100 lines
2.4 KiB
C++
100 lines
2.4 KiB
C++
#pragma once
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#include "metadata/ifc_metadata_editor.h"
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template <class metadata_t>
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class MetadataEditorChain : public metadata_t
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{
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public:
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MetadataEditorChain()
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{
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parent_metadata=0;
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}
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~MetadataEditorChain()
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{
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if (parent_metadata)
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parent_metadata->Release();
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}
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static bool Unhandled(ns_error_t ret)
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{
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return (ret == NErr_NotImplemented || ret == NErr_Empty || ret == NErr_Unknown);
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}
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ns_error_t SetParentMetadata(ifc_metadata_editor *new_parent_metadata)
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{
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if (parent_metadata)
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parent_metadata->Release();
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parent_metadata=new_parent_metadata;
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if (parent_metadata)
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parent_metadata->Retain();
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return NErr_Success;
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}
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protected:
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ifc_metadata_editor *parent_metadata;
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private:
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int WASABICALL MetadataEditor_Save()
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{
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if (parent_metadata)
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return parent_metadata->Save();
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else
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return NErr_NotImplemented;
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}
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int WASABICALL MetadataEditor_SetField(int field, unsigned int index, nx_string_t value)
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{
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bool known=false;
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if (parent_metadata && parent_metadata->SetField(field, index, value) == NErr_Success)
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known=true;
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if (metadata_t::MetadataEditor_SetField(field, index, value) == NErr_Success)
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known=true;
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if (known)
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return NErr_Success;
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else
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return NErr_Unknown;
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}
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int WASABICALL MetadataEditor_SetInteger(int field, unsigned int index, int64_t value)
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{
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bool known=false;
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if (parent_metadata && parent_metadata->SetInteger(field, index, value) == NErr_Success)
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known=true;
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if (metadata_t::MetadataEditor_SetInteger(field, index, value) == NErr_Success)
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known=true;
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if (known)
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return NErr_Success;
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else
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return NErr_Unknown;
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}
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int WASABICALL MetadataEditor_SetReal(int field, unsigned int index, double value)
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{
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bool known=false;
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if (parent_metadata && parent_metadata->SetReal(field, index, value) == NErr_Success)
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known=true;
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if (metadata_t::MetadataEditor_SetReal(field, index, value) == NErr_Success)
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known=true;
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if (known)
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return NErr_Success;
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else
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return NErr_Unknown;
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}
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int WASABICALL MetadataEditor_SetArtwork(int field, unsigned int index, artwork_t *data, data_flags_t flags)
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{
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bool known=false;
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if (parent_metadata && parent_metadata->SetArtwork(field, index, data, flags) == NErr_Success)
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known=true;
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if (metadata_t::MetadataEditor_SetArtwork(field, index, data, flags) == NErr_Success)
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known=true;
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if (known)
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return NErr_Success;
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else
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return NErr_Unknown;
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}
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}; |