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An Open Source JavaFX PDF Viewer
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2016 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
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
*
* ---------------
* Tj.java
* ---------------
*/
package org.jpedal.parser.text;
import java.awt.Font;
import java.awt.Rectangle;
import java.awt.geom.AffineTransform;
import java.awt.geom.Area;
import org.jpedal.PdfDecoderInt;
import org.jpedal.external.ErrorTracker;
import org.jpedal.external.GlyphTracker;
import org.jpedal.fonts.PdfFont;
import org.jpedal.fonts.StandardFonts;
import org.jpedal.fonts.glyph.*;
import org.jpedal.fonts.tt.TTGlyph;
import org.jpedal.objects.GraphicsState;
import org.jpedal.objects.PdfData;
import org.jpedal.objects.TextState;
import org.jpedal.objects.structuredtext.StructuredContentHandler;
import org.jpedal.parser.BaseDecoder;
import org.jpedal.parser.DecoderOptions;
import org.jpedal.parser.ParserOptions;
import org.jpedal.parser.PdfStreamDecoder;
import org.jpedal.render.DynamicVectorRenderer;
import org.jpedal.render.SwingDisplay;
import org.jpedal.utils.Fonts;
import org.jpedal.utils.LogWriter;
import org.jpedal.utils.Matrix;
import org.jpedal.utils.repositories.Vector_Int;
import org.jpedal.utils.repositories.generic.Vector_Rectangle_Int;
/**
* handle conversion of the text operands
*/
public class Tj extends BaseDecoder {
public static boolean showInvisibleText;
private PdfData pdfData;
private PdfFont currentFontData;
private final Vector_Rectangle_Int textAreas;
private final Vector_Int textDirections;
private TextState currentTextState=new TextState();
private final GlyphData glyphData=new GlyphData();
private GlyphTracker customGlyphTracker;
private StructuredContentHandler contentHandler;
/**
* flag to show some fonts might need hinting turned on to display properly
*/
private boolean ttHintingRequired;
/** the text value we decoded from the tj command*/
private String tjTextValue = "";
/**start of ascii escape char*/
static final String[] hex={"�","","","",
"","","","",""," ","
"," ",
"","
","","","","","","",
"","","","","","","",
""," "," "," "," "};
/**gap between characters*/
private float charSpacing;
private final GlyphFactory factory;
private PdfJavaGlyphs glyphs;
private float[][] Trm;
/**used by forms code to read text*/
private boolean returnText;
//private static final int NONE=0;
//private static final int RIGHT=1;
/**co-ords (x1,y1 is top left corner)*/
private float x1;
private float y1;
private float x2;
private float y2;
private float lastWidth,currentWidth;
//if ActualText set store value and use if preference for text extraction
private String actualText;
private final DynamicVectorRenderer current;
private int streamLength;
private float[][] TrmBeforeSpace = new float[3][3];
private boolean isTabRemapped,isCRRemapped,isReturnRemapped;
private final ErrorTracker errorTracker;
public Tj(final ParserOptions parserOptions, final PdfData pdfData, final boolean isXMLExtraction,
final Vector_Rectangle_Int textAreas, final Vector_Int textDirections,
final DynamicVectorRenderer current, final ErrorTracker errorTracker) {
this.parserOptions=parserOptions;
this.pdfData=pdfData;
glyphData.setXMLExtraction(isXMLExtraction);
this.textAreas=textAreas;
this.textDirections=textDirections;
this.current=current;
this.errorTracker=errorTracker;
factory=new T1GlyphFactory(parserOptions.useJavaFX());
}
public Tj(final ParserOptions parserOptions, final Vector_Rectangle_Int textAreas, final Vector_Int textDirections, final DynamicVectorRenderer current, final ErrorTracker errorTracker) {
this.parserOptions=parserOptions;
factory=new T1GlyphFactory(parserOptions.useJavaFX());
this.textAreas=textAreas;
this.textDirections=textDirections;
this.current=current;
this.errorTracker=errorTracker;
}
/**
* Calculate the x coords for text here
* y coords are calculated in the method
* processTextArray(final byte[] stream,int startCommand,int dataPointer)
*/
private void calcCoordinates(final float x, final float[][] Trm, float charSpacing ) {
//clone data so we can manipulate
final float[][] trm=new float[3][3];
for(int xx=0;xx<3;xx++){
System.arraycopy(Trm[xx], 0, trm[xx], 0, 3);
}
x1 = x;
x2 = trm[2][0] - (charSpacing * trm[0][0]);
if (glyphData.isHorizontal()) {
if (trm[1][0] < 0) {
