iText kernel.jar Source Code
kernel.jar is a component in iText Java library to provide low-level functionalities.
iText Java library allows you to generate and manage PDF documents.
The Source Code files are provided together with the JAR file in the binary packge like iText7-Core-7.1.4.zip. You can download it at iText 7 Core Download site.
You can compile it to generate your JAR file, using kernel.pom as the build configuration file.
The source code of kernel-7.1.4.jar is provided below:
✍: FYIcenter.com
⏎ com/itextpdf/kernel/pdf/canvas/CanvasGraphicsState.java
/*
This file is part of the iText (R) project.
Copyright (c) 1998-2018 iText Group NV
Authors: Bruno Lowagie, Paulo Soares, et al.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License version 3
as published by the Free Software Foundation with the addition of the
following permission added to Section 15 as permitted in Section 7(a):
FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
OF THIRD PARTY RIGHTS
This program 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program; if not, see http://www.gnu.org/licenses or write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA, 02110-1301 USA, or download the license from the following URL:
http://itextpdf.com/terms-of-use/
The interactive user interfaces in modified source and object code versions
of this program must display Appropriate Legal Notices, as required under
Section 5 of the GNU Affero General Public License.
In accordance with Section 7(b) of the GNU Affero General Public License,
a covered work must retain the producer line in every PDF that is created
or manipulated using iText.
You can be released from the requirements of the license by purchasing
a commercial license. Buying such a license is mandatory as soon as you
develop commercial activities involving the iText software without
disclosing the source code of your own applications.
These activities include: offering paid services to customers as an ASP,
serving PDFs on the fly in a web application, shipping iText with a closed
source product.
For more information, please contact iText Software Corp. at this
address: sales@itextpdf.com
*/
package com.itextpdf.kernel.pdf.canvas;
import com.itextpdf.kernel.colors.Color;
import com.itextpdf.kernel.colors.DeviceGray;
import com.itextpdf.kernel.font.PdfFont;
import com.itextpdf.kernel.geom.Matrix;
import com.itextpdf.kernel.pdf.PdfArray;
import com.itextpdf.kernel.pdf.PdfDictionary;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfName;
import com.itextpdf.kernel.pdf.PdfNumber;
import com.itextpdf.kernel.pdf.PdfObject;
import com.itextpdf.kernel.pdf.extgstate.PdfExtGState;
import java.io.Serializable;
import java.util.Arrays;
/**
* This class is designed for internal usage. <br>
* Use <code>PdfExtGState</code> class and <code>PdfCanvas#setExtGState()</code> method for setting extended graphics properties.
*/
public class CanvasGraphicsState implements Serializable {
private static final long serialVersionUID = -9151840268986283292L;
/**
* The current transformation matrix, which maps positions from user coordinates to device coordinates.
* <p>
* We use an identity matrix as a default value, but in spec a default value is:
* "a matrix that transforms default user coordinates to device coordinates".
*/
private Matrix ctm = new Matrix();
// color
private Color strokeColor = DeviceGray.BLACK;
private Color fillColor = DeviceGray.BLACK;
// text state
private float charSpacing = 0f;
private float wordSpacing = 0f;
private float scale = 100f; // horizontal scaling
private float leading = 0f;
private PdfFont font;
private float fontSize;
private int textRenderingMode = PdfCanvasConstants.TextRenderingMode.FILL;
private float textRise = 0f;
private boolean textKnockout = true;
private float lineWidth = 1f;
private int lineCapStyle = PdfCanvasConstants.LineCapStyle.BUTT;
private int lineJoinStyle = PdfCanvasConstants.LineJoinStyle.MITER;
private float miterLimit = 10f;
/**
* A description of the dash pattern to be used when paths are stroked. Default value is solid line.
* <p>
* The line dash pattern is expressed as an array of the form [ dashArray dashPhase ],
* where dashArray is itself an array and dashPhase is an integer.
* <p>
* An empty dash array (first element in the array) and zero phase (second element in the array)
* can be used to restore the dash pattern to a solid line.
