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.awt.geom.AffineTransform;
   5 import java.util.concurrent.TimeUnit;
   6 import java.util.function.Consumer;
   7 import java.util.function.Supplier;
   8
   9 import org.simantics.datatypes.literal.RGB;
  10 import org.simantics.db.ReadGraph;
  11 import org.simantics.db.Resource;
  12 import org.simantics.db.common.request.UnaryRead;
  13 import org.simantics.db.exception.DatabaseException;
  14 import org.simantics.db.procedure.Listener;
  15 import org.simantics.diagram.ui.DiagramModelHints;
  16 import org.simantics.district.network.DistrictNetworkUtil;
  17 import org.simantics.district.network.ui.participants.DNPointerInteractor;
  18 import org.simantics.district.network.ui.participants.MapRulerPainter;
  19 import org.simantics.g2d.canvas.ICanvasContext;
  20 import org.simantics.g2d.canvas.impl.CanvasContext;
  21 import org.simantics.g2d.diagram.handler.PickRequest.PickFilter;
  22 import org.simantics.g2d.diagram.participant.DelayedBatchElementPainter;
  23 import org.simantics.g2d.diagram.participant.ElementPainter;
  24 import org.simantics.g2d.diagram.participant.Selection;
  25 import org.simantics.g2d.diagram.participant.ZOrderHandler;
  26 import org.simantics.g2d.participant.BackgroundPainter;
  27 import org.simantics.g2d.participant.GridPainter;
  28 import org.simantics.g2d.participant.PanZoomRotateHandler;
  29 import org.simantics.g2d.participant.RenderingQualityInteractor;
  30 import org.simantics.g2d.participant.TransformUtil;
  31 import org.simantics.g2d.participant.ZoomToAreaHandler;
  32 import org.simantics.maps.MapScalingTransform;
  33 import org.simantics.maps.eclipse.MapPainter;
  34 import org.simantics.maps.sg.commands.MapCommands;
  35 import org.simantics.modeling.ui.diagramEditor.DiagramViewer;
  36 import org.simantics.scenegraph.g2d.events.command.CommandEvent;
  37 import org.simantics.scenegraph.g2d.events.command.Commands;
  38 import org.simantics.utils.datastructures.hints.IHintContext;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42 public class DistrictDiagramViewer extends DiagramViewer {
  43
  44     private static final Logger LOGGER = LoggerFactory.getLogger(DistrictDiagramViewer.class);
  45
  46     @Override
  47     protected void addDiagramParticipants(ICanvasContext ctx) {
  48         ctx.add(new ZOrderHandler());
  49         ctx.add(new Selection());
  50         ctx.add(new ElementPainter());
  51         ctx.add(new DNPointerInteractor());
  52
  53         AffineTransform tr = new AffineTransform(MapScalingTransform.INSTANCE);
  54         ctx.add(new MapPainter(tr));
  55
  56         ctx.add(new NetworkDrawingParticipant(tr));
  57     }
  58
  59     protected String getPopupId() {
  60         return "#DistrictDiagramPopup";
  61     }
  62
  63     @Override
  64     public void initializeCanvasContext(CanvasContext ctx) {
  65         super.initializeCanvasContext(ctx);
  66         IHintContext h = ctx.getDefaultHintContext();
  67         h.setHint(PanZoomRotateHandler.KEY_ZOOM_IN_LIMIT, 10000.0);
  68         h.setHint(PanZoomRotateHandler.KEY_ZOOM_OUT_LIMIT, 0.01);
  69         h.setHint(DiagramModelHints.KEY_DIAGRAM_RESOURCE, diagramResource);
  70     }
  71
  72     @Override
  73     protected void addPainterParticipants(ICanvasContext ctx) {
  74         ctx.add(new RenderingQualityInteractor());
  75         ctx.add(new DelayedBatchElementPainter(PickFilter.FILTER_MONITORS, 500, TimeUnit.MILLISECONDS));
  76     }
  77
  78     @Override
  79     protected void addGridRulerBackgroundParticipants(CanvasContext ctx) {
  80         ctx.add(new GridPainter());
  81         ctx.add(new MapRulerPainter());
  82         ctx.add(new BackgroundPainter());
  83     }
  84
  85     protected void addViewManipulationParticipants(CanvasContext ctx) {
  86         // Let's replace with our special util
  87         TransformUtil util = ctx.getAtMostOneItemOfClass(TransformUtil.class);
  88         if (util != null)
  89             ctx.remove(util);
  90         ctx.add(new DistrictTransformUtil());
  91         ctx.add(new DistrictPanZoomRotateHandler());
  92         //ctx.add(new MousePanZoomInteractor());
  93         //ctx.add(new MultitouchPanZoomRotateInteractor());
  94         // ctx.add( new OrientationRestorer() );
  95         ctx.add(new ZoomToAreaHandler());
  96     }
  97
  98     @Override
