High-Low-Open-Close Chart

The following is the command line version of the code in "cppdemo/hloc". The MFC version of the code is in "mfcdemo/mfcdemo". The Qt Widgets version of the code is in "qtdemo/qtdemo". The QML/Qt Quick version of the code is in "qmldemo/qmldemo".
#include "chartdir.h"

int main(int argc, char *argv[])
{
    //
    // Sample data for the HLOC chart.
    //
    double highData[] = {2043, 2039, 2076, 2064, 2048, 2058, 2070, 2033, 2027, 2029, 2071, 2085,
        2034, 2031, 2056, 2128, 2180, 2183, 2192, 2213, 2230, 2281, 2272};
    const int highData_size = (int)(sizeof(highData)/sizeof(*highData));

    double lowData[] = {1931, 1921, 1985, 2028, 1986, 1994, 1999, 1958, 1943, 1944, 1962, 2011,
        1975, 1962, 1928, 2059, 2112, 2103, 2151, 2127, 2123, 2152, 2212};
    const int lowData_size = (int)(sizeof(lowData)/sizeof(*lowData));

    double openData[] = {2000, 1957, 1993, 2037, 2018, 2021, 2045, 2009, 1959, 1985, 2008, 2048,
        2006, 2010, 1971, 2080, 2116, 2137, 2170, 2172, 2171, 2191, 2240};
    const int openData_size = (int)(sizeof(openData)/sizeof(*openData));

    double closeData[] = {1950, 1991, 2026, 2029, 2004, 2053, 2011, 1962, 1987, 2019, 2040, 2016,
        1996, 1985, 2006, 2113, 2142, 2167, 2158, 2201, 2188, 2231, 2242};
    const int closeData_size = (int)(sizeof(closeData)/sizeof(*closeData));

    // The labels for the HLOC chart
    const char* labels[] = {"Mon 1", "Tue 2", "Wed 3", "Thu 4", "Fri 5", "Mon 8", "Tue 9", "Wed 10",
        "Thu 11", "Fri 12", "Mon 15", "Tue 16", "Wed 17", "Thu 18", "Fri 19", "Mon 22", "Tue 23",
        "Wed 24", "Thu 25", "Fri 26", "Mon 29", "Tue 30", "Wed 31"};
    const int labels_size = (int)(sizeof(labels)/sizeof(*labels));

    // Create a XYChart object of size 600 x 350 pixels
    XYChart* c = new XYChart(600, 350);

    // Set the plotarea at (50, 25) and of size 500 x 250 pixels. Enable both the horizontal and
    // vertical grids by setting their colors to grey (0xc0c0c0)
    c->setPlotArea(50, 25, 500, 250)->setGridColor(0xc0c0c0, 0xc0c0c0);

    // Add a title to the chart
    c->addTitle("Universal Stock Index on Jan 2001");

    // Add a custom text at (50, 25) (the upper left corner of the plotarea). Use 12pt Arial
    // Bold/blue (4040c0) as the font.
    c->addText(50, 25, "(c) Global XYZ ABC Company", "Arial Bold", 12, 0x4040c0);

    // Add a title to the x axis
    c->xAxis()->setTitle("Jan 2001");

    // Set the labels on the x axis. Rotate the labels by 45 degrees.
    c->xAxis()->setLabels(StringArray(labels, labels_size))->setFontAngle(45);

    // Add a title to the y axis
    c->yAxis()->setTitle("Universal Stock Index");

    // Draw the y axis on the right hand side of the plot area
    c->setYAxisOnRight(true);

    // Add a HLOC layer to the chart using green (008000) for up days and red (ff0000) for down days
    HLOCLayer* layer = c->addHLOCLayer(DoubleArray(highData, highData_size), DoubleArray(lowData,
        lowData_size), DoubleArray(openData, openData_size), DoubleArray(closeData, closeData_size),
        0x008000, 0xff0000);

    // Set the line width to 2 pixels
    layer->setLineWidth(2);

    // Output the chart
    c->makeChart("hloc.png");

    //free up resources
    delete c;

    return 0;
}