root / trunk / libraries / libCq_CMS_praster / src / org / cresques / ui / raster / RGBInputPanel.java @ 8026
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package org.cresques.ui.raster; |
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import java.awt.Color; |
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import java.awt.FlowLayout; |
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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.io.IOException; |
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import javax.swing.JLabel; |
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import javax.swing.JPanel; |
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import javax.swing.JTextField; |
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/**
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* Panel con los 3 campos para introducir listas de valores RGB. Este
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* gestiona los eventos de FocusListener para validar que los valores
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* que se introducen son correctos. Si el TextField pierde el foco y
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* tiene un valor incorrecto resetea el contenido.
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*
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* Los m?todos publicos getRangeXXX devuelven el intervalo de valores
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* en forma de array multidimensional de 2xN elementos. Cada pareja de
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* valores es un rango de color en ese valor de pixel. Un rango de valores
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* podria ser por ejemplo {{1,3},{15,30},{200, 255}}
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*
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* @author Nacho Brodin (brodin_ign@gva.es)
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*
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*/
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public class RGBInputPanel extends JPanel implements FocusListener{ |
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private JPanel pRed = null; |
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private JPanel pGreen = null; |
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private JPanel pBlue = null; |
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private JLabel lRed = null; |
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private JLabel lGreen = null; |
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private JLabel lBlue = null; |
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private JTextFieldExt tRed = null; |
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private JTextFieldExt tGreen = null; |
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private JTextFieldExt tBlue = null; |
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private int[] rangeRed = null; |
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private int[] rangeGreen = null; |
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private int[] rangeBlue = null; |
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private boolean validValue = false; |
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/**
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* Componente JTextField que se pone con el color de fondo cuando
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* est? desactivado y blanco cuando est? activo.
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* @author Nacho Brodin (brodin_ign@gva.es)
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*/
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public class JTextFieldExt extends JTextField { |
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final private static long serialVersionUID = -3370601314380922368L; |
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private Color color = null; |
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public JTextFieldExt(Color color) { |
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this.color = color;
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} |
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public JTextFieldExt() {
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super();
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} |
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public void setEnabled(boolean enabled) { |
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super.setEnabled(enabled);
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if (!enabled) {
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if (color == null) { |
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this.setBackground(new Color(210, 210, 210)); |
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} else {
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this.setBackground(color);
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} |
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} else {
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this.setBackground(new Color(255, 255, 255)); |
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} |
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} |
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} |
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/**
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* This is the default constructor
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*/
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public RGBInputPanel() {
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super();
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initialize(); |
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} |
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/**
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* This method initializes this
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*
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* @return void
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*/
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private void initialize() { |
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GridBagConstraints gridBagConstraints2 = new GridBagConstraints(); |
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gridBagConstraints2.gridx = 0;
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gridBagConstraints2.gridy = 2;
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GridBagConstraints gridBagConstraints1 = new GridBagConstraints(); |
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gridBagConstraints1.gridx = 0;
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gridBagConstraints1.gridy = 1;
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GridBagConstraints gridBagConstraints = new GridBagConstraints(); |
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gridBagConstraints.gridx = 0;
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gridBagConstraints.gridy = 0;
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this.setLayout(new GridBagLayout()); |
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this.setSize(100, 75); |
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this.setPreferredSize(new java.awt.Dimension(77,60)); |
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this.add(getPRed(), gridBagConstraints);
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this.add(getPGreen(), gridBagConstraints1);
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this.add(getPBlue(), gridBagConstraints2);
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this.getTBlue().addFocusListener(this); |
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this.getTGreen().addFocusListener(this); |
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this.getTRed().addFocusListener(this); |
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} |
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/**
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* This method initializes jPanel
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*
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* @return javax.swing.JPanel
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*/
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private JPanel getPRed() { |
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if (pRed == null) { |
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FlowLayout flowLayout = new FlowLayout(); |
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flowLayout.setHgap(0);
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flowLayout.setAlignment(java.awt.FlowLayout.RIGHT); |
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flowLayout.setVgap(0);
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lRed = new JLabel(); |
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lRed.setText("R :");
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pRed = new JPanel(); |
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pRed.setLayout(flowLayout); |
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pRed.setPreferredSize(new java.awt.Dimension(100,25)); |
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pRed.add(lRed, null);
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pRed.add(getTRed(), null);
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} |
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return pRed;
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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 getPGreen() { |
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if (pGreen == null) { |
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FlowLayout flowLayout1 = new FlowLayout(); |
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flowLayout1.setHgap(0);
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flowLayout1.setAlignment(java.awt.FlowLayout.RIGHT); |
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flowLayout1.setVgap(0);
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lGreen = new JLabel(); |
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lGreen.setText("G :");
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pGreen = new JPanel(); |
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pGreen.setLayout(flowLayout1); |
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pGreen.setPreferredSize(new java.awt.Dimension(100,25)); |
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pGreen.add(lGreen, null);
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pGreen.add(getTGreen(), null);
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} |
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return pGreen;
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} |
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/**
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* This method initializes jPanel2
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*
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* @return javax.swing.JPanel
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*/
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private JPanel getPBlue() { |
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if (pBlue == null) { |
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FlowLayout flowLayout2 = new FlowLayout(); |
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flowLayout2.setHgap(0);
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flowLayout2.setAlignment(java.awt.FlowLayout.RIGHT); |
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flowLayout2.setVgap(0);
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lBlue = new JLabel(); |
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lBlue.setText("B :");
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pBlue = new JPanel(); |
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pBlue.setLayout(flowLayout2); |
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pBlue.setPreferredSize(new java.awt.Dimension(100,25)); |
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pBlue.add(lBlue, null);
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pBlue.add(getTBlue(), null);
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} |
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return pBlue;
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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 getTRed() { |
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if (tRed == null) { |
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tRed = new JTextFieldExt();
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tRed.setPreferredSize(new java.awt.Dimension(60,20)); |
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} |
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return tRed;
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} |
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/**
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* This method initializes jTextField1
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*
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* @return javax.swing.JTextField
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*/
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public JTextField getTGreen() { |
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if (tGreen == null) { |
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tGreen = new JTextFieldExt();
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tGreen.setPreferredSize(new java.awt.Dimension(60,20)); |
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} |
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return tGreen;
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} |
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/**
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* This method initializes jTextField2
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*
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* @return javax.swing.JTextField
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*/
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public JTextField getTBlue() { |
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if (tBlue == null) { |
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tBlue = new JTextFieldExt();
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tBlue.setPreferredSize(new java.awt.Dimension(60,20)); |
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} |
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return tBlue;
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} |
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public void focusGained(FocusEvent e) { |
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// TODO Auto-generated method stub
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} |
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/**
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* Obtiene el rango de valores a partir de la cadena de texto introducida por el usuario.