x1 = x + trm[1][0] - (charSpacing * trm[0][0]);
x2 = trm[2][0];
} else if (trm[1][0] > 0) {
x1 = x;
x2 = trm[2][0];
}
} else if (trm[1][0] > 0) {
x1 = trm[2][0];
x2 = x + trm[1][0] - (charSpacing * trm[0][0]);
} else if (trm[1][0] < 0) {
x2 = trm[2][0];
x1 = x + trm[1][0] - (charSpacing * trm[0][0]);
}
}
public String TJ(final TextState currentTextState, final PdfFont currentFontData, final byte[] characterStream, final int
startCommand, final int dataPointer, final boolean multipleTJs) {
this.currentTextState=currentTextState;
this.currentFontData=currentFontData;
this.customGlyphTracker=parserOptions.getCustomGlyphTracker();
this.contentHandler=parserOptions.getContentHandler();
isTabRemapped = currentFontData.getDiffMapping(9)!=null;
isCRRemapped = currentFontData.getDiffMapping(10)!=null;
isReturnRemapped = currentFontData.getDiffMapping(13)!=null;
streamLength=characterStream.length;
glyphs = currentFontData.getGlyphData();
/*set colors*/
if(parserOptions.isRenderText() && gs.getTextRenderType()!=GraphicsState.INVISIBLE){
gs.setStrokeColor(gs.strokeColorSpace.getColor());
gs.setNonstrokeColor(gs.nonstrokeColorSpace.getColor());
}
final StringBuffer current_value =processTextArray(characterStream, startCommand, dataPointer, multiplyer,multipleTJs);
/*get fontsize and ensure positive*/
int fontSize= glyphData.getFontSize();
if(fontSize==0) {
fontSize = (int) currentTextState.getTfs();
}
if(fontSize<0) {
fontSize = -fontSize;
}
//will be null if no content
if (current_value != null && parserOptions.isPageContent()){
String currentColor=null;
//get colour if needed
if(parserOptions.isTextColorExtracted()){
if ((gs.getTextRenderType() & GraphicsState.FILL) == GraphicsState.FILL){
currentColor=gs.nonstrokeColorSpace.getXMLColorToken();
}else{
currentColor=gs.strokeColorSpace.getXMLColorToken();
}
}
if(contentHandler!=null) {
contentHandler.setText(current_value, x1, y1, x2, y2);
} else if (parserOptions.isTextExtracted()) {
/*
* save item and add in graphical elements
*/
pdfData.addRawTextElement(
(charSpacing * Leading.THOUSAND),
currentTextState.writingMode,
Fonts.createFontToken(currentFontData.getFontName(), fontSize),
currentFontData.getCurrentFontSpaceWidth(),
fontSize,
x1,
y1,
x2,
y2,
current_value,
glyphData.getTextLength(), currentColor, glyphData.isXMLExtraction());
}
}
return tjTextValue;
}
private void resetValues(GlyphData glyphData){
glyphData.reset();
TrmBeforeSpace = new float[3][3];
lastWidth = 0;
currentWidth = 0;
/* create temp matrix for current text location and factor in scaling*/
Trm = Matrix.multiply(currentTextState.Tm, gs.CTM);
}
/**
* turn TJ into string and plot. THis routine is long but frequently called so we want all code 'inlined'
*/
private StringBuffer processTextArray(final byte[] stream, int startCommand, final int dataPointer, final float multiplyer, final boolean multipleTJs){
//can be left unset by 2 byte CID glyphs in <> so always ensure off
glyphData.setText(false);
isHTML=current.isHTMLorSVG();
/*
* global and local values
*/
resetValues(glyphData);
final boolean widthIsVertical=currentFontData.isWidthVertical();
final int Tmode=gs.getTextRenderType();
boolean hasContent=false,isMultiple=false; //flag text found as opposed to just spacing
char lastTextChar = 'x';
float TFS = currentTextState.getTfs();
final float rawTFS=TFS;
if(TFS<0) {
TFS = -TFS;
}
final int type=currentFontData.getFontType();
final float spaceWidth = currentFontData.getCurrentFontSpaceWidth();
StringBuffer textData = null;
if(parserOptions.isTextExtracted()) {
textData = new StringBuffer(50); //used to return a value
}
float currentGap;
//flag to show text highlight needs to be shifted up to allow for displacement in Trm
boolean isTextShifted=false;
//roll on at start if necessary
while(stream[startCommand]==91 || stream[startCommand]==10 || stream[startCommand]==13 || stream[startCommand]==32){
if(stream[startCommand]==91) {
isMultiple = true;
}
startCommand++;
}
/*set character size */
glyphData.setDefaultCharSize(currentFontData);
charSpacing = currentTextState.getCharacterSpacing() / TFS;
final float wordSpacing = currentTextState.getWordSpacing() / TFS;
if(multipleTJs){ //allow for consecutive TJ commands
Trm[2][0]=currentTextState.Tm[2][0];
Trm[2][1]=currentTextState.Tm[2][1];
}
/*define matrix used for converting to correctly scaled matrix and multiply to set Trm*/
float[][] temp = new float[3][3];
