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Hi, I'm having problems to determine the top margin with room for the header, when this header was written onEndPage event. I couldn't found a way of calculating this margin. I have a method for producing the document that looks like this: if(this.config.getLandscape()){ this.document=new Document(PageSize.A4.rotate()); }else{ this.document=new Document(PageSize.A4); } PdfWriter writer=PdfWriter.getInstance(this.document, out); writer.setPageEvent(new PDFDefaultHeaderAndFooter(config, columns, cols)); // here I fix top margin because I don't know how to calculate it. this.document.setMargins(20f, 20f, 200f, 20f); this.document.open(); int headerCount=0; for(PdfPTable table : this.tables){ if(this.hasGroups && headerCount<this.headerGroups.size()){ this.document.add(this.headerGroups.get(headerCount)); headerCount++; } this.document.add(table); } this.document.close(); In this case the PDFDefaultHeaderAndFooter class is responsible for actually write the header, and it also calculate the Y pos where it ends. The method in this class looks like: @Override public void onEndPage(PdfWriter writer, Document document) { float width=document.right()-document.left(); PdfPTable header=this.buildHeader(writer.getPageNumber()); header.setTotalWidth(width); float y; if(!config.getLandscape()) y=header.writeSelectedRows(0, -1, document.left(), 806, writer.getDirectContent()); else y=header.writeSelectedRows(0, -1, document.left(), 566, writer.getDirectContent()); header=this.buildFilterHeader(); if(header!=null){ header.setTotalWidth(width); y=header.writeSelectedRows(0, -1, document.left(), y, writer.getDirectContent()); } header=this.buildColumnTitles(); header.setTotalWidth(width); y=header.writeSelectedRows(0, -1, document.left(), y, writer.getDirectContent()); this.headerYEnd=y; } This method writes many headers, some of the are variable in height depending on data. So I have the data in headerYEnd on this class. The question is: how can I set the top margin as a function of the calculated headerYEnd value? Or how can I calculate the resulting headerYEnd before in order to set top margin? Waiting for your comments. Thank you in advance. Daniel |
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