org.simantics.district.network.ui/src/org/simantics/district/network/ui/DistrictNetworkUIUtil.java

   1 package org.simantics.district.network.ui;
   2
   3 import java.util.Arrays;
   4 import java.util.Collection;
   5 import java.util.function.Consumer;
   6
   7 import org.eclipse.jface.viewers.ISelection;
   8 import org.eclipse.ui.IEditorPart;
   9 import org.simantics.db.ReadGraph;
  10 import org.simantics.db.Resource;
  11 import org.simantics.db.common.request.UnaryRead;
  12 import org.simantics.db.exception.DatabaseException;
  13 import org.simantics.db.layer0.request.PossibleModel;
  14 import org.simantics.db.layer0.variable.RVI;
  15 import org.simantics.db.layer0.variable.Variable;
  16 import org.simantics.db.layer0.variable.Variables;
  17 import org.simantics.district.network.DistrictNetworkUtil;
  18 import org.simantics.g2d.canvas.ICanvasContext;
  19 import org.simantics.g2d.diagram.DiagramHints;
  20 import org.simantics.layer0.Layer0;
  21 import org.simantics.modeling.ModelingResources;
  22 import org.simantics.modeling.actions.NavigateToTarget;
  23 import org.simantics.scl.runtime.tuple.Tuple4;
  24 import org.simantics.ui.selection.WorkbenchSelectionUtils;
  25 import org.simantics.utils.threads.ThreadUtils;
  26 import org.simantics.utils.ui.ISelectionUtils;
  27
  28 /**
  29  * @author Tuukka Lehtonen
  30  * @since 1.35.0
  31  */
  32 public class DistrictNetworkUIUtil {
  33
  34     public static Resource getInputResource(ReadGraph graph, Object input) throws DatabaseException {
  35         if (input instanceof Resource) {
  36             return (Resource) input;
  37         } else if (input instanceof Variable) {
  38             return ((Variable) input).getPossibleRepresents(graph);
  39         } else if (input instanceof ISelection) {
  40             return ISelectionUtils.filterSingleSelection((ISelection) input, Resource.class);
  41         } else {
  42             return WorkbenchSelectionUtils.getPossibleResource(graph, input);
  43         }
  44     }
  45
  46     public static class GetInputResource extends UnaryRead<Object, Resource> {
  47
  48         public GetInputResource(Object input) {
  49             super(input);
  50         }
  51
  52         @Override
  53         public Resource perform(ReadGraph graph) throws DatabaseException {
  54             return getInputResource(graph, parameter);
  55         }
  56
  57     }
  58
  59     public static class Input extends Tuple4 {
  60         public Input(Resource model, Resource diagram, Resource element, RVI diagramCompositeRvi) {
  61             super(model, diagram, element, diagramCompositeRvi);
  62         }
  63         public Resource model() {
  64             return (Resource) get(0);
  65         }
  66         public Resource diagram() {
  67             return (Resource) get(1);
  68         }
  69         public Resource element() {
  70             return (Resource) get(2);
  71         }
  72         public RVI rvi() {
  73             return (RVI) get(3);
  74         }
  75     }
  76
  77     public static class FindMappedDNElement extends UnaryRead<Object, Input> {
  78
  79         public FindMappedDNElement(Object parameter) {
  80             super(parameter);
  81         }
  82
  83         @Override
  84         public Input perform(ReadGraph graph) throws DatabaseException {
  85             Resource e = DistrictNetworkUtil.getMappedDNElement(graph,
  86                     DistrictNetworkUtil.getDiagramElement(graph,
  87                             getInputResource(graph, parameter)));
  88             return e != null ? graph.syncRequest(new ElementToInput(e)) : null;
  89         }
  90
  91     }
  92
  93     public static class FindMappedComponent extends UnaryRead<Object, Input> {
  94
  95         public FindMappedComponent(Object parameter) {
  96             super(parameter);
  97         }
  98
  99         @Override
 100         public Input perform(ReadGraph graph) throws DatabaseException {
 101             Resource e = DistrictNetworkUtil.getMappedElement(graph,
 102                     getInputResource(graph, parameter));
 103             return e != null ? graph.syncRequest(new ElementToInput(e)) : null;
 104         }
 105
 106     }
 107
 108     public static class ElementToInput extends UnaryRead<Resource, Input> {
 109
 110         public ElementToInput(Resource element) {
 111             super(element);
 112         }
 113
 114         @Override
 115         public Input perform(ReadGraph graph) throws DatabaseException {
 116             Layer0 L0 = Layer0.getInstance(graph);
 117             Resource diagram = graph.getPossibleObject(parameter, L0.PartOf);
 118             if (diagram == null)
 119                 return null;
 120
 121             Resource model = graph.syncRequest(new PossibleModel(diagram));
 122             if (model == null)
 123                 return null;
 124
 125             RVI rvi = getDiagramCompositeRvi(graph, diagram);
 126             if (rvi == null)
 127                 return null;
 128
 129             return new Input(model, diagram, parameter, rvi);
 130         }
 131
 132         private static RVI getDiagramCompositeRvi(ReadGraph graph, Resource diagram) throws DatabaseException {
 133             ModelingResources MOD = ModelingResources.getInstance(graph);
 134             Resource composite = graph.getPossibleObject(diagram, MOD.DiagramToComposite);
 135             if (composite == null)
 136                 return null;
 137             Variable v = Variables.getPossibleVariable(graph, composite);
 138             return v != null ? v.getPossibleRVI(graph) : null;
 139         }
 140
 141     }
 142
 143     public static Consumer<IEditorPart> editorActivationCallback(final Collection<? extends Object> selectedObjects) {
 144         return part -> {
 145             final ICanvasContext openedCanvas = (ICanvasContext) part.getAdapter(ICanvasContext.class);
 146             assert openedCanvas != null;
 147             // CanvasContext-wide denial of initial zoom-to-fit on diagram open.
 148             openedCanvas.getDefaultHintContext().setHint(DiagramHints.KEY_INITIAL_ZOOM_TO_FIT, Boolean.FALSE);
 149             ThreadUtils.asyncExec(openedCanvas.getThreadAccess(),
 150                     NavigateToTarget.elementSelectorZoomer(openedCanvas, selectedObjects, false));
 151         };
 152     }
 153
 154     public static void openEditorWithSelection(String editorId, Input input, Object... selection) {
 155         NavigateToTarget.editorActivator(
 156                 editorId,
 157                 input.diagram(),
 158                 input.model(),
 159                 input.rvi(),
 160                 DistrictNetworkUIUtil.editorActivationCallback(Arrays.asList(selection)))
 161         .run();
 162     }
 163
 164     public static void openDNDiagramEditorWithSelection(Input input, Object... selection) {
 165         openEditorWithSelection(DistrictDiagramEditor.ID, input, selection);
 166     }
 167
 168 }