*/
private PdfArray dashPattern = new PdfArray(Arrays.asList(new PdfObject[]{new PdfArray(), new PdfNumber(0)}));
private PdfName renderingIntent = PdfName.RelativeColorimetric;
private boolean automaticStrokeAdjustment = false;
private PdfObject blendMode = PdfName.Normal;
private PdfObject softMask = PdfName.None;
// alpha constant
private float strokeAlpha = 1f;
private float fillAlpha = 1f;
// alpha source
private boolean alphaIsShape = false;
private boolean strokeOverprint = false;
private boolean fillOverprint = false;
private int overprintMode = 0;
private PdfObject blackGenerationFunction;
private PdfObject blackGenerationFunction2;
private PdfObject underColorRemovalFunction;
private PdfObject underColorRemovalFunction2;
private PdfObject transferFunction;
private PdfObject transferFunction2;
private PdfObject halftone;
private float flatnessTolerance = 1f;
private Float smoothnessTolerance;
private PdfObject htp;
/**
* Internal empty and default constructor.
*/
protected CanvasGraphicsState() {
}
/**
* Copy constructor.
*
* @param source the Graphics State to copy from
*/
public CanvasGraphicsState(CanvasGraphicsState source) {
copyFrom(source);
}
/**
* Updates this object with the values from a dictionary.
*
* @param extGState the dictionary containing source parameters
*/
public void updateFromExtGState(PdfDictionary extGState) {
updateFromExtGState(new PdfExtGState(extGState), extGState.getIndirectReference() == null ? null : extGState.getIndirectReference().getDocument());
}
/**
* @return current transformation matrix.
*/
public Matrix getCtm() {
return ctm;
}
/**
* Updates current transformation matrix.
*/
public void updateCtm(float a, float b, float c, float d, float e, float f) {
updateCtm(new Matrix(a, b, c, d, e, f));
}
/**
* Updates current transformation matrix.
*
* @param newCtm new current transformation matrix.
*/
public void updateCtm(Matrix newCtm) {
ctm = newCtm.multiply(ctm);
}
public Color getFillColor() {
return fillColor;
}
public void setFillColor(Color fillColor) {
this.fillColor = fillColor;
}
public Color getStrokeColor() {
return strokeColor;
}
public void setStrokeColor(Color strokeColor) {
this.strokeColor = strokeColor;
}
public float getLineWidth() {
return lineWidth;
}
public void setLineWidth(float lineWidth) {
this.lineWidth = lineWidth;
}
public int getLineCapStyle() {
return lineCapStyle;
}
public void setLineCapStyle(int lineCapStyle) {
this.lineCapStyle = lineCapStyle;
}
public int getLineJoinStyle() {
return lineJoinStyle;
}
public void setLineJoinStyle(int lineJoinStyle) {
this.lineJoinStyle = lineJoinStyle;
}
public float getMiterLimit() {
return miterLimit;
}
public void setMiterLimit(float miterLimit) {
this.miterLimit = miterLimit;
}
public PdfArray getDashPattern() {
return dashPattern;
}
public void setDashPattern(PdfArray dashPattern) {
this.dashPattern = dashPattern;
}
public PdfName getRenderingIntent() {
return renderingIntent;
}
public void setRenderingIntent(PdfName renderingIntent) {
this.renderingIntent = renderingIntent;
}
public float getFontSize() {
return fontSize;
}
public void setFontSize(float fontSize) {
this.fontSize = fontSize;
}
public PdfFont getFont() {
return font;
}
public void setFont(PdfFont font) {
this.font = font;
}
public int getTextRenderingMode() {
return textRenderingMode;
}
public void setTextRenderingMode(int textRenderingMode) {
this.textRenderingMode = textRenderingMode;
}
public float getTextRise() {
return textRise;
}
public void setTextRise(float textRise) {
this.textRise = textRise;
}
