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/*
* Copyright 2007-2008 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - 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.
*
* - Neither the name of Sun Microsystems 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.sun.swingset3.demos.table;
import java.awt.Color;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.Insets;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.ArrayList;
import java.util.HashMap;
import javax.swing.Action;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.border.Border;
import javax.swing.border.EmptyBorder;
import javax.swing.table.TableCellRenderer;
import com.sun.swingset3.demos.JHyperlink;
/**
* Table renderer which renders cell value as hyperlink with optional rollover underline.
*
* @author aim
*/
public class HyperlinkCellRenderer extends JHyperlink implements TableCellRenderer {
private JTable table;
private final ArrayList columnModelIndeces = new ArrayList();
private Color rowColors[];
private Color foreground;
private Color visitedForeground;
private Border focusBorder;
private Border noFocusBorder;
private boolean underlineOnRollover = true;
private transient int hitColumnIndex = -1;
private transient int hitRowIndex = -1;
private HashMap visitedCache;
public HyperlinkCellRenderer(Action action, boolean underlineOnRollover) {
setAction(action);
setHorizontalAlignment(JHyperlink.LEFT);
rowColors = new Color[1];
rowColors[0] = UIManager.getColor("Table.background");
this.underlineOnRollover = underlineOnRollover;
applyDefaults();
}
public void setRowColors(Color[] colors) {
this.rowColors = colors;
}
public void updateUI() {
super.updateUI();
applyDefaults();
}
protected void applyDefaults() {
setOpaque(true);
setBorderPainted(false);
foreground = UIManager.getColor("Hyperlink.foreground");
visitedForeground = UIManager.getColor("Hyperlink.visitedForeground");
// Make sure border used on non-focussed cells is same size as focussed border
focusBorder = UIManager.getBorder("Table.focusCellHighlightBorder");
if (focusBorder != null) {
Insets insets = focusBorder.getBorderInsets(this);
noFocusBorder = new EmptyBorder(insets.top, insets.left, insets.bottom, insets.right);
} else {
focusBorder = noFocusBorder = new EmptyBorder(1, 1, 1, 1);
}
}
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
if (this.table == null) {
this.table = table;
HyperlinkMouseListener hyperlinkListener = new HyperlinkMouseListener();
table.addMouseMotionListener(hyperlinkListener);
table.addMouseListener(hyperlinkListener);
}
int columnModelIndex = table.getColumnModel().getColumn(column).getModelIndex();
if (!columnModelIndeces.contains(columnModelIndex)) {
columnModelIndeces.add(columnModelIndex);
}
if (value instanceof Link) {
Link link = (Link) value;
setText(link.getDisplayText());
setToolTipText(link.getDescription());
} else {
setText(value != null ? value.toString() : "");
}
setVisited(isCellLinkVisited(value, row, column));
setDrawUnderline(!underlineOnRollover ||
(row == hitRowIndex && column == hitColumnIndex));
if (!isSelected) {
setBackground(rowColors[row % rowColors.length]);
//setForeground(isCellLinkVisited(value, row, column)?
// visitedForeground : foreground);
setForeground(foreground);
setVisitedForeground(visitedForeground);
} else {
setBackground(table.getSelectionBackground());
setForeground(table.getSelectionForeground());
setVisitedForeground(table.getSelectionForeground());
}
//setBorder(hasFocus? focusBorder : noFocusBorder);
//System.out.println("border insets="+getBorder().getBorderInsets(this));
return this;
}
protected void setCellLinkVisited(Object value, int row, int column) {
if (!isCellLinkVisited(value, row, column)) {
if (value instanceof Link) {
((Link) value).setVisited(true);
} else {
if (visitedCache == null) {
visitedCache = new HashMap();
}
int position[] = new int[2];
position[0] = table.convertRowIndexToModel(row);
position[1] = table.convertColumnIndexToModel(column);
visitedCache.put(value, position);
}
}
}
protected boolean isCellLinkVisited(Object value, int row, int column) {
if (value instanceof Link) {
return ((Link) value).isVisited();
}
if (visitedCache != null) {
int position[] = visitedCache.get(value);
if (position != null) {
return position[0] == table.convertRowIndexToModel(row) &&
position[1] == table.convertColumnIndexToModel(column);
}
}
return false;
}
public int getActiveHyperlinkRow() {
