R: Combine bitmap objects

c.bm_bitmap {bittermelon}

R Documentation

Combine bitmap objects

Description

c() combines bitmap objects into bm_list() or bm_font() objects. In particular when using it to combine fonts the later fonts "update" the glyphs in the earlier fonts.

Usage

## S3 method for class 'bm_bitmap'
c(...)

## S3 method for class 'bm_font'
c(...)

## S3 method for class 'bm_list'
c(...)

## S3 method for class 'bm_pixmap'
c(...)

Arguments

...

bm_bitmap(), bm_list(), and/or bm_font() objects to combine.

Details

The various bitmap objects are "reduced" in the following ways:

First	Second	Result
`bm_bitmap()`	`bm_bitmap()`	`bm_list()`
`bm_bitmap()`	`bm_font()`	`bm_font()`
`bm_bitmap()`	`bm_list()`	`bm_list()`
`bm_bitmap()`	`bm_pixmap()`	`bm_list()`
`bm_pixmap()`	`bm_bitmap()`	`bm_list()`
`bm_pixmap()`	`bm_font()`	`ERROR`
`bm_pixmap()`	`bm_list()`	`bm_list()`
`bm_pixmap()`	`bm_pixmap()`	`bm_list()`
`bm_font()`	`bm_bitmap()`	`bm_font()`
`bm_font()`	`bm_font()`	`bm_font()`
`bm_font()`	`bm_list()`	`bm_font()`
`bm_font()`	`bm_pixmap()`	`ERROR`
`bm_list()`	`bm_bitmap()`	`bm_list()`
`bm_list()`	`bm_font()`	`bm_font()`
`bm_list()`	`bm_list()`	`bm_list()`
`bm_list()`	`bm_pixmap()`	`bm_list()`

When combining with a bm_font() object if any bm_bitmap() objects share the same name we only keep the last one. Although names are preserved other attributes such as font comments and properties are not guaranteed to be preserved.

Value

Either a bm_list() or bm_font() object. See Details for more info.

Examples

font_file <- system.file("fonts/spleen/spleen-8x16.hex.gz", package = "bittermelon")
font <- read_hex(font_file)
capital_r <- font[[str2ucp("R")]]
stats <- as_bm_list("STATS", font = font)
is_bm_list(c(capital_r, capital_r))
rstats <- c(capital_r, stats)
print(bm_call(rstats, cbind))

[Package bittermelon version 2.0.2 Index]