/**
* Find a foreground event consumer by ID.
*
* @param displayId ID of the display
* @return a foreground event consumer object or null if not found
*/
public ForegroundEventConsumer findForegroundEventConsumer(int displayId) {
DisplayAccess da = findDisplayById(displayId);
if (da == null) {
return null;
}
return da.getForegroundEventConsumer();
}
/**
* Removes display objects by the owner name from the container.
*
* @param owner the MIDlet that owns this display
* @return true if display has been succcessfully removed, false, if display object has not been
* found in the container.
*/
public synchronized boolean removeDisplaysByOwner(Object owner) {
int size = displays.size();
for (int i = size; --i >= 0; ) {
DisplayAccess current = (DisplayAccess) displays.elementAt(i);
if (current.getOwner() == owner) {
displays.removeElementAt(i);
}
}
return (displays.size() < size);
}
/**
* Find a display by ID.
*
* @param displayId ID of the display
* @return a display access object or null if not found
*/
public synchronized DisplayAccess findDisplayById(int displayId) {
int size = displays.size();
for (int i = 0; i < size; i++) {
DisplayAccess current = (DisplayAccess) displays.elementAt(i);
if (current.getDisplayId() == displayId) {
return current;
}
}
return null;
}
/**
* Find a primary display by owner.
*
* @param owner class of the MIDlet that owns this display
* @return a display access object or null if not found
*/
public synchronized DisplayAccess findPrimaryDisplayByOwner(Object owner) {
int size = displays.size();
DisplayAccess d = null;
for (int i = 0; i < size; i++) {
DisplayAccess current = (DisplayAccess) displays.elementAt(i);
if ((current.getOwner() == owner) && current.getDisplayDevice().isPrimaryDisplay()) {
d = current;
break;
}
}
return d;
}
/**
* Adds a display object to the container and sets a the display's ID to new unique value for this
* isolate, as a single atomic operation.
*
* <p>Intended to be called from Display constructor.
*
* @param da display object to add
*/
public synchronized void addDisplay(DisplayAccess da) {
if (displays.indexOf(da) == -1) {
int newId = createDisplayId();
da.setDisplayId(newId);
displays.addElement(da);
}
}
/**
* Find all display event consumers.
*
* @return a display event consumer array object
*/
public DisplayEventConsumer[] getAllDisplayEventConsumers() {
int size = displays.size();
DisplayEventConsumer[] consumers = new DisplayEventConsumer[size];
DisplayAccess da;
for (int i = 0; i < size; i++) {
da = (DisplayAccess) displays.elementAt(i);
if (da != null) {
consumers[i] = da.getDisplayEventConsumer();
}
}
return consumers;
}
/**
* Find the displays by hardwareId.
*
* @return array of display access objects or null if not found
*/
public synchronized DisplayAccess[] findDisplaysByHardwareId(int hardwareId) {
int size = displays.size();
Vector v = new Vector(2, 2);
System.out.println("size = " + size);
for (int i = 0; i < size; i++) {
DisplayAccess current = (DisplayAccess) displays.elementAt(i);
if (current.getDisplayDevice().getHardwareId() == hardwareId) {
v.addElement(current);
}
}
DisplayAccess[] ret = null;
if (v.size() > 0) {
ret = new DisplayAccess[v.size()];
v.copyInto(ret);
}
return ret;
}
/**
* Find the displays by owner.
*
* @param owner the object that owns the display
* @param capabilities display device capbilities filter
* @return array of display access objects or null if not found
*/
public synchronized DisplayAccess[] findDisplaysByOwner(Object owner, int capabilities) {
int size = displays.size();
Vector v = new Vector(2, 2);
for (int i = 0; i < size; i++) {
DisplayAccess current = (DisplayAccess) displays.elementAt(i);
if ((current.getOwner() == owner)
&& (current.getDisplayDevice().getCapabilities() & capabilities) == capabilities) {
v.addElement(current);
}
}
DisplayAccess[] ret = null;
if (v.size() > 0) {
ret = new DisplayAccess[v.size()];
v.copyInto(ret);
}
return ret;
}
