BLGlyphRunIterator Class Reference

A helper to iterate over a BLGlyphRun.

Takes into consideration glyph-id advance and glyph-offset advance.

Example:

void inspectGlyphRun(const BLGlyphRun& glyphRun) noexcept {
  BLGlyphRunIterator it(glyphRun);
  if (it.hasOffsets()) {
    while (!it.atEnd()) {
      BLGlyphId glyphId = it.glyphId();
      BLPoint offset = it.placement();
 
      // Do something with `glyphId` and `offset`.
 
      it.advance();
    }
  }
  else {
    while (!it.atEnd()) {
      BLGlyphId glyphId = it.glyphId();
 
      // Do something with `glyphId`.
 
      it.advance();
    }
  }
}

Public Members

Members

size_t index

size_t size

void* glyphData

void* placementData

intptr_t glyphAdvance

intptr_t placementAdvance

Member Functions

Construction & Destruction

BLGlyphRunIterator()

BLGlyphRunIterator(const BLGlyphRun& glyphRun)

Common Functionality

void reset()

void reset(const BLGlyphRun& glyphRun)

Accessors

bool empty() const

bool atEnd() const

bool hasPlacement() const

BLGlyphId glyphId() const

template<typename T>

const T& placement() const

Iterator Interface

void advance()