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#518 Parsing SVG width/height attributes

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This commit is contained in:
Oliver Schmidtmer 2020-01-30 15:54:59 +01:00
parent fb304d6c27
commit 6d2947b080
1 changed files with 22 additions and 14 deletions
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36
imageio/imageio-batik/src/main/java/com/twelvemonkeys/imageio/plugins/svg/SVGImageReader.java
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@ -33,9 +33,11 @@ package com.twelvemonkeys.imageio.plugins.svg;
import com.twelvemonkeys.image.ImageUtil;
import com.twelvemonkeys.imageio.ImageReaderBase;
import com.twelvemonkeys.imageio.util.IIOUtil;
import com.twelvemonkeys.lang.StringUtil;
import org.apache.batik.anim.dom.SVGDOMImplementation;
import org.apache.batik.anim.dom.SVGOMDocument;
import org.apache.batik.bridge.*;
import org.apache.batik.css.parser.CSSLexicalUnit;
import org.apache.batik.dom.util.DOMUtilities;
import org.apache.batik.ext.awt.image.GraphicsUtil;
import org.apache.batik.gvt.CanvasGraphicsNode;
@ -47,6 +49,7 @@ import org.apache.batik.transcoder.*;
import org.apache.batik.transcoder.image.ImageTranscoder;
import org.apache.batik.util.ParsedURL;
import org.apache.batik.util.SVGConstants;
import org.apache.batik.xml.LexicalUnits;
import org.w3c.dom.DOMImplementation;
import org.w3c.dom.Document;
import org.w3c.dom.svg.SVGSVGElement;
@ -324,24 +327,29 @@ public class SVGImageReader extends ImageReaderBase {
}
// ----
SVGSVGElement rootElement = svgDoc.getRootElement();
// get the 'width' and 'height' attributes of the SVG document
Dimension2D docSize = ctx.getDocumentSize();
if (docSize != null) {
defaultWidth = (float) docSize.getWidth();
defaultHeight = (float) docSize.getHeight();
String widthStr = rootElement.getAttributeNS(null, SVGConstants.SVG_WIDTH_ATTRIBUTE);
String heightStr = rootElement.getAttributeNS(null, SVGConstants.SVG_HEIGHT_ATTRIBUTE);
if (!StringUtil.isEmpty(widthStr) && !StringUtil.isEmpty(heightStr)) {
UnitProcessor.Context uctx
= UnitProcessor.createContext(ctx, rootElement);
defaultWidth = UnitProcessor.svgToUserSpace(widthStr, SVGConstants.SVG_WIDTH_ATTRIBUTE, UnitProcessor.HORIZONTAL_LENGTH, uctx);
defaultHeight = UnitProcessor.svgToUserSpace(heightStr, SVGConstants.SVG_HEIGHT_ATTRIBUTE, UnitProcessor.VERTICAL_LENGTH, uctx);
}
else {
defaultWidth = 200;
defaultHeight = 200;
}
SVGSVGElement rootElement = svgDoc.getRootElement();
String viewBoxStr = rootElement.getAttributeNS
(null, SVGConstants.SVG_VIEW_BOX_ATTRIBUTE);
if (viewBoxStr.length() != 0) {
float[] rect = ViewBox.parseViewBoxAttribute(rootElement, viewBoxStr, null);
defaultWidth = rect[2];
defaultHeight = rect[3];
String viewBoxStr = rootElement.getAttributeNS
(null, SVGConstants.SVG_VIEW_BOX_ATTRIBUTE);
if (viewBoxStr.length() != 0) {
float[] rect = ViewBox.parseViewBoxAttribute(rootElement, viewBoxStr, null);
defaultWidth = rect[2];
defaultHeight = rect[3];
}
else {
defaultWidth = 200;
defaultHeight = 200;
}
}
// Hack to work around exception above