Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/client/widgets/KMSpinner.java @ 4003:4d74a579c5c5
Add missing import of FLYSConstants
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Mon, 01 Oct 2012 14:51:25 +0200 |
parents | 4aa7216b329a |
children |
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package de.intevation.flys.client.client.widgets; import com.google.gwt.core.client.GWT; import com.google.gwt.i18n.client.NumberFormat; import com.smartgwt.client.data.Record; import com.smartgwt.client.widgets.Button; import com.smartgwt.client.widgets.Label; import com.smartgwt.client.widgets.events.ClickEvent; import com.smartgwt.client.widgets.form.DynamicForm; import com.smartgwt.client.widgets.form.FormItemValueFormatter; import com.smartgwt.client.widgets.form.FormItemValueParser; import com.smartgwt.client.widgets.form.fields.FormItem; import com.smartgwt.client.widgets.form.fields.TextItem; import com.smartgwt.client.widgets.form.fields.events.BlurEvent; import com.smartgwt.client.widgets.form.fields.events.BlurHandler; import com.smartgwt.client.widgets.form.fields.events.KeyPressEvent; import com.smartgwt.client.widgets.form.fields.events.KeyPressHandler; import com.smartgwt.client.widgets.layout.HLayout; import de.intevation.flys.client.shared.model.FacetRecord; import java.util.ArrayList; import java.util.List; /** * SpinnerItem-like element with text label and up/down buttons. */ public class KMSpinner extends HLayout { protected List<KMSpinnerChangeListener> listeners = new ArrayList<KMSpinnerChangeListener>(); protected Label label; protected FacetRecord facetRecord; protected double value; public KMSpinner(double initialValue, FacetRecord facetRecord) { super(2); this.facetRecord = facetRecord; this.value = initialValue; setWidth("99%"); setHeight(18); // minusButton shall ask service for previous available cs. Button minusButton = new Button("-"); minusButton.setWidth(18); minusButton.setHeight(18); minusButton.addClickHandler(new com.smartgwt.client.widgets.events.ClickHandler() { public void onClick(ClickEvent evt) { fireChangedEvent(value - 0.1d, false); } }); DynamicForm form = new DynamicForm(); final TextItem kmField = new TextItem(); kmField.setValue(initialValue); kmField.setWidth("*"); kmField.setTitle(""); kmField.setHeight(16); FormItemValueFormatter doubleFormat = new FormItemValueFormatter() { public String formatValue(Object value, Record record, DynamicForm form, FormItem item) { if (value != null) { NumberFormat nf = NumberFormat.getDecimalFormat(); try { double d = Double.valueOf(value.toString()).doubleValue(); return nf.format(d); } catch (Exception e) { GWT.log("EditorValueFormatter exception: " + e.toString()); // Remove junk chars from input string return doublefyString(value.toString()); } } else { return null; } } }; kmField.setEditorValueFormatter(doubleFormat); FormItemValueParser doubleParser = new FormItemValueParser() { public Object parseValue(String value, DynamicForm form, FormItem item) { if (value == null) return null; try { NumberFormat nf = NumberFormat.getDecimalFormat(); double d = nf.parse(value.toString()); return Double.toString(d); } catch(NumberFormatException nfe) { return value; } } }; kmField.setEditorValueParser(doubleParser); // Update on focus lost and enter-pressed. kmField.addBlurHandler(new BlurHandler() { @Override public void onBlur(BlurEvent be) { if (kmField.getValue() != null) { try { fireChangedEvent(Double.parseDouble(kmField.getValue().toString()), true); } catch(NumberFormatException nfe) { GWT.log("entered string cannot be parsed to double."); } } } }); kmField.addKeyPressHandler(new KeyPressHandler() { @Override public void onKeyPress(KeyPressEvent kpe) { if (kpe.getKeyName().equals("Enter")) { kmField.blurItem(); } } }); // TODO: i18n Now add all the validators, formatters, editors/parsers etc. form.setFields(kmField); form.setTitle(""); form.setTitlePrefix(""); form.setTitleSuffix(""); form.setTitleWidth(0); form.setWidth(50); form.setHeight(18); // PlusButton shall ask service for next available cs. Button plusButton = new Button("+"); plusButton.setWidth(18); plusButton.setHeight(18); plusButton.addClickHandler(new com.smartgwt.client.widgets.events.ClickHandler() { public void onClick(ClickEvent evt) { fireChangedEvent(value + 0.1d, true); } }); this.addMember(minusButton); this.addMember(form); this.addMember(plusButton); } public void addChangeListener(KMSpinnerChangeListener listener) { this.listeners.add(listener); } protected void fireChangedEvent(double val, boolean up) { for(KMSpinnerChangeListener listener : listeners) { listener.spinnerValueEntered(this, val, facetRecord, up); } } /** * Remove junk chars from double string. * This method should work for most locales, but not for * exotic ones that do not use "." or "," as decimal * separator. * @return */ protected String doublefyString(String str) { StringBuilder buf = new StringBuilder(str.length()); for (int n = 0; n < str.length(); n++) { char c = str.charAt(n); if ((c >= '0' && c <= '9') || c == '.' || c == ',') { buf.append(c); } } return buf.toString(); } }