bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/TextElementClassFactory.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.diagram.adapter;\r
  13 \r
  14 import java.awt.geom.AffineTransform;\r
  15 import java.awt.geom.Rectangle2D;\r
  16 \r
  17 import org.simantics.db.ReadGraph;\r
  18 import org.simantics.db.Resource;\r
  19 import org.simantics.db.common.utils.NameUtils;\r
  20 import org.simantics.db.exception.DatabaseException;\r
  21 import org.simantics.diagram.G2DUtils;\r
  22 import org.simantics.diagram.elements.ElementPropertySetter;\r
  23 import org.simantics.diagram.elements.MonitorClass;\r
  24 import org.simantics.diagram.elements.ResizeRectangularSceneGraph;\r
  25 import org.simantics.diagram.elements.TextElementHandler;\r
  26 import org.simantics.diagram.stubs.DiagramResource;\r
  27 import org.simantics.diagram.stubs.G2DResource;\r
  28 import org.simantics.diagram.synchronization.CompositeHintSynchronizer;\r
  29 import org.simantics.diagram.synchronization.IHintSynchronizer;\r
  30 import org.simantics.diagram.synchronization.SynchronizationHints;\r
  31 import org.simantics.diagram.synchronization.graph.DiagramGraphUtil;\r
  32 import org.simantics.diagram.synchronization.graph.TextSynchronizer;\r
  33 import org.simantics.diagram.synchronization.graph.TransformSynchronizer;\r
  34 import org.simantics.g2d.canvas.ICanvasContext;\r
  35 import org.simantics.g2d.diagram.IDiagram;\r
  36 import org.simantics.g2d.element.ElementClass;\r
  37 import org.simantics.g2d.element.ElementHints;\r
  38 import org.simantics.g2d.element.ElementUtils;\r
  39 import org.simantics.g2d.element.IElement;\r
  40 import org.simantics.g2d.element.handler.Text;\r
  41 import org.simantics.g2d.element.handler.impl.DefaultTransform;\r
  42 import org.simantics.g2d.element.handler.impl.SimpleElementLayers;\r
  43 import org.simantics.g2d.element.handler.impl.StaticObjectAdapter;\r
  44 import org.simantics.g2d.element.handler.impl.StaticSymbolImpl;\r
  45 import org.simantics.g2d.element.handler.impl.TextColorImpl;\r
  46 import org.simantics.g2d.element.handler.impl.TextFontImpl;\r
  47 import org.simantics.g2d.image.DefaultImages;\r
  48 import org.simantics.g2d.image.Image;\r
  49 import org.simantics.g2d.svg.SVGImage;\r
  50 import org.simantics.g2d.utils.Alignment;\r
  51 \r
  52 \r
  53 /**\r
  54  * Element(Class)Factory for TextElements\r
  55  * \r
  56  * @author Marko Luukkainen <marko.luukkainen@vtt.fi>\r
  57  *\r
  58  */\r
  59 public class TextElementClassFactory extends SyncElementFactory {\r
  60 \r
  61     public static final ElementFactory INSTANCE = new TextElementClassFactory();\r
  62 \r
  63     public static final IHintSynchronizer TEXT_SYNCHRONIZER = new CompositeHintSynchronizer(TextSynchronizer.INSTANCE, TransformSynchronizer.INSTANCE);\r
  64 \r
  65     public static final ElementPropertySetter RESIZE_PROPERTY_SETTER =\r
  66             new ElementPropertySetter(ResizeRectangularSceneGraph.KEY_SG_NODE);\r
  67     \r
  68     @Override\r
  69     public ElementClass create(ReadGraph graph, ICanvasContext canvas, IDiagram diagram, Resource elementType) throws DatabaseException {\r
  70         String id = "TextElement: " + NameUtils.getSafeName(graph, elementType);\r
  71         G2DResource g2d = G2DResource.getInstance(graph);\r
  72         String svgDoc = graph.getPossibleRelatedValue(elementType, g2d.HasSVGDocument);\r
  73         Image image = null;\r
  74         if (svgDoc != null)\r
