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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Dillo: dw::core::Imgbuf Class Reference</title>
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<li class="navelem"><a class="el" href="namespacedw.html">dw</a></li><li class="navelem"><a class="el" href="namespacedw_1_1core.html">core</a></li><li class="navelem"><a class="el" href="classdw_1_1core_1_1Imgbuf.html">Imgbuf</a></li> </ul>
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<div class="header">
<div class="summary">
<a href="classdw_1_1core_1_1Imgbuf.html#pub-types">Public Types</a> |
<a href="classdw_1_1core_1_1Imgbuf.html#pub-methods">Public Member Functions</a> |
<a href="classdw_1_1core_1_1Imgbuf-members.html">List of all members</a> </div>
<div class="headertitle">
<div class="title">dw::core::Imgbuf Class Reference<span class="mlabels"><span class="mlabel">abstract</span></span></div> </div>
</div><!--header-->
<div class="contents">
<p>The platform independent interface for image buffers.
<a href="classdw_1_1core_1_1Imgbuf.html#details">More...</a></p>
<p><code>#include <<a class="el" href="imgbuf_8hh_source.html">imgbuf.hh</a>></code></p>
<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:a6621e3255d2c6e7088dd5bea0537653b"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653b">Type</a> { <br />
  <a class="el" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653ba1f5203909a58ec86dd39a83f04b16a1d">RGB</a>,
<a class="el" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653ba06eaf6140518f0c7f1323201905f7813">RGBA</a>,
<a class="el" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653ba453245023736fd73f888b18d703aed25">GRAY</a>,
<a class="el" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653ba33ad87a981f35dfeb2ddaa17589c4816">INDEXED</a>,
<br />
  <a class="el" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653ba92f4759e8eabd27dd153836fe91a1147">INDEXED_ALPHA</a>
<br />
}</td></tr>
<tr class="separator:a6621e3255d2c6e7088dd5bea0537653b"><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 class="memitem:a23c53c1ac07f03bfccb2d6a5d40b1c3a"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a23c53c1ac07f03bfccb2d6a5d40b1c3a">Imgbuf</a> ()</td></tr>
<tr class="separator:a23c53c1ac07f03bfccb2d6a5d40b1c3a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1561ef1488a9002f5ccf1e7c8c1d435e"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a1561ef1488a9002f5ccf1e7c8c1d435e">~Imgbuf</a> ()</td></tr>
<tr class="separator:a1561ef1488a9002f5ccf1e7c8c1d435e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a69f7b999918293dc3a9b97ae0d0d09da"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a69f7b999918293dc3a9b97ae0d0d09da">setCMap</a> (int *colors, int num_colors)=0</td></tr>
<tr class="separator:a69f7b999918293dc3a9b97ae0d0d09da"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0b738f2672de023650c657f16603a5c0"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a0b738f2672de023650c657f16603a5c0">copyRow</a> (int row, const <a class="el" href="namespacedw_1_1core.html#aadedde327523bff3d51f29a0951e9541">byte</a> *data)=0</td></tr>
<tr class="separator:a0b738f2672de023650c657f16603a5c0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a21b004879b62236989b3d9020f0ee2a7"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a21b004879b62236989b3d9020f0ee2a7">newScan</a> ()=0</td></tr>
<tr class="separator:a21b004879b62236989b3d9020f0ee2a7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0d4ea20f9befc404149855788098fd49"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classdw_1_1core_1_1Imgbuf.html">Imgbuf</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a0d4ea20f9befc404149855788098fd49">getScaledBuf</a> (int width, int height)=0</td></tr>
<tr class="separator:a0d4ea20f9befc404149855788098fd49"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8722f429e4d9d5dfc5270676d1ccc599"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a8722f429e4d9d5dfc5270676d1ccc599">getRowArea</a> (int row, <a class="el" href="classdw_1_1core_1_1Rectangle.html">dw::core::Rectangle</a> *area)=0</td></tr>
<tr class="separator:a8722f429e4d9d5dfc5270676d1ccc599"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0c1e8d2d6eb12cd88c0834335295d6c0"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a0c1e8d2d6eb12cd88c0834335295d6c0">getRootWidth</a> ()=0</td></tr>
<tr class="separator:a0c1e8d2d6eb12cd88c0834335295d6c0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae0241d06552605b48b3ec09dfb5ff9f6"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#ae0241d06552605b48b3ec09dfb5ff9f6">getRootHeight</a> ()=0</td></tr>
<tr class="separator:ae0241d06552605b48b3ec09dfb5ff9f6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae636d035da42fb51153052f99cc9e513"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classdw_1_1core_1_1Imgbuf.html">Imgbuf</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#ae636d035da42fb51153052f99cc9e513">createSimilarBuf</a> (int width, int height)=0</td></tr>
<tr class="separator:ae636d035da42fb51153052f99cc9e513"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae9fd04eb42ef33a6742ebd1a70d8a178"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#ae9fd04eb42ef33a6742ebd1a70d8a178">copyTo</a> (<a class="el" href="classdw_1_1core_1_1Imgbuf.html">Imgbuf</a> *dest, int xDestRoot, int yDestRoot, int xSrc, int ySrc, int widthSrc, int heightSrc)=0</td></tr>
<tr class="separator:ae9fd04eb42ef33a6742ebd1a70d8a178"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a18f8070e47aefd58eaa24708cfa3de1a"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a18f8070e47aefd58eaa24708cfa3de1a">ref</a> ()=0</td></tr>
<tr class="separator:a18f8070e47aefd58eaa24708cfa3de1a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab5003fc515d777fdad9ff893b4bd557b"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#ab5003fc515d777fdad9ff893b4bd557b">unref</a> ()=0</td></tr>
<tr class="separator:ab5003fc515d777fdad9ff893b4bd557b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae068c23751cfd78268480072871ab784"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#ae068c23751cfd78268480072871ab784">lastReference</a> ()=0</td></tr>
<tr class="separator:ae068c23751cfd78268480072871ab784"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7f53b6374bb87c861790a12a47fb3048"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a7f53b6374bb87c861790a12a47fb3048">setDeleteOnUnref</a> (bool deleteOnUnref)=0</td></tr>
<tr class="separator:a7f53b6374bb87c861790a12a47fb3048"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abb5cec4224c3e46367d1fc8b29fa1a94"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classdw_1_1core_1_1Imgbuf.html#abb5cec4224c3e46367d1fc8b29fa1a94">isReferred</a> ()=0</td></tr>
<tr class="separator:abb5cec4224c3e46367d1fc8b29fa1a94"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_classlout_1_1object_1_1Object"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classlout_1_1object_1_1Object')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classlout_1_1object_1_1Object.html">lout::object::Object</a></td></tr>
<tr class="memitem:a9fef8a29a41124cb0370f4dc0410fb5b inherit pub_methods_classlout_1_1object_1_1Object"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1object_1_1Object.html#a9fef8a29a41124cb0370f4dc0410fb5b">~Object</a> ()</td></tr>
<tr class="memdesc:a9fef8a29a41124cb0370f4dc0410fb5b inherit pub_methods_classlout_1_1object_1_1Object"><td class="mdescLeft"> </td><td class="mdescRight">The destructor is defined as virtual (but not abstract), so that destruction of <a class="el" href="classlout_1_1object_1_1Object.html" title="This is the base class for many other classes, which defines very common virtual methods. ">Object</a>'s works properly. <a href="classdw_1_1core_1_1Imgbuf.html#a9fef8a29a41124cb0370f4dc0410fb5b">More...</a><br /></td></tr>
<tr class="separator:a9fef8a29a41124cb0370f4dc0410fb5b inherit pub_methods_classlout_1_1object_1_1Object"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af4bc95cee49a71d32c7b24505ccc9397 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1object_1_1Object.html#af4bc95cee49a71d32c7b24505ccc9397">equals</a> (<a class="el" href="classlout_1_1object_1_1Object.html">Object</a> *other)</td></tr>
<tr class="memdesc:af4bc95cee49a71d32c7b24505ccc9397 inherit pub_methods_classlout_1_1object_1_1Object"><td class="mdescLeft"> </td><td class="mdescRight">Returns, whether two objects are equal. <a href="classdw_1_1core_1_1Imgbuf.html#af4bc95cee49a71d32c7b24505ccc9397">More...</a><br /></td></tr>
<tr class="separator:af4bc95cee49a71d32c7b24505ccc9397 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad81c4136418c9b44253568f9ae069006 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1object_1_1Object.html#ad81c4136418c9b44253568f9ae069006">hashValue</a> ()</td></tr>
<tr class="memdesc:ad81c4136418c9b44253568f9ae069006 inherit pub_methods_classlout_1_1object_1_1Object"><td class="mdescLeft"> </td><td class="mdescRight">Return a hash value for the object. <a href="classdw_1_1core_1_1Imgbuf.html#ad81c4136418c9b44253568f9ae069006">More...</a><br /></td></tr>
<tr class="separator:ad81c4136418c9b44253568f9ae069006 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7ab36efad0df9a036b9252a9564a8cd4 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classlout_1_1object_1_1Object.html">Object</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1object_1_1Object.html#a7ab36efad0df9a036b9252a9564a8cd4">clone</a> ()</td></tr>
<tr class="memdesc:a7ab36efad0df9a036b9252a9564a8cd4 inherit pub_methods_classlout_1_1object_1_1Object"><td class="mdescLeft"> </td><td class="mdescRight">Return an exact copy of the object. <a href="classdw_1_1core_1_1Imgbuf.html#a7ab36efad0df9a036b9252a9564a8cd4">More...</a><br /></td></tr>
<tr class="separator:a7ab36efad0df9a036b9252a9564a8cd4 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad1ad2f2b36fc7a7bead883caa64b0082 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1object_1_1Object.html#ad1ad2f2b36fc7a7bead883caa64b0082">intoStringBuffer</a> (<a class="el" href="classlout_1_1misc_1_1StringBuffer.html">misc::StringBuffer</a> *sb)</td></tr>
<tr class="memdesc:ad1ad2f2b36fc7a7bead883caa64b0082 inherit pub_methods_classlout_1_1object_1_1Object"><td class="mdescLeft"> </td><td class="mdescRight">Store a textual representation of the object in a <a class="el" href="classlout_1_1misc_1_1StringBuffer.html" title="A class for fast concatenation of a large number of strings. ">misc::StringBuffer</a>. <a href="classdw_1_1core_1_1Imgbuf.html#ad1ad2f2b36fc7a7bead883caa64b0082">More...</a><br /></td></tr>
<tr class="separator:ad1ad2f2b36fc7a7bead883caa64b0082 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad7aeadc7934293197110d550abda81ff inherit pub_methods_classlout_1_1object_1_1Object"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1object_1_1Object.html#ad7aeadc7934293197110d550abda81ff">toString</a> ()</td></tr>
<tr class="memdesc:ad7aeadc7934293197110d550abda81ff inherit pub_methods_classlout_1_1object_1_1Object"><td class="mdescLeft"> </td><td class="mdescRight">Use <a class="el" href="classlout_1_1object_1_1Object.html#ad1ad2f2b36fc7a7bead883caa64b0082" title="Store a textual representation of the object in a misc::StringBuffer. ">object::Object::intoStringBuffer</a> to return a textual representation of the object. <a href="classdw_1_1core_1_1Imgbuf.html#ad7aeadc7934293197110d550abda81ff">More...</a><br /></td></tr>
<tr class="separator:ad7aeadc7934293197110d550abda81ff inherit pub_methods_classlout_1_1object_1_1Object"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8b53443ca61b25e794157792f5d3a956 inherit pub_methods_classlout_1_1object_1_1Object"><td class="memItemLeft" align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1object_1_1Object.html#a8b53443ca61b25e794157792f5d3a956">sizeOf</a> ()</td></tr>
<tr class="memdesc:a8b53443ca61b25e794157792f5d3a956 inherit pub_methods_classlout_1_1object_1_1Object"><td class="mdescLeft"> </td><td class="mdescRight">Return the number of bytes, this object totally uses. <a href="classdw_1_1core_1_1Imgbuf.html#a8b53443ca61b25e794157792f5d3a956">More...</a><br /></td></tr>
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<tr class="inherit_header pub_methods_classlout_1_1signal_1_1ObservedObject"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classlout_1_1signal_1_1ObservedObject')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classlout_1_1signal_1_1ObservedObject.html">lout::signal::ObservedObject</a></td></tr>
<tr class="memitem:a538cf3bb32b7d2a83db2b366fba30cf3 inherit pub_methods_classlout_1_1signal_1_1ObservedObject"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1signal_1_1ObservedObject.html#a538cf3bb32b7d2a83db2b366fba30cf3">~ObservedObject</a> ()</td></tr>
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<tr class="memitem:a2f381072ce5c4b98ce737109696b5fc6 inherit pub_methods_classlout_1_1signal_1_1ObservedObject"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlout_1_1signal_1_1ObservedObject.html#a2f381072ce5c4b98ce737109696b5fc6">connectDeletion</a> (<a class="el" href="classlout_1_1signal_1_1ObservedObject_1_1DeletionReceiver.html">DeletionReceiver</a> *receiver)</td></tr>
<tr class="separator:a2f381072ce5c4b98ce737109696b5fc6 inherit pub_methods_classlout_1_1signal_1_1ObservedObject"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>The platform independent interface for image buffers. </p>
<p>Image buffers depend on the platform (see <a class="el" href="dw-images-and-backgrounds.html">Images and Backgrounds in Dw</a>), but have this general, platform independent interface. The purpose of an image buffer is</p>
<ol>
<li>
storing the image data, </li>
<li>
handling scaled versions of this buffer, and </li>
<li>
drawing. </li>
</ol>
<p>The latter must be done independently from the window.</p>
<h3>Creating</h3>
<p>Image buffers are created by calling <a class="el" href="classdw_1_1core_1_1Platform.html#aebc03cf0f6b9600be41a848fa518ed21" title="Create a (platform speficic) image buffer. ">dw::core::Platform::createImgbuf</a>.</p>
<h3>Storing Image Data</h3>
<p><a class="el" href="classdw_1_1core_1_1Imgbuf.html" title="The platform independent interface for image buffers. ">dw::core::Imgbuf</a> supports five image types, which are listed in the table below. The representation defines, how the colors are stored within the data, which is passed to <a class="el" href="classdw_1_1core_1_1Imgbuf.html#a0b738f2672de023650c657f16603a5c0">dw::core::Imgbuf::copyRow</a>.</p>
<table class="doxtable">
<tr>
<th>Type (<a class="el" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653b">dw::core::Imgbuf::Type</a>) </th><th>Bytes per Pixel </th><th>Representation </th></tr>
<tr>
<td><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653ba1f5203909a58ec86dd39a83f04b16a1d">dw::core::Imgbuf::RGB</a> </td><td>3 </td><td>red, green, blue </td></tr>
<tr>
<td><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653ba06eaf6140518f0c7f1323201905f7813">dw::core::Imgbuf::RGBA</a> </td><td>4 </td><td>red, green, blue, alpha </td></tr>
<tr>
<td><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653ba453245023736fd73f888b18d703aed25">dw::core::Imgbuf::GRAY</a> </td><td>1 </td><td>gray value </td></tr>
<tr>
<td><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653ba33ad87a981f35dfeb2ddaa17589c4816">dw::core::Imgbuf::INDEXED</a> </td><td>1 </td><td>index to colormap </td></tr>
<tr>
<td><a class="el" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653ba92f4759e8eabd27dd153836fe91a1147">dw::core::Imgbuf::INDEXED_ALPHA</a> </td><td>1 </td><td>index to colormap </td></tr>
</table>
<p>The last two types need a colormap, which is set by <a class="el" href="classdw_1_1core_1_1Imgbuf.html#a69f7b999918293dc3a9b97ae0d0d09da">dw::core::Imgbuf::setCMap</a>, which must be called before <a class="el" href="classdw_1_1core_1_1Imgbuf.html#a0b738f2672de023650c657f16603a5c0">dw::core::Imgbuf::copyRow</a>. This function expects the colors as 32 bit unsigned integers, which have the format 0xrrbbgg (for indexed images), or 0xaarrggbb (for indexed alpha), respectively.</p>
<h3>Scaling</h3>
<p>The buffer with the original size, which was created by <a class="el" href="classdw_1_1core_1_1Platform.html#aebc03cf0f6b9600be41a848fa518ed21" title="Create a (platform speficic) image buffer. ">dw::core::Platform::createImgbuf</a>, is called root buffer. <a class="el" href="classdw_1_1core_1_1Imgbuf.html" title="The platform independent interface for image buffers. ">Imgbuf</a> provides the ability to scale buffers. Generally, both root buffers, as well as scaled buffers, may be shared, memory management is done by reference counters.</p>
<p>Via <a class="el" href="classdw_1_1core_1_1Imgbuf.html#a0d4ea20f9befc404149855788098fd49">dw::core::Imgbuf::getScaledBuf</a>, you can retrieve a scaled buffer. Generally, something like this must work always, in an efficient way:</p>
<div class="fragment"><div class="line"><a class="code" href="classdw_1_1core_1_1Imgbuf.html">dw::core::Imgbuf</a> *curBuf, *oldBuf;</div>
<div class="line"><span class="keywordtype">int</span> width, heigt,</div>
<div class="line"><span class="comment">// ...</span></div>
<div class="line">oldBuf = curBuf;</div>
<div class="line">curBuf = oldBuf-><a class="code" href="classdw_1_1core_1_1Imgbuf.html#a0d4ea20f9befc404149855788098fd49">getScaledBuf</a>(oldBuf, width, height);</div>
<div class="line">oldBuf-><a class="code" href="classdw_1_1core_1_1Imgbuf.html#ab5003fc515d777fdad9ff893b4bd557b">unref</a>();</div>
</div><!-- fragment --><p><em>oldBuf</em> may both be a root buffer, or a scaled buffer.</p>
<p>The root buffer keeps a list of all children, and all methods operating on the image data (<a class="el" href="classdw_1_1core_1_1Imgbuf.html#a0b738f2672de023650c657f16603a5c0">dw::core::Imgbuf::copyRow</a> and <a class="el" href="classdw_1_1core_1_1Imgbuf.html#a69f7b999918293dc3a9b97ae0d0d09da">dw::core::Imgbuf::setCMap</a>) are delegated to the scaled buffers, when processed, and inherited, when a new scaled buffer is created. This means, that they must only be performed for the root buffer.</p>
<p>A possible implementation could be (<a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html">dw::fltk::FltkImgbuf</a> does it this way):</p>
<ul>
<li>
<p class="startli">If the method is called with an already scaled image buffer, this is delegated to the root buffer.</p>
<p class="endli"></p>
</li>
<li>
<p class="startli">If the given size is the original size, the root buffer is returned, with an increased reference counter.</p>
<p class="endli"></p>
</li>
<li>
<p class="startli">Otherwise, if this buffer has already been scaled to the given size, return this scaled buffer, with an increased reference counter.</p>
<p class="endli"></p>
</li>
<li>
Otherwise, return a new scaled buffer with reference counter 1. </li>
</ul>
<p>Special care is to be taken, when the root buffer is not used anymore, i.e. after <a class="el" href="classdw_1_1core_1_1Imgbuf.html#ab5003fc515d777fdad9ff893b4bd557b">dw::core::Imgbuf::unref</a> the reference counter is 0, but there are still scaled buffers. Since all methods operating on the image data (<a class="el" href="classdw_1_1core_1_1Imgbuf.html#a0b738f2672de023650c657f16603a5c0">dw::core::Imgbuf::copyRow</a> and <a class="el" href="classdw_1_1core_1_1Imgbuf.html#a69f7b999918293dc3a9b97ae0d0d09da">dw::core::Imgbuf::setCMap</a>) are called for the root buffer, the root buffer is still needed, and so must not be deleted at this point. This is, how <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html">dw::fltk::FltkImgbuf</a> solves this problem:</p>
<ul>
<li>
<p class="startli"><a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a33d7ac879868da99b996447d645dd3d9">dw::fltk::FltkImgbuf::unref</a> does, for root buffers, check, not only whether <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a16df21babefabcc22ede4720f36ac1a9">dw::fltk::FltkImgbuf::refCount</a> is 0, but also, whether there are children left. When the latter is the case, the buffer is not deleted.</p>
<p class="endli"></p>
</li>
<li>
There is an additional check in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#aab8040fd9f1806038ae8c63c92b45a88" title="This method is called for the root buffer, when a scaled buffer removed. ">dw::fltk::FltkImgbuf::detachScaledBuf</a>, which deals with the case, that <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a16df21babefabcc22ede4720f36ac1a9">dw::fltk::FltkImgbuf::refCount</a> is 0, and the last scaled buffer is removed. </li>
</ul>
<p>In the following example:</p>
<div class="fragment"><div class="line"><a class="code" href="classdw_1_1fltk_1_1FltkPlatform.html">dw::fltk::FltkPlatform</a> *<a class="code" href="dw__anchors__test_8cc.html#abf91980ed932e38752517cf0b563adf7">platform</a> = <span class="keyword">new</span> <a class="code" href="classdw_1_1fltk_1_1FltkPlatform.html">dw::fltk::FltkPlatform</a> ();</div>
<div class="line"><a class="code" href="classdw_1_1core_1_1Layout.html">dw::core::Layout</a> *<a class="code" href="dw__anchors__test_8cc.html#aa9b7b9846e3f42cc43273337240c6a8a">layout</a> = <span class="keyword">new</span> <a class="code" href="classdw_1_1core_1_1Layout.html">dw::core::Layout</a> (platform);</div>
<div class="line"></div>
<div class="line"><a class="code" href="classdw_1_1core_1_1Imgbuf.html">dw::core::Imgbuf</a> *rootbuf =</div>
<div class="line"> layout-><a class="code" href="classdw_1_1core_1_1Layout.html#acdc2f96d0067cac2b7a4b87d07f06cb5">createImgbuf</a> (<a class="code" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653ba1f5203909a58ec86dd39a83f04b16a1d">dw::core::Imgbuf::RGB</a>, 100, 100);</div>
<div class="line"><a class="code" href="classdw_1_1core_1_1Imgbuf.html">dw::core::Imgbuf</a> *scaledbuf = rootbuf-><a class="code" href="classdw_1_1core_1_1Imgbuf.html#a0d4ea20f9befc404149855788098fd49">getScaledBuf</a> (50, 50);</div>
<div class="line">rootbuf-><a class="code" href="classdw_1_1core_1_1Imgbuf.html#ab5003fc515d777fdad9ff893b4bd557b">unref</a> ();</div>
<div class="line">scaledbuf-><a class="code" href="classdw_1_1core_1_1Imgbuf.html#ab5003fc515d777fdad9ff893b4bd557b">unref</a> ();</div>
</div><!-- fragment --><p>the root buffer is not deleted, when <a class="el" href="classdw_1_1core_1_1Imgbuf.html#ab5003fc515d777fdad9ff893b4bd557b">dw::core::Imgbuf::unref</a> is called, since a scaled buffer is left. After calling <a class="el" href="classdw_1_1core_1_1Imgbuf.html#ab5003fc515d777fdad9ff893b4bd557b">dw::core::Imgbuf::unref</a> for the scaled buffer, it is deleted, and after it, the root buffer.</p>
<h3>Drawing</h3>
<p><a class="el" href="classdw_1_1core_1_1Imgbuf.html" title="The platform independent interface for image buffers. ">dw::core::Imgbuf</a> provides no methods for drawing, instead, this is done by the views (implementation of <a class="el" href="classdw_1_1core_1_1View.html" title="An interface to encapsulate platform dependent drawing. ">dw::core::View</a>).</p>
<p>There are two situations, when drawing is necessary:</p>
<ol>
<li>
<p class="startli">To react on expose events, the function <a class="el" href="classdw_1_1core_1_1View.html#a07f2328b411be00f766761c42b4df069">dw::core::View::drawImage</a> should be used, with the following parameters: </p><ul>
<li>
of course, the image buffer, </li>
<li>
where the root of the image would be displayed (as <em>xRoot</em> and <em>yRoot</em>), and </li>
<li>
the region within the image, which should be displayed (<em>x</em>, <em>y</em>, <em>width</em>, <em>height</em>). </li>
</ul>
<p class="endli"></p>
</li>
<li>
When a row has been copied, it has to be drawn. To determine the area, which has to be drawn, the <a class="el" href="classdw_1_1core_1_1Imgbuf.html#a8722f429e4d9d5dfc5270676d1ccc599">dw::core::Imgbuf::getRowArea</a> should be used. The result can then passed to <a class="el" href="classdw_1_1core_1_1View.html#a07f2328b411be00f766761c42b4df069">dw::core::View::drawImage</a>. </li>
</ol>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="dw-images-and-backgrounds.html">Images and Backgrounds in Dw</a> </dd></dl>
</div><h2 class="groupheader">Member Enumeration Documentation</h2>
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<td class="memname">enum <a class="el" href="classdw_1_1core_1_1Imgbuf.html#a6621e3255d2c6e7088dd5bea0537653b">dw::core::Imgbuf::Type</a></td>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a class="anchor" id="a6621e3255d2c6e7088dd5bea0537653ba1f5203909a58ec86dd39a83f04b16a1d"></a>RGB </td><td class="fielddoc">
</td></tr>
<tr><td class="fieldname"><a class="anchor" id="a6621e3255d2c6e7088dd5bea0537653ba06eaf6140518f0c7f1323201905f7813"></a>RGBA </td><td class="fielddoc">
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<tr><td class="fieldname"><a class="anchor" id="a6621e3255d2c6e7088dd5bea0537653ba453245023736fd73f888b18d703aed25"></a>GRAY </td><td class="fielddoc">
</td></tr>
<tr><td class="fieldname"><a class="anchor" id="a6621e3255d2c6e7088dd5bea0537653ba33ad87a981f35dfeb2ddaa17589c4816"></a>INDEXED </td><td class="fielddoc">
</td></tr>
<tr><td class="fieldname"><a class="anchor" id="a6621e3255d2c6e7088dd5bea0537653ba92f4759e8eabd27dd153836fe91a1147"></a>INDEXED_ALPHA </td><td class="fielddoc">
</td></tr>
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</div>
</div>
<h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">dw::core::Imgbuf::Imgbuf </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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<p>References <a class="el" href="debug__rtfl_8hh.html#aa1136f0f6e865ac3b967244398e44f7a">DBG_OBJ_BASECLASS</a>, and <a class="el" href="debug__rtfl_8hh.html#a25c125b618655652ac04cd9228badca8">DBG_OBJ_CREATE</a>.</p>
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<td class="memname">dw::core::Imgbuf::~Imgbuf </td>
<td>(</td>
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<p>References <a class="el" href="debug__rtfl_8hh.html#a2104cbf69f71194098e78715c21a4d8d">DBG_OBJ_DELETE</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">virtual void dw::core::Imgbuf::copyRow </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>row</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="namespacedw_1_1core.html#aadedde327523bff3d51f29a0951e9541">byte</a> * </td>
<td class="paramname"><em>data</em> </td>
</tr>
<tr>
<td></td>
<td>)</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>Implemented in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a4d563d47cc718381559e67d2c217f460">dw::fltk::FltkImgbuf</a>.</p>
<p>Referenced by <a class="el" href="dw__image__background_8cc.html#afca7ed8c64e020e91c607ee12923bc2b">imageDrawTimeout()</a>.</p>
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<a class="anchor" id="ae9fd04eb42ef33a6742ebd1a70d8a178"></a>
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<td class="memname">virtual void dw::core::Imgbuf::copyTo </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classdw_1_1core_1_1Imgbuf.html">Imgbuf</a> * </td>
<td class="paramname"><em>dest</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>xDestRoot</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>yDestRoot</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>xSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>ySrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>widthSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>heightSrc</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
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<p>Copies another image buffer into this image buffer. </p>
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<td class="memname">virtual <a class="el" href="classdw_1_1core_1_1Imgbuf.html">Imgbuf</a>* dw::core::Imgbuf::createSimilarBuf </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>width</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>height</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
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<p>Creates an image buffer with same parameters (type, gamma etc.) except size. </p>
<p>Implemented in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a67f869f43f8f63260f04f20bc5420824">dw::fltk::FltkImgbuf</a>.</p>
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<a class="anchor" id="ae0241d06552605b48b3ec09dfb5ff9f6"></a>
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<td class="memname">virtual int dw::core::Imgbuf::getRootHeight </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
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<p>Implemented in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a55f6afaa647ce138d5c313b8c73975c0">dw::fltk::FltkImgbuf</a>.</p>
<p>Referenced by <a class="el" href="namespacedw_1_1core_1_1style.html#ab961f491ea54d03364861356afa32fb5">dw::core::style::calcBackgroundRelatedValues()</a>, <a class="el" href="namespacedw_1_1core_1_1style.html#a24789376198ca9b48d4e3335f5a6d084">dw::core::style::drawBackgroundImage()</a>, <a class="el" href="classdw_1_1core_1_1style_1_1StyleImage_1_1ExternalImgRenderer.html#a82294e7bae2dbea29f182928fb2e9a2b">dw::core::style::StyleImage::ExternalImgRenderer::drawRow()</a>, and <a class="el" href="classdw_1_1Image.html#aba1218df074496b12176464c43022f7c">dw::Image::setBuffer()</a>.</p>
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<a class="anchor" id="a0c1e8d2d6eb12cd88c0834335295d6c0"></a>
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<td class="memname">virtual int dw::core::Imgbuf::getRootWidth </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
</tr>
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<p>Implemented in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a787d41151bda7b77a640a9d1cff9fe10">dw::fltk::FltkImgbuf</a>.</p>
<p>Referenced by <a class="el" href="namespacedw_1_1core_1_1style.html#ab961f491ea54d03364861356afa32fb5">dw::core::style::calcBackgroundRelatedValues()</a>, <a class="el" href="namespacedw_1_1core_1_1style.html#a24789376198ca9b48d4e3335f5a6d084">dw::core::style::drawBackgroundImage()</a>, <a class="el" href="classdw_1_1core_1_1style_1_1StyleImage_1_1ExternalImgRenderer.html#a82294e7bae2dbea29f182928fb2e9a2b">dw::core::style::StyleImage::ExternalImgRenderer::drawRow()</a>, and <a class="el" href="classdw_1_1Image.html#aba1218df074496b12176464c43022f7c">dw::Image::setBuffer()</a>.</p>
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<a class="anchor" id="a8722f429e4d9d5dfc5270676d1ccc599"></a>
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<td class="memname">virtual void dw::core::Imgbuf::getRowArea </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>row</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classdw_1_1core_1_1Rectangle.html">dw::core::Rectangle</a> * </td>
<td class="paramname"><em>area</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
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<p>Implemented in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a13c088bac2702745f9847f136251e00b">dw::fltk::FltkImgbuf</a>.</p>
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<a class="anchor" id="a0d4ea20f9befc404149855788098fd49"></a>
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<td class="memname">virtual <a class="el" href="classdw_1_1core_1_1Imgbuf.html">Imgbuf</a>* dw::core::Imgbuf::getScaledBuf </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>width</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>height</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Implemented in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a8d8bac7eb04d3b0992fffa83cedd0c10">dw::fltk::FltkImgbuf</a>.</p>
<p>Referenced by <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a8d8bac7eb04d3b0992fffa83cedd0c10">dw::fltk::FltkImgbuf::getScaledBuf()</a>, <a class="el" href="classdw_1_1Image.html#aba1218df074496b12176464c43022f7c">dw::Image::setBuffer()</a>, <a class="el" href="classdw_1_1Image.html#a4d0604bb2fbdc8a700a4813825ca931c">dw::Image::sizeAllocateImpl()</a>, <a class="el" href="dw__imgbuf__mem__test_8cc.html#af564fe368140ad188f818d9ad8d3266b">solution1()</a>, <a class="el" href="dw__imgbuf__mem__test_8cc.html#a1056f407c57f9c4dd5c9777872b3f872">solution2()</a>, and <a class="el" href="dw__imgbuf__mem__test_8cc.html#a31bd52927522a80afe86cd087d127c39">solution3()</a>.</p>
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<a class="anchor" id="abb5cec4224c3e46367d1fc8b29fa1a94"></a>
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<td class="memname">virtual bool dw::core::Imgbuf::isReferred </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
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<dl class="todo"><dt><b><a class="el" href="todo.html#_todo000010">Todo:</a></b></dt><dd>Comment </dd></dl>
<p>Implemented in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#ae57649ed4e40e3d23037dcf4d9d046b6">dw::fltk::FltkImgbuf</a>.</p>
<p>Referenced by <a class="el" href="dw__imgbuf__mem__test_8cc.html#a1056f407c57f9c4dd5c9777872b3f872">solution2()</a>.</p>
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<a class="anchor" id="ae068c23751cfd78268480072871ab784"></a>
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<td class="memname">virtual bool dw::core::Imgbuf::lastReference </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
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<dl class="todo"><dt><b><a class="el" href="todo.html#_todo000008">Todo:</a></b></dt><dd>Comment </dd></dl>
<p>Implemented in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a2d8a25fd944c414742b9e4ced06e0855">dw::fltk::FltkImgbuf</a>.</p>
<p>Referenced by <a class="el" href="dw__imgbuf__mem__test_8cc.html#af564fe368140ad188f818d9ad8d3266b">solution1()</a>.</p>
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<a class="anchor" id="a21b004879b62236989b3d9020f0ee2a7"></a>
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<td class="memname">virtual void dw::core::Imgbuf::newScan </td>
<td>(</td>
<td class="paramname"></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>Implemented in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#aaa4e2da28ec8be3e6f1c8e9f9b3f0c2b">dw::fltk::FltkImgbuf</a>.</p>
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<a class="anchor" id="a18f8070e47aefd58eaa24708cfa3de1a"></a>
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<td class="memname">virtual void dw::core::Imgbuf::ref </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
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<p>Implemented in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a9caf20b900600e69f026f1fa2a9cbb41">dw::fltk::FltkImgbuf</a>.</p>
<p>Referenced by <a class="el" href="classdw_1_1Image.html#aba1218df074496b12176464c43022f7c">dw::Image::setBuffer()</a>, and <a class="el" href="dw__imgbuf__mem__test_8cc.html#af564fe368140ad188f818d9ad8d3266b">solution1()</a>.</p>
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<a class="anchor" id="a69f7b999918293dc3a9b97ae0d0d09da"></a>
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<td class="memname">virtual void dw::core::Imgbuf::setCMap </td>
<td>(</td>
<td class="paramtype">int * </td>
<td class="paramname"><em>colors</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>num_colors</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
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<p>Implemented in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a02a0f7fdbf64ac69e24f0776e19a110c">dw::fltk::FltkImgbuf</a>.</p>
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<td class="memname">virtual void dw::core::Imgbuf::setDeleteOnUnref </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"><em>deleteOnUnref</em></td><td>)</td>
<td></td>
</tr>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
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<dl class="todo"><dt><b><a class="el" href="todo.html#_todo000009">Todo:</a></b></dt><dd>Comment </dd></dl>
<p>Implemented in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a539e05a1fea4cd287083fd7747ff6f06">dw::fltk::FltkImgbuf</a>.</p>
<p>Referenced by <a class="el" href="dw__imgbuf__mem__test_8cc.html#a1056f407c57f9c4dd5c9777872b3f872">solution2()</a>.</p>
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<td class="memname">virtual void dw::core::Imgbuf::unref </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">pure virtual</span></span> </td>
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<p>Implemented in <a class="el" href="classdw_1_1fltk_1_1FltkImgbuf.html#a33d7ac879868da99b996447d645dd3d9">dw::fltk::FltkImgbuf</a>.</p>
<p>Referenced by <a class="el" href="classdw_1_1Image.html#aba1218df074496b12176464c43022f7c">dw::Image::setBuffer()</a>, <a class="el" href="classdw_1_1Image.html#a4d0604bb2fbdc8a700a4813825ca931c">dw::Image::sizeAllocateImpl()</a>, <a class="el" href="dw__imgbuf__mem__test_8cc.html#af564fe368140ad188f818d9ad8d3266b">solution1()</a>, <a class="el" href="dw__imgbuf__mem__test_8cc.html#a1056f407c57f9c4dd5c9777872b3f872">solution2()</a>, and <a class="el" href="dw__imgbuf__mem__test_8cc.html#a31bd52927522a80afe86cd087d127c39">solution3()</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>dw/<a class="el" href="imgbuf_8hh_source.html">imgbuf.hh</a></li>
</ul>
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