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1164 lines
77 KiB
1164 lines
77 KiB
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/widgets/qlistbox.cpp:805 -->
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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>TQListBox Class Reference</h1>
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<p>The TQListBox widget provides a list of selectable, read-only items.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qlistbox-h.html">ntqlistbox.h</a>></tt>
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<p>Inherits <a href="ntqscrollview.html">TQScrollView</a>.
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<p><a href="qlistbox-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="#TQListBox"><b>TQListBox</b></a> ( TQWidget * parent = 0, const char * name = 0, WFlags f = 0 )</li>
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<li class=fn><a href="#~TQListBox"><b>~TQListBox</b></a> ()</li>
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<li class=fn>uint <a href="#count"><b>count</b></a> () const</li>
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<li class=fn>void <a href="#insertStringList"><b>insertStringList</b></a> ( const TQStringList & list, int index = -1 )</li>
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<li class=fn>void <a href="#insertStrList"><b>insertStrList</b></a> ( const TQStrList * list, int index = -1 )</li>
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<li class=fn>void <a href="#insertStrList-2"><b>insertStrList</b></a> ( const TQStrList & list, int index = -1 )</li>
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<li class=fn>void <a href="#insertStrList-3"><b>insertStrList</b></a> ( const char ** strings, int numStrings = -1, int index = -1 )</li>
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<li class=fn>void <a href="#insertItem"><b>insertItem</b></a> ( const TQListBoxItem * lbi, int index = -1 )</li>
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<li class=fn>void <a href="#insertItem-2"><b>insertItem</b></a> ( const TQListBoxItem * lbi, const TQListBoxItem * after )</li>
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<li class=fn>void <a href="#insertItem-3"><b>insertItem</b></a> ( const TQString & text, int index = -1 )</li>
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<li class=fn>void <a href="#insertItem-4"><b>insertItem</b></a> ( const TQPixmap & pixmap, int index = -1 )</li>
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<li class=fn>void <a href="#insertItem-5"><b>insertItem</b></a> ( const TQPixmap & pixmap, const TQString & text, int index = -1 )</li>
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<li class=fn>void <a href="#removeItem"><b>removeItem</b></a> ( int index )</li>
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<li class=fn>TQString <a href="#text"><b>text</b></a> ( int index ) const</li>
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<li class=fn>const TQPixmap * <a href="#pixmap"><b>pixmap</b></a> ( int index ) const</li>
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<li class=fn>void <a href="#changeItem"><b>changeItem</b></a> ( const TQListBoxItem * lbi, int index )</li>
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<li class=fn>void <a href="#changeItem-2"><b>changeItem</b></a> ( const TQString & text, int index )</li>
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<li class=fn>void <a href="#changeItem-3"><b>changeItem</b></a> ( const TQPixmap & pixmap, int index )</li>
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<li class=fn>void <a href="#changeItem-4"><b>changeItem</b></a> ( const TQPixmap & pixmap, const TQString & text, int index )</li>
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<li class=fn>void <a href="#takeItem"><b>takeItem</b></a> ( const TQListBoxItem * item )</li>
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<li class=fn>int <a href="#numItemsVisible"><b>numItemsVisible</b></a> () const</li>
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<li class=fn>int <a href="#currentItem"><b>currentItem</b></a> () const</li>
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<li class=fn>TQString <a href="#currentText"><b>currentText</b></a> () const</li>
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<li class=fn>virtual void <a href="#setCurrentItem"><b>setCurrentItem</b></a> ( int index )</li>
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<li class=fn>virtual void <a href="#setCurrentItem-2"><b>setCurrentItem</b></a> ( TQListBoxItem * i )</li>
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<li class=fn>void centerCurrentItem () <em>(obsolete)</em></li>
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<li class=fn>int <a href="#topItem"><b>topItem</b></a> () const</li>
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<li class=fn>virtual void <a href="#setTopItem"><b>setTopItem</b></a> ( int index )</li>
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<li class=fn>virtual void <a href="#setBottomItem"><b>setBottomItem</b></a> ( int index )</li>
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<li class=fn>long <a href="#maxItemWidth"><b>maxItemWidth</b></a> () const</li>
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<li class=fn>enum <a href="#SelectionMode-enum"><b>SelectionMode</b></a> { Single, Multi, Extended, NoSelection }</li>
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<li class=fn>virtual void <a href="#setSelectionMode"><b>setSelectionMode</b></a> ( SelectionMode )</li>
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<li class=fn>SelectionMode <a href="#selectionMode"><b>selectionMode</b></a> () const</li>
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<li class=fn>void setMultiSelection ( bool multi ) <em>(obsolete)</em></li>
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<li class=fn>bool isMultiSelection () const <em>(obsolete)</em></li>
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<li class=fn>virtual void <a href="#setSelected"><b>setSelected</b></a> ( TQListBoxItem * item, bool select )</li>
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<li class=fn>void <a href="#setSelected-2"><b>setSelected</b></a> ( int index, bool select )</li>
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<li class=fn>bool <a href="#isSelected"><b>isSelected</b></a> ( int i ) const</li>
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<li class=fn>bool <a href="#isSelected-2"><b>isSelected</b></a> ( const TQListBoxItem * i ) const</li>
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<li class=fn>TQListBoxItem * <a href="#selectedItem"><b>selectedItem</b></a> () const</li>
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<li class=fn>TQListBoxItem * <a href="#item"><b>item</b></a> ( int index ) const</li>
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<li class=fn>int <a href="#index"><b>index</b></a> ( const TQListBoxItem * lbi ) const</li>
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<li class=fn>TQListBoxItem * <a href="#findItem"><b>findItem</b></a> ( const TQString & text, ComparisonFlags compare = BeginsWith ) const</li>
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<li class=fn>void <a href="#triggerUpdate"><b>triggerUpdate</b></a> ( bool doLayout )</li>
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<li class=fn>bool <a href="#itemVisible"><b>itemVisible</b></a> ( int index )</li>
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<li class=fn>bool <a href="#itemVisible-2"><b>itemVisible</b></a> ( const TQListBoxItem * item )</li>
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<li class=fn>enum <a href="#LayoutMode-enum"><b>LayoutMode</b></a> { FixedNumber, FitToWidth, FitToHeight = FitToWidth, Variable }</li>
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<li class=fn>virtual void <a href="#setColumnMode"><b>setColumnMode</b></a> ( LayoutMode )</li>
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<li class=fn>virtual void <a href="#setColumnMode-2"><b>setColumnMode</b></a> ( int )</li>
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<li class=fn>virtual void <a href="#setRowMode"><b>setRowMode</b></a> ( LayoutMode )</li>
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<li class=fn>virtual void <a href="#setRowMode-2"><b>setRowMode</b></a> ( int )</li>
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<li class=fn>LayoutMode <a href="#columnMode"><b>columnMode</b></a> () const</li>
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<li class=fn>LayoutMode <a href="#rowMode"><b>rowMode</b></a> () const</li>
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<li class=fn>int <a href="#numColumns"><b>numColumns</b></a> () const</li>
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<li class=fn>int <a href="#numRows"><b>numRows</b></a> () const</li>
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<li class=fn>bool <a href="#variableWidth"><b>variableWidth</b></a> () const</li>
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<li class=fn>virtual void <a href="#setVariableWidth"><b>setVariableWidth</b></a> ( bool )</li>
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<li class=fn>bool <a href="#variableHeight"><b>variableHeight</b></a> () const</li>
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<li class=fn>virtual void <a href="#setVariableHeight"><b>setVariableHeight</b></a> ( bool )</li>
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<li class=fn>bool autoScrollBar () const <em>(obsolete)</em></li>
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<li class=fn>void setAutoScrollBar ( bool enable ) <em>(obsolete)</em></li>
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<li class=fn>bool scrollBar () const <em>(obsolete)</em></li>
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<li class=fn>void setScrollBar ( bool enable ) <em>(obsolete)</em></li>
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<li class=fn>bool autoBottomScrollBar () const <em>(obsolete)</em></li>
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<li class=fn>void setAutoBottomScrollBar ( bool enable ) <em>(obsolete)</em></li>
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<li class=fn>bool bottomScrollBar () const <em>(obsolete)</em></li>
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<li class=fn>void setBottomScrollBar ( bool enable ) <em>(obsolete)</em></li>
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<li class=fn>int inSort ( const TQListBoxItem * lbi ) <em>(obsolete)</em></li>
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<li class=fn>int inSort ( const TQString & text ) <em>(obsolete)</em></li>
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<li class=fn>int cellHeight ( int i ) const <em>(obsolete)</em></li>
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<li class=fn>int cellHeight () const <em>(obsolete)</em></li>
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<li class=fn>int cellWidth () const <em>(obsolete)</em></li>
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<li class=fn>int numCols () const <em>(obsolete)</em></li>
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<li class=fn>int <a href="#itemHeight"><b>itemHeight</b></a> ( int index = 0 ) const</li>
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<li class=fn>TQListBoxItem * <a href="#itemAt"><b>itemAt</b></a> ( const TQPoint & p ) const</li>
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<li class=fn>TQRect <a href="#itemRect"><b>itemRect</b></a> ( TQListBoxItem * item ) const</li>
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<li class=fn>TQListBoxItem * <a href="#firstItem"><b>firstItem</b></a> () const</li>
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<li class=fn>void <a href="#sort"><b>sort</b></a> ( bool ascending = TRUE )</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="#clear"><b>clear</b></a> ()</li>
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<li class=fn>virtual void <a href="#ensureCurrentVisible"><b>ensureCurrentVisible</b></a> ()</li>
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<li class=fn>virtual void <a href="#clearSelection"><b>clearSelection</b></a> ()</li>
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<li class=fn>virtual void <a href="#selectAll"><b>selectAll</b></a> ( bool select )</li>
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<li class=fn>virtual void <a href="#invertSelection"><b>invertSelection</b></a> ()</li>
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</ul>
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<h2>Signals</h2>
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<ul>
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<li class=fn>void <a href="#highlighted"><b>highlighted</b></a> ( int index )</li>
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<li class=fn>void <a href="#selected"><b>selected</b></a> ( int index )</li>
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<li class=fn>void <a href="#highlighted-2"><b>highlighted</b></a> ( const TQString & )</li>
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<li class=fn>void <a href="#selected-2"><b>selected</b></a> ( const TQString & )</li>
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<li class=fn>void <a href="#highlighted-3"><b>highlighted</b></a> ( TQListBoxItem * )</li>
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<li class=fn>void <a href="#selected-3"><b>selected</b></a> ( TQListBoxItem * )</li>
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<li class=fn>void <a href="#selectionChanged"><b>selectionChanged</b></a> ()</li>
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<li class=fn>void <a href="#selectionChanged-2"><b>selectionChanged</b></a> ( TQListBoxItem * item )</li>
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<li class=fn>void <a href="#currentChanged"><b>currentChanged</b></a> ( TQListBoxItem * item )</li>
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<li class=fn>void <a href="#clicked"><b>clicked</b></a> ( TQListBoxItem * item )</li>
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<li class=fn>void <a href="#clicked-2"><b>clicked</b></a> ( TQListBoxItem * item, const TQPoint & pnt )</li>
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<li class=fn>void <a href="#pressed"><b>pressed</b></a> ( TQListBoxItem * item )</li>
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<li class=fn>void <a href="#pressed-2"><b>pressed</b></a> ( TQListBoxItem * item, const TQPoint & pnt )</li>
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<li class=fn>void <a href="#doubleClicked"><b>doubleClicked</b></a> ( TQListBoxItem * item )</li>
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<li class=fn>void <a href="#returnPressed"><b>returnPressed</b></a> ( TQListBoxItem * )</li>
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<li class=fn>void <a href="#rightButtonClicked"><b>rightButtonClicked</b></a> ( TQListBoxItem *, const TQPoint & )</li>
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<li class=fn>void <a href="#rightButtonPressed"><b>rightButtonPressed</b></a> ( TQListBoxItem *, const TQPoint & )</li>
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<li class=fn>void <a href="#mouseButtonPressed"><b>mouseButtonPressed</b></a> ( int button, TQListBoxItem * item, const TQPoint & pos )</li>
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<li class=fn>void <a href="#mouseButtonClicked"><b>mouseButtonClicked</b></a> ( int button, TQListBoxItem * item, const TQPoint & pos )</li>
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<li class=fn>void <a href="#contextMenuRequested"><b>contextMenuRequested</b></a> ( TQListBoxItem * item, const TQPoint & pos )</li>
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<li class=fn>void <a href="#onItem"><b>onItem</b></a> ( TQListBoxItem * i )</li>
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<li class=fn>void <a href="#onViewport"><b>onViewport</b></a> ()</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>LayoutMode <a href="#columnMode-prop"><b>columnMode</b></a> - the column layout mode for this list box</li>
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<li class=fn>uint <a href="#count-prop"><b>count</b></a> - the number of items in the list box <em>(read only)</em></li>
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<li class=fn>int <a href="#currentItem-prop"><b>currentItem</b></a> - the current highlighted item</li>
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<li class=fn>TQString <a href="#currentText-prop"><b>currentText</b></a> - the text of the current item <em>(read only)</em></li>
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<li class=fn>bool multiSelection - whether or not the list box is in Multi selection mode <em>(obsolete)</em></li>
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<li class=fn>int <a href="#numColumns-prop"><b>numColumns</b></a> - the number of columns in the list box <em>(read only)</em></li>
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<li class=fn>int <a href="#numItemsVisible-prop"><b>numItemsVisible</b></a> - the number of visible items <em>(read only)</em></li>
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<li class=fn>int <a href="#numRows-prop"><b>numRows</b></a> - the number of rows in the list box <em>(read only)</em></li>
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<li class=fn>LayoutMode <a href="#rowMode-prop"><b>rowMode</b></a> - the row layout mode for this list box</li>
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<li class=fn>SelectionMode <a href="#selectionMode-prop"><b>selectionMode</b></a> - the selection mode of the list box</li>
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<li class=fn>int <a href="#topItem-prop"><b>topItem</b></a> - the index of an item at the top of the screen</li>
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<li class=fn>bool <a href="#variableHeight-prop"><b>variableHeight</b></a> - whether this list box has variable-height rows</li>
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<li class=fn>bool <a href="#variableWidth-prop"><b>variableWidth</b></a> - whether this list box has variable-width columns</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="#updateItem"><b>updateItem</b></a> ( int index )</li>
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<li class=fn>void <a href="#updateItem-2"><b>updateItem</b></a> ( TQListBoxItem * i )</li>
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<li class=fn>int totalWidth () const <em>(obsolete)</em></li>
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<li class=fn>int totalHeight () const <em>(obsolete)</em></li>
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<li class=fn>virtual void <a href="#paintCell"><b>paintCell</b></a> ( TQPainter * p, int row, int col )</li>
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<li class=fn>void <a href="#toggleCurrentItem"><b>toggleCurrentItem</b></a> ()</li>
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<li class=fn>bool <a href="#isRubberSelecting"><b>isRubberSelecting</b></a> () const</li>
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<li class=fn>void <a href="#doLayout"><b>doLayout</b></a> () const</li>
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<li class=fn>bool itemYPos ( int index, int * yPos ) const <em>(obsolete)</em></li>
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<li class=fn>int findItem ( int yPos ) const <em>(obsolete)</em></li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The TQListBox widget provides a list of selectable, read-only items.
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<p>
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<p> This is typically a single-column list in which either no item or
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one item is selected, but it can also be used in many other ways.
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<p> TQListBox will add scroll bars as necessary, but it isn't intended
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for <em>really</em> big lists. If you want more than a few thousand
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items, it's probably better to use a different widget mainly
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because the scroll bars won't provide very good navigation, but
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also because TQListBox may become slow with huge lists. (See
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<a href="ntqlistview.html">TQListView</a> and <a href="ntqtable.html">TQTable</a> for possible alternatives.)
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<p> There are a variety of selection modes described in the
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TQListBox::SelectionMode documentation. The default is <a href="#SelectionMode-enum">Single</a>
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selection mode, but you can change it using <a href="#setSelectionMode">setSelectionMode</a>().
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(<a href="#setMultiSelection">setMultiSelection</a>() is still provided for compatibility with TQt
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1.x. We recommend using setSelectionMode() in all code.)
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<p> Because TQListBox offers multiple selection it must display
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<a href="focus.html#keyboard-focus">keyboard focus</a> and selection state separately. Therefore there are
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functions both to set the selection state of an item, i.e.
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<a href="#setSelected">setSelected</a>(), and to set which item displays keyboard focus, i.e.
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<a href="#setCurrentItem">setCurrentItem</a>().
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<p> The list box normally arranges its items in a single column and
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adds a vertical scroll bar if required. It is possible to have a
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different fixed number of columns (<a href="#setColumnMode">setColumnMode</a>()), or as many
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columns as will fit in the list box's assigned screen space
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(setColumnMode(FitToWidth)), or to have a fixed number of rows
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(<a href="#setRowMode">setRowMode</a>()) or as many rows as will fit in the list box's
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assigned screen space (setRowMode(FitToHeight)). In all these
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cases TQListBox will add scroll bars, as appropriate, in at least
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one direction.
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<p> If multiple rows are used, each row can be as high as necessary
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(the normal setting), or you can request that all items will have
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the same height by calling <a href="#setVariableHeight">setVariableHeight</a>(FALSE). The same
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applies to a column's width, see <a href="#setVariableWidth">setVariableWidth</a>().
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<p> The TQListBox's items are <a href="qlistboxitem.html">TQListBoxItem</a> objects. TQListBox provides
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methods to insert new items as strings, as pixmaps, and as
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TQListBoxItem * (<a href="#insertItem">insertItem</a>() with various arguments), and to
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replace an existing item with a new string, pixmap or TQListBoxItem
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(<a href="#changeItem">changeItem</a>() with various arguments). You can also remove items
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singly with <a href="#removeItem">removeItem</a>() or <a href="#clear">clear</a>() the entire list box. Note that
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if you create a TQListBoxItem yourself and insert it, TQListBox
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takes ownership of the item.
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<p> You can also create a TQListBoxItem, such as <a href="qlistboxtext.html">TQListBoxText</a> or
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<a href="qlistboxpixmap.html">TQListBoxPixmap</a>, with the list box as first parameter. The item
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will then append itself. When you delete an item it is
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automatically removed from the list box.
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<p> The list of items can be arbitrarily large; TQListBox will add
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scroll bars if necessary. TQListBox can display a single-column
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(the common case) or multiple-columns, and offers both single and
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multiple selection. TQListBox does not support multiple-column
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items (but <a href="ntqlistview.html">TQListView</a> and <a href="ntqtable.html">TQTable</a> do), or tree hierarchies (but
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TQListView does).
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<p> The list box items can be accessed both as <a href="qlistboxitem.html">TQListBoxItem</a> objects
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(recommended) and using integer indexes (the original TQListBox
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implementation used an array of strings internally, and the API
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still supports this mode of operation). Everything can be done
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using the new objects, and most things can be done using indexes.
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<p> Each item in a TQListBox contains a TQListBoxItem. One of the items
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can be the current item. The <a href="#currentChanged">currentChanged</a>() signal and the
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<a href="#highlighted">highlighted</a>() signal are emitted when a new item becomes current,
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e.g. because the user clicks on it or <a href="#setCurrentItem">TQListBox::setCurrentItem</a>()
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is called. The <a href="#selected">selected</a>() signal is emitted when the user
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double-clicks on an item or presses Enter on the current item.
|
|
<p> If the user does not select anything, no signals are emitted and
|
|
<a href="#currentItem">currentItem</a>() returns -1.
|
|
<p> A list box has <a href="ntqwidget.html#FocusPolicy-enum">WheelFocus</a> as a default <a href="ntqwidget.html#focusPolicy">focusPolicy</a>(), i.e. it
|
|
can get keyboard focus by tabbing, clicking and through the use of
|
|
the mouse wheel.
|
|
<p> New items can be inserted using <a href="#insertItem">insertItem</a>(), <a href="#insertStrList">insertStrList</a>() or
|
|
<a href="#insertStringList">insertStringList</a>(). <a href="#inSort">inSort</a>() is obsolete because this method is
|
|
quite inefficient. It's preferable to insert the items normally
|
|
and call <a href="#sort">sort</a>() afterwards, or to insert a sorted <a href="ntqstringlist.html">TQStringList</a>().
|
|
<p> By default, vertical and horizontal scroll bars are added and
|
|
removed as necessary. <a href="ntqscrollview.html#setHScrollBarMode">setHScrollBarMode</a>() and <a href="ntqscrollview.html#setVScrollBarMode">setVScrollBarMode</a>()
|
|
can be used to change this policy.
|
|
<p> If you need to insert types other than strings and pixmaps, you
|
|
must define new classes which inherit <a href="qlistboxitem.html">TQListBoxItem</a>.
