IHyphenationCallback

public interface IHyphenationCallback

Implemented by classes which can register hyphenation dictionaries.

Examples:

Shows how to open and register a dictionary from a file.

 public void registerDictionary() throws Exception {
     // Set up a callback that tracks warnings that occur during hyphenation dictionary registration.
     WarningInfoCollection warningInfoCollection = new WarningInfoCollection();
     Hyphenation.setWarningCallback(warningInfoCollection);

     // Register an English (US) hyphenation dictionary by stream.
     InputStream dictionaryStream = new FileInputStream(getMyDir() + "hyph_en_US.dic");
     Hyphenation.registerDictionary("en-US", dictionaryStream);

     Assert.assertEquals(0, warningInfoCollection.getCount());

     // Open a document with a locale that Microsoft Word may not hyphenate on an English machine, such as German.
     Document doc = new Document(getMyDir() + "German text.docx");

     // To hyphenate that document upon saving, we need a hyphenation dictionary for the "de-CH" language code.
     // This callback will handle the automatic request for that dictionary.
     Hyphenation.setCallback(new CustomHyphenationDictionaryRegister());

     // When we save the document, German hyphenation will take effect.
     doc.save(getArtifactsDir() + "Hyphenation.RegisterDictionary.pdf");

     // This dictionary contains two identical patterns, which will trigger a warning.
     Assert.assertEquals(warningInfoCollection.getCount(), 1);
     Assert.assertEquals(warningInfoCollection.get(0).getWarningType(), WarningType.MINOR_FORMATTING_LOSS);
     Assert.assertEquals(warningInfoCollection.get(0).getSource(), WarningSource.LAYOUT);
     Assert.assertEquals(warningInfoCollection.get(0).getDescription(), "Hyphenation dictionary contains duplicate patterns. " +
             "The only first found pattern will be used. Content can be wrapped differently.");
 }

 /// 
 /// Associates ISO language codes with local system filenames for hyphenation dictionary files.
 /// 
 private static class CustomHyphenationDictionaryRegister implements IHyphenationCallback {
     public CustomHyphenationDictionaryRegister() {
         mHyphenationDictionaryFiles = new HashMap<>();
         {
             mHyphenationDictionaryFiles.put("en-US", getMyDir() + "hyph_en_US.dic");
             mHyphenationDictionaryFiles.put("de-CH", getMyDir() + "hyph_de_CH.dic");
         }
     }

     public void requestDictionary(String language) throws Exception {
         System.out.print("Hyphenation dictionary requested: " + language);

         if (Hyphenation.isDictionaryRegistered(language)) {
             System.out.println(", is already registered.");
             return;
         }

         if (mHyphenationDictionaryFiles.containsKey(language)) {
             Hyphenation.registerDictionary(language, mHyphenationDictionaryFiles.get(language));
             System.out.println(", successfully registered.");
             return;
         }

         System.out.println(", no respective dictionary file known by this Callback.");
     }

     private final HashMap mHyphenationDictionaryFiles;
 }
 

Methods

Method	Description
requestDictionary(String language)	Notifies application that hyphenation dictionary for the specified language wasn’t found and may need to be registered.

requestDictionary(String language)

public abstract void requestDictionary(String language)

Notifies application that hyphenation dictionary for the specified language wasn’t found and may need to be registered.

Implementation should find a dictionary and register it using M:Aspose.Words.Hyphenation.RegisterDictionary(System.String,System.IO.Stream) methods.

If dictionary is unavailable for the specified language implementation can opt out of further calls for the same language using Hyphenation.registerDictionary(java.lang.String, java.lang.String) with null value.

Remarks:

Exceptions thrown by this method will abort execution of page layout process.

Examples:

Shows how to open and register a dictionary from a file.

 public void registerDictionary() throws Exception {
     // Set up a callback that tracks warnings that occur during hyphenation dictionary registration.
     WarningInfoCollection warningInfoCollection = new WarningInfoCollection();
     Hyphenation.setWarningCallback(warningInfoCollection);

     // Register an English (US) hyphenation dictionary by stream.
     InputStream dictionaryStream = new FileInputStream(getMyDir() + "hyph_en_US.dic");
     Hyphenation.registerDictionary("en-US", dictionaryStream);

     Assert.assertEquals(0, warningInfoCollection.getCount());

     // Open a document with a locale that Microsoft Word may not hyphenate on an English machine, such as German.
     Document doc = new Document(getMyDir() + "German text.docx");

     // To hyphenate that document upon saving, we need a hyphenation dictionary for the "de-CH" language code.
     // This callback will handle the automatic request for that dictionary.
     Hyphenation.setCallback(new CustomHyphenationDictionaryRegister());

     // When we save the document, German hyphenation will take effect.
     doc.save(getArtifactsDir() + "Hyphenation.RegisterDictionary.pdf");

     // This dictionary contains two identical patterns, which will trigger a warning.
     Assert.assertEquals(warningInfoCollection.getCount(), 1);
     Assert.assertEquals(warningInfoCollection.get(0).getWarningType(), WarningType.MINOR_FORMATTING_LOSS);
     Assert.assertEquals(warningInfoCollection.get(0).getSource(), WarningSource.LAYOUT);
     Assert.assertEquals(warningInfoCollection.get(0).getDescription(), "Hyphenation dictionary contains duplicate patterns. " +
             "The only first found pattern will be used. Content can be wrapped differently.");
 }

 /// 
 /// Associates ISO language codes with local system filenames for hyphenation dictionary files.
 /// 
 private static class CustomHyphenationDictionaryRegister implements IHyphenationCallback {
     public CustomHyphenationDictionaryRegister() {
         mHyphenationDictionaryFiles = new HashMap<>();
         {
             mHyphenationDictionaryFiles.put("en-US", getMyDir() + "hyph_en_US.dic");
             mHyphenationDictionaryFiles.put("de-CH", getMyDir() + "hyph_de_CH.dic");
         }
     }

     public void requestDictionary(String language) throws Exception {
         System.out.print("Hyphenation dictionary requested: " + language);

         if (Hyphenation.isDictionaryRegistered(language)) {
             System.out.println(", is already registered.");
             return;
         }

         if (mHyphenationDictionaryFiles.containsKey(language)) {
             Hyphenation.registerDictionary(language, mHyphenationDictionaryFiles.get(language));
             System.out.println(", successfully registered.");
             return;
         }

         System.out.println(", no respective dictionary file known by this Callback.");
     }

     private final HashMap mHyphenationDictionaryFiles;
 }
 

Parameters:

Parameter	Type	Description
language	java.lang.String	A language name, e.g. “en-US”. See .NET documentation for “culture name” and RFC 4646 for details.