ingo@799: package de.intevation.flys.client.client.ui.map;
ingo@799: 
ingo@799: import com.google.gwt.core.client.GWT;
ingo@799: 
ingo@799: import com.smartgwt.client.types.SelectionType;
ingo@800: import com.smartgwt.client.widgets.Canvas;
ingo@799: import com.smartgwt.client.widgets.ImgButton;
ingo@799: import com.smartgwt.client.widgets.events.ClickEvent;
ingo@799: import com.smartgwt.client.widgets.events.ClickHandler;
ingo@799: import com.smartgwt.client.widgets.layout.HLayout;
ingo@799: 
ingo@799: import org.gwtopenmaps.openlayers.client.Map;
ingo@799: import org.gwtopenmaps.openlayers.client.control.DragPan;
ingo@800: import org.gwtopenmaps.openlayers.client.control.SelectFeature;
ingo@800: import org.gwtopenmaps.openlayers.client.control.SelectFeatureOptions;
ingo@799: import org.gwtopenmaps.openlayers.client.control.ZoomBox;
ingo@800: import org.gwtopenmaps.openlayers.client.feature.VectorFeature;
ingo@800: import org.gwtopenmaps.openlayers.client.layer.Vector;
ingo@800: import org.gwtopenmaps.openlayers.client.util.Attributes;
ingo@799: 
ingo@799: import de.intevation.flys.client.client.FLYSConstants;
ingo@800: import de.intevation.flys.client.client.utils.EnableDisableCmd;
ingo@799: 
ingo@799: 
ingo@799: /**
ingo@799:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@799:  */
ingo@799: public class MapToolbar extends HLayout {
ingo@799: 
ingo@800:     public static final String MARK_TO_DELETE = "mark.delete";
ingo@800: 
ingo@799:     protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
ingo@799: 
ingo@800:     protected FloodMap      floodMap;
ingo@800:     protected DragPan       pan;
ingo@800:     protected ZoomBox       zoomBox;
ingo@800:     protected SelectFeature selectFeature;
ingo@799: 
ingo@799:     protected ImgButton zoomToMaxButton;
ingo@799:     protected ImgButton zoomBoxButton;
ingo@799:     protected ImgButton zoomOutButton;
ingo@799:     protected ImgButton panButton;
ingo@800:     protected ImgButton selectButton;
ingo@800:     protected ImgButton removeButton;
ingo@800: 
ingo@802:     protected DrawControl    drawControl;
ingo@802:     protected MeasureControl measureControl;
ingo@800: 
ingo@800:     protected Canvas position;
ingo@799: 
ingo@799: 
ingo@800:     public MapToolbar(FloodMap floodMap, Canvas wrapper) {
ingo@799:         super();
ingo@799: 
ingo@799:         setWidth100();
ingo@799:         setHeight(30);
ingo@799:         setMembersMargin(10);
ingo@799:         setPadding(5);
ingo@799:         setBorder("1px solid black");
ingo@799: 
ingo@799:         this.floodMap = floodMap;
ingo@799: 
ingo@800:         Canvas spacer = new Canvas();
ingo@800:         spacer.setWidth("*");
ingo@800: 
ingo@799:         zoomToMaxButton = createMaxExtentControl();
ingo@799:         zoomBoxButton   = createZoomBoxControl();
ingo@799:         zoomOutButton   = createZoomOutControl();
ingo@799:         panButton       = createPanControl();
ingo@800:         position        = createMousePosition(wrapper);
ingo@800:         drawControl     = createDrawControl();
ingo@800:         selectButton    = createSelectFeatureControl();
ingo@800:         removeButton    = createRemoveFeatureControl();
ingo@802:         measureControl  = createMeasureControl();
ingo@799: 
ingo@799:         addMember(zoomToMaxButton);
ingo@799:         addMember(zoomBoxButton);
ingo@799:         addMember(zoomOutButton);
ingo@799:         addMember(panButton);
ingo@800:         addMember(drawControl);
ingo@800:         addMember(selectButton);
ingo@800:         addMember(removeButton);
ingo@802:         addMember(measureControl);
ingo@800:         addMember(spacer);
ingo@800:         addMember(position);
ingo@799:     }
ingo@799: 
ingo@799: 
ingo@799:     protected Map getMap() {
ingo@799:         return floodMap.getMap();
ingo@799:     }
ingo@799: 
ingo@799: 
ingo@799:     protected void activatePan(boolean activate) {
ingo@799:         if (activate) {
ingo@799:             panButton.select();
ingo@799:             pan.activate();
ingo@799:         }
ingo@799:         else {
ingo@799:             panButton.deselect();
ingo@799:             pan.deactivate();
ingo@799:         }
ingo@799:     }
ingo@799: 
ingo@799: 
ingo@799:     protected void activateZoomBox(boolean activate) {
ingo@799:         if (activate) {
ingo@799:             zoomBoxButton.select();
ingo@799:             zoomBox.activate();
ingo@799:         }
ingo@799:         else {
ingo@799:             zoomBoxButton.deselect();
ingo@799:             zoomBox.deactivate();
ingo@799:         }
ingo@799:     }
ingo@799: 
ingo@799: 
ingo@800:     protected void activateDrawFeature(boolean activate) {
ingo@800:         drawControl.activate(activate);
ingo@800:     }
ingo@800: 
ingo@800: 
ingo@800:     protected void activateSelectFeature(boolean activate) {
ingo@800:         if (activate) {
ingo@800:             selectButton.select();
ingo@800:             selectFeature.activate();
ingo@800:         }
ingo@800:         else {
ingo@800:             selectButton.deselect();
ingo@800:             selectFeature.deactivate();
ingo@800:         }
ingo@800:     }
ingo@800: 
ingo@800: 
ingo@802:     protected void activateMeasureControl(boolean activate) {
ingo@802:         measureControl.activate(activate);
ingo@802:     }
ingo@802: 
ingo@802: 
ingo@800:     protected ImgButton createButton(String img, ClickHandler handler) {
ingo@800:         ImgButton btn = new ImgButton();
ingo@799: 
ingo@799:         String baseUrl = GWT.getHostPageBaseURL();
ingo@800:         btn.setSrc(baseUrl + img);
ingo@800:         btn.setWidth(20);
ingo@800:         btn.setHeight(20);
ingo@800:         btn.setShowDown(false);
ingo@800:         btn.setShowRollOver(false);
ingo@800:         btn.setShowDisabled(false);
ingo@800:         btn.setShowDisabledIcon(true);
ingo@800:         btn.setShowDownIcon(false);
ingo@800:         btn.setShowFocusedIcon(false);
ingo@799: 
ingo@800:         if (handler != null) {
ingo@800:             btn.addClickHandler(handler);
ingo@800:         }
ingo@800: 
ingo@800:         return btn;
ingo@800:     }
ingo@800: 
ingo@800: 
ingo@800:     protected ImgButton createToggleButton(
ingo@800:         String img,
ingo@800:         final EnableDisableCmd cmd
ingo@800:     ) {
ingo@800:         final ImgButton btn = new ImgButton();
ingo@800: 
ingo@800:         String baseUrl = GWT.getHostPageBaseURL();
ingo@800:         btn.setSrc(baseUrl + img);
ingo@800:         btn.setActionType(SelectionType.CHECKBOX);
ingo@800:         btn.setSize(20);
ingo@800:         btn.setShowRollOver(false);
ingo@800:         btn.setSelected(false);
ingo@800:         btn.addClickHandler(new ClickHandler() {
ingo@800:             public void onClick(ClickEvent e) {
ingo@800:                 if (btn.isSelected()) {
ingo@800:                     cmd.enable();
ingo@800:                 }
ingo@800:                 else {
ingo@800:                     cmd.disable();
ingo@800:                 }
ingo@800:             }
ingo@800:         });
ingo@800: 
ingo@800:         return btn;
ingo@800:     }
ingo@800: 
ingo@800: 
ingo@800:     protected ImgButton createMaxExtentControl() {
ingo@800:         ImgButton zoomToMax = createButton(MSG.zoom_all(), new ClickHandler() {
ingo@799:             public void onClick(ClickEvent event) {
ingo@799:                 floodMap.getMap().zoomToMaxExtent();
ingo@799:             }
ingo@799:         });
ingo@799: 
ingo@799:         return zoomToMax;
ingo@799:     }
ingo@799: 
ingo@799: 
ingo@799:     protected ImgButton createZoomBoxControl() {
ingo@799:         zoomBox = new ZoomBox();
ingo@799: 
ingo@800:         EnableDisableCmd cmd = new EnableDisableCmd() {
ingo@800:             public void enable() {
ingo@800:                 activateZoomBox(true);
ingo@800:                 activatePan(false);
ingo@800:                 activateDrawFeature(false);
ingo@800:                 activateSelectFeature(false);
ingo@802:                 activateMeasureControl(false);
ingo@800:             }
ingo@799: 
ingo@800:             public void disable() {
ingo@800:                 activateZoomBox(false);
ingo@799:             }
ingo@800:         };
ingo@799: 
ingo@800:         ImgButton button = createToggleButton(MSG.zoom_in(), cmd);
ingo@800:         Map       map    = getMap();
ingo@799:         map.addControl(zoomBox);
ingo@799: 
ingo@799:         return button;
ingo@799:     }
ingo@799: 
ingo@799: 
ingo@799:     protected ImgButton createZoomOutControl() {
ingo@800:         ImgButton zoomOut = createButton(MSG.zoom_out(), new ClickHandler() {
ingo@799:             public void onClick(ClickEvent event) {
ingo@799:                 Map map   = floodMap.getMap();
ingo@799:                 int level = map.getZoom();
ingo@799: 
ingo@799:                 if (level > 1) {
ingo@799:                     map.zoomTo(level-1);
ingo@799:                 }
ingo@799:             }
ingo@799:         });
ingo@799: 
ingo@799:         return zoomOut;
ingo@799:     }
ingo@799: 
ingo@799: 
ingo@799:     protected ImgButton createPanControl() {
ingo@799:         pan = new DragPan();
ingo@800:         getMap().addControl(pan);
ingo@799: 
ingo@800:         EnableDisableCmd cmd = new EnableDisableCmd() {
ingo@800:             public void enable() {
ingo@800:                 activateZoomBox(false);
ingo@800:                 activatePan(true);
ingo@800:                 activateDrawFeature(false);
ingo@800:                 activateSelectFeature(false);
ingo@802:                 activateMeasureControl(false);
ingo@800:             }
ingo@799: 
ingo@800:             public void disable() {
ingo@800:                 activatePan(false);
ingo@800:             }
ingo@800:         };
ingo@800: 
ingo@800:         final ImgButton button = createToggleButton(MSG.pan(), cmd);
ingo@800: 
ingo@800:         return button;
ingo@800:     }
ingo@800: 
ingo@800: 
ingo@800:     protected DrawControl createDrawControl() {
ingo@800:         EnableDisableCmd cmd = new EnableDisableCmd() {
ingo@800:             public void enable() {
ingo@800:                 activateZoomBox(false);
ingo@800:                 activatePan(false);
ingo@800:                 activateDrawFeature(true);
ingo@800:                 activateSelectFeature(false);
ingo@802:                 activateMeasureControl(false);
ingo@800:             }
ingo@800: 
ingo@800:             public void disable() {
ingo@800:                 activateDrawFeature(false);
ingo@800:             }
ingo@800:         };
ingo@800:         return new DrawControl(getMap(), floodMap.getBarrierLayer(), cmd);
ingo@800:     }
ingo@800: 
ingo@800: 
ingo@800:     protected ImgButton createSelectFeatureControl() {
ingo@800:         SelectFeatureOptions opts = new SelectFeatureOptions();
ingo@800: 
ingo@800:         // VectorFeatures selected by the SelectFeature control are manually
ingo@800:         // marked with the string "mark.delete". The control to remove selected
ingo@800:         // features makes use of this string to determine if the feature should
ingo@800:         // be deleted (is marked) or not. Actually, we would like to use the
ingo@800:         // OpenLayers native mechanism to select features, but for some reason
ingo@800:         // this doesn't work here. After a feature has been selected, the layer
ingo@800:         // still has no selected features.
ingo@800:         opts.onSelect(new SelectFeature.SelectFeatureListener() {
ingo@800:             public void onFeatureSelected(VectorFeature feature) {
ingo@800:                 Attributes attr = feature.getAttributes();
ingo@800:                 attr.setAttribute(MARK_TO_DELETE, 1);
ingo@800:             }
ingo@800:         });
ingo@800: 
ingo@800:         opts.onUnSelect(new SelectFeature.UnselectFeatureListener() {
ingo@800:             public void onFeatureUnselected(VectorFeature feature) {
ingo@800:                 Attributes attr = feature.getAttributes();
ingo@800:                 attr.setAttribute(MARK_TO_DELETE, 0);
ingo@800:             }
ingo@800:         });
ingo@800: 
ingo@800:         selectFeature = new SelectFeature(floodMap.getBarrierLayer(), opts);
ingo@800:         getMap().addControl(selectFeature);
ingo@800: 
ingo@800:         EnableDisableCmd cmd = new EnableDisableCmd() {
ingo@800:             public void enable() {
ingo@800:                 activateDrawFeature(false);
ingo@800:                 activatePan(false);
ingo@800:                 activateZoomBox(false);
ingo@800:                 activateSelectFeature(true);
ingo@802:                 activateMeasureControl(false);
ingo@800:             }
ingo@800: 
ingo@800:             public void disable() {
ingo@800:                 activateSelectFeature(false);
ingo@800:             }
ingo@800:         };
ingo@800: 
ingo@800:         ImgButton button = createToggleButton(MSG.selectFeature(), cmd);
ingo@800: 
ingo@800:         return button;
ingo@800:     }
ingo@800: 
ingo@800: 
ingo@800:     protected ImgButton createRemoveFeatureControl() {
ingo@800:         ImgButton remove = createButton(MSG.removeFeature(),new ClickHandler() {
ingo@800:             public void onClick(ClickEvent event) {
ingo@800:                 Vector          barriers = floodMap.getBarrierLayer();
ingo@800:                 VectorFeature[] features = barriers.getFeatures();
ingo@800: 
ingo@800:                 if (features == null || features.length == 0) {
ingo@800:                     return;
ingo@799:                 }
ingo@800: 
ingo@800:                 for (int i = features.length-1; i >= 0; i--) {
ingo@800:                     VectorFeature feature = features[i];
ingo@800: 
ingo@800:                     Attributes attr = feature.getAttributes();
ingo@800:                     int        del  = attr.getAttributeAsInt(MARK_TO_DELETE);
ingo@800: 
ingo@800:                     if (del == 1) {
ingo@800:                         barriers.removeFeature(feature);
ingo@800:                         feature.destroy();
ingo@800:                     }
ingo@799:                 }
ingo@799:             }
ingo@799:         });
ingo@799: 
ingo@800:         return remove;
ingo@800:     }
ingo@799: 
ingo@800: 
ingo@800:     protected Canvas createMousePosition(Canvas mapWrapper) {
ingo@800:         return new MapPositionPanel(floodMap.getMapWidget(), mapWrapper);
ingo@799:     }
ingo@802: 
ingo@802: 
ingo@802:     protected MeasureControl createMeasureControl() {
ingo@802:         EnableDisableCmd cmd = new EnableDisableCmd() {
ingo@802:             public void enable() {
ingo@802:                 activateDrawFeature(false);
ingo@802:                 activatePan(false);
ingo@802:                 activateZoomBox(false);
ingo@802:                 activateSelectFeature(false);
ingo@802:             }
ingo@802: 
ingo@802:             public void disable() {
ingo@802:                 // do nothing
ingo@802:             }
ingo@802:         };
ingo@802: 
ingo@802:         return new MeasureControl(floodMap, cmd);
ingo@802:     }
ingo@799: }
ingo@799: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :