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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 > TQListBoxItem Class Reference< / h1 >
< p > The TQListBoxItem class is the base class of all list box items.
< a href = "#details" > More...< / a >
< p > < tt > #include < < a href = "qlistbox-h.html" > ntqlistbox.h< / a > > < / tt >
< p > Inherited by < a href = "qlistboxtext.html" > TQListBoxText< / a > and < a href = "qlistboxpixmap.html" > TQListBoxPixmap< / a > .
< p > < a href = "qlistboxitem-members.html" > List of all member functions.< / a >
< h2 > Public Members< / h2 >
< ul >
< li class = fn > < a href = "#TQListBoxItem" > < b > TQListBoxItem< / b > < / a > ( TQListBox * listbox = 0 )< / li >
< li class = fn > < a href = "#TQListBoxItem-2" > < b > TQListBoxItem< / b > < / a > ( TQListBox * listbox, TQListBoxItem * after )< / li >
< li class = fn > virtual < a href = "#~TQListBoxItem" > < b > ~TQListBoxItem< / b > < / a > ()< / li >
< li class = fn > virtual TQString < a href = "#text" > < b > text< / b > < / a > () const< / li >
< li class = fn > virtual const TQPixmap * < a href = "#pixmap" > < b > pixmap< / b > < / a > () const< / li >
< li class = fn > virtual int < a href = "#height" > < b > height< / b > < / a > ( const TQListBox * lb ) const< / li >
< li class = fn > virtual int < a href = "#width" > < b > width< / b > < / a > ( const TQListBox * lb ) const< / li >
< li class = fn > bool < a href = "#isSelected" > < b > isSelected< / b > < / a > () const< / li >
< li class = fn > bool < a href = "#isCurrent" > < b > isCurrent< / b > < / a > () const< / li >
< li class = fn > bool selected () const < em > (obsolete)< / em > < / li >
< li class = fn > bool current () const < em > (obsolete)< / em > < / li >
< li class = fn > TQListBox * < a href = "#listBox" > < b > listBox< / b > < / a > () const< / li >
< li class = fn > void < a href = "#setSelectable" > < b > setSelectable< / b > < / a > ( bool b )< / li >
< li class = fn > bool < a href = "#isSelectable" > < b > isSelectable< / b > < / a > () const< / li >
< li class = fn > TQListBoxItem * < a href = "#next" > < b > next< / b > < / a > () const< / li >
< li class = fn > TQListBoxItem * < a href = "#prev" > < b > prev< / b > < / a > () const< / li >
< li class = fn > virtual int < a href = "#rtti" > < b > rtti< / b > < / a > () const< / li >
< / ul >
< h2 > Protected Members< / h2 >
< ul >
< li class = fn > virtual void < a href = "#paint" > < b > paint< / b > < / a > ( TQPainter * p ) = 0< / li >
< li class = fn > virtual void < a href = "#setText" > < b > setText< / b > < / a > ( const TQString & text )< / li >
< li class = fn > void < a href = "#setCustomHighlighting" > < b > setCustomHighlighting< / b > < / a > ( bool b )< / li >
< / ul >
< hr > < a name = "details" > < / a > < h2 > Detailed Description< / h2 >
The TQListBoxItem class is the base class of all list box items.
< p > This class is an abstract base class used for all list box items.
If you need to insert customized items into a < a href = "ntqlistbox.html" > TQListBox< / a > you must
inherit this class and reimplement < a href = "#paint" > paint< / a > (), < a href = "#height" > height< / a > () and < a href = "#width" > width< / a > ().
< p > < p > See also < a href = "ntqlistbox.html" > TQListBox< / a > .
< hr > < h2 > Member Function Documentation< / h2 >
< h3 class = fn > < a name = "TQListBoxItem" > < / a > TQListBoxItem::TQListBoxItem ( < a href = "ntqlistbox.html" > TQListBox< / a > * listbox = 0 )
< / h3 >
Constructs an empty list box item in the list box < em > listbox< / em > .
< h3 class = fn > < a name = "TQListBoxItem-2" > < / a > TQListBoxItem::TQListBoxItem ( < a href = "ntqlistbox.html" > TQListBox< / a > * listbox, < a href = "qlistboxitem.html" > TQListBoxItem< / a > * after )
< / h3 >
Constructs an empty list box item in the list box < em > listbox< / em > and
inserts it after the item < em > after< / em > or at the beginning if < em > after< / em >
is 0.
< h3 class = fn > < a name = "~TQListBoxItem" > < / a > TQListBoxItem::~TQListBoxItem ()< tt > [virtual]< / tt >
< / h3 >
Destroys the list box item.
< h3 class = fn > bool < a name = "current" > < / a > TQListBoxItem::current () const
< / h3 >
< b > This function is obsolete.< / b > It is provided to keep old source working. We strongly advise against using it in new code.
< p >
< h3 class = fn > int < a name = "height" > < / a > TQListBoxItem::height ( const < a href = "ntqlistbox.html" > TQListBox< / a > * lb ) const< tt > [virtual]< / tt >
< / h3 >
< p > Implement this function to return the height of your item. The < em > lb< / em > parameter is the same as < a href = "#listBox" > listBox< / a > () and is provided for
convenience and compatibility.
< p > The default implementation returns
< a href = "ntqapplication.html#globalStrut" > TQApplication::globalStrut< / a > ()'s height.
< p > < p > See also < a href = "#paint" > paint< / a > () and < a href = "#width" > width< / a > ().
< p > Reimplemented in < a href = "qlistboxtext.html#height" > TQListBoxText< / a > and < a href = "qlistboxpixmap.html#height" > TQListBoxPixmap< / a > .
< h3 class = fn > bool < a name = "isCurrent" > < / a > TQListBoxItem::isCurrent () const
< / h3 >
Returns TRUE if the item is the current item; otherwise returns
FALSE.
< p > < p > See also < a href = "ntqlistbox.html#currentItem-prop" > TQListBox::currentItem< / a > , < a href = "ntqlistbox.html#item" > TQListBox::item< / a > (), and < a href = "#isSelected" > isSelected< / a > ().
< h3 class = fn > bool < a name = "isSelectable" > < / a > TQListBoxItem::isSelectable () const
< / h3 >
Returns TRUE if this item is selectable (the default); otherwise
returns FALSE.
< p > < p > See also < a href = "#setSelectable" > setSelectable< / a > ().
< h3 class = fn > bool < a name = "isSelected" > < / a > TQListBoxItem::isSelected () const
< / h3 >
< p > Returns TRUE if the item is selected; otherwise returns FALSE.
< p > < p > See also < a href = "ntqlistbox.html#isSelected" > TQListBox::isSelected< / a > () and < a href = "#isCurrent" > isCurrent< / a > ().
< p > Example: < a href = "listboxcombo-example.html#x1409" > listboxcombo/listboxcombo.cpp< / a > .
< h3 class = fn > < a href = "ntqlistbox.html" > TQListBox< / a > * < a name = "listBox" > < / a > TQListBoxItem::listBox () const
< / h3 >
Returns a pointer to the list box containing this item.
< h3 class = fn > < a href = "qlistboxitem.html" > TQListBoxItem< / a > * < a name = "next" > < / a > TQListBoxItem::next () const
< / h3 >
Returns the item that comes after this in the list box. If this is
the last item, 0 is returned.
< p > < p > See also < a href = "#prev" > prev< / a > ().
< h3 class = fn > void < a name = "paint" > < / a > TQListBoxItem::paint ( < a href = "tqpainter.html" > TQPainter< / a > * p )< tt > [pure virtual protected]< / tt >
< / h3 >
< p > Implement this function to draw your item. The painter, < em > p< / em > , is
already open for painting.
< p > < p > See also < a href = "#height" > height< / a > () and < a href = "#width" > width< / a > ().
< p > Example: < a href = "listboxcombo-example.html#x1410" > listboxcombo/listboxcombo.cpp< / a > .
< p > Reimplemented in < a href = "qlistboxtext.html#paint" > TQListBoxText< / a > and < a href = "qlistboxpixmap.html#paint" > TQListBoxPixmap< / a > .
< h3 class = fn > const < a href = "ntqpixmap.html" > TQPixmap< / a > * < a name = "pixmap" > < / a > TQListBoxItem::pixmap () const< tt > [virtual]< / tt >
< / h3 >
Returns the pixmap associated with the item, or 0 if there isn't
one.
< p > The default implementation returns 0.
< p > Example: < a href = "listboxcombo-example.html#x1411" > listboxcombo/listboxcombo.cpp< / a > .
< p > Reimplemented in < a href = "qlistboxpixmap.html#pixmap" > TQListBoxPixmap< / a > .
< h3 class = fn > < a href = "qlistboxitem.html" > TQListBoxItem< / a > * < a name = "prev" > < / a > TQListBoxItem::prev () const
< / h3 >
Returns the item which comes before this in the list box. If this
is the first item, 0 is returned.
< p > < p > See also < a href = "#next" > next< / a > ().
< h3 class = fn > int < a name = "rtti" > < / a > TQListBoxItem::rtti () const< tt > [virtual]< / tt >
< / h3 >
Returns 0.
< p > Make your derived classes return their own values for < a href = "#rtti" > rtti< / a > (), and
you can distinguish between listbox items. You should use values
greater than 1000 preferably a large random number, to allow for
extensions to this class.
< h3 class = fn > bool < a name = "selected" > < / a > TQListBoxItem::selected () const
< / h3 >
< b > This function is obsolete.< / b > It is provided to keep old source working. We strongly advise against using it in new code.
< p >
< h3 class = fn > void < a name = "setCustomHighlighting" > < / a > TQListBoxItem::setCustomHighlighting ( bool b )< tt > [protected]< / tt >
< / h3 >
Defines whether the list box item is responsible for drawing
itself in a highlighted state when being selected.
< p > If < em > b< / em > is FALSE (the default), the list box will draw some
default highlight indicator before calling < a href = "#paint" > paint< / a > ().
< p > < p > See also < a href = "#selected" > selected< / a > () and < a href = "#paint" > paint< / a > ().
< h3 class = fn > void < a name = "setSelectable" > < / a > TQListBoxItem::setSelectable ( bool b )
< / h3 >
If < em > b< / em > is TRUE (the default) then this item can be selected by
the user; otherwise this item cannot be selected by the user.
< p > < p > See also < a href = "#isSelectable" > isSelectable< / a > ().
< h3 class = fn > void < a name = "setText" > < / a > TQListBoxItem::setText ( const < a href = "tqstring.html" > TQString< / a > & text )< tt > [virtual protected]< / tt >
< / h3 >
< p > Sets the text of the TQListBoxItem to < em > text< / em > . This < em > text< / em > is also
used for sorting. The text is not shown unless explicitly drawn in
< a href = "#paint" > paint< / a > ().
< p > < p > See also < a href = "#text" > text< / a > ().
< h3 class = fn > < a href = "tqstring.html" > TQString< / a > < a name = "text" > < / a > TQListBoxItem::text () const< tt > [virtual]< / tt >
< / h3 >
Returns the text of the item. This text is also used for sorting.
< p > < p > See also < a href = "#setText" > setText< / a > ().
< p > Example: < a href = "listboxcombo-example.html#x1412" > listboxcombo/listboxcombo.cpp< / a > .
< h3 class = fn > int < a name = "width" > < / a > TQListBoxItem::width ( const < a href = "ntqlistbox.html" > TQListBox< / a > * lb ) const< tt > [virtual]< / tt >
< / h3 >
< p > Reimplement this function to return the width of your item. The < em > lb< / em > parameter is the same as < a href = "#listBox" > listBox< / a > () and is provided for
convenience and compatibility.
< p > The default implementation returns
< a href = "ntqapplication.html#globalStrut" > TQApplication::globalStrut< / a > ()'s width.
< p > < p > See also < a href = "#paint" > paint< / a > () and < a href = "#height" > height< / a > ().
< p > Reimplemented in < a href = "qlistboxtext.html#width" > TQListBoxText< / a > and < a href = "qlistboxpixmap.html#width" > TQListBoxPixmap< / a > .
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