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    • com.adobe.xfa.svg.SVGNode Maven / Gradle / Ivy

    There is a newer version: 2024.11.18751.20241128T090041Z-241100
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    package com.adobe.xfa.svg;

import com.adobe.xfa.Attribute;
import com.adobe.xfa.StringAttr;
import com.adobe.xfa.Element;
import com.adobe.xfa.Node;
import com.adobe.xfa.ut.ExFull;
import com.adobe.xfa.ut.ResId;
import com.adobe.xfa.ut.UnitSpan;

/**
 * SVGNode is alot like GenericNode.  It's a single class that represents many SVG elements.
 *
 * @exclude from published api.
 */
public class SVGNode extends Element {
	
	
	public SVGNode(Element parent, Node prevSibling) {
		super(parent, prevSibling, null, null, null, null, -1, null);
		inhibitPrettyPrint(true);
	}
	
	/**
	 * @see Element#getAttribute(int)
	 * @exclude from published api.
	 */
	public Attribute defaultAttribute(int eTag)	{
		if ((getClassTag() == SVG.TSPANTAG ||
			 getClassTag() == SVG.ALTGLYPHTAG) && 
			(eTag == SVG.FILLTAG ||
			 eTag == SVG.FONTFAMILYTAG ||
			 eTag == SVG.FONTSIZETAG ||
			 eTag == SVG.FONTSTYLETAG ||
			 eTag == SVG.FONTWEIGHTTAG ||
			 eTag == SVG.CODEPAGETAG))
		{
			Element poParentImpl = getXFAParent();
			if (poParentImpl != null)
				return poParentImpl.getAttribute(eTag);
		}

		// Not special case, so let the base class handle it
		return super.defaultAttribute(eTag);
	}

	public Attribute getAttribute(int eTag, boolean bPeek, boolean bValidate) {
		if (!bPeek && getClassTag() == SVG.TSPANTAG || getClassTag() == SVG.ALTGLYPHTAG) {
			Attribute a = super.getAttribute(eTag, true, false);

			// If this attribute is not specified, query our parent 
			// element
			if (a == null &&
				(eTag == SVG.FILLTAG ||
				 eTag == SVG.FONTFAMILYTAG ||
				 eTag == SVG.FONTSIZETAG ||
				 eTag == SVG.FONTSTYLETAG ||
				 eTag == SVG.FONTWEIGHTTAG ||
				 eTag == SVG.CODEPAGETAG))
			{
				Element poParentImpl = getXFAParent();
				if (poParentImpl != null)
					return poParentImpl.getAttribute(eTag, bPeek, bValidate);
			}
		}
		return super.getAttribute(eTag, bPeek, bValidate);
	}
	
   /**
	 * Check if this node is an SVG g element and if it defines either the
	 * caption region or content region of the XFA box model.
	 * 
	 * @param bCheckCaption --
	 *            if TRUE check caption else check content
	 * @exclude from published api.
	 */
	boolean isRegionGroup(boolean bCheckCaption) {
		// TODO: JavaPort
		throw new ExFull(ResId.UNSUPPORTED_OPERATION, "SVGNode#isRegionGroup");
		// The default region group is "content",
		// so if we don't find a  element make sure our
		// return value reflects the default.
// boolean bDefault = (bCheckCaption == false);
//
// if (getClassTag() != SVG.GTAG)
// return false;
//
// Element desc = peekElement(SVG.DESCTAG, false, 0);
//
// if (desc == null)
// return bDefault;
//		
// TextData t = desc.peekElement(SVG.TEXTDATATAG, false, 0);
//
// if (t.isNull())
// return bDefault;
//
// if (bCheckCaption)
// return t.getValue().equals(SVG.XFACAPTION);
//
// return t.getValue().equals(SVG.XFACONTENT);
	}

