SkBreakIterator_libgrapheme Class Reference

Inheritance diagram for SkBreakIterator_libgrapheme:

Public Member Functions
	SkBreakIterator_libgrapheme (SkUnicode_libgrapheme *unicode)
Position	first () override
Position	current () override
Position	next () override
Status	status () override
bool	isDone () override
bool	setText (const char utftext8[], int utf8Units) override
bool	setText (const char16_t utftext16[], int utf16Units) override
Public Member Functions inherited from SkBreakIterator
virtual	~SkBreakIterator ()=default
virtual Position	first ()=0
virtual Position	current ()=0
virtual Position	next ()=0
virtual Status	status ()=0
virtual bool	isDone ()=0
virtual bool	setText (const char utftext8[], int utf8Units)=0
virtual bool	setText (const char16_t utftext16[], int utf16Units)=0

Additional Inherited Members
Public Types inherited from SkBreakIterator
typedef int32_t	Position
typedef int32_t	Status

Detailed Description

Definition at line 238 of file SkUnicode_libgrapheme.cpp.

Constructor & Destructor Documentation

SkBreakIterator_libgrapheme()

SkBreakIterator_libgrapheme::SkBreakIterator_libgrapheme ( SkUnicode_libgrapheme *  unicode )

inlineexplicit

Definition at line 244 of file SkUnicode_libgrapheme.cpp.

: fUnicode(unicode) { }

Member Function Documentation

current()

Position SkBreakIterator_libgrapheme::current ( )

inlineoverridevirtual

Implements SkBreakIterator.

Definition at line 247 of file SkUnicode_libgrapheme.cpp.

      { return fLineBreaks[fLineBreakIndex].pos; }

first()

Position SkBreakIterator_libgrapheme::first ( )

inlineoverridevirtual

Implements SkBreakIterator.

Definition at line 245 of file SkUnicode_libgrapheme.cpp.

      { return fLineBreaks[(fLineBreakIndex = 0)].pos; }

isDone()

bool SkBreakIterator_libgrapheme::isDone ( )

inlineoverridevirtual

Implements SkBreakIterator.

Definition at line 257 of file SkUnicode_libgrapheme.cpp.

{ return fLineBreaks[fLineBreakIndex].pos == kDone; }

next()

Position SkBreakIterator_libgrapheme::next ( )

inlineoverridevirtual

Implements SkBreakIterator.

Definition at line 249 of file SkUnicode_libgrapheme.cpp.

      { return fLineBreaks[++fLineBreakIndex].pos; }

setText() [1/2]

bool SkBreakIterator_libgrapheme::setText ( const char  utftext8[], int  utf8Units  )

inlineoverridevirtual

Implements SkBreakIterator.

Definition at line 258 of file SkUnicode_libgrapheme.cpp.

                                                                {
        fLineBreaks.clear();
        size_t lineBreak = 0;
        // first() must always go to the beginning of the string.
        fLineBreaks.emplace_back(0, SkUnicode::LineBreakType::kHardLineBreak);
        for (size_t pos = 0; pos < utf8Units;) {
            pos += grapheme_next_line_break_utf8(utftext8 + pos, utf8Units - pos);
            auto codePoint = utftext8[pos];
            fLineBreaks.emplace_back(pos,
                                     fUnicode->isHardBreak(codePoint)
                                    ? SkUnicode::LineBreakType::kHardLineBreak
                                    : SkUnicode::LineBreakType::kSoftLineBreak);
        }
        // There is always an "end" which signals "done".
        fLineBreaks.emplace_back(kDone, SkUnicode::LineBreakType::kHardLineBreak);
        fLineBreakIndex = 0;
        return true;
    }

setText() [2/2]

bool SkBreakIterator_libgrapheme::setText ( const char16_t  utftext16[], int  utf16Units  )

inlineoverridevirtual

Implements SkBreakIterator.

Definition at line 276 of file SkUnicode_libgrapheme.cpp.

                                                                      {
        SkASSERT(false);
        return false;
    }

status()

Status SkBreakIterator_libgrapheme::status ( )

inlineoverridevirtual

Implements SkBreakIterator.

Definition at line 251 of file SkUnicode_libgrapheme.cpp.

                             {
        return fLineBreaks[fLineBreakIndex].breakType ==
                       SkUnicode::LineBreakType::kHardLineBreak
                       ? SkUnicode::CodeUnitFlags::kHardLineBreakBefore
                       : SkUnicode::CodeUnitFlags::kSoftLineBreakBefore;
    }

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The documentation for this class was generated from the following file:

• third_party/skia/modules/skunicode/src/SkUnicode_libgrapheme.cpp