Apache
/
poi
mirror of https://github.com/apache/poi.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

applied patch from Bugzilla 52314: SheetUtil.getColumnWidth could be more flexible 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1215079 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Yegor Kozlov 2011-12-16 10:01:02 +00:00
parent 40e7917560
commit 97a447bef4
2 changed files with 157 additions and 92 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/documentation/content/xdocs/status.xml
View File

@ -34,6 +34,7 @@
<changes>
<release version="3.8-beta6" date="2012-??-??">
<action dev="poi-developers" type="fix">52314 - enhanced SheetUtil.getColumnWidth</action>
</release>
<release version="3.8-beta5" date="2011-12-17">
<action dev="poi-developers" type="fix">52204 - Deprecated XSSFWorkbook(String path) constructor because it does not close underlying .zip file</action>

110
src/java/org/apache/poi/ss/util/SheetUtil.java
View File

@ -75,34 +75,20 @@ public class SheetUtil {
private static final FontRenderContext fontRenderContext = new FontRenderContext(null, true, true);
/**
* Compute width of a column and return the result
* Compute width of a single cell
*
* @param sheet the sheet to calculate
* @param column 0-based index of the column
* @param cell the cell whose width is to be calculated
* @param defaultCharWidth the width of a single character
* @param formatter formatter used to prepare the text to be measured
* @param useMergedCells whether to use merged cells
* @return the width in pixels
*/
public static double getColumnWidth(Sheet sheet, int column, boolean useMergedCells){
AttributedString str;
TextLayout layout;
public static double getCellWidth(Cell cell, int defaultCharWidth, DataFormatter formatter, boolean useMergedCells) {
Sheet sheet = cell.getSheet();
Workbook wb = sheet.getWorkbook();
DataFormatter formatter = new DataFormatter();
Font defaultFont = wb.getFontAt((short) 0);
str = new AttributedString(String.valueOf(defaultChar));
copyAttributes(defaultFont, str, 0, 1);
layout = new TextLayout(str.getIterator(), fontRenderContext);
int defaultCharWidth = (int)layout.getAdvance();
double width = -1;
rows:
for (Row row : sheet) {
Cell cell = row.getCell(column);
if (cell == null) {
continue;
}
Row row = cell.getRow();
int column = cell.getColumnIndex();
int colspan = 1;
for (int i = 0 ; i < sheet.getNumMergedRegions(); i++) {
@ -110,7 +96,7 @@ public class SheetUtil {
if (containsCell(region, row.getRowNum(), column)) {
if (!useMergedCells) {
// If we're not using merged cells, skip this one and move on to the next.
continue rows;
return -1;
}
cell = row.getCell(region.getFirstColumn());
colspan = 1 + region.getLastColumn() - region.getFirstColumn();
@ -125,6 +111,10 @@ public class SheetUtil {
Font font = wb.getFontAt(style.getFontIndex());
AttributedString str;
TextLayout layout;
double width = -1;
if (cellType == Cell.CELL_TYPE_STRING) {
RichTextString rt = cell.getRichStringCellValue();
String[] lines = rt.getString().split("\\n");
@ -192,7 +182,81 @@ public class SheetUtil {
}
}
}
return width;
}
/**
* Compute width of a column and return the result
*
* @param sheet the sheet to calculate
* @param column 0-based index of the column
* @param useMergedCells whether to use merged cells
* @return the width in pixels
*/
public static double getColumnWidth(Sheet sheet, int column, boolean useMergedCells){
AttributedString str;
TextLayout layout;
Workbook wb = sheet.getWorkbook();
DataFormatter formatter = new DataFormatter();
Font defaultFont = wb.getFontAt((short) 0);
str = new AttributedString(String.valueOf(defaultChar));
copyAttributes(defaultFont, str, 0, 1);
layout = new TextLayout(str.getIterator(), fontRenderContext);
int defaultCharWidth = (int)layout.getAdvance();
double width = -1;
for (Row row : sheet) {
Cell cell = row.getCell(column);
if (cell == null) {
continue;
}
double cellWidth = getCellWidth(cell, defaultCharWidth, formatter, useMergedCells);
width = Math.max(width, cellWidth);
}
return width;
}
/**
* Compute width of a column based on a subset of the rows and return the result
*
* @param sheet the sheet to calculate
* @param column 0-based index of the column
* @param useMergedCells whether to use merged cells
* @param firstRow 0-based index of the first row to consider (inclusive)
* @param lastRow 0-based index of the last row to consider (inclusive)
* @return the width in pixels
*/
public static double getColumnWidth(Sheet sheet, int column, boolean useMergedCells, int firstRow, int lastRow){
AttributedString str;
TextLayout layout;
Workbook wb = sheet.getWorkbook();
DataFormatter formatter = new DataFormatter();
Font defaultFont = wb.getFontAt((short) 0);
str = new AttributedString(String.valueOf(defaultChar));
copyAttributes(defaultFont, str, 0, 1);
layout = new TextLayout(str.getIterator(), fontRenderContext);
int defaultCharWidth = (int)layout.getAdvance();
double width = -1;
for (int rowIdx = firstRow; rowIdx <= lastRow; ++rowIdx) {
Row row = sheet.getRow(rowIdx);
if( row != null ) {
Cell cell = row.getCell(column);
if (cell == null) {
continue;
}
double cellWidth = getCellWidth(cell, defaultCharWidth, formatter, useMergedCells);
width = Math.max(width, cellWidth);
}
}
return width;
}