libxlsxwriter/examples/chart_pie.c
2016-05-23 22:42:27 +01:00

65 lines
1.9 KiB
C

/*
* An example of creating an Excel pie chart using the libxlsxwriter library.
*
* Copyright 2014-2016, John McNamara, jmcnamara@cpan.org
*
*/
#include "xlsxwriter.h"
/*
* Write some data to the worksheet.
*/
void write_worksheet_data(lxw_worksheet *worksheet, lxw_format *bold) {
worksheet_write_string(worksheet, CELL("A1"), "Category", bold);
worksheet_write_string(worksheet, CELL("A2"), "Apple", NULL);
worksheet_write_string(worksheet, CELL("A3"), "Cherry", NULL);
worksheet_write_string(worksheet, CELL("A4"), "Pecan", NULL);
worksheet_write_string(worksheet, CELL("B1"), "Values", bold);
worksheet_write_number(worksheet, CELL("B2"), 60, NULL);
worksheet_write_number(worksheet, CELL("B3"), 30, NULL);
worksheet_write_number(worksheet, CELL("B4"), 10, NULL);
}
/*
* Create a worksheet with examples charts.
*/
int main() {
lxw_workbook *workbook = new_workbook("chart_pie.xlsx");
lxw_worksheet *worksheet = workbook_add_worksheet(workbook, NULL);
lxw_chart_series *series;
/* Add a bold format to use to highlight the header cells. */
lxw_format *bold = workbook_add_format(workbook);
format_set_bold(bold);
/* Write some data for the chart. */
write_worksheet_data(worksheet, bold);
/*
* Create a pie chart.
*/
lxw_chart *chart = workbook_add_chart(workbook, LXW_CHART_PIE);
/* Add the first series to the chart. */
series = chart_add_series(chart, "=Sheet1!$A$2:$A$4", "=Sheet1!$B$2:$B$4");
/* Set the name for the series instead of the default "Series 1". */
chart_series_set_name(series, "Pie sales data");
/* Add a chart title. */
chart_title_set_name(chart, "Popular Pie Types");
/* Set an Excel chart style. */
chart_set_style(chart, 10);
/* Insert the chart into the worksheet. */
worksheet_insert_chart(worksheet, CELL("D2"), chart);
return workbook_close(workbook);
}