|
|
<p> <b>Warning:</b> The list box assumes ownership of all list box items and
|
|
will delete them when it does not need them any more.
|
|
<p> <img src=qlistbox-m.png> <img src=qlistbox-w.png>
|
|
<p> <p>See also <a href="ntqlistview.html">TQListView</a>, <a href="ntqcombobox.html">TQComboBox</a>, <a href="ntqbuttongroup.html">TQButtonGroup</a>, <a href="guibooks.html#fowler">GUI Design Handbook: List Box (two
|
|
sections)</a>, and <a href="advanced.html">Advanced Widgets</a>.
|
|
|
|
<hr><h2>Member Type Documentation</h2>
|
|
<h3 class=fn><a name="LayoutMode-enum"></a>TQListBox::LayoutMode</h3>
|
|
|
|
<p> This enum type is used to specify how TQListBox lays out its rows
|
|
and columns.
|
|
<ul>
|
|
<li><tt>TQListBox::FixedNumber</tt> - There is a fixed number of rows (or columns).
|
|
<li><tt>TQListBox::FitToWidth</tt> - There are as many columns as will fit
|
|
on-screen.
|
|
<li><tt>TQListBox::FitToHeight</tt> - There are as many rows as will fit on-screen.
|
|
<li><tt>TQListBox::Variable</tt> - There are as many rows as are required by the
|
|
column mode. (Or as many columns as required by the row mode.)
|
|
</ul><p> Example: When you call <a href="#setRowMode">setRowMode</a>( FitToHeight ), <a href="#columnMode">columnMode</a>()
|
|
automatically becomes <a href="#LayoutMode-enum">Variable</a> to accommodate the row mode
|
|
you've set.
|
|
|
|
<h3 class=fn><a name="SelectionMode-enum"></a>TQListBox::SelectionMode</h3>
|
|
|
|
<p> This enumerated type is used by TQListBox to indicate how it reacts
|
|
to selection by the user.
|
|
<ul>
|
|
<li><tt>TQListBox::Single</tt> - When the user selects an item, any already-selected
|
|
item becomes unselected and the user cannot unselect the selected
|
|
item. This means that the user can never clear the selection, even
|
|
though the selection may be cleared by the application programmer
|
|
using <a href="#clearSelection">TQListBox::clearSelection</a>().
|
|
<li><tt>TQListBox::Multi</tt> - When the user selects an item the selection status
|
|
of that item is toggled and the other items are left alone. Also,
|
|
multiple items can be selected by dragging the mouse while the
|
|
left mouse button is kept pressed.
|
|
<li><tt>TQListBox::Extended</tt> - When the user selects an item the selection is
|
|
cleared and the new item selected. However, if the user presses
|
|
the Ctrl key when clicking on an item, the clicked item gets
|
|
toggled and all other items are left untouched. And if the user
|
|
presses the Shift key while clicking on an item, all items between
|
|
the current item and the clicked item get selected or unselected,
|
|
depending on the state of the clicked item. Also, multiple items
|
|
can be selected by dragging the mouse while the left mouse button
|
|
is kept pressed.
|
|
<li><tt>TQListBox::NoSelection</tt> - Items cannot be selected.
|
|
</ul><p> In other words, <a href="#SelectionMode-enum">Single</a> is a real single-selection list box, <a href="#SelectionMode-enum">Multi</a> is a real multi-selection list box, <a href="#SelectionMode-enum">Extended</a> is a list
|
|
box in which users can select multiple items but usually want to
|
|
select either just one or a range of contiguous items, and <a href="#SelectionMode-enum">NoSelection</a> is for a list box where the user can look but not
|
|
touch.
|
|
|
|
<hr><h2>Member Function Documentation</h2>
|
|
<h3 class=fn><a name="TQListBox"></a>TQListBox::TQListBox ( <a href="ntqwidget.html">TQWidget</a> * parent = 0, const char * name = 0, WFlags f = 0 )
|
|
</h3>
|
|
Constructs a new empty list box called <em>name</em> and with parent <em>parent</em>.
|
|
<p> Performance is boosted by modifying the widget flags <em>f</em> so that
|
|
only part of the <a href="qlistboxitem.html">TQListBoxItem</a> children is redrawn. This may be
|
|
unsuitable for custom TQListBoxItem classes, in which case <a href="ntqt.html#WidgetFlags-enum">WStaticContents</a> and <a href="ntqt.html#WidgetFlags-enum">WNoAutoErase</a> should be cleared
|
|
immediately after construction.
|
|
<p> <p>See also <a href="ntqwidget.html#clearWFlags">TQWidget::clearWFlags</a>() and <a href="ntqt.html#WidgetFlags-enum">TQt::WidgetFlags</a>.
|
|
|
|
<h3 class=fn><a name="~TQListBox"></a>TQListBox::~TQListBox ()
|
|
</h3>
|
|
Destroys the list box. Deletes all list box items.
|
|
|
|
<h3 class=fn>bool <a name="autoBottomScrollBar"></a>TQListBox::autoBottomScrollBar () const
|
|
</h3>
|
|
|
|
<p> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
|
|
<p> Returns TRUE if <a href="ntqscrollview.html#hScrollBarMode">hScrollBarMode</a>() is <a href="ntqscrollview.html#ScrollBarMode-enum">Auto</a>; otherwise returns
|
|
FALSE.
|
|
|
|
<h3 class=fn>bool <a name="autoScrollBar"></a>TQListBox::autoScrollBar () const
|
|
</h3>
|
|
|
|
<p> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
|
|
<p> Returns TRUE if <a href="ntqscrollview.html#vScrollBarMode">vScrollBarMode</a>() is <a href="ntqscrollview.html#ScrollBarMode-enum">Auto</a>; otherwise returns
|
|
FALSE.
|
|
|
|
<h3 class=fn>bool <a name="bottomScrollBar"></a>TQListBox::bottomScrollBar () const
|
|
</h3>
|
|
|
|
<p> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
|
|
<p> Returns FALSE if <a href="ntqscrollview.html#vScrollBarMode">vScrollBarMode</a>() is <a href="ntqscrollview.html#ScrollBarMode-enum">AlwaysOff</a>; otherwise
|
|
returns TRUE.
|
|
|
|
<h3 class=fn>int <a name="cellHeight"></a>TQListBox::cellHeight ( int i ) 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>
|
|
Returns the item height of item <em>i</em>.
|
|
<p>See also <a href="#itemHeight">itemHeight</a>().
|
|
|
|
<h3 class=fn>int <a name="cellHeight-2"></a>TQListBox::cellHeight () 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> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Returns the item height of the first item, item 0.
|
|
<p>See also <a href="#itemHeight">itemHeight</a>().
|
|
|
|
<h3 class=fn>int <a name="cellWidth"></a>TQListBox::cellWidth () 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>
|
|
Returns the maximum item width.
|
|
<p>See also <a href="#maxItemWidth">maxItemWidth</a>().
|
|
|
|
<h3 class=fn>void <a name="centerCurrentItem"></a>TQListBox::centerCurrentItem ()
|
|
</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> This function does exactly the same as <a href="#ensureCurrentVisible">ensureCurrentVisible</a>()
|
|
<p> <p>See also <a href="#ensureCurrentVisible">TQListBox::ensureCurrentVisible</a>().
|
|
|
|
<h3 class=fn>void <a name="changeItem"></a>TQListBox::changeItem ( const <a href="qlistboxitem.html">TQListBoxItem</a> * lbi, int index )
|
|
</h3>
|
|
Replaces the item at position <em>index</em> with <em>lbi</em>. If <em>index</em> is
|
|
negative or too large, <a href="#changeItem">changeItem</a>() does nothing.
|
|
<p> The item that has been changed will become selected.
|
|
<p> <p>See also <a href="#insertItem">insertItem</a>() and <a href="#removeItem">removeItem</a>().
|
|
|
|
<h3 class=fn>void <a name="changeItem-2"></a>TQListBox::changeItem ( const <a href="ntqstring.html">TQString</a> & text, int index )
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Replaces the item at position <em>index</em> with a new list box text
|
|
item with text <em>text</em>.
|
|
<p> The operation is ignored if <em>index</em> is out of range.
|
|
<p> <p>See also <a href="#insertItem">insertItem</a>() and <a href="#removeItem">removeItem</a>().
|
|
|
|
<h3 class=fn>void <a name="changeItem-3"></a>TQListBox::changeItem ( const <a href="ntqpixmap.html">TQPixmap</a> & pixmap, int index )
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Replaces the item at position <em>index</em> with a new list box pixmap
|
|
item with pixmap <em>pixmap</em>.
|
|
<p> The operation is ignored if <em>index</em> is out of range.
|
|
<p> <p>See also <a href="#insertItem">insertItem</a>() and <a href="#removeItem">removeItem</a>().
|
|
|
|
<h3 class=fn>void <a name="changeItem-4"></a>TQListBox::changeItem ( const <a href="ntqpixmap.html">TQPixmap</a> & pixmap, const <a href="ntqstring.html">TQString</a> & text, int index )
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Replaces the item at position <em>index</em> with a new list box pixmap
|
|
item with pixmap <em>pixmap</em> and text <em>text</em>.
|
|
<p> The operation is ignored if <em>index</em> is out of range.
|
|
<p> <p>See also <a href="#insertItem">insertItem</a>() and <a href="#removeItem">removeItem</a>().
|
|
|
|
<h3 class=fn>void <a name="clear"></a>TQListBox::clear ()<tt> [slot]</tt>
|
|
</h3>
|
|
Deletes all the items in the list.
|
|
<p> <p>See also <a href="#removeItem">removeItem</a>().
|
|
|
|
<h3 class=fn>void <a name="clearSelection"></a>TQListBox::clearSelection ()<tt> [virtual slot]</tt>
|
|
</h3>
|
|
Deselects all items, if possible.
|
|
<p> Note that a <a href="#SelectionMode-enum">Single</a> selection list box will automatically select
|
|
an item if it has <a href="focus.html#keyboard-focus">keyboard focus</a>.
|
|
|
|
<p>Example: <a href="listbox-example.html#x1432">listbox/listbox.cpp</a>.
|
|
<h3 class=fn>void <a name="clicked"></a>TQListBox::clicked ( <a href="qlistboxitem.html">TQListBoxItem</a> * item )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when the user clicks any mouse button. If
|
|
<em>item</em> is not 0, the cursor is on <em>item</em>. If <em>item</em> is 0, the
|
|
mouse cursor isn't on any item.
