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• jericho-html
• 3.2
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• RendererCSS.java

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net.htmlparser.jericho.RendererCSS Maven / Gradle / Ivy

// Jericho HTML Parser - Java based library for analysing and manipulating HTML
// Version 3.2
// Copyright (C) 2004-2009 Martin Jericho
// http://jericho.htmlparser.net/
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of either one of the following licences:
//
// 1. The Eclipse Public License (EPL) version 1.0,
// included in this distribution in the file licence-epl-1.0.html
// or available at http://www.eclipse.org/legal/epl-v10.html
//
// 2. The GNU Lesser General Public License (LGPL) version 2.1 or later,
// included in this distribution in the file licence-lgpl-2.1.txt
// or available at http://www.gnu.org/licenses/lgpl.txt
//
// This library is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the individual licence texts for more details.

package net.htmlparser.jericho;

import java.util.*;

final class RendererCSS {
	private static enum Side {
		top, right, bottom, left
	}

	private static Map UNIT_FACTOR=new HashMap();
	static {
		UNIT_FACTOR.put("em",1.0F);
		UNIT_FACTOR.put("ex",1.0F);
		UNIT_FACTOR.put("px",0.125F);
		UNIT_FACTOR.put("in",8F);
		UNIT_FACTOR.put("cm",3F);
		UNIT_FACTOR.put("mm",0.3F);
		UNIT_FACTOR.put("pt",0.1F);
		UNIT_FACTOR.put("pc",1.2F);
	}

	public static int getTopMargin(final Element element, int defaultValue) {
		return getMargin(get(element),Side.top,defaultValue);
	}

	public static int getBottomMargin(final Element element, int defaultValue) {
		return getMargin(get(element),Side.bottom,defaultValue);
	}

	public static int getLeftMargin(final Element element, int defaultValue) {
		return getMargin(get(element),Side.left,defaultValue);
	}

	public static int getRightMargin(final Element element, int defaultValue) {
		return getMargin(get(element),Side.right,defaultValue);
	}

	private static String get(final Element element) {
		return element.getAttributeValue("style");
	}

	private static int getMargin(final String css, final Side side, final int defaultValue) {
		if (css==null) return defaultValue;
		String[] styles=css.split(";");
		for (int i=0; i