www.pudn.com > java_chat.rar > EditableUserPanel.java
package at.ac.uni_linz.tk.vchat;
import java.awt.*;
import java.awt.event.*;
/**
* A UserPanel is used for displaying and editing User-data, including color
* settings, password changement, Images and keywords for different moods.
*
* @author Arno Huetter
* (C)opyright by the Institute for Computer Science, Telecooperation Department, University of Linz
*/
public class EditableUserPanel extends UserPanel implements ActionListener, AdjustmentListener, ItemListener, FocusListener, MouseListener {
private InsetsPanel buttonPanel, avatarButtonPanel;
private Button applyButton, addAvatarButton, removeAvatarButton;
/**
* Constructs the UserPanel.
*
* @param chatParam the ChatApplet which administrates the
* Users
* @param repositoryParam the ChatRepository, where commonly used objects
* are being stored
*/
public EditableUserPanel(ChatApplet chatParam) {
super(chatParam);
GridBagConstraints constraints;
applyButton = new Button("Apply");
buttonPanel = new InsetsPanel(ChatRepository.INSETS);
buttonPanel.setLayout(new GridBagLayout());
constraints = new GridBagConstraints();
constraints.anchor = GridBagConstraints.EAST;
constraints.weightx = 1.0;
ChatUtil.addWithConstraints(buttonPanel, applyButton, constraints);
add(buttonPanel, "South");
avatarButtonPanel = new InsetsPanel(ChatRepository.INSETS);
avatarButtonPanel.setLayout(new GridBagLayout());
ChatUtil.addWithRemainingConstraints(avatarButtonPanel, addAvatarButton = new Button("Add avatar"));
ChatUtil.addWithRemainingConstraints(avatarButtonPanel, removeAvatarButton = new Button("Remove avatar"));
avatarPanelLevel1.add(avatarButtonPanel, "East");
applyButton.addActionListener(this);
addAvatarButton.addActionListener(this);
removeAvatarButton.addActionListener(this);
redBar.addAdjustmentListener(this);
greenBar.addAdjustmentListener(this);
blueBar.addAdjustmentListener(this);
((FocusPanel)singleAvatarPanel.elementAt(getNrOfAvatarPanels() - 1)).requestFocus();
}
/**
* Invoked when an action occurs.
*
* @param event the ActionEvent
*/
public void actionPerformed(ActionEvent event) {
if (event.getSource() == applyButton) {
updateUser(chatApplet.getCurrentUser());
}
else if (event.getSource() == addAvatarButton) {
addAvatarPanel();
}
else if (event.getSource() == removeAvatarButton && focusedAvatarIndex() != -1) {
removeAvatarPanel(focusedAvatarIndex());
}
}
/**
* Invoked when the value of the adjustable has changed.
*
* @param event the AdjustmentEvent
*/
public void adjustmentValueChanged(AdjustmentEvent event) {
if (event.getSource() == redBar || event.getSource() == greenBar || event.getSource() == blueBar) {
currentPortraitCanvas.setFrameColor(new Color(redBar.getValue(), greenBar.getValue(), blueBar.getValue()));
}
}
/**
* Invoked when an item's state has been changed.
*
* @param event the ItemEvent
*/
public void itemStateChanged(ItemEvent event) {
for (int i = 0; i < getNrOfAvatarPanels(); i++) {
if (event.getItemSelectable() == serverAvatarCheck.elementAt(i) || event.getItemSelectable() == webAvatarCheck.elementAt(i)) {
((Choice)serverAvatarChoice.elementAt(i)).setEnabled(!((Checkbox)webAvatarCheck.elementAt(i)).getState());
((TextField)avatarURLField.elementAt(i)).setEditable(((Checkbox)webAvatarCheck.elementAt(i)).getState());
}
}
}
/**
* Updates a User's data.
