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| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QAction Class Reference</h1>
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| 33 |
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| 34 | <p>The QAction class provides an abstract user interface
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| 35 | action that can appear both in menus and tool bars.
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| 36 | <a href="#details">More...</a>
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| 37 | <p><tt>#include <<a href="qaction-h.html">qaction.h</a>></tt>
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| 38 | <p>Inherits <a href="qobject.html">QObject</a>.
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| 39 | <p>Inherited by <a href="qactiongroup.html">QActionGroup</a>.
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| 40 | <p><a href="qaction-members.html">List of all member functions.</a>
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| 41 | <h2>Public Members</h2>
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| 42 | <ul>
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| 43 | <li class=fn><a href="#QAction"><b>QAction</b></a> ( QObject * parent, const char * name = 0 )</li>
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| 44 | <li class=fn><a href="#QAction-2"><b>QAction</b></a> ( const QString & menuText, QKeySequence accel, QObject * parent, const char * name = 0 )</li>
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| 45 | <li class=fn><a href="#QAction-3"><b>QAction</b></a> ( const QIconSet & icon, const QString & menuText, QKeySequence accel, QObject * parent, const char * name = 0 )</li>
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| 46 | <li class=fn>QAction ( const QString & text, const QIconSet & icon, const QString & menuText, QKeySequence accel, QObject * parent, const char * name = 0, bool toggle = FALSE ) <em>(obsolete)</em></li>
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| 47 | <li class=fn>QAction ( const QString & text, const QString & menuText, QKeySequence accel, QObject * parent, const char * name = 0, bool toggle = FALSE ) <em>(obsolete)</em></li>
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| 48 | <li class=fn>QAction ( QObject * parent, const char * name, bool toggle ) <em>(obsolete)</em></li>
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| 49 | <li class=fn><a href="#~QAction"><b>~QAction</b></a> ()</li>
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| 50 | <li class=fn>virtual void <a href="#setIconSet"><b>setIconSet</b></a> ( const QIconSet & )</li>
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| 51 | <li class=fn>QIconSet <a href="#iconSet"><b>iconSet</b></a> () const</li>
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| 52 | <li class=fn>virtual void <a href="#setText"><b>setText</b></a> ( const QString & )</li>
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| 53 | <li class=fn>QString <a href="#text"><b>text</b></a> () const</li>
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| 54 | <li class=fn>virtual void <a href="#setMenuText"><b>setMenuText</b></a> ( const QString & )</li>
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| 55 | <li class=fn>QString <a href="#menuText"><b>menuText</b></a> () const</li>
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| 56 | <li class=fn>virtual void <a href="#setToolTip"><b>setToolTip</b></a> ( const QString & )</li>
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| 57 | <li class=fn>QString <a href="#toolTip"><b>toolTip</b></a> () const</li>
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| 58 | <li class=fn>virtual void <a href="#setStatusTip"><b>setStatusTip</b></a> ( const QString & )</li>
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| 59 | <li class=fn>QString <a href="#statusTip"><b>statusTip</b></a> () const</li>
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| 60 | <li class=fn>virtual void <a href="#setWhatsThis"><b>setWhatsThis</b></a> ( const QString & )</li>
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| 61 | <li class=fn>QString <a href="#whatsThis"><b>whatsThis</b></a> () const</li>
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| 62 | <li class=fn>virtual void <a href="#setAccel"><b>setAccel</b></a> ( const QKeySequence & key )</li>
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| 63 | <li class=fn>QKeySequence <a href="#accel"><b>accel</b></a> () const</li>
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| 64 | <li class=fn>virtual void <a href="#setToggleAction"><b>setToggleAction</b></a> ( bool )</li>
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| 65 | <li class=fn>bool <a href="#isToggleAction"><b>isToggleAction</b></a> () const</li>
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| 66 | <li class=fn>bool <a href="#isOn"><b>isOn</b></a> () const</li>
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| 67 | <li class=fn>bool <a href="#isEnabled"><b>isEnabled</b></a> () const</li>
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| 68 | <li class=fn>bool <a href="#isVisible"><b>isVisible</b></a> () const</li>
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| 69 | <li class=fn>virtual bool <a href="#addTo"><b>addTo</b></a> ( QWidget * w )</li>
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| 70 | <li class=fn>virtual bool <a href="#removeFrom"><b>removeFrom</b></a> ( QWidget * w )</li>
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| 71 | </ul>
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| 72 | <h2>Public Slots</h2>
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| 73 | <ul>
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| 74 | <li class=fn>void <a href="#activate"><b>activate</b></a> ()</li>
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| 75 | <li class=fn>void <a href="#toggle"><b>toggle</b></a> ()</li>
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| 76 | <li class=fn>virtual void <a href="#setOn"><b>setOn</b></a> ( bool )</li>
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| 77 | <li class=fn>virtual void <a href="#setEnabled"><b>setEnabled</b></a> ( bool )</li>
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| 78 | <li class=fn>void <a href="#setDisabled"><b>setDisabled</b></a> ( bool disable )</li>
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| 79 | <li class=fn>void <a href="#setVisible"><b>setVisible</b></a> ( bool )</li>
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| 80 | </ul>
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| 81 | <h2>Signals</h2>
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| 82 | <ul>
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| 83 | <li class=fn>void <a href="#activated"><b>activated</b></a> ()</li>
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| 84 | <li class=fn>void <a href="#toggled"><b>toggled</b></a> ( bool on )</li>
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| 85 | </ul>
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| 86 | <h2>Properties</h2>
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| 87 | <ul>
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| 88 | <li class=fn>QKeySequence <a href="#accel-prop"><b>accel</b></a> - the action's accelerator key</li>
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| 89 | <li class=fn>bool <a href="#enabled-prop"><b>enabled</b></a> - whether the action is enabled</li>
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| 90 | <li class=fn>QIconSet <a href="#iconSet-prop"><b>iconSet</b></a> - the action's icon</li>
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| 91 | <li class=fn>QString <a href="#menuText-prop"><b>menuText</b></a> - the action's menu text</li>
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| 92 | <li class=fn>bool <a href="#on-prop"><b>on</b></a> - whether a toggle action is on</li>
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| 93 | <li class=fn>QString <a href="#statusTip-prop"><b>statusTip</b></a> - the action's status tip</li>
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| 94 | <li class=fn>QString <a href="#text-prop"><b>text</b></a> - the action's descriptive text</li>
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| 95 | <li class=fn>bool <a href="#toggleAction-prop"><b>toggleAction</b></a> - whether the action is a toggle action</li>
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| 96 | <li class=fn>QString <a href="#toolTip-prop"><b>toolTip</b></a> - the action's tool tip</li>
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| 97 | <li class=fn>bool <a href="#visible-prop"><b>visible</b></a> - whether the action can be seen (e.g. in menus and toolbars)</li>
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| 98 | <li class=fn>QString <a href="#whatsThis-prop"><b>whatsThis</b></a> - the action's "What's This?" help text</li>
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| 99 | </ul>
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| 100 | <h2>Protected Members</h2>
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| 101 | <ul>
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| 102 | <li class=fn>virtual void <a href="#addedTo"><b>addedTo</b></a> ( QWidget * actionWidget, QWidget * container )</li>
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| 103 | <li class=fn>virtual void <a href="#addedTo-2"><b>addedTo</b></a> ( int index, QPopupMenu * menu )</li>
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| 104 | </ul>
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| 105 | <hr><a name="details"></a><h2>Detailed Description</h2>
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| 106 |
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| 107 |
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| 108 | The QAction class provides an abstract user interface
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| 109 | action that can appear both in menus and tool bars.
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| 110 | <p>
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| 111 |
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| 112 |
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| 113 | <p> In GUI applications many commands can be invoked via a menu
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| 114 | option, a toolbar button and a keyboard accelerator. Since the
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| 115 | same action must be performed regardless of how the action was
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| 116 | invoked, and since the menu and toolbar should be kept in sync, it
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| 117 | is useful to represent a command as an <em>action</em>. An action can be
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| 118 | added to a menu and a toolbar and will automatically keep them in
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| 119 | sync. For example, if the user presses a Bold toolbar button the
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| 120 | Bold menu item will automatically be checked.
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| 121 | <p> A QAction may contain an icon, a menu text, an accelerator, a
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| 122 | status text, a whats this text and a tool tip. Most of these can
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| 123 | be set in the constructor. They can also be set independently with
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| 124 | <a href="#setIconSet">setIconSet</a>(), <a href="#setText">setText</a>(), <a href="#setMenuText">setMenuText</a>(), <a href="#setToolTip">setToolTip</a>(),
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| 125 | <a href="#setStatusTip">setStatusTip</a>(), <a href="#setWhatsThis">setWhatsThis</a>() and <a href="#setAccel">setAccel</a>().
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| 126 | <p> An action may be a toggle action e.g. a Bold toolbar button, or a
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| 127 | command action, e.g. 'Open File' to invoke an open file dialog.
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| 128 | Toggle actions emit the <a href="#toggled">toggled</a>() signal when their state changes.
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| 129 | Both command and toggle actions emit the <a href="#activated">activated</a>() signal when
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| 130 | they are invoked. Use <a href="#setToggleAction">setToggleAction</a>() to set an action's toggled
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| 131 | status. To see if an action is a toggle action use
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| 132 | <a href="#isToggleAction">isToggleAction</a>(). A toggle action may be "on", <a href="#isOn">isOn</a>() returns
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| 133 | TRUE, or "off", isOn() returns FALSE.
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| 134 | <p> Actions are added to widgets (menus or toolbars) using <a href="#addTo">addTo</a>(),
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| 135 | and removed using <a href="#removeFrom">removeFrom</a>().
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| 136 | <p> Once a QAction has been created it should be added to the relevant
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| 137 | menu and toolbar and then connected to the slot which will perform
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| 138 | the action. For example:
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| 139 | <p>
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| 140 |
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| 141 | <pre> fileOpenAction = new QAction( QPixmap( fileopen ), "&Open...",
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| 142 | CTRL+Key_O, this, "open" );
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| 143 | <a href="qobject.html#connect">connect</a>( fileOpenAction, SIGNAL( <a href="#activated">activated</a>() ) , this, SLOT( choose() ) );
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| 144 | </pre>
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| 145 | <p> We create a "File Save" action with a menu text of "&Save" and
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| 146 | <em>Ctrl+S</em> as the keyboard accelerator. We connect the
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| 147 | fileSaveAction's <a href="#activated">activated</a>() signal to our own save() slot. Note
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| 148 | that at this point there is no menu or toolbar action, we'll add
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| 149 | them next:
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| 150 | <p> <pre> <a href="qtoolbar.html">QToolBar</a> * fileTools = new <a href="qtoolbar.html">QToolBar</a>( this, "file operations" );
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| 151 | </pre><pre> fileSaveAction-><a href="#addTo">addTo</a>( fileTools );
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| 152 | </pre><pre> <a href="qpopupmenu.html">QPopupMenu</a> * file = new <a href="qpopupmenu.html">QPopupMenu</a>( this );
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| 153 | <a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( "&File", file );
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| 154 | </pre><pre> fileSaveAction-><a href="#addTo">addTo</a>( file );
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| 155 | </pre>
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| 156 | <p> We create a toolbar and add our fileSaveAction to it. Similarly we
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| 157 | create a menu, add a top-level menu item, and add our
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| 158 | fileSaveAction.
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| 159 | <p> We recommend that actions are created as children of the window
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| 160 | that they are used in. In most cases actions will be children of
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| 161 | the application's main window.
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| 162 | <p> To prevent recursion, don't create an action as a child of a
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| 163 | widget that the action is later added to.
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| 164 | <p>See also <a href="application.html">Main Window and Related Classes</a> and <a href="basic.html">Basic Widgets</a>.
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| 165 |
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| 166 | <hr><h2>Member Function Documentation</h2>
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| 167 | <h3 class=fn><a name="QAction"></a>QAction::QAction ( <a href="qobject.html">QObject</a> * parent, const char * name = 0 )
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| 168 | </h3>
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| 169 | Constructs an action called <em>name</em> with parent <em>parent</em>.
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| 170 | <p> If <em>parent</em> is a <a href="qactiongroup.html">QActionGroup</a>, the new action inserts itself into
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| 171 | <em>parent</em>.
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| 172 | <p> For accelerators and status tips to work, <em>parent</em> must either be
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| 173 | a widget, or an action group whose parent is a widget.
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| 174 | <p> <b>Warning:</b> To prevent recursion, don't create an action as a child
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| 175 | of a widget that the action is later added to.
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| 176 |
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| 177 | <h3 class=fn><a name="QAction-2"></a>QAction::QAction ( const <a href="qstring.html">QString</a> & menuText, <a href="qkeysequence.html">QKeySequence</a> accel, <a href="qobject.html">QObject</a> * parent, const char * name = 0 )
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| 178 | </h3>
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| 179 | This constructor results in an icon-less action with the the menu
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| 180 | text <em>menuText</em> and keyboard accelerator <em>accel</em>. It is a child
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| 181 | of <em>parent</em> and called <em>name</em>.
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| 182 | <p> If <em>parent</em> is a <a href="qactiongroup.html">QActionGroup</a>, the action automatically becomes
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| 183 | a member of it.
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| 184 | <p> For accelerators and status tips to work, <em>parent</em> must either be
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| 185 | a widget, or an action group whose parent is a widget.
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| 186 | <p> The action uses a stripped version of <em>menuText</em> (e.g. "&Menu
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| 187 | Option..." becomes "Menu Option") as descriptive text for
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| 188 | toolbuttons. You can override this by setting a specific
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| 189 | description with <a href="#setText">setText</a>(). The same text and <em>accel</em> will be
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| 190 | used for tool tips and status tips unless you provide text for
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| 191 | these using <a href="#setToolTip">setToolTip</a>() and <a href="#setStatusTip">setStatusTip</a>().
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| 192 | <p> Call <a href="#setToggleAction">setToggleAction</a>(TRUE) to make the action a toggle action.
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| 193 | <p> <b>Warning:</b> To prevent recursion, don't create an action as a child
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| 194 | of a widget that the action is later added to.
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| 195 |
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| 196 | <h3 class=fn><a name="QAction-3"></a>QAction::QAction ( const <a href="qiconset.html">QIconSet</a> & icon, const <a href="qstring.html">QString</a> & menuText, <a href="qkeysequence.html">QKeySequence</a> accel, <a href="qobject.html">QObject</a> * parent, const char * name = 0 )
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| 197 | </h3>
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| 198 | This constructor creates an action with the following properties:
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| 199 | the icon or iconset <em>icon</em>, the menu text <em>menuText</em> and
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| 200 | keyboard accelerator <em>accel</em>. It is a child of <em>parent</em> and
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| 201 | called <em>name</em>.
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| 202 | <p> If <em>parent</em> is a <a href="qactiongroup.html">QActionGroup</a>, the action automatically becomes
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| 203 | a member of it.
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| 204 | <p> For accelerators and status tips to work, <em>parent</em> must either be
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| 205 | a widget, or an action group whose parent is a widget.
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| 206 | <p> The action uses a stripped version of <em>menuText</em> (e.g. "&Menu
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| 207 | Option..." becomes "Menu Option") as descriptive text for
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| 208 | toolbuttons. You can override this by setting a specific
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| 209 | description with <a href="#setText">setText</a>(). The same text and <em>accel</em> will be
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| 210 | used for tool tips and status tips unless you provide text for
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| 211 | these using <a href="#setToolTip">setToolTip</a>() and <a href="#setStatusTip">setStatusTip</a>().
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| 212 | <p> Call <a href="#setToggleAction">setToggleAction</a>(TRUE) to make the action a toggle action.
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| 213 | <p> <b>Warning:</b> To prevent recursion, don't create an action as a child
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| 214 | of a widget that the action is later added to.
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| 215 |
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| 216 | <h3 class=fn><a name="QAction-4"></a>QAction::QAction ( const <a href="qstring.html">QString</a> & text, const <a href="qiconset.html">QIconSet</a> & icon, const <a href="qstring.html">QString</a> & menuText, <a href="qkeysequence.html">QKeySequence</a> accel, <a href="qobject.html">QObject</a> * parent, const char * name = 0, bool toggle = FALSE )
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| 217 | </h3> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 218 | <p> This constructor creates an action with the following properties:
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| 219 | the description <em>text</em>, the icon or iconset <em>icon</em>, the menu
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| 220 | text <em>menuText</em> and keyboard accelerator <em>accel</em>. It is a child
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| 221 | of <em>parent</em> and called <em>name</em>. If <em>toggle</em> is TRUE the action
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| 222 | will be a toggle action, otherwise it will be a command action.
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| 223 | <p> If <em>parent</em> is a <a href="qactiongroup.html">QActionGroup</a>, the action automatically becomes
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| 224 | a member of it.
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| 225 | <p> For accelerators and status tips to work, <em>parent</em> must either be
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| 226 | a widget, or an action group whose parent is a widget.
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| 227 | <p> The <em>text</em> and <em>accel</em> will be used for tool tips and status
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| 228 | tips unless you provide specific text for these using <a href="#setToolTip">setToolTip</a>()
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| 229 | and <a href="#setStatusTip">setStatusTip</a>().
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| 230 |
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| 231 | <h3 class=fn><a name="QAction-5"></a>QAction::QAction ( const <a href="qstring.html">QString</a> & text, const <a href="qstring.html">QString</a> & menuText, <a href="qkeysequence.html">QKeySequence</a> accel, <a href="qobject.html">QObject</a> * parent, const char * name = 0, bool toggle = FALSE )
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| 232 | </h3> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 233 | <p> This constructor results in an icon-less action with the
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| 234 | description <em>text</em>, the menu text <em>menuText</em> and the keyboard
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| 235 | accelerator <em>accel</em>. Its parent is <em>parent</em> and it is called <em>name</em>. If <em>toggle</em> is TRUE the action will be a toggle action,
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| 236 | otherwise it will be a command action.
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| 237 | <p> The action automatically becomes a member of <em>parent</em> if <em>parent</em> is a <a href="qactiongroup.html">QActionGroup</a>.
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| 238 | <p> For accelerators and status tips to work, <em>parent</em> must either be
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| 239 | a widget, or an action group whose parent is a widget.
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| 240 | <p> The <em>text</em> and <em>accel</em> will be used for tool tips and status
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| 241 | tips unless you provide specific text for these using <a href="#setToolTip">setToolTip</a>()
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| 242 | and <a href="#setStatusTip">setStatusTip</a>().
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| 243 |
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| 244 | <h3 class=fn><a name="QAction-6"></a>QAction::QAction ( <a href="qobject.html">QObject</a> * parent, const char * name, bool toggle )
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| 245 | </h3> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 246 | <p> Constructs an action called <em>name</em> with parent <em>parent</em>.
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| 247 | <p> If <em>toggle</em> is TRUE the action will be a toggle action, otherwise
|
|---|
| 248 | it will be a command action.
|
|---|
| 249 | <p> If <em>parent</em> is a <a href="qactiongroup.html">QActionGroup</a>, the new action inserts itself into
|
|---|
| 250 | <em>parent</em>.
|
|---|
| 251 | <p> For accelerators and status tips to work, <em>parent</em> must either be
|
|---|
| 252 | a widget, or an action group whose parent is a widget.
|
|---|
| 253 |
|
|---|
| 254 | <h3 class=fn><a name="~QAction"></a>QAction::~QAction ()
|
|---|
| 255 | </h3>
|
|---|
| 256 | Destroys the object and frees allocated resources.
|
|---|
| 257 |
|
|---|
| 258 | <h3 class=fn><a href="qkeysequence.html">QKeySequence</a> <a name="accel"></a>QAction::accel () const
|
|---|
| 259 | </h3><p>Returns the action's accelerator key.
|
|---|
| 260 | See the <a href="qaction.html#accel-prop">"accel"</a> property for details.
|
|---|
| 261 | <h3 class=fn>void <a name="activate"></a>QAction::activate ()<tt> [slot]</tt>
|
|---|
| 262 | </h3>
|
|---|
| 263 | Activates the action and executes all connected slots.
|
|---|
| 264 | This only works for actions that are not toggle action.
|
|---|
| 265 | <p> <p>See also <a href="#toggle">toggle</a>().
|
|---|
| 266 |
|
|---|
| 267 | <h3 class=fn>void <a name="activated"></a>QAction::activated ()<tt> [signal]</tt>
|
|---|
| 268 | </h3>
|
|---|
| 269 |
|
|---|
| 270 | <p> This signal is emitted when an action is activated by the user,
|
|---|
| 271 | e.g. when the user clicks a menu option or a toolbar button or
|
|---|
| 272 | presses an action's accelerator key combination.
|
|---|
| 273 | <p> Connect to this signal for command actions. Connect to the
|
|---|
| 274 | <a href="#toggled">toggled</a>() signal for toggle actions.
|
|---|
| 275 |
|
|---|
| 276 | <p>Examples: <a href="qaction-application-example.html#x1123">action/application.cpp</a>, <a href="canvas-chart-example.html#x2869">chart/chartform.cpp</a>, and <a href="themes-example.html#x316">themes/themes.cpp</a>.
|
|---|
| 277 | <h3 class=fn>bool <a name="addTo"></a>QAction::addTo ( <a href="qwidget.html">QWidget</a> * w )<tt> [virtual]</tt>
|
|---|
| 278 | </h3>
|
|---|
| 279 | Adds this action to widget <em>w</em>.
|
|---|
| 280 | <p> Currently actions may be added to <a href="qtoolbar.html">QToolBar</a> and <a href="qpopupmenu.html">QPopupMenu</a> widgets.
|
|---|
| 281 | <p> An action added to a tool bar is automatically displayed as a tool
|
|---|
| 282 | button; an action added to a pop up menu appears as a menu option.
|
|---|
| 283 | <p> <a href="#addTo">addTo</a>() returns TRUE if the action was added successfully and
|
|---|
| 284 | FALSE otherwise. (If <em>w</em> is not a QToolBar or QPopupMenu the
|
|---|
| 285 | action will not be added and FALSE will be returned.)
|
|---|
| 286 | <p> <p>See also <a href="#removeFrom">removeFrom</a>().
|
|---|
| 287 |
|
|---|
| 288 | <p>Examples: <a href="qaction-application-example.html#x1124">action/application.cpp</a>, <a href="toggleaction-example.html#x2971">action/toggleaction/toggleaction.cpp</a>, and <a href="canvas-chart-example.html#x2870">chart/chartform.cpp</a>.
|
|---|
| 289 | <p>Reimplemented in <a href="qactiongroup.html#addTo">QActionGroup</a>.
|
|---|
| 290 | <h3 class=fn>void <a name="addedTo"></a>QAction::addedTo ( <a href="qwidget.html">QWidget</a> * actionWidget, <a href="qwidget.html">QWidget</a> * container )<tt> [virtual protected]</tt>
|
|---|
| 291 | </h3>
|
|---|
| 292 | This function is called from the <a href="#addTo">addTo</a>() function when it has
|
|---|
| 293 | created a widget (<em>actionWidget</em>) for the action in the <em>container</em>.
|
|---|
| 294 |
|
|---|
| 295 | <h3 class=fn>void <a name="addedTo-2"></a>QAction::addedTo ( int index, <a href="qpopupmenu.html">QPopupMenu</a> * menu )<tt> [virtual protected]</tt>
|
|---|
| 296 | </h3>
|
|---|
| 297 | This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|---|
| 298 | <p> This function is called from the <a href="#addTo">addTo</a>() function when it has
|
|---|
| 299 | created a menu item at the index position <em>index</em> in the popup
|
|---|
| 300 | menu <em>menu</em>.
|
|---|
| 301 |
|
|---|
| 302 | <h3 class=fn><a href="qiconset.html">QIconSet</a> <a name="iconSet"></a>QAction::iconSet () const
|
|---|
| 303 | </h3><p>Returns the action's icon.
|
|---|
| 304 | See the <a href="qaction.html#iconSet-prop">"iconSet"</a> property for details.
|
|---|
| 305 | <h3 class=fn>bool <a name="isEnabled"></a>QAction::isEnabled () const
|
|---|
| 306 | </h3><p>Returns TRUE if the action is enabled; otherwise returns FALSE.
|
|---|
| 307 | See the <a href="qaction.html#enabled-prop">"enabled"</a> property for details.
|
|---|
| 308 | <h3 class=fn>bool <a name="isOn"></a>QAction::isOn () const
|
|---|
| 309 | </h3><p>Returns TRUE if a toggle action is on; otherwise returns FALSE.
|
|---|
| 310 | See the <a href="qaction.html#on-prop">"on"</a> property for details.
|
|---|
| 311 | <h3 class=fn>bool <a name="isToggleAction"></a>QAction::isToggleAction () const
|
|---|
| 312 | </h3><p>Returns TRUE if the action is a toggle action; otherwise returns FALSE.
|
|---|
| 313 | See the <a href="qaction.html#toggleAction-prop">"toggleAction"</a> property for details.
|
|---|
| 314 | <h3 class=fn>bool <a name="isVisible"></a>QAction::isVisible () const
|
|---|
| 315 | </h3><p>Returns TRUE if the action can be seen (e.g. in menus and toolbars); otherwise returns FALSE.
|
|---|
| 316 | See the <a href="qaction.html#visible-prop">"visible"</a> property for details.
|
|---|
| 317 | <h3 class=fn><a href="qstring.html">QString</a> <a name="menuText"></a>QAction::menuText () const
|
|---|
| 318 | </h3><p>Returns the action's menu text.
|
|---|
| 319 | See the <a href="qaction.html#menuText-prop">"menuText"</a> property for details.
|
|---|
| 320 | <h3 class=fn>bool <a name="removeFrom"></a>QAction::removeFrom ( <a href="qwidget.html">QWidget</a> * w )<tt> [virtual]</tt>
|
|---|
| 321 | </h3>
|
|---|
| 322 | Removes the action from widget <em>w</em>.
|
|---|
| 323 | <p> Returns TRUE if the action was removed successfully; otherwise
|
|---|
| 324 | returns FALSE.
|
|---|
| 325 | <p> <p>See also <a href="#addTo">addTo</a>().
|
|---|
| 326 |
|
|---|
| 327 | <h3 class=fn>void <a name="setAccel"></a>QAction::setAccel ( const <a href="qkeysequence.html">QKeySequence</a> & key )<tt> [virtual]</tt>
|
|---|
| 328 | </h3><p>Sets the action's accelerator key to <em>key</em>.
|
|---|
| 329 | See the <a href="qaction.html#accel-prop">"accel"</a> property for details.
|
|---|
| 330 | <h3 class=fn>void <a name="setDisabled"></a>QAction::setDisabled ( bool disable )<tt> [slot]</tt>
|
|---|
| 331 | </h3>
|
|---|
| 332 | Disables the action if <em>disable</em> is TRUE; otherwise
|
|---|
| 333 | enables the action.
|
|---|
| 334 | <p> See the <a href="#enabled-prop">enabled</a> documentation for more information.
|
|---|
| 335 |
|
|---|
| 336 | <h3 class=fn>void <a name="setEnabled"></a>QAction::setEnabled ( bool )<tt> [virtual slot]</tt>
|
|---|
| 337 | </h3><p>Sets whether the action is enabled.
|
|---|
| 338 | See the <a href="qaction.html#enabled-prop">"enabled"</a> property for details.
|
|---|
| 339 | <h3 class=fn>void <a name="setIconSet"></a>QAction::setIconSet ( const <a href="qiconset.html">QIconSet</a> & )<tt> [virtual]</tt>
|
|---|
| 340 | </h3><p>Sets the action's icon.
|
|---|
| 341 | See the <a href="qaction.html#iconSet-prop">"iconSet"</a> property for details.
|
|---|
| 342 | <h3 class=fn>void <a name="setMenuText"></a>QAction::setMenuText ( const <a href="qstring.html">QString</a> & )<tt> [virtual]</tt>
|
|---|
| 343 | </h3><p>Sets the action's menu text.
|
|---|
| 344 | See the <a href="qaction.html#menuText-prop">"menuText"</a> property for details.
|
|---|
| 345 | <h3 class=fn>void <a name="setOn"></a>QAction::setOn ( bool )<tt> [virtual slot]</tt>
|
|---|
| 346 | </h3><p>Sets whether a toggle action is on.
|
|---|
| 347 | See the <a href="qaction.html#on-prop">"on"</a> property for details.
|
|---|
| 348 | <h3 class=fn>void <a name="setStatusTip"></a>QAction::setStatusTip ( const <a href="qstring.html">QString</a> & )<tt> [virtual]</tt>
|
|---|
| 349 | </h3><p>Sets the action's status tip.
|
|---|
| 350 | See the <a href="qaction.html#statusTip-prop">"statusTip"</a> property for details.
|
|---|
| 351 | <h3 class=fn>void <a name="setText"></a>QAction::setText ( const <a href="qstring.html">QString</a> & )<tt> [virtual]</tt>
|
|---|
| 352 | </h3><p>Sets the action's descriptive text.
|
|---|
| 353 | See the <a href="qaction.html#text-prop">"text"</a> property for details.
|
|---|
| 354 | <h3 class=fn>void <a name="setToggleAction"></a>QAction::setToggleAction ( bool )<tt> [virtual]</tt>
|
|---|
| 355 | </h3><p>Sets whether the action is a toggle action.
|
|---|
| 356 | See the <a href="qaction.html#toggleAction-prop">"toggleAction"</a> property for details.
|
|---|
| 357 | <h3 class=fn>void <a name="setToolTip"></a>QAction::setToolTip ( const <a href="qstring.html">QString</a> & )<tt> [virtual]</tt>
|
|---|
| 358 | </h3><p>Sets the action's tool tip.
|
|---|
| 359 | See the <a href="qaction.html#toolTip-prop">"toolTip"</a> property for details.
|
|---|
| 360 | <h3 class=fn>void <a name="setVisible"></a>QAction::setVisible ( bool )<tt> [slot]</tt>
|
|---|
| 361 | </h3><p>Sets whether the action can be seen (e.g. in menus and toolbars).
|
|---|
| 362 | See the <a href="qaction.html#visible-prop">"visible"</a> property for details.
|
|---|
| 363 | <h3 class=fn>void <a name="setWhatsThis"></a>QAction::setWhatsThis ( const <a href="qstring.html">QString</a> & )<tt> [virtual]</tt>
|
|---|
| 364 | </h3><p>Sets the action's "What's This?" help text.
|
|---|
| 365 | See the <a href="qaction.html#whatsThis-prop">"whatsThis"</a> property for details.
|
|---|
| 366 | <h3 class=fn><a href="qstring.html">QString</a> <a name="statusTip"></a>QAction::statusTip () const
|
|---|
| 367 | </h3><p>Returns the action's status tip.
|
|---|
| 368 | See the <a href="qaction.html#statusTip-prop">"statusTip"</a> property for details.
|
|---|
| 369 | <h3 class=fn><a href="qstring.html">QString</a> <a name="text"></a>QAction::text () const
|
|---|
| 370 | </h3><p>Returns the action's descriptive text.
|
|---|
| 371 | See the <a href="qaction.html#text-prop">"text"</a> property for details.
|
|---|
| 372 | <h3 class=fn>void <a name="toggle"></a>QAction::toggle ()<tt> [slot]</tt>
|
|---|
| 373 | </h3>
|
|---|
| 374 | Toggles the state of a toggle action.
|
|---|
| 375 | <p> <p>See also <a href="#on-prop">on</a>, <a href="#activate">activate</a>(), <a href="#toggled">toggled</a>(), and <a href="#toggleAction-prop">toggleAction</a>.
|
|---|
| 376 |
|
|---|
| 377 | <h3 class=fn>void <a name="toggled"></a>QAction::toggled ( bool on )<tt> [signal]</tt>
|
|---|
| 378 | </h3>
|
|---|
| 379 |
|
|---|
| 380 | <p> This signal is emitted when a toggle action changes state; command
|
|---|
| 381 | actions and <a href="qactiongroup.html">QActionGroup</a>s don't emit <a href="#toggled">toggled</a>().
|
|---|
| 382 | <p> The <em>on</em> argument denotes the new state: If <em>on</em> is TRUE the
|
|---|
| 383 | toggle action is switched on, and if <em>on</em> is FALSE the toggle
|
|---|
| 384 | action is switched off.
|
|---|
| 385 | <p> To trigger a user command depending on whether a toggle action has
|
|---|
| 386 | been switched on or off connect it to a slot that takes a bool to
|
|---|
| 387 | indicate the state, e.g.
|
|---|
| 388 | <p>
|
|---|
| 389 |
|
|---|
| 390 | <pre> <a href="qmainwindow.html">QMainWindow</a> * window = new <a href="qmainwindow.html">QMainWindow</a>;
|
|---|
| 391 | </pre><pre> QAction * labelonoffaction = new QAction( window, "labelonoff" );
|
|---|
| 392 | </pre><pre> <a name="x2108"></a> QObject::<a href="qobject.html#connect">connect</a>( labelonoffaction, SIGNAL( <a href="#toggled">toggled</a>( bool ) ),
|
|---|
| 393 | <a name="x2109"></a> window, SLOT( <a href="qmainwindow.html#setUsesTextLabel">setUsesTextLabel</a>( bool ) ) );
|
|---|
| 394 | </pre>
|
|---|
| 395 | <p> <p>See also <a href="#activated">activated</a>(), <a href="#toggleAction-prop">toggleAction</a>, and <a href="#on-prop">on</a>.
|
|---|
| 396 |
|
|---|
| 397 | <p>Example: <a href="qaction.html#x2108">action/toggleaction/toggleaction.cpp</a>.
|
|---|
| 398 | <h3 class=fn><a href="qstring.html">QString</a> <a name="toolTip"></a>QAction::toolTip () const
|
|---|
| 399 | </h3><p>Returns the action's tool tip.
|
|---|
| 400 | See the <a href="qaction.html#toolTip-prop">"toolTip"</a> property for details.
|
|---|
| 401 | <h3 class=fn><a href="qstring.html">QString</a> <a name="whatsThis"></a>QAction::whatsThis () const
|
|---|
| 402 | </h3><p>Returns the action's "What's This?" help text.
|
|---|
| 403 | See the <a href="qaction.html#whatsThis-prop">"whatsThis"</a> property for details.
|
|---|
| 404 | <hr><h2>Property Documentation</h2>
|
|---|
| 405 | <h3 class=fn><a href="qkeysequence.html">QKeySequence</a> <a name="accel-prop"></a>accel</h3>
|
|---|
| 406 | <p>This property holds the action's accelerator key.
|
|---|
| 407 | <p>The keycodes can be found in <a href="qt.html#Key-enum">Qt::Key</a> and <a href="qt.html#Modifier-enum">Qt::Modifier</a>. There
|
|---|
| 408 | is no default accelerator key.
|
|---|
| 409 |
|
|---|
| 410 | <p>Set this property's value with <a href="#setAccel">setAccel</a>() and get this property's value with <a href="#accel">accel</a>().
|
|---|
| 411 | <h3 class=fn>bool <a name="enabled-prop"></a>enabled</h3>
|
|---|
| 412 | <p>This property holds whether the action is enabled.
|
|---|
| 413 | <p>Disabled actions can't be chosen by the user. They don't disappear
|
|---|
| 414 | from the menu/tool bar but are displayed in a way which indicates
|
|---|
| 415 | that they are unavailable, e.g. they might be displayed grayed
|
|---|
| 416 | out.
|
|---|
| 417 | <p> What's this? help on disabled actions is still available provided
|
|---|
| 418 | the <a href="#whatsThis-prop">QAction::whatsThis</a> property is set.
|
|---|
| 419 |
|
|---|
| 420 | <p>Set this property's value with <a href="#setEnabled">setEnabled</a>() and get this property's value with <a href="#isEnabled">isEnabled</a>().
|
|---|
| 421 | <h3 class=fn><a href="qiconset.html">QIconSet</a> <a name="iconSet-prop"></a>iconSet</h3>
|
|---|
| 422 | <p>This property holds the action's icon.
|
|---|
| 423 | <p>The icon is used as the tool button icon and in the menu to the
|
|---|
| 424 | left of the menu text. There is no default icon.
|
|---|
| 425 | <p> If a null icon (<a href="qiconset.html#isNull">QIconSet::isNull</a>() is passed into this function,
|
|---|
| 426 | the icon of the action is cleared.
|
|---|
| 427 | <p> (See the action/toggleaction/toggleaction.cpp example.)
|
|---|
| 428 | <p>
|
|---|
| 429 | <p>Set this property's value with <a href="#setIconSet">setIconSet</a>() and get this property's value with <a href="#iconSet">iconSet</a>().
|
|---|
| 430 | <h3 class=fn><a href="qstring.html">QString</a> <a name="menuText-prop"></a>menuText</h3>
|
|---|
| 431 | <p>This property holds the action's menu text.
|
|---|
| 432 | <p>If the action is added to a menu the menu option will consist of
|
|---|
| 433 | the icon (if there is one), the menu text and the accelerator (if
|
|---|
| 434 | there is one). If the menu text is not explicitly set in the
|
|---|
| 435 | constructor or by using <a href="#setMenuText">setMenuText</a>() the action's description
|
|---|
| 436 | text will be used as the menu text. There is no default menu text.
|
|---|
| 437 | <p> <p>See also <a href="#text-prop">text</a>.
|
|---|
| 438 |
|
|---|
| 439 | <p>Set this property's value with <a href="#setMenuText">setMenuText</a>() and get this property's value with <a href="#menuText">menuText</a>().
|
|---|
| 440 | <h3 class=fn>bool <a name="on-prop"></a>on</h3>
|
|---|
| 441 | <p>This property holds whether a toggle action is on.
|
|---|
| 442 | <p>This property is always on (TRUE) for command actions and
|
|---|
| 443 | <a href="qactiongroup.html">QActionGroup</a>s; <a href="#setOn">setOn</a>() has no effect on them. For action's
|
|---|
| 444 | where <a href="#isToggleAction">isToggleAction</a>() is TRUE, this property's default value is
|
|---|
| 445 | off (FALSE).
|
|---|
| 446 | <p> <p>See also <a href="#toggleAction-prop">toggleAction</a>.
|
|---|
| 447 |
|
|---|
| 448 | <p>Set this property's value with <a href="#setOn">setOn</a>() and get this property's value with <a href="#isOn">isOn</a>().
|
|---|
| 449 | <h3 class=fn><a href="qstring.html">QString</a> <a name="statusTip-prop"></a>statusTip</h3>
|
|---|
| 450 | <p>This property holds the action's status tip.
|
|---|
| 451 | <p>The statusTip is displayed on all status bars that this action's
|
|---|
| 452 | toplevel parent widget provides.
|
|---|
| 453 | <p> If no status tip is defined, the action uses the tool tip text.
|
|---|
| 454 | <p> There is no default statusTip text.
|
|---|
| 455 | <p> <p>See also <a href="#statusTip-prop">statusTip</a> and <a href="#toolTip-prop">toolTip</a>.
|
|---|
| 456 |
|
|---|
| 457 | <p>Set this property's value with <a href="#setStatusTip">setStatusTip</a>() and get this property's value with <a href="#statusTip">statusTip</a>().
|
|---|
| 458 | <h3 class=fn><a href="qstring.html">QString</a> <a name="text-prop"></a>text</h3>
|
|---|
| 459 | <p>This property holds the action's descriptive text.
|
|---|
| 460 | <p>If <a href="qmainwindow.html#usesTextLabel-prop">QMainWindow::usesTextLabel</a> is TRUE, the text appears as a
|
|---|
| 461 | label in the relevant tool button. It also serves as the default
|
|---|
| 462 | text in menus and tool tips if these have not been specifically
|
|---|
| 463 | defined. There is no default text.
|
|---|
| 464 | <p> <p>See also <a href="#menuText-prop">menuText</a>, <a href="#toolTip-prop">toolTip</a>, and <a href="#statusTip-prop">statusTip</a>.
|
|---|
| 465 |
|
|---|
| 466 | <p>Set this property's value with <a href="#setText">setText</a>() and get this property's value with <a href="#text">text</a>().
|
|---|
| 467 | <h3 class=fn>bool <a name="toggleAction-prop"></a>toggleAction</h3>
|
|---|
| 468 | <p>This property holds whether the action is a toggle action.
|
|---|
| 469 | <p>A toggle action is one which has an on/off state. For example a
|
|---|
| 470 | Bold toolbar button is either on or off. An action which is not a
|
|---|
| 471 | toggle action is a command action; a command action is simply
|
|---|
| 472 | executed, e.g. file save. This property's default is FALSE.
|
|---|
| 473 | <p> In some situations, the state of one toggle action should depend
|
|---|
| 474 | on the state of others. For example, "Left Align", "Center" and
|
|---|
| 475 | "Right Align" toggle actions are mutually exclusive. To achieve
|
|---|
| 476 | exclusive toggling, add the relevant toggle actions to a
|
|---|
| 477 | <a href="qactiongroup.html">QActionGroup</a> with the <a href="qactiongroup.html#exclusive-prop">QActionGroup::exclusive</a> property set to
|
|---|
| 478 | TRUE.
|
|---|
| 479 |
|
|---|
| 480 | <p>Set this property's value with <a href="#setToggleAction">setToggleAction</a>() and get this property's value with <a href="#isToggleAction">isToggleAction</a>().
|
|---|
| 481 | <h3 class=fn><a href="qstring.html">QString</a> <a name="toolTip-prop"></a>toolTip</h3>
|
|---|
| 482 | <p>This property holds the action's tool tip.
|
|---|
| 483 | <p>This text is used for the tool tip. If no status tip has been set
|
|---|
| 484 | the tool tip will be used for the status tip.
|
|---|
| 485 | <p> If no tool tip is specified the action's text is used, and if that
|
|---|
| 486 | hasn't been specified the description text is used as the tool tip
|
|---|
| 487 | text.
|
|---|
| 488 | <p> There is no default tool tip text.
|
|---|
| 489 | <p> <p>See also <a href="#statusTip-prop">statusTip</a> and <a href="#accel-prop">accel</a>.
|
|---|
| 490 |
|
|---|
| 491 | <p>Set this property's value with <a href="#setToolTip">setToolTip</a>() and get this property's value with <a href="#toolTip">toolTip</a>().
|
|---|
| 492 | <h3 class=fn>bool <a name="visible-prop"></a>visible</h3>
|
|---|
| 493 | <p>This property holds whether the action can be seen (e.g. in menus and toolbars).
|
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| 494 | <p>If <em>visible</em> is TRUE the action can be seen (e.g. in menus and
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| 495 | toolbars) and chosen by the user; if <em>visible</em> is FALSE the
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| 496 | action cannot be seen or chosen by the user.
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| 497 | <p> Actions which are not visible are <em>not</em> grayed out; they do not
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| 498 | appear at all.
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| 499 |
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| 500 | <p>Set this property's value with <a href="#setVisible">setVisible</a>() and get this property's value with <a href="#isVisible">isVisible</a>().
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| 501 | <h3 class=fn><a href="qstring.html">QString</a> <a name="whatsThis-prop"></a>whatsThis</h3>
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| 502 | <p>This property holds the action's "What's This?" help text.
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| 503 | <p>The whats this text is used to provide a brief description of the
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| 504 | action. The text may contain rich text (HTML-like tags -- see
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| 505 | <a href="qstylesheet.html">QStyleSheet</a> for the list of supported tags). There is no default
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| 506 | "What's This" text.
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| 507 | <p> <p>See also <a href="qwhatsthis.html">QWhatsThis</a>.
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| 508 |
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| 509 | <p>Set this property's value with <a href="#setWhatsThis">setWhatsThis</a>() and get this property's value with <a href="#whatsThis">whatsThis</a>().
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| 510 | <!-- eof -->
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| 511 | <hr><p>
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| 512 | This file is part of the <a href="index.html">Qt toolkit</a>.
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| 513 | Copyright © 1995-2007
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| 514 | <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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| 515 | <table width=100% cellspacing=0 border=0><tr>
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| 516 | <td>Copyright © 2007
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| 517 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 518 | <td align=right><div align=right>Qt 3.3.8</div>
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| 519 | </table></div></address></body>
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| 520 | </html>
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