  75             image = new SVGImage(id+".svg", svgDoc);\r
  76         else\r
  77             image = DefaultImages.ERROR_DECORATOR.get();\r
  78         return ElementClass.compile(\r
  79                 Text.INSTANCE,\r
  80                 TextColorImpl.BLACK,\r
  81                 TextFontImpl.DEFAULT,\r
  82                 new StaticObjectAdapter(elementType),\r
  83                 DefaultTransform.INSTANCE,\r
  84                 SimpleElementLayers.INSTANCE,\r
  85                 TextElementHandler.INSTANCE,\r
  86                 ResizeRectangularSceneGraph.INSTANCE,\r
  87                 RESIZE_PROPERTY_SETTER,                \r
  88                 new StaticSymbolImpl(image)\r
  89         )\r
  90         .setId(id)\r
  91         ;\r
  92     }\r
  93 \r
  94     @Override\r
  95     public void load(ReadGraph graph, ICanvasContext canvas, IDiagram diagram, Resource element, IElement e) throws DatabaseException {\r
  96         G2DResource G2D = G2DResource.getInstance(graph);\r
  97         DiagramResource DIA = DiagramResource.getInstance(graph);\r
  98 \r
  99         String text = (String) graph.getPossibleRelatedValue(element, DIA.HasText);\r
 100         if (text == null)\r
 101                 text = ElementUtils.getText(e);\r
 102         if (text == null)\r
 103             text = "[empty]";\r
 104         ElementUtils.setText(e, text);\r
 105 \r
 106         if (graph.isInstanceOf(element, DIA.FontProvider)) {\r
 107             Resource fontResource = graph.getPossibleObject(element, G2D.HasFont);\r
 108             if (fontResource != null)\r
 109                 ElementUtils.setTextFont(e, G2DUtils.getFont(graph, fontResource));\r
 110         }\r
 111         if (graph.isInstanceOf(element, DIA.ColorProvider)) {\r
 112             Resource colorResource = graph.getPossibleObject(element, G2D.HasColor);\r
 113             if (colorResource != null)\r
 114                 ElementUtils.setTextColor(e, G2DUtils.getColor(graph, colorResource));\r
 115         }\r
 116 \r
 117         // Load alignments\r
 118         Resource hAlign = graph.getPossibleObject(element, G2D.HasHorizontalAlignment);\r
 119         Resource vAlign = graph.getPossibleObject(element, G2D.HasVerticalAlignment);\r
 120         if (hAlign != null)\r
 121             e.setHint(ElementHints.KEY_HORIZONTAL_ALIGN, DiagramGraphUtil.toAlignment(hAlign, G2D, Alignment.LEADING));\r
 122         if (vAlign != null)\r
 123             e.setHint(ElementHints.KEY_VERTICAL_ALIGN, DiagramGraphUtil.toVerticalAlignment(vAlign, G2D, Alignment.BASELINE));\r
 124 \r
 125         // Load border\r
 126         final Float borderWidth = graph.getPossibleRelatedValue(element, G2D.HasStrokeWidth);\r
 127         if (borderWidth != null)\r
 128             e.setHint(MonitorClass.KEY_BORDER_WIDTH, borderWidth.doubleValue());\r
 129 \r
 130         // Load transform\r
 131         AffineTransform at = DiagramGraphUtil.getAffineTransform(graph, element);\r
 132         ElementUtils.setTransform(e, at);\r
 133 \r
 134         // This synchronizes only text and transformation (not font and color)\r
 135         e.setHint(SynchronizationHints.HINT_SYNCHRONIZER, TEXT_SYNCHRONIZER);\r
 136         \r
 137         double bounds[] = DiagramGraphUtil.getPossibleRelatedDoubleArray(graph, element, G2D.HasBounds);\r
 138         if (bounds != null) {\r
 139             e.setHint(ElementHints.KEY_BOUNDS, new Rectangle2D.Double(bounds[0], bounds[1], bounds[2], bounds[3]));\r
 140         }\r
 141     }\r
 142 \r
 143 }\r