*
* @param userParam the User's new data
*/
public void updateUser(User userParam) {
User user;
boolean connected;
connected = chatApplet.getClient() != null && chatApplet.getClient().connected();
user = (User)(userParam.clone());
user.setEmail(emailField.getText());
user.setHomepage(homepageField.getText());
user.setInfo(infoArea.getText());
user.setColor(new Color(redBar.getValue(), greenBar.getValue(), blueBar.getValue()));
user.setNrOfMoods(getNrOfAvatarPanels() - 1);
user.setBackAvatarURL(((Checkbox)webAvatarCheck.firstElement()).getState() ? ((TextField)avatarURLField.firstElement()).getText() : ChatApplet.SERVER_POTRAIT_FILENAME[((Choice)serverAvatarChoice.firstElement()).getSelectedIndex()][0]);
for (int i = 1; i < getNrOfAvatarPanels(); i++) {
user.setAvatarURL(i - 1, ((Checkbox)webAvatarCheck.elementAt(i)).getState() || i > ChatRepository.PREDEFINED_NR_OF_MOODS ? ((TextField)avatarURLField.elementAt(i)).getText() : ChatApplet.SERVER_POTRAIT_FILENAME[((Choice)serverAvatarChoice.elementAt(i)).getSelectedIndex()][i]);
user.setMoodKeywords(i - 1, ((TextField)avatarKeywordsField.elementAt(i)).getText());
user.setMoodName(i - 1, ((TextField)moodNameField.elementAt(i)).getText());
try {
user.setMoodTimeout(i - 1, Integer.parseInt(((TextField)moodTimeoutField.elementAt(i)).getText()));
}
catch (NumberFormatException excpt) {
user.setMoodTimeout(i - 1, 0);
}
}
if (!(oldPasswordField.getText().equals("") && newPasswordField1.getText().equals("") && newPasswordField2.getText().equals(""))) {
if (oldPasswordField.getText().equals("") || newPasswordField1.getText().equals("") || newPasswordField2.getText().equals("") || (!newPasswordField1.getText().equals(newPasswordField2.getText())) || (!oldPasswordField.getText().equals(userParam.getPassword()))) {
chatApplet.setStatus("Password could not be changed: Invalid data");
return;
}
else {
user.setPassword(newPasswordField1.getText());
}
}
chatApplet.updateUser(user, connected);
}
/**
* Adds a Panel for an additional avatar.
*/
public void addAvatarPanel() {
Component components[];
super.addAvatarPanel();
updateAvatarButtons();
((Checkbox)webAvatarCheck.lastElement()).addItemListener(this);
((Checkbox)serverAvatarCheck.lastElement()).addItemListener(this);
((FocusPanel)singleAvatarPanel.lastElement()).addFocusListener(this);
((FocusPanel)singleAvatarPanel.lastElement()).addMouseListener(this);
components = ((FocusPanel)singleAvatarPanel.lastElement()).getComponents();
for (int i = 0; i < components.length; i++) {
components[i].addFocusListener(this);
components[i].addMouseListener(this);
}
}
/**
* Removes a Panel holding an avatar.
*
* @param avatarIndexParam the index of the avatar to be removed
*/
public void removeAvatarPanel(int avatarIndexParam) {
super.removeAvatarPanel(avatarIndexParam);
focusGained(new FocusEvent((FocusPanel)singleAvatarPanel.firstElement(), FocusEvent.FOCUS_GAINED));
updateAvatarButtons();
}
/**
* Toggles the Enabled-state of the Buttons for adding and removing avatars,
* depending on which avatar has the focus.
*/
public void updateAvatarButtons() {
if (removeAvatarButton != null)
removeAvatarButton.setEnabled(focusedAvatarIndex() > ChatRepository.PREDEFINED_NR_OF_MOODS);
}
/**
* Invoked when a Component gains the keyboard focus.
*
* @param event the FocusEvent
*/
public void focusGained(FocusEvent event) {
for (int i = 0; i < getNrOfAvatarPanels(); i++) {
if (((FocusPanel)singleAvatarPanel.elementAt(i)).isAncestorOf(event.getComponent())) {
if (focusedAvatarIndex() != -1 )
((FocusPanel)singleAvatarPanel.elementAt(focusedAvatarIndex())).transferFocus();
((FocusPanel)singleAvatarPanel.elementAt(i)).requestFocus();
updateAvatarButtons();
}
}
}
/**
* Invoked when a Component loses the keyboard focus.
*
* @param event the FocusEvent
*/
public void focusLost(FocusEvent event) {
}
/**
* Returns the index of the Panel which currently holds the focus.
*/
public int focusedAvatarIndex() {
for (int i = 0; i < getNrOfAvatarPanels(); i++) {
if (((FocusPanel)singleAvatarPanel.elementAt(i)).hasFocus()) {
return i;
}
}
return -1;
}
/**
* Invoked when the mouse has been clicked on a component.
*
* @param event the MouseEvent
*/
public void mouseClicked(MouseEvent event) {
}
/**
* Invoked when the mouse enters a component.
*
* @param event the MouseEvent
*/
public void mouseEntered(MouseEvent event) {
}
/**
* Invoked when the mouse xits a component.
*
* @param event the MouseEvent
*/
public void mouseExited(MouseEvent event) {
}
/**
* Invoked when a mouse button has been pressed on a component.
*
* @param event the MouseEvent
*/
public void mousePressed(MouseEvent event) {
focusGained(new FocusEvent(event.getComponent(), FocusEvent.FOCUS_GAINED));
}
/**
* Invoked when a mouse button has been released on a component.
*
* @param event the MouseEvent
*/
public void mouseReleased(MouseEvent event) {
}
}