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

   1 package org.simantics.district.network.ui;
   2
   3 import java.awt.Color;
   4 import java.util.concurrent.TimeUnit;
   5 import java.util.function.Consumer;
   6 import java.util.function.Supplier;
   7
   8 import org.simantics.datatypes.literal.RGB;
   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.procedure.Listener;
  14 import org.simantics.diagram.ui.DiagramModelHints;
  15 import org.simantics.district.network.DistrictNetworkUtil;
  16 import org.simantics.district.network.ui.participants.DNPointerInteractor;
  17 import org.simantics.district.network.ui.participants.MapRulerPainter;
  18 import org.simantics.g2d.canvas.ICanvasContext;
  19 import org.simantics.g2d.canvas.impl.CanvasContext;
  20 import org.simantics.g2d.diagram.handler.PickRequest.PickFilter;
  21 import org.simantics.g2d.diagram.participant.DelayedBatchElementPainter;
  22 import org.simantics.g2d.diagram.participant.ElementPainter;
  23 import org.simantics.g2d.diagram.participant.Selection;
  24 import org.simantics.g2d.diagram.participant.ZOrderHandler;
  25 import org.simantics.g2d.participant.BackgroundPainter;
  26 import org.simantics.g2d.participant.GridPainter;
  27 import org.simantics.g2d.participant.PanZoomRotateHandler;
  28 import org.simantics.g2d.participant.RenderingQualityInteractor;
  29 import org.simantics.g2d.participant.ZoomToAreaHandler;
  30 import org.simantics.maps.MapScalingTransform;
  31 import org.simantics.maps.eclipse.MapPainter;
  32 import org.simantics.maps.sg.commands.MapCommands;
  33 import org.simantics.modeling.ui.diagramEditor.DiagramViewer;
  34 import org.simantics.scenegraph.g2d.events.command.CommandEvent;
  35 import org.simantics.scenegraph.g2d.events.command.Commands;
  36 import org.simantics.utils.datastructures.hints.IHintContext;
  37 import org.slf4j.Logger;
  38 import org.slf4j.LoggerFactory;
  39
  40 public class DistrictDiagramViewer extends DiagramViewer {
  41
  42     private static final Logger LOGGER = LoggerFactory.getLogger(DistrictDiagramViewer.class);
  43
  44     @Override
  45     protected void addDiagramParticipants(ICanvasContext ctx) {
  46         ctx.add(new ZOrderHandler());
  47         ctx.add(new Selection());
  48         ctx.add(new ElementPainter());
  49         ctx.add(new DNPointerInteractor());
  50
  51         ctx.add(new MapPainter(MapScalingTransform.INSTANCE));
  52
  53         ctx.add(new NetworkDrawingParticipant(MapScalingTransform.INSTANCE));
  54     }
  55
  56     protected String getPopupId() {
  57         return "#DistrictDiagramPopup";
  58     }
  59
  60     @Override
  61     public void initializeCanvasContext(CanvasContext ctx) {
  62         super.initializeCanvasContext(ctx);
  63         IHintContext h = ctx.getDefaultHintContext();
  64         h.setHint(PanZoomRotateHandler.KEY_ZOOM_IN_LIMIT, 10000.0);
  65         h.setHint(PanZoomRotateHandler.KEY_ZOOM_OUT_LIMIT, 0.01);
  66         h.setHint(DiagramModelHints.KEY_DIAGRAM_RESOURCE, diagramResource);
  67     }
  68
  69     @Override
  70     protected void addPainterParticipants(ICanvasContext ctx) {
  71         ctx.add(new RenderingQualityInteractor());
  72         ctx.add(new DelayedBatchElementPainter(PickFilter.FILTER_MONITORS, 500, TimeUnit.MILLISECONDS));
  73     }
  74
  75     @Override
  76     protected void addGridRulerBackgroundParticipants(CanvasContext ctx) {
  77         ctx.add(new GridPainter());
  78         ctx.add(new MapRulerPainter());
  79         ctx.add(new BackgroundPainter());
  80     }
  81
  82     protected void addViewManipulationParticipants(CanvasContext ctx) {
  83         ctx.add(new DistrictPanZoomRotateHandler());
  84         //ctx.add(new MousePanZoomInteractor());
  85         //ctx.add(new MultitouchPanZoomRotateInteractor());
  86         // ctx.add( new OrientationRestorer() );
  87         ctx.add(new ZoomToAreaHandler());
  88     }
  89
  90     @Override
  91     protected void loadPageSettings(ICanvasContext ctx) {
  92         super.loadPageSettings(ctx);
  93         // this might be the wrong place to start such listening but at least
  94         // super.loadPageSettings() does async-db-operations
