Subhrajyoti Moitra wrote:
Hi,
I have a table with a custom image background. I am using PdfpTableEvent
to set this background.
The header cells of this table uses some other color, different from the
table background.
To set this background color, I am using PdfPCellEvent.
PdfPCellEvent docHistTableHeaderCellEvent=new PdfPCellEvent(){
public void cellLayout(PdfPCell cell, Rectangle
rect,PdfContentByte[] canvases) {
PdfContentByte
backCb=canvases[PdfPTable.BACKGROUNDCANVAS];
backCb.setRGBColorFill(0xFF, 0x00, 0x00);
backCb.rectangle(rect.getLeft(),
rect.getBottom(),20, 10);
backCb.fill();
backCb.resetRGBColorFill();
}
};
This seems to be setting the red color rectangles, in a fixed location
(top of the table) and not adapting to the table headers positions.
Please advice. Any pointers to similar issues will be highly
appreciated. Thanks a lot in advance!
Attached is an example with cell events in the header.
I don't see any problem, do you?
--
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import java.awt.Color;
import java.io.FileOutputStream;
import java.io.IOException;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Element;
import com.lowagie.text.Font;
import com.lowagie.text.FontFactory;
import com.lowagie.text.PageSize;
import com.lowagie.text.Phrase;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfPCell;
import com.lowagie.text.pdf.PdfPCellEvent;
import com.lowagie.text.pdf.PdfPTable;
import com.lowagie.text.pdf.PdfWriter;
public class HeaderCellEvents {
class Ellipse implements PdfPCellEvent {
/**
* @see
com.lowagie.text.pdf.PdfPCellEvent#cellLayout(com.lowagie.text.pdf.PdfPCell,
* com.lowagie.text.Rectangle,
* com.lowagie.text.pdf.PdfContentByte[])
*/
public void cellLayout(PdfPCell cell, Rectangle rect,
PdfContentByte[] canvas) {
PdfContentByte cb = canvas[PdfPTable.BACKGROUNDCANVAS];
cb.setRGBColorFill(0xFF, 0x00, 0x00);
cb.ellipse(rect.getLeft(), rect.getBottom(),
rect.getRight(), rect.getTop());
cb.fill();
cb.resetRGBColorFill();
}
}
public static void main(String[] args) {
// step 1: creation of a document-object
Document document = new Document(PageSize.A4.rotate());
try {
// step 2:
// we create a writer
PdfWriter.getInstance(
// that listens to the document
document,
// and directs a PDF-stream to a file
new
FileOutputStream("headercellevents.pdf"));
// step 3: we open the document
document.open();
// step 4: we add a table to the document
PdfPTable datatable = new PdfPTable(10);
int headerwidths[] = { 10, 24, 12, 12, 7, 7, 7, 7, 7, 7
};
datatable.setWidths(headerwidths);
datatable.setWidthPercentage(100);
datatable.getDefaultCell().setPadding(5);
// The header starts with a cell that spans 10 columns
PdfPCell cell = new PdfPCell(new Phrase(
"Administration - System Users Report",
FontFactory
.getFont(FontFactory.HELVETICA, 24, Font.BOLD)));
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
cell.setBorderWidth(2);
cell.setColspan(10);
cell.setBackgroundColor(new Color(0xC0, 0xC0, 0xC0));
cell.setUseDescender(true);
cell.setCellEvent(new HeaderCellEvents().new Ellipse());
datatable.addCell(cell);
// We need 4 cells with rowspan 2
datatable.getDefaultCell().setBorderWidth(2);
datatable.getDefaultCell().setHorizontalAlignment(
Element.ALIGN_CENTER);
datatable.addCell("User Id");
datatable.addCell("Name\nAddress");
datatable.addCell("Company");
datatable.addCell("Department");
// we use a nested table to fake this
PdfPTable permissions = new PdfPTable(6);
permissions.getDefaultCell().setBorderWidth(2);
permissions.getDefaultCell().setHorizontalAlignment(
Element.ALIGN_CENTER);
permissions.getDefaultCell().setColspan(6);
permissions.addCell("Permissions");
permissions.getDefaultCell().setColspan(1);
permissions.addCell("Admin");
permissions.addCell("Data");
permissions.addCell("Expl");
permissions.addCell("Prod");
permissions.addCell("Proj");
permissions.addCell("Online");
PdfPCell permission = new PdfPCell(permissions);
permission.setColspan(6);
datatable.addCell(permission);
// this is the end of the table header
// as far as PdfPTable is concerned there are 2 rows in
the header
datatable.setHeaderRows(2);
// we add the data to the table
datatable.getDefaultCell().setBorderWidth(1);
for (int i = 1; i < 30; i++) {
datatable.getDefaultCell().setHorizontalAlignment(
Element.ALIGN_LEFT);
datatable.addCell("myUserId");
datatable
.addCell("Somebody with a very,
very, very, very, very, very, very, very, very, very, very, very, very, very,
very, very, very, very, very, very, very, very, very, very, very, very, very,
very, very, very, very long long name");
datatable.addCell("No Name Company");
datatable.addCell("D" + i);
datatable.getDefaultCell().setHorizontalAlignment(
Element.ALIGN_CENTER);
for (int j = 0; j < 6; j++)
datatable.addCell(Math.random() > .5 ?
"Yes" : "No");
}
datatable.setSplitLate(false);
document.add(datatable);
} catch (DocumentException de) {
System.err.println(de.getMessage());
} catch (IOException ioe) {
System.err.println(ioe.getMessage());
}
// step 5: we close the document
document.close();
}
}
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