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| author | Timothy Pearson <[email protected]> | 2011-11-08 12:31:36 -0600 |
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| committer | Timothy Pearson <[email protected]> | 2011-11-08 12:31:36 -0600 |
| commit | d796c9dd933ab96ec83b9a634feedd5d32e1ba3f (patch) | |
| tree | 6e3dcca4f77e20ec8966c666aac7c35bd4704053 /doc/html/qlistbox.html | |
| download | tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.tar.gz tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.zip | |
Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731
Diffstat (limited to 'doc/html/qlistbox.html')
| -rw-r--r-- | doc/html/qlistbox.html | 1163 |
1 files changed, 1163 insertions, 0 deletions
diff --git a/doc/html/qlistbox.html b/doc/html/qlistbox.html new file mode 100644 index 000000000..c19964336 --- /dev/null +++ b/doc/html/qlistbox.html @@ -0,0 +1,1163 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> +<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/widgets/qlistbox.cpp:805 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>TQListBox Class</title> +<style type="text/css"><!-- +fn { margin-left: 1cm; text-indent: -1cm; } +a:link { color: #004faf; text-decoration: none } +a:visited { color: #672967; text-decoration: none } +body { background: #ffffff; color: black; } +--></style> +</head> +<body> + +<table border="0" cellpadding="0" cellspacing="0" width="100%"> +<tr bgcolor="#E5E5E5"> +<td valign=center> + <a href="index.html"> +<font color="#004faf">Home</font></a> + | <a href="classes.html"> +<font color="#004faf">All Classes</font></a> + | <a href="mainclasses.html"> +<font color="#004faf">Main Classes</font></a> + | <a href="annotated.html"> +<font color="#004faf">Annotated</font></a> + | <a href="groups.html"> +<font color="#004faf">Grouped Classes</font></a> + | <a href="functions.html"> +<font color="#004faf">Functions</font></a> +</td> +<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQListBox Class Reference</h1> + +<p>The TQListBox widget provides a list of selectable, read-only items. +<a href="#details">More...</a> +<p><tt>#include <<a href="qlistbox-h.html">qlistbox.h</a>></tt> +<p>Inherits <a href="qscrollview.html">TQScrollView</a>. +<p><a href="qlistbox-members.html">List of all member functions.</a> +<h2>Public Members</h2> +<ul> +<li class=fn><a href="#TQListBox"><b>TQListBox</b></a> ( TQWidget * parent = 0, const char * name = 0, WFlags f = 0 )</li> +<li class=fn><a href="#~TQListBox"><b>~TQListBox</b></a> ()</li> +<li class=fn>uint <a href="#count"><b>count</b></a> () const</li> +<li class=fn>void <a href="#insertStringList"><b>insertStringList</b></a> ( const TQStringList & list, int index = -1 )</li> +<li class=fn>void <a href="#insertStrList"><b>insertStrList</b></a> ( const TQStrList * list, int index = -1 )</li> +<li class=fn>void <a href="#insertStrList-2"><b>insertStrList</b></a> ( const TQStrList & list, int index = -1 )</li> +<li class=fn>void <a href="#insertStrList-3"><b>insertStrList</b></a> ( const char ** strings, int numStrings = -1, int index = -1 )</li> +<li class=fn>void <a href="#insertItem"><b>insertItem</b></a> ( const TQListBoxItem * lbi, int index = -1 )</li> +<li class=fn>void <a href="#insertItem-2"><b>insertItem</b></a> ( const TQListBoxItem * lbi, const TQListBoxItem * after )</li> +<li class=fn>void <a href="#insertItem-3"><b>insertItem</b></a> ( const TQString & text, int index = -1 )</li> +<li class=fn>void <a href="#insertItem-4"><b>insertItem</b></a> ( const TQPixmap & pixmap, int index = -1 )</li> +<li class=fn>void <a href="#insertItem-5"><b>insertItem</b></a> ( const TQPixmap & pixmap, const TQString & text, int index = -1 )</li> +<li class=fn>void <a href="#removeItem"><b>removeItem</b></a> ( int index )</li> +<li class=fn>TQString <a href="#text"><b>text</b></a> ( int index ) const</li> +<li class=fn>const TQPixmap * <a href="#pixmap"><b>pixmap</b></a> ( int index ) const</li> +<li class=fn>void <a href="#changeItem"><b>changeItem</b></a> ( const TQListBoxItem * lbi, int index )</li> +<li class=fn>void <a