?? autodemo.java
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import javax.swing.*; import javax.swing.border.*; import javax.swing.table.*;import java.awt.*; import java.awt.event.*; import java.util.Iterator;import java.util.List; import CLIPSJNI.*;/* Implement FindFact which returns just a FactAddressValue or null *//* TBD Add size method to PrimitiveValue */class AutoDemo implements ActionListener { JLabel displayLabel; JButton nextButton; JButton prevButton; JPanel choicesPanel; ButtonGroup choicesButtons; Environment clips; AutoDemo() { /*================================*/ /* Create a new JFrame container. */ /*================================*/ JFrame jfrm = new JFrame("Auto Demo"); /*=============================*/ /* Specify FlowLayout manager. */ /*=============================*/ jfrm.getContentPane().setLayout(new GridLayout(3,1)); /*=================================*/ /* Give the frame an initial size. */ /*=================================*/ jfrm.setSize(350,200); /*=============================================================*/ /* Terminate the program when the user closes the application. */ /*=============================================================*/ jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); /*===========================*/ /* Create the display panel. */ /*===========================*/ JPanel displayPanel = new JPanel(); displayLabel = new JLabel("<html><br>"); displayPanel.add(displayLabel); /*===========================*/ /* Create the choices panel. */ /*===========================*/ choicesPanel = new JPanel(); choicesButtons = new ButtonGroup(); /*===========================*/ /* Create the buttons panel. */ /*===========================*/ JPanel buttonPanel = new JPanel(); prevButton = new JButton("Prev"); prevButton.setActionCommand("Prev"); buttonPanel.add(prevButton); prevButton.addActionListener(this); nextButton = new JButton("Next"); nextButton.setActionCommand("Next"); buttonPanel.add(nextButton); nextButton.addActionListener(this); /*=====================================*/ /* Add the panels to the content pane. */ /*=====================================*/ jfrm.getContentPane().add(displayPanel); jfrm.getContentPane().add(choicesPanel); jfrm.getContentPane().add(buttonPanel); /*========================*/ /* Load the auto program. */ /*========================*/ clips = new Environment(); clips.load("autodemo.clp"); clips.reset(); clips.run(); nextUIState(); /*====================*/ /* Display the frame. */ /*====================*/ jfrm.setVisible(true); } /****************/ /* nextUIState: */ /****************/ private void nextUIState() { /*=====================*/ /* Get the state-list. */ /*=====================*/ String evalStr = "(find-all-facts ((?f state-list)) TRUE)"; MultifieldValue pv = (MultifieldValue) clips.eval(evalStr); int tNum = pv.listValue().size(); if (tNum == 0) return; FactAddressValue fv = (FactAddressValue) pv.listValue().get(0); String currentID = fv.getFactSlot("current").toString(); /*===========================*/ /* Get the current UI state. */ /*===========================*/ evalStr = "(find-all-facts ((?f UI-state)) " + "(eq ?f:id " + currentID + "))"; pv = (MultifieldValue) clips.eval(evalStr); tNum = pv.listValue().size(); if (tNum == 0) return; fv = (FactAddressValue) pv.listValue().get(0); /*========================================*/ /* Determine the Next/Prev button states. */ /*========================================*/ if (fv.getFactSlot("state").toString().equals("final")) { nextButton.setActionCommand("Restart"); nextButton.setText("Restart"); prevButton.setVisible(true); } else if (fv.getFactSlot("state").toString().equals("initial")) { nextButton.setActionCommand("Next"); nextButton.setText("Next"); prevButton.setVisible(false); } else { nextButton.setActionCommand("Next"); nextButton.setText("Next"); prevButton.setVisible(true); } /*=====================*/ /* Set up the choices. */ /*=====================*/ choicesPanel.removeAll(); choicesButtons = new ButtonGroup(); pv = (MultifieldValue) fv.getFactSlot("valid-answers"); List theList = pv.listValue(); String selected = fv.getFactSlot("response").toString(); for (Iterator itr = theList.iterator(); itr.hasNext();) { PrimitiveValue bv = (PrimitiveValue) itr.next(); JRadioButton rButton; if (bv.toString().equals(selected)) { rButton = new JRadioButton(bv.toString(),true); } else { rButton = new JRadioButton(bv.toString(),false); } rButton.setActionCommand(bv.toString()); choicesPanel.add(rButton); choicesButtons.add(rButton); } choicesPanel.repaint(); /*====================================*/ /* Set the label to the display text. */ /*====================================*/ String theText = ((StringValue) fv.getFactSlot("display")).stringValue(); displayLabel.setText("<html><br>" + theText); } /*########################*/ /* ActionListener Methods */ /*########################*/ /*******************/ /* actionPerformed */ /*******************/ public void actionPerformed( ActionEvent ae) { /*=====================*/ /* Get the state-list. */ /*=====================*/ String evalStr = "(find-all-facts ((?f state-list)) TRUE)"; MultifieldValue pv = (MultifieldValue) clips.eval(evalStr); int tNum = pv.listValue().size(); if (tNum == 0) return; FactAddressValue fv = (FactAddressValue) pv.listValue().get(0); String currentID = fv.getFactSlot("current").toString(); /*=========================*/ /* Handle the Next button. */ /*=========================*/ if (ae.getActionCommand().equals("Next")) { if (choicesButtons.getButtonCount() == 0) { clips.assertString("(next " + currentID + ")"); } else { clips.assertString("(next " + currentID + " " + choicesButtons.getSelection().getActionCommand() + ")"); } clips.run(); nextUIState(); } else if (ae.getActionCommand().equals("Restart")) { clips.reset(); clips.run(); nextUIState(); } else if (ae.getActionCommand().equals("Prev")) { clips.assertString("(prev " + currentID + ")"); clips.run(); nextUIState(); } } public static void main(String args[]) { // Create the frame on the event dispatching thread. SwingUtilities.invokeLater( new Runnable() { public void run() { new AutoDemo(); } }); } }?? 快捷鍵說明
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