/**
* Calculates the target width. First checks:
* <ol>
* <li>if the attribute or style "width" is found in the given tag and it is not wider than pageWidth - outerWidth, then the
* targetWidth = width value</li>
* <li>if the columnWidths array in total is not wider than pageWidth - outerWidth, then the
* targetWidth = the total of the columnWidths array</li>
* <li>if table's parent is a root tag or table has no parent, then the
* targetWidth = width of the page - outerWidth
* {@link Table#getTableOuterWidth(Tag, float)}.</li>
* </ol>
* If none of the above is true, the width of the table is set to its
* default with the columnWidths array.
*
* @param tag containing attributes and css.
* @param columnWidths float[] containing the widest lines of text found in
* the columns.
* @param outerWidth width needed for margins and borders.
* @param ctx
* @return float the target width of a table.
* @throws NoCustomContextException
*/
private float CalculateTargetWidth(Tag tag, float[] columnWidths, float outerWidth,
IWorkerContext ctx)
{
float targetWidth = 0;
HtmlPipelineContext htmlPipelineContext = GetHtmlPipelineContext(ctx);
float max = htmlPipelineContext.PageSize.Width - outerWidth;
float start = GetTableWidth(columnWidths, 0);
if (tag.Attributes.ContainsKey(CSS.Property.WIDTH) || tag.CSS.ContainsKey(CSS.Property.WIDTH))
{
targetWidth = new WidthCalculator().GetWidth(tag, htmlPipelineContext.GetRootTags(), htmlPipelineContext
.PageSize.Width);
if (targetWidth > max)
{
targetWidth = max;
}
}
else if (start <= max)
{
targetWidth = start;
}
else if (null == tag.Parent ||
(null != tag.Parent && htmlPipelineContext.GetRootTags().Contains(tag.Parent.Name)))
{
targetWidth = max;
}
else /*
* this table is an inner table and width adjustment is done in
* outer table
*/
{
targetWidth = GetTableWidth(columnWidths, outerWidth);
}
return(targetWidth);
}
virtual public void SetUp()
{
body = new Tag("body", new Dictionary <String, String>());
table = new Tag("table", new Dictionary <String, String>());
row = new Tag("tr", new Dictionary <String, String>());
cell = new Tag("td", new Dictionary <String, String>());
config = new HtmlPipelineContext(null);
calc = new WidthCalculator();
LoggerFactory.GetInstance().SetLogger(new SysoLogger(3));
body.AddChild(table);
table.Parent = body;
table.AddChild(row);
row.Parent = table;
row.AddChild(cell);
cell.Parent = row;
}
/*
* (non-Javadoc)
*
* @see
* com.itextpdf.tool.xml.ITagProcessor#endElement(com.itextpdf.tool.xml.Tag,
* java.util.List, com.itextpdf.text.Document)
*/
public override IList <IElement> End(IWorkerContext ctx, Tag tag, IList <IElement> currentContent)
{
try {
bool percentage = false;
String widthValue = null;
tag.CSS.TryGetValue(HTML.Attribute.WIDTH, out widthValue);
if (!tag.CSS.TryGetValue(HTML.Attribute.WIDTH, out widthValue) &&
!tag.Attributes.TryGetValue(HTML.Attribute.WIDTH, out widthValue))
{
widthValue = null;
}
if (widthValue != null && widthValue.Trim().EndsWith("%"))
{
percentage = true;
}
int numberOfColumns = 0;
List <TableRowElement> tableRows = new List <TableRowElement>(currentContent.Count);
IList <IElement> invalidRowElements = new List <IElement>(1);
String repeatHeader;
tag.CSS.TryGetValue(CSS.Property.REPEAT_HEADER, out repeatHeader);
String repeatFooter;
tag.CSS.TryGetValue(CSS.Property.REPEAT_FOOTER, out repeatFooter);
int headerRows = 0;
int footerRows = 0;
foreach (IElement e in currentContent)
{
int localNumCols = 0;
if (e is TableRowElement)
{
TableRowElement tableRowElement = (TableRowElement)e;
foreach (HtmlCell cell in tableRowElement.Content)
{
localNumCols += cell.Colspan;
}
if (localNumCols > numberOfColumns)
{
numberOfColumns = localNumCols;
}
tableRows.Add(tableRowElement);
if (repeatHeader != null && Util.EqualsIgnoreCase(repeatHeader, "yes") && tableRowElement.RowPlace.Equals(TableRowElement.Place.HEADER))
