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Groovy example source code file (BoxFactory.groovy)

This example Groovy source code file (BoxFactory.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

abstractfactory, awt, boxfactory, componentfactory, dimension, gui, hboxfactory, illegalaccessexception, illegalaccessexception, instantiationexception, instantiationexception, map, map, number, object, object, swing

The Groovy BoxFactory.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.awt.Dimension
import javax.swing.Box
import javax.swing.BoxLayout

public class BoxFactory extends ComponentFactory {

    public BoxFactory() {
        super(null);
    }
    
    public Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) throws InstantiationException, IllegalAccessException {
        if (FactoryBuilderSupport.checkValueIsType(value, name, Box.class)) {
            return value;
        }
        int axis = BoxLayout.X_AXIS; // default to X so it behaves like FlowLayout
        if (attributes.containsKey("axis")) {
            Object o = attributes.remove("axis");
            if (o instanceof Number) {
                axis = ((Number)o).intValue();
            }
        }
        return new Box(axis);
    }
}

public class HBoxFactory extends ComponentFactory {

    public HBoxFactory() {
        super(null);
    }

    public Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) throws InstantiationException, IllegalAccessException {
        FactoryBuilderSupport.checkValueIsNull(value, name);
        return Box.createHorizontalBox();
    }
}

public class HGlueFactory extends AbstractFactory {
    public Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) throws InstantiationException, IllegalAccessException {
        FactoryBuilderSupport.checkValueIsNull(value, name);
        return Box.createHorizontalGlue();
    }
}

public class HStrutFactory extends AbstractFactory {
    public Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) throws InstantiationException, IllegalAccessException {
        FactoryBuilderSupport.checkValueIsType(value, name, Number.class);
        Object num;
        if (value != null) {
            num = value;
        } else {
            num = attributes.remove("width");
        }
        if (num instanceof Number) {
            return Box.createHorizontalStrut(((Number) num).intValue());
        } else {
            return Box.createHorizontalStrut(6);
        }
    }
}

public class VBoxFactory extends ComponentFactory {

    public VBoxFactory() {
        super(null);
    }

    public Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) throws InstantiationException, IllegalAccessException {
        FactoryBuilderSupport.checkValueIsNull(value, name);
        return Box.createVerticalBox();
    }
}

public class VGlueFactory extends AbstractFactory {
    public Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) throws InstantiationException, IllegalAccessException {
        FactoryBuilderSupport.checkValueIsNull(value, name);
        return Box.createVerticalGlue();
    }
}

public class VStrutFactory extends AbstractFactory {
    public Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) throws InstantiationException, IllegalAccessException {
        FactoryBuilderSupport.checkValueIsType(value, name, Number.class);
        Object num;
        if (value != null) {
            num = value;
        } else {
            num = attributes.remove("height");
        }
        if (num instanceof Number) {
            return Box.createVerticalStrut(((Number) num).intValue());
        } else {
            return Box.createVerticalStrut(6);
        }
    }
}

public class GlueFactory extends AbstractFactory {
    public Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) throws InstantiationException, IllegalAccessException {
        FactoryBuilderSupport.checkValueIsNull(value, name);
        return Box.createGlue();
    }
}

public class RigidAreaFactory extends AbstractFactory {
    public Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) throws InstantiationException, IllegalAccessException {
        FactoryBuilderSupport.checkValueIsNull(value, name);
        Dimension dim;
        Object o = attributes.remove("size");
        if (o instanceof Dimension) {
            dim = (Dimension) o;
        } else {
            int w, h;
            o = attributes.remove("width");
            w = ((o instanceof Number)) ? ((Number) o).intValue() : 6;
            o = attributes.remove("height");
            h = ((o instanceof Number)) ? ((Number) o).intValue() : 6;
            dim = new Dimension(w, h);
        }
        return Box.createRigidArea(dim);
    }
}

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