<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>AlbumShaper: blackWhite.h File Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.6.2 --> <div class="navigation" id="top"> <div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul> </div> </div> <div class="contents"> <h1>blackWhite.h File Reference</h1><div class="dynheader"> This graph shows which files directly or indirectly include this file:</div> <div class="dynsection"> </div> <p><a href="blackWhite_8h_source.html">Go to the source code of this file.</a></p> <table border="0" cellpadding="0" cellspacing="0"> <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="blackWhite_8h.html#a81188751080c22115720554f1ce6a30f">blackWhiteEffect</a> (QString filename, <a class="el" href="classManipulationOptions.html">ManipulationOptions</a> *options)</td></tr> </table> <hr/><h2>Function Documentation</h2> <a class="anchor" id="a81188751080c22115720554f1ce6a30f"></a><!-- doxytag: member="blackWhite.h::blackWhiteEffect" ref="a81188751080c22115720554f1ce6a30f" args="(QString filename, ManipulationOptions *options)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">QImage* blackWhiteEffect </td> <td>(</td> <td class="paramtype">QString </td> <td class="paramname"> <em>filename</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="classManipulationOptions.html">ManipulationOptions</a> * </td> <td class="paramname"> <em>options</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>Definition at line <a class="el" href="blackWhite_8cpp_source.html#l00060">60</a> of file <a class="el" href="blackWhite_8cpp_source.html">blackWhite.cpp</a>.</p> <p>References <a class="el" href="redEye__internal_8h_source.html#l00037">editedImage</a>, <a class="el" href="manipulationOptions_8h_source.html#l00021">ManipulationOptions::getStatus()</a>, <a class="el" href="statusWidget_8cpp_source.html#l00119">StatusWidget::incrementProgress()</a>, <a class="el" href="redEye__internal_8h_source.html#l00031">newProgress</a>, <a class="el" href="statusWidget_8cpp_source.html#l00089">StatusWidget::showProgressBar()</a>, <a class="el" href="redEye__internal_8h_source.html#l00021">status</a>, and <a class="el" href="redEye__internal_8h_source.html#l00028">updateIncrement</a>.</p> <p>Referenced by <a class="el" href="editingInterface_8cpp_source.html#l00834">EditingInterface::applyEffect()</a>, and <a class="el" href="pointillism_8cpp_source.html#l00109">pointillismEffect()</a>.</p> <p><div class="fragment"><pre class="fragment"><a name="l00061"></a>00061 { <a name="l00062"></a>00062 <span class="comment">//load image</span> <a name="l00063"></a>00063 QImage* <a class="code" href="redEye__internal_8h.html#a63116a8b94b4ed0e99ddcb7f6f3bd919">editedImage</a> = <span class="keyword">new</span> QImage( filename ); <a name="l00064"></a>00064 <a name="l00065"></a>00065 <span class="comment">//convert to 32-bit depth if necessary</span> <a name="l00066"></a>00066 <span class="keywordflow">if</span>( editedImage->depth() < 32 ) <a name="l00067"></a>00067 { <a name="l00068"></a>00068 QImage* tmp = editedImage; <a name="l00069"></a>00069 editedImage = <span class="keyword">new</span> QImage( tmp->convertDepth( 32, Qt::AutoColor ) ); <a name="l00070"></a>00070 <span class="keyword">delete</span> tmp; tmp=NULL; <a name="l00071"></a>00071 } <a name="l00072"></a>00072 <a name="l00073"></a>00073 <span class="comment">//determine if busy indicators will be used</span> <a name="l00074"></a>00074 <span class="keywordtype">bool</span> useBusyIndicators = <span class="keyword">false</span>; <a name="l00075"></a>00075 <a class="code" href="classStatusWidget.html">StatusWidget</a>* <a class="code" href="redEye__internal_8h.html#a65b682074aef9e63bb1dad48c3e9e9df">status</a> = NULL; <a name="l00076"></a>00076 <span class="keywordflow">if</span>( options != NULL && options-><a class="code" href="classManipulationOptions.html#a9bc4d4123333012b705b599043406e68">getStatus</a>() != NULL ) <a name="l00077"></a>00077 { <a name="l00078"></a>00078 useBusyIndicators = <span class="keyword">true</span>; <a name="l00079"></a>00079 status = options-><a class="code" href="classManipulationOptions.html#a9bc4d4123333012b705b599043406e68">getStatus</a>(); <a name="l00080"></a>00080 } <a name="l00081"></a>00081 <a name="l00082"></a>00082 <span class="comment">//setup progress bar</span> <a name="l00083"></a>00083 <span class="keywordflow">if</span>(useBusyIndicators) <a name="l00084"></a>00084 { <a name="l00085"></a>00085 QString statusMessage = qApp->translate( <span class="stringliteral">"blackWhiteEffect"</span>, <span class="stringliteral">"Applying Black + White Effect:"</span> ); <a name="l00086"></a>00086 status-><a class="code" href="classStatusWidget.html#a57d461014070b9d651c36bd157cab9c1" title="Initializes the progress bar.">showProgressBar</a>( statusMessage, 100 ); <a name="l00087"></a>00087 qApp->processEvents(); <a name="l00088"></a>00088 } <a name="l00089"></a>00089 <a name="l00090"></a>00090 <span class="comment">//update progress bar for every 1% of completion</span> <a name="l00091"></a>00091 <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="redEye__internal_8h.html#a32598f506d413f48cda8e1c930dae6b3">updateIncrement</a> = (int) ( 0.01 * editedImage->width() * editedImage->height() ); <a name="l00092"></a>00092 <span class="keywordtype">int</span> <a class="code" href="redEye__internal_8h.html#acaa08422437cae250a76ca488cbe1567">newProgress</a> = 0; <a name="l00093"></a>00093 <a name="l00094"></a>00094 <span class="comment">//iterate over each selected scanline </span> <a name="l00095"></a>00095 <span class="keywordtype">int</span> x, y, grayValue; <a name="l00096"></a>00096 QRgb* rgb; <a name="l00097"></a>00097 uchar* scanLine; <a name="l00098"></a>00098 <span class="keywordflow">for</span>( y=0; y<editedImage->height(); y++) <a name="l00099"></a>00099 { <a name="l00100"></a>00100 <span class="comment">//iterate over each selected pixel in scanline</span> <a name="l00101"></a>00101 scanLine = editedImage->scanLine(y); <a name="l00102"></a>00102 <span class="keywordflow">for</span>( x=0; x<editedImage->width(); x++) <a name="l00103"></a>00103 { <a name="l00104"></a>00104 <span class="comment">//compute gray value based on the display luminance of color coordinates</span> <a name="l00105"></a>00105 rgb = ((QRgb*)scanLine+x); <a name="l00106"></a>00106 grayValue = (int) (0.2125*qRed(*rgb) + 0.7154*qGreen(*rgb) + 0.0721*qBlue(*rgb)); <a name="l00107"></a>00107 <a name="l00108"></a>00108 <span class="comment">//clamp to ensure it falls in the 0-255 range</span> <a name="l00109"></a>00109 grayValue = QMIN( QMAX( grayValue, 0 ), 255 ); <a name="l00110"></a>00110 <a name="l00111"></a>00111 <span class="comment">//set pixel channel values using computed gray value</span> <a name="l00112"></a>00112 *rgb = qRgb( grayValue, grayValue, grayValue ); <a name="l00113"></a>00113 <a name="l00114"></a>00114 <span class="comment">//update status bar if significant progress has been made since last update</span> <a name="l00115"></a>00115 <span class="keywordflow">if</span>(useBusyIndicators) <a name="l00116"></a>00116 { <a name="l00117"></a>00117 newProgress++; <a name="l00118"></a>00118 <span class="keywordflow">if</span>(newProgress >= updateIncrement) <a name="l00119"></a>00119 { <a name="l00120"></a>00120 newProgress = 0; <a name="l00121"></a>00121 status-><a class="code" href="classStatusWidget.html#ade18735223ae40506c32c96b9c9c5476" title="Updates the progress bar by one step.">incrementProgress</a>(); <a name="l00122"></a>00122 qApp->processEvents(); <a name="l00123"></a>00123 } <a name="l00124"></a>00124 } <a name="l00125"></a>00125 <a name="l00126"></a>00126 } <a name="l00127"></a>00127 } <a name="l00128"></a>00128 <a name="l00129"></a>00129 <span class="comment">//return pointer to edited image</span> <a name="l00130"></a>00130 <span class="keywordflow">return</span> editedImage; <a name="l00131"></a>00131 } </pre></div></p> </div> </div> </div> <hr size="1"/><address style="text-align: right;"><small>Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address> </body> </html>