#include "chartdir.h"
#include <stdio.h>
int main(int argc, char *argv[])
{
char buffer[256];
// The data for the line chart
double data0[] = {410, 420, 500, 590};
double data1[] = {500, 370, 680, 850};
const char *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", "timesbi.ttf", 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)", "arialbi.ttf", 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("arialbd.ttf", 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->addBarLayer(Chart::Side);
// Add two data sets to the bar layer
layer->addDataSet(DoubleArray(data0, (int)(sizeof(data0) / sizeof(data0[0]))), 0xff6600,
"FY 2007");
layer->addDataSet(DoubleArray(data1, (int)(sizeof(data1) / sizeof(data1[0]))), 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(StringArray(labels, (int)(sizeof(labels) / sizeof(labels[0]))));
// 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->setMargin(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("arialbd.ttf");
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 < (int)(sizeof(data0) / sizeof(data0[0])); ++i) {
sprintf(buffer, "%g", data0[i]);
table->setText(i, 1, buffer);
sprintf(buffer, "%g", data1[i]);
table->setText(i, 2, buffer);
double percentageDiff = 100.0 * (data1[i] - data0[i]) / data0[i];
// Use red or green color depending on whether the difference is positive or negative
const char *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("arialbd.ttf");
// 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
sprintf(buffer, "%s FY 2007", layer->getLegendIcon(0));
table->setText(0, 1, buffer);
sprintf(buffer, "%s FY 2008", layer->getLegendIcon(1));
table->setText(0, 2, buffer);
// 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 = ArrayMath(DoubleArray(data0, (int)(sizeof(data0) / sizeof(data0[0])))).sum();
double total1 = ArrayMath(DoubleArray(data1, (int)(sizeof(data1) / sizeof(data1[0])))).sum();
sprintf(buffer, "%g", total0);
table->setText(table->getColCount() - 1, 1, buffer);
sprintf(buffer, "%g", total1);
table->setText(table->getColCount() - 1, 2, buffer);
// 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
const char *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
c->makeChart("datatable2.png");
//free up resources
delete c;
return 0;
} |