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134 lines
6.6 KiB
134 lines
6.6 KiB
13 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/kernel/qwindowsystem_qws.cpp:3127 -->
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>TQWSInputMethod Class</title>
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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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>TQWSInputMethod Class Reference</h1>
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<p>The TQWSInputMethod class provides international input methods
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for TQt/Embedded.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qwindowsystem_qws-h.html">qwindowsystem_qws.h</a>></tt>
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<p><a href="qwsinputmethod-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="#TQWSInputMethod"><b>TQWSInputMethod</b></a> ()</li>
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<li class=fn>virtual <a href="#~TQWSInputMethod"><b>~TQWSInputMethod</b></a> ()</li>
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<li class=fn>virtual bool <a href="#filter"><b>filter</b></a> ( int unicode, int keycode, int modifiers, bool isPress, bool autoRepeat ) = 0</li>
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<li class=fn>virtual void <a href="#reset"><b>reset</b></a> ()</li>
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<li class=fn>virtual void <a href="#setMicroFocus"><b>setMicroFocus</b></a> ( int x, int y )</li>
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<li class=fn>virtual void <a href="#setFont"><b>setFont</b></a> ( const TQFont & )</li>
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</ul>
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<h2>Protected Members</h2>
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<ul>
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<li class=fn>void <a href="#sendIMEvent"><b>sendIMEvent</b></a> ( TQWSServer::IMState state, const TQString & txt, int cpos, int selLen = 0 )</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The TQWSInputMethod class provides international input methods
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for TQt/Embedded.
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<p>
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<p> Subclass this class to implement your own input method.
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<p> An input methods consists of a keyboard filter and optionally a
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graphical interface. The keyboard filter intercepts key events
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from physical or virtual keyboards by implementing the <a href="#filter">filter</a>()
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function.
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<p> Use <a href="#sendIMEvent">sendIMEvent</a>() to send composition events. Composition starts
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with the input method sending an <tt>IMStart</tt> event, followed by a
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number of <tt>IMCompose</tt> events and ending with an <tt>IMEnd</tt> event or
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when the virtual <a href="#reset">reset</a>() function is called.
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<p> The functions <a href="#setMicroFocus">setMicroFocus</a>() and <a href="#setFont">setFont</a>() can be reimplemented
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to receive more information about the state of the focus widget.
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<p> Use TQWSServer::setCurrentInputMethod() to install an input method.
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<p> <p>See also <a href="qws.html">TQt/Embedded</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQWSInputMethod"></a>TQWSInputMethod::TQWSInputMethod ()
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</h3>
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Constructs a new input method
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<h3 class=fn><a name="~TQWSInputMethod"></a>TQWSInputMethod::~TQWSInputMethod ()<tt> [virtual]</tt>
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</h3>
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Destructs the input method uninstalling it if it is currently installed.
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<h3 class=fn>bool <a name="filter"></a>TQWSInputMethod::filter ( int unicode, int keycode, int modifiers, bool isPress, bool autoRepeat )<tt> [pure virtual]</tt>
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</h3>
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<p> This function must be implemented in subclasses to handle key
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input from physical or virtual keyboards. Returning TRUE will
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block the event from further processing.
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<p> The Unicode value is given in <em>unicode</em> and the key code in <em>keycode</em>. Keyboard modifiers are OR-ed together in <em>modifiers</em>.
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If <em>isPress</em> is TRUE this is a key press; otherwise it is a key
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release. If <em>autoRepeat</em> is TRUE this is an auto-repeated key
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press.
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<p> All normal key events should be blocked while in compose mode
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(i.e., between <tt>IMStart</tt> and <tt>IMEnd</tt>).
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<p>
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<h3 class=fn>void <a name="reset"></a>TQWSInputMethod::reset ()<tt> [virtual]</tt>
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</h3>
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Implemented in subclasses to reset the state of the input method.
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<h3 class=fn>void <a name="sendIMEvent"></a>TQWSInputMethod::sendIMEvent ( TQWSServer::IMState state, const <a href="qstring.html">TQString</a> & txt, int cpos, int selLen = 0 )<tt> [protected]</tt>
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</h3>
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<p> Causes a <a href="qimevent.html">TQIMEvent</a> to be sent to the focus widget. <em>state</em> may be
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one of <a href="qwsserver.html#IMState-enum">TQWSServer::IMStart</a>, <a href="qwsserver.html#IMState-enum">TQWSServer::IMCompose</a> or <a href="qwsserver.html#IMState-enum">TQWSServer::IMEnd</a>.
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<p> <em>txt</em> is the text being composed (or the finished text if state
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is <tt>IMEnd</tt>). <em>cpos</em> is the current cursor position.
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<p> If state is <tt>IMCompose</tt>, <em>selLen</em> is the number of characters in
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the composition string (starting at <em>cpos</em>) that should be
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marked as selected by the input widget receiving the event.
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<h3 class=fn>void <a name="setFont"></a>TQWSInputMethod::setFont ( const <a href="qfont.html">TQFont</a> & )<tt> [virtual]</tt>
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</h3>
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Implemented in subclasses to handle font changes in the focus
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widget.
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<p> This functionality is provided for future expansion; it is not
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used in this version of TQt/Embedded.
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<h3 class=fn>void <a name="setMicroFocus"></a>TQWSInputMethod::setMicroFocus ( int x, int y )<tt> [virtual]</tt>
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</h3>
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<p> Implemented in subclasses to handle microFocusHint changes in the
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focus widget. <em>x</em> and <em>y</em> are the global coordinates of the
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text cursor.
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<p>
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<!-- eof -->
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<hr><p>
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This file is part of the <a href="index.html">TQt toolkit</a>.
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Copyright © 1995-2007
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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</html>
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