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.diagram.elements;
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14 import java.awt.Color;
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15 import java.awt.Font;
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16 import java.awt.geom.AffineTransform;
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17 import java.awt.geom.Rectangle2D;
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18 import java.util.function.Consumer;
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20 import org.simantics.g2d.canvas.ICanvasContext;
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21 import org.simantics.g2d.diagram.DiagramUtils;
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22 import org.simantics.g2d.diagram.IDiagram;
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23 import org.simantics.g2d.element.ElementHints;
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24 import org.simantics.g2d.element.ElementUtils;
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25 import org.simantics.g2d.element.IElement;
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26 import org.simantics.g2d.element.SceneGraphNodeKey;
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27 import org.simantics.g2d.element.handler.HandleMouseEvent;
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28 import org.simantics.g2d.element.handler.SceneGraph;
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29 import org.simantics.g2d.utils.Alignment;
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30 import org.simantics.scenegraph.g2d.G2DParentNode;
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31 import org.simantics.scenegraph.g2d.events.MouseEvent;
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32 import org.simantics.scenegraph.g2d.events.MouseEvent.MouseEnterEvent;
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33 import org.simantics.scenegraph.g2d.events.MouseEvent.MouseExitEvent;
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34 import org.simantics.utils.datastructures.hints.IHintContext.Key;
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37 * ElementHandler for text elements
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38 * In-line editing supported.
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40 * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
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42 public class TextElementNoBounds implements SceneGraph, HandleMouseEvent {
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44 private static final long serialVersionUID = -148784588840819612L;
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46 public static final TextElementNoBounds INSTANCE = new TextElementNoBounds();
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48 public static final Key SG_NODE = new SceneGraphNodeKey(TextNode.class, "TEXT_SG_NODE");
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50 protected static final double DEFAULT_PADDING_X = 0.5;
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51 protected static final double DEFAULT_PADDING_Y = 0.5;
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52 protected static final double SCALE = 0.235;
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54 protected final double originX;
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55 protected final double originY;
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56 protected final Alignment horizontalAlignment;
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57 protected final Alignment verticalAlignment;
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58 protected final double borderWidth;
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59 protected final boolean editable;
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60 protected final double paddingX;
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61 protected final double paddingY;
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64 public TextElementNoBounds() {
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65 this(0, 0, Alignment.LEADING, 0);
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68 public TextElementNoBounds(double originX, double originY, Alignment horizontalAlignment) {
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69 this(originX, originY, horizontalAlignment, 0);
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72 public TextElementNoBounds(double originX, double originY, Alignment horizontalAlignment, double borderWidth) {
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73 this(originX, originY, horizontalAlignment, borderWidth, DEFAULT_PADDING_X, DEFAULT_PADDING_Y, true);
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76 public TextElementNoBounds(double originX, double originY, Alignment horizontalAlignment, double borderWidth, double paddingX, double paddingY, boolean editable) {
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77 if (horizontalAlignment == null)
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78 throw new NullPointerException("null horizontal alignment");
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80 this.originX = originX;
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81 this.originY = originY;
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82 this.horizontalAlignment = horizontalAlignment;
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83 this.verticalAlignment = Alignment.BASELINE;
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84 this.borderWidth = borderWidth;
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85 this.editable = editable;
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86 this.paddingX = paddingX;
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87 this.paddingY = paddingY;
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92 public void init(final IElement e, G2DParentNode parent) {
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93 TextNode node = getOrCreateTextNode(e, parent);
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95 Font font = ElementUtils.getTextFont(e);
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96 Color color = ElementUtils.getTextColor(e);
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97 Color fillColor = ElementUtils.getFillColor(e);
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98 Color borderColor = ElementUtils.getBorderColor(e, Color.BLACK);
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99 String text = ElementUtils.getText(e);
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100 AffineTransform at = ElementUtils.getTransform(e);
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101 Alignment hAlign = ElementUtils.getHintOrDefault(e, ElementHints.KEY_HORIZONTAL_ALIGN, horizontalAlignment);
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102 Alignment vAlign = ElementUtils.getHintOrDefault(e, ElementHints.KEY_VERTICAL_ALIGN, verticalAlignment);
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103 Double borderWidth = ElementUtils.getHintOrDefault(e, MonitorClass.KEY_BORDER_WIDTH, this.borderWidth);
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105 node.init(text, font, color, originX, originY, SCALE);
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106 node.setBackgroundColor(fillColor);
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107 node.setBorderColor(borderColor);
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108 node.setHorizontalAlignment((byte) hAlign.ordinal());
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109 node.setVerticalAlignment((byte) vAlign.ordinal());
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110 node.setPadding(paddingX, paddingY);
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111 node.setBorderWidth(borderWidth.floatValue());
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112 node.setEditable(editable);
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114 node.setTransform(at);
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116 if(Boolean.TRUE.equals(ElementUtils.getHintOrDefault(e, ElementHints.KEY_RESIZABLE, false))) {
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117 Rectangle2D bounds = e.getHint(ElementHints.KEY_BOUNDS);
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118 if(bounds != null) {
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119 node.setTargetBounds(bounds);
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120 node.setWrapText(true);
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125 protected TextNode getOrCreateTextNode(IElement e, G2DParentNode parent) {
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126 return ElementUtils.getOrCreateNode(e, parent, SG_NODE, "text", TextNode.class, new TextNodeCallBack(e));
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129 private class TextNodeCallBack implements Consumer<TextNode> {
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133 public TextNodeCallBack(IElement e) {
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138 public void accept(TextNode node) {
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139 node.setTextListener(new ITextListener() {
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141 public void textChanged() {}
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144 public void textEditingStarted() {}
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147 public void textEditingCancelled() {
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148 TextNode node = (TextNode) e.getHint(SG_NODE);
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154 public void textEditingEnded() {
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155 TextNode node = (TextNode) e.getHint(SG_NODE);
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158 //System.out.println("Node text changed: " + node.getText());
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159 ElementUtils.setText(e, node.getText());
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160 IDiagram diagram = ElementUtils.getDiagram(e);
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161 DiagramUtils.synchronizeHintsToBackend(diagram, e);
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169 public void cleanup(IElement e) {
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170 ElementUtils.removePossibleNode(e, SG_NODE);
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173 // FIXME: hazardous with TextElementHandler.INSTANCE
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174 TextEditActivation editActivation = null;
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177 public boolean handleMouseEvent(IElement e, ICanvasContext ctx, MouseEvent me) {
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178 if (me instanceof MouseEnterEvent) {
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179 e.setHint(ElementHints.KEY_HOVER, true);
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180 } else if (me instanceof MouseExitEvent) {
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181 e.setHint(ElementHints.KEY_HOVER, false);
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187 protected void endEdit(TextNode node) {
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188 if (editActivation != null) {
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189 editActivation.release();
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190 editActivation = null;
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192 node.setEditMode(false);
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198 public int hashCode() {
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199 final int prime = 31;
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202 temp = Double.doubleToLongBits(borderWidth);
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203 result = prime * result + (int) (temp ^ (temp >>> 32));
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204 result = prime * result + horizontalAlignment.hashCode();
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205 temp = Double.doubleToLongBits(originX);
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206 result = prime * result + (int) (temp ^ (temp >>> 32));
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207 temp = Double.doubleToLongBits(originY);
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208 result = prime * result + (int) (temp ^ (temp >>> 32));
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209 temp = Double.doubleToLongBits(paddingX);
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210 result = prime * result + (int) (temp ^ (temp >>> 32));
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211 temp = Double.doubleToLongBits(paddingY);
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212 result = prime * result + (int) (temp ^ (temp >>> 32));
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217 public boolean equals(Object obj) {
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222 if (getClass() != obj.getClass())
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224 TextElementNoBounds other = (TextElementNoBounds) obj;
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225 if (Double.doubleToLongBits(borderWidth) != Double.doubleToLongBits(other.borderWidth))
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227 if (horizontalAlignment != other.horizontalAlignment)
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229 if (Double.doubleToLongBits(originX) != Double.doubleToLongBits(other.originX))
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231 if (Double.doubleToLongBits(originY) != Double.doubleToLongBits(other.originY))
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233 if (Double.doubleToLongBits(paddingX) != Double.doubleToLongBits(other.paddingX))
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235 if (Double.doubleToLongBits(paddingY) != Double.doubleToLongBits(other.paddingY))
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