Instance Method

notShownAttributeForGlyphAtIndex:

Indicates whether the glyph at the specified index has a visible representation.

Declaration

- (BOOL)notShownAttributeForGlyphAtIndex:(NSUInteger)glyphIndex;

Parameters

glyphIndex

Index of the glyph.

Return Value

YES if the glyph at glyphIndex is not shown; otherwise NO.

Discussion

Some glyphs are not shown. For example, a tab, newline, or attachment glyph is not shown; it just affects the layout of following glyphs or locates the attachment graphic. Space characters, however, typically are shown as glyphs with a displacement, although they leave no visible marks.

This method causes glyph generation and layout for the line fragment containing the specified glyph, or if noncontiguous layout is not enabled, up to and including that line fragment.

Raises an NSRangeException if glyphIndex is out of bounds.

See Also

Getting Layout Information

- attachmentSizeForGlyphAtIndex:

Returns the size of the attachment glyph at the specified index.

- drawsOutsideLineFragmentForGlyphAtIndex:

Indicates whether the glyph draws outside of its line fragment rectangle.

extraLineFragmentRect

The rectangle for the extra line fragment at the end of a document.

extraLineFragmentTextContainer

The text container that contains the extra line fragment rectangle.

extraLineFragmentUsedRect

The rectangle enclosing the insertion point drawn in the extra line fragment rectangle.

- firstUnlaidCharacterIndex

The index for the first character in the layout manager that has not been laid out.

- firstUnlaidGlyphIndex

The index for the first glyph in the layout manager that has not been laid out.

- getFirstUnlaidCharacterIndex:glyphIndex:

Returns the indexes for the first character and glyph that have invalid layout information.

- lineFragmentRectForGlyphAtIndex:effectiveRange:

Returns the rectangle for the line fragment in which the glyph is laid out and (optionally), by reference, the whole range of glyphs in that fragment.

- lineFragmentRectForGlyphAtIndex:effectiveRange:withoutAdditionalLayout:

Returns the line fragment rectangle containing the glyph at the given glyph index.

- lineFragmentUsedRectForGlyphAtIndex:effectiveRange:

Returns the usage rectangle for the line fragment and (optionally) returns the whole range of glyphs in that fragment.

- lineFragmentUsedRectForGlyphAtIndex:effectiveRange:withoutAdditionalLayout:

Returns the usage rectangle for the line fragment and (optionally) returns the whole range of glyphs that are in that fragment.

- locationForGlyphAtIndex:

Returns the location for the specified glyph within its line fragment.

- truncatedGlyphRangeInLineFragmentForGlyphAtIndex:

Returns the range of truncated glyphs for a line fragment containing the specified index.