svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.mapcontext / org.gvsig.fmap.mapcontext.api / src / main / java / org / gvsig / fmap / mapcontext / layers / LayerPositionEvent.java @ 40559
History | View | Annotate | Download (3.67 KB)
| 1 |
/**
|
|---|---|
| 2 |
* gvSIG. Desktop Geographic Information System.
|
| 3 |
*
|
| 4 |
* Copyright (C) 2007-2013 gvSIG Association.
|
| 5 |
*
|
| 6 |
* This program is free software; you can redistribute it and/or
|
| 7 |
* modify it under the terms of the GNU General Public License
|
| 8 |
* as published by the Free Software Foundation; either version 3
|
| 9 |
* of the License, or (at your option) any later version.
|
| 10 |
*
|
| 11 |
* This program is distributed in the hope that it will be useful,
|
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 14 |
* GNU General Public License for more details.
|
| 15 |
*
|
| 16 |
* You should have received a copy of the GNU General Public License
|
| 17 |
* along with this program; if not, write to the Free Software
|
| 18 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
| 19 |
* MA 02110-1301, USA.
|
| 20 |
*
|
| 21 |
* For any additional information, do not hesitate to contact us
|
| 22 |
* at info AT gvsig.com, or visit our website www.gvsig.com.
|
| 23 |
*/
|
| 24 |
package org.gvsig.fmap.mapcontext.layers; |
| 25 |
|
| 26 |
|
| 27 |
/**
|
| 28 |
* <p>Event produced when a layer has been or is being moved from a collection of layers.</p>
|
| 29 |
*
|
| 30 |
* @author Vicente Caballero Navarro
|
| 31 |
*/
|
| 32 |
public class LayerPositionEvent extends LayerCollectionEvent { |
| 33 |
/**
|
| 34 |
* <p>If this event is a <i>LAYER_MOVED</i> type, stores the previous index of the affected layer in the layer
|
| 35 |
* collection; otherwise its value will be the same as the <code>newPos</code> one.</p>
|
| 36 |
*/
|
| 37 |
private int oldPos; |
| 38 |
|
| 39 |
/**
|
| 40 |
* <p>The new index in the layer collection of the layer affected.</p>
|
| 41 |
*/
|
| 42 |
private int newPos; |
| 43 |
|
| 44 |
/**
|
| 45 |
* <p>Identifies this event as a action on a layer that is being moved.</p>
|
| 46 |
*/
|
| 47 |
private final static int LAYER_MOVING = 4; |
| 48 |
|
| 49 |
/**
|
| 50 |
* <p>Identifies this event as a action on a layer that has been moved.</p>
|
| 51 |
*/
|
| 52 |
private final static int LAYER_MOVED = 1; |
| 53 |
|
| 54 |
/**
|
| 55 |
* <p>Creates a new layer position event notifying a "layer moved" action.</p>
|
| 56 |
*
|
| 57 |
* @param lyr layer affected by the action
|
| 58 |
* @param oldp previous index of the affected layer in the layer collection
|
| 59 |
* @param newp new index of the affected layer in the layer collection
|
| 60 |
*
|
| 61 |
* @return a new layer position event
|
| 62 |
*/
|
| 63 |
public static LayerPositionEvent createLayerMovedEvent(FLayer lyr, int oldp, int newp){ |
| 64 |
return new LayerPositionEvent(lyr, oldp, newp, LAYER_MOVED); |
| 65 |
} |
| 66 |
|
| 67 |
/**
|
| 68 |
* <p>Creates a new layer position event notifying a "layer moving" action.</p>
|
| 69 |
*
|
| 70 |
* @param lyr layer affected by the action
|
| 71 |
* @param oldp previous index of the affected layer in the layer collection
|
| 72 |
* @param newp new index of the affected layer in the layer collection
|
| 73 |
*
|
| 74 |
* @return a new layer position event
|
| 75 |
*/
|
| 76 |
public static LayerPositionEvent createLayerMovingEvent(FLayer lyr, int oldp, int newp){ |
| 77 |
return new LayerPositionEvent(lyr, oldp, newp, LAYER_MOVING); |
| 78 |
} |
| 79 |
|
| 80 |
/**
|
| 81 |
* <p>Creates a new layer position event of the specified type.</p>
|
| 82 |
*
|
| 83 |
* @param lyr layer affected by the action
|
| 84 |
* @param oldp previous index of the affected layer in the layer collection
|
| 85 |
* @param newp new index of the affected layer in the layer collection
|
| 86 |
* @param eventType type of layer collection event
|
| 87 |
*
|
| 88 |
* @return a new layer position event
|
| 89 |
*/
|
| 90 |
private LayerPositionEvent(FLayer lyr, int oldp, int newp, int eventType) { |
| 91 |
super(lyr, eventType);
|
| 92 |
oldPos = oldp; |
| 93 |
newPos = newp; |
| 94 |
} |
| 95 |
|
| 96 |
/**
|
| 97 |
* <p>Gets the previous index of the affected layer in the layer collection.</p>
|
| 98 |
*
|
| 99 |
* @return the previous index
|
| 100 |
*/
|
| 101 |
public int getOldPos() { |
| 102 |
return oldPos;
|
| 103 |
} |
| 104 |
|
| 105 |
/**
|
| 106 |
* <p>Gets the new index of the affected layer in the layer collection.</p>
|
| 107 |
*
|
| 108 |
* @return the new index
|
| 109 |
*/
|
| 110 |
public int getNewPos() { |
| 111 |
return newPos;
|
| 112 |
} |
| 113 |
} |