/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.isis.viewer.dnd.awt;
import java.awt.Toolkit;
import java.awt.image.FilteredImageSource;
import java.awt.image.RGBImageFilter;
import org.apache.isis.core.runtime.imageloader.TemplateImage;
import org.apache.isis.core.runtime.imageloader.TemplateImageLoader;
import org.apache.isis.viewer.dnd.drawing.Color;
import org.apache.isis.viewer.dnd.drawing.Image;
import org.apache.isis.viewer.dnd.drawing.ImageFactory;
import org.apache.isis.viewer.dnd.view.base.AwtImage;
public class AwtImageFactory extends ImageFactory {
private static class Filter extends RGBImageFilter {
@Override
public int filterRGB(final int x, final int y, final int rgb) {
return 0xFFFFFF - rgb;
}
}
private final TemplateImageLoader loader;
public AwtImageFactory(final TemplateImageLoader imageLoader) {
loader = imageLoader;
}
/**
* Load an image with the given name.
*/
@Override
public Image loadImage(final String path) {
final TemplateImage template = templateImage(path);
if (template == null) {
return null;
}
return new AwtImage(template.getImage());
}
@Override
protected Image loadImage(final String name, final int height, final Color tint) {
final TemplateImage template = templateImage(name);
if (template == null) {
return null;
}
final java.awt.Image iconImage = template.getIcon(height);
if (tint != null) {
Toolkit.getDefaultToolkit().createImage(new FilteredImageSource(iconImage.getSource(), new Filter()));
}
final Image icon = new AwtImage(iconImage);
return icon;
}
// ////////////////////////////////////////////////////////////////////
// Helpers
// ////////////////////////////////////////////////////////////////////
private TemplateImage templateImage(final String name) {
final TemplateImage template = loader.getTemplateImage(name);
return template;
}
}