Instance Method


Calculates the line fragment rectangle and line fragment used rectangle for blank lines.


- (void)getLineFragmentRect:(NSRectPointer)lineFragmentRect usedRect:(NSRectPointer)lineFragmentUsedRect forParagraphSeparatorGlyphRange:(NSRange)paragraphSeparatorGlyphRange atProposedOrigin:(NSPoint)lineOrigin;



On return, the calculated line fragment rectangle.


On return, the used rectangle (the portion of the line fragment rectangle that actually contains marks).


The range of glyphs under consideration. A paragraphSeparatorGlyphRange with length 0 indicates an extra line fragment (which occurs if the last character in the paragraph is a line separator).


The origin point of the line fragment rectangle.

See Also

Laying Out Glyphs

- layoutGlyphsInLayoutManager:startingAtGlyphIndex:maxNumberOfLineFragments:nextGlyphIndex:

Lays out glyphs in the specified layout manager starting at a specified glyph.

- boundingBoxForControlGlyphAtIndex:forTextContainer:proposedLineFragment:glyphPosition:characterIndex:

Returns the bounding rectangle for the specified control glyph with the specified parameters.

- getLineFragmentRect:usedRect:remainingRect:forStartingGlyphAtIndex:proposedRect:lineSpacing:paragraphSpacingBefore:paragraphSpacingAfter:

Calculates line fragment rectangle, line fragment used rectangle, and remaining rectangle for a line fragment.

- hyphenCharacterForGlyphAtIndex:

Returns the hyphen character to be inserted after the specified glyph.

- hyphenationFactorForGlyphAtIndex:

Returns the hyphenation factor in effect at a specified location.

- shouldBreakLineByHyphenatingBeforeCharacterAtIndex:

Returns whether the line being laid out should be broken by hyphenating at the specified character.

- shouldBreakLineByWordBeforeCharacterAtIndex:

Returns whether the line being laid out should be broken by a word break at the specified character.

- willSetLineFragmentRect:forGlyphRange:usedRect:baselineOffset:

Called by the typesetter just prior to storing the actual line fragment rectangle location in the layout manager.

- setHardInvalidation:forGlyphRange:

Sets whether to force the layout manager to invalidate the specified portion of the glyph cache when invalidating layout.