  95         setupDrawMapEnabled();
  96         setupBackgroundColor();
  97     }
  98
  99     private void setupDrawMapEnabled() {
 100         sessionContext.getSession().asyncRequest(new DrawMapEnabledRequest(getInputResource()), new DrawMapEnabledListener(
 101                 result -> canvasContext.getEventQueue().queueEvent(new CommandEvent(canvasContext, System.currentTimeMillis(), result ? Commands.MAP_ENABLE : Commands.MAP_DISABLE)),
 102                 () -> DistrictDiagramViewer.this.isDisposed()));
 103     }
 104
 105     private void setupBackgroundColor() {
 106         sessionContext.getSession().asyncRequest(new MapBackgroundColorRequest(getInputResource()), new MapBackgroundColorListener(
 107                 result -> queueBackgroundColorChangeEvent(result),
 108                 () -> DistrictDiagramViewer.this.isDisposed()));
 109     }
 110
 111     private void queueBackgroundColorChangeEvent(RGB.Integer result) {
 112         if (result != null) {
 113             Color backgroundColor = new Color(result.red, result.green, result.blue);
 114             canvasContext.getDefaultHintContext().setHint(MapCommands.KEY_MAP_BACKGROUND_COLOR, backgroundColor);
 115             canvasContext.getEventQueue().queueEvent(new CommandEvent(canvasContext, System.currentTimeMillis(), MapCommands.MAP_BACKGROUND_COLOR_CHANGE));
 116         }
 117     }
 118
 119     private static class DrawMapEnabledRequest extends UnaryRead<Resource, Boolean> {
 120
 121         public DrawMapEnabledRequest(Resource diagram) {
 122             super(diagram);
 123         }
 124
 125         @Override
 126         public Boolean perform(ReadGraph graph) throws DatabaseException {
 127             return DistrictNetworkUtil.drawMapEnabled(graph, parameter);
 128         }
 129     }
 130
 131     private static class DrawMapEnabledListener implements Listener<Boolean> {
 132
 133         private static final Logger LOGGER = LoggerFactory.getLogger(DrawMapEnabledListener.class);
 134
 135         private Consumer<Boolean> callback;
 136         private Supplier<Boolean> isDisposed;
 137
 138         public DrawMapEnabledListener(Consumer<Boolean> callback, Supplier<Boolean> isDisposed) {
 139             this.callback = callback;
 140             this.isDisposed = isDisposed;
 141         }
 142
 143         @Override
 144         public void execute(Boolean result) {
 145             callback.accept(result);
 146         }
 147
 148         @Override
 149         public void exception(Throwable t) {
 150             LOGGER.error("Could not listen if draw map is enabled", t);
 151         }
 152
 153         @Override
 154         public boolean isDisposed() {
 155             return isDisposed.get();
 156         }
 157     }
 158
 159     private static class MapBackgroundColorRequest extends UnaryRead<Resource, RGB.Integer> {
 160
 161         public MapBackgroundColorRequest(Resource diagram) {
 162             super(diagram);
 163         }
 164
 165         @Override
 166         public RGB.Integer perform(ReadGraph graph) throws DatabaseException {
 167             return DistrictNetworkUtil.backgroundColor(graph, parameter);
 168         }
 169     }
 170
 171     private static class MapBackgroundColorListener implements Listener<RGB.Integer> {
 172
 173         private static final Logger LOGGER = LoggerFactory.getLogger(DrawMapEnabledListener.class);
 174
 175         private Consumer<RGB.Integer> callback;
 176         private Supplier<Boolean> isDisposed;
 177
 178         public MapBackgroundColorListener(Consumer<RGB.Integer> callback, Supplier<Boolean> isDisposed) {
 179             this.callback = callback;
 180             this.isDisposed = isDisposed;
 181         }
 182
 183         @Override
 184         public void execute(RGB.Integer result) {
 185             callback.accept(result);
 186         }
 187
 188         @Override
 189         public void exception(Throwable t) {
 190             LOGGER.error("Could not listen map background color", t);
 191         }
 192
 193         @Override
 194         public boolean isDisposed() {
 195             return isDisposed.get();
 196         }
 197     }
 198 }