|
|
<p> Note that you must not delete any <a href="qlistboxitem.html">TQListBoxItem</a> objects in slots
|
|
connected to this signal.
|
|
|
|
<h3 class=fn>void <a name="clicked-2"></a>TQListBox::clicked ( <a href="qlistboxitem.html">TQListBoxItem</a> * item, const <a href="ntqpoint.html">TQPoint</a> & pnt )<tt> [signal]</tt>
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> This signal is emitted when the user clicks any mouse button. If
|
|
<em>item</em> is not 0, the cursor is on <em>item</em>. If <em>item</em> is 0, the
|
|
mouse cursor isn't on any item.
|
|
<p> <em>pnt</em> is the position of the mouse cursor in the global
|
|
coordinate system (<a href="qmouseevent.html#globalPos">TQMouseEvent::globalPos</a>()). (If the click's
|
|
press and release differs by a pixel or two, <em>pnt</em> is the
|
|
position at release time.)
|
|
<p> Note that you must not delete any <a href="qlistboxitem.html">TQListBoxItem</a> objects in slots
|
|
connected to this signal.
|
|
|
|
<h3 class=fn><a href="ntqlistbox.html#LayoutMode-enum">LayoutMode</a> <a name="columnMode"></a>TQListBox::columnMode () const
|
|
</h3><p>Returns the column layout mode for this list box.
|
|
See the <a href="ntqlistbox.html#columnMode-prop">"columnMode"</a> property for details.
|
|
<h3 class=fn>void <a name="contextMenuRequested"></a>TQListBox::contextMenuRequested ( <a href="qlistboxitem.html">TQListBoxItem</a> * item, const <a href="ntqpoint.html">TQPoint</a> & pos )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when the user invokes a context menu with
|
|
the right mouse button or with special system keys, with <em>item</em>
|
|
being the item under the mouse cursor or the current item,
|
|
respectively.
|
|
<p> <em>pos</em> is the position for the context menu in the global
|
|
coordinate system.
|
|
|
|
<h3 class=fn>uint <a name="count"></a>TQListBox::count () const
|
|
</h3><p>Returns the number of items in the list box.
|
|
See the <a href="ntqlistbox.html#count-prop">"count"</a> property for details.
|
|
<h3 class=fn>void <a name="currentChanged"></a>TQListBox::currentChanged ( <a href="qlistboxitem.html">TQListBoxItem</a> * item )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when the user makes a new item the current
|
|
item. <em>item</em> is the new current list box item.
|
|
<p> <p>See also <a href="#currentItem-prop">currentItem</a> and <a href="#currentItem-prop">currentItem</a>.
|
|
|
|
<h3 class=fn>int <a name="currentItem"></a>TQListBox::currentItem () const
|
|
</h3><p>Returns the current highlighted item.
|
|
See the <a href="ntqlistbox.html#currentItem-prop">"currentItem"</a> property for details.
|
|
<h3 class=fn><a href="ntqstring.html">TQString</a> <a name="currentText"></a>TQListBox::currentText () const
|
|
</h3><p>Returns the text of the current item.
|
|
See the <a href="ntqlistbox.html#currentText-prop">"currentText"</a> property for details.
|
|
<h3 class=fn>void <a name="doLayout"></a>TQListBox::doLayout () const<tt> [protected]</tt>
|
|
</h3>
|
|
This function does the hard layout work. You should never need to
|
|
call it.
|
|
|
|
<h3 class=fn>void <a name="doubleClicked"></a>TQListBox::doubleClicked ( <a href="qlistboxitem.html">TQListBoxItem</a> * item )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted whenever an item is double-clicked. It's
|
|
emitted on the second button press, not the second button release.
|
|
If <em>item</em> is not 0, the cursor is on <em>item</em>. If <em>item</em> is 0,
|
|
the mouse cursor isn't on any item.
|
|
|
|
<h3 class=fn>void <a name="ensureCurrentVisible"></a>TQListBox::ensureCurrentVisible ()<tt> [virtual slot]</tt>
|
|
</h3>
|
|
Ensures that the current item is visible.
|
|
|
|
<h3 class=fn><a href="qlistboxitem.html">TQListBoxItem</a> * <a name="findItem"></a>TQListBox::findItem ( const <a href="ntqstring.html">TQString</a> & text, ComparisonFlags compare = BeginsWith ) const
|
|
</h3>
|
|
Finds the first list box item that has the text <em>text</em> and
|
|
returns it, or returns 0 of no such item could be found.
|
|
The search starts from the current item if the current item exists,
|
|
otherwise it starts from the first list box item.
|
|
If <tt>ComparisonFlags</tt> are specified in <em>compare</em> then these flags
|
|
are used, otherwise the default is a case-insensitive, "begins
|
|
with" search.
|
|
<p> <p>See also <a href="ntqt.html#StringComparisonMode-enum">TQt::StringComparisonMode</a>.
|
|
|
|
<h3 class=fn>int <a name="findItem-2"></a>TQListBox::findItem ( int yPos ) const<tt> [protected]</tt>
|
|
</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>
|
|
Returns the index of the item a point (0, <em>yPos</em>).
|
|
<p>See also <a href="#index">index</a>() and <a href="#itemAt">itemAt</a>().
|
|
|
|
<h3 class=fn><a href="qlistboxitem.html">TQListBoxItem</a> * <a name="firstItem"></a>TQListBox::firstItem () const
|
|
</h3>
|
|
Returns the first item in this list box. If the list box is empty,
|
|
returns 0.
|
|
|
|
<h3 class=fn>void <a name="highlighted"></a>TQListBox::highlighted ( int index )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when the user makes a new item the current
|
|
item. <em>index</em> is the index of the new current item.
|
|
<p> <p>See also <a href="#currentChanged">currentChanged</a>(), <a href="#selected">selected</a>(), <a href="#currentItem-prop">currentItem</a>, and <a href="#selectionChanged">selectionChanged</a>().
|
|
|
|
<h3 class=fn>void <a name="highlighted-2"></a>TQListBox::highlighted ( const <a href="ntqstring.html">TQString</a> & )<tt> [signal]</tt>
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> This signal is emitted when the user makes a new item the current
|
|
item and the item is (or has) a string. The argument is the text
|
|
of the new current item.
|
|
<p> <p>See also <a href="#currentChanged">currentChanged</a>(), <a href="#selected">selected</a>(), <a href="#currentItem-prop">currentItem</a>, and <a href="#selectionChanged">selectionChanged</a>().
|
|
|
|
<h3 class=fn>void <a name="highlighted-3"></a>TQListBox::highlighted ( <a href="qlistboxitem.html">TQListBoxItem</a> * )<tt> [signal]</tt>
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> This signal is emitted when the user makes a new item the current
|
|
item. The argument is a pointer to the new current item.
|
|
<p> <p>See also <a href="#currentChanged">currentChanged</a>(), <a href="#selected">selected</a>(), <a href="#currentItem-prop">currentItem</a>, and <a href="#selectionChanged">selectionChanged</a>().
|
|
|
|
<h3 class=fn>int <a name="inSort"></a>TQListBox::inSort ( const <a href="qlistboxitem.html">TQListBoxItem</a> * lbi )
|
|
</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> Using this method is quite inefficient. We suggest to use <a href="#insertItem">insertItem</a>()
|
|
for inserting and <a href="#sort">sort</a>() afterwards.
|
|
<p> Inserts <em>lbi</em> at its sorted position in the list box and returns the
|
|
position.
|
|
<p> All items must be inserted with <a href="#inSort">inSort</a>() to maintain the sorting
|
|
order. inSort() treats any pixmap (or user-defined type) as
|
|
lexicographically less than any string.
|
|
<p> <p>See also <a href="#insertItem">insertItem</a>() and <a href="#sort">sort</a>().
|
|
|
|
<h3 class=fn>int <a name="inSort-2"></a>TQListBox::inSort ( const <a href="ntqstring.html">TQString</a> & text )
|
|
</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> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Using this method is quite inefficient. We suggest to use <a href="#insertItem">insertItem</a>()
|
|
for inserting and <a href="#sort">sort</a>() afterwards.
|
|
<p> Inserts a new item of <em>text</em> at its sorted position in the list box and
|
|
returns the position.
|
|
<p> All items must be inserted with <a href="#inSort">inSort</a>() to maintain the sorting
|
|
order. inSort() treats any pixmap (or user-defined type) as
|
|
lexicographically less than any string.
|
|
<p> <p>See also <a href="#insertItem">insertItem</a>() and <a href="#sort">sort</a>().
|
|
|
|
<h3 class=fn>int <a name="index"></a>TQListBox::index ( const <a href="qlistboxitem.html">TQListBoxItem</a> * lbi ) const
|
|
</h3>
|
|
Returns the index of <em>lbi</em>, or -1 if the item is not in this list
|
|
box or <em>lbi</em> is 0.
|
|
<p> <p>See also <a href="#item">item</a>().
|
|
|
|
<h3 class=fn>void <a name="insertItem"></a>TQListBox::insertItem ( const <a href="qlistboxitem.html">TQListBoxItem</a> * lbi, int index = -1 )
|
|
</h3>
|
|
Inserts the item <em>lbi</em> into the list at position <em>index</em>.
|
|
<p> If <em>index</em> is negative or larger than the number of items in the
|
|
list box, <em>lbi</em> is inserted at the end of the list.
|
|
<p> <p>See also <a href="#insertStrList">insertStrList</a>().
|
|
|
|
<p>Examples: <a href="i18n-example.html#x1925">i18n/mywidget.cpp</a>, <a href="listbox-example.html#x1433">listbox/listbox.cpp</a>, <a href="listboxcombo-example.html#x1406">listboxcombo/listboxcombo.cpp</a>, and <a href="tabdialog-example.html#x55">tabdialog/tabdialog.cpp</a>.
|
|
<h3 class=fn>void <a name="insertItem-2"></a>TQListBox::insertItem ( const <a href="qlistboxitem.html">TQListBoxItem</a> * lbi, const <a href="qlistboxitem.html">TQListBoxItem</a> * after )
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Inserts the item <em>lbi</em> into the list after the item <em>after</em>, or
|
|
at the beginning if <em>after</em> is 0.
|
|
<p> <p>See also <a href="#insertStrList">insertStrList</a>().
|
|
|
|
<h3 class=fn>void <a name="insertItem-3"></a>TQListBox::insertItem ( const <a href="ntqstring.html">TQString</a> & text, int index = -1 )
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Inserts a new list box text item with the text <em>text</em> into the
|
|
list at position <em>index</em>.