return hitRowIndex;
}
public int getActiveHyperlinkColumn() {
return hitColumnIndex;
}
// overridden because the AbstractButton's version forces the source of the event
// to be the AbstractButton and we want a little more freedom to configure the
// event
@Override
protected void fireActionPerformed(ActionEvent event) {
// Guaranteed to return a non-null array
Object[] listeners = listenerList.getListenerList();
// Process the listeners last to first, notifying
// those that are interested in this event
for (int i = listeners.length - 2; i >= 0; i -= 2) {
if (listeners[i] == ActionListener.class) {
((ActionListener) listeners[i + 1]).actionPerformed(event);
}
}
}
public void invalidate() {
}
public void validate() {
}
public void revalidate() {
}
public void repaint(long tm, int x, int y, int width, int height) {
}
public void repaint(Rectangle r) {
}
public void repaint() {
}
private class HyperlinkMouseListener extends MouseAdapter {
private transient Rectangle cellRect;
private final transient Rectangle iconRect = new Rectangle();
private final transient Rectangle textRect = new Rectangle();
private transient Cursor tableCursor;
@Override
public void mouseMoved(MouseEvent event) {
// This should only be called if underlineOnRollover is true
JTable table = (JTable) event.getSource();
// Locate the table cell under the event location
int oldHitColumnIndex = hitColumnIndex;
int oldHitRowIndex = hitRowIndex;
checkIfPointInsideHyperlink(event.getPoint());
if (hitRowIndex != oldHitRowIndex ||
hitColumnIndex != oldHitColumnIndex) {
if (hitRowIndex != -1) {
if (tableCursor == null) {
tableCursor = table.getCursor();
}
table.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
} else {
table.setCursor(tableCursor);
}
// repaint the cells affected by rollover
Rectangle repaintRect;
if (hitRowIndex != -1 && hitColumnIndex != -1) {
// we need to repaint new cell with rollover underline
// cellRect already contains rect of hit cell
if (oldHitRowIndex != -1 && oldHitColumnIndex != -1) {
// we also need to repaint previously underlined hyperlink cell
// to remove the underline
repaintRect = cellRect.union(
table.getCellRect(oldHitRowIndex, oldHitColumnIndex, false));
} else {
// we don't have a previously underlined hyperlink, so just repaint new one'
repaintRect = table.getCellRect(hitRowIndex, hitColumnIndex, false);
}
} else {
// we just need to repaint previously underlined hyperlink cell
//to remove the underline
repaintRect = table.getCellRect(oldHitRowIndex, oldHitColumnIndex, false);
}
table.repaint(repaintRect);
}
}
@Override
public void mouseClicked(MouseEvent event) {
if (checkIfPointInsideHyperlink(event.getPoint())) {
ActionEvent actionEvent = new ActionEvent(new Integer(hitRowIndex),
ActionEvent.ACTION_PERFORMED,
"hyperlink");
HyperlinkCellRenderer.this.fireActionPerformed(actionEvent);
setCellLinkVisited(table.getValueAt(hitRowIndex, hitColumnIndex),
hitRowIndex, hitColumnIndex);
}
}
protected boolean checkIfPointInsideHyperlink(Point p) {
hitColumnIndex = table.columnAtPoint(p);
hitRowIndex = table.rowAtPoint(p);
if (hitColumnIndex != -1 && hitRowIndex != -1 &&
columnModelIndeces.contains(table.getColumnModel().
getColumn(hitColumnIndex).getModelIndex())) {
// We know point is within a hyperlink column, however we do further hit testing
// to see if point is within the text bounds on the hyperlink
TableCellRenderer renderer = table.getCellRenderer(hitRowIndex, hitColumnIndex);
JHyperlink hyperlink = (JHyperlink) table.prepareRenderer(renderer, hitRowIndex, hitColumnIndex);
// Convert the event to the renderer's coordinate system
cellRect = table.getCellRect(hitRowIndex, hitColumnIndex, false);
hyperlink.setSize(cellRect.width, cellRect.height);
p.translate(-cellRect.x, -cellRect.y);
cellRect.x = cellRect.y = 0;
iconRect.x = iconRect.y = iconRect.width = iconRect.height = 0;
textRect.x = textRect.y = textRect.width = textRect.height = 0;
SwingUtilities.layoutCompoundLabel(
hyperlink.getFontMetrics(hyperlink.getFont()),
hyperlink.getText(), hyperlink.getIcon(),
hyperlink.getVerticalAlignment(),
hyperlink.getHorizontalAlignment(),
hyperlink.getVerticalTextPosition(),
hyperlink.getHorizontalTextPosition(),
cellRect, iconRect, textRect, hyperlink.getIconTextGap());
if (textRect.contains(p)) {
// point is within hyperlink text bounds
return true;
}
}
// point is not within a hyperlink's text bounds
hitRowIndex = -1;
hitColumnIndex = -1;
return false;
}
}
}
