Hi everybody,
I found a loop condition inside ColumnText class...it would be very usefull to
avoid that, because it seems like nothing is going on...but it's looping!!!
I'm trying do execute this code:
int mLeft = 40;
int mRight = 40;
int mTop = 50;
int mBottom = 50;
Document document = new Document(PageSize.A4, mLeft, mRight, mTop, mBottom);
PdfWriter writer = PdfWriter.getInstance(document, new
FileOutputStream("xxx.pdf"));
document.open();
Font font1 = new Font(Font.COURIER, 10f);
Chunk text = new Chunk("text text text text text", font1);
MultiColumnText column = new MultiColumnText();
float[][] left = {
{50f,790f,50f,60f},
{250f,790f,350f,500f,250f,60f}
};
float[][] right = {
{200f,790f,200f,700f,120f,600f,200f,500f,200f,60f},
{540f,790f,540f,60f}
};
column.addColumn(left[0], right[0]);
column.addColumn(left[1], right[1]);
for (int i = 0; i < 100; i++) {
column.addElement(text);
}
document.add(column);
This is the call tree into iText classes:
Document.add(Element)
PdfDocument.add(Element)
MultiColumnText.write(PdfContentByte, PdfDocument, float)
boolean done = false
while (!done) {
ColumnText.go()
ColumnText.go(boolean)
rectangularMode = false
ColumnText.findLimitsTwoLines()
ColumnText.findLimitsOneLine()
ColumnText.findLimitsPoint(ArrayList)
...
if (yLine < minY || yLine > maxY) {
lineStatus = LINE_STATUS_OFFLIMITS;
return 0;
}
...
status = NO_MORE_COLUMN
...
the "done" parameter will never be = true (LOOP)
}
I suggest to add this code in ColumnText.go(boolean) after line 858:
if (text.content.count == 0) {
StringBuffer message = new StringBuffer();
message.append("Check column edges: YLine=");
message.append(yLine);
message.append(" minY=");
message.append(minY);
message.append(" maxY=");
message.append(maxY);
message.append(" must be minY<=YLine<=maxY");
throw new RuntimeException(message.toString());
}
tks to all
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