|
|
<p> If <em>index</em> is negative, <em>text</em> is inserted at the end of the
|
|
list.
|
|
<p> <p>See also <a href="#insertStrList">insertStrList</a>().
|
|
|
|
<h3 class=fn>void <a name="insertItem-4"></a>TQListBox::insertItem ( const <a href="ntqpixmap.html">TQPixmap</a> & pixmap, int index = -1 )
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Inserts a new list box pixmap item with the pixmap <em>pixmap</em> into
|
|
the list at position <em>index</em>.
|
|
<p> If <em>index</em> is negative, <em>pixmap</em> is inserted at the end of the
|
|
list.
|
|
<p> <p>See also <a href="#insertStrList">insertStrList</a>().
|
|
|
|
<h3 class=fn>void <a name="insertItem-5"></a>TQListBox::insertItem ( const <a href="ntqpixmap.html">TQPixmap</a> & pixmap, const <a href="ntqstring.html">TQString</a> & text, int index = -1 )
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Inserts a new list box pixmap item with the pixmap <em>pixmap</em> and
|
|
the text <em>text</em> into the list at position <em>index</em>.
|
|
<p> If <em>index</em> is negative, <em>pixmap</em> is inserted at the end of the
|
|
list.
|
|
<p> <p>See also <a href="#insertStrList">insertStrList</a>().
|
|
|
|
<h3 class=fn>void <a name="insertStrList"></a>TQListBox::insertStrList ( const <a href="ntqstrlist.html">TQStrList</a> * list, int index = -1 )
|
|
</h3>
|
|
Inserts the string list <em>list</em> into the list at position <em>index</em>.
|
|
<p> If <em>index</em> is negative, <em>list</em> is inserted at the end of the
|
|
list. If <em>index</em> is too large, the operation is ignored.
|
|
<p> <b>Warning:</b> This function uses <tt>const char *</tt> rather than <a href="ntqstring.html">TQString</a>,
|
|
so we recommend against using it. It is provided so that legacy
|
|
code will continue to work, and so that programs that certainly
|
|
will not need to handle code outside a single 8-bit locale can use
|
|
it. See <a href="#insertStringList">insertStringList</a>() which uses real TQStrings.
|
|
<p> <b>Warning:</b> This function is never significantly faster than a loop
|
|
around <a href="#insertItem">insertItem</a>().
|
|
<p> <p>See also <a href="#insertItem">insertItem</a>() and <a href="#insertStringList">insertStringList</a>().
|
|
|
|
<h3 class=fn>void <a name="insertStrList-2"></a>TQListBox::insertStrList ( const <a href="ntqstrlist.html">TQStrList</a> & list, int index = -1 )
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Inserts the string list <em>list</em> into the list at position <em>index</em>.
|
|
<p> If <em>index</em> is negative, <em>list</em> is inserted at the end of the
|
|
list. If <em>index</em> is too large, the operation is ignored.
|
|
<p> <b>Warning:</b> This function uses <tt>const char *</tt> rather than <a href="ntqstring.html">TQString</a>,
|
|
so we recommend against using it. It is provided so that legacy
|
|
code will continue to work, and so that programs that certainly
|
|
will not need to handle code outside a single 8-bit locale can use
|
|
it. See <a href="#insertStringList">insertStringList</a>() which uses real TQStrings.
|
|
<p> <b>Warning:</b> This function is never significantly faster than a loop
|
|
around <a href="#insertItem">insertItem</a>().
|
|
<p> <p>See also <a href="#insertItem">insertItem</a>() and <a href="#insertStringList">insertStringList</a>().
|
|
|
|
<h3 class=fn>void <a name="insertStrList-3"></a>TQListBox::insertStrList ( const char ** strings, int numStrings = -1, int index = -1 )
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Inserts the <em>numStrings</em> strings of the array <em>strings</em> into the
|
|
list at position <em>index</em>.
|
|
<p> If <em>index</em> is negative, <a href="#insertStrList">insertStrList</a>() inserts <em>strings</em> at the
|
|
end of the list. If <em>index</em> is too large, the operation is
|
|
ignored.
|
|
<p> <b>Warning:</b> This function uses <tt>const char *</tt> rather than <a href="ntqstring.html">TQString</a>,
|
|
so we recommend against using it. It is provided so that legacy
|
|
code will continue to work, and so that programs that certainly
|
|
will not need to handle code outside a single 8-bit locale can use
|
|
it. See <a href="#insertStringList">insertStringList</a>() which uses real TQStrings.
|
|
<p> <b>Warning:</b> This function is never significantly faster than a loop
|
|
around <a href="#insertItem">insertItem</a>().
|
|
<p> <p>See also <a href="#insertItem">insertItem</a>() and <a href="#insertStringList">insertStringList</a>().
|
|
|
|
<h3 class=fn>void <a name="insertStringList"></a>TQListBox::insertStringList ( const <a href="ntqstringlist.html">TQStringList</a> & list, int index = -1 )
|
|
</h3>
|
|
Inserts the string list <em>list</em> into the list at position <em>index</em>.
|
|
<p> If <em>index</em> is negative, <em>list</em> is inserted at the end of the
|
|
list. If <em>index</em> is too large, the operation is ignored.
|
|
<p> <b>Warning:</b> This function is never significantly faster than a loop
|
|
around <a href="#insertItem">insertItem</a>().
|
|
<p> <p>See also <a href="#insertItem">insertItem</a>() and <a href="#insertStrList">insertStrList</a>().
|
|
|
|
<h3 class=fn>void <a name="invertSelection"></a>TQListBox::invertSelection ()<tt> [virtual slot]</tt>
|
|
</h3>
|
|
Inverts the selection. Only works in <a href="#SelectionMode-enum">Multi</a> and <a href="#SelectionMode-enum">Extended</a>
|
|
selection mode.
|
|
|
|
<h3 class=fn>bool <a name="isMultiSelection"></a>TQListBox::isMultiSelection () const
|
|
</h3><p>Returns TRUE if or not the list box is in Multi selection mode; otherwise returns FALSE.
|
|
See the <a href="ntqlistbox.html#multiSelection-prop">"multiSelection"</a> property for details.
|
|
<h3 class=fn>bool <a name="isRubberSelecting"></a>TQListBox::isRubberSelecting () const<tt> [protected]</tt>
|
|
</h3>
|
|
Returns TRUE if the user is selecting items using a rubber band
|
|
rectangle; otherwise returns FALSE.
|
|
|
|
<h3 class=fn>bool <a name="isSelected"></a>TQListBox::isSelected ( int i ) const
|
|
</h3>
|
|
Returns TRUE if item <em>i</em> is selected; otherwise returns FALSE.
|
|
|
|
<h3 class=fn>bool <a name="isSelected-2"></a>TQListBox::isSelected ( const <a href="qlistboxitem.html">TQListBoxItem</a> * i ) const
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Returns TRUE if item <em>i</em> is selected; otherwise returns FALSE.
|
|
|
|
<h3 class=fn><a href="qlistboxitem.html">TQListBoxItem</a> * <a name="item"></a>TQListBox::item ( int index ) const
|
|
</h3>
|
|
Returns a pointer to the item at position <em>index</em>, or 0 if <em>index</em> is out of bounds.
|
|
<p> <p>See also <a href="#index">index</a>().
|
|
|
|
<p>Example: <a href="listboxcombo-example.html#x1407">listboxcombo/listboxcombo.cpp</a>.
|
|
<h3 class=fn><a href="qlistboxitem.html">TQListBoxItem</a> * <a name="itemAt"></a>TQListBox::itemAt ( const <a href="ntqpoint.html">TQPoint</a> & p ) const
|
|
</h3>
|
|
Returns the item at point <em>p</em>, specified in viewport coordinates,
|
|
or a 0 if there is no item at <em>p</em>.
|
|
<p> Use <a href="ntqscrollview.html#contentsToViewport">contentsToViewport</a>() to convert between widget coordinates and
|
|
viewport coordinates.
|
|
|
|
<h3 class=fn>int <a name="itemHeight"></a>TQListBox::itemHeight ( int index = 0 ) const
|
|
</h3>
|
|
Returns the height in pixels of the item with index <em>index</em>. <em>index</em> defaults to 0.
|
|
<p> If <em>index</em> is too large, this function returns 0.
|
|
|
|
<h3 class=fn><a href="ntqrect.html">TQRect</a> <a name="itemRect"></a>TQListBox::itemRect ( <a href="qlistboxitem.html">TQListBoxItem</a> * item ) const
|
|
</h3>
|
|
Returns the rectangle on the screen that <em>item</em> occupies in
|
|
<a href="ntqscrollview.html#viewport">viewport</a>()'s coordinates, or an invalid rectangle if <em>item</em> is 0
|
|
or is not currently visible.
|
|
|
|
<h3 class=fn>bool <a name="itemVisible"></a>TQListBox::itemVisible ( int index )
|
|
</h3>
|
|
Returns TRUE if the item at position <em>index</em> is at least partly
|
|
visible; otherwise returns FALSE.
|
|
|
|
<h3 class=fn>bool <a name="itemVisible-2"></a>TQListBox::itemVisible ( const <a href="qlistboxitem.html">TQListBoxItem</a> * item )
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Returns TRUE if <em>item</em> is at least partly visible; otherwise
|
|
returns FALSE.
|
|
|
|
<h3 class=fn>bool <a name="itemYPos"></a>TQListBox::itemYPos ( int index, int * yPos ) const<tt> [protected]</tt>
|
|
</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> Returns the vertical pixel-coordinate in <em>*yPos</em>, of the list box
|
|
item at position <em>index</em> in the list. Returns FALSE if the item is
|
|
outside the visible area.
|
|
|
|
<h3 class=fn>long <a name="maxItemWidth"></a>TQListBox::maxItemWidth () const
|
|
</h3>
|
|
Returns the width of the widest item in the list box.
|
|
|
|
<h3 class=fn>void <a name="mouseButtonClicked"></a>TQListBox::mouseButtonClicked ( int button, <a href="qlistboxitem.html">TQListBoxItem</a> * item, const <a href="ntqpoint.html">TQPoint</a> & pos )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when the user clicks mouse button <em>button</em>. If <em>item</em> is not 0, the cursor is on <em>item</em>. If <em>item</em>
|
|
is 0, the mouse cursor isn't on any item.
