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albumshaper-2.1-6mdv2010.0.i586.rpm

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<h1>histogramEditor.cpp</h1><a href="histogramEditor_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">//==============================================</span>
<a name="l00002"></a>00002 <span class="comment">//  copyright            : (C) 2003-2005 by Will Stokes</span>
<a name="l00003"></a>00003 <span class="comment">//==============================================</span>
<a name="l00004"></a>00004 <span class="comment">//  This program is free software; you can redistribute it</span>
<a name="l00005"></a>00005 <span class="comment">//  and/or modify it under the terms of the GNU General</span>
<a name="l00006"></a>00006 <span class="comment">//  Public License as published by the Free Software</span>
<a name="l00007"></a>00007 <span class="comment">//  Foundation; either version 2 of the License, or</span>
<a name="l00008"></a>00008 <span class="comment">//  (at your option) any later version.</span>
<a name="l00009"></a>00009 <span class="comment">//==============================================</span>
<a name="l00010"></a>00010 
<a name="l00011"></a>00011 <span class="comment">//Systemwide includes</span>
<a name="l00012"></a>00012 <span class="preprocessor">#include &lt;qlayout.h&gt;</span>
<a name="l00013"></a>00013 <span class="preprocessor">#include &lt;qlabel.h&gt;</span>
<a name="l00014"></a>00014 <span class="preprocessor">#include &lt;qcombobox.h&gt;</span>
<a name="l00015"></a>00015 <span class="preprocessor">#include &lt;qpushbutton.h&gt;</span>
<a name="l00016"></a>00016 <span class="preprocessor">#include &lt;qframe.h&gt;</span>
<a name="l00017"></a>00017 <span class="preprocessor">#include &lt;qslider.h&gt;</span>
<a name="l00018"></a>00018 <span class="preprocessor">#include &lt;qtooltip.h&gt;</span>
<a name="l00019"></a>00019 <span class="preprocessor">#include &lt;qsizegrip.h&gt;</span>
<a name="l00020"></a>00020 
<a name="l00021"></a>00021 <span class="comment">//Projectwide includes</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include "<a class="code" href="histogramEditor_8h.html">histogramEditor.h</a>"</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="scaledPreviewInterface_8h.html">scaledPreviewInterface.h</a>"</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include "<a class="code" href="histogramInterface_8h.html">histogramInterface.h</a>"</span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "../clickableLabel.h"</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include "../dynamicSlider.h"</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "../../config.h"</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include "../../backend/tools/imageTools.h"</span>
<a name="l00029"></a>00029 
<a name="l00030"></a><a class="code" href="histogramEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">00030</a> <span class="preprocessor">#define SLIDER_RADIUS 40</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span>
<a name="l00032"></a>00032 <span class="comment">//==============================================</span>
<a name="l00033"></a><a class="code" href="classHistogramEditor.html#0af1416cad26f3aaefb779eeca50433e">00033</a> <a class="code" href="classHistogramEditor.html#0af1416cad26f3aaefb779eeca50433e" title="Constructs layout.">HistogramEditor::HistogramEditor</a>( QString fileName, <a class="code" href="classQWidget.html">QWidget</a> *parent, <span class="keyword">const</span> <span class="keywordtype">char</span>* name ) : <a class="code" href="classQDialog.html">QDialog</a>(parent,name,true)
<a name="l00034"></a>00034 {
<a name="l00035"></a>00035   <span class="comment">//set pointer to null to make sure no </span>
<a name="l00036"></a>00036   <span class="comment">//random data is ever accessed by the preview interface</span>
<a name="l00037"></a>00037   <a class="code" href="classHistogramEditor.html#6caaa3aada0953fec4c1329d94737cef" title="Histogram view.">histogramInterface</a> = NULL;
<a name="l00038"></a>00038 
<a name="l00039"></a>00039   <span class="comment">//record filename</span>
<a name="l00040"></a>00040   this-&gt;fileName = fileName;
<a name="l00041"></a>00041   
<a name="l00042"></a>00042   <span class="comment">//-----</span>
<a name="l00043"></a>00043   <span class="comment">//find mean color values</span>
<a name="l00044"></a>00044   <a class="code" href="classHistogramEditor.html#7465081e30a87e34552434d4863a15ab" title="Mean color values.">meanR</a> = 0;
<a name="l00045"></a>00045   <a class="code" href="classHistogramEditor.html#32535a647e5ff5e67b229df42b475a78">meanG</a> = 0;
<a name="l00046"></a>00046   <a class="code" href="classHistogramEditor.html#38831069b820cd8156f0df1510fba666">meanB</a> = 0;
<a name="l00047"></a>00047   <span class="keywordtype">int</span> x, y;
<a name="l00048"></a>00048   QRgb* rgb;
<a name="l00049"></a>00049   uchar* scanLine;
<a name="l00050"></a>00050   QImage image = QImage( fileName );
<a name="l00051"></a>00051   <span class="keywordflow">for</span>( y=0; y&lt;image.height(); y++)
<a name="l00052"></a>00052   {   
<a name="l00053"></a>00053     scanLine = image.scanLine(y);
<a name="l00054"></a>00054     <span class="keywordflow">for</span>( x=0; x&lt;image.width(); x++)
<a name="l00055"></a>00055     {
<a name="l00056"></a>00056       rgb = ((QRgb*)scanLine+x);
<a name="l00057"></a>00057       <span class="keywordtype">double</span> r = ((double)qRed(*rgb)   )/255.0;
<a name="l00058"></a>00058       <span class="keywordtype">double</span> g = ((double)qGreen(*rgb) )/255.0;
<a name="l00059"></a>00059       <span class="keywordtype">double</span> <a class="code" href="jpegInternal_8h.html#f320905358fa78701e4cc60b6135601f">b</a> = ((double)qBlue(*rgb)  )/255.0;
<a name="l00060"></a>00060       
<a name="l00061"></a>00061       <a class="code" href="classHistogramEditor.html#7465081e30a87e34552434d4863a15ab" title="Mean color values.">meanR</a>+=r;
<a name="l00062"></a>00062       <a class="code" href="classHistogramEditor.html#32535a647e5ff5e67b229df42b475a78">meanG</a>+=g;
<a name="l00063"></a>00063       <a class="code" href="classHistogramEditor.html#38831069b820cd8156f0df1510fba666">meanB</a>+=b;
<a name="l00064"></a>00064     } <span class="comment">//x</span>
<a name="l00065"></a>00065   } <span class="comment">//y</span>
<a name="l00066"></a>00066   <a class="code" href="classHistogramEditor.html#7465081e30a87e34552434d4863a15ab" title="Mean color values.">meanR</a> = <a class="code" href="classHistogramEditor.html#7465081e30a87e34552434d4863a15ab" title="Mean color values.">meanR</a> / ( image.width() * image.height() );
<a name="l00067"></a>00067   <a class="code" href="classHistogramEditor.html#32535a647e5ff5e67b229df42b475a78">meanG</a> = <a class="code" href="classHistogramEditor.html#32535a647e5ff5e67b229df42b475a78">meanG</a> / ( image.width() * image.height() );
