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JCommon is a free general purpose Java class library that is used in
several projects at www.jfree.org, including JFreeChart and
JFreeReport.
/* ========================================================================
* JCommon : a free general purpose class library for the Java(tm) platform
* ========================================================================
*
* (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jcommon/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* -----------------------
* InsetsChooserPanel.java
* -----------------------
* (C) Copyright 2000-2008, by Andrzej Porebski and Contributors.
*
* Original Author: Andrzej Porebski;
* Contributor(s): David Gilbert (for Object Refinery Limited);
* Arnaud Lelievre;
*
* $Id: InsetsChooserPanel.java,v 1.8 2008/12/18 09:57:32 mungady Exp $
*
* Changes (from 7-Nov-2001)
* -------------------------
* 07-Nov-2001 : Added to com.jrefinery.ui package (DG);
* 14-Oct-2002 : Fixed errors reported by Checkstyle (DG);
* 03-Feb-2003 : Added Math.abs() to ensure no negative insets can be set (DG);
* 08-Sep-2003 : Added internationalization via use of properties
* resourceBundle (RFE 690236) (AL);
* 07-Oct-2005 : Renamed getInsets() --> getInsetsValue() to avoid conflict
* with JComponent's getInsets() (DG);
* 18-Dec-2008 : Use ResourceBundleWrapper - see JFreeChart patch 1607918 by
* Jess Thrysoee (DG);
*
*/
package org.jfree.ui;
import java.awt.BorderLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.util.ResourceBundle;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.TitledBorder;
import org.jfree.util.ResourceBundleWrapper;
/**
* A component for editing an instance of the Insets class.
*
* @author Andrzej Porebski
*/
public class InsetsChooserPanel extends JPanel {
/** A text field for the 'top' setting. */
private JTextField topValueEditor;
/** A text field for the 'left' setting. */
private JTextField leftValueEditor;
/** A text field for the 'bottom' setting. */
private JTextField bottomValueEditor;
/** A text field for the 'right' setting. */
private JTextField rightValueEditor;
/** The resourceBundle for the localization. */
protected static ResourceBundle localizationResources
= ResourceBundleWrapper.getBundle(
"org.jfree.ui.LocalizationBundle");
/**
* Creates a chooser panel that allows manipulation of Insets values.
* The values are initialized to the empty insets (0,0,0,0).
*/
public InsetsChooserPanel() {
this(new Insets(0, 0, 0, 0));
}
/**
* Creates a chooser panel that allows manipulation of Insets values.
* The values are initialized to the current values of provided insets.
*
* @param current the insets.
*/
public InsetsChooserPanel(Insets current) {
current = (current == null) ? new Insets(0, 0, 0, 0) : current;
this.topValueEditor = new JTextField(new IntegerDocument(), ""
+ current.top, 0);
this.leftValueEditor = new JTextField(new IntegerDocument(), ""
+ current.left, 0);
this.bottomValueEditor = new JTextField(new IntegerDocument(), ""
+ current.bottom, 0);
this.rightValueEditor = new JTextField(new IntegerDocument(), ""
+ current.right, 0);
final JPanel panel = new JPanel(new GridBagLayout());
panel.setBorder(
new TitledBorder(localizationResources.getString("Insets")));
// First row
panel.add(new JLabel(localizationResources.getString("Top")),
new GridBagConstraints(1, 0, 3, 1, 0.0, 0.0,
GridBagConstraints.CENTER, GridBagConstraints.NONE,
new Insets(0, 0, 0, 0), 0, 0));
// Second row
panel.add(new JLabel(" "), new GridBagConstraints(1, 1, 1, 1, 0.0, 0.0,
GridBagConstraints.CENTER, GridBagConstraints.BOTH,
new Insets(0, 12, 0, 12), 8, 0));
panel.add(this.topValueEditor, new GridBagConstraints(2, 1, 1, 1, 0.0,
0.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
new Insets(0, 0, 0, 0), 0, 0));
panel.add(new JLabel(" "), new GridBagConstraints(3, 1, 1, 1, 0.0, 0.0,
GridBagConstraints.CENTER, GridBagConstraints.BOTH,
new Insets(0, 12, 0, 11), 8, 0));
// Third row
panel.add(new JLabel(localizationResources.getString("Left")),
new GridBagConstraints(0, 2, 1, 1, 0.0, 0.0,
GridBagConstraints.CENTER, GridBagConstraints.BOTH,
new Insets(0, 4, 0, 4), 0, 0));
panel.add(this.leftValueEditor, new GridBagConstraints(1, 2, 1, 1,
0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.BOTH,
new Insets(0, 0, 0, 0), 0, 0));
panel.add(new JLabel(" "), new GridBagConstraints(2, 2, 1, 1, 0.0, 0.0,
GridBagConstraints.CENTER, GridBagConstraints.NONE,
new Insets(0, 12, 0, 12), 8, 0));
panel.add(this.rightValueEditor, new GridBagConstraints(3, 2, 1, 1,
0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
new Insets(0, 0, 0, 0), 0, 0));
panel.add(new JLabel(localizationResources.getString("Right")),
new GridBagConstraints(4, 2, 1, 1, 0.0, 0.0,
GridBagConstraints.CENTER, GridBagConstraints.NONE,
new Insets(0, 4, 0, 4), 0, 0));
// Fourth row
panel.add(this.bottomValueEditor, new GridBagConstraints(2, 3, 1, 1,
0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
new Insets(0, 0, 0, 0), 0, 0));
// Fifth row
panel.add(new JLabel(localizationResources.getString("Bottom")),
new GridBagConstraints(1, 4, 3, 1, 0.0, 0.0,
GridBagConstraints.CENTER, GridBagConstraints.NONE,
new Insets(0, 0, 0, 0), 0, 0));
setLayout(new BorderLayout());
add(panel, BorderLayout.CENTER);
}
/**
* Returns a new Insets instance to match the values entered
* on the panel.
*
* @return The insets.
*/
public Insets getInsetsValue() {
return new Insets(
Math.abs(stringToInt(this.topValueEditor.getText())),
Math.abs(stringToInt(this.leftValueEditor.getText())),
Math.abs(stringToInt(this.bottomValueEditor.getText())),
Math.abs(stringToInt(this.rightValueEditor.getText())));
}
/**
* Converts a string representing an integer into its numerical value.
* If this string does not represent a valid integer value, value of 0
* is returned.
*
* @param value the string.
*
* @return the value.
*/
protected int stringToInt(String value) {
value = value.trim();
if (value.length() == 0) {
return 0;
}
else {
try {
return Integer.parseInt(value);
}
catch (NumberFormatException e) {
return 0;
}
}
}
/**
* Calls super removeNotify and removes all subcomponents from this panel.
*/
public void removeNotify() {
super.removeNotify();
removeAll();
}
}
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