/* ====================================================================
- Licensed to the Apache Software Foundation (ASF) under one or more
- contributor license agreements. See the NOTICE file distributed with
- this work for additional information regarding copyright ownership.
- The ASF licenses this file to You under the Apache License, Version 2.0
- (the "License"); you may not use this file except in compliance with
- the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-==================================================================== */
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements. See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to You under the Apache License, Version 2.0
+(the "License"); you may not use this file except in compliance with
+the License. You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+==================================================================== */
package org.apache.poi.xssf.usermodel.examples;
import java.io.FileOutputStream;
import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.*;
+import org.openxmlformats.schemas.spreadsheetml.x2006.main.impl.CTRowImpl;
/**
* Shows how various alignment options work.
+ *
+ * Modified by Cristian Petrula, Romania on May 26, 2010
+ * New method was added centerAcrossSelection to center a column content over
+ * one selection using ALIGN_CENTER_SELECTION
+ * To create this method example was change for XSSF only and the previous
+ * AligningCells.java example has been moved into the SS examples folder.
*/
public class AligningCells {
- public static void main(String[] args) throws IOException {
- Workbook wb = new XSSFWorkbook(); //or new HSSFWorkbook();
+ public static void main(String[] args) throws IOException {
+ XSSFWorkbook wb = new XSSFWorkbook();
- Sheet sheet = wb.createSheet();
- Row row = sheet.createRow((short) 2);
+ XSSFSheet sheet = wb.createSheet();
+ XSSFRow row = sheet.createRow((short) 2);
row.setHeightInPoints(30);
for (int i = 0; i < 8; i++) {
//column width is set in units of 1/256th of a character width
- sheet.setColumnWidth(i, 256*15);
+ sheet.setColumnWidth(i, 256 * 15);
}
createCell(wb, row, (short) 0, XSSFCellStyle.ALIGN_CENTER, XSSFCellStyle.VERTICAL_BOTTOM);
createCell(wb, row, (short) 5, XSSFCellStyle.ALIGN_LEFT, XSSFCellStyle.VERTICAL_TOP);
createCell(wb, row, (short) 6, XSSFCellStyle.ALIGN_RIGHT, XSSFCellStyle.VERTICAL_TOP);
+ //center text over B4, C4, D4
+ row = sheet.createRow((short) 3);
+ centerAcrossSelection(wb, row, (short) 1, (short) 3, XSSFCellStyle.VERTICAL_CENTER);
+
// Write the output to a file
FileOutputStream fileOut = new FileOutputStream("xssf-align.xlsx");
wb.write(fileOut);
* @param column the column number to create the cell in
* @param halign the horizontal alignment for the cell.
*/
- private static void createCell(Workbook wb, Row row, short column, short halign, short valign) {
- Cell cell = row.createCell(column);
+ private static void createCell(XSSFWorkbook wb, XSSFRow row, short column,
+ short halign, short valign) {
+ XSSFCell cell = row.createCell(column);
cell.setCellValue(new XSSFRichTextString("Align It"));
CellStyle cellStyle = wb.createCellStyle();
cellStyle.setAlignment(halign);
cellStyle.setVerticalAlignment(valign);
cell.setCellStyle(cellStyle);
}
-}
+
+ /**
+ * Center a text over multiple columns using ALIGN_CENTER_SELECTION
+ *
+ * @param wb the workbook
+ * @param row the row to create the cell in
+ * @param start_column the column number to create the cell in and where the selection starts
+ * @param end_column the column number where the selection ends
+ * @param valign the horizontal alignment for the cell.
+ *
+ * @author Cristian Petrula, Romania
+ */
+ private static void centerAcrossSelection(XSSFWorkbook wb, XSSFRow row,
+ short start_column, short end_column, short valign) {
+
+ // Create cell style with ALIGN_CENTER_SELECTION
+ XSSFCellStyle cellStyle = wb.createCellStyle();
+ cellStyle.setAlignment(XSSFCellStyle.ALIGN_CENTER_SELECTION);
+ cellStyle.setVerticalAlignment(valign);
+
+ // Create cells over the selected area
+ for (int i = start_column; i <= end_column; i++) {
+ XSSFCell cell = row.createCell(i);
+ cell.setCellStyle(cellStyle);
+ }
+
+ // Set value to the first cell
+ XSSFCell cell = row.getCell(start_column);
+ cell.setCellValue(new XSSFRichTextString("Align It"));
+
+ // Make the selection
+ CTRowImpl ctRow = (CTRowImpl) row.getCTRow();
+ List spanList = new ArrayList();
+
+ // Add object with format start_coll:end_coll. For example 1:3 will span from
+ // cell 1 to cell 3, where the column index starts with 0
+ //
+ // You can add multiple spans for one row
+ Object span = start_column + ":" + end_column;
+ spanList.add(span);
+
+ //add spns to the row
+ ctRow.setSpans(spanList);
+ }
+}
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