# This function is called by `theme_grattan` but is not exported.
theme_grattan_base <- function(base_size = 18,
base_family = "sans",
base_line_size = points_to_mm(0.75),
base_rect_size = points_to_mm(1),
background = "white",
legend = "none",
panel_borders = FALSE) {
half_line <- base_size / 2
ret <-
theme(
line = element_line(
colour = grattantheme::grattan_gridlinegrey,
linewidth = base_line_size,
linetype = 1,
lineend = "butt"
),
rect = element_rect(
fill = background,
colour = grattantheme::grattan_gridlinegrey,
linewidth = base_rect_size,
linetype = 0
),
text = element_text(
colour = "black",
family = base_family,
face = "plain",
hjust = 0.5,
vjust = 0.5,
angle = 0,
lineheight = 0.9,
debug = FALSE,
margin = margin(),
size = base_size
),
axis.line = element_line(
linewidth = points_to_mm(1),
colour = "black"
),
axis.line.x = NULL,
axis.line.y = NULL,
axis.text = element_text(size = rel(1)),
axis.text.x = element_text(margin = margin(t = base_size / 5,
unit = "pt"),
vjust = 1),
axis.text.x.top = element_text(margin = margin(b = base_size / 5),
vjust = 0),
axis.text.y = element_text(margin = margin(r = base_size / 5),
hjust = 1),
axis.text.y.right = element_text(margin = margin(l = base_size / 5),
hjust = 0),
axis.ticks = element_line(colour = "black"),
axis.ticks.length = unit(half_line / 2, "pt"),
axis.ticks.length.x = NULL,
axis.ticks.length.x.top = NULL,
axis.ticks.length.x.bottom = NULL,
axis.ticks.length.y = NULL,
axis.ticks.length.y.left = NULL,
axis.ticks.length.y.right = NULL,
axis.title = element_text(size = rel(1)),
axis.title.x = element_text(margin = margin(t = half_line / 2),
vjust = 1),
axis.title.x.top = element_text(margin = margin(b = half_line / 2),
vjust = 0),
axis.title.y = element_text(
angle = 90,
margin = margin(r = half_line /
2),
vjust = 1
),
axis.title.y.right = element_text(
angle = -90,
margin = margin(l = half_line /
2),
vjust = 0
),
legend.background = element_rect(colour = NA),
legend.spacing = unit(half_line, "pt"),
legend.spacing.x = NULL,
legend.spacing.y = NULL,
legend.margin = margin(),
legend.key = element_rect(fill = "white",
colour = "white"),
legend.key.size = unit(1, "lines"),
legend.key.height = NULL,
legend.key.width = NULL,
legend.text = element_text(size = rel(1),
margin = margin(l = 0,
r = base_size / 4, unit = "pt")),
legend.text.align = 0,
legend.title = element_blank(),
legend.title.align = NULL,
legend.position = legend,
legend.direction = "horizontal",
legend.justification = "center",
legend.box = "vertical",
legend.box.margin = margin(0, 0,
0, 0, "cm"),
legend.box.background = element_blank(),
legend.box.spacing = unit(half_line, "pt"),
panel.background = element_rect(colour = NA),
panel.border = element_blank(),
panel.grid = element_line(colour = grattantheme::grattan_gridlinegrey,
linewidth = points_to_mm(0.5)),
panel.grid.minor = element_blank(),
panel.spacing = unit(1,
"lines"),
panel.spacing.x = NULL,
panel.spacing.y = NULL,
panel.ontop = FALSE,
strip.background = element_rect(),
strip.text = element_text(
size = rel(1),
margin = margin(0.8 * half_line,
0.8 * half_line, 0.8 * half_line, 0.8 * half_line)
),
strip.text.x = NULL,
strip.text.y = element_text(angle = -90),
strip.placement = "inside",
strip.placement.x = NULL,
strip.placement.y = NULL,
strip.switch.pad.grid = unit(half_line / 2,
"pt"),
strip.switch.pad.wrap = unit(half_line / 2,
"pt"),
plot.background = element_rect(),
plot.title.position = "plot",
plot.caption.position = "plot",
plot.title = element_text(
size = rel(1),
hjust = 0,
vjust = 1,
colour = grattantheme::grattan_grey_title,
face = "bold",
margin = margin(b = half_line)
),
plot.subtitle = element_text(
colour = grattantheme::grattan_grey_title,
hjust = 0,
vjust = 1,
margin = margin(t = 0,
r = 0,
b = base_size * .75,
l = 0,
unit = "pt")
),
plot.caption = element_text(
family = base_family,
size = rel(0.555),
hjust = 0,
vjust = 1,
colour = "black",
face = "italic",
margin = ggplot2::margin(t = 15)
),
plot.tag = element_text(
size = rel(1.2),
hjust = 0.5,
vjust = 0.5
),
plot.tag.position = "topleft",
plot.margin = unit(c(0.5, 0.6, 0.1, 0.01), "lines"),
complete = TRUE
)
# add panel borders if the user requests them
if (panel_borders) {
ret <- ret %+replace%
theme(panel.border = element_rect(
linetype = 1,
linewidth = points_to_mm(2),
colour = "black",
fill = NA
))
}
if (background == "orange" | background == "box") {
ret <- ret +
ggplot2::theme(rect = element_rect(
fill = grattantheme::grattan_orange_alpha))
}
ret
}
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