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/*
* ===========================================
* 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
*
* ---------------
* GenericFontMapper.java
* ---------------
*/
package org.jpedal.render.output;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.jpedal.fonts.StandardFonts;
/**
* control translation of fonts for display
*/
public class GenericFontMapper implements org.jpedal.render.output.FontMapper {
private static final String DEFAULT_FONT = "DEFAULT_FONT";
//weight
String style="normal";
String weight="normal";
String family;
private String fontID;
private int fontMode=DEFAULT_ON_UNMAPPED;
private boolean isFontEmbedded;
private boolean isFontSubstituted;
//list of font mappings to substitute fonts
public static final Map fontMappings = new HashMap();
public static final Map fontSizeAdjustments = new HashMap();
//original name in PDF
private String rawFont;
//
//setup font substitutions once
static{
//Mappings reference: http://www.ampsoft.net/webdesign-l/WindowsMacFonts.html
final String arialType = "Arial, Helvetica, sans-serif";
final String arialBlackType = "'Arial Black', Gadget, sans-serif";
final String comicSansType = "'Comic Sans MS', Textile, cursive";
final String courierNewType = "'Courier New', Courier, monospace";
final String georgiaType = "Georgia, 'Times New Roman', Times, serif";
final String impactType = "Impact, Charcoal, sans-serif";
final String lucidaConsoleType = "'Lucida Console', Monaco, monospace";
final String lucidaSansType = "'Lucida Sans Unicode', 'Lucida Grande', sans-serif";
final String palatinoType = "'Palatino Linotype', 'Book Antiqua', Palatino, serif";
final String tahomaType = "Tahoma, Geneva, sans-serif";
final String romanType = "'Times New Roman', Times, serif";
final String trebuchetType = "'Trebuchet MS', Helvetica, sans-serif";
final String verdanaType = "Verdana, Geneva, sans-serif";
final String symbolType = "Symbol";
final String webdingsType = "Webdings";
final String wingdingsType = "Wingdings, 'Zapf Dingbats'";
final String msSansSerifType = "'MS Sans Serif', Geneva, sans-serif";
final String msSerifType = "'MS Serif', 'New York', serif";
final String helveticaType = "Helvetica, Arial, sans-serif";
if(fontMappings.keySet().isEmpty()){
//Default fonts
fontMappings.put("Arial", arialType);
fontMappings.put("ArialMT", arialType);
fontMappings.put("ArialBlack", arialBlackType);
fontMappings.put("ComicSansMS", comicSansType);
fontMappings.put("CourierNew", courierNewType);
fontMappings.put("Georgia", georgiaType);
fontMappings.put("Impact", impactType);
fontMappings.put("LucidaConsole", lucidaConsoleType);
fontMappings.put("LucidaSansUnicode", lucidaSansType);
fontMappings.put("PalatinoLinotype", palatinoType);
fontMappings.put("Tahoma", tahomaType);
fontMappings.put("TimesNewRoman", romanType);
fontMappings.put("Times", romanType);
fontMappings.put("Trebuchet", trebuchetType);
fontMappings.put("Verdana", verdanaType);
fontMappings.put("Symbol", symbolType);
fontMappings.put("Webdings", webdingsType);
fontMappings.put("Wingdings", wingdingsType);
fontMappings.put("MSSansSerif", msSansSerifType);
fontMappings.put("MSSerif", msSerifType);
fontMappings.put("Helvetica", helveticaType);
fontMappings.put("ZapfDingbats", wingdingsType);
fontMappings.put(DEFAULT_FONT, romanType);
fontSizeAdjustments.put(DEFAULT_FONT, -1); //Err on the side of caution for default fonts.
}
}
public GenericFontMapper(final String rawFont)
{
init(rawFont);
this.rawFont=rawFont;
}
public GenericFontMapper(final String rawFont, final int fontMode, final boolean isFontEmbedded, final boolean isFontSubstituted) {
this.fontMode = fontMode;
this.isFontEmbedded = isFontEmbedded;
this.isFontSubstituted = isFontSubstituted;
this.rawFont = rawFont;
init(rawFont);
}
private void init(final String rawFont)
{
if(fontMode==EMBED_ALL || fontMode==EMBED_ALL_EXCEPT_BASE_FAMILIES){ //Arial-Bold or Arial,bold need splitting into family and weight
fontID=rawFont;
//limit to nonn-emebedded of Standard (ie TNR, Arial)
if(!isFontEmbedded || StandardFonts.isStandardFont(rawFont,true)){
int ptr=rawFont.indexOf(',');
if(ptr==-1){
ptr=rawFont.indexOf('-');
}
if(ptr==-1) {
//Split at the last number
for(int i = (rawFont.length() - 1); i >= 0; i--) {
final int pt = rawFont.codePointAt(i);
if(pt >= 0x30 && pt <= 0x39) {
if(i < (rawFont.length() - 1)) {
ptr = i - 1;
}
break;
}
}
}
if(ptr>0){
findAttributes(rawFont);
}
}
//Font exists as it is in mappings
}else if(!mapFont(rawFont)) {
final String fontLessAttributes = findAttributes(rawFont);
//Does the font name minus attributes exist in mappings?
if(!mapFont(fontLessAttributes)) {
//If there isnt a similiar one use the default.
if(!hasSimiliarMapping(fontLessAttributes)) {
switch(this.fontMode) {
case DEFAULT_ON_UNMAPPED:
fontID = DEFAULT_FONT;
break;
case FontMapper.FAIL_ON_UNMAPPED:
throw new RuntimeException("Font " + rawFont + " not mapped");
}
}
}
}
}
/**
* Strip out and set font attributes returning the font name
* @param rawFont
* @return String contains the name of the font
*/
private String findAttributes(final String rawFont)
{
String result = rawFont;
int ptr = rawFont.indexOf(',');
if(ptr==-1) {
ptr = rawFont.indexOf('-');
}
if(ptr==-1) {
ptr = rawFont.lastIndexOf(' ');
}
if(ptr==-1) {
//Split at the last number
for(int i = (rawFont.length() - 1); i >= 0; i--) {
final int pt = rawFont.codePointAt(i);
if(pt >= 0x30 && pt <= 0x39) {
if(i < (rawFont.length() - 1)) {
ptr = i - 1;
}
break;
}
}
}
if(ptr != -1) {
final String fontAttributes = rawFont.substring(ptr+1, rawFont.length()).toLowerCase();
result = rawFont.substring(0, ptr);
family=result; //font less any -, or number
boolean isFontExists=false;
for(final String k : fontMappings.keySet()){
if(k.startsWith(family)){
isFontExists = true;
}
}
if(isFontExists || !isFontEmbedded){
if(fontAttributes.contains("heavy")) {
weight = "900";
}
else if(fontAttributes.endsWith("black")) {
weight = "bolder";
}
else if(fontAttributes.contains("light")) {
weight = "lighter";
}
else if(fontAttributes.contains("condensed")) {
weight = "100";
}
else if(fontAttributes.contains("bold")) {
weight = "bold";
}
/*
* and style
*/
if(fontAttributes.equals("it") || fontAttributes.contains("italic") || fontAttributes.contains("kursiv") || fontAttributes.contains("oblique")) {
style = "italic";
}
}
}
return result;
}
/**
* See if font is in mappings and set the font ID. Return false if its not.
* @param s String to check
* @return true if it maps
*/
private boolean mapFont(final String s)
{
if(fontMappings.get(s) != null) {
fontID = s;
return true;
}
return false;
}
/**
* Search mappings for a one that sounds close.
* @param fontName
* @return
*/
private boolean hasSimiliarMapping(final String fontName)
{
final Set keySet = fontMappings.keySet();
final Set candidates = new HashSet();
for(final String key : keySet) {
final String lcKey = key.toLowerCase();
final String lcFont = fontName.toLowerCase();
if(lcKey.equals(lcFont)) {
fontID = key;
return true;
}
if(lcKey.contains(lcFont) || lcFont.contains(lcKey)) {
candidates.add(key);
}
}
if(!candidates.isEmpty()) {
String result[] = new String[candidates.size()];
result = candidates.toArray(result);
fontID = result[0];
//@TODO Just get the shortest one for the time being.
if(candidates.size()>1) {
for(int i = 1; i < result.length; i++) {
if(result[i].length() < fontID.length()) {
fontID = result[i];
}
}
}
return true;
}
return false;
}
@Override
public String getFont() {
String result = fontMappings.get(fontID);
if(result == null && family != null && !isFontEmbedded){
result = fontMappings.get(family);
}
if (result == null && (fontMode==EMBED_ALL || fontMode==EMBED_ALL_EXCEPT_BASE_FAMILIES)){ //just pass through
rawFont = rawFont.replaceAll("[.,@*#]", "-");
result = rawFont;
} else if (result != null && isFontEmbedded && fontMode == EMBED_ALL){//if embedded font called WingDings we want to pass pack font name not generic mappings
//for general discussion should make it live for all values
// System.out.println(fontID+" "+result);
result = fontID;
}
return (result == null) ? "" : result;
}
@Override
public String getStyle() {
if (isFontEmbedded) {
style = "normal";
}
return style;
}
@Override
public String getWeight() {
if (isFontEmbedded) {
weight = "normal";
}
return weight;
}
@Override
public boolean isFontEmbedded() {
return isFontEmbedded;
}
@Override
public boolean isFontSubstituted() {
return isFontSubstituted;
}
@Override
public boolean equals(FontMapper fontMapper) {
return this.getStyle().equals(fontMapper.getStyle()) &&
this.getFont().equals(fontMapper.getFont()) &&
this.getWeight().equals(fontMapper.getWeight()) &&
isFontEmbedded == fontMapper.isFontEmbedded();
}
}
