package isac.gui.treetable;

 import isac.gui.Worksheet;

 import isac.gui.mawen.editor.EditorListener;

 import isac.gui.mawen.syntax.Ast;

 import isac.gui.mawen.syntax.XSyntax;

 import isac.interfaces.IEditor;

 import isac.util.formulae.Formula;

 import java.awt.BorderLayout;

 import java.awt.Color;

 import java.awt.Component;

 import java.awt.Dimension;

 import java.awt.Rectangle;

 import java.util.ArrayList;

 import java.util.EventObject;

 import java.util.Iterator;

 import javax.swing.JPanel;

 import javax.swing.JTextField;

 import javax.swing.JTree;

 import javax.swing.UIManager;

 import javax.swing.border.LineBorder;

 import javax.swing.event.CellEditorListener;

 import javax.swing.event.ChangeEvent;

 import javax.swing.tree.TreeCellRenderer;

 public class CalcTreeCellEditor implements javax.swing.tree.TreeCellEditor {

 	protected ArrayList<CellEditorListener> listeners_;

 	protected Worksheet worksheet_;

 	protected Object editedNode_;

 	protected TreeCellRenderer renderer_;

 	protected IEditor editor_;

 	protected JTextField tacticText_;

 	protected JPanel editorPanel_;

 	private int subCell_;

 	public static final int SUBCELL_FORMULA = 1;

 	public static final int SUBCELL_TACTIC = 2;

 	public CalcTreeCellEditor( TreeCellRenderer renderer, Worksheet ws ) {

 		listeners_ = new ArrayList<CellEditorListener>();

 		editedNode_ = null;

 		subCell_ = 0;

 		renderer_ = renderer;

 		editor_ = EditorFactory.getFormulaEditor();

 		editor_.addEditorListener(new EditorListener() {

       @Override

       public void notifyLocalCheck() {

         System.out.println("notifyLocalCheck");

       }

       @Override

       public void notifyIsaCheck() {

 /*err*/ editedNode_ = new Formula(editor_.getMathText(), editor_.getFormula());

         notifyWorksheet();

       }

 /*err*/public void notifyBraille(Ast.Ast formula) {

 			  System.out.println("output to Braille display:");

 			  System.out.println(Ast.math_string_of(formula));

       }

     });

 		tacticText_ = new JTextField();

 		editorPanel_ = new JPanel();

 		editorPanel_.setOpaque(true);

 		editorPanel_.setBackground(UIManager.getColor("Tree.background"));

 //		GridBagLayout gbl = new GridBagLayout();

 		editorPanel_.setLayout(new BorderLayout());

 //    GridBagConstraints gbc = new GridBagConstraints();

 //    gbc.gridwidth = GridBagConstraints.REMAINDER;

 //    gbc.fill = GridBagConstraints.BOTH;

 //    gbc.weightx = 1.0;

 //    gbc.weighty = 1.0;

 //        

 //    gbc.anchor = GridBagConstraints.WEST;

 //    gbl.setConstraints( ep, gbc );		    

     editorPanel_.add(editor_.getComponent(), BorderLayout.CENTER);	

 //    gbc.anchor = GridBagConstraints.EAST;

 //    gbc.insets = new Insets( 0, 30, 0, 0 );

 //    gbl.setConstraints( tacticText_, gbc );

     editorPanel_.add(tacticText_, BorderLayout.SOUTH);

     worksheet_ = ws;

 	}

 	public void activateSubCell( int subcell ) {

 		subCell_ = subcell;

 	}

 	public int getSubCell() {

 		return subCell_;

 	}

 	public void addCellEditorListener(CellEditorListener listener) {

 		if( !listeners_.contains( listener ) )

 			listeners_.add( listener ); 

 		System.out.println("### Listeners : " + listeners_.size() );

 		Iterator<CellEditorListener> it = listeners_.iterator();

 		while(it.hasNext())

 			System.out.println( it.next().toString() );

 	}

 	public void notifyWorksheet() {

 		if( worksheet_ != null )

 			worksheet_.editingStopped( new ChangeEvent( this ) );

 	}

 	public Object getCellEditorValue() {

 		return editedNode_;

 	}

 	public boolean isCellEditable(EventObject e) {

 		return true;

 	}

 	public void removeCellEditorListener(CellEditorListener listener) {

 		listeners_.remove( listener ); 

 	}

 	public boolean shouldSelectCell(EventObject e) {

 		return true;

 	}

 	public boolean stopCellEditing() {

 		for( int i = 0; i < listeners_.size(); i++ )

 			((CellEditorListener)(listeners_.get(i))).editingStopped( new ChangeEvent( this ) );

 		return true;

 	}

 	public void cancelCellEditing() {

 		for( int i = 0; i < listeners_.size(); i++ )

 			((CellEditorListener)(listeners_.get(i))).editingCanceled( new ChangeEvent( this ) );

 	}	

 	/**called by double-clicking TreeTextPanel (which includes formula and tactic textfield)*/	

         @Override

 	public Component getTreeCellEditorComponent(JTree tree, Object value, 

 			boolean isSelected, boolean expanded, boolean leaf, int row) {

 		if( !isSelected ) {

 			return renderer_.getTreeCellRendererComponent(tree, value, true, expanded, leaf, row, true);

 		}

 		editedNode_ = value;

 		if( !(value instanceof CalcModelNode ) )

 			return null; 

 		CalcModelNode current_node = (CalcModelNode) value;

 		//

 		if (editor_ instanceof JTextField) {

 		  editor_.setFormula( current_node.toString() );

 		}else {

 		  if (current_node.getFormula() == null) {

 		    // new Ast

 /*err*/editor_.setFormula(new Ast.Constant("GAP"));

 		  }else {

 /*err*/editor_.setFormula(current_node.getFormula().getFormula().getTerm()   );

 		  }

 		}

 		try {

 			tacticText_.setText(((CalcModelNode)value).getSecondaryString() + "  ");

 		} 

 		catch (Exception e) {

 			tacticText_.setText("");

 		}

 		if( subCell_ == SUBCELL_TACTIC ) {

 		  if (editor_ instanceof JTextField) {

 		    ((JTextField)editor_).setEditable( false );

 		    ((JTextField)editor_).setEnabled( false );

 		  }

 			tacticText_.setBorder(new LineBorder( Color.BLACK  ) );			

 			tacticText_.setEditable( true );

 			tacticText_.setEnabled( true );

 			tacticText_.requestFocusInWindow();

 		}

 		if( subCell_ == SUBCELL_FORMULA ) {

 			tacticText_.setEditable( false );

 			tacticText_.setEnabled( false );

 			if (editor_ instanceof JTextField) {

   			((JTextField)editor_).setBorder(new LineBorder( Color.BLACK  ) );

   			((JTextField)editor_).setEditable( true );

   			((JTextField)editor_).setEnabled( true );

   			((JTextField)editor_).requestFocusInWindow();

 			}

 		}

 		editorPanel_.revalidate();

 		editorPanel_.setBackground(Color.RED);

 		Rectangle worksheet_rect = this.worksheet_.getBounds();

 		editorPanel_.setPreferredSize(new Dimension(worksheet_rect.width - 50, editor_.getExpressionSize().height + 25));

 		editorPanel_.revalidate();

 		tree.revalidate();

 		return editorPanel_;

 	}

 }