ingo@797: package de.intevation.flys.client.client.ui.map;
ingo@797: 
ingo@823: import org.gwtopenmaps.openlayers.client.Bounds;
ingo@797: import org.gwtopenmaps.openlayers.client.Map;
ingo@797: import org.gwtopenmaps.openlayers.client.MapOptions;
ingo@797: import org.gwtopenmaps.openlayers.client.MapWidget;
ingo@882: import org.gwtopenmaps.openlayers.client.Style;
ingo@882: import org.gwtopenmaps.openlayers.client.event.VectorFeatureAddedListener;
ingo@882: import org.gwtopenmaps.openlayers.client.event.VectorFeatureAddedListener.FeatureAddedEvent;
ingo@833: import org.gwtopenmaps.openlayers.client.feature.VectorFeature;
ingo@833: import org.gwtopenmaps.openlayers.client.format.GeoJSON;
ingo@800: import org.gwtopenmaps.openlayers.client.layer.Vector;
ingo@823: import org.gwtopenmaps.openlayers.client.layer.VectorOptions;
ingo@882: import org.gwtopenmaps.openlayers.client.util.Attributes;
ingo@797: import org.gwtopenmaps.openlayers.client.util.JObjectArray;
ingo@797: import org.gwtopenmaps.openlayers.client.util.JSObject;
ingo@797: 
ingo@797: 
ingo@882: public class FloodMap implements VectorFeatureAddedListener {
ingo@797: 
ingo@800:     public static final String LAYER_BARRIERS = "vector_layer_barriers";
ingo@800: 
ingo@1315:     public static final String MARK_SELECTED = "mark.selected";
ingo@1315: 
ingo@1317:     public static final int SELECTED_STROKE_WIDTH = 2;
ingo@1317: 
ingo@797:     protected MapWidget mapWidget;
ingo@797:     protected Map       map;
ingo@800:     protected Vector    barrierLayer;
ingo@823:     protected String    srid;
ingo@823:     protected Bounds    maxExtent;
ingo@797: 
ingo@797: 
ingo@823:     public FloodMap(String srid, Bounds maxExtent) {
ingo@823:         this.srid      = srid;
ingo@823:         this.maxExtent = maxExtent;
ingo@823: 
ingo@797:         MapOptions opts = new MapOptions();
ingo@797:         opts.setControls(new JObjectArray(new JSObject[] {}));
ingo@797:         opts.setNumZoomLevels(16);
ingo@797:         opts.setProjection(getRiverProjection());
ingo@823:         opts.setMaxExtent(maxExtent);
ingo@881:         opts.setUnits("m");
ingo@823:         opts.setMaxResolution(500); // TODO DO THIS ON THE FLY
ingo@797: 
ingo@797:         mapWidget = new MapWidget("510px", "635px", opts);
ingo@797:         map       = mapWidget.getMap();
ingo@806: 
ingo@806:         getBarrierLayer();
ingo@797:     }
ingo@797: 
ingo@797: 
ingo@882:     @Override
ingo@882:     public void onFeatureAdded(FeatureAddedEvent evt) {
ingo@882:         VectorFeature feature = evt.getVectorFeature();
ingo@882: 
ingo@882:         Attributes attrs = feature.getAttributes();
ingo@882:         String     type  = attrs.getAttributeAsString("typ");
ingo@882: 
ingo@882:         if (type == null || type.length() == 0) {
ingo@882:             return;
ingo@882:         }
ingo@882: 
ingo@1315:         Style style = getStyle(type);
ingo@1315:         if (style != null) {
ingo@1315:             feature.setStyle(style);
ingo@1315:         }
ingo@882: 
ingo@882:         // necessary, otherwise the setStyle() has no effect
ingo@882:         barrierLayer.redraw();
ingo@882:     }
ingo@882: 
ingo@882: 
ingo@882:     /**
ingo@882:      * Returns an OpenLayers.Style based on a given type.
ingo@882:      *
ingo@882:      * @param type Type can be one of "pipe1", "pipe2", "ditch", "dam",
ingo@882:      * "ringdike".
