public EditPoint getEditPoint() {
if (editPoint == null) editPoint = new EditPoint((IEntityPart) getFocusEntityPart(), 0);
else {
IEntityPart focusPart = (IEntityPart) getFocusEntityPart();
if (editPoint.focus != focusPart) {
editPoint.focus = focusPart;
editPoint.caret = 0;
}
}
return editPoint;
}
public boolean navigateModel(KeyEvent event, int direction) {
EditPoint focusPoint = getEditPoint();
if (!(focusPoint.focus.getParent() instanceof IEntityPart)) return false;
switch (direction) {
case NORTH:
IEntityPart parentPart = (IEntityPart) focusPoint.focus.getParent();
if (isRootPart(parentPart)) return false;
editPoint.focus = parentPart;
break;
case SOUTH:
List<?> children = focusPoint.focus.getChildren();
if (children.isEmpty()) return false;
editPoint.focus = (IEntityPart) children.get(0);
break;
case EAST:
parentPart = (IEntityPart) focusPoint.focus.getParent();
if (isRootPart(parentPart)) return false;
List<?> siblings = parentPart.getChildren();
int index = siblings.indexOf(editPoint.focus);
if (index < siblings.size() - 1)
editPoint.focus = findModelFirstChild((IEntityPart) siblings.get(index + 1));
else editPoint.focus = parentPart;
break;
case WEST:
parentPart = (IEntityPart) focusPoint.focus.getParent();
if (isRootPart(parentPart)) return false;
siblings = parentPart.getChildren();
index = siblings.indexOf(editPoint.focus);
if (index > 0) editPoint.focus = findModelLastChild((IEntityPart) siblings.get(index - 1));
else editPoint.focus = parentPart;
break;
}
editPoint.caret = 0;
navigateTo(editPoint.focus, event);
return true;
}