public LibraryBundlingEditorComponent(@NotNull Project project) { myProject = project; GuiUtils.replaceJSplitPaneWithIDEASplitter(myMainPanel); ((JBSplitter) myMainPanel.getComponent(0)).setProportion(0.4f); myRulesPanel.add( ToolbarDecorator.createDecorator(myRulesList) .setAddAction( new AnActionButtonRunnable() { @Override public void run(AnActionButton button) { updateCurrentRule(); myRulesModel.add(new LibraryBundlificationRule()); myRulesList.setSelectedIndex(myRulesModel.getSize() - 1); updateFields(); } }) .setRemoveAction( new AnActionButtonRunnable() { @Override public void run(AnActionButton button) { myLastSelected = -1; if (myRulesModel.getSize() == 1) { myRulesModel.setElementAt(new LibraryBundlificationRule(), 0); myRulesList.setSelectedIndex(0); } else { int index = myRulesList.getSelectedIndex(); myRulesModel.remove(index); myRulesList.setSelectedIndex(index > 0 ? index - 1 : 0); } updateFields(); } }) .setMoveUpAction( new AnActionButtonRunnable() { @Override public void run(AnActionButton button) { updateCurrentRule(); myLastSelected = -1; ListUtil.moveSelectedItemsUp(myRulesList); updateFields(); } }) .setMoveDownAction( new AnActionButtonRunnable() { @Override public void run(AnActionButton button) { updateCurrentRule(); myLastSelected = -1; ListUtil.moveSelectedItemsDown(myRulesList); updateFields(); } }) .addExtraAction( new AnActionButton("Copy", PlatformIcons.COPY_ICON) { @Override public void actionPerformed(AnActionEvent e) { updateCurrentRule(); int index = myRulesList.getSelectedIndex(); if (index >= 0) { myRulesModel.add(myRulesModel.getElementAt(index).copy()); myRulesList.setSelectedIndex(myRulesModel.getSize() - 1); updateFields(); } } @Override public boolean isEnabled() { return myRulesList.getSelectedIndex() >= 0; } }) .createPanel(), BorderLayout.CENTER); myRulesModel = new CollectionListModel<>(); //noinspection unchecked myRulesList.setModel(myRulesModel); myRulesList.addListSelectionListener( new ListSelectionListener() { @Override public void valueChanged(ListSelectionEvent e) { updateCurrentRule(); updateFields(); } }); }