addmodelspanel.java

代码是一个分类器的实现,其中使用了部分weka的源代码。可以将项目导入eclipse运行

	"Remove all invalid (red) models from the above list");
    m_RemoveInvalidButton.addActionListener(this);
    gbc.weightx = 0;
    gbc.fill = GridBagConstraints.NONE;
    gbc.gridx = 2;
    gbc.gridy = 1;
    gbc.anchor = GridBagConstraints.WEST;
    gbc.gridwidth = 1;
    //OK, this button was removed because we thought it was a waste
    //of space.  Instead of removing invalid models, we just explicitly
    //prevent the user from adding them to the main list.  I'm going to
    //leave the code in with this final "add" statement commented out
    //because we are still on the fence as to whether this is a good 
    //idea
    //add(m_RemoveInvalidButton, gbc);
    
    m_ModelList = new ModelList();
    
    m_ModelList.getInputMap().put(
	KeyStroke.getKeyStroke("released DELETE"), "deleteSelected");
    m_ModelList.getActionMap().put("deleteSelected",
	new AbstractAction("deleteSelected") {
      public void actionPerformed(ActionEvent evt) {
	
	Object[] currentModels = m_ModelList.getSelectedValues();
	
	ModelList.SortedListModel dataModel = ((ModelList.SortedListModel) m_ModelList.getModel());
	
	for (int i = 0; i < currentModels.length; i++) {
	  dataModel.removeElement((EnsembleLibraryModel) currentModels[i]);
	}
	
	//Shrink the selected range to the first index that was selected
	int selected[] = new int[1];
	selected[0] = m_ModelList.getSelectedIndices()[0];
	m_ModelList.setSelectedIndices(selected);
	
      }
    });
    
    m_ModelList
    .setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
    m_ModelList.setLayoutOrientation(JList.VERTICAL);
    m_ModelList.setVisibleRowCount(-1);
    
    JPanel modelListPanel = new JPanel();
    modelListPanel.setBorder(
	BorderFactory.createTitledBorder("Working Set of Newly Generated Models"));
    
    JScrollPane listView = new JScrollPane(m_ModelList);
    //listView.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
    listView.setPreferredSize(new Dimension(150, 50));
    
    modelListPanel.setLayout(new BorderLayout());
    modelListPanel.add(listView, BorderLayout.CENTER);
    
    gbc.weightx = 1;
    gbc.weighty = 1;
    gbc.fill = GridBagConstraints.BOTH;
    gbc.gridx = 0;
    gbc.gridy = 2;
    gbc.gridwidth = 3;
    gbc.anchor = GridBagConstraints.WEST;
    add(modelListPanel, gbc);
    
    m_RemoveSelectedButton = new JButton("Remove Selected");
    m_RemoveSelectedButton.setToolTipText("Remove all currently selected models from the above list");
    m_RemoveSelectedButton.addActionListener(this);
    gbc.weightx = 1;
    gbc.weighty = 0;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.gridx = 0;
    gbc.gridy = 3;
    gbc.anchor = GridBagConstraints.WEST;
    gbc.gridwidth = 1;
    add(m_RemoveSelectedButton, gbc);
    
    m_AddSelectedButton = new JButton("Add Selected");
    m_AddSelectedButton.setToolTipText(
	"Add selected models in the above list to the model library");
    m_AddSelectedButton.addActionListener(this);
    gbc.weightx = 1;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.gridx = 1;
    gbc.gridy = 3;
    gbc.anchor = GridBagConstraints.WEST;
    gbc.gridwidth = 1;
    add(m_AddSelectedButton, gbc);
    
    m_AddAllButton = new JButton("Add All");
    m_AddAllButton.setToolTipText(
	"Add all models in the above list to the model library");
    m_AddAllButton.addActionListener(this);
    gbc.weightx = 1;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.gridx = 2;
    gbc.gridy = 3;
    gbc.anchor = GridBagConstraints.WEST;
    gbc.gridwidth = 1;
    add(m_AddAllButton, gbc);
  }
  
  /**
   * This method necessarily seperates the process of building the
   * tree object from the rest of the GUI construction.  In order to
   * prevent all kinds of strange garbage collection problems, we take
   * the conservative approach of gutting and rebuilding the JTree 
   * every time a new classifier is chosen for the root node.
   * 
   * @param classifier	the classifier to build the tree for
   */
  public void buildClassifierTree(Classifier classifier) {
    
