Application: gvSIG desktop » gvSIG raster

import java.awt.Graphics;

import java.awt.event.MouseListener;

import java.awt.event.MouseMotionListener;

/**

 * Canvas where graphic elements are painted

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public interface GCanvas extends MouseListener, MouseMotionListener {

	/**

     * Creates a border layer to the graphic canvas

	 * @param c1

	 * @return ArrayList de DrawableElements

	 */

	/**

	 * Reemplaza un elemento dibujable si encuentra uno del tipo especificado en el 

	 * @param element

	 * @param c1

	 */

	/**

	 * Elimina un elemento dibujable

	 * @param Class clase del elemento a eliminar

	 */

	/**

	 * Asigna una lista de elementos dibujables

	 * @return

	 */

	/**

	 * Inicializa el fondo y dibuja el gr?fico sobre el canvas.

import java.awt.Graphics2D;

import java.awt.RenderingHints;

import java.awt.geom.Rectangle2D;

import org.gvsig.raster.swing.gcanvas.DrawableElement;

import org.gvsig.raster.swing.gcanvas.InfoLayer;

/**

 * Capa para GCanvas que muestra el maximo y minimo de una banda

 * 

 */

public class DefaultInfoLayer extends InfoLayer {

	private Color        color       = null;

					(int) ((Component)canvas).getHeight() - canvas.getCanvasMinX());

		}

		if (list.size() > 0) {

			DefaultMinMaxLines minMaxLines = (DefaultMinMaxLines) list.get(0);

import java.awt.Component;

import java.awt.Cursor;

import java.awt.event.MouseEvent;

import org.gvsig.raster.swing.gcanvas.SquareRootPowLine;

import org.gvsig.raster.swing.impl.DefaultRasterSwingManager;

import org.gvsig.raster.swing.impl.canvas.layer.DefaultInfoLayer;

 * -1.0: Para una funcion cuadrada

 * 0.0: Para una funcion lineal

 * 

 */

@SuppressWarnings("unchecked")

public class DefaultSquareRootPowLine extends DefaultStraightLine implements SquareRootPowLine {

	 */

	private void setInfoPoint(Double perc) {

		if (canvas != null) {

			if (list.size() > 0) {

				DefaultInfoLayer infoLayer = (DefaultInfoLayer) list.get(0);

import java.awt.Component;

import java.awt.Cursor;

import java.awt.event.MouseEvent;

import org.gvsig.raster.swing.gcanvas.LogaritmicExponentialLine;

import org.gvsig.raster.swing.impl.DefaultRasterSwingManager;

import org.gvsig.raster.swing.impl.canvas.layer.DefaultInfoLayer;

 * -1.0: Para una funcion exponencial

 * 0.0: Para una funcion lineal

 * 

 */

public class DefaultLogaritmicExponentialLine extends DefaultStraightLine implements LogaritmicExponentialLine {

	/**

	 * Cuando el porcentaje es menor a 0 siempre estamos en la exponencial

	 * @param perc

	 */

	private void setInfoPoint(Double perc) {

		if (canvas != null) {

			if (list.size() > 0) {

				DefaultInfoLayer infoLayer = (DefaultInfoLayer) list.get(0);

import java.awt.event.MouseEvent;

import java.awt.image.MemoryImageSource;

import java.util.ArrayList;

import org.gvsig.raster.swing.gcanvas.StraightLine;

import org.gvsig.raster.swing.impl.canvas.DefaultGCanvas;

import org.gvsig.raster.swing.impl.canvas.layer.DefaultInfoLayer;

 * Representa una linea recta con puntos de arrastre para la ecualizaci?n de

 * un histograma y realce lineales y dencity slicing.

 *

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class DefaultStraightLine extends DefaultBaseFunction implements StraightLine {

	/**

	 * Representa un punto seleccionado sobre el canvas. Este es

	 * dibujado como un peque?o cuadrado.