   /**
	 * Find the SVG <gesc> element that corresponds to the caption region
	 * of the XFA box model. This node is identified by having a <desc>
	 * element with the text: "Caption"
	 * 
	 * @param bCheckCaption
	 *            if true get the caption node else get content
	 * @return the caption group. Null object if not found.
	 * @exclude from published api.
	 */
	public SVGNode getRegionGroup(boolean bCheckCaption) {
		int eTag = getClassTag();
		switch (eTag)
		{
			case SVG.GTAG:
			{
				if (isRegionGroup(bCheckCaption))
					return this;
				
				SVGNode parent = (SVGNode)getXFAParent();
				if (parent != null) {
					return parent.getRegionGroup(bCheckCaption);
				}
			}
			case SVG.SVGTAG: {
				// We expect to find the group under the svg element.
				SVGNode child = (SVGNode)getFirstXFAChild();
				while (child != null) {
					if (child.getClassTag() == SVG.GTAG
							&& child.isRegionGroup(bCheckCaption)) {
						return child;
					}
					child = (SVGNode)child.getNextXFASibling();
				}
				return null;

			}
			default: {
				SVGNode parent = (SVGNode)getXFAParent();
				while (parent instanceof SVGNode) {
					if (parent.getClassTag() == SVG.SVGTAG)
						return parent.getRegionGroup(bCheckCaption);
					parent = (SVGNode)parent.getXFAParent();
				}
			}
		}
		return null;		
	}

	/**
	 * Convenience method for setting an attribute that's represented as a
	 * measurement value
	 * 
	 * @param eTag -
	 *            the attribute to set
	 * @param value -
	 *            the value of the attribute
	 */
	void setMeasurement(int eTag, UnitSpan value) {
		String sTemp = Integer.toString(value.valueAsUnit(UnitSpan.POINTS_1K));
		setAttribute(new StringAttr(SVGSchema.getSVGSchema().getAtom(eTag), sTemp), eTag);
	}

	/**
	 * Convenience method for getting an attribute that's represented as a
	 * measurement value
	 * 
	 * @param eTag -
	 *            the attribute to get
	 * @return value - the value of the attribute
	 */
	public UnitSpan getMeasurement(int eTag) {

		String sNum = getAttribute(eTag).toString();
		int nNum = Integer.parseInt(sNum);
		return new UnitSpan(UnitSpan.POINTS_1K, UnitSpan.POINTS_1K, nNum);
	}

	/**
	 * Convenience method for getting the offset and rotation out of a transform attribute
	 * in the form of transform="translate(x y) rotate(r)".  Note that this method does
	 * not handle any other transform operations.
	 * @param x the parsed X offset
	 * @param y the parsed Y Offset
	 * @param r the rotation angle
	 */
	public void parseTransform(UnitSpan x, UnitSpan y, int r) {
	// JavaPort: Need to figure out how to return these 3 values...
		throw new ExFull(ResId.UNSUPPORTED_OPERATION, "SVGNode#parseTransform");
	// void parseTransform(jfUnitSpan& x, jfUnitSpan& y, long& r)
/*		String transform = getAttribute(SVG.TRANSFORMTAG).toString();

		final int X = 0;
		final int Y = 1;
		final int R = 2;
		final int NONE = 3;

		int parsingState=NONE;	// NONE - nothing being parsed
							// X - translate X being parsed
							// Y - translate Y being parsed
							// R - rotate being parsed
		int vars[] = {0,0,0};
		String[] tokens = transform.split("() ,\t");
		for (int i=0; i 255) r = 255;
		if (g < 0) g = 0;
		if (g > 255) g = 255;
		if (b < 0) b = 0;
		if (b > 255) b = 255;
	 
		int nHexNum = b | (g << 8) | (r << 16);

		String cHexNum = Integer.toString(nHexNum, 16);
		setAttribute(new StringAttr(SVGSchema.getSVGSchema().getAtom(eTag), cHexNum), eTag);

	}

	/**
	 * Get a color encoded as #RRGGBB
	 * @param eTag the attribute to fetch
	 * @param r Red
	 * @param g Green
	 * @param b Blue
	 * @return The color object
	 */
	void getColor(int eTag, int r, int g, int b) {
// JavaPort: Figure out how to return 3 values.
		throw new ExFull(ResId.UNSUPPORTED_OPERATION, "SVGNode#getColor");
//	void getColor(size_t eTag, jfS32& r, jfS32& g, jfS32& b) {
/*		r=0;
		g=0;
		b=0;

