On Tue, 27 Jul 2021 05:45:50 GMT, Marius Hanl <mh...@openjdk.org> wrote:
>> This PR fixes a long standing issue with the TreeTableView indentation. >> >>  >> >> In short: >> **TreeTableCellSkin** overrides **leftLabelPadding()** to calculate the >> indentation (the result of this method is added to **x**). >> While this is fine, this method is not always called (by >> **LabeledSkinBase#layoutLabelInArea**), e.g. when no text is set. >> So when a TreeTableCell only sets a graphic (e.g. via **setGraphic()** in >> **updateItem()**), the indentation will be messed up. >> >> Fixed this by adding the calculated indentation to **x** before we call >> **layoutChildren()**. >> >> We also need/should adjust every other location where `leftLabelPadding()` >> was used: >> - **computePrefHeight** -> prefWidth() is always called with -1, so nothing >> got broken by not overriding this, but we should do it of course to be >> accurate in case we do one day. >> - **computePrefWidth** -> this is needed for auto sizing. I saw that it was >> slightly off without, so this 100% needed. >> - **computeMinWidth** -> the min width of a cell is not used, so nothing got >> broken by not overriding this but same as in computePrefHeight(), we should >> comply with the specs. >> - **layoutChildren** -> I saw a slight off sizing if the indentation is not >> subtracted to the width. >> >> As a result of this, all method do effectively the same as they did with an >> overridden `leftLabelPadding()` (just earlier/later and always now of >> course). >> Note: I also added some tests which pass before and pass after. > > Marius Hanl has updated the pull request with a new target base due to a > merge or a rebase. The pull request now contains three commits: > > - Merge branch 'master' of https://github.com/openjdk/jfx into > 8231644-indentation > > Conflicts: > > modules/javafx.controls/src/main/java/javafx/scene/control/skin/TreeTableCellSkin.java > - calculated indentation in every method now which was previously done via > leftLabelPadding > - 8231644: fixed wrong indentation for tree cells with graphic only Both the fix and test look good. ------------- Marked as reviewed by kcr (Lead). PR: https://git.openjdk.java.net/jfx/pull/568
