Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/client/ui/map/FloodMap.java @ 4215:c179cd02177d
Logout the current user
Add code to the logout button to remove the current user from the session and to
redirect the browser window to the login page.
Part of flys/issue916 (Logout: "Abmelden" Knopf mit Funktion belegen)
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Tue, 23 Oct 2012 09:59:16 +0200 |
parents | 6d749af6a9c2 |
children | c84630d544a1 |
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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.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) { this.srid = srid; this.maxExtent = maxExtent; recreateWidget("100%", "99px"); getBarrierLayer(); } public void recreateWidget(String width, String height) { 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(width, height, opts); map = mapWidget.getMap(); } @Override public void onFeatureAdded(FeatureAddedEvent evt) { VectorFeature feature = evt.getVectorFeature(); Attributes attrs = feature.getAttributes(); String type = attrs.getAttributeAsString("typ"); if (type == null || type.length() == 0) { return; } Style style = getStyle(type); if (style != null) { feature.setStyle(style); } // necessary, otherwise the setStyle() has no effect barrierLayer.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) { 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) { VectorOptions opts = new VectorOptions(); opts.setProjection(getRiverProjection()); opts.setMaxExtent(getMaxExtent()); barrierLayer = new Vector(LAYER_BARRIERS, opts); barrierLayer.setIsBaseLayer(true); map.addLayer(barrierLayer); barrierLayer.addVectorFeatureAddedListener(this); } return barrierLayer; } public String getFeaturesAsGeoJSON() { // disable features before exporting to GeoJSON disableFeatures(); 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); int currentZoom = map.getZoom(); LonLat currentCenter = map.getCenter(); map.updateSize(); map.zoomTo(currentZoom); map.setCenter(currentCenter); } public void addLayer(Layer layer) { if (layer != null) { map.addLayer(layer); int index = map.getLayerIndex(layer); int newIndex = index * (-1) + 1; map.raiseLayer(layer, newIndex); update(); } } public void hideBarrierLayer () { if (barrierLayer != null) { barrierLayer.setIsVisible(false); } } public void showBarrierLayer () { if (barrierLayer != 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 (VectorFeature feature: features) { Attributes attr = feature.getAttributes(); if (attr.getAttributeAsInt(MARK_SELECTED) == 1) { continue; } attr.setAttribute(MARK_SELECTED, 1); Style style = feature.getStyle(); double strokeWidth = style.getStrokeWidth(); style.setStrokeWidth(strokeWidth+SELECTED_STROKE_WIDTH); } getBarrierLayer().redraw(); } public void disableFeatures() { Vector barriers = getBarrierLayer(); 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 (VectorFeature feature: features) { Attributes attr = feature.getAttributes(); if (attr.getAttributeAsInt(MARK_SELECTED) == 0) { continue; } attr.setAttribute(FloodMap.MARK_SELECTED, 0); Style style = feature.getStyle(); double strokeWidth = style.getStrokeWidth(); style.setStrokeWidth(strokeWidth-SELECTED_STROKE_WIDTH); } getBarrierLayer().redraw(); } public void update() { Layer[] layers = map.getLayers(); for (Layer l: layers) { l.redraw(); } } public void activateScaleLine(boolean activate) { if (activate) { 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 :