  99     protected void loadPageSettings(ICanvasContext ctx) {
 100         super.loadPageSettings(ctx);
 101         // this might be the wrong place to start such listening but at least
 102         // super.loadPageSettings() does async-db-operations
 103         setupDrawMapEnabled();
 104         setupBackgroundColor();
 105     }
 106
 107     private void setupDrawMapEnabled() {
 108         sessionContext.getSession().asyncRequest(new DrawMapEnabledRequest(getInputResource()), new DrawMapEnabledListener(
 109                 result -> canvasContext.getEventQueue().queueEvent(new CommandEvent(canvasContext, System.currentTimeMillis(), result ? Commands.MAP_ENABLE : Commands.MAP_DISABLE)),
 110                 () -> DistrictDiagramViewer.this.isDisposed()));
 111     }
 112
 113     private void setupBackgroundColor() {
 114         sessionContext.getSession().asyncRequest(new MapBackgroundColorRequest(getInputResource()), new MapBackgroundColorListener(
 115                 result -> queueBackgroundColorChangeEvent(result),
 116                 () -> DistrictDiagramViewer.this.isDisposed()));
 117     }
 118
 119     private void queueBackgroundColorChangeEvent(RGB.Integer result) {
 120         if (result != null) {
 121             Color backgroundColor = new Color(result.red, result.green, result.blue);
 122             canvasContext.getDefaultHintContext().setHint(MapCommands.KEY_MAP_BACKGROUND_COLOR, backgroundColor);
 123             canvasContext.getEventQueue().queueEvent(new CommandEvent(canvasContext, System.currentTimeMillis(), MapCommands.MAP_BACKGROUND_COLOR_CHANGE));
 124         }
 125     }
 126
 127     private static class DrawMapEnabledRequest extends UnaryRead<Resource, Boolean> {
 128
 129         public DrawMapEnabledRequest(Resource diagram) {
 130             super(diagram);
 131         }
 132
 133         @Override
 134         public Boolean perform(ReadGraph graph) throws DatabaseException {
 135             return DistrictNetworkUtil.drawMapEnabled(graph, parameter);
 136         }
 137     }
 138
 139     private static class DrawMapEnabledListener implements Listener<Boolean> {
 140
 141         private static final Logger LOGGER = LoggerFactory.getLogger(DrawMapEnabledListener.class);
 142
 143         private Consumer<Boolean> callback;
 144         private Supplier<Boolean> isDisposed;
 145
 146         public DrawMapEnabledListener(Consumer<Boolean> callback, Supplier<Boolean> isDisposed) {
 147             this.callback = callback;
 148             this.isDisposed = isDisposed;
 149         }
 150
 151         @Override
 152         public void execute(Boolean result) {
 153             callback.accept(result);
 154         }
 155
 156         @Override
 157         public void exception(Throwable t) {
 158             LOGGER.error("Could not listen if draw map is enabled", t);
 159         }
 160
 161         @Override
 162         public boolean isDisposed() {
 163             return isDisposed.get();
 164         }
 165     }
 166
 167     private static class MapBackgroundColorRequest extends UnaryRead<Resource, RGB.Integer> {
 168
 169         public MapBackgroundColorRequest(Resource diagram) {
 170             super(diagram);
 171         }
 172
 173         @Override
 174         public RGB.Integer perform(ReadGraph graph) throws DatabaseException {
 175             return DistrictNetworkUtil.backgroundColor(graph, parameter);
 176         }
 177     }
 178
 179     private static class MapBackgroundColorListener implements Listener<RGB.Integer> {
 180
 181         private static final Logger LOGGER = LoggerFactory.getLogger(DrawMapEnabledListener.class);
 182
 183         private Consumer<RGB.Integer> callback;
 184         private Supplier<Boolean> isDisposed;
 185
 186         public MapBackgroundColorListener(Consumer<RGB.Integer> callback, Supplier<Boolean> isDisposed) {
 187             this.callback = callback;
 188             this.isDisposed = isDisposed;
 189         }
 190
 191         @Override
 192         public void execute(RGB.Integer result) {
 193             callback.accept(result);
 194         }
 195
 196         @Override
 197         public void exception(Throwable t) {
 198             LOGGER.error("Could not listen map background color", t);
 199         }
 200
 201         @Override
 202         public boolean isDisposed() {
 203             return isDisposed.get();
 204         }
 205     }
 206 }