/*
* 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 com.kitfox.svg.xml.StyleAttribute;
import java.util.HashMap;
/**
* 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()
{
}
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
*/
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;
}
}
public void loaderEndElement(SVGLoaderHelper helper) throws SVGParseException
{
super.loaderEndElement(helper);
//build();
helper.universe.registerFont(this);
}
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
*/
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;
*/
}
}