// ds MySQL logger
private final void _logMaster(final String p_strInfo) {
// ds get username and session id
final String strUsername = m_cLearner.getUsername();
final int iSessionID = m_cLearner.getSessionID();
// ds if set
if (null != strUsername) {
try {
// ds log
m_cMySQLManager.logMaster(strUsername, iSessionID, p_strInfo);
} catch (SQLException e) {
System.out.println(
"["
+ CLogger.getStamp()
+ "]<CGUI>(_logMaster) SQLException: "
+ e.getMessage()
+ " could not log to MySQL master");
}
} else {
System.out.println(
"["
+ CLogger.getStamp()
+ "]<CGUI>(_logMaster) could not log to master because of empty username");
}
}
// ds KeyListener - just map the keys to the buttons
public void keyPressed(KeyEvent p_cKey) {
// ds get the keycode
final int iKeyCode = p_cKey.getKeyCode();
// ds if/else tree
if (iKeyCode == KeyEvent.VK_RIGHT) {
m_cButtonLike.doClick();
} else if (iKeyCode == KeyEvent.VK_DOWN) {
m_cButtonDislike.doClick();
} else if (iKeyCode == KeyEvent.VK_LEFT) {
m_cButtonPrevious.doClick();
} else if (iKeyCode == KeyEvent.VK_R) {
/*m_cButtonReset.doClick( );*/
} else if (iKeyCode == KeyEvent.VK_ESCAPE) {
// ds notify
System.out.println(
"["
+ CLogger.getStamp()
+ "]<CGUI>(keyPressed) Caught escape signal - shutting down GUI");
// ds escape gui
m_cFrame.removeAll();
m_cFrame.dispose();
}
}
// ds close GUI
public void close() {
// ds get username
final String strUsername = m_cLearner.getUsername();
// ds if username is set
if (null != strUsername) {
// ds log
_logMaster("<CGUI>(close) closed GUI application");
try {
// ds remove user from active list
m_cMySQLManager.removeActiveUser(strUsername);
// ds log
System.out.println(
"["
+ CLogger.getStamp()
+ "]<CGUI>(close) Logout of: ["
+ strUsername
+ "] successful");
} catch (Exception e) {
// ds could not remove
System.out.println(
"["
+ CLogger.getStamp()
+ "]<CGUI>(close) Could not remove user: ["
+ strUsername
+ "] from active users list - please check database");
}
}
// ds only if active
if (isActive()) {
// ds dispose frame completely
m_cFrame.removeAll();
m_cFrame.dispose();
}
// ds info
System.out.println("[" + CLogger.getStamp() + "]<CGUI>(close) Closing of GUI complete");
}
// ds constructor
public CGUI(
final CLearnerBayes p_cLearner,
final CMySQLManager p_cMySQLManager,
final int p_iWindowWidth,
final int p_iWindowHeight) {
// ds set the learner
m_cLearner = p_cLearner;
// ds and MySQL manager
m_cMySQLManager = p_cMySQLManager;
// ds set constants
m_iWindowWidth = p_iWindowWidth;
m_iWindowHeight = p_iWindowHeight;
// ds configure the frame
m_cFrame.setSize(p_iWindowWidth, p_iWindowHeight);
// m_cFrame.setResizable( false );
m_cFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
// ds divide frame in two parts: information and image
m_cFrame.setLayout(new BorderLayout());
// ds creating a border to highlight the JPanel areas
Border cOutline = BorderFactory.createLineBorder(Color.black);
// ds set borders
// m_cPanelNorth.setBorder( cOutline );
// m_cPanelEast.setBorder( cOutline );
// m_cPanelSouth.setBorder( cOutline );
// m_cPanelWest.setBorder( cOutline );
m_cPanelCImage.setBorder(cOutline);
// ds setup components (buttons, ..)
