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!7

cmodule FingerTypeMode > DynFullscreen {
  S text;
  
  visual withMargin(withCenteredButtons(dm_textFieldWithLabel text(),
    "Go fullscreen", rThread goFullscreen));
  
  JComponent fullscreenVisualize() {
    new L<JButton> buttons;
    int nButtons = 12;
    buttons.add(jbutton("Exit", rThread exitFullscreen));
    buttons.add(jbutton("SPACE", rThread { type(" ") }));
    S chars = "abcdefghijklmnopqrstuvwxyz";
    for (S s : stringChunks(chars, ratio_iceil(l(chars), nButtons-l(buttons))))
      buttons.add(jbutton(upper(s)));
    ret northAndCenterWithMargins(
      fontSizePlus(4, dm_centeredTextField text()),
      hvgrid(chunks(4, buttons), 5);
  }
  
  void type(S s) {
    setField(text := unnull(text)+unnull(s));
  }
}