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<div class="title">qwt_knob.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Qwt Widget Library</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * This library is free software; you can redistribute it and/or</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *****************************************************************************/</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#ifndef QWT_KNOB_H</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#define QWT_KNOB_H</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "qwt_global.h"</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "qwt_abstract_slider.h"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">class </span><a class="code" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</a>;</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div><div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="class_qwt_knob.html"> 42</a></span> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_knob.html">QwtKnob</a>: <span class="keyword">public</span> <a class="code" href="class_qwt_abstract_slider.html">QwtAbstractSlider</a></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> {</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  Q_OBJECT</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  Q_ENUMS ( <a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be">KnobStyle</a> <a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95">MarkerStyle</a> )</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  Q_PROPERTY( <a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be">KnobStyle</a> knobStyle READ knobStyle WRITE setKnobStyle )</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  Q_PROPERTY( <span class="keywordtype">int</span> knobWidth READ knobWidth WRITE setKnobWidth )</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  Q_PROPERTY( Qt::Alignment alignment READ alignment WRITE setAlignment )</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  Q_PROPERTY( <span class="keywordtype">double</span> totalAngle READ totalAngle WRITE setTotalAngle )</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  Q_PROPERTY( <span class="keywordtype">int</span> numTurns READ numTurns WRITE setNumTurns )</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  Q_PROPERTY( <a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95">MarkerStyle</a> markerStyle READ markerStyle WRITE setMarkerStyle )</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  Q_PROPERTY( <span class="keywordtype">int</span> markerSize READ markerSize WRITE setMarkerSize )</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  Q_PROPERTY( <span class="keywordtype">int</span> borderWidth READ borderWidth WRITE setBorderWidth )</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be"> 66</a></span>  <span class="keyword">enum</span> <a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be">KnobStyle</a></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  {</div><div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea1dea5fdd408692d0efacc3edf8ca9454"> 69</a></span>  <a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea1dea5fdd408692d0efacc3edf8ca9454">Flat</a>,</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div><div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea998504d08713af8a9af0d2cbe0aaf8df"> 72</a></span>  <a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea998504d08713af8a9af0d2cbe0aaf8df">Raised</a>,</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea599810d6e366e66eaa7f662f1424e7ed"> 78</a></span>  <a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea599810d6e366e66eaa7f662f1424e7ed">Sunken</a>,</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div><div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208beaff19cfc4c98c17198e25d519c45d65ea"> 84</a></span>  Styled</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  };</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95"> 95</a></span>  <span class="keyword">enum</span> <a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95">MarkerStyle</a></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  {</div><div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95af12a242c58b244547abb48ef284246f6"> 98</a></span>  NoMarker = -1,</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a5ccaa93ece2f928a1167b423339826d9"> 101</a></span>  <a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a5ccaa93ece2f928a1167b423339826d9">Tick</a>,</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div><div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a69258df5bb213fe4f7da5362470d8f85"> 104</a></span>  <a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a69258df5bb213fe4f7da5362470d8f85">Triangle</a>,</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div><div class="line"><a name="l00107"></a><span class="lineno"><a class="line" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a298324d95eafb4e99717a35b81b0b704"> 107</a></span>  <a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a298324d95eafb4e99717a35b81b0b704">Dot</a>,</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div><div class="line"><a name="l00113"></a><span class="lineno"><a class="line" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a1bf9be6c73beec7768d62f101d81a851"> 113</a></span>  <a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a1bf9be6c73beec7768d62f101d81a851">Nub</a>,</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a9ea483f1087c1f6b1ac215b5f146c7c3"> 119</a></span>  Notch</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  };</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">explicit</span> <a class="code" href="class_qwt_knob.html">QwtKnob</a>( QWidget* parent = NULL );</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_knob.html">QwtKnob</a>();</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordtype">void</span> setAlignment( Qt::Alignment );</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  Qt::Alignment alignment() <span class="keyword">const</span>;</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordtype">void</span> setKnobWidth( <span class="keywordtype">int</span> );</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">int</span> knobWidth() <span class="keyword">const</span>;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordtype">void</span> setNumTurns( <span class="keywordtype">int</span> );</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordtype">int</span> numTurns() <span class="keyword">const</span>;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordtype">void</span> setTotalAngle ( <span class="keywordtype">double</span> angle );</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordtype">double</span> totalAngle() <span class="keyword">const</span>;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordtype">void</span> setKnobStyle( KnobStyle );</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  KnobStyle knobStyle() <span class="keyword">const</span>;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordtype">void</span> setBorderWidth( <span class="keywordtype">int</span> );</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordtype">int</span> borderWidth() <span class="keyword">const</span>;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordtype">void</span> setMarkerStyle( MarkerStyle );</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  MarkerStyle markerStyle() <span class="keyword">const</span>;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordtype">void</span> setMarkerSize( <span class="keywordtype">int</span> );</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">int</span> markerSize() <span class="keyword">const</span>;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">virtual</span> QSize sizeHint() <span class="keyword">const</span>;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">virtual</span> QSize minimumSizeHint() <span class="keyword">const</span>;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordtype">void</span> setScaleDraw( <a class="code" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</a> * );</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keyword">const</span> <a class="code" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</a> *scaleDraw() <span class="keyword">const</span>;</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <a class="code" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</a> *scaleDraw();</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  QRect knobRect() <span class="keyword">const</span>;</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> paintEvent( QPaintEvent * );</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> changeEvent( QEvent * );</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> drawKnob( QPainter *, <span class="keyword">const</span> QRectF & ) <span class="keyword">const</span>;</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> drawFocusIndicator( QPainter * ) <span class="keyword">const</span>;</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> drawMarker( QPainter *,</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keyword">const</span> QRectF &, <span class="keywordtype">double</span> angle ) <span class="keyword">const</span>;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_abstract_slider.html#af19ab98a4101c2eaa43de2df7ebe4d0d">scrolledTo</a>( <span class="keyword">const</span> QPoint & ) <span class="keyword">const</span>;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_abstract_slider.html#ae674fc01201ec3ae4964838ef539c88e">isScrollPosition</a>( <span class="keyword">const</span> QPoint & ) <span class="keyword">const</span>;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keyword">class </span>PrivateData;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  PrivateData *d_data;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> };</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="class_qwt_round_scale_draw_html"><div class="ttname"><a href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</a></div><div class="ttdoc">A class for drawing round scales. </div><div class="ttdef"><b>Definition:</b> qwt_round_scale_draw.h:30</div></div>
<div class="ttc" id="class_qwt_knob_html_a7254d94e76a74228637931fb75939b95a1bf9be6c73beec7768d62f101d81a851"><div class="ttname"><a href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a1bf9be6c73beec7768d62f101d81a851">QwtKnob::Nub</a></div><div class="ttdef"><b>Definition:</b> qwt_knob.h:113</div></div>
<div class="ttc" id="class_qwt_knob_html_a7254d94e76a74228637931fb75939b95"><div class="ttname"><a href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95">QwtKnob::MarkerStyle</a></div><div class="ttdeci">MarkerStyle</div><div class="ttdoc">Marker type. </div><div class="ttdef"><b>Definition:</b> qwt_knob.h:95</div></div>
<div class="ttc" id="class_qwt_knob_html_a7254d94e76a74228637931fb75939b95a69258df5bb213fe4f7da5362470d8f85"><div class="ttname"><a href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a69258df5bb213fe4f7da5362470d8f85">QwtKnob::Triangle</a></div><div class="ttdoc">Paint a triangle in QPalette::ButtonText color. </div><div class="ttdef"><b>Definition:</b> qwt_knob.h:104</div></div>
<div class="ttc" id="class_qwt_knob_html_addd00357b45752377aec83a3ab7208bea599810d6e366e66eaa7f662f1424e7ed"><div class="ttname"><a href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea599810d6e366e66eaa7f662f1424e7ed">QwtKnob::Sunken</a></div><div class="ttdef"><b>Definition:</b> qwt_knob.h:78</div></div>
<div class="ttc" id="class_qwt_knob_html_addd00357b45752377aec83a3ab7208bea1dea5fdd408692d0efacc3edf8ca9454"><div class="ttname"><a href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea1dea5fdd408692d0efacc3edf8ca9454">QwtKnob::Flat</a></div><div class="ttdoc">Fill the knob with a brush from QPalette::Button. </div><div class="ttdef"><b>Definition:</b> qwt_knob.h:69</div></div>
<div class="ttc" id="class_qwt_knob_html_addd00357b45752377aec83a3ab7208be"><div class="ttname"><a href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be">QwtKnob::KnobStyle</a></div><div class="ttdeci">KnobStyle</div><div class="ttdoc">Style of the knob surface. </div><div class="ttdef"><b>Definition:</b> qwt_knob.h:66</div></div>
<div class="ttc" id="class_qwt_abstract_slider_html_af19ab98a4101c2eaa43de2df7ebe4d0d"><div class="ttname"><a href="class_qwt_abstract_slider.html#af19ab98a4101c2eaa43de2df7ebe4d0d">QwtAbstractSlider::scrolledTo</a></div><div class="ttdeci">virtual double scrolledTo(const QPoint &pos) const =0</div><div class="ttdoc">Determine the value for a new position of the movable part of the slider. </div></div>
<div class="ttc" id="class_qwt_abstract_slider_html"><div class="ttname"><a href="class_qwt_abstract_slider.html">QwtAbstractSlider</a></div><div class="ttdoc">An abstract base class for slider widgets with a scale. </div><div class="ttdef"><b>Definition:</b> qwt_abstract_slider.h:32</div></div>
<div class="ttc" id="class_qwt_knob_html"><div class="ttname"><a href="class_qwt_knob.html">QwtKnob</a></div><div class="ttdoc">The Knob Widget. </div><div class="ttdef"><b>Definition:</b> qwt_knob.h:42</div></div>
<div class="ttc" id="class_qwt_knob_html_a7254d94e76a74228637931fb75939b95a5ccaa93ece2f928a1167b423339826d9"><div class="ttname"><a href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a5ccaa93ece2f928a1167b423339826d9">QwtKnob::Tick</a></div><div class="ttdoc">Paint a single tick in QPalette::ButtonText color. </div><div class="ttdef"><b>Definition:</b> qwt_knob.h:101</div></div>
<div class="ttc" id="class_qwt_abstract_slider_html_ae674fc01201ec3ae4964838ef539c88e"><div class="ttname"><a href="class_qwt_abstract_slider.html#ae674fc01201ec3ae4964838ef539c88e">QwtAbstractSlider::isScrollPosition</a></div><div class="ttdeci">virtual bool isScrollPosition(const QPoint &pos) const =0</div><div class="ttdoc">Determine what to do when the user presses a mouse button. </div></div>
<div class="ttc" id="class_qwt_knob_html_a7254d94e76a74228637931fb75939b95a298324d95eafb4e99717a35b81b0b704"><div class="ttname"><a href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a298324d95eafb4e99717a35b81b0b704">QwtKnob::Dot</a></div><div class="ttdoc">Paint a circle in QPalette::ButtonText color. </div><div class="ttdef"><b>Definition:</b> qwt_knob.h:107</div></div>
<div class="ttc" id="class_qwt_knob_html_addd00357b45752377aec83a3ab7208bea998504d08713af8a9af0d2cbe0aaf8df"><div class="ttname"><a href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea998504d08713af8a9af0d2cbe0aaf8df">QwtKnob::Raised</a></div><div class="ttdoc">Build a gradient from QPalette::Midlight and QPalette::Button. </div><div class="ttdef"><b>Definition:</b> qwt_knob.h:72</div></div>
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