temp[0][0] = rawTFS * currentTextState.getHorizontalScaling();
temp[1][1] = rawTFS;
temp[2][1] = currentTextState.getTextRise();
temp[2][2] =1;
Trm = Matrix.multiply(temp, Trm);
if(currentFontData.isFontVertical()){
Trm[2][0] -= (Trm[0][0]/2);
Trm[2][1] -= (Trm[1][1]);
}
//check for leading before text and adjust position to include
if(isMultiple && stream[startCommand]!=60 && stream[startCommand]!=40 && stream[startCommand]!=93){
float offset=0;
while(stream[startCommand]!=40 && stream[startCommand]!=60 && stream[startCommand]!=93){
final StringBuilder kerning = new StringBuilder(10);
while(stream[startCommand]!=60 && stream[startCommand]!=40 && stream[startCommand]!=93 && stream[startCommand]!=32){
kerning.append((char)stream[startCommand]);
startCommand++;
}
offset += Float.parseFloat(kerning.toString());
while(stream[startCommand]==32) {
startCommand++;
}
}
//new condition as we did not cover case where text rotated by matrix so
//we were adding 0 * offset which is zero! Fixed for just the case found
//where Trm[0][1]>0 && Trm[1][0]<0
if(Trm[0][0]==0 && Trm[1][1]==0 && Trm[0][1]!=0 && Trm[1][0]!=0){
offset=Trm[0][1]*offset/ Leading.THOUSAND;
Trm[2][1] -= offset;
}else{
offset=Trm[0][0]*offset/ Leading.THOUSAND;
Trm[2][0] -= offset;
}
}
/*
* workout fontScale, direction
*/
final int fontSize=calcFontSize(glyphData,currentTextState,Trm);
/*
* text printing mode to get around problems with PCL printers
*/
Font javaFont=null;
final int textPrint=parserOptions.getTextPrint();
if(textPrint== PdfDecoderInt.STANDARDTEXTSTRINGPRINT && StandardFonts.isStandardFont(currentFontData.getFontName(), true) && parserOptions.isPrinting()){
javaFont= currentFontData.getJavaFontX(fontSize);
}else if(currentFontData.isFontEmbedded && !currentFontData.isFontSubstituted()){
javaFont=null;
}else if((PdfStreamDecoder.useTextPrintingForNonEmbeddedFonts || textPrint!=PdfDecoderInt.NOTEXTPRINT)&& parserOptions.isPrinting()) {
javaFont = currentFontData.getJavaFontX(fontSize);
}
/*extract starting x and y values (we update Trm as we work through text)*/
final float x= Trm[2][0];
//track text needs to be moved up in highlight
if(Trm[1][0]<0 && Trm[0][1]>0 && Trm[1][1]==0 && Trm[0][0]==0) {
isTextShifted = true;
}
/*now work through all glyphs and render/decode*/
int i = startCommand;
StringBuffer buff = null;
if(returnText) {
buff = new StringBuffer(streamLength);
}
boolean resetCoords = true;
final boolean isCID=currentFontData.isCIDFont();
while (i < dataPointer) {
//used by Sanface file to fix spacing issue (only set in specific case)
glyphData.setActualWidth(-1);
//read next value ignoring spaces, tabs etc
i=CharReader.getNextValue(i,stream,glyphData,isCID);
/*either handle glyph, process leading or handle a deliminator*/
if (glyphData.isText()) { //process if still in text
lastTextChar = glyphData.getRawChar(); //remember last char so we can avoid a rollon at end if its a space
//convert escape or turn index into correct glyph allow for stream
if (glyphData.getOpenChar() == 60) {
//check /PDFdata/test_data/baseline_screens/14jan/ASTA invoice - $275.pdf if you alter this code
if (isCID && !currentFontData.isFontSubstituted() && currentFontData.isFontEmbedded && ( stream[i]!='0')){
i=HexTextUtils.getHexCIDValue(stream, i,glyphData, currentFontData, parserOptions);
}else{
i = HexTextUtils.getHexValue(stream, i,glyphData, currentFontData, parserOptions);
}
}else if (lastTextChar == 92 && !isCID) {
i = EscapedTextUtils.getEscapedValue(i, stream,glyphData, currentFontData,streamLength,parserOptions, current);
} else if (isCID){ //could be nonCID cid
i=CIDTextUtils.getCIDCharValues(i,stream, streamLength,glyphData,currentFontData, parserOptions);
}else{
lastTextChar = getValue(lastTextChar,glyphData, currentFontData, current);
}
//Handle extracting CID Identity fonts
if (isHTML && !currentFontData.hasToUnicode() &&
currentFontData.getFontType() == StandardFonts.CIDTYPE0 &&
currentFontData.getGlyphData().isIdentity()){
//Check if proper char has been stored instead
int charToUse=glyphData.getRawChar();
final int valueForHTML=glyphData.getValueForHTML();
if(valueForHTML!=-1){
charToUse=valueForHTML;
glyphData.setValueForHTML(-1);
}
final int rawC = StandardFonts.mapCIDToValidUnicode(currentFontData.getBaseFontName(), charToUse);
glyphData.setUnicodeValue(String.valueOf((char) (rawC)));
}
//Itext likes to use Tabs!
if(!isTabRemapped && glyphData.getRawInt()==9 && currentFontData.isFontSubstituted()){
glyphData.setRawInt(32);
glyphData.set(" ");
}
//MOVE pointer to next location by updating matrix
temp[0][0] = 1;
temp[0][1] = 0;
temp[0][2] = 0;
temp[1][0] = 0;
temp[1][1] = 1;
temp[1][2] = 0;
if(currentFontData.isFontVertical()){
temp[2][1] = -(currentWidth - glyphData.getLeading()); //tx;
temp[2][0] = 0; //ty;
}else{
temp[2][0] = (currentWidth + glyphData.getLeading()); //tx;
temp[2][1] = 0; //ty;
}
temp[2][2] = 1;
Trm = Matrix.multiply(temp, Trm); //multiply to get new Tm
/*save pointer in case its just multiple spaces at end*/
if (glyphData.getRawChar() == ' ' && glyphData.getLastChar() != ' '){
TrmBeforeSpace = Trm;
}
glyphData.setLeading(0); //reset leading
float actualWidth=glyphData.getActualWidth();
if(currentFontData.isCIDFont()){
final int idx=glyphs.getCMAPValue(glyphData.getRawInt());
if(idx>0){
if(glyphs.is1C() && !glyphs.isIdentity()) {
glyphData.setRawInt(idx);
}
actualWidth = currentFontData.getWidth(idx);
}
}
int idx=glyphData.getRawInt();
if(!glyphs.isCorrupted()){
if(currentFontData.isCIDFont() && !glyphs.isIdentity() && !glyphs.hasGIDtoCID()){ //should only be use dif no CIDtoGID used in mapping
final int mappedIdx=glyphs.getConvertedGlyph(idx);
if(mappedIdx!=-1) {
idx = mappedIdx;
}
}else if(currentFontData.getFontType()==StandardFonts.TYPE1){//if a numeric value we need to replace to get correct glyph
final int diff=currentFontData.getDiffChar(idx);
if(diff>0){
glyphData.setRawInt(diff);
}
}
}
if(actualWidth>0){
currentWidth=actualWidth;
}else{
currentWidth = currentFontData.getWidth(idx);
}
/*
* XFA docs can contain non-embedded fonts like Callibri and Myriad Pro
* which have no defined width so in this case we use Arial size instead
*/
if(currentWidth==0 && parserOptions.isXFA()){
final Float value=StandardFonts.getStandardWidth("Arial" , currentFontData.getMappedChar( glyphData.getRawInt(),false));
currentWidth = value!=null? value : 0.0f;
//we need this because code above
//currentWidth = currentFontData.getWidth(idx);
//explicitly caches lastWidth internally so we can reread in HTML code
//by passing in -1.
currentFontData.setLastWidth(currentWidth);
}
//used by HTML
if(isHTML &&
//try to fix issue with THE mapped to The Text in output by seeing if using CAPITAL values
(!currentFontData.isFontSubsetted()&& currentFontData.getFontEncoding(true)==StandardFonts.WIN && (glyphData.getUnicodeValue().charAt(0)-idx)==32)){
glyphData.setUnicodeValue(String.valueOf((char) idx));
}
if(currentWidth==0 && parserOptions.isXFA()){
final String glyfName;
final int rawInt=glyphData.getRawInt();
if(rawInt>255){
glyfName=String.valueOf(rawInt); //may need some debugging for non-standard chars
}else{
glyfName=StandardFonts.getUnicodeChar(StandardFonts.WIN,rawInt); //may need some debugging for non-standard chars
}
currentWidth = currentFontData.getGlyphWidth(glyfName, rawInt, glyphData.getDisplayValue());
}
//debug code to lock out text if not in area
//System.out.println(currentWidth+"=========="+" glyphData.rawInt="+glyphData.getRawInt()+" idx="+idx+" d="+glyphData.getDisplayValue()+"< uni="+glyphData.getUnicodeValue()+"< "+currentFontData+" "+currentFontData.getFontName()+" "+currentFontData.getBaseFontName());
/*
* used by form code to return a value for FormStream.decipherTextFromAP
* There are actually 4 ways we render the text underneath and it was in ONE. Not having the fonts
* map caused one of the alteratives to be used so string was never populated and rest of code broke.
*/
if(returnText) {
buff.append(glyphData.getDisplayValue());
}
/*if we have a valid character and we are rendering, draw it */
currentTextState.setLastKerningAdded(glyphData.getSpacingAdded());
glyphData.setSpacingAdded(0);
if ((parserOptions.isRenderText() && (Tmode!=GraphicsState.INVISIBLE || isHTML)) ||
(Tmode==GraphicsState.CLIPTEXT && parserOptions.isRenderClipText())){
if(javaFont!=null && parserOptions.isPrinting() && (textPrint==PdfDecoderInt.STANDARDTEXTSTRINGPRINT ||
(textPrint==PdfDecoderInt.TEXTSTRINGPRINT || (PdfStreamDecoder.useTextPrintingForNonEmbeddedFonts &&
