Hi,
The image attachments didn't get through, either make them inline
(thunderbird does this), or upload them. Also upload the result PDF, and
some minimal self-working code.
There could be so many things... maybe there is a transformation, or
maybe the cells aren't where you think they are...
Re positions etc, try using PDFDebugger, when moving the mouse it shows
the actual positions.
Tilman
On 24.03.2025 18:11, Tim Mann wrote:
Greetings. I am a novice, hobbyist Java programmer. I am working on
a method that will properly line wrap text, as necessary, to fit
within a defined table cell.
The page' s width is set as fullPageWidth =
page1.getMediaBox().getWidth() - leftMargin - rightMargin; . I then
divide the fullPageWidth by the number of columns needed to get at the
width of each cell. Note that all cell widths are not necessarily
equal. To populate each cell in a line of the table, I pass the
text to be displayed (variable*myText)* to a method with the following
code. Note some code not relevant to text rendering has been removed.
private static int printCellContents(PDPageContentStream content,
PDPage page, PDFont font, int sizeOfFont, float startingLineNumber,
float headerHeight, float columnIndent, *String myText,* int
fieldNumber, float cellRight, int locationLineNumber)
char[] characters = *myText*.toCharArray();
String cellText = "";
float cellPrintableArea = displayColWidth[fieldNumber];//
holds width of each table cell in a horizontal row
int numberOfCellTextLines = 1;
try {
content.beginText();// 02262025
content.setLeading(utilities.setLeading(fontSize));// 03062025 added
content.newLineAtOffset(cellRight, pageHeight - marginTop
- headerHeight - (startingLineNumber * lineSpacing));// set position
to print
// line wrap the cell contents as necessary to fit
within the cell
for (int charIterator = 0; charIterator <
characters.length; charIterator++) {
// note in the below equation the use of Math.ceil
rounds up the string width
// subtracting 1 from the cellPrintableArea
accounts for the 0.5 vertical border line width on each side of the cell
if (Math.ceil(*fontPlain.getStringWidth(cellText +
characters[charIterator]) / 1000 * sizeOfFont) <= cellPrintableArea -
1*) {// 03242025 removed + variablePadText
cellText += characters[charIterator];
} else {
if (cellText.length() > 0) {
content.showText(cellText);
cellText = "";
content.newLine();
numberOfCellTextLines++;
charIterator--;
}
}
if (cellText.length() > 0) { // this is to print the
final myText string
try {
content.showText(cellText);
} catch (IOException ex) {
Logger.getLogger(handleComments.class.getName()).log(Level.SEVERE,
null, ex);
utilities.writeToResultsWindow(3, "error in
the field");
}
}
}
content.endText();
} catch (IOException ex) {
Logger.getLogger(handleCars.class.getName()).log(Level.SEVERE, null, ex);
}
return numberOfCellTextLines;
}
This approach for some reason does not work as text often, but not
always, overwrites the cell boundary lines. For example processing
the string "*Loyall yard track 2 (D)" *results in the
calculated**width of the text as 78.24 versus a cell width of 79.0.
(Helvetica plain font, size = 10) Thus suggesting the text will fit,
however the resulting table cell in the PDF shows that it should have
wrapped the line before the "2".
image.png
When using Courier size 10 font the failure is also present.
image.png
I have read much of the ISO standard regarding text. I've done
numerous internet searches on this. I've looked at using bounding
boxes, character widths, character displacements, etc but I cannot
find a suitable approach to consistently wrap the text within the
table cell boundaries. Any assistance would be greatly appreciated.
NOTE this code is for commercial use, but for a freeware program that
I'm developing.
--
Regards,
Tim Mann