|
|
<p> <em>pos</em> is the position of the mouse cursor in the global
|
|
coordinate system (<a href="qmouseevent.html#globalPos">TQMouseEvent::globalPos</a>()). (If the click's
|
|
press and release differs by a pixel or two, <em>pos</em> is the
|
|
position at release time.)
|
|
<p> Note that you must not delete any <a href="qlistboxitem.html">TQListBoxItem</a> objects in slots
|
|
connected to this signal.
|
|
|
|
<h3 class=fn>void <a name="mouseButtonPressed"></a>TQListBox::mouseButtonPressed ( int button, <a href="qlistboxitem.html">TQListBoxItem</a> * item, const <a href="ntqpoint.html">TQPoint</a> & pos )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when the user presses mouse button <em>button</em>. If <em>item</em> is not 0, the cursor is on <em>item</em>. If <em>item</em>
|
|
is 0, the mouse cursor isn't on any item.
|
|
<p> <em>pos</em> is the position of the mouse cursor in the global
|
|
coordinate system (<a href="qmouseevent.html#globalPos">TQMouseEvent::globalPos</a>()).
|
|
<p> Note that you must not delete any <a href="qlistboxitem.html">TQListBoxItem</a> objects in slots
|
|
connected to this signal.
|
|
|
|
<h3 class=fn>int <a name="numCols"></a>TQListBox::numCols () 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>
|
|
Returns the number of columns.
|
|
<p>See also <a href="#numColumns-prop">numColumns</a>.
|
|
|
|
<h3 class=fn>int <a name="numColumns"></a>TQListBox::numColumns () const
|
|
</h3><p>Returns the number of columns in the list box.
|
|
See the <a href="ntqlistbox.html#numColumns-prop">"numColumns"</a> property for details.
|
|
<h3 class=fn>int <a name="numItemsVisible"></a>TQListBox::numItemsVisible () const
|
|
</h3><p>Returns the number of visible items.
|
|
See the <a href="ntqlistbox.html#numItemsVisible-prop">"numItemsVisible"</a> property for details.
|
|
<h3 class=fn>int <a name="numRows"></a>TQListBox::numRows () const
|
|
</h3><p>Returns the number of rows in the list box.
|
|
See the <a href="ntqlistbox.html#numRows-prop">"numRows"</a> property for details.
|
|
<h3 class=fn>void <a name="onItem"></a>TQListBox::onItem ( <a href="qlistboxitem.html">TQListBoxItem</a> * i )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when the user moves the mouse cursor onto
|
|
an item, similar to the <a href="ntqwidget.html#enterEvent">TQWidget::enterEvent</a>() function. <em>i</em> is
|
|
the <a href="qlistboxitem.html">TQListBoxItem</a> that the mouse has moved on.
|
|
|
|
<h3 class=fn>void <a name="onViewport"></a>TQListBox::onViewport ()<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when the user moves the mouse cursor from
|
|
an item to an empty part of the list box.
|
|
|
|
<h3 class=fn>void <a name="paintCell"></a>TQListBox::paintCell ( <a href="ntqpainter.html">TQPainter</a> * p, int row, int col )<tt> [virtual protected]</tt>
|
|
</h3>
|
|
Provided for compatibility with the old TQListBox. We recommend
|
|
using <a href="qlistboxitem.html#paint">TQListBoxItem::paint</a>() instead.
|
|
<p> Repaints the cell at <em>row</em>, <em>col</em> using painter <em>p</em>.
|
|
|
|
<h3 class=fn>const <a href="ntqpixmap.html">TQPixmap</a> * <a name="pixmap"></a>TQListBox::pixmap ( int index ) const
|
|
</h3>
|
|
Returns a pointer to the pixmap at position <em>index</em>, or 0 if
|
|
there is no pixmap there.
|
|
<p> <p>See also <a href="#text">text</a>().
|
|
|
|
<h3 class=fn>void <a name="pressed"></a>TQListBox::pressed ( <a href="qlistboxitem.html">TQListBoxItem</a> * item )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when the user presses any mouse button. If
|
|
<em>item</em> is not 0, the cursor is on <em>item</em>. If <em>item</em> is 0, the
|
|
mouse cursor isn't on any item.
|
|
<p> Note that you must not delete any <a href="qlistboxitem.html">TQListBoxItem</a> objects in slots
|
|
connected to this signal.
|
|
|
|
<h3 class=fn>void <a name="pressed-2"></a>TQListBox::pressed ( <a href="qlistboxitem.html">TQListBoxItem</a> * item, const <a href="ntqpoint.html">TQPoint</a> & pnt )<tt> [signal]</tt>
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> This signal is emitted when the user presses any mouse button. If
|
|
<em>item</em> is not 0, the cursor is on <em>item</em>. If <em>item</em> is 0, the
|
|
mouse cursor isn't on any item.
|
|
<p> <em>pnt</em> is the position of the mouse cursor in the global
|
|
coordinate system (<a href="qmouseevent.html#globalPos">TQMouseEvent::globalPos</a>()).
|
|
<p> Note that you must not delete any <a href="qlistboxitem.html">TQListBoxItem</a> objects in slots
|
|
connected to this signal.
|
|
<p> <p>See also <a href="#mouseButtonPressed">mouseButtonPressed</a>(), <a href="#rightButtonPressed">rightButtonPressed</a>(), and <a href="#clicked">clicked</a>().
|
|
|
|
<h3 class=fn>void <a name="removeItem"></a>TQListBox::removeItem ( int index )
|
|
</h3>
|
|
Removes and deletes the item at position <em>index</em>. If <em>index</em> is
|
|
equal to <a href="#currentItem">currentItem</a>(), a new item becomes current and the
|
|
<a href="#currentChanged">currentChanged</a>() and <a href="#highlighted">highlighted</a>() signals are emitted.
|
|
<p> <p>See also <a href="#insertItem">insertItem</a>() and <a href="#clear">clear</a>().
|
|
|
|
<h3 class=fn>void <a name="returnPressed"></a>TQListBox::returnPressed ( <a href="qlistboxitem.html">TQListBoxItem</a> * )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when Enter or Return is pressed. The
|
|
argument is <a href="#currentItem">currentItem</a>().
|
|
|
|
<h3 class=fn>void <a name="rightButtonClicked"></a>TQListBox::rightButtonClicked ( <a href="qlistboxitem.html">TQListBoxItem</a> *, const <a href="ntqpoint.html">TQPoint</a> & )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when the right button is clicked (i.e. when
|
|
it's released at the same point where it was pressed). The
|
|
arguments are the relevant <a href="qlistboxitem.html">TQListBoxItem</a> (may be 0) and the point
|
|
in global coordinates.
|
|
|
|
<h3 class=fn>void <a name="rightButtonPressed"></a>TQListBox::rightButtonPressed ( <a href="qlistboxitem.html">TQListBoxItem</a> *, const <a href="ntqpoint.html">TQPoint</a> & )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when the right button is pressed. The
|
|
arguments are the relevant <a href="qlistboxitem.html">TQListBoxItem</a> (may be 0) and the point
|
|
in global coordinates.
|
|
|
|
<h3 class=fn><a href="ntqlistbox.html#LayoutMode-enum">LayoutMode</a> <a name="rowMode"></a>TQListBox::rowMode () const
|
|
</h3><p>Returns the row layout mode for this list box.
|
|
See the <a href="ntqlistbox.html#rowMode-prop">"rowMode"</a> property for details.
|
|
<h3 class=fn>bool <a name="scrollBar"></a>TQListBox::scrollBar () const
|
|
</h3>
|
|
|
|
<p> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
|
|
<p> Returns FALSE if <a href="ntqscrollview.html#vScrollBarMode">vScrollBarMode</a>() is <a href="ntqscrollview.html#ScrollBarMode-enum">AlwaysOff</a>; otherwise
|
|
returns TRUE.
|
|
|
|
<h3 class=fn>void <a name="selectAll"></a>TQListBox::selectAll ( bool select )<tt> [virtual slot]</tt>
|
|
</h3>
|
|
In <a href="#SelectionMode-enum">Multi</a> and <a href="#SelectionMode-enum">Extended</a> modes, this function sets all items to
|
|
be selected if <em>select</em> is TRUE, and to be unselected if <em>select</em> is FALSE.
|
|
<p> In <a href="#SelectionMode-enum">Single</a> and <a href="#SelectionMode-enum">NoSelection</a> modes, this function only changes
|
|
the selection status of <a href="#currentItem">currentItem</a>().
|
|
|
|
<h3 class=fn>void <a name="selected"></a>TQListBox::selected ( int index )<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when the user double-clicks on an item or
|
|
presses Enter on the current item. <em>index</em> is the index of the
|
|
selected item.
|
|
<p> <p>See also <a href="#currentChanged">currentChanged</a>(), <a href="#highlighted">highlighted</a>(), and <a href="#selectionChanged">selectionChanged</a>().
|
|
|
|
<h3 class=fn>void <a name="selected-2"></a>TQListBox::selected ( const <a href="ntqstring.html">TQString</a> & )<tt> [signal]</tt>
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> This signal is emitted when the user double-clicks on an item or
|
|
presses Enter on the current item, and the item is (or has) a
|
|
string. The argument is the text of the selected item.
|
|
<p> <p>See also <a href="#currentChanged">currentChanged</a>(), <a href="#highlighted">highlighted</a>(), and <a href="#selectionChanged">selectionChanged</a>().
|
|
|
|
<h3 class=fn>void <a name="selected-3"></a>TQListBox::selected ( <a href="qlistboxitem.html">TQListBoxItem</a> * )<tt> [signal]</tt>
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> This signal is emitted when the user double-clicks on an item or
|
|
presses Enter on the current item. The argument is a pointer to
|
|
the new selected item.
|
|
<p> <p>See also <a href="#currentChanged">currentChanged</a>(), <a href="#highlighted">highlighted</a>(), and <a href="#selectionChanged">selectionChanged</a>().
|
|
|
|
<h3 class=fn><a href="qlistboxitem.html">TQListBoxItem</a> * <a name="selectedItem"></a>TQListBox::selectedItem () const
|
|
</h3> Returns the selected item if the list box is in
|
|
single-selection mode and an item is selected.
|
|
<p> If no items are selected or the list box is in another selection mode
|
|
this function returns 0.
|
|
<p> <p>See also <a href="#setSelected">setSelected</a>() and <a href="#multiSelection-prop">multiSelection</a>.
