| 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|---|
| 2 | <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/widgets/qcombobox.cpp:59 -->
|
|---|
| 3 | <html>
|
|---|
| 4 | <head>
|
|---|
| 5 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
|---|
| 6 | <title>QComboBox Class</title>
|
|---|
| 7 | <style type="text/css"><!--
|
|---|
| 8 | fn { margin-left: 1cm; text-indent: -1cm; }
|
|---|
| 9 | a:link { color: #004faf; text-decoration: none }
|
|---|
| 10 | a:visited { color: #672967; text-decoration: none }
|
|---|
| 11 | body { background: #ffffff; color: black; }
|
|---|
| 12 | --></style>
|
|---|
| 13 | </head>
|
|---|
| 14 | <body>
|
|---|
| 15 |
|
|---|
| 16 | <table border="0" cellpadding="0" cellspacing="0" width="100%">
|
|---|
| 17 | <tr bgcolor="#E5E5E5">
|
|---|
| 18 | <td valign=center>
|
|---|
| 19 | <a href="index.html">
|
|---|
| 20 | <font color="#004faf">Home</font></a>
|
|---|
| 21 | | <a href="classes.html">
|
|---|
| 22 | <font color="#004faf">All Classes</font></a>
|
|---|
| 23 | | <a href="mainclasses.html">
|
|---|
| 24 | <font color="#004faf">Main Classes</font></a>
|
|---|
| 25 | | <a href="annotated.html">
|
|---|
| 26 | <font color="#004faf">Annotated</font></a>
|
|---|
| 27 | | <a href="groups.html">
|
|---|
| 28 | <font color="#004faf">Grouped Classes</font></a>
|
|---|
| 29 | | <a href="functions.html">
|
|---|
| 30 | <font color="#004faf">Functions</font></a>
|
|---|
| 31 | </td>
|
|---|
| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QComboBox Class Reference</h1>
|
|---|
| 33 |
|
|---|
| 34 | <p>The QComboBox widget is a combined button and popup list.
|
|---|
| 35 | <a href="#details">More...</a>
|
|---|
| 36 | <p><tt>#include <<a href="qcombobox-h.html">qcombobox.h</a>></tt>
|
|---|
| 37 | <p>Inherits <a href="qwidget.html">QWidget</a>.
|
|---|
| 38 | <p><a href="qcombobox-members.html">List of all member functions.</a>
|
|---|
| 39 | <h2>Public Members</h2>
|
|---|
| 40 | <ul>
|
|---|
| 41 | <li class=fn><a href="#QComboBox"><b>QComboBox</b></a> ( QWidget * parent = 0, const char * name = 0 )</li>
|
|---|
| 42 | <li class=fn><a href="#QComboBox-2"><b>QComboBox</b></a> ( bool rw, QWidget * parent = 0, const char * name = 0 )</li>
|
|---|
| 43 | <li class=fn><a href="#~QComboBox"><b>~QComboBox</b></a> ()</li>
|
|---|
| 44 | <li class=fn>int <a href="#count"><b>count</b></a> () const</li>
|
|---|
| 45 | <li class=fn>void <a href="#insertStringList"><b>insertStringList</b></a> ( const QStringList & list, int index = -1 )</li>
|
|---|
| 46 | <li class=fn>void <a href="#insertStrList-2"><b>insertStrList</b></a> ( const QStrList & list, int index = -1 )</li>
|
|---|
| 47 | <li class=fn>void <a href="#insertStrList-3"><b>insertStrList</b></a> ( const QStrList * list, int index = -1 )</li>
|
|---|
| 48 | <li class=fn>void <a href="#insertStrList"><b>insertStrList</b></a> ( const char ** strings, int numStrings = -1, int index = -1 )</li>
|
|---|
| 49 | <li class=fn>void <a href="#insertItem"><b>insertItem</b></a> ( const QString & t, int index = -1 )</li>
|
|---|
| 50 | <li class=fn>void <a href="#insertItem-2"><b>insertItem</b></a> ( const QPixmap & pixmap, int index = -1 )</li>
|
|---|
| 51 | <li class=fn>void <a href="#insertItem-3"><b>insertItem</b></a> ( const QPixmap & pixmap, const QString & text, int index = -1 )</li>
|
|---|
| 52 | <li class=fn>void <a href="#removeItem"><b>removeItem</b></a> ( int index )</li>
|
|---|
| 53 | <li class=fn>int <a href="#currentItem"><b>currentItem</b></a> () const</li>
|
|---|
| 54 | <li class=fn>virtual void <a href="#setCurrentItem"><b>setCurrentItem</b></a> ( int index )</li>
|
|---|
| 55 | <li class=fn>QString <a href="#currentText"><b>currentText</b></a> () const</li>
|
|---|
| 56 | <li class=fn>virtual void <a href="#setCurrentText"><b>setCurrentText</b></a> ( const QString & )</li>
|
|---|
| 57 | <li class=fn>QString <a href="#text"><b>text</b></a> ( int index ) const</li>
|
|---|
| 58 | <li class=fn>const QPixmap * <a href="#pixmap"><b>pixmap</b></a> ( int index ) const</li>
|
|---|
| 59 | <li class=fn>void <a href="#changeItem"><b>changeItem</b></a> ( const QString & t, int index )</li>
|
|---|
| 60 | <li class=fn>void <a href="#changeItem-2"><b>changeItem</b></a> ( const QPixmap & im, int index )</li>
|
|---|
| 61 | <li class=fn>void <a href="#changeItem-3"><b>changeItem</b></a> ( const QPixmap & im, const QString & t, int index )</li>
|
|---|
| 62 | <li class=fn>bool autoResize () const <em>(obsolete)</em></li>
|
|---|
| 63 | <li class=fn>virtual void setAutoResize ( bool ) <em>(obsolete)</em></li>
|
|---|
| 64 | <li class=fn>virtual void <a href="#setPalette"><b>setPalette</b></a> ( const QPalette & palette )</li>
|
|---|
| 65 | <li class=fn>virtual void <a href="#setFont"><b>setFont</b></a> ( const QFont & font )</li>
|
|---|
| 66 | <li class=fn>virtual void <a href="#setSizeLimit"><b>setSizeLimit</b></a> ( int )</li>
|
|---|
| 67 | <li class=fn>int <a href="#sizeLimit"><b>sizeLimit</b></a> () const</li>
|
|---|
| 68 | <li class=fn>virtual void <a href="#setMaxCount"><b>setMaxCount</b></a> ( int )</li>
|
|---|
| 69 | <li class=fn>int <a href="#maxCount"><b>maxCount</b></a> () const</li>
|
|---|
| 70 | <li class=fn>enum <a href="#Policy-enum"><b>Policy</b></a> { NoInsertion, AtTop, AtCurrent, AtBottom, AfterCurrent, BeforeCurrent }</li>
|
|---|
| 71 | <li class=fn>virtual void <a href="#setInsertionPolicy"><b>setInsertionPolicy</b></a> ( Policy policy )</li>
|
|---|
| 72 | <li class=fn>Policy <a href="#insertionPolicy"><b>insertionPolicy</b></a> () const</li>
|
|---|
| 73 | <li class=fn>virtual void <a href="#setValidator"><b>setValidator</b></a> ( const QValidator * v )</li>
|
|---|
| 74 | <li class=fn>const QValidator * <a href="#validator"><b>validator</b></a> () const</li>
|
|---|
| 75 | <li class=fn>virtual void <a href="#setListBox"><b>setListBox</b></a> ( QListBox * newListBox )</li>
