com.sun.swingset3.demos.spinner.JPaletteShower Maven / Gradle / Ivy
/*
* Copyright 2007-2008 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Sun Microsystems nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.sun.swingset3.demos.spinner;
import javax.swing.*;
import java.awt.*;
/**
* @author Mikhail Lapshin
*/
public class JPaletteShower extends JComponent {
private Palette palette;
public JPaletteShower(Palette palette, int width, int height) {
setPreferredSize(new Dimension(width, height));
setMinimumSize(new Dimension(width, height));
this.palette = palette;
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
int w = getSize().width;
int h = getSize().height;
int maxIndex = palette.getSize() - 1;
double rate = (double) maxIndex / w;
for (int x = 0; x < w; x++) {
g.setColor(palette.getColor((int) (x * rate)));
g.fillRect(x, 0, 1, h);
}
}
public Palette getPalette() {
return palette;
}
public void setPalette(Palette palette) {
this.palette = palette;
repaint();
}
}