MultiPropertySetHelper.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#pragma once
 
#include <rtl/ustring.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include <memory>
 
namespace com::sun::star
{
namespace beans
{
class XMultiPropertySet;
}
namespace beans
{
class XPropertySet;
}
namespace beans
{
class XPropertySetInfo;
}
}
 
class MultiPropertySetHelper
{
    std::unique_ptr<OUString[]> pPropertyNames;
 
    sal_Int16 nLength;
 
    css::uno::Sequence<OUString> aPropertySequence;
 
    std::unique_ptr<sal_Int16[]> pSequenceIndex;
 
    css::uno::Sequence<css::uno::Any> aValues;
 
    const css::uno::Any* pValues;
 
    css::uno::Any aEmptyAny;
 
public:
    MultiPropertySetHelper(const char** pNames);
 
    ~MultiPropertySetHelper();
 
    void hasProperties(const css::uno::Reference<css::beans::XPropertySetInfo>&);
 
    bool checkedProperties();
 
    void getValues(const css::uno::Reference<css::beans::XMultiPropertySet>&);
 
    void getValues(const css::uno::Reference<css::beans::XPropertySet>&);
 
    inline const css::uno::Any& getValue(sal_Int16 nIndex);
 
    inline bool hasProperty(sal_Int16 nIndex);
 
    const css::uno::Any& getValue(sal_Int16 nIndex,
                                  const css::uno::Reference<css::beans::XPropertySet>&,
                                  bool bTryMulti = false);
 
    const css::uno::Any& getValue(sal_Int16 nIndex,
                                  const css::uno::Reference<css::beans::XMultiPropertySet>&);
 
    void resetValues() { pValues = nullptr; }
};
 
// inline implementations of the often-called methods getValue and hasProperty:
 
const css::uno::Any& MultiPropertySetHelper::getValue(sal_Int16 nValueNo)
{
    assert(pValues && "called getValue() without calling getValues()");
    assert(pSequenceIndex && "called getValue() without calling hasProperties()");
    assert(nValueNo < nLength);
 
    sal_Int16 nIndex = pSequenceIndex[nValueNo];
    return (nIndex != -1) ? pValues[nIndex] : aEmptyAny;
}
 
bool MultiPropertySetHelper::hasProperty(sal_Int16 nValueNo)
{
    assert(pSequenceIndex && "called hasProperty() without calling hasProperties()");
    assert(nValueNo < nLength);
 
    return pSequenceIndex[nValueNo] != -1;
}
 
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