1 /*******************************************************************************
2 * Copyright (c) 2012 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.maps.eclipse;
14 import org.simantics.g2d.canvas.Hints;
15 import org.simantics.g2d.canvas.ICanvasContext;
16 import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;
17 import org.simantics.g2d.canvas.impl.SGNodeReflection.SGCleanup;
18 import org.simantics.g2d.canvas.impl.SGNodeReflection.SGInit;
19 import org.simantics.maps.sg.MapNode;
20 import org.simantics.maps.sg.MapScaleNode;
21 import org.simantics.scenegraph.g2d.G2DParentNode;
22 import org.simantics.scenegraph.g2d.events.EventHandlerReflection.EventHandler;
23 import org.simantics.scenegraph.g2d.events.command.CommandEvent;
24 import org.simantics.scenegraph.g2d.events.command.Commands;
25 import org.simantics.utils.datastructures.hints.HintListenerAdapter;
26 import org.simantics.utils.datastructures.hints.IHintListener;
27 import org.simantics.utils.datastructures.hints.IHintObservable;
28 import org.simantics.utils.datastructures.hints.IHintContext.Key;
29 import org.simantics.utils.datastructures.hints.IHintContext.KeyOf;
32 * MapPainter is an ICanvasContext participant that uses the scene graph
33 * {@link MapNode} to draw tiled maps in the background of the canvas.
39 public class MapPainter extends AbstractCanvasParticipant {
42 * Grid enabled status. Default value is True
44 public static final Key KEY_MAP_ENABLED = new KeyOf(Boolean.class);
46 public static final double ZOOM_IN_LIMIT = 10000000.0;
48 public static final double ZOOM_OUT_LIMIT = 10.0;
50 IHintListener mapListener = new HintListenerAdapter() {
51 public void hintChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {
52 ICanvasContext cc = getContext();
55 cc.getContentContext().setDirty();
60 protected MapNode node = null;
61 protected MapScaleNode scaleNode = null;
65 public MapPainter(int scale) {
70 public void addedToContext(ICanvasContext ctx) {
71 super.addedToContext(ctx);
72 getHintStack().addKeyHintListener(getThread(), KEY_MAP_ENABLED, mapListener);
76 public void removedFromContext(ICanvasContext ctx) {
77 getHintStack().removeKeyHintListener(getThread(), KEY_MAP_ENABLED, mapListener);
78 super.removedFromContext(ctx);
81 @EventHandler(priority = 0)
82 public boolean handleKeyEvent(CommandEvent e) {
83 if (e.command.equals( Commands.MAP_ENABLE )) {
88 } else if (e.command.equals( Commands.MAP_DISABLE )) {
93 } else if (e.command.equals( Commands.MAP_TOGGLE )) {
94 setEnabled(!isMapEnabled());
103 public void initSG(G2DParentNode parent) {
104 node = parent.addNode("map", MapNode.class);
105 node.setScale(scale);
106 node.setEnabled(true);
107 node.setZIndex(Integer.MIN_VALUE + 999); // Just under the grid
109 scaleNode = parent.addNode("mapScale", MapScaleNode.class);
110 scaleNode.setScale(scale);
111 scaleNode.setEnabled(true);
112 scaleNode.setZIndex(Integer.MAX_VALUE - 999); // Just under the grid
116 public void cleanupSG() {
120 protected void updateNode() {
121 node.setEnabled(isPaintingEnabled());
124 boolean isPaintingEnabled() {
125 boolean enabled = isMapEnabled();
126 Boolean globalDisable = getHint(Hints.KEY_DISABLE_PAINTING);
127 return enabled && !Boolean.TRUE.equals(globalDisable);
130 public boolean isMapEnabled() {
131 Boolean enabled = getHint(KEY_MAP_ENABLED);
132 return !Boolean.FALSE.equals(enabled);
135 public void setEnabled(boolean enabled) {
136 setHint(KEY_MAP_ENABLED, enabled);