void BrowserNode::delete_it() {
if (! deletedp()) {
if (UndefinedNodePackage == 0) {
// not during a read
QString warning;
if (!delete_internal(warning)) {
warning = full_name() + TR(" cannot be deleted because :") + warning;
warn(warning);
}
else {
// mark modified to not delete the associated file(s)
// on exit if no save was done before
is_modified = TRUE;
}
if (BrowserSearchDialog::get() != 0)
BrowserSearchDialog::get()->update();
if (ReferenceDialog::get() != 0)
ReferenceDialog::get()->update();
}
else {
// during a read : no check
is_deleted = TRUE;
if (is_marked) {
marked_list.removeRef(this);
is_marked = FALSE;
}
if (is_writable())
package_modified();
if (get_data() != 0)
get_data()->delete_it();
// delete the sub elts
Q3ListViewItem * child;
for (child = firstChild(); child != 0; child = child->nextSibling())
if (! ((BrowserNode *) child)->deletedp())
((BrowserNode *) child)->delete_it();
setOpen(FALSE);
must_be_deleted();
}
}
}
void* rxt_delete(char *key, rxt_node *root)
{
rxt_node *parent, *grandparent;
rxt_node *n = get_internal(key, root);
void *v;
char *newkey = NULL;
if (!n) return NULL; // nonexistent
v = n->value;
// remove both the node and the parent inner node
// XXX TODO FIXME Still somewhat broken. Figure out.
parent = n->parent;
grandparent = parent->parent;
if (!grandparent) {
if (parent->left == n) {
return delete_internal(n, parent->right);
} else if (parent->right == n) {
return delete_internal(n, parent->left);
} else if (parent->value == n) {
parent->value = NULL;
parent->color = 0;
parent->pos = 0;
} else
printf("something very wrong when removing w/o gp!\n");
free(n);
return v;
}
// properly move around pointers and shit
// TODO ascii art
if (grandparent->left == n->parent) {
newkey = grandparent->right->key; // not sure if this is correct
if (parent->left == n) {
grandparent->left = parent->right;
parent->right->parent = grandparent;
} else if (parent->right == n) {
grandparent->left = parent->left;
parent->left->parent = grandparent;
} else
printf("something very wrong: removing grandparent->left\n");
} else if (grandparent->right == n->parent) {
newkey = grandparent->left->key;
if (parent->left == n ) {
grandparent->right = parent->right;
parent->right->parent = grandparent;
} else if (parent->right == n) {
grandparent->right = parent->left;
parent->left->parent = grandparent;
} else
printf("something very wrong: removing grandparent->right\n");
} else
printf("something very wrong: grandparent does not possess child\n");
reset_key(n->key, newkey, grandparent);
parent->left = NULL;
parent->right = NULL;
free(parent);
free(n); // we don't dynamically allocate node
return v;
}
