45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
package buf2d
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import (
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"strings"
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"github.com/mattn/go-runewidth"
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)
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// WriteString writes a whole string to the buffer at position (x,y).
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// no word wrap is applied at all. If the string does not fit, it will be truncated.
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// It returns the amount of runes in str
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func WriteString(b *Buffer[rune], str string, x, y int) (width int) {
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dx := x
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for _, r := range str {
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if dx >= b.Width() {
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return
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}
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b.Set(dx, y, r)
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dx += runewidth.RuneWidth(r)
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}
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return dx - x
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}
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// WriteMultiLineString writes a multi-line string to the buffer at position (x,y)
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// no word wrap is applied at all. If a line does not fit horizontally, it will be truncated
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// All lines which do not fit vertically will be truncated as well
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func WriteMultiLineString(b *Buffer[rune], str string, x, y int) {
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lines := strings.Split(str, "\n")
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for dy, line := range lines {
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if dy >= b.height {
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return
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}
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WriteString(b, line, x, y+dy)
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}
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}
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// Fill fills the whole buffer with c
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func (b *Buffer[T]) Fill(value T) {
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for _, col := range b.data {
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for ri := range col {
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col[ri] = value
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}
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}
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}
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