#include "chartdir.h"
int main(int argc, char *argv[])
{
// data for the gantt chart, representing the start date, end date and names for various
// activities
double startDate[] = {Chart::chartTime(2004, 8, 16), Chart::chartTime(2004, 8, 30),
Chart::chartTime(2004, 9, 13), Chart::chartTime(2004, 9, 20), Chart::chartTime(2004, 9, 27),
Chart::chartTime(2004, 10, 4), Chart::chartTime(2004, 10, 25), Chart::chartTime(2004, 11, 1
), Chart::chartTime(2004, 11, 8)};
double endDate[] = {Chart::chartTime(2004, 8, 30), Chart::chartTime(2004, 9, 13),
Chart::chartTime(2004, 9, 27), Chart::chartTime(2004, 10, 4), Chart::chartTime(2004, 10, 11
), Chart::chartTime(2004, 11, 8), Chart::chartTime(2004, 11, 8), Chart::chartTime(2004, 11,
22), Chart::chartTime(2004, 11, 22)};
const char *labels[] = {"Market Research", "Define Specifications", "Overall Archiecture",
"Project Planning", "Detail Design", "Software Development", "Test Plan", "Testing and QA",
"User Documentation"};
// Create a XYChart object of size 620 x 280 pixels. Set background color to light blue
// (ccccff), with 1 pixel 3D border effect.
XYChart *c = new XYChart(620, 280, 0xccccff, 0x000000, 1);
// Add a title to the chart using 15 points Times Bold Itatic font, with white (ffffff) text on
// a deep blue (000080) background
c->addTitle("Simple Gantt Chart Demo", "timesbi.ttf", 15, 0xffffff)->setBackground(0x000080);
// 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(Chart::chartTime(2004, 8, 16), Chart::chartTime(2004, 11, 22), 86400 *
7);
// 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, (int)(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);
// Add a green (33ff33) box-whisker layer showing the box only.
c->addBoxWhiskerLayer(DoubleArray(startDate, (int)(sizeof(startDate) / sizeof(startDate[0]))),
DoubleArray(endDate, (int)(sizeof(endDate) / sizeof(endDate[0]))), DoubleArray(),
DoubleArray(), DoubleArray(), 0x00cc00, Chart::SameAsMainColor, Chart::SameAsMainColor);
// Output the chart
c->makeChart("gantt.png");
//free up resources
delete c;
return 0;
} |