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<li class="navelem"><a class="el" href="namespaceExiv2.html">Exiv2</a></li><li class="navelem"><a class="el" href="classExiv2_1_1XmpValue.html">XmpValue</a></li> </ul>
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<a href="#pub-types">Public Types</a> |
<a href="#pub-static-methods">Static Public Member Functions</a> |
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<div class="title">Exiv2::XmpValue Class Reference<span class="mlabels"><span class="mlabel">abstract</span></span></div> </div>
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<p>Base class for all <a class="el" href="namespaceExiv2.html" title="Provides classes and functions to encode and decode Exif and Iptc data. The libexiv2 API consists of ...">Exiv2</a> values used to store XMP property values.
<a href="classExiv2_1_1XmpValue.html#details">More...</a></p>
<p><code>#include <value.hpp></code></p>
<div id="dynsection-0" onclick="return toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;">
<img id="dynsection-0-trigger" src="closed.png" alt="+"/> Inheritance diagram for Exiv2::XmpValue:</div>
<div id="dynsection-0-summary" class="dynsummary" style="display:block;">
</div>
<div id="dynsection-0-content" class="dyncontent" style="display:none;">
<div class="center"><img src="classExiv2_1_1XmpValue__inherit__graph.png" border="0" usemap="#Exiv2_1_1XmpValue_inherit__map" alt="Inheritance graph"/></div>
<map name="Exiv2_1_1XmpValue_inherit__map" id="Exiv2_1_1XmpValue_inherit__map">
<area shape="rect" id="node3" href="classExiv2_1_1LangAltValue.html" title="Value type for XMP language alternative properties. " alt="" coords="5,155,217,181"/><area shape="rect" id="node4" href="classExiv2_1_1XmpArrayValue.html" title="Value type for simple arrays. Each item in the array is a simple value, without qualifiers. The array may be an ordered (seq), unordered (bag) or alternative array (alt). The array items must not contain qualifiers. For language alternatives use LangAltValue. " alt="" coords="241,155,464,181"/><area shape="rect" id="node5" href="classExiv2_1_1XmpTextValue.html" title="Value type suitable for simple XMP properties and XMP nodes of complex types which are not parsed int..." alt="" coords="488,155,700,181"/><area shape="rect" id="node2" href="classExiv2_1_1Value.html" title="Common interface for all types of values used with metadata. " alt="" coords="281,5,424,32"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<div id="dynsection-1" onclick="return toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;">
<img id="dynsection-1-trigger" src="closed.png" alt="+"/> Collaboration diagram for Exiv2::XmpValue:</div>
<div id="dynsection-1-summary" class="dynsummary" style="display:block;">
</div>
<div id="dynsection-1-content" class="dyncontent" style="display:none;">
<div class="center"><img src="classExiv2_1_1XmpValue__coll__graph.png" border="0" usemap="#Exiv2_1_1XmpValue_coll__map" alt="Collaboration graph"/></div>
<map name="Exiv2_1_1XmpValue_coll__map" id="Exiv2_1_1XmpValue_coll__map">
<area shape="rect" id="node2" href="classExiv2_1_1Value.html" title="Common interface for all types of values used with metadata. " alt="" coords="20,5,163,32"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:adcef489707e5b72735cccb7bee57cf5c"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="adcef489707e5b72735cccb7bee57cf5c"></a>enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1XmpValue.html#adcef489707e5b72735cccb7bee57cf5c">XmpArrayType</a> { <b>xaNone</b>,
<b>xaAlt</b>,
<b>xaBag</b>,
<b>xaSeq</b>
}</td></tr>
<tr class="memdesc:adcef489707e5b72735cccb7bee57cf5c"><td class="mdescLeft"> </td><td class="mdescRight">XMP array types. <br /></td></tr>
<tr class="separator:adcef489707e5b72735cccb7bee57cf5c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a417c4392d9251b143df126fa9e9d1025"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a417c4392d9251b143df126fa9e9d1025"></a>enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1XmpValue.html#a417c4392d9251b143df126fa9e9d1025">XmpStruct</a> { <b>xsNone</b>,
