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279 lines
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/widgets/qdockarea.cpp:450 -->
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<title>TQDockArea Class</title>
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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>TQDockArea Class Reference</h1>
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<p>The TQDockArea class manages and lays out TQDockWindows.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qdockarea-h.html">ntqdockarea.h</a>></tt>
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<p>Inherits <a href="tqwidget.html">TQWidget</a>.
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<p><a href="qdockarea-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>enum <a href="#HandlePosition-enum"><b>HandlePosition</b></a> { Normal, Reverse }</li>
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<li class=fn><a href="#TQDockArea"><b>TQDockArea</b></a> ( Orientation o, HandlePosition h = Normal, TQWidget * parent = 0, const char * name = 0 )</li>
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<li class=fn><a href="#~TQDockArea"><b>~TQDockArea</b></a> ()</li>
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<li class=fn>void <a href="#moveDockWindow-2"><b>moveDockWindow</b></a> ( TQDockWindow * w, const TQPoint & p, const TQRect & r, bool swap )</li>
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<li class=fn>void <a href="#removeDockWindow"><b>removeDockWindow</b></a> ( TQDockWindow * w, bool makeFloating, bool swap, bool fixNewLines = TRUE )</li>
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<li class=fn>void <a href="#moveDockWindow"><b>moveDockWindow</b></a> ( TQDockWindow * w, int index = -1 )</li>
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<li class=fn>bool <a href="#hasDockWindow"><b>hasDockWindow</b></a> ( TQDockWindow * w, int * index = 0 )</li>
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<li class=fn>Orientation <a href="#orientation"><b>orientation</b></a> () const</li>
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<li class=fn>HandlePosition <a href="#handlePosition"><b>handlePosition</b></a> () const</li>
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<li class=fn>bool <a href="#isEmpty"><b>isEmpty</b></a> () const</li>
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<li class=fn>int <a href="#count"><b>count</b></a> () const</li>
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<li class=fn>TQPtrList<TQDockWindow> <a href="#dockWindowList"><b>dockWindowList</b></a> () const</li>
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<li class=fn>bool <a href="#isDockWindowAccepted"><b>isDockWindowAccepted</b></a> ( TQDockWindow * dw )</li>
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<li class=fn>void <a href="#setAcceptDockWindow"><b>setAcceptDockWindow</b></a> ( TQDockWindow * dw, bool accept )</li>
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</ul>
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<h2>Public Slots</h2>
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<ul>
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<li class=fn>void <a href="#lineUp"><b>lineUp</b></a> ( bool keepNewLines )</li>
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</ul>
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<h2>Properties</h2>
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<ul>
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<li class=fn>int <a href="#count-prop"><b>count</b></a> - the number of dock windows in the dock area <em>(read only)</em></li>
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<li class=fn>bool <a href="#empty-prop"><b>empty</b></a> - whether the dock area is empty <em>(read only)</em></li>
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<li class=fn>HandlePosition <a href="#handlePosition-prop"><b>handlePosition</b></a> - where the dock window splitter handle is placed in the dock area <em>(read only)</em></li>
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<li class=fn>Orientation <a href="#orientation-prop"><b>orientation</b></a> - the dock area's orientation <em>(read only)</em></li>
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</ul>
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<h2>Related Functions</h2>
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<ul>
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<li class=fn>TQTextStream & <a href="#operator-lt-lt"><b>operator<<</b></a> ( TQTextStream & ts, const TQDockArea & dockArea )</li>
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<li class=fn>TQTextStream & <a href="#operator-gt-gt"><b>operator>></b></a> ( TQTextStream & ts, TQDockArea & dockArea )</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The TQDockArea class manages and lays out TQDockWindows.
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<p>
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<p> A TQDockArea is a container which manages a list of
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<a href="ntqdockwindow.html">TQDockWindow</a>s which it lays out within its area. In cooperation
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with the <a href="ntqdockwindow.html">TQDockWindow</a>s it is responsible for the docking and
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undocking of <a href="ntqdockwindow.html">TQDockWindow</a>s and moving them inside the dock
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area. TQDockAreas also handle the wrapping of <a href="ntqdockwindow.html">TQDockWindow</a>s to
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fill the available space as compactly as possible. TQDockAreas can
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contain TQToolBars since <a href="ntqtoolbar.html">TQToolBar</a> is a <a href="ntqdockwindow.html">TQDockWindow</a> subclass.
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<p> <a href="ntqmainwindow.html">TQMainWindow</a> contains four TQDockAreas which you can use for your
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TQToolBars and TQDockWindows, so in most situations you do not need
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to use the TQDockArea class directly. Although TQMainWindow contains
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support for its own dock areas it isn't convenient for adding new
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TQDockAreas. If you need to create your own dock areas we suggest
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that you create a subclass of <a href="tqwidget.html">TQWidget</a> and add your TQDockAreas to
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your subclass.
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<p> <center><img src="qmainwindow-qdockareas.png" alt="TQMainWindow's TQDockAreas"></center>
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<p> <a name="lines"></a>
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<em>Lines</em>. TQDockArea uses the concept of lines. A line is a
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horizontal region which may contain dock windows side-by-side. A
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dock area may have room for more than one line. When dock windows
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are docked into a dock area they are usually added at the right
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hand side of the top-most line that has room (unless manually
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placed by the user). When users move dock windows they may leave
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empty lines or gaps in non-empty lines. Dock windows can be lined
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up to minimize wasted space using the <a href="#lineUp">lineUp</a>() function.
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<p> The TQDockArea class maintains a position list of all its child
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dock windows. Dock windows are added to a dock area from position
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0 onwards. Dock windows are laid out sequentially in position
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order from left to right, and in the case of multiple lines of
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dock windows, from top to bottom. If a dock window is floated it
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still retains its position since this is where the window will
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return if the user double clicks its caption. A dock window's
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position can be determined with <a href="#hasDockWindow">hasDockWindow</a>(). The position can
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be changed with <a href="#moveDockWindow">moveDockWindow</a>().
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<p> To dock or undock a dock window use <a href="ntqdockwindow.html#dock">TQDockWindow::dock</a>() and
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<a href="ntqdockwindow.html#undock">TQDockWindow::undock</a>() respectively. If you want to control which
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dock windows can dock in a dock area use <a href="#setAcceptDockWindow">setAcceptDockWindow</a>(). To
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see if a dock area contains a particular dock window use
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<a href="#hasDockWindow">hasDockWindow</a>(); to see how many dock windows a dock area
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contains use <a href="#count">count</a>().
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<p> The streaming operators can write the positions of the dock
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windows in the dock area to a <a href="ntqtextstream.html">TQTextStream</a>. The positions can be
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read back later to restore the saved positions.
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<p> Save the positions to a TQTextStream:
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<pre>
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ts << *myDockArea;
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</pre>
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<p> Restore the positions from a TQTextStream:
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<pre>
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ts >> *myDockArea;
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</pre>
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<p>See also <a href="application.html">Main Window and Related Classes</a>.
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<hr><h2>Member Type Documentation</h2>
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<h3 class=fn><a name="HandlePosition-enum"></a>TQDockArea::HandlePosition</h3>
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<p> A dock window has two kinds of handles, the dock window handle
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used for dragging the dock window, and the splitter handle used to
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resize the dock window in relation to other dock windows using a
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splitter. (The splitter handle is only visible for docked
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windows.)
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<p> This enum specifies where the dock window splitter handle is
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placed in the dock area.
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<ul>
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<li><tt>TQDockArea::Normal</tt> - The splitter handles of dock windows are placed at
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the right or bottom.
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<li><tt>TQDockArea::Reverse</tt> - The splitter handles of dock windows are placed at
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the left or top.
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</ul>
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQDockArea"></a>TQDockArea::TQDockArea ( <a href="ntqt.html#Orientation-enum">Orientation</a> o, <a href="ntqdockarea.html#HandlePosition-enum">HandlePosition</a> h = Normal, <a href="tqwidget.html">TQWidget</a> * parent = 0, const char * name = 0 )
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</h3>
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Constructs a TQDockArea with orientation <em>o</em>, HandlePosition <em>h</em>,
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parent <em>parent</em> and called <em>name</em>.
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<h3 class=fn><a name="~TQDockArea"></a>TQDockArea::~TQDockArea ()
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</h3>
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Destroys the dock area and all the dock windows docked in the dock
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area.
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<p> Does not affect any floating dock windows or dock windows in other
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dock areas, even if they first appeared in this dock area.
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Floating dock windows are effectively top level windows and are
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not child windows of the dock area. When a floating dock window is
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docked (dragged into a dock area) its parent becomes the dock
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area.
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<h3 class=fn>int <a name="count"></a>TQDockArea::count () const
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</h3><p>Returns the number of dock windows in the dock area.
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See the <a href="ntqdockarea.html#count-prop">"count"</a> property for details.
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<h3 class=fn><a href="ntqptrlist.html">TQPtrList</a><TQDockWindow> <a name="dockWindowList"></a>TQDockArea::dockWindowList () const
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</h3>
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Returns a list of the dock windows in the dock area.
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<h3 class=fn><a href="ntqdockarea.html#HandlePosition-enum">HandlePosition</a> <a name="handlePosition"></a>TQDockArea::handlePosition () const
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</h3><p>Returns where the dock window splitter handle is placed in the dock area.
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See the <a href="ntqdockarea.html#handlePosition-prop">"handlePosition"</a> property for details.
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<h3 class=fn>bool <a name="hasDockWindow"></a>TQDockArea::hasDockWindow ( <a href="ntqdockwindow.html">TQDockWindow</a> * w, int * index = 0 )
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</h3>
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Returns TRUE if the dock area contains the dock window <em>w</em>;
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otherwise returns FALSE. If <em>index</em> is not 0 it will be set as
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follows: if the dock area contains the dock window <em>*index</em> is
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set to <em>w</em>'s index position; otherwise <em>*index</em> is set to -1.
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<h3 class=fn>bool <a name="isDockWindowAccepted"></a>TQDockArea::isDockWindowAccepted ( <a href="ntqdockwindow.html">TQDockWindow</a> * dw )
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</h3>
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Returns TRUE if dock window <em>dw</em> could be docked into the dock
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area; otherwise returns FALSE.
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<p> <p>See also <a href="#setAcceptDockWindow">setAcceptDockWindow</a>().
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<h3 class=fn>bool <a name="isEmpty"></a>TQDockArea::isEmpty () const
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</h3><p>Returns TRUE if the dock area is empty; otherwise returns FALSE.
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See the <a href="ntqdockarea.html#empty-prop">"empty"</a> property for details.
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<h3 class=fn>void <a name="lineUp"></a>TQDockArea::lineUp ( bool keepNewLines )<tt> [slot]</tt>
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</h3>
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Lines up the dock windows in this dock area to minimize wasted
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space. If <em>keepNewLines</em> is TRUE, only space within lines is
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cleaned up. If <em>keepNewLines</em> is FALSE the number of lines might
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be changed.
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<h3 class=fn>void <a name="moveDockWindow"></a>TQDockArea::moveDockWindow ( <a href="ntqdockwindow.html">TQDockWindow</a> * w, int index = -1 )
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</h3>
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Moves the <a href="ntqdockwindow.html">TQDockWindow</a> <em>w</em> within the dock area. If <em>w</em> is not
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already docked in this area, <em>w</em> is docked first. If <em>index</em> is
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-1 or larger than the number of docked widgets, <em>w</em> is appended
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at the end, otherwise it is inserted at the position <em>index</em>.
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<h3 class=fn>void <a name="moveDockWindow-2"></a>TQDockArea::moveDockWindow ( <a href="ntqdockwindow.html">TQDockWindow</a> * w, const <a href="ntqpoint.html">TQPoint</a> & p, const <a href="ntqrect.html">TQRect</a> & r, bool swap )
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</h3>
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This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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<p> Moves the dock window <em>w</em> inside the dock area where <em>p</em> is the
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new position (in global screen coordinates), <em>r</em> is the suggested
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rectangle of the dock window and <em>swap</em> specifies whether or not
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the orientation of the docked widget needs to be changed.
