root / trunk / libraries / libUIComponent / src / org / gvsig / gui / beans / colorslideredition / ColorSliderEdition.java @ 12898
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*/
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package org.gvsig.gui.beans.colorslideredition; |
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import java.awt.Color; |
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import java.awt.Cursor; |
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import java.awt.Dimension; |
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import java.awt.Graphics; |
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import java.awt.Image; |
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import java.awt.Polygon; |
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import java.awt.Shape; |
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import java.awt.event.MouseEvent; |
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import java.awt.event.MouseListener; |
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import java.awt.event.MouseMotionListener; |
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import java.util.ArrayList; |
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import javax.swing.JComponent; |
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/**
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* <code>DoubleSlider</code> representa un componente que tiene dos
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* deslizadores. Se puede definir un m?ximo y un m?nimo.
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*
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* @version 04/05/2007
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* @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)
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*/
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public class ColorSliderEdition extends JComponent implements MouseListener, MouseMotionListener { |
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private static final long serialVersionUID = 663355422780987493L; |
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private final int LEFT_PAD = 3; |
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private final int RIGHT_PAD = 3; |
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private Image bufferImage = null; |
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private int width = 0; |
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private int height = 0; |
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private Graphics bufferGraphics; |
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private ArrayList items = new ArrayList(); |
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private boolean interpolated = false; |
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/**
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* Crea un DoubleSlider con las opciones por defecto.
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*/
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public ColorSliderEdition() {
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this.setPreferredSize(new Dimension(100, 21)); |
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// items.add(new ItemColorSlider(0, Color.black));
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// items.add(new ItemColorSlider(100, new Color(0, 0, 0, 0)));
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items.add(new ItemColorSlider(0, Color.black)); |
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items.add(new ItemColorSlider(25, Color.red)); |
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items.add(new ItemColorSlider(50, Color.green)); |
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items.add(new ItemColorSlider(75, Color.blue)); |
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items.add(new ItemColorSlider(100, Color.white)); |
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addMouseListener(this);
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addMouseMotionListener(this);
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} |
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/*
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* (non-Javadoc)
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* @see javax.swing.JComponent#addNotify()
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*/
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public void addNotify() { |
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super.addNotify();
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refreshImage(); |
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} |
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/**
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* Devuelve un color de interpolacion entre dos colores
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* @param value
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* @param pos
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* @return
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*/
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private Color interpolatedColor(ArrayList newItems, double value, int pos) { |
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if (newItems.size() <= 0) |
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return Color.black; |
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if ((pos + 1) == newItems.size()) |
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return ((ItemColorSlider) newItems.get(pos)).getColor();
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if (value <= ((ItemColorSlider) newItems.get(0)).getValue()) |
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return ((ItemColorSlider) newItems.get(0)).getColor(); |
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ItemColorSlider item1 = (ItemColorSlider) newItems.get(pos); |
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ItemColorSlider item2 = (ItemColorSlider) newItems.get(pos + 1);
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double percValue = ((value - item1.getValue()) * 100) / (item2.getValue() - item1.getValue()); |
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Color halfColor = new Color( |
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(item2.getColor().getRed() + item1.getColor().getRed()) >> 1,
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(item2.getColor().getGreen() + item1.getColor().getGreen()) >> 1,
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(item2.getColor().getBlue() + item1.getColor().getBlue()) >> 1,
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(item2.getColor().getAlpha() + item1.getColor().getAlpha()) >> 1);
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Color color1, color2;
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double perc1, perc2;
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if (percValue > item2.getInterpolated()) {
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color1 = halfColor; |
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color2 = item2.getColor(); |
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perc1 = item2.getInterpolated(); |
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perc2 = 100;
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} else {
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color1 = item1.getColor(); |
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color2 = halfColor; |
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perc1 = 0;
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perc2 = item2.getInterpolated(); |
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} |
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double percNew = (percValue - perc1) / (perc2 - perc1);
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Color newColor = new Color( |
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(int) (color1.getRed() + ((color2.getRed() - color1.getRed()) * percNew)) & 0xff, |
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(int) (color1.getGreen() + ((color2.getGreen() - color1.getGreen()) * percNew)) & 0xff, |
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(int) (color1.getBlue() + ((color2.getBlue() - color1.getBlue()) * percNew)) & 0xff, |
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(int) (color1.getAlpha() + ((color2.getAlpha() - color1.getAlpha()) * percNew)) & 0xff); |
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return newColor;
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} |
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/**
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* Crea un graphics con las dimensiones del componente si no estaba creado y
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* lo devuelve para poder usarlo para dibujar en ?l.
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* @return Graphics
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*/
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private Graphics getBufferGraphics() { |
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int width2 = getBounds().width;
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int height2 = getBounds().height;
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if (width2 <= 0) |
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width2 = 1;
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if (height2 <= 0) |
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height2 = 1;
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if ((width!=width2) || (height!=height2)) {
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bufferImage = createImage(width2, height2); |
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if (bufferImage == null) return null; |
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bufferGraphics = bufferImage.getGraphics(); |
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} |
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width = width2; |
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height = height2; |
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return bufferGraphics;
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} |
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private void sortItems() { |
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for (int i = 0; i < items.size(); i++) { |
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for (int j = i + 1; j < items.size(); j++) { |
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if (((ItemColorSlider) items.get(j)).getValue() < ((ItemColorSlider) items.get(i)).getValue()) {
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Object aux = items.get(i);
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items.set(i, items.get(j)); |
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items.set(j, aux); |
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} |
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} |
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} |
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} |
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private int getPosForValue(double value, ArrayList newArray) { |
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int pos = 0; |
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for (int j = 1; j <= newArray.size(); j++) { |
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if (j < newArray.size()) {
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if (value < ((ItemColorSlider) newArray.get(j)).getValue()) {
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pos = j - 1;
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break;
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} |
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} else {
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pos = j - 1;
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break;
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} |
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} |
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return pos;
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} |
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/**
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* Redibujar el componente en el graphics temporal
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*/
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private void redrawBuffer() { |
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if (getBufferGraphics() == null) return; |
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sortItems(); |
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getBufferGraphics().setColor(this.getBackground());
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getBufferGraphics().fillRect(0,0,width,height); |
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getBufferGraphics().setColor(Color.black);
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getBufferGraphics().drawRect(LEFT_PAD, 0, width - 1 - LEFT_PAD - RIGHT_PAD, height - 18); |
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Shape oldClip = getBufferGraphics().getClip();
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getBufferGraphics().setClip(LEFT_PAD + 2, 2, width - 4 - LEFT_PAD - RIGHT_PAD, height - 21); |
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for (int i = 0; (i * 4 + 2) <= (width - 3 - LEFT_PAD - RIGHT_PAD); i++) { |
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for (int j = 0; (j * 4 + 2) <= (height - 20); j++) { |
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if ((i + j) % 2 == 0) |
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getBufferGraphics().setColor(Color.white);
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else
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getBufferGraphics().setColor(new Color(204, 204, 204)); |
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getBufferGraphics().fillRect(i * 4 + 2 + LEFT_PAD, j * 4 + 2, 4, 4); |
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} |
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} |
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ArrayList newArray = (ArrayList) items.clone(); |
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for (int i = newArray.size() - 1; i>=0; i--) { |
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if (((ItemColorSlider) newArray.get(i)).isVisible() == false) |
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newArray.remove(i); |
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} |
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for (int i = LEFT_PAD + 2; i <= width - 2 - RIGHT_PAD; i++) { |
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int pos = getPosForValue(pixelToValue(i), newArray);
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if (isInterpolated()) {
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getBufferGraphics().setColor(interpolatedColor(newArray, pixelToValue(i), pos)); |
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} else {
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if ((pos + 1) < newArray.size()) { |
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double min = ((ItemColorSlider) newArray.get(pos)).getValue();
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double max = ((ItemColorSlider) newArray.get(pos + 1)).getValue(); |
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if ((min + ((max - min) * ((ItemColorSlider) newArray.get(pos + 1)).getInterpolated() / 100)) < pixelToValue(i)) |
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pos++; |
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} |
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getBufferGraphics().setColor(((ItemColorSlider) newArray.get(pos)).getColor()); |
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} |
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getBufferGraphics().drawLine(i, 2, i, height - 18); |
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} |
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getBufferGraphics().setClip(oldClip); |