|
|---|
| 76 | <li class=fn>QListBox * <a href="#listBox"><b>listBox</b></a> () const</li>
|
|---|
| 77 | <li class=fn>virtual void <a href="#setLineEdit"><b>setLineEdit</b></a> ( QLineEdit * edit )</li>
|
|---|
| 78 | <li class=fn>QLineEdit * <a href="#lineEdit"><b>lineEdit</b></a> () const</li>
|
|---|
| 79 | <li class=fn>virtual void <a href="#setAutoCompletion"><b>setAutoCompletion</b></a> ( bool )</li>
|
|---|
| 80 | <li class=fn>bool <a href="#autoCompletion"><b>autoCompletion</b></a> () const</li>
|
|---|
| 81 | <li class=fn>void <a href="#setDuplicatesEnabled"><b>setDuplicatesEnabled</b></a> ( bool enable )</li>
|
|---|
| 82 | <li class=fn>bool <a href="#duplicatesEnabled"><b>duplicatesEnabled</b></a> () const</li>
|
|---|
| 83 | <li class=fn>bool <a href="#editable"><b>editable</b></a> () const</li>
|
|---|
| 84 | <li class=fn>void <a href="#setEditable"><b>setEditable</b></a> ( bool )</li>
|
|---|
| 85 | <li class=fn>virtual void <a href="#popup"><b>popup</b></a> ()</li>
|
|---|
| 86 | </ul>
|
|---|
| 87 | <h2>Public Slots</h2>
|
|---|
| 88 | <ul>
|
|---|
| 89 | <li class=fn>void <a href="#clear"><b>clear</b></a> ()</li>
|
|---|
| 90 | <li class=fn>void <a href="#clearValidator"><b>clearValidator</b></a> ()</li>
|
|---|
| 91 | <li class=fn>void <a href="#clearEdit"><b>clearEdit</b></a> ()</li>
|
|---|
| 92 | <li class=fn>virtual void <a href="#setEditText"><b>setEditText</b></a> ( const QString & newText )</li>
|
|---|
| 93 | </ul>
|
|---|
| 94 | <h2>Signals</h2>
|
|---|
| 95 | <ul>
|
|---|
| 96 | <li class=fn>void <a href="#activated"><b>activated</b></a> ( int index )</li>
|
|---|
| 97 | <li class=fn>void <a href="#highlighted"><b>highlighted</b></a> ( int index )</li>
|
|---|
| 98 | <li class=fn>void <a href="#activated-2"><b>activated</b></a> ( const QString & string )</li>
|
|---|
| 99 | <li class=fn>void <a href="#highlighted-2"><b>highlighted</b></a> ( const QString & string )</li>
|
|---|
| 100 | <li class=fn>void <a href="#textChanged"><b>textChanged</b></a> ( const QString & string )</li>
|
|---|
| 101 | </ul>
|
|---|
| 102 | <h2>Properties</h2>
|
|---|
| 103 | <ul>
|
|---|
| 104 | <li class=fn>bool <a href="#autoCompletion-prop"><b>autoCompletion</b></a> - whether auto-completion is enabled</li>
|
|---|
| 105 | <li class=fn>bool <a href="#autoMask-prop"><b>autoMask</b></a> - whether the combobox is automatically masked <em>(read only)</em></li>
|
|---|
| 106 | <li class=fn>bool autoResize - whether auto resize is enabled <em>(obsolete)</em></li>
|
|---|
| 107 | <li class=fn>int <a href="#count-prop"><b>count</b></a> - the number of items in the combobox <em>(read only)</em></li>
|
|---|
| 108 | <li class=fn>int <a href="#currentItem-prop"><b>currentItem</b></a> - the index of the current item in the combobox</li>
|
|---|
| 109 | <li class=fn>QString <a href="#currentText-prop"><b>currentText</b></a> - the text of the combobox's current item</li>
|
|---|
| 110 | <li class=fn>bool <a href="#duplicatesEnabled-prop"><b>duplicatesEnabled</b></a> - whether duplicates are allowed</li>
|
|---|
| 111 | <li class=fn>bool <a href="#editable-prop"><b>editable</b></a> - whether the combobox is editable</li>
|
|---|
| 112 | <li class=fn>Policy <a href="#insertionPolicy-prop"><b>insertionPolicy</b></a> - the position of the items inserted by the user</li>
|
|---|
| 113 | <li class=fn>int <a href="#maxCount-prop"><b>maxCount</b></a> - the maximum number of items allowed in the combobox</li>
|
|---|
| 114 | <li class=fn>int <a href="#sizeLimit-prop"><b>sizeLimit</b></a> - the maximum on-screen size of the combobox</li>
|
|---|
| 115 | </ul>
|
|---|
| 116 | <hr><a name="details"></a><h2>Detailed Description</h2>
|
|---|
| 117 |
|
|---|
| 118 |
|
|---|
| 119 | The QComboBox widget is a combined button and popup list.
|
|---|
| 120 | <p>
|
|---|
| 121 |
|
|---|
| 122 | <p> A combobox is a selection widget which displays the current item
|
|---|
| 123 | and can pop up a list of items. A combobox may be editable in
|
|---|
| 124 | which case the user can enter arbitrary strings.
|
|---|
| 125 | <p> Comboboxes provide a means of showing the user's current choice
|
|---|
| 126 | out of a list of options in a way that takes up the minimum amount
|
|---|
| 127 | of screen space.
|
|---|
| 128 | <p> QComboBox supports three different display styles: Aqua/Motif 1.x,
|
|---|
| 129 | <a href="motif-extension.html#Motif">Motif</a> 2.0 and Windows. In Motif 1.x, a combobox was called
|
|---|
| 130 | XmOptionMenu. In Motif 2.0, OSF introduced an improved combobox
|
|---|
| 131 | and named that XmComboBox. QComboBox provides both.
|
|---|
| 132 | <p> QComboBox provides two different constructors. The simplest
|
|---|
| 133 | constructor creates an "old-style" combobox in Motif (or Aqua)
|
|---|
| 134 | style:
|
|---|
| 135 | <pre>
|
|---|
| 136 | QComboBox *c = new QComboBox( this, "read-only combobox" );
|
|---|
| 137 | </pre>
|
|---|
| 138 |
|
|---|
| 139 | <p> The other constructor creates a new-style combobox in Motif style,
|
|---|
| 140 | and can create both read-only and editable comboboxes:
|
|---|
| 141 | <pre>
|
|---|
| 142 | QComboBox *c1 = new QComboBox( FALSE, this, "read-only combobox" );
|
|---|
| 143 | QComboBox *c2 = new QComboBox( TRUE, this, "editable combobox" );
|
|---|
| 144 | </pre>
|
|---|
| 145 |
|
|---|
| 146 | <p> New-style comboboxes use a list box in both Motif and Windows
|
|---|
| 147 | styles, and both the content size and the on-screen size of the
|
|---|
| 148 | list box can be limited with <a href="#sizeLimit">sizeLimit</a>() and <a href="#setMaxCount">setMaxCount</a>()
|
|---|
| 149 | respectively. Old-style comboboxes use a popup in Aqua and Motif
|
|---|
| 150 | style, and that popup will happily grow larger than the desktop if
|
|---|
| 151 | you put enough data into it.