href="#changeItem-2"><b>changeItem</b></a> ( const TQString & text, int index )</li> +<li class=fn>void <a href="#changeItem-3"><b>changeItem</b></a> ( const TQPixmap & pixmap, int index )</li> +<li class=fn>void <a href="#changeItem-4"><b>changeItem</b></a> ( const TQPixmap & pixmap, const TQString & text, int index )</li> +<li class=fn>void <a href="#takeItem"><b>takeItem</b></a> ( const TQListBoxItem * item )</li> +<li class=fn>int <a href="#numItemsVisible"><b>numItemsVisible</b></a> () const</li> +<li class=fn>int <a href="#currentItem"><b>currentItem</b></a> () const</li> +<li class=fn>TQString <a href="#currentText"><b>currentText</b></a> () const</li> +<li class=fn>virtual void <a href="#setCurrentItem"><b>setCurrentItem</b></a> ( int index )</li> +<li class=fn>virtual void <a href="#setCurrentItem-2"><b>setCurrentItem</b></a> ( TQListBoxItem * i )</li> +<li class=fn>void centerCurrentItem () <em>(obsolete)</em></li> +<li class=fn>int <a href="#topItem"><b>topItem</b></a> () const</li> +<li class=fn>virtual void <a href="#setTopItem"><b>setTopItem</b></a> ( int index )</li> +<li class=fn>virtual void <a href="#setBottomItem"><b>setBottomItem</b></a> ( int index )</li> +<li class=fn>long <a href="#maxItemWidth"><b>maxItemWidth</b></a> () const</li> +<li class=fn>enum <a href="#SelectionMode-enum"><b>SelectionMode</b></a> { Single, Multi, Extended, NoSelection }</li> +<li class=fn>virtual void <a href="#setSelectionMode"><b>setSelectionMode</b></a> ( SelectionMode )</li> +<li class=fn>SelectionMode <a href="#selectionMode"><b>selectionMode</b></a> () const</li> +<li class=fn>void setMultiSelection ( bool multi ) <em>(obsolete)</em></li> +<li class=fn>bool isMultiSelection () const <em>(obsolete)</em></li> +<li class=fn>virtual void <a href="#setSelected"><b>setSelected</b></a> ( TQListBoxItem * item, bool select )</li> +<li class=fn>void <a href="#setSelected-2"><b>setSelected</b></a> ( int index, bool select )</li> +<li class=fn>bool <a href="#isSelected"><b>isSelected</b></a> ( int i ) const</li> +<li class=fn>bool <a href="#isSelected-2"><b>isSelected</b></a> ( const TQListBoxItem * i ) const</li> +<li class=fn>TQListBoxItem * <a href="#selectedItem"><b>selectedItem</b></a> () const</li> +<li class=fn>TQListBoxItem * <a href="#item"><b>item</b></a> ( int index ) const</li> +<li class=fn>int <a href="#index"><b>index</b></a> ( const TQListBoxItem * lbi ) const</li> +<li class=fn>TQListBoxItem * <a href="#findItem"><b>findItem</b></a> ( const TQString & text, ComparisonFlags compare = BeginsWith ) const</li> +<li class=fn>void <a href="#triggerUpdate"><b>triggerUpdate</b></a> ( bool doLayout )</li> +<li class=fn>bool <a href="#itemVisible"><b>itemVisible</b></a> ( int index )</li> +<li class=fn>bool <a href="#itemVisible-2"><b>itemVisible</b></a> ( const TQListBoxItem * item )</li> +<li class=fn>enum <a href="#LayoutMode-enum"><b>LayoutMode</b></a> { FixedNumber, FitToWidth, FitToHeight = FitToWidth, Variable }</li> +<li class=fn>virtual void <a href="#setColumnMode"><b>setColumnMode</b></a> ( LayoutMode )</li> +<li class=fn>virtual void <a href="#setColumnMode-2"><b>setColumnMode</b></a> ( int )</li> +<li class=fn>virtual void <a href="#setRowMode"><b>setRowMode</b></a> ( LayoutMode )</li> +<li class=fn>virtual void <a href="#setRowMode-2"><b>setRowMode</b></a> ( int )</li> +<li class=fn>LayoutMode <a href="#columnMode"><b>columnMode</b></a> () const</li> +<li class=fn>LayoutMode <a href="#rowMode"><b>rowMode</b></a> () const</li> +<li class=fn>int <a href="#numColumns"><b>numColumns</b></a> () const</li> +<li class=fn>int <a href="#numRows"><b>numRows</b></a> () const</li> +<li class=fn>bool <a href="#variableWidth"><b>variableWidth</b></a> () const</li> +<li class=fn>virtual void <a href="#setVariableWidth"><b>setVariableWidth</b></a> ( bool )</li> +<li class=fn>bool <a href="#variableHeight"><b>variableHeight</b></a> () const</li> +<li class=fn>virtual void <a href="#setVariableHeight"><b>setVariableHeight</b></a> ( bool )</li> +<li class=fn>bool autoScrollBar () const <em>(obsolete)</em></li> +<li class=fn>void setAutoScrollBar ( bool enable ) <em>(obsolete)</em></li> +<li class=fn>bool scrollBar () const <em>(obsolete)</em></li> +<li class=fn>void setScrollBar ( bool enable ) <em>(obsolete)</em></li> +<li class=fn>bool autoBottomScrollBar () const <em>(obsolete)</em></li> +<li class=fn>void setAutoBottomScrollBar ( bool enable ) <em>(obsolete)</em></li> +<li class=fn>bool bottomScrollBar () const <em>(obsolete)</em></li> +<li class=fn>void setBottomScrollBar ( bool enable ) <em>(obsolete)</em></li> +<li class=fn>int inSort ( const TQListBoxItem * lbi ) <em>(obsolete)</em></li> +<li class=fn>int inSort ( const TQString & text ) <em>(obsolete)</em></li> +<li class=fn>int cellHeight ( int i ) const <em>(obsolete)</em></li> +<li class=fn>int cellHeight () const <em>(obsolete)</em></li> +<li class=fn>int cellWidth () const <em>(obsolete)</em></li> +<li class=fn>int numCols () const <em>(obsolete)</em></li> +<li class=fn>int <a href="#itemHeight"><b>itemHeight</b></a> ( int index = 0 ) const</li> +<li class=fn>TQListBoxItem * <a href="#itemAt"><b>itemAt</b></a> ( const TQPoint & p ) const</li> +<li class=fn>TQRect <a href="#itemRect"><b>itemRect</b></a> ( TQListBoxItem * item ) const</li> +<li class=fn>TQListBoxItem * <a href="#firstItem"><b>firstItem</b></a> () const</li> +<li class=fn>void <a href="#sort"><b>sort</b></a> ( bool ascending = TRUE )</li> +</ul> +<h2>Public Slots</h2> +<ul> +<li class=fn>void <a href="#clear"><b>clear</b></a> ()</li> +<li class=fn>virtual void <a href="#ensureCurrentVisible"><b>ensureCurrentVisible</b></a> ()</li> +<li class=fn>virtual void <a href="#clearSelection"><b>clearSelection</b></a> ()</li> +<li class=fn>virtual void <a href="#selectAll"><b>selectAll</b></a> ( bool select )</li> +<li class=fn>virtual void <a href="#invertSelection"><b>invertSelection</b></a> ()</li> +</ul> +<h2>Signals</h2> +<ul> +<li class=fn>void <a href="#highlighted"><b>highlighted</b></a> ( int index )</li> +<li class=fn>void <a href="#selected"><b>selected</b></a> ( int index )</li> +<li class=fn>void <a href="#highlighted-2"><b>highlighted</b></a> ( const TQString & )</li> +<li class=fn>void <a href="#selected-2"><b>selected</b></a> ( const TQString & )</li> +<li class=fn>void <a href="#highlighted-3"><b>highlighted</b></a> ( TQListBoxItem * )</li> +<li class=fn>void <a href="#selected-3"><b>selected</b></a> ( TQListBoxItem * )</li> +<li class=fn>void <a href="#selectionChanged"><b>selectionChanged</b></a> ()</li> +<li class=fn>void <a href="#selectionChanged-2"><b>selectionChanged</b></a> ( TQListBoxItem * item )</li> +<li class=fn>void <a href="#currentChanged"><b>currentChanged</b></a> ( TQListBoxItem * item )</li> +<li class=fn>void <a href="#clicked"><b>clicked</b></a> ( TQListBoxItem * item )</li> +<li class=fn>void <a href="#clicked-2"><b>clicked</b></a> ( TQListBoxItem * item, const TQPoint & pnt )</li> +<li class=fn>void <a href="#pressed"><b>pressed</b></a> ( TQListBoxItem * item )</li> +<li class=fn>void <a href="#pressed-2"><b>pressed</b></a> ( TQListBoxItem * item, const TQPoint & pnt )</li> +<li class=fn>void <a href="#doubleClicked"><b>doubleClicked</b></a> ( TQListBoxItem * item )</li> +<li class=fn>void <a href="#returnPressed"><b>returnPressed</b></a> ( TQListBoxItem * )</li> +<li class=fn>void <a href="#rightButtonClicked"><b>rightButtonClicked</b></a> ( TQListBoxItem *, const TQPoint & )</li> +<li class=fn>void <a href="#rightButtonPressed"><b>rightButtonPressed</b></a> ( TQListBoxItem *, const TQPoint & )</li> +<li class=fn>void <a href="#mouseButtonPressed"><b>mouseButtonPressed</b></a> ( int button, TQListBoxItem * item, const TQPoint & pos )</li> +<li class=fn>void <a href="#mouseButtonClicked"><b>mouseButtonClicked</b></a> ( int button, TQListBoxItem * item, const TQPoint & pos )</li> +<li class=fn>void <a href="#contextMenuRequested"><b>contextMenuRequested</b></a> ( TQListBoxItem * item, const TQPoint & pos )</li> +<li class=fn>void <a href="#onItem"><b>onItem</b></a> ( TQListBoxItem * i )</li> +<li class=fn>void <a href="#onViewport"><b>onViewport</b></a> ()</li> +</ul> +<h2>Properties</h2> +<ul> +<li class=fn>LayoutMode <a href="#columnMode-prop"><b>columnMode</b></a> - the