hillion 01/07/30 05:36:56
Modified: sources/org/apache/batik/dom/svg
DefaultUnitProcessorContext.java
SVGOMFECompositeElement.java SVGOMLength.java
Added: sources/org/apache/batik/dom/svg UnitProcessor.java
Removed: sources/org/apache/batik/util UnitProcessor.java
Log:
moved UnitProcessor from org.apache.batik.util to org.apache.batik.dom.svg.
Revision Changes Path
1.9 +1 -2
xml-batik/sources/org/apache/batik/dom/svg/DefaultUnitProcessorContext.java
Index: DefaultUnitProcessorContext.java
===================================================================
RCS file:
/home/cvs/xml-batik/sources/org/apache/batik/dom/svg/DefaultUnitProcessorContext.java,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -r1.8 -r1.9
--- DefaultUnitProcessorContext.java 2001/03/13 16:28:44 1.8
+++ DefaultUnitProcessorContext.java 2001/07/30 12:36:56 1.9
@@ -12,7 +12,6 @@
import org.apache.batik.css.HiddenChildElementSupport;
import org.apache.batik.parser.LengthParser;
-import org.apache.batik.util.UnitProcessor;
import org.apache.batik.util.SVGConstants;
import org.w3c.dom.css.CSSPrimitiveValue;
@@ -24,7 +23,7 @@
* The default unit processor context.
*
* @author <a href="mailto:[EMAIL PROTECTED]";>Stephane Hillion</a>
- * @version $Id: DefaultUnitProcessorContext.java,v 1.8 2001/03/13 16:28:44 hillion
Exp $
+ * @version $Id: DefaultUnitProcessorContext.java,v 1.9 2001/07/30 12:36:56 hillion
Exp $
*/
public class DefaultUnitProcessorContext
implements UnitProcessor.Context,
1.8 +2 -137
xml-batik/sources/org/apache/batik/dom/svg/SVGOMFECompositeElement.java
Index: SVGOMFECompositeElement.java
===================================================================
RCS file:
/home/cvs/xml-batik/sources/org/apache/batik/dom/svg/SVGOMFECompositeElement.java,v
retrieving revision 1.7
retrieving revision 1.8
diff -u -r1.7 -r1.8
--- SVGOMFECompositeElement.java 2001/07/24 17:56:52 1.7
+++ SVGOMFECompositeElement.java 2001/07/30 12:36:56 1.8
@@ -32,7 +32,7 @@
* This class implements {@link org.w3c.dom.svg.SVGFECompositeElement}.
*
* @author <a href="mailto:[EMAIL PROTECTED]";>Stephane Hillion</a>
- * @version $Id: SVGOMFECompositeElement.java,v 1.7 2001/07/24 17:56:52 hillion Exp
$
+ * @version $Id: SVGOMFECompositeElement.java,v 1.8 2001/07/30 12:36:56 hillion Exp
$
*/
public class SVGOMFECompositeElement
extends SVGOMFilterPrimitiveStandardAttributes
@@ -307,142 +307,7 @@
getNonCSSPresentationalHints(this);
}
- // XLink support //////////////////////////////////////////////////////
-
- /**
- * The SVGURIReference support.
- */
- protected SVGURIReferenceSupport uriReferenceSupport;
-
- /**
- * Returns uriReferenceSupport different from null.
- */
- protected final SVGURIReferenceSupport getSVGURIReferenceSupport() {
- if (uriReferenceSupport == null) {
- uriReferenceSupport = new SVGURIReferenceSupport();
- }
- return uriReferenceSupport;
- }
-
- /**
- * <b>DOM</b>: Implements {@link
- * org.w3c.dom.svg.SVGURIReference#getHref()}.
- */
- public SVGAnimatedString getHref() {
- return getSVGURIReferenceSupport().getHref(this);
- }
-
- /**
- * <b>DOM</b>: Implements {@link
- * org.w3c.dom.svg.SVGURIReference#getXlinkType()}.
- */
- public String getXlinkType() {
- return XLinkSupport.getXLinkType(this);
- }
-
- /**
- * <b>DOM</b>: Implements {@link
- * org.w3c.dom.svg.SVGURIReference#setXlinkType(String)}.
