| /******************************************************************************* |
| * Copyright (C) 2007 The University of Manchester |
| * |
| * Modifications to the initial code base are copyright of their |
| * respective authors, or their employers as appropriate. |
| * |
| * This program 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 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| ******************************************************************************/ |
| /** |
| * This file is a component of the Taverna project, |
| * and is licensed under the GNU LGPL. |
| * Copyright Tom Oinn, EMBL-EBI |
| */ |
| package net.sf.taverna.t2.lang.ui; |
| |
| import java.awt.Color; |
| import java.awt.FlowLayout; |
| import java.awt.GradientPaint; |
| import java.awt.Graphics; |
| import java.awt.Graphics2D; |
| import java.awt.Paint; |
| |
| import javax.swing.Box; |
| import javax.swing.JLabel; |
| import javax.swing.JPanel; |
| import javax.swing.SwingConstants; |
| |
| /** |
| * A JLabel like component with a shaded background |
| * |
| * @author Tom Oinn |
| */ |
| public class ShadedLabel extends JPanel { |
| |
| // If you change these, please make sure BLUE is really blue, etc.. :-) |
| |
| public static Color ORANGE = new Color(238, 206, 143); |
| |
| public static Color BLUE = new Color(213, 229, 246); |
| |
| public static Color GREEN = new Color(161, 198, 157); |
| |
| final JLabel label; |
| |
| Color colour; |
| |
| Color toColour = Color.WHITE; |
| |
| private String text; |
| |
| /** |
| * Create a ShadedLabel blending from the specified colour to white (left to |
| * right) and with the specified text. |
| */ |
| public ShadedLabel(String text, Color colour) { |
| this(text, colour, false); |
| } |
| |
| /** |
| * Create a ShadedLabel blending from the specified colour to either white |
| * if halfShade is false or to a colour halfway between the specified colour |
| * and white if true and with the specified text |
| */ |
| public ShadedLabel(String text, Color colour, boolean halfShade) { |
| super(new FlowLayout(FlowLayout.LEFT, 0, 3)); |
| |
| if (halfShade) { |
| toColour = halfShade(colour); |
| } |
| label = new JLabel("", |
| SwingConstants.LEFT); |
| setText(text); |
| label.setOpaque(false); |
| add(Box.createHorizontalStrut(5)); |
| add(label); |
| add(Box.createHorizontalStrut(5)); |
| setOpaque(false); |
| this.colour = colour; |
| } |
| |
| public void setText(String text) { |
| this.text = text; |
| label.setText("<html><body><b>" + text + "</b></body></html>"); |
| invalidate(); |
| } |
| |
| public String getText() { |
| return text; |
| } |
| |
| @Override |
| protected void paintComponent(Graphics g) { |
| final int width = getWidth(); |
| final int height = getHeight(); |
| Graphics2D g2d = (Graphics2D) g; |
| Paint oldPaint = g2d.getPaint(); |
| g2d.setPaint(new GradientPaint(0, 0, this.colour, width, height, |
| toColour)); |
| g2d.fillRect(0, 0, width, height); |
| g2d.setPaint(oldPaint); |
| super.paintComponent(g); |
| } |
| |
| public static Color halfShade(Color colour) { |
| return new Color((colour.getRed() + 510) / 3, |
| (colour.getGreen() + 510) / 3, (colour.getBlue() + 510) / 3); |
| } |
| |
| @Override |
| public boolean isFocusable() { |
| return false; |
| } |
| |
| } |
