/*
* Copyright (c) 2004-2007 by Michael Connor. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* o Neither the name of FormLayoutBuilder or Michael Connor nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.mlc.swing.layout;
import java.awt.Component;
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.swing.JPanel;
/**
* This is meant to be subclassed when you want to create a ComponentBuilder
* that has simplistic behavior.
*
* @author Michael Connor mlconnor@yahoo.com
@version $Id$
@since Ptolemy II 7.1
*/
public class DefaultComponentBuilder implements ComponentBuilder {
Class clazz;
BeanInfo beanInfo;
List<PropertyDescriptor> editableProperties = new ArrayList<PropertyDescriptor>();
Map<String, PropertyDescriptor> nameToDescriptor = new HashMap<String, PropertyDescriptor>();
List<BeanProperty> properties = new ArrayList<BeanProperty>();
/** Creates a new instance of DefaultComponentFactory */
public DefaultComponentBuilder(Class clazz) throws IntrospectionException {
this(clazz, null);
}
/** Creates a new instance of DefaultComponentFactory */
public DefaultComponentBuilder(Class clazz, String[] properties)
throws IntrospectionException {
this.clazz = clazz;
beanInfo = Introspector.getBeanInfo(clazz);
PropertyDescriptor[] propertyDescriptors = beanInfo
.getPropertyDescriptors();
if (properties != null) {
for (int i = 0; i < properties.length; i++) {
String propertyName = properties[i];
PropertyDescriptor propertyDescriptor = null;
for (int index = 0; index < propertyDescriptors.length; index++) {
PropertyDescriptor thisDescriptor = propertyDescriptors[index];
if (thisDescriptor.getName().equals(propertyName)) {
propertyDescriptor = thisDescriptor;
break;
}
}
if (propertyDescriptor == null) {
throw new RuntimeException("Could not find property '"
+ propertyName + "' in class " + clazz.getName());
} else {
this.properties.add(new BeanProperty(propertyDescriptor
.getName(), propertyDescriptor.getPropertyType()));
nameToDescriptor.put(propertyDescriptor.getName(),
propertyDescriptor);
}
}
}
}
public String getDeclaration(String name, Map<String, Object> beanProperties) {
StringBuffer buffer = new StringBuffer();
buffer.append(clazz.getName() + " " + name + " = new "
+ clazz.getName() + "(");
if (beanProperties.containsKey("text")) {
buffer.append("\"" + (String) beanProperties.get("text") + "\"");
}
buffer.append(");\n");
return buffer.toString();
}
public ComponentDef getComponentDef(String name,
Map<String, Object> beanProperties) {
// imports
// declarations
// add
String imp = "import " + clazz.getName() + ";";
// does not work with JDK 1.4
// String decl = clazz.getSimpleName() + " ${name}= new " + clazz.getSimpleName() + "(";
String decl = clazz.getName() + " ${name}= new " + clazz.getName()
+ "(";
if (beanProperties.containsKey("text")) {
decl += "\"" + (String) beanProperties.get("text") + "\"";
}
decl += ");";
// String decl = getDeclaration(name, beanProperties);
String add = "${container}.add(${name}, \"${name}\");";
ComponentDef cd = new ComponentDef(name, imp, decl, add);
return cd;
}
public java.awt.Component getInstance(
java.util.Map<String, Object> objectProperties)
throws InstantiationException, IllegalAccessException,
InvocationTargetException {
Object instance = clazz.newInstance();
for (Iterator i = objectProperties.keySet().iterator(); i.hasNext();) {
String key = (String) i.next();
PropertyDescriptor propertyDescriptor = nameToDescriptor.get(key);
Object value = objectProperties.get(key);
Method writeMethod = propertyDescriptor.getWriteMethod();
writeMethod.invoke(instance, new Object[] { value });
}
return (Component) instance;
}
public boolean isComponentALayoutContainer() {
return clazz.equals(JPanel.class);
}
public String toString() {
return clazz.getName();
}
public List<BeanProperty> getProperties() {
return properties;
}
}