Trying to print text which is ignored (e.g. `\r` or `\n` or `\t`), or trying to print empty shapes generates PostScript graphics context setup commands which are not necessary. This can lead to unnecessarily large PostScript files, and can complicate analysis / comparison of these files.
Two methods are impacted: `PSPrinterJob.textOut(...)`: The `prepDrawing()` method should only be called once all sanity checks have passed. Otherwise, it will add PS graphics context setup commands that may not be necessary. `PSPrinterJob.deviceFill(...)`: This method should do nothing if the provided `PathIterator` is empty. Otherwise, it will add PS graphics context setup commands that are not necessary. The changes in `PSPrinterJob.textOut(...)` eliminated a big `if` statement, therefore include some indentation changes. Checking the diff with whitespace ignored should be helpful here. A test case is included. ------------- Commit messages: - Avoid generation of unnecessary PS commands during printing Changes: https://git.openjdk.org/jdk/pull/23595/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23595&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8349932 Stats: 312 lines in 2 files changed: 207 ins; 69 del; 36 mod Patch: https://git.openjdk.org/jdk/pull/23595.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/23595/head:pull/23595 PR: https://git.openjdk.org/jdk/pull/23595
