raimund@1534: package de.intevation.flys.client.client.ui;
raimund@1534: 
raimund@1534: import java.util.ArrayList;
raimund@1534: import java.util.List;
raimund@1536: import java.util.Map;
raimund@1534: 
raimund@1534: import com.google.gwt.core.client.GWT;
raimund@1534: 
raimund@1534: import com.smartgwt.client.widgets.form.DynamicForm;
raimund@1534: import com.smartgwt.client.widgets.form.fields.TextItem;
raimund@1534: import com.smartgwt.client.widgets.form.fields.events.ChangedEvent;
raimund@1534: import com.smartgwt.client.widgets.form.fields.events.ChangedHandler;
raimund@1534: import com.smartgwt.client.widgets.form.fields.events.KeyUpEvent;
raimund@1534: import com.smartgwt.client.widgets.form.fields.events.KeyUpHandler;
raimund@1534: import com.smartgwt.client.widgets.layout.HLayout;
raimund@1534: 
raimund@1534: import de.intevation.flys.client.client.event.FilterHandler;
raimund@1534: import de.intevation.flys.client.client.event.RangeFilterEvent;
raimund@1534: import de.intevation.flys.client.client.FLYSConstants;
raimund@1536: import de.intevation.flys.client.client.utils.DoubleValidator;
raimund@1534: 
raimund@1534: /**
raimund@1534:  * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
raimund@1534:  */
raimund@1534: public class RangeTableFilter
raimund@1534: extends      HLayout
raimund@1534: implements   ChangedHandler, KeyUpHandler
raimund@1534: {
raimund@1534:     /** The message class that provides i18n strings. */
raimund@1534:     protected FLYSConstants MESSAGES = GWT.create(FLYSConstants.class);
raimund@1534: 
raimund@1534:     protected List<FilterHandler> handlers;
raimund@1534: 
raimund@1534:     protected TextItem fromField;
raimund@1534:     protected TextItem toField;
raimund@1536:     protected DynamicForm filterForm;
raimund@1534: 
raimund@1534:     public RangeTableFilter() {
raimund@1534:         super();
raimund@1534:         fromField = new TextItem();
raimund@1534:         fromField.setTitle(MESSAGES.from());
raimund@1534:         fromField.setWidth(60);
raimund@1534:         toField = new TextItem();
raimund@1534:         toField.setTitle(MESSAGES.to());
raimund@1534:         toField.setWidth(60);
raimund@1534: 
raimund@1534: 
raimund@1534:         handlers    = new ArrayList<FilterHandler>();
raimund@1534: 
raimund@1534:         fromField.addChangedHandler(this);
raimund@1534:         fromField.addKeyUpHandler(this);
raimund@1534:         toField.addChangedHandler(this);
raimund@1534:         toField.addKeyUpHandler(this);
raimund@1534: 
raimund@1536:         filterForm = new DynamicForm();
raimund@1536:         filterForm.setNumCols(4);
raimund@1536:         filterForm.setFields(fromField, toField);
raimund@1534: 
raimund@1536:         addMember(filterForm);
raimund@1534:     }
raimund@1534: 
raimund@1534: 
raimund@1534:     public void onChanged(ChangedEvent event) {
raimund@1534:         // This event handler is to slow...
raimund@1534: //        fireFilterCriteriaChanged(getSearchString());
raimund@1534:     }
raimund@1534: 
raimund@1534: 
raimund@1534:     public void onKeyUp(KeyUpEvent event) {
raimund@1536:         DoubleValidator validator = new DoubleValidator();
raimund@1536:         Map errors = filterForm.getErrors();
sascha@2905:         if(event.getItem().getValue() != null &&
raimund@1536:            !validator.validate(event.getItem(), errors)) {
raimund@1536:             filterForm.setErrors(errors, true);
raimund@1536:             GWT.log("no valid input!");
raimund@1536:             return;
raimund@1536:         }
raimund@1536:         else {
raimund@1536:             errors.clear();
raimund@1536:             filterForm.setErrors(errors, true);
raimund@1536:         }
raimund@1534:         //To deactivate "As you type" filter add
raimund@1534:         // ' && event.getKeyName().equals("Enter")'
raimund@1534:         // to the if-clause.
raimund@1534:         if (event != null) {
raimund@1534:             fireFilterCriteriaChanged(getFrom(), getTo());
raimund@1534:         }
raimund@1534:     }
raimund@1534: 
raimund@1534: 
raimund@1534:     public String getFrom() {
raimund@1534:         if (fromField.getValueAsString() == null) {
raimund@1534:             return "";
raimund@1534:         }
raimund@1534:         else {
raimund@1534:             return fromField.getValueAsString();
raimund@1534:         }
raimund@1534:     }
raimund@1534: 
raimund@1534: 
raimund@1534:     public String getTo() {
raimund@1534:         if (toField.getValueAsString() == null) {
raimund@1534:             return "";
raimund@1534:         }
raimund@1534:         else {
raimund@1534:             return toField.getValueAsString();
raimund@1534:         }
raimund@1534:     }
raimund@1534: 
raimund@1534: 
raimund@1534:     public void addFilterHandler(FilterHandler handler) {
raimund@1534:         if (handler != null) {
raimund@1534:             handlers.add(handler);
raimund@1534:         }
raimund@1534:     }
raimund@1534: 
raimund@1534: 
raimund@1534:     protected void fireFilterCriteriaChanged(String from, String to) {
raimund@1534:         RangeFilterEvent filter = new RangeFilterEvent(from, to);
raimund@1534: 
raimund@1534:         for (FilterHandler handler: handlers) {
raimund@1534:             handler.onFilterCriteriaChanged(filter);
raimund@1534:         }
raimund@1534:     }
raimund@1534: 
raimund@1534: 
raimund@1534:     public void clear() {
raimund@1534:         fromField.clearValue();
raimund@1534:         toField.clearValue();
raimund@1534:         fireFilterCriteriaChanged("", "");
raimund@1534:     }
raimund@1534: }
raimund@1534: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :