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<h1>crop.cpp File Reference</h1><code>#include <qimage.h></code><br/>
<code>#include <qstring.h></code><br/>
<code>#include "<a class="el" href="crop_8h_source.html">crop.h</a>"</code><br/>
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Include dependency graph for crop.cpp:</div>
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<p><a href="crop_8cpp_source.html">Go to the source code of this file.</a></p>
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<tr><td colspan="2"><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QImage * </td><td class="memItemRight" valign="bottom"><a class="el" href="crop_8cpp.html#a34a3b1a1cf40e0cc8ef3c30da641dac8">cropImage</a> (QString filename, QPoint <a class="el" href="redEye__internal_8h.html#a6a9aebec61b1a6732045c187a6156f4f">topLeft</a>, QPoint <a class="el" href="redEye__internal_8h.html#a75e80edb449bc9a0925be60719132bd0">bottomRight</a>)</td></tr>
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<hr/><h2>Function Documentation</h2>
<a class="anchor" id="a34a3b1a1cf40e0cc8ef3c30da641dac8"></a><!-- doxytag: member="crop.cpp::cropImage" ref="a34a3b1a1cf40e0cc8ef3c30da641dac8" args="(QString filename, QPoint topLeft, QPoint bottomRight)" -->
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<td class="memname">QImage* cropImage </td>
<td>(</td>
<td class="paramtype">QString </td>
<td class="paramname"> <em>filename</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">QPoint </td>
<td class="paramname"> <em>topLeft</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">QPoint </td>
<td class="paramname"> <em>bottomRight</em></td><td> </td>
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<td>)</td>
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<p>Definition at line <a class="el" href="crop_8cpp_source.html#l00036">36</a> of file <a class="el" href="crop_8cpp_source.html">crop.cpp</a>.</p>
<p>Referenced by <a class="el" href="editingInterface_8cpp_source.html#l00626">EditingInterface::crop()</a>.</p>
<p><div class="fragment"><pre class="fragment"><a name="l00037"></a>00037 {
<a name="l00038"></a>00038 <span class="comment">//load original image</span>
<a name="l00039"></a>00039 QImage origImage( filename );
<a name="l00040"></a>00040
<a name="l00041"></a>00041 <span class="comment">//convert to 32-bit depth if necessary</span>
<a name="l00042"></a>00042 <span class="keywordflow">if</span>( origImage.depth() < 32 ) { origImage = origImage.convertDepth( 32, Qt::AutoColor ); }
<a name="l00043"></a>00043
<a name="l00044"></a>00044 <span class="comment">//construct cropped image</span>
<a name="l00045"></a>00045 QImage* croppedImage = <span class="keyword">new</span> QImage(<a class="code" href="redEye__internal_8h.html#a75e80edb449bc9a0925be60719132bd0">bottomRight</a>.x() - <a class="code" href="redEye__internal_8h.html#a6a9aebec61b1a6732045c187a6156f4f">topLeft</a>.x() + 1,
<a name="l00046"></a>00046 <a class="code" href="redEye__internal_8h.html#a75e80edb449bc9a0925be60719132bd0">bottomRight</a>.y() - <a class="code" href="redEye__internal_8h.html#a6a9aebec61b1a6732045c187a6156f4f">topLeft</a>.y() + 1,
<a name="l00047"></a>00047 origImage.depth());
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="comment">//iterate over each selected scanline </span>
<a name="l00050"></a>00050 <span class="keywordtype">int</span> xOrig, yOrig;
<a name="l00051"></a>00051 <span class="keywordtype">int</span> xCropped, yCropped;
<a name="l00052"></a>00052 uchar *origScanLine, *croppedScanLine;
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="keywordflow">for</span>( yOrig=<a class="code" href="redEye__internal_8h.html#a6a9aebec61b1a6732045c187a6156f4f">topLeft</a>.y(),yCropped=0; yOrig<=<a class="code" href="redEye__internal_8h.html#a75e80edb449bc9a0925be60719132bd0">bottomRight</a>.y(); yOrig++, yCropped++)
<a name="l00055"></a>00055 {
<a name="l00056"></a>00056 <span class="comment">//iterate over each selected pixel in scanline</span>
<a name="l00057"></a>00057 origScanLine = origImage.scanLine(yOrig);
<a name="l00058"></a>00058 croppedScanLine = croppedImage->scanLine(yCropped);
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="keywordflow">for</span>( xOrig=<a class="code" href="redEye__internal_8h.html#a6a9aebec61b1a6732045c187a6156f4f">topLeft</a>.x(),xCropped=0; xOrig<=<a class="code" href="redEye__internal_8h.html#a75e80edb449bc9a0925be60719132bd0">bottomRight</a>.x(); xOrig++,xCropped++)
<a name="l00061"></a>00061 {
<a name="l00062"></a>00062 <span class="comment">//copy pixel color from original image to cropped image</span>
<a name="l00063"></a>00063 *((QRgb*)croppedScanLine+xCropped) = *((QRgb*)origScanLine+xOrig);
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="comment">//return pointer to cropped image</span>
<a name="l00068"></a>00068 <span class="keywordflow">return</span> croppedImage;
<a name="l00069"></a>00069 }
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