*/
protected void render(JspWriter out, TreeControlNode node,
int level, int width, boolean last)
throws IOException {
HttpServletResponse response =
(HttpServletResponse) pageContext.getResponse();
// if the node is root node and the label value is
// null, then do not render root node in the tree.
if ("ROOT-NODE".equalsIgnoreCase(node.getName()) &&
(node.getLabel() == null)) {
// Render the children of this node
TreeControlNode children[] = node.findChildren();
int lastIndex = children.length - 1;
int newLevel = level + 1;
for (int i = 0; i < children.length; i++) {
render(out, children[i], newLevel, width, i == lastIndex);
}
return;
}
// Render the beginning of this node
out.println(" <tr valign=\"middle\">");
// Create the appropriate number of indents
for (int i = 0; i < level; i++) {
int levels = level - i;
TreeControlNode parent = node;
for (int j = 1; j <= levels; j++)
parent = parent.getParent();
if (parent.isLast())
out.print(" <td></td>");
else {
out.print(" <td><img src=\"");
out.print(images);
out.print("/");
out.print(IMAGE_LINE_VERTICAL);
out.print("\" border=\"0\"></td>");
}
out.println();
}
// Render the tree state image for this node
// HACK to take into account special characters like = and &
// in the node name, could remove this code if encode URL
// and later request.getParameter() could deal with = and &
// character in parameter values.
String encodedNodeName = URLEncoder.encode(node.getName());
String action = replace(getAction(), "${name}", encodedNodeName);
String updateTreeAction =
replace(getAction(), "tree=${name}", "select=" + encodedNodeName);
updateTreeAction =
((HttpServletResponse) pageContext.getResponse()).
encodeURL(updateTreeAction);
out.print(" <td>");
if ((action != null) && !node.isLeaf()) {
out.print("<a href=\"");
out.print(response.encodeURL(action));
out.print("\">");
}
out.print("<img src=\"");
out.print(images);
out.print("/");