|
Server : Apache/2.2.17 (Unix) mod_ssl/2.2.17 OpenSSL/0.9.8e-fips-rhel5 DAV/2 PHP/5.2.17 System : Linux localhost 2.6.18-419.el5 #1 SMP Fri Feb 24 22:47:42 UTC 2017 x86_64 User : nobody ( 99) PHP Version : 5.2.17 Disable Function : NONE Directory : /usr/share/gtk-doc/html/gtk/ |
Upload File : |
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>Migrating from old menu and toolbar systems to GtkAction</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.69.1">
<link rel="start" href="index.html" title="GTK+ Reference Manual">
<link rel="up" href="migrating.html" title="Part IV. Migrating from Previous Versions of GTK+">
<link rel="prev" href="gtkfilechooser-new-features.html" title="New features">
<link rel="next" href="ui-manager.html" title="User Interface Manager Object">
<meta name="generator" content="GTK-Doc V1.6 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
<link rel="part" href="gtk.html" title="Part I. GTK+ Overview">
<link rel="part" href="gtkbase.html" title="Part II. GTK+ Core Reference">
<link rel="part" href="gtkobjects.html" title="Part III. GTK+ Widgets and Objects">
<link rel="chapter" href="ch01.html" title="Object Hierarchy">
<link rel="chapter" href="ch02.html" title="Widget Gallery">
<link rel="chapter" href="WindowWidgets.html" title="Windows">
<link rel="chapter" href="DisplayWidgets.html" title="Display Widgets">
<link rel="chapter" href="ButtonWidgets.html" title="Buttons and Toggles">
<link rel="chapter" href="NumericEntry.html" title="Numeric/Text Data Entry">
<link rel="chapter" href="TextWidgetObjects.html" title="Multiline Text Editor">
<link rel="chapter" href="TreeWidgetObjects.html" title="Tree, List and Icon Grid Widgets">
<link rel="chapter" href="MenusAndCombos.html" title="Menus, Combo Box, Toolbar">
<link rel="chapter" href="Actions.html" title="Action-based menus and toolbars">
<link rel="chapter" href="SelectorWidgets.html" title="Selectors (File/Font/Color/Input Devices)">
<link rel="chapter" href="LayoutContainers.html" title="Layout Containers">
<link rel="chapter" href="Ornaments.html" title="Ornaments">
<link rel="chapter" href="ScrollingWidgets.html" title="Scrolling">
<link rel="chapter" href="Printing.html" title="Printing">
<link rel="chapter" href="MiscObjects.html" title="Miscellaneous">
<link rel="chapter" href="AbstractObjects.html" title="Abstract Base Classes">
<link rel="chapter" href="PlugSocket.html" title="Cross-process Embedding">
<link rel="chapter" href="SpecialObjects.html" title="Special-purpose features">
<link rel="chapter" href="RecentDocuments.html" title="Recently Used Documents">
<link rel="chapter" href="DeprecatedObjects.html" title="Deprecated">
<link rel="part" href="migrating.html" title="Part IV. Migrating from Previous Versions of GTK+">
<link rel="chapter" href="gtk-migrating-checklist.html" title="Migration Checklist">
<link rel="chapter" href="gtk-migrating-GtkFileChooser.html" title="Migrating from GtkFileSelection to GtkFileChooser">
<link rel="chapter" href="gtk-migrating-GtkAction.html" title="Migrating from old menu and toolbar systems to GtkAction">
<link rel="chapter" href="gtk-migrating-GtkComboBox.html" title="Migrating from GtkOptionMenu and GtkCombo to GtkComboBox and
GtkComboBoxEntry">
<link rel="chapter" href="gtk-migrating-GtkIconView.html" title="Migrating from GnomeIconList to GtkIconView">
<link rel="chapter" href="gtk-migrating-GtkAboutDialog.html" title="Migrating from GnomeAbout to GtkAboutDialog">
<link rel="chapter" href="gtk-migrating-GtkColorButton.html" title="Migrating from GnomeColorPicker to GtkColorButton">
<link rel="chapter" href="gtk-migrating-GtkAssistant.html" title="Migrating from GnomeDruid to GtkAssistant">
<link rel="chapter" href="gtk-migrating-GtkRecentChooser.html" title="Migrating from EggRecent to GtkRecentChooser">
<link rel="chapter" href="gtk-migrating-GtkLinkButton.html" title="Migrating from GnomeHRef to GtkLinkButton">
<link rel="part" href="pt05.html" title="Part V. GTK+ Tools">
<link rel="glossary" href="glossary.html" title="Glossary">
<link rel="index" href="ix01.html" title="Index">
<link rel="index" href="ix02.html" title="Index of deprecated symbols">
<link rel="index" href="ix03.html" title="Index of new symbols in 2.2">
<link rel="index" href="ix04.html" title="Index of new symbols in 2.4">
<link rel="index" href="ix05.html" title="Index of new symbols in 2.6">
<link rel="index" href="ix06.html" title="Index of new symbols in 2.8">
<link rel="index" href="ix07.html" title="Index of new symbols in 2.10">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle">
<td><a accesskey="p" href="gtkfilechooser-new-features.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
<td><a accesskey="u" href="migrating.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
<th width="100%" align="center">GTK+ Reference Manual</th>
<td><a accesskey="n" href="ui-manager.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
</tr></table>
<div class="chapter" lang="en">
<div class="titlepage"><div>
<div><h2 class="title">
<a name="gtk-migrating-GtkAction"></a>Migrating from old menu and toolbar systems to GtkAction</h2></div>
<div><div class="author">
<h3 class="author">
<span class="firstname">Federico</span> <span class="surname">Mena-Quintero</span>
</h3>
<div class="affiliation"><div class="address"><p><br>
  <code class="email"><<a href="mailto:federicoximian.com">federico<em class="parameter"><code>ximian.com</code></em></a>></code><br>
</p></div></div>
</div