From e58b1174c7f8b617a1253e70df9b95a1cac10fab Mon Sep 17 00:00:00 2001
From: m-holger <m-holger@kubitscheck.org>
Date: Sat, 5 Feb 2022 14:46:25 +0000
Subject: Add new QPDFObjectHandle::getValueAs... accessors

---
 libqpdf/QPDFObjectHandle.cc | 132 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)

(limited to 'libqpdf/QPDFObjectHandle.cc')

diff --git a/libqpdf/QPDFObjectHandle.cc b/libqpdf/QPDFObjectHandle.cc
index 0bcd816b..d754448f 100644
--- a/libqpdf/QPDFObjectHandle.cc
+++ b/libqpdf/QPDFObjectHandle.cc
@@ -391,6 +391,17 @@ QPDFObjectHandle::getNumericValue()
     return result;
 }
 
+bool
+QPDFObjectHandle::getValueAsNumber(double& value)
+{
+    if (! isNumber())
+    {
+        return false;
+    }
+    value = getNumericValue();
+    return true;
+}
+
 bool
 QPDFObjectHandle::isName()
 {
@@ -536,6 +547,17 @@ QPDFObjectHandle::getBoolValue()
     }
 }
 
+bool
+QPDFObjectHandle::getValueAsBool(bool& value)
+{
+    if (! isBool())
+    {
+        return false;
+    }
+    value = dynamic_cast<QPDF_Bool*>(obj.get())->getVal();
+    return true;
+}
+
 // Integer accessors
 
 long long
@@ -553,6 +575,17 @@ QPDFObjectHandle::getIntValue()
     }
 }
 
+bool
+QPDFObjectHandle::getValueAsInt(long long& value)
+{
+    if (! isInteger())
+    {
+        return false;
+    }
+    value = dynamic_cast<QPDF_Integer*>(obj.get())->getVal();
+    return true;
+}
+
 int
 QPDFObjectHandle::getIntValueAsInt()
 {
@@ -581,6 +614,17 @@ QPDFObjectHandle::getIntValueAsInt()
     return result;
 }
 
+bool
+QPDFObjectHandle::getValueAsInt(int& value)
+{
+    if (! isInteger())
+    {
+        return false;
+    }
+    value = getIntValueAsInt();
+    return true;
+}
+
 unsigned long long
 QPDFObjectHandle::getUIntValue()
 {
@@ -600,6 +644,17 @@ QPDFObjectHandle::getUIntValue()
     return result;
 }
 
+bool
+QPDFObjectHandle::getValueAsUInt(unsigned long long& value)
+{
+    if (! isInteger())
+    {
+        return false;
+    }
+    value = getUIntValue();
+    return true;
+}
+
 unsigned int
 QPDFObjectHandle::getUIntValueAsUInt()
 {
@@ -629,6 +684,17 @@ QPDFObjectHandle::getUIntValueAsUInt()
     return result;
 }
 
+bool
+QPDFObjectHandle::getValueAsUInt(unsigned int& value)
+{
+    if (! isInteger())
+    {
+        return false;
+    }
+    value = getUIntValueAsUInt();
+    return true;
+}
+
 // Real accessors
 
 std::string
@@ -646,6 +712,17 @@ QPDFObjectHandle::getRealValue()
     }
 }
 
+bool
+QPDFObjectHandle::getValueAsReal(std::string& value)
+{
+    if (! isReal())
+    {
+        return false;
+    }
+    value = dynamic_cast<QPDF_Real*>(obj.get())->getVal();
+    return true;
+}
+
 // Name accessors
 
 std::string
@@ -663,6 +740,17 @@ QPDFObjectHandle::getName()
     }
 }
 
+bool
+QPDFObjectHandle::getValueAsName(std::string& value)
+{
+    if (! isName())
+    {
+        return false;
+    }
+    value = dynamic_cast<QPDF_Name*>(obj.get())->getName();
+    return true;
+}
+
 // String accessors
 
 std::string
@@ -680,6 +768,17 @@ QPDFObjectHandle::getStringValue()
     }
 }
 
+bool
+QPDFObjectHandle::getValueAsString(std::string& value)
+{
+    if (! isString())
+    {
+        return false;
+    }
+    value = dynamic_cast<QPDF_String*>(obj.get())->getVal();
+    return true;
+}
+
 std::string
 QPDFObjectHandle::getUTF8Value()
 {
@@ -695,6 +794,17 @@ QPDFObjectHandle::getUTF8Value()
     }
 }
 
+bool
+QPDFObjectHandle::getValueAsUTF8(std::string& value)
+{
+    if (! isString())
+    {
+        return false;
+    }
+    value = dynamic_cast<QPDF_String*>(obj.get())->getUTF8Val();
+    return true;
+}
+
 // Operator and Inline Image accessors
 
 std::string
@@ -712,6 +822,17 @@ QPDFObjectHandle::getOperatorValue()
     }
 }
 
+bool
+QPDFObjectHandle::getValueAsOperator(std::string& value)
+{
+    if (! isOperator())
+    {
+        return false;
+    }
+    value = dynamic_cast<QPDF_Operator*>(obj.get())->getVal();
+    return true;
+}
+
 std::string
 QPDFObjectHandle::getInlineImageValue()
 {
@@ -727,6 +848,17 @@ QPDFObjectHandle::getInlineImageValue()
     }
 }
 
+bool
+QPDFObjectHandle::getValueAsInlineImage(std::string& value)
+{
+    if (! isInlineImage())
+    {
+        return false;
+    }
+    value = dynamic_cast<QPDF_InlineImage*>(obj.get())->getVal();
+    return true;
+}
+
 // Array accessors
 
 QPDFObjectHandle::QPDFArrayItems
-- 
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