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<title>KFadeWidgetEffect</title>
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KDE 4.9 PyKDE API Reference
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<h1>KFadeWidgetEffect Class Reference</h1>
<code>from PyKDE4.kdeui import *</code>
<p>
Inherits: QWidget → QObject<br />
<h2>Detailed Description</h2>
<p>\class KFadeWidgetEffect kfadewidgeteffect.h KFadeWidgetEffect
Animates changes fading the new UI over the old look.
</p>
<p>
This widget will put itself above the widget that will change and show a fading transition from
the old to the new UI. It will delete itself after the animation is finished.
Example:
<pre class="fragment">
KFadeWidgetEffect *animation = new KFadeWidgetEffect(widgetThatWillChange);
// do changes on widgetThatWillChange
// ...
animation->start();
</pre>
</p>
<p>
<dl class="note" compact><dt><b>Note:</b></dt><dd> The widget that changes needs to have a parent widget. KFadeWidgetEffect does not work
for toplevel widgets (windows).
</dd></dl> </p>
<p>
<dl class="author" compact><dt><b>Author:</b></dt><dd> Matthias Kretz <kretz@kde.org> </dd></dl>
<dl class="since" compact><dt><b>Since:</b></dt><dd> 4.1
</dd></dl>
</p>
<table border="0" cellpadding="0" cellspacing="0"><tr><td colspan="2"><br><h2>Methods</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#KFadeWidgetEffect">__init__</a> (self, QWidget destWidget)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#paintEvent">paintEvent</a> (self, QPaintEvent a0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#start">start</a> (self, int duration=250)</td></tr>
</table>
<hr><h2>Method Documentation</h2><a class="anchor" name="KFadeWidgetEffect"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">__init__</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QWidget </td>
<td class="paramname"><em>destWidget</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Create the animation widget. Takes a snapshot of the <b>destWidget</b> to use as old image
that gets faded out.
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>destWidget</em> </td><td> The widget that will change and should fade to the new look.
</td></tr>
</table></dl>
<p>
</p></div></div><a class="anchor" name="paintEvent"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> paintEvent</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QPaintEvent </td>
<td class="paramname"><em>a0</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p><dl class="internal" compact><dt><b>Internal:</b></dt><dd>
</dd></dl>
</p></div></div><a class="anchor" name="start"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> start</td>
<td>(</td>
<td class="paramtype"> <em>self</em>, </td>
<td class="paramname"></td>
</tr><tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>duration=250</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Starts the animation.
</p>
<p>
Call this function after all visual changes are done.
</p>
<p>
</p><dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign="top"><em>duration</em> </td><td> The duration of the animation in milliseconds.
</td></tr>
</table></dl>
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