diff options
Diffstat (limited to 'libqpdf/QPDFFormFieldObjectHelper.cc')
| -rw-r--r-- | libqpdf/QPDFFormFieldObjectHelper.cc | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/libqpdf/QPDFFormFieldObjectHelper.cc b/libqpdf/QPDFFormFieldObjectHelper.cc index f7c37132..ccc19cb5 100644 --- a/libqpdf/QPDFFormFieldObjectHelper.cc +++ b/libqpdf/QPDFFormFieldObjectHelper.cc @@ -506,6 +506,7 @@ class ValueSetter: public QPDFObjectHandle::TokenFilter { } virtual void handleToken(QPDFTokenizer::Token const&); + virtual void handleEOF(); void writeAppearance(); private: @@ -515,6 +516,7 @@ class ValueSetter: public QPDFObjectHandle::TokenFilter double tf; QPDFObjectHandle::Rectangle bbox; enum { st_top, st_bmc, st_emc, st_end } state; + bool replaced; }; ValueSetter::ValueSetter(std::string const& DA, std::string const& V, @@ -525,7 +527,8 @@ ValueSetter::ValueSetter(std::string const& DA, std::string const& V, opt(opt), tf(tf), bbox(bbox), - state(st_top) + state(st_top), + replaced(false) { } @@ -575,8 +578,22 @@ ValueSetter::handleToken(QPDFTokenizer::Token const& token) } } -void ValueSetter::writeAppearance() +void +ValueSetter::handleEOF() { + if (! this->replaced) + { + QTC::TC("qpdf", "QPDFFormFieldObjectHelper replaced BMC at EOF"); + write("/Tx BMC\n"); + writeAppearance(); + } +} + +void +ValueSetter::writeAppearance() +{ + this->replaced = true; + // This code does not take quadding into consideration because // doing so requires font metric information, which we don't // have in many cases. @@ -768,6 +785,29 @@ QPDFFormFieldObjectHelper::generateTextAppearance( QPDFAnnotationObjectHelper& aoh) { QPDFObjectHandle AS = aoh.getAppearanceStream("/N"); + if (AS.isNull()) + { + QTC::TC("qpdf", "QPDFFormFieldObjectHelper create AS from scratch"); + QPDFObjectHandle::Rectangle rect = aoh.getRect(); + QPDFObjectHandle::Rectangle bbox( + 0, 0, rect.urx - rect.llx, rect.ury - rect.lly); + QPDFObjectHandle dict = QPDFObjectHandle::parse( + "<< /Resources << /ProcSet [ /PDF /Text ] >>" + " /Type /XObject /Subtype /Form >>"); + dict.replaceKey("/BBox", QPDFObjectHandle::newFromRectangle(bbox)); + AS = QPDFObjectHandle::newStream( + this->oh.getOwningQPDF(), "/Tx BMC\nEMC\n"); + AS.replaceDict(dict); + QPDFObjectHandle AP = aoh.getAppearanceDictionary(); + if (AP.isNull()) + { + QTC::TC("qpdf", "QPDFFormFieldObjectHelper create AP from scratch"); + aoh.getObjectHandle().replaceKey( + "/AP", QPDFObjectHandle::newDictionary()); + AP = aoh.getAppearanceDictionary(); + } + AP.replaceKey("/N", AS); + } if (! AS.isStream()) { aoh.getObjectHandle().warnIfPossible( |