Re: [jCharts-users] Charts again

[Nathaniel G. A. <nat...@ya...>]

try this code.

public class SwingDemo extends JFrame
{
	private JPanel panel;

   private PieChart2DProperties pieChart2DProperties;
	private LegendProperties legendProperties;
	private ChartProperties chartProperties;


	/*******************************************************************************
	 *
	 ********************************************************************************/
	public SwingDemo() throws ChartDataException, PropertyException
	{
		initComponents();
	}


	/*******************************************************************************
	 *
	 ********************************************************************************/
	private void initComponents()
	{
		this.setSize( 500, 500 );
		this.panel = new JPanel( true );
		this.panel.setSize( 500, 500 );
		this.getContentPane().add( this.panel );

		this.pieChart2DProperties = new PieChart2DProperties();
		this.legendProperties= new LegendProperties();
		this.chartProperties= new ChartProperties();

		this.setVisible( true );

		addWindowListener( new java.awt.event.WindowAdapter()
		{
			public void windowClosing( WindowEvent windowEvent )
			{
				exitForm( windowEvent );
			}
		}
		);
	}


	/*********************************************************************************
	 *
	 * @param graphics
	 ********************************************************************************/
	public void paint( Graphics graphics )
	{
		try {
			String[] labels = {"BMW", "Audi", "Lexus"};
			String title = "Cars that Own";
			Paint[] paints = {Color.blue, Color.gray, Color.red};
			double[] data = {50d, 30d, 20d};
      	PieChartDataSet pieChartDataSet = new PieChartDataSet( title,
																					 data,
																					 labels,
																					 paints,
																					 this.pieChart2DProperties );

			Dimension dimension= this.panel.getSize();
			PieChart2D pieChart2D = new PieChart2D( pieChartDataSet,
																 this.legendProperties,
																 this.chartProperties,
																 (int) dimension.getWidth(),
																 (int) dimension.getHeight() );

			//***** BEGIN SWING SPECIFIC CODE ***********************************
			pieChart2D.setGraphics2D( (Graphics2D) this.panel.getGraphics() );
			pieChart2D.render();
			//***** END SWING SPECIFIC CODE *************************************
		}
		catch( ChartDataException chartDataException ) {
			chartDataException.printStackTrace();
		}
		catch( PropertyException propertyException ) {
			propertyException.printStackTrace();
		}
	}


	/*******************************************************************************
	 * Exit the Application
	 *
	 * @param windowEvent
	 ******************************************************************************/
	private void exitForm( WindowEvent windowEvent )
	{
		System.exit( 0 );
	}


	/******************************************************************************
	 *
	 ******************************************************************************/
	public static void main( String args[] ) throws ChartDataException, PropertyException
	{
		new SwingDemo();
	}


}




--- pve...@ic... wrote:
> Thanks Nathaniel, but I haven't fix the problem yet.
> 
> I'm using the code below as an example. The problem with this code is that, if
> you maximize, minimize or resize the frame, the chart disappear.
> 
> I guess the problem is with the paint(Graphics) method at Charts class, I tried
> overwritting that method as you said, but it didn't work. 
> 
> I don't know what to do. Please give me some advises.
> 
> pavel
> 
> 
> import javax.swing.JPanel;
> import javax.swing.*;
> import java.awt.*;
> import org.jCharts.chartData.*;
> import org.jCharts.properties.*;
> import org.jCharts.axisChart.*;
> import org.jCharts.nonAxisChart.*;
> import org.jCharts.types.ChartType;
> import org.jCharts.test.TestDataGenerator;
> import org.jCharts.axisChart.customRenderers.axisValue.renderers.*;
> 
> 
> public class Charts extends JPanel {
> 
>    LegendProperties lp = null;
>    ChartProperties cp = null;
>    BarChartProperties ctp = null;
>    PieChart2D chart = null ;
>    AxisProperties ap = null;
> 
>    public Charts() {
>    
>  /// ************** PIE CHART DATASET ************************
>      try {
>        double[] data = {
>            81d, 55d, 39d, 20.6d};
>        String[] labels = {
>            "BMW M5", "BMW M3", "Viper GTS-R", "Corvette Z06"};
>        Paint[] paints = {
>            Color.lightGray, Color.green, Color.blue, Color.red};
> 
>        PieChart2DProperties pieChart2DProperties = new PieChart2DProperties();
>        PieChartDataSet pieChartDataSet = new PieChartDataSet("Cars That Own",
>            data, labels, paints, pieChart2DProperties);
> 
>        chart = new PieChart2D(pieChartDataSet, new LegendProperties(),
>                           new ChartProperties(), 350, 350);
> 
>      }
>      catch(Exception e){
>        System.out.println(e);
>      }
> 
>    }
>     
>     public static void main(String args[]) throws Exception {
>          JFrame frame = new JFrame("CHART TEST");
>          frame.setSize( 400, 400 );
>          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
>         //uncomment this line to do not lose the chart when you resize the frame
>          //frame.setResizable(false);
>          Charts pieChart = new Charts();
>          frame.getContentPane().add(pieChart);
>          pieChart.setBackground(Color.white);
>          frame.setVisible(true);
>          pieChart.chart.setGraphics2D((Graphics2D)pieChart.getGraphics());
>          pieChart.chart.render();
>      }
> 
> 
> }
> 
> 
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=====
http://nathaniel-auvil.blog-city.com/

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