Help/GUI/Cocoa-GUI/SCLevelIndicator.html

   1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
   2 <html>
   3 <head>
   4 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
   5 <meta http-equiv="Content-Style-Type" content="text/css">
   6 <title></title>
   7 <meta name="Generator" content="Cocoa HTML Writer">
   8 <meta name="CocoaVersion" content="949.43">
   9 <style type="text/css">
  10 p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica}
  11 p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica; min-height: 14.0px}
  12 p.p3 {margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px Monaco; min-height: 12.0px}
  13 p.p4 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica; color: #001bec}
  14 p.p5 {margin: 0.0px 0.0px 0.0px 0.0px; font: 14.0px Helvetica}
  15 p.p6 {margin: 0.0px 0.0px 0.0px 57.0px; text-indent: -57.0px; font: 9.0px Monaco; min-height: 12.0px}
  16 p.p7 {margin: 0.0px 0.0px 0.0px 57.0px; text-indent: -57.0px; font: 12.0px Helvetica}
  17 p.p8 {margin: 0.0px 0.0px 0.0px 57.0px; text-indent: -57.0px; font: 12.0px Helvetica; min-height: 14.0px}
  18 p.p9 {margin: 0.0px 0.0px 0.0px 85.0px; text-indent: -85.0px; font: 12.0px Helvetica}
  19 p.p10 {margin: 0.0px 0.0px 0.0px 57.0px; text-indent: -57.0px; font: 9.0px Monaco}
  20 p.p11 {margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px Monaco}
  21 p.p12 {margin: 0.0px 0.0px 0.0px 57.0px; text-indent: -57.0px; font: 14.0px Helvetica}
  22 p.p13 {margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px Monaco; color: #9f2423}
  23 p.p14 {margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px Monaco; color: #606060}
  24 span.s1 {font: 18.0px Helvetica}
  25 span.s2 {color: #0049f3}
  26 span.s3 {color: #000000}
  27 span.s4 {text-decoration: underline}
  28 span.s5 {color: #6f7178}
  29 span.s6 {color: #0016bd}
  30 span.s7 {color: #003cf7}
  31 span.s8 {color: #0032b5}
  32 span.s9 {color: #0020bb}
  33 span.s10 {color: #3c6d00}
  34 span.s11 {color: #9f2423}
  35 span.Apple-tab-span {white-space:pre}
  36 </style>
  37 </head>
  38 <body>
  39 <p class="p1"><span class="s1"><b>SCLevelIndicator<span class="Apple-tab-span"> </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></b></span><b>a level indicator GUI widget</b><span class="s1"><b><span class="Apple-tab-span">  </span></b></span></p>
  40 <p class="p2"><br></p>
  41 <p class="p1"><b>Inherits from: </b><a href="../../Core/Object.html"><span class="s2"><b>Object</b></span></a><b> : </b><a href="SCView.html"><span class="s2"><b>SCView</b></span></a></p>
  42 <p class="p3"><br></p>
  43 <p class="p1">A level indicator view, suitable for use as a level or peak meter, etc.</p>
  44 <p class="p2"><br></p>
  45 <p class="p4"><span class="s3"><b>See also:</b> <a href="SCRangeSlider.html"><span class="s4">SCRangeSlider</span></a></span></p>
  46 <p class="p2"><br></p>
  47 <p class="p5"><b>Creation / Class Methods</b></p>
  48 <p class="p6"><br></p>
  49 <p class="p7"><b><span class="Apple-tab-span">  </span>*new (parent, bounds)</b></p>
  50 <p class="p8"><b><span class="Apple-tab-span">  </span></b></p>
  51 <p class="p9"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>parent </b>- The parent view.</p>
  52 <p class="p9"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>bounds </b>- An instance of <a href="../../Geometry/Rect.html"><span class="s5">Rect</span></a>, or a <a href="../../Geometry/Point.html"><span class="s5">Point</span></a> indicating width@height.</p>
  53 <p class="p8"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
  54 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>(</p>
  55 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>w = <span class="s6">Window</span>.new.front;</p>
  56 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a = <span class="s6">SCLevelIndicator</span>(w, <span class="s6">Rect</span>(10, 10, 20, 160));</p>
  57 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>)</p>
  58 <p class="p6"><br></p>
  59 <p class="p6"><br></p>
  60 <p class="p12"><b>Accessing Instance and Class Variables</b></p>
  61 <p class="p8"><span class="Apple-tab-span">     </span></p>
  62 <p class="p7"><b><span class="Apple-tab-span">  </span>value</b></p>
  63 <p class="p8"><b><span class="Apple-tab-span">  </span></b></p>
  64 <p class="p7"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b>Gets the current level of the view.</p>
  65 <p class="p6"><br></p>
  66 <p class="p6"><br></p>
  67 <p class="p7"><b><span class="Apple-tab-span">  </span>value_ (val)</b></p>
  68 <p class="p8"><b><span class="Apple-tab-span">  </span></b></p>
  69 <p class="p7"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b>Sets the current level of the view</p>
  70 <p class="p9"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>val </b>- A <a href="../../Math/Float.html"><span class="s7">Float</span></a> between 0 and 1.</p>
  71 <p class="p6"><br></p>
  72 <p class="p6"><br></p>
  73 <p class="p7"><b><span class="Apple-tab-span">  </span>valueAction_ (val)</b></p>
  74 <p class="p8"><b><span class="Apple-tab-span">  </span></b></p>
  75 <p class="p7"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b>As value but calls the action function. Currently not used.</p>
  76 <p class="p9"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>val </b>- A <a href="../../Math/Float.html"><span class="s7">Float</span></a> between 0 and 1.</p>
  77 <p class="p6"><br></p>
  78 <p class="p6"><br></p>
  79 <p class="p7"><b><span class="Apple-tab-span">  </span>warning_ (val)</b></p>
  80 <p class="p8"><b><span class="Apple-tab-span">  </span></b></p>
  81 <p class="p7"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b>Styles 0 and 2 (see below) implement a warning display. If critical is &gt; <b>warning</b> the view will turn yellow if <b>value</b> is &gt;= to <b>val</b>. If critical is &lt;= <b>warning</b> the view will turn yellow if <b>value</b> is &lt;= to <b>val</b>. If <b>drawsPeak</b> is true warning will be displayed based on <b>peakLevel </b>rather than <b>value</b>.</p>
  82 <p class="p9"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>val </b>- A <a href="../../Math/Float.html"><span class="s7">Float</span></a> between 0 and 1.</p>
  83 <p class="p8"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
  84 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>(</p>
  85 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>w = <span class="s6">Window</span>.new.front;</p>
  86 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a = <span class="s6">SCLevelIndicator</span>(w, <span class="s6">Rect</span>(10, 10, 20, 160));</p>
  87 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.value = 0.5;</p>
  88 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>)</p>
  89 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.warning = 0.6; a.critical = 0.9;</p>
  90 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.value = 0.7;</p>
  91 <p class="p6"><br></p>
  92 <p class="p6"><br></p>
  93 <p class="p7"><b><span class="Apple-tab-span">  </span>critical_ (val)</b></p>
  94 <p class="p8"><b><span class="Apple-tab-span">  </span></b></p>
  95 <p class="p7"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b>Styles 0 and 2 (see below) implement a critical display. If critical is &gt; <b>warning</b> the view will turn red if <b>value</b> is &gt;= to <b>val</b>. If critical is &lt;= <b>warning</b> the view will turn yellow if <b>value</b> is &lt;= to <b>val</b>. If <b>drawsPeak</b> is true critical will be displayed based on <b>peakLevel </b>rather than <b>value</b>.</p>
  96 <p class="p9"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>val </b>- A <a href="../../Math/Float.html"><span class="s7">Float</span></a> between 0 and 1.</p>
  97 <p class="p8"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
  98 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>(</p>
  99 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>w = <span class="s6">Window</span>.new.front;</p>
 100 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a = <span class="s6">SCLevelIndicator</span>(w, <span class="s6">Rect</span>(10, 10, 20, 160));</p>
 101 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.style = 2;</p>
 102 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.numSteps = 10;</p>
 103 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.value = 0.5;</p>
 104 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>)</p>
 105 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.warning = 0.6; a.critical = 0.9;</p>
 106 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.value = 1;</p>
 107 <p class="p6"><br></p>
 108 <p class="p6"><br></p>
 109 <p class="p7"><b><span class="Apple-tab-span">  </span>style_ (val)</b></p>
 110 <p class="p8"><b><span class="Apple-tab-span">  </span></b></p>
 111 <p class="p7"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b>Sets the style of the view</p>
 112 <p class="p9"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>val </b>- An <a href="../../Math/Integer.html"><span class="s7">Integer</span></a> from 0 to 3. 0 = colored bar; 1 = graduated black lines; 2 = LED style (see <b>numSteps_</b>); 3 = LED style with custom image (see <b>image_</b>).</p>
 113 <p class="p8"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
 114 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>(</p>
 115 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>w = <span class="s8">Window</span>.new.front;</p>
 116 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>w.addFlowLayout;</p>
 117 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>4.do({|i|</p>
 118 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a = <span class="s8">SCLevelIndicator</span>(w, <span class="s8">Rect</span>(0, 0, 20, 200));</p>
 119 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.style = i;</p>
 120 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.numSteps = 10;</p>
 121 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.value = 0.5;</p>
 122 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>});</p>
 123 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>)</p>
 124 <p class="p6"><br></p>
 125 <p class="p6"><br></p>
 126 <p class="p7"><b><span class="Apple-tab-span">  </span>numSteps_ (val)</b></p>
 127 <p class="p8"><b><span class="Apple-tab-span">  </span></b></p>
 128 <p class="p7"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b>The number of steps used in styles 2 and 3. (See <b>style_</b>)</p>
 129 <p class="p9"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>val </b>- A positive <a href="../../Math/Integer.html"><span class="s7">Integer</span></a>.</p>
 130 <p class="p8"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
 131 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>(</p>
 132 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>w = <span class="s8">Window</span>.new.front;</p>
 133 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a = <span class="s8">SCLevelIndicator</span>(w, <span class="s8">Rect</span>(10, 10, 200, 20));</p>
 134 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.style = 2;</p>
 135 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.value = 1;</p>
 136 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>)</p>
 137 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.numSteps = 10;</p>
 138 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.numSteps = 20;</p>
 139 <p class="p6"><br></p>
 140 <p class="p6"><br></p>
 141 <p class="p7"><b><span class="Apple-tab-span">  </span>image_ (image)</b></p>
 142 <p class="p8"><b><span class="Apple-tab-span">  </span></b></p>
 143 <p class="p7"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b>Sets the image used in style 3. See below for an example.</p>
 144 <p class="p9"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>image </b>- An <a href="SCImage/SCImage.html"><span class="s7">SCImage</span></a>. The default image is the SC cube.</p>
 145 <p class="p6"><br></p>
 146 <p class="p6"><br></p>
 147 <p class="p7"><b><span class="Apple-tab-span">  </span>numTicks_ (ticks)</b></p>
 148 <p class="p8"><b><span class="Apple-tab-span">  </span></b></p>
 149 <p class="p7"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b>The number of ticks to display in the view's scale.</p>
 150 <p class="p9"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>ticks </b>- An <a href="../../Math/Integer.html"><span class="s7">Integer</span></a> &gt;= 0.</p>
 151 <p class="p8"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
 152 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>(</p>
 153 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>w = <span class="s8">Window</span>.new.front;</p>
 154 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>w.view.background = Color.black;</p>
 155 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a = <span class="s8">SCLevelIndicator</span>(w, <span class="s8">Rect</span>(10, 10, 300, 30));</p>
 156 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.numTicks = 11;</p>
 157 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.value = 0.5;</p>
 158 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>)</p>
 159 <p class="p6"><br></p>
 160 <p class="p6"><br></p>
 161 <p class="p7"><b><span class="Apple-tab-span">  </span>numMajorTicks_ (ticks)</b></p>
 162 <p class="p8"><b><span class="Apple-tab-span">  </span></b></p>
 163 <p class="p7"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b>The number of ticks in the view's scale which will be larger.</p>
 164 <p class="p9"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>ticks </b>- An <a href="../../Math/Integer.html"><span class="s7">Integer</span></a> &gt;= 0.</p>
 165 <p class="p8"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
 166 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>(</p>
 167 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>w = <span class="s8">Window</span>.new.front;</p>
 168 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>w.view.background = Color.black;</p>
 169 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a = <span class="s8">SCLevelIndicator</span>(w, <span class="s8">Rect</span>(10, 10, 300, 30));</p>
 170 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.numTicks = 11;</p>
 171 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.numMajorTicks = 3;</p>
 172 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.value = 0.5;</p>
 173 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>)</p>
 174 <p class="p6"><br></p>
 175 <p class="p6"><br></p>
 176 <p class="p7"><b><span class="Apple-tab-span">  </span>drawsPeak_ (bool)</b></p>
 177 <p class="p8"><b><span class="Apple-tab-span">  </span></b></p>
 178 <p class="p7"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b>Determines whether the view draws a separate peak display. This can be useful for displaying both peak and RMS values. If <b>drawsPeak</b> is true <b>warning</b> and <b>critical </b>(see above) will be displayed based on <b>peakLevel </b>rather than <b>value</b> in styles 0 and 2.</p>
 179 <p class="p9"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>bool </b>- A <a href="../../Core/Boolean.html"><span class="s7">Boolean</span></a>. The default is false.</p>
 180 <p class="p8"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
 181 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>(</p>
 182 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>w = <span class="s9">Window</span>.new.front;</p>
 183 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a = <span class="s9">SCLevelIndicator</span>(w, <span class="s9">Rect</span>(10, 10, 300, 30));</p>
 184 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.drawsPeak = <span class="s9">true</span>;</p>
 185 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.style = 1;</p>
 186 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.value = 0.5;</p>
 187 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.peakLevel = 0.6;</p>
 188 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>)</p>
 189 <p class="p6"><br></p>
 190 <p class="p6"><br></p>
 191 <p class="p7"><b><span class="Apple-tab-span">  </span>peakLevel_ (val)</b></p>
 192 <p class="p8"><b><span class="Apple-tab-span">  </span></b></p>
 193 <p class="p7"><b><span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></b>Sets the level of the peak display. (See <b>drawsPeak_</b>)</p>
 194 <p class="p9"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>val </b>- A <a href="../../Math/Float.html"><span class="s7">Float</span></a> between 0 and 1.</p>
 195 <p class="p8"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span></p>
 196 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>(</p>
 197 <p class="p10"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>w = <span class="s9">Window</span>.new.front;</p>
 198 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a = <span class="s9">SCLevelIndicator</span>(w, <span class="s9">Rect</span>(10, 10, 20, 160));</p>
 199 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.drawsPeak = <span class="s9">true</span>;</p>
 200 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.peakLevel = 0.6)</p>
 201 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>)</p>
 202 <p class="p6"><br></p>
 203 <p class="p6"><br></p>
 204 <p class="p12"><b>Examples</b></p>
 205 <p class="p3"><br></p>
 206 <p class="p3"><br></p>
 207 <p class="p11">s.boot;</p>
 208 <p class="p3"><br></p>
 209 <p class="p13">// something to meter</p>
 210 <p class="p11">(</p>
 211 <p class="p14"><span class="s3">b = </span><span class="s9">Buffer</span><span class="s3">.read(s, </span>"sounds/a11wlk01.wav"<span class="s3">);<span class="Apple-tab-span"> </span></span></p>
 212 <p class="p11">x = { <span class="s9">var</span> colum, noise, imp, delimp, mul = 1;</p>
 213 <p class="p11"><span class="Apple-tab-span">    </span>imp = <span class="s9">Impulse</span>.kr(10);</p>
 214 <p class="p11"><span class="Apple-tab-span">    </span>delimp = <span class="s9">Delay1</span>.kr(imp);</p>
 215 <p class="p11"><span class="Apple-tab-span">    </span>colum = <span class="s9">PlayBuf</span>.ar(1, b, <span class="s9">BufRateScale</span>.kr(b), loop: 1) * mul;</p>
 216 <p class="p13"><span class="s3"><span class="Apple-tab-span">   </span></span>// measure rms and Peak</p>
 217 <p class="p11"><span class="Apple-tab-span">    </span><span class="s9">SendReply</span>.kr(imp, <span class="s10">'/levels'</span>, [<span class="s9">Amplitude</span>.kr(colum), <span class="s9">K2A</span>.ar(<span class="s9">Peak</span>.ar(colum, delimp).lag(0, 3))]);</p>
 218 <p class="p11"><span class="Apple-tab-span">    </span>colum;</p>
 219 <p class="p11">}.play;</p>
 220 <p class="p11">)</p>
 221 <p class="p3"><br></p>
 222 <p class="p13">// a window and responder</p>
 223 <p class="p13">// default style is coloured / solid</p>
 224 <p class="p11">(</p>
 225 <p class="p11">w = <span class="s9">Window</span>.new.front;</p>
 226 <p class="p11">a = <span class="s9">SCLevelIndicator</span>(w, <span class="s9">Rect</span>(10, 10, 20, 160));</p>
 227 <p class="p11">o = <span class="s9">OSCresponder</span>(s.addr, <span class="s10">'/levels'</span>, {<span class="s9">arg</span> time, resp, msg;</p>
 228 <p class="p11"><span class="Apple-tab-span">    </span>{</p>
 229 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.value = msg[3].ampdb.linlin(-40, 0, 0, 1);</p>
 230 <p class="p11"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>a.peakLevel = msg[4].ampdb.linlin(-40, 0, 0, 1);</p>
 231 <p class="p11"><span class="Apple-tab-span">    </span>}.defer;</p>
 232 <p class="p11">}).add;</p>
 233 <p class="p11">w.onClose = {o.remove; x.free};</p>
 234 <p class="p11">)</p>
 235 <p class="p3"><br></p>
 236 <p class="p13">// styles 0 and 2 support warning and critical levels</p>
 237 <p class="p11">(</p>
 238 <p class="p11">a.warning = -6.dbamp;</p>
 239 <p class="p11">a.critical = -3.dbamp;</p>
 240 <p class="p11">)</p>
 241 <p class="p3"><br></p>
 242 <p class="p13">// optionally show peak level</p>
 243 <p class="p11">(</p>
 244 <p class="p11">a.warning = 0;</p>
 245 <p class="p11">a.critical = 0;</p>
 246 <p class="p11">a.drawsPeak = <span class="s9">true</span>;</p>
 247 <p class="p11">)</p>
 248 <p class="p3"><br></p>
 249 <p class="p13">// style 1 is black bars</p>
 250 <p class="p11">a.style = 1</p>
 251 <p class="p3"><br></p>
 252 <p class="p13">// looks good with a background</p>
 253 <p class="p11">a.background = <span class="s9">Gradient</span>(<span class="s9">Color</span>.red, <span class="s9">Color</span>.green, <span class="s10">\v</span>);</p>
 254 <p class="p3"><br></p>
 255 <p class="p13">// all styles can have ticks</p>
 256 <p class="p11">(</p>
 257 <p class="p11">a.background = <span class="s9">Color</span>.clear;</p>
 258 <p class="p11">a.numTicks = 11; <span class="s11">// includes 0;</span></p>
 259 <p class="p11">a.numMajorTicks = 3;<span class="Apple-tab-span">        </span></p>
 260 <p class="p11">)</p>
 261 <p class="p3"><br></p>
 262 <p class="p13">// style 2 is LED</p>
 263 <p class="p11">(</p>
 264 <p class="p11">a.drawsPeak = <span class="s9">false</span>;</p>
 265 <p class="p11">a.style = 2;</p>
 266 <p class="p11">a.numSteps = 10;</p>
 267 <p class="p11">a.numTicks = 0;</p>
 268 <p class="p11">)</p>
 269 <p class="p3"><br></p>
 270 <p class="p13">// style 3 is as 2, but with images</p>
 271 <p class="p13"><span class="s3">a.style = 3; </span>// use default image</p>
 272 <p class="p3"><br></p>
 273 <p class="p13">// make a custom image</p>
 274 <p class="p11">(</p>
 275 <p class="p11">j = <span class="s9">SCImage</span>.new(20,20);</p>
 276 <p class="p11">j.draw({ <span class="s9">arg</span> image;</p>
 277 <p class="p11"><span class="s9">var</span> lozenge;</p>
 278 <p class="p11">lozenge = <span class="s9">Rect</span>(3, 3, 16, 16);</p>
 279 <p class="p11"><span class="s9">Pen</span>.addOval(lozenge);</p>
 280 <p class="p11"><span class="s9">Pen</span>.fillAxialGradient(1@1, 19@19, <span class="s9">Color</span>.new255(255, 165, 0), <span class="s9">Color</span>.new255(238, 232, 170));</p>
 281 <p class="p11"><span class="s9">Pen</span>.width = 1;</p>
 282 <p class="p11"><span class="s9">Pen</span>.strokeColor = <span class="s9">Color</span>.blue;</p>
 283 <p class="p11"><span class="s9">Pen</span>.strokeOval(lozenge);</p>
 284 <p class="p11">});</p>
 285 <p class="p11">a.image = j;</p>
 286 <p class="p11">)</p>
 287 <p class="p3"><br></p>
 288 <p class="p13">// be inspired</p>
 289 <p class="p14"><span class="s3">j = </span><span class="s9">SCImage</span><span class="s3">.openURL(</span>"http://tinyurl.com/7lj55f"<span class="s3">);</span></p>
 290 <p class="p3"><br></p>
 291 <p class="p11">(</p>
 292 <p class="p11">a.bounds = <span class="s9">Rect</span>(10, 10, 380, 80);</p>
 293 <p class="p11">a.numSteps = 5;</p>
 294 <p class="p11">a.image = j;</p>
 295 <p class="p11">)</p>
 296 <p class="p3"><br></p>
 297 </body>
 298 </html>