<a name="l00068"></a>00068   <a class="code" href="classHistogramEditor.html#38831069b820cd8156f0df1510fba666">meanB</a> = <a class="code" href="classHistogramEditor.html#38831069b820cd8156f0df1510fba666">meanB</a> / ( image.width() * image.height() );
<a name="l00069"></a>00069   
<a name="l00070"></a>00070   <a class="code" href="classQFrame.html">QFrame</a>* visibleFrame = <span class="keyword">new</span> <a class="code" href="classQFrame.html">QFrame</a>( <span class="keyword">this</span>, <span class="stringliteral">"visible widgets"</span> );
<a name="l00071"></a>00071   <span class="comment">//--------------  </span>
<a name="l00072"></a>00072   <span class="comment">//Preview frame: </span>
<a name="l00073"></a>00073   <a class="code" href="classHistogramEditor.html#c3cefbf518300bd46401606802584b57" title="Preview image.">previewInterface</a> = <span class="keyword">new</span> <a class="code" href="classScaledPreviewInterface.html">ScaledPreviewInterface</a>( fileName, visibleFrame, 
<a name="l00074"></a>00074                                                  <span class="stringliteral">"previewInterface"</span> );
<a name="l00075"></a>00075   connect( <a class="code" href="classHistogramEditor.html#c3cefbf518300bd46401606802584b57" title="Preview image.">previewInterface</a>, SIGNAL(resized()), 
<a name="l00076"></a>00076            <span class="keyword">this</span>, SLOT(<a class="code" href="classHistogramEditor.html#bafd2847c061763cd7c16bc500fe1bdd" title="updates adjusted preview image">generateAdjustedPreviewImage</a>()) );  
<a name="l00077"></a>00077 
<a name="l00078"></a>00078   <a class="code" href="classHistogramEditor.html#16747259c09a2c24d59b396ac63dc588">previewSelection</a> = <span class="keyword">new</span> QComboBox( visibleFrame, <span class="stringliteral">"previewSelction"</span> );
<a name="l00079"></a>00079   <a class="code" href="classHistogramEditor.html#16747259c09a2c24d59b396ac63dc588">previewSelection</a>-&gt;insertItem( tr(<span class="stringliteral">"Split View"</span>) );
<a name="l00080"></a>00080   <a class="code" href="classHistogramEditor.html#16747259c09a2c24d59b396ac63dc588">previewSelection</a>-&gt;insertItem( tr(<span class="stringliteral">"Original Image"</span>) );
<a name="l00081"></a>00081   <a class="code" href="classHistogramEditor.html#16747259c09a2c24d59b396ac63dc588">previewSelection</a>-&gt;insertItem( tr(<span class="stringliteral">"Adjusted Image"</span>) );
<a name="l00082"></a>00082   connect( <a class="code" href="classHistogramEditor.html#16747259c09a2c24d59b396ac63dc588">previewSelection</a>, SIGNAL(activated(<span class="keywordtype">int</span>)), <span class="keyword">this</span>, SLOT(<a class="code" href="classHistogramEditor.html#561456c67ccb364303bd70ac27e06b2a" title="updates preview image">selectPreviewImageType</a>(<span class="keywordtype">int</span>)) );  
<a name="l00083"></a>00083   <span class="comment">//--------------</span>
<a name="l00084"></a>00084   <span class="comment">//Adjust frame:   </span>
<a name="l00085"></a>00085   <a class="code" href="classHistogramEditor.html#6caaa3aada0953fec4c1329d94737cef" title="Histogram view.">histogramInterface</a> = <span class="keyword">new</span> <a class="code" href="classHistogramInterface.html">HistogramInterface</a>( fileName, visibleFrame, 
<a name="l00086"></a>00086                                                <span class="stringliteral">"histogramInterface"</span> );  
<a name="l00087"></a>00087 
<a name="l00088"></a>00088   <span class="comment">//connect adjustments in histogram to generateAdjustedPreviewImage</span>
<a name="l00089"></a>00089   connect( <a class="code" href="classHistogramEditor.html#6caaa3aada0953fec4c1329d94737cef" title="Histogram view.">histogramInterface</a>, SIGNAL( selectedRangeChanged() ),
<a name="l00090"></a>00090            SLOT( <a class="code" href="classHistogramEditor.html#bafd2847c061763cd7c16bc500fe1bdd" title="updates adjusted preview image">generateAdjustedPreviewImage</a>() ) );
<a name="l00091"></a>00091   
<a name="l00092"></a>00092   QToolTip::add( <a class="code" href="classHistogramEditor.html#6caaa3aada0953fec4c1329d94737cef" title="Histogram view.">histogramInterface</a>, tr(<span class="stringliteral">"Click and drag to select tonal range"</span>) );  
<a name="l00093"></a>00093 
<a name="l00094"></a>00094   <a class="code" href="classHistogramEditor.html#b476a3eea3a146149ec7bba4a4878399">histogramType</a> = <span class="keyword">new</span> QComboBox( visibleFrame, <span class="stringliteral">"histogramType"</span> );
<a name="l00095"></a>00095   <a class="code" href="classHistogramEditor.html#b476a3eea3a146149ec7bba4a4878399">histogramType</a>-&gt;insertItem( tr(<span class="stringliteral">"Luminosity"</span>) );
<a name="l00096"></a>00096   <a class="code" href="classHistogramEditor.html#b476a3eea3a146149ec7bba4a4878399">histogramType</a>-&gt;insertItem( tr(<span class="stringliteral">"Red"</span>) );
<a name="l00097"></a>00097   <a class="code" href="classHistogramEditor.html#b476a3eea3a146149ec7bba4a4878399">histogramType</a>-&gt;insertItem( tr(<span class="stringliteral">"Green"</span>) );
<a name="l00098"></a>00098   <a class="code" href="classHistogramEditor.html#b476a3eea3a146149ec7bba4a4878399">histogramType</a>-&gt;insertItem( tr(<span class="stringliteral">"Blue"</span>) );  
<a name="l00099"></a>00099   connect( <a class="code" href="classHistogramEditor.html#b476a3eea3a146149ec7bba4a4878399">histogramType</a>, SIGNAL(activated(<span class="keywordtype">int</span>)), <span class="keyword">this</span>, SLOT(<a class="code" href="classHistogramEditor.html#23e6a70b3f7df16aa87df3e718e99527" title="updates historgram interface">selectHistogramType</a>(<span class="keywordtype">int</span>)) );  
<a name="l00100"></a>00100   QToolTip::add( <a class="code" href="classHistogramEditor.html#b476a3eea3a146149ec7bba4a4878399">histogramType</a>, tr(<span class="stringliteral">"Histogram channel displayed"</span>) );  
<a name="l00101"></a>00101   <span class="comment">//--------------</span>
<a name="l00102"></a>00102   <span class="comment">//Slider frame:</span>
<a name="l00103"></a>00103   QString noChange = QString( tr(<span class="stringliteral">"No change"</span>) );
<a name="l00104"></a>00104   
<a name="l00105"></a>00105   <a class="code" href="classHistogramEditor.html#9f4cfe8de5107624f038d82c5b35b637" title="Brightness slider.">brightness</a> = <span class="keyword">new</span> <a class="code" href="classDynamicSlider.html" title="A more dynamic slider that provides moving tooltips that show the slider value.">DynamicSlider</a>( Qt::Vertical, visibleFrame );
