Mercurial > dive4elements > river
diff gwt-client/src/main/java/org/dive4elements/river/client/client/widgets/KMSpinner.java @ 5838:5aa05a7a34b7
Rename modules to more fitting names.
author | Sascha L. Teichmann <teichmann@intevation.de> |
---|---|
date | Thu, 25 Apr 2013 15:23:37 +0200 |
parents | flys-client/src/main/java/org/dive4elements/river/client/client/widgets/KMSpinner.java@821a02bbfb4e |
children | 172338b1407f |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gwt-client/src/main/java/org/dive4elements/river/client/client/widgets/KMSpinner.java Thu Apr 25 15:23:37 2013 +0200 @@ -0,0 +1,176 @@ +package org.dive4elements.river.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 org.dive4elements.river.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(); + } +} +