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<h1>GFC::Gtk::RadioButton Class Reference</h1>A GtkRadioButton C++ wrapper class.
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="radiobutton_8hh-source.html">gfc/gtk/radiobutton.hh</a>></code>
<p>
<p>Inheritance diagram for GFC::Gtk::RadioButton:
<p><center><img src="classGFC_1_1Gtk_1_1RadioButton.png" usemap="#GFC::Gtk::RadioButton_map" border="0" alt=""></center>
<map name="GFC::Gtk::RadioButton_map">
<area href="classGFC_1_1Gtk_1_1CheckButton.html" alt="GFC::Gtk::CheckButton" shape="rect" coords="75,504,216,528">
<area href="classGFC_1_1Gtk_1_1ToggleButton.html" alt="GFC::Gtk::ToggleButton" shape="rect" coords="75,448,216,472">
<area href="classGFC_1_1Gtk_1_1Button.html" alt="GFC::Gtk::Button" shape="rect" coords="75,392,216,416">
<area href="classGFC_1_1Gtk_1_1Bin.html" alt="GFC::Gtk::Bin" shape="rect" coords="75,336,216,360">
<area href="classGFC_1_1Gtk_1_1Container.html" alt="GFC::Gtk::Container" shape="rect" coords="75,280,216,304">
<area href="classGFC_1_1Gtk_1_1Widget.html" alt="GFC::Gtk::Widget" shape="rect" coords="75,224,216,248">
<area href="classGFC_1_1Gtk_1_1Object.html" alt="GFC::Gtk::Object" shape="rect" coords="0,168,141,192">
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</map>
<a href="classGFC_1_1Gtk_1_1RadioButton-members.html">List of all members.</a><h2>Signal Prototypes</h2>
<ul>
<li>const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1G_1_1Signal.html">GroupChangedSignalType</a> <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z716_2">group_changed_signal</a>
<dl class="el"><dd class="mdescRight">Group changed signal (see <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z720_0">sig_group_changed()</a>). <a href="#z716_2"></a><br></dl></ul>
<h2>Public Types</h2>
<ul>
<li><a class="anchor" name="w0" doxytag="GFC::Gtk::RadioButton::Group" ></a>
typedef GSList <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#w0">Group</a>
<dl class="el"><dd class="mdescRight">The radio button group. <br></dl></ul>
<h2>Public Member Functions</h2>
<tr><td colspan="2"><div class="groupHeader">Constructors</div></td></tr>
<ul>
<li><a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z717_0">RadioButton</a> ()
<dl class="el"><dd class="mdescRight">Construct a new radio button in a new group. <a href="#z717_0"></a><br></dl><li><a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z717_1">RadioButton</a> (const <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html">RadioButton</a> *group)
<dl class="el"><dd class="mdescRight">Construct a new radio button, adding it to the same group as <em>group</em>. <a href="#z717_1"></a><br></dl><li><a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z717_3">RadioButton</a> (const <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html">RadioButton</a> *group, const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> &label, bool use_underline=false)
<dl class="el"><dd class="mdescRight">Constructs a new radio button and adds it to the same group as <em>group</em>. <a href="#z717_3"></a><br></dl><li><a class="anchor" name="z717_4" doxytag="GFC::Gtk::RadioButton::~RadioButton" ></a>
virtual <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z717_4">~RadioButton</a> ()
<dl class="el"><dd class="mdescRight">Destructor. <br></dl></ul>
<tr><td colspan="2"><div class="groupHeader">Accessors</div></td></tr>
<ul>
<li><a class="anchor" name="z718_0" doxytag="GFC::Gtk::RadioButton::gtk_radio_button" ></a>
GtkRadioButton * <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z718_0">gtk_radio_button</a> () const
<dl class="el"><dd class="mdescRight">Get a pointer to the GtkRadioButton structure. <br></dl><li><a class="anchor" name="z718_1" doxytag="GFC::Gtk::RadioButton::operator GtkRadioButton *" ></a>
<a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z718_1">operator GtkRadioButton *</a> () const
<dl class="el"><dd class="mdescRight">Conversion operator; safely converts a <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html">RadioButton</a> to a GtkRadioButton pointer. <br></dl><li><a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#w0">Group</a> * <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z718_2">get_group</a> () const
<dl class="el"><dd class="mdescRight">Retrieves the group assigned to the radio button. <a href="#z718_2"></a><br></dl></ul>
<tr><td colspan="2"><div class="groupHeader">Methods</div></td></tr>
<ul>
<li>void <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z719_0">set_group</a> (<a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#w0">Group</a> *group)
<dl class="el"><dd class="mdescRight">Sets a radio button's group. <a href="#z719_0"></a><br></dl></ul>
<tr><td colspan="2"><div class="groupHeader">Signal Proxies</div></td></tr>
<ul>
<li>const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1G_1_1SignalProxy.html">GroupChangedSignalProxy</a> <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z720_0">sig_group_changed</a> ()
<dl class="el"><dd class="mdescRight">Connect to the group_changed_signal; emitted when the group of radio buttons that a radio button belongs to changes. <a href="#z720_0"></a><br></dl></ul>
<h2>Protected Member Functions</h2>
<tr><td colspan="2"><div class="groupHeader">Constructors</div></td></tr>
<ul>
<li><a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z715_0">RadioButton</a> (GtkRadioButton *radio_button, bool <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1Trackable.html#z143_1">owns_reference</a>=false)
<dl class="el"><dd class="mdescRight">Construct a new <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html">RadioButton</a> from an existing GtkRadioButton. <a href="#z715_0"></a><br></dl></ul>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A GtkRadioButton C++ wrapper class.
<p>
A single radio button performs the same basic function as a <a class="el" href="classGFC_1_1Gtk_1_1CheckButton.html">CheckButton</a>, as it's position in the object hierarchy reflects. It is only when multiple radio buttons are grouped together that they become a different user interface component in their own right.<p>
Every radio button is a member of some group of radio buttons. When one is selected, all other radio buttons in the same group are deselected. A <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html">RadioButton</a> is one way of giving the user a choice from many options.<p>
The first radio button in a group is constructed with one of the constructors that doesn't have a group argument. These are: <div class="fragment"><pre> <a class="code" href="classGFC_1_1Gtk_1_1RadioButton.html#z717_0">RadioButton</a>();
<a class="code" href="classGFC_1_1Gtk_1_1RadioButton.html#z717_0">RadioButton</a>(<span class="keyword">const</span> String& label, <span class="keywordtype">bool</span> use_underline = <span class="keyword">false</span>);
</pre></div>Then subsequent radio buttons in the group are constructed with one of the constructors that requires a group. These are:<br>
<div class="fragment"><pre> <a class="code" href="classGFC_1_1Gtk_1_1RadioButton.html#z717_0">RadioButton</a>(<span class="keyword">const</span> RadioButton *group, <span class="keyword">const</span> <span class="keywordtype">char</span> *label, <span class="keywordtype">bool</span> use_underline = <span class="keyword">false</span>);
<a class="code" href="classGFC_1_1Gtk_1_1RadioButton.html#z717_0">RadioButton</a>(<span class="keyword">const</span> RadioButton *group, <span class="keyword">const</span> String& label, <span class="keywordtype">bool</span> use_underline = <span class="keyword">false</span>);
</pre></div>The group argument is a pointer to a <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html">RadioButton</a> that already has a group assigned to it. To remove a <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html">RadioButton</a> from one group and make it part of a new one, use <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z719_0">set_group()</a>.<p>
<b>Example:</b> How to create a group of three radio buttons. <div class="fragment"><pre><span class="preprocessor"> #include <<a class="code" href="main_8hh.html">gfc/main.hh</a>></span>
<span class="preprocessor"> #include <<a class="code" href="ui_8hh.html">gfc/ui.hh</a>></span>
<span class="preprocessor"> #include <<a class="code" href="radiobutton_8hh.html">gfc/gtk/radiobutton.hh</a>></span>
<span class="preprocessor"> #include <<a class="code" href="separator_8hh.html">gfc/gtk/separator.hh</a>></span>
<span class="keyword">using</span> <span class="keyword">namespace </span>GFC;
<span class="keyword">class </span>RadioButtonWindow : <span class="keyword">public</span> Gtk::Window
{
<span class="keyword">public</span>:
RadioButtonWindow();
};
RadioButtonWindow::RadioButtonWindow()
{
set_border_width(0);
Gtk::VBox *box1 = <span class="keyword">new</span> Gtk::VBox;
add(*box1);
box1->show();
Gtk::VBox *box2 = <span class="keyword">new</span> Gtk::VBox(<span class="keyword">false</span>, 10);
box2->set_border_width(10);
box1->pack_start(*box2);
box2->show();
Gtk::RadioButton *radio_button = 0;
radio_button = <span class="keyword">new</span> Gtk::RadioButton(radio_button, <span class="stringliteral">"button1"</span>);
box2->pack_start(*radio_button);
radio_button->show();
radio_button = <span class="keyword">new</span> Gtk::RadioButton(*radio_button, <span class="stringliteral">"button2"</span>);
radio_button->set_active(<span class="keyword">true</span>);
box2->pack_start(*radio_button);
radio_button->show();
radio_button = <span class="keyword">new</span> Gtk::RadioButton(*radio_button, <span class="stringliteral">"button3"</span>);
box2->pack_start(*radio_button);
radio_button->show();
Gtk::HSeparator *separator = <span class="keyword">new</span> Gtk::HSeparator;
box1->pack_start(*separator, <span class="keyword">false</span>);
separator->show();
box2 = <span class="keyword">new</span> Gtk::VBox(<span class="keyword">false</span>, 10);
box2->set_border_width(10);
box1->pack_start(*box2, <span class="keyword">false</span>);
box2->show();
Gtk::Button *button = <span class="keyword">new</span> Gtk::Button(<span class="stringliteral">"close"</span>);
button->sig_clicked().connect(slot(<span class="keyword">this</span>, &RadioButtonWindow::dispose));
box2->pack_start(*button);
button->set_flags(Gtk::CAN_DEFAULT);
button->grab_default();
button->show();
}
<span class="keywordtype">int</span> main (<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *argv[])
{
<span class="keyword">using</span> <span class="keyword">namespace </span>Main;
<a class="code" href="namespaceGFC_1_1Main.html#a2">init</a>(&argc, &argv);
RadioButtonWindow window;
window.sig_destroy().connect(slot(&GFC::Main::quit));
window.show();
<a class="code" href="namespaceGFC_1_1Main.html#a11">run</a>();
<span class="keywordflow">return</span> 0;
}
</pre></div>
<p>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="z715_0" doxytag="GFC::Gtk::RadioButton::RadioButton" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> GFC::Gtk::RadioButton::RadioButton </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">GtkRadioButton * </td>
<td class="mdname" nowrap> <em>radio_button</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>bool </td>
<td class="mdname" nowrap> <em>owns_reference</em> = <code>false</code></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"><code> [explicit, protected]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Construct a new <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html">RadioButton</a> from an existing GtkRadioButton.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>radio_button</em> </td><td>A pointer to a GtkRadioButton. </td></tr>
<tr><td></td><td valign=top><em>owns_reference</em> </td><td>Set false if the initial reference count is floating, set true if it's not.</td></tr>
</table>
</dl>
<br>
The <em>radio_button</em> can be a newly created GtkRadioButton or an existing GtkRadioButton (see <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1G_1_1Object.html#z68_0">G::Object::Object</a>). </td>
</tr>
</table>
<a class="anchor" name="z717_0" doxytag="GFC::Gtk::RadioButton::RadioButton" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> GFC::Gtk::RadioButton::RadioButton </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Construct a new radio button in a new group.
<p>
To be of any practical value, a widget should then be packed into the radio button. </td>
</tr>
</table>
<a class="anchor" name="z717_1" doxytag="GFC::Gtk::RadioButton::RadioButton" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> GFC::Gtk::RadioButton::RadioButton </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html">RadioButton</a> * </td>
<td class="mdname1" valign="top" nowrap> <em>group</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [explicit]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Construct a new radio button, adding it to the same group as <em>group</em>.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>group</em> </td><td>An existing radio button, or null for the first button in a group.</td></tr>
</table>
</dl>
<br>
To be of any practical value, a widget should then be packed into the radio button. </td>
</tr>
</table>
<a class="anchor" name="z717_3" doxytag="GFC::Gtk::RadioButton::RadioButton" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
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<td class="md" nowrap valign="top"> GFC::Gtk::RadioButton::RadioButton </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html">RadioButton</a> * </td>
<td class="mdname" nowrap> <em>group</em>, </td>
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<td class="md" nowrap>const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> & </td>
<td class="mdname" nowrap> <em>label</em>, </td>
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<td class="md" nowrap>bool </td>
<td class="mdname" nowrap> <em>use_underline</em> = <code>false</code></td>
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<td class="md">) </td>
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Constructs a new radio button and adds it to the same group as <em>group</em>.
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>group</em> </td><td>An existing radio button, or null to start a new group. </td></tr>
<tr><td></td><td valign=top><em>label</em> </td><td>The text label to display next to the radio button. </td></tr>
<tr><td></td><td valign=top><em>use_underline</em> </td><td>Set <em>true</em> if label contains a mnemonic character. </td></tr>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="z718_2" doxytag="GFC::Gtk::RadioButton::get_group" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#w0">Group</a>* GFC::Gtk::RadioButton::get_group </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const</td>
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Retrieves the group assigned to the radio button.
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<dl compact><dt><b>Returns:</b></dt><dd>A linked list containing all the radio buttons in the same group as this radio button. </dd></dl>
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<a class="anchor" name="z719_0" doxytag="GFC::Gtk::RadioButton::set_group" ></a><p>
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<td class="md" nowrap valign="top"> void GFC::Gtk::RadioButton::set_group </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#w0">Group</a> * </td>
<td class="mdname1" valign="top" nowrap> <em>group</em> </td>
<td class="md" valign="top"> ) </td>
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Sets a radio button's group.
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>group</em> </td><td>An existing radio button group, such as one returned from <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z718_2">get_group()</a>.</td></tr>
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It should be noted that this does not change the layout of your interface in any way, so if you are changing the group, it is likely you will need to re-arrange the user interface to reflect these changes. </td>
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<a class="anchor" name="z720_0" doxytag="GFC::Gtk::RadioButton::sig_group_changed" ></a><p>
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<td class="md" nowrap valign="top"> const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1G_1_1SignalProxy.html">GroupChangedSignalProxy</a> GFC::Gtk::RadioButton::sig_group_changed </td>
<td class="md" valign="top">( </td>
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<p>
Connect to the group_changed_signal; emitted when the group of radio buttons that a radio button belongs to changes.
<p>
This can be when a radio button switches from being alone to being part of a group of 2 or more buttons, or vice-versa, and when a button is moved from one group of 2 or more buttons to a different one, but not when the composition of the group that a button belongs to changes. </td>
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="z716_2" doxytag="GFC::Gtk::RadioButton::group_changed_signal" ></a><p>
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<td class="md" nowrap valign="top"> const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1G_1_1Signal.html">GroupChangedSignalType</a> <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z716_2">GFC::Gtk::RadioButton::group_changed_signal</a><code> [static, protected]</code> </td>
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<p>
Group changed signal (see <a class="el" href="classGFC_1_1Gtk_1_1RadioButton.html#z720_0">sig_group_changed()</a>).
<p>
Calls a slot with the signature: <div class="fragment"><pre> <span class="keywordtype">void</span> function();
</pre></div> </td>
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<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="radiobutton_8hh-source.html">radiobutton.hh</a></ul>
<hr size="1"><address style="align: right;"><small>Generated on Tue Aug 24 00:34:41 2004 for GFC-UI by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 ></a> 1.3.8 </small></address>
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