/*
 * An example showing all 48 default chart styles available in Excel 2007
 * using the libxlsxwriter library. Note, these styles are not the same as the
 * styles available in Excel 2013.
 *
 * Copyright 2014-2021, John McNamara, jmcnamara@cpan.org
 *
 */

#include "xlsxwriter.h"


int main() {

    int chart_types[]    = {LXW_CHART_COLUMN, LXW_CHART_AREA, LXW_CHART_LINE, LXW_CHART_PIE};
    const char *chart_names[]  = {"Column", "Area", "Line", "Pie"};
    char chart_title[32] = {0};
    int row_num, col_num, chart_num, style_num;
    lxw_worksheet *worksheet;
    lxw_chart *chart;

    lxw_workbook  *workbook  = workbook_new("chart_styles.xlsx");


    for (chart_num = 0; chart_num < 4; chart_num++) {

        /* Add a worksheet for each chart type. */
        worksheet = workbook_add_worksheet(workbook, chart_names[chart_num]);
        worksheet_set_zoom(worksheet, 30);


        /* Create 48 charts, each with a different style. */
        style_num = 1;
        for (row_num = 0; row_num < 90; row_num += 15) {

            for (col_num = 0; col_num < 64; col_num += 8) {

                chart = workbook_add_chart(workbook, chart_types[chart_num]);
                snprintf(chart_title, 32, "Style %d", style_num);

                chart_add_series(chart, NULL, "=Data!$A$1:$A$6");
                chart_title_set_name(chart, chart_title);
                chart_set_style(chart, style_num);

                worksheet_insert_chart(worksheet, row_num, col_num, chart);

                style_num++;
            }
        }
    }

    /* Create a worksheet with data for the charts. */
    worksheet = workbook_add_worksheet(workbook, "Data");
    worksheet_write_number(worksheet, 0, 0, 10, NULL);
    worksheet_write_number(worksheet, 1, 0, 40, NULL);
    worksheet_write_number(worksheet, 2, 0, 50, NULL);
    worksheet_write_number(worksheet, 3, 0, 20, NULL);
    worksheet_write_number(worksheet, 4, 0, 10, NULL);
    worksheet_write_number(worksheet, 5, 0, 50, NULL);

    return workbook_close(workbook);
}