int main(int argc, char *argv[])
{
// the names of the tasks
const char *labels[] = {"Market Research", "Define Specifications",
"Overall Archiecture", "Project Planning", "Detail Design",
"Software Development", "Test Plan", "Testing and QA", "User Documentation"};
// the planned start dates and end dates for the tasks
double startDate[] = {chartTime(2004, 8, 16), chartTime(2004, 8, 30), chartTime(
2004, 9, 13), chartTime(2004, 9, 20), chartTime(2004, 9, 27), chartTime(2004,
10, 4), chartTime(2004, 10, 25), chartTime(2004, 11, 1), chartTime(2004, 11,
8)};
double endDate[] = {chartTime(2004, 8, 30), chartTime(2004, 9, 13), chartTime(
2004, 9, 27), chartTime(2004, 10, 4), chartTime(2004, 10, 11), chartTime(
2004, 11, 8), chartTime(2004, 11, 8), chartTime(2004, 11, 22), chartTime(
2004, 11, 22)};
// the actual start dates and end dates for the tasks up to now
double actualStartDate[] = {chartTime(2004, 8, 16), chartTime(2004, 8, 27),
chartTime(2004, 9, 9), chartTime(2004, 9, 18), chartTime(2004, 9, 22)};
double actualEndDate[] = {chartTime(2004, 8, 27), chartTime(2004, 9, 9),
chartTime(2004, 9, 27), chartTime(2004, 10, 2), chartTime(2004, 10, 8)};
// Create a XYChart object of size 620 x 280 pixels. Set background color to
// light green (ccffcc) with 1 pixel 3D border effect.
XYChart *c = new XYChart(620, 280, 0xccffcc, 0x000000, 1);
// Add a title to the chart using 15 points Times Bold Itatic font, with white
// (ffffff) text on a dark green (0x6000) background
c->addTitle("Mutli-Layer Gantt Chart Demo", "timesbi.ttf", 15, 0xffffff
)->setBackground(0x006000);
// Set the plotarea at (140, 55) and of size 460 x 200 pixels. Use alternative
// white/grey background. Enable both horizontal and vertical grids by setting
// their colors to grey (c0c0c0). Set vertical major grid (represents month
// boundaries) 2 pixels in width
c->setPlotArea(140, 55, 460, 200, 0xffffff, 0xeeeeee, Chart::LineColor, 0xc0c0c0,
0xc0c0c0)->setGridWidth(2, 1, 1, 1);
// swap the x and y axes to create a horziontal box-whisker chart
c->swapXY();
// Set the y-axis scale to be date scale from Aug 16, 2004 to Nov 22, 2004, with
// ticks every 7 days (1 week)
c->yAxis()->setDateScale(chartTime(2004, 8, 16), chartTime(2004, 11, 22), 86400 *
7);
// Add a red (ff0000) dash line to represent the current day
c->yAxis()->addMark(chartTime(2004, 10, 8), c->dashLineColor(0xff0000,
Chart::DashLine));
// Set multi-style axis label formatting. Month labels are in Arial Bold font in
// "mmm d" format. Weekly labels just show the day of month and use minor tick
// (by using '-' as first character of format string).
c->yAxis()->setMultiFormat(Chart::StartOfMonthFilter(),
"<*font=arialbd.ttf*>{value|mmm d}", Chart::StartOfDayFilter(), "-{value|d}")
;
// Set the y-axis to shown on the top (right + swapXY = top)
c->setYAxisOnRight();
// Set the labels on the x axis
c->xAxis()->setLabels(StringArray(labels, sizeof(labels)/sizeof(labels[0])));
// Reverse the x-axis scale so that it points downwards.
c->xAxis()->setReverse();
// Set the horizontal ticks and grid lines to be between the bars
c->xAxis()->setTickOffset(0.5);
// Use blue (0000aa) as the color for the planned schedule
int plannedColor = 0x0000aa;
// Use a red hash pattern as the color for the actual dates. The pattern is
// created as a 4 x 4 bitmap defined in memory as an array of colors.
int pattern1[] = {0xffffff, 0xffffff, 0xffffff, 0xff0000, 0xffffff, 0xffffff,
0xff0000, 0xffffff, 0xffffff, 0xff0000, 0xffffff, 0xffffff, 0xff0000,
0xffffff, 0xffffff, 0xffffff};
int actualColor = c->patternColor(IntArray(pattern1,
sizeof(pattern1)/sizeof(pattern1[0])), 4);
// Add a box whisker layer to represent the actual dates. We add the actual dates
// layer first, so it will be the top layer.
BoxWhiskerLayer *actualLayer = c->addBoxLayer(DoubleArray(actualStartDate,
sizeof(actualStartDate)/sizeof(actualStartDate[0])), DoubleArray(
actualEndDate, sizeof(actualEndDate)/sizeof(actualEndDate[0])), actualColor,
"Actual");
// Set the bar height to 8 pixels so they will not block the bottom bar
actualLayer->setDataWidth(8);
// Add a box-whisker layer to represent the planned schedule date
c->addBoxLayer(DoubleArray(startDate, sizeof(startDate)/sizeof(startDate[0])),
DoubleArray(endDate, sizeof(endDate)/sizeof(endDate[0])), plannedColor,
"Planned")->setBorderColor(Chart::SameAsMainColor);
// Add a legend box on the top right corner (595, 60) of the plot area with 8 pt
// Arial Bold font. Use a semi-transparent grey (80808080) background.
LegendBox *b = c->addLegend(595, 60, false, "arialbd.ttf", 8);
b->setAlignment(Chart::TopRight);
b->setBackground(0x80808080, -1, 2);
// output the chart
c->makeChart("layergantt.png");
//free up resources
delete c;
return 0;
}