    //This block sets up the root node of the tree.  Note that 
    //the constructor for the GenericObjectNode will take care
    //of creating all of the child nodes containing the node
    //properties
    GenericObjectEditor classifierEditor = new GenericObjectEditor();
    classifierEditor.setClassType(Classifier.class);
    classifierEditor.setValue(classifier);
    
    GenericObjectNode rootNode = new GenericObjectNode(this, classifier,
	classifierEditor, "Current Classifier");
    
    m_TreeModel = new DefaultTreeModel(rootNode);
    m_Tree = new JTree(m_TreeModel);
    rootNode.setTree(m_Tree);
    rootNode.updateTree();
    
    m_Tree.setRootVisible(true);
    
    ModelTreeNodeRenderer renderer = new ModelTreeNodeRenderer();
    m_Tree.setCellRenderer(renderer);
    m_Tree.setCellEditor(new ModelTreeNodeEditor(m_Tree));
    m_Tree.setEditable(true);
    m_Tree.setVisibleRowCount(8);
    //ToolTipManager.sharedInstance().registerComponent(m_Tree);
    
    //This "tentatively seems to work better:
    m_Tree.setRowHeight(0);
    
    m_TreeView.setViewportView(m_Tree);
  }
  
  /**
   * This will support the button triggered events for this panel.
   * 
   * @param e	the event
   */
  public void actionPerformed(ActionEvent e) {
    
    ModelList.SortedListModel dataModel = ((ModelList.SortedListModel) m_ModelList.getModel());
    
    if (e.getSource() == m_GenerateButton) {
      
      //here we want to generate all permutations of the 
      //options specified and then add each of them to the 
      //model list panel
      
      Vector models = ((GenericObjectNode) m_TreeModel.getRoot()).getValues();
      
      int total = models.size();
      int invalid = 0;
      
      for (int i = 0; i < models.size(); i++) {
	Classifier classifier = (Classifier) models.get(i);
	
	//This method will invoke the classifier's setOptions
	//method to see if the current set of options was 
	//valid.  
	
	EnsembleLibraryModel model = m_ListModelsPanel.getLibrary().createModel(classifier);
	
	model.testOptions();
	
	if (!model.getOptionsWereValid())
	  invalid++;
	
	dataModel.add(model);
      }
      
      //update the message text with model generation info
      String generateString = new String("  " + total
	  + " models generated");
      generateString += ", " + invalid + " had errors";
      m_GenerateLabel.setText(generateString);
      
    } else if (e.getSource() == m_RemoveSelectedButton) {
      
      //here we simply get the list of models that are 
      //currently selected and ten remove them from the list
      
      Object[] currentModels = m_ModelList.getSelectedValues();
      
      for (int i = 0; i < currentModels.length; i++) {
	dataModel.removeElement(currentModels[i]);
      }
      
      //Shrink the selected range to the first index that was selected
      if (m_ModelList.getSelectedIndices().length > 0) {
	int selected[] = new int[1];
	selected[0] = m_ModelList.getSelectedIndices()[0];
	m_ModelList.setSelectedIndices(selected);
      }
      
    } else if (e.getSource() == m_RemoveInvalidButton) {
      
      //here we simply remove all the models that were not
      //valid
      
      Vector toRemove = new Vector();
      
      for (int i = 0; i < dataModel.getSize(); i++) {
	
	EnsembleLibraryModel currentModel = (EnsembleLibraryModel) dataModel.getElementAt(i);
	if (!currentModel.getOptionsWereValid()) {
	  toRemove.add(currentModel);
	}
      }
      
      for (int i = 0; i < toRemove.size(); i++)
	dataModel.removeElement(toRemove.get(i));
      
    } else if (e.getSource() == m_AddAllButton) {
      
      //here we just need to add all of the models to the 
      //ListModelsPanel object
      
      Iterator it = dataModel.iterator();
      
      while (it.hasNext()) {
	EnsembleLibraryModel currentModel = (EnsembleLibraryModel) it.next();
	if (currentModel.getOptionsWereValid()) {
	  m_ListModelsPanel.addModel(currentModel);
	}
      }
      
      int size = dataModel.getSize();
      
      for (int i = 0; i < size; i++) {
	dataModel.removeElement(dataModel.getElementAt(0));
      }
    }
  }
}