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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<title>Sonnet.BackgroundChecker</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta http-equiv="Content-Style-Type" content="text/css" />
<link rel="stylesheet" type="text/css" href="../common/doxygen.css" />
<link rel="stylesheet" media="screen" type="text/css" title="KDE Colors" href="../common/kde.css" />
</head>
<body>
<div id="container">
<div id="header">
<div id="header_top">
<div>
<div>
<img alt ="" src="../common/top-kde.jpg"/>
KDE 4.9 PyKDE API Reference
</div>
</div>
</div>
<div id="header_bottom">
<div id="location">
<ul>
<li>KDE's Python API</li>
</ul>
</div>
<div id="menu">
<ul>
<li><a href="../modules.html">Overview</a></li>
<li><a href="http://techbase.kde.org/Development/Languages/Python">PyKDE Home</a></li>
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<div class="content">
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<div class="clearer"> </div>
<h1>BackgroundChecker Class Reference</h1>
<code>from PyKDE4.kdecore import *</code>
<p>
Inherits: QObject<br />
Namespace: <a href="../kdecore/Sonnet.html">Sonnet</a><br />
<h2>Detailed Description</h2>
<p>BackgroundChecker is used to perform spell checking without
blocking the application. You can use it as is by calling
the checkText function or subclass it and reimplement
getMoreText function.
</p>
<p>
The misspelling signal is emitted whenever a misspelled word
is found. The background checker stops right before emitting
the signal. So the parent has to call continueChecking function
to resume the checking.
</p>
<p>
done signal is emitted when whole text is spell checked.
</p>
<p>
<dl class="author" compact><dt><b>Author:</b></dt><dd> Zack Rusin <zack@kde.org> </dd></dl>
class used for spell checking in the background
</p>
<table border="0" cellpadding="0" cellspacing="0"><tr><td colspan="2"><br><h2>Signals</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#done">done</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#misspelling">misspelling</a> (QString word, int start)</td></tr>
<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="#BackgroundChecker">__init__</a> (self, QObject parent=0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#BackgroundChecker">__init__</a> (self, <a href="../kdecore/Sonnet.Speller.html">Sonnet.Speller</a> speller, QObject parent=0)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="#addWordToPersonal">addWordToPersonal</a> (self, QString word)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#changeLanguage">changeLanguage</a> (self, QString lang)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="#checkWord">checkWord</a> (self, QString word)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#continueChecking">continueChecking</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">QString </td><td class="memItemRight" valign="bottom"><a class="el" href="#currentContext">currentContext</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">QString </td><td class="memItemRight" valign="bottom"><a class="el" href="#fetchMoreText">fetchMoreText</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#finishedCurrentFeed">finishedCurrentFeed</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#replace">replace</a> (self, int start, QString oldText, QString newText)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#restore">restore</a> (self, <a href="../kdecore/KConfig.html">KConfig</a> config)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#setSpeller">setSpeller</a> (self, <a href="../kdecore/Sonnet.Speller.html">Sonnet.Speller</a> speller)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#setText">setText</a> (self, QString text)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#slotEngineDone">slotEngineDone</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a href="../kdecore/Sonnet.Speller.html">Sonnet.Speller</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="#speller">speller</a> (self)</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)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="#stop">stop</a> (self)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">QStringList </td><td class="memItemRight" valign="bottom"><a class="el" href="#suggest">suggest</a> (self, QString word)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">QString </td><td class="memItemRight" valign="bottom"><a class="el" href="#text">text</a> (self)</td></tr>
</table>
<hr><h2>Signal Documentation</h2><a class="anchor" name="done"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> done</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname">)</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>Emitted after the whole text has been spell checked.
</p><dl compact><dt><b>Signal syntax:</b></dt><dd><code>QObject.connect(source, SIGNAL("done()"), target_slot)</code></dd></dl></div></div><a class="anchor" name="misspelling"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> misspelling</td>
<td>(</td>
<td class="paramtype">QString </td>
<td class="paramname"><em>word</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>start</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>Emitted whenever a misspelled word is found
</p><dl compact><dt><b>Signal syntax:</b></dt><dd><code>QObject.connect(source, SIGNAL("misspelling(const QString&, int)"), target_slot)</code></dd></dl></div></div><hr><h2>Method Documentation</h2><a class="anchor" name="BackgroundChecker"></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">QObject </td>
<td class="paramname"><em>parent=0</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="BackgroundChecker"></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"><a href="../kdecore/Sonnet.Speller.html">Sonnet.Speller</a> </td>
<td class="paramname"><em>speller</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QObject </td>
<td class="paramname"><em>parent=0</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="addWordToPersonal"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool addWordToPersonal</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">QString </td>
<td class="paramname"><em>word</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="changeLanguage"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> changeLanguage</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">QString </td>
<td class="paramname"><em>lang</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="checkWord"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">bool checkWord</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">QString </td>
<td class="paramname"><em>word</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="continueChecking"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> continueChecking</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>After emitting misspelling signal the background
checker stops. The catcher is responsible for calling
continueChecking function to resume checking.
</p></div></div><a class="anchor" name="currentContext"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">QString currentContext</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="fetchMoreText"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">QString fetchMoreText</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>This function is called to get the text to spell check.
It will be called continuesly until it returns QString()
in which case the done() signal is emitted.
Note: the start parameter in mispelling() is not a combined
position but a position in the last string returned
by fetchMoreText. You need to store the state in the derivatives.
</p></div></div><a class="anchor" name="finishedCurrentFeed"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> finishedCurrentFeed</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"><p>This function will be called whenever the background checker
will be finished text which it got from fetchMoreText.
</p></div></div><a class="anchor" name="replace"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> replace</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>start</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>oldText</em>, </td>
</tr>
<tr>
<td class="memname"></td>
<td></td>
<td class="paramtype">QString </td>
<td class="paramname"><em>newText</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="restore"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> restore</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"><a href="../kdecore/KConfig.html">KConfig</a> </td>
<td class="paramname"><em>config</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="setSpeller"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> setSpeller</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"><a href="../kdecore/Sonnet.Speller.html">Sonnet.Speller</a> </td>
<td class="paramname"><em>speller</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="setText"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> setText</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">QString </td>
<td class="paramname"><em>text</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
<td></td>
<td width="100%"> </td>
</tr></table>
</div>
<div class="memdoc"><p>This method is used to spell check static text.
It automatically invokes start().
</p>
<p>
Use fetchMoreText() with start() to spell check a stream.
</p></div></div><a class="anchor" name="slotEngineDone"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> slotEngineDone</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="speller"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"><a href="../kdecore/Sonnet.Speller.html">Sonnet.Speller</a> speller</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"></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"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="stop"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname"> stop</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname"><em>self</em> )</td>
<td width="100%"> </td>
</tr>
</table>
</div>
<div class="memdoc"></div></div><a class="anchor" name="suggest"></a>
<div class="memitem">
<div class="memproto">
<table class="memname"><tr>
<td class="memname">QStringList suggest</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">QString </td>
<td class="paramname"><em>word</em></td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td>
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