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| 1 | + |
| 2 | +property_boolean <- function(allow_null = FALSE, default = TRUE) { |
| 3 | + class <- S7::class_logical |
| 4 | + class <- if (allow_null) S7::new_union(class, NULL) else class |
| 5 | + validator <- function(value) { |
| 6 | + if ((allow_null && is.null(value)) || is_bool(value)) { |
| 7 | + return(character()) |
| 8 | + } |
| 9 | + "must be a boolean" |
| 10 | + } |
| 11 | + S7::new_property( |
| 12 | + class = class, |
| 13 | + validator = validator, |
| 14 | + default = default |
| 15 | + ) |
| 16 | +} |
| 17 | + |
| 18 | +property_choice <- function(options, allow_null = FALSE, default = NULL) { |
| 19 | + force(options) |
| 20 | + class <- S7::class_character |
| 21 | + class <- if (allow_null) S7::new_union(class, NULL) else class |
| 22 | + validator <- function(value) { |
| 23 | + if (allow_null && is.null(value)) { |
| 24 | + return(character()) |
| 25 | + } |
| 26 | + if (!is_string(value)) { |
| 27 | + return(as_cli("must be a string, not {.obj_type_friendly {value}}")) |
| 28 | + } |
| 29 | + if (value %in% options) { |
| 30 | + return(character()) |
| 31 | + } |
| 32 | + as_cli("must be one of {.or {.val {options}}}") |
| 33 | + } |
| 34 | + S7::new_property( |
| 35 | + class = class, |
| 36 | + validator = validator, |
| 37 | + default = default |
| 38 | + ) |
| 39 | +} |
| 40 | + |
| 41 | +element_props <- list( |
| 42 | + fill = S7::new_property( |
| 43 | + S7::new_union(S7::class_character, S7::new_S3_class("GridPattern"), S7::class_logical, NULL), |
| 44 | + default = NULL |
| 45 | + ), |
| 46 | + colour = S7::new_property( |
| 47 | + S7::new_union(S7::class_character, S7::class_logical, NULL), |
| 48 | + default = NULL |
| 49 | + ), |
| 50 | + family = S7::new_property( |
| 51 | + S7::new_union(S7::class_character, NULL), |
| 52 | + default = NULL |
| 53 | + ), |
| 54 | + hjust = S7::new_property( |
| 55 | + S7::new_union(S7::class_numeric, NULL), |
| 56 | + default = NULL |
| 57 | + ), |
| 58 | + vjust = S7::new_property( |
| 59 | + S7::new_union(S7::class_numeric, NULL), |
| 60 | + default = NULL |
| 61 | + ), |
| 62 | + angle = S7::new_property( |
| 63 | + S7::new_union(S7::class_numeric, NULL), |
| 64 | + default = NULL |
| 65 | + ), |
| 66 | + size = S7::new_property( |
| 67 | + S7::new_union(S7::class_numeric, NULL), |
| 68 | + default = NULL |
| 69 | + ), |
| 70 | + lineheight = S7::new_property( |
| 71 | + S7::new_union(S7::class_numeric, NULL), |
| 72 | + default = NULL |
| 73 | + ), |
| 74 | + margin = S7::new_property( |
| 75 | + S7::new_union(S7::new_S3_class("margin"), NULL), |
| 76 | + default = NULL |
| 77 | + ), |
| 78 | + face = property_choice(c("plain", "bold", "italic", "oblique", "bold.italic"), allow_null = TRUE), |
| 79 | + linewidth = S7::new_property( |
| 80 | + S7::new_union(S7::class_numeric, NULL), |
| 81 | + default = NULL |
| 82 | + ), |
| 83 | + linetype = S7::new_property( |
| 84 | + S7::new_union(S7::class_numeric, S7::class_character, NULL), |
| 85 | + default = NULL |
| 86 | + ), |
| 87 | + lineend = property_choice(c("round", "butt", "square"), allow_null = TRUE), |
| 88 | + shape = S7::new_property( |
| 89 | + S7::new_union(S7::class_numeric, S7::class_character, NULL), |
| 90 | + default = NULL |
| 91 | + ), |
| 92 | + arrow = S7::new_property( |
| 93 | + S7::new_union(S7::new_S3_class("arrow"), S7::class_logical, NULL), |
| 94 | + default = NULL |
| 95 | + ), |
| 96 | + arrow.fill = S7::new_property( |
| 97 | + S7::new_union(S7::class_character, S7::class_logical, NULL), |
| 98 | + default = NULL |
| 99 | + ), |
| 100 | + debug = property_boolean(allow_null = TRUE, default = NULL), |
| 101 | + inherit.blank = property_boolean(default = FALSE) |
| 102 | +) |
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