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Sourcecode: libjgoodies-forms-java version File versions  Download package

ComponentSizesExample.java

/*
 * Copyright (c) 2002-2004 JGoodies Karsten Lentzsch. 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 JGoodies Karsten Lentzsch 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 com.jgoodies.forms.tutorial.basics;

import java.awt.Insets;

import javax.swing.*;
import javax.swing.border.EmptyBorder;

import com.jgoodies.forms.builder.DefaultFormBuilder;
import com.jgoodies.forms.builder.PanelBuilder;
import com.jgoodies.forms.layout.CellConstraints;
import com.jgoodies.forms.layout.FormLayout;

/**
 * Demonstrates the three FormLayout component sizes: minimum, default and 
 * preferred.
 * Min and Pref measure the components minimum and preferred size, where the 
 * Default size behaves like Pref but shrinks if the container space is scarce.
 *
 * @author  Karsten Lentzsch
 * @version $Revision: 1.8 $
 */
00052 public final class ComponentSizesExample {

    
    public static void main(String[] args) {
        try {
            UIManager.setLookAndFeel("com.jgoodies.plaf.plastic.PlasticXPLookAndFeel");
        } catch (Exception e) {
            // Likely PlasticXP is not in the class path; ignore.
        }
        JFrame frame = new JFrame();
        frame.setTitle("Forms Tutorial :: Component Sizes");
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        JComponent panel = new ComponentSizesExample().buildPanel();
        frame.getContentPane().add(panel);
        frame.pack();
        frame.setVisible(true);
    }


    public JComponent buildPanel() {
        JSplitPane splitPane = new JSplitPane(
            JSplitPane.HORIZONTAL_SPLIT,
            true,
            buildCombinedPanel(), 
            buildTextPanel());
        return splitPane;
    }
    
        
    /**
     * Builds and answer the panel that combines the three sizing panels.
     * 
     * @return the combined panel
     */
00086     private JComponent buildCombinedPanel() {
        FormLayout layout = new FormLayout(
            "30dlu:grow",
            "pref, 3dlu, pref, 3dlu, pref");
            
        PanelBuilder builder = new PanelBuilder(layout);
        builder.setDefaultDialogBorder();

        CellConstraints cc = new CellConstraints();

        builder.add(buildMinimumSizePanel(),   cc.xy(1, 1));
        builder.add(buildDefaultSizePanel(),   cc.xy(1, 3));
        builder.add(buildPreferredSizePanel(), cc.xy(1, 5));
        
        return builder.getPanel();
    }
    

    private JComponent buildMinimumSizePanel() {
        FormLayout layout = new FormLayout( 
                "right:max(25dlu;pref), 3dlu, min",
                "pref");
        DefaultFormBuilder builder = new DefaultFormBuilder(layout);
        builder.append("Min", new JTextField(15));
        return builder.getPanel();
    }
    
    private JComponent buildDefaultSizePanel() {
        FormLayout layout = new FormLayout(
                "right:max(25dlu;pref), 3dlu, default",
                "pref");
        DefaultFormBuilder builder = new DefaultFormBuilder(layout);
        builder.append("Default", new JTextField(15));
        return builder.getPanel();
    }
    
    private JComponent buildPreferredSizePanel() {
        FormLayout layout = new FormLayout(
                "right:max(25dlu;pref), 3dlu, pref",
                "pref");
        DefaultFormBuilder builder = new DefaultFormBuilder(layout);
        builder.append("Pref", new JTextField(15));
        return builder.getPanel();
    }
    
    private JComponent buildTextPanel() {
        JTextArea textArea = new JTextArea(5, 20);
        textArea.setEditable(false);
        textArea.setMargin(new Insets(6, 10, 4, 6));
        textArea.setText("The text field used in the example on the left\n" +
        "has a narrow minimum width and a wider preferred width.\n\n" +
        "If you move the split divider to the left and right\n" +
        "you can see how 'Default' shrinks the field if space is scarce.\n\n" +
        "If there's not enough space for the preferred width\n" + 
        "the bottom field will be 'cut' on the right-hand side.");
        JScrollPane scrollpane = new JScrollPane(textArea);
        scrollpane.setBorder(new EmptyBorder(0, 0, 0, 0));
        return scrollpane;
    }
    
    
}


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