/** Loads combo choices fromt he platform and from PDE core preferences */
private void initializeChoices() {
IEclipsePreferences node = new InstanceScope().getNode(PDECore.PLUGIN_ID);
fOSChoices = new TreeSet<String>();
String[] os = Platform.knownOSValues();
for (int i = 0; i < os.length; i++) {
fOSChoices.add(os[i]);
}
String pref = node.get(ICoreConstants.OS_EXTRA, EMPTY_STRING);
if (!EMPTY_STRING.equals(pref)) {
addExtraChoices(fOSChoices, pref);
}
fWSChoices = new TreeSet<String>();
String[] ws = Platform.knownWSValues();
for (int i = 0; i < ws.length; i++) {
fWSChoices.add(ws[i]);
}
pref = node.get(ICoreConstants.WS_EXTRA, EMPTY_STRING);
if (!EMPTY_STRING.equals(pref)) {
addExtraChoices(fWSChoices, pref);
}
fArchChoices = new TreeSet<String>();
String[] arch = Platform.knownOSArchValues();
for (int i = 0; i < arch.length; i++) {
fArchChoices.add(arch[i]);
}
pref = node.get(ICoreConstants.ARCH_EXTRA, EMPTY_STRING);
if (!EMPTY_STRING.equals(pref)) {
addExtraChoices(fArchChoices, pref);
}
fNLChoices = new TreeSet<String>();
String[] nl = LocaleUtil.getLocales();
for (int i = 0; i < nl.length; i++) {
fNLChoices.add(nl[i]);
}
pref = node.get(ICoreConstants.NL_EXTRA, EMPTY_STRING);
if (!EMPTY_STRING.equals(pref)) {
addExtraChoices(fNLChoices, pref);
}
}
/**
* Returns <code>ITextSelection.class</code> or <code>null</code> if the class is not available.
*
* @return <code>ITextSelection.class</code> or <code>null</code> if class not available
* @since 1.0
*/
private static Class getTextSelectionClass() {
if (iTextSelectionClass != null) {
// tried before and succeeded
return iTextSelectionClass;
}
if (!textSelectionPossible) {
// tried before and failed
return null;
}
// JFace text plug-in is not on prereq chain of generic wb plug-in
// hence: ITextSelection.class won't compile
// and Class.forName("org.eclipse.jface.text.ITextSelection") won't find
// it need to be trickier...
Bundle bundle = Platform.getBundle(JFACE_TEXT_PLUG_IN);
if (bundle == null || bundle.getState() == Bundle.UNINSTALLED) {
// JFace text plug-in is not around, or has already
// been removed, assume that it will never be around
textSelectionPossible = false;
return null;
}
// plug-in is around
// it's not our job to activate the plug-in
if (bundle.getState() == Bundle.INSTALLED) {
// assume it might come alive later
textSelectionPossible = true;
return null;
}
try {
Class c = bundle.loadClass(TEXT_SELECTION_CLASS);
// remember for next time
iTextSelectionClass = c;
return iTextSelectionClass;
} catch (ClassNotFoundException e) {
// unable to load ITextSelection - sounds pretty serious
// treat as if JFace text plug-in were unavailable
textSelectionPossible = false;
return null;
}
}