/*
* PaintPicker.java
*
* Created on July 19, 2006, 7:13 PM
*/
package org.jdesktop.swingx.editors;
import java.awt.Color;
import java.awt.Component;
import java.awt.LinearGradientPaint;
import java.awt.MultipleGradientPaint;
import java.awt.Paint;
import java.awt.Rectangle;
import java.awt.geom.Point2D;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.JComponent;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.jdesktop.swingx.JXGradientChooser;
import org.jdesktop.swingx.color.ColorUtil;
import org.jdesktop.swingx.color.EyeDropperColorChooserPanel;
/**
*
* @author joshy
*/
public class PaintPicker extends javax.swing.JPanel {
Component lastPickerUsed = null;
Paint selectedPaint = Color.PINK;
JXGradientChooser gradientPicker;
/** Creates new form PaintPicker */
public PaintPicker() {
initComponents();
// set up the color picker
lastPickerUsed = colorPicker;
colorPicker.addChooserPanel(new EyeDropperColorChooserPanel());
ColorListener colorListener = new ColorListener();
colorPicker.getSelectionModel().addChangeListener(colorListener);
alphaSlider.addChangeListener(colorListener);
// set up the gradient picker
gradientPicker = new JXGradientChooser();
tabbedPane.addTab("Gradient",gradientPicker);
gradientPicker.addPropertyChangeListener("gradient",new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent propertyChangeEvent) {
lastPickerUsed = gradientPicker;
setPaint(gradientPicker.getGradient());
}
});
// update when the tabs change
tabbedPane.getModel().addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent changeEvent) {
lastPickerUsed = tabbedPane.getSelectedComponent();
Paint old = selectedPaint;
if(lastPickerUsed == colorPickerParent) {
selectedPaint = colorPicker.getSelectionModel().getSelectedColor();
}
if(lastPickerUsed == gradientPicker) {
selectedPaint = gradientPicker.getGradient();
}
firePropertyChange("paint",old,selectedPaint);
}
});
}
public Paint getPaint() {
return selectedPaint;
}
public void addPicker(JComponent comp, String title) {
tabbedPane.addTab(title,comp);
}
/** 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.
*/
// <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
private void initComponents() {
java.awt.GridBagConstraints gridBagConstraints;
tabbedPane = new javax.swing.JTabbedPane();
colorPickerParent = new javax.swing.JPanel();
colorPicker = new javax.swing.JColorChooser();
jLabel1 = new javax.swing.JLabel();
alphaSlider = new javax.swing.JSlider();
setLayout(new java.awt.GridBagLayout());
colorPickerParent.setLayout(new java.awt.GridBagLayout());
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridwidth = 2;
gridBagConstraints.weightx = 10.0;
gridBagConstraints.weighty = 10.0;
colorPickerParent.add(colorPicker, gridBagConstraints);
jLabel1.setText("Alpha:");
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 0;
gridBagConstraints.gridy = 1;
colorPickerParent.add(jLabel1, gridBagConstraints);
alphaSlider.setMaximum(255);
alphaSlider.setValue(255);
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 1;
gridBagConstraints.gridy = 1;
gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
colorPickerParent.add(alphaSlider, gridBagConstraints);
tabbedPane.addTab("Color", colorPickerParent);
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
gridBagConstraints.weightx = 10.0;
gridBagConstraints.weighty = 10.0;
add(tabbedPane, gridBagConstraints);
}// </editor-fold>//GEN-END:initComponents
public void setPaint(Paint paint) {
if(paint == selectedPaint) {
return;
}
Paint old = selectedPaint;
selectedPaint = paint;
if(paint instanceof Color) {
tabbedPane.setSelectedComponent(colorPickerParent);
colorPicker.setColor((Color)paint);
alphaSlider.setValue(((Color)paint).getAlpha());
}
if(paint instanceof MultipleGradientPaint) {
tabbedPane.setSelectedComponent(gradientPicker);
gradientPicker.setGradient((MultipleGradientPaint)paint);
}
firePropertyChange("paint", old, selectedPaint);
}
// return a paint suitable for display in a property sheet preview
Paint getDisplayPaint(Rectangle box) {
if(getPaint() instanceof MultipleGradientPaint) {
return getFlatGradient(gradientPicker, box.getWidth());
}
return getPaint();
}
/**
* Creates a flat version of the current gradient. This is a linear gradient
* from 0.0 to length,0. This gradient is suitable for drawing previews of
* the real gradient.
*
* @param length
* @return a gradient Paint with values between 0.0 and length
*/
private MultipleGradientPaint getFlatGradient(JXGradientChooser chooser, double length) {
MultipleGradientPaint gp = chooser.getGradient();
// set up the data for the gradient
float[] fractions = gp.getFractions();
Color[] colors = gp.getColors();
// fill in the gradient
Point2D start = new Point2D.Float(0, 0);
Point2D end = new Point2D.Float((float) length, 0);
MultipleGradientPaint paint = new LinearGradientPaint(
(float) start.getX(),
(float) start.getY(),
(float) end.getX(),
(float) end.getY(),
fractions, colors);
return paint;
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JSlider alphaSlider;
public javax.swing.JColorChooser colorPicker;
private javax.swing.JPanel colorPickerParent;
private javax.swing.JLabel jLabel1;
private javax.swing.JTabbedPane tabbedPane;
// End of variables declaration//GEN-END:variables
private class ColorListener implements ChangeListener {
public void stateChanged(ChangeEvent e) {
lastPickerUsed = colorPicker;
Paint old = selectedPaint;
selectedPaint = ColorUtil.setAlpha(colorPicker.getSelectionModel().getSelectedColor(), alphaSlider.getValue());
firePropertyChange("paint", old, selectedPaint);
}
}
}