de.intarsys.pdf.font.PDGlyphs Maven / Gradle / Ivy

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/*
 * Copyright (c) 2007, intarsys consulting GmbH
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 * - Neither the name of intarsys nor the names of its contributors may be used
 *   to endorse or promote products derived from this software without specific
 *   prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package de.intarsys.pdf.font;

import de.intarsys.tools.attribute.AttributeMap;
import de.intarsys.tools.attribute.IAttributeSupport;

public class PDGlyphs implements IAttributeSupport {

	final private AttributeMap attributes = new AttributeMap();

	final private int codepoint;

	final private PDFont font;

	private Boolean whitespace;

	private float width;

	public PDGlyphs(PDFont font, int codepoint) {
		super();
		this.font = font;
		this.codepoint = codepoint;
		this.width = font.getGlyphWidthEncoded(codepoint);
	}

	public double getAscent() {
		return font.getFontDescriptor().getAscent();
	}

	final public Object getAttribute(Object key) {
		return attributes.getAttribute(key);
	}

	public char[] getChars() {
		CMap toUnicode = font.getToUnicode();
		if (toUnicode == null) {
			return new char[] { (char) font.getEncoding().getDecoded(codepoint) };
		}
		return toUnicode.getChars(codepoint);
	}

	public int getCodepoint() {
		return codepoint;
	}

	public int getDecoded() {
		return font.getEncoding().getDecoded(codepoint);
	}

	public double getDescent() {
		return font.getFontDescriptor().getDescent();
	}

	public PDFont getFont() {
		return font;
	}

	public String getGlyphName() {
		return font.getEncoding().getGlyphName(codepoint);
	}

	public int getUnicode() {
		try {
			CMap toUnicode = font.getToUnicode();
			if (toUnicode == null) {
				return font.getEncoding().getDecoded(codepoint);
			}
			return toUnicode.getDecoded(codepoint);
		} catch (Exception e) {
			return font.getEncoding().getDecoded(codepoint);
		}
	}

	public float getWidth() {
		return width;
	}

	public boolean isWhitespace() {
		if (whitespace != null) {
			return whitespace;
		}
		int c = getDecoded();
		whitespace = c == 0 || c == 32;
		return whitespace;
	}

	final public Object removeAttribute(Object key) {
		return attributes.removeAttribute(key);
	}

	public void reset() {
		this.width = font.getGlyphWidthEncoded(codepoint);
	}

	final public Object setAttribute(Object key, Object o) {
		return attributes.setAttribute(key, o);
	}

	@Override
	public String toString() {
		StringBuilder sb = new StringBuilder();
		sb.append("glyph "); //$NON-NLS-1$
		sb.append((char) getUnicode());
		sb.append(", cp "); //$NON-NLS-1$
		sb.append(codepoint);
		sb.append(", uc "); //$NON-NLS-1$
		sb.append(getUnicode());
		return sb.toString();
	}
}