Java tutorial
/* * Copyright 2011 JBoss Inc * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.jbpm.formbuilder.client.form.items; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import org.jbpm.formapi.client.FormBuilderException; import org.jbpm.formapi.client.effect.FBFormEffect; import org.jbpm.formapi.client.form.FBFormItem; import org.jbpm.formapi.client.form.FBInplaceEditor; import org.jbpm.formapi.client.form.I18NFormItem; import org.jbpm.formapi.shared.api.FormItemRepresentation; import org.jbpm.formapi.shared.api.items.LabelRepresentation; import org.jbpm.formbuilder.client.FormBuilderGlobals; import org.jbpm.formbuilder.client.form.I18NUtils; import org.jbpm.formbuilder.client.form.editors.LabelInplaceEditor; import org.jbpm.formbuilder.client.messages.I18NConstants; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.Widget; import com.gwtent.reflection.client.Reflectable; /** * UI form item. Represents a label */ @Reflectable public class LabelFormItem extends FBFormItem implements I18NFormItem { private final Label label = new Label("Label"); private final I18NConstants i18n = FormBuilderGlobals.getInstance().getI18n(); private final I18NUtils utils = new I18NUtils(); private String id; private String cssClassName; public LabelFormItem() { this(new ArrayList<FBFormEffect>()); } public LabelFormItem(List<FBFormEffect> formEffects) { super(formEffects); setWidth("200px"); add(getLabel()); } @Override public Map<String, Object> getFormItemPropertiesMap() { Map<String, Object> formItemPropertiesMap = new HashMap<String, Object>(); formItemPropertiesMap.put("id", id); formItemPropertiesMap.put("width", getWidth()); formItemPropertiesMap.put("height", getHeight()); formItemPropertiesMap.put("cssClassName", cssClassName); return formItemPropertiesMap; } @Override public FBInplaceEditor createInplaceEditor() { return new LabelInplaceEditor(this); } @Override public void saveValues(Map<String, Object> propertiesMap) { this.id = extractString(propertiesMap.get("id")); this.setWidth(extractString(propertiesMap.get("width"))); this.setHeight(extractString(propertiesMap.get("height"))); this.cssClassName = extractString(propertiesMap.get("cssClassName")); populate(getLabel()); } private void populate(Label label) { if (this.getWidth() != null) { label.setWidth(this.getWidth()); } if (this.getHeight() != null) { label.setHeight(this.getHeight()); } if (this.cssClassName != null) { label.setStyleName(this.cssClassName); } } public Label getLabel() { return this.label; } @Override public void addEffect(FBFormEffect effect) { super.addEffect(effect); effect.setWidget(this.label); } @Override public FormItemRepresentation getRepresentation() { LabelRepresentation rep = super.getRepresentation(new LabelRepresentation()); rep.setValue(this.label.getText()); rep.setCssName(this.cssClassName); rep.setId(this.id); rep.setI18n(getI18nMap()); rep.setFormat(getFormat() == null ? null : getFormat().toString()); return rep; } @Override public void populate(FormItemRepresentation rep) throws FormBuilderException { if (!(rep instanceof LabelRepresentation)) { throw new FormBuilderException(i18n.RepNotOfType(rep.getClass().getName(), "LabelRepresentation")); } super.populate(rep); LabelRepresentation lrep = (LabelRepresentation) rep; this.label.setText(lrep.getValue()); this.cssClassName = lrep.getCssName(); this.id = lrep.getId(); if (lrep.getWidth() != null && !"".equals(lrep.getWidth())) { setWidth(lrep.getWidth()); } if (lrep.getHeight() != null && !"".equals(lrep.getHeight())) { setHeight(lrep.getHeight()); } saveI18nMap(lrep.getI18n()); if (lrep.getFormat() != null && !"".equals(lrep.getFormat())) { setFormat(Format.valueOf(lrep.getFormat())); } populate(this.label); } @Override public FBFormItem cloneItem() { LabelFormItem clone = new LabelFormItem(getFormEffects()); clone.cssClassName = this.cssClassName; clone.setHeight(this.getHeight()); clone.id = this.id; clone.setWidth(this.getWidth()); clone.getLabel().setText(this.label.getText()); clone.populate(clone.label); clone.saveI18nMap(getI18nMap()); clone.setFormat(getFormat()); return clone; } @Override public Widget cloneDisplay(Map<String, Object> data) { Label lb = new Label(); populate(lb); String value = (String) getInputValue(data); if (value != null) { lb.setText(value); } else { String locale = (String) data.get(FormBuilderGlobals.BASE_LOCALE); lb.setText(this.label.getText()); if (locale != null) { String i18nText = getI18n(locale); if (i18nText != null && !"".equals(i18nText)) { lb.setText(i18nText); } } } super.populateActions(lb.getElement()); return lb; } @Override public boolean containsLocale(String localeName) { return utils.containsLocale(localeName); } @Override public String getI18n(String key) { return utils.getI18n(key); } @Override public Map<String, String> getI18nMap() { return utils.getI18nMap(); } @Override public void saveI18nMap(Map<String, String> i18nMap) { if (i18nMap != null) { String defaultI18n = i18nMap.get("default"); if (defaultI18n != null && !"".equals(defaultI18n)) { this.label.setText(defaultI18n); } utils.saveI18nMap(i18nMap); } } @Override public Format getFormat() { return utils.getFormat(); } @Override public void setFormat(Format format) { utils.setFormat(format); } }