;
import java.util.Objects;
import org.jhotdraw.draw.DrawingEditor;
import org.jhotdraw.draw.Figure;
/**
* Event object that a DrawingEditor fires when a Figure object was selected,
* added or removed.
*
* @see DrawingEditorListener
*/
public class DrawingEditorEvent
extends
EventObject {
/**
* The affected Figure objects.
*/
private final List fFigures;
/**
* Creates a new instance.
*
* @param editor The event source.
* @param figures The affected figures.
*/
public DrawingEditorEvent(DrawingEditor editor, List figures) {
super(editor);
fFigures = Objects.requireNonNull(figures);
}
/**
* Creates a new instance for a single figure.
*
* @param editor The event source.
* @param figure The affected figure.
*/
public DrawingEditorEvent(DrawingEditor editor, Figure figure) {
super(editor);
fFigures = List.of(figure);
}
/**
* Checks whether this event references at least one figure.
*
* @return true if, and only if, this event references at least
* one figure.
*/
public boolean hasFigure() {
return !fFigures.isEmpty();
}
/**
* Returns the originating DrawingEditor.
*
* @return The originating DrawingEditor.
*/
public DrawingEditor getDrawingEditor() {
return (DrawingEditor) getSource();
}
/**
* Returns the affected Figure objects.
*
* @return The affected Figure objects.
*/
public List getFigures() {
return fFigures;
}
/**
* Returns the first affected figure.
*
* @return The first affected figure.
*/
public Figure getFigure() {
if (!fFigures.isEmpty()) {
return fFigures.get(0);
}
else {
return null;
}
}
/**
* Returns the number of affected figures.
*
* @return The number of affected figures.
*/
public int getCount() {
return fFigures.size();
}
}
