Java tutorial
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See the License for the specific language governing permissions and limitations under the License. ==================================================================== */ package poi.xssf.usermodel.examples; import org.apache.poi.ss.usermodel.*; import org.apache.poi.ss.util.CellRangeAddress; import org.apache.poi.xssf.usermodel.*; import java.io.FileOutputStream; import java.util.Calendar; import java.util.HashMap; import java.util.Map; /** * A monthly calendar created using Apache POI. Each month is on a separate sheet. * This is a version of org.apache.poi.ss.examples.CalendarDemo that demonstrates * some XSSF features not avaiable when using common HSSF-XSSF interfaces. * * <pre> * Usage: * CalendarDemo <year> * </pre> * * @author Yegor Kozlov */ public class CalendarDemo { private static final String[] days = { "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" }; private static final String[] months = { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" }; public static void main(String[] args) throws Exception { Calendar calendar = Calendar.getInstance(); if (args.length > 0) calendar.set(Calendar.YEAR, Integer.parseInt(args[0])); int year = calendar.get(Calendar.YEAR); XSSFWorkbook wb = new XSSFWorkbook(); Map<String, XSSFCellStyle> styles = createStyles(wb); for (int month = 0; month < 12; month++) { calendar.set(Calendar.MONTH, month); calendar.set(Calendar.DAY_OF_MONTH, 1); //create a sheet for each month XSSFSheet sheet = wb.createSheet(months[month]); //turn off gridlines sheet.setDisplayGridlines(false); sheet.setPrintGridlines(false); XSSFPrintSetup printSetup = sheet.getPrintSetup(); printSetup.setOrientation(PrintOrientation.LANDSCAPE); sheet.setFitToPage(true); sheet.setHorizontallyCenter(true); //the header row: centered text in 48pt font XSSFRow headerRow = sheet.createRow(0); headerRow.setHeightInPoints(80); XSSFCell titleCell = headerRow.createCell(0); titleCell.setCellValue(months[month] + " " + year); titleCell.setCellStyle(styles.get("title")); sheet.addMergedRegion(CellRangeAddress.valueOf("$A$1:$N$1")); //header with month titles XSSFRow monthRow = sheet.createRow(1); for (int i = 0; i < days.length; i++) { //for compatibility with HSSF we have to set column width in units of 1/256th of a character width sheet.setColumnWidth(i * 2, 5 * 256); //the column is 5 characters wide sheet.setColumnWidth(i * 2 + 1, 13 * 256); //the column is 13 characters wide sheet.addMergedRegion(new CellRangeAddress(1, 1, i * 2, i * 2 + 1)); XSSFCell monthCell = monthRow.createCell(i * 2); monthCell.setCellValue(days[i]); monthCell.setCellStyle(styles.get("month")); } int cnt = 1, day = 1; int rownum = 2; for (int j = 0; j < 6; j++) { XSSFRow row = sheet.createRow(rownum++); row.setHeightInPoints(100); for (int i = 0; i < days.length; i++) { XSSFCell dayCell_1 = row.createCell(i * 2); XSSFCell dayCell_2 = row.createCell(i * 2 + 1); int day_of_week = calendar.get(Calendar.DAY_OF_WEEK); if (cnt >= day_of_week && calendar.get(Calendar.MONTH) == month) { dayCell_1.setCellValue(day); calendar.set(Calendar.DAY_OF_MONTH, ++day); if (i == 0 || i == days.length - 1) { dayCell_1.setCellStyle(styles.get("weekend_left")); dayCell_2.setCellStyle(styles.get("weekend_right")); } else { dayCell_1.setCellStyle(styles.get("workday_left")); dayCell_2.setCellStyle(styles.get("workday_right")); } } else { dayCell_1.setCellStyle(styles.get("grey_left")); dayCell_2.setCellStyle(styles.get("grey_right")); } cnt++; } if (calendar.get(Calendar.MONTH) > month) break; } } // Write the output to a file FileOutputStream out = new FileOutputStream("calendar-" + year + ".xlsx"); wb.write(out); out.close(); } /** * cell styles used for formatting calendar sheets */ private static Map<String, XSSFCellStyle> createStyles(XSSFWorkbook wb) { Map<String, XSSFCellStyle> styles = new HashMap<String, XSSFCellStyle>(); XSSFCellStyle style; XSSFFont titleFont = wb.createFont(); titleFont.setFontHeightInPoints((short) 48); titleFont.setColor(new XSSFColor(new java.awt.Color(39, 51, 89))); style = wb.createCellStyle(); style.setAlignment(HorizontalAlignment.CENTER); style.setVerticalAlignment(VerticalAlignment.CENTER); style.setFont(titleFont); styles.put("title", style); XSSFFont monthFont = wb.createFont(); monthFont.setFontHeightInPoints((short) 12); monthFont.setColor(new XSSFColor(new java.awt.Color(255, 255, 255))); monthFont.setBold(true); style = wb.createCellStyle(); style.setAlignment(HorizontalAlignment.CENTER); style.setVerticalAlignment(VerticalAlignment.CENTER); style.setFillForegroundColor(new XSSFColor(new java.awt.Color(39, 51, 89))); style.setFillPattern(FillPatternType.SOLID_FOREGROUND); style.setFont(monthFont); styles.put("month", style); XSSFFont dayFont = wb.createFont(); dayFont.setFontHeightInPoints((short) 14); dayFont.setBold(true); style = wb.createCellStyle(); style.setAlignment(HorizontalAlignment.LEFT); style.setVerticalAlignment(VerticalAlignment.TOP); style.setFillForegroundColor(new XSSFColor(new java.awt.Color(228, 232, 243))); style.setFillPattern(FillPatternType.SOLID_FOREGROUND); style.setBorderLeft(BorderStyle.THIN); style.setLeftBorderColor(new XSSFColor(new java.awt.Color(39, 51, 89))); style.setBorderBottom(BorderStyle.THIN); style.setBottomBorderColor(new XSSFColor(new java.awt.Color(39, 51, 89))); style.setFont(dayFont); styles.put("weekend_left", style); style = wb.createCellStyle(); style.setAlignment(HorizontalAlignment.CENTER); style.setVerticalAlignment(VerticalAlignment.TOP); style.setFillForegroundColor(new XSSFColor(new java.awt.Color(228, 232, 243))); style.setFillPattern(FillPatternType.SOLID_FOREGROUND); style.setBorderRight(BorderStyle.THIN); style.setRightBorderColor(new XSSFColor(new java.awt.Color(39, 51, 89))); style.setBorderBottom(BorderStyle.THIN); style.setBottomBorderColor(new XSSFColor(new java.awt.Color(39, 51, 89))); styles.put("weekend_right", style); style = wb.createCellStyle(); style.setAlignment(HorizontalAlignment.LEFT); style.setVerticalAlignment(VerticalAlignment.TOP); style.setBorderLeft(BorderStyle.THIN); style.setFillForegroundColor(new XSSFColor(new java.awt.Color(255, 255, 255))); style.setFillPattern(FillPatternType.SOLID_FOREGROUND); style.setLeftBorderColor(new XSSFColor(new java.awt.Color(39, 51, 89))); style.setBorderBottom(BorderStyle.THIN); style.setBottomBorderColor(new XSSFColor(new java.awt.Color(39, 51, 89))); style.setFont(dayFont); styles.put("workday_left", style); style = wb.createCellStyle(); style.setAlignment(HorizontalAlignment.CENTER); style.setVerticalAlignment(VerticalAlignment.TOP); style.setFillForegroundColor(new XSSFColor(new java.awt.Color(255, 255, 255))); style.setFillPattern(FillPatternType.SOLID_FOREGROUND); style.setBorderRight(BorderStyle.THIN); style.setRightBorderColor(new XSSFColor(new java.awt.Color(39, 51, 89))); style.setBorderBottom(BorderStyle.THIN); style.setBottomBorderColor(new XSSFColor(new java.awt.Color(39, 51, 89))); styles.put("workday_right", style); style = wb.createCellStyle(); style.setBorderLeft(BorderStyle.THIN); style.setFillForegroundColor(new XSSFColor(new java.awt.Color(234, 234, 234))); style.setFillPattern(FillPatternType.SOLID_FOREGROUND); style.setBorderBottom(BorderStyle.THIN); style.setBottomBorderColor(new XSSFColor(new java.awt.Color(39, 51, 89))); styles.put("grey_left", style); style = wb.createCellStyle(); style.setFillForegroundColor(new XSSFColor(new java.awt.Color(234, 234, 234))); style.setFillPattern(FillPatternType.SOLID_FOREGROUND); style.setBorderRight(BorderStyle.THIN); style.setRightBorderColor(new XSSFColor(new java.awt.Color(39, 51, 89))); style.setBorderBottom(BorderStyle.THIN); style.setBottomBorderColor(new XSSFColor(new java.awt.Color(39, 51, 89))); styles.put("grey_right", style); return styles; } }