{
headerRows++;
}
if (repeatFooter != null && Util.EqualsIgnoreCase(repeatFooter, "yes") && tableRowElement.RowPlace.Equals(TableRowElement.Place.FOOTER))
{
footerRows++;
}
}
else
{
invalidRowElements.Add(e);
}
}
if (repeatFooter == null || !Util.EqualsIgnoreCase(repeatFooter, "yes"))
{
InsertionSort <TableRowElement>(tableRows, delegate(TableRowElement o1, TableRowElement o2) {
return(o1.RowPlace.Normal.CompareTo(o2.RowPlace.Normal));
});
}
else
{
InsertionSort <TableRowElement>(tableRows, delegate(TableRowElement o1, TableRowElement o2) {
return(o1.RowPlace.Repeated.CompareTo(o2.RowPlace.Repeated));
});
}
PdfPTable table = new PdfPTable(numberOfColumns);
table.HeaderRows = headerRows + footerRows;
table.FooterRows = footerRows;
table.HorizontalAlignment = Element.ALIGN_LEFT;
TableStyleValues styleValues = SetStyleValues(tag);
table.TableEvent = new TableBorderEvent(styleValues);
SetVerticalMargin(table, tag, styleValues, ctx);
WidenLastCell(tableRows, styleValues.HorBorderSpacing);
float[] columnWidths = new float[numberOfColumns];
float[] widestWords = new float[numberOfColumns];
float[] fixedWidths = new float[numberOfColumns];
float[] colspanWidestWords = new float[numberOfColumns];
int[] rowspanValue = new int[numberOfColumns];
float largestColumn = 0;
float largestColspanColumn = 0;
int indexOfLargestColumn = -1;
int indexOfLargestColspanColumn = -1;
// Initial fill of the widths arrays
foreach (TableRowElement row in tableRows)
{
int column = 0;
foreach (HtmlCell cell in row.Content)
{
// check whether the current column should be skipped due to a
// rowspan value of higher cell in this column.
while (rowspanValue[column] > 1)
{
rowspanValue[column] = rowspanValue[column] - 1;
++column;
}
// sets a rowspan counter for current column (counter not
// needed for last column).
if (cell.Rowspan > 1 && column != numberOfColumns - 1)
{
rowspanValue[column] = cell.Rowspan - 1;
}
int colspan = cell.Colspan;
if (cell.FixedWidth != 0)
{
float fixedWidth = cell.FixedWidth + GetCellStartWidth(cell);
fixedWidth /= colspan;
for (int i = 0; i < colspan; i++)
{
int c = column + i;
if (fixedWidth > fixedWidths[c])
{
fixedWidths[c] = fixedWidth;
columnWidths[c] = fixedWidth;
}
}
}
if (cell.CompositeElements != null)
{
float[] widthValues = SetCellWidthAndWidestWord(cell);
float cellWidth = widthValues[0] / colspan;
float widestWordOfCell = widthValues[1] / colspan;
for (int i = 0; i < colspan; i++)
{
int c = column + i;
if (fixedWidths[c] == 0 && cellWidth > columnWidths[c])
{
columnWidths[c] = cellWidth;
if (colspan == 1)
{
if (cellWidth > largestColumn)
{
largestColumn = cellWidth;
indexOfLargestColumn = c;
}
}
else
{
if (cellWidth > largestColspanColumn)
{
largestColspanColumn = cellWidth;
indexOfLargestColspanColumn = c;
}
}
}
if (colspan == 1)
{
if (widestWordOfCell > widestWords[c])
{
widestWords[c] = widestWordOfCell;
}
}
else
{
if (widestWordOfCell > colspanWidestWords[c])
{
colspanWidestWords[c] = widestWordOfCell;
}
}
}
}
if (colspan > 1)
{
if (LOG.IsLogging(Level.TRACE))
{
LOG.Trace(String.Format(LocaleMessages.GetInstance().GetMessage(LocaleMessages.COLSPAN), colspan));
}
column += colspan - 1;
}
column++;
}
}
if (indexOfLargestColumn == -1)
{
indexOfLargestColumn = indexOfLargestColspanColumn;
if (indexOfLargestColumn == -1)
{
indexOfLargestColumn = 0;
}
for (int column = 0; column < numberOfColumns; column++)
{
widestWords[column] = colspanWidestWords[column];
}
}
float outerWidth = GetTableOuterWidth(tag, styleValues.HorBorderSpacing, ctx);
float initialTotalWidth = GetTableWidth(columnWidths, 0);
// float targetWidth = calculateTargetWidth(tag, columnWidths, outerWidth, ctx);
float targetWidth = 0;
HtmlPipelineContext htmlPipelineContext = GetHtmlPipelineContext(ctx);
float max = htmlPipelineContext.PageSize.Width - outerWidth;
bool tableWidthFixed = false;
if (tag.Attributes.ContainsKey(CSS.Property.WIDTH) || tag.CSS.ContainsKey(CSS.Property.WIDTH))
{
targetWidth = new WidthCalculator().GetWidth(tag, htmlPipelineContext.GetRootTags(), htmlPipelineContext.PageSize.Width);
if (targetWidth > max)
{
targetWidth = max;
}
tableWidthFixed = true;
}
else if (initialTotalWidth <= max)
{
targetWidth = initialTotalWidth;
}
else if (null == tag.Parent || (null != tag.Parent && htmlPipelineContext.GetRootTags().Contains(tag.Parent.Name)))
{
targetWidth = max;
}
else /* this table is an inner table and width adjustment is done in outer table */
{
targetWidth = GetTableWidth(columnWidths, outerWidth);
}
float totalFixedColumnWidth = GetTableWidth(fixedWidths, 0);
float targetPercentage = 0;
if (totalFixedColumnWidth == initialTotalWidth) // all column widths are fixed
{
targetPercentage = targetWidth / initialTotalWidth;
if (initialTotalWidth > targetWidth)
{
for (int column = 0; column < columnWidths.Length; column++)
{
columnWidths[column] *= targetPercentage;
}
}
else if (tableWidthFixed && targetPercentage != 1)
{
for (int column = 0; column < columnWidths.Length; column++)
{
columnWidths[column] *= targetPercentage;
}
}
}
else
{
targetPercentage = (targetWidth - totalFixedColumnWidth) / (initialTotalWidth - totalFixedColumnWidth);
// Reduce width of columns if the columnWidth array + borders +
// paddings
// is too large for the given targetWidth.
if (initialTotalWidth > targetWidth)
{
float leftToReduce = 0;
for (int column = 0; column < columnWidths.Length; column++)
{
if (fixedWidths[column] == 0)
{
// Reduce width of the column to its targetWidth, if
// widestWord of column still fits in the targetWidth of
// the
// column.
if (widestWords[column] <= columnWidths[column] * targetPercentage)
{
columnWidths[column] *= targetPercentage;
// else take the widest word and calculate space
// left to
// reduce.
}
else
{
columnWidths[column] = widestWords[column];
leftToReduce += widestWords[column] - columnWidths[column] * targetPercentage;
}
// if widestWord of a column does not fit in the
// fixedWidth,
// set the column width to the widestWord.
}
else if (fixedWidths[column] < widestWords[column])
{
columnWidths[column] = widestWords[column];
leftToReduce += widestWords[column] - fixedWidths[column];
}
}
if (leftToReduce != 0)
{
// Reduce width of the column with the most text, if its
// widestWord still fits in the reduced column.
if (widestWords[indexOfLargestColumn] <= columnWidths[indexOfLargestColumn] - leftToReduce)
{
columnWidths[indexOfLargestColumn] -= leftToReduce;
}
else // set all columns to their minimum, with the
// widestWord array.
{
for (int column = 0; leftToReduce != 0 && column < columnWidths.Length; column++)
{
if (fixedWidths[column] == 0 && columnWidths[column] > widestWords[column])
{
float difference = columnWidths[column] - widestWords[column];
if (difference <= leftToReduce)
{
leftToReduce -= difference;
columnWidths[column] = widestWords[column];
}
else
{
columnWidths[column] -= leftToReduce;
leftToReduce = 0;
}
}
}
if (leftToReduce != 0)
{
// If the table has an insufficient fixed width
// by
// an
// attribute or style, try to enlarge the table
// to
// its
// minimum width (= widestWords array).
float pageWidth = GetHtmlPipelineContext(ctx).PageSize.Width;
if (GetTableWidth(widestWords, outerWidth) < pageWidth)
{
targetWidth = GetTableWidth(widestWords, outerWidth);
leftToReduce = 0;
}
else
{
// If all columnWidths are set to the
// widestWordWidths and the table is still
// to
// wide
// content will fall off the edge of a page,
// which
// is similar to HTML.
targetWidth = pageWidth - outerWidth;
leftToReduce = 0;
}
}
}
}
// Enlarge width of columns to fit the targetWidth.
}
else if (initialTotalWidth < targetWidth)
{
for (int column = 0; column < columnWidths.Length; column++)
{
if (fixedWidths[column] == 0)
{
columnWidths[column] *= targetPercentage;
}
}
}
}
try {
table.SetTotalWidth(columnWidths);
table.LockedWidth = true;
table.DefaultCell.Border = Rectangle.NO_BORDER;
} catch (DocumentException e) {
throw new RuntimeWorkerException(LocaleMessages.GetInstance().GetMessage(LocaleMessages.NO_CUSTOM_CONTEXT), e);
}
float?tableHeight = new HeightCalculator().GetHeight(tag, GetHtmlPipelineContext(ctx).PageSize.Height);
float?tableRowHeight = null;
if (tableHeight != null && tableHeight > 0)
{
tableRowHeight = tableHeight / tableRows.Count;
}
int rowNumber = 0;
foreach (TableRowElement row in tableRows)
{
int columnNumber = -1;
float?computedRowHeight = null;
/*if ( tableHeight != null && tableRows.IndexOf(row) == tableRows.Count - 1) {
* float computedTableHeigt = table.CalculateHeights();
* computedRowHeight = tableHeight - computedTableHeigt;
* }*/
foreach (HtmlCell cell in row.Content)
{
IList <IElement> compositeElements = cell.CompositeElements;
if (compositeElements != null)
{
foreach (IElement baseLevel in compositeElements)
{
if (baseLevel is PdfPTable)
{
TableStyleValues cellValues = cell.CellValues;
float totalBordersWidth = cellValues.IsLastInRow ? styleValues.HorBorderSpacing * 2
: styleValues.HorBorderSpacing;
totalBordersWidth += cellValues.BorderWidthLeft + cellValues.BorderWidthRight;
float columnWidth = 0;
for (int currentColumnNumber = columnNumber + 1; currentColumnNumber <= columnNumber + cell.Colspan; currentColumnNumber++)
{
columnWidth += columnWidths[currentColumnNumber];
}
IPdfPTableEvent tableEvent = ((PdfPTable)baseLevel).TableEvent;
TableStyleValues innerStyleValues = ((TableBorderEvent)tableEvent).TableStyleValues;
totalBordersWidth += innerStyleValues.BorderWidthLeft;
totalBordersWidth += innerStyleValues.BorderWidthRight;
((PdfPTable)baseLevel).TotalWidth = columnWidth - totalBordersWidth;
}
}
}
columnNumber += cell.Colspan;
table.AddCell(cell);
}
table.CompleteRow();
if ((computedRowHeight == null || computedRowHeight <= 0) && tableRowHeight != null)
{
computedRowHeight = tableRowHeight;
}
if (computedRowHeight != null && computedRowHeight > 0)
{
float rowHeight = table.GetRow(rowNumber).MaxHeights;
if (rowHeight < computedRowHeight)
{
table.GetRow(rowNumber).MaxHeights = computedRowHeight.Value;
}
else if (tableRowHeight != null && tableRowHeight < rowHeight)
{
tableRowHeight = (tableHeight - rowHeight - rowNumber * tableRowHeight)
/ (tableRows.Count - rowNumber - 1);
}
}
rowNumber++;
}
if (percentage)
{
table.WidthPercentage = utils.ParsePxInCmMmPcToPt(widthValue);
table.LockedWidth = false;
}
List <IElement> elems = new List <IElement>();
if (invalidRowElements.Count > 0)
{
// all invalid row elements taken as caption
int i = 0;
Tag captionTag = tag.Children[i++];
while (!Util.EqualsIgnoreCase(captionTag.Name, HTML.Tag.CAPTION) && i < tag.Children.Count)
{
captionTag = tag.Children[i];
i++;
}
String captionSideValue;
captionTag.CSS.TryGetValue(CSS.Property.CAPTION_SIDE, out captionSideValue);
if (captionSideValue != null && Util.EqualsIgnoreCase(captionSideValue, CSS.Value.BOTTOM))
{
elems.Add(table);
elems.AddRange(invalidRowElements);
}
else
{
elems.AddRange(invalidRowElements);
elems.Add(table);
}
}
else
{
elems.Add(table);
}
return(elems);
} catch (NoCustomContextException e) {
throw new RuntimeWorkerException(LocaleMessages.GetInstance().GetMessage(LocaleMessages.NO_CUSTOM_CONTEXT), e);
}
}
