How to use

setFoldBackground

method

in

org.fife.ui.rtextarea.Gutter

@Test
public void testGetFoldBackground() {
  RTextArea textArea = new RTextArea(PLAIN_TEXT);
  Gutter gutter = new Gutter(textArea);
  Color color = Color.red;
  gutter.setFoldBackground(color);
  Assert.assertEquals(color, gutter.getFoldBackground());
  color = Color.green;
  gutter.setFoldBackground(color);
  Assert.assertEquals(color, gutter.getFoldBackground());
}

@Test
public void testSetFoldBackground() {
  RTextArea textArea = new RTextArea(PLAIN_TEXT);
  Gutter gutter = new Gutter(textArea);
  Color color = Color.red;
  gutter.setFoldBackground(color);
  Assert.assertEquals(color, gutter.getFoldBackground());
  color = Color.green;
  gutter.setFoldBackground(color);
  Assert.assertEquals(color, gutter.getFoldBackground());
  // Sets to default - not a public value, but also not Color.green.
  gutter.setFoldBackground(null);
  Assert.assertNotNull(gutter.getFoldBackground());
  Assert.assertNotEquals(color, gutter.getFoldBackground());
}

gutter.setLineNumberFont(font);
gutter.setFoldIndicatorForeground(foldIndicatorFG);
gutter.setFoldBackground(foldBG);
gutter.setArmedFoldBackground(armedFoldBG);

gutter.setLineNumberColor(          new Color(Integer.parseInt(temaEditor.getString("numeros_das_linhas"), 16)));
gutter.setFoldIndicatorForeground(  new Color(Integer.parseInt(temaEditor.getString("dobrador_de_codigo"), 16)));
gutter.setFoldBackground(           new Color(Integer.parseInt(temaEditor.getString("background_editor"), 16)));

gutter.setLineNumberFont(font);
gutter.setFoldIndicatorForeground(Color.orange);
gutter.setFoldBackground(Color.orange);
gutter.setArmedFoldBackground(Color.orange);

gutter.setLineNumberFont(font);
gutter.setFoldIndicatorForeground(foldIndicatorFG);
gutter.setFoldBackground(foldBG);
gutter.setArmedFoldBackground(armedFoldBG);