/*
* This file is part of the Echo Web Application Framework (hereinafter "Echo").
* Copyright (C) 2002-2009 NextApp, Inc.
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*/
package nextapp.echo2.webcontainer.propertyrender;
import nextapp.echo2.app.Extent;
import nextapp.echo2.app.Insets;
import nextapp.echo2.webrender.output.CssStyle;
/**
* Utility class for rendering <code>nextapp.echo2.app.Insets</code>
* properties to CSS.
*/
public class InsetsRender {
/**
* Renders an <code>Insets</code> property to the given CSS style.
* Null property values are ignored.
*
* @param cssStyle the target <code>CssStyle</code>
* @param cssAttribute the CSS attribute name, e.g., "margin" or "padding".
* @param insets the property value
*/
public static void renderToStyle(CssStyle cssStyle, String cssAttribute, Insets insets) {
if (insets == null) {
return;
}
cssStyle.setAttribute(cssAttribute, renderCssAttributeValue(insets));
}
/**
* Renders a CSS attribute value representation of an <code>Insets</code>.
*
* @param insets the <code>Insets</code> to render
* @return a CSS attribute value representation
*/
public static String renderCssAttributeValue(Insets insets) {
Extent top = insets.getTop();
if (top != null && top.equals(insets.getLeft()) && top.equals(insets.getRight())
&& top.equals(insets.getBottom())) {
return ExtentRender.renderCssAttributeValue(top);
} else {
StringBuffer out = new StringBuffer();
if (top == null) {
out.append("0px");
} else {
out.append(ExtentRender.renderCssAttributeValue(top));
}
out.append(" ");
if (insets.getRight() == null) {
out.append("0px");
} else {
out.append(ExtentRender.renderCssAttributeValue(insets.getRight()));
}
out.append(" ");
if (insets.getBottom() == null) {
out.append("0px");
} else {
out.append(ExtentRender.renderCssAttributeValue(insets.getBottom()));
}
out.append(" ");
if (insets.getLeft() == null) {
out.append("0px");
} else {
out.append(ExtentRender.renderCssAttributeValue(insets.getLeft()));
}
return out.toString();
}
}
/** Non-instantiable class. */
private InsetsRender() { }
}