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* Sirve para parsear el contenido de los campos de texto que contienen listas
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* de valores para RGB.
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* @param values
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*/
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public static int[] stringToInterval(String values) throws IOException { |
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int[] rangeTransparency = new int[2]; |
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boolean dots = false; |
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for (int i = 0; i < values.length(); i++){ |
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char c = values.charAt(i);
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if(c != ':' && (c < 48 || c > 57)) |
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throw new IOException("Caracteres incorrectos en la cadena."); |
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if(c == ':' && dots) |
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throw new IOException("Se repite el caracter :."); |
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if(c == ':' && !dots) |
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dots = true;
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if(c == ':' && (i == 0 || i == (values.length() - 1))) |
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throw new IOException("No puede comenzar ni acabar por :."); |
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} |
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if(dots){
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String[] interv = values.split(":"); |
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int val1 = Integer.parseInt(interv[0]); |
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int val2 = Integer.parseInt(interv[1]); |
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if(val1 > 255 || val2 > 255) |
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throw new IOException("Valor de pixel erroneo."); |
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else{
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if(val1 < val2){
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rangeTransparency[0] = val1;
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rangeTransparency[1] = val2;
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}else{
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rangeTransparency[0] = val2;
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rangeTransparency[1] = val1;
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} |
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return rangeTransparency;
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} |
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}else{
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rangeTransparency[0] = rangeTransparency[1] = Integer.parseInt(values); |
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if(rangeTransparency[0] > 255) |
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throw new IOException("Valor de pixel erroneo."); |
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return rangeTransparency;
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} |
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} |
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public void focusLost(FocusEvent e) { |
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validValue = true;
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rangeRed = null;
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rangeGreen = null;
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rangeBlue = null;
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if (!getTRed().getText().equals("")) { |
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try {
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rangeRed = RGBInputPanel.stringToInterval(getTRed().getText()); |
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} catch (IOException exc) { |
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exc.printStackTrace(); |
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getTRed().setText("");
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validValue = false;
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} |
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} |
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if (!getTGreen().getText().equals("")) { |
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try {
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rangeGreen = RGBInputPanel.stringToInterval(getTGreen().getText()); |
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} catch (IOException exc) { |
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exc.printStackTrace(); |
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getTGreen().setText("");
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validValue = false;
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} |
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} |
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if (!getTBlue().getText().equals("")) { |
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try {
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rangeBlue = RGBInputPanel.stringToInterval(getTBlue().getText()); |
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} catch (IOException exc) { |
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exc.printStackTrace(); |
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getTBlue().setText("");
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validValue = false;
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} |
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} |
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} |
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/**
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* Obtiene la lista de valores del campo Blue.
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* @return array multidimensional con los intervalos
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*/
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public int[] getRangeBlue() { |
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return rangeBlue;
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} |
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/**
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* Obtiene la lista de valores del campo Green.
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* @return array multidimensional con los intervalos
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*/
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public int[] getRangeGreen() { |
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return rangeGreen;
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} |
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/**
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* Obtiene la lista de valores del campo Red.
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* @return array multidimensional con los intervalos
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*/
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public int[] getRangeRed() { |
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return rangeRed;
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} |
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/**
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* Obtiene true si los valores de RGB que han introducido son
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* validos y false si no lo son.
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* @return
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*/
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public boolean isValidValue() { |
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return validValue;
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} |
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/**
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* Activa o desactiva el control
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* @param enable True activa el control y false lo desactiva
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*/
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public void setControlEnabled(boolean enabled){ |
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getTRed().setEnabled(enabled); |
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getTGreen().setEnabled(enabled); |
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getTBlue().setEnabled(enabled); |
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} |
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/**
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* Asigna el n?mero de bandas activas
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* @param n N?mero de bandas
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*/
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public void setActiveBands(int n){ |
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this.getTRed().setEnabled(true); |
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switch(n){
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case 1: this.getTGreen().setEnabled(false); |
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this.getTBlue().setEnabled(false); |
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break;
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case 2: this.getTGreen().setEnabled(true); |
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this.getTBlue().setEnabled(false); |
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break;
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case 3: this.getTGreen().setEnabled(true); |
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this.getTBlue().setEnabled(true); |
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break;
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} |
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} |
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} |