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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_PLOT_RESCALER_H</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#define QWT_PLOT_RESCALER_H 1</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_interval.h"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "qwt_plot.h"</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <qobject.h></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">class </span><a class="code" href="class_qwt_plot.html">QwtPlot</a>;</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">class </span>QResizeEvent;</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="class_qwt_plot_rescaler.html"> 28</a></span> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_plot_rescaler.html">QwtPlotRescaler</a>: <span class="keyword">public</span> QObject</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="class_qwt_plot_rescaler.html#a6a614b832876a7641cb5410ba81d9d6a"> 37</a></span>  <span class="keyword">enum</span> <a class="code" href="class_qwt_plot_rescaler.html#a6a614b832876a7641cb5410ba81d9d6a">RescalePolicy</a></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  {</div><div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="class_qwt_plot_rescaler.html#a6a614b832876a7641cb5410ba81d9d6aab8f9ce10c092bee12de74b05a46b6e9c"> 44</a></span>  <a class="code" href="class_qwt_plot_rescaler.html#a6a614b832876a7641cb5410ba81d9d6aab8f9ce10c092bee12de74b05a46b6e9c">Fixed</a>,</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="class_qwt_plot_rescaler.html#a6a614b832876a7641cb5410ba81d9d6aac0b9db1ea3c5666792c2a9813ca5d7e1"> 54</a></span>  <a class="code" href="class_qwt_plot_rescaler.html#a6a614b832876a7641cb5410ba81d9d6aac0b9db1ea3c5666792c2a9813ca5d7e1">Expanding</a>,</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="class_qwt_plot_rescaler.html#a6a614b832876a7641cb5410ba81d9d6aa30a43b11d9df23f66110b65d1e249db1"> 60</a></span>  Fitting</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  };</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="class_qwt_plot_rescaler.html#a1c314e9513cef076a79381111aa67585"> 67</a></span>  <span class="keyword">enum</span> <a class="code" href="class_qwt_plot_rescaler.html#a1c314e9513cef076a79381111aa67585">ExpandingDirection</a></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  {</div><div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="class_qwt_plot_rescaler.html#a1c314e9513cef076a79381111aa67585a10adc202ca84a06179b905db6802668c"> 70</a></span>  <a class="code" href="class_qwt_plot_rescaler.html#a1c314e9513cef076a79381111aa67585a10adc202ca84a06179b905db6802668c">ExpandUp</a>,</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="class_qwt_plot_rescaler.html#a1c314e9513cef076a79381111aa67585a856d9a1fe75ed6398a1b3c4b60f3fbfd"> 73</a></span>  <a class="code" href="class_qwt_plot_rescaler.html#a1c314e9513cef076a79381111aa67585a856d9a1fe75ed6398a1b3c4b60f3fbfd">ExpandDown</a>,</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="class_qwt_plot_rescaler.html#a1c314e9513cef076a79381111aa67585a3dfb8208dfb62200761e4221763db033"> 76</a></span>  ExpandBoth</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  };</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">explicit</span> <a class="code" href="class_qwt_plot_rescaler.html">QwtPlotRescaler</a>( QWidget *canvas,</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordtype">int</span> referenceAxis = <a class="code" href="class_qwt_plot.html#a81df699dcf9dde0752c0726b5f31e271ad5566960e78f2473c1a1e853def4c4ac">QwtPlot::xBottom</a>,</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  RescalePolicy = Expanding );</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_plot_rescaler.html">QwtPlotRescaler</a>();</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">void</span> setEnabled( <span class="keywordtype">bool</span> );</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordtype">bool</span> isEnabled() <span class="keyword">const</span>;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordtype">void</span> setRescalePolicy( RescalePolicy );</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  RescalePolicy rescalePolicy() <span class="keyword">const</span>;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordtype">void</span> setExpandingDirection( ExpandingDirection );</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordtype">void</span> setExpandingDirection( <span class="keywordtype">int</span> axis, ExpandingDirection );</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  ExpandingDirection expandingDirection( <span class="keywordtype">int</span> axis ) <span class="keyword">const</span>;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordtype">void</span> setReferenceAxis( <span class="keywordtype">int</span> axis );</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordtype">int</span> referenceAxis() <span class="keyword">const</span>;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordtype">void</span> setAspectRatio( <span class="keywordtype">double</span> ratio );</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordtype">void</span> setAspectRatio( <span class="keywordtype">int</span> axis, <span class="keywordtype">double</span> ratio );</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordtype">double</span> aspectRatio( <span class="keywordtype">int</span> axis ) <span class="keyword">const</span>;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordtype">void</span> setIntervalHint( <span class="keywordtype">int</span> axis, <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a>& );</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="class_qwt_interval.html">QwtInterval</a> intervalHint( <span class="keywordtype">int</span> axis ) <span class="keyword">const</span>;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  QWidget *canvas();</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">const</span> QWidget *canvas() <span class="keyword">const</span>;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="class_qwt_plot.html">QwtPlot</a> *plot();</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keyword">const</span> <a class="code" href="class_qwt_plot.html">QwtPlot</a> *plot() <span class="keyword">const</span>;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> eventFilter( QObject *, QEvent * );</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordtype">void</span> rescale() <span class="keyword">const</span>;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> canvasResizeEvent( QResizeEvent * );</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> rescale( <span class="keyword">const</span> QSize &oldSize, <span class="keyword">const</span> QSize &newSize ) <span class="keyword">const</span>;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keyword">virtual</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a> expandScale(</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">int</span> axis, <span class="keyword">const</span> QSize &oldSize, <span class="keyword">const</span> QSize &newSize ) <span class="keyword">const</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">virtual</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a> syncScale(</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">int</span> axis, <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a>& reference,</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keyword">const</span> QSize &size ) <span class="keyword">const</span>;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> updateScales(</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <a class="code" href="class_qwt_interval.html">QwtInterval</a> intervals[<a class="code" href="class_qwt_plot.html#a81df699dcf9dde0752c0726b5f31e271aea62036dfd48ee0f9450718592614892">QwtPlot::axisCnt</a>] ) <span class="keyword">const</span>;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  Qt::Orientation orientation( <span class="keywordtype">int</span> axis ) <span class="keyword">const</span>;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="class_qwt_interval.html">QwtInterval</a> interval( <span class="keywordtype">int</span> axis ) <span class="keyword">const</span>;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="class_qwt_interval.html">QwtInterval</a> expandInterval( <span class="keyword">const</span> <a class="code" href="class_qwt_interval.html">QwtInterval</a> &,</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordtype">double</span> width, ExpandingDirection ) <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="keyword">private</span>:</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordtype">double</span> pixelDist( <span class="keywordtype">int</span> axis, <span class="keyword">const</span> QSize & ) <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="keyword">class </span>AxisData;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keyword">class </span>PrivateData;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  PrivateData *d_data;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> };</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="class_qwt_plot_rescaler_html_a1c314e9513cef076a79381111aa67585a10adc202ca84a06179b905db6802668c"><div class="ttname"><a href="class_qwt_plot_rescaler.html#a1c314e9513cef076a79381111aa67585a10adc202ca84a06179b905db6802668c">QwtPlotRescaler::ExpandUp</a></div><div class="ttdoc">The upper limit of the scale is adjusted. </div><div class="ttdef"><b>Definition:</b> qwt_plot_rescaler.h:70</div></div>
<div class="ttc" id="class_qwt_plot_html_a81df699dcf9dde0752c0726b5f31e271aea62036dfd48ee0f9450718592614892"><div class="ttname"><a href="class_qwt_plot.html#a81df699dcf9dde0752c0726b5f31e271aea62036dfd48ee0f9450718592614892">QwtPlot::axisCnt</a></div><div class="ttdoc">Number of axes. </div><div class="ttdef"><b>Definition:</b> qwt_plot.h:109</div></div>
<div class="ttc" id="class_qwt_plot_rescaler_html_a6a614b832876a7641cb5410ba81d9d6aac0b9db1ea3c5666792c2a9813ca5d7e1"><div class="ttname"><a href="class_qwt_plot_rescaler.html#a6a614b832876a7641cb5410ba81d9d6aac0b9db1ea3c5666792c2a9813ca5d7e1">QwtPlotRescaler::Expanding</a></div><div class="ttdef"><b>Definition:</b> qwt_plot_rescaler.h:54</div></div>
<div class="ttc" id="class_qwt_plot_rescaler_html_a6a614b832876a7641cb5410ba81d9d6aab8f9ce10c092bee12de74b05a46b6e9c"><div class="ttname"><a href="class_qwt_plot_rescaler.html#a6a614b832876a7641cb5410ba81d9d6aab8f9ce10c092bee12de74b05a46b6e9c">QwtPlotRescaler::Fixed</a></div><div class="ttdef"><b>Definition:</b> qwt_plot_rescaler.h:44</div></div>
<div class="ttc" id="class_qwt_plot_html_a81df699dcf9dde0752c0726b5f31e271ad5566960e78f2473c1a1e853def4c4ac"><div class="ttname"><a href="class_qwt_plot.html#a81df699dcf9dde0752c0726b5f31e271ad5566960e78f2473c1a1e853def4c4ac">QwtPlot::xBottom</a></div><div class="ttdoc">X axis below the canvas. </div><div class="ttdef"><b>Definition:</b> qwt_plot.h:103</div></div>
<div class="ttc" id="class_qwt_plot_rescaler_html_a6a614b832876a7641cb5410ba81d9d6a"><div class="ttname"><a href="class_qwt_plot_rescaler.html#a6a614b832876a7641cb5410ba81d9d6a">QwtPlotRescaler::RescalePolicy</a></div><div class="ttdeci">RescalePolicy</div><div class="ttdef"><b>Definition:</b> qwt_plot_rescaler.h:37</div></div>
<div class="ttc" id="class_qwt_plot_rescaler_html_a1c314e9513cef076a79381111aa67585"><div class="ttname"><a href="class_qwt_plot_rescaler.html#a1c314e9513cef076a79381111aa67585">QwtPlotRescaler::ExpandingDirection</a></div><div class="ttdeci">ExpandingDirection</div><div class="ttdef"><b>Definition:</b> qwt_plot_rescaler.h:67</div></div>
<div class="ttc" id="class_qwt_plot_rescaler_html"><div class="ttname"><a href="class_qwt_plot_rescaler.html">QwtPlotRescaler</a></div><div class="ttdoc">QwtPlotRescaler takes care of fixed aspect ratios for plot scales. </div><div class="ttdef"><b>Definition:</b> qwt_plot_rescaler.h:28</div></div>
<div class="ttc" id="class_qwt_plot_rescaler_html_a1c314e9513cef076a79381111aa67585a856d9a1fe75ed6398a1b3c4b60f3fbfd"><div class="ttname"><a href="class_qwt_plot_rescaler.html#a1c314e9513cef076a79381111aa67585a856d9a1fe75ed6398a1b3c4b60f3fbfd">QwtPlotRescaler::ExpandDown</a></div><div class="ttdoc">The lower limit of the scale is adjusted. </div><div class="ttdef"><b>Definition:</b> qwt_plot_rescaler.h:73</div></div>
<div class="ttc" id="class_qwt_interval_html"><div class="ttname"><a href="class_qwt_interval.html">QwtInterval</a></div><div class="ttdoc">A class representing an interval. </div><div class="ttdef"><b>Definition:</b> qwt_interval.h:26</div></div>
<div class="ttc" id="class_qwt_plot_html"><div class="ttname"><a href="class_qwt_plot.html">QwtPlot</a></div><div class="ttdoc">A 2-D plotting widget. </div><div class="ttdef"><b>Definition:</b> qwt_plot.h:75</div></div>
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