public override void Draw(DrawContext drawContext)
{
Rectangle position = GetOccupiedAreaBBox();
PdfAcroForm form = PdfAcroForm.GetAcroForm(drawContext.GetDocument(), true);
// Define the coordinates of the middle
float x = (position.GetLeft() + position.GetRight()) / 2;
float y = (position.GetTop() + position.GetBottom()) / 2;
// Define the position of a check box that measures 20 by 20
Rectangle rect = new Rectangle(x - 10, y - 10, 20, 20);
// The 4th parameter is the initial value of checkbox: 'Yes' - checked, 'Off' - unchecked
// By default, checkbox value type is cross.
PdfButtonFormField checkBox =
PdfFormField.CreateCheckBox(drawContext.GetDocument(), rect, this.name, "Yes");
switch (checkboxTypeIndex)
{
case 0:
{
checkBox.SetCheckType(PdfFormField.TYPE_CHECK);
// Use this method if you changed any field parameters and didn't use setValue
checkBox.RegenerateField();
break;
}
case 1:
{
checkBox.SetCheckType(PdfFormField.TYPE_CIRCLE);
checkBox.RegenerateField();
break;
}
case 2:
{
checkBox.SetCheckType(PdfFormField.TYPE_CROSS);
checkBox.RegenerateField();
break;
}
case 3:
{
checkBox.SetCheckType(PdfFormField.TYPE_DIAMOND);
checkBox.RegenerateField();
break;
}
case 4:
{
checkBox.SetCheckType(PdfFormField.TYPE_SQUARE);
checkBox.RegenerateField();
break;
}
case 5:
{
checkBox.SetCheckType(PdfFormField.TYPE_STAR);
checkBox.RegenerateField();
break;
}
}
form.AddField(checkBox);
}