		String color = getAttribute(eTag).toString();
		if (color.length() == 0)
			return;
		
		String sNum = color.substring(1,2);
		r = Integer.parseInt(sNum, 16);

		sNum = color.substring(3,2);
		g = Integer.parseInt(sNum, 16);

		sNum = color.substring(5,2);
		b = Integer.parseInt(sNum, 16);*/		
	}

	/**
	 * Get the width of this SVG fragment.
	 * @return the width attribute from the root  element
	 */
	public UnitSpan getSVGWidth() {
		SVGNode svg = this;
		while (svg != null && !svg.isSameClass(SVG.SVGTAG))
		{
			svg = (SVGNode)svg.getXFAParent();
		}
		if (svg == null)
			return UnitSpan.ZERO;

		String sW = svg.getAttribute(SVG.WIDTHTAG).toString();
		return new UnitSpan(sW);
	}

	/**
	 * Get the height of this SVG fragment.
	 * @return the hieght attribute from the root  element
	 */
	public UnitSpan getSVGHeight() {
		SVGNode svg = this;
		while (svg != null && !svg.isSameClass(SVG.SVGTAG))
		{
			svg = (SVGNode)svg.getXFAParent();
		}
		if (svg == null)
			return UnitSpan.ZERO;

		String sH = svg.getAttribute(SVG.HEIGHTTAG).toString();
		return new UnitSpan(sH);	
	}

	/**
	 * Store the Glyphs represented by this node.  This method is used as 
	 * an optimization.  Once an external agent has gone to the trouble of
	 * parsing our content, we allow them to store the result.
	 * This method is appropriate only if the underlying node is an 
	 * @param oFontInstance - the font we resolved to
	 * @param glyphs - The array of glyphs
	 * @param nGlyphs - the number of glyphs in the array
	 */
	public void storeGlyphs(Object oFontInstance, int[] glyphs, int nGlyphs) {
		throw new ExFull(ResId.UNSUPPORTED_OPERATION, "SVGNode#storeGlyphs");
	// JavaPort: TODO 
    //	mFontInstance = oFontInstance;
	//	mpGlyphs = glyphs;
	//	mnGlyphs = nGlyphs;
	}

	/**
	 * Store the text represented by this node.  This method is used as 
	 * an optimization.  Once an external agent has gone to the trouble of
	 * parsing our content, we allow them to store the result.
	 * This method is appropriate only if the underlying node is an 
	 * @param oFontInstance - the font we resolved to
	 * @param text - the text to store
	 */
	public void storeText(Object oFontInstance, String text) {
		throw new ExFull(ResId.UNSUPPORTED_OPERATION, "SVGNode#storeText");
    	// JavaPort: TODO 
//		mFontInstance = oFontInstance;
//		mText = text;
	}

	/**
	 * Get the glyphs that were previously cached with this node.
	 * @param oFontInstance - the font instance for these glyphs
	 * @param nGlyphs - the number of glyphs in the array.
	 * @return the array of glyphs -- NULL if there weren't any.
	 */
	void getGlyphs(Object oFontInstance, int nGlyphs) {
		// TODO JavaPort: Figure out how to return multiple parameters
		throw new ExFull(ResId.UNSUPPORTED_OPERATION, "SVGNode#getGlyphs");
//	jfGlyphID[]	getGlyphs(Object oFontInstance, int& nGlyphs) {
//		oFontInstance = mFontInstance;
//		nGlyphs = mnGlyphs;
//		return mpGlyphs;	
	}

	/**
	 * Get the text that was previously cached with this node.
	 * @param oFontInstance - the font instance for these glyphs
	 * @return the text.  Empty String if there wasn't any.
	 */
	String	getText(Object oFontInstance) {
		throw new ExFull(ResId.UNSUPPORTED_OPERATION, "SVGNode#getText");
//		oFontInstance = mFontInstance;
//		return mText;	
	}
}




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