void releaseHandle() {
super.releaseHandle();
if (nsColumn != null) {
nsColumn.headerCell().release();
nsColumn.release();
}
nsColumn = null;
parent = null;
}
public void setImage(Image image) {
checkWidget();
if (image != null && image.isDisposed()) {
error(SWT.ERROR_INVALID_ARGUMENT);
}
super.setImage(image);
NSTableHeaderView headerView = ((NSOutlineView) parent.view).headerView();
if (headerView == null) return;
int index = parent.indexOf(nsColumn);
NSRect rect = headerView.headerRectOfColumn(index);
headerView.setNeedsDisplayInRect(rect);
}
public void setText(String string) {
checkWidget();
if (string == null) error(SWT.ERROR_NULL_ARGUMENT);
super.setText(string);
char[] buffer = new char[text.length()];
text.getChars(0, buffer.length, buffer, 0);
int length = fixMnemonic(buffer);
displayText = new String(buffer, 0, length);
NSString title = NSString.stringWith(displayText);
nsColumn.headerCell().setTitle(title);
NSTableHeaderView headerView = ((NSOutlineView) parent.view).headerView();
if (headerView == null) return;
int index = parent.indexOf(nsColumn);
NSRect rect = headerView.headerRectOfColumn(index);
headerView.setNeedsDisplayInRect(rect);
}
void releaseWidget() {
super.releaseWidget();
if (parent.sortColumn == this) {
parent.sortColumn = null;
}
}
void deregister() {
super.deregister();
display.removeWidget(nsColumn.headerCell());
}