public float getFlatnessTolerance() {
return flatnessTolerance;
}
public void setFlatnessTolerance(float flatnessTolerance) {
this.flatnessTolerance = flatnessTolerance;
}
public void setWordSpacing(float wordSpacing) {
this.wordSpacing = wordSpacing;
}
public float getWordSpacing() {
return wordSpacing;
}
public void setCharSpacing(float characterSpacing) {
this.charSpacing = characterSpacing;
}
public float getCharSpacing() {
return charSpacing;
}
public float getLeading() {
return leading;
}
public void setLeading(float leading) {
this.leading = leading;
}
public float getHorizontalScaling() {
return scale;
}
public void setHorizontalScaling(float scale) {
this.scale = scale;
}
public boolean getStrokeOverprint() {
return strokeOverprint;
}
public boolean getFillOverprint() {
return fillOverprint;
}
public int getOverprintMode() {
return overprintMode;
}
public PdfObject getBlackGenerationFunction() {
return blackGenerationFunction;
}
public PdfObject getBlackGenerationFunction2() {
return blackGenerationFunction2;
}
public PdfObject getUnderColorRemovalFunction() {
return underColorRemovalFunction;
}
public PdfObject getUnderColorRemovalFunction2() {
return underColorRemovalFunction2;
}
public PdfObject getTransferFunction() {
return transferFunction;
}
public PdfObject getTransferFunction2() {
return transferFunction2;
}
public PdfObject getHalftone() {
return halftone;
}
public Float getSmoothnessTolerance() {
return smoothnessTolerance;
}
public boolean getAutomaticStrokeAdjustment() {
return automaticStrokeAdjustment;
}
public PdfObject getBlendMode() {
return blendMode;
}
public PdfObject getSoftMask() {
return softMask;
}
public float getStrokeOpacity() {
return strokeAlpha;
}
public float getFillOpacity() {
return fillAlpha;
}
public boolean getAlphaIsShape() {
return alphaIsShape;
}
public boolean getTextKnockout() {
return textKnockout;
}
public PdfObject getHTP() {
return htp;
}
/**
* Updates current graphic state with values from extended graphic state dictionary.
*
* @param extGState the wrapper around the extended graphic state dictionary
*/
public void updateFromExtGState(PdfExtGState extGState) {
updateFromExtGState(extGState, null);
}
/**
* Updates current graphic state with values from extended graphic state dictionary.
*
* @param extGState the wrapper around the extended graphic state dictionary
* @param pdfDocument the document to retrieve fonts from. Needed when the newly created fonts are used
*/
void updateFromExtGState(PdfExtGState extGState, PdfDocument pdfDocument) {
Float lw = extGState.getLineWidth();
if (lw != null)
lineWidth = (float) lw;
Integer lc = extGState.getLineCapStyle();
if (lc != null)
lineCapStyle = (int) lc;
Integer lj = extGState.getLineJoinStyle();
if (lj != null)
lineJoinStyle = (int) lj;
Float ml = extGState.getMiterLimit();
if (ml != null)
miterLimit = (float) ml;
PdfArray d = extGState.getDashPattern();
if (d != null)
dashPattern = d;
PdfName ri = extGState.getRenderingIntent();
if (ri != null)
renderingIntent = ri;
Boolean op = extGState.getStrokeOverprintFlag();
if (op != null)
strokeOverprint = (boolean) op;
op = extGState.getFillOverprintFlag();
if (op != null)
fillOverprint = (boolean) op;
Integer opm = extGState.getOverprintMode();
if (opm != null)
overprintMode = (int) opm;
PdfArray fnt = extGState.getFont();
if (fnt != null) {
PdfDictionary fontDictionary = fnt.getAsDictionary(0);
if (this.font == null || this.font.getPdfObject() != fontDictionary) {
this.font = pdfDocument.getFont(fontDictionary);
}
PdfNumber fntSz = fnt.getAsNumber(1);
