package wjhk.jupload2.gui.filepanel.treeview;

 import java.awt.Component;

 import java.awt.Graphics;

 import javax.swing.JTable;

 import javax.swing.JTree;

 import javax.swing.table.TableCellRenderer;

 import javax.swing.tree.TreeModel;

 /**

  * This code is taken from the tutorial written by Jörn Hameister, <A

  * HREF="http://www.hameister.org/JavaSwingTreeTable.html">available here</A>.<BR/>

  * <BR/>

  * <UL>

  * <LI>Call to tree.setVisibleRoot(false) pour masquer la racine.</LI>

  * <UL>

  * <BR/>

  * The last thing the JTree and JTable which must now be created. The Tree component MyTreeTableCellRenderer inherits

  * from JTree and implements the TableCellRenderer interface. This class ensures that the row heights of Tree and Table

  * are the same and are set correctly in the selection of the background colors. It also ensures that the elements of

  * the tree are indented correctly depending on the level.

  * 

  * @author Jörn Hameister

  */

 public class MyTreeTableCellRenderer extends JTree implements TableCellRenderer {

     private static final long serialVersionUID = 1L;

     /** Die letzte Zeile, die gerendert wurde. */

     protected int visibleRow;

     private MyTreeTable treeTable;

     public MyTreeTableCellRenderer(MyTreeTable treeTable, TreeModel model) {

         super(model);

         this.treeTable = treeTable;

         // Setzen der Zeilenhoehe fuer die JTable

         // Muss explizit aufgerufen werden, weil treeTable noch

         // null ist, wenn super(model) setRowHeight aufruft!

         setRowHeight(getRowHeight());

         setRootVisible(false);

         setScrollsOnExpand(true);

         setShowsRootHandles(true);

     }

     /**

      * Tree und Table muessen die gleiche Hoehe haben.

      */

     public void setRowHeight(int rowHeight) {

         if (rowHeight > 0) {

             super.setRowHeight(rowHeight);

             if (treeTable != null && treeTable.getRowHeight() != rowHeight) {

                 treeTable.setRowHeight(getRowHeight());

             }

         }

     }

     /**

      * Tree muss die gleiche Hoehe haben wie Table.

      */

     public void setBounds(int x, int y, int w, int h) {

         super.setBounds(x, 0, w, treeTable.getHeight());

     }

     /**

      * Sorgt fuer die Einrueckung der Ordner.

      */

     public void paint(Graphics g) {

         g.translate(0, -visibleRow * getRowHeight());

         super.paint(g);

     }

     /**

      * Liefert den Renderer mit der passenden Hintergrundfarbe zurueck.

      */

     public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus,

             int row, int column) {

         if (isSelected)

             setBackground(table.getSelectionBackground());

         else

             setBackground(table.getBackground());

         visibleRow = row;

         return this;

     }

 }