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110 lines
4.9 KiB
110 lines
4.9 KiB
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/canvas/qcanvas.cpp:4389 -->
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<html>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>TQCanvasLine Class</title>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQCanvasLine Class Reference<br><small>[<a href="canvas.html">canvas module</a>]</small></h1>
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<p>The TQCanvasLine class provides a line on a TQCanvas.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qcanvas-h.html">ntqcanvas.h</a>></tt>
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<p>Inherits <a href="qcanvaspolygonalitem.html">TQCanvasPolygonalItem</a>.
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<p><a href="qcanvasline-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#TQCanvasLine"><b>TQCanvasLine</b></a> ( TQCanvas * canvas )</li>
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<li class=fn><a href="#~TQCanvasLine"><b>~TQCanvasLine</b></a> ()</li>
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<li class=fn>void <a href="#setPoints"><b>setPoints</b></a> ( int xa, int ya, int xb, int yb )</li>
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<li class=fn>TQPoint <a href="#startPoint"><b>startPoint</b></a> () const</li>
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<li class=fn>TQPoint <a href="#endPoint"><b>endPoint</b></a> () const</li>
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<li class=fn>virtual int <a href="#rtti"><b>rtti</b></a> () const</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The TQCanvasLine class provides a line on a <a href="ntqcanvas.html">TQCanvas</a>.
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<p>
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<p> The line inherits functionality from <a href="qcanvaspolygonalitem.html">TQCanvasPolygonalItem</a>, for
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example the <a href="qcanvaspolygonalitem.html#setPen">setPen</a>() function. The start and end points of the
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line are set with <a href="#setPoints">setPoints</a>().
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<p> Like any other canvas item lines can be moved with
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<a href="qcanvasitem.html#move">TQCanvasItem::move</a>() and <a href="qcanvasitem.html#moveBy">TQCanvasItem::moveBy</a>(), or by setting
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coordinates with <a href="qcanvasitem.html#setX">TQCanvasItem::setX</a>(), <a href="qcanvasitem.html#setY">TQCanvasItem::setY</a>() and
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<a href="qcanvasitem.html#setZ">TQCanvasItem::setZ</a>().
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<p>See also <a href="graphics.html">Graphics Classes</a> and <a href="images.html">Image Processing Classes</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQCanvasLine"></a>TQCanvasLine::TQCanvasLine ( <a href="ntqcanvas.html">TQCanvas</a> * canvas )
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</h3>
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Constructs a line from (0,0) to (0,0) on <em>canvas</em>.
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<p> <p>See also <a href="#setPoints">setPoints</a>().
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<h3 class=fn><a name="~TQCanvasLine"></a>TQCanvasLine::~TQCanvasLine ()
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</h3>
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Destroys the line.
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<h3 class=fn><a href="ntqpoint.html">TQPoint</a> <a name="endPoint"></a>TQCanvasLine::endPoint () const
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</h3>
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<p> Returns the end point of the line.
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<p> <p>See also <a href="#setPoints">setPoints</a>() and <a href="#startPoint">startPoint</a>().
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<h3 class=fn>int <a name="rtti"></a>TQCanvasLine::rtti () const<tt> [virtual]</tt>
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</h3>
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Returns 7 (TQCanvasItem::Rtti_Line).
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<p> <p>See also <a href="qcanvasitem.html#rtti">TQCanvasItem::rtti</a>().
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<p>Reimplemented from <a href="qcanvaspolygonalitem.html#rtti">TQCanvasPolygonalItem</a>.
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<h3 class=fn>void <a name="setPoints"></a>TQCanvasLine::setPoints ( int xa, int ya, int xb, int yb )
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</h3>
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Sets the line's start point to (<em>xa</em>, <em>ya</em>) and its end point to
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(<em>xb</em>, <em>yb</em>).
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<p>Example: <a href="canvas-example.html#x2922">canvas/canvas.cpp</a>.
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<h3 class=fn><a href="ntqpoint.html">TQPoint</a> <a name="startPoint"></a>TQCanvasLine::startPoint () const
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</h3>
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<p> Returns the start point of the line.
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<p> <p>See also <a href="#setPoints">setPoints</a>() and <a href="#endPoint">endPoint</a>().
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