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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/java/awt/dnd/DragGestureEvent.java
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+/* DragGestureEvent.java --
+ Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package java.awt.dnd;
+
+import java.awt.Component;
+import java.awt.Cursor;
+import java.awt.Image;
+import java.awt.Point;
+import java.awt.datatransfer.Transferable;
+import java.awt.event.InputEvent;
+import java.util.EventObject;
+import java.util.Iterator;
+import java.util.List;
+
+public class DragGestureEvent extends EventObject
+{
+ /**
+ * Compatible with JDK 1.2+.
+ */
+ private static final long serialVersionUID = 9080172649166731306L;
+
+ private DragSource dragSource;
+ private Component component;
+ private final Point origin;
+ private final int action;
+ private List<InputEvent> events;
+ private DragGestureRecognizer dgr;
+
+ /**
+ * Constructs a new DragGestureEvent.
+ * @param dgr - DragGestureRecognizer firing this event
+ * @param action - user's preferred action
+ * @param origin - origin of the drag
+ * @param events - List of events that make up the gesture
+ * @throws IllegalArgumentException - if input parameters are null
+ */
+ public DragGestureEvent(DragGestureRecognizer dgr, int action, Point origin,
+ List<? extends InputEvent> events)
+ {
+ super(dgr);
+ if (origin == null || events == null || dgr == null)
+ throw new IllegalArgumentException();
+
+ this.origin = origin;
+ this.action = action;
+ this.events = (List<InputEvent>) events;
+ this.dgr = dgr;
+ this.component = dgr.getComponent();
+ this.dragSource = dgr.getDragSource();
+ }
+
+ /**
+ * Returns the source casted as a DragGestureRecognizer.
+ *
+ * @return the source casted as a DragGestureRecognizer.
+ */
+ public DragGestureRecognizer getSourceAsDragGestureRecognizer()
+ {
+ return (DragGestureRecognizer) getSource();
+ }
+
+ /**
+ * Returns the Component corresponding to this.
+ *
+ * @return the Component corresponding to this.
+ */
+ public Component getComponent()
+ {
+ return component;
+ }
+
+ /**
+ * Gets the DragSource corresponding to this.
+ *
+ * @return the DragSource corresponding to this.
+ */
+ public DragSource getDragSource()
+ {
+ return dragSource;
+ }
+
+ /**
+ * Returns the origin of the drag.
+ *
+ * @return the origin of the drag.
+ */
+ public Point getDragOrigin()
+ {
+ return origin;
+ }
+
+ /**
+ * Gets an iterator representation of the List of events.
+ *
+ * @return an iterator representation of the List of events.
+ */
+ public Iterator<InputEvent> iterator()
+ {
+ return events.iterator();
+ }
+
+ /**
+ * Gets an array representation of the List of events.
+ *
+ * @return an array representation of the List of events.
+ */
+ public Object[] toArray()
+ {
+ return events.toArray();
+ }
+
+ /**
+ * Gets an array representation of the List of events.
+ *
+ * @param array - the array to store the events in.
+ * @return an array representation of the List of events.
+ */
+ public Object[] toArray(Object[] array)
+ {
+ return events.toArray(array);
+ }
+
+ /**
+ * Gets the user's preferred action.
+ *
+ * @return the user's preferred action.
+ */
+ public int getDragAction()
+ {
+ return action;
+ }
+
+ /**
+ * Get the event that triggered this gesture.
+ *
+ * @return the event that triggered this gesture.
+ */
+ public InputEvent getTriggerEvent()
+ {
+ return dgr.getTriggerEvent();
+ }
+
+ /**
+ * Starts the drag given the initial Cursor to display, the Transferable
+ * object, and the DragSourceListener to use.
+ *
+ * @exception InvalidDnDOperationException If the Drag and Drop system is
+ * unable to initiate a drag operation, or if the user attempts to start
+ * a drag while an existing drag operation is still executing.
+ */
+ public void startDrag(Cursor dragCursor, Transferable trans)
+ {
+ startDrag(dragCursor, null, null, trans, null);
+ }
+
+ /**
+ * Starts the drag given the initial Cursor to display, the Transferable
+ * object, and the DragSourceListener to use.
+ *
+ * @exception InvalidDnDOperationException If the Drag and Drop system is
+ * unable to initiate a drag operation, or if the user attempts to start
+ * a drag while an existing drag operation is still executing.
+ */
+ public void startDrag(Cursor dragCursor, Transferable trans,
+ DragSourceListener l)
+ {
+ startDrag(dragCursor, null, null, trans, l);
+ }
+
+ /**
+ * Starts the drag given the initial Cursor to display, the Transferable
+ * object, and the DragSourceListener to use.
+ *
+ * @exception InvalidDnDOperationException If the Drag and Drop system is
+ * unable to initiate a drag operation, or if the user attempts to start
+ * a drag while an existing drag operation is still executing.
+ */
+ public void startDrag(Cursor dragCursor, Image dragImage, Point imageOffset,
+ Transferable trans, DragSourceListener l)
+ {
+ dragSource.startDrag(this, dragCursor, dragImage, imageOffset, trans, l);
+ }
+} // class DragGestureEvent