/** This method is called when the selection of one of the two combo boxes is changed. */ public void actionPerformed(ActionEvent ev) { sequenceField.hidePopup(); separationField.hidePopup(); try { if (ev.getSource() == sequenceField) { Animation listValue = sequenceField.getValue(); Animation tileValue = tilePattern.getAnimation(); if (listValue != tileValue) { // the tile pattern's animation sequence has changed tilePattern.setAnimation(listValue); } } else { AnimationSeparation listValue = separationField.getValue(); AnimationSeparation tileValue = tilePattern.getAnimationSeparation(); if (listValue != tileValue) { // the direction of the animation separation has changed tilePattern.setAnimationSeparation(listValue); } } } catch (TilesetException ex) { JOptionPane.showMessageDialog(null, ex.getMessage(), "Error", JOptionPane.ERROR_MESSAGE); update(tilePattern); } }