Hi,
I am not understanding something fundamental here. When I
create an Acroform across multiple pages, it always renders the fields
on the last page only. I use 2 examples, one from the book (with
modifications to increase rows), and one of my own. They both
demonstrate my problem.
Dan
import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.File;
import java.io.IOException;
import java.util.StringTokenizer;
import java.awt.Color;
import com.lowagie.text.*;
import com.lowagie.text.pdf.*;
import com.lowagie.text.pdf.events.*;
public class PdfTests implements PdfPTableEvent {
/**
* Creates an instance of an Event to add a field.
*/
public PdfTests() {
}
public static void main(String[] args) {
test1();
test2();
}
public static void test2() {
try {
Document document = new Document();
int ndx = 0;
File f = new File("d:\\jobs\\ipdf\\pdftest-" + ndx + ".pdf");
while (f.exists()) {
ndx++;
f = new File("d:\\jobs\\ipdf\\pdftest-" + ndx + ".pdf");
}
PdfWriter writer = PdfWriter.getInstance(document, new
FileOutputStream(f));
document.open();
PdfFormField parent = PdfFormField.createEmpty(writer);
parent.setFieldName("parent");
for (int i = 0; i < 3; i++) {
Paragraph p = new Paragraph("Page " + i);
document.add(p);
TextField tf = new TextField(writer, new Rectangle(0, 0, 0, 0),
"hidden" + i);
tf.setText("dan");
tf.setOptions(TextField.HIDDEN);
parent.addKid(tf.getTextField());
String options[] = { "English", "French", "Dutch", "German" };
PdfFormField combo = PdfFormField.createCombo(writer, true,
options, 0);
combo.setWidget(new Rectangle(80 * i + 40, 780, 80 * i + 120,
800),
PdfAnnotation.HIGHLIGHT_INVERT);
combo.setFieldName("language" + i);
parent.addKid(combo);
document.newPage();
}
PushbuttonField button1 = new PushbuttonField(writer,
new Rectangle(150, 560, 200, 590), "BUTTON1");
button1.setBackgroundColor(Color.LIGHT_GRAY);
button1.setText("POST");
button1.setVisibility(PushbuttonField.VISIBLE_BUT_DOES_NOT_PRINT);
PdfFormField submit1 = button1.getField();
submit1.setAction(PdfAction.createSubmitForm(
"http://127.0.0.1/testpost.php";,
null, PdfAction.SUBMIT_HTML_FORMAT
| PdfAction.SUBMIT_COORDINATES));
parent.addKid(submit1);
writer.addAnnotation(parent);
document.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Generates a learning agreement form.
*
* @param args
* no arguments needed here
*/
public static void test1() {
System.out.println("Chapter 17: example Learning Agreement");
System.out.println("-> Creates a learning agreement form in PDF;");
System.out.println("-> jars needed: iText.jar");
System.out.println("-> resulting PDF: learning_agreement.pdf");
// step 1: creation of a document-object
Document document = new Document();
try {
// step 2:
// we create a writer
PdfWriter writer = PdfWriter.getInstance(
// that listens to the document
document,
// and directs a PDF-stream to a file
new FileOutputStream("d:\\jobs\\ipdf\\pdftests.pdf"));
FieldPositioningEvents fpe = new FieldPositioningEvents();
writer.setPageEvent(fpe);
// step 3: we open the document
document.open();
StringBuffer js = new StringBuffer(
"var code = new Array();\nvar name = new Array();\nvar
credits = new Array();\n");
StringBuffer items = new StringBuffer("''");
String line;
int i = 0;
for (int j = 0; j < 116; j++) {
line = "CS" + j + ";COMP SCI " + j + ";3";
StringTokenizer js_courses = new StringTokenizer(line, ";");
line = js_courses.nextToken();
items.append(", '").append(line).append("'");
js.append("code[").append(i).append("] = '");
js.append(line).append("';\n");
js.append("name[").append(i).append("] = '");
js.append(js_courses.nextToken()).append("';\n");
js.append("credits[").append(i).append("] = '");
js.append(js_courses.nextToken()).append("';\n");
i++;
}
js.append("for (i = 0; i < 116; i++) {\n");
js.append(" f = this.getField('course_' + i + '.code');\n");
js.append(" f.setItems([").append(items.toString())
.append("]);\n");