- */
- public void setXlinkType(String str) {
- XLinkSupport.setXLinkType(this, str);
- }
-
- /**
- * <b>DOM</b>: Implements {@link
- * org.w3c.dom.svg.SVGURIReference#getXlinkRole()}.
- */
- public String getXlinkRole() {
- return XLinkSupport.getXLinkRole(this);
- }
-
- /**
- * <b>DOM</b>: Implements {@link
- * org.w3c.dom.svg.SVGURIReference#setXlinkRole(String)}.
- */
- public void setXlinkRole(String str) {
- XLinkSupport.setXLinkRole(this, str);
- }
-
- /**
- * <b>DOM</b>: Implements {@link
- * org.w3c.dom.svg.SVGURIReference#getXlinkArcRole()}.
- */
- public String getXlinkArcRole() {
- return XLinkSupport.getXLinkArcRole(this);
- }
-
- /**
- * <b>DOM</b>: Implements {@link
- * org.w3c.dom.svg.SVGURIReference#setXlinkArcRole(String)}.
- */
- public void setXlinkArcRole(String str) {
- XLinkSupport.setXLinkArcRole(this, str);
- }
-
- /**
- * <b>DOM</b>: Implements {@link
- * org.w3c.dom.svg.SVGURIReference#getXlinkTitle()}.
- */
- public String getXlinkTitle() {
- return XLinkSupport.getXLinkTitle(this);
- }
-
- /**
- * <b>DOM</b>: Implements {@link
- * org.w3c.dom.svg.SVGURIReference#setXlinkTitle(String)}.
- */
- public void setXlinkTitle(String str) {
- XLinkSupport.setXLinkTitle(this, str);
- }
-
- /**
- * <b>DOM</b>: Implements {@link
- * org.w3c.dom.svg.SVGURIReference#getXlinkShow()}.
- */
- public String getXlinkShow() {
- return XLinkSupport.getXLinkShow(this);
- }
-
- /**
- * <b>DOM</b>: Implements {@link
- * org.w3c.dom.svg.SVGURIReference#setXlinkShow(String)}.
- */
- public void setXlinkShow(String str) {
- XLinkSupport.setXLinkShow(this, str);
- }
-
- /**
- * <b>DOM</b>: Implements {@link
- * org.w3c.dom.svg.SVGURIReference#getXlinkActuate()}.
- */
- public String getXlinkActuate() {
- return XLinkSupport.getXLinkActuate(this);
- }
-
- /**
- * <b>DOM</b>: Implements {@link
- * org.w3c.dom.svg.SVGURIReference#setXlinkActuate(String)}.
- */
- public void setXlinkActuate(String str) {
- XLinkSupport.setXLinkActuate(this, str);
- }
-
- /**
- * Returns the value of the 'xlink:href' attribute of the given element.
- */
- public String getXlinkHref() {
- return XLinkSupport.getXLinkHref(this);
- }
-
- /**
- * Sets the value of the 'xlink:href' attribute of the given element.
- */
- public void setXlinkHref(String str) {
- XLinkSupport.setXLinkHref(this, str);
- }
-
- // SVGStylable support ///////////////////////////////////////////////////
+ // SVGStylable support ///////////////////////////////////////////////////
/**
* The stylable support.
1.7 +1 -2 xml-batik/sources/org/apache/batik/dom/svg/SVGOMLength.java
Index: SVGOMLength.java
===================================================================
RCS file: /home/cvs/xml-batik/sources/org/apache/batik/dom/svg/SVGOMLength.java,v
retrieving revision 1.6
retrieving revision 1.7
diff -u -r1.6 -r1.7
--- SVGOMLength.java 2001/01/03 14:17:39 1.6
+++ SVGOMLength.java 2001/07/30 12:36:56 1.7
@@ -13,7 +13,6 @@
import org.apache.batik.parser.LengthHandler;
import org.apache.batik.parser.LengthParser;
import org.apache.batik.parser.ParseException;
-import org.apache.batik.util.UnitProcessor;
import org.w3c.dom.Attr;
import org.w3c.dom.DOMException;
import org.w3c.dom.svg.SVGElement;
@@ -23,7 +22,7 @@
* This class implements {@link org.w3c.dom.svg.SVGLength}.
*
* @author <a href="mailto:[EMAIL PROTECTED]";>Stephane Hillion</a>
- * @version $Id: SVGOMLength.java,v 1.6 2001/01/03 14:17:39 hillion Exp $
+ * @version $Id: SVGOMLength.java,v 1.7 2001/07/30 12:36:56 hillion Exp $
*/
public class SVGOMLength
implements SVGLength,
1.1 xml-batik/sources/org/apache/batik/dom/svg/UnitProcessor.java
Index: UnitProcessor.java
===================================================================
/*****************************************************************************
* Copyright (C) The Apache Software Foundation. All rights reserved. *
* ------------------------------------------------------------------------- *
* This software is published under the terms of the Apache Software License *
* version 1.1, a copy of which has been included with this distribution in *
* the LICENSE file. *
*****************************************************************************/
package org.apache.batik.dom.svg;
import java.awt.geom.AffineTransform;
import java.awt.geom.NoninvertibleTransformException;
import java.awt.geom.Point2D;
import java.io.Reader;
import java.io.StringReader;
import org.apache.batik.css.HiddenChildElementSupport;
import org.apache.batik.parser.AWTTransformProducer;
import org.apache.batik.parser.LengthHandler;
import org.apache.batik.parser.LengthParser;
import org.apache.batik.parser.ParseException;
import org.apache.batik.util.CSSConstants;
import org.apache.batik.util.resources.Messages;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.css.CSSPrimitiveValue;
import org.w3c.dom.css.CSSStyleDeclaration;
import org.w3c.dom.svg.SVGElement;
import org.w3c.dom.svg.SVGLength;
import org.w3c.dom.svg.SVGSVGElement;
import org.w3c.dom.svg.SVGTransformable;
/**
* This class contains utility methods for processing the SVG and CSS
* units.
*
* @author <a href="mailto:[EMAIL PROTECTED]";>Stephane Hillion</a>
* @version $Id: UnitProcessor.java,v 1.1 2001/07/30 12:36:56 hillion Exp $
*/
public abstract class UnitProcessor {
/**
* This constant represents horizontal lengths.
*/
public final static short HORIZONTAL_LENGTH = 2;
/**
* This constant represents vertical lengths.
*/
public final static short VERTICAL_LENGTH = 1;
/**
* This constant represents other lengths.
*/
public final static short OTHER_LENGTH = 0;
/**
* This class does not need to be instantiated.
*/
protected UnitProcessor() {
}
/**
* Converts a SVG length value to user space.
* @param t the unit type like specified in the CSSPrimitiveType interface.
* @param v the length value.
* @param e the element.
* @param d HORIZONTAL_LENGTH, VERTICAL_LENGTH or OTHER_LENGTH.
* @param c The context.
* @exception RuntimeException If an invalid unit type is specified.
*/
public static float cssToUserSpace(short t, float v, SVGElement e, short d,
Context c) throws RuntimeException {
if (t == CSSPrimitiveValue.CSS_NUMBER) {
return v;
}
float f = c.getPixelToMM();
switch (t) {
case CSSPrimitiveValue.CSS_PX:
return v;
case CSSPrimitiveValue.CSS_MM:
return (v / f);
case CSSPrimitiveValue.CSS_CM:
return (v * 10 / f);
case CSSPrimitiveValue.CSS_IN:
return (v * 25.4f / f);
case CSSPrimitiveValue.CSS_PT:
return (v * 25.4f / (72 * f));
case CSSPrimitiveValue.CSS_PC:
return (v * 25.4f / (6 * f));
case CSSPrimitiveValue.CSS_EMS:
return emsToPixels(v, e, d, c);
case CSSPrimitiveValue.CSS_EXS:
return exsToPixels(v, e, d, c);
case CSSPrimitiveValue.CSS_PERCENTAGE:
return percentagesToPixels(v, e, d, c);
default:
throw new IllegalArgumentException
(Messages.formatMessage("invalid.css.unit",
new Object[] { new Integer(t) }));
}
}
/**
* Converts a SVG length value to screen pixels.
* @param t the unit type like specified in the SVGLength interface.
* @param v the length value.
* @param e the element.
