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/*******************************************************************************
* Copyright (c) 2007, 2010 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.utility.internal.swing;
import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.Icon;
import javax.swing.JCheckBox;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.border.Border;
import org.eclipse.jpt.utility.internal.swing.TableCellEditorAdapter.ImmediateEditListener;
/**
* Make the cell look like a check box.
*/
public class CheckBoxTableCellRenderer implements TableCellEditorAdapter.Renderer {
/** the component used to paint the cell */
private final JCheckBox checkBox;
/** the listener to be notified on an immediate edit */
protected TableCellEditorAdapter.ImmediateEditListener immediateEditListener;
/** "normal" border - assume the default table "focus" border is 1 pixel thick */
private static final Border NO_FOCUS_BORDER = BorderFactory.createEmptyBorder(1, 1, 1, 1);
// ********** constructors/initialization **********
/**
* Construct a cell renderer with no label or icon.
*/
public CheckBoxTableCellRenderer() {
super();
this.checkBox = this.buildCheckBox();
// by default, check boxes do not paint their borders
this.checkBox.setBorderPainted(true);
// this setting is recommended for check boxes inside of trees and tables
this.checkBox.setBorderPaintedFlat(true);
}
/**
* Construct a cell renderer with the specified text and icon,
* either of which may be null.
*/
public CheckBoxTableCellRenderer(String text, Icon icon) {
this();
this.setText(text);
this.setIcon(icon);
}
/**
* Construct a cell renderer with the specified text.
*/
public CheckBoxTableCellRenderer(String text) {
this(text, null);
}
/**
* Construct a cell renderer with the specified icon.
*/
public CheckBoxTableCellRenderer(Icon icon) {
this(null, icon);
}
protected JCheckBox buildCheckBox() {
JCheckBox cb = new JCheckBox();
cb.addActionListener(this.buildActionListener());
return cb;
}
private ActionListener buildActionListener() {
return new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (CheckBoxTableCellRenderer.this.immediateEditListener != null) {
CheckBoxTableCellRenderer.this.immediateEditListener.immediateEdit();
}
}
};
}
// ********** TableCellRenderer implementation **********
public Component getTableCellRendererComponent(JTable table, Object value, boolean selected, boolean hasFocus, int row, int column) {
this.checkBox.setHorizontalAlignment(SwingConstants.CENTER);
this.checkBox.setComponentOrientation(table.getComponentOrientation());
this.checkBox.setFont(table.getFont());
this.checkBox.setEnabled(table.isEnabled());
this.checkBox.setForeground(this.foregroundColor(table, value, selected, hasFocus, row, column));
this.checkBox.setBackground(this.backgroundColor(table, value, selected, hasFocus, row, column));
// once the colors are set, calculate opaque setting
this.checkBox.setOpaque(this.cellIsOpaqueIn(table, value, selected, hasFocus, row, column));
this.checkBox.setBorder(this.border(table, value, selected, hasFocus, row, column));
this.setValue(value);
return this.checkBox;
}
/**
* Return the cell's foreground color.
*/
protected Color foregroundColor(JTable table, @SuppressWarnings("unused") Object value, boolean selected, boolean hasFocus, int row, int column) {
if (selected) {
if (hasFocus && table.isCellEditable(row, column)) {
return UIManager.getColor("Table.focusCellForeground"); //$NON-NLS-1$
}
return table.getSelectionForeground();
}
return table.getForeground();
}
/**
* Return the cell's background color.
*/
protected Color backgroundColor(JTable table, @SuppressWarnings("unused") Object value, boolean selected, boolean hasFocus, int row, int column) {
if (selected) {
if (hasFocus && table.isCellEditable(row, column)) {
return UIManager.getColor("Table.focusCellBackground"); //$NON-NLS-1$
}
return table.getSelectionBackground();
}
return table.getBackground();
}
/**
* Return the cell's border.
*/
protected Border border(@SuppressWarnings("unused") JTable table, @SuppressWarnings("unused") Object value, @SuppressWarnings("unused") boolean selected, boolean hasFocus, @SuppressWarnings("unused") int row, @SuppressWarnings("unused") int column) {
return hasFocus ? UIManager.getBorder("Table.focusCellHighlightBorder") : NO_FOCUS_BORDER; //$NON-NLS-1$
}
/**
* Return whether the cell should be opaque in the table.
* If the cell's background is the same as the table's background
* and table is opaque, we don't need to paint the background -
* the table will do it.
*/
protected boolean cellIsOpaqueIn(JTable table, @SuppressWarnings("unused") Object value, @SuppressWarnings("unused") boolean selected, @SuppressWarnings("unused") boolean hasFocus, @SuppressWarnings("unused") int row, @SuppressWarnings("unused") int column) {
Color cellBackground = this.checkBox.getBackground();
Color tableBackground = table.getBackground();
return ! (table.isOpaque() && cellBackground.equals(tableBackground));
}
/**
* Set the check box's value.
*/
protected void setValue(Object value) {
// CR#3999318 - This null check needs to be removed once JDK bug is fixed
if (value == null) {
value = Boolean.FALSE;
}
this.checkBox.setSelected(((Boolean) value).booleanValue());
}
// ********** TableCellEditorAdapter.Renderer implementation **********
public Object getValue() {
return Boolean.valueOf(this.checkBox.isSelected());
}
public void setImmediateEditListener(ImmediateEditListener listener) {
this.immediateEditListener = listener;
}
// ********** public API **********
/**
* Set the check box's text; which by default is blank.
*/
public void setText(String text) {
this.checkBox.setText(text);
}
/**
* Set the check box's icon; which by default is not present.
*/
public void setIcon(Icon icon) {
this.checkBox.setIcon(icon);
}
/**
* Return the renderer's preferred height. This allows you
* to set the table's row height to something the check box
* will look good in....
*/
public int preferredHeight() {
// add in space for the border top and bottom
return (int) this.checkBox.getPreferredSize().getHeight() + 2;
}
}
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