#include "chartdir.h"
int main(int argc, char *argv[])
{
// The data for the bar chart
double data[] = {1350, 1600, 1950, 2300, 2700};
// The labels for the bar chart
const char *labels[] = {"2001", "2002", "2003", "2004", "2005"};
// The colors for the bars
int colors[] = {0xcc0000, 0x66aaee, 0xeebb22, 0xcccccc, 0xcc88ff};
// Create a PieChart object of size 600 x 380 pixels.
XYChart *c = new XYChart(600, 380);
// Use the white on black palette, which means the default text and line colors
// are white
c->setColors(Chart::whiteOnBlackPalette);
// Use a vertical gradient color from blue (0000cc) to deep blue (000044) as
// background. Use rounded corners of 30 pixels radius for the top-left and
// bottom-right corners.
c->setBackground(c->linearGradientColor(0, 0, 0, c->getHeight(), 0x0000cc,
0x000044));
c->setRoundedFrame(0xffffff, 30, 0, 30, 0);
// Add a title using 18 pts Times New Roman Bold Italic font. Add 6 pixels top
// and bottom margins to the title.
TextBox *title = c->addTitle("Annual Revenue for Star Tech", "timesbi.ttf", 18);
title->setMargin(0, 0, 6, 6);
// Add a separator line in white color just under the title
c->addLine(20, title->getHeight(), c->getWidth() - 21, title->getHeight(),
0xffffff);
// Tentatively set the plotarea at (70, 80) and of 480 x 240 pixels in size. Use
// transparent border and white grid lines
c->setPlotArea(70, 80, 480, 240, -1, -1, Chart::Transparent, 0xffffff);
// Swap the axis so that the bars are drawn horizontally
c->swapXY();
// Add a multi-color bar chart layer using the supplied data. Use bar gradient
// lighting with the light intensity from 0.75 to 2.0
c->addBarLayer(DoubleArray(data, (int)(sizeof(data) / sizeof(data[0]))),
IntArray(colors, (int)(sizeof(colors) / sizeof(colors[0]))))->setBorderColor(
Chart::Transparent, Chart::barLighting(0.75, 2.0));
// Set the labels on the x axis.
c->xAxis()->setLabels(StringArray(labels, (int)(sizeof(labels) / sizeof(labels[0]
))));
// Show the same scale on the left and right y-axes
c->syncYAxis();
// Set the bottom y-axis title using 10pt Arial Bold font
c->yAxis()->setTitle("USD (millions)", "arialbd.ttf", 10);
// Set y-axes to transparent
c->yAxis()->setColors(Chart::Transparent);
c->yAxis2()->setColors(Chart::Transparent);
// Disable ticks on the x-axis by setting the tick color to transparent
c->xAxis()->setTickColor(Chart::Transparent);
// Set the label styles of all axes to 8pt Arial Bold font
c->xAxis()->setLabelStyle("arialbd.ttf", 8);
c->yAxis()->setLabelStyle("arialbd.ttf", 8);
c->yAxis2()->setLabelStyle("arialbd.ttf", 8);
// Adjust the plot area size, such that the bounding box (inclusive of axes) is
// 30 pixels from the left edge, 25 pixels below the title, 50 pixels from the
// right edge, and 25 pixels from the bottom edge.
c->packPlotArea(30, title->getHeight() + 25, c->getWidth() - 50, c->getHeight() -
25);
// Output the chart
c->makeChart("gradientbar.png");
//free up resources
delete c;
return 0;
} |