* @param d HORIZONTAL_LENGTH, VERTICAL_LENGTH or OTHER_LENGTH.
* @param c The context.
* @exception RuntimeException If an invalid unit type is specified.
*/
public static float userSpaceToSVG(short t, float v, SVGElement e, short d,
Context c) throws RuntimeException {
if (t == SVGLength.SVG_LENGTHTYPE_NUMBER) {
return v;
}
float f = c.getPixelToMM();
switch (t) {
case SVGLength.SVG_LENGTHTYPE_PX:
return v;
case SVGLength.SVG_LENGTHTYPE_MM:
return (v * f);
case SVGLength.SVG_LENGTHTYPE_CM:
return (v * f / 10);
case SVGLength.SVG_LENGTHTYPE_IN:
return (v * f / 25.4f);
case SVGLength.SVG_LENGTHTYPE_PT:
return (v * (72 * f) / 25.4f);
case SVGLength.SVG_LENGTHTYPE_PC:
return (v * (6 * f) / 25.4f);
case SVGLength.SVG_LENGTHTYPE_EMS:
return pixelsToEms(v, e, d, c);
case SVGLength.SVG_LENGTHTYPE_EXS:
return pixelsToExs(v, e, d, c);
case SVGLength.SVG_LENGTHTYPE_PERCENTAGE:
return pixelsToPercentages(v, e, d, c);
default:
throw new IllegalArgumentException
(Messages.formatMessage("invalid.svg.unit",
new Object[] { new Integer(t) }));
}
}
/**
* Converts a SVG length value to screen pixels.
* @param t the unit type like specified in the SVGLength interface.
* @param v the length value.
* @param e the element.
* @param d HORIZONTAL_LENGTH, VERTICAL_LENGTH or OTHER_LENGTH.
* @param c The context.
* @exception RuntimeException If an invalid unit type is specified.
*/
public static float svgToUserSpace(short t, float v, SVGElement e, short d,
Context c) throws RuntimeException {
if (t == SVGLength.SVG_LENGTHTYPE_NUMBER) {
return v;
}
float f = c.getPixelToMM();
switch (t) {
case SVGLength.SVG_LENGTHTYPE_PX:
return v;
case SVGLength.SVG_LENGTHTYPE_MM:
return (v / f);
case SVGLength.SVG_LENGTHTYPE_CM:
return (v * 10 / f);
case SVGLength.SVG_LENGTHTYPE_IN:
return (v * 25.4f / f);
case SVGLength.SVG_LENGTHTYPE_PT:
return (v * 25.4f / (72 * f));
case SVGLength.SVG_LENGTHTYPE_PC:
return (v * 25.4f / (6 * f));
case SVGLength.SVG_LENGTHTYPE_EMS:
return emsToPixels(v, e, d, c);
case SVGLength.SVG_LENGTHTYPE_EXS:
return exsToPixels(v, e, d, c);
case SVGLength.SVG_LENGTHTYPE_PERCENTAGE:
return percentagesToPixels(v, e, d, c);
default:
throw new IllegalArgumentException
(Messages.formatMessage("invalid.svg.unit",
new Object[] { new Integer(t) }));
}
/*
if (t == SVGLength.SVG_LENGTHTYPE_NUMBER) {
return v;
}
float f = c.getPixelToMM();
switch (t) {
case SVGLength.SVG_LENGTHTYPE_PX:
return pixelsToNumber(v, e, d, c);
case SVGLength.SVG_LENGTHTYPE_MM:
return pixelsToNumber(v / f, e, d, c);
case SVGLength.SVG_LENGTHTYPE_CM:
return pixelsToNumber(v * 10 / f, e, d, c);
case SVGLength.SVG_LENGTHTYPE_IN:
return pixelsToNumber(v * 25.4f / f, e, d, c);
case SVGLength.SVG_LENGTHTYPE_PT:
return pixelsToNumber(v * 25.4f / (72 * f), e, d, c);
case SVGLength.SVG_LENGTHTYPE_PC:
return pixelsToNumber(v * 25.4f / (6 * f), e, d, c);
case SVGLength.SVG_LENGTHTYPE_EMS:
return pixelsToNumber(emsToPixels(v, e, d, c), e, d, c);
case SVGLength.SVG_LENGTHTYPE_EXS:
return pixelsToNumber(exsToPixels(v, e, d, c), e, d, c);
case SVGLength.SVG_LENGTHTYPE_PERCENTAGE:
return pixelsToNumber(percentagesToPixels(v, e, d, c), e, d, c);
default:
throw new RuntimeException
(formatMessage("invalid.svg.unit",
new Object[] { new Integer(t) }));
}
*/
}
/**
* Converts a pixels units to user space units.