column layout mode for this list box</li> +<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> +<li class=fn>int <a href="#currentItem-prop"><b>currentItem</b></a> - the current highlighted item</li> +<li class=fn>TQString <a href="#currentText-prop"><b>currentText</b></a> - the text of the current item <em>(read only)</em></li> +<li class=fn>bool multiSelection - whether or not the list box is in Multi selection mode <em>(obsolete)</em></li> +<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> +<li class=fn>int <a href="#numItemsVisible-prop"><b>numItemsVisible</b></a> - the number of visible items <em>(read only)</em></li> +<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> +<li class=fn>LayoutMode <a href="#rowMode-prop"><b>rowMode</b></a> - the row layout mode for this list box</li> +<li class=fn>SelectionMode <a href="#selectionMode-prop"><b>selectionMode</b></a> - the selection mode of the list box</li> +<li class=fn>int <a href="#topItem-prop"><b>topItem</b></a> - the index of an item at the top of the screen</li> +<li class=fn>bool <a href="#variableHeight-prop"><b>variableHeight</b></a> - whether this list box has variable-height rows</li> +<li class=fn>bool <a href="#variableWidth-prop"><b>variableWidth</b></a> - whether this list box has variable-width columns</li> +</ul> +<h2>Protected Members</h2> +<ul> +<li class=fn>void <a href="#updateItem"><b>updateItem</b></a> ( int index )</li> +<li class=fn>void <a href="#updateItem-2"><b>updateItem</b></a> ( TQListBoxItem * i )</li> +<li class=fn>int totalWidth () const <em>(obsolete)</em></li> +<li class=fn>int totalHeight () const <em>(obsolete)</em></li> +<li class=fn>virtual void <a href="#paintCell"><b>paintCell</b></a> ( TQPainter * p, int row, int col )</li> +<li class=fn>void <a href="#toggleCurrentItem"><b>toggleCurrentItem</b></a> ()</li> +<li class=fn>bool <a href="#isRubberSelecting"><b>isRubberSelecting</b></a> () const</li> +<li class=fn>void <a href="#doLayout"><b>doLayout</b></a> () const</li> +<li class=fn>bool itemYPos ( int index, int * yPos ) const <em>(obsolete)</em></li> +<li class=fn>int findItem ( int yPos ) const <em>(obsolete)</em></li> +</ul> +<hr><a name="details"></a><h2>Detailed Description</h2> + + +The TQListBox widget provides a list of selectable, read-only items. +<p> + +<p> This is typically a single-column list in which either no item or +one item is selected, but it can also be used in many other ways. +<p> TQListBox will add scroll bars as necessary, but it isn't intended +for <em>really</em> big lists. If you want more than a few thousand +items, it's probably better to use a different widget mainly +because the scroll bars won't provide very good navigation, but +also because TQListBox may become slow with huge lists. (See +<a href="qlistview.html">TQListView</a> and <a href="qtable.html">TQTable</a> for possible alternatives.) +<p> There are a variety of selection modes described in the +TQListBox::SelectionMode documentation. The default is <a href="#SelectionMode-enum">Single</a> +selection mode, but you can change it using <a href="#setSelectionMode">setSelectionMode</a>(). +(<a href="#setMultiSelection">setMultiSelection</a>() is still provided for compatibility with TQt +1.x. We recommend using setSelectionMode() in all code.) +<p> Because TQListBox offers multiple selection it must display +<a href="focus.html#keyboard-focus">keyboard focus</a> and selection state separately. Therefore there are +functions both to set the selection state of an item, i.e. +<a href="#setSelected">setSelected</a>(), and to set which item displays keyboard focus, i.e. +<a href="#setCurrentItem">setCurrentItem</a>(). +<p> The list box normally arranges its items in a single column and +adds a vertical scroll bar if retquired. It is possible to have a +different fixed number of columns (<a href="#setColumnMode">setColumnMode</a>()), or as many +columns as will fit in the list box's assigned screen space +(setColumnMode(FitToWidth)), or to have a fixed number of rows +(<a href="#setRowMode">setRowMode</a>()) or as many rows as will