(!currentFontData.isFontEmbedded || currentFontData.isFontSubstituted()))))){
/*support for TR7*/
if(Tmode==GraphicsState.CLIPTEXT){
/*set values used if rendering as well*/
final boolean isSTD= DecoderOptions.isRunningOnMac ||StandardFonts.isStandardFont(currentFontData.getBaseFontName(),false);
final Area transformedGlyph2= glyphs.getStandardGlyph(Trm, glyphData.getRawInt(), glyphData.getDisplayValue(), currentWidth, isSTD);
if(transformedGlyph2!=null){
gs.addClip(transformedGlyph2);
//current.drawClip(gs) ;
}
current.drawClip(gs,null,true);
}
if(glyphData.getDisplayValue()!=null && !glyphData.getDisplayValue().startsWith("&#")){
if(isHTML) {
current.drawEmbeddedText(Trm, fontSize, null, null, DynamicVectorRenderer.TEXT, gs, null, glyphData.getDisplayValue(), currentFontData, -100);
} else {
current.drawText(Trm, glyphData.getDisplayValue(), gs, Trm[2][0], -Trm[2][1], javaFont);
}
}
}else if(((textPrint!=PdfDecoderInt.TEXTGLYPHPRINT)||(javaFont==null))&&(currentFontData.isFontEmbedded &&
currentFontData.isFontSubstituted() &&((glyphData.getRawInt()==9 && !isTabRemapped) || (glyphData.getRawInt()==10 && !isCRRemapped) || (glyphData.getRawInt()==13 && !isReturnRemapped)))){ //&&
//lose returns which can cause odd display
}else if(((textPrint!=PdfDecoderInt.TEXTGLYPHPRINT)||(javaFont==null))&&(currentFontData.isFontSubstituted() && currentWidth==0 && glyphData.getDisplayValue().charAt(0)==13)){ //remove substituted values so do not enter test below
}else if(((textPrint!=PdfDecoderInt.TEXTGLYPHPRINT)||(javaFont==null))&&(currentFontData.isFontEmbedded)){
renderText(currentWidth, type, Tmode, multiplyer, isTextShifted);
}else if(!glyphData.getDisplayValue().isEmpty() && !glyphData.getDisplayValue().startsWith("&#")) {
JavaTextRenderer.renderTextWithJavaFonts(gs, current, streamType, parserOptions, currentFontData, glyphData, Tmode, currentWidth, isTextShifted,glyphs,Trm);
}
}
/*now we have plotted it we update pointers and extract the text*/
if(currentFontData.isFontVertical()){
currentWidth -= charSpacing;
}else{
currentWidth += charSpacing;
}
if (glyphData.getRawChar() == ' '){ //add word spacing if
currentWidth += wordSpacing;
}
//workout gap between chars and decide if we should add a space
currentGap = (glyphData.getWidth() + charSpacing - lastWidth);
String spaces="";
if (currentGap > 0 && lastWidth > 0) {
spaces=PdfFont.getSpaces(currentGap, spaceWidth, PdfStreamDecoder.currentThreshold);
}
glyphData.addToWidth(currentWidth); //also increases text count
lastWidth = glyphData.getWidth(); //increase width by current char
//track for user if required
if(customGlyphTracker!=null){
customGlyphTracker.addGlyph(Trm, glyphData.getRawInt(), glyphData.getDisplayValue(), glyphData.getUnicodeValue());
}
//add unicode value to our text data with embedded width
if(parserOptions.isTextExtracted()) {
hasContent = writeOutText(glyphData, Trm, hasContent, currentWidth, textData, spaces);
}
} else if (glyphData.getRawChar() ==40 || glyphData.getRawChar() == 60) { //start of text stream '('=40 '<'=60
glyphData.setText(true); //set text flag - no escape character possible
glyphData.setOpenChar(glyphData.getRawChar());
} else if ((glyphData.getRawChar() == 41) || (glyphData.getRawChar() == 62 && glyphData.getOpenChar()==60)||(!glyphData.isText()&&(glyphData.getRawChar()=='-' ||(glyphData.getRawChar()>='0' && glyphData.getRawChar()<='9')))) {
i = Leading.readLeading(i, stream,glyphData);
}
//textExtracted added by Mark
//generate if we are in Viewer (do not bother if thumbnails)
if(parserOptions.isTextExtracted()) {
resetCoords = setExtractedText(currentWidth, resetCoords);
}
i++;
}
if(returnText){
if(!tjTextValue.isEmpty()) {
tjTextValue += ' ' + buff.toString();
} else {
tjTextValue = buff.toString();
}
}
Trm=updateMatrixPosition(widthIsVertical, Trm, glyphData.getLeading(), currentWidth, currentTextState);
/* now workout the rectangular shape this text occupies
* by creating a box of the correct width/height and transforming it
* (this routine could undoutedly be better coded but it works and I
* don't want to break it!!)
