/*
* Font.java
*
*
* The Salamander Project - 2D and 3D graphics libraries in Java
* Copyright (C) 2004 Mark McKay
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* 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.*;
import java.awt.*;
import java.awt.geom.*;
import java.util.*;
import com.kitfox.svg.pathcmd.*;
//import org.apache.batik.ext.awt.geom.ExtendedGeneralPath;
/**
* 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
{
//We may define a path
// ExtendedGeneralPath path = null;
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 void loaderStartElement(SVGLoaderHelper helper, Attributes attrs, SVGElement parent)
{
//Load style string
super.loaderStartElement(helper, attrs, parent);
//If glyph path was specified, calculate it
String commandList = attrs.getValue("d");
if (commandList != null)
{
StyleAttribute atyleAttrib = getStyle("fill-rule");
String fillRule = (atyleAttrib == null) ? "nonzero" : atyleAttrib.getStringValue();
PathCommand[] commands = parsePathList(commandList);
// ExtendedGeneralPath buildPath = new ExtendedGeneralPath(
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
String horizAdvX = attrs.getValue("horiz-adv-x");
String vertOriginX = attrs.getValue("vert-origin-x");
String vertOriginY = attrs.getValue("vert-origin-y");
String vertAdvY = attrs.getValue("vert-adv-y");
if (horizAdvX != null) this.horizAdvX = XMLParseUtil.parseInt(horizAdvX);
if (vertOriginX != null) this.vertOriginX = XMLParseUtil.parseInt(vertOriginX);
if (vertOriginY != null) this.vertOriginY = XMLParseUtil.parseInt(vertOriginY);
if (vertAdvY != null) this.vertAdvY = XMLParseUtil.parseInt(vertAdvY);
}
*/
/**
* 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)
{
// StyleAttribute atyleAttrib = getStyle("fill-rule");
String fillRule = getStyle(sty.setName("fill-rule")) ? sty.getStringValue() : "nonzero";
PathCommand[] commands = parsePathList(commandList);
// ExtendedGeneralPath buildPath = new ExtendedGeneralPath(
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;
}
}