ingo@882:      *
ingo@882:      * @return an OpenLayers.Style object.
ingo@882:      */
ingo@882:     public static Style getStyle(String type) {
ingo@882:         Style style = new Style();
ingo@882: 
ingo@1315:         if (type == null) {
ingo@1315:             return null;
ingo@1315:         }
ingo@1315: 
ingo@882:         if (type.equals(DrawControl.BARRIER_PIPE1)
ingo@882:             || type.equals(DrawControl.BARRIER_PIPE1_VALUE)
ingo@882:         ) {
ingo@882:             style.setFillColor("#800080");
ingo@882:             style.setStrokeColor("#800080");
ingo@882:         }
ingo@882:         else if (type.equals(DrawControl.BARRIER_PIPE2)
ingo@882:               || type.equals(DrawControl.BARRIER_PIPE2_VALUE)
ingo@882:         ) {
ingo@882:             style.setFillColor("#808080");
ingo@882:             style.setStrokeColor("#808080");
ingo@882:         }
ingo@882:         else if (type.equals(DrawControl.BARRIER_DAM)
ingo@882:               || type.equals(DrawControl.BARRIER_DAM_VALUE)
ingo@882:         ) {
ingo@882:             style.setFillColor("#008000");
ingo@882:             style.setStrokeColor("#008000");
ingo@882:         }
ingo@882:         else if (type.equals(DrawControl.BARRIER_DITCH)
ingo@882:               || type.equals(DrawControl.BARRIER_DITCH_VALUE)
ingo@882:         ) {
ingo@882:             style.setFillColor("#800000");
ingo@882:             style.setStrokeColor("#800000");
ingo@882:         }
ingo@882:         else if (type.equals(DrawControl.BARRIER_RINGDIKE)
ingo@882:               || type.equals(DrawControl.BARRIER_RINGDIKE_VALUE)
ingo@882:         ) {
ingo@882:             style.setFill(false);
ingo@882:             style.setStrokeColor("#FF8000");
ingo@882:         }
ingo@882: 
ingo@882:         return style;
ingo@882:     }
ingo@882: 
ingo@882: 
ingo@797:     public MapWidget getMapWidget() {
ingo@797:         return mapWidget;
ingo@797:     }
ingo@797: 
ingo@797: 
ingo@797:     public Map getMap() {
ingo@797:         return map;
ingo@797:     }
ingo@797: 
ingo@797: 
ingo@797:     public String getRiverProjection() {
ingo@823:         return "EPSG:" + srid;
ingo@797:     }
ingo@797: 
ingo@797: 
ingo@1315:     public Bounds getMaxExtent() {
ingo@1315:         return maxExtent;
ingo@1315:     }
ingo@1315: 
ingo@1315: 
ingo@800:     public Vector getBarrierLayer() {
ingo@800:         if (barrierLayer == null) {
ingo@823:             VectorOptions opts = new VectorOptions();
ingo@823:             opts.setProjection(getRiverProjection());
ingo@1315:             opts.setMaxExtent(getMaxExtent());
ingo@823: 
ingo@823:             barrierLayer = new Vector(LAYER_BARRIERS, opts);
ingo@806:             barrierLayer.setIsBaseLayer(true);
ingo@823: 
ingo@800:             map.addLayer(barrierLayer);
ingo@882: 
ingo@882:             barrierLayer.addVectorFeatureAddedListener(this);
ingo@800:         }
ingo@800: 
ingo@800:         return barrierLayer;
ingo@800:     }
ingo@800: 
ingo@800: 
ingo@833:     public String getFeaturesAsGeoJSON() {
ingo@1317:         // disable features before exporting to GeoJSON
ingo@1317:         disableFeatures();
ingo@1317: 
ingo@833:         VectorFeature[] features = barrierLayer.getFeatures();
ingo@833: 
ingo@833:         if (features == null || features.length == 0) {
ingo@833:             return null;
ingo@833:         }
ingo@833: 
ingo@833:         return new GeoJSON().write(features);
ingo@833:     }
