ColourEditor.java

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package org.pepsoft.worldpainter;

import java.awt.Color;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JColorChooser;

/**
 *
 * @author pepijn
 */
public class ColourEditor extends javax.swing.JPanel implements MouseListener {
    /**
     * Creates new form ColourEditor
     */
    public ColourEditor() {
        initComponents();
        setLabelColour();
    }

    public int getColour() {
        return colour;
    }

    public void setColour(int colour) {
        this.colour = colour;
        setLabelColour();
    }

    @Override
    public void setEnabled(boolean enabled) {
        super.setEnabled(enabled);
        labelColour.setOpaque(enabled);
        buttonSelectColour.setEnabled(enabled);
    }

    @Override
    public int getBaseline(int width, int height) {
        return labelColour.getBaseline(width, height);
    }

    // MouseListener
    
    @Override
    public void mouseClicked(MouseEvent e) {
        if (isEnabled()) {
            pickColour();
        }
    }

    @Override public void mousePressed(MouseEvent e) {}
    @Override public void mouseReleased(MouseEvent e) {}
    @Override public void mouseEntered(MouseEvent e) {}
    @Override public void mouseExited(MouseEvent e) {}

    private void setLabelColour() {
        labelColour.setBackground(new Color(colour));
    }
    
    private void pickColour() {
        Color pick = JColorChooser.showDialog(this, "Select Colour", new Color(colour));
        if (pick != null) {
            int newColour = pick.getRGB();
            if (newColour != colour) {
                int oldColour = colour;
                colour = pick.getRGB();
                setLabelColour();
                firePropertyChange("colour", oldColour, newColour);
            }
        }
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        labelColour = new javax.swing.JLabel();
        buttonSelectColour = new javax.swing.JButton();

        labelColour.setBackground(new java.awt.Color(255, 128, 0));
        labelColour.setLabelFor(buttonSelectColour);
        labelColour.setText("                 ");
        labelColour.setToolTipText("Click to select a colour");
        labelColour.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
        labelColour.setOpaque(true);

        buttonSelectColour.setText("...");
        buttonSelectColour.setToolTipText("Click to select a colour");
        buttonSelectColour.addActionListener(this::buttonSelectColourActionPerformed);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(labelColour)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(buttonSelectColour))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(labelColour)
                .addComponent(buttonSelectColour))
        );
    }// </editor-fold>//GEN-END:initComponents

    private void buttonSelectColourActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonSelectColourActionPerformed
        pickColour();
    }//GEN-LAST:event_buttonSelectColourActionPerformed

    private int colour = Color.ORANGE.getRGB();

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton buttonSelectColour;
    private javax.swing.JLabel labelColour;
    // End of variables declaration//GEN-END:variables

    private static final long serialVersionUID = 1L;
}