*/
if(parserOptions.isTextExtracted()){
return setExtractedText(lastTextChar, x, textData, hasContent);
}else {
return null;
}
}
static float[][] updateMatrixPosition(boolean widthIsVertical, float[][] Trm, float leading, float currentWidth, TextState currentTextState) {
/*all text is now drawn (if required) and text has been decoded*/
//final move to get end of shape
float[][] temp = new float[3][3];
temp[0][0] = 1;
temp[0][1] = 0;
temp[0][2] = 0;
temp[1][0] = 0;
temp[1][1] = 1;
temp[1][2] = 0;
//if leading moves it back into text, leave off
if(leading<0) {
temp[2][0] = (currentWidth);
} else {
temp[2][0] = (currentWidth + leading); //tx;
}
temp[2][1] = 0; //ty;
if(widthIsVertical){ //switch x and y
float tmp=temp[2][0];
temp[2][0]=temp[2][1];
temp[2][1]=tmp;
}
temp[2][2] = 1;
Trm = Matrix.multiply(temp, Trm); //multiply to get new Tm
//update Tm to cursor
currentTextState.Tm[2][0] = Trm[2][0];
currentTextState.Tm[2][1] = Trm[2][1]-currentTextState.getTextRise();
return Trm;
}
private StringBuffer setExtractedText(final char lastTextChar, final float x, StringBuffer textData, final boolean hasContent) {
/*roll on if last char is not a space - otherwise restore to before spaces*/
if (lastTextChar == ' '){
Trm = TrmBeforeSpace;
}
/*calculate rectangular shape of text*/
calcCoordinates(x, Trm, charSpacing);
/*
* if we have an /ActualText use that instead with the width data at start of original
*/
if(textData!=null && actualText!=null && !actualText.isEmpty()){
int startValue= textData.indexOf(PdfData.marker,2);
if(startValue>0) {
startValue = textData.indexOf(PdfData.marker, startValue + 1);
}
if(startValue>0){
textData.setLength(startValue+1); //keep width data but lose text
textData.append(actualText); //subsitute in /ActualText
}
actualText=null;
}
/*return null for no text*/
if (textData.length() == 0 || !hasContent) //return null if no text
{
textData = null;
}
if (PdfStreamDecoder.showCommands){
if(textData==null) {
System.out.println("no data-------------");
} else{
System.out.println(" data="+x1+ ' ' +y1+ ',' +x2+ ' ' +y2+ ' ' + org.jpedal.grouping.PdfGroupingAlgorithms.removeHiddenMarkers(textData + "<<"));
}
}
return textData;
}
private void renderText(final float currentWidth, final int type, final int Tmode, final float multiplyer, final boolean isTextShifted) throws RuntimeException {
//get glyph if not CID
String charGlyph="notdef";
final int rawInt=glyphData.getRawInt();
try{
if(!currentFontData.isCIDFont()) {
charGlyph = currentFontData.getMappedChar(rawInt, false);
}
PdfGlyph glyph;
/*
* store info needed to create glyph on first render or create now
*/
if(parserOptions.generateGlyphOnRender() && !parserOptions.renderDirectly()){
if(glyphData.isfirstTime()){
glyph=new MarkerGlyph(Trm[0][0], Trm[0][1], Trm[1][0], Trm[1][1], currentFontData.getBaseFontName());
((SwingDisplay)current).checkFontSaved(glyph, currentFontData.getBaseFontName(),currentFontData);
glyphData.setFirstTime(false);
}
currentFontData.setValuesForGlyph(rawInt, charGlyph, glyphData.getDisplayValue(),currentFontData.getEmbeddedChar(rawInt));
glyph=new UnrendererGlyph(Trm[2][0], Trm[2][1],rawInt,currentWidth);
}else{ //render now
glyph= glyphs.getEmbeddedGlyph( factory,charGlyph , Trm, rawInt, glyphData.getDisplayValue(), currentWidth, currentFontData.getEmbeddedChar(rawInt));
if (glyph instanceof TTGlyph){
//check for dodgy arial and try to replace is SAP created PDF file
if(glyph.containsBrokenData()){
if(glyphData.getDisplayValue()!=null && !glyphData.getDisplayValue().startsWith("&#")){
if(current.isHTMLorSVG()) {
current.drawEmbeddedText(Trm, glyphData.getFontSize(), null, null, DynamicVectorRenderer.TEXT, gs, null,glyphData.getDisplayValue(), currentFontData, -100);
} else {
current.drawText(Trm, glyphData.getDisplayValue(), gs, Trm[2][0], -Trm[2][1], currentFontData.getJavaFontX(glyphData.getFontSize()));
}
}
glyph=null;
}else {
ttHintingRequired = ttHintingRequired || ((TTGlyph) glyph).isTTHintingRequired();
}
}
}
//avoid null type 3 glyphs and set color if needed
if(type==StandardFonts.TYPE3){
if(glyph!=null && glyph.getmaxWidth()==0) {
glyph = null;
} else if(glyph!=null && glyph.ignoreColors()){
glyph.setT3Colors(gs.getNonstrokeColor(),gs.getNonstrokeColor(),true);
}
}
if(glyph!=null || isHTML){
//set raw width to use for scaling
if(glyph!=null && type==StandardFonts.TYPE1) {
glyph.setWidth(currentWidth * 1000);
}
float[][] finalTrm={{Trm[0][0], Trm[0][1],0},
{Trm[1][0], Trm[1][1] ,0},
{Trm[2][0], Trm[2][1],1}};
final float[][] finalScale={{(float) currentFontData.FontMatrix[0],(float) currentFontData.FontMatrix[1],0},
{(float)currentFontData.FontMatrix[2],(float)currentFontData.FontMatrix[3],0},
{0,0,1}};
//factor in fontmatrix (which may include italic)
finalTrm=Matrix.multiply(finalTrm, finalScale);
finalTrm[2][0]= Trm[2][0];
finalTrm[2][1]= Trm[2][1];
//manipulate matrix to get right rotation
if(finalTrm[1][0]<0 && finalTrm[0][1]<0){
finalTrm[1][0]=-finalTrm[1][0];
finalTrm[0][1]=-finalTrm[0][1];
}
//create shape for text using tranformation to make correct size
final AffineTransform at=new AffineTransform(finalTrm[0][0],finalTrm[0][1],finalTrm[1][0],finalTrm[1][1] ,finalTrm[2][0],finalTrm[2][1]);
//add to renderer
int fontType=DynamicVectorRenderer.TYPE1C;
if(type==StandardFonts.OPENTYPE){
fontType=DynamicVectorRenderer.TYPE1C;
//and fix for scaling in OTF
final float z=1000f/(glyph.getmaxWidth());
at.scale(currentWidth*z, 1);
}else if(type==StandardFonts.TRUETYPE || type==StandardFonts.CIDTYPE2 || (currentFontData.isFontSubstituted() && type!=StandardFonts.TYPE1)){
fontType=DynamicVectorRenderer.TRUETYPE;
}else if(type==StandardFonts.TYPE3){
fontType=DynamicVectorRenderer.TYPE3;
}
//negative as flag to show we need to decode later
if(parserOptions.generateGlyphOnRender()) {
fontType = -fontType;
}
/*
* add glyph outline to shape in TR7 mode
*/
if((Tmode==GraphicsState.CLIPTEXT)){
//will need FX implementation
if(glyph!=null && !parserOptions.useJavaFX() && glyph.getShape()!=null){
final Area glyphShape=(Area) (glyph.getShape()).clone();
/*
* some truetype fonts are using the 1000x1000 image in
* PDF2Image (viewer works) so this code handles this.
*
* We need to set clip to actual size of glyf so need to factor out
* if TT font larger
* (see 13jun/20130031.pdf or case 14645
*/
if(TTGlyph.useHinting && glyph instanceof TTGlyph){
glyphShape.transform(AffineTransform.getScaleInstance(0.01,0.01));
}
glyphShape.transform(at);
if(glyphShape.getBounds().getWidth()>0 &&
glyphShape.getBounds().getHeight()>0){
gs.addClip(glyphShape);
}
}
}else {
final float lw = gs.getLineWidth();
float lineWidth = 0;
if (multiplyer > 0) {
lineWidth = lw / multiplyer;
}
final double[] textTrans = new double[6];
at.getMatrix(textTrans);
gs.setLineWidth((float)(lineWidth/textTrans[0]));
if (isTextShifted) {
current.drawEmbeddedText(Trm, -glyphData.getFontSize(), glyph, null, fontType, gs, textTrans, glyphData.getUnicodeValue(), currentFontData, -100);
} else {
current.drawEmbeddedText(Trm, glyphData.getFontSize(), glyph, null, fontType, gs, textTrans, glyphData.getUnicodeValue(), currentFontData, -100);
}
gs.setLineWidth(lw);
}
}else{ //if no valid glyph data, treat as a space
glyphData.set(" ");
}
} catch (final Exception e) {
LogWriter.writeLog("Exception: " + e.getMessage());
errorTracker.addPageFailureMessage("Exception " + e + " on embedded font renderer");
}
}
static char getValue(char lastTextChar, GlyphData glyphData, PdfFont currentFontData, DynamicVectorRenderer current) {
final String newValue=currentFontData.getGlyphValue(glyphData.getRawInt());
glyphData.setDisplayValue(newValue);
final int rawInt=glyphData.getRawInt();
//if space is actually mapped onto something else we need to reset
//this variable which tracks space chars (as false match)
if(rawInt==32 && !glyphData.getDisplayValue().equals(" ")){
lastTextChar='Z';
//rawChar='Z';
}
glyphData.setUnicodeValue(currentFontData.getUnicodeValue(glyphData.getDisplayValue(),rawInt));
//fix for character wrong in some T1 fonts
if(currentFontData.getFontType()==StandardFonts.TYPE1 && current.isHTMLorSVG()){
final String possAltValue = currentFontData.getMappedChar(rawInt,true);
if(possAltValue!=null && possAltValue.length()==1 && possAltValue.equalsIgnoreCase(glyphData.getUnicodeValue().toLowerCase())){
glyphData.set(possAltValue);
}
}
return lastTextChar;
}
static int calcFontSize(GlyphData glyphData, TextState currentTextState, float[][] Trm) throws RuntimeException {
int fontSize;
/*workout if horizontal or vertical plot and set values*/
if (Trm[1][1] != 0) {
glyphData.setHorizontal(true);
currentTextState.writingMode = PdfData.HORIZONTAL_LEFT_TO_RIGHT;
if(Trm[1][1]<0) {
fontSize = (int) (Trm[1][1] - 0.5f);
} else {
fontSize = (int) (Trm[1][1] + 0.5f);
}
if(fontSize==0){
if(Trm[0][1]<0) {
fontSize = (int) (Trm[0][1] - 0.5f);
} else {
fontSize = (int) (Trm[0][1] + 0.5f);
}
}
glyphData.setFontScale(Trm[0][0]);
//allow for this odd case in 20090818_Mortgage Key Issue Packag .pdf
if(Trm[0][0]==0 && Trm[0][1]>0 && Trm[1][0]<0 && Trm[1][1]>0) {
currentTextState.writingMode = PdfData.VERTICAL_BOTTOM_TO_TOP;
}
} else {
glyphData.setHorizontal(false);
if(Trm[1][0]<0) {
fontSize = (int) (Trm[1][0] - 0.5f);
} else {
fontSize = (int) (Trm[1][0] + 0.5f);
}
if(fontSize==0){
if(Trm[0][0]<0) {
fontSize = (int) (Trm[0][0] - 0.5f);
} else {
fontSize = (int) (Trm[0][0] + 0.5f);
}
}
if(fontSize<0){
fontSize=-fontSize;
currentTextState.writingMode = PdfData.VERTICAL_BOTTOM_TO_TOP;
}else {
currentTextState.writingMode = PdfData.VERTICAL_TOP_TO_BOTTOM;
}
glyphData.setFontScale(Trm[0][1]);
}
if(fontSize==0) {
fontSize = 1;
}
glyphData.setFontSize(fontSize);
return fontSize;
}
/**
* add text chars to our text object for extraction
* @param hasContent
* @param currentWidth
* @param textData
* @param spaces
* @return
*/
static boolean writeOutText(GlyphData glyphData, float[][] Trm,boolean hasContent, final float currentWidth, final StringBuffer textData, final String spaces) {