fit in the list box's +assigned screen space (setRowMode(FitToHeight)). In all these +cases TQListBox will add scroll bars, as appropriate, in at least +one direction. +<p> If multiple rows are used, each row can be as high as necessary +(the normal setting), or you can request that all items will have +the same height by calling <a href="#setVariableHeight">setVariableHeight</a>(FALSE). The same +applies to a column's width, see <a href="#setVariableWidth">setVariableWidth</a>(). +<p> The TQListBox's items are <a href="qlistboxitem.html">TQListBoxItem</a> objects. TQListBox provides +methods to insert new items as strings, as pixmaps, and as +TQListBoxItem * (<a href="#insertItem">insertItem</a>() with various arguments), and to +replace an existing item with a new string, pixmap or TQListBoxItem +(<a href="#changeItem">changeItem</a>() with various arguments). You can also remove items +singly with <a href="#removeItem">removeItem</a>() or <a href="#clear">clear</a>() the entire list box. Note that +if you create a TQListBoxItem yourself and insert it, TQListBox +takes ownership of the item. +<p> You can also create a TQListBoxItem, such as <a href="qlistboxtext.html">TQListBoxText</a> or +<a href="qlistboxpixmap.html">TQListBoxPixmap</a>, with the list box as first parameter. The item +will then append itself. When you delete an item it is +automatically removed from the list box. +<p> The list of items can be arbitrarily large; TQListBox will add +scroll bars if necessary. TQListBox can display a single-column +(the common case) or multiple-columns, and offers both single and +multiple selection. TQListBox does not support multiple-column +items (but <a href="qlistview.html">TQListView</a> and <a href="qtable.html">TQTable</a> do), or tree hierarchies (but +TQListView does). +<p> The list box items can be accessed both as <a href="qlistboxitem.html">TQListBoxItem</a> objects +(recommended) and using integer indexes (the original TQListBox +implementation used an array of strings internally, and the API +still supports this mode of operation). Everything can be done +using the new objects, and most things can be done using indexes. +<p> Each item in a TQListBox contains a TQListBoxItem. One of the items +can be the current item. The <a href="#currentChanged">currentChanged</a>() signal and the +<a href="#highlighted">highlighted</a>() signal are emitted when a new item becomes current, +e.g. because the user clicks on it or <a href="#setCurrentItem">TQListBox::setCurrentItem</a>() +is called. The <a href="#selected">selected</a>() signal is emitted when the user +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="qwidget.html#FocusPolicy-enum">WheelFocus</a> as a default <a href="qwidget.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 +tquite inefficient. It's preferable to insert the items normally +and call <a href="#sort">sort</a>() afterwards, or to insert a sorted <a href="qstringlist.html">TQStringList</a>(). +<p> By default, vertical and horizontal scroll bars are added and +removed as necessary. <a href="qscrollview.html#setHScrollBarMode">setHScrollBarMode</a>() and <a href="qscrollview.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="qlistview.html">TQListView</a>, <a href="qcombobox.html">TQComboBox</a>, <a href="qbuttongroup.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 retquired by the +column mode. (Or as many columns as retquired 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="qwidget.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="qt.html#WidgetFlags-enum">WStaticContents</a> and <a href="qt.html#WidgetFlags-enum">WNoAutoErase</a> should be cleared +immediately after construction. +<p> <p>See also <a href="qwidget.html#clearWFlags">TQWidget::clearWFlags</a>() and <a href="qt.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="qscrollview.html#hScrollBarMode">hScrollBarMode</a>() is <a href="qscrollview.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="qscrollview.html#vScrollBarMode">vScrollBarMode</a>() is <a href="qscrollview.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="qscrollview.html#vScrollBarMode">vScrollBarMode</a>() is <a href="qscrollview.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="qstring.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="qpixmap.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="qpixmap.html">TQPixmap</a> & pixmap, const <a href="qstring.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="qpoint.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="qlistbox.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="qlistbox.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="qpoint.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="qlistbox.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="qlistbox.html#currentItem-prop">"currentItem"</a> property for details. +<h3 class=fn><a href="qstring.html">TQString</a> <a name="currentText"></a>TQListBox::currentText () const +</h3><p>Returns the text of the current item. +See the <a href="qlistbox.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="qstring.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="qt.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="qstring.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 tquite 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="qstring.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 tquite 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="qstring.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="qpixmap.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="qpixmap.html">TQPixmap</a> & pixmap, const <a href="qstring.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="qstrlist.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="qstring.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="qstrlist.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="qstring.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="qstring.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="qstringlist.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="qlistbox.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="qpoint.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="qscrollview.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="qrect.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="qscrollview.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="qpoint.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="qpoint.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="qlistbox.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="qlistbox.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="qlistbox.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="qwidget.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="qpainter.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="qpixmap.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="qpoint.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="qpoint.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="qpoint.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="qlistbox.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="qlistbox.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="qscrollview.html#vScrollBarMode">vScrollBarMode</a>() is <a href="qscrollview.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="qstring.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="qlistbox.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="qlistbox.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="qscrollview.html#setHScrollBarMode">setHScrollBarMode</a>() to <a href="qscrollview.html#ScrollBarMode-enum">AlwaysOn</a>; +otherwise sets setHScrollBarMode() to <a href="qscrollview.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="qscrollview.html#setVScrollBarMode">setVScrollBarMode</a>() to <a href="qscrollview.html#ScrollBarMode-enum">AlwaysOn</a>; +otherwise sets setVScrollBarMode() to <a href="qscrollview.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="qscrollview.html#setHScrollBarMode">setHScrollBarMode</a>() to <a href="qscrollview.html#ScrollBarMode-enum">AlwaysOn</a>; +otherwise sets setHScrollBarMode() to <a href="qscrollview.html#ScrollBarMode-enum">AlwaysOff</a>. + +<h3 class=fn>void <a name="setColumnMode"></a>TQListBox::setColumnMode ( <a href="qlistbox.html#LayoutMode-enum">LayoutMode</a> )<tt> [virtual]</tt> +</h3><p>Sets the column layout mode for this list box. +See the <a href="qlistbox.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="qlistbox.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="qlistbox.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="qlistbox.html#multiSelection-prop">"multiSelection"</a> property for details. +<h3 class=fn>void <a name="setRowMode"></a>TQListBox::setRowMode ( <a href="qlistbox.html#LayoutMode-enum">LayoutMode</a> )<tt> [virtual]</tt> +</h3><p>Sets the row layout mode for this list box. +See the <a href="qlistbox.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="qlistbox.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="qscrollview.html#setVScrollBarMode">setVScrollBarMode</a>() to <a href="qscrollview.html#ScrollBarMode-enum">AlwaysOn</a>; +otherwise sets setVScrollBarMode() to <a href="qscrollview.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="qlistbox.html#SelectionMode-enum">SelectionMode</a> )<tt> [virtual]</tt> +</h3><p>Sets the selection mode of the list box. +See the <a href="qlistbox.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="qlistbox.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="qlistbox.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="qlistbox.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="qstring.html">TQString</a> <a name="text"></a>TQListBox::text ( int index ) const +</h3> +Returns the text at position <em>index</em>, or <a href="qstring.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="qlistbox.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="qscrollview.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="qscrollview.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="qlistbox.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="qlistbox.html#variableWidth-prop">"variableWidth"</a> property for details. +<hr><h2>Property Documentation</h2> +<h3 class=fn><a href="qlistbox.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="qstring.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="qlistbox.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="qlistbox.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 +the list box. + +<p>Set this property's value with <a href="#setTopItem">setTopItem</a>() and get this property's value with <a href="#topItem">topItem</a>(). +<h3 class=fn>bool <a name="variableHeight-prop"></a>variableHeight</h3> +<p>This property holds whether this list box has variable-height rows. +<p>When the list box has variable-height rows (the default), each row +is as high as the highest item in that row. When it has same-sized +rows, all rows are as high as the highest item in the list box. +<p> <p>See also <a href="#variableWidth-prop">variableWidth</a>. + +<p>Set this property's value with <a href="#setVariableHeight">setVariableHeight</a>() and get this property's value with <a href="#variableHeight">variableHeight</a>(). +<h3 class=fn>bool <a name="variableWidth-prop"></a>variableWidth</h3> +<p>This property holds whether this list box has variable-width columns. +<p>When the list box has variable-width columns, each column is as +wide as the widest item in that column. When it has same-sized +columns (the default), all columns are as wide as the widest item +in the list box. +<p> <p>See also <a href="#variableHeight-prop">variableHeight</a>. + +<p>Set this property's value with <a href="#setVariableWidth">setVariableWidth</a>() and get this property's value with <a href="#variableWidth">variableWidth</a>(). +<!-- eof --> +<hr><p> +This file is part of the <a href="index.html">TQt toolkit</a>. +Copyright © 1995-2007 +<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center> +<table width=100% cellspacing=0 border=0><tr> +<td>Copyright © 2007 +<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> +<td align=right><div align=right>TQt 3.3.8</div> +</table></div></address></body> +</html> |