/**
* Hide the left part of the main split pane if both it's components are visible. If either of
* them are visible, show it.
*/
private void layoutSplitPane() {
boolean visible = channelListPanel.isVisible() || metadataPanel.isVisible();
if (leftPanel.isVisible() != visible) {
leftPanel.setVisible(visible);
splitPane.resetToPreferredSizes();
}
}
