/*
* RapidMiner
*
* Copyright (C) 2001-2008 by Rapid-I and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapid-i.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.gui.look.ui;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.Point;
import java.awt.event.MouseEvent;
import javax.swing.JComponent;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.event.MouseInputListener;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.UIResource;
import javax.swing.plaf.basic.BasicTableHeaderUI;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.JTableHeader;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
import com.rapidminer.gui.look.RapidLookTools;
/**
* The UI for table headers.
*
* @author Ingo Mierswa
* @version $Id: TableHeaderUI.java,v 1.2 2008/05/09 19:22:42 ingomierswa Exp $
*/
public class TableHeaderUI extends BasicTableHeaderUI {
private TableCellRenderer originalRenderer;
private TableHeaderRenderer mainRenderer;
private int highlightedColumn = -1;
private int pressedColumn = -1;
public static ComponentUI createUI(JComponent h) {
return new TableHeaderUI();
}
@Override
public void installUI(JComponent c) {
super.installUI(c);
this.originalRenderer = this.header.getDefaultRenderer();
if (this.originalRenderer instanceof UIResource) {
this.mainRenderer = new TableHeaderRenderer();
this.mainRenderer.setHorizontalAlignment(SwingConstants.CENTER);
this.header.setDefaultRenderer(this.mainRenderer);
}
}
@Override
public void uninstallUI(JComponent c) {
if (this.header.getDefaultRenderer() instanceof TableHeaderRenderer) {
this.header.setDefaultRenderer(this.originalRenderer);
this.mainRenderer = null;
}
super.uninstallUI(c);
}
@Override
public void installDefaults() {
super.installDefaults();
}
private void updateRolloverColumn(Point p) {
if ((this.header.getDraggedColumn() == null) && this.header.contains(p)) {
int col = this.header.columnAtPoint(p);
if (col != this.highlightedColumn) {
this.highlightedColumn = col;
this.header.repaint();
}
}
}
@Override
protected MouseInputListener createMouseInputListener() {
return new MouseInputHandler() {
@Override
public void mouseMoved(MouseEvent e) {
super.mouseMoved(e);
updateRolloverColumn(e.getPoint());
}
@Override
public void mouseEntered(MouseEvent e) {
super.mouseEntered(e);
updateRolloverColumn(e.getPoint());
}
@Override
public void mouseExited(MouseEvent e) {
super.mouseExited(e);
TableHeaderUI.this.highlightedColumn = -1;
TableHeaderUI.this.header.repaint();
}
@Override
public void mousePressed(MouseEvent e) {
super.mousePressed(e);
if (TableHeaderUI.this.header.contains(e.getPoint())) {
if (TableHeaderUI.this.header.getDraggedColumn() != null) {
TableHeaderUI.this.pressedColumn = TableHeaderUI.this.header.columnAtPoint(e.getPoint());
} else {
if (TableHeaderUI.this.header.getDraggedColumn() != null) {
TableHeaderUI.this.pressedColumn = TableHeaderUI.this.header.getColumnModel().getColumnIndex(TableHeaderUI.this.header.getDraggedColumn());
}
}
}
if (TableHeaderUI.this.header.getReorderingAllowed()) {
TableHeaderUI.this.highlightedColumn = -1;
}
TableHeaderUI.this.header.repaint();
}
@Override
public void mouseDragged(MouseEvent e) {
super.mouseDragged(e);
if (TableHeaderUI.this.header.contains(e.getPoint())) {
TableHeaderUI.this.pressedColumn = -1;
}
updateRolloverColumn(e.getPoint());
}
@Override
public void mouseReleased(MouseEvent e) {
super.mouseReleased(e);
if (TableHeaderUI.this.header.contains(e.getPoint())) {
TableHeaderUI.this.pressedColumn = -1;
}
updateRolloverColumn(e.getPoint());
TableHeaderUI.this.header.repaint();
}
};
}
@Override
public Dimension getPreferredSize(JComponent c) {
return new Dimension((int) super.getPreferredSize(c).getWidth(), Math.max((int) super.getPreferredSize(c).getHeight(), 20));
}
private class TableHeaderRenderer extends DefaultTableCellRenderer implements UIResource {
private static final long serialVersionUID = -7300727448162015796L;
private boolean rollOver;
private boolean isPressed;
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
if (table != null) {
JTableHeader header = table.getTableHeader();
if (header != null) {
setFont(header.getFont());
}
}
this.rollOver = (column == TableHeaderUI.this.highlightedColumn);
if (TableHeaderUI.this.header.getDraggedColumn() != null) {
this.isPressed = (viewIndexForColumn(TableHeaderUI.this.header.getDraggedColumn()) == column) || (column == TableHeaderUI.this.pressedColumn);
} else {
this.isPressed = false;
}
setText((value == null) ? "" : value.toString());
setBorder(null);
return this;
}
@Override
public Insets getInsets() {
return new Insets(2, 4, 2, 4);
}
private int viewIndexForColumn(TableColumn aColumn) {
TableColumnModel cm = TableHeaderUI.this.header.getColumnModel();
for (int column = 0; column < cm.getColumnCount(); column++) {
if (cm.getColumn(column) == aColumn) {
return column;
}
}
return -1;
}
@Override
public void paint(Graphics g) {
int h = this.getHeight();
int w = this.getWidth();
if (this.isPressed) {
g.setColor(RapidLookTools.getColors().getTableHeaderColors()[0]);
g.drawLine(0, 0, w - 1, 0);
g.setColor(RapidLookTools.getColors().getTableHeaderColors()[1]);
g.drawLine(0, 1, w - 1, 1);
Graphics2D g2 = (Graphics2D) g;
g2.setPaint(new GradientPaint(0, 2, RapidLookTools.getColors().getTableHeaderColors()[2], 0, h - 1, RapidLookTools.getColors().getTableHeaderColors()[3]));
g2.fillRect(0, 2, w, h - 1);
g.setColor(RapidLookTools.getColors().getTableHeaderColors()[0]);
g.drawLine(0, h - 1, w - 1, h - 1);
} else {
if (this.rollOver) {
g.setColor(RapidLookTools.getColors().getTableHeaderColors()[4]);
g.drawLine(0, 0, w - 1, 0);
g.setColor(RapidLookTools.getColors().getTableHeaderColors()[5]);
g.drawLine(0, h - 2, w - 1, h - 2);
} else {
g.setColor(RapidLookTools.getColors().getTableHeaderColors()[6]);
g.drawLine(0, 0, w - 1, 0);
g.setColor(RapidLookTools.getColors().getTableHeaderColors()[7]);
g.drawLine(0, h - 2, w - 1, h - 2);
}
Graphics2D g2 = (Graphics2D) g;
g2.setPaint(new GradientPaint(0, 1, RapidLookTools.getColors().getTableHeaderColors()[8], 0, h - 5, RapidLookTools.getColors().getTableHeaderColors()[9]));
g2.fillRect(0, 1, w, h - 5);
g.setColor(RapidLookTools.getColors().getTableHeaderColors()[10]);
g.drawLine(0, h - 5, w - 1, h - 5);
g.setColor(RapidLookTools.getColors().getTableHeaderColors()[11]);
g.drawLine(0, h - 4, w - 1, h - 4);
g.setColor(RapidLookTools.getColors().getTableHeaderColors()[12]);
g.drawLine(0, h - 3, w - 1, h - 3);
g.setColor(RapidLookTools.getColors().getTableHeaderColors()[13]);
g.drawLine(0, h - 1, w - 1, h - 1);
}
super.paint(g);
}
}
}