final String unicodeValue=glyphData.getUnicodeValue();
final float fontScale=glyphData.getFontScale();
if(!unicodeValue.isEmpty()) {
//add character to text we have decoded with width
//if large space separate out
if (DecoderOptions.embedWidthData) {
final float xx=Trm[2][0];
final float yy=Trm[2][1];
textData.append(spaces);
//embed width information in data
if(glyphData.isHorizontal()){
textData.append(PdfData.marker);
textData.append(xx);
textData.append(PdfData.marker);
}else{
textData.append(PdfData.marker);
textData.append(yy);
textData.append(PdfData.marker);
}
textData.append(currentWidth * fontScale);
textData.append(PdfData.marker);
}else {
textData.append(spaces);
}
/*add data to output*/
//turn chars less than 32 into escape
final int length=unicodeValue.length();
char next;
boolean isXMLExtraction=glyphData.isXMLExtraction();
for (int ii = 0; ii < length; ii++) {
next = unicodeValue.charAt(ii);
hasContent=true;
//map tab to space
if(next==9) {
next = 32;
}
if(next=='<' && isXMLExtraction) {
textData.append("<");
} else if(next=='>' && isXMLExtraction) {
textData.append(">");
} else if(next==64258) {
textData.append("fl");
} else if (next > 31) {
textData.append(next);
} else if(next==13 || next==10){
textData.append(' ');
} else{
textData.append(hex[next]);
}
}
}else {
textData.append(spaces);
}
return hasContent;
}
public boolean setExtractedText(final float currentWidth,boolean resetCoords) {
final String displayValue=glyphData.getDisplayValue();
if(!displayValue.isEmpty() && !displayValue.equals(" ")){
float xx=((int)Trm[2][0]);
float yy=((int)Trm[2][1]);
float ww=(currentWidth * glyphData.getFontScale());
float hh=(Trm[1][1]);
if(hh==0) {
hh = (Trm[0][1]);
}
//correct silly figures used in T3 font on some scanned pages
if(currentFontData.getFontType()==StandardFonts.TYPE3 && hh!=0 && ((int)hh)==0 && currentFontData.FontMatrix[3]==-1){
hh *= (currentFontData.FontBBox[3] - currentFontData.FontBBox[1]);
hh=-hh;
}
hh=(int)hh;
if(ww<0){
ww=-ww;
xx -= ww;
}
if(hh<0){
hh=-hh;
yy -= hh;
}
final Rectangle fontbb = currentFontData.getBoundingBox();
//this fixes odd font
if(fontbb.y<0){
fontbb.height -= fontbb.y;
fontbb.y=0;
}
float fy = fontbb.y;
if(fy==0) //If no y set it may be embedded so we should guess a value
{
fy = 100;
}
if(fy<0) {
fy = -fy;
}
float h = 1000+(fy);
//Percentage of fontspace used compared to default
h = 1000/h;
final float fontHeight;
switch(currentTextState.writingMode){
case PdfData.HORIZONTAL_LEFT_TO_RIGHT :
fontHeight = (hh/h);
yy -= (fontHeight - hh);
hh = fontHeight;
break;
case PdfData.HORIZONTAL_RIGHT_TO_LEFT :
System.out.println("THIS TEXT DIRECTION HAS NOT BEEN IMPLEMENTED YET (Right to Left)");
break;
case PdfData.VERTICAL_TOP_TO_BOTTOM :
fontHeight = (ww/h);
xx -= (fontHeight - ww);
ww = fontHeight;
break;
case PdfData.VERTICAL_BOTTOM_TO_TOP :
fontHeight = (ww/h);
xx -= fontHeight;
ww = fontHeight;
break;
}
//Highlight area around text so increase x coord
xx -= 1;
ww += 2;
/*
* Calculate the y coords for text here
* x coords are calculated in the method
* calcCoordinates(float x, float[][] rawTrm, boolean horizontal, float max_height, int fontSize, float y)
*/
if(resetCoords){
y2 = yy;
y1 = yy+hh;
resetCoords = false;
}
if(yyy1) {
y1 = (yy + hh);
}
if(textAreas!=null && parserOptions.isRenderText() ){
textAreas.addElement(new int[]{(int)xx ,(int)yy ,(int)ww ,(int)hh});
textDirections.addElement(currentTextState.writingMode);
}
}
return resetCoords;
}
public boolean isTTHintingRequired() {
return ttHintingRequired;
}
public void setReturnText(final boolean returnText) {
this.returnText=returnText;
}
public void setActualText(String actualText) {
this.actualText=actualText;
}
}