Simplify legend layout logic #5648
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Merge branch 'rc/3.5.0' into isolate_legend_title_logic # Conflicts: # R/guide-custom.R
thomasp85
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Jan 19, 2024
thomasp85
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Jan 22, 2024
thomasp85
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Feb 23, 2024
* extract title logic in `legend_add_title()` * `guide_custom()` uses title logic * simplify legend layout * borrow legend's setup_elements method * make `add_title` a ggproto method * fix messy merge conflict * document `add_title` method * `unique()` --> `unique0()`
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This PR to the RC aims to make a simplification to
guide_legend().Briefly, this PR adds a
legend_add_title()helper that is used inguide_legend()andguide_custom(). This has two advantages:guide_legend(), as we no longer have to do bookkeeping and adjustments to the key/label positions based on the title.I figured if there was ever a time to simplify the legend layout logic, without having to deal with backward compatibility issues, now is that time.