Data Table (2)

[JSP Version] jspdemo/datatable2.jsp
<%@page import="ChartDirector.*, java.util.*" %>
<%
// The data for the line chart
double[] data0 = {410, 420, 500, 590};
double[] data1 = {500, 370, 680, 850};
String[] labels = {"Q1", "Q2", "Q3", "Q4"};

// Create a XYChart object of size 600 x 400 pixels
XYChart c = new XYChart(600, 400);

// Add a title to the chart using 18pt Times Bold Italic font
TextBox title = c.addTitle("Product Line Global Revenue", "Times New Roman Bold Italic", 18);

// Tentatively set the plotarea at (50, 55) and of (chart_width - 100) x (chart_height - 150) pixels
// in size. Use a vertical gradient color from sky blue (aaccff) t0 light blue (f9f9ff) as
// background. Set both horizontal and vertical grid lines to dotted semi-transprent black
// (aa000000).
PlotArea plotArea = c.setPlotArea(50, 55, c.getWidth() - 100, c.getHeight() - 150,
    c.linearGradientColor(0, 55, 0, 55 + c.getHeight() - 150, 0xaaccff, 0xf9fcff), -1, -1,
    c.dashLineColor(0xaa000000, Chart.DotLine), -1);

// Set y-axis title using 12 points Arial Bold Italic font, and set its position 10 pixels from the
// axis.
c.yAxis().setTitle("Revenue (USD millions)", "Arial Bold Italic", 12);
c.yAxis().setTitlePos(Chart.Left, 10);

// Set y-axis label style to 10 points Arial Bold and axis color to transparent
c.yAxis().setLabelStyle("Arial Bold", 10);
c.yAxis().setColors(Chart.Transparent);

// Set y-axis tick density to 30 pixels. ChartDirector auto-scaling will use this as the guideline
// when putting ticks on the y-axis.
c.yAxis().setTickDensity(30);

// Add a bar layer to the chart with side layout
BarLayer layer = c.addBarLayer2(Chart.Side);

// Add two data sets to the bar layer
layer.addDataSet(data0, 0xff6600, "FY 2007");
layer.addDataSet(data1, 0x0088ff, "FY 2008");

// Use soft lighting effect with light direction from the left
layer.setBorderColor(Chart.Transparent, Chart.softLighting(Chart.Left));

// Set the x axis labels
c.xAxis().setLabels(labels);

// Convert the labels on the x-axis to a CDMLTable
CDMLTable table = c.xAxis().makeLabelTable();

// Set the default left/right margins to 5 pixels and top/bottom margins to 3 pixels. Set the
// default font size to 10 points
TextBox cellStyle = table.getStyle();
cellStyle.setMargin2(5, 5, 4, 3);
cellStyle.setFontSize(10);

// Set the first row to use Arial Bold font, with a light grey (eeeeee) background.
TextBox firstRowStyle = table.getRowStyle(0);
firstRowStyle.setFontStyle("Arial Bold");
firstRowStyle.setBackground(0xeeeeee, Chart.LineColor);

//
// We can add more information to the table. In this sample code, we add the data series and the
// legend icons to the table.
//

// Add 3 more rows to the table. Set the background of the 2nd row to light grey (eeeeee).
table.appendRow();
table.appendRow().setBackground(0xeeeeee, Chart.LineColor);
table.appendRow();

// Put the values of the 2 data series in the first 2 rows. Put the percentage differences in the
// 3rd row.
for(int i = 0; i < data0.length; ++i) {
    table.setText(i, 1, String.valueOf(data0[i]));
    table.setText(i, 2, String.valueOf(data1[i]));

    double percentageDiff = 100.0 * (data1[i] - data0[i]) / data0[i];

    // Use red or green color depending on whether the difference is positive or negative
    String formatString = "<*color=008800*>+{value|1}%";
    if (percentageDiff < 0) {
        formatString = "<*color=cc0000*>{value|1}%";
    }
    table.setText(i, 3, c.formatValue(percentageDiff, formatString));
}