js.append(" f = this.getField('course_' + i + '.name');\n");
js.append(" f.textSize = 0;\n");
js.append(" f.multiline = true;\n");
js.append("};\n");
js.append("this.getField('academic_year').value = '2006-2007';");
js.append("this.getField('field_of_study').value = 'ICT';");
js.append("this.getField('student_name').setFocus();");
js.append("function updateCourse(event) {\n");
js.append(" target = event.target.name;\n");
js.append(" parent = target.substring(0, target.length - 5);\n");
js.append(" for (c = 0; c < code.length; c++) {\n");
js.append(" if (event.value == code[c]) {\n");
js
.append(" this.getField(parent + '.name').value =
name[c];");
js
.append(" this.getField(parent + '.credits').value
= credits[c];");
js.append(" }\n");
js.append(" }\n");
js.append(" this.getField(parent + '.name').setFocus();");
js.append("}\n");
writer.addJavaScript(js.toString());
// step 4:
// we create a pushbutton that submits the form
PdfFormField pushbutton = PdfFormField.createPushButton(writer);
pushbutton.setFieldName("PushMe");
// we don't define the position on the page yet
pushbutton.setWidget(new Rectangle(0, 0),
PdfAnnotation.HIGHLIGHT_PUSH);
pushbutton
.setAction(PdfAction
.createSubmitForm(
"http://127.0.0.1/testpost.php";,
null, PdfAction.SUBMIT_HTML_FORMAT
| PdfAction.SUBMIT_COORDINATES));
// we add the button to the FieldPositioningEvent for later use
fpe.addField("pushMe", pushbutton);
Font font = FontFactory.getFont(BaseFont.HELVETICA,
BaseFont.WINANSI, BaseFont.NOT_EMBEDDED, 14);
Paragraph p;
// TITLE
p = new Paragraph("EXCHANGE STUDENTS", font);
p.setAlignment(Element.ALIGN_CENTER);
document.add(p);
p = new Paragraph("LEARNING AGREEMENT", font);
p.setAlignment(Element.ALIGN_CENTER);
document.add(p);
// this chunk will generate a field with name academic_year
Chunk academic_year = new Chunk(" ");
academic_year.setGenericTag("academic_year");
// this chunk will generate a field with name field_of_study
Chunk field_of_study = new Chunk(" ");
field_of_study.setGenericTag("field_of_study");
// SUBTITLE
p = new Paragraph(30, "ACADEMIC YEAR ", font);
p.add(academic_year);
p.add(new Phrase(" - FIELD OF STUDY: "));
p.add(field_of_study);
p.setAlignment(Element.ALIGN_CENTER);
document.add(p);
// TABLE WITH STUDENT INFORMATION
PdfPTable table;
int[] widths = { 12, 16, 8, 14 };
table = new PdfPTable(4);
table.setSpacingBefore(10f);
table.setSpacingAfter(10f);
table.setTableEvent(new PdfTests());
table.setWidths(widths);
table.getDefaultCell().setBorder(PdfPCell.NO_BORDER);
// first row, first column
table.addCell("Name of student:");
PdfPCell cell;
// first row, second column: a field to fill in
cell = new PdfPCell();
cell.setColspan(3);
cell.setBorder(PdfPCell.NO_BORDER);
cell
.setCellEvent(new FieldPositioningEvents(writer,
"student_name"));
table.addCell(cell);
// second row
cell = new PdfPCell(new Paragraph("Sending Institution:"));
cell.setColspan(4);
cell.setBorder(PdfPCell.NO_BORDER);
table.addCell(cell);
// third row, first column
cell = new PdfPCell();
cell.setPaddingBottom(5);
cell.setColspan(2);
cell.setBorder(PdfPCell.NO_BORDER);
cell.setCellEvent(new FieldPositioningEvents(writer,
"sending_institution"));
table.addCell(cell);
// third row, second column
cell = new PdfPCell(new Paragraph("Country:"));
cell.setPaddingBottom(5);
cell.setBorder(PdfPCell.NO_BORDER);
table.addCell(cell);
// third row, third column
cell = new PdfPCell();
cell.setPaddingBottom(5);
cell.setBorder(PdfPCell.NO_BORDER);
cell.setCellEvent(new FieldPositioningEvents(writer,
"sending_country"));
table.addCell(cell);
// fourth row
cell = new PdfPCell(new Paragraph("Letter of Introduction:"));
cell.setColspan(2);
cell.setBorder(PdfPCell.NO_BORDER);
table.addCell(cell);
cell = new PdfPCell();
cell.setColspan(2);
cell.setBorder(PdfPCell.NO_BORDER);
TextField letter = new TextField(writer, new Rectangle(0, 0),
"letter");
letter.setOptions(TextField.FILE_SELECTION);
