void updateViewport() {
baseEditor.lineCountEvent(text.getLineCount());
int start = 0;
try {
start = text.getTopIndex() - 1;
} catch (Exception e) {
e.printStackTrace(System.out);
}
if (start < 0) start = 0;
int end = start + text.getClientArea().height / text.getLineHeight();
baseEditor.visibleTextEvent(start, end - start + 2);
}
private void updateCursor(final String selection) {
Cursor cursor = null;
Class swtClass = SWT.class;
if (selection != null) {
try {
Field field = swtClass.getField(selection);
int cursorStyle = field.getInt(swtClass);
cursor = Display.getCurrent().getSystemCursor(cursorStyle);
} catch (Exception e) {
e.printStackTrace();
}
}
Iterator iter = controls.iterator();
while (iter.hasNext()) {
Control control = (Control) iter.next();
control.setCursor(cursor);
}
}