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/*******************************************************************************
* Copyright (c) 2011 Google, Inc.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Google, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.wb.internal.core.model.property.editor;
import org.eclipse.wb.core.controls.CCombo3;
import org.eclipse.wb.internal.core.model.property.Property;
import org.eclipse.wb.internal.core.utils.check.Assert;
import java.util.List;
import java.util.Map;
/**
* The {@link PropertyEditor} for selecting single expression from given set.
*
* @author sablin_aa
* @coverage core.model.property.editor
*/
public abstract class AbstractListPropertyEditor extends AbstractComboPropertyEditor
implements
IValueSourcePropertyEditor {
////////////////////////////////////////////////////////////////////////////
//
// TextDisplayPropertyEditor
//
////////////////////////////////////////////////////////////////////////////
@Override
public String getText(Property property) throws Exception {
// return title for value
Object value = property.getValue();
if (value != Property.UNKNOWN_VALUE) {
int index = getValueIndex(value);
if (index >= 0) {
return getTitle(index);
} else {
if (value instanceof String) {
return (String) value;
}
}
}
// unknown value
return null;
}
////////////////////////////////////////////////////////////////////////////
//
// IValueSourcePropertyEditor
//
////////////////////////////////////////////////////////////////////////////
@Override
public String getValueSource(Object value) throws Exception {
// return expression for value
if (value != Property.UNKNOWN_VALUE) {
int index = getValueIndex(value);
if (index >= 0) {
return getExpression(index);
}
}
// unknown value
return null;
}
// ////////////////////////////////////////////////////////////////////////////
// //
// // IClipboardSourceProvider
// //
// ////////////////////////////////////////////////////////////////////////////
// @Override
//public String getClipboardSource(GenericProperty property) throws Exception {
// Object value = property.getValue();
// return getValueSource(value);
// }
////////////////////////////////////////////////////////////////////////////
//
// Combo
//
////////////////////////////////////////////////////////////////////////////
@Override
protected void addItems(Property property, CCombo3 combo) throws Exception {
for (int i = 0; i < getCount(); i++) {
combo.add(getTitle(i));
}
}
@Override
protected void selectItem(Property property, CCombo3 combo) throws Exception {
combo.setText(getText(property));
}
@Override
protected void toPropertyEx(Property property, CCombo3 combo, int index) throws Exception {
// if (property instanceof GenericProperty) {
// GenericProperty genericProperty = (GenericProperty) property;
// String expression = getExpression(index);
// Object evaluatedExpression = evaluateExpression(genericProperty, expression);
// // apply expression
// genericProperty.setExpression(expression, evaluatedExpression);
// } else {
toPropertyEx_simpleProperty(property, combo, index);
// }
}
// private static Object evaluateExpression(final GenericProperty genericProperty,
// final String expression) {
// return ExecutionUtils.runObjectIgnore(new RunnableObjectEx<Object>() {
// public Object runObject() throws Exception {
// JavaInfo javaInfo = genericProperty.getJavaInfo();
// ClassLoader classLoader = JavaInfoUtils.getClassLoader(javaInfo);
// return ScriptUtils.evaluate(classLoader, expression);
// }
// }, Property.UNKNOWN_VALUE);
// System.out.println("HACK 1234");
// return Property.UNKNOWN_VALUE;
// }
/**
* Sets value of simple {@link Property}, not {@link GenericProperty}.
*/
protected void toPropertyEx_simpleProperty(Property property, CCombo3 combo, int index)
throws Exception {
}
////////////////////////////////////////////////////////////////////////////
//
// Access to list items
//
////////////////////////////////////////////////////////////////////////////
abstract protected int getCount();
abstract protected int getValueIndex(Object value);
abstract protected String getTitle(int index);
abstract protected String getExpression(int index) throws Exception;
////////////////////////////////////////////////////////////////////////////
//
// Utils
//
////////////////////////////////////////////////////////////////////////////
/**
* Extract string array from parameters.
*/
protected static String[] getParameterAsArray(Map<String, Object> parameters, String name) {
return getParameterAsArray(parameters, name, false);
}
@SuppressWarnings("unchecked")
protected static String[] getParameterAsArray(Map<String, Object> parameters,
String name,
boolean noAssert) {
String[] values = null;
if (parameters.containsKey(name)) {
List<String> list = (List<String>) parameters.get(name);
values = list.toArray(new String[list.size()]);
} else {
if (noAssert) {
values = null;
} else {
Assert.fail(String.format("No parameter %s in %s.", name, parameters));
}
}
return values;
}
}
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