ol.ImageData Maven / Gradle / Ivy
/*******************************************************************************
* Copyright 2017, 2018 gwt-ol3
*
* 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 ol;
import jsinterop.annotations.JsOverlay;
import jsinterop.annotations.JsType;
/**
* @author Daniel Eggert ([email protected])
*/
@JsType(isNative = true)
public class ImageData extends elemental2.dom.ImageData {
ImageData(double dataOrWidth, double widthOrHeight) {
super(dataOrWidth, widthOrHeight);
}
@JsOverlay
private static final int NUM_CHANNELS = 4;
@JsOverlay
public final PixelColor getPixel(int x, int y, PixelColor color) {
if (x > -1 && x < width && y > -1 && y < height) {
int offset = (y * width + x) * NUM_CHANNELS;
for (int c = 0; c < NUM_CHANNELS; ++c) {
color.setAt(c, data.getAt(offset + c));
}
}
return color;
}
@JsOverlay
public final void putPixel(int x, int y, PixelColor color) {
if (x > -1 && x < width && y > -1 && y < height) {
int offset = (y * width + x) * NUM_CHANNELS;
for (int c = 0; c < NUM_CHANNELS; ++c) {
data.setAt(offset + c, color.getAt(c));
}
}
}
}