|
|---|
| 152 | <p> The two constructors create identical-looking comboboxes in
|
|---|
| 153 | Windows style.
|
|---|
| 154 | <p> Comboboxes can contain pixmaps as well as strings; the
|
|---|
| 155 | <a href="#insertItem">insertItem</a>() and <a href="#changeItem">changeItem</a>() functions are suitably overloaded.
|
|---|
| 156 | For editable comboboxes, the function <a href="#clearEdit">clearEdit</a>() is provided,
|
|---|
| 157 | to clear the displayed string without changing the combobox's
|
|---|
| 158 | contents.
|
|---|
| 159 | <p> A combobox emits two signals, <a href="#activated">activated</a>() and <a href="#highlighted">highlighted</a>(), when
|
|---|
| 160 | a new item has been activated (selected) or highlighted (made
|
|---|
| 161 | current). Both signals exist in two versions, one with a <a href="qstring.html">QString</a> argument and one with an <tt>int</tt> argument. If the user
|
|---|
| 162 | highlights or activates a pixmap, only the <tt>int</tt> signals are
|
|---|
| 163 | emitted. Whenever the text of an editable combobox is changed the
|
|---|
| 164 | <a href="#textChanged">textChanged</a>() signal is emitted.
|
|---|
| 165 | <p> When the user enters a new string in an editable combobox, the
|
|---|
| 166 | widget may or may not insert it, and it can insert it in several
|
|---|
| 167 | locations. The default policy is is <a href="#Policy-enum">AtBottom</a> but you can change
|
|---|
| 168 | this using <a href="#setInsertionPolicy">setInsertionPolicy</a>().
|
|---|
| 169 | <p> It is possible to constrain the input to an editable combobox
|
|---|
| 170 | using <a href="qvalidator.html">QValidator</a>; see <a href="#setValidator">setValidator</a>(). By default, any input is
|
|---|
| 171 | accepted.
|
|---|
| 172 | <p> If the combobox is not editable then it has a default
|
|---|
| 173 | <a href="qwidget.html#focusPolicy">focusPolicy</a>() of <a href="qwidget.html#FocusPolicy-enum">TabFocus</a>, i.e. it will not grab focus if
|
|---|
| 174 | clicked. This differs from both Windows and Motif. If the combobox
|
|---|
| 175 | is editable then it has a default focusPolicy() of <a href="qwidget.html#FocusPolicy-enum">StrongFocus</a>,
|
|---|
| 176 | i.e. it will grab focus if clicked.
|
|---|
| 177 | <p> A combobox can be populated using the insert functions,
|
|---|
| 178 | <a href="#insertStringList">insertStringList</a>() and <a href="#insertItem">insertItem</a>() for example. Items can be
|
|---|
| 179 | changed with <a href="#changeItem">changeItem</a>(). An item can be removed with
|
|---|
| 180 | <a href="#removeItem">removeItem</a>() and all items can be removed with <a href="#clear">clear</a>(). The text
|
|---|
| 181 | of the current item is returned by <a href="#currentText">currentText</a>(), and the text of
|
|---|
| 182 | a numbered item is returned with <a href="#text">text</a>(). The current item can be
|
|---|
| 183 | set with <a href="#setCurrentItem">setCurrentItem</a>() or <a href="#setCurrentText">setCurrentText</a>(). The number of items
|
|---|
| 184 | in the combobox is returned by <a href="#count">count</a>(); the maximum number of
|
|---|
| 185 | items can be set with <a href="#setMaxCount">setMaxCount</a>(). You can allow editing using
|
|---|
| 186 | <a href="#setEditable">setEditable</a>(). For editable comboboxes you can set auto-completion
|
|---|
| 187 | using <a href="#setAutoCompletion">setAutoCompletion</a>() and whether or not the user can add
|
|---|
| 188 | duplicates is set with <a href="#setDuplicatesEnabled">setDuplicatesEnabled</a>().
|
|---|
| 189 | <p> <img src="qcombo1-m.png">(Motif 1, read-only)<br clear=all>
|
|---|
| 190 | <img src="qcombo2-m.png">(Motif 2, editable)<br clear=all>
|
|---|
| 191 | <img src="qcombo3-m.png">(Motif 2, read-only)<br clear=all>
|
|---|
| 192 | <img src="qcombo1-w.png">(Windows style)
|
|---|
| 193 | <p> Depending on the style, QComboBox will use a <a href="qlistbox.html">QListBox</a> or a
|
|---|
| 194 | <a href="qpopupmenu.html">QPopupMenu</a> to display the list of items. See <a href="#setListBox">setListBox</a>() for
|
|---|
| 195 | more information.
|
|---|
| 196 | <p> <p>See also <a href="qlineedit.html">QLineEdit</a>, <a href="qlistbox.html">QListBox</a>, <a href="qspinbox.html">QSpinBox</a>, <a href="qradiobutton.html">QRadioButton</a>, <a href="qbuttongroup.html">QButtonGroup</a>, <a href="guibooks.html#fowler">GUI Design Handbook: Combo Box</a>, <a href="guibooks.html#fowler">GUI Design Handbook: Drop-Down List Box</a>, and <a href="basic.html">Basic Widgets</a>.
|
|---|
| 197 |
|
|---|
| 198 | <hr><h2>Member Type Documentation</h2>
|
|---|
| 199 | <h3 class=fn><a name="Policy-enum"></a>QComboBox::Policy</h3>
|
|---|
| 200 |
|
|---|
| 201 | <p> This enum specifies what the QComboBox should do when a new string
|
|---|
| 202 | is entered by the user.
|
|---|
| 203 | <ul>
|
|---|
| 204 | <li><tt>QComboBox::NoInsertion</tt> - the string will not be inserted into the
|
|---|
| 205 | combobox.
|
|---|
| 206 | <li><tt>QComboBox::AtTop</tt> - insert the string as the first item in the combobox.
|
|---|
| 207 | <li><tt>QComboBox::AtCurrent</tt> - replace the previously selected item with the
|
|---|
| 208 | string the user has entered.
|
|---|
| 209 | <li><tt>QComboBox::AtBottom</tt> - insert the string as the last item in the
|
|---|
| 210 | combobox.
|
|---|
| 211 | <li><tt>QComboBox::AfterCurrent</tt> - insert the string after the previously
|
|---|
| 212 | selected item.
|
|---|
| 213 | <li><tt>QComboBox::BeforeCurrent</tt> - insert the string before the previously
|
|---|
| 214 | selected item.
