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Added boolean flag to turn on use of merged columns in autosize

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@655282 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Yegor Kozlov 2008-05-11 09:03:24 +00:00
parent c1a11a8b7c
commit 85feeabf9d
1 changed files with 41 additions and 18 deletions
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59
src/java/org/apache/poi/hssf/usermodel/HSSFSheet.java
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@ -1685,6 +1685,23 @@ public final class HSSFSheet {
* @param column the column index * @param column the column index
*/ */
public void autoSizeColumn(short column) { public void autoSizeColumn(short column) {
autoSizeColumn(column, false);
}
/**
* Adjusts the column width to fit the contents.
*
* This process can be relatively slow on large sheets, so this should
* normally only be called once per column, at the end of your
* processing.
*
* You can specify whether the content of merged cells should be considered or ignored.
* Default is to ignore merged cells.
*
* @param column the column index
* @param useMergedCells whether to use the contents of merged cells when calculating the width of the column
*/
public void autoSizeColumn(short column, boolean useMergedCells) {
AttributedString str; AttributedString str;
TextLayout layout; TextLayout layout;
/** /**
@ -1693,13 +1710,13 @@ public final class HSSFSheet {
* '0' looks to be a good choice. * '0' looks to be a good choice.
*/ */
char defaultChar = '0'; char defaultChar = '0';
/** /**
* This is the multiple that the font height is scaled by when determining the * This is the multiple that the font height is scaled by when determining the
* boundary of rotated text. * boundary of rotated text.
*/ */
double fontHeightMultiple = 2.0; double fontHeightMultiple = 2.0;
FontRenderContext frc = new FontRenderContext(null, true, true); FontRenderContext frc = new FontRenderContext(null, true, true);
HSSFWorkbook wb = new HSSFWorkbook(book); HSSFWorkbook wb = new HSSFWorkbook(book);
@ -1711,21 +1728,27 @@ public final class HSSFSheet {
int defaultCharWidth = (int)layout.getAdvance(); int defaultCharWidth = (int)layout.getAdvance();
double width = -1; double width = -1;
rows:
for (Iterator it = rowIterator(); it.hasNext();) { for (Iterator it = rowIterator(); it.hasNext();) {
HSSFRow row = (HSSFRow) it.next(); HSSFRow row = (HSSFRow) it.next();
HSSFCell cell = row.getCell(column); HSSFCell cell = row.getCell(column);
boolean isCellInMergedRegion = false; if (cell == null) continue;
for (int i = 0 ; i < getNumMergedRegions() && ! isCellInMergedRegion; i++) {
isCellInMergedRegion = getMergedRegionAt(i).contains(row.getRowNum(), column);
}
if (cell == null | isCellInMergedRegion) continue; int colspan = 1;
for (int i = 0 ; i < getNumMergedRegions(); i++) {
if (getMergedRegionAt(i).contains(row.getRowNum(), column)) {
if (!useMergedCells) {
// If we're not using merged cells, skip this one and move on to the next.
continue rows;
}
cell = row.getCell(getMergedRegionAt(i).getColumnFrom());
colspan = 1+ getMergedRegionAt(i).getColumnTo() - getMergedRegionAt(i).getColumnFrom();
}
}
HSSFCellStyle style = cell.getCellStyle(); HSSFCellStyle style = cell.getCellStyle();
HSSFFont font = wb.getFontAt(style.getFontIndex()); HSSFFont font = wb.getFontAt(style.getFontIndex());
//the number of spaces to indent the text in the cell
int indention = style.getIndention();
if (cell.getCellType() == HSSFCell.CELL_TYPE_STRING) { if (cell.getCellType() == HSSFCell.CELL_TYPE_STRING) {
HSSFRichTextString rt = cell.getRichStringCellValue(); HSSFRichTextString rt = cell.getRichStringCellValue();
@ -1758,9 +1781,9 @@ public final class HSSFSheet {
trans.concatenate( trans.concatenate(
AffineTransform.getScaleInstance(1, fontHeightMultiple) AffineTransform.getScaleInstance(1, fontHeightMultiple)
); );
width = Math.max(width, layout.getOutline(trans).getBounds().getWidth() / defaultCharWidth + indention); width = Math.max(width, ((layout.getOutline(trans).getBounds().getWidth() / colspan) / defaultCharWidth) + cell.getCellStyle().getIndention());
} else { } else {
width = Math.max(width, layout.getBounds().getWidth() / defaultCharWidth + indention); width = Math.max(width, ((layout.getBounds().getWidth() / colspan) / defaultCharWidth) + cell.getCellStyle().getIndention());
} }
} }
} else { } else {
@ -1803,19 +1826,19 @@ public final class HSSFSheet {
trans.concatenate( trans.concatenate(
AffineTransform.getScaleInstance(1, fontHeightMultiple) AffineTransform.getScaleInstance(1, fontHeightMultiple)
); );
width = Math.max(width, layout.getOutline(trans).getBounds().getWidth() / defaultCharWidth + indention); width = Math.max(width, ((layout.getOutline(trans).getBounds().getWidth() / colspan) / defaultCharWidth) + cell.getCellStyle().getIndention());
} else { } else {
width = Math.max(width, layout.getBounds().getWidth() / defaultCharWidth + indention); width = Math.max(width, ((layout.getBounds().getWidth() / colspan) / defaultCharWidth) + cell.getCellStyle().getIndention());
} }
} }
} }
if (width != -1) { }
if (width > Short.MAX_VALUE) { //calculated width can be greater that Short.MAX_VALUE! if (width != -1) {
width = Short.MAX_VALUE; if (width > Short.MAX_VALUE) { //width can be bigger that Short.MAX_VALUE!
} width = Short.MAX_VALUE;
sheet.setColumnWidth(column, (short) (width * 256));
} }
sheet.setColumnWidth(column, (short) (width * 256));
} }
} }