	 *

	 * @author Nacho Brodin (nachobrodin@gmail.com)

	 */

	class Square {

	/**

	 * Lista de cuadrados que intersectan con la recta

	 */

	/**

	 * Constructor. Asigna el color

		addSquare(1.0D, 1.0D);

	}

	public void clearSquares() {

		listSquare.clear();

	}

	public void addSquare(double x, double y) {

		listSquare.add(new Square(x, y));

	}

	 * @param square

	 */

	private void setInfoPoint(int point) {

		if (list.size() > 0) {

			DefaultInfoLayer infoLayer = (DefaultInfoLayer) list.get(0);

			if (point != -1) {

	 * Variable para saber si se ha visualizado alguna informacion

	 */

	boolean last = false;

	public boolean mouseMoved(MouseEvent e) {

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

			if (((Square)listSquare.get(i)).isInside(e.getPoint())) {

		return true;

	}

	public double[] getInValues(double min, double max) {

		double[] in = getPercentInValues(); 

		for (int i = 0; i < in.length; i++)

		return in;

	}

	public int[] getOutValues() {

		double[] values = getPercentOutValues(); 

		int[] out = new int[values.length];

		return out;

	}

	public double[] getPercentInValues() {

		double[] in = new double[listSquare.size() + 2];

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

		return in;

	}

	public double[] getPercentOutValues() {

		double[] out = new double[listSquare.size() + 2];

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

		return (1.0D - ((double) (pixel - canvas.getCanvasMinY() - border) / div));

	}

	public int getFunctionType() {

		return 0;

	}

package org.gvsig.raster.swing.impl.canvas.layer.function;

import java.awt.Graphics;

import org.gvsig.raster.swing.gcanvas.BaseFunction;

import org.gvsig.raster.swing.gcanvas.DrawableElement;

 * Todo algoritmo que queramos que implemente un realce, debe heredar de esta base

 * para poder distinguir los drawables genericos de los algoritmos.

 * 

 */

public abstract class DefaultBaseFunction extends DrawableElement implements BaseFunction {

	protected double      minx       = 0.0D;

		this.maxx = maxx;

	}

	protected void paint(Graphics g) {

		if (elements.size() > 0) {

			DefaultMinMaxLines minMaxLines = (DefaultMinMaxLines) elements.get(0);

			setMinX(minMaxLines.getMinDistance());

import java.awt.Graphics2D;

import java.awt.Stroke;

import java.awt.event.MouseEvent;

import javax.swing.SwingUtilities;

import org.gvsig.raster.swing.gcanvas.MinMaxLines;

import org.gvsig.raster.swing.impl.canvas.DefaultGCanvas;

import org.gvsig.raster.swing.impl.canvas.layer.function.DefaultBaseFunction;

/**

 * Representa dos l?neas rectas que se?alizan el m?ximo y el m?nimo.

 *

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class DefaultMinMaxLines extends MinMaxLines {

	/**

	 * Cuando se ha pinchado un punto y se arrastra se define aqu? su comportamiento.

	 */

	public boolean mouseDragged(MouseEvent e) {

		if (canvas == null)

			return true;

			if (minPos > maxPos)

				maxPos = minPos;

			if (elements.size() > 0) {

				DefaultBaseFunction baseFunction = (DefaultBaseFunction) elements.get(0);

				baseFunction.setMinX(minPos);

import java.awt.event.MouseEvent;

import java.util.ArrayList;

import java.util.Iterator;

import javax.swing.JPanel;

import org.gvsig.raster.swing.impl.canvas.layer.function.DefaultStraightLine;

/**

 * Canvas donde se pintan objetos GLine

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class DefaultGCanvas  extends JPanel implements GCanvas {

	private static final long   serialVersionUID       = 5431466034535083594L;

	private Color               backgroundColor        = Color.WHITE;

                                actionCommandListeners = new ArrayList<IGCanvasListener>();

	public static final int     DEFAULT_CURSOR         = Cursor.DEFAULT_CURSOR;

	private int               borderY1                 = 0;

	private int               borderY2                 = 0;

	                          drawableElements         = new ArrayList<DrawableElement>();

	/**

	 * Invocar a los eventos asociados al componente

	 */

	public void callDataChanged(String key, Object value) {

		while (iterator.hasNext()) {

			IGCanvasListener listener = (IGCanvasListener) iterator.next();

			listener.actionDataChanged(new GCanvasEvent(this, key, value));

	 * Invocar a los eventos asociados al componente

	 */

	public void callDataDragged(String key, Object value) {

		while (iterator.hasNext()) {

			IGCanvasListener listener = (IGCanvasListener) iterator.next();

			listener.actionDataDragged(new GCanvasEvent(this, key, value));

	 * @param element

	 * @param c1

	 */

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

			if (cl.isInstance(drawableElements.get(i))) {

				drawableElements.set(i, element);

	 * @param c1

	 * @return ArrayList de DrawableElements

	 */

		ArrayList<DrawableElement> elements = new ArrayList<DrawableElement>();

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

			if (c1.isInstance(drawableElements.get(i)))

	 * Elimina un elemento dibujable

	 * @param Class clase del elemento a eliminar

	 */

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

			if (cl.isInstance(drawableElements.get(i)))

				drawableElements.remove(i);

	 * Asigna una lista de elementos dibujables

	 * @return

	 */

		drawableElements.clear();

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

			if (list.get(i) instanceof DrawableElement)

	 * Inicializa el fondo y dibuja el gr?fico sobre el canvas.

	 */

	public void paint(Graphics g) {

		g.setColor(backgroundColor);

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

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

		return getHeight() - (borderY1 + borderY2);

	}

	public void mousePressed(MouseEvent e) {

		for (int i = drawableElements.size() - 1; i >= 0 ; i--)

			if (!((DrawableElement) drawableElements.get(i)).mousePressed(e))

				return;

	}

	public void mouseReleased(MouseEvent e) {

		for (int i = drawableElements.size() - 1; i >= 0 ; i--)

			if (!((DrawableElement) drawableElements.get(i)).mouseReleased(e))

		this.mouseMoved(e);

	}

	public void mouseDragged(MouseEvent e) {

		for (int i = drawableElements.size() - 1; i >= 0 ; i--)

			if (!((DrawableElement) drawableElements.get(i)).mouseDragged(e))

				return;

	}

	public void mouseMoved(MouseEvent e) {

		for (int i = drawableElements.size() - 1; i >= 0 ; i--)

			if (!((DrawableElement) drawableElements.get(i)).mouseMoved(e))

		setCursor(new Cursor(Cursor.DEFAULT_CURSOR));

	}

	public void mouseEntered(MouseEvent e) {

		hasMouse = true;

		repaint();

				return;

	}

	public void mouseExited(MouseEvent e) {

		hasMouse = false;

		repaint();

	public void mouseClicked(MouseEvent e) {}

	public DrawableElement createBorderLayerForGCanvas(Color color) {

		return new Border(color);

	}

	public InfoLayer createInfoLayerForGCanvas(Color colorLayer) {

		return new DefaultInfoLayer(colorLayer);

	}

	public GraphicHistogram createHistogramForGCanvas(double[] data, Color color) {

		return new DefaultGraphicHistogram(data, color);

	}

	public MinMaxLines createMinMaxLinesForGCanvas(Color color) {

		return new DefaultMinMaxLines(color);

	}

	public StraightLine createStraightLineForGCanvas(Color color) {

		return new DefaultStraightLine(color);

	}

    public LogaritmicExponentialLine createLogaritmicExponentialLineForGCanvas(Color color, double point) {

    	return new DefaultLogaritmicExponentialLine(color, point);

    }

    public SquareRootPowLine createSquareRootPowLineForGCanvas(Color color, double point) {

    	return new DefaultSquareRootPowLine(color, point);

    }

    public DensitySlicingLine createDensitySliceForGCanvas(Color color, int levels) {

    	return new DefaultDensitySlicingLine(color, levels);

    }