* @param v the length value.
* @param e the element.
* @param d HORIZONTAL_LENGTH, VERTICAL_LENGTH or OTHER_LENGTH.
* @param c The context.
* @exception RuntimeException If an invalid unit type is specified.
*/
/* protected static float pixelsToNumber(float v, SVGElement e, short d,
Context c) {
// Compute the current transformation matrix (CTM).
AffineTransform ctm = null;
for (Element t = e;
t != null;
t = HiddenChildElementSupport.getParentElement(t)) {
if (t instanceof SVGTransformable) {
if (ctm == null) {
ctm = new AffineTransform();
}
String s = t.getAttributeNS(null, "transform");
Reader r = new StringReader(s);
ParserFactory pf = c.getParserFactory();
AffineTransform at;
at = AWTTransformProducer.createAffineTransform(r, pf);
ctm.preConcatenate(at);
} else if (t == e) {
break;
} else if (t instanceof SVGSVGElement) {
SVGSVGElement elt = (SVGSVGElement)t;
// !!! Use a parser for SVGLength
SVGLength len = elt.getWidth().getBaseVal();
float w = svgToUserSpace(len.getUnitType(),
len.getValueInSpecifiedUnits(),
elt,
HORIZONTAL_LENGTH,
c);
len = elt.getHeight().getBaseVal();
float h = svgToUserSpace(len.getUnitType(),
len.getValueInSpecifiedUnits(),
elt,
VERTICAL_LENGTH,
c);
AffineTransform at;
at = SVGUtilities.getPreserveAspectRatioTransform
((SVGElement)t, w, h, c.getParserFactory());
ctm.preConcatenate(at);
break;
}
}
if (ctm == null) {
return v;
}
try {
ctm = ctm.createInverse();
} catch (NoninvertibleTransformException ex) {
throw new RuntimeException(ex.getMessage());
}
Point2D pt1 = new Point2D.Float();
Point2D pt2;
if (d == OTHER_LENGTH) {
SVGSVGElement svg = c.getViewport();
if (svg == null) {
return v;
}
// !!! Use a parser for SVGLength
SVGLength len = svg.getWidth().getBaseVal();
double dx = svgToUserSpace(len.getUnitType(),
len.getValueInSpecifiedUnits(),
svg,
HORIZONTAL_LENGTH,
c);
len = svg.getHeight().getBaseVal();
double dy = svgToUserSpace(len.getUnitType(),
len.getValueInSpecifiedUnits(),
svg,
VERTICAL_LENGTH,
c);
double vppx = Math.sqrt(dx * dx + dy * dy);
pt2 = new Point2D.Float((float)dx, (float)dy);
pt1 = ctm.transform(pt1, pt1);
pt2 = ctm.transform(pt2, pt2);
dx = pt2.getX() - pt1.getX();
dy = pt2.getY() - pt1.getY();
double vpduser = Math.sqrt(dx * dx + dy * dy);
return (float)(v * vpduser / vppx);
} else {
pt2 = (d == HORIZONTAL_LENGTH)
? new Point2D.Float(v, 0)
: new Point2D.Float(0, v);
pt1 = ctm.transform(pt1, pt1);
pt2 = ctm.transform(pt2, pt2);
double dx = pt2.getX() - pt1.getX();
double dy = pt2.getY() - pt1.getY();
int sgn = (v < 0) ? -1 : 1;
return (float)(sgn * Math.sqrt(dx * dx + dy * dy));
}
}
*/
/**
* Converts pixels units to ems units.
* @param v the length value.
* @param e the element.
* @param d HORIZONTAL_LENGTH, VERTICAL_LENGTH or OTHER_LENGTH.
