/**
* Copyright 2011 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.waveprotocol.wave.client.doodad.selection;
/**
* A value object for an RGB triple.
*
* @author hearnden@google.com (David Hearnden)
*/
final class RgbColor {
static final RgbColor BLACK = new RgbColor(0, 0, 0);
static final RgbColor WHITE = new RgbColor(255, 255, 255);
final int red;
final int green;
final int blue;
RgbColor(int red, int green, int blue) {
this.red = red;
this.green = green;
this.blue = blue;
}
/** @return the CSS color expression for this color. */
public String getCssColor() {
return "rgb(" + red + "," + green + "," + blue + ")";
}
@Override
public int hashCode() {
// Bitshifting is significantly faster on both Chrome and Firefox.
return (red << 16) | (green << 8) | blue;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
} else if (!(o instanceof RgbColor)) {
return false;
} else {
RgbColor color = (RgbColor) o;
return red == color.red && green == color.green && blue == color.blue;
}
}
}