| Hi all, I was hoping someone who has an understanding of text layout might be able to help me. I have written a unit test for ImplLayoutRuns, but I would like to confirm my approach and understanding is correct. The patch on gerrit can be found here: In testImplLayoutRuns_AddPos() I add 7 positions. I assume these are glyph positions. What I think I’m doing is to setup a run of 3 non-RTL glyphs, then add a fourth RTL marker glyph, which makes a run of three characters with the RTL maker. I then create a non-RTL glyph position. etc. The code being: ImplLayoutRuns aRuns; aRuns.AddPos(1, false); aRuns.AddPos(2, false); aRuns.AddPos(3, false); aRuns.AddPos(4, true); // add RTL marker glyph aRuns.AddPos(5, false); aRuns.AddPos(6, true); // add RTL marker glyph aRuns.AddPos(7, false); I believe this creates a run of four LTR glyphs, then a run of 2 RTL glyphs, then a run of two LTR glyphs, and final run of 2 RTL glyphs. Can I clarify this is correct? And does each run explicitly include the RTL marker as the first glyph position? The test seems to show this. Chris |
Testing ImplLayoutRuns and ImplLayoutArgs
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- Subject: Testing ImplLayoutRuns and ImplLayoutArgs
- From: Chris Sherlock <chris.sherlock79@xxxxxxxxx>
- Date: Thu, 2 Sep 2021 07:09:35 +1000
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