// Insert a column on the left for the legend icons using Arial Bold font.
table.insertCol(0).setFontStyle("Arial Bold");

// The top cell is set to transparent, so it is invisible
table.getCell(0, 0).setBackground(Chart.Transparent, Chart.Transparent);

// The next 2 cells are set to the legend icons and names of the 2 data series
table.setText(0, 1, layer.getLegendIcon(0) + "  FY 2007");
table.setText(0, 2, layer.getLegendIcon(1) + "  FY 2008");

// The last cell is set to "Change"
table.setText(0, 3, "Change");

// Append a column on the right for the total values.
table.appendCol();

// Put "Total" in the top cell as the heading of this column
table.setText(table.getColCount() - 1, 0, "Total");

// The next two cells are the total of the data series
double total0 = new ArrayMath(data0).sum();
double total1 = new ArrayMath(data1).sum();
table.setText(table.getColCount() - 1, 1, String.valueOf(total0));
table.setText(table.getColCount() - 1, 2, String.valueOf(total1));

// The last cell is the percentage differences of the total
double totalPercentageDiff = (total1 - total0) / total0 * 100;

// Use red or green color depending on whether the difference is positive or negative
String totalFormatString = "<*color=008800*>+{value|1}%";
if (totalPercentageDiff < 0) {
    totalFormatString = "<*color=cc0000*>{value|1}%";
}
table.setText(table.getColCount() - 1, 3, c.formatValue(totalPercentageDiff, totalFormatString));

//
// We now demonstrate how to adjust the plot area positions, to allow space for the newly inserted
// left and right columns in the table.
//

// We layout the axis first in order to get the axis metrics (including table metrics)
c.layoutAxes();

// If the first column is wider than the left y-axis, we need to reserve for some left margin to
// ensure the first column stays within the chart.
int leftMargin = 0;
if (table.getColWidth(0) > c.yAxis().getThickness()) {
    leftMargin = table.getColWidth(0) - c.yAxis().getThickness();
}

// Similarly, we need to reserve some right margin for the last column
int rightMargin = table.getColWidth(table.getColCount() - 1);

// Adjust the plot area size, such that the bounding box (inclusive of axes) using the given left
// and right margin, plus 2 more pixels. Put the plot area 10 pixels below the title and use 2
// pixels as the bottom margin. from the left, right and bottom edge, and is just under the legend
// box.
c.packPlotArea(leftMargin + 2, title.getHeight() + 10, c.getWidth() - 3 - rightMargin, c.getHeight()
     - 3);

// After determining the exact plot area position, we may adjust title position so that it is
// centered relative to the plot area (instead of the chart)
title.setPos(plotArea.getLeftX() + (plotArea.getWidth() - title.getWidth()) / 2, title.getTopY());

// Output the chart
WebChartViewer viewer = new WebChartViewer(request, "chart1");
viewer.setChart(c, Chart.SVG);

// Include tool tip for the chart
viewer.setImageMap(c.getHTMLImageMap("", "",
    "title='Revenue in {xLabel} {dataSetName}: US$ {value}M'"));
%>
<!DOCTYPE html>
<html>
<head>
    <title>Data Table (2)</title>
    <!-- Include ChartDirector Javascript Library to support chart interactions -->
    <script type="text/javascript" src="cdjcv.js"></script>
</head>
<body style="margin:5px 0px 0px 5px">
    <div style="font:bold 18pt verdana;">
        Data Table (2)
    </div>
    <hr style="border:solid 1px #000080; background:#000080" />
    <div style="font:10pt verdana; margin-bottom:1.5em">
        <a href="viewsource.jsp?file=<%=request.getServletPath()%>">View Source Code</a>
    </div>
    <!-- ****** Here is the chart image ****** -->
    <%= viewer.renderHTML(response) %>
</body>
</html>