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Added Christian's Centre Across Selection code. 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@948709 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Mark Beardsley 2010-05-27 08:06:47 +00:00
parent 63793d2fa5
commit 3a19c5bc19
1 changed files with 78 additions and 21 deletions
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99
src/examples/src/org/apache/poi/xssf/usermodel/examples/AligningCells.java
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@ -1,42 +1,50 @@
/* ====================================================================
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
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
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.
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);
@ -47,6 +55,10 @@ public class AligningCells {
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);
@ -61,12 +73,57 @@ public class AligningCells {
* @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);
}
}