[Webkit-unassigned] [Bug 18694] New: [CAIRO] Problem with rotation in a given matrix in SVG

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Apr 23 02:24:16 PDT 2008


           Summary: [CAIRO] Problem with rotation in a given matrix in SVG
           Product: WebKit
           Version: 526+ (Nightly build)
          Platform: PC
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: vbs85 at gmx.de

There is a problem with rotation of objects, if you use matrix() instead of
rotate(). I opened the bug just to be sure not to forget anything.

You can fix the problem for svg with:

AffineTransform::AffineTransform(double a, double b, double c, double d, double
tx, double ty)
    cairo_matrix_init(&m_transform, a, b, c, d, tx, ty);

Is there anything else to do? Perhaps setB(), b() and setC(), c() ?

In cairo a matrix is initialised with:
cairo_matrix_init(cairo_matrix_t *matrix, xx, yx, xy, yy, x0, y0);
So setB(), b() and setC() and c() could be wrong initialised.

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