ChartDirector 6.0 (C++ Edition)

Text Styles and Colors




This example demonstrates various text styles, text colors, background colors and text box border effects.

In the chart above, 3 different pattern colors (wallpapers) are used for the chart background, legend box background and chart title background. In addition, the chart title, sector labels, and legends all have different fonts, text colors, background colors, and border styles.

Source Code Listing

[The following code is available in "cppdemo/fontpie". A MFC version of the code is available in "mfcdemo/mfcdemo" (Windows edition only). A QT version of the code is available in "qtdemo/qtdemo".]
#include "chartdir.h"

int main(int argc, char *argv[])
{
    // The data for the pie chart
    double data[] = {25, 18, 15, 12, 8, 30, 35};

    // The labels for the pie chart
    const char *labels[] = {"Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities",
        "Production"};

    // Create a PieChart object of size 480 x 300 pixels
    PieChart *c = new PieChart(480, 300);

    // Use a blue marble pattern as the background wallpaper, with a black border, and 1 pixel 3D
    // border effect
    c->setBackground(c->patternColor("marble.png"), 0x000000, 1);

    // Set the center of the pie at (150, 150) and the radius to 100 pixels
    c->setPieSize(150, 150, 100);

    // Add a title to the pie chart using Times Bold Italic/15 points/deep blue (0x000080) as font,
    // with a wood pattern as the title background
    c->addTitle("Project Cost Breakdown", "timesbi.ttf", 15, 0x000080)->setBackground(
        c->patternColor("wood.png"));

    // Draw the pie in 3D
    c->set3D();

    // Add a legend box using Arial Bold Italic/11 points font. Use a pink marble pattern as the
    // background wallpaper, with a 1 pixel 3D border. The legend box is top-right aligned relative
    // to the point (465, 70)
    LegendBox *b = c->addLegend(465, 70, true, "arialbi.ttf", 11);
    b->setBackground(c->patternColor("marble2.png"), Chart::Transparent, 1);
    b->setAlignment(Chart::TopRight);

    // Set the default font for all sector labels to Arial Bold/8pt/dark green (0x008000).
    c->setLabelStyle("arialbd.ttf", 8, 0x008000);

    // Set the pie data and the pie labels
    c->setData(DoubleArray(data, (int)(sizeof(data) / sizeof(data[0]))), StringArray(labels, (int)(
        sizeof(labels) / sizeof(labels[0]))));

    // Explode the 3rd sector
    c->setExplode(2, 40);

    // Use Arial Bold/12pt/red as label font for the 3rd sector
    c->sector(2)->setLabelStyle("arialbd.ttf", 12, 0xff0000);

    // Use Arial/8pt/deep blue as label font for the 5th sector. Add a background box using the
    // sector fill color (SameAsMainColor), with a black (0x000000) edge and 2 pixel 3D border.
    c->sector(4)->setLabelStyle("arial.ttf", 8, 0x000080)->setBackground(Chart::SameAsMainColor,
        0x000000, 2);

    // Use Arial Italic/8pt/light red (0xff9999) as label font for the 6th sector. Add a dark blue
    // (0x000080) background box with a 2 pixel 3D border.
    c->sector(0)->setLabelStyle("ariali.ttf", 8, 0xff9999)->setBackground(0x000080,
        Chart::Transparent, 2);

    // Use Times Bold Italic/8pt/deep green (0x008000) as label font for 7th sector. Add a yellow
    // (0xFFFF00) background box with a black (0x000000) edge.
    c->sector(6)->setLabelStyle("timesbi.ttf", 8, 0x008000)->setBackground(0xffff00, 0x000000);

    // Output the chart
    c->makeChart("fontpie.jpg");

    //free up resources
    delete c;
    return 0;
}