[Webkit-unassigned] [Bug 41304] New: Drawing border-radius from path should try to make corners symmetrical with dashed and dotted styles

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=41304

           Summary: Drawing border-radius from path should try to make
                    corners symmetrical with dashed and dotted styles
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: bdakin at apple.com


Created an attachment (id=59940)
 --> (https://bugs.webkit.org/attachment.cgi?id=59940)
Test case

http://trac.webkit.org/changeset/62035 introduced a new method of drawing border-radius using paths. Right now, this new code is only enabled for some platforms…if you want to know if your favorite platform has the new code path enabled, see if it has been added to #define HAVE_PATH_BASED_BORDER_RADIUS_DRAWING in RenderObject.h.

Here is what the spec says: "Note: There is no control over the spacing of the dots and dashes, nor over the length of the dashes. Implementations are encouraged to choose a spacing that makes the corners symmetrical."

Right now, our corners for dashes and dotted borders when drawn with the new method are not always symmetrical. Attached is a test case demonstrating a time when they are not symmetrical.

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