Option to allow tabbed pane separator to take full height

[tanmatra]

It may look more "solid", and the latest IDEA is using this style for editor tabs.

It can be done simply enough, just by changing float offset in line 310 of FlatTabbedPaneUI to 0.

I can create pull request for it.

[smileatom]

PR submitted #62

[tanmatra]

There is a typo:

FlatClientProperties.TABBED_PANE_TAB_SEPARATORS_FULL_HEIGHT = "JTabbedPane.tabSeparatorsFullHeight"

but in FlatTabbedPaneUI:

tabSeparatorsFullHeight = UIManager.getBoolean( "TabbedPane.tabSeparatorsFullHeight" );

[DevCharly]

@tanmatra thanks for the idea. smileatom's PR is now merged into master branch.

To try it out add the latest snapshot (https://github.com/JFormDesigner/FlatLaf#snapshots) to your dependencies and add following to your code (after installing FlatLaf):

UIManager.put( "TabbedPane.tabSeparatorsFullHeight", true );

A new release will be available in some days.

[DevCharly]

released in 0.27