package net.sourceforge.ganttproject.gui;import javax.swing.JComponent;import javax.swing.UIManager;import net.sourceforge.ganttproject.gui.options.OptionsPageBuilder;import net.sourceforge.ganttproject.gui.options.model.GPOptionGroup;import com.l2fprod.common.swing.JTaskPane;import com.l2fprod.common.swing.JTaskPaneGroup;import com.l2fprod.common.swing.plaf.LookAndFeelAddons;public class HierarchicalPropertySheetBuilderImpl implements IPropertySheetBuilder {    public HierarchicalPropertySheetBuilderImpl() {    }        public JComponent buildPlanePage(GPOptionGroup[] optionGroups) {        JTaskPane taskPane = new JTaskPane();        try {            LookAndFeelAddons.setAddon(LookAndFeelAddons.getBestMatchAddonClassName());        } catch (InstantiationException e) {            e.printStackTrace();        } catch (IllegalAccessException e) {            e.printStackTrace();        } catch (ClassNotFoundException e) {            e.printStackTrace();        }        taskPane.setBackground(UIManager.getColor("Label.background"));        OptionsPageBuilder builder = new OptionsPageBuilder();        for (GPOptionGroup nextGroup : optionGroups) {            nextGroup.setTitled(false);            JComponent nextComponent = builder.createGroupComponent(nextGroup);            JTaskPaneGroup nextTaskPane = new JTaskPaneGroup();            nextTaskPane.add(nextComponent);            nextTaskPane.setText(builder.getI18N().getOptionGroupLabel(nextGroup));            taskPane.add(nextTaskPane);        }        return taskPane;    }}