Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/client/ui/map/FloodMap.java @ 5622:b28a6d05e969
Add a new mechanism in mapfish print call to add arbitary data maps
Data properties are identified by starting with mapfish-data
and they are then split in info value pairs where info
can be the description of the information and value the value
of the information to be transported in the data map.
author | Andre Heinecke <aheinecke@intevation.de> |
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date | Tue, 09 Apr 2013 19:04:32 +0200 |
parents | 4f935415bb20 |
children |
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package de.intevation.flys.client.client.ui.map; import org.gwtopenmaps.openlayers.client.Bounds; import org.gwtopenmaps.openlayers.client.LonLat; import org.gwtopenmaps.openlayers.client.Map; import org.gwtopenmaps.openlayers.client.MapOptions; import org.gwtopenmaps.openlayers.client.MapWidget; import org.gwtopenmaps.openlayers.client.Style; import org.gwtopenmaps.openlayers.client.control.Attribution; import org.gwtopenmaps.openlayers.client.control.ScaleLine; import org.gwtopenmaps.openlayers.client.control.ScaleLineOptions; import org.gwtopenmaps.openlayers.client.event.VectorFeatureAddedListener; import org.gwtopenmaps.openlayers.client.feature.VectorFeature; import org.gwtopenmaps.openlayers.client.format.GeoJSON; import org.gwtopenmaps.openlayers.client.layer.Layer; import org.gwtopenmaps.openlayers.client.layer.Vector; import org.gwtopenmaps.openlayers.client.layer.VectorOptions; import org.gwtopenmaps.openlayers.client.util.Attributes; import org.gwtopenmaps.openlayers.client.util.JObjectArray; import org.gwtopenmaps.openlayers.client.util.JSObject; public class FloodMap implements VectorFeatureAddedListener { public static final String LAYER_BARRIERS = "vector_layer_barriers"; public static final String MARK_SELECTED = "mark.selected"; public static final int SELECTED_STROKE_WIDTH = 2; protected MapWidget mapWidget; protected Map map; protected Vector barrierLayer; protected String srid; protected Bounds maxExtent; protected ScaleLine scaleLine; public FloodMap(String srid, Bounds maxExtent, int width, int height) { this.srid = srid; this.maxExtent = maxExtent; recreateWidget(width, height); getBarrierLayer(); } public void recreateWidget(int width, int height) { final MapOptions opts = new MapOptions(); opts.setControls(new JObjectArray(new JSObject[] {})); opts.setNumZoomLevels(16); opts.setProjection(getRiverProjection()); opts.setMaxExtent(maxExtent); opts.setUnits("m"); opts.setMaxResolution(500); // TODO DO THIS ON THE FLY mapWidget = new MapWidget( Integer.toString(width - 4), Integer.toString(height), opts); map = mapWidget.getMap(); map.addControl(new Attribution()); } @Override public void onFeatureAdded(FeatureAddedEvent evt) { final VectorFeature feature = evt.getVectorFeature(); final Attributes attrs = feature.getAttributes(); final String type = attrs.getAttributeAsString("typ"); if (type == null || type.length() == 0) { return; } final Style style = getStyle(type); if (style != null) { feature.setStyle(style); } // necessary, otherwise the setStyle() has no effect getBarrierLayer().redraw(); } /** * Returns an OpenLayers.Style based on a given type. * * @param type Type can be one of "pipe1", "pipe2", "ditch", "dam", * "ringdike". * * @return an OpenLayers.Style object. */ public static Style getStyle(String type) { final Style style = new Style(); if (type == null) { return null; } if (type.equals(DrawControl.BARRIER_PIPE1) || type.equals(DrawControl.BARRIER_PIPE1_VALUE) ) { style.setFillColor("#800080"); style.setStrokeColor("#800080"); } else if (type.equals(DrawControl.BARRIER_PIPE2) || type.equals(DrawControl.BARRIER_PIPE2_VALUE) ) { style.setFillColor("#808080"); style.setStrokeColor("#808080"); } else if (type.equals(DrawControl.BARRIER_DAM) || type.equals(DrawControl.BARRIER_DAM_VALUE) ) { style.setFillColor("#008000"); style.setStrokeColor("#008000"); } else