Sophie

Sophie

distrib > Mageia > 6 > x86_64 > media > core-updates > by-pkgid > 19952c5e751bf7e3108c3c59625b0f35 > files > 128

qtcharts5-doc-5.9.4-1.mga6.noarch.rpm

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- qchartview.cpp -->
  <title>QChartView Class | Qt Charts 5.9</title>
  <link rel="stylesheet" type="text/css" href="style/offline-simple.css" />
  <script type="text/javascript">
    document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css");
    // loading style sheet breaks anchors that were jumped to before
    // so force jumping to anchor again
    setTimeout(function() {
        var anchor = location.hash;
        // need to jump to different anchor first (e.g. none)
        location.hash = "#";
        setTimeout(function() {
            location.hash = anchor;
        }, 0);
    }, 0);
  </script>
</head>
<body>
<div class="header" id="qtdocheader">
  <div class="main">
    <div class="main-rounded">
      <div class="navigationbar">
        <table><tr>
<td >Qt 5.9</td><td ><a href="qtcharts-index.html">Qt Charts</a></td><td ><a href="qt-charts-module.html">C++ Classes</a></td><td >QChartView</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
        </tr></table>
      </div>
    </div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="sidebar">
<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="#protected-functions">Protected Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
</ul>
</div>
<div class="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">QChartView Class</h1>
<!-- $$$QChartView-brief -->
<p>The <a href="qchartview.html">QChartView</a> is a standalone widget that can display charts. <a href="#details">More...</a></p>
<!-- @@@QChartView -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign">   <span class="preprocessor">#include &lt;QChartView&gt;</span>
</td></tr></table></div><ul>
<li><a href="qchartview-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-types"></a>
<h2 id="public-types">Public Types</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qchartview.html#RubberBand-enum">RubberBand</a></b> { NoRubberBand, VerticalRubberBand, HorizontalRubberBand, RectangleRubberBand }</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> flags </td><td class="memItemRight bottomAlign"><b><a href="qchartview.html#RubberBand-enum">RubberBands</a></b></td></tr>
</table></div>
<a name="public-functions"></a>
<h2 id="public-functions">Public Functions</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qchartview.html#QChartView">QChartView</a></b>(QWidget *<i>parent</i> = Q_NULLPTR)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qchartview.html#QChartView-1">QChartView</a></b>(QChart *<i>chart</i>, QWidget *<i>parent</i> = Q_NULLPTR)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qchartview.html#dtor.QChartView">~QChartView</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QChart *</td><td class="memItemRight bottomAlign"><b><a href="qchartview.html#chart">chart</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> RubberBands </td><td class="memItemRight bottomAlign"><b><a href="qchartview.html#rubberBand">rubberBand</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qchartview.html#setChart">setChart</a></b>(QChart *<i>chart</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qchartview.html#setRubberBand">setRubberBand</a></b>(const RubberBands &amp;<i>rubberBand</i>)</td></tr>
</table></div>
<a name="protected-functions"></a>
<h2 id="protected-functions">Protected Functions</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qchartview.html#mouseMoveEvent">mouseMoveEvent</a></b>(QMouseEvent *<i>event</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qchartview.html#mousePressEvent">mousePressEvent</a></b>(QMouseEvent *<i>event</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qchartview.html#mouseReleaseEvent">mouseReleaseEvent</a></b>(QMouseEvent *<i>event</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qchartview.html#resizeEvent">resizeEvent</a></b>(QResizeEvent *<i>event</i>)</td></tr>
</table></div>
<a name="details"></a>
