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package com.ecrsoft.common.javafx;

import javafx.application.Application;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Pos;
import javafx.scene.control.Button;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableColumn.CellDataFeatures;
import javafx.scene.control.TableView;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.Scene;
import javafx.scene.control.CheckBox;
import javafx.scene.control.TextField;
import javafx.stage.Stage;
import javafx.util.Callback;

/**
 *
 * @author jjensen
 */
public class TableTest extends Application
{
    public static void main( String[] args )
    {
        Application.launch( TableTest.class, args );
    }

    @Override
    public void start( Stage primaryStage )
    {
        primaryStage.setTitle( "TableView Test" );

        VBox vbox = new VBox( 5 );
        vbox.setAlignment( Pos.CENTER);
        
        Scene scene = new Scene( vbox, 300, 300, Color.LIGHTGRAY );
        final TableView tableView = new TableView( );

        tableView.setColumnResizePolicy( TableView.CONSTRAINED_RESIZE_POLICY );
        tableView.setPrefHeight( 200);
        tableView.setPrefWidth( 200 );
        
        TableColumn columnA = new TableColumn( "Column A" );
        columnA.setDataRetriever( new Callback( )
        {
            @Override
            public Object call( Object param )
            {
                return(( TestObject )(( CellDataFeatures )param ).getValue( )).a( );
            }
        } );
        TableColumn columnB = new TableColumn( "Column B" );
        columnB.setDataRetriever( new Callback( )
        {
            @Override
            public Object call( Object param )
            {
                return(( TestObject )(( CellDataFeatures )param ).getValue( )).b( );
            }
        } );
        tableView.getColumns( ).setAll( columnA, columnB );

        final CheckBox scrollToEnd = new CheckBox( "Scroll to End");
        
        final TextField textField = new TextField( "10");
        textField.setPromptText( "Items to Add");
        
        Button addItems = new Button( "Add Items" );
        addItems.setOnAction( new EventHandler<ActionEvent>( )
        {
            @Override
            public void handle( ActionEvent event )
            {
                int count = Integer.parseInt( textField.getText());
                
                ObservableList<TestObject> list = tableView.getItems();
                int i = 0;

                while( i < count * 2 )
                {
                    list.add( new TestObject( i++, i++ ));
                }
                
                if( scrollToEnd.isSelected())
                {
                    tableView.getSelectionModel().selectLast();
                    tableView.scrollTo( tableView.getItems().size() - 1);
                }
            }
        } );
        
        Button clearItems = new Button( "Clear Items" );
        clearItems.setOnAction( new EventHandler<ActionEvent>( )
        {
            @Override
            public void handle( ActionEvent event )
            {
                tableView.getItems().clear();
            }
        } );
        
        vbox.getChildren( ).setAll( tableView, scrollToEnd, textField, addItems, clearItems);
        primaryStage.setScene( scene );
        primaryStage.setVisible( true );
    }

    private static final class TestObject
    {
        private final int a;
        private final int b;

        public TestObject( int a, int b )
        {
            this.a = a;
            this.b = b;
        }

        public int a( )
        {
            return a;
        }

        public int b( )
        {
            return b;
        }
    }
}