textRunCreateEmpty

pub fn textRunCreateEmpty(self: *TextLayoutWidget, controlling_widget: dvui.Id, first_line: bool) void {
    const text_height = self.data().options.fontGet().textHeight();

    const crect = self.data().contentRect();
    const empty_space: Rect = .{ .x = self.insert_pt.x, .y = self.insert_pt.y, .w = 1, .h = @max(0, @min(text_height, crect.h - self.insert_pt.y)) };
    var vp = dvui.overlay(if (first_line) textRunSrc() else @src(), .{ .name = "Text Run", .role = .text_run, .rect = empty_space });
    defer vp.deinit();
    self.textrun_last = .{ .node_id = vp.data().id, .pos = if (self.newline) self.bytes_seen + 1 else self.bytes_seen };
    dvui.currentWindow().accesskit.textRunCreateEmpty(
        vp.data().id,
        controlling_widget,
        self.line,
        self.data().contentRectScale().rectToPhysical(empty_space),
    );
}