/*
* Ext GWT 2.2.4 - Ext for GWT
* Copyright(c) 2007-2010, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
package com.extjs.gxt.ui.client.widget.treegrid;
import com.extjs.gxt.ui.client.data.ModelData;
import com.extjs.gxt.ui.client.store.ListStore;
import com.extjs.gxt.ui.client.store.TreeStore;
import com.extjs.gxt.ui.client.widget.grid.ColumnData;
import com.extjs.gxt.ui.client.widget.grid.Grid;
import com.extjs.gxt.ui.client.widget.grid.GridCellRenderer;
import com.extjs.gxt.ui.client.widget.treepanel.TreePanel.Joint;
import com.google.gwt.user.client.ui.AbstractImagePrototype;
/**
* A <code>GridCellRenderer</code> that renders a tree into it's column.
* Renderer may be used in any column, not just the first.
*/
public class TreeGridCellRenderer<M extends ModelData> implements GridCellRenderer<M> {
@SuppressWarnings({"unchecked", "rawtypes"})
public Object render(M model, String property, ColumnData config, int rowIndex, int colIndex, ListStore<M> store,
Grid<M> grid) {
config.css = "x-treegrid-column";
assert grid instanceof TreeGrid : "TreeGridCellRenderer can only be used in a TreeGrid";
TreeGrid tree = (TreeGrid) grid;
TreeStore ts = tree.getTreeStore();
int level = ts.getDepth(model);
String id = getId(tree, model, property, rowIndex, colIndex);
String text = getText(tree, model, property, rowIndex, colIndex);
AbstractImagePrototype icon = calculateIconStyle(tree, model, property, rowIndex, colIndex);
Joint j = calcualteJoint(tree, model, property, rowIndex, colIndex);
return tree.getTreeView().getTemplate(model, id, text, icon, false, j, level - 1);
}
protected Joint calcualteJoint(TreeGrid<M> grid, M model, String property, int rowIndex, int colIndex) {
return grid.calcualteJoint(model);
}
protected AbstractImagePrototype calculateIconStyle(TreeGrid<M> grid, M model, String property, int rowIndex,
int colIndex) {
return grid.calculateIconStyle(model);
}
protected String getId(TreeGrid<M> grid, M model, String property, int rowIndex, int colIndex) {
return grid.findNode(model).id;
}
protected String getText(TreeGrid<M> grid, M model, String property, int rowIndex, int colIndex) {
return String.valueOf(model.get(property));
}
}