|
|---|
| 215 | </ul><p> <a href="#activated">activated</a>() is always emitted when the string is entered.
|
|---|
| 216 | <p> If inserting the new string would cause the combobox to breach its
|
|---|
| 217 | content size limit, the item at the other end of the list is
|
|---|
| 218 | deleted. The definition of "other end" is
|
|---|
| 219 | implementation-dependent.
|
|---|
| 220 |
|
|---|
| 221 | <hr><h2>Member Function Documentation</h2>
|
|---|
| 222 | <h3 class=fn><a name="QComboBox"></a>QComboBox::QComboBox ( <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 )
|
|---|
| 223 | </h3>
|
|---|
| 224 | Constructs a combobox widget with parent <em>parent</em> called <em>name</em>.
|
|---|
| 225 | <p> This constructor creates a popup list if the program uses <a href="motif-extension.html#Motif">Motif</a>
|
|---|
| 226 | (or Aqua) look and feel; this is compatible with Motif 1.x and
|
|---|
| 227 | Aqua.
|
|---|
| 228 | <p> Note: If you use this constructor to create your QComboBox, then
|
|---|
| 229 | the <a href="#pixmap">pixmap</a>() function will always return 0. To workaround this,
|
|---|
| 230 | use the other constructor.
|
|---|
| 231 | <p>
|
|---|
| 232 | <h3 class=fn><a name="QComboBox-2"></a>QComboBox::QComboBox ( bool rw, <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 )
|
|---|
| 233 | </h3>
|
|---|
| 234 | Constructs a combobox with a maximum size and either <a href="motif-extension.html#Motif">Motif</a> 2.0 or
|
|---|
| 235 | Windows look and feel.
|
|---|
| 236 | <p> The input field can be edited if <em>rw</em> is TRUE, otherwise the user
|
|---|
| 237 | may only choose one of the items in the combobox.
|
|---|
| 238 | <p> The <em>parent</em> and <em>name</em> arguments are passed on to the <a href="qwidget.html">QWidget</a>
|
|---|
| 239 | constructor.
|
|---|
| 240 |
|
|---|
| 241 | <h3 class=fn><a name="~QComboBox"></a>QComboBox::~QComboBox ()
|
|---|
| 242 | </h3>
|
|---|
| 243 | Destroys the combobox.
|
|---|
| 244 |
|
|---|
| 245 | <h3 class=fn>void <a name="activated"></a>QComboBox::activated ( int index )<tt> [signal]</tt>
|
|---|
| 246 | </h3>
|
|---|
| 247 |
|
|---|
| 248 | <p> This signal is emitted when a new item has been activated
|
|---|
| 249 | (selected). The <em>index</em> is the position of the item in the
|
|---|
| 250 | combobox.
|
|---|
| 251 | <p> This signal is not emitted if the item is changed
|
|---|
| 252 | programmatically, e.g. using <a href="#setCurrentItem">setCurrentItem</a>().
|
|---|
| 253 |
|
|---|
| 254 | <p>Examples: <a href="fileiconview-example.html#x877">fileiconview/mainwindow.cpp</a>, <a href="helpviewer-example.html#x981">helpviewer/helpwindow.cpp</a>, <a href="lineedits-example.html#x170">lineedits/lineedits.cpp</a>, <a href="listboxcombo-example.html#x1398">listboxcombo/listboxcombo.cpp</a>, and <a href="qmag-example.html#x1772">qmag/qmag.cpp</a>.
|
|---|
| 255 | <h3 class=fn>void <a name="activated-2"></a>QComboBox::activated ( const <a href="qstring.html">QString</a> & string )<tt> [signal]</tt>
|
|---|
| 256 | </h3>
|
|---|
| 257 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|---|
| 258 | <p> This signal is emitted when a new item has been activated
|
|---|
| 259 | (selected). <em>string</em> is the selected string.
|
|---|
| 260 | <p> You can also use the <a href="#activated">activated</a>(int) signal, but be aware that its
|
|---|
| 261 | argument is meaningful only for selected strings, not for user
|
|---|
| 262 | entered strings.
|
|---|
| 263 |
|
|---|
| 264 | <h3 class=fn>bool <a name="autoCompletion"></a>QComboBox::autoCompletion () const
|
|---|
| 265 | </h3><p>Returns TRUE if auto-completion is enabled; otherwise returns FALSE.
|
|---|
| 266 | See the <a href="qcombobox.html#autoCompletion-prop">"autoCompletion"</a> property for details.
|
|---|
| 267 | <h3 class=fn>bool <a name="autoResize"></a>QComboBox::autoResize () const
|
|---|
| 268 | </h3><p>Returns TRUE if auto resize is enabled; otherwise returns FALSE.
|
|---|
| 269 | See the <a href="qcombobox.html#autoResize-prop">"autoResize"</a> property for details.
|
|---|
| 270 | <h3 class=fn>void <a name="changeItem"></a>QComboBox::changeItem ( const <a href="qstring.html">QString</a> & t, int index )
|
|---|
| 271 | </h3>
|
|---|
| 272 | Replaces the item at position <em>index</em> with the text <em>t</em>.
|
|---|
| 273 |
|
|---|
| 274 | <h3 class=fn>void <a name="changeItem-2"></a>QComboBox::changeItem ( const <a href="qpixmap.html">QPixmap</a> & im, int index )
|
|---|
| 275 | </h3>
|
|---|
| 276 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|---|
| 277 | <p> Replaces the item at position <em>index</em> with the pixmap <em>im</em>,
|
|---|
| 278 | unless the combobox is editable.
|
|---|
| 279 | <p> <p>See also <a href="#insertItem">insertItem</a>().
|
|---|
| 280 |
|
|---|
| 281 | <h3 class=fn>void <a name="changeItem-3"></a>QComboBox::changeItem ( const <a href="qpixmap.html">QPixmap</a> & im, const <a href="qstring.html">QString</a> & t, int index )
|
|---|
| 282 | </h3>
|
|---|
| 283 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|---|
| 284 | <p> Replaces the item at position <em>index</em> with the pixmap <em>im</em> and
|
|---|
| 285 | the text <em>t</em>.
|
|---|
| 286 | <p> <p>See also <a href="#insertItem">insertItem</a>().
|
|---|
| 287 |
|
|---|
| 288 | <h3 class=fn>void <a name="clear"></a>QComboBox::clear ()<tt> [slot]</tt>
|
|---|
| 289 | </h3>
|
|---|
| 290 | Removes all combobox items.
|
|---|
| 291 |
|
|---|
| 292 | <h3 class=fn>void <a name="clearEdit"></a>QComboBox::clearEdit ()<tt> [slot]</tt>
|
|---|
| 293 | </h3>
|
|---|
| 294 | Clears the line edit without changing the combobox's contents.
|
|---|
| 295 | Does nothing if the combobox isn't editable.
|
|---|
| 296 | <p> This is particularly useful when using a combobox as a line edit
|
|---|
| 297 | with history. For example you can connect the combobox's
|
|---|
| 298 | <a href="#activated">activated</a>() signal to <a href="#clearEdit">clearEdit</a>() in order to present the user
|
|---|
| 299 | with a new, empty line as soon as Enter is pressed.
