On Wed, 7 May 2025 22:23:02 GMT, Daniel Gredler <dgred...@openjdk.org> wrote:

>> On other platforms like Windows and Linux, the `\n`, `\r` and `\t` 
>> characters are ignored when drawing text to a `Graphics2D` object. On macOS 
>> this is not currently the case.
>> 
>> See, for example, `CMap.getControlCodeGlyph(int, boolean)` or 
>> `RasterPrinterJob.removeControlChars(String)`.
>> 
>> This bug was found while running 
>> `test/jdk/java/awt/print/PrinterJob/PrintTextTest.java` on macOS.
>> 
>> The new test class passes on Linux, Windows and macOS.
>
> Daniel Gredler has updated the pull request with a new target base due to a 
> merge or a rebase. The incremental webrev excludes the unrelated changes 
> brought in by the merge/rebase. The pull request contains four additional 
> commits since the last revision:
> 
>  - Merge branch 'master' into ignored-whitespace
>  - Make Graphics2D.drawString ignore tabs and newlines on macOS
>  - Add actual bug ID
>  - Add ignored whitespace test

I don't think
NativeGlyphMapper - used only when we needs the Xserver to render, or
WPathGraphics - a windows printing class

are where I'd expect to find anything that could impact the TestControls test.

But I agree with the general points
- \t \r \n handling can be platform-specific
- macOS printing is very different

The other PR still needs a proper look on my part

I suggest we get this PR pushed but first I'll submit a test job .. unless 
Harshitha already did that ?

-------------

PR Comment: https://git.openjdk.org/jdk/pull/23665#issuecomment-2860620842

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