/*
* SVG Salamander
* Copyright (c) 2004, Mark McKay
* All rights reserved.
*
* 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.
*
* 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 HOLDER 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.
*
* Mark McKay can be contacted at mark@kitfox.com. Salamander and other
* projects can be found at http://www.kitfox.com
*
* Created on February 20, 2004, 10:00 PM
*/
package com.kitfox.svg;
import java.util.HashMap;
import com.kitfox.svg.xml.StyleAttribute;
/**
* Implements an embedded font.
*
* SVG specification: http://www.w3.org/TR/SVG/fonts.html
*
* @author Mark McKay
* @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
*/
public class Font extends SVGElement {
public static final String TAG_NAME = "font";
int horizOriginX = 0;
int horizOriginY = 0;
int horizAdvX = -1; // Must be specified
int vertOriginX = -1; // Defaults to horizAdvX / 2
int vertOriginY = -1; // Defaults to font's ascent
int vertAdvY = -1; // Defaults to one 'em'. See font-face
FontFace fontFace = null;
MissingGlyph missingGlyph = null;
final HashMap glyphs = new HashMap();
/**
* Creates a new instance of Font
*/
public Font() {
}
@Override
public String getTagName() {
return TAG_NAME;
}
/**
* Called after the start element but before the end element to indicate
* each child tag that has been processed
*/
@Override
public void loaderAddChild(SVGLoaderHelper helper, SVGElement child)
throws SVGElementException {
super.loaderAddChild(helper, child);
if (child instanceof Glyph) {
glyphs.put(((Glyph) child).getUnicode(), child);
} else if (child instanceof MissingGlyph) {
missingGlyph = (MissingGlyph) child;
} else if (child instanceof FontFace) {
fontFace = (FontFace) child;
}
}
@Override
public void loaderEndElement(SVGLoaderHelper helper)
throws SVGParseException {
super.loaderEndElement(helper);
// build();
helper.universe.registerFont(this);
}
@Override
protected void build() throws SVGException {
super.build();
StyleAttribute sty = new StyleAttribute();
if (getPres(sty.setName("horiz-origin-x"))) {
horizOriginX = sty.getIntValue();
}
if (getPres(sty.setName("horiz-origin-y"))) {
horizOriginY = sty.getIntValue();
}
if (getPres(sty.setName("horiz-adv-x"))) {
horizAdvX = sty.getIntValue();
}
if (getPres(sty.setName("vert-origin-x"))) {
vertOriginX = sty.getIntValue();
}
if (getPres(sty.setName("vert-origin-y"))) {
vertOriginY = sty.getIntValue();
}
if (getPres(sty.setName("vert-adv-y"))) {
vertAdvY = sty.getIntValue();
}
}
public FontFace getFontFace() {
return fontFace;
}
public MissingGlyph getGlyph(String unicode) {
Glyph retVal = (Glyph) glyphs.get(unicode);
if (retVal == null) {
return missingGlyph;
}
return retVal;
}
public int getHorizOriginX() {
return horizOriginX;
}
public int getHorizOriginY() {
return horizOriginY;
}
public int getHorizAdvX() {
return horizAdvX;
}
public int getVertOriginX() {
if (vertOriginX != -1) {
return vertOriginX;
}
vertOriginX = getHorizAdvX() / 2;
return vertOriginX;
}
public int getVertOriginY() {
if (vertOriginY != -1) {
return vertOriginY;
}
vertOriginY = fontFace.getAscent();
return vertOriginY;
}
public int getVertAdvY() {
if (vertAdvY != -1) {
return vertAdvY;
}
vertAdvY = fontFace.getUnitsPerEm();
return vertAdvY;
}
/**
* Updates all attributes in this diagram associated with a time event. Ie,
* all attributes with track information.
*
* @return - true if this node has changed state as a result of the time
* update
*/
@Override
public boolean updateTime(double curTime) throws SVGException {
// Fonts can't change
return false;
/*
* if (trackManager.getNumTracks() == 0) return false;
*
* //Get current values for parameters StyleAttribute sty = new
* StyleAttribute(); boolean stateChange = false;
*
* if (getPres(sty.setName("horiz-origin-x"))) { int newVal =
* sty.getIntValue(); if (newVal != horizOriginX) { horizOriginX =
* newVal; stateChange = true; } }
*
* if (getPres(sty.setName("horiz-origin-y"))) { int newVal =
* sty.getIntValue(); if (newVal != horizOriginY) { horizOriginY =
* newVal; stateChange = true; } }
*
* if (getPres(sty.setName("horiz-adv-x"))) { int newVal =
* sty.getIntValue(); if (newVal != horizAdvX) { horizAdvX = newVal;
* stateChange = true; } }
*
* if (getPres(sty.setName("vert-origin-x"))) { int newVal =
* sty.getIntValue(); if (newVal != vertOriginX) { vertOriginX = newVal;
* stateChange = true; } }
*
* if (getPres(sty.setName("vert-origin-y"))) { int newVal =
* sty.getIntValue(); if (newVal != vertOriginY) { vertOriginY = newVal;
* stateChange = true; } }
*
* if (getPres(sty.setName("vert-adv-y"))) { int newVal =
* sty.getIntValue(); if (newVal != vertAdvY) { vertAdvY = newVal;
* stateChange = true; } }
*
* return shapeChange;
*/
}
}