|
|---|
| 300 | <p> <p>See also <a href="#setEditText">setEditText</a>().
|
|---|
| 301 |
|
|---|
| 302 | <h3 class=fn>void <a name="clearValidator"></a>QComboBox::clearValidator ()<tt> [slot]</tt>
|
|---|
| 303 | </h3>
|
|---|
| 304 | This slot is equivalent to <a href="#setValidator">setValidator</a>( 0 ).
|
|---|
| 305 |
|
|---|
| 306 | <h3 class=fn>int <a name="count"></a>QComboBox::count () const
|
|---|
| 307 | </h3><p>Returns the number of items in the combobox.
|
|---|
| 308 | See the <a href="qcombobox.html#count-prop">"count"</a> property for details.
|
|---|
| 309 | <h3 class=fn>int <a name="currentItem"></a>QComboBox::currentItem () const
|
|---|
| 310 | </h3><p>Returns the index of the current item in the combobox.
|
|---|
| 311 | See the <a href="qcombobox.html#currentItem-prop">"currentItem"</a> property for details.
|
|---|
| 312 | <h3 class=fn><a href="qstring.html">QString</a> <a name="currentText"></a>QComboBox::currentText () const
|
|---|
| 313 | </h3><p>Returns the text of the combobox's current item.
|
|---|
| 314 | See the <a href="qcombobox.html#currentText-prop">"currentText"</a> property for details.
|
|---|
| 315 | <h3 class=fn>bool <a name="duplicatesEnabled"></a>QComboBox::duplicatesEnabled () const
|
|---|
| 316 | </h3><p>Returns TRUE if duplicates are allowed; otherwise returns FALSE.
|
|---|
| 317 | See the <a href="qcombobox.html#duplicatesEnabled-prop">"duplicatesEnabled"</a> property for details.
|
|---|
| 318 | <h3 class=fn>bool <a name="editable"></a>QComboBox::editable () const
|
|---|
| 319 | </h3><p>Returns TRUE if the combobox is editable; otherwise returns FALSE.
|
|---|
| 320 | See the <a href="qcombobox.html#editable-prop">"editable"</a> property for details.
|
|---|
| 321 | <h3 class=fn>void <a name="highlighted"></a>QComboBox::highlighted ( int index )<tt> [signal]</tt>
|
|---|
| 322 | </h3>
|
|---|
| 323 |
|
|---|
| 324 | <p> This signal is emitted when a new item has been set to be the
|
|---|
| 325 | current item. The <em>index</em> is the position of the item in the
|
|---|
| 326 | combobox.
|
|---|
| 327 | <p> This signal is not emitted if the item is changed
|
|---|
| 328 | programmatically, e.g. using <a href="#setCurrentItem">setCurrentItem</a>().
|
|---|
| 329 |
|
|---|
| 330 | <h3 class=fn>void <a name="highlighted-2"></a>QComboBox::highlighted ( const <a href="qstring.html">QString</a> & string )<tt> [signal]</tt>
|
|---|
| 331 | </h3>
|
|---|
| 332 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|---|
| 333 | <p> This signal is emitted when a new item has been set to be the
|
|---|
| 334 | current item. <em>string</em> is the item's text.
|
|---|
| 335 | <p> You can also use the <a href="#highlighted">highlighted</a>(int) signal.
|
|---|
| 336 |
|
|---|
| 337 | <h3 class=fn>void <a name="insertItem"></a>QComboBox::insertItem ( const <a href="qstring.html">QString</a> & t, int index = -1 )
|
|---|
| 338 | </h3>
|
|---|
| 339 | Inserts a text item with text <em>t</em>, at position <em>index</em>. The item
|
|---|
| 340 | will be appended if <em>index</em> is negative.
|
|---|
| 341 |
|
|---|
| 342 | <p>Examples: <a href="tutorial2-09.html#x2633">chart/optionsform.cpp</a>, <a href="fileiconview-example.html#x879">fileiconview/mainwindow.cpp</a>, <a href="helpviewer-example.html#x983">helpviewer/helpwindow.cpp</a>, <a href="lineedits-example.html#x171">lineedits/lineedits.cpp</a>, <a href="listboxcombo-example.html#x1399">listboxcombo/listboxcombo.cpp</a>, <a href="regexptester-example.html#x2479">regexptester/regexptester.cpp</a>, and <a href="tictac-example.html#x23">tictac/tictac.cpp</a>.
|
|---|
| 343 | <h3 class=fn>void <a name="insertItem-2"></a>QComboBox::insertItem ( const <a href="qpixmap.html">QPixmap</a> & pixmap, int index = -1 )
|
|---|
| 344 | </h3>
|
|---|
| 345 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|---|
| 346 | <p> Inserts a <em>pixmap</em> item at position <em>index</em>. The item will be
|
|---|
| 347 | appended if <em>index</em> is negative.
|
|---|
| 348 |
|
|---|
| 349 | <h3 class=fn>void <a name="insertItem-3"></a>QComboBox::insertItem ( const <a href="qpixmap.html">QPixmap</a> & pixmap, const <a href="qstring.html">QString</a> & text, int index = -1 )
|
|---|
| 350 | </h3>
|
|---|
| 351 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|---|
| 352 | <p> Inserts a <em>pixmap</em> item with additional text <em>text</em> at position
|
|---|
| 353 | <em>index</em>. The item will be appended if <em>index</em> is negative.
|
|---|
| 354 |
|
|---|
| 355 | <h3 class=fn>void <a name="insertStrList"></a>QComboBox::insertStrList ( const char ** strings, int numStrings = -1, int index = -1 )
|
|---|
| 356 | </h3>
|
|---|
| 357 | Inserts the array of char * <em>strings</em> at position <em>index</em> in the
|
|---|
| 358 | combobox.
|
|---|
| 359 | <p> The <em>numStrings</em> argument is the number of strings. If <em>numStrings</em> is -1 (default), the <em>strings</em> array must be
|
|---|
| 360 | terminated with 0.
|
|---|
| 361 | <p> Example:
|
|---|
| 362 | <pre>
|
|---|
| 363 | static const char* items[] = { "red", "green", "blue", 0 };
|
|---|
| 364 | combo->insertStrList( items );
|
|---|
| 365 | </pre>
|
|---|
| 366 |
|
|---|
| 367 | <p> <p>See also <a href="#insertStringList">insertStringList</a>().
|
|---|
| 368 |
|
|---|
| 369 | <p>Example: <a href="qmag-example.html#x1773">qmag/qmag.cpp</a>.
|
|---|
| 370 | <h3 class=fn>void <a name="insertStrList-2"></a>QComboBox::insertStrList ( const <a href="qstrlist.html">QStrList</a> & list, int index = -1 )
|
|---|
| 371 | </h3>
|
|---|
| 372 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|---|
| 373 | <p> Inserts the <em>list</em> of strings at position <em>index</em> in the
|
|---|
| 374 | combobox.
|
|---|
| 375 | <p> This is only for compatibility since it does not support Unicode
|
|---|
| 376 | strings. See <a href="#insertStringList">insertStringList</a>().
|
|---|
| 377 |
|
|---|
| 378 | <h3 class=fn>void <a name="insertStrList-3"></a>QComboBox::insertStrList ( const <a href="qstrlist.html">QStrList</a> * list, int index = -1 )
|
|---|
| 379 | </h3>
|
|---|
| 380 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|---|
| 381 | <p> Inserts the <em>list</em> of strings at position <em>index</em> in the
|
|---|
| 382 | combobox.
|
|---|
| 383 | <p> This is only for compatibility since it does not support Unicode
|
|---|
| 384 | strings. See <a href="#insertStringList">insertStringList</a>().
|
|---|
| 385 |
|
|---|
| 386 | <h3 class=fn>void <a name="insertStringList"></a>QComboBox::insertStringList ( const <a href="qstringlist.html">QStringList</a> & list, int index = -1 )
|
|---|
| 387 | </h3>
|
|---|
| 388 | Inserts the <em>list</em> of strings at position <em>index</em> in the
|
|---|
| 389 | combobox.
|
|---|
| 390 |
|
|---|
| 391 | <h3 class=fn><a href="qcombobox.html#Policy-enum">Policy</a> <a name="insertionPolicy"></a>QComboBox::insertionPolicy () const
|
|---|
| 392 | </h3><p>Returns the position of the items inserted by the user.
|
|---|
| 393 | See the <a href="qcombobox.html#insertionPolicy-prop">"insertionPolicy"</a> property for details.
|
|---|
| 394 | <h3 class=fn><a href="qlineedit.html">QLineEdit</a> * <a name="lineEdit"></a>QComboBox::lineEdit () const
|
|---|
| 395 | </h3>
|
|---|
| 396 | Returns the line edit, or 0 if there is no line edit.
|
|---|
| 397 | <p> Only editable listboxes have a line editor.
|
|---|
| 398 |
|
|---|
| 399 | <h3 class=fn><a href="qlistbox.html">QListBox</a> * <a name="listBox"></a>QComboBox::listBox () const
|
|---|
| 400 | </h3>
|
|---|
| 401 | Returns the current list box, or 0 if there is no list box.
|
|---|
| 402 | (QComboBox can use <a href="qpopupmenu.html">QPopupMenu</a> instead of <a href="qlistbox.html">QListBox</a>.) Provided to
|
|---|
| 403 | match <a href="#setListBox">setListBox</a>().
|
|---|
| 404 | <p> <p>See also <a href="#setListBox">setListBox</a>().
|
|---|
| 405 |
|
|---|
| 406 | <p>Example: <a href="listboxcombo-example.html#x1400">listboxcombo/listboxcombo.cpp</a>.
|
|---|
| 407 | <h3 class=fn>int <a name="maxCount"></a>QComboBox::maxCount () const
|
|---|
| 408 | </h3><p>Returns the maximum number of items allowed in the combobox.
|
|---|
| 409 | See the <a href="qcombobox.html#maxCount-prop">"maxCount"</a> property for details.
|
|---|
| 410 | <h3 class=fn>const <a href="qpixmap.html">QPixmap</a> * <a name="pixmap"></a>QComboBox::pixmap ( int index ) const
|
|---|
| 411 | </h3>
|
|---|
| 412 | Returns the pixmap item at position <em>index</em>, or 0 if the item is
|
|---|
| 413 | not a pixmap.
|
|---|
| 414 |
|
|---|
| 415 | <h3 class=fn>void <a name="popup"></a>QComboBox::popup ()<tt> [virtual]</tt>
|
|---|
| 416 | </h3>
|
|---|
| 417 | Pops up the combobox popup list.
|
|---|
| 418 | <p> If the list is empty, no items appear.
|
|---|
| 419 |
|
|---|
| 420 | <h3 class=fn>void <a name="removeItem"></a>QComboBox::removeItem ( int index )
|
|---|
| 421 | </h3>
|
|---|
| 422 | Removes the item at position <em>index</em>.
|
|---|
| 423 |
|
|---|
| 424 | <h3 class=fn>void <a name="setAutoCompletion"></a>QComboBox::setAutoCompletion ( bool )<tt> [virtual]</tt>
|
|---|
| 425 | </h3><p>Sets whether auto-completion is enabled.
|
|---|
| 426 | See the <a href="qcombobox.html#autoCompletion-prop">"autoCompletion"</a> property for details.
|
|---|
| 427 | <h3 class=fn>void <a name="setAutoResize"></a>QComboBox::setAutoResize ( bool )<tt> [virtual]</tt>
|
|---|
| 428 | </h3><p>Sets whether auto resize is enabled.
|
|---|
| 429 | See the <a href="qcombobox.html#autoResize-prop">"autoResize"</a> property for details.
|
|---|
| 430 | <h3 class=fn>void <a name="setCurrentItem"></a>QComboBox::setCurrentItem ( int index )<tt> [virtual]</tt>
|
|---|
| 431 | </h3><p>Sets the index of the current item in the combobox to <em>index</em>.
|
|---|
| 432 | See the <a href="qcombobox.html#currentItem-prop">"currentItem"</a> property for details.
|
|---|
| 433 | <h3 class=fn>void <a name="setCurrentText"></a>QComboBox::setCurrentText ( const <a href="qstring.html">QString</a> & )<tt> [virtual]</tt>
|
|---|
| 434 | </h3><p>Sets the text of the combobox's current item.
|
|---|
| 435 | See the <a href="qcombobox.html#currentText-prop">"currentText"</a> property for details.
|
|---|
| 436 | <h3 class=fn>void <a name="setDuplicatesEnabled"></a>QComboBox::setDuplicatesEnabled ( bool enable )
|
|---|
| 437 | </h3><p>Sets whether duplicates are allowed to <em>enable</em>.
|
|---|
| 438 | See the <a href="qcombobox.html#duplicatesEnabled-prop">"duplicatesEnabled"</a> property for details.
|
|---|
| 439 | <h3 class=fn>void <a name="setEditText"></a>QComboBox::setEditText ( const <a href="qstring.html">QString</a> & newText )<tt> [virtual slot]</tt>
|
|---|
| 440 | </h3>
|
|---|
| 441 | Sets the text in the line edit to <em>newText</em> without changing the
|
|---|
| 442 | combobox's contents. Does nothing if the combobox isn't editable.
|
|---|
| 443 | <p> This is useful e.g. for providing a good starting point for the
|
|---|
| 444 | user's editing and entering the change in the combobox only when
|
|---|
| 445 | the user presses Enter.
|
|---|
| 446 | <p> <p>See also <a href="#clearEdit">clearEdit</a>() and <a href="#insertItem">insertItem</a>().
|
|---|
| 447 |
|
|---|
| 448 | <h3 class=fn>void <a name="setEditable"></a>QComboBox::setEditable ( bool )
|
|---|
| 449 | </h3><p>Sets whether the combobox is editable.
|
|---|
| 450 | See the <a href="qcombobox.html#editable-prop">"editable"</a> property for details.
