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Breadcrumbs go here --> <li><a href="modules.html">Modules</a></li> <li>Qt3SupportLight</li> <li>Q3PointArray</li> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <h1 class="title">Q3PointArray Class Reference</h1> <pre class="cpp"> <span class="preprocessor">#include <Q3PointArray></span></pre><p><b>This class is part of the Qt 3 support library.</b> It is provided to keep old source code working. We strongly advise against using it in new code. See <a href="porting4.html#qpointarray">Porting to Qt 4</a> for more information.</p> <p><b>Inherits: </b><a href="qpolygon.html">QPolygon</a>.</p> <ul> <li><a href="q3pointarray-members.html">List of all members, including inherited members</a></li> </ul> <a name="public-functions"></a> <h2>Public Functions</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3pointarray.html#Q3PointArray">Q3PointArray</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3pointarray.html#Q3PointArray-2">Q3PointArray</a></b> ( const QRect & <i>r</i>, bool <i>closed</i> = false )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3pointarray.html#Q3PointArray-3">Q3PointArray</a></b> ( const QPolygon & <i>other</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> Q3PointArray </td><td class="memItemRight bottomAlign"><b><a href="q3pointarray.html#copy">copy</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> Q3PointArray </td><td class="memItemRight bottomAlign"><b><a href="q3pointarray.html#cubicBezier">cubicBezier</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="q3pointarray.html#isNull">isNull</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="q3pointarray.html#makeArc">makeArc</a></b> ( int <i>x</i>, int <i>y</i>, int <i>w</i>, int <i>h</i>, int <i>a1</i>, int <i>a2</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="q3pointarray.html#makeArc-2">makeArc</a></b> ( int <i>x</i>, int <i>y</i>, int <i>w</i>, int <i>h</i>, int <i>a1</i>, int <i>a2</i>, const QMatrix & <i>xf</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="q3pointarray.html#makeEllipse">makeEllipse</a></b> ( int <i>x</i>, int <i>y</i>, int <i>w</i>, int <i>h</i> )</td></tr> </table> <ul> <li class="fn">19 public functions inherited from <a href="qpolygon.html#public-functions">QPolygon</a></li> <li class="fn">65 public functions inherited from <a href="qvector.html#public-functions">QVector</a></li> </ul> <h3>Additional Inherited Members</h3> <ul> <li class="fn">2 static public members inherited from <a href="qvector.html#static-public-members">QVector</a></li> </ul> <a name="details"></a> <!-- $$$Q3PointArray-description --> <div class="descr"> <h2>Detailed Description</h2> <p>The Q3PointArray class provides an array of points.</p> <p>Q3PointArray is a <a href="qpolygon.html">QPolygon</a> subclass that provides functions to make it more source compatible with the <tt>QPointArray</tt> class in Qt 3.</p> <p>In Qt 4, we recommend that you use <a href="qpainterpath.html">QPainterPath</a> for representing arcs, ellipses, and Bezier curves, rather than <a href="qpolygon.html">QPolygon</a>.</p> </div> <!-- @@@Q3PointArray --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$Q3PointArray[overload1]$$$Q3PointArray --> <h3 class="fn"><a name="Q3PointArray"></a>Q3PointArray::<span class="name">Q3PointArray</span> ()</h3> <p>Constructs an empty <a href="q3pointarray.html" class="compat">Q3PointArray</a>.</p> <!-- @@@Q3PointArray --> <!-- $$$Q3PointArray$$$Q3PointArrayconstQRect&bool --> <h3 class="fn"><a name="Q3PointArray-2"></a>Q3PointArray::<span class="name">Q3PointArray</span> ( const <span class="type"><a href="qrect.html">QRect</a></span> & <i>r</i>, <span class="type">bool</span> <i>closed</i> = false )</h3> <p>Constructs a point array from the rectangle <i>r</i>.</p> <p>If <i>closed</i> is false, then the point array just contains the following four points of the rectangle ordered clockwise. The bottom-right point is located at (r.x() + r.width(), r.y() + r.height()).</p> <!-- @@@Q3PointArray --> <!