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#64867 - Provide PDF rendering with PPTX2PNG 

render text as text, i.e. not as shapes

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1883212 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Andreas Beeker 2020-11-08 21:30:54 +00:00
parent 578b71b127
commit 1d3ef4d81b
13 changed files with 933 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

92
src/java/org/apache/poi/sl/draw/DrawTextParagraph.java
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@ -32,8 +32,10 @@ import java.text.AttributedCharacterIterator.Attribute;
import java.text.AttributedString;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import org.apache.poi.common.usermodel.fonts.FontGroup;
import org.apache.poi.common.usermodel.fonts.FontGroup.FontGroupRange;
@ -257,9 +259,18 @@ public class DrawTextParagraph implements Drawable {
DrawFactory fact = DrawFactory.getInstance(graphics);
StringBuilder text = new StringBuilder();
AttributedString at = getAttributedString(graphics, text);
AttributedCharacterIterator it = at.getIterator();
List<AttributedStringData> attList = getAttributedString(graphics, text);
AttributedString as = new AttributedString(text.toString());
AttributedString asNoCR = new AttributedString(text.toString().replaceAll("[\\r\\n]", " "));
for (AttributedStringData asd : attList) {
as.addAttribute(asd.attribute, asd.value, asd.beginIndex, asd.endIndex);
asNoCR.addAttribute(asd.attribute, asd.value, asd.beginIndex, asd.endIndex);
}
AttributedCharacterIterator it = as.getIterator();
AttributedCharacterIterator itNoCR = asNoCR.getIterator();
LineBreakMeasurer measurer = new LineBreakMeasurer(it, graphics.getFontRenderContext());
for (;;) {
int startIndex = measurer.getPosition();
@ -308,7 +319,7 @@ public class DrawTextParagraph implements Drawable {
}
}
AttributedString str = new AttributedString(it, startIndex, endIndex);
AttributedString str = new AttributedString(itNoCR, startIndex, endIndex);
DrawTextFragment line = fact.getTextFragment(layout, str);
lines.add(line);
@ -369,10 +380,14 @@ public class DrawTextParagraph implements Drawable {
// TODO: check font group defaulting to Symbol
buFont = dfm.getMappedFont(graphics, buFont);
Map<TextAttribute,Object> att = new HashMap<>();
att.put(TextAttribute.FOREGROUND, fgPaint);
att.put(TextAttribute.FAMILY, buFont.getTypeface());
att.put(TextAttribute.SIZE, fontSize);
att.put(TextAttribute.FONT, new Font(att));
AttributedString str = new AttributedString(dfm.mapFontCharset(graphics,buFont,buCharacter));
str.addAttribute(TextAttribute.FOREGROUND, fgPaint);
str.addAttribute(TextAttribute.FAMILY, buFont.getTypeface());
str.addAttribute(TextAttribute.SIZE, fontSize);
att.forEach(str::addAttribute);
TextLayout layout = new TextLayout(str.getIterator(), graphics.getFontRenderContext());
DrawFactory fact = DrawFactory.getInstance(graphics);
@ -559,8 +574,7 @@ public class DrawTextParagraph implements Drawable {
};
}
protected AttributedString getAttributedString(Graphics2D graphics, StringBuilder text){
List<AttributedStringData> attList = new ArrayList<>();
protected List<AttributedStringData> getAttributedString(Graphics2D graphics, StringBuilder text) {
if (text == null) {
text = new StringBuilder();
}
@ -569,6 +583,9 @@ public class DrawTextParagraph implements Drawable {
DrawFontManager dfm = DrawFactory.getInstance(graphics).getFontManager(graphics);
assert(dfm != null);
final Map<Attribute,Object> att = new HashMap<>();
final List<AttributedStringData> attList = new ArrayList<>();
for (TextRun run : paragraph){
String runText = getRenderableText(graphics, run);
// skip empty runs
@ -576,66 +593,79 @@ public class DrawTextParagraph implements Drawable {
continue;
}
// user can pass an custom object to convert fonts
att.clear();
runText = dfm.mapFontCharset(graphics, run.getFontInfo(null), runText);
int beginIndex = text.length();
// user can pass an custom object to convert fonts
FontInfo fontInfo = run.getFontInfo(null);
runText = dfm.mapFontCharset(graphics, fontInfo, runText);
final int beginIndex = text.length();
text.append(runText);
int endIndex = text.length();
final int endIndex = text.length();
PaintStyle fgPaintStyle = run.getFontColor();
Paint fgPaint = dp.getPaint(graphics, fgPaintStyle);
attList.add(new AttributedStringData(TextAttribute.FOREGROUND, fgPaint, beginIndex, endIndex));
att.put(TextAttribute.FOREGROUND, fgPaint);
Double fontSz = run.getFontSize();
if (fontSz == null) {
fontSz = paragraph.getDefaultFontSize();
}
attList.add(new AttributedStringData(TextAttribute.SIZE, fontSz.floatValue(), beginIndex, endIndex));
att.put(TextAttribute.SIZE, fontSz.floatValue());
if(run.isBold()) {
attList.add(new AttributedStringData(TextAttribute.WEIGHT, TextAttribute.WEIGHT_BOLD, beginIndex, endIndex));
att.put(TextAttribute.WEIGHT, TextAttribute.WEIGHT_BOLD);
}
if(run.isItalic()) {
attList.add(new AttributedStringData(TextAttribute.POSTURE, TextAttribute.POSTURE_OBLIQUE, beginIndex, endIndex));
att.put(TextAttribute.POSTURE, TextAttribute.POSTURE_OBLIQUE);
}
if(run.isUnderlined()) {
attList.add(new AttributedStringData(TextAttribute.UNDERLINE, TextAttribute.UNDERLINE_ON, beginIndex, endIndex));
attList.add(new AttributedStringData(TextAttribute.INPUT_METHOD_UNDERLINE, TextAttribute.UNDERLINE_LOW_TWO_PIXEL, beginIndex, endIndex));
att.put(TextAttribute.UNDERLINE, TextAttribute.UNDERLINE_ON);
att.put(TextAttribute.INPUT_METHOD_UNDERLINE, TextAttribute.UNDERLINE_LOW_TWO_PIXEL);
}
if(run.isStrikethrough()) {
attList.add(new AttributedStringData(TextAttribute.STRIKETHROUGH, TextAttribute.STRIKETHROUGH_ON, beginIndex, endIndex));
att.put(TextAttribute.STRIKETHROUGH, TextAttribute.STRIKETHROUGH_ON);
}
if(run.isSubscript()) {
attList.add(new AttributedStringData(TextAttribute.SUPERSCRIPT, TextAttribute.SUPERSCRIPT_SUB, beginIndex, endIndex));
att.put(TextAttribute.SUPERSCRIPT, TextAttribute.SUPERSCRIPT_SUB);
}
if(run.isSuperscript()) {
attList.add(new AttributedStringData(TextAttribute.SUPERSCRIPT, TextAttribute.SUPERSCRIPT_SUPER, beginIndex, endIndex));
att.put(TextAttribute.SUPERSCRIPT, TextAttribute.SUPERSCRIPT_SUPER);
}
Hyperlink<?,?> hl = run.getHyperlink();
if (hl != null) {
attList.add(new AttributedStringData(HYPERLINK_HREF, hl.getAddress(), beginIndex, endIndex));
attList.add(new AttributedStringData(HYPERLINK_LABEL, hl.getLabel(), beginIndex, endIndex));
att.put(HYPERLINK_HREF, hl.getAddress());
att.put(HYPERLINK_LABEL, hl.getLabel());
}
if (fontInfo != null) {
att.put(TextAttribute.FAMILY, fontInfo.getTypeface());
} else {
att.put(TextAttribute.FAMILY, paragraph.getDefaultFontFamily());
}
att.put(TextAttribute.FONT, new Font(att));
att.forEach((k,v) -> attList.add(new AttributedStringData(k,v,beginIndex,endIndex)));
processGlyphs(graphics, dfm, attList, beginIndex, run, runText);
}
// ensure that the paragraph contains at least one character
// We need this trick to correctly measure text
if (text.length() == 0) {
Double fontSz = paragraph.getDefaultFontSize();
text.append(" ");
attList.add(new AttributedStringData(TextAttribute.SIZE, fontSz.floatValue(), 0, 1));
Double fontSz = paragraph.getDefaultFontSize();
att.put(TextAttribute.SIZE, fontSz.floatValue());
att.put(TextAttribute.FAMILY, paragraph.getDefaultFontFamily());
att.put(TextAttribute.FONT, new Font(att));
att.forEach((k,v) -> attList.add(new AttributedStringData(k,v,0,1)));
}
AttributedString string = new AttributedString(text.toString());
for (AttributedStringData asd : attList) {
string.addAttribute(asd.attribute, asd.value, asd.beginIndex, asd.endIndex);
}
return string;
return attList;
}
/**

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src/multimodule/ooxml/java9/module-info.class
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7
src/multimodule/ooxml/java9/module-info.java
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@ -87,4 +87,11 @@ module org.apache.poi.ooxml {
requires static org.apache.santuario.xmlsec;
requires static org.bouncycastle.provider;
requires static org.bouncycastle.pkix;
/* optional dependencies for slideshow rendering via PPTX2PNG */
requires static batik.all;
requires static org.apache.pdfbox;
requires static org.apache.fontbox;
requires static de.rototor.pdfbox.graphics2d;
requires static xmlgraphics.commons;
}

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src/multimodule/ooxml/test9/module-info.class
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8
src/multimodule/ooxml/test9/module-info.java
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@ -89,6 +89,14 @@ module org.apache.poi.ooxml {
requires org.bouncycastle.pkix;
/* optional dependencies for slideshow rendering via PPTX2PNG */
requires batik.all;
requires org.apache.pdfbox;
requires org.apache.fontbox;
requires de.rototor.pdfbox.graphics2d;
requires xmlgraphics.commons;
// test specific exports
requires junit;
requires com.google.common;

102
src/ooxml/java/org/apache/poi/xslf/util/PDFFontMapper.java Normal file
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@ -0,0 +1,102 @@
package org.apache.poi.xslf.util;
import java.awt.Font;
import java.awt.FontFormatException;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.regex.Pattern;
import java.util.stream.Stream;
import org.apache.pdfbox.pdmodel.font.PDFont;
public class PDFFontMapper extends PDFFontMapper2 /* PdfBoxGraphics2DFontTextDrawer */ {
private static final String DEFAULT_TTF_PATTERN = ".*\\.tt[fc]";
private static final String FONTDIRS_MAC =
"$HOME/Library/Fonts;" +
"/Library/Fonts;" +
"/Network/Library/Fonts;" +
"/System/Library/Fonts;" +
"/System Folder/Fonts";
private static final String FONTDIRS_WIN =
"C:\\Windows\\Fonts";
private static final String FONTDIRS_UNX =
"/usr/share/fonts;" +
"/usr/local/share/fonts;" +
"$HOME/.fonts";
private final Map<String,File> fonts = new HashMap<>();
private final Set<String> registered = new HashSet<>();
public PDFFontMapper(String fontDir, String fontTtf) {
registerFonts(fontDir, fontTtf);
}
private void registerFonts(String fontDir, String fontTtf) {
if (fontDir == null) {
String OS = System.getProperty("os.name", "generic").toLowerCase(Locale.ROOT);
if (OS.contains("mac") || OS.contains("darwin")) {
fontDir = FONTDIRS_MAC;
} else if (OS.contains("win")) {
fontDir = FONTDIRS_WIN;
} else {
fontDir = FONTDIRS_UNX;
}
}
String fd = fontDir.replace("$HOME", System.getProperty("user.home"));
final LinkedList<File> dirs = new LinkedList<>();
Stream.of(fd.split(";")).map(File::new).filter(File::isDirectory).forEach(dirs::add);
Pattern p = Pattern.compile(fontTtf == null ? DEFAULT_TTF_PATTERN : fontTtf);
while (!dirs.isEmpty()) {
File[] ttfs = dirs.removeFirst().listFiles((f, n) -> {
File f2 = new File(f, n);
if (f2.isDirectory()) {
dirs.add(f2);
return false;
} else {
return p.matcher(n).matches();
}
});
if (ttfs == null) {
continue;
}
for (File f : ttfs) {
try {
Font font = Font.createFont(Font.TRUETYPE_FONT, f);
fonts.put(font.getFontName(Locale.ROOT), f);
} catch (IOException|FontFormatException ignored) {
}
}
}
}
@Override
protected PDFont mapFont(Font font, IFontTextDrawerEnv env) throws IOException, FontFormatException {
String name = font.getFontName(Locale.ROOT);
if (!registered.contains(name)) {
registered.add(name);
File f = fonts.get(name);
if (f != null) {
super.registerFont(name, f);
}
}
return super.mapFont(font, env);
}
}

681
src/ooxml/java/org/apache/poi/xslf/util/PDFFontMapper2.java Normal file
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@ -0,0 +1,681 @@
package org.apache.poi.xslf.util;
import java.awt.Font;
import java.awt.FontFormatException;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Paint;
import java.awt.font.FontRenderContext;
import java.awt.font.LineMetrics;
import java.awt.font.TextAttribute;
import java.awt.geom.Rectangle2D;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.text.AttributedCharacterIterator;
import java.text.CharacterIterator;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import de.rototor.pdfbox.graphics2d.PdfBoxGraphics2DFontTextDrawer;
import de.rototor.pdfbox.graphics2d.PdfBoxGraphics2DFontTextDrawerDefaultFonts;
import org.apache.fontbox.ttf.TrueTypeCollection;
import org.apache.fontbox.ttf.TrueTypeFont;
import org.apache.pdfbox.io.IOUtils;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.font.PDFont;
import org.apache.pdfbox.pdmodel.font.PDType0Font;
import org.apache.pdfbox.pdmodel.font.PDType1Font;
import org.apache.pdfbox.util.Matrix;
import org.apache.poi.util.Internal;
/**
* Workaround class until PdfBoxGraphics2DFontTextDrawer is fixed
*/
@Internal
public class PDFFontMapper2 extends PdfBoxGraphics2DFontTextDrawer
{
/**
* Close / delete all resources associated with this drawer. This mainly means
* deleting all temporary files. You can not use this object after a call to
* close.
* <p>
* Calling close multiple times does nothing.
*/
@SuppressWarnings("ResultOfMethodCallIgnored")
@Override
public void close()
{
for (File tempFile : tempFiles)
tempFile.delete();
tempFiles.clear();
fontFiles.clear();
fontMap.clear();
}
private static class FontEntry
{
String overrideName;
File file;
}
private final List<FontEntry> fontFiles = new ArrayList<FontEntry>();
private final List<File> tempFiles = new ArrayList<File>();
private final Map<String, PDFont> fontMap = new HashMap<String, PDFont>();
/**
* Register a font. If possible, try to use a font file, i.e.
* {@link #registerFont(String, File)}. This method will lead to the creation of
* a temporary file which stores the font data.
*
* @param fontName the name of the font to use. If null, the name is taken from the
* font.
* @param fontStream the input stream of the font. This file must be a ttf/otf file!
* You have to close the stream outside, this method will not close
* the stream.
* @throws IOException when something goes wrong with reading the font or writing the
* font to the content stream of the PDF:
*/
@SuppressWarnings("WeakerAccess")
public void registerFont(String fontName, InputStream fontStream) throws IOException
{
File fontFile = File.createTempFile("pdfboxgfx2dfont", ".ttf");
FileOutputStream out = new FileOutputStream(fontFile);
try
{
IOUtils.copy(fontStream, out);
}
finally
{
out.close();
}
fontFile.deleteOnExit();
tempFiles.add(fontFile);
registerFont(fontName, fontFile);
}
/**
* Register a font.
*
* @param fontName the name of the font to use. If null, the name is taken from the
* font.
* @param fontFile the font file. This file must exist for the live time of this
* object, as the font data will be read lazy on demand
*/
@SuppressWarnings("WeakerAccess")
public void registerFont(String fontName, File fontFile)
{
if (!fontFile.exists())
throw new IllegalArgumentException("Font " + fontFile + " does not exist!");
FontEntry entry = new FontEntry();
entry.overrideName = fontName;
entry.file = fontFile;
fontFiles.add(entry);
}
/**
* Override for registerFont(null,fontFile)
*
* @param fontFile the font file
*/
@SuppressWarnings("WeakerAccess")
public void registerFont(File fontFile)
{
registerFont(null, fontFile);
}
/**
* Override for registerFont(null,fontStream)
*
* @param fontStream the font file
* @throws IOException when something goes wrong with reading the font or writing the
* font to the content stream of the PDF:
*/
@SuppressWarnings("WeakerAccess")
public void registerFont(InputStream fontStream) throws IOException
{
registerFont(null, fontStream);
}
/**
* Register a font which is already associated with the PDDocument
*
* @param name the name of the font as returned by
* {@link java.awt.Font#getFontName()}. This name is used for the
* mapping the java.awt.Font to this PDFont.
* @param font the PDFont to use. This font must be loaded in the current
* document.
*/
@SuppressWarnings("WeakerAccess")
public void registerFont(String name, PDFont font)
{
fontMap.put(name, font);
}
/**
* @return true if the font mapping is populated on demand. This is usually only
* the case if this class has been derived. The default implementation
* just checks for this.
*/
@SuppressWarnings("WeakerAccess")
protected boolean hasDynamicFontMapping()
{
return true;
}
@Override
public boolean canDrawText(AttributedCharacterIterator iterator, IFontTextDrawerEnv env)
throws IOException, FontFormatException
{
/*
* When no font is registered we can not display the text using a font...
*/
if (fontMap.size() == 0 && fontFiles.size() == 0 && !hasDynamicFontMapping())
return false;
boolean run = true;
StringBuilder sb = new StringBuilder();
while (run)
{
Font attributeFont = (Font) iterator.getAttribute(TextAttribute.FONT);
if (attributeFont == null)
attributeFont = env.getFont();
if (mapFont(attributeFont, env) == null)
return false;
/*
* We can not do a Background on the text currently.
*/
if (iterator.getAttribute(TextAttribute.BACKGROUND) != null)
return false;
boolean isStrikeThrough = TextAttribute.STRIKETHROUGH_ON
.equals(iterator.getAttribute(TextAttribute.STRIKETHROUGH));
boolean isUnderline = TextAttribute.UNDERLINE_ON
.equals(iterator.getAttribute(TextAttribute.UNDERLINE));
boolean isLigatures = TextAttribute.LIGATURES_ON
.equals(iterator.getAttribute(TextAttribute.LIGATURES));
if (isStrikeThrough || isUnderline || isLigatures)
return false;
run = iterateRun(iterator, sb);
String s = sb.toString();
int l = s.length();
for (int i = 0; i < l; )
{
int codePoint = s.codePointAt(i);
switch (Character.getDirectionality(codePoint))
{
/*
* We can handle normal LTR.
*/
case Character.DIRECTIONALITY_LEFT_TO_RIGHT:
case Character.DIRECTIONALITY_EUROPEAN_NUMBER:
case Character.DIRECTIONALITY_EUROPEAN_NUMBER_SEPARATOR:
case Character.DIRECTIONALITY_EUROPEAN_NUMBER_TERMINATOR:
case Character.DIRECTIONALITY_WHITESPACE:
case Character.DIRECTIONALITY_COMMON_NUMBER_SEPARATOR:
case Character.DIRECTIONALITY_NONSPACING_MARK:
case Character.DIRECTIONALITY_BOUNDARY_NEUTRAL:
case Character.DIRECTIONALITY_PARAGRAPH_SEPARATOR:
case Character.DIRECTIONALITY_SEGMENT_SEPARATOR:
case Character.DIRECTIONALITY_OTHER_NEUTRALS:
case Character.DIRECTIONALITY_ARABIC_NUMBER:
break;
case Character.DIRECTIONALITY_RIGHT_TO_LEFT:
case Character.DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC:
case Character.DIRECTIONALITY_RIGHT_TO_LEFT_EMBEDDING:
case Character.DIRECTIONALITY_RIGHT_TO_LEFT_OVERRIDE:
case Character.DIRECTIONALITY_POP_DIRECTIONAL_FORMAT:
/*
* We can not handle this
*/
return false;
default:
/*
* Default: We can not handle this
*/
return false;
}
if (!attributeFont.canDisplay(codePoint))
return false;
i += Character.charCount(codePoint);
}
}
return true;
}
@Override
public void drawText(AttributedCharacterIterator iterator, IFontTextDrawerEnv env)
throws IOException, FontFormatException
{
PDPageContentStream contentStream = env.getContentStream();
contentStream.beginText();
Matrix textMatrix = new Matrix();
textMatrix.scale(1, -1);
contentStream.setTextMatrix(textMatrix);
StringBuilder sb = new StringBuilder();
boolean run = true;
while (run)
{
Font attributeFont = (Font) iterator.getAttribute(TextAttribute.FONT);
if (attributeFont == null)
attributeFont = env.getFont();
Number fontSize = ((Number) iterator.getAttribute(TextAttribute.SIZE));
if (fontSize != null)
attributeFont = attributeFont.deriveFont(fontSize.floatValue());
PDFont font = applyFont(attributeFont, env);
Paint paint = (Paint) iterator.getAttribute(TextAttribute.FOREGROUND);
if (paint == null)
paint = env.getPaint();
boolean isStrikeThrough = TextAttribute.STRIKETHROUGH_ON
.equals(iterator.getAttribute(TextAttribute.STRIKETHROUGH));
boolean isUnderline = TextAttribute.UNDERLINE_ON
.equals(iterator.getAttribute(TextAttribute.UNDERLINE));
boolean isLigatures = TextAttribute.LIGATURES_ON
.equals(iterator.getAttribute(TextAttribute.LIGATURES));
run = iterateRun(iterator, sb);
String text = sb.toString();
/*
* Apply the paint
*/
env.applyPaint(paint, null);
/*
* If we force the text write we may encounter situations where the font can not
* display the characters. PDFBox will throw an exception in this case. We will
* just silently ignore the text and not display it instead.
*/
try
{
showTextOnStream(env, contentStream, attributeFont, font, isStrikeThrough,
isUnderline, isLigatures, text);
}
catch (IllegalArgumentException e)
{
if (font instanceof PDType1Font && !font.isEmbedded())
{
/*
* We tried to use a builtin default font, but it does not have the needed
* characters. So we use a embedded font as fallback.
*/
try
{
if (fallbackFontUnknownEncodings == null)
fallbackFontUnknownEncodings = findFallbackFont(env);
if (fallbackFontUnknownEncodings != null)
{
env.getContentStream().setFont(fallbackFontUnknownEncodings,
attributeFont.getSize2D());
showTextOnStream(env, contentStream, attributeFont,
fallbackFontUnknownEncodings, isStrikeThrough, isUnderline,
isLigatures, text);
e = null;
}
}
catch (IllegalArgumentException e1)
{
e = e1;
}
}
if (e != null)
System.err.println("PDFBoxGraphics: Can not map text " + text + " with font "
+ attributeFont.getFontName() + ": " + e.getMessage());
}
}
contentStream.endText();
}
@Override
public FontMetrics getFontMetrics(final Font f, IFontTextDrawerEnv env)
throws IOException, FontFormatException
{
final FontMetrics defaultMetrics = env.getCalculationGraphics().getFontMetrics(f);
final PDFont pdFont = mapFont(f, env);
/*
* By default we delegate to the buffered image based calculation. This is wrong
* as soon as we use the native PDF Box font, as those have sometimes different widths.
*
* But it is correct and fine as long as we use vector shapes.
*/
if (pdFont == null)
return defaultMetrics;
return new FontMetrics(f)
{
public int getDescent()
{
return defaultMetrics.getDescent();
}
public int getHeight()
{
return defaultMetrics.getHeight();
}
public int getMaxAscent()
{
return defaultMetrics.getMaxAscent();
}
public int getMaxDescent()
{
return defaultMetrics.getMaxDescent();
}
public boolean hasUniformLineMetrics()
{
return defaultMetrics.hasUniformLineMetrics();
}
public LineMetrics getLineMetrics(String str, Graphics context)
{
return defaultMetrics.getLineMetrics(str, context);
}
public LineMetrics getLineMetrics(String str, int beginIndex, int limit,
Graphics context)
{
return defaultMetrics.getLineMetrics(str, beginIndex, limit, context);
}
public LineMetrics getLineMetrics(char[] chars, int beginIndex, int limit,
Graphics context)
{
return defaultMetrics.getLineMetrics(chars, beginIndex, limit, context);
}
public LineMetrics getLineMetrics(CharacterIterator ci, int beginIndex, int limit,
Graphics context)
{
return defaultMetrics.getLineMetrics(ci, beginIndex, limit, context);
}
public Rectangle2D getStringBounds(String str, Graphics context)
{
return defaultMetrics.getStringBounds(str, context);
}
public Rectangle2D getStringBounds(String str, int beginIndex, int limit,
Graphics context)
{
return defaultMetrics.getStringBounds(str, beginIndex, limit, context);
}
public Rectangle2D getStringBounds(char[] chars, int beginIndex, int limit,
Graphics context)
{
return defaultMetrics.getStringBounds(chars, beginIndex, limit, context);
}
public Rectangle2D getStringBounds(CharacterIterator ci, int beginIndex, int limit,
Graphics context)
{
return defaultMetrics.getStringBounds(ci, beginIndex, limit, context);
}
public Rectangle2D getMaxCharBounds(Graphics context)
{
return defaultMetrics.getMaxCharBounds(context);
}
@Override
public int getAscent()
{
return defaultMetrics.getAscent();
}
@Override
public int getMaxAdvance()
{
return defaultMetrics.getMaxAdvance();
}
@Override
public int getLeading()
{
return defaultMetrics.getLeading();
}
@Override
public FontRenderContext getFontRenderContext()
{
return defaultMetrics.getFontRenderContext();
}
@Override
public int charWidth(char ch)
{
char[] chars = { ch };
return charsWidth(chars, 0, chars.length);
}
@Override
public int charWidth(int codePoint)
{
char[] data = Character.toChars(codePoint);
return charsWidth(data, 0, data.length);
}
@Override
public int charsWidth(char[] data, int off, int len)
{
return stringWidth(new String(data, off, len));
}
@Override
public int stringWidth(String str)
{
try
{
return (int) (pdFont.getStringWidth(str) / 1000 * f.getSize());
}
catch (IOException e)
{
throw new RuntimeException(e);
}
catch (IllegalArgumentException e)
{
/*
* We let unknown chars be handled with
*/
return defaultMetrics.stringWidth(str);
}
}
@Override
public int[] getWidths()
{
try
{
int[] first256Widths = new int[256];
for (int i = 0; i < first256Widths.length; i++)
first256Widths[i] = (int) (pdFont.getWidth(i) / 1000 * f.getSize());
return first256Widths;
}
catch (IOException e)
{
throw new RuntimeException(e);
}
}
};
}
private PDFont fallbackFontUnknownEncodings;
private PDFont findFallbackFont(IFontTextDrawerEnv env) throws IOException
{
/*
* We search for the right font in the system folders... We try to use
* LucidaSansRegular and if not found Arial, because this fonts often exists. We
* use the Java default font as fallback.
*
* Normally this method is only used and called if a default font misses some
* special characters, e.g. Hebrew or Arabic characters.
*/
String javaHome = System.getProperty("java.home", ".");
String javaFontDir = javaHome + "/lib/fonts";
String windir = System.getenv("WINDIR");
if (windir == null)
windir = javaFontDir;
File[] paths = new File[] { new File(new File(windir), "fonts"),
new File(System.getProperty("user.dir", ".")), new File("/Library/Fonts"),
new File("/usr/share/fonts/truetype"), new File("/usr/share/fonts/truetype/dejavu"),
new File("/usr/share/fonts/truetype/liberation"),
new File("/usr/share/fonts/truetype/noto"), new File(javaFontDir) };
File foundFontFile = null;
for (String fontFileName : new String[] { "LucidaSansRegular.ttf", "arial.ttf", "Arial.ttf",
"DejaVuSans.ttf", "LiberationMono-Regular.ttf", "NotoSerif-Regular.ttf" })
{
for (File path : paths)
{
File arialFile = new File(path, fontFileName);
if (arialFile.exists())
{
foundFontFile = arialFile;
break;
}
}
if (foundFontFile != null)
break;
}
/*
* If we did not find any font, we can't do anything :(
*/
if (foundFontFile == null)
return null;
return PDType0Font.load(env.getDocument(), foundFontFile);
}
private void showTextOnStream(IFontTextDrawerEnv env, PDPageContentStream contentStream,
Font attributeFont, PDFont font, boolean isStrikeThrough, boolean isUnderline,
boolean isLigatures, String text) throws IOException
{
if (isStrikeThrough || isUnderline)
{
// noinspection unused
float stringWidth = font.getStringWidth(text);
// noinspection unused
LineMetrics lineMetrics = attributeFont
.getLineMetrics(text, env.getFontRenderContext());
/*
* TODO: We can not draw that yet, we must do that later. While in textmode its
* not possible to draw lines...
*/
}
// noinspection StatementWithEmptyBody
if (isLigatures)
{
/*
* No idea how to map this ...
*/
}
contentStream.showText(text);
}
private PDFont applyFont(Font font, IFontTextDrawerEnv env)
throws IOException, FontFormatException
{
PDFont fontToUse = mapFont(font, env);
if (fontToUse == null)
{
/*
* If we have no font but are forced to apply a font, we just use the default
* builtin PDF font...
*/
fontToUse = PdfBoxGraphics2DFontTextDrawerDefaultFonts.chooseMatchingHelvetica(font);
}
env.getContentStream().setFont(fontToUse, font.getSize2D());
return fontToUse;
}
/**
* Try to map the java.awt.Font to a PDFont.
*
* @param font the java.awt.Font for which a mapping should be found
* @param env environment of the font mapper
* @return the PDFont or null if none can be found.
* @throws IOException when the font can not be loaded
* @throws FontFormatException when the font file can not be loaded
*/
@SuppressWarnings("WeakerAccess")
protected PDFont mapFont(final Font font, final IFontTextDrawerEnv env)
throws IOException, FontFormatException
{
/*
* If we have any font registering's, we must perform them now
*/
for (final FontEntry fontEntry : fontFiles)
{
if (fontEntry.overrideName == null)
{
Font javaFont = Font.createFont(Font.TRUETYPE_FONT, fontEntry.file);
fontEntry.overrideName = javaFont.getFontName();
}
if (fontEntry.file.getName().toLowerCase(Locale.US).endsWith(".ttc"))
{
TrueTypeCollection collection = new TrueTypeCollection(fontEntry.file);
collection.processAllFonts(new TrueTypeCollection.TrueTypeFontProcessor()
{
@Override
public void process(TrueTypeFont ttf) throws IOException
{
PDFont pdFont = PDType0Font.load(env.getDocument(), ttf, true);
fontMap.put(fontEntry.overrideName, pdFont);
fontMap.put(pdFont.getName(), pdFont);
}
});
}
else
{
/*
* We load the font using the file.
*/
PDFont pdFont = PDType0Font.load(env.getDocument(), fontEntry.file);
fontMap.put(fontEntry.overrideName, pdFont);
}
}
fontFiles.clear();
return fontMap.get(font.getFontName());
}
private boolean iterateRun(AttributedCharacterIterator iterator, StringBuilder sb)
{
sb.setLength(0);
int charCount = iterator.getRunLimit() - iterator.getRunStart();
while (charCount-- > 0)
{
char c = iterator.current();
iterator.next();
if (c == AttributedCharacterIterator.DONE)
{
return false;
}
else
{
sb.append(c);
}
}
return (iterator.getIndex() < iterator.getRunLimit());
}
}

17
src/ooxml/java/org/apache/poi/xslf/util/PDFFormat.java
View File

@ -24,6 +24,7 @@ import java.io.File;
import java.io.IOException;
import de.rototor.pdfbox.graphics2d.PdfBoxGraphics2D;
import de.rototor.pdfbox.graphics2d.PdfBoxGraphics2DFontTextDrawer;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
@ -36,8 +37,13 @@ public class PDFFormat implements OutputFormat {
private final PDDocument document;
private PDPageContentStream contentStream;
private PdfBoxGraphics2D pdfBoxGraphics2D;
private PdfBoxGraphics2DFontTextDrawer fontTextDrawer;
public PDFFormat(boolean textAsShapes, String fontDir, String fontTtf) {
if (!textAsShapes) {
fontTextDrawer = new PDFFontMapper(fontDir, fontTtf);
}
public PDFFormat() {
document = new PDDocument();
}
@ -46,7 +52,10 @@ public class PDFFormat implements OutputFormat {
PDPage page = new PDPage(new PDRectangle((float) width, (float) height));
document.addPage(page);
contentStream = new PDPageContentStream(document, page);
pdfBoxGraphics2D = new PdfBoxGraphics2D(document, (float)width, (float)height);
pdfBoxGraphics2D = new PdfBoxGraphics2D(document, (float) width, (float) height);
if (fontTextDrawer != null) {
pdfBoxGraphics2D.setFontTextDrawer(fontTextDrawer);
}
return pdfBoxGraphics2D;
}
@ -67,5 +76,9 @@ public class PDFFormat implements OutputFormat {
@Override
public void close() throws IOException {
document.close();
if (fontTextDrawer != null) {
fontTextDrawer.close();
}
}
}

25
src/ooxml/java/org/apache/poi/xslf/util/PPTX2PNG.java
View File

@ -74,7 +74,10 @@ public final class PPTX2PNG {
" -textAsShapes text elements are saved as shapes in SVG, necessary for variable spacing\n" +
" often found in math formulas\n" +
" -charset <cs> sets the default charset to be used, defaults to Windows-1252\n" +
" -emfHeaderBounds force the usage of the emf header bounds to calculate the bounding box";
" -emfHeaderBounds force the usage of the emf header bounds to calculate the bounding box\n" +
" -fontdir <dir> (PDF only) font directories separated by \";\" - use $HOME for current users home dir\n" +
" defaults to the usual plattform directories\n" +
" -fontTtf <regex> (PDF only) regex to match the .ttf filenames";
System.out.println(msg);
// no System.exit here, as we also run in junit tests!
@ -104,6 +107,8 @@ public final class PPTX2PNG {
private boolean textAsShapes = false;
private Charset charset = LocaleUtil.CHARSET_1252;
private boolean emfHeaderBounds = false;
private String fontDir = null;
private String fontTtf = null;
private PPTX2PNG() {
}
@ -192,6 +197,22 @@ public final class PPTX2PNG {
case "-emfheaderbounds":
emfHeaderBounds = true;
break;
case "-fontdir":
if (opt != null) {
fontDir = opt;
i++;
} else {
fontDir = null;
}
break;
case "-fontttf":
if (opt != null) {
fontTtf = opt;
i++;
} else {
fontTtf = null;
}
break;
default:
file = new File(args[i]);
break;
@ -313,7 +334,7 @@ public final class PPTX2PNG {
case "svg":
return new SVGFormat(textAsShapes);
case "pdf":
return new PDFFormat();
return new PDFFormat(textAsShapes,fontDir,fontTtf);
default:
return new BitmapFormat(format);
}

4
src/ooxml/testcases/org/apache/poi/xslf/usermodel/TestPPTX2PNG.java
View File

@ -49,6 +49,7 @@ public class TestPPTX2PNG {
private static boolean xslfOnly;
private static final POIDataSamples samples = POIDataSamples.getSlideShowInstance();
private static final File basedir = null;
private static final String files =
"bug64693.pptx, 53446.ppt, alterman_security.ppt, alterman_security.pptx, KEY02.pptx, themes.pptx, " +
"backgrounds.pptx, layouts.pptx, sample.pptx, shapes.pptx, 54880_chinese.ppt, keyframes.pptx," +
@ -74,6 +75,8 @@ public class TestPPTX2PNG {
@Parameter
public String pptFile;
@Parameters(name="{0}")
public static Collection<String> data() {
Function<String, Stream<String>> fun = (basedir == null) ? Stream::of :
@ -105,6 +108,7 @@ public class TestPPTX2PNG {
"-quiet",
// "-charset", "GBK",
// "-emfHeaderBounds",
// "-textAsShapes",
"-fixside", "long",
"-scale", "800"
));

17
src/scratchpad/src/org/apache/poi/hwmf/draw/HwmfGraphics.java
View File

@ -575,16 +575,18 @@ public class HwmfGraphics implements HwmfCharsetAware {
}
private void addAttributes(BiConsumer<TextAttribute,Object> attributes, HwmfFont font, String typeface) {
attributes.accept(TextAttribute.FAMILY, typeface);
attributes.accept(TextAttribute.SIZE, getFontHeight(font));
Map<TextAttribute,Object> att = new HashMap<>();
att.put(TextAttribute.FAMILY, typeface);
att.put(TextAttribute.SIZE, getFontHeight(font));
if (font.isStrikeOut()) {
attributes.accept(TextAttribute.STRIKETHROUGH, TextAttribute.STRIKETHROUGH_ON);
att.put(TextAttribute.STRIKETHROUGH, TextAttribute.STRIKETHROUGH_ON);
}
if (font.isUnderline()) {
attributes.accept(TextAttribute.UNDERLINE, TextAttribute.UNDERLINE_ON);
att.put(TextAttribute.UNDERLINE, TextAttribute.UNDERLINE_ON);
}
if (font.isItalic()) {
attributes.accept(TextAttribute.POSTURE, TextAttribute.POSTURE_OBLIQUE);
att.put(TextAttribute.POSTURE, TextAttribute.POSTURE_OBLIQUE);
}
// convert font weight to awt font weight - usually a font weight of 400 is regarded as regular
final int fw = font.getWeight();
@ -595,7 +597,10 @@ public class HwmfGraphics implements HwmfCharsetAware {
break;
}
}
attributes.accept(TextAttribute.WEIGHT, awtFW);
att.put(TextAttribute.WEIGHT, awtFW);
att.put(TextAttribute.FONT, new Font(att));
att.forEach(attributes);
}
private double getFontHeight(HwmfFont font) {

17
src/scratchpad/testcases/commons-logging.properties Normal file
View File

@ -0,0 +1,17 @@
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JLogger
log4j.configuration=log4j.properties

4
src/scratchpad/testcases/log4j.properties
View File

@ -18,4 +18,6 @@ log4j.rootLogger=ALL,CONSOLE
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.target=System.out
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{dd.MM HH:mm:ss} %-30.30c %5p %m%n
log4j.appender.CONSOLE.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %c %5p %m%n
log4j.logger.org.apache.fontbox.ttf=INFO