* @param c The context.
* @exception RuntimeException If an invalid unit type is specified.
*/
protected static float pixelsToEms(float v, SVGElement e, short d,
Context c) {
if (e == null) {
throw new RuntimeException
(Messages.formatMessage("element.needed", null));
}
CSSPrimitiveValue val = c.getFontSize(e);
short type = val.getPrimitiveType();
return v / cssToUserSpace
(type,
val.getFloatValue(type),
(SVGElement)HiddenChildElementSupport.getParentElement(e),
d,
c);
}
/**
* Converts ems units to pixels units.
* @param v the length value.
* @param e the element.
* @param d HORIZONTAL_LENGTH, VERTICAL_LENGTH or OTHER_LENGTH.
* @param c The context.
* @exception RuntimeException If an invalid unit type is specified.
*/
protected static float emsToPixels(float v, SVGElement e, short d,
Context c) {
if (e == null) {
throw new RuntimeException
(Messages.formatMessage("element.needed", null));
}
CSSPrimitiveValue val = c.getFontSize(e);
short type = val.getPrimitiveType();
return v * cssToUserSpace
(type,
val.getFloatValue(type),
(SVGElement)HiddenChildElementSupport.getParentElement(e),
d,
c);
}
/**
* Converts pixels units to exs units.
* @param v the length value.
* @param e the element.
* @param d HORIZONTAL_LENGTH, VERTICAL_LENGTH or OTHER_LENGTH.
* @param c The context.
* @exception RuntimeException If an invalid unit type is specified.
*/
protected static float pixelsToExs(float v, SVGElement e, short d,
Context c) {
if (e == null) {
throw new RuntimeException
(Messages.formatMessage("element.needed", null));
}
CSSPrimitiveValue val = c.getFontSize(e);
short type = val.getPrimitiveType();
float fs = cssToUserSpace
(type,
val.getFloatValue(type),
(SVGElement)HiddenChildElementSupport.getParentElement(e),
d,
c);
float xh = c.getXHeight(e);
return v / xh / fs;
}
/**
* Converts exs units to pixels units.
* @param v the length value.
* @param e the element.
* @param d HORIZONTAL_LENGTH, VERTICAL_LENGTH or OTHER_LENGTH.
* @param c The context.
* @exception RuntimeException If an invalid unit type is specified.
*/
protected static float exsToPixels(float v, SVGElement e, short d,
Context c) {
if (e == null) {
throw new RuntimeException
(Messages.formatMessage("element.needed", null));
}
CSSPrimitiveValue val = c.getFontSize(e);
short type = val.getPrimitiveType();
float fs = cssToUserSpace
(type,
val.getFloatValue(type),
(SVGElement)HiddenChildElementSupport.getParentElement(e),
d,
c);
float xh = c.getXHeight(e);
return v * xh * fs;
}
/**
* Converts percentages units to pixels units.
* @param v the length value.
* @param e the element.
* @param d HORIZONTAL_LENGTH, VERTICAL_LENGTH or OTHER_LENGTH.
* @param c The context.
* @exception RuntimeException If an invalid unit type is specified.
*/
protected static float pixelsToPercentages(float v, SVGElement e, short d,
Context c) {
if (e == null) {
throw new RuntimeException
(Messages.formatMessage("element.needed", null));
}
if (d == HORIZONTAL_LENGTH) {
float w = c.getViewportWidth();
return v * 100 / w;
} else if (d == VERTICAL_LENGTH) {
float h = c.getViewportHeight();
return v * 100 / h;
} else {
double w = c.getViewportWidth();
double h = c.getViewportHeight();
double vpp = Math.sqrt(w * w + h * h) / Math.sqrt(2);
return (float)(v * 100 / vpp);
}
}
/**
* Converts percentages units to pixels units.
* @param v the length value.
* @param e the element.
* @param d HORIZONTAL_LENGTH, VERTICAL_LENGTH or OTHER_LENGTH.
* @param c The context.
* @exception RuntimeException If an invalid unit type is specified.
