svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.ui / src / main / java / org / gvsig / gui / beans / slidertext / SliderTextContainer.java @ 40561
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.gui.beans.slidertext; |
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import java.awt.BorderLayout; |
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import java.awt.Dimension; |
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import java.awt.GridBagConstraints; |
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import java.awt.GridBagLayout; |
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import java.awt.event.FocusEvent; |
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import java.awt.event.FocusListener; |
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import java.awt.event.KeyEvent; |
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import java.awt.event.KeyListener; |
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import java.awt.event.MouseEvent; |
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import java.awt.event.MouseListener; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import javax.swing.BorderFactory; |
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import javax.swing.JPanel; |
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import javax.swing.JSlider; |
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import javax.swing.JTextField; |
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import javax.swing.border.TitledBorder; |
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import javax.swing.event.ChangeEvent; |
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import javax.swing.event.ChangeListener; |
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import org.gvsig.gui.beans.slidertext.listeners.SliderEvent; |
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import org.gvsig.gui.beans.slidertext.listeners.SliderListener; |
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/**
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* Barra de deslizamiento con una ventana de texto que tiene el valor de la
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* posici?n de la barra. En este control podr? controlarse mediante la entrada
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* de datos por la caja de texto la posibilidad de introducir valores decimales.
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*
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* Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class SliderTextContainer extends JPanel implements ChangeListener, FocusListener, KeyListener, MouseListener { |
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private static final long serialVersionUID = 1876415954410511634L; |
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private ArrayList<SliderListener> actionCommandListeners = new ArrayList<SliderListener>(); |
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private JPanel pText = null; |
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private JSlider slider = null; |
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private JTextField text = null; |
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private int min = 0; |
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private int max = 255; |
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private double interval = 1.0; |
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private int defaultPos = 0; |
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private boolean decimal = false; |
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private boolean disconnectEvent = false; |
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private boolean dragged = false; |
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private boolean showBorder = false; |
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/**
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* Contructor
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* @param min Valor m?nimo de la barra
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* @param max Valor m?ximo de la barra
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* @param defaultPos Posici?n por defecto
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* @deprecated Es recomendable el uso del constructor con el par?metro border. Tiene la misma funcionalidad
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* si se pone ese par?metro a true. Se mantiene este constructor por compatibilidad con versiones
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* anteriores.
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*/
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public SliderTextContainer(int min, int max, int defaultPos) { |
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this(min, max, defaultPos, false); |
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} |
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/**
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* Contructor
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* @param min Valor m?nimo de la barra
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* @param max Valor m?ximo de la barra
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* @param defaultPos Posici?n por defecto
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* @param border Flag que obliga a mostrar u ocultar el borde
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*/
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public SliderTextContainer(int min, int max, int defaultPos, boolean border) { |
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super();
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this.min = min;
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this.max = max;
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this.defaultPos = defaultPos;
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this.showBorder = border;
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initialize(); |
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} |
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/**
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* Constructor vacio
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*/
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public SliderTextContainer() {
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this(0, 100, 0); |
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} |
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/**
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* Dispara el evento del cambio del control
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*/
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protected void callChangeValue(boolean forceEvent) { |
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if (!getSlider().isEnabled() && !forceEvent)
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return;
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Iterator<SliderListener> acIterator = actionCommandListeners.iterator();
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while (acIterator.hasNext()) {
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SliderListener listener = (SliderListener) acIterator.next(); |
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listener.actionValueChanged(new SliderEvent(this)); |
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} |
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} |
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/**
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* Dispara el evento del cambio del control
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*/
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protected void callDraggedValue() { |
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Iterator<SliderListener> acIterator = actionCommandListeners.iterator();
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while (acIterator.hasNext()) {
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SliderListener listener = (SliderListener) acIterator.next(); |
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listener.actionValueDragged(new SliderEvent(this)); |
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} |
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} |
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/**
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* A?adir un listener a la lista de eventos
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* @param listener
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*/
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public void addValueChangedListener(SliderListener listener) { |
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if (!actionCommandListeners.contains(listener))
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actionCommandListeners.add(listener); |
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} |
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/**
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* Borrar un listener de la lista de eventos
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* @param listener
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*/
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public void removeValueChangedListener(SliderListener listener) { |
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actionCommandListeners.remove(listener); |
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} |
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/**
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* Asigna un borde al componente con el texto pasado como
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* par?metro
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* @param name
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*/
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public void setBorder(String name){ |
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setBorder(BorderFactory.createTitledBorder(null, name, TitledBorder.DEFAULT_JUSTIFICATION, TitledBorder.DEFAULT_POSITION, null, null)); |
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} |
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/**
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* This method initializes this
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*
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*/
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private void initialize() { |
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this.setLayout(new BorderLayout()); |
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this.add(getSlider(), BorderLayout.CENTER); |
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this.add(getPText(), BorderLayout.EAST); |
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if(showBorder)
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this.setBorder(BorderFactory.createLineBorder(java.awt.Color.gray,1)); |
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} |
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/**
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* This method initializes jPanel1
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*
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* @return javax.swing.JPanel
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*/
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private JPanel getPText() { |
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if (pText == null) { |
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pText = new JPanel(); |
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GridBagConstraints gridBagConstraints1 = new GridBagConstraints(); |
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gridBagConstraints1.insets = new java.awt.Insets(0, 10, 8, 0); |
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pText.setLayout(new GridBagLayout()); |
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pText.add(getTextField(), gridBagConstraints1); |
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} |
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return pText;
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} |
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/**
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* This method initializes jSlider
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*
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* @return javax.swing.JSlider
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*/
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public JSlider getSlider() { |
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if (slider == null) { |
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slider = new JSlider(); |
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slider.setMinimum(0);
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slider.setMaximum((int) ((max - min) / interval));
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slider.setValue((int) ((defaultPos - min) / interval));
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updateTicks(); |
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slider.addChangeListener(this);
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slider.addMouseListener(this);
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} |
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return slider;
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} |
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/**
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* This method initializes jTextField
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*
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* @return javax.swing.JTextField
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*/
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public JTextField getTextField() { |
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if (text == null) { |
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text = new JTextField(); |
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text.setText(defaultPos + "");
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text.setPreferredSize(new Dimension(40, 26)); |
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text.setMinimumSize(new Dimension(40, 26)); |
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text.addFocusListener(this);
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text.addKeyListener(this);
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} |
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return text;
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} |
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public void setComponentSize(int w, int h){ |
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} |
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/**
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* Obtiene el valor del control.
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* @return Valor del control en formato double.
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*/
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public double getValue() { |
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return new Double(getTextField().getText()).doubleValue(); |
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} |
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/**
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* Asigna el valor del control.
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* @return Valor del control en formato double.
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*/
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public void setValue(double value){ |
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if(decimal)
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getTextField().setText(String.valueOf(value));
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else
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getTextField().setText(String.valueOf((int)value)); |
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getSlider().setValue((int) ((value - min) / interval));
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} |
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/**
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* Activa o desactiva el control del panel
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* @param active
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*/
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public void setControlEnabled(boolean active){ |
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getSlider().setEnabled(active); |
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getTextField().setEnabled(active); |
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if (active == false) { |
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getTextField().setBackground(pText.getBackground()); |
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} else {
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getTextField().setBackground(java.awt.Color.white); |
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} |
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} |
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/**
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* Asigna el flag que dice si el valor del campo de texto ser?
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* decimal o entero
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* @param dec true si se admiten valores decimales y false si no se admiten
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*/
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public void setDecimal (boolean dec){ |
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decimal = dec; |
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String s = getTextField().getText();
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if(dec)
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getTextField().setText((s +".0"));
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else{
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int index = s.lastIndexOf("."); |
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if(index == -1 || index == 0) |
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index = s.length() - 1;
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getTextField().setText(s.substring(0, index + 1)); |
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} |
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} |
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/**
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* Obtiene el flag que dice si el valor del campo de texto es
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* decimal o entero
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* @return true si se admiten valores decimales y false si no se admiten
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*/
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public boolean getDecimal (){ |
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return decimal;
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} |
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/**
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* Obtiene el valor m?ximo del slider
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* @return Entero con el valor m?ximo
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*/
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public int getMax() { |
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return max;
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} |
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/**
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* Asigna el valor m?ximo del slider
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* @param Entero con el valor m?ximo
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* @deprecated Usar setMaximum en su lugar
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*/
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public void setMax(int max) { |
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this.setMaximum(max);
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} |
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/**
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* Asigna el valor m?ximo del slider
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* @param Entero con el valor m?ximo
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*/
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public void setMaximum(int max) { |
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this.max = max;
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updateInterval(); |
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} |
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/**
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* Obtiene el valor m?nimo del slider
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* @return Entero con el valor m?nimo
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*/
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public int getMin() { |
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return min;
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} |
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/**
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* Asigna el valor m?nimo del slider
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* @param Entero con el valor m?nimo
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* @deprecated Usar setMinimum
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*/
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public void setMin(int min) { |
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this.setMinimum(min);
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} |
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/**
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* Asigna el valor m?nimo del slider
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* @param Entero con el valor m?nimo
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*/
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public void setMinimum(int min) { |
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this.min = min;
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updateInterval(); |
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} |
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/**
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* Actualizar la separacion entre los Ticks
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*/
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private void updateTicks() { |
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int ticks = (int) ((max-min)/interval) / 40; |
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getSlider().setMajorTickSpacing(ticks * 4);
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slider.setPaintTicks(true);
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getSlider().setMinorTickSpacing(ticks); |
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} |
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private void updateInterval() { |
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double aux = this.getValue(); |
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getSlider().setMinimum(0);
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getSlider().setMaximum((int) ((max - min) / interval));
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setValue(aux); |
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updateTicks(); |
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} |
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/**
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* Definir un intervalo para el slider
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* @param value
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*/
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public void setInterval(double value) { |
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interval = value; |
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updateInterval(); |
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} |
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/**
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* Obtener el intervalo definido para el slider
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* @return
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*/
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public double getInterval() { |
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return interval;
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} |
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/**
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* Controla que si el formato introducido en el textfield es numerico. Si lo
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* es se actualiza la posici?n del slider
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*/
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private void checkDecimalTextAndUpdateSlider() { |
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String text = getTextField().getText();
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double value = 0; |
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disconnectEvent = true;
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try {
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if (!text.equals("")) { |
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value = (Double.parseDouble(text) * 100) / (double) (getMax() - getMin()); |
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value = Double.valueOf(text).doubleValue();
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if (value < getMin())
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value = getMin(); |
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if (value > getMax())
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value = getMax(); |
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} |
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setValue(value); |
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callChangeValue(true);
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} catch (NumberFormatException exc) { |
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setValue(getSlider().getValue()*interval + min); |
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} |
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} |
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/**
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* Control del evento de cambio en la posici?n del slider. Este cambio
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* actualiza el valor de la caja de texto y ejecuta el m?todo stateChanged de
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* los listener registrados.
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*/
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public void stateChanged(ChangeEvent e) { |
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//Modificamos la caja de texto con el valor de la posici?n del slider
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if (!disconnectEvent) {
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double value = (getSlider().getValue() * getInterval()) + getMin();
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if (!getDecimal())
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getTextField().setText(((int) value) + ""); |
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else
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getTextField().setText(((int) (value * 10)) / 10.0 + ""); |
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if (dragged)
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callDraggedValue(); |
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else
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callChangeValue(true);
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} |
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disconnectEvent = false;
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} |
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/*
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* (non-Javadoc)
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* @see java.awt.event.FocusListener#focusLost(java.awt.event.FocusEvent)
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*/
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public void focusLost(FocusEvent e) { |
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checkDecimalTextAndUpdateSlider(); |
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} |
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/*
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* (non-Javadoc)
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* @see java.awt.event.KeyListener#keyReleased(java.awt.event.KeyEvent)
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*/
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public void keyReleased(KeyEvent e) { |
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if (e.getKeyCode() == 10) |
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checkDecimalTextAndUpdateSlider(); |
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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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dragged = true;
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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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dragged = false;
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callChangeValue(false);
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} |
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public void focusGained(FocusEvent e) {} |
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public void keyPressed(KeyEvent e) {} |
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public void keyTyped(KeyEvent e) {} |
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public void mouseClicked(MouseEvent e) {} |
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public void mouseEntered(MouseEvent e) {} |
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public void mouseExited(MouseEvent e) {} |
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} |