X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.eclipse.swt.win32.win32.x86_64%2Fsrc%2Forg%2Feclipse%2Fswt%2Fevents%2FMouseTrackAdapter.java;fp=bundles%2Forg.eclipse.swt.win32.win32.x86_64%2Fsrc%2Forg%2Feclipse%2Fswt%2Fevents%2FMouseTrackAdapter.java;h=52664798e82605542eef452085670bf67ee90982;hb=6b98970d0458754dd67f789afbd0a39e1e7ac6eb;hp=0000000000000000000000000000000000000000;hpb=56a61575ce0d27b340cb12438c8a7f303842095e;p=simantics%2Fplatform.git diff --git a/bundles/org.eclipse.swt.win32.win32.x86_64/src/org/eclipse/swt/events/MouseTrackAdapter.java b/bundles/org.eclipse.swt.win32.win32.x86_64/src/org/eclipse/swt/events/MouseTrackAdapter.java new file mode 100644 index 000000000..52664798e --- /dev/null +++ b/bundles/org.eclipse.swt.win32.win32.x86_64/src/org/eclipse/swt/events/MouseTrackAdapter.java @@ -0,0 +1,74 @@ +/******************************************************************************* + * Copyright (c) 2000, 2017 IBM Corporation and others. + * + * This program and the accompanying materials + * are made available under the terms of the Eclipse Public License 2.0 + * which accompanies this distribution, and is available at + * https://www.eclipse.org/legal/epl-2.0/ + * + * SPDX-License-Identifier: EPL-2.0 + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +package org.eclipse.swt.events; + + +/** + * This adapter class provides default implementations for the + * methods described by the MouseTrackListener interface. + *

+ * Classes that wish to deal with MouseEvents which + * occur as the mouse pointer passes (or hovers) over controls can + * extend this class and override only the methods which they are + * interested in. + *

+ *

+ * An alternative to this class are the static helper methods + * {@link MouseTrackListener#mouseEnterAdapter(java.util.function.Consumer)}, + * {@link MouseTrackListener#mouseExitAdapter(java.util.function.Consumer)} + * and + * {@link MouseTrackListener#mouseHoverAdapter(java.util.function.Consumer)}, + * which accept a lambda expression or a method reference that implements the event consumer. + *

+ * + * @see MouseTrackListener + * @see MouseEvent + * @see Sample code and further information + */ +public abstract class MouseTrackAdapter implements MouseTrackListener { + +/** + * Sent when the mouse pointer passes into the area of + * the screen covered by a control. + * The default behavior is to do nothing. + * + * @param e an event containing information about the mouse enter + */ +@Override +public void mouseEnter(MouseEvent e) { +} + +/** + * Sent when the mouse pointer passes out of the area of + * the screen covered by a control. + * The default behavior is to do nothing. + * + * @param e an event containing information about the mouse exit + */ +@Override +public void mouseExit(MouseEvent e) { +} + +/** + * Sent when the mouse pointer hovers (that is, stops moving + * for an (operating system specified) period of time) over + * a control. + * The default behavior is to do nothing. + * + * @param e an event containing information about the hover + */ +@Override +public void mouseHover(MouseEvent e) { +} +}