public void apply(ITextViewer viewer, char trigger, int stateMask, int offset) {
Position[] positions = null;
FormatterPrefs formatterPrefs = getFormatterPrefs();
StringBuffer buffer = new StringBuffer();
buffer.append(fProposal.getName());
if (formatterPrefs.beforeOpeningParen) buffer.append(SPACE);
buffer.append(LPAREN);
if (formatterPrefs.afterOpeningParen) buffer.append(SPACE);
if (Signature.getParameterCount(fProposal.getSignature()) > 0) {
char[][] parameters = fProposal.findParameterNames(null);
if (parameters != null) {
positions = new Position[parameters.length];
int base = getReplacementOffset();
for (int i = 0; i < parameters.length; i++) {
if (i != 0) {
if (formatterPrefs.beforeComma) buffer.append(SPACE);
buffer.append(COMMA);
if (formatterPrefs.afterComma) buffer.append(SPACE);
}
Position position = new Position(0, 0);
position.setOffset(base + buffer.length());
position.setLength(parameters[i].length);
positions[i] = position;
buffer.append(parameters[i]);
}
}
}
if (formatterPrefs.beforeClosingParen) buffer.append(SPACE);
buffer.append(RPAREN);
setReplacementString(buffer.toString());
super.apply(viewer, trigger, stateMask, offset);
try {
if (positions != null) {
LinkedModeModel model = new LinkedModeModel();
for (int i = 0; i < positions.length; i++) {
LinkedPositionGroup group = new LinkedPositionGroup();
Position position = positions[i];
group.addPosition(
new LinkedPosition(
viewer.getDocument(), position.getOffset(), position.getLength(), i));
model.addGroup(group);
}
model.forceInstall();
LinkedModeUI ui = new EditorLinkedModeUI(model, viewer);
ui.setExitPosition(
viewer, getReplacementOffset() + getReplacementString().length(), 0, Integer.MAX_VALUE);
ui.setExitPolicy(new ExitPolicy(')', viewer.getDocument()));
ui.setCyclingMode(LinkedModeUI.CYCLE_WHEN_NO_PARENT);
ui.setDoContextInfo(true);
ui.enter();
fSelectedRegion = ui.getSelectedRegion();
}
} catch (BadLocationException e) {
}
}
