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<h1>GFC::Gtk::IconTheme Class Reference</h1>A GtkIconTheme C++ wrapper class.
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="icontheme_8hh-source.html">gfc/gtk/icontheme.hh</a>></code>
<p>
<p>Inheritance diagram for GFC::Gtk::IconTheme:
<p><center><img src="classGFC_1_1Gtk_1_1IconTheme.png" usemap="#GFC::Gtk::IconTheme_map" border="0" alt=""></center>
<map name="GFC::Gtk::IconTheme_map">
<area doxygen="gfccore.tag:" href="classGFC_1_1G_1_1Object.html" alt="GFC::G::Object" shape="rect" coords="0,112,134,136">
<area doxygen="gfccore.tag:" href="classGFC_1_1G_1_1TypeInstance.html" alt="GFC::G::TypeInstance" shape="rect" coords="0,56,134,80">
<area doxygen="gfccore.tag:" href="classGFC_1_1Trackable.html" alt="GFC::Trackable" shape="rect" coords="0,0,134,24">
</map>
<a href="classGFC_1_1Gtk_1_1IconTheme-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">ChangedSignalType</a> <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z588_2">changed_signal</a>
<dl class="el"><dd class="mdescRight">Changed signal (see <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z592_0">sig_changed()</a>). <a href="#z588_2"></a><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_1IconTheme.html#z589_0">IconTheme</a> ()
<dl class="el"><dd class="mdescRight">Constructs a new icon theme object. <a href="#z589_0"></a><br></dl><li><a class="anchor" name="z589_1" doxytag="GFC::Gtk::IconTheme::~IconTheme" ></a>
virtual <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z589_1">~IconTheme</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="z590_0" doxytag="GFC::Gtk::IconTheme::gtk_icon_theme" ></a>
GtkIconTheme * <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z590_0">gtk_icon_theme</a> () const
<dl class="el"><dd class="mdescRight">Get a pointer to the GtkIconTheme structure. <br></dl><li><a class="anchor" name="z590_1" doxytag="GFC::Gtk::IconTheme::operator GtkIconTheme *" ></a>
<a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z590_1">operator GtkIconTheme *</a> () const
<dl class="el"><dd class="mdescRight">Conversion operator; safely converts an <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html">IconTheme</a> to a GtkIconTheme pointer. <br></dl><li>std::vector< <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> > <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z590_2">get_search_path</a> () const
<dl class="el"><dd class="mdescRight">Gets the current search path (see <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_1">set_search_path()</a>). <a href="#z590_2"></a><br></dl><li><a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z590_3">get_example_icon_name</a> () const
<dl class="el"><dd class="mdescRight">Gets the name of an icon that is representative of the current theme (for instance, to use when presenting a list of themes to the user). <a href="#z590_3"></a><br></dl><li>bool <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z590_5">has_icon</a> (const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> &icon_name) const
<dl class="el"><dd class="mdescRight">Checks whether an icon theme includes an icon for a particular name. <a href="#z590_5"></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_1IconTheme.html#z591_0">set_screen</a> (<a class="el" href="classGFC_1_1Gdk_1_1Screen.html">Gdk::Screen</a> *screen)
<dl class="el"><dd class="mdescRight">Sets the screen for an icon theme. <a href="#z591_0"></a><br></dl><li>void <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_1">set_search_path</a> (const std::vector< <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> > &path)
<dl class="el"><dd class="mdescRight">Sets the search path for the icon theme object. <a href="#z591_1"></a><br></dl><li>void <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_3">append_search_path</a> (const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> &path)
<dl class="el"><dd class="mdescRight">Appends a directory to the search path (see <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_1">set_search_path()</a>). <a href="#z591_3"></a><br></dl><li>void <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_5">prepend_search_path</a> (const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> &path)
<dl class="el"><dd class="mdescRight">Prepends a directory to the search path (see <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_1">set_search_path()</a>). <a href="#z591_5"></a><br></dl><li>void <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_7">set_custom_theme</a> (const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> &theme_name)
<dl class="el"><dd class="mdescRight">Sets the name of the icon theme that the <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html">IconTheme</a> object uses, overriding system configuration. <a href="#z591_7"></a><br></dl><li><a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1Pointer.html">Pointer</a>< <a class="el" href="classGFC_1_1Gtk_1_1IconInfo.html">IconInfo</a> > <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_9">lookup_icon</a> (const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> &icon_name, int size, <a class="el" href="namespaceGFC_1_1Gtk.html#a197">IconLookupFlagsField</a> flags)
<dl class="el"><dd class="mdescRight">Looks up a named icon and returns a structure containing information such as the filename of the icon. <a href="#z591_9"></a><br></dl><li><a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1Pointer.html">Pointer</a>< <a class="el" href="classGFC_1_1Gdk_1_1Pixbuf.html">Gdk::Pixbuf</a> > <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_11">load_icon</a> (const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> &icon_name, int size, <a class="el" href="namespaceGFC_1_1Gtk.html#a197">IconLookupFlagsField</a> flags, <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1G_1_1Error.html">G::Error</a> *error=0)
<dl class="el"><dd class="mdescRight">Looks up an icon in an icon theme, scales it to the given size and renders it into a pixbuf. <a href="#z591_11"></a><br></dl><li>std::vector< <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> > <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_13">list_icons</a> (const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> &context)
<dl class="el"><dd class="mdescRight">Lists the icons in the current icon theme. <a href="#z591_13"></a><br></dl><li>bool <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_14">rescan_if_needed</a> ()
<dl class="el"><dd class="mdescRight">Checks to see if the icon theme has changed; if it has, any currently cached information is discarded and will be reloaded next time the icon theme is accessed. <a href="#z591_14"></a><br></dl></ul>
<tr><td colspan="2"><div class="groupHeader">Signal Proxies</div></td></tr>
<ul>
<li><a class="anchor" name="z592_0" doxytag="GFC::Gtk::IconTheme::sig_changed" ></a>
const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1G_1_1SignalProxy.html">ChangedSignalProxy</a> <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z592_0">sig_changed</a> ()
<dl class="el"><dd class="mdescRight">Connect to the changed_signal; emitted when the current icon theme is switched or GTK+ detects that a change has occurred in the contents of the current icon theme. <br></dl></ul>
<h2>Static Public Member Functions</h2>
<ul>
<li><a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html">IconTheme</a> * <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#e0">get_for_screen</a> (const <a class="el" href="classGFC_1_1Gdk_1_1Screen.html">Gdk::Screen</a> *screen=0)
<dl class="el"><dd class="mdescRight">Gets the icon theme object associated with <em>screen</em>. <a href="#e0"></a><br></dl><li>void <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#e2">add_builtin_icon</a> (const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> &icon_name, int size, <a class="el" href="classGFC_1_1Gdk_1_1Pixbuf.html">Gdk::Pixbuf</a> &pixbuf)
<dl class="el"><dd class="mdescRight">Registers a built-in icon for icon theme lookups. <a href="#e2"></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_1IconTheme.html#z587_0">IconTheme</a> (GtkIconTheme *icon_theme, bool <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1Trackable.html#z143_1">owns_reference</a>=true)
<dl class="el"><dd class="mdescRight">Construct a new <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html">IconTheme</a> from an existing GtkIconTheme. <a href="#z587_0"></a><br></dl></ul>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A GtkIconTheme C++ wrapper class.
<p>
<a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html">IconTheme</a> acts as a database of information about an icon theme. Normally, you retrieve the icon theme for a particular screen using Gtk::IconTeme::get_for_screen() and it will contain information about current icon theme for that screen, but you can also create a new <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html">IconTheme</a> object and set the icon theme name explicitely using <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_7">Gtk::IconTheme::set_custom_theme()</a>.<p>
<a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html">IconTheme</a> provides a facility for looking up icons by name and size. The main reason for using a name rather than simply providing a filename is to allow different icons to be used depending on what icon theme is seleceted by the user. The operation of icon themes on Linux and Unix follows the Icon Theme Specification. There is a default icon theme, named hicolor where applications should install their icons, but more additional application themes can be installed as operating system vendors and users choose.<p>
Named icons are similar to the <a href="classGFC_1_1Gtk_1_1IconFactory.html">Themeable Stock Images</a>, and the distinction between the two may be a bit confusing. A few things to keep in mind: <a class="el" href="classGFC_1_1Gtk_1_1Stock.html">Stock</a> images usually are used in conjunction with stock items, such as <a class="el" href="classGFC_1_1Gtk_1_1StockId.html#z845_47">Gtk::StockId::OK</a> or <a class="el" href="classGFC_1_1Gtk_1_1StockId.html#z845_48">Gtk::StockId::OPEN</a>. Named icons are easier to set up and therefore are more useful for new icons that an application wants to add, such as application icons or window icons.<p>
<a class="el" href="classGFC_1_1Gtk_1_1Stock.html">Stock</a> images can only be loaded at the symbolic sizes defined by the <a class="el" href="namespaceGFC_1_1Gtk.html#a325">Gtk::IconSize</a> enumeration, or by custom sizes defined by <a class="el" href="namespaceGFC_1_1Gtk.html#a301">Gtk::icon_size_register()</a>, while named icons are more flexible and any pixel size can be specified. Because stock images are closely tied to stock items, and thus to actions in the user interface, stock images may come in multiple variants for different widget states or writing directions.<p>
A good rule of thumb is that if there is a stock image for what you want to use, use it, otherwise use a named icon. It turns out that internally stock images are generally defined in terms of one or more named icons. (An example of the more than one case is icons that depend on writing direction; <a class="el" href="classGFC_1_1Gtk_1_1StockId.html#z845_29">Gtk::StockId::GO_FORWARD</a> uses the two themed icons "gtk-stock-go-forward-ltr" and "gtk-stock-go-forward-rtl".)<p>
In many cases, named themes are used indirectly, via <a class="el" href="classGFC_1_1Gtk_1_1Image.html">Gtk::Image</a> or stock items, rather than directly, but looking up icons directly is also simple. The <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html">IconTheme</a> object acts as a database of all the icons in the current theme. You can create new <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html">IconTheme</a> objects, but its much more efficient to use the standard icon theme for the <a class="el" href="classGFC_1_1Gdk_1_1Screen.html">Gdk::Screen</a> so that the icon information is shared with other people looking up icons. In the case where the default screen is being used, looking up an icon can be as simple as:<p>
<div class="fragment"><pre> G::Error error;
Gtk::IconTheme *icon_theme = Gtk::IconTheme::get_for_screen();
Pointer<Gdk::Pixbuf> pixbuf = icon_theme->load_icon(<span class="stringliteral">"my-icon-name"</span>, 48, 0, &error);
<span class="keywordflow">if</span> (!pixbuf)
{
g_warning(<span class="stringliteral">"Couldn't load icon: %s"</span>, error.message());
}
<span class="keywordflow">else</span>
{
<span class="comment">// Use the pixbuf</span>
}
</pre></div>
<p>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="z587_0" doxytag="GFC::Gtk::IconTheme::IconTheme" ></a><p>
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<td class="md" nowrap valign="top"> GFC::Gtk::IconTheme::IconTheme </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">GtkIconTheme * </td>
<td class="mdname" nowrap> <em>icon_theme</em>, </td>
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<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>bool </td>
<td class="mdname" nowrap> <em>owns_reference</em> = <code>true</code></td>
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<td class="md">) </td>
<td class="md" colspan="2"><code> [explicit, protected]</code></td>
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<p>
Construct a new <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html">IconTheme</a> from an existing GtkIconTheme.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>icon_theme</em> </td><td>A pointer to a GtkIconTheme. </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>
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<br>
The <em>icon_theme</em> can be a newly created GtkIconTheme or an existing GtkIconTheme (see <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1G_1_1Object.html#z68_0">G::Object::Object</a>). </td>
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<a class="anchor" name="z589_0" doxytag="GFC::Gtk::IconTheme::IconTheme" ></a><p>
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<td class="md" nowrap valign="top"> GFC::Gtk::IconTheme::IconTheme </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
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<p>
Constructs a new icon theme object.
<p>
Icon theme objects are used to lookup up an icon by name in a particular icon theme. Usually, you'll want to use <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#e0">get_for_screen()</a> rather than creating a new icon theme object for scratch. </td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="e2" doxytag="GFC::Gtk::IconTheme::add_builtin_icon" ></a><p>
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<td class="md" nowrap valign="top"> void GFC::Gtk::IconTheme::add_builtin_icon </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> & </td>
<td class="mdname" nowrap> <em>icon_name</em>, </td>
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<td class="md" nowrap>int </td>
<td class="mdname" nowrap> <em>size</em>, </td>
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<td></td>
<td class="md" nowrap><a class="el" href="classGFC_1_1Gdk_1_1Pixbuf.html">Gdk::Pixbuf</a> & </td>
<td class="mdname" nowrap> <em>pixbuf</em></td>
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<td class="md">) </td>
<td class="md" colspan="2"><code> [static]</code></td>
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<p>
Registers a built-in icon for icon theme lookups.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>icon_name</em> </td><td>The name of the icon to register. </td></tr>
<tr><td></td><td valign=top><em>size</em> </td><td>The size at which to register the icon. </td></tr>
<tr><td></td><td valign=top><em>pixbuf</em> </td><td>A <a class="el" href="classGFC_1_1Gdk_1_1Pixbuf.html">Gdk::Pixbuf</a> that contains the image to use for <em>icon_name</em>.</td></tr>
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<br>
The idea of built-in icons is to allow an application or library that uses themed icons to function requiring files to be present in the file system. For instance, the default images for all of GTK+'s stock icons are registered as built-in icons.<p>
In general, if you use <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#e2">add_builtin_icon()</a> you should also install the icon in the icon theme, so that the icon is generally available. Note different images can be registered for the same icon name at different sizes.<p>
This method will generally be used with pixbufs loaded inline (see <a class="el" href="classGFC_1_1Gdk_1_1Pixbuf.html#e7">Gdk::Pixbuf::create(int, const unsigned char*, bool, G::Error*)</a>); </td>
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<a class="anchor" name="z591_3" doxytag="GFC::Gtk::IconTheme::append_search_path" ></a><p>
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<td class="md" nowrap valign="top"> void GFC::Gtk::IconTheme::append_search_path </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> & </td>
<td class="mdname1" valign="top" nowrap> <em>path</em> </td>
<td class="md" valign="top"> ) </td>
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Appends a directory to the search path (see <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_1">set_search_path()</a>).
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>path</em> </td><td>The directory name to append to the icon path. </td></tr>
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<a class="anchor" name="z590_3" doxytag="GFC::Gtk::IconTheme::get_example_icon_name" ></a><p>
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<td class="md" nowrap valign="top"> <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> GFC::Gtk::IconTheme::get_example_icon_name </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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<p>
Gets the name of an icon that is representative of the current theme (for instance, to use when presenting a list of themes to the user).
<p>
<dl compact><dt><b>Returns:</b></dt><dd>The name of an example icon or null. </dd></dl>
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<a class="anchor" name="e0" doxytag="GFC::Gtk::IconTheme::get_for_screen" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html">IconTheme</a>* GFC::Gtk::IconTheme::get_for_screen </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="el" href="classGFC_1_1Gdk_1_1Screen.html">Gdk::Screen</a> * </td>
<td class="mdname1" valign="top" nowrap> <em>screen</em> = <code>0</code> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [static]</code></td>
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<p>
Gets the icon theme object associated with <em>screen</em>.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>screen</em> </td><td>A <a class="el" href="classGFC_1_1Gdk_1_1Screen.html">Gdk::Screen</a>, or null for the default screen. </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>A unique <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html">IconTheme</a> associated with the given screen.</dd></dl>
<br>
If <em>screen</em> is null the icon theme for the default screen is returned. The icon theme is associated with the screen and can be used as long as the screen is open.<p>
If this method has not previously been called for the given screen, a new icon theme object will be created and associated with the screen. Icon theme objects are fairly expensive to create, so using this method is usually a better choice than constructing a new icon theme object and setting the screen yourself. By using this method a single icon theme object will be shared between users. </td>
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<a class="anchor" name="z590_2" doxytag="GFC::Gtk::IconTheme::get_search_path" ></a><p>
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<td class="md" nowrap valign="top"> std::vector<<a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a>> GFC::Gtk::IconTheme::get_search_path </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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<p>
Gets the current search path (see <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_1">set_search_path()</a>).
<p>
<dl compact><dt><b>Returns:</b></dt><dd>A list of icon theme path directories. </dd></dl>
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<a class="anchor" name="z590_5" doxytag="GFC::Gtk::IconTheme::has_icon" ></a><p>
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<td class="md" nowrap valign="top"> bool GFC::Gtk::IconTheme::has_icon </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> & </td>
<td class="mdname1" valign="top" nowrap> <em>icon_name</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const</td>
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Checks whether an icon theme includes an icon for a particular name.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>icon_name</em> </td><td>The name of an icon. </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd><em>true</em> if icon theme includes an icon for <em>icon_name</em>. </dd></dl>
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<a class="anchor" name="z591_13" doxytag="GFC::Gtk::IconTheme::list_icons" ></a><p>
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<td class="md" nowrap valign="top"> std::vector<<a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a>> GFC::Gtk::IconTheme::list_icons </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> & </td>
<td class="mdname1" valign="top" nowrap> <em>context</em> </td>
<td class="md" valign="top"> ) </td>
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<p>
Lists the icons in the current icon theme.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>A vector of <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> holding the names of all the icons in the theme.</dd></dl>
<br>
Only a subset of the icons can be listed by providing a context string. The set of values for the context string is system dependent, but will typically include such values as 'apps' and 'mimetypes'. <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>context</em> </td><td>A string identifying a particular type of icon, or null to list all icons. </td></tr>
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<a class="anchor" name="z591_11" doxytag="GFC::Gtk::IconTheme::load_icon" ></a><p>
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<td class="md" nowrap valign="top"> <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1Pointer.html">Pointer</a><<a class="el" href="classGFC_1_1Gdk_1_1Pixbuf.html">Gdk::Pixbuf</a>> GFC::Gtk::IconTheme::load_icon </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> & </td>
<td class="mdname" nowrap> <em>icon_name</em>, </td>
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<td class="md" nowrap>int </td>
<td class="mdname" nowrap> <em>size</em>, </td>
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<td class="md" nowrap><a class="el" href="namespaceGFC_1_1Gtk.html#a197">IconLookupFlagsField</a> </td>
<td class="mdname" nowrap> <em>flags</em>, </td>
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<td class="md" nowrap><a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1G_1_1Error.html">G::Error</a> * </td>
<td class="mdname" nowrap> <em>error</em> = <code>0</code></td>
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<td class="md">) </td>
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<p>
Looks up an icon in an icon theme, scales it to the given size and renders it into a pixbuf.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>icon_name</em> </td><td>The name of the icon to lookup. </td></tr>
<tr><td></td><td valign=top><em>size</em> </td><td>The desired icon size. </td></tr>
<tr><td></td><td valign=top><em>flags</em> </td><td>The <a class="el" href="namespaceGFC_1_1Gtk.html#a350">Gtk::IconLookupFlags</a> modifying the behavior of the icon lookup. </td></tr>
<tr><td></td><td valign=top><em>error</em> </td><td>The location to store error information on failure, or null. </td></tr>
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</dl>
<dl compact><dt><b>Returns:</b></dt><dd>A smart pointer to the rendered icon, or null if the icon isn't found.</dd></dl>
<br>
This is a convenience method; if more details about the icon are needed, use <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_9">lookup_icon()</a> followed by <a class="el" href="classGFC_1_1Gtk_1_1IconInfo.html#z586_0">Gtk::IconInfo::load_icon()</a>. Note the size of the resulting icon may not be exactly the requested size (see <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_11">load_icon()</a>).<p>
The rendered icon may be a newly created icon or a new reference to an internal icon, so you must not modify the icon. </td>
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<a class="anchor" name="z591_9" doxytag="GFC::Gtk::IconTheme::lookup_icon" ></a><p>
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<td class="md" nowrap valign="top"> <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1Pointer.html">Pointer</a><<a class="el" href="classGFC_1_1Gtk_1_1IconInfo.html">IconInfo</a>> GFC::Gtk::IconTheme::lookup_icon </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> & </td>
<td class="mdname" nowrap> <em>icon_name</em>, </td>
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<td class="md" nowrap>int </td>
<td class="mdname" nowrap> <em>size</em>, </td>
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<td class="md" nowrap><a class="el" href="namespaceGFC_1_1Gtk.html#a197">IconLookupFlagsField</a> </td>
<td class="mdname" nowrap> <em>flags</em></td>
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<td class="md">) </td>
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<p>
Looks up a named icon and returns a structure containing information such as the filename of the icon.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>icon_name</em> </td><td>The name of the icon to lookup. </td></tr>
<tr><td></td><td valign=top><em>size</em> </td><td>The desired icon size. </td></tr>
<tr><td></td><td valign=top><em>flags</em> </td><td>The <a class="el" href="namespaceGFC_1_1Gtk.html#a350">Gtk::IconLookupFlags</a> modifying the behavior of the icon lookup. </td></tr>
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</dl>
<dl compact><dt><b>Returns:</b></dt><dd>An <a class="el" href="classGFC_1_1Gtk_1_1IconInfo.html">IconInfo</a> object containing information about the icon, or null if no icon was found.</dd></dl>
<br>
The icon can then be rendered into a pixbuf using <a class="el" href="classGFC_1_1Gtk_1_1IconInfo.html#z586_0">Gtk::IconInfo::load_icon()</a>. <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_11">Gtk::IconTheme::load_icon()</a> combines these two steps if all you need is the pixbuf. </td>
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<a class="anchor" name="z591_5" doxytag="GFC::Gtk::IconTheme::prepend_search_path" ></a><p>
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<td class="md" nowrap valign="top"> void GFC::Gtk::IconTheme::prepend_search_path </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> & </td>
<td class="mdname1" valign="top" nowrap> <em>path</em> </td>
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<p>
Prepends a directory to the search path (see <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z591_1">set_search_path()</a>).
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>path</em> </td><td>The directory name to prepend to the icon path. </td></tr>
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<a class="anchor" name="z591_14" doxytag="GFC::Gtk::IconTheme::rescan_if_needed" ></a><p>
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<td class="md" nowrap valign="top"> bool GFC::Gtk::IconTheme::rescan_if_needed </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
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<p>
Checks to see if the icon theme has changed; if it has, any currently cached information is discarded and will be reloaded next time the icon theme is accessed.
<p>
<dl compact><dt><b>Returns:</b></dt><dd><em>true</em> if the icon theme has changed and needed to be reloaded. </dd></dl>
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<a class="anchor" name="z591_7" doxytag="GFC::Gtk::IconTheme::set_custom_theme" ></a><p>
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<td class="md" nowrap valign="top"> void GFC::Gtk::IconTheme::set_custom_theme </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> & </td>
<td class="mdname1" valign="top" nowrap> <em>theme_name</em> </td>
<td class="md" valign="top"> ) </td>
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<p>
Sets the name of the icon theme that the <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html">IconTheme</a> object uses, overriding system configuration.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>theme_name</em> </td><td>The name of icon theme to use instead of the configured theme.</td></tr>
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This method cannot be called on the icon theme objects returned from <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#e0">get_for_screen()</a>. </td>
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<a class="anchor" name="z591_0" doxytag="GFC::Gtk::IconTheme::set_screen" ></a><p>
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<td class="md" nowrap valign="top"> void GFC::Gtk::IconTheme::set_screen </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="classGFC_1_1Gdk_1_1Screen.html">Gdk::Screen</a> * </td>
<td class="mdname1" valign="top" nowrap> <em>screen</em> </td>
<td class="md" valign="top"> ) </td>
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<p>
Sets the screen for an icon theme.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>screen</em> </td><td>A <a class="el" href="classGFC_1_1Gdk_1_1Screen.html">Gdk::Screen</a>.</td></tr>
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<br>
The screen is used to track the user's currently configured icon theme, which might be different for different screens. </td>
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<a class="anchor" name="z591_1" doxytag="GFC::Gtk::IconTheme::set_search_path" ></a><p>
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<td class="md" nowrap valign="top"> void GFC::Gtk::IconTheme::set_search_path </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const std::vector< <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1String.html">String</a> > & </td>
<td class="mdname1" valign="top" nowrap> <em>path</em> </td>
<td class="md" valign="top"> ) </td>
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<p>
Sets the search path for the icon theme object.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>path</em> </td><td>A vector of directories that are searched for icon themes.</td></tr>
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</dl>
<br>
When looking for an icon theme, GTK+ will search for a subdirectory of one or more of the directories in path with the same name as the icon theme. Note, themes from multiple of the path elements are combined to allow themes to be extended by adding icons in the user's home directory.<p>
In addition if an icon found isn't found either in the current icon theme or the default icon theme, and an image file with the right name is found directly in one of the elements of path, then that image will be used for the icon name. (This is legacy feature, and new icons should be put into the default icon theme, which is called DEFAULT_THEME_NAME, rather than directly on the icon path.) </td>
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="z588_2" doxytag="GFC::Gtk::IconTheme::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">ChangedSignalType</a> <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z588_2">GFC::Gtk::IconTheme::changed_signal</a><code> [static, protected]</code> </td>
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<p>
Changed signal (see <a class="el" href="classGFC_1_1Gtk_1_1IconTheme.html#z592_0">sig_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="icontheme_8hh-source.html">icontheme.hh</a></ul>
<hr size="1"><address style="align: right;"><small>Generated on Tue Aug 24 00:34:40 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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