Swing supports tool tips, small help boxes that pop up when the mouse hovers over some element. The ToolTip node allows tool tips to be associated with chart ele­ments. The text displayed in the tool tip is the Title attribute of the ToolTip's parent node.

Example

In this example two Data nodes are created. Each Data node has a Title defined and a ToolTip node added as a child. Note that the ToolTip node just has to be created, no methods using it are normally required.

(Download Code)

 

import com.imsl.chart.*;

import java.awt.Color;

 

public class SampleToolTip extends JFrameChart {

 

    public SampleToolTip() {       

        Chart chart = getChart();

        AxisXY axis = new AxisXY(chart);

        double y1[] = {4, 6, 2, 1, 8};

        Data data1 = new Data(axis, y1);

        data1.setDataType(Data.DATA_TYPE_MARKER);

        data1.setMarkerColor(Color.red);

        data1.setMarkerType(Data.MARKER_TYPE_FILLED_CIRCLE);

        data1.setTitle("Set A");

        new ToolTip(data1);

       

        double y2[] = {7, 3, 4, 5, 2};

        Data data2 = new Data(axis, y2);

        data2.setDataType(Data.DATA_TYPE_MARKER);

        data2.setMarkerColor(Color.blue);

        data2.setMarkerType(Data.MARKER_TYPE_FILLED_SQUARE);

        data2.setTitle("Set B");

        new ToolTip(data2);

    }

   

    public static void main(String argv[]) {

        new SampleToolTip().setVisible(true);

    }

}

 

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