*/
protected static float percentagesToPixels(float v, SVGElement e, short d,
Context c) {
if (e == null) {
throw new RuntimeException
(Messages.formatMessage("element.needed", null));
}
if (d == HORIZONTAL_LENGTH) {
float w = c.getViewportWidth();
return w * v / 100;
} else if (d == VERTICAL_LENGTH) {
float h = c.getViewportHeight();
return h * v / 100;
} else {
double w = c.getViewportWidth();
double h = c.getViewportHeight();
double vpp = Math.sqrt(w * w + h * h) / Math.sqrt(2);
return (float)(vpp * v / 100);
}
}
/**
* An utility method to implement Context.getFontSize(SVGElement e).
*/
public static CSSPrimitiveValue getFontSize(SVGElement e,
CSSStyleDeclaration d) {
return(CSSPrimitiveValue)d.getPropertyCSSValue
(CSSConstants.CSS_FONT_SIZE_PROPERTY);
}
/**
* Converts a SVG length value to screen pixels.
* @param value the length value
* @param e the element.
* @param d HORIZONTAL_LENGTH, VERTICAL_LENGTH or OTHER_LENGTH.
* @param c The context.
* @exception RuntimeException If an invalid unit type is specified.
*/
public static float svgToUserSpace(String value, SVGElement e, short d,
Context c) {
if (value.length() == 0) {
return 0;
}
LengthParser p = new LengthParser();
UnitResolver ur = new UnitResolver();
p.setLengthHandler(ur);
p.parse(new StringReader(value));
return svgToUserSpace(ur.unit, ur.value, e, d, c);
}
/**
* A simple class that can convert units.
*/
public static class UnitResolver implements LengthHandler {
/** The length value. */
public float value;
/** The length type. */
public short unit = SVGLength.SVG_LENGTHTYPE_NUMBER;
/**
* Implements {@link LengthHandler#startLength()}.
*/
public void startLength() throws ParseException {
}
/**
* Implements {@link LengthHandler#lengthValue(float)}.
*/
public void lengthValue(float v) throws ParseException {
this.value = v;
}
/**
* Implements {@link LengthHandler#em()}.
*/
public void em() throws ParseException {
this.unit = SVGLength.SVG_LENGTHTYPE_EMS;
}
/**
* Implements {@link LengthHandler#ex()}.
*/
public void ex() throws ParseException {
this.unit = SVGLength.SVG_LENGTHTYPE_EXS;
}
/**
* Implements {@link LengthHandler#in()}.
*/
public void in() throws ParseException {
this.unit = SVGLength.SVG_LENGTHTYPE_IN;
}
/**
* Implements {@link LengthHandler#cm()}.
*/
public void cm() throws ParseException {
this.unit = SVGLength.SVG_LENGTHTYPE_CM;
}
/**
* Implements {@link LengthHandler#mm()}.
*/
public void mm() throws ParseException {
this.unit = SVGLength.SVG_LENGTHTYPE_MM;
}
/**
* Implements {@link LengthHandler#pc()}.
*/
public void pc() throws ParseException {
this.unit = SVGLength.SVG_LENGTHTYPE_PC;
}
/**
* Implements {@link LengthHandler#pt()}.
*/
public void pt() throws ParseException {
this.unit = SVGLength.SVG_LENGTHTYPE_PT;
}
/**
* Implements {@link LengthHandler#px()}.
*/
public void px() throws ParseException {
this.unit = SVGLength.SVG_LENGTHTYPE_PX;
}
/**
* Implements {@link LengthHandler#percentage()}.
*/
public void percentage() throws ParseException {
this.unit = SVGLength.SVG_LENGTHTYPE_PERCENTAGE;
}
/**
* Implements {@link LengthHandler#endLength()}.
*/
public void endLength() throws ParseException {
}
}
/**
* Holds the informations needed to compute the units.
*/
public interface Context {
/**
* Returns the pixel to mm factor.
*/
float getPixelToMM();
/**
* Returns the font-size medium value in pt.
*/
float getMediumFontSize();
/**
* Returns the font-size value.
*/
CSSPrimitiveValue getFontSize(SVGElement e);
/**
* Returns the x-height value.
*/
float getXHeight(SVGElement e);
/**
* Returns the viewport width used to compute units.
*/
float getViewportWidth();
/**
* Returns the viewport height used to compute units.
*/
float getViewportHeight();
}
}
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