RFR: 7156751: [macosx] Problem with printing

[Sergey Bylokhov]

On Thu, 25 Sep 2025 18:40:27 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

>> This PR fixes one more issue preventing `test/jdk/java/awt/print/PrinterJob/PrintTextTest.java` from being removed from the problem list on macOS. The issue is the placement of line 8 ("GlyphVector with position adjustments") during printing. There were two issues: (a) the necessary transform was being applied to each glyph position, but not to the initial start position, and (b) the y-advances were being unnecessarily inverted. This last one is a head-scratcher, because it seems very intentional, but seems to generate incorrect results (every second character was drawing below the line instead of above it).
>
> It seems PrintTextTest catches too many issues, can we create a small test to cover just this patch?

>@mrserb I tried writing a smaller automated test for this change, using PostScript to make it possible to "print" without printing and then roughly extract the bounds of the text from the generated PostScript, but it doesn't exercise the code in CTextPipe.m. I think this requires the manual testing provided by PrintTextTest.

ok, sounds good

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PR Comment: https://git.openjdk.org/jdk/pull/27486#issuecomment-3344814355