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Breadcrumbs go here --> <li><a href="modules.html">Modules</a></li> <li><a href="qtgui.html">QtGui</a></li> <li>QColormap</li> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-types">Public Types</a></li> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#static-public-members">Static Public Members</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <h1 class="title">QColormap Class Reference</h1> <!-- $$$QColormap-brief --> <p>The QColormap class maps device independent QColors to device dependent pixel values. <a href="#details">More...</a></p> <!-- @@@QColormap --> <pre class="cpp"> <span class="preprocessor">#include <QColormap></span></pre><ul> <li><a href="qcolormap-members.html">List of all members, including inherited members</a></li> </ul> <a name="public-types"></a> <h2>Public Types</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qcolormap.html#Mode-enum">Mode</a></b> { Direct, Indexed, Gray }</td></tr> </table> <a name="public-functions"></a> <h2>Public Functions</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qcolormap.html#QColormap">QColormap</a></b> ( const QColormap & <i>colormap</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qcolormap.html#dtor.QColormap">~QColormap</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> const QColor </td><td class="memItemRight bottomAlign"><b><a href="qcolormap.html#colorAt">colorAt</a></b> ( uint <i>pixel</i> ) const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> const QVector<QColor> </td><td class="memItemRight bottomAlign"><b><a href="qcolormap.html#colormap">colormap</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qcolormap.html#depth">depth</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> Mode </td><td class="memItemRight bottomAlign"><b><a href="qcolormap.html#mode">mode</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> uint </td><td class="memItemRight bottomAlign"><b><a href="qcolormap.html#pixel">pixel</a></b> ( const QColor & <i>color</i> ) const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qcolormap.html#size">size</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QColormap & </td><td class="memItemRight bottomAlign"><b><a href="qcolormap.html#operator-eq">operator=</a></b> ( const QColormap & <i>colormap</i> )</td></tr> </table> <a name="static-public-members"></a> <h2>Static Public Members</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> HPALETTE </td><td class="memItemRight bottomAlign"><b><a href="qcolormap.html#hPal">hPal</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QColormap </td><td class="memItemRight bottomAlign"><b><a href="qcolormap.html#instance">instance</a></b> ( int <i>screen</i> = -1 )</td></tr> </table> <a name="details"></a> <!-- $$$QColormap-description --> <div class="descr"> <h2>Detailed Description</h2> <p>The QColormap class maps device independent QColors to device dependent pixel values.</p> </div> <!-- @@@QColormap --> <div class="types"> <h2>Member Type Documentation</h2> <!-- $$$Mode$$$Direct$$$Indexed$$$Gray --> <h3 class="fn"><a name="Mode-enum"></a>enum QColormap::<span class="name">Mode</span></h3> <p>This enum describes how <a href="qcolormap.html">QColormap</a> maps device independent RGB values to device dependent pixel values.</p> <table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr> <tr><td class="topAlign"><tt>QColormap::Direct</tt></td><td class="topAlign"><tt>0</tt></td><td class="topAlign">Pixel values are derived directly from the RGB values, also known as "True Color."</td></tr> <tr><td class="topAlign"><tt>QColormap::Indexed</tt></td><td class="topAlign"><tt>1</tt></td><td class="topAlign">Pixel values represent indexes into a vector of available colors, i.e. <a href="qcolormap.html">QColormap</a> uses the index of the color that most closely matches an RGB value.</td></tr> <tr><td class="topAlign"><tt>QColormap::Gray</tt></td><td class="topAlign"><tt>2</tt></td><td class="topAlign">Similar to <tt>Indexed</tt>, pixel values represent a vector of available gray tones. <a href="qcolormap.html">QColormap</a> uses the index of the gray tone that most closely matches the computed gray tone of an RGB value.</td></tr> </table> <!-- @@@Mode --> </div> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$QColormap[overload1]$$$QColormapconstQColormap& --> <h3 class="fn"><a name="QColormap"></a>QColormap::<span class="name">QColormap</span> ( const <span class="type">QColormap</span> & <i>colormap</i> )</h3> <p>Constructs a copy of another <i>colormap</i>.</p> <!-- @@@QColormap --> <!-- $$$~QColormap[overload1]$$$~QColormap --> <h3 class="fn"><a name="dtor.QColormap"></a>QColormap::<span class="name">~QColormap</span> ()</h3> <p>Destroys the colormap.</p> <!-- @@@~QColormap --> <!-- $$$colorAt[overload1]$$$colorAtuint --> <h3 class="fn"><a name="colorAt"></a>const <span class="type"><a href="qcolor.html">QColor</a></span> QColormap::<span class="name">colorAt</span> ( <span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span> <i>pixel</i> ) const</h3> <p>Returns a <a href="qcolor.html">QColor</a> for the <i>pixel</i>.</p> <p><b>See also </b><a href="qcolormap.html#pixel">pixel</a>().</p> <!-- @@@colorAt --> <!-- $$$colormap[overload1]$$$colormap --> <h3 class="fn"><a name="colormap"></a>const <span class="type"><a href="qvector.html">QVector</a></span><<span class="type"><a href="qcolor.html">QColor</a></span>> QColormap::<span class="name">colormap</span> () const</h3> <p>Returns a vector of colors which represents the devices colormap for <tt>Indexed</tt> and <tt>Gray</tt> modes. This function returns an empty vector for <tt>Direct</tt> mode.</p> <p><b>See also </b><a href="qcolormap.html#size">size</a>().</p> <!-- @@@colormap --> <!-- $$$depth[overload1]$$$depth --> <h3 class="fn"><a name="depth"></a><span class="type">int</span> QColormap::<span class="name">depth</span> () const</h3> <p>Returns the depth of the device.</p> <p><b>See also </b><a href="qcolormap.html#size">size</a>().</p> <!-- @@@depth --> <!-- $$$hPal[overload1]$$$hPal --> <h3 class="fn"><a name="hPal"></a><span class="type">HPALETTE</span> QColormap::<span class="name">hPal</span> ()<tt> [static]</tt></h3> <p>This function is only available on Windows.</p> <p>Returns an handle to the HPALETTE used by this colormap. If no HPALETTE is being used, this function returns zero.</p> <!-- @@@hPal --> <!-- $$$instance[overload1]$$$instanceint --> <h3 class="fn"><a name="instance"></a><span class="type">QColormap</span> QColormap::<span class="name">instance</span> ( <span class="type">int</span> <i>screen</i> = -1 )<tt> [static]</tt></h3> <p>Returns the colormap for the specified <i>screen</i>. If <i>screen</i> is -1, this function returns the colormap for the default screen.</p> <!-- @@@instance --> <!-- $$$mode[overload1]$$$mode --> <h3 class="fn"><a name="mode"></a><span class="type"><a href="qcolormap.html#Mode-enum">Mode</a></span> QColormap::<span class="name">mode</span> () const</h3> <p>Returns the mode of this colormap.</p> <p><b>See also </b><a href="qcolormap.html#Mode-enum">QColormap::Mode</a>.</p> <!-- @@@mode --> <!-- $$$pixel[overload1]$$$pixelconstQColor& --> <h3 class="fn"><a name="pixel"></a><span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span> QColormap::<span class="name">pixel</span> ( const <span class="type"><a href="qcolor.html">QColor</a></span> & <i>color</i> ) const</h3> <p>Returns a device dependent pixel value for the <i>color</i>.</p> <p><b>See also </b><a href="qcolormap.html#colorAt">colorAt</a>().</p> <!-- @@@pixel --> <!-- $$$size[overload1]$$$size --> <h3 class="fn"><a name="size"></a><span class="type">int</span> QColormap::<span class="name">size</span> () const</h3> <p>Returns the size of the colormap for <tt>Indexed</tt> and <tt>Gray</tt> modes; Returns -1 for <tt>Direct</tt> mode.</p> <p><b>See also </b><a href="qcolormap.html#colormap">colormap</a>().</p> <!-- @@@size --> <!-- $$$operator=[overload1]$$$operator=constQColormap& --> <h3 class="fn"><a name="operator-eq"></a><span class="type">QColormap</span> & QColormap::<span class="name">operator=</span> ( const <span class="type">QColormap</span> & <i>colormap</i> )</h3> <p>Assigns the given <i>colormap</i> to <i>this</i> color map and returns a reference to <i>this</i> color map.</p> <p>This function was introduced in Qt 4.2.</p> <!-- @@@operator= --> </div> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its subsidiaries. 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