_setComponents();
// ds add the panels to the frame
m_cFrame.add(m_cPanelNorth, BorderLayout.NORTH);
// m_cFrame.add( m_cPanelEast , BorderLayout.EAST );
m_cFrame.add(m_cPanelSouth, BorderLayout.SOUTH);
// m_cFrame.add( m_cPanelWest , BorderLayout.WEST );
m_cFrame.add(m_cPanelCImage, BorderLayout.CENTER);
System.out.println("[" + CLogger.getStamp() + "]<CGUI>(CGUI) Instance allocated");
}
// ds event invoked function
public void actionPerformed(ActionEvent p_cEvent) {
// ds get the event source
final Object cSource = p_cEvent.getSource();
try {
// ds determine event (big if/else tree)
if (cSource == m_cButtonLike) {
_displayImage(
m_cLearner.getNextPattern(CLearnerBayes.ELearnerLabel.LIKE, m_cCurrentPattern));
} else if (cSource == m_cButtonDislike) {
_displayImage(
m_cLearner.getNextPattern(CLearnerBayes.ELearnerLabel.DISLIKE, m_cCurrentPattern));
} else if (cSource == m_cButtonPrevious) {
_displayImage(m_cLearner.getPreviousPattern());
} else if (cSource == m_cButtonReset) {
// ds reset the learning process
m_cLearner.reset();
// ds get a new image
_displayImage(m_cLearner.getFirstDataPoint());
}
} catch (SQLException e) {
_logMaster("<CGUI>(actionPerformed) SQLException: " + e.getMessage());
System.out.println(
"[" + CLogger.getStamp() + "]<CGUI>(actionPerformed) SQLException: " + e.getMessage());
// ds no previous image available
JOptionPane.showMessageDialog(m_cFrame, "Could not load image from MySQL database");
} catch (CZEPnpIException e) {
_logMaster("<CGUI>(actionPerformed) CZEPnpIException: " + e.getMessage());
System.out.println(
"["
+ CLogger.getStamp()
+ "]<CGUI>(actionPerformed) CZEPnpIException: "
+ e.getMessage());
// ds no previous image available
JOptionPane.showMessageDialog(
m_cFrame,
"No previous image available - please use Like/Dislike to classify the first image");
} catch (CZEPMySQLManagerException e) {
_logMaster("<CGUI>(actionPerformed) CZEPMySQLManagerException: " + e.getMessage());
System.out.println(
"["
+ CLogger.getStamp()
+ "]<CGUI>(actionPerformed) CZEPMySQLManagerException: "
+ e.getMessage());
// ds no previous image available
JOptionPane.showMessageDialog(m_cFrame, "Could not load image from MySQL database");
} catch (MalformedURLException e) {
_logMaster("<CGUI>(actionPerformed) MalformedURLException: " + e.getMessage());
System.out.println(
"["
+ CLogger.getStamp()
+ "]<CGUI>(actionPerformed) MalformedURLException: "
+ e.getMessage());
// ds no previous image available
JOptionPane.showMessageDialog(m_cFrame, "Could not load image from MySQL database");
} catch (CZEPEoIException e) {
_logMaster("<CGUI>(actionPerformed) CZEPEoIException: " + e.getMessage());
System.out.println(
"["
+ CLogger.getStamp()
+ "]<CGUI>(actionPerformed) CZEPEoIException: "
+ e.getMessage());
// ds no previous image available
JOptionPane.showMessageDialog(m_cFrame, "Could not load image from MySQL database");
}
}
// ds enable display
public void launch()
throws CZEPGUIException, HeadlessException, SQLException, CZEPMySQLManagerException {
System.out.println(
"[" + CLogger.getStamp() + "]<CGUI>(launch) Loading initial application setup");
// ds allocate a dialog object to display independently
final JDialog cDialogLoading = new JDialog(m_cFrame, "ZEP: Zero-Effort Procrastination", false);
// ds set the option panel without any options
cDialogLoading.setContentPane(
new JOptionPane(
"Loading image data please wait",
JOptionPane.INFORMATION_MESSAGE,
JOptionPane.DEFAULT_OPTION,
null,
new Object[] {},
null));
// ds display the dialog
cDialogLoading.pack();
cDialogLoading.setVisible(true);
cDialogLoading.setLocationRelativeTo(null);
try {
// ds fetch initial datapool
m_cLearner.fetchInitialDataPool();
// ds try to get the image for first display
_displayInitialImage(m_cLearner.getFirstDataPoint());
} catch (Exception e) {
// ds info
System.out.println(
"["
+ CLogger.getStamp()
+ "]<CGUI>(launch) Exception: "
+ e.getMessage()
+ " - could not fetch database");
// ds dispose loading screen
cDialogLoading.removeAll();
cDialogLoading.dispose();
// ds rethrow
throw new CZEPGUIException("GUI aborted");
}
// ds dispose loading screen
cDialogLoading.removeAll();
cDialogLoading.dispose();
// ds register key listener
m_cFrame.addKeyListener(this);
// ds display frame for interaction
m_cFrame.setVisible(true);
m_cFrame.setLocationRelativeTo(null);
// ds request focus for key strokes
m_cFrame.requestFocus();
// ds initialize with empty string
String strUsername = "";
// ds as long as it is not set
while (strUsername.isEmpty()) {
// ds show dialog to enter name
strUsername =
JOptionPane.showInputDialog(
m_cFrame,
"Please enter your desired username: "******"ZEP: Zero-Effort Procrastination",
JOptionPane.PLAIN_MESSAGE);
// ds check if null (cancelled by user)
if (null == strUsername) {
// ds escape
throw new CZEPGUIException("cancelled username setting dialog");
}
// ds check if already taken
if (!strUsername.isEmpty() && !m_cMySQLManager.isUserAvailable(strUsername)) {
// ds inform
JOptionPane.showMessageDialog(m_cFrame, "Username already taken - please try again");
// ds keep looping
strUsername = "";
}
}
// ds username is fine to set
m_cLearner.setUsername(strUsername);
// ds set user active
m_cMySQLManager.setActiveUser(strUsername);
// ds and log
System.out.println(
"[" + CLogger.getStamp() + "]<CGUI>(launch) Login of: [" + strUsername + "] successful");
// ds log successful launch
_logMaster("<CGUI>(launch) launched GUI application");
// ds request focus for key strokes
m_cFrame.requestFocus();
}