class_qwt_wheel.html

QWT5.01用于Qt开发的二维图形库程序

       
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<p>
Set the internal border width of the wheel. 
<p>
The internal border must not be smaller than 1 and is limited in dependence on the wheel's size. Values outside the allowed range will be clipped.<p>
The internal border defaults to 2. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>w</em>&nbsp;</td><td>border width </td></tr>
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<p>
Definition at line <a class="el" href="qwt__wheel_8cpp-source.html#l00183">183</a> of file <a class="el" href="qwt__wheel_8cpp-source.html">qwt_wheel.cpp</a>.
<p>
References <a class="el" href="qwt__wheel_8cpp-source.html#l00533">layoutWheel()</a>.    </td>
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<a class="anchor" name="811ef1cf04a3d39eb017fcfe808bbd4f"></a><!-- doxytag: member="QwtWheel::setMass" ref="811ef1cf04a3d39eb017fcfe808bbd4f" args="(double val)" --><p>
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          <td class="md" nowrap valign="top">void QwtWheel::setMass           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">double&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>val</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [virtual]</code></td>
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<p>
Set the mass of the wheel. 
<p>
Assigning a mass turns the wheel into a flywheel. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>val</em>&nbsp;</td><td>the wheel's mass </td></tr>
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<p>
Reimplemented from <a class="el" href="class_qwt_abstract_slider.html#305b137fe4dd80cba307fe1b4bd46272">QwtAbstractSlider</a>.
<p>
Definition at line <a class="el" href="qwt__wheel_8cpp-source.html#l00612">612</a> of file <a class="el" href="qwt__wheel_8cpp-source.html">qwt_wheel.cpp</a>.
<p>
References <a class="el" href="qwt__abstract__slider_8cpp-source.html#l00507">QwtAbstractSlider::setMass()</a>.    </td>
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<a class="anchor" name="cae74c8161fd1df728f26253dd1defa8"></a><!-- doxytag: member="QwtWheel::setOrientation" ref="cae74c8161fd1df728f26253dd1defa8" args="(Qt::Orientation)" --><p>
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          <td class="md" nowrap valign="top">void QwtWheel::setOrientation           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">Qt::Orientation&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>o</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [virtual]</code></td>
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<p>
Set the wheel's orientation. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>o</em>&nbsp;</td><td>Orientation. Allowed values are Qt::Horizontal and Qt::Vertical. Defaults to Qt::Horizontal. </td></tr>
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<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#4d2521b9c31ec64b71d8e1771b156d88">QwtAbstractSlider::orientation()</a> </dd></dl>

<p>
Reimplemented from <a class="el" href="class_qwt_abstract_slider.html#6b0fdc50bfbb0a8bb40f0dc6bf493b2c">QwtAbstractSlider</a>.
<p>
Definition at line <a class="el" href="qwt__wheel_8cpp-source.html#l00325">325</a> of file <a class="el" href="qwt__wheel_8cpp-source.html">qwt_wheel.cpp</a>.
<p>
References <a class="el" href="qwt__wheel_8cpp-source.html#l00533">layoutWheel()</a>, <a class="el" href="qwt__abstract__slider_8cpp-source.html#l00117">QwtAbstractSlider::orientation()</a>, and <a class="el" href="qwt__abstract__slider_8cpp-source.html#l00108">QwtAbstractSlider::setOrientation()</a>.    </td>
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<a class="anchor" name="8a970c3b4f776217c284cdce15206530"></a><!-- doxytag: member="QwtWheel::setTickCnt" ref="8a970c3b4f776217c284cdce15206530" args="(int cnt)" --><p>
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          <td class="md" nowrap valign="top">void QwtWheel::setTickCnt           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">int&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>cnt</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
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<p>
Adjust the number of grooves in the wheel's surface. 
<p>
The number of grooves is limited to 6 &lt;= cnt &lt;= 50. Values outside this range will be clipped. The default value is 10. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>cnt</em>&nbsp;</td><td>Number of grooves per 360 degrees </td></tr>
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<p>
Definition at line <a class="el" href="qwt__wheel_8cpp-source.html#l00154">154</a> of file <a class="el" href="qwt__wheel_8cpp-source.html">qwt_wheel.cpp</a>.    </td>
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<a class="anchor" name="3bf43e42e715577f05be9525be1a8e0e"></a><!-- doxytag: member="QwtWheel::setTotalAngle" ref="3bf43e42e715577f05be9525be1a8e0e" args="(double angle)" --><p>
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          <td class="md" nowrap valign="top">void QwtWheel::setTotalAngle           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">double&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>angle</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Set the total angle which the wheel can be turned. 
<p>
One full turn of the wheel corresponds to an angle of 360 degrees. A total angle of n*360 degrees means that the wheel has to be turned n times around its axis to get from the minimum value to the maximum value.<p>
The default setting of the total angle is 360 degrees. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>angle</em>&nbsp;</td><td>total angle in degrees </td></tr>
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<p>
Definition at line <a class="el" href="qwt__wheel_8cpp-source.html#l00304">304</a> of file <a class="el" href="qwt__wheel_8cpp-source.html">qwt_wheel.cpp</a>.    </td>
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<a class="anchor" name="d90821d39ff243db547a1c9b0b0ef545"></a><!-- doxytag: member="QwtWheel::setViewAngle" ref="d90821d39ff243db547a1c9b0b0ef545" args="(double angle)" --><p>
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          <td class="md" nowrap valign="top">void QwtWheel::setViewAngle           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">double&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>angle</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Specify the visible portion of the wheel. 
<p>
You may use this function for fine-tuning the appearance of the wheel. The default value is 175 degrees. The value is limited from 10 to 175 degrees. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>angle</em>&nbsp;</td><td>Visible angle in degrees </td></tr>
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</dl>

<p>
Definition at line <a class="el" href="qwt__wheel_8cpp-source.html#l00359">359</a> of file <a class="el" href="qwt__wheel_8cpp-source.html">qwt_wheel.cpp</a>.    </td>
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<a class="anchor" name="fc5416139e1c962b950a8d48fe465209"></a><!-- doxytag: member="QwtWheel::setWheelWidth" ref="fc5416139e1c962b950a8d48fe465209" args="(int w)" --><p>
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          <td class="md" nowrap valign="top">void QwtWheel::setWheelWidth           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">int&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>w</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Set the width of the wheel. 
<p>
Corresponds to the wheel height for horizontal orientation, and the wheel width for vertical orientation. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>w</em>&nbsp;</td><td>the wheel's width </td></tr>
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</dl>

<p>
Definition at line <a class="el" href="qwt__wheel_8cpp-source.html#l00624">624</a> of file <a class="el" href="qwt__wheel_8cpp-source.html">qwt_wheel.cpp</a>.
<p>
References <a class="el" href="qwt__wheel_8cpp-source.html#l00533">layoutWheel()</a>.    </td>
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<a class="anchor" name="77404d4e604a196bd4e809ec7d9f2076"></a><!-- doxytag: member="QwtWheel::sizeHint" ref="77404d4e604a196bd4e809ec7d9f2076" args="() const " --><p>
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          <td class="md" nowrap valign="top">QSize QwtWheel::sizeHint           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap> const<code> [virtual]</code></td>
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<p>
<dl compact><dt><b>Returns:</b></dt><dd>a size hint </dd></dl>

<p>
Definition at line <a class="el" href="qwt__wheel_8cpp-source.html#l00633">633</a> of file <a class="el" href="qwt__wheel_8cpp-source.html">qwt_wheel.cpp</a>.
<p>
References <a class="el" href="qwt__wheel_8cpp-source.html#l00642">minimumSizeHint()</a>.    </td>
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<a class="anchor" name="0fa3d4f4189f7bb6ee0944cd30060eb5"></a><!-- doxytag: member="QwtWheel::valueChange" ref="0fa3d4f4189f7bb6ee0944cd30060eb5" args="()" --><p>
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          <td class="md" nowrap valign="top">void QwtWheel::valueChange           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [protected, virtual]</code></td>
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<p>
Notify value change. 
<p>

<p>
Reimplemented from <a class="el" href="class_qwt_abstract_slider.html#2f04dc51e4402b51fef3250bcc99dc7f">QwtAbstractSlider</a>.
<p>
Definition at line <a class="el" href="qwt__wheel_8cpp-source.html#l00582">582</a> of file <a class="el" href="qwt__wheel_8cpp-source.html">qwt_wheel.cpp</a>.
<p>
References <a class="el" href="qwt__abstract__slider_8cpp-source.html#l00484">QwtAbstractSlider::valueChange()</a>.    </td>
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<hr size="1"><address style="align: right;"><small>Generated on Mon Feb 26 21:26:19 2007 for Qwt User's Guide by&nbsp;
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