-- $$$Q3PointArray$$$Q3PointArrayconstQPolygon& --> <h3 class="fn"><a name="Q3PointArray-3"></a>Q3PointArray::<span class="name">Q3PointArray</span> ( const <span class="type"><a href="qpolygon.html">QPolygon</a></span> & <i>other</i> )</h3> <p>Constructs a copy of <i>other</i>.</p> <!-- @@@Q3PointArray --> <!-- $$$copy[overload1]$$$copy --> <h3 class="fn"><a name="copy"></a><span class="type">Q3PointArray</span> Q3PointArray::<span class="name">copy</span> () const</h3> <p>Returns a copy of this <a href="q3pointarray.html" class="compat">Q3PointArray</a>.</p> <!-- @@@copy --> <!-- $$$cubicBezier[overload1]$$$cubicBezier --> <h3 class="fn"><a name="cubicBezier"></a><span class="type">Q3PointArray</span> Q3PointArray::<span class="name">cubicBezier</span> () const</h3> <p>Returns the Bezier points for the four control points in this array.</p> <!-- @@@cubicBezier --> <!-- $$$isNull[overload1]$$$isNull --> <h3 class="fn"><a name="isNull"></a><span class="type">bool</span> Q3PointArray::<span class="name">isNull</span> ()</h3> <p>Returns <a href="qvector.html#isEmpty">isEmpty</a>(). Use <a href="qvector.html#isEmpty">isEmpty</a>() instead.</p> <!-- @@@isNull --> <!-- $$$makeArc[overload1]$$$makeArcintintintintintint --> <h3 class="fn"><a name="makeArc"></a><span class="type">void</span> Q3PointArray::<span class="name">makeArc</span> ( <span class="type">int</span> <i>x</i>, <span class="type">int</span> <i>y</i>, <span class="type">int</span> <i>w</i>, <span class="type">int</span> <i>h</i>, <span class="type">int</span> <i>a1</i>, <span class="type">int</span> <i>a2</i> )</h3> <p>Sets the points of the array to those describing an arc of an ellipse with size, width <i>w</i> by height <i>h</i>, and position (<i>x</i>, <i>y</i>), starting from angle <i>a1</i> and spanning by angle <i>a2</i>. The resulting array has sufficient resolution for pixel accuracy (see the overloaded function which takes an additional <a href="qmatrix.html" class="obsolete">QMatrix</a> parameter).</p> <p>Angles are specified in 16ths of a degree, i.e. a full circle equals 5760 (16*360). Positive values mean counter-clockwise, whereas negative values mean the clockwise direction. Zero degrees is at the 3 o'clock position.</p> <!-- @@@makeArc --> <!-- $$$makeArc$$$makeArcintintintintintintconstQMatrix& --> <h3 class="fn"><a name="makeArc-2"></a><span class="type">void</span> Q3PointArray::<span class="name">makeArc</span> ( <span class="type">int</span> <i>x</i>, <span class="type">int</span> <i>y</i>, <span class="type">int</span> <i>w</i>, <span class="type">int</span> <i>h</i>, <span class="type">int</span> <i>a1</i>, <span class="type">int</span> <i>a2</i>, const <span class="type"><a href="qmatrix.html">QMatrix</a></span> & <i>xf</i> )</h3> <p>This is an overloaded function.</p> <p>Sets the points of the array to those describing an arc of an ellipse with width <i>w</i> and height <i>h</i> and position (<i>x</i>, <i>y</i>), starting from angle <i>a1</i>, and spanning angle by <i>a2</i>, and transformed by the matrix <i>xf</i>. The resulting array has sufficient resolution for pixel accuracy.</p> <p>Angles are specified in 16ths of a degree, i.e. a full circle equals 5760 (16 * 360). Positive values mean counter-clockwise, whereas negative values mean the clockwise direction. Zero degrees is at the 3 o'clock position.</p> <!-- @@@makeArc --> <!-- $$$makeEllipse[overload1]$$$makeEllipseintintintint --> <h3 class="fn"><a name="makeEllipse"></a><span class="type">void</span> Q3PointArray::<span class="name">makeEllipse</span> ( <span class="type">int</span> <i>x</i>, <span class="type">int</span> <i>y</i>, <span class="type">int</span> <i>w</i>, <span class="type">int</span> <i>h</i> )</h3> <p>Sets the points of the array to those describing an ellipse with size, width <i>w</i> by height <i>h</i>, and position (<i>x</i>, <i>y</i>).</p> <p>The returned array has sufficient resolution for use as pixels.</p> <!-- @@@makeEllipse --> </div> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its subsidiaries. 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