bundles/org.simantics.diagram/src/org/simantics/diagram/scl/SymbolLibrary.java

   1 package org.simantics.diagram.scl;
   2
   3 import java.awt.Color;
   4
   5 import org.simantics.diagram.symbollibrary.ISymbolItem;
   6 import org.simantics.g2d.canvas.Hints;
   7 import org.simantics.g2d.canvas.ICanvasContext;
   8 import org.simantics.g2d.canvas.impl.CanvasContext;
   9 import org.simantics.g2d.diagram.DiagramClass;
  10 import org.simantics.g2d.diagram.DiagramHints;
  11 import org.simantics.g2d.diagram.IDiagram;
  12 import org.simantics.g2d.diagram.handler.PickRequest.PickPolicy;
  13 import org.simantics.g2d.diagram.handler.layout.FlowLayout;
  14 import org.simantics.g2d.diagram.impl.Diagram;
  15 import org.simantics.g2d.diagram.participant.DiagramParticipant;
  16 import org.simantics.g2d.diagram.participant.ElementInteractor;
  17 import org.simantics.g2d.diagram.participant.ElementPainter;
  18 import org.simantics.g2d.diagram.participant.Selection;
  19 import org.simantics.g2d.diagram.participant.pointertool.PointerInteractor;
  20 import org.simantics.g2d.element.ElementClass;
  21 import org.simantics.g2d.element.ElementHints;
  22 import org.simantics.g2d.element.IElement;
  23 import org.simantics.g2d.element.handler.StaticSymbol;
  24 import org.simantics.g2d.element.impl.Element;
  25 import org.simantics.g2d.gallery.GalleryItemSGNode;
  26 import org.simantics.g2d.image.DefaultImages;
  27 import org.simantics.g2d.image.Image;
  28 import org.simantics.g2d.participant.BackgroundPainter;
  29 import org.simantics.g2d.participant.KeyToCommand;
  30 import org.simantics.g2d.participant.KeyUtil;
  31 import org.simantics.g2d.participant.MouseUtil;
  32 import org.simantics.g2d.participant.SymbolUtil;
  33 import org.simantics.g2d.participant.TransformUtil;
  34 import org.simantics.g2d.tooltip.TooltipParticipant;
  35 import org.simantics.scenegraph.g2d.events.command.CommandKeyBinding;
  36 import org.simantics.utils.datastructures.hints.IHintContext;
  37 import org.simantics.utils.threads.AWTThread;
  38 import org.simantics.utils.threads.IThreadWorkQueue;
  39
  40 public class SymbolLibrary {
  41
  42         public static ICanvasContext create(ISymbolItem item) {
  43                 IDiagram diagram =  Diagram.spawnNew(DiagramClass.DEFAULT);
  44         diagram.setHint(FlowLayout.HGAP, 5.0);
  45         diagram.setHint(FlowLayout.VGAP, 5.0);
  46         IThreadWorkQueue thread = AWTThread.getThreadAccess();
  47         CanvasContext ctx = new CanvasContext(thread);
  48         initializeCanvasContext(ctx);
  49         IHintContext hintCtx = ctx.getDefaultHintContext();
  50         hintCtx.setHint(DiagramHints.KEY_DIAGRAM, diagram);
  51
  52         ElementClass ec = item.getElementClass(diagram);
  53         StaticSymbol ss = ec.getSingleItem(StaticSymbol.class);
  54         Image source = ss == null ? DefaultImages.UNKNOWN2.get() : ss.getImage();
  55
  56         IElement element = Element.spawnNew(ec);
  57         element.setHint(ElementHints.KEY_OBJECT, item);
  58         element.setHint(GalleryItemSGNode.KEY_IMAGE, source);
  59         diagram.addElement(element);
  60
  61         return ctx;
  62         }
  63
  64          private static void initializeCanvasContext(final CanvasContext canvasContext) {
  65                 // Create canvas context and a layer of interactors
  66                 final IHintContext h = canvasContext.getDefaultHintContext();
  67
  68                 // Support & Util Participants
  69                 canvasContext.add( new TransformUtil() );
  70
  71                 canvasContext.add( new MouseUtil() );
  72                 canvasContext.add( new KeyUtil() );
  73                 canvasContext.add( new SymbolUtil() );
  74
  75                 // Grid & Ruler & Background
  76                 h.setHint(Hints.KEY_BACKGROUND_COLOR, Color.WHITE);
  77                 canvasContext.add( new BackgroundPainter() );
  78
  79                 // Key bindings
  80                 canvasContext.add( new KeyToCommand( CommandKeyBinding.DEFAULT_BINDINGS ) );
  81
  82                 ////// Diagram Participants //////
  83                 PointerInteractor pi = new PointerInteractor(true, true, false, true, false, null);
  84                 pi.setBoxSelectMode(PickPolicy.PICK_INTERSECTING_OBJECTS);
  85                 canvasContext.add( pi );
  86                 canvasContext.add( new Selection() );
  87                 canvasContext.add( new DiagramParticipant() );
  88                 canvasContext.add( new ElementPainter() );
  89                 canvasContext.add( new ElementInteractor() );
  90                 canvasContext.add( new TooltipParticipant());
  91
  92                 h.setHint(ElementPainter.KEY_SELECTION_FRAME_COLOR, Color.WHITE);
  93                 h.setHint(ElementPainter.KEY_SELECTION_CONTENT_COLOR, new Color(0.7f, 0.7f, 1.f, 0.5f));
  94                 h.setHint(Hints.KEY_TOOL, Hints.POINTERTOOL);
  95
  96
  97                 canvasContext.assertParticipantDependencies();
  98             }
  99
 100 }