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Groovy example source code file (ColumnFactory.groovy)

This example Groovy source code file (ColumnFactory.groovy) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

classnotfoundexception, columnfactory, found, integer, integer, jtable, log, logging, map, number, object, object, renderer, table, tablecolumn, tablecolumn, tablecolumnmodel, tablecolumnmodel

The Groovy ColumnFactory.groovy source code

/*
 * Copyright 2003-2007 the original author or authors.
 *
 * 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 groovy.swing.factory

import java.util.logging.Logger
import javax.swing.table.TableCellRenderer
import javax.swing.table.TableColumn
import javax.swing.table.TableColumnModel
import groovy.util.logging.Log

/**
 * @author Alexander Klein
 * @author Hamlet D'Arcy
 */
@Log
class ColumnFactory extends AbstractFactory {

	Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) {
		if(value instanceof TableColumn) {
            return value
        }

		TableColumn node
		Class jxTableClass = null
		try {
			jxTableClass = Class.forName("org.jdesktop.swingx.JXTable")
		} catch (ClassNotFoundException ex) {
		}

		if(jxTableClass != null && builder.current instanceof TableColumnModel) {
			node = Class.forName("org.jdesktop.swingx.table.TableColumnExt").newInstance()
		} else {
            node = new javax.swing.table.TableColumn()
        }

		if(value != null) {
  		    node.identifier = value.toString()
            attributes.remove('identifier')
        }

		if(attributes.width) {
			if(attributes.width instanceof Collection) {
				// 3 values: min, pref, max
				// 2 values: min, pref
				// 1 value:  pref
				def (min, pref, max) = attributes.width
				if(!pref && !max) {
					node.minWidth = 0
                    node.preferredWidth = min as Integer
                    node.maxWidth = Integer.MAX_VALUE
				} else {
                  if(min) {
                      node.minWidth = min as Integer
                  }
                  if(pref) {
                      node.preferredWidth = pref as Integer
                  }
                  if(max) {
                      node.maxWidth = max as Integer
                  }
                }
			} else if(attributes.width instanceof Number) {
				node.minWidth = attributes.width.intValue()
				node.preferredWidth = attributes.width.intValue()
				node.maxWidth = attributes.width.intValue()
			}
			attributes.remove('width')
		}
		return node
	}

    void onNodeCompleted(FactoryBuilderSupport builder, Object parent, Object node) {
        if (!(parent instanceof TableColumnModel)) {
            log.warning("Column must be a child of a columnModel. Found " + parent.getClass())
        }
        parent.addColumn(node)
    }

    void setChild(FactoryBuilderSupport builder, Object parent, Object child) {
        if (!(parent instanceof TableColumn)) {
            log.warning("Renderer must be a child of a tableColumn. Found " + parent.getClass())
        }
        if (child instanceof TableCellRenderer) {
            switch (builder.getCurrentName()) {
                case "headerRenderer":
                    child.tableHeader = true
                    parent.headerRenderer = child
                    break;
                case "cellRenderer":
                    child.tableHeader = false
                    parent.cellRenderer = child
                    break;
            }
        }
    }
}

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