1 files changed, 75 insertions, 0 deletions
diff --git a/libqpdf/QPDFAnnotationObjectHelper.cc b/libqpdf/QPDFAnnotationObjectHelper.cc
new file mode 100644
index 00000000..ee1d8180
--- /dev/null
+++ b/libqpdf/QPDFAnnotationObjectHelper.cc
@@ -0,0 +1,75 @@
+#include <qpdf/QPDFAnnotationObjectHelper.hh>
+#include <qpdf/QTC.hh>
+
+QPDFAnnotationObjectHelper::Members::~Members()
+{
+}
+
+QPDFAnnotationObjectHelper::Members::Members()
+{
+}
+
+QPDFAnnotationObjectHelper::QPDFAnnotationObjectHelper(QPDFObjectHandle oh) :
+    QPDFObjectHelper(oh)
+{
+}
+
+std::string
+QPDFAnnotationObjectHelper::getSubtype()
+{
+    return this->oh.getKey("/Subtype").getName();
+}
+
+QPDFObjectHandle::Rectangle
+QPDFAnnotationObjectHelper::getRect()
+{
+    return this->oh.getKey("/Rect").getArrayAsRectangle();
+}
+
+QPDFObjectHandle
+QPDFAnnotationObjectHelper::getAppearanceDictionary()
+{
+    return this->oh.getKey("/AP");
+}
+
+std::string
+QPDFAnnotationObjectHelper::getAppearanceState()
+{
+    if (this->oh.getKey("/AS").isName())
+    {
+        QTC::TC("qpdf", "QPDFAnnotationObjectHelper AS present");
+        return this->oh.getKey("/AS").getName();
+    }
+    QTC::TC("qpdf", "QPDFAnnotationObjectHelper AS absent");
+    return "";
+}
+
+QPDFObjectHandle
+QPDFAnnotationObjectHelper::getAppearanceStream(
+    std::string const& which,
+    std::string const& state)
+{
+    QPDFObjectHandle ap = getAppearanceDictionary();
+    std::string desired_state = state.empty() ? getAppearanceState() : state;
+    if (ap.isDictionary())
+    {
+        QPDFObjectHandle ap_sub = ap.getKey(which);
+        if (ap_sub.isStream() && desired_state.empty())
+        {
+            QTC::TC("qpdf", "QPDFAnnotationObjectHelper AP stream");
+            return ap_sub;
+        }
+        if (ap_sub.isDictionary() && (! desired_state.empty()))
+        {
+            QTC::TC("qpdf", "QPDFAnnotationObjectHelper AP dictionary");
+            QPDFObjectHandle ap_sub_val = ap_sub.getKey(desired_state);
+            if (ap_sub_val.isStream())
+            {
+                QTC::TC("qpdf", "QPDFAnnotationObjectHelper AN sub stream");
+                return ap_sub_val;
+            }
+        }
+    }
+    QTC::TC("qpdf", "QPDFAnnotationObjectHelper AN null");
+    return QPDFObjectHandle::newNull();
+}