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Groovy example source code file (BevelBorderFactory.groovy)

This example Groovy source code file (BevelBorderFactory.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

awt, bevelborderfactory, bevelborderfactory, color, color, gui, map, map, object, object, runtimeexception, swing, swingborderfactory

The Groovy BevelBorderFactory.groovy source code

/*
 * Copyright 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.awt.Color
import javax.swing.BorderFactory

/**
 * accepts no value
 * accepts attributes:<br />
 * none <br />
 * highlight: java.awt.Color, shadow: java.awt.Color<br />
 * highlightOuter: java.awt.Color, highlightInner: java.awt.Color, shadowOuter: java.awt.Color, shadowInner: java.awt.Color<br />
 *
 */
class BevelBorderFactory extends SwingBorderFactory {

    final int type;

    public BevelBorderFactory(int newType) {
        type = newType;
    }

    public Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) {
        builder.context.applyBorderToParent = attributes.remove('parent')

        // no if-else-if chain so that we can have one attribute failure block
        if (attributes.containsKey("highlight")) {
            Color highlight = attributes.remove("highlight")
            Color shadow = attributes.remove("shadow")
            if (highlight && shadow && !attributes) {
                return BorderFactory.createBevelBorder(type, highlight, shadow);
            }
        }
        if (attributes.containsKey("highlightOuter")) {
            Color highlightOuter = attributes.remove("highlightOuter")
            Color highlightInner = attributes.remove("highlightInner")
            Color shadowOuter = attributes.remove("shadowOuter")
            Color shadowInner = attributes.remove("shadowInner")
            if (highlightOuter && highlightInner && shadowOuter && shadowInner && !attributes) {
                return BorderFactory.createBevelBorder(type, highlightOuter, highlightInner, shadowOuter, shadowInner);
            }
        }
        if (attributes) {
            throw new RuntimeException("$name only accepts no attributes, or highlight: and shadow: attributes, or highlightOuter: and highlightInner: and shadowOuter: and shadowInner: attributes")
        }
        return BorderFactory.createBevelBorder(type);
    }
}

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