Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/client/ui/LocationPanel.java @ 5615:8889d46e7927
Mark layers coming from external WMS as such in datacage
author | Tom Gottfried <tom@intevation.de> |
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date | Tue, 09 Apr 2013 16:52:41 +0200 |
parents | 360e22afb98b |
children |
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package de.intevation.flys.client.client.ui; import com.google.gwt.core.client.GWT; import com.google.gwt.i18n.client.NumberFormat; 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.FormItem; 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.RecordClickEvent; import com.smartgwt.client.widgets.layout.HLayout; import com.smartgwt.client.widgets.layout.VLayout; 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 java.util.ArrayList; import java.util.List; /** * This UIProvider serves as base for UI Providers to enter a single location (km). */ public abstract class LocationPanel extends AbstractUIProvider { private static final long serialVersionUID = -5306604428440015046L; /** A container that will contain the location or the distance panel. */ protected HLayout inputLayout; /** The minimal value that the user is allowed to enter. */ protected double min; /** The maximal value that the user is allowed to enter. */ protected double max; /** The values entered in the location mode. */ protected double[] values; /** Name of the data item that keeps this location(s). */ protected String dataItemName; /** The input panel for locations. */ protected DoubleArrayPanel locationPanel; /** * Creates a new LocationDistancePanel instance. */ public LocationPanel() { values = new double[0]; } /** * This method creates a widget that contains a label, a panel with * checkboxes to switch the input mode between location and distance input, * and a mode specific panel. * * @param data The data that might be inserted. * * @return a panel. */ @Override public Canvas create(DataList data) { findDataItemName(data); VLayout layout = new VLayout(); layout.setMembersMargin(10); // Subclass uses translated data items name as label. Label label = new Label(MSG.location()); Canvas widget = createWidget(data); Canvas submit = getNextButton(); initDefaults(data); widget.setHeight(50); label.setHeight(25); layout.addMember(label); layout.addMember(widget); layout.addMember(submit); return layout; } /** Store label of first data item in list. */ public void findDataItemName(DataList list) { this.dataItemName = list.getAll().get(0).getLabel(); } /** Get label of first data item that this uiprovider has seen. */ public String getDataItemName() { return this.dataItemName; } /** * This method creates a Canvas element showing the old Data objects in the * DataList <i>data</i>. */ @Override public Canvas createOld(DataList dataList) { findDataItemName(dataList); List<Data> items = dataList.getAll(); Data dLocation = getData(items, getDataItemName()); DataItem[] loc = dLocation.getItems(); HLayout layout = new HLayout(); layout.setWidth("400px"); Label label = new Label(dataList.getLabel()); label.setWidth("200px"); Canvas back = getBackButton(dataList.getState()); // TODO evaluate: isn't this what findDataItemName is doing? Label selected = new Label(loc[0].getLabel()); selected.setWidth("130px"); layout.addMember(label); layout.addMember(selected); layout.addMember(back); return layout; } /** * This method reads the default values defined in the DataItems of the Data * objects in <i>list</i>. * * @param list The DataList container that stores the Data objects. */ protected void initDefaults(DataList list) { Data data = list.get(0); DataItem[] items = data.getItems(); DataItem iMin = getDataItem(items, "min"); DataItem iMax = getDataItem(items, "max"); try { min = Double.parseDouble(iMin.getStringValue()); max = Double.parseDouble(iMax.getStringValue()); } catch (NumberFormatException nfe) { SC.warn(MSG.error_read_minmax_values()); min = -Double.MAX_VALUE; max = Double.MAX_VALUE; } DataItem def = data.getDefault(); String value = def.getStringValue(); try { double d = Double.parseDouble(value); setLocationValues(new double[] { d } ); } catch (NumberFormatException nfe) { // could not parse, don't know what else to do GWT.log("LocationPanel", nfe); } } /** * This method grabs the Data with name <i>name</i> from the list and * returns it. * * @param items A list of Data. * @param name The name of the Data that we are searching for. * * @return the Data with the name <i>name</i>. */ @Override protected Data getData(List<Data> data, String name) { for (Data d: data) { if (name.equals(d.getLabel())) { return d; } } return null; } protected Canvas createWidget(DataList data) { VLayout layout = new VLayout(); inputLayout = new HLayout(); // The initial view will display the location input mode. locationPanel = new DoubleArrayPanel( MSG.unitLocation(), getLocationValues(), new BlurHandler(){@Override public void onBlur(BlurEvent be) {}}); // TODO Remove picker references, refactor such that subclasses can // easily use their picker if they want. //picker.getLocationTable().setAutoFetchData(true); inputLayout.addMember(locationPanel); layout.addMember(inputLayout); inputLayout.setMembersMargin(30); /* //picker.prepareFilter(); helperContainer.addMember(picker.getLocationTable()); helperContainer.addMember(picker.getFilterLayout()); helperContainer.addMember(picker.getResultCountForm()); */ return layout; } @Override public List<String> validate() { List<String> errors = new ArrayList<String>(); NumberFormat nf = NumberFormat.getDecimalFormat(); saveLocationValues(locationPanel); if (!locationPanel.validateForm()) { errors.add(MSG.wrongFormat()); return errors; } double[] values = getLocationValues(); double[] good = new double[values.length]; int idx = 0; for (double value: values) { if (value < min || value > max) { String tmp = MSG.error_validate_range(); tmp = tmp.replace("$1", nf.format(value)); tmp = tmp.replace("$2", nf.format(min)); tmp = tmp.replace("$3", nf.format(max)); errors.add(tmp); } else { good[idx++] = value; } } double[] justGood = new double[idx]; for (int i = 0; i < justGood.length; i++) { justGood[i] = good[i]; } if (!errors.isEmpty()) { locationPanel.setValues(justGood); } return errors; } /** * Validates and stores all values entered in the location mode. * * @param p The DoubleArrayPanel. */ protected void saveLocationValues(DoubleArrayPanel p) { FormItem[] formItems = p.getFields(); for (FormItem item: formItems) { if (item.getFieldName().equals(DoubleArrayPanel.FIELD_NAME)) { saveLocationValue(p, item); } } } /** * Validates and stores a value entered in the location mode. * * @param p The DoubleArrayPanel. * @param item The item that needs to be validated. */ protected void saveLocationValue(DoubleArrayPanel p, FormItem item) { if (p.validateForm(item)) { setLocationValues(p.getInputValues(item)); } } /** Get the location values. */ protected double[] getLocationValues() { return values; } /** Sets Location values and updates the panel. */ protected void setLocationValues(double[] values) { this.values = values; locationPanel.setValues(values); } /** * Callback when an item from the input helper was clicked. * Set the respective km-value in the location value field. * @param e event passed. */ public void onRecordClick (RecordClickEvent e) { Record record = e.getRecord(); double[] selected = new double[1]; try { selected[0] = Double.parseDouble(record.getAttribute("from")); } catch(NumberFormatException nfe) { GWT.log("onRecordClick", nfe); } setLocationValues(selected); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :