You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
120 lines
6.5 KiB
120 lines
6.5 KiB
13 years ago
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
||
|
|
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/kernel/qevent.cpp:1251 -->
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
||
|
|
<title>TQPaintEvent Class</title>
|
||
|
|
<style type="text/css"><!--
|
||
|
|
fn { margin-left: 1cm; text-indent: -1cm; }
|
||
|
|
a:link { color: #004faf; text-decoration: none }
|
||
|
|
a:visited { color: #672967; text-decoration: none }
|
||
|
|
body { background: #ffffff; color: black; }
|
||
|
|
--></style>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
|
||
|
|
<table border="0" cellpadding="0" cellspacing="0" width="100%">
|
||
|
|
<tr bgcolor="#E5E5E5">
|
||
|
|
<td valign=center>
|
||
|
|
<a href="index.html">
|
||
|
|
<font color="#004faf">Home</font></a>
|
||
|
|
| <a href="classes.html">
|
||
|
|
<font color="#004faf">All Classes</font></a>
|
||
|
|
| <a href="mainclasses.html">
|
||
|
|
<font color="#004faf">Main Classes</font></a>
|
||
|
|
| <a href="annotated.html">
|
||
|
|
<font color="#004faf">Annotated</font></a>
|
||
|
|
| <a href="groups.html">
|
||
|
|
<font color="#004faf">Grouped Classes</font></a>
|
||
|
|
| <a href="functions.html">
|
||
|
|
<font color="#004faf">Functions</font></a>
|
||
|
|
</td>
|
||
|
|
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQPaintEvent Class Reference</h1>
|
||
|
|
|
||
|
|
<p>The TQPaintEvent class contains event parameters for paint events.
|
||
|
|
<a href="#details">More...</a>
|
||
|
|
<p><tt>#include <<a href="qevent-h.html">qevent.h</a>></tt>
|
||
|
|
<p>Inherits <a href="qevent.html">TQEvent</a>.
|
||
|
|
<p><a href="qpaintevent-members.html">List of all member functions.</a>
|
||
|
|
<h2>Public Members</h2>
|
||
|
|
<ul>
|
||
|
|
<li class=fn><a href="#TQPaintEvent"><b>TQPaintEvent</b></a> ( const TQRegion & paintRegion, bool erased = TRUE )</li>
|
||
|
|
<li class=fn><a href="#TQPaintEvent-2"><b>TQPaintEvent</b></a> ( const TQRect & paintRect, bool erased = TRUE )</li>
|
||
|
|
<li class=fn><a href="#TQPaintEvent-3"><b>TQPaintEvent</b></a> ( const TQRegion & paintRegion, const TQRect & paintRect, bool erased = TRUE )</li>
|
||
|
|
<li class=fn>const TQRect & <a href="#rect"><b>rect</b></a> () const</li>
|
||
|
|
<li class=fn>const TQRegion & <a href="#region"><b>region</b></a> () const</li>
|
||
|
|
<li class=fn>bool <a href="#erased"><b>erased</b></a> () const</li>
|
||
|
|
</ul>
|
||
|
|
<hr><a name="details"></a><h2>Detailed Description</h2>
|
||
|
|
|
||
|
|
|
||
|
|
The TQPaintEvent class contains event parameters for paint events.
|
||
|
|
<p>
|
||
|
|
<p> Paint events are sent to widgets that need to update themselves,
|
||
|
|
for instance when part of a widget is exposed because a covering
|
||
|
|
widget is moved.
|
||
|
|
<p> The event contains a <a href="#region">region</a>() that needs to be updated, and a
|
||
|
|
<a href="#rect">rect</a>() that is the bounding rectangle of that region. Both are
|
||
|
|
provided because many widgets can't make much use of region(), and
|
||
|
|
rect() can be much faster than region().boundingRect(). Painting
|
||
|
|
is clipped to region() during processing of a paint event.
|
||
|
|
<p> The <a href="#erased">erased</a>() function returns TRUE if the region() has been
|
||
|
|
cleared to the widget's background (see
|
||
|
|
<a href="qwidget.html#backgroundMode">TQWidget::backgroundMode</a>()), and FALSE if the region's contents are
|
||
|
|
arbitrary.
|
||
|
|
<p> <p>See also <a href="qpainter.html">TQPainter</a>, <a href="qwidget.html#update">TQWidget::update</a>(), <a href="qwidget.html#repaint">TQWidget::repaint</a>(), <a href="qwidget.html#paintEvent">TQWidget::paintEvent</a>(), <a href="qwidget.html#backgroundMode-prop">TQWidget::backgroundMode</a>, <a href="qregion.html">TQRegion</a>, and <a href="events.html">Event Classes</a>.
|
||
|
|
|
||
|
|
<hr><h2>Member Function Documentation</h2>
|
||
|
|
<h3 class=fn><a name="TQPaintEvent"></a>TQPaintEvent::TQPaintEvent ( const <a href="qregion.html">TQRegion</a> & paintRegion, bool erased = TRUE )
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Constructs a paint event object with the region that should be
|
||
|
|
updated. The region is given by <em>paintRegion</em>. If <em>erased</em> is
|
||
|
|
TRUE the region will be cleared before repainting.
|
||
|
|
|
||
|
|
<h3 class=fn><a name="TQPaintEvent-2"></a>TQPaintEvent::TQPaintEvent ( const <a href="qrect.html">TQRect</a> & paintRect, bool erased = TRUE )
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Constructs a paint event object with the rectangle that should be
|
||
|
|
updated. The region is also given by <em>paintRect</em>. If <em>erased</em> is
|
||
|
|
TRUE the region will be cleared before repainting.
|
||
|
|
|
||
|
|
<h3 class=fn><a name="TQPaintEvent-3"></a>TQPaintEvent::TQPaintEvent ( const <a href="qregion.html">TQRegion</a> & paintRegion, const <a href="qrect.html">TQRect</a> & paintRect, bool erased = TRUE )
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Constructs a paint event object with the rectangle <em>paintRect</em>
|
||
|
|
that should be updated. The region is given by <em>paintRegion</em>. If
|
||
|
|
<em>erased</em> is TRUE the region will be cleared before repainting.
|
||
|
|
|
||
|
|
<h3 class=fn>bool <a name="erased"></a>TQPaintEvent::erased () const
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Returns TRUE if the paint event region (or rectangle) has been
|
||
|
|
erased with the widget's background; otherwise returns FALSE.
|
||
|
|
|
||
|
|
<h3 class=fn>const <a href="qrect.html">TQRect</a> & <a name="rect"></a>TQPaintEvent::rect () const
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Returns the rectangle that should be updated.
|
||
|
|
<p> <p>See also <a href="#region">region</a>() and <a href="qpainter.html#setClipRect">TQPainter::setClipRect</a>().
|
||
|
|
|
||
|
|
<p>Examples: <a href="life-example.html#x1892">life/life.cpp</a>, <a href="qfd-example.html#x2001">qfd/fontdisplayer.cpp</a>, <a href="showimg-example.html#x1340">showimg/showimg.cpp</a>, <a href="tutorial1-10.html#x2357">t10/cannon.cpp</a>, <a href="tutorial1-11.html#x2369">t11/cannon.cpp</a>, <a href="tutorial1-13.html#x2405">t13/cannon.cpp</a>, and <a href="tooltip-example.html#x446">tooltip/tooltip.cpp</a>.
|
||
|
|
<h3 class=fn>const <a href="qregion.html">TQRegion</a> & <a name="region"></a>TQPaintEvent::region () const
|
||
|
|
</h3>
|
||
|
|
|
||
|
|
<p> Returns the region that should be updated.
|
||
|
|
<p> <p>See also <a href="#rect">rect</a>() and <a href="qpainter.html#setClipRegion">TQPainter::setClipRegion</a>().
|
||
|
|
|
||
|
|
<p>Examples: <a href="qfd-example.html#x2002">qfd/fontdisplayer.cpp</a> and <a href="scribble-example.html#x920">scribble/scribble.cpp</a>.
|
||
|
|
<!-- eof -->
|
||
|
|
<hr><p>
|
||
|
|
This file is part of the <a href="index.html">TQt toolkit</a>.
|
||
|
|
Copyright © 1995-2007
|
||
|
|
<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
|
||
|
|
<table width=100% cellspacing=0 border=0><tr>
|
||
|
|
<td>Copyright © 2007
|
||
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
||
|
|
<td align=right><div align=right>TQt 3.3.8</div>
|
||
|
|
</table></div></address></body>
|
||
|
|
</html>
|