if (fntSz != null)
this.fontSize = fntSz.floatValue();
}
PdfObject bg = extGState.getBlackGenerationFunction();
if (bg != null)
blackGenerationFunction = bg;
PdfObject bg2 = extGState.getBlackGenerationFunction2();
if (bg2 != null)
blackGenerationFunction2 = bg2;
PdfObject ucr = extGState.getUndercolorRemovalFunction();
if (ucr != null)
underColorRemovalFunction = ucr;
PdfObject ucr2 = extGState.getUndercolorRemovalFunction2();
if (ucr2 != null)
underColorRemovalFunction2 = ucr2;
PdfObject tr = extGState.getTransferFunction();
if (tr != null)
transferFunction = tr;
PdfObject tr2 = extGState.getTransferFunction2();
if (tr2 != null)
transferFunction2 = tr2;
PdfObject ht = extGState.getHalftone();
if (ht != null)
halftone = ht;
PdfObject local_htp = extGState.getPdfObject().get(PdfName.HTP);
if (local_htp != null)
this.htp = local_htp;
Float fl = extGState.getFlatnessTolerance();
if (fl != null)
flatnessTolerance = (float) fl;
Float sm = extGState.getSmothnessTolerance();
if (sm != null)
smoothnessTolerance = sm;
Boolean sa = extGState.getAutomaticStrokeAdjustmentFlag();
if (sa != null)
automaticStrokeAdjustment = (boolean) sa;
PdfObject bm = extGState.getBlendMode();
if (bm != null)
blendMode = bm;
PdfObject sMask = extGState.getSoftMask();
if (sMask != null)
softMask = sMask;
Float ca = extGState.getStrokeOpacity();
if (ca != null)
strokeAlpha = (float) ca;
ca = extGState.getFillOpacity();
if (ca != null)
fillAlpha = (float) ca;
Boolean ais = extGState.getAlphaSourceFlag();
if (ais != null)
alphaIsShape = (boolean) ais;
Boolean tk = extGState.getTextKnockoutFlag();
if (tk != null)
textKnockout = (boolean) tk;
}
private void copyFrom(CanvasGraphicsState source) {
this.ctm = source.ctm;
this.strokeColor = source.strokeColor;
this.fillColor = source.fillColor;
this.charSpacing = source.charSpacing;
this.wordSpacing = source.wordSpacing;
this.scale = source.scale;
this.leading = source.leading;
this.font = source.font;
this.fontSize = source.fontSize;
this.textRenderingMode = source.textRenderingMode;
this.textRise = source.textRise;
this.textKnockout = source.textKnockout;
this.lineWidth = source.lineWidth;
this.lineCapStyle = source.lineCapStyle;
this.lineJoinStyle = source.lineJoinStyle;
this.miterLimit = source.miterLimit;
this.dashPattern = source.dashPattern;
this.renderingIntent = source.renderingIntent;
this.automaticStrokeAdjustment = source.automaticStrokeAdjustment;
this.blendMode = source.blendMode;
this.softMask = source.softMask;
this.strokeAlpha = source.strokeAlpha;
this.fillAlpha = source.fillAlpha;
this.alphaIsShape = source.alphaIsShape;
this.strokeOverprint = source.strokeOverprint;
this.fillOverprint = source.fillOverprint;
this.overprintMode = source.overprintMode;
this.blackGenerationFunction = source.blackGenerationFunction;
this.blackGenerationFunction2 = source.blackGenerationFunction2;
this.underColorRemovalFunction = source.underColorRemovalFunction;
this.underColorRemovalFunction2 = source.underColorRemovalFunction2;
this.transferFunction = source.transferFunction;
this.transferFunction2 = source.transferFunction2;
this.halftone = source.halftone;
this.flatnessTolerance = source.flatnessTolerance;
this.smoothnessTolerance = source.smoothnessTolerance;
this.htp = source.htp;
}
}
⏎ com/itextpdf/kernel/pdf/canvas/CanvasGraphicsState.java
Or download all of them as a single archive file:
File name: kernel-7.1.4-sources.jar File size: 1201221 bytes Release date: 2018-10-09 Download
⇐ Download and Install iText7-Core-7.1.4.zip
2010-02-18, 85169👍, 0💬
