de.codesourcery.eve.skills.ui.utils.ResizingTextField.java Source code

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Here is the source code for de.codesourcery.eve.skills.ui.utils.ResizingTextField.java

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/**
 * Copyright 2004-2009 Tobias Gierke <tobias.gierke@code-sourcery.de>
 *
 * 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 de.codesourcery.eve.skills.ui.utils;

import java.awt.Container;
import java.awt.Dimension;
import java.awt.FontMetrics;

import javax.swing.JComponent;
import javax.swing.JTextField;

import org.apache.commons.lang.StringUtils;

public class ResizingTextField extends JTextField {

    public ResizingTextField() {
        this("");
    }

    public ResizingTextField(String text) {
        super(text);

        FontMetrics fm = this.getFontMetrics(this.getFont());
        int height = fm.getHeight();

        this.setMaximumSize(new java.awt.Dimension(10000, height + 6));
    }

    /**
     * Override of set text, so that long labels will look correct
     * 
     * @param text
     *            new text for the object
     */
    @Override
    public void setText(String text) {
        super.setText(text);

        final Dimension newSize = calcSize(text);
        System.out.println("New preferred size: " + newSize);
        setMinimumSize(newSize);
        setPreferredSize(newSize);

        // find top-level parent container
        Container parent = getParent();
        //        while ( parent != null )
        //        {
        //            if ( parent.getParent() != null && parent.getParent() instanceof JComponent )
        //            {
        //                parent = parent.getParent();
        //            }
        //            else
        //            {
        //                break;
        //            }
        //        }

        //        if ( parent instanceof JComponent )
        //        {
        //           System.out.println("*** invalidating "+parent);
        //            ( (JComponent) getParent() ).revalidate();
        //            ( (JComponent) getParent() ).repaint();
        //        }

        if (parent instanceof Container) {
            System.out.println("*** invalidating " + parent);
            getParent().invalidate();
            getParent().validate();
        }
    }

    protected Dimension calcSize(String text) {
        final FontMetrics fm = this.getFontMetrics(this.getFont());
        final int height = fm.getHeight();

        final int colCount = Math.max(getColumns(), 1);
        final String realText = StringUtils.isBlank(text) ? StringUtils.leftPad("X", colCount, " ")
                : " " + text + " ";

        int width = (int) (1.2f * fm.stringWidth(realText));
        return new Dimension(width, height + 6);
    }

    @Override
    public Dimension getPreferredSize() {
        return calcSize(getText());
    }
}