/*
* 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.pathcmd.BuildHistory;
import com.kitfox.svg.pathcmd.PathCommand;
import com.kitfox.svg.xml.StyleAttribute;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.GeneralPath;
import java.awt.geom.Rectangle2D;
import java.util.Iterator;
/**
* 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 MissingGlyph extends ShapeElement
{
public static final String TAG_NAME = "missingglyph";
//We may define a path
Shape path = null;
//Alternately, we may have child graphical elements
int horizAdvX = -1; //Inherits font's value if not set
int vertOriginX = -1; //Inherits font's value if not set
int vertOriginY = -1; //Inherits font's value if not set
int vertAdvY = -1; //Inherits font's value if not set
/**
* Creates a new instance of Font
*/
public MissingGlyph()
{
}
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);
}
protected void build() throws SVGException
{
super.build();
StyleAttribute sty = new StyleAttribute();
String commandList = "";
if (getPres(sty.setName("d")))
{
commandList = sty.getStringValue();
}
//If glyph path was specified, calculate it
if (commandList != null)
{
String fillRule = getStyle(sty.setName("fill-rule")) ? sty.getStringValue() : "nonzero";
PathCommand[] commands = parsePathList(commandList);
GeneralPath buildPath = new GeneralPath(
fillRule.equals("evenodd") ? GeneralPath.WIND_EVEN_ODD : GeneralPath.WIND_NON_ZERO,
commands.length);
BuildHistory hist = new BuildHistory();
for (int i = 0; i < commands.length; i++)
{
PathCommand cmd = commands[i];
cmd.appendPath(buildPath, hist);
}
//Reflect glyph path to put it in user coordinate system
AffineTransform at = new AffineTransform();
at.scale(1, -1);
path = at.createTransformedShape(buildPath);
}
//Read glyph spacing info
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 Shape getPath()
{
return path;
}
public void render(Graphics2D g) throws SVGException
{
//Do not push or pop stack
if (path != null)
{
renderShape(g, path);
}
Iterator it = children.iterator();
while (it.hasNext())
{
SVGElement ele = (SVGElement) it.next();
if (ele instanceof RenderableElement)
{
((RenderableElement) ele).render(g);
}
}
//Do not push or pop stack
}
public int getHorizAdvX()
{
if (horizAdvX == -1)
{
horizAdvX = ((Font) parent).getHorizAdvX();
}
return horizAdvX;
}
public int getVertOriginX()
{
if (vertOriginX == -1)
{
vertOriginX = getHorizAdvX() / 2;
}
return vertOriginX;
}
public int getVertOriginY()
{
if (vertOriginY == -1)
{
vertOriginY = ((Font) parent).getFontFace().getAscent();
}
return vertOriginY;
}
public int getVertAdvY()
{
if (vertAdvY == -1)
{
vertAdvY = ((Font) parent).getFontFace().getUnitsPerEm();
}
return vertAdvY;
}
public Shape getShape()
{
if (path != null)
{
return shapeToParent(path);
}
return null;
}
public Rectangle2D getBoundingBox() throws SVGException
{
if (path != null)
{
return boundsToParent(includeStrokeInBounds(path.getBounds2D()));
}
return null;
}
/**
* 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;
}
}