<a name="l00106"></a>00106   <a class="code" href="classHistogramEditor.html#9f4cfe8de5107624f038d82c5b35b637" title="Brightness slider.">brightness</a>-&gt;<a class="code" href="classDynamicSlider.html#750e540c9e41e4ffcc04634d3c126ebe" title="when set, a zero string is shown instead of the current value/prefix/suffix when...">setZeroString</a>( noChange );
<a name="l00107"></a>00107   <a class="code" href="classHistogramEditor.html#9f4cfe8de5107624f038d82c5b35b637" title="Brightness slider.">brightness</a>-&gt;<a class="code" href="classDynamicSlider.html#3468a9997b768c4464eede49b4c2b563" title="set two prefix values, one for when the value is positive and one for when the value...">setPrefixes</a>(<span class="stringliteral">""</span>, <span class="stringliteral">"+"</span>);
<a name="l00108"></a>00108   <a class="code" href="classHistogramEditor.html#9f4cfe8de5107624f038d82c5b35b637" title="Brightness slider.">brightness</a>-&gt;setMinValue( -<a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a> );
<a name="l00109"></a>00109   <a class="code" href="classHistogramEditor.html#9f4cfe8de5107624f038d82c5b35b637" title="Brightness slider.">brightness</a>-&gt;setMaxValue( <a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a> );
<a name="l00110"></a>00110   connect( <a class="code" href="classHistogramEditor.html#9f4cfe8de5107624f038d82c5b35b637" title="Brightness slider.">brightness</a>, SIGNAL(valueChanged(<span class="keywordtype">int</span>)),
<a name="l00111"></a>00111            <span class="keyword">this</span>, SLOT(<a class="code" href="classHistogramEditor.html#bafd2847c061763cd7c16bc500fe1bdd" title="updates adjusted preview image">generateAdjustedPreviewImage</a>()) );;
<a name="l00112"></a>00112   QToolTip::add( <a class="code" href="classHistogramEditor.html#9f4cfe8de5107624f038d82c5b35b637" title="Brightness slider.">brightness</a>, tr(<span class="stringliteral">"Drag to adjust image brightness"</span>) );  
<a name="l00113"></a>00113            
<a name="l00114"></a>00114   <a class="code" href="classHistogramEditor.html#2a0e73c776b754fa5471b68f7b5c9d80">brightnessIcon</a> = <span class="keyword">new</span> <a class="code" href="classClickableLabel.html" title="A clickable label.">ClickableLabel</a>( visibleFrame, <span class="stringliteral">"brightnessIcon"</span> );
<a name="l00115"></a>00115   <a class="code" href="classHistogramEditor.html#2a0e73c776b754fa5471b68f7b5c9d80">brightnessIcon</a>-&gt;<a class="code" href="classClickableLabel.html#f6ee3b690cac8ad35b1979b4fce21460">setPixmap</a>( QPixmap(QString(<a class="code" href="config_8cpp.html#59e02362a9a29a755712dc830a3eb513">IMAGE_PATH</a>)+<span class="stringliteral">"miscImages/brightness.png"</span>) );
<a name="l00116"></a>00116   connect( <a class="code" href="classHistogramEditor.html#2a0e73c776b754fa5471b68f7b5c9d80">brightnessIcon</a>, SIGNAL(clicked()), SLOT(<a class="code" href="classHistogramEditor.html#f29047ba2eb64cbc3df15f585c1acb16" title="reset brightness">resetBrightness</a>()) );    
<a name="l00117"></a>00117   QToolTip::add( <a class="code" href="classHistogramEditor.html#2a0e73c776b754fa5471b68f7b5c9d80">brightnessIcon</a>, tr(<span class="stringliteral">"Reset brightness"</span>) );
<a name="l00118"></a>00118 
<a name="l00119"></a>00119   <a class="code" href="classHistogramEditor.html#2628052b95734019ed8bd3d5cf084b22" title="Contrast slider.">contrast</a> = <span class="keyword">new</span> <a class="code" href="classDynamicSlider.html" title="A more dynamic slider that provides moving tooltips that show the slider value.">DynamicSlider</a>( Qt::Vertical, visibleFrame );
<a name="l00120"></a>00120   <a class="code" href="classHistogramEditor.html#2628052b95734019ed8bd3d5cf084b22" title="Contrast slider.">contrast</a>-&gt;<a class="code" href="classDynamicSlider.html#750e540c9e41e4ffcc04634d3c126ebe" title="when set, a zero string is shown instead of the current value/prefix/suffix when...">setZeroString</a>( noChange );
<a name="l00121"></a>00121   <a class="code" href="classHistogramEditor.html#2628052b95734019ed8bd3d5cf084b22" title="Contrast slider.">contrast</a>-&gt;<a class="code" href="classDynamicSlider.html#3468a9997b768c4464eede49b4c2b563" title="set two prefix values, one for when the value is positive and one for when the value...">setPrefixes</a>(<span class="stringliteral">""</span>, <span class="stringliteral">"+"</span>);
<a name="l00122"></a>00122   <a class="code" href="classHistogramEditor.html#2628052b95734019ed8bd3d5cf084b22" title="Contrast slider.">contrast</a>-&gt;setMinValue( -<a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a> );
<a name="l00123"></a>00123   <a class="code" href="classHistogramEditor.html#2628052b95734019ed8bd3d5cf084b22" title="Contrast slider.">contrast</a>-&gt;setMaxValue( <a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a> );
<a name="l00124"></a>00124   connect( <a class="code" href="classHistogramEditor.html#2628052b95734019ed8bd3d5cf084b22" title="Contrast slider.">contrast</a>, SIGNAL(valueChanged(<span class="keywordtype">int</span>)),
<a name="l00125"></a>00125            <span class="keyword">this</span>, SLOT(<a class="code" href="classHistogramEditor.html#bafd2847c061763cd7c16bc500fe1bdd" title="updates adjusted preview image">generateAdjustedPreviewImage</a>()) );
<a name="l00126"></a>00126   QToolTip::add( <a class="code" href="classHistogramEditor.html#2628052b95734019ed8bd3d5cf084b22" title="Contrast slider.">contrast</a>, tr(<span class="stringliteral">"Drag to adjust image contrast"</span>) );  
<a name="l00127"></a>00127 
<a name="l00128"></a>00128   <a class="code" href="classHistogramEditor.html#a74cba2fe4d4d1698529c032b4af4233">contrastIcon</a> = <span class="keyword">new</span> <a class="code" href="classClickableLabel.html" title="A clickable label.">ClickableLabel</a>( visibleFrame, <span class="stringliteral">"contrastIcon"</span> );
<a name="l00129"></a>00129   <a class="code" href="classHistogramEditor.html#a74cba2fe4d4d1698529c032b4af4233">contrastIcon</a>-&gt;<a class="code" href="classClickableLabel.html#f6ee3b690cac8ad35b1979b4fce21460">setPixmap</a>( QPixmap(QString(<a class="code" href="config_8cpp.html#59e02362a9a29a755712dc830a3eb513">IMAGE_PATH</a>)+<span class="stringliteral">"miscImages/contrast.png"</span>) );
<a name="l00130"></a>00130   connect( <a class="code" href="classHistogramEditor.html#a74cba2fe4d4d1698529c032b4af4233">contrastIcon</a>, SIGNAL(clicked()), SLOT(<a class="code" href="classHistogramEditor.html#04de16886597eb3907140c7c7db7ddeb" title="reset contrast">resetContrast</a>()) );    
<a name="l00131"></a>00131   QToolTip::add( <a class="code" href="classHistogramEditor.html#a74cba2fe4d4d1698529c032b4af4233">contrastIcon</a>, tr(<span class="stringliteral">"Reset contrast"</span>) );
<a name="l00132"></a>00132   <span class="comment">//--------------</span>
<a name="l00133"></a>00133   <span class="comment">//Dialog buttons:  </span>
<a name="l00134"></a>00134   <a class="code" href="classHistogramEditor.html#c10565d1a164dd060d0e0b04cf9fc378">buttonsFrame</a> =   <span class="keyword">new</span> <a class="code" href="classQFrame.html">QFrame</a>( visibleFrame, <span class="stringliteral">"dialogButtons"</span> );
<a name="l00135"></a>00135 
<a name="l00136"></a>00136   QPushButton* applyButton = <span class="keyword">new</span> QPushButton( tr(<span class="stringliteral">"Apply"</span>), <a class="code" href="classHistogramEditor.html#c10565d1a164dd060d0e0b04cf9fc378">buttonsFrame</a> );
<a name="l00137"></a>00137   applyButton-&gt;setDefault(<span class="keyword">true</span>);
<a name="l00138"></a>00138   applyButton-&gt;setFocus();
<a name="l00139"></a>00139   connect( applyButton, SIGNAL(clicked()), SLOT(<a class="code" href="classHistogramEditor.html#14ff05c81910e9f41a43c45abb07606a" title="check for changes to settings, if so">applyAction</a>()) );
<a name="l00140"></a>00140                                 
<a name="l00141"></a>00141   QPushButton* cancelButton = <span class="keyword">new</span> QPushButton( tr(<span class="stringliteral">"Cancel"</span>), <a class="code" href="classHistogramEditor.html#c10565d1a164dd060d0e0b04cf9fc378">buttonsFrame</a> );
<a name="l00142"></a>00142   connect( cancelButton, SIGNAL(clicked()), SLOT(reject()) );
<a name="l00143"></a>00143 
<a name="l00144"></a>00144   QPushButton* resetButton = <span class="keyword">new</span> QPushButton( tr(<span class="stringliteral">"Reset"</span>), <a class="code" href="classHistogramEditor.html#c10565d1a164dd060d0e0b04cf9fc378">buttonsFrame</a> );
<a name="l00145"></a>00145   connect( resetButton, SIGNAL(clicked()), SLOT(<a class="code" href="classHistogramEditor.html#1ae27f41de269b4b51104a31295c2d1e" title="resets all adjustments">resetAction</a>()) );
<a name="l00146"></a>00146 
<a name="l00147"></a>00147   QGridLayout* buttonsGrid = <span class="keyword">new</span> QGridLayout( <a class="code" href="classHistogramEditor.html#c10565d1a164dd060d0e0b04cf9fc378">buttonsFrame</a>, 1, 5, 0 );
<a name="l00148"></a>00148   buttonsGrid-&gt;setColStretch( 0, 1 );
<a name="l00149"></a>00149   buttonsGrid-&gt;addWidget( applyButton,  0, 1 );
<a name="l00150"></a>00150   buttonsGrid-&gt;addWidget( cancelButton, 0, 2 );
<a name="l00151"></a>00151   buttonsGrid-&gt;addWidget( resetButton, 0, 3 );
<a name="l00152"></a>00152   buttonsGrid-&gt;setColStretch( 4, 1 );  
<a name="l00153"></a>00153   buttonsGrid-&gt;setSpacing( <a class="code" href="config_8h.html#07d364596a27705c900f07340515d5db">WIDGET_SPACING</a> );
<a name="l00154"></a>00154   <span class="comment">//--------------</span>
<a name="l00155"></a>00155   QGridLayout* mainGrid = <span class="keyword">new</span> QGridLayout( visibleFrame, 5, 3, 0 );
<a name="l00156"></a>00156   
<a name="l00157"></a>00157   mainGrid-&gt;addMultiCellWidget( <a class="code" href="classHistogramEditor.html#c3cefbf518300bd46401606802584b57" title="Preview image.">previewInterface</a>,     0,0, 0,2 );
<a name="l00158"></a>00158   mainGrid-&gt;addMultiCellWidget( <a class="code" href="classHistogramEditor.html#16747259c09a2c24d59b396ac63dc588">previewSelection</a>, 1,1, 0,2, Qt::AlignHCenter );  
<a name="l00159"></a>00159    
<a name="l00160"></a>00160   mainGrid-&gt;addWidget( <a class="code" href="classHistogramEditor.html#6caaa3aada0953fec4c1329d94737cef" title="Histogram view.">histogramInterface</a>,    2, 0 ); 
<a name="l00161"></a>00161   mainGrid-&gt;addWidget( <a class="code" href="classHistogramEditor.html#9f4cfe8de5107624f038d82c5b35b637" title="Brightness slider.">brightness</a>,            2, 1 );
<a name="l00162"></a>00162   mainGrid-&gt;addWidget( <a class="code" href="classHistogramEditor.html#2628052b95734019ed8bd3d5cf084b22" title="Contrast slider.">contrast</a>,              2, 2 );
<a name="l00163"></a>00163   
<a name="l00164"></a>00164   <span class="comment">//make sure sliders have enough space so all slider units are settable</span>
<a name="l00165"></a>00165   mainGrid-&gt;setRowSpacing( 2, 2*<a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a> + 5) ;
<a name="l00166"></a>00166     
<a name="l00167"></a>00167   mainGrid-&gt;addWidget( <a class="code" href="classHistogramEditor.html#b476a3eea3a146149ec7bba4a4878399">histogramType</a>,    3, 0, Qt::AlignHCenter );
<a name="l00168"></a>00168   mainGrid-&gt;addWidget( <a class="code" href="classHistogramEditor.html#2a0e73c776b754fa5471b68f7b5c9d80">brightnessIcon</a>,   3, 1 );  
<a name="l00169"></a>00169   mainGrid-&gt;addWidget( <a class="code" href="classHistogramEditor.html#a74cba2fe4d4d1698529c032b4af4233">contrastIcon</a>,     3, 2 );  
<a name="l00170"></a>00170   
<a name="l00171"></a>00171   mainGrid-&gt;addMultiCellWidget( <a class="code" href="classHistogramEditor.html#c10565d1a164dd060d0e0b04cf9fc378">buttonsFrame</a>, 4,4, 0,2 );
<a name="l00172"></a>00172 
<a name="l00173"></a>00173   mainGrid-&gt;setRowStretch( 0, 1 );
<a name="l00174"></a>00174   mainGrid-&gt;setColStretch( 0, 1 );
<a name="l00175"></a>00175   
<a name="l00176"></a>00176   mainGrid-&gt;setSpacing( <a class="code" href="config_8h.html#07d364596a27705c900f07340515d5db">WIDGET_SPACING</a> );
<a name="l00177"></a>00177   mainGrid-&gt;setMargin( <a class="code" href="config_8h.html#07d364596a27705c900f07340515d5db">WIDGET_SPACING</a> );
<a name="l00178"></a>00178   
<a name="l00179"></a>00179   QGridLayout* invisibleGrid = <span class="keyword">new</span> QGridLayout( <span class="keyword">this</span>, 2, 1, 0 );
<a name="l00180"></a>00180   invisibleGrid-&gt;addWidget( visibleFrame, 0, 0 );
<a name="l00181"></a>00181   invisibleGrid-&gt;setRowStretch( 0, 1 );
<a name="l00182"></a>00182   
<a name="l00183"></a>00183   <span class="comment">//PLATFORM_SPECIFIC_CODE</span>
<a name="l00184"></a>00184   <span class="comment">//windows users expect a grip, but qt doesn't put one in by default. we'll add</span>
<a name="l00185"></a>00185   <span class="comment">//it for them too. :-)</span>
<a name="l00186"></a>00186 <span class="preprocessor">#if defined(Q_OS_WIN)</span>
<a name="l00187"></a>00187 <span class="preprocessor"></span>  QSizeGrip* sizeGrip = <span class="keyword">new</span> QSizeGrip( <span class="keyword">this</span> );
<a name="l00188"></a>00188   invisibleGrid-&gt;addWidget( sizeGrip, 1, 0, Qt::AlignRight | Qt::AlignBottom );
<a name="l00189"></a>00189 <span class="preprocessor">#endif</span>
<a name="l00190"></a>00190 <span class="preprocessor"></span>  
<a name="l00191"></a>00191   
<a name="l00192"></a>00192   
<a name="l00193"></a>00193   
<a name="l00194"></a>00194   <span class="comment">//Window caption</span>
<a name="l00195"></a>00195   setCaption( tr(<span class="stringliteral">"Histogram Editor"</span>) );
<a name="l00196"></a>00196   <span class="comment">//-------------------------------</span>
<a name="l00197"></a>00197 }
<a name="l00198"></a>00198 <span class="comment">//==============================================</span>
<a name="l00199"></a><a class="code" href="classHistogramEditor.html#2135b9e57008236be5d278674f9c8bbe">00199</a> <a class="code" href="classHistogramEditor.html#2135b9e57008236be5d278674f9c8bbe">HistogramEditor::~HistogramEditor</a>() { }
<a name="l00200"></a>00200 <span class="comment">//==============================================</span>
<a name="l00201"></a><a class="code" href="classHistogramEditor.html#14ff05c81910e9f41a43c45abb07606a">00201</a> <span class="keywordtype">void</span> <a class="code" href="classHistogramEditor.html#14ff05c81910e9f41a43c45abb07606a" title="check for changes to settings, if so">HistogramEditor::applyAction</a>()
<a name="l00202"></a>00202 {
<a name="l00203"></a>00203   <span class="comment">//check if user has adjusted brightness, contrast, or histogram ranges.</span>
<a name="l00204"></a>00204   <span class="comment">//if any changes have taken place call "accept", else "reject" so image is not</span>
<a name="l00205"></a>00205   <span class="comment">//updated and appear modified</span>
<a name="l00206"></a>00206   <span class="keywordtype">int</span> lumLeft, lumRight, redLeft, redRight, greenLeft, greenRight, blueLeft, blueRight;
<a name="l00207"></a>00207   <a class="code" href="classHistogramEditor.html#6caaa3aada0953fec4c1329d94737cef" title="Histogram view.">histogramInterface</a>-&gt;<a class="code" href="classHistogramInterface.html#ce352a748cf063b12cd22d54f1460680" title="returns histogram boundaries">getHistBoundaries</a>( lumLeft, lumRight,
<a name="l00208"></a>00208                                          redLeft, redRight,
<a name="l00209"></a>00209                                          greenLeft, greenRight,
<a name="l00210"></a>00210                                          blueLeft, blueRight );  
<a name="l00211"></a>00211   <span class="keywordflow">if</span>( <a class="code" href="classHistogramEditor.html#9f4cfe8de5107624f038d82c5b35b637" title="Brightness slider.">brightness</a>-&gt;value() != 0 || <a class="code" href="classHistogramEditor.html#2628052b95734019ed8bd3d5cf084b22" title="Contrast slider.">contrast</a>-&gt;value()   != 0 ||
<a name="l00212"></a>00212       lumLeft != 0 || lumRight != 255 ||
<a name="l00213"></a>00213       redLeft !=0 || redRight != 255 ||
<a name="l00214"></a>00214       greenLeft != 0 || greenRight != 255 ||
<a name="l00215"></a>00215       blueLeft != 0 || blueRight != 255 )
<a name="l00216"></a>00216   { accept(); }
<a name="l00217"></a>00217   <span class="keywordflow">else</span>
<a name="l00218"></a>00218   { reject(); }  
<a name="l00219"></a>00219 }
<a name="l00220"></a>00220 <span class="comment">//==============================================</span>
<a name="l00221"></a><a class="code" href="classHistogramEditor.html#1ae27f41de269b4b51104a31295c2d1e">00221</a> <span class="keywordtype">void</span> <a class="code" href="classHistogramEditor.html#1ae27f41de269b4b51104a31295c2d1e" title="resets all adjustments">HistogramEditor::resetAction</a>()
<a name="l00222"></a>00222 {
<a name="l00223"></a>00223   <a class="code" href="classHistogramEditor.html#6caaa3aada0953fec4c1329d94737cef" title="Histogram view.">histogramInterface</a>-&gt;<a class="code" href="classHistogramInterface.html#a50e91749fffe828524ae0248f66b4d5" title="resets all boundaries">resetBoundaries</a>();
<a name="l00224"></a>00224   <a class="code" href="classHistogramEditor.html#f29047ba2eb64cbc3df15f585c1acb16" title="reset brightness">resetBrightness</a>();
<a name="l00225"></a>00225   <a class="code" href="classHistogramEditor.html#04de16886597eb3907140c7c7db7ddeb" title="reset contrast">resetContrast</a>();
<a name="l00226"></a>00226 }
<a name="l00227"></a>00227 <span class="comment">//==============================================</span>
<a name="l00228"></a><a class="code" href="classHistogramEditor.html#620d6a6f5d7165dffced1f695dead40f">00228</a> QImage* <a class="code" href="classHistogramEditor.html#620d6a6f5d7165dffced1f695dead40f" title="get modified image that resulted from adjustments">HistogramEditor::getModifiedImage</a>()
<a name="l00229"></a>00229 { 
<a name="l00230"></a>00230   QImage* adjustedImage = <span class="keyword">new</span> QImage(<a class="code" href="classHistogramEditor.html#9ceb548284f1b20acfa1bff16865f5a8">fileName</a>);
<a name="l00231"></a>00231   
<a name="l00232"></a>00232   <span class="comment">//convert to 32-bit depth if necessary</span>
<a name="l00233"></a>00233   <span class="keywordflow">if</span>( adjustedImage-&gt;depth() &lt; 32 )
<a name="l00234"></a>00234   {
<a name="l00235"></a>00235     QImage* tmp = adjustedImage;
<a name="l00236"></a>00236     adjustedImage = <span class="keyword">new</span> QImage( tmp-&gt;convertDepth( 32, Qt::AutoColor ) );
<a name="l00237"></a>00237     <span class="keyword">delete</span> tmp; tmp=NULL;
<a name="l00238"></a>00238   }
<a name="l00239"></a>00239   
<a name="l00240"></a>00240   <a class="code" href="classHistogramEditor.html#84e9f69ff2889a4baaf2d8e620a36554">adjustImage</a>( *adjustedImage );
<a name="l00241"></a>00241   <span class="keywordflow">return</span> adjustedImage;  
<a name="l00242"></a>00242 }
<a name="l00243"></a>00243 <span class="comment">//==============================================</span>
<a name="l00244"></a><a class="code" href="classHistogramEditor.html#561456c67ccb364303bd70ac27e06b2a">00244</a> <span class="keywordtype">void</span> <a class="code" href="classHistogramEditor.html#561456c67ccb364303bd70ac27e06b2a" title="updates preview image">HistogramEditor::selectPreviewImageType</a>( <span class="keywordtype">int</span> selection )
<a name="l00245"></a>00245 {
<a name="l00246"></a>00246   <a class="code" href="classHistogramEditor.html#c3cefbf518300bd46401606802584b57" title="Preview image.">previewInterface</a>-&gt;<a class="code" href="classSplitViewInterface.html#e6cd0c9f1fb64b0313063f59aa748943" title="Sets preview mode.">setPreviewMode</a>( (<a class="code" href="splitViewInterface_8h.html#a4478246983e5a13f84754204fb5ab80" title="current preview mode">PREVIEW_MODE</a>)selection );
<a name="l00247"></a>00247 }
<a name="l00248"></a>00248 <span class="comment">//==============================================</span>
<a name="l00249"></a><a class="code" href="classHistogramEditor.html#23e6a70b3f7df16aa87df3e718e99527">00249</a> <span class="keywordtype">void</span> <a class="code" href="classHistogramEditor.html#23e6a70b3f7df16aa87df3e718e99527" title="updates historgram interface">HistogramEditor::selectHistogramType</a>( <span class="keywordtype">int</span> selection )
<a name="l00250"></a>00250 {
<a name="l00251"></a>00251   <a class="code" href="classHistogramEditor.html#6caaa3aada0953fec4c1329d94737cef" title="Histogram view.">histogramInterface</a>-&gt;<a class="code" href="classHistogramInterface.html#84ee87d1cc494c965375266d24adfd85" title="Sets currently displayed channel.">setDisplayChannel</a>( (<a class="code" href="histogramInterface_8h.html#435afa8a7ae5dd59e451491c9e221c8c" title="chanel histogram displays">DISPLAYED_CHANNEL</a>) selection );
<a name="l00252"></a>00252 }
<a name="l00253"></a>00253 <span class="comment">//==============================================</span>
<a name="l00254"></a><a class="code" href="classHistogramEditor.html#f29047ba2eb64cbc3df15f585c1acb16">00254</a> <span class="keywordtype">void</span> <a class="code" href="classHistogramEditor.html#f29047ba2eb64cbc3df15f585c1acb16" title="reset brightness">HistogramEditor::resetBrightness</a>()
<a name="l00255"></a>00255 { <a class="code" href="classHistogramEditor.html#9f4cfe8de5107624f038d82c5b35b637" title="Brightness slider.">brightness</a>-&gt;setValue( 0 ); }
<a name="l00256"></a>00256 <span class="comment">//==============================================</span>
<a name="l00257"></a><a class="code" href="classHistogramEditor.html#04de16886597eb3907140c7c7db7ddeb">00257</a> <span class="keywordtype">void</span> <a class="code" href="classHistogramEditor.html#04de16886597eb3907140c7c7db7ddeb" title="reset contrast">HistogramEditor::resetContrast</a>()
<a name="l00258"></a>00258 { <a class="code" href="classHistogramEditor.html#2628052b95734019ed8bd3d5cf084b22" title="Contrast slider.">contrast</a>-&gt;setValue( 0 ); }
<a name="l00259"></a>00259 <span class="comment">//==============================================</span>
<a name="l00260"></a><a class="code" href="classHistogramEditor.html#7e426c0dc30a2823b42fa8546063af46">00260</a> <span class="keywordtype">void</span> <a class="code" href="classHistogramEditor.html#7e426c0dc30a2823b42fa8546063af46" title="returns histogram boundaries">HistogramEditor::getHistBoundaries</a>(<span class="keywordtype">int</span> &amp;lumLeft, <span class="keywordtype">int</span> &amp;lumRight,
<a name="l00261"></a>00261                                         <span class="keywordtype">int</span> &amp;redLeft, <span class="keywordtype">int</span> &amp;redRight,
<a name="l00262"></a>00262                                         <span class="keywordtype">int</span> &amp;greenLeft, <span class="keywordtype">int</span> &amp;greenRight,
<a name="l00263"></a>00263                                         <span class="keywordtype">int</span> &amp;blueLeft, <span class="keywordtype">int</span> &amp;blueRight)
<a name="l00264"></a>00264 {
<a name="l00265"></a>00265   <span class="comment">//sanity check</span>
<a name="l00266"></a>00266   <span class="keywordflow">if</span>( <a class="code" href="classHistogramEditor.html#6caaa3aada0953fec4c1329d94737cef" title="Histogram view.">histogramInterface</a> )
<a name="l00267"></a>00267   {
<a name="l00268"></a>00268     <a class="code" href="classHistogramEditor.html#6caaa3aada0953fec4c1329d94737cef" title="Histogram view.">histogramInterface</a>-&gt;<a class="code" href="classHistogramInterface.html#ce352a748cf063b12cd22d54f1460680" title="returns histogram boundaries">getHistBoundaries</a>( lumLeft, lumRight,
<a name="l00269"></a>00269                                            redLeft, redRight,
<a name="l00270"></a>00270                                            greenLeft, greenRight,
<a name="l00271"></a>00271                                            blueLeft, blueRight );
<a name="l00272"></a>00272   }
<a name="l00273"></a>00273   <span class="keywordflow">else</span>
<a name="l00274"></a>00274   {
<a name="l00275"></a>00275     lumLeft = 0; lumRight = 255;
<a name="l00276"></a>00276     redLeft = 0; redRight = 255;
<a name="l00277"></a>00277     greenLeft = 0; greenRight = 255;
<a name="l00278"></a>00278     blueLeft = 0; blueRight = 255;
<a name="l00279"></a>00279   }
<a name="l00280"></a>00280 }
<a name="l00281"></a>00281 <span class="comment">//==============================================</span>
<a name="l00282"></a><a class="code" href="classHistogramEditor.html#bafd2847c061763cd7c16bc500fe1bdd">00282</a> <span class="keywordtype">void</span> <a class="code" href="classHistogramEditor.html#bafd2847c061763cd7c16bc500fe1bdd" title="updates adjusted preview image">HistogramEditor::generateAdjustedPreviewImage</a>()
<a name="l00283"></a>00283 {
<a name="l00284"></a>00284   <span class="comment">//get original image</span>
<a name="l00285"></a>00285   QImage origImage = <a class="code" href="classHistogramEditor.html#c3cefbf518300bd46401606802584b57" title="Preview image.">previewInterface</a>-&gt;<a class="code" href="classSplitViewInterface.html#7139f30dcf4faa4afa1fa837334a088d" title="returns orig image object">getOrigImage</a>();
<a name="l00286"></a>00286 
<a name="l00287"></a>00287   <span class="comment">//construct adjusted image</span>
<a name="l00288"></a>00288   QImage adjustedImage = origImage.copy();
<a name="l00289"></a>00289   <a class="code" href="classHistogramEditor.html#84e9f69ff2889a4baaf2d8e620a36554">adjustImage</a>( adjustedImage );
<a name="l00290"></a>00290   
<a name="l00291"></a>00291   <span class="comment">//set adjusted image</span>
<a name="l00292"></a>00292   <a class="code" href="classHistogramEditor.html#c3cefbf518300bd46401606802584b57" title="Preview image.">previewInterface</a>-&gt;<a class="code" href="classSplitViewInterface.html#d7328bc93d69a28310a23d9294ec29d7" title="sets adjusted image and repaints">setAdjustedImage</a>( adjustedImage );
<a name="l00293"></a>00293 }
<a name="l00294"></a>00294 <span class="comment">//==============================================</span>
<a name="l00295"></a><a class="code" href="classHistogramEditor.html#84e9f69ff2889a4baaf2d8e620a36554">00295</a> <span class="keywordtype">void</span> <a class="code" href="classHistogramEditor.html#84e9f69ff2889a4baaf2d8e620a36554">HistogramEditor::adjustImage</a>( QImage &amp;image )
<a name="l00296"></a>00296 {
<a name="l00297"></a>00297   <span class="comment">//obtain histogram left and right boundaries</span>
<a name="l00298"></a>00298   <span class="comment">//sanity check</span>
<a name="l00299"></a>00299   <span class="keywordtype">int</span> lumLeft, lumRight, redLeft, redRight, greenLeft, greenRight, blueLeft, blueRight;
<a name="l00300"></a>00300   <span class="keywordflow">if</span>( <a class="code" href="classHistogramEditor.html#6caaa3aada0953fec4c1329d94737cef" title="Histogram view.">histogramInterface</a> )
<a name="l00301"></a>00301   {
<a name="l00302"></a>00302     <a class="code" href="classHistogramEditor.html#6caaa3aada0953fec4c1329d94737cef" title="Histogram view.">histogramInterface</a>-&gt;<a class="code" href="classHistogramInterface.html#ce352a748cf063b12cd22d54f1460680" title="returns histogram boundaries">getHistBoundaries</a>( lumLeft, lumRight,
<a name="l00303"></a>00303                                            redLeft, redRight,
<a name="l00304"></a>00304                                            greenLeft, greenRight,
<a name="l00305"></a>00305                                            blueLeft, blueRight );
<a name="l00306"></a>00306   }
<a name="l00307"></a>00307   <span class="keywordflow">else</span>
<a name="l00308"></a>00308   {
<a name="l00309"></a>00309     lumLeft = 0; lumRight = 255;
<a name="l00310"></a>00310     redLeft = 0; redRight = 255;
<a name="l00311"></a>00311     greenLeft = 0; greenRight = 255;
<a name="l00312"></a>00312     blueLeft = 0; blueRight = 255;
<a name="l00313"></a>00313   }
<a name="l00314"></a>00314   
<a name="l00315"></a>00315   <span class="comment">//modify image</span>
<a name="l00316"></a>00316   <span class="keywordtype">double</span> displayToOneScalar = 1.0/255.0;
<a name="l00317"></a>00317   <span class="keywordtype">double</span> scaledMeanR = displayToOneScalar*<a class="code" href="classHistogramEditor.html#ef547637cba09d72bbb8769a5012992f">scaleColor</a>( 255.0*<a class="code" href="classHistogramEditor.html#7465081e30a87e34552434d4863a15ab" title="Mean color values.">meanR</a>, redLeft, redRight );
<a name="l00318"></a>00318   <span class="keywordtype">double</span> scaledMeanG = displayToOneScalar*<a class="code" href="classHistogramEditor.html#ef547637cba09d72bbb8769a5012992f">scaleColor</a>( 255.0*<a class="code" href="classHistogramEditor.html#32535a647e5ff5e67b229df42b475a78">meanG</a>, greenLeft, greenRight );
<a name="l00319"></a>00319   <span class="keywordtype">double</span> scaledMeanB = displayToOneScalar*<a class="code" href="classHistogramEditor.html#ef547637cba09d72bbb8769a5012992f">scaleColor</a>( 255.0*<a class="code" href="classHistogramEditor.html#38831069b820cd8156f0df1510fba666">meanB</a>, blueLeft, blueRight );
<a name="l00320"></a>00320   
<a name="l00321"></a>00321   <span class="keywordtype">double</span> brightnessScalar, addedBrightnessColor;
<a name="l00322"></a>00322   <span class="keywordflow">if</span>(<a class="code" href="classHistogramEditor.html#9f4cfe8de5107624f038d82c5b35b637" title="Brightness slider.">brightness</a>-&gt;value() &lt; 0)
<a name="l00323"></a>00323   {
<a name="l00324"></a>00324     brightnessScalar = ((double)(<a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a> + <a class="code" href="classHistogramEditor.html#9f4cfe8de5107624f038d82c5b35b637" title="Brightness slider.">brightness</a>-&gt;value()))/<a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a>;
<a name="l00325"></a>00325     addedBrightnessColor = 1.0 - brightnessScalar;
<a name="l00326"></a>00326   }
<a name="l00327"></a>00327   <span class="keywordflow">else</span>
<a name="l00328"></a>00328   {
<a name="l00329"></a>00329     brightnessScalar = ((double)(<a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a> - <a class="code" href="classHistogramEditor.html#9f4cfe8de5107624f038d82c5b35b637" title="Brightness slider.">brightness</a>-&gt;value()))/<a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a>;
<a name="l00330"></a>00330     addedBrightnessColor = 0.0;
<a name="l00331"></a>00331   }
<a name="l00332"></a>00332   
<a name="l00333"></a>00333   <span class="keywordtype">int</span> x, y;  
<a name="l00334"></a>00334   QRgb* rgb;
<a name="l00335"></a>00335   <span class="keywordtype">double</span> r,g,<a class="code" href="jpegInternal_8h.html#f320905358fa78701e4cc60b6135601f">b</a>;
<a name="l00336"></a>00336   <span class="keywordtype">double</span> h,s,v;
<a name="l00337"></a>00337   <span class="keywordtype">int</span> rPrime, gPrime, bPrime;
<a name="l00338"></a>00338   uchar* scanLine;
<a name="l00339"></a>00339   
<a name="l00340"></a>00340   <span class="keywordflow">for</span>( y=0; y&lt;image.height(); y++)
<a name="l00341"></a>00341   {   
<a name="l00342"></a>00342     scanLine = image.scanLine(y);
<a name="l00343"></a>00343     <span class="keywordflow">for</span>( x=0; x&lt;image.width(); x++)
<a name="l00344"></a>00344     {
<a name="l00345"></a>00345       <span class="comment">//get rgb value</span>
<a name="l00346"></a>00346       rgb = ((QRgb*)scanLine+x);
<a name="l00347"></a>00347       r = qRed(*rgb);
<a name="l00348"></a>00348       g = qGreen(*rgb);
<a name="l00349"></a>00349       b = qBlue(*rgb);
<a name="l00350"></a>00350       
<a name="l00351"></a>00351       <span class="comment">//apply histogram boundaries</span>
<a name="l00352"></a>00352       <a class="code" href="imageTools_8cpp.html#7769c25727d6caedf20321d238b3828d" title="Convert a RGB color triplet to HSV.">RGBtoHSV</a>(r,g,b,&amp;h,&amp;s,&amp;v);
<a name="l00353"></a>00353       v = <a class="code" href="classHistogramEditor.html#ef547637cba09d72bbb8769a5012992f">scaleColor</a>( v, lumLeft, lumRight );
<a name="l00354"></a>00354       <a class="code" href="imageTools_8cpp.html#a4ea508b635b1a7648bb5834132d4681" title="Convert a HSV color triplet to RGB.">HSVtoRGB</a>( &amp;r,&amp;g,&amp;b, h,s,v);         
<a name="l00355"></a>00355       
<a name="l00356"></a>00356       r = <a class="code" href="classHistogramEditor.html#ef547637cba09d72bbb8769a5012992f">scaleColor</a>( r, redLeft, redRight );
<a name="l00357"></a>00357       g = <a class="code" href="classHistogramEditor.html#ef547637cba09d72bbb8769a5012992f">scaleColor</a>( g, greenLeft, greenRight );
<a name="l00358"></a>00358       b = <a class="code" href="classHistogramEditor.html#ef547637cba09d72bbb8769a5012992f">scaleColor</a>( b, blueLeft, blueRight );
<a name="l00359"></a>00359       
<a name="l00360"></a>00360       <span class="comment">//convert to 0-1 scale</span>
<a name="l00361"></a>00361       r = r*displayToOneScalar;
<a name="l00362"></a>00362       g = g*displayToOneScalar;
<a name="l00363"></a>00363       b = b*displayToOneScalar;
<a name="l00364"></a>00364       
<a name="l00365"></a>00365       <span class="comment">//adjust contrast</span>
<a name="l00366"></a>00366       r = ( (r-scaledMeanR) * (<a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a>-<a class="code" href="classHistogramEditor.html#2628052b95734019ed8bd3d5cf084b22" title="Contrast slider.">contrast</a>-&gt;value()) )/<a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a> + scaledMeanR;
<a name="l00367"></a>00367       g = ( (g-scaledMeanG) * (<a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a>-<a class="code" href="classHistogramEditor.html#2628052b95734019ed8bd3d5cf084b22" title="Contrast slider.">contrast</a>-&gt;value()) )/<a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a> + scaledMeanG;
<a name="l00368"></a>00368       b = ( (b-scaledMeanB) * (<a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a>-<a class="code" href="classHistogramEditor.html#2628052b95734019ed8bd3d5cf084b22" title="Contrast slider.">contrast</a>-&gt;value()) )/<a class="code" href="grainEditor_8cpp.html#4ded029c11c97d844b3bab790eeae2af">SLIDER_RADIUS</a> + scaledMeanB;
<a name="l00369"></a>00369       
<a name="l00370"></a>00370       <span class="comment">//apply brightness adjustment</span>
<a name="l00371"></a>00371       <span class="comment">//http://www.sgi.com/misc/grafica/interp/</span>
<a name="l00372"></a>00372       r = brightnessScalar*r + addedBrightnessColor;
<a name="l00373"></a>00373       g = brightnessScalar*g + addedBrightnessColor;
<a name="l00374"></a>00374       b = brightnessScalar*b + addedBrightnessColor;
<a name="l00375"></a>00375       
<a name="l00376"></a>00376       <span class="comment">//scale and clamp to 0-255 range</span>
<a name="l00377"></a>00377       rPrime = (int) QMIN( QMAX((r*255), 0), 255 );
<a name="l00378"></a>00378       gPrime = (int) QMIN( QMAX((g*255), 0), 255 );
<a name="l00379"></a>00379       bPrime = (int) QMIN( QMAX((b*255), 0), 255 );
<a name="l00380"></a>00380       
<a name="l00381"></a>00381       <span class="comment">//set adjusted color value</span>
<a name="l00382"></a>00382       *rgb = qRgb(rPrime, gPrime, bPrime);          
<a name="l00383"></a>00383     } <span class="comment">//x</span>
<a name="l00384"></a>00384   } <span class="comment">//y  </span>
<a name="l00385"></a>00385 }
<a name="l00386"></a>00386 <span class="comment">//==============================================</span>
<a name="l00387"></a><a class="code" href="classHistogramEditor.html#ef547637cba09d72bbb8769a5012992f">00387</a> <span class="keywordtype">double</span> <a class="code" href="classHistogramEditor.html#ef547637cba09d72bbb8769a5012992f">HistogramEditor::scaleColor</a>( <span class="keywordtype">double</span> color, <span class="keywordtype">int</span> left, <span class="keywordtype">int</span> right )
<a name="l00388"></a>00388 {
<a name="l00389"></a>00389   <span class="keywordflow">return</span> QMAX( QMIN( (255.0*(color-left)) / (right-left), 255), 0 );  
<a name="l00390"></a>00390 }
<a name="l00391"></a>00391 <span class="comment">//==============================================</span>
<a name="l00392"></a><a class="code" href="classHistogramEditor.html#1762e200233db3b9d0e110b67c6fd542">00392</a> <span class="keywordtype">void</span> <a class="code" href="classHistogramEditor.html#1762e200233db3b9d0e110b67c6fd542">HistogramEditor::keyPressEvent</a>(QKeyEvent *e)
<a name="l00393"></a>00393 {
<a name="l00394"></a>00394   <span class="keywordflow">if</span>(e-&gt;key() == Qt::Key_Control )
<a name="l00395"></a>00395   {
<a name="l00396"></a>00396     <a class="code" href="splitViewInterface_8h.html#a4478246983e5a13f84754204fb5ab80" title="current preview mode">PREVIEW_MODE</a> curMode = (<a class="code" href="splitViewInterface_8h.html#a4478246983e5a13f84754204fb5ab80" title="current preview mode">PREVIEW_MODE</a>) <a class="code" href="classHistogramEditor.html#16747259c09a2c24d59b396ac63dc588">previewSelection</a>-&gt;currentItem();
<a name="l00397"></a>00397     <span class="keywordflow">if</span>(curMode == <a class="code" href="splitViewInterface_8h.html#a4478246983e5a13f84754204fb5ab804b0845a3961eed793f478ae334aad65d">ORIGINAL_IMAGE</a>)
<a name="l00398"></a>00398       <a class="code" href="classHistogramEditor.html#c3cefbf518300bd46401606802584b57" title="Preview image.">previewInterface</a>-&gt;<a class="code" href="classSplitViewInterface.html#e6cd0c9f1fb64b0313063f59aa748943" title="Sets preview mode.">setPreviewMode</a>( <a class="code" href="splitViewInterface_8h.html#a4478246983e5a13f84754204fb5ab80e5a5e7966f92d18ce66136439e1303bd">ADJUSTED_IMAGE</a>, <span class="keyword">true</span> );
<a name="l00399"></a>00399     <span class="keywordflow">else</span> <span class="keywordflow">if</span>(curMode == <a class="code" href="splitViewInterface_8h.html#a4478246983e5a13f84754204fb5ab80e5a5e7966f92d18ce66136439e1303bd">ADJUSTED_IMAGE</a>)
<a name="l00400"></a>00400       <a class="code" href="classHistogramEditor.html#c3cefbf518300bd46401606802584b57" title="Preview image.">previewInterface</a>-&gt;<a class="code" href="classSplitViewInterface.html#e6cd0c9f1fb64b0313063f59aa748943" title="Sets preview mode.">setPreviewMode</a>( <a class="code" href="splitViewInterface_8h.html#a4478246983e5a13f84754204fb5ab804b0845a3961eed793f478ae334aad65d">ORIGINAL_IMAGE</a>, <span class="keyword">true</span> );
<a name="l00401"></a>00401     <span class="keywordflow">else</span>
<a name="l00402"></a>00402       <a class="code" href="classHistogramEditor.html#c3cefbf518300bd46401606802584b57" title="Preview image.">previewInterface</a>-&gt;<a class="code" href="classSplitViewInterface.html#e6cd0c9f1fb64b0313063f59aa748943" title="Sets preview mode.">setPreviewMode</a>( <a class="code" href="splitViewInterface_8h.html#a4478246983e5a13f84754204fb5ab80f94a0ed6eca377f0937a43f5b9f29c9d">INV_SPLIT_VIEW</a> );
<a name="l00403"></a>00403   }
<a name="l00404"></a>00404   <span class="keywordflow">else</span> { <a class="code" href="classHistogramEditor.html#1762e200233db3b9d0e110b67c6fd542">QDialog::keyPressEvent</a>(e); }
<a name="l00405"></a>00405 }
<a name="l00406"></a>00406 <span class="comment">//==============================================</span>
<a name="l00407"></a><a class="code" href="classHistogramEditor.html#66c1f2cf3030b472f58dc3ce26946a50">00407</a> <span class="keywordtype">void</span> <a class="code" href="classHistogramEditor.html#66c1f2cf3030b472f58dc3ce26946a50">HistogramEditor::keyReleaseEvent</a>(QKeyEvent *e)
<a name="l00408"></a>00408 {
<a name="l00409"></a>00409   <span class="keywordflow">if</span>(e-&gt;key() == Qt::Key_Control )
<a name="l00410"></a>00410   {
<a name="l00411"></a>00411     <a class="code" href="classHistogramEditor.html#c3cefbf518300bd46401606802584b57" title="Preview image.">previewInterface</a>-&gt;<a class="code" href="classSplitViewInterface.html#e6cd0c9f1fb64b0313063f59aa748943" title="Sets preview mode.">setPreviewMode</a>( (<a class="code" href="splitViewInterface_8h.html#a4478246983e5a13f84754204fb5ab80" title="current preview mode">PREVIEW_MODE</a>) <a class="code" href="classHistogramEditor.html#16747259c09a2c24d59b396ac63dc588">previewSelection</a>-&gt;currentItem(), 
<a name="l00412"></a>00412                                       false );
<a name="l00413"></a>00413   }
<a name="l00414"></a>00414   <span class="keywordflow">else</span> { <a class="code" href="classHistogramEditor.html#66c1f2cf3030b472f58dc3ce26946a50">QDialog::keyReleaseEvent</a>(e); }
<a name="l00415"></a>00415 }
<a name="l00416"></a>00416 <span class="comment">//==============================================</span>
<a name="l00417"></a>00417 
<a name="l00418"></a>00418 
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