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<p> This function is used internally by <a href="ntqdockwindow.html">TQDockWindow</a>. You shouldn't
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need to call it yourself.
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<h3 class=fn><a href="ntqt.html#Orientation-enum">Orientation</a> <a name="orientation"></a>TQDockArea::orientation () const
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</h3><p>Returns the dock area's orientation.
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See the <a href="ntqdockarea.html#orientation-prop">"orientation"</a> property for details.
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<h3 class=fn>void <a name="removeDockWindow"></a>TQDockArea::removeDockWindow ( <a href="ntqdockwindow.html">TQDockWindow</a> * w, bool makeFloating, bool swap, bool fixNewLines = TRUE )
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</h3>
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Removes the dock window <em>w</em> from the dock area. If <em>makeFloating</em> is TRUE, <em>w</em> gets floated, and if <em>swap</em> is TRUE,
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the orientation of <em>w</em> gets swapped. If <em>fixNewLines</em> is TRUE
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(the default) newlines in the area will be fixed.
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<p> You should never need to call this function yourself. Use
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<a href="ntqdockwindow.html#dock">TQDockWindow::dock</a>() and <a href="ntqdockwindow.html#undock">TQDockWindow::undock</a>() instead.
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<h3 class=fn>void <a name="setAcceptDockWindow"></a>TQDockArea::setAcceptDockWindow ( <a href="ntqdockwindow.html">TQDockWindow</a> * dw, bool accept )
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</h3>
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If <em>accept</em> is TRUE, dock window <em>dw</em> can be docked in the dock
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area. If <em>accept</em> is FALSE, dock window <em>dw</em> cannot be docked in
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the dock area.
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<p> <p>See also <a href="#isDockWindowAccepted">isDockWindowAccepted</a>().
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<hr><h2>Property Documentation</h2>
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<h3 class=fn>int <a name="count-prop"></a>count</h3>
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<p>This property holds the number of dock windows in the dock area.
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<p>
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<p>Get this property's value with <a href="#count">count</a>().
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<h3 class=fn>bool <a name="empty-prop"></a>empty</h3>
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<p>This property holds whether the dock area is empty.
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<p>
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<p>Get this property's value with <a href="#isEmpty">isEmpty</a>().
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<h3 class=fn><a href="ntqdockarea.html#HandlePosition-enum">HandlePosition</a> <a name="handlePosition-prop"></a>handlePosition</h3>
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<p>This property holds where the dock window splitter handle is placed in the dock area.
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<p>The default position is <a href="#HandlePosition-enum">Normal</a>.
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<p>Get this property's value with <a href="#handlePosition">handlePosition</a>().
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<h3 class=fn><a href="ntqt.html#Orientation-enum">Orientation</a> <a name="orientation-prop"></a>orientation</h3>
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<p>This property holds the dock area's orientation.
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<p>There is no default value; the orientation is specified in the
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constructor.
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<p>Get this property's value with <a href="#orientation">orientation</a>().
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<hr><h2>Related Functions</h2>
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<h3 class=fn><a href="ntqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt"></a>operator<< ( <a href="ntqtextstream.html">TQTextStream</a> & ts, const <a href="ntqdockarea.html">TQDockArea</a> & dockArea )
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</h3>
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<p> Writes the layout of the dock windows in dock area <em>dockArea</em> to
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the text stream <em>ts</em>.
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<p> <p>See also <a href="#operator-gt-gt">operator>></a>().
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<h3 class=fn><a href="ntqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt"></a>operator>> ( <a href="ntqtextstream.html">TQTextStream</a> & ts, <a href="ntqdockarea.html">TQDockArea</a> & dockArea )
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</h3>
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<p> Reads the layout description of the dock windows in dock area <em>dockArea</em> from the text stream <em>ts</em> and restores it. The layout
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description must have been previously written by the <a href="#operator-lt-lt">operator<<</a>()
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function.
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<p> <p>See also <a href="#operator-lt-lt">operator<<</a>().
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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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