TreeViewTab.java

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package instruction.gui.tab;

import instruction.gui.internal.PlanImporterWrapper;
import instruction.syntaxparser.SyntaxTree;

import java.awt.BorderLayout;
import java.awt.ScrollPane;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;


public class TreeViewTab extends JPanel {

        private static final long serialVersionUID = 5838455112176213755L;

        public static String TITLE = "Syntax Tree View";

        ScrollPane scroll = null;
        SyntaxTreePanel treeView = null;
        JPanel buttonPanel = null;
        JButton next = null;
        JButton prev = null;
        JLabel instCount = null;

        public TreeViewTab () {

                initialize();
        }

        public void initialize() {

                setLayout( new BorderLayout() );

                treeView = new SyntaxTreePanel();
                treeView.init();
                
                addComponentListener( new ComponentListener() {

                        public void componentHidden( ComponentEvent e ) {
                        }

                        public void componentMoved( ComponentEvent e ) {
                        }

                        public void componentResized( ComponentEvent e ) {
                        }
                        

                        public void componentShown( ComponentEvent e ) {

                                List<SyntaxTree> trees = PlanImporterWrapper.getImporter().getSyntaxTrees();
                                
                                if (trees == null || trees.isEmpty())
                                        return;
                                
                        
                                treeView.setSyntaxTree( trees );
                                treeView.setActiveTree( 0 );
                                treeView.redraw();
                                instCount.setText( "Parse No. " + (treeView.getActiveTree()+1) + " of " + treeView.getTreeCount() );

                        }

                } );

                scroll = new ScrollPane(  );
                
                scroll.add( treeView );
                
                buttonPanel = new JPanel();
                prev = new JButton("< Prev");
                prev.addActionListener( new ActionListener() {

                        public void actionPerformed( ActionEvent e ) {
                                treeView.setActiveTree( (treeView.getActiveTree() - 1 < 0 ? treeView.getTreeCount() - 1 : treeView.getActiveTree() - 1) % treeView.getTreeCount() );
                                treeView.redraw();
                                instCount.setText( "Parse No. " + (treeView.getActiveTree()+1) + " of " + treeView.getTreeCount());
                        }
                        
                });
                next = new JButton("Next >");
                next.addActionListener( new ActionListener() {

                        public void actionPerformed( ActionEvent e ) {
                                treeView.setActiveTree( (treeView.getActiveTree() + 1) % treeView.getTreeCount());
                                treeView.redraw();
                                instCount.setText( "Parse No. " + (treeView.getActiveTree()+1)  + " of " + treeView.getTreeCount());
                        }
                        
                });
                
                instCount = new JLabel("");
                
                buttonPanel.add( prev );
                buttonPanel.add( instCount );
                buttonPanel.add( next );
                
                add(buttonPanel, BorderLayout.NORTH);
                
                add( scroll, BorderLayout.CENTER );
        }

}