/**
* Sets a new grid for this world. Occupants are transferred from the old world to the new.
*
* @param newGrid the new grid
*/
public void setGrid(Grid<T> newGrid) {
Grid<T> oldGrid = world.getGrid();
Map<Location, T> occupants = new HashMap<Location, T>();
for (Location loc : oldGrid.getOccupiedLocations()) occupants.put(loc, world.remove(loc));
world.setGrid(newGrid);
for (Location loc : occupants.keySet()) {
if (newGrid.isValid(loc)) world.add(loc, occupants.get(loc));
}
display.setGrid(newGrid);
repaint();
}
/**
* Constructs a WorldFrame that displays the occupants of a world
*
* @param world the world to display
*/
public WorldFrame(World<T> world) {
this.world = world;
count++;
resources = ResourceBundle.getBundle(getClass().getName() + "Resources");
try {
System.setProperty("sun.awt.exception.handler", GUIExceptionHandler.class.getName());
} catch (SecurityException ex) {
// will fail in an applet
}
addWindowListener(
new WindowAdapter() {
public void windowClosing(WindowEvent event) {
count--;
if (count == 0) System.exit(0);
}
});
displayMap = new DisplayMap();
String title = System.getProperty("info.gridworld.gui.frametitle");
if (title == null) title = resources.getString("frame.title");
setTitle(title);
setLocation(25, 15);
URL appIconUrl = getClass().getResource("GridWorld.gif");
ImageIcon appIcon = new ImageIcon(appIconUrl);
setIconImage(appIcon.getImage());
makeMenus();
JPanel content = new JPanel();
content.setBorder(BorderFactory.createEmptyBorder(15, 15, 15, 15));
content.setLayout(new BorderLayout());
setContentPane(content);
display = new GridPanel(displayMap, resources);
KeyboardFocusManager.getCurrentKeyboardFocusManager()
.addKeyEventDispatcher(
new KeyEventDispatcher() {
public boolean dispatchKeyEvent(KeyEvent event) {
if (getFocusOwner() == null) return false;
String text = KeyStroke.getKeyStrokeForEvent(event).toString();
final String PRESSED = "pressed ";
int n = text.indexOf(PRESSED);
if (n < 0) return false;
// filter out modifier keys; they are neither characters or actions
if (event.getKeyChar() == KeyEvent.CHAR_UNDEFINED && !event.isActionKey())
return false;
text = text.substring(0, n) + text.substring(n + PRESSED.length());
boolean consumed = getWorld().keyPressed(text, display.getCurrentLocation());
if (consumed) repaint();
return consumed;
}
});
JScrollPane scrollPane = new JScrollPane();
scrollPane.setViewport(new PseudoInfiniteViewport(scrollPane));
scrollPane.setViewportView(display);
content.add(scrollPane, BorderLayout.CENTER);
gridClasses =
new TreeSet<Class>(
new Comparator<Class>() {
public int compare(Class a, Class b) {
return a.getName().compareTo(b.getName());
}
});
for (String name : world.getGridClasses())
try {
gridClasses.add(Class.forName(name));
} catch (Exception ex) {
ex.printStackTrace();
}
Grid<T> gr = world.getGrid();
gridClasses.add(gr.getClass());
makeNewGridMenu();
control = new GUIController<T>(this, display, displayMap, resources);
content.add(control.controlPanel(), BorderLayout.SOUTH);
messageArea = new JTextArea(2, 35);
messageArea.setEditable(false);
messageArea.setFocusable(false);
messageArea.setBackground(new Color(0xFAFAD2));
content.add(new JScrollPane(messageArea), BorderLayout.NORTH);
pack();
repaint(); // to show message
display.setGrid(gr);
}