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<li class="navelem"><a class="el" href="namespaceExiv2.html">Exiv2</a></li><li class="navelem"><a class="el" href="namespaceExiv2_1_1Internal.html">Internal</a></li><li class="navelem"><a class="el" href="classExiv2_1_1Internal_1_1IoWrapper.html">IoWrapper</a></li> </ul>
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<div class="title">Exiv2::Internal::IoWrapper Class Reference</div> </div>
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<p>Simple IO wrapper to ensure that the header is only written if there is any other data at all.
<a href="classExiv2_1_1Internal_1_1IoWrapper.html#details">More...</a></p>
<p><code>#include <tiffcomposite_int.hpp></code></p>
<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:a4237c7a12faecebeb424cbc36caff995"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Internal_1_1IoWrapper.html#a4237c7a12faecebeb424cbc36caff995">IoWrapper</a> (<a class="el" href="classExiv2_1_1BasicIo.html">BasicIo</a> &io, const <a class="el" href="namespaceExiv2.html#a16f60a5bd4207fe155f6cf93a15efa72">byte</a> *pHeader, long size, <a class="el" href="classExiv2_1_1Internal_1_1OffsetWriter.html">OffsetWriter</a> *pow)</td></tr>
<tr class="separator:a4237c7a12faecebeb424cbc36caff995"><td class="memSeparator" colspan="2"> </td></tr>
<tr><td colspan="2"><div class="groupHeader">Manipulators</div></td></tr>
<tr class="memitem:a6fabb0585e55152b54f60c56e837c672"><td class="memItemLeft" align="right" valign="top">long </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Internal_1_1IoWrapper.html#a6fabb0585e55152b54f60c56e837c672">write</a> (const <a class="el" href="namespaceExiv2.html#a16f60a5bd4207fe155f6cf93a15efa72">byte</a> *pData, long wcount)</td></tr>
<tr class="memdesc:a6fabb0585e55152b54f60c56e837c672"><td class="mdescLeft"> </td><td class="mdescRight">Wraps the corresponding <a class="el" href="classExiv2_1_1BasicIo.html#ac548d52ef633ac425bd01d17ccd2e7e4" title="Write data to the IO source. Current IO position is advanced by the number of bytes written...">BasicIo::write()</a> method. <a href="#a6fabb0585e55152b54f60c56e837c672">More...</a><br /></td></tr>
<tr class="separator:a6fabb0585e55152b54f60c56e837c672"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a248b4747439e4bcbe9eabce1906ef48b"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Internal_1_1IoWrapper.html#a248b4747439e4bcbe9eabce1906ef48b">putb</a> (<a class="el" href="namespaceExiv2.html#a16f60a5bd4207fe155f6cf93a15efa72">byte</a> data)</td></tr>
<tr class="memdesc:a248b4747439e4bcbe9eabce1906ef48b"><td class="mdescLeft"> </td><td class="mdescRight">Wraps the corresponding <a class="el" href="classExiv2_1_1BasicIo.html#ad16a1fab0f122c8ca11b86d09b03b9a7" title="Write one byte to the IO source. Current IO position is advanced by one byte. ">BasicIo::putb()</a> method. <a href="#a248b4747439e4bcbe9eabce1906ef48b">More...</a><br /></td></tr>
<tr class="separator:a248b4747439e4bcbe9eabce1906ef48b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a5d82c353c309c968a6daa5169a8a7e4a"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a5d82c353c309c968a6daa5169a8a7e4a"></a>
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Internal_1_1IoWrapper.html#a5d82c353c309c968a6daa5169a8a7e4a">setTarget</a> (int id, uint32_t target)</td></tr>
<tr class="memdesc:a5d82c353c309c968a6daa5169a8a7e4a"><td class="mdescLeft"> </td><td class="mdescRight">Wrapper for <a class="el" href="classExiv2_1_1Internal_1_1OffsetWriter.html#a3027f3a66c703571949035345a962ac8" title="Set the target for offset id, i.e., the address to which the offset points. ">OffsetWriter::setTarget()</a>, using an int instead of the enum to reduce include deps. <br /></td></tr>
<tr class="separator:a5d82c353c309c968a6daa5169a8a7e4a"><td class="memSeparator" colspan="2"> </td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Simple IO wrapper to ensure that the header is only written if there is any other data at all. </p>
<p>The wrapper is initialized with an IO reference and a pointer to a TIFF header. Subsequently the wrapper is used by all TIFF write methods. It takes care that the TIFF header is written to the IO first before any other output and only if there is any other data. </p>
</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">Exiv2::Internal::IoWrapper::IoWrapper </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classExiv2_1_1BasicIo.html">BasicIo</a> & </td>
<td class="paramname"><em>io</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="namespaceExiv2.html#a16f60a5bd4207fe155f6cf93a15efa72">byte</a> * </td>
<td class="paramname"><em>pHeader</em>, </td>
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<td class="paramtype">long </td>
<td class="paramname"><em>size</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classExiv2_1_1Internal_1_1OffsetWriter.html">OffsetWriter</a> * </td>
<td class="paramname"><em>pow</em> </td>
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<p>brief Constructor.</p>
<p>The IO wrapper owns none of the objects passed in so the caller is responsible to keep them alive. </p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">int Exiv2::Internal::IoWrapper::putb </td>
<td>(</td>
<td class="paramtype"><a class="el" href="namespaceExiv2.html#a16f60a5bd4207fe155f6cf93a15efa72">byte</a> </td>
<td class="paramname"><em>data</em></td><td>)</td>
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<p>Wraps the corresponding <a class="el" href="classExiv2_1_1BasicIo.html#ad16a1fab0f122c8ca11b86d09b03b9a7" title="Write one byte to the IO source. Current IO position is advanced by one byte. ">BasicIo::putb()</a> method. </p>
<p>Writes the TIFF header to the IO, if it hasn't been written yet, followed by the data passed in the argument. </p>
<p>References <a class="el" href="classExiv2_1_1BasicIo.html#ad16a1fab0f122c8ca11b86d09b03b9a7">Exiv2::BasicIo::putb()</a>, and <a class="el" href="classExiv2_1_1BasicIo.html#ac548d52ef633ac425bd01d17ccd2e7e4">Exiv2::BasicIo::write()</a>.</p>
<p>Referenced by <a class="el" href="classExiv2_1_1Internal_1_1TiffDirectory.html#a3f8b673ea9c2824ccf3feea0838e0e26">Exiv2::Internal::TiffDirectory::doWrite()</a>, <a class="el" href="classExiv2_1_1Internal_1_1TiffDataEntry.html#a476bfad6efb4f99adc7c575142e79f03">Exiv2::Internal::TiffDataEntry::doWriteData()</a>, <a class="el" href="classExiv2_1_1Internal_1_1TiffSubIfd.html#ae34995e3cb7d3534e3b98670f3ff80c9">Exiv2::Internal::TiffSubIfd::doWriteData()</a>, and <a class="el" href="classExiv2_1_1Internal_1_1TiffImageEntry.html#a0fcd09972923cbc46be53a6cf646d43c">Exiv2::Internal::TiffImageEntry::doWriteImage()</a>.</p>
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<td class="memname">long Exiv2::Internal::IoWrapper::write </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="namespaceExiv2.html#a16f60a5bd4207fe155f6cf93a15efa72">byte</a> * </td>
<td class="paramname"><em>pData</em>, </td>
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<td></td>
<td class="paramtype">long </td>
<td class="paramname"><em>wcount</em> </td>
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<td>)</td>
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<p>Wraps the corresponding <a class="el" href="classExiv2_1_1BasicIo.html#ac548d52ef633ac425bd01d17ccd2e7e4" title="Write data to the IO source. Current IO position is advanced by the number of bytes written...">BasicIo::write()</a> method. </p>
<p>Writes the TIFF header to the IO, if it hasn't been written yet, followed by the data passed in the arguments. </p>
<p>References <a class="el" href="classExiv2_1_1BasicIo.html#ac548d52ef633ac425bd01d17ccd2e7e4">Exiv2::BasicIo::write()</a>.</p>
<p>Referenced by <a class="el" href="classExiv2_1_1Internal_1_1TiffEntryBase.html#a9ab324d27420e834e30009f0a45b4fab">Exiv2::Internal::TiffEntryBase::doWrite()</a>, <a class="el" href="classExiv2_1_1Internal_1_1TiffDataEntry.html#a1f7b93956d2285cbf9181d1fb47f06fa">Exiv2::Internal::TiffDataEntry::doWrite()</a>, <a class="el" href="classExiv2_1_1Internal_1_1TiffImageEntry.html#af6d7a1db93df2fb340c4c1014edab170">Exiv2::Internal::TiffImageEntry::doWrite()</a>, <a class="el" href="classExiv2_1_1Internal_1_1TiffDirectory.html#a3f8b673ea9c2824ccf3feea0838e0e26">Exiv2::Internal::TiffDirectory::doWrite()</a>, <a class="el" href="classExiv2_1_1Internal_1_1TiffSubIfd.html#a50b6e7fd2630ba7770107e812dad40d4">Exiv2::Internal::TiffSubIfd::doWrite()</a>, <a class="el" href="classExiv2_1_1Internal_1_1TiffBinaryArray.html#a10eab074460ab0dfe5759fb95a88a087">Exiv2::Internal::TiffBinaryArray::doWrite()</a>, <a class="el" href="classExiv2_1_1Internal_1_1TiffBinaryElement.html#aa4cadcdd7f93fccd93d54df6b003cc17">Exiv2::Internal::TiffBinaryElement::doWrite()</a>, <a class="el" href="classExiv2_1_1Internal_1_1TiffDataEntry.html#a476bfad6efb4f99adc7c575142e79f03">Exiv2::Internal::TiffDataEntry::doWriteData()</a>, <a class="el" href="classExiv2_1_1Internal_1_1TiffImageEntry.html#a0fcd09972923cbc46be53a6cf646d43c">Exiv2::Internal::TiffImageEntry::doWriteImage()</a>, <a class="el" href="classExiv2_1_1Internal_1_1OlympusMnHeader.html#a17912e01e2a9d57175d50d757cbebe2e">Exiv2::Internal::OlympusMnHeader::write()</a>, <a class="el" href="classExiv2_1_1Internal_1_1Olympus2MnHeader.html#a809b42c4047f5c451c453415995b34d9">Exiv2::Internal::Olympus2MnHeader::write()</a>, <a class="el" href="classExiv2_1_1Internal_1_1FujiMnHeader.html#ac1329b1dc15cc6161344b11c5ae8289e">Exiv2::Internal::FujiMnHeader::write()</a>, <a class="el" href="classExiv2_1_1Internal_1_1Nikon2MnHeader.html#a722835d7db60ec41c3ec482259f58dd8">Exiv2::Internal::Nikon2MnHeader::write()</a>, <a class="el" href="classExiv2_1_1Internal_1_1Nikon3MnHeader.html#aedd0a4fa98ac65606cc3409163181ac2">Exiv2::Internal::Nikon3MnHeader::write()</a>, <a class="el" href="classExiv2_1_1Internal_1_1PanasonicMnHeader.html#a5ac61b7f154961443302d6d32974708e">Exiv2::Internal::PanasonicMnHeader::write()</a>, <a class="el" href="classExiv2_1_1Internal_1_1PentaxDngMnHeader.html#a8eec6d60e54bfddd152312a4c4895eb6">Exiv2::Internal::PentaxDngMnHeader::write()</a>, <a class="el" href="classExiv2_1_1Internal_1_1PentaxMnHeader.html#adc724c574da13dc81b9e67baba15a645">Exiv2::Internal::PentaxMnHeader::write()</a>, <a class="el" href="classExiv2_1_1Internal_1_1SigmaMnHeader.html#a1109620868da92456961eaf5f90cbfb2">Exiv2::Internal::SigmaMnHeader::write()</a>, and <a class="el" href="classExiv2_1_1Internal_1_1SonyMnHeader.html#a4b803475f64cc81bc871c7e58a305fb0">Exiv2::Internal::SonyMnHeader::write()</a>.</p>
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<hr/>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="tiffcomposite__int_8hpp.html">tiffcomposite_int.hpp</a></li>
<li>tiffcomposite.cpp</li>
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