org.eclipse.swt.events.MouseEvent Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2008, 2012 Innoopract Informationssysteme GmbH and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Innoopract Informationssysteme GmbH - initial API and implementation
* EclipseSource - ongoing development
******************************************************************************/
package org.eclipse.swt.events;
import org.eclipse.swt.widgets.Event;
/**
* Instances of this class are sent whenever mouse
* related actions occur. This includes mouse buttons
* being pressed and released, the mouse pointer being
* moved and the mouse pointer crossing widget boundaries.
*
* Note: The button field is an integer that
* represents the mouse button number. This is not the same
* as the SWT mask constants BUTTONx.
*
*
* @see MouseListener
* @see MouseMoveListener
* @see MouseTrackListener
*
* @since 1.1
*/
public class MouseEvent extends TypedEvent {
private static final long serialVersionUID = 1L;
/**
* the button that was pressed or released; 1 for the
* first button, 2 for the second button, and 3 for the
* third button, etc.
*/
public int button;
/**
* the state of the keyboard modifier keys at the time
* the event was generated
*
* @since 1.3
*/
public int stateMask;
/**
* the widget-relative, x coordinate of the pointer
* at the time the mouse button was pressed or released
*/
public int x;
/**
* the widget-relative, y coordinate of the pointer
* at the time the mouse button was pressed or released
*/
public int y;
/**
* the number times the mouse has been clicked, as defined
* by the operating system; 1 for the first click, 2 for the
* second click and so on.
*
* @since 2.0
*/
public int count;
/**
* Constructs a new instance of this class based on the
* information in the given untyped event.
*
* @param event the untyped event containing the information
*
* @since 1.2
*/
public MouseEvent( Event event ) {
super( event );
x = event.x;
y = event.y;
button = event.button;
stateMask = event.stateMask;
count = event.count;
}
/**
* Returns a string containing a concise, human-readable description of the
* receiver.
*
* @return a string representation of the event
*/
@Override
public String toString() {
String string = super.toString();
return string.substring( 0, string.length() - 1 ) // remove trailing '}'
+ " button="
+ button
+ " stateMask="
+ stateMask
+ " x="
+ x
+ " y="
+ y
+ " count="
+ count
+ "}";
}
}