CTLine

typedef const struct CF_BRIDGED_TYPE(id) __CTLine * CTLineRef;

typedef CF_OPTIONS(CFOptionFlags, CTLineBoundsOptions) {
    kCTLineBoundsExcludeTypographicLeading  = 1 << 0,
    kCTLineBoundsExcludeTypographicShifts   = 1 << 1,
    kCTLineBoundsUseHangingPunctuation      = 1 << 2,
    kCTLineBoundsUseGlyphPathBounds         = 1 << 3,
    kCTLineBoundsUseOpticalBounds           = 1 << 4,
    kCTLineBoundsIncludeLanguageExtents CT_ENUM_AVAILABLE(10_11, 8_0) = 1 << 5,
};

typedef CF_ENUM(uint32_t, CTLineTruncationType) {
    kCTLineTruncationStart  = 0,
    kCTLineTruncationEnd    = 1,
    kCTLineTruncationMiddle = 2
};

CFTypeID CTLineGetTypeID( void ) CT_AVAILABLE(10_5, 3_2);

CTLineRef CTLineCreateWithAttributedString(
    CFAttributedStringRef attrString ) CT_AVAILABLE(10_5, 3_2);

CTLineRef __nullable CTLineCreateTruncatedLine(
    CTLineRef line,
    double width,
    CTLineTruncationType truncationType,
    CTLineRef __nullable truncationToken ) CT_AVAILABLE(10_5, 3_2);

CTLineRef __nullable CTLineCreateJustifiedLine(
    CTLineRef line,
    CGFloat justificationFactor,
    double justificationWidth ) CT_AVAILABLE(10_5, 3_2);

CFIndex CTLineGetGlyphCount(
    CTLineRef line ) CT_AVAILABLE(10_5, 3_2);

CFArrayRef CTLineGetGlyphRuns(
    CTLineRef line ) CT_AVAILABLE(10_5, 3_2);

CFRange CTLineGetStringRange(
    CTLineRef line ) CT_AVAILABLE(10_5, 3_2);

double CTLineGetPenOffsetForFlush(
    CTLineRef line,
    CGFloat flushFactor,
    double flushWidth ) CT_AVAILABLE(10_5, 3_2);

void CTLineDraw(
    CTLineRef line,
    CGContextRef context ) CT_AVAILABLE(10_5, 3_2);

double CTLineGetTypographicBounds(
    CTLineRef line,
    CGFloat * __nullable ascent,
    CGFloat * __nullable descent,
    CGFloat * __nullable leading ) CT_AVAILABLE(10_5, 3_2);

CGRect CTLineGetBoundsWithOptions(
    CTLineRef line,
    CTLineBoundsOptions options ) CT_AVAILABLE(10_8, 6_0);

double CTLineGetTrailingWhitespaceWidth(
    CTLineRef line ) CT_AVAILABLE(10_5, 3_2);

CGRect CTLineGetImageBounds(
    CTLineRef line,
    CGContextRef __nullable context ) CT_AVAILABLE(10_5, 3_2);

CFIndex CTLineGetStringIndexForPosition(
    CTLineRef line,
    CGPoint position ) CT_AVAILABLE(10_5, 3_2);

CGFloat CTLineGetOffsetForStringIndex(
    CTLineRef line,
    CFIndex charIndex,
    CGFloat * __nullable secondaryOffset ) CT_AVAILABLE(10_5, 3_2);

void CTLineEnumerateCaretOffsets(
    CTLineRef line,
    void (^block)(double offset, CFIndex charIndex, bool leadingEdge, bool* stop) ) CT_AVAILABLE(10_11, 9_0);