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CTFontGetBoundingRectsForGlyphs(_:_:_:_:_:)

Calculates the bounding rects for an array of glyphs and returns the overall bounding rectangle for the glyph run.

Declaration

func CTFontGetBoundingRectsForGlyphs(_ font: CTFont, _ orientation: CTFontOrientation, _ glyphs: UnsafePointer<CGGlyph>, _ boundingRects: UnsafeMutablePointer<CGRect>?, _ count: CFIndex) -> CGRect

Parameters

  • font:

    The font reference.

  • orientation:

    The intended drawing orientation of the glyphs. Used to determined which glyph metrics to return.

  • glyphs:

    An array of count number of glyphs.

  • boundingRects:

    On output, the computed glyph rectangles in an array of count number of Cgrect objects. If NULL, only the overall bounding rectangle is calculated.

  • count:

    The capacity of the glyphs and boundingRects buffers.

Return Value

The overall bounding rectangle for an array or run of glyphs. Returns CGRectNull on error.

Discussion

The bounding rectangles of the individual glyphs are returned through the boundingRects parameter. These are the design metrics from the font transformed in font space.

See Also

Getting Glyph Data