if (type.equals(DrawControl.BARRIER_DITCH) || type.equals(DrawControl.BARRIER_DITCH_VALUE) ) { style.setFillColor("#800000"); style.setStrokeColor("#800000"); } else if (type.equals(DrawControl.BARRIER_RINGDIKE) || type.equals(DrawControl.BARRIER_RINGDIKE_VALUE) ) { style.setFill(false); style.setStrokeColor("#FF8000"); } return style; } public MapWidget getMapWidget() { return mapWidget; } public Map getMap() { return map; } public String getRiverProjection() { return "EPSG:" + srid; } public Bounds getMaxExtent() { return maxExtent; } public Vector getBarrierLayer() { if (barrierLayer == null) { final VectorOptions opts = new VectorOptions(); opts.setProjection(getRiverProjection()); opts.setMaxExtent(getMaxExtent()); barrierLayer = new Vector(LAYER_BARRIERS, opts); barrierLayer.setIsBaseLayer(true); map.addLayer(barrierLayer); map.setLayerZIndex(barrierLayer, 1000); barrierLayer.addVectorFeatureAddedListener(this); } return barrierLayer; } public String getFeaturesAsGeoJSON() { // disable features before exporting to GeoJSON disableFeatures(); final VectorFeature[] features = barrierLayer.getFeatures(); if (features == null || features.length == 0) { return null; } return new GeoJSON().write(features); } public void setSize(String width, String height) { mapWidget.setWidth(width); mapWidget.setHeight(height); final int currentZoom = map.getZoom(); final LonLat currentCenter = map.getCenter(); map.updateSize(); map.zoomTo(currentZoom); map.setCenter(currentCenter); } public void addLayer(Layer layer) { if (layer != null) { map.addLayer(layer); final int index = map.getLayerIndex(layer); final int newIndex = index * (-1) + 1; map.raiseLayer(layer, newIndex); update(); } } public void hideBarrierLayer () { if (getBarrierLayer() != null) { barrierLayer.setIsVisible(false); } } public void showBarrierLayer () { if (getBarrierLayer() != null) { barrierLayer.setIsVisible(true); } } public void selectFeature(VectorFeature feature) { if (feature != null) { selectFeatures(new VectorFeature[] { feature } ); } } public void selectFeatures(VectorFeature[] features) { if (features == null || features.length == 0) { return; } for (final VectorFeature feature: features) { final Attributes attr = feature.getAttributes(); if (attr.getAttributeAsInt(MARK_SELECTED) == 1) { continue; } attr.setAttribute(MARK_SELECTED, 1); final Style style = feature.getStyle(); final double strokeWidth = style.getStrokeWidth(); style.setStrokeWidth(strokeWidth+SELECTED_STROKE_WIDTH); } getBarrierLayer().redraw(); } public void disableFeatures() { final Vector barriers = getBarrierLayer(); final VectorFeature[] features = barriers.getFeatures(); if (features == null || features.length == 0) { return; } disableFeatures(features); } public void disableFeature(VectorFeature feature) { if (feature != null) { disableFeatures(new VectorFeature[] { feature }); } } public void disableFeatures(VectorFeature[] features) { if (features == null || features.length == 0) { return; } for (final VectorFeature feature: features) { final Attributes attr = feature.getAttributes(); if (attr.getAttributeAsInt(MARK_SELECTED) == 0) { continue; } attr.setAttribute(FloodMap.MARK_SELECTED, 0); final Style style = feature.getStyle(); final double strokeWidth = style.getStrokeWidth(); style.setStrokeWidth(strokeWidth-SELECTED_STROKE_WIDTH); } getBarrierLayer().redraw(); } public void update() { final Layer[] layers = map.getLayers(); for (final Layer l: layers) { l.redraw(); } } public void updateSize() { this.map.updateSize(); } public void activateScaleLine(boolean activate) { if (activate) { final ScaleLineOptions slOpts = new ScaleLineOptions(); slOpts.setBottomInUnits("m"); slOpts.setBottomOutUnits("km"); slOpts.setTopInUnits(""); slOpts.setTopOutUnits(""); scaleLine = new ScaleLine(slOpts); this.map.addControl(scaleLine); } else if (!activate && scaleLine != null){ this.map.removeControl(scaleLine); } } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :