Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/client/ui/minfo/SedLoadDistancePanel.java @ 4254:33b15ac17fd1
Only create and add GaugePanel when necessary
The GaugePanel isn't created always and only show if WINFO and a river is
selected now. It is only created on demand. Therefore all access to the
GaugePanel is abstraced via methods that check if the GaugePanel is null before
accessing it's methods.
author | Björn Ricks <bjoern.ricks@intevation.de> |
---|---|
date | Thu, 25 Oct 2012 13:58:53 +0200 |
parents | 015b219a97af |
children | 651b93c10dc5 |
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package de.intevation.flys.client.client.ui.minfo; import java.util.List; import com.google.gwt.core.client.GWT; import com.smartgwt.client.data.Record; import com.smartgwt.client.util.SC; import com.smartgwt.client.widgets.Canvas; import com.smartgwt.client.widgets.Label; import com.smartgwt.client.widgets.form.fields.events.BlurEvent; import com.smartgwt.client.widgets.form.fields.events.BlurHandler; import com.smartgwt.client.widgets.grid.events.CellClickEvent; import com.smartgwt.client.widgets.grid.events.CellClickHandler; import com.smartgwt.client.widgets.layout.HLayout; import com.smartgwt.client.widgets.layout.VLayout; import de.intevation.flys.client.client.Config; import de.intevation.flys.client.client.event.FilterHandler; import de.intevation.flys.client.client.event.RangeFilterEvent; import de.intevation.flys.client.client.event.StringFilterEvent; import de.intevation.flys.client.client.ui.AbstractUIProvider; import de.intevation.flys.client.client.ui.DoubleRangeOnlyPanel; import de.intevation.flys.client.client.ui.DoubleRangePanel; import de.intevation.flys.client.client.ui.LocationPicker; import de.intevation.flys.client.client.ui.range.DistanceInfoDataSource; import de.intevation.flys.client.shared.model.ArtifactDescription; import de.intevation.flys.client.shared.model.Data; import de.intevation.flys.client.shared.model.DataItem; import de.intevation.flys.client.shared.model.DataList; import de.intevation.flys.client.shared.model.DefaultData; import de.intevation.flys.client.shared.model.DefaultDataItem; public class SedLoadDistancePanel extends AbstractUIProvider implements BlurHandler, CellClickHandler { public static final String FIELD_LOWER = "ld_from"; public static final String FIELD_UPPER = "ld_to"; protected DoubleRangePanel distancePanel; protected double min; protected double max; protected LocationPicker picker; @Override public Canvas createOld(DataList dataList) { String s = getOldSelectionString(dataList); String l = dataList.getLabel(); Label label = new Label(l); Label selected = new Label(s); HLayout layout = new HLayout(); layout.setWidth(400); label.setWidth(200); selected.setWidth(130); layout.addMember(label); layout.addMember(selected); layout.addMember(getBackButton(dataList.getState())); return layout; } protected String getOldSelectionString(DataList dataList) { List<Data> items = dataList.getAll(); Data dFrom = getData(items, FIELD_LOWER); Data dTo = getData(items, FIELD_UPPER); DataItem[] from = dFrom.getItems(); DataItem[] to = dTo.getItems(); StringBuilder sb = new StringBuilder(); sb.append(from[0].getLabel()); sb.append(" " + MSG.dpUnitFrom() + " - "); sb.append(to[0].getLabel()); sb.append(" " + MSG.dpUnitTo()); return sb.toString(); } @Override public Canvas create(DataList data) { picker = new LocationPicker(this); distancePanel = new DoubleRangeOnlyPanel( MSG.dpUnitFrom() + " - ", MSG.dpUnitTo(), 0d, 0d, 250, this, "right"); VLayout layout = new VLayout(); layout.setMembersMargin(10); Label label = new Label(MSG.distance_state()); Canvas submit = getNextButton(); label.setHeight(25); distancePanel.setHeight(50); layout.addMember(label); layout.addMember(distancePanel); layout.addMember(submit); initMinMaxValues(data); initDefaultValues(data); picker.setIsDistance(true); picker.getLocationTable().setAutoFetchData(true); picker.prepareFilter(); helperContainer.addMember(picker.getLocationTable()); helperContainer.addMember(picker.getFilterLayout()); helperContainer.addMember(picker.getResultCountForm()); setPickerDataSource(); picker.createLocationTable(); return layout; } protected void initMinMaxValues(DataList data) { Data f = getData(data.getAll(), FIELD_LOWER); Data t = getData(data.getAll(), FIELD_UPPER); DataItem[] fItems = f.getItems(); DataItem[] tItems = t.getItems(); try { min = Double.valueOf(fItems[0].getStringValue()); max = Double.valueOf(tItems[0].getStringValue()); } catch (NumberFormatException nfe) { min = -Double.MAX_VALUE; max = Double.MAX_VALUE; } } protected void initDefaultValues(DataList data) { initDefaultFrom(data); initDefaultTo(data); } protected void initDefaultFrom(DataList data) { Data f = getData(data.getAll(), FIELD_LOWER); double from = getDefaultFrom(); try { from = getDefaultValue(f); } catch (NumberFormatException nfe) { // do nothing } distancePanel.setFrom(from); } protected double getDefaultFrom() { return min; } protected void initDefaultTo(DataList data) { Data t = getData(data.getAll(), FIELD_UPPER); double to = getDefaultTo(); try { to = getDefaultValue(t); } catch (NumberFormatException nfe) { // do nothing } distancePanel.setTo(to); } protected double getDefaultTo() { return max; } protected double getDefaultValue(Data data) throws NumberFormatException { DataItem def = data.getDefault(); String defValue = def != null ? def.getStringValue() : null; return Double.valueOf(defValue); } /** Hook service to the listgrid with possible input values. */ protected void setPickerDataSource() { Config config = Config.getInstance(); String url = config.getServerUrl(); String river = ""; ArtifactDescription adescr = artifact.getArtifactDescription(); DataList[] data = adescr.getOldData(); // Try to find a "river" data item to set the source for the // list grid. String dataFilter = "locations"; if (data != null && data.length > 0) { for (int i = 0; i < data.length; i++) { DataList dl = data[i]; if (dl.getState().equals("state.minfo.river")) { dataFilter = "measuringpoint"; } if (dl.getState().equals("state.winfo.river") || dl.getState().equals("state.chart.river") || dl.getState().equals("state.minfo.river")) { for (int j = 0; j < dl.size(); j++) { Data d = dl.get(j); DataItem[] di = d.getItems(); if (di != null && di.length == 1) { river = d.getItems()[0].getStringValue(); break; } } } } } picker.getLocationTable().setDataSource(new DistanceInfoDataSource( url, river, dataFilter)); } @Override protected Data[] getData() { Data[] data = new Data[2]; data[0] = getDataFrom(); data[1] = getDataTo(); return data; } protected Data getDataFrom() { String value = String.valueOf(distancePanel.getFrom()); String field = FIELD_LOWER; DataItem item = new DefaultDataItem(field, field, value); return new DefaultData( field, null, null, new DataItem[] { item }); } protected Data getDataTo() { String value = String.valueOf(distancePanel.getTo()); String field = FIELD_UPPER; DataItem item = new DefaultDataItem(field, field, value); return new DefaultData( field, null, null, new DataItem[] { item }); } @Override public void onBlur(BlurEvent event) { distancePanel.validateForm(); } @Override public void onCellClick(CellClickEvent e) { Record record = e.getRecord(); int ndx = e.getColNum(); String from = record.getAttribute("from"); try { double value = Double.valueOf(from); switch (ndx) { case 0: distancePanel.setFrom(value); break; case 1: distancePanel.setTo(value); break; } } catch(NumberFormatException nfe) { SC.warn(MSG.wrongFormat()); } } }