PdfFormField introduction = letter.getTextField();
introduction
.setAdditionalActions(
PdfName.U,
PdfAction
.javaScript(
"this.getField('letter').browseForFileToSubmit();this.getField('receiving_institution').setFocus();",
writer));
cell.setCellEvent(new FieldPositioningEvents(writer, introduction));
table.addCell(cell);
document.add(table);
// INFORMATION CONCERNING THE RECEIVING INSTITUTION
p = new Paragraph("DETAILS OF THE PROPOSED STUDY PROGRAM ABROAD");
p.setAlignment(Element.ALIGN_CENTER);
document.add(p);
table = new PdfPTable(4);
table.setSpacingBefore(10f);
table.setSpacingAfter(10f);
table.setTableEvent(new PdfTests());
table.setWidths(widths);
table.getDefaultCell().setBorder(PdfPCell.NO_BORDER);
// first row
cell = new PdfPCell(new Paragraph("Receiving Institution:"));
cell.setColspan(4);
cell.setBorder(PdfPCell.NO_BORDER);
table.addCell(cell);
// second row first column
cell = new PdfPCell();
cell.setPaddingBottom(5);
cell.setColspan(2);
cell.setBorder(PdfPCell.NO_BORDER);
cell.setCellEvent(new FieldPositioningEvents(writer,
"receiving_institution"));
table.addCell(cell);
// second row, second column
cell = new PdfPCell(new Paragraph("Country:"));
cell.setPaddingBottom(5);
cell.setBorder(PdfPCell.NO_BORDER);
table.addCell(cell);
// second row, second column
cell = new PdfPCell();
cell.setPaddingBottom(5);
cell.setBorder(PdfPCell.NO_BORDER);
cell.setCellEvent(new FieldPositioningEvents(writer,
"receiving_country"));
table.addCell(cell);
document.add(table);
// list of courses
table = new PdfPTable(3);
table.setTableEvent(new PdfTests());
table.getDefaultCell().setBorder(PdfPCell.RIGHT);
table.addCell("Course code");
table.addCell("Course unit title");
table.getDefaultCell().setBorder(PdfPCell.NO_BORDER);
table.addCell("Number of ECTS credits");
PdfFormField[] lines = new PdfFormField[116];
FieldPositioningEvents kid;
TextField combo;
PdfFormField comboField;
for (i = 0; i < 116; i++) {
lines[i] = PdfFormField.createEmpty(writer);
lines[i].setFieldName("course_" + i);
cell = new PdfPCell();
cell.setFixedHeight(22);
cell.setBorder(PdfPCell.RIGHT);
combo = new TextField(writer, new Rectangle(0, 0), "code");
combo.setChoices(new String[] {});
comboField = combo.getComboField();
comboField.setAdditionalActions(PdfName.K, PdfAction
.javaScript("updateCourse(event);", writer));
kid = new FieldPositioningEvents(lines[i], comboField);
kid.setPadding(0.5f);
cell.setCellEvent(kid);
table.addCell(cell);
cell = new PdfPCell();
cell.setFixedHeight(22);
cell.setBorder(PdfPCell.RIGHT);
kid = new FieldPositioningEvents(writer, lines[i], "name");
kid.setPadding(0.5f);
cell.setCellEvent(kid);
table.addCell(cell);
cell = new PdfPCell();
cell.setFixedHeight(22);
cell.setBorder(PdfPCell.NO_BORDER);
kid = new FieldPositioningEvents(writer, lines[i], "credits");
kid.setPadding(0.5f);
cell.setCellEvent(kid);
table.addCell(cell);
}
document.add(table);
for (i = 0; i < 116; i++) {
writer.addAnnotation(lines[i]);
}
Chunk submit = new Chunk(" Click to submit ");
submit.setGenericTag("pushMe");
p = new Paragraph(submit);
p.setAlignment(Element.ALIGN_CENTER);
document.add(p);
} catch (DocumentException de) {
System.err.println(de.getMessage());
} catch (IOException ioe) {
System.err.println(ioe.getMessage());
}
// step 5: we close the document
document.close();
}
/**
* @see
com.lowagie.text.pdf.PdfPTableEvent#tableLayout(com.lowagie.text.pdf.PdfPTable,
* float[][], float[], int, int, com.lowagie.text.pdf.PdfContentByte[])
*/
public void tableLayout(PdfPTable table, float[][] width, float[] heights,
int headerRows, int rowStart, PdfContentByte[] canvases) {
float widths[] = width[0];
PdfContentByte cb = canvases[PdfPTable.TEXTCANVAS];
cb.rectangle(widths[0], heights[heights.length - 1],
widths[widths.length - 1] - widths[0], heights[0]
- heights[heights.length - 1]);
cb.stroke();
}
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