|
|---|
| 451 | <h3 class=fn>void <a name="setFont"></a>QComboBox::setFont ( const <a href="qfont.html">QFont</a> & font )<tt> [virtual]</tt>
|
|---|
| 452 | </h3>
|
|---|
| 453 | Sets the font for both the combobox button and the combobox popup
|
|---|
| 454 | list to <em>font</em>.
|
|---|
| 455 |
|
|---|
| 456 | <p>Reimplemented from <a href="qwidget.html#setFont">QWidget</a>.
|
|---|
| 457 | <h3 class=fn>void <a name="setInsertionPolicy"></a>QComboBox::setInsertionPolicy ( <a href="qcombobox.html#Policy-enum">Policy</a> policy )<tt> [virtual]</tt>
|
|---|
| 458 | </h3><p>Sets the position of the items inserted by the user to <em>policy</em>.
|
|---|
| 459 | See the <a href="qcombobox.html#insertionPolicy-prop">"insertionPolicy"</a> property for details.
|
|---|
| 460 | <h3 class=fn>void <a name="setLineEdit"></a>QComboBox::setLineEdit ( <a href="qlineedit.html">QLineEdit</a> * edit )<tt> [virtual]</tt>
|
|---|
| 461 | </h3>
|
|---|
| 462 | Sets the line edit to use <em>edit</em> instead of the current line edit.
|
|---|
| 463 |
|
|---|
| 464 | <h3 class=fn>void <a name="setListBox"></a>QComboBox::setListBox ( <a href="qlistbox.html">QListBox</a> * newListBox )<tt> [virtual]</tt>
|
|---|
| 465 | </h3>
|
|---|
| 466 | Sets the combobox to use <em>newListBox</em> instead of the current list
|
|---|
| 467 | box or popup. As a side effect, it clears the combobox of its
|
|---|
| 468 | current contents.
|
|---|
| 469 | <p> <b>Warning:</b> QComboBox assumes that newListBox->text(n) returns
|
|---|
| 470 | non-null for 0 <= n < newListbox->count(). This assumption is
|
|---|
| 471 | necessary because of the line edit in QComboBox.
|
|---|
| 472 |
|
|---|
| 473 | <h3 class=fn>void <a name="setMaxCount"></a>QComboBox::setMaxCount ( int )<tt> [virtual]</tt>
|
|---|
| 474 | </h3><p>Sets the maximum number of items allowed in the combobox.
|
|---|
| 475 | See the <a href="qcombobox.html#maxCount-prop">"maxCount"</a> property for details.
|
|---|
| 476 | <h3 class=fn>void <a name="setPalette"></a>QComboBox::setPalette ( const <a href="qpalette.html">QPalette</a> & palette )<tt> [virtual]</tt>
|
|---|
| 477 | </h3>
|
|---|
| 478 | Sets the palette for both the combobox button and the combobox
|
|---|
| 479 | popup list to <em>palette</em>.
|
|---|
| 480 |
|
|---|
| 481 | <p>Reimplemented from <a href="qwidget.html#setPalette">QWidget</a>.
|
|---|
| 482 | <h3 class=fn>void <a name="setSizeLimit"></a>QComboBox::setSizeLimit ( int )<tt> [virtual]</tt>
|
|---|
| 483 | </h3><p>Sets the maximum on-screen size of the combobox.
|
|---|
| 484 | See the <a href="qcombobox.html#sizeLimit-prop">"sizeLimit"</a> property for details.
|
|---|
| 485 | <h3 class=fn>void <a name="setValidator"></a>QComboBox::setValidator ( const <a href="qvalidator.html">QValidator</a> * v )<tt> [virtual]</tt>
|
|---|
| 486 | </h3>
|
|---|
| 487 | Applies the validator <em>v</em> to the combobox so that only text which
|
|---|
| 488 | is valid according to <em>v</em> is accepted.
|
|---|
| 489 | <p> This function does nothing if the combobox is not editable.
|
|---|
| 490 | <p> <p>See also <a href="#validator">validator</a>(), <a href="#clearValidator">clearValidator</a>(), and <a href="qvalidator.html">QValidator</a>.
|
|---|
| 491 |
|
|---|
| 492 | <h3 class=fn>int <a name="sizeLimit"></a>QComboBox::sizeLimit () const
|
|---|
| 493 | </h3><p>Returns the maximum on-screen size of the combobox.
|
|---|
| 494 | See the <a href="qcombobox.html#sizeLimit-prop">"sizeLimit"</a> property for details.
|
|---|
| 495 | <h3 class=fn><a href="qstring.html">QString</a> <a name="text"></a>QComboBox::text ( int index ) const
|
|---|
| 496 | </h3>
|
|---|
| 497 | Returns the text item at position <em>index</em>, or <a href="qstring.html#QString-null">QString::null</a> if
|
|---|
| 498 | the item is not a string.
|
|---|
| 499 | <p> <p>See also <a href="#currentText-prop">currentText</a>.
|
|---|
| 500 |
|
|---|
| 501 | <p>Examples: <a href="fileiconview-example.html#x882">fileiconview/mainwindow.cpp</a> and <a href="helpviewer-example.html#x985">helpviewer/helpwindow.cpp</a>.
|
|---|
| 502 | <h3 class=fn>void <a name="textChanged"></a>QComboBox::textChanged ( const <a href="qstring.html">QString</a> & string )<tt> [signal]</tt>
|
|---|
| 503 | </h3>
|
|---|
| 504 |
|
|---|
| 505 | <p> This signal is used for editable comboboxes. It is emitted
|
|---|
| 506 | whenever the contents of the text entry field changes. <em>string</em>
|
|---|
| 507 | contains the new text.
|
|---|
| 508 |
|
|---|
| 509 | <h3 class=fn>const <a href="qvalidator.html">QValidator</a> * <a name="validator"></a>QComboBox::validator () const
|
|---|
| 510 | </h3>
|
|---|
| 511 | Returns the validator which constrains editing for this combobox
|
|---|
| 512 | if there is one; otherwise returns 0.
|
|---|
| 513 | <p> <p>See also <a href="#setValidator">setValidator</a>(), <a href="#clearValidator">clearValidator</a>(), and <a href="qvalidator.html">QValidator</a>.
|
|---|
| 514 |
|
|---|
| 515 | <hr><h2>Property Documentation</h2>
|
|---|
| 516 | <h3 class=fn>bool <a name="autoCompletion-prop"></a>autoCompletion</h3>
|
|---|
| 517 | <p>This property holds whether auto-completion is enabled.
|
|---|
| 518 | <p>This property can only be set for editable comboboxes, for
|
|---|
| 519 | non-editable comboboxes it has no effect. It is FALSE by default.
|
|---|
| 520 |
|
|---|
| 521 | <p>Set this property's value with <a href="#setAutoCompletion">setAutoCompletion</a>() and get this property's value with <a href="#autoCompletion">autoCompletion</a>().
|
|---|
| 522 | <h3 class=fn>bool <a name="autoMask-prop"></a>autoMask</h3>
|
|---|
| 523 | <p>This property holds whether the combobox is automatically masked.
|
|---|
| 524 | <p><p><p>See also <a href="qwidget.html#autoMask-prop">QWidget::autoMask</a>.
|
|---|
| 525 |
|
|---|
| 526 | <h3 class=fn>bool <a name="autoResize-prop"></a>autoResize</h3> <p>This property holds whether auto resize is enabled.
|
|---|
| 527 | <p><b>This property is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
|
|---|
| 528 | <p> If this property is set to TRUE then the combobox will resize itself
|
|---|
| 529 | whenever its contents change. The default is FALSE.
|
|---|
| 530 |
|
|---|
| 531 | <p>Set this property's value with <a href="#setAutoResize">setAutoResize</a>() and get this property's value with <a href="#autoResize">autoResize</a>().
|
|---|
| 532 | <h3 class=fn>int <a name="count-prop"></a>count</h3>
|
|---|
| 533 | <p>This property holds the number of items in the combobox.
|
|---|
| 534 | <p>
|
|---|
| 535 | <p>Get this property's value with <a href="#count">count</a>().
|
|---|
| 536 | <h3 class=fn>int <a name="currentItem-prop"></a>currentItem</h3>
|
|---|
| 537 | <p>This property holds the index of the current item in the combobox.
|
|---|
| 538 | <p>Note that the <a href="#activated">activated</a>() and <a href="#highlighted">highlighted</a>() signals are only
|
|---|
| 539 | emitted when the user changes the current item, not when it is
|
|---|
| 540 | changed programmatically.
|
|---|
| 541 |
|
|---|
| 542 | <p>Set this property's value with <a href="#setCurrentItem">setCurrentItem</a>() and get this property's value with <a href="#currentItem">currentItem</a>().
|
|---|
| 543 | <h3 class=fn><a href="qstring.html">QString</a> <a name="currentText-prop"></a>currentText</h3>
|
|---|
| 544 | <p>This property holds the text of the combobox's current item.
|
|---|
| 545 | <p>
|
|---|
| 546 | <p>Set this property's value with <a href="#setCurrentText">setCurrentText</a>() and get this property's value with <a href="#currentText">currentText</a>().
|
|---|
| 547 | <h3 class=fn>bool <a name="duplicatesEnabled-prop"></a>duplicatesEnabled</h3>
|
|---|
| 548 | <p>This property holds whether duplicates are allowed.
|
|---|
| 549 | <p>If the combobox is editable and the user enters some text in the
|
|---|
| 550 | combobox's lineedit and presses Enter (and the <a href="#insertionPolicy">insertionPolicy</a>()
|
|---|
| 551 | is not <a href="#Policy-enum">NoInsertion</a>), then what happens is this:
|
|---|
| 552 | <ul>
|
|---|
| 553 | <li> If the text is not already in the list, the text is inserted.
|
|---|
| 554 | <li> If the text is in the list and this property is TRUE (the
|
|---|
| 555 | default), the text is inserted.
|
|---|
| 556 | <li> If the text is in the list and this property is FALSE, the text
|
|---|
| 557 | is <em>not</em> inserted; instead the item which has matching text becomes
|
|---|
| 558 | the current item.
|
|---|
| 559 | </ul>
|
|---|
| 560 | <p> This property only affects user-interaction. You can use
|
|---|
| 561 | <a href="#insertItem">insertItem</a>() to insert duplicates if you wish regardless of this
|
|---|
| 562 | setting.
|
|---|
| 563 |
|
|---|
| 564 | <p>Set this property's value with <a href="#setDuplicatesEnabled">setDuplicatesEnabled</a>() and get this property's value with <a href="#duplicatesEnabled">duplicatesEnabled</a>().
|
|---|
| 565 | <h3 class=fn>bool <a name="editable-prop"></a>editable</h3>
|
|---|
| 566 | <p>This property holds whether the combobox is editable.
|
|---|
| 567 | <p>This property's default is FALSE. Note that the combobox will be
|
|---|
| 568 | cleared if this property is set to TRUE for a 1.x <a href="motif-extension.html#Motif">Motif</a> style
|
|---|
| 569 | combobox. To avoid this, use <a href="#setEditable">setEditable</a>() before inserting any
|
|---|
| 570 | items. Also note that the 1.x version of Motif didn't have any
|
|---|
| 571 | editable comboboxes, so the combobox will change it's appearance
|
|---|
| 572 | to a 2.0 style Motif combobox is it is set to be editable.
|
|---|
| 573 |
|
|---|
| 574 | <p>Set this property's value with <a href="#setEditable">setEditable</a>() and get this property's value with <a href="#editable">editable</a>().
|
|---|
| 575 | <h3 class=fn><a href="qcombobox.html#Policy-enum">Policy</a> <a name="insertionPolicy-prop"></a>insertionPolicy</h3>
|
|---|
| 576 | <p>This property holds the position of the items inserted by the user.
|
|---|
| 577 | <p>The default insertion policy is <a href="#Policy-enum">AtBottom</a>. See <a href="#Policy-enum">Policy</a>.
|
|---|
| 578 |
|
|---|
| 579 | <p>Set this property's value with <a href="#setInsertionPolicy">setInsertionPolicy</a>() and get this property's value with <a href="#insertionPolicy">insertionPolicy</a>().
|
|---|
| 580 | <h3 class=fn>int <a name="maxCount-prop"></a>maxCount</h3>
|
|---|
| 581 | <p>This property holds the maximum number of items allowed in the combobox.
|
|---|
| 582 | <p>
|
|---|
| 583 | <p>Set this property's value with <a href="#setMaxCount">setMaxCount</a>() and get this property's value with <a href="#maxCount">maxCount</a>().
|
|---|
| 584 | <h3 class=fn>int <a name="sizeLimit-prop"></a>sizeLimit</h3>
|
|---|
| 585 | <p>This property holds the maximum on-screen size of the combobox.
|
|---|
| 586 | <p>This property is ignored for both <a href="motif-extension.html#Motif">Motif</a> 1.x style and non-editable
|
|---|
| 587 | comboboxes in Mac style. The default limit is ten
|
|---|
| 588 | lines. If the number of items in the combobox is or grows larger
|
|---|
| 589 | than lines, a scrollbar is added.
|
|---|
| 590 |
|
|---|
| 591 | <p>Set this property's value with <a href="#setSizeLimit">setSizeLimit</a>() and get this property's value with <a href="#sizeLimit">sizeLimit</a>().
|
|---|
| 592 | <!-- eof -->
|
|---|
| 593 | <hr><p>
|
|---|
| 594 | This file is part of the <a href="index.html">Qt toolkit</a>.
|
|---|
| 595 | Copyright © 1995-2007
|
|---|
| 596 | <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
|
|---|
| 597 | <table width=100% cellspacing=0 border=0><tr>
|
|---|
| 598 | <td>Copyright © 2007
|
|---|
| 599 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|---|
| 600 | <td align=right><div align=right>Qt 3.3.8</div>
|
|---|
| 601 | </table></div></address></body>
|
|---|
| 602 | </html>
|
|---|
