@Override
public void render(Context context, Object value, SafeHtmlBuilder safeHtmlBuilder) {
StringBuilder sb = new StringBuilder();
Object image = itemDelegator.getImage(value);
if (image instanceof ImageResource) {
ImageResource imageResource = (ImageResource) image;
sb.append("<div style='position:relative;padding-left:");
sb.append(imageResource.getWidth() + 6);
sb.append("px;'>");
sb.append("<div style=\"position:absolute;left:0px;top:0px;height:100%;");
sb.append("width:").append(imageResource.getWidth()).append("px;");
sb.append("background:url('").append(imageResource.getURL()).append("') ");
sb.append("no-repeat scroll center center transparent;");
sb.append("\"></div>");
sb.append(itemDelegator.getText(value));
sb.append("</div>");
} else if (image instanceof ComposedImage) {
ComposedImage composedImage = (ComposedImage) image;
List<ComposedImage.Size> sizes = new ArrayList<ComposedImage.Size>();
List<Object> images = new ArrayList<Object>(composedImage.getImages());
List<ImageData> nestedImagesData = new ArrayList<ImageData>();
for (Object nestedImage : images) {
ImageData nestedImageData = getImageData(nestedImage);
ComposedImage.Size size = new ComposedImage.Size();
size.height = nestedImageData.height;
size.width = nestedImageData.width;
sizes.add(size);
nestedImagesData.add(nestedImageData);
}
ComposedImage.Size size = composedImage.getSize(sizes);
sb.append("<div style='position:relative;padding-left:");
sb.append(size.width + 6);
sb.append("px;'>");
List<ComposedImage.Point> drawPoints = composedImage.getDrawPoints(size);
int i = 0;
for (ComposedImage.Point drawPoint : drawPoints) {
ImageResource nestedImage = (ImageResource) images.get(i++);
sb.append("<div style=\"position:absolute;left:")
.append(drawPoint.x)
.append("px;top:")
.append(drawPoint.y)
.append("px;height:100%;");
sb.append("width:").append(nestedImage.getWidth()).append("px;");
sb.append("background:url('").append(nestedImage.getURL()).append("') ");
sb.append("no-repeat scroll center center transparent;");
sb.append("\"></div>");
}
sb.append(itemDelegator.getText(value));
sb.append("</div>");
} else {
sb.append(itemDelegator.getText(value));
}
safeHtmlBuilder.appendHtmlConstant(sb.toString());
}
protected ImageData getImageData(Object image) {
ImageData imageData = new ImageData();
if (image instanceof ImageResource) {
ImageResource imageResource = (ImageResource) image;
imageData.height = imageResource.getHeight();
imageData.width = imageResource.getWidth();
} else if (image instanceof ComposedImage) {
ComposedImage composedImage = (ComposedImage) image;
List<ComposedImage.Size> sizes = new ArrayList<ComposedImage.Size>();
List<Object> images = new ArrayList<Object>(composedImage.getImages());
List<ImageData> nestedImagesData = new ArrayList<ImageData>();
for (Object nestedImage : images) {
ImageData nestedImageData = getImageData(nestedImage);
ComposedImage.Size size = new ComposedImage.Size();
size.height = nestedImageData.height;
size.width = nestedImageData.width;
sizes.add(size);
nestedImagesData.add(nestedImageData);
}
}
return imageData;
}