ingo@833: 
ingo@833: 
ingo@797:     public void setSize(String width, String height) {
ingo@797:         mapWidget.setWidth(width);
ingo@797:         mapWidget.setHeight(height);
ingo@797:     }
raimund@915: 
raimund@915: 
raimund@915:     public void hideBarrierLayer () {
raimund@915:         if (barrierLayer != null) {
raimund@915:             barrierLayer.setIsVisible(false);
raimund@915:         }
raimund@915:     }
raimund@915: 
raimund@915:     public void showBarrierLayer () {
raimund@915:         if (barrierLayer != null) {
raimund@915:             barrierLayer.setIsVisible(true);
raimund@915:         }
raimund@915:     }
ingo@1317: 
ingo@1317: 
ingo@1317:     public void selectFeature(VectorFeature feature) {
ingo@1317:         if (feature != null) {
ingo@1317:             selectFeatures(new VectorFeature[] { feature } );
ingo@1317:         }
ingo@1317:     }
ingo@1317: 
ingo@1317: 
ingo@1317:     public void selectFeatures(VectorFeature[] features) {
ingo@1317:         if (features == null || features.length == 0) {
ingo@1317:             return;
ingo@1317:         }
ingo@1317: 
ingo@1317:         for (VectorFeature feature: features) {
ingo@1317:             Attributes attr = feature.getAttributes();
ingo@1317: 
ingo@1317:             if (attr.getAttributeAsInt(MARK_SELECTED) == 1) {
ingo@1317:                 continue;
ingo@1317:             }
ingo@1317: 
ingo@1317:             attr.setAttribute(MARK_SELECTED, 1);
ingo@1317: 
ingo@1317:             Style style        = feature.getStyle();
ingo@1317:             double strokeWidth = style.getStrokeWidth();
ingo@1317: 
ingo@1317:             style.setStrokeWidth(strokeWidth+SELECTED_STROKE_WIDTH);
ingo@1317:         }
ingo@1317: 
ingo@1317:         getBarrierLayer().redraw();
ingo@1317:     }
ingo@1317: 
ingo@1317: 
ingo@1317:     public void disableFeatures() {
ingo@1317:         Vector          barriers = getBarrierLayer();
ingo@1317:         VectorFeature[] features = barriers.getFeatures();
ingo@1317: 
ingo@1317:         if (features == null || features.length == 0) {
ingo@1317:             return;
ingo@1317:         }
ingo@1317: 
ingo@1317:         disableFeatures(features);
ingo@1317:     }
ingo@1317: 
ingo@1317: 
ingo@1317:     public void disableFeature(VectorFeature feature) {
ingo@1317:         if (feature != null) {
ingo@1317:             disableFeatures(new VectorFeature[] { feature });
ingo@1317:         }
ingo@1317:     }
ingo@1317: 
ingo@1317: 
ingo@1317:     public void disableFeatures(VectorFeature[] features) {
ingo@1317:         if (features == null || features.length == 0) {
ingo@1317:             return;
ingo@1317:         }
ingo@1317: 
ingo@1317:         for (VectorFeature feature: features) {
ingo@1317:             Attributes attr = feature.getAttributes();
ingo@1317: 
ingo@1317:             if (attr.getAttributeAsInt(MARK_SELECTED) == 0) {
ingo@1317:                 continue;
ingo@1317:             }
ingo@1317: 
ingo@1317:             attr.setAttribute(FloodMap.MARK_SELECTED, 0);
ingo@1317: 
ingo@1317:             Style style        = feature.getStyle();
ingo@1317:             double strokeWidth = style.getStrokeWidth();
ingo@1317: 
ingo@1317:             style.setStrokeWidth(strokeWidth-SELECTED_STROKE_WIDTH);
ingo@1317:         }
ingo@1317: 
ingo@1317:         getBarrierLayer().redraw();
ingo@1317:     }
ingo@797: }
ingo@799: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :