[Webkit-unassigned] [Bug 185056] New: Certain glyphs are being cut off when they appear at the beginning or end of a line in a column

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=185056

            Bug ID: 185056
           Summary: Certain glyphs are being cut off when they appear at
                    the beginning or end of a line in a column
           Product: WebKit
           Version: Safari 11
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: bya at 180g.co
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Created attachment 338926

  --> https://bugs.webkit.org/attachment.cgi?id=338926&action=review

Column with cut-off f and j

When using a multi-column layout, a glyph may be cut off if it is the first or last letter in a line. This is especially noticeable in a font like Baskerville, which has letters with instrokes and outstrokes that extend beyond the core of the glyph.

For instance, the terminal of the f will be cut off when it appears at the end of a line and the tail of a j will be cut off when it appears at the beginning. I've attached some very simple code that illustrates this.

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