qtmultilineedit.html

QT 下载资料仅供参考

See the <a href="qtmultilineedit.html#text-prop">"text"</a> property for details.
<h3 class=fn>void <a name="setUndoDepth"></a>QtMultiLineEdit::setUndoDepth ( int )
</h3><p>Sets the undo depth.
See the <a href="qtmultilineedit.html#undoDepth-prop">"undoDepth"</a> property for details.
<h3 class=fn>void <a name="setUndoEnabled"></a>QtMultiLineEdit::setUndoEnabled ( bool )
</h3><p>Sets whether undo is enabled.
See the <a href="qtmultilineedit.html#undoEnabled-prop">"undoEnabled"</a> property for details.
<h3 class=fn>void <a name="setValidator"></a>QtMultiLineEdit::setValidator ( const&nbsp;<a href="qvalidator.html">QValidator</a>&nbsp;*&nbsp;v )<tt> [virtual]</tt>
</h3>
Not supported at this time.
<em>v</em> is the validator to set.

<h3 class=fn>void <a name="setWordWrap"></a>QtMultiLineEdit::setWordWrap ( <a href="qtmultilineedit.html#WordWrap-enum">WordWrap</a>&nbsp;mode )
</h3><p>Sets the word wrap mode to <em>mode</em>.
See the <a href="qtmultilineedit.html#wordWrap-prop">"wordWrap"</a> property for details.
<h3 class=fn>void <a name="setWrapColumnOrWidth"></a>QtMultiLineEdit::setWrapColumnOrWidth ( int )
</h3><p>Sets the wrap width in columns or pixels The wrap column or wrap width, depending on the word wrap mode.
See the <a href="qtmultilineedit.html#wrapColumnOrWidth-prop">"wrapColumnOrWidth"</a> property for details.
<h3 class=fn>void <a name="setWrapPolicy"></a>QtMultiLineEdit::setWrapPolicy ( <a href="qtmultilineedit.html#WrapPolicy-enum">WrapPolicy</a>&nbsp;policy )
</h3><p>Sets the wrap policy mode The default is <a href="#WrapPolicy-enum">AtWhiteSpace</a> to <em>policy</em>.
See the <a href="qtmultilineedit.html#wrapPolicy-prop">"wrapPolicy"</a> property for details.
<h3 class=fn><a href="qstring.html">QString</a> <a name="stringShown"></a>QtMultiLineEdit::stringShown ( int&nbsp;row ) const<tt> [protected]</tt>
</h3>
Returns the string shown at line <em>row</em>, including
processing of the <a href="#echoMode">echoMode</a>().

<h3 class=fn><a href="qstring.html">QString</a> <a name="text"></a>QtMultiLineEdit::text () const
</h3><p>Returns the multi-line edit's text.
See the <a href="qtmultilineedit.html#text-prop">"text"</a> property for details.
<h3 class=fn>void <a name="textChanged"></a>QtMultiLineEdit::textChanged ()<tt> [signal]</tt>
</h3> 
<p> This signal is emitted when the text is changed by an event or by a
slot. Note that the signal is not emitted when you call a non-slot
function such as <a href="#insertLine">insertLine</a>().
<p> <p>See also <a href="#returnPressed">returnPressed</a>().

<h3 class=fn><a href="qstring.html">QString</a> <a name="textLine"></a>QtMultiLineEdit::textLine ( int&nbsp;line ) const
</h3>
Returns the text at line number <em>line</em> (possibly the empty string),
or a <a href="qstring.html#operator!">null string</a> if <em>line</em> is invalid.

<h3 class=fn>int <a name="textWidth"></a>QtMultiLineEdit::textWidth ( int&nbsp;line )<tt> [protected]</tt>
</h3>
Returns the width in pixels of the text at line <em>line</em>.

<h3 class=fn>int <a name="textWidth-2"></a>QtMultiLineEdit::textWidth ( const&nbsp;<a href="qstring.html">QString</a>&nbsp;&amp;&nbsp;s )<tt> [protected]</tt>
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Returns the width in pixels of the string <em>s</em>.
NOTE: only appropriate for whole lines.

<h3 class=fn>void <a name="undo"></a>QtMultiLineEdit::undo ()<tt> [slot]</tt>
</h3>
Undoes the last text operation.

<h3 class=fn>void <a name="undoAvailable"></a>QtMultiLineEdit::undoAvailable ( bool&nbsp;yes )<tt> [signal]</tt>
</h3>

<p> This signal is emitted when the availability of undo changes.
If <em>yes</em> is TRUE, then <a href="#undo">undo</a>() will work until
<a href="#undoAvailable">undoAvailable</a>( FALSE ) is next emitted.

<h3 class=fn>int <a name="undoDepth"></a>QtMultiLineEdit::undoDepth () const
</h3><p>Returns the undo depth.
See the <a href="qtmultilineedit.html#undoDepth-prop">"undoDepth"</a> property for details.
<h3 class=fn>const&nbsp;<a href="qvalidator.html">QValidator</a>&nbsp;* <a name="validator"></a>QtMultiLineEdit::validator () const
</h3>
Not supported at this time.

<h3 class=fn><a href="qtmultilineedit.html#WordWrap-enum">WordWrap</a> <a name="wordWrap"></a>QtMultiLineEdit::wordWrap () const
</h3><p>Returns the word wrap mode.
See the <a href="qtmultilineedit.html#wordWrap-prop">"wordWrap"</a> property for details.
<h3 class=fn>int <a name="wrapColumnOrWidth"></a>QtMultiLineEdit::wrapColumnOrWidth () const
</h3><p>Returns the wrap width in columns or pixels The wrap column or wrap width, depending on the word wrap mode.
See the <a href="qtmultilineedit.html#wrapColumnOrWidth-prop">"wrapColumnOrWidth"</a> property for details.
<h3 class=fn><a href="qtmultilineedit.html#WrapPolicy-enum">WrapPolicy</a> <a name="wrapPolicy"></a>QtMultiLineEdit::wrapPolicy () const
</h3><p>Returns the wrap policy mode The default is <a href="#WrapPolicy-enum">AtWhiteSpace</a>.
See the <a href="qtmultilineedit.html#wrapPolicy-prop">"wrapPolicy"</a> property for details.
<hr><h2>Property Documentation</h2>
<h3 class=fn>Alignment <a name="alignment-prop"></a>alignment</h3>
<p>This property holds the alignment.
<p>Possible values are <a href="qt.html#AlignmentFlags-enum">AlignLeft</a>, <tt>Align(H)Center</tt> and <a href="qt.html#AlignmentFlags-enum">AlignRight</a>.
<p>See also <a href="qt.html#AlignmentFlags-enum">Qt::AlignmentFlags</a>.

<p>Set this property's value with <a href="#setAlignment">setAlignment</a>() and get this property's value with <a href="#alignment">alignment</a>().
<h3 class=fn>bool <a name="atBeginning-prop"></a>atBeginning</h3>
<p>This property holds whether the cursor is at the beginning.
<p>atBeginning() returns TRUE if the cursor is placed at the
beginning of the text.

<p>Get this property's value with <a href="#atBeginning">atBeginning</a>().
<h3 class=fn>bool <a name="atEnd-prop"></a>atEnd</h3>
<p>This property holds whether the cursor is at the end.
<p>atEnd() returns TRUE if the cursor is placed at the end of the text.

<p>Get this property's value with <a href="#atEnd">atEnd</a>().
<h3 class=fn>bool <a name="autoUpdate-prop"></a>autoUpdate</h3>
<p>This property holds whether auto update is enabled.
<p>autoUpdate() returns TRUE if the view updates itself automatically
whenever it is changed in some way.
<p> If <a href="#autoUpdate">autoUpdate</a>() is TRUE (this is the default) then the editor updates
itself automatically whenever it has changed in some way (generally,
when text has been inserted or deleted).
<p> If autoUpdate() is FALSE, the view does NOT repaint itself, or update
its internal state variables itself when it is changed.  This can be
useful to avoid flicker during large changes, and is singularly
useless otherwise: Disable auto-update, do the changes, re-enable
auto-update, and call <a href="qttableview.html#repaint">repaint</a>().
<p> <b>Warning:</b> Do not leave the view in this state for a long time
(i.e. between events ). If, for example, the user interacts with the
view when auto-update is off, strange things can happen.
<p> Setting auto-update to TRUE does not repaint the view, you must call
repaint() to do this (preferable repaint(FALSE) to avoid flicker).
<p> <p>See also <a href="qttableview.html#repaint">repaint</a>().

<p> 
<p>Set this property's value with <a href="#setAutoUpdate">setAutoUpdate</a>() and get this property's value with <a href="#autoUpdate">autoUpdate</a>().
<h3 class=fn><a href="qtmultilineedit.html#EchoMode-enum">EchoMode</a> <a name="echoMode-prop"></a>echoMode</h3>
<p>This property holds the echo mode.
<p>
<p>Set this property's value with <a href="#setEchoMode">setEchoMode</a>() and get this property's value with <a href="#echoMode">echoMode</a>().
<h3 class=fn>bool <a name="edited-prop"></a>edited</h3>
<p>This property holds whether the text had been edited.
<p>edited() returns the edited flag of the line edit.  If this returns FALSE,
the contents has not been changed since the construction of the
QtMultiLineEdit (or the last call to <a href="#setEdited">setEdited</a>( FALSE ), if any).  If
it returns TRUE, the contents have been edited, or setEdited( TRUE )
has been called.
<p> setEdited() sets the edited flag of this line edit to <em>e</em>.  The
edited flag is never read by QtMultiLineEdit, but is changed to TRUE
whenever the user changes its contents.
<p> This is useful e.g. for things that need to provide a default value,
but cannot find the default at once.  Just open the widget without the
best default and when the default is known, check the <a href="#edited">edited</a>() return
value and set the line edit's contents if the user has not started
editing the line edit.  Another example is to detect whether the
contents need saving.
<p> 
<p>Set this property's value with <a href="#setEdited">setEdited</a>() and get this property's value with <a href="#edited">edited</a>().
<h3 class=fn>int <a name="hMargin-prop"></a>hMargin</h3>
<p>This property holds the horizontal margin The horizontal margin current set. The default is 3.
<p>
<p>Set this property's value with <a href="#setHMargin">setHMargin</a>() and get this property's value with <a href="#hMargin">hMargin</a>().
<h3 class=fn>int <a name="length-prop"></a>length</h3>
<p>This property holds the length of the text.
<p>
<p>Get this property's value with <a href="#length">length</a>().
<h3 class=fn>int <a name="maxLength-prop"></a>maxLength</h3>
<p>This property holds the maximum length of the text.
<p>The currently set text length limit, or -1 if there is
no limit (this is the default).
<p> 
<p>Set this property's value with <a href="#setMaxLength">setMaxLength</a>() and get this property's value with <a href="#maxLength">maxLength</a>().
<h3 class=fn>int <a name="maxLineWidth-prop"></a>maxLineWidth</h3>
<p>This property holds the maximum line width in pixels Returns the width in pixels of the longest text line in this editor.
<p>
<p>Get this property's value with <a href="#maxLineWidth">maxLineWidth</a>().
<h3 class=fn>int <a name="maxLines-prop"></a>maxLines</h3>
<p>This property holds the maximum number of lines The currently set line limit, or -1 if there is no limit (the default).
<p>Note that excess lines are deleted from the <em>bottom</em> of the
lines. If you want teletype behaviour with lines disappearing
from the <em>top</em> as the limit is exceed, you probably just want
to use <a href="#removeLine">removeLine</a>(0) prior to adding an excess line.
<p> 
<p>Set this property's value with <a href="#setMaxLines">setMaxLines</a>() and get this property's value with <a href="#maxLines">maxLines</a>().
<h3 class=fn>int <a name="numLines-prop"></a>numLines</h3>
<p>This property holds the number of lines in the multi-line edit.
<p>numLines() returns the number of lines in the editor. The count
includes any empty lines at top and bottom, so for an empty editor
this method will return 1.

<p>Get this property's value with <a href="#numLines">numLines</a>().
<h3 class=fn>bool <a name="overWriteMode-prop"></a>overWriteMode</h3>
<p>This property holds the overwrite mode.
<p>
<p>Set this property's value with <a href="#setOverwriteMode">setOverwriteMode</a>() and get this property's value with <a href="#isOverwriteMode">isOverwriteMode</a>().
<h3 class=fn>bool <a name="readOnly-prop"></a>readOnly</h3>
<p>This property holds whether the multi-line edit is read-only.
<p>
<p>Set this property's value with <a href="#setReadOnly">setReadOnly</a>() and get this property's value with <a href="#isReadOnly">isReadOnly</a>().
<h3 class=fn><a href="qstring.html">QString</a> <a name="text-prop"></a>text</h3>
<p>This property holds the multi-line edit's text.
<p>
<p>Set this property's value with <a href="#setText">setText</a>() and get this property's value with <a href="#text">text</a>().
<h3 class=fn>int <a name="undoDepth-prop"></a>undoDepth</h3>
<p>This property holds the undo depth.
<p>The maximum number of operations that can be stored on the undo stack.
<p> <p>See also <a href="#undoDepth-prop">undoDepth</a>.

<p>Set this property's value with <a href="#setUndoDepth">setUndoDepth</a>() and get this property's value with <a href="#undoDepth">undoDepth</a>().
<h3 class=fn>bool <a name="undoEnabled-prop"></a>undoEnabled</h3>
<p>This property holds whether undo is enabled.
<p>
<p>Set this property's value with <a href="#setUndoEnabled">setUndoEnabled</a>() and get this property's value with <a href="#isUndoEnabled">isUndoEnabled</a>().
<h3 class=fn><a href="qtmultilineedit.html#WordWrap-enum">WordWrap</a> <a name="wordWrap-prop"></a>wordWrap</h3>
<p>This property holds the word wrap mode.
<p>By default, wrapping keeps words intact. To allow breaking within
words, set the wrap policy to <a href="#WrapPolicy-enum">Anywhere</a> (see <a href="#setWrapPolicy">setWrapPolicy</a>() ).
<p> The default wrap mode is <a href="#WordWrap-enum">NoWrap</a>.
<p> <p>See also <a href="#wrapColumnOrWidth-prop">wrapColumnOrWidth</a> and <a href="#wrapPolicy-prop">wrapPolicy</a>.

<p>Set this property's value with <a href="#setWordWrap">setWordWrap</a>() and get this property's value with <a href="#wordWrap">wordWrap</a>().
<h3 class=fn>int <a name="wrapColumnOrWidth-prop"></a>wrapColumnOrWidth</h3>
<p>This property holds the wrap width in columns or pixels The wrap column or wrap width, depending on the word wrap mode.
<p>Set this property's value with <a href="#setWrapColumnOrWidth">setWrapColumnOrWidth</a>() and get this property's value with <a href="#wrapColumnOrWidth">wrapColumnOrWidth</a>().
<p><p>See also <a href="#wordWrap-prop">wordWrap</a> and <a href="#wrapColumnOrWidth-prop">wrapColumnOrWidth</a>.

<h3 class=fn><a href="qtmultilineedit.html#WrapPolicy-enum">WrapPolicy</a> <a name="wrapPolicy-prop"></a>wrapPolicy</h3>
<p>This property holds the wrap policy mode The default is <a href="#WrapPolicy-enum">AtWhiteSpace</a>.
<p>
<p>Set this property's value with <a href="#setWrapPolicy">setWrapPolicy</a>() and get this property's value with <a href="#wrapPolicy">wrapPolicy</a>().
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