<!-- $$$QChartView-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qchartview.html">QChartView</a> is a standalone widget that can display charts.</p>
<p>A chart view does not require a QGraphicsScene object to work. To display a chart in an existing QGraphicsScene, the <a href="qchart.html">QChart</a> or <a href="qpolarchart.html">QPolarChart</a> class should be used instead.</p>
</div>
<p><b>See also </b><a href="qchart.html">QChart</a> and <a href="qpolarchart.html">QPolarChart</a>.</p>
<!-- @@@QChartView -->
<div class="types">
<h2>Member Type Documentation</h2>
<!-- $$$RubberBand$$$NoRubberBand$$$VerticalRubberBand$$$HorizontalRubberBand$$$RectangleRubberBand -->
<h3 class="flags" id="RubberBand-enum"><a name="RubberBand-enum"></a>enum QChartView::<span class="name">RubberBand</span><br/>flags QChartView::<span class="name">RubberBands</span></h3>
<p>This enum describes the different types of rubber band effects that can be applied to the rectangular zooming area.</p>
<div class="table"><table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><code>QChartView::NoRubberBand</code></td><td class="topAlign tblval"><code>0x0</code></td><td class="topAlign">No zooming area is specified, and therefore zooming is not enabled.</td></tr>
<tr><td class="topAlign"><code>QChartView::VerticalRubberBand</code></td><td class="topAlign tblval"><code>0x1</code></td><td class="topAlign">The rubber band is locked to the size of the chart horizontally and can be pulled vertically to specify the zooming area.</td></tr>
<tr><td class="topAlign"><code>QChartView::HorizontalRubberBand</code></td><td class="topAlign tblval"><code>0x2</code></td><td class="topAlign">The rubber band is locked to the size of the chart vertically and can be pulled horizontally to specify the zooming area.</td></tr>
<tr><td class="topAlign"><code>QChartView::RectangleRubberBand</code></td><td class="topAlign tblval"><code>0x3</code></td><td class="topAlign">The rubber band is fixed to the point that was clicked and can be pulled both vertically and horizontally.</td></tr>
</table></div>
<p>The RubberBands type is a typedef for <a href="">QFlags</a>&lt;RubberBand&gt;. It stores an OR combination of RubberBand values.</p>
<!-- @@@RubberBand -->
</div>
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QChartView[overload1]$$$QChartViewQWidget* -->
<h3 class="fn" id="QChartView"><a name="QChartView"></a>QChartView::<span class="name">QChartView</span>(<span class="type">QWidget</span> *<i>parent</i> = Q_NULLPTR)</h3>
<p>Constructs a chart view object with the parent <i>parent</i>.</p>
<!-- @@@QChartView -->
<!-- $$$QChartView$$$QChartViewQChart*QWidget* -->
<h3 class="fn" id="QChartView-1"><a name="QChartView-1"></a>QChartView::<span class="name">QChartView</span>(<span class="type"><a href="qchart.html">QChart</a></span> *<i>chart</i>, <span class="type">QWidget</span> *<i>parent</i> = Q_NULLPTR)</h3>
<p>Constructs a chart view object with the parent <i>parent</i> to display the chart <i>chart</i>. The ownership of the chart is passed to the chart view.</p>
<!-- @@@QChartView -->
<!-- $$$~QChartView[overload1]$$$~QChartView -->
<h3 class="fn" id="dtor.QChartView"><a name="dtor.QChartView"></a>QChartView::<span class="name">~QChartView</span>()</h3>
<p>Deletes the chart view object and the associated chart.</p>
<!-- @@@~QChartView -->
<!-- $$$chart[overload1]$$$chart -->
<h3 class="fn" id="chart"><a name="chart"></a><span class="type"><a href="qchart.html">QChart</a></span> *QChartView::<span class="name">chart</span>() const</h3>
<p>Returns the pointer to the associated chart.</p>
<p><b>See also </b><a href="qchartview.html#setChart">setChart</a>().</p>
<!-- @@@chart -->
<!-- $$$mouseMoveEvent[overload1]$$$mouseMoveEventQMouseEvent* -->
<h3 class="fn" id="mouseMoveEvent"><a name="mouseMoveEvent"></a><code>[protected] </code><span class="type">void</span> QChartView::<span class="name">mouseMoveEvent</span>(<span class="type">QMouseEvent</span> *<i>event</i>)</h3>
<p>If the rubber band rectangle is displayed in the press event specified by <i>event</i>, the event data is used to update the rubber band geometry. Otherwise, the default QGraphicsView::mouseMoveEvent() implementation is called.</p>
<!-- @@@mouseMoveEvent -->
<!-- $$$mousePressEvent[overload1]$$$mousePressEventQMouseEvent* -->
<h3 class="fn" id="mousePressEvent"><a name="mousePressEvent"></a><code>[protected] </code><span class="type">void</span> QChartView::<span class="name">mousePressEvent</span>(<span class="type">QMouseEvent</span> *<i>event</i>)</h3>
<p>If the left mouse button is pressed and the rubber band is enabled, the event <i>event</i> is accepted and the rubber band is displayed on the screen. This enables the user to select the zoom area.</p>
<p>If some other mouse button is pressed or the rubber band is disabled, the event is passed to QGraphicsView::mousePressEvent().</p>
<!-- @@@mousePressEvent -->
<!-- $$$mouseReleaseEvent[overload1]$$$mouseReleaseEventQMouseEvent* -->
<h3 class="fn" id="mouseReleaseEvent"><a name="mouseReleaseEvent"></a><code>[protected] </code><span class="type">void</span> QChartView::<span class="name">mouseReleaseEvent</span>(<span class="type">QMouseEvent</span> *<i>event</i>)</h3>
<p>If the left mouse button is released and the rubber band is enabled, the event <i>event</i> is accepted and the view is zoomed into the rectangle specified by the rubber band. If releasing the right mouse button triggered the event, the view is zoomed out.</p>
<!-- @@@mouseReleaseEvent -->
<!-- $$$resizeEvent[overload1]$$$resizeEventQResizeEvent* -->
<h3 class="fn" id="resizeEvent"><a name="resizeEvent"></a><code>[protected] </code><span class="type">void</span> QChartView::<span class="name">resizeEvent</span>(<span class="type">QResizeEvent</span> *<i>event</i>)</h3>
<p>Resizes and updates the chart area using the data specified by <i>event</i>.</p>
<!-- @@@resizeEvent -->
<!-- $$$rubberBand[overload1]$$$rubberBand -->
<h3 class="fn" id="rubberBand"><a name="rubberBand"></a><span class="type"><a href="qchartview.html#RubberBand-enum">RubberBands</a></span> QChartView::<span class="name">rubberBand</span>() const</h3>
<p>Returns the rubber band flags that are currently being used by the chart view.</p>
<p><b>See also </b><a href="qchartview.html#setRubberBand">setRubberBand</a>().</p>
<!-- @@@rubberBand -->
<!-- $$$setChart[overload1]$$$setChartQChart* -->
<h3 class="fn" id="setChart"><a name="setChart"></a><span class="type">void</span> QChartView::<span class="name">setChart</span>(<span class="type"><a href="qchart.html">QChart</a></span> *<i>chart</i>)</h3>
<p>Sets the current chart to <i>chart</i>. The ownership of the new chart is passed to the chart view and the ownership of the previous chart is released.</p>
<p>To avoid memory leaks, the previous chart must be deleted.</p>
<p><b>See also </b><a href="qchartview.html#chart">chart</a>().</p>
<!-- @@@setChart -->
<!-- $$$setRubberBand[overload1]$$$setRubberBandconstRubberBands& -->
<h3 class="fn" id="setRubberBand"><a name="setRubberBand"></a><span class="type">void</span> QChartView::<span class="name">setRubberBand</span>(const <span class="type"><a href="qchartview.html#RubberBand-enum">RubberBands</a></span> &amp;<i>rubberBand</i>)</h3>
<p>Sets the rubber band flags to <i>rubberBand</i>. The selected flags determine the way zooming is performed.</p>
<p><b>Note: </b>Rubber band zooming is not supported for polar charts.</p><p><b>See also </b><a href="qchartview.html#rubberBand">rubberBand</a>().</p>
<!-- @@@setRubberBand -->
</div>
        </div>
       </div>
   </div>
   </div>
</div>
<div class="footer">
   <p>
   <acronym title="Copyright">&copy;</acronym> 2017 The Qt Company Ltd.
   Documentation contributions included herein are the copyrights of
   their respective owners.<br>    The documentation provided herein is licensed under the terms of the    <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation    License version 1.3</a> as published by the Free Software Foundation.<br>    Qt and respective logos are trademarks of The Qt Company Ltd.     in Finland and/or other countries worldwide. All other trademarks are property
   of their respective owners. </p>
</div>
</body>
</html>