Application: gvSIG desktop

import java.awt.Component;

import java.awt.Dimension;

import java.awt.GradientPaint;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.File;

import java.util.ArrayList;

import java.util.List;

import javax.swing.JComponent;

import javax.swing.JList;

import javax.swing.ListCellRenderer;

import org.gvsig.gui.ColorTablePainter;

import org.gvsig.i18n.Messages;

import org.gvsig.symbology.swing.SymbologySwingLocator;

 *

 * @autor jaume dominguez faus - jaume.dominguez@iver.es

	private String palettesPath = System.getProperty("user.home") +

	File.separator +

	"gvSIG" +

	File.separator +

	"ColorSchemes";

//	private boolean interpolated = false;

	private List<ColorTablePainter> colorTables = new ArrayList<ColorTablePainter>();

	private ActionListener innerActionUpdateTooltip = new ActionListener() {

		public void actionPerformed(ActionEvent e) {

			ColorTablePainter colorTable = (ColorTablePainter)getSelectedItem();

			if (colorTable != null) {

				setToolTipText(colorTable.getTableName());

			} else {

				setToolTipText(Messages.getText("select_a_color_scheme"));

			}

		}

	};

	/**

	 * Constructor method

	 *

	 * @param interpolateValues

	 */

	public JComboBoxColorScheme(boolean interpolateValues) {

		super();

//		interpolated = interpolateValues;

		setPreferredSize(new Dimension(150, 20));

		List<ColorTablePainter> colorTables = SymbologySwingLocator.getSwingManager().createColorTables();

		if(colorTables != null){

			for (int i=0; i<colorTables.size(); i++) {

				ColorTablePainter colorTable = colorTables.get(i);

//				ArrayList array = new ArrayList();

//				array.add(colorTable.getTableName());

//				array.add(colorTable);

//				addItem(array);

				addItem(colorTable);

			}

			addActionListener(innerActionUpdateTooltip);

			setRenderer(new ListCellRenderer() {

				public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {

					ColorTablePainter colorTable = (ColorTablePainter) value;

					ColorSchemeItemPainter paintItem = new ColorSchemeItemPainter(colorTable.getTableName(), colorTable, isSelected);

					paintItem.setPreferredSize(getPreferredSize());

					return paintItem;

				}

			});

		}

	}

	/**

	 * Returns an array composed with the selected colors

	 * @return

	 */

		ColorTablePainter colorTable = (ColorTablePainter) getSelectedItem();

		if (colorTable == null) {

			return null;

		}

		return colorTable.getColors();

	}

	public void setSelectedColors(Color[] colors) {

		colorTables.clear();

		if (colors == null) {

			setSelectedIndex(0);

			return;

		} else {

			for (int i = 0; i < getItemCount(); i++) {

				colorTables.add((ColorTablePainter) getItemAt(i));

			}

			for (int i = 0; i < colorTables.size(); i++) {

				ColorTablePainter colorTable = colorTables.get(i);

				Color[] myColors = colorTable.getColors();

				boolean isEqual = true;

				if(myColors.length == colors.length) {

					for (int j = 0; isEqual && j < myColors.length; j++) {

						Color c1 = myColors[j];

						Color c2 = colors[j];

						isEqual = c1.getRGB() == c2.getRGB() && c1.getAlpha() == c2.getAlpha();

					}

					if(isEqual) {

						setSelectedIndex(i);

						repaint();

						return;

					}

				}

			}

			if(getItemCount()> 0) {

				setSelectedItem(0);

			}

		}

	}

	private class ColorSchemeItemPainter extends JComponent {

		private static final long serialVersionUID = -6448740563809113949L;

		private boolean isSelected = false;

		private ColorTablePainter colorTablePaint = null;

		/**

		 * Constructor method

		 *

		 * @param name

		 * @param colorTablePaint

		 * @param isSelected

		 */

		public ColorSchemeItemPainter(String name, ColorTablePainter colorTablePaint, boolean isSelected) {

			super();

			this.colorTablePaint = colorTablePaint;

			this.isSelected = isSelected;

			setToolTipText(name);

		}

		public void paintComponent(Graphics g) {

			Graphics2D g2 = (Graphics2D) g;

			if (isSelected) {

				Color color1 = new Color(89, 153, 229);

				Color color2 = new Color(31, 92, 207);

				g2.setPaint(new GradientPaint(0, 1, color1, 0, getHeight() - 1, color2, false));

				g2.fillRect(0, 1, getWidth(), getHeight() - 1);

				g2.setColor(new Color(61, 123, 218));

				g2.drawLine(0, 0, getWidth(), 0);

				g2.setColor(Color.white);

			} else {

				g2.setColor(Color.white);

				g2.fillRect(0, 0, getWidth(), getHeight());

				g2.setColor(Color.black);

			}

			colorTablePaint.paint(g2, isSelected);

		}

	}