<b>xsStruct</b>
}</td></tr>
<tr class="memdesc:a417c4392d9251b143df126fa9e9d1025"><td class="mdescLeft"> </td><td class="mdescRight">XMP structure indicator. <br /></td></tr>
<tr class="separator:a417c4392d9251b143df126fa9e9d1025"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0559bb270b4d2ebc0d784b807c3af44a"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0559bb270b4d2ebc0d784b807c3af44a"></a>
typedef std::auto_ptr< <a class="el" href="classExiv2_1_1XmpValue.html">XmpValue</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1XmpValue.html#a0559bb270b4d2ebc0d784b807c3af44a">AutoPtr</a></td></tr>
<tr class="memdesc:a0559bb270b4d2ebc0d784b807c3af44a"><td class="mdescLeft"> </td><td class="mdescRight">Shortcut for a XmpValue auto pointer. <br /></td></tr>
<tr class="separator:a0559bb270b4d2ebc0d784b807c3af44a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_types_classExiv2_1_1Value"><td colspan="2" onclick="javascript:toggleInherit('pub_types_classExiv2_1_1Value')"><img src="closed.png" alt="-"/> Public Types inherited from <a class="el" href="classExiv2_1_1Value.html">Exiv2::Value</a></td></tr>
<tr class="memitem:a0f62e585b82c97738858b743e60dff21 inherit pub_types_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0f62e585b82c97738858b743e60dff21"></a>
typedef std::auto_ptr< <a class="el" href="classExiv2_1_1Value.html">Value</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a0f62e585b82c97738858b743e60dff21">AutoPtr</a></td></tr>
<tr class="memdesc:a0f62e585b82c97738858b743e60dff21 inherit pub_types_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Shortcut for a Value auto pointer. <br /></td></tr>
<tr class="separator:a0f62e585b82c97738858b743e60dff21 inherit pub_types_classExiv2_1_1Value"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td colspan="2"><div class="groupHeader">Creators</div></td></tr>
<tr class="memitem:a04fe5c2370ba38a8068040f92a865fec"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a04fe5c2370ba38a8068040f92a865fec"></a>
 </td><td class="memItemRight" valign="bottom"><b>XmpValue</b> (<a class="el" href="namespaceExiv2.html#a5153319711f35fe81cbc13f4b852450c">TypeId</a> <a class="el" href="classExiv2_1_1Value.html#a1a56299aad4e614c4f0225d97530c038">typeId</a>)</td></tr>
<tr class="separator:a04fe5c2370ba38a8068040f92a865fec"><td class="memSeparator" colspan="2"> </td></tr>
<tr><td colspan="2"><div class="groupHeader">Accessors</div></td></tr>
<tr class="memitem:afa940e92a938b8350edf0b41912db2b7"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="afa940e92a938b8350edf0b41912db2b7"></a>
<a class="el" href="classExiv2_1_1XmpValue.html#adcef489707e5b72735cccb7bee57cf5c">XmpArrayType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1XmpValue.html#afa940e92a938b8350edf0b41912db2b7">xmpArrayType</a> () const </td></tr>
<tr class="memdesc:afa940e92a938b8350edf0b41912db2b7"><td class="mdescLeft"> </td><td class="mdescRight">Return XMP array type, indicates if an XMP value is an array. <br /></td></tr>
<tr class="separator:afa940e92a938b8350edf0b41912db2b7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a179ee99bb4cde4d8f91786de9625f13d"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a179ee99bb4cde4d8f91786de9625f13d"></a>
<a class="el" href="classExiv2_1_1XmpValue.html#a417c4392d9251b143df126fa9e9d1025">XmpStruct</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1XmpValue.html#a179ee99bb4cde4d8f91786de9625f13d">xmpStruct</a> () const </td></tr>
<tr class="memdesc:a179ee99bb4cde4d8f91786de9625f13d"><td class="mdescLeft"> </td><td class="mdescRight">Return XMP struct, indicates if an XMP value is a structure. <br /></td></tr>
<tr class="separator:a179ee99bb4cde4d8f91786de9625f13d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3f81d8c587380f37df5b5740e09fdbac"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3f81d8c587380f37df5b5740e09fdbac"></a>
virtual long </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1XmpValue.html#a3f81d8c587380f37df5b5740e09fdbac">size</a> () const </td></tr>
<tr class="memdesc:a3f81d8c587380f37df5b5740e09fdbac"><td class="mdescLeft"> </td><td class="mdescRight">Return the size of the value in bytes. <br /></td></tr>
<tr class="separator:a3f81d8c587380f37df5b5740e09fdbac"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1417a259ba1ae7f2285ca0131a7d3438"><td class="memItemLeft" align="right" valign="top">virtual long </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1XmpValue.html#a1417a259ba1ae7f2285ca0131a7d3438">copy</a> (<a class="el" href="namespaceExiv2.html#a16f60a5bd4207fe155f6cf93a15efa72">byte</a> *buf, <a class="el" href="namespaceExiv2.html#a94c225faf6d6c611a3828fae1c28efa6">ByteOrder</a> byteOrder=invalidByteOrder) const </td></tr>
<tr class="memdesc:a1417a259ba1ae7f2285ca0131a7d3438"><td class="mdescLeft"> </td><td class="mdescRight">Write value to a character data buffer. <a href="#a1417a259ba1ae7f2285ca0131a7d3438">More...</a><br /></td></tr>
<tr class="separator:a1417a259ba1ae7f2285ca0131a7d3438"><td class="memSeparator" colspan="2"> </td></tr>
<tr><td colspan="2"><div class="groupHeader">Manipulators</div></td></tr>
<tr class="memitem:af9ca857d5c130ac36996d6a0519369df"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="af9ca857d5c130ac36996d6a0519369df"></a>
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1XmpValue.html#af9ca857d5c130ac36996d6a0519369df">setXmpArrayType</a> (<a class="el" href="classExiv2_1_1XmpValue.html#adcef489707e5b72735cccb7bee57cf5c">XmpArrayType</a> <a class="el" href="classExiv2_1_1XmpValue.html#afa940e92a938b8350edf0b41912db2b7">xmpArrayType</a>)</td></tr>
<tr class="memdesc:af9ca857d5c130ac36996d6a0519369df"><td class="mdescLeft"> </td><td class="mdescRight">Set the XMP array type to indicate that an XMP value is an array. <br /></td></tr>
<tr class="separator:af9ca857d5c130ac36996d6a0519369df"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac3b98fc15a65051d546ff5d1f73487ed"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ac3b98fc15a65051d546ff5d1f73487ed"></a>
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1XmpValue.html#ac3b98fc15a65051d546ff5d1f73487ed">setXmpStruct</a> (<a class="el" href="classExiv2_1_1XmpValue.html#a417c4392d9251b143df126fa9e9d1025">XmpStruct</a> <a class="el" href="classExiv2_1_1XmpValue.html#a179ee99bb4cde4d8f91786de9625f13d">xmpStruct</a>=xsStruct)</td></tr>
<tr class="memdesc:ac3b98fc15a65051d546ff5d1f73487ed"><td class="mdescLeft"> </td><td class="mdescRight">Set the XMP struct type to indicate that an XMP value is a structure. <br /></td></tr>
<tr class="separator:ac3b98fc15a65051d546ff5d1f73487ed"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a411b3b510f1b9ca49f1784ea9535d185"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1XmpValue.html#a411b3b510f1b9ca49f1784ea9535d185">read</a> (const <a class="el" href="namespaceExiv2.html#a16f60a5bd4207fe155f6cf93a15efa72">byte</a> *buf, long len, <a class="el" href="namespaceExiv2.html#a94c225faf6d6c611a3828fae1c28efa6">ByteOrder</a> byteOrder=invalidByteOrder)</td></tr>
<tr class="memdesc:a411b3b510f1b9ca49f1784ea9535d185"><td class="mdescLeft"> </td><td class="mdescRight">Read the value from a character buffer. <a href="#a411b3b510f1b9ca49f1784ea9535d185">More...</a><br /></td></tr>
<tr class="separator:a411b3b510f1b9ca49f1784ea9535d185"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7c357e0bee86bd3c6eee197711472821"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1XmpValue.html#a7c357e0bee86bd3c6eee197711472821">read</a> (const std::string &buf)=0</td></tr>
<tr class="memdesc:a7c357e0bee86bd3c6eee197711472821"><td class="mdescLeft"> </td><td class="mdescRight">Set the value from a string buffer. The format of the string corresponds to that of the <a class="el" href="classExiv2_1_1Value.html#a2518f5ba09fc8c00785c57a119892c4c" title="Write the value to an output stream. You do not usually have to use this function; it is used for the...">write()</a> method, i.e., a string obtained through the <a class="el" href="classExiv2_1_1Value.html#a2518f5ba09fc8c00785c57a119892c4c" title="Write the value to an output stream. You do not usually have to use this function; it is used for the...">write()</a> method can be read by this function. <a href="#a7c357e0bee86bd3c6eee197711472821">More...</a><br /></td></tr>
<tr class="separator:a7c357e0bee86bd3c6eee197711472821"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_classExiv2_1_1Value"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classExiv2_1_1Value')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classExiv2_1_1Value.html">Exiv2::Value</a></td></tr>
<tr class="memitem:ab475b1680c6fa36a092c4584f70a8027 inherit pub_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab475b1680c6fa36a092c4584f70a8027"></a>
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#ab475b1680c6fa36a092c4584f70a8027">Value</a> (<a class="el" href="namespaceExiv2.html#a5153319711f35fe81cbc13f4b852450c">TypeId</a> <a class="el" href="classExiv2_1_1Value.html#a1a56299aad4e614c4f0225d97530c038">typeId</a>)</td></tr>
<tr class="memdesc:ab475b1680c6fa36a092c4584f70a8027 inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Constructor, taking a type id to initialize the base class with. <br /></td></tr>
<tr class="separator:ab475b1680c6fa36a092c4584f70a8027 inherit pub_methods_classExiv2_1_1Value"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a22a8e3314aad989671aedeee1c7ef375 inherit pub_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a22a8e3314aad989671aedeee1c7ef375"></a>
virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a22a8e3314aad989671aedeee1c7ef375">~Value</a> ()</td></tr>
<tr class="memdesc:a22a8e3314aad989671aedeee1c7ef375 inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Virtual destructor. <br /></td></tr>
<tr class="separator:a22a8e3314aad989671aedeee1c7ef375 inherit pub_methods_classExiv2_1_1Value"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6e8f3c20bf5d09f34371660a6cf50af3 inherit pub_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a6e8f3c20bf5d09f34371660a6cf50af3">setDataArea</a> (const <a class="el" href="namespaceExiv2.html#a16f60a5bd4207fe155f6cf93a15efa72">byte</a> *buf, long len)</td></tr>
<tr class="memdesc:a6e8f3c20bf5d09f34371660a6cf50af3 inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Set the data area, if the value has one by copying (cloning) the buffer pointed to by buf. <a href="#a6e8f3c20bf5d09f34371660a6cf50af3">More...</a><br /></td></tr>
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<tr class="memitem:a1a56299aad4e614c4f0225d97530c038 inherit pub_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1a56299aad4e614c4f0225d97530c038"></a>
<a class="el" href="namespaceExiv2.html#a5153319711f35fe81cbc13f4b852450c">TypeId</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a1a56299aad4e614c4f0225d97530c038">typeId</a> () const </td></tr>
<tr class="memdesc:a1a56299aad4e614c4f0225d97530c038 inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Return the type identifier (Exif data format type). <br /></td></tr>
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<tr class="memitem:a84db34d85bac0f5e159d67a1e10c7976 inherit pub_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a84db34d85bac0f5e159d67a1e10c7976"></a>
<a class="el" href="classExiv2_1_1Value.html#a0f62e585b82c97738858b743e60dff21">AutoPtr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a84db34d85bac0f5e159d67a1e10c7976">clone</a> () const </td></tr>
<tr class="memdesc:a84db34d85bac0f5e159d67a1e10c7976 inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Return an auto-pointer to a copy of itself (deep copy). The caller owns this copy and the auto-pointer ensures that it will be deleted. <br /></td></tr>
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<tr class="memitem:ae046b0b081c2be1cf160db595c66fe6d inherit pub_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ae046b0b081c2be1cf160db595c66fe6d"></a>
virtual long </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#ae046b0b081c2be1cf160db595c66fe6d">count</a> () const =0</td></tr>
<tr class="memdesc:ae046b0b081c2be1cf160db595c66fe6d inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Return the number of components of the value. <br /></td></tr>
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<tr class="memitem:a2518f5ba09fc8c00785c57a119892c4c inherit pub_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a2518f5ba09fc8c00785c57a119892c4c"></a>
virtual std::ostream & </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a2518f5ba09fc8c00785c57a119892c4c">write</a> (std::ostream &os) const =0</td></tr>
<tr class="memdesc:a2518f5ba09fc8c00785c57a119892c4c inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Write the value to an output stream. You do not usually have to use this function; it is used for the implementation of the output operator for Value, <a class="el" href="namespaceExiv2.html#abe882054db13fc2f4f6f7e8e1261d982" title="Output operator for Value types. ">operator<<(std::ostream &os, const Value &value)</a>. <br /></td></tr>
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std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a0b07106aa570a506f4211c7bfa605fb0">toString</a> () const </td></tr>
<tr class="memdesc:a0b07106aa570a506f4211c7bfa605fb0 inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Return the value as a string. Implemented in terms of <a class="el" href="classExiv2_1_1Value.html#a2518f5ba09fc8c00785c57a119892c4c" title="Write the value to an output stream. You do not usually have to use this function; it is used for the...">write(std::ostream& os) const </a>of the concrete class. <br /></td></tr>
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<tr class="memitem:a856b1a10a7081540484ce62e8f75e389 inherit pub_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a856b1a10a7081540484ce62e8f75e389"></a>
virtual std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a856b1a10a7081540484ce62e8f75e389">toString</a> (long n) const </td></tr>
<tr class="memdesc:a856b1a10a7081540484ce62e8f75e389 inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Return the <em>n</em>-th component of the value as a string. The default implementation returns <a class="el" href="classExiv2_1_1Value.html#a0b07106aa570a506f4211c7bfa605fb0" title="Return the value as a string. Implemented in terms of write(std::ostream& os) const of the concrete c...">toString()</a>. The behaviour of this method may be undefined if there is no <em>n</em>-th component. <br /></td></tr>
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<tr class="memitem:a4530a3fc3e2305cf994de5476f46f953 inherit pub_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top">virtual long </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a4530a3fc3e2305cf994de5476f46f953">toLong</a> (long n=0) const =0</td></tr>
<tr class="memdesc:a4530a3fc3e2305cf994de5476f46f953 inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Convert the <em>n</em>-th component of the value to a long. The behaviour of this method may be undefined if there is no <em>n</em>-th component. <a href="#a4530a3fc3e2305cf994de5476f46f953">More...</a><br /></td></tr>
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<tr class="memitem:a22d257caa6c1ffe6416ce02de7bd8c1c inherit pub_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top">virtual float </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a22d257caa6c1ffe6416ce02de7bd8c1c">toFloat</a> (long n=0) const =0</td></tr>
<tr class="memdesc:a22d257caa6c1ffe6416ce02de7bd8c1c inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Convert the <em>n</em>-th component of the value to a float. The behaviour of this method may be undefined if there is no <em>n</em>-th component. <a href="#a22d257caa6c1ffe6416ce02de7bd8c1c">More...</a><br /></td></tr>
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<tr class="memitem:a595a4cb549bec8c19d290ca3e95a2678 inherit pub_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="namespaceExiv2.html#a95756f3f7fa19103f83addf5fa088a30">Rational</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a595a4cb549bec8c19d290ca3e95a2678">toRational</a> (long n=0) const =0</td></tr>
<tr class="memdesc:a595a4cb549bec8c19d290ca3e95a2678 inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Convert the <em>n</em>-th component of the value to a Rational. The behaviour of this method may be undefined if there is no <em>n</em>-th component. <a href="#a595a4cb549bec8c19d290ca3e95a2678">More...</a><br /></td></tr>
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virtual long </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a0105d81baf07d531cc6de2d2bb4a7bea">sizeDataArea</a> () const </td></tr>
<tr class="memdesc:a0105d81baf07d531cc6de2d2bb4a7bea inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Return the size of the data area, 0 if there is none. <br /></td></tr>
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<tr class="memitem:a9d96b057ecc6e9f09e2c65b46a0688e0 inherit pub_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classExiv2_1_1DataBuf.html">DataBuf</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a9d96b057ecc6e9f09e2c65b46a0688e0">dataArea</a> () const </td></tr>
<tr class="memdesc:a9d96b057ecc6e9f09e2c65b46a0688e0 inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Return a copy of the data area if the value has one. The caller owns this copy and <a class="el" href="classExiv2_1_1DataBuf.html" title="Utility class containing a character array. All it does is to take care of memory allocation and dele...">DataBuf</a> ensures that it will be deleted. <a href="#a9d96b057ecc6e9f09e2c65b46a0688e0">More...</a><br /></td></tr>
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<tr class="memitem:a161550b3ef31b3a14b1d75149ba9ba71 inherit pub_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a161550b3ef31b3a14b1d75149ba9ba71"></a>
bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a161550b3ef31b3a14b1d75149ba9ba71">ok</a> () const </td></tr>
<tr class="memdesc:a161550b3ef31b3a14b1d75149ba9ba71 inherit pub_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Check the <em>ok</em> status indicator. After a to<Type> conversion, this indicator shows whether the conversion was successful. <br /></td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
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static <a class="el" href="classExiv2_1_1XmpValue.html#adcef489707e5b72735cccb7bee57cf5c">XmpArrayType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1XmpValue.html#a1388aadb7adca555160c9deb7961d666">xmpArrayType</a> (<a class="el" href="namespaceExiv2.html#a5153319711f35fe81cbc13f4b852450c">TypeId</a> <a class="el" href="classExiv2_1_1Value.html#a1a56299aad4e614c4f0225d97530c038">typeId</a>)</td></tr>
<tr class="memdesc:a1388aadb7adca555160c9deb7961d666"><td class="mdescLeft"> </td><td class="mdescRight">Return XMP array type for an array <a class="el" href="classExiv2_1_1Value.html" title="Common interface for all types of values used with metadata. ">Value</a> TypeId, xaNone if <em>typeId</em> is not an XMP array value type. <br /></td></tr>
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<tr class="inherit_header pub_static_methods_classExiv2_1_1Value"><td colspan="2" onclick="javascript:toggleInherit('pub_static_methods_classExiv2_1_1Value')"><img src="closed.png" alt="-"/> Static Public Member Functions inherited from <a class="el" href="classExiv2_1_1Value.html">Exiv2::Value</a></td></tr>
<tr class="memitem:a7a6c027316e3dec0f7e79430f104c137 inherit pub_static_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="classExiv2_1_1Value.html#a0f62e585b82c97738858b743e60dff21">AutoPtr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a7a6c027316e3dec0f7e79430f104c137">create</a> (<a class="el" href="namespaceExiv2.html#a5153319711f35fe81cbc13f4b852450c">TypeId</a> <a class="el" href="classExiv2_1_1Value.html#a1a56299aad4e614c4f0225d97530c038">typeId</a>)</td></tr>
<tr class="memdesc:a7a6c027316e3dec0f7e79430f104c137 inherit pub_static_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">A (simple) factory to create a <a class="el" href="classExiv2_1_1Value.html" title="Common interface for all types of values used with metadata. ">Value</a> type. <a href="#a7a6c027316e3dec0f7e79430f104c137">More...</a><br /></td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
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<a class="el" href="classExiv2_1_1XmpValue.html">XmpValue</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1XmpValue.html#a097a9c5135a011827dde5faa0fdeaf80">operator=</a> (const <a class="el" href="classExiv2_1_1XmpValue.html">XmpValue</a> &rhs)</td></tr>
<tr class="memdesc:a097a9c5135a011827dde5faa0fdeaf80"><td class="mdescLeft"> </td><td class="mdescRight">Assignment operator. Protected so that it can only be used by subclasses but not directly. <br /></td></tr>
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<tr class="inherit_header pro_methods_classExiv2_1_1Value"><td colspan="2" onclick="javascript:toggleInherit('pro_methods_classExiv2_1_1Value')"><img src="closed.png" alt="-"/> Protected Member Functions inherited from <a class="el" href="classExiv2_1_1Value.html">Exiv2::Value</a></td></tr>
<tr class="memitem:aa2a9041cbd30d86260820b818cdf232e inherit pro_methods_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa2a9041cbd30d86260820b818cdf232e"></a>
<a class="el" href="classExiv2_1_1Value.html">Value</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#aa2a9041cbd30d86260820b818cdf232e">operator=</a> (const <a class="el" href="classExiv2_1_1Value.html">Value</a> &rhs)</td></tr>
<tr class="memdesc:aa2a9041cbd30d86260820b818cdf232e inherit pro_methods_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Assignment operator. Protected so that it can only be used by subclasses but not directly. <br /></td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="inherited"></a>
Additional Inherited Members</h2></td></tr>
<tr class="inherit_header pro_attribs_classExiv2_1_1Value"><td colspan="2" onclick="javascript:toggleInherit('pro_attribs_classExiv2_1_1Value')"><img src="closed.png" alt="-"/> Protected Attributes inherited from <a class="el" href="classExiv2_1_1Value.html">Exiv2::Value</a></td></tr>
<tr class="memitem:a4dc3a689b4bc1819290525cac491c1a8 inherit pro_attribs_classExiv2_1_1Value"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a4dc3a689b4bc1819290525cac491c1a8"></a>
bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Value.html#a4dc3a689b4bc1819290525cac491c1a8">ok_</a></td></tr>
<tr class="memdesc:a4dc3a689b4bc1819290525cac491c1a8 inherit pro_attribs_classExiv2_1_1Value"><td class="mdescLeft"> </td><td class="mdescRight">Indicates the status of the previous to<Type> conversion. <br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Base class for all <a class="el" href="namespaceExiv2.html" title="Provides classes and functions to encode and decode Exif and Iptc data. The libexiv2 API consists of ...">Exiv2</a> values used to store XMP property values. </p>
</div><h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">long Exiv2::XmpValue::copy </td>
<td>(</td>
<td class="paramtype"><a class="el" href="namespaceExiv2.html#a16f60a5bd4207fe155f6cf93a15efa72">byte</a> * </td>
<td class="paramname"><em>buf</em>, </td>
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<td class="paramtype"><a class="el" href="namespaceExiv2.html#a94c225faf6d6c611a3828fae1c28efa6">ByteOrder</a> </td>
<td class="paramname"><em>byteOrder</em> = <code>invalidByteOrder</code> </td>
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<p>Write value to a character data buffer. </p>
<p>The user must ensure that the buffer has enough memory. Otherwise the call results in undefined behaviour.</p>
<dl class="section note"><dt>Note</dt><dd>The byte order is required by the interface but not used by this method, so just use the default.</dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">buf</td><td>Data buffer to write to. </td></tr>
<tr><td class="paramname">byteOrder</td><td>Byte order. Not used. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Number of characters written. </dd></dl>
<p>Implements <a class="el" href="classExiv2_1_1Value.html#a3bf4f9c2eda4f7850a390de98668ce15">Exiv2::Value</a>.</p>
<p>References <a class="el" href="namespaceExiv2.html#a5153319711f35fe81cbc13f4b852450ca2d79fb07c9ec891f281968dad43c1e25">Exiv2::string</a>, and <a class="el" href="classExiv2_1_1Value.html#a2518f5ba09fc8c00785c57a119892c4c">Exiv2::Value::write()</a>.</p>
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<td class="memname">int Exiv2::XmpValue::read </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="namespaceExiv2.html#a16f60a5bd4207fe155f6cf93a15efa72">byte</a> * </td>
<td class="paramname"><em>buf</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">long </td>
<td class="paramname"><em>len</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="namespaceExiv2.html#a94c225faf6d6c611a3828fae1c28efa6">ByteOrder</a> </td>
<td class="paramname"><em>byteOrder</em> = <code>invalidByteOrder</code> </td>
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<td>)</td>
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<span class="mlabels"><span class="mlabel">virtual</span></span> </td>
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<p>Read the value from a character buffer. </p>
<p>Uses <a class="el" href="classExiv2_1_1XmpValue.html#a7c357e0bee86bd3c6eee197711472821" title="Set the value from a string buffer. The format of the string corresponds to that of the write() metho...">read(const std::string& buf)</a></p>
<dl class="section note"><dt>Note</dt><dd>The byte order is required by the interface but not used by this method, so just use the default.</dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">buf</td><td>Pointer to the data buffer to read from </td></tr>
<tr><td class="paramname">len</td><td>Number of bytes in the data buffer </td></tr>
<tr><td class="paramname">byteOrder</td><td>Byte order. Not needed.</td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 if successful. </dd></dl>
<p>Implements <a class="el" href="classExiv2_1_1Value.html#acc8870f802ebcdf9d4e081816ad8956e">Exiv2::Value</a>.</p>
<p>References <a class="el" href="namespaceExiv2.html#a5153319711f35fe81cbc13f4b852450ca2d79fb07c9ec891f281968dad43c1e25">Exiv2::string</a>.</p>
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<a class="anchor" id="a7c357e0bee86bd3c6eee197711472821"></a>
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<td class="memname">virtual int Exiv2::XmpValue::read </td>
<td>(</td>
<td class="paramtype">const std::string & </td>
<td class="paramname"><em>buf</em></td><td>)</td>
<td></td>
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<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
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<p>Set the value from a string buffer. The format of the string corresponds to that of the <a class="el" href="classExiv2_1_1Value.html#a2518f5ba09fc8c00785c57a119892c4c" title="Write the value to an output stream. You do not usually have to use this function; it is used for the...">write()</a> method, i.e., a string obtained through the <a class="el" href="classExiv2_1_1Value.html#a2518f5ba09fc8c00785c57a119892c4c" title="Write the value to an output stream. You do not usually have to use this function; it is used for the...">write()</a> method can be read by this function. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">buf</td><td>The string to read from.</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 if successful. </dd></dl>
<p>Implements <a class="el" href="classExiv2_1_1Value.html#a2864378d7572310aa5f4cf4127365862">Exiv2::Value</a>.</p>
<p>Implemented in <a class="el" href="classExiv2_1_1LangAltValue.html#af666af4cc5c56d520afca81e62676904">Exiv2::LangAltValue</a>, <a class="el" href="classExiv2_1_1XmpArrayValue.html#a17608cac7377fffdc25cbf4fdb4e5eed">Exiv2::XmpArrayValue</a>, and <a class="el" href="classExiv2_1_1XmpTextValue.html#abddc014ee1b2dee79d219b362c26b2bb">Exiv2::XmpTextValue</a>.</p>
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</div>
<hr/>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="value_8hpp.html">value.hpp</a></li>
<li>value.cpp</li>
</ul>
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