Method cursorBBox

texteditor/cursor.go:76–83

cursorBBox returns a bounding-box for a cursor at given position

(pos lexer.Pos)

// cursorBBox returns a bounding-box for a cursor at given position
func (ed *Editor) cursorBBox(pos lexer.Pos) image.Rectangle {
	cpos := ed.charStartPos(pos)
	cbmin := cpos.SubScalar(ed.CursorWidth.Dots)
	cbmax := cpos.AddScalar(ed.CursorWidth.Dots)
	cbmax.Y += ed.fontHeight
	curBBox := image.Rectangle{cbmin.ToPointFloor(), cbmax.ToPointCeil()}
	return curBBox
}

// renderCursor renders the cursor on or off, as a sprite that is either on or off
func (ed *Editor) renderCursor(on bool) {