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.List;
   6 import java.util.function.Consumer;
   7
   8 import org.eclipse.jface.viewers.ISelection;
   9 import org.eclipse.swt.widgets.Display;
  10 import org.eclipse.ui.IEditorPart;
  11 import org.simantics.Simantics;
  12 import org.simantics.db.ReadGraph;
  13 import org.simantics.db.Resource;
  14 import org.simantics.db.common.request.UnaryRead;
  15 import org.simantics.db.exception.DatabaseException;
  16 import org.simantics.db.layer0.request.PossibleModel;
  17 import org.simantics.db.layer0.variable.RVI;
  18 import org.simantics.db.layer0.variable.Variable;
  19 import org.simantics.db.layer0.variable.Variables;
  20 import org.simantics.district.network.DistrictNetworkUtil;
  21 import org.simantics.g2d.canvas.ICanvasContext;
  22 import org.simantics.g2d.diagram.DiagramHints;
  23 import org.simantics.layer0.Layer0;
  24 import org.simantics.modeling.ModelingResources;
  25 import org.simantics.modeling.actions.NavigateToTarget;
  26 import org.simantics.scl.runtime.tuple.Tuple4;
  27 import org.simantics.ui.selection.WorkbenchSelectionUtils;
  28 import org.simantics.utils.threads.ThreadUtils;
  29 import org.simantics.utils.ui.ISelectionUtils;
  30 import org.simantics.utils.ui.SWTUtils;
  31
  32 /**
  33  * @author Tuukka Lehtonen
  34  * @since 1.35.0
  35  */
  36 public class DistrictNetworkUIUtil {
  37
  38     public static Resource getInputResource(ReadGraph graph, Object input) throws DatabaseException {
  39         if (input instanceof Resource) {
  40             return (Resource) input;
  41         } else if (input instanceof Variable) {
  42             return ((Variable) input).getPossibleRepresents(graph);
  43         } else if (input instanceof ISelection) {
  44             return ISelectionUtils.filterSingleSelection((ISelection) input, Resource.class);
  45         } else {
  46             return WorkbenchSelectionUtils.getPossibleResource(graph, input);
  47         }
  48     }
  49
  50     public static class GetInputResource extends UnaryRead<Object, Resource> {
  51
  52         public GetInputResource(Object input) {
  53             super(input);
  54         }
  55
  56         @Override
  57         public Resource perform(ReadGraph graph) throws DatabaseException {
  58             return getInputResource(graph, parameter);
  59         }
  60
  61     }
  62
  63     public static class Input extends Tuple4 {
  64         public Input(Resource model, Resource diagram, Resource element, RVI diagramCompositeRvi) {
  65             super(model, diagram, element, diagramCompositeRvi);
  66         }
  67         public Resource model() {
  68             return (Resource) get(0);
  69         }
  70         public Resource diagram() {
  71             return (Resource) get(1);
  72         }
  73         public Resource element() {
  74             return (Resource) get(2);
  75         }
  76         public RVI rvi() {
  77             return (RVI) get(3);
  78         }
  79     }
  80
  81     public static class FindMappedDNElement extends UnaryRead<Object, Input> {
  82
  83         public FindMappedDNElement(Object parameter) {
  84             super(parameter);
  85         }
  86
  87         @Override
  88         public Input perform(ReadGraph graph) throws DatabaseException {
  89             Resource e = DistrictNetworkUtil.getMappedDNElement(graph,
  90                     DistrictNetworkUtil.getDiagramElement(graph,
  91                             getInputResource(graph, parameter)));
  92             return e != null ? graph.syncRequest(new ElementToInput(e)) : null;
  93         }
  94
  95     }
  96
  97     public static class FindMappedComponent extends UnaryRead<Object, Input> {
  98
  99         public FindMappedComponent(Object parameter) {
 100             super(parameter);
 101         }
 102
 103         @Override
 104         public Input perform(ReadGraph graph) throws DatabaseException {
 105             Resource e = DistrictNetworkUtil.getMappedElement(graph,
 106                     getInputResource(graph, parameter));
 107             return e != null ? graph.syncRequest(new ElementToInput(e)) : null;
 108         }
 109
 110     }
 111
 112     public static class ElementToInput extends UnaryRead<Resource, Input> {
 113
 114         public ElementToInput(Resource element) {
 115             super(element);
 116         }
 117
 118         @Override
 119         public Input perform(ReadGraph graph) throws DatabaseException {
 120             Layer0 L0 = Layer0.getInstance(graph);
 121             Resource diagram = graph.getPossibleObject(parameter, L0.PartOf);
 122             if (diagram == null)
 123                 return null;
 124
 125             Resource model = graph.syncRequest(new PossibleModel(diagram));
 126             if (model == null)
 127                 return null;
 128
 129             RVI rvi = getDiagramCompositeRvi(graph, diagram);
 130             if (rvi == null)
 131                 return null;
 132
 133             return new Input(model, diagram, parameter, rvi);
 134         }
 135
 136         private static RVI getDiagramCompositeRvi(ReadGraph graph, Resource diagram) throws DatabaseException {
 137             ModelingResources MOD = ModelingResources.getInstance(graph);
 138             Resource composite = graph.getPossibleObject(diagram, MOD.DiagramToComposite);
 139             if (composite == null)
 140                 return null;
 141             Variable v = Variables.getPossibleVariable(graph, composite);
 142             return v != null ? v.getPossibleRVI(graph) : null;
 143         }
 144
 145     }
 146
 147     public static Consumer<IEditorPart> editorActivationCallback(final Collection<? extends Object> selectedObjects) {
 148         return part -> {
 149             final ICanvasContext openedCanvas = (ICanvasContext) part.getAdapter(ICanvasContext.class);
 150             assert openedCanvas != null;
 151             // CanvasContext-wide denial of initial zoom-to-fit on diagram open.
 152             openedCanvas.getDefaultHintContext().setHint(DiagramHints.KEY_INITIAL_ZOOM_TO_FIT, Boolean.FALSE);
 153             ThreadUtils.asyncExec(openedCanvas.getThreadAccess(),
 154                     NavigateToTarget.elementSelectorZoomer(openedCanvas, selectedObjects, false));
 155         };
 156     }
 157
 158     public static void openEditorWithSelection(String editorId, Input input, Object... selection) {
 159         NavigateToTarget.editorActivator(
 160                 editorId,
 161                 input.diagram(),
 162                 input.model(),
 163                 input.rvi(),
 164                 DistrictNetworkUIUtil.editorActivationCallback(Arrays.asList(selection)))
 165         .run();
 166     }
 167
 168     public static void openDNDiagramEditorWithSelection(Input input, Object... selection) {
 169         openEditorWithSelection(DistrictDiagramEditor.ID, input, selection);
 170     }
 171
 172     public static boolean openDNDiagramWithSelection(Display display, List<Resource> dnElements) throws DatabaseException {
 173         if (dnElements.isEmpty())
 174             return false;
 175
 176         Input in = Simantics.getSession().syncRequest(
 177                 new ElementToInput(dnElements.get(0)));
 178         if (in == null)
 179             return false;
 180
 181         SWTUtils.asyncExec(display,
 182                 () -> openDNDiagramEditorWithSelection(in, dnElements.toArray()));
 183         return true;
 184     }
 185
 186 }