Using margin to adjust legend.text?

[Henrik-P]

In issue #1435 on adjusting element_text, we find that "vjust and hjust no longer work. Instead, use the margin() parameter of element_text()". Does this apply also for legend.text?

I have a plot in which I want to adjust the legend.text horizontally.

df <- data.frame(x = c("a", "b"), y = 1)

p <- ggplot(df, aes(x = x, y = y, fill = x)) +
   geom_bar(stat = "identity") +
   ggtitle("My plot")
p

I followed the suggestion in #1435: "if you're having problems understanding the layout, try debug = TRUE":

p + theme(text = element_text(debug = TRUE))

I am not entirely sure I interpret the "debugging plot" correctly, but I thought it indicated all text elements which could be adjusted. Here, areas corresponding to axis.text, axis.title, and plot.title, are highlighted, but seemingly not those for legend.text (nor for legend.title).

I have tried to "push" and "pull" the legend.text horizontally using

p + theme(legend.text = element_text(margin = margin(l =  , r =  )))

...with various combinations of l and r, to no avail.

Thus my question: is legend.text (and legend.title) not included among the element_text elements which can be adjusted using margin? Which is the current ''official' way to adjust these elements?

[hadley]

Hmmm, this looks like an oversight - I seem to be doing something special for legends so they follow the usual process to get a titleGrob()

[hadley]

Re-opening - because of the way the way themes, legends, and margins interact, this is going to require considerably more thought.

[hadley]

Deleting the comments unrelated to the body of the problem.

[hadley]

library(ggplot2)
df <- data.frame(x = c("a", "bbbbbbbbbbbbb"))

ggplot(df, aes(x = x, fill = x)) +
  geom_bar() +
  theme(legend.text = element_text(margin = margin(l = 50)))

[hadley]

The basic problem is that I have no idea how the legend code works any more, and it's extremely complex due to the many possible places that theme settings can come from.

[karawoo]

I looked into this a bit at the end of the summer but never figured out the legend code enough to tackle it 😞 . I think the approach would need to be similar to what we did for strip labels, but I remember it being still more complicated for legends.

[clauswilke]

I think I've got this working now (see: #2556), except for a minor problem with the default hjust setting.

library(ggplot2)
df <- data.frame(x = c("a", "bbbbbbbbbbbbb"))

ggplot(df, aes(x = x, fill = x)) +
  geom_bar() +
  theme(legend.text = element_text(margin = margin(l = 50), hjust = 0))

[lock]

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