Package com.openhtmltopdf.layout

Class Breaker

java.lang.Object

com.openhtmltopdf.layout.Breaker

public class Breaker
extends java.lang.Object

A utility class that scans the text of a single inline box, looking for the next break point.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	Breaker.AppBreakOpportunity
static class	Breaker.BreakTextResult
private static class	Breaker.CharacterBreakerSupplier
private static class	Breaker.LineBreakerSupplier
static interface	Breaker.TextBreakerSupplier

Field Summary

Fields

Modifier and Type	Field	Description
static char	SOFT_HYPHEN
static Breaker.TextBreakerSupplier	STANDARD_CHARACTER_BREAKER
static Breaker.TextBreakerSupplier	STANDARD_LINE_BREAKER

Constructor Summary

Constructors

Constructor	Description
Breaker()

Method Summary

Modifier and Type	Method	Description
static void	breakFirstLetter(LayoutContext c, LineBreakContext context, int avail, CalculatedStyle style)
static Breaker.BreakTextResult	breakText(LayoutContext c, LineBreakContext context, int avail, CalculatedStyle style, boolean tryToBreakAnywhere, int lineWidth, boolean forceOutput)
(package private) static LineBreakContext.LineBreakResult	doBreakCharacters(java.lang.String currentString, FSTextBreaker lineIterator, FSTextBreaker charIterator, LineBreakContext context, int avail, float letterSpacing, java.util.function.ToIntFunction<java.lang.String> measurer)	Breaks at most one word (until the next word break) going character by character to see what will fit in.
private static LineBreakContext.LineBreakResult	doBreakText(LayoutContext c, LineBreakContext context, int avail, CalculatedStyle style, boolean tryToBreakAnywhere)
static LineBreakContext.LineBreakResult	doBreakText(LayoutContext c, LineBreakContext context, int avail, CalculatedStyle style, Breaker.TextBreakerSupplier lineBreaker)
(package private) static LineBreakContext.LineBreakResult	doBreakTextWords(java.lang.String currentString, LineBreakContext context, int avail, FSTextBreaker iterator, float letterSpacing, java.util.function.ToIntFunction<java.lang.String> measurer)
static FSTextBreaker	getCharacterBreakStream(java.lang.String currentString, SharedContext sharedContext)
private static int	getFirstLetterEnd(java.lang.String text, int start)
static FSTextBreaker	getLineBreakStream(java.lang.String s, SharedContext shared)
static int	getTextWidthWithLetterSpacing(CssContext c, FSFont font, java.lang.String text, float letterSpacing)	Gets the width of a string with letter spacing factored in.
private static Breaker.BreakTextResult	toBreakTextResult(LineBreakContext.LineBreakResult res)	Converts a LineBreakResult returned from doBreakText in word-wrapping mode to a BreakTextResult.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SOFT_HYPHEN

public static final char SOFT_HYPHEN

See Also:

Constant Field Values

STANDARD_CHARACTER_BREAKER

public static final Breaker.TextBreakerSupplier STANDARD_CHARACTER_BREAKER

STANDARD_LINE_BREAKER

public static final Breaker.TextBreakerSupplier STANDARD_LINE_BREAKER

Constructor Detail

Breaker

public Breaker()

Method Detail

breakFirstLetter

public static void breakFirstLetter(LayoutContext c,
                                    LineBreakContext context,
                                    int avail,
                                    CalculatedStyle style)

getFirstLetterEnd

private static int getFirstLetterEnd(java.lang.String text,
                                     int start)

breakText

public static Breaker.BreakTextResult breakText(LayoutContext c,
                                                LineBreakContext context,
                                                int avail,
                                                CalculatedStyle style,
                                                boolean tryToBreakAnywhere,
                                                int lineWidth,
                                                boolean forceOutput)

toBreakTextResult

private static Breaker.BreakTextResult toBreakTextResult(LineBreakContext.LineBreakResult res)

Converts a LineBreakResult returned from doBreakText in word-wrapping mode to a BreakTextResult. Throws a runtime exception if unexpected result found.

doBreakText

private static LineBreakContext.LineBreakResult doBreakText(LayoutContext c,
                                                            LineBreakContext context,
                                                            int avail,
                                                            CalculatedStyle style,
                                                            boolean tryToBreakAnywhere)

doBreakCharacters

static LineBreakContext.LineBreakResult doBreakCharacters(java.lang.String currentString,
                                                          FSTextBreaker lineIterator,
                                                          FSTextBreaker charIterator,
                                                          LineBreakContext context,
                                                          int avail,
                                                          float letterSpacing,
                                                          java.util.function.ToIntFunction<java.lang.String> measurer)

Breaks at most one word (until the next word break) going character by character to see what will fit in.

doBreakText

public static LineBreakContext.LineBreakResult doBreakText(LayoutContext c,
                                                           LineBreakContext context,
                                                           int avail,
                                                           CalculatedStyle style,
                                                           Breaker.TextBreakerSupplier lineBreaker)

doBreakTextWords

static LineBreakContext.LineBreakResult doBreakTextWords(java.lang.String currentString,
                                                         LineBreakContext context,
                                                         int avail,
                                                         FSTextBreaker iterator,
                                                         float letterSpacing,
                                                         java.util.function.ToIntFunction<java.lang.String> measurer)

getCharacterBreakStream

public static FSTextBreaker getCharacterBreakStream(java.lang.String currentString,
                                                    SharedContext sharedContext)

getLineBreakStream

public static FSTextBreaker getLineBreakStream(java.lang.String s,
                                               SharedContext shared)

getTextWidthWithLetterSpacing

public static int getTextWidthWithLetterSpacing(CssContext c,
                                                FSFont font,
                                                java.lang.String text,
                                                float letterSpacing)

Gets the width of a string with letter spacing factored in. Favor this method over using the text renderer directly.