|
|
|
|
<h3 class=fn>void <a name="selectionChanged"></a>TQListBox::selectionChanged ()<tt> [signal]</tt>
|
|
</h3>
|
|
|
|
<p> This signal is emitted when the selection set of a list box
|
|
changes. This signal is emitted in each selection mode. If the
|
|
user selects five items by drag-selecting, TQListBox tries to emit
|
|
just one <a href="#selectionChanged">selectionChanged</a>() signal so the signal can be connected
|
|
to computationally expensive slots.
|
|
<p> <p>See also <a href="#selected">selected</a>() and <a href="#currentItem-prop">currentItem</a>.
|
|
|
|
<h3 class=fn>void <a name="selectionChanged-2"></a>TQListBox::selectionChanged ( <a href="qlistboxitem.html">TQListBoxItem</a> * item )<tt> [signal]</tt>
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> This signal is emitted when the selection in a <a href="#SelectionMode-enum">Single</a> selection
|
|
list box changes. <em>item</em> is the newly selected list box item.
|
|
<p> <p>See also <a href="#selected">selected</a>() and <a href="#currentItem-prop">currentItem</a>.
|
|
|
|
<h3 class=fn><a href="ntqlistbox.html#SelectionMode-enum">SelectionMode</a> <a name="selectionMode"></a>TQListBox::selectionMode () const
|
|
</h3><p>Returns the selection mode of the list box.
|
|
See the <a href="ntqlistbox.html#selectionMode-prop">"selectionMode"</a> property for details.
|
|
<h3 class=fn>void <a name="setAutoBottomScrollBar"></a>TQListBox::setAutoBottomScrollBar ( bool enable )
|
|
</h3>
|
|
|
|
<p> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
|
|
<p> If <em>enable</em> is TRUE sets <a href="ntqscrollview.html#setHScrollBarMode">setHScrollBarMode</a>() to <a href="ntqscrollview.html#ScrollBarMode-enum">AlwaysOn</a>;
|
|
otherwise sets setHScrollBarMode() to <a href="ntqscrollview.html#ScrollBarMode-enum">AlwaysOff</a>.
|
|
|
|
<h3 class=fn>void <a name="setAutoScrollBar"></a>TQListBox::setAutoScrollBar ( bool enable )
|
|
</h3>
|
|
|
|
<p> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
|
|
<p> If <em>enable</em> is TRUE sets <a href="ntqscrollview.html#setVScrollBarMode">setVScrollBarMode</a>() to <a href="ntqscrollview.html#ScrollBarMode-enum">AlwaysOn</a>;
|
|
otherwise sets setVScrollBarMode() to <a href="ntqscrollview.html#ScrollBarMode-enum">AlwaysOff</a>.
|
|
|
|
<h3 class=fn>void <a name="setBottomItem"></a>TQListBox::setBottomItem ( int index )<tt> [virtual]</tt>
|
|
</h3>
|
|
Scrolls the list box so the item at position <em>index</em> in the list
|
|
is displayed in the bottom row of the list box.
|
|
<p> <p>See also <a href="#topItem-prop">topItem</a>.
|
|
|
|
<h3 class=fn>void <a name="setBottomScrollBar"></a>TQListBox::setBottomScrollBar ( bool enable )
|
|
</h3>
|
|
|
|
<p> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
|
|
<p> If <em>enable</em> is TRUE sets <a href="ntqscrollview.html#setHScrollBarMode">setHScrollBarMode</a>() to <a href="ntqscrollview.html#ScrollBarMode-enum">AlwaysOn</a>;
|
|
otherwise sets setHScrollBarMode() to <a href="ntqscrollview.html#ScrollBarMode-enum">AlwaysOff</a>.
|
|
|
|
<h3 class=fn>void <a name="setColumnMode"></a>TQListBox::setColumnMode ( <a href="ntqlistbox.html#LayoutMode-enum">LayoutMode</a> )<tt> [virtual]</tt>
|
|
</h3><p>Sets the column layout mode for this list box.
|
|
See the <a href="ntqlistbox.html#columnMode-prop">"columnMode"</a> property for details.
|
|
<h3 class=fn>void <a name="setColumnMode-2"></a>TQListBox::setColumnMode ( int )<tt> [virtual]</tt>
|
|
</h3><p>Sets the column layout mode for this list box.
|
|
See the <a href="ntqlistbox.html#columnMode-prop">"columnMode"</a> property for details.
|
|
<h3 class=fn>void <a name="setCurrentItem"></a>TQListBox::setCurrentItem ( int index )<tt> [virtual]</tt>
|
|
</h3><p>Sets the current highlighted item to <em>index</em>.
|
|
See the <a href="ntqlistbox.html#currentItem-prop">"currentItem"</a> property for details.
|
|
<h3 class=fn>void <a name="setCurrentItem-2"></a>TQListBox::setCurrentItem ( <a href="qlistboxitem.html">TQListBoxItem</a> * i )<tt> [virtual]</tt>
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Sets the current item to the <a href="qlistboxitem.html">TQListBoxItem</a> <em>i</em>.
|
|
|
|
<h3 class=fn>void <a name="setMultiSelection"></a>TQListBox::setMultiSelection ( bool multi )
|
|
</h3><p>Sets whether or not the list box is in Multi selection mode to <em>multi</em>.
|
|
See the <a href="ntqlistbox.html#multiSelection-prop">"multiSelection"</a> property for details.
|
|
<h3 class=fn>void <a name="setRowMode"></a>TQListBox::setRowMode ( <a href="ntqlistbox.html#LayoutMode-enum">LayoutMode</a> )<tt> [virtual]</tt>
|
|
</h3><p>Sets the row layout mode for this list box.
|
|
See the <a href="ntqlistbox.html#rowMode-prop">"rowMode"</a> property for details.
|
|
<h3 class=fn>void <a name="setRowMode-2"></a>TQListBox::setRowMode ( int )<tt> [virtual]</tt>
|
|
</h3><p>Sets the row layout mode for this list box.
|
|
See the <a href="ntqlistbox.html#rowMode-prop">"rowMode"</a> property for details.
|
|
<h3 class=fn>void <a name="setScrollBar"></a>TQListBox::setScrollBar ( bool enable )
|
|
</h3>
|
|
|
|
<p> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
|
|
<p> If <em>enable</em> is TRUE sets <a href="ntqscrollview.html#setVScrollBarMode">setVScrollBarMode</a>() to <a href="ntqscrollview.html#ScrollBarMode-enum">AlwaysOn</a>;
|
|
otherwise sets setVScrollBarMode() to <a href="ntqscrollview.html#ScrollBarMode-enum">AlwaysOff</a>.
|
|
|
|
<h3 class=fn>void <a name="setSelected"></a>TQListBox::setSelected ( <a href="qlistboxitem.html">TQListBoxItem</a> * item, bool select )<tt> [virtual]</tt>
|
|
</h3>
|
|
Selects <em>item</em> if <em>select</em> is TRUE or unselects it if <em>select</em>
|
|
is FALSE, and repaints the item appropriately.
|
|
<p> If the list box is a <a href="#SelectionMode-enum">Single</a> selection list box and <em>select</em> is
|
|
TRUE, <a href="#setSelected">setSelected</a>() calls <a href="#setCurrentItem">setCurrentItem</a>().
|
|
<p> If the list box is a <a href="#SelectionMode-enum">Single</a> selection list box, <em>select</em> is
|
|
FALSE, setSelected() calls <a href="#clearSelection">clearSelection</a>().
|
|
<p> <p>See also <a href="#multiSelection-prop">multiSelection</a>, <a href="#currentItem-prop">currentItem</a>, <a href="#clearSelection">clearSelection</a>(), and <a href="#currentItem-prop">currentItem</a>.
|
|
|
|
<h3 class=fn>void <a name="setSelected-2"></a>TQListBox::setSelected ( int index, bool select )
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> If <em>select</em> is TRUE the item at position <em>index</em> is selected;
|
|
otherwise the item is deselected.
|
|
|
|
<h3 class=fn>void <a name="setSelectionMode"></a>TQListBox::setSelectionMode ( <a href="ntqlistbox.html#SelectionMode-enum">SelectionMode</a> )<tt> [virtual]</tt>
|
|
</h3><p>Sets the selection mode of the list box.
|
|
See the <a href="ntqlistbox.html#selectionMode-prop">"selectionMode"</a> property for details.
|
|
<h3 class=fn>void <a name="setTopItem"></a>TQListBox::setTopItem ( int index )<tt> [virtual]</tt>
|
|
</h3><p>Sets the index of an item at the top of the screen to <em>index</em>.
|
|
See the <a href="ntqlistbox.html#topItem-prop">"topItem"</a> property for details.
|
|
<h3 class=fn>void <a name="setVariableHeight"></a>TQListBox::setVariableHeight ( bool )<tt> [virtual]</tt>
|
|
</h3><p>Sets whether this list box has variable-height rows.
|
|
See the <a href="ntqlistbox.html#variableHeight-prop">"variableHeight"</a> property for details.
|
|
<h3 class=fn>void <a name="setVariableWidth"></a>TQListBox::setVariableWidth ( bool )<tt> [virtual]</tt>
|
|
</h3><p>Sets whether this list box has variable-width columns.
|
|
See the <a href="ntqlistbox.html#variableWidth-prop">"variableWidth"</a> property for details.
|
|
<h3 class=fn>void <a name="sort"></a>TQListBox::sort ( bool ascending = TRUE )
|
|
</h3>
|
|
If <em>ascending</em> is TRUE sorts the items in ascending order;
|
|
otherwise sorts in descending order.
|
|
<p> To compare the items, the text (<a href="qlistboxitem.html#text">TQListBoxItem::text</a>()) of the items
|
|
is used.
|
|
|
|
<p>Example: <a href="listbox-example.html#x1439">listbox/listbox.cpp</a>.
|
|
<h3 class=fn>void <a name="takeItem"></a>TQListBox::takeItem ( const <a href="qlistboxitem.html">TQListBoxItem</a> * item )
|
|
</h3>
|
|
Removes <em>item</em> from the list box and causes an update of the
|
|
screen display. The item is not deleted. You should normally not
|
|
need to call this function because <a href="qlistboxitem.html#~TQListBoxItem">TQListBoxItem::~TQListBoxItem</a>()
|
|
calls it. The normal way to delete an item is with <tt>delete</tt>.
|
|
<p> <p>See also <a href="#insertItem">TQListBox::insertItem</a>().
|
|
|
|
<h3 class=fn><a href="ntqstring.html">TQString</a> <a name="text"></a>TQListBox::text ( int index ) const
|
|
</h3>
|
|
Returns the text at position <em>index</em>, or <a href="ntqstring.html#TQString-null">TQString::null</a> if there
|
|
is no text at that position.
|
|
<p> <p>See also <a href="#pixmap">pixmap</a>().
|
|
|
|
<h3 class=fn>void <a name="toggleCurrentItem"></a>TQListBox::toggleCurrentItem ()<tt> [protected]</tt>
|
|
</h3>
|
|
Toggles the selection status of <a href="#currentItem">currentItem</a>() and repaints if the
|
|
list box is a <a href="#SelectionMode-enum">Multi</a> selection list box.
|
|
<p> <p>See also <a href="#multiSelection-prop">multiSelection</a>.
|
|
|
|
<h3 class=fn>int <a name="topItem"></a>TQListBox::topItem () const
|
|
</h3><p>Returns the index of an item at the top of the screen.
|
|
See the <a href="ntqlistbox.html#topItem-prop">"topItem"</a> property for details.
|
|
<h3 class=fn>int <a name="totalHeight"></a>TQListBox::totalHeight () const<tt> [protected]</tt>
|
|
</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>
|
|
Returns <a href="ntqscrollview.html#contentsHeight">contentsHeight</a>().
|
|
|
|
<h3 class=fn>int <a name="totalWidth"></a>TQListBox::totalWidth () const<tt> [protected]</tt>
|
|
</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>
|
|
Returns <a href="ntqscrollview.html#contentsWidth">contentsWidth</a>().
|
|
|
|
<h3 class=fn>void <a name="triggerUpdate"></a>TQListBox::triggerUpdate ( bool doLayout )
|
|
</h3>
|
|
Ensures that a single paint event will occur at the end of the
|
|
current event loop iteration. If <em>doLayout</em> is TRUE, the layout
|
|
is also redone.
|
|
|
|
<h3 class=fn>void <a name="updateItem"></a>TQListBox::updateItem ( int index )<tt> [protected]</tt>
|
|
</h3>
|
|
Repaints the item at position <em>index</em> in the list.
|
|
|
|
<h3 class=fn>void <a name="updateItem-2"></a>TQListBox::updateItem ( <a href="qlistboxitem.html">TQListBoxItem</a> * i )<tt> [protected]</tt>
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p> Repaints the <a href="qlistboxitem.html">TQListBoxItem</a> <em>i</em>.
|
|
|
|
<h3 class=fn>bool <a name="variableHeight"></a>TQListBox::variableHeight () const
|
|
</h3><p>Returns TRUE if this list box has variable-height rows; otherwise returns FALSE.
|
|
See the <a href="ntqlistbox.html#variableHeight-prop">"variableHeight"</a> property for details.
|
|
<h3 class=fn>bool <a name="variableWidth"></a>TQListBox::variableWidth () const
|
|
</h3><p>Returns TRUE if this list box has variable-width columns; otherwise returns FALSE.
|
|
See the <a href="ntqlistbox.html#variableWidth-prop">"variableWidth"</a> property for details.
|
|
<hr><h2>Property Documentation</h2>
|
|
<h3 class=fn><a href="ntqlistbox.html#LayoutMode-enum">LayoutMode</a> <a name="columnMode-prop"></a>columnMode</h3>
|
|
<p>This property holds the column layout mode for this list box.
|
|
<p>setColumnMode() sets the layout mode and adjusts the number of
|
|
displayed columns. The row layout mode automatically becomes <a href="#LayoutMode-enum">Variable</a>, unless the column mode is <a href="#LayoutMode-enum">Variable</a>.
|
|
<p> <p>See also <a href="#rowMode-prop">rowMode</a>, <a href="#rowMode-prop">rowMode</a>, and <a href="#numColumns-prop">numColumns</a>.
|
|
|
|
<p>Set this property's value with <a href="#setColumnMode">setColumnMode</a>() and get this property's value with <a href="#columnMode">columnMode</a>().
|
|
<h3 class=fn>uint <a name="count-prop"></a>count</h3>
|
|
<p>This property holds the number of items in the list box.
|
|
<p>
|
|
<p>Get this property's value with <a href="#count">count</a>().
|
|
<h3 class=fn>int <a name="currentItem-prop"></a>currentItem</h3>
|
|
<p>This property holds the current highlighted item.
|
|
<p>When setting this property, the highlighting is moved to the item
|
|
and the list box scrolled as necessary.
|
|
<p> If no item is current, <a href="#currentItem">currentItem</a>() returns -1.
|
|
|
|
<p>Set this property's value with <a href="#setCurrentItem">setCurrentItem</a>() and get this property's value with <a href="#currentItem">currentItem</a>().
|
|
<h3 class=fn><a href="ntqstring.html">TQString</a> <a name="currentText-prop"></a>currentText</h3>
|
|
<p>This property holds the text of the current item.
|
|
<p>This is equivalent to <a href="#text">text</a>(currentItem()).
|
|
|
|
<p>Get this property's value with <a href="#currentText">currentText</a>().
|
|
<h3 class=fn>bool <a name="multiSelection-prop"></a>multiSelection</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> <p>This property holds whether or not the list box is in Multi selection mode.
|
|
<p>Consider using the <a href="#selectionMode-prop">TQListBox::selectionMode</a> property instead of
|
|
this property.
|
|
<p> When setting this property, Multi selection mode is used if set to TRUE and
|
|
to Single selection mode if set to FALSE.
|
|
<p> When getting this property, TRUE is returned if the list box is in
|
|
Multi selection mode or Extended selection mode, and FALSE if it is
|
|
in Single selection mode or NoSelection mode.
|
|
<p> <p>See also <a href="#selectionMode-prop">selectionMode</a>.
|
|
|
|
<p>Set this property's value with <a href="#setMultiSelection">setMultiSelection</a>() and get this property's value with <a href="#isMultiSelection">isMultiSelection</a>().
|
|
<h3 class=fn>int <a name="numColumns-prop"></a>numColumns</h3>
|
|
<p>This property holds the number of columns in the list box.
|
|
<p>This is normally 1, but can be different if <a href="#columnMode-prop">TQListBox::columnMode</a> or <a href="#rowMode-prop">TQListBox::rowMode</a> has been set.
|
|
<p> <p>See also <a href="#columnMode-prop">columnMode</a>, <a href="#rowMode-prop">rowMode</a>, and <a href="#numRows-prop">numRows</a>.
|
|
|
|
<p>Get this property's value with <a href="#numColumns">numColumns</a>().
|
|
<h3 class=fn>int <a name="numItemsVisible-prop"></a>numItemsVisible</h3>
|
|
<p>This property holds the number of visible items.
|
|
<p>Both partially and entirely visible items are counted.
|
|
|
|
<p>Get this property's value with <a href="#numItemsVisible">numItemsVisible</a>().
|
|
<h3 class=fn>int <a name="numRows-prop"></a>numRows</h3>
|
|
<p>This property holds the number of rows in the list box.
|
|
<p>This is equal to the number of items in the default single-column
|
|
layout, but can be different.
|
|
<p> <p>See also <a href="#columnMode-prop">columnMode</a>, <a href="#rowMode-prop">rowMode</a>, and <a href="#numColumns-prop">numColumns</a>.
|
|
|
|
<p>Get this property's value with <a href="#numRows">numRows</a>().
|
|
<h3 class=fn><a href="ntqlistbox.html#LayoutMode-enum">LayoutMode</a> <a name="rowMode-prop"></a>rowMode</h3>
|
|
<p>This property holds the row layout mode for this list box.
|
|
<p>This property is normally <a href="#LayoutMode-enum">Variable</a>.
|
|
<p> <a href="#setRowMode">setRowMode</a>() sets the layout mode and adjusts the number of
|
|
displayed rows. The column layout mode automatically becomes <a href="#LayoutMode-enum">Variable</a>, unless the row mode is <a href="#LayoutMode-enum">Variable</a>.
|
|
<p> <p>See also <a href="#columnMode-prop">columnMode</a>.
|
|
|
|
<p>Set this property's value with <a href="#setRowMode">setRowMode</a>() and get this property's value with <a href="#rowMode">rowMode</a>().
|
|
<h3 class=fn><a href="ntqlistbox.html#SelectionMode-enum">SelectionMode</a> <a name="selectionMode-prop"></a>selectionMode</h3>
|
|
<p>This property holds the selection mode of the list box.
|
|
<p>Sets the list box's selection mode, which may be one of <a href="#SelectionMode-enum">Single</a>
|
|
(the default), <a href="#SelectionMode-enum">Extended</a>, <a href="#SelectionMode-enum">Multi</a> or <a href="#SelectionMode-enum">NoSelection</a>.
|
|
<p> <p>See also <a href="#SelectionMode-enum">SelectionMode</a>.
|
|
|
|
<p>Set this property's value with <a href="#setSelectionMode">setSelectionMode</a>() and get this property's value with <a href="#selectionMode">selectionMode</a>().
|
|
<h3 class=fn>int <a name="topItem-prop"></a>topItem</h3>
|
|
<p>This property holds the index of an item at the top of the screen.
|
|
<p>When getting this property and the listbox has multiple columns,
|
|
an arbitrary item is selected and returned.
|
|
<p> When setting this property, the list box is scrolled so the item
|
|
at position <em>index</em> in the list is displayed in the top row of
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the list box.
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<p>Set this property's value with <a href="#setTopItem">setTopItem</a>() and get this property's value with <a href="#topItem">topItem</a>().
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<h3 class=fn>bool <a name="variableHeight-prop"></a>variableHeight</h3>
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<p>This property holds whether this list box has variable-height rows.
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<p>When the list box has variable-height rows (the default), each row
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is as high as the highest item in that row. When it has same-sized
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rows, all rows are as high as the highest item in the list box.
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<p> <p>See also <a href="#variableWidth-prop">variableWidth</a>.
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<p>Set this property's value with <a href="#setVariableHeight">setVariableHeight</a>() and get this property's value with <a href="#variableHeight">variableHeight</a>().
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<h3 class=fn>bool <a name="variableWidth-prop"></a>variableWidth</h3>
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<p>This property holds whether this list box has variable-width columns.
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<p>When the list box has variable-width columns, each column is as
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|
wide as the widest item in that column. When it has same-sized
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|
columns (the default), all columns are as wide as the widest item
|
|
in the list box.
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<p> <p>See also <a href="#variableHeight-prop">variableHeight</a>.
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|
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<p>Set this property's value with <a href="#setVariableWidth">setVariableWidth</a>() and get this property's value with <a href="#variableWidth">variableWidth</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
|
|
<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>
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|
</table></div></address></body>
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</html>
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