1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.scenegraph.g2d.nodes;
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14 import java.awt.AlphaComposite;
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15 import java.awt.Composite;
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16 import java.awt.Graphics2D;
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18 import org.simantics.scenegraph.g2d.IG2DNode;
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19 import org.simantics.scenegraph.utils.InitValueSupport;
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21 public class SingleElementNode extends TransformNode implements InitValueSupport {
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25 private static final long serialVersionUID = -4982578347433716440L;
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27 protected Composite composite;
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28 protected Boolean visible = Boolean.TRUE;
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29 protected Boolean hidden = Boolean.FALSE;
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32 public boolean validate() {
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33 return visible && !hidden;
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36 @SyncField("composite")
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37 public void setComposite(Composite composite) {
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38 this.composite = composite;
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41 @SyncField("visible")
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42 public void setVisible(Boolean visible) {
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43 this.visible = visible;
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46 public boolean isVisible() {
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50 @SyncField("hidden")
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51 public void setHidden(Boolean hidden) {
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52 this.hidden = hidden;
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55 public boolean isHidden() {
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60 public void render(Graphics2D g) {
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61 if (!visible || hidden)
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64 Composite oldComposite = null;
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65 if(composite != null) {
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66 oldComposite = g.getComposite();
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67 g.setComposite(composite);
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69 if(alphaComposite != null) {
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70 if (oldComposite == null)
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71 oldComposite = g.getComposite();
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72 g.setComposite(alphaComposite);
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77 if (oldComposite != null)
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78 g.setComposite(oldComposite);
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82 public String toString() {
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83 StringBuilder sb = new StringBuilder();
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84 sb.append(super.toString());
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86 if (composite != null) {
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87 sb.append("composite=(");
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88 AlphaComposite ac = (AlphaComposite) composite;
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89 sb.append(ac.getRule());
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91 sb.append(ac.getAlpha());
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94 sb.append("visible=");
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97 return sb.toString();
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100 // private INode findChild(String key) {
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102 // INode result = getNode(key);
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103 // if(result != null) return result;
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105 // for(Map.Entry<String, IG2DNode> entry : children.entrySet()) {
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107 // if(!(entry.getValue() instanceof SingleElementNode)) {
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108 // if(entry.getKey().startsWith(key)) return entry.getValue();
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113 // for(IG2DNode node : getNodes()) {
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115 // if(node instanceof SingleElementNode) {
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117 // result = ((SingleElementNode)node).findChild(key);
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118 // if(result != null) return result;
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128 protected Composite alphaComposite = null;
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130 @PropertySetter("alpha")
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131 @SyncField("alphaComposite")
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132 public void setAlphaComposite(Composite alphaComposite) {
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133 this.alphaComposite = alphaComposite;
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136 // public void setValue(String key, Object value) {
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138 // if ("alpha".equals(key)) {
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139 // Float val = Float.parseFloat((String)value);
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140 // alphaComposite = AlphaComposite.getInstance(AlphaComposite. SRC_OVER, val);
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143 // String[] parts = key.split("\\.");
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144 // if(parts.length != 2) return;
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146 // INode child = findChild(parts[0]);
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148 // if(child == null) return;
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150 //// child.setValue(parts[1], value);
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157 public void initValues() {
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158 alphaComposite = null;
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159 for (IG2DNode node : getSortedNodes()) {
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160 if (node instanceof InitValueSupport) {
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161 ((InitValueSupport) node).initValues();
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