diff options
Diffstat (limited to 'doc/html/qimevent.html')
| -rw-r--r-- | doc/html/qimevent.html | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/doc/html/qimevent.html b/doc/html/qimevent.html new file mode 100644 index 000000000..1b0cfcba0 --- /dev/null +++ b/doc/html/qimevent.html @@ -0,0 +1,173 @@ +<!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:1761 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>TQIMEvent 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>TQIMEvent Class Reference</h1> + +<p>The TQIMEvent class provides parameters for input method 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="qimevent-members.html">List of all member functions.</a> +<h2>Public Members</h2> +<ul> +<li class=fn><a href="#TQIMEvent"><b>TQIMEvent</b></a> ( Type type, const TQString & text, int cursorPosition )</li> +<li class=fn>const TQString & <a href="#text"><b>text</b></a> () const</li> +<li class=fn>int <a href="#cursorPos"><b>cursorPos</b></a> () const</li> +<li class=fn>bool <a href="#isAccepted"><b>isAccepted</b></a> () const</li> +<li class=fn>void <a href="#accept"><b>accept</b></a> ()</li> +<li class=fn>void <a href="#ignore"><b>ignore</b></a> ()</li> +<li class=fn>int <a href="#selectionLength"><b>selectionLength</b></a> () const</li> +</ul> +<hr><a name="details"></a><h2>Detailed Description</h2> + + +The TQIMEvent class provides parameters for input method events. +<p> +<p> Input method events are sent to widgets when an input method is +used to enter text into a widget. Input methods are widely used to +enter text in Asian and other complex languages. +<p> The events are of interest to widgets that accept keyboard input +and want to be able to correctly handle complex languages. Text +input in such languages is usually a three step process. +<p> <ol type=1> +<li> <b>Starting to Compose</b><br> +When the user presses the first key on a keyboard an input context +is created. This input context will contain a string with the +typed characters. +<p> <li> <b>Composing</b><br> +With every new key pressed, the input method will try to create a +matching string for the text typed so far. While the input context +is active, the user can only move the cursor inside the string +belonging to this input context. +<p> <li> <b>Completing</b><br> +At some point, e.g. when the user presses the Spacebar, they get +to this stage, where they can choose from a number of strings that +match the text they have typed so far. The user can press Enter to +confirm their choice or Escape to cancel the input; in either case +the input context will be closed. +</ol> +<p> Note that the particular key presses used for a given input +context may differ from those we've mentioned here, i.e. they may +not be Spacebar, Enter and Escape. +<p> These three stages are represented by three different types of +events. The IMStartEvent, IMComposeEvent and IMEndEvent. When a +new input context is created, an IMStartEvent will be sent to the +widget and delivered to the <a href="qwidget.html#imStartEvent">TQWidget::imStartEvent</a>() function. +The widget can then update internal data structures to reflect +this. +<p> After this, an IMComposeEvent will be sent to the widget for +every key the user presses. It will contain the current +composition string the widget has to show and the current cursor +position within the composition string. This string is temporary +and can change with every key the user types, so the widget will +need to store the state before the composition started (the state +it had when it received the IMStartEvent). IMComposeEvents will be +delivered to the <a href="qwidget.html#imComposeEvent">TQWidget::imComposeEvent</a>() function. +<p> Usually, widgets try to mark the part of the text that is part of +the current composition in a way that is visible to the user. A +commonly used visual cue is to use a dotted underline. +<p> After the user has selected the final string, an IMEndEvent will +be sent to the widget. The event contains the final string the +user selected, and could be empty if they canceled the +composition. This string should be accepted as the final text the +user entered, and the intermediate composition string should be +cleared. These events are delivered to <a href="qwidget.html#imEndEvent">TQWidget::imEndEvent</a>(). +<p> If the user clicks another widget, taking the focus out of the +widget where the composition is taking place the IMEndEvent will +be sent and the string it holds will be the result of the +composition up to that point (which may be an empty string). +<p>See also <a href="events.html">Event Classes</a>. + +<hr><h2>Member Function Documentation</h2> +<h3 class=fn><a name="TQIMEvent"></a>TQIMEvent::TQIMEvent ( <a href="qevent.html#Type-enum">Type</a> type, const <a href="qstring.html">TQString</a> & text, int cursorPosition ) +</h3> + +<p> Constructs a new TQIMEvent with the accept flag set to FALSE. <em>type</em> can be one of TQEvent::IMStartEvent, TQEvent::IMComposeEvent +or TQEvent::IMEndEvent. <em>text</em> contains the current compostion +string and <em>cursorPosition</em> the current position of the cursor +inside <em>text</em>. + +<h3 class=fn>void <a name="accept"></a>TQIMEvent::accept () +</h3> + +<p> Sets the accept flag of the input method event object. +<p> Setting the accept parameter indicates that the receiver of the +event processed the input method event. +<p> The accept flag is not set by default. +<p> <p>See also <a href="#ignore">ignore</a>(). + +<h3 class=fn>int <a name="cursorPos"></a>TQIMEvent::cursorPos () const +</h3> + +<p> Returns the current cursor position inside the composition string. +Will return -1 for IMStartEvent and IMEndEvent. + +<h3 class=fn>void <a name="ignore"></a>TQIMEvent::ignore () +</h3> + +<p> Clears the accept flag parameter of the input method event object. +<p> Clearing the accept parameter indicates that the event receiver +does not want the input method event. +<p> The accept flag is cleared by default. +<p> <p>See also <a href="#accept">accept</a>(). + +<h3 class=fn>bool <a name="isAccepted"></a>TQIMEvent::isAccepted () const +</h3> + +<p> Returns TRUE if the receiver of the event processed the event; +otherwise returns FALSE. + +<h3 class=fn>int <a name="selectionLength"></a>TQIMEvent::selectionLength () const +</h3> + +<p> Returns the number of characters in the composition string ( +starting at <a href="#cursorPos">cursorPos</a>() ) that should be marked as selected by the +input widget receiving the event. +Will return 0 for IMStartEvent and IMEndEvent. + +<h3 class=fn>const <a href="qstring.html">TQString</a> & <a name="text"></a>TQIMEvent::text () const +</h3> + +<p> Returns the composition text. This is a null string for an +IMStartEvent, and contains the final accepted string (which may be +empty) in the IMEndEvent. + +<!-- 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> |