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boolean paintNext = false; |
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for (int i = 0; i < items.size(); i++) { |
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ItemColorSlider aux = (ItemColorSlider) items.get(i); |
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if (!aux.isVisible())
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continue;
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// Dibujar los deslizadores de la interpolacion
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if (aux.getSelected() != -1) |
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paintNext = true;
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if (paintNext) {
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if (i != 0) { |
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double value = ((ItemColorSlider) items.get(i - 1)).getValue() + ((((ItemColorSlider) items.get(i)).getValue() - ((ItemColorSlider) items.get(i - 1)).getValue()) * ((ItemColorSlider) items.get(i)).getInterpolated() / 100); |
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drawSliderInterpolation(valueToPixel(value), height - 17, aux.getColor(), (aux.getSelected() == 2)); |
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} |
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paintNext = false;
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} |
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if (aux.getSelected() == 1) |
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paintNext = true;
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} |
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for (int i = items.size() - 1; i >=0; i--) { |
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ItemColorSlider aux = (ItemColorSlider) items.get(i); |
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if (!aux.isVisible())
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continue;
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drawSliderColor(valueToPixel(aux.getValue()), height - 17, aux.getColor(), (aux.getSelected() == 1)); |
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} |
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} |
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/**
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* Convierte un porcentaje al valor pixel en X
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* @param value
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* @return
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*/
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private int valueToPixel(double value) { |
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if (value < 0) |
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value = 0;
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if (value > 100) |
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value = 100;
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return (int) (((width - 5 - LEFT_PAD - RIGHT_PAD) * value) / 100) + 2 + LEFT_PAD; |
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} |
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/**
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* Convierte un valor en X en porcentaje
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* @param value
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* @return
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*/
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private double pixelToValue(int value) { |
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double aux = value - LEFT_PAD - 1; |
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return (aux * 100.0f) / (width - LEFT_PAD - RIGHT_PAD - 4.0f); |
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} |
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/**
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* Dibujar un triangulo, un triangulo es un deslizador del componente. Puedes
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* indicarle que color tendra y en que posici?n estar?.
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* @param x
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* @param color
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*/
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private void drawSliderColor(int x, int y, Color color, boolean isSelected) { |
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Polygon p = new Polygon(); |
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p.addPoint(x, y); |
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p.addPoint(x - 5, y + 6); |
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p.addPoint(x - 5, y + 16); |
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p.addPoint(x + 5, y + 16); |
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p.addPoint(x + 5, y + 6); |
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if (!isSelected) {
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getBufferGraphics().setColor(this.getBackground());
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getBufferGraphics().fillPolygon(p); |
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getBufferGraphics().setColor(new Color(172, 168, 153)); |
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getBufferGraphics().drawLine(x + 1, y + 2, x + 4, y + 6); |
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getBufferGraphics().drawLine(x - 4, y + 6, x + 4, y + 6); |
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} |
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else {
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getBufferGraphics().setColor(Color.black);
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getBufferGraphics().fillPolygon(p); |
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} |
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getBufferGraphics().setColor(Color.black);
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getBufferGraphics().drawPolygon(p); |
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getBufferGraphics().setColor(new Color(172, 168, 153)); |
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getBufferGraphics().drawLine(x - 3, y + 15, x + 4, y + 15); |
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getBufferGraphics().drawLine(x + 4, y + 8, x + 4, y + 15); |
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getBufferGraphics().setColor(Color.white);
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getBufferGraphics().drawLine(x - 4, y + 7, x - 4, y + 15); |
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getBufferGraphics().drawLine(x - 4, y + 7, x + 4, y + 7); |
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getBufferGraphics().setColor(new Color(color.getRed(), color.getGreen(), color.getBlue())); |
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getBufferGraphics().fillRect(x - 3, y + 8, 7, 7); |
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} |
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/**
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* Dibujar un triangulo, un triangulo es un deslizador del componente. Puedes
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* indicarle que color tendra y en que posici?n estar?.
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* @param x
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* @param color
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*/
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private void drawSliderInterpolation(int x, int y, Color color, boolean isSelected) { |
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Polygon p = new Polygon(); |
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p.addPoint(x, y); |
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p.addPoint(x - 3, y + 3); |
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p.addPoint(x, y + 6);
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p.addPoint(x + 3, y + 3); |
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if (isSelected)
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getBufferGraphics().setColor(new Color(color.getRed(), color.getGreen(), color.getBlue())); |
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else
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getBufferGraphics().setColor(this.getBackground());
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getBufferGraphics().fillPolygon(p); |
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getBufferGraphics().setColor(Color.black);
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getBufferGraphics().drawPolygon(p); |
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} |
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/**
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* Redibujar el componente en el graphics temporal y representarlo en el
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* componente
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*/
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private void refreshImage() { |
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redrawBuffer(); |
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if (bufferImage != null) |
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getGraphics().drawImage(bufferImage, 0, 0, this); |
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super.paint(getGraphics());
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} |
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/*
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* (non-Javadoc)
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* @see javax.swing.JComponent#paint(java.awt.Graphics)
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*/
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public void paint(Graphics g) { |
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redrawBuffer(); |
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g.drawImage(bufferImage, 0, 0, this); |
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super.paint(g);
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} |
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/*
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* (non-Javadoc)
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* @see java.awt.event.MouseListener#mousePressed(java.awt.event.MouseEvent)
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*/
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public void mousePressed(MouseEvent e) { |
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int onmask = MouseEvent.BUTTON1_DOWN_MASK; |
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if ((e.getModifiersEx() & onmask) != onmask)
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return;
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onmask = MouseEvent.ALT_DOWN_MASK;
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boolean newItem = false; |
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if ((e.getModifiersEx() & onmask) == onmask)
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newItem = true;
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if ((e.getY() > height) || (e.getY() < (height - 18))) { |
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clearSelected(); |
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refreshImage(); |
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return;
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} |
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int type = 1; |
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ItemColorSlider itemSelected = getItem(e.getX(), e.getY()); |
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if ((itemSelected == null) || (newItem)) { |
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itemSelected = getItemInterpolated(e.getX(), e.getY()); |
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if ((itemSelected == null) || (newItem)) { |
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int pos = getPosForValue(pixelToValue(e.getX()), items);
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Color newColor = interpolatedColor(items, pixelToValue(e.getX()), pos);
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itemSelected = new ItemColorSlider(pixelToValue(e.getX()), newColor);
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items.add(itemSelected); |
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} else {
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type = 2;
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} |
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} |
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setItemSelected(itemSelected, type); |
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refreshImage(); |
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} |
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private void clearSelected() { |
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for (int i = items.size() - 1; i >= 0; i--) |
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((ItemColorSlider) items.get(i)).setSelected(-1);
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} |
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private void setItemSelected(ItemColorSlider aux, int type) { |
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clearSelected(); |
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aux.setSelected(type); |
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} |
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/*
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* (non-Javadoc)
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* @see java.awt.event.MouseListener#mouseReleased(java.awt.event.MouseEvent)
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*/
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public void mouseReleased(MouseEvent e) { |
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for (int i = items.size() - 1; i >= 0; i--) { |
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if (items.size() <= 2) |
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return;
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if (((ItemColorSlider) items.get(i)).isVisible() == false) |
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items.remove(i); |
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} |
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} |
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public ItemColorSlider getSelectedItem() {
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for (int i = 0; i < items.size(); i++) { |
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if (((ItemColorSlider) items.get(i)).getSelected() != -1) |
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return (ItemColorSlider) items.get(i);
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} |
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return null; |
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} |
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/*
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* (non-Javadoc)
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* @see java.awt.event.MouseMotionListener#mouseDragged(java.awt.event.MouseEvent)
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*/
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public void mouseDragged(MouseEvent e) { |
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ItemColorSlider aux = getSelectedItem(); |
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if (aux != null) { |
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if (aux.getSelected() == 1) { |
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aux.setValue(pixelToValue(e.getX())); |
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refreshImage(); |
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setMouseCursor(e.getX(), e.getY()); |
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aux.setVisible((e.getY() <= height) && (e.getY() >= 0) || items.size() <= 2); |
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return;
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} |
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if (aux.getSelected() == 2) { |
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int pos = -1; |
| 461 |
for (int i = 0; i < items.size(); i++) { |
| 462 |
if (items.get(i) == aux)
|
| 463 |
pos = i; |
| 464 |
} |
| 465 |
if (pos > 0) { |
| 466 |
double min = ((ItemColorSlider) items.get(pos - 1)).getValue(); |
| 467 |
double max = ((ItemColorSlider) items.get(pos)).getValue();
|
| 468 |
|
| 469 |
double newValue = 100 * (pixelToValue(e.getX()) - min) / (max - min); |
| 470 |
|
| 471 |
aux.setInterpolated(newValue); |
| 472 |
refreshImage(); |
| 473 |
setMouseCursor(e.getX(), e.getY()); |
| 474 |
} |
| 475 |
return;
|
| 476 |
} |
| 477 |
} |
| 478 |
} |
| 479 |
|
| 480 |
private ItemColorSlider getItem(int x, int y) { |
| 481 |
for (int i = 0; i < items.size(); i++) { |
| 482 |
if ((x >= (valueToPixel(((ItemColorSlider) items.get(i)).getValue()) - 5)) && |
| 483 |
(x <= (valueToPixel(((ItemColorSlider) items.get(i)).getValue()) + 5)) &&
|
| 484 |
(y <= height) && |
| 485 |
(y >= (height - 18))) {
|
| 486 |
return (ItemColorSlider) items.get(i);
|
| 487 |
} |
| 488 |
} |
| 489 |
return null; |
| 490 |
} |
| 491 |
|
| 492 |
private ItemColorSlider getItemInterpolated(int x, int y) { |
| 493 |
for (int i = 1; i < items.size(); i++) { |
| 494 |
int value = valueToPixel(((ItemColorSlider) items.get(i - 1)).getValue() + ((((ItemColorSlider) items.get(i)).getValue() - ((ItemColorSlider) items.get(i - 1)).getValue()) * ((ItemColorSlider) items.get(i)).getInterpolated() / 100)); |
| 495 |
|
| 496 |
if ((x >= value - 3) && |
| 497 |
(x <= value + 3) &&
|
| 498 |
(y <= (height - 11)) &&
|
| 499 |
(y >= (height - 18))) {
|
| 500 |
if (((ItemColorSlider) items.get(i)).getSelected() != -1) |
| 501 |
return (ItemColorSlider) items.get(i);
|
| 502 |
if (((ItemColorSlider) items.get(i - 1)).getSelected() == 1) |
| 503 |
return (ItemColorSlider) items.get(i);
|
| 504 |
} |
| 505 |
} |
| 506 |
return null; |
| 507 |
} |
| 508 |
|
| 509 |
private void setMouseCursor(int x, int y) { |
| 510 |
if (getItem(x, y) != null) { |
| 511 |
setCursor(new Cursor(Cursor.E_RESIZE_CURSOR)); |
| 512 |
return;
|
| 513 |
} |
| 514 |
if (getItemInterpolated(x, y) != null) { |
| 515 |
setCursor(new Cursor(Cursor.E_RESIZE_CURSOR)); |
| 516 |
return;
|
| 517 |
} |
| 518 |
if ((y <= height) && (y >= (height - 18))) { |
| 519 |
setCursor(new Cursor(Cursor.HAND_CURSOR)); |
| 520 |
return;
|
| 521 |
} |
| 522 |
setCursor(new Cursor(Cursor.DEFAULT_CURSOR)); |
| 523 |
return;
|
| 524 |
} |
| 525 |
|
| 526 |
/*
|
| 527 |
* (non-Javadoc)
|
| 528 |
* @see java.awt.event.MouseMotionListener#mouseMoved(java.awt.event.MouseEvent)
|
| 529 |
*/
|
| 530 |
public void mouseMoved(MouseEvent e) { |
| 531 |
setMouseCursor(e.getX(), e.getY()); |
| 532 |
} |
| 533 |
|
| 534 |
/**
|
| 535 |
* @return the interpolated
|
| 536 |
*/
|
| 537 |
public boolean isInterpolated() { |
| 538 |
return interpolated;
|
| 539 |
} |
| 540 |
|
| 541 |
/**
|
| 542 |
* @param interpolated the interpolated to set
|
| 543 |
*/
|
| 544 |
public void setInterpolated(boolean interpolated) { |
| 545 |
this.interpolated = interpolated;
|
| 546 |
refreshImage(); |
| 547 |
} |
| 548 |
|
| 549 |
public void mouseClicked(MouseEvent e) {} |
| 550 |
public void mouseEntered(MouseEvent e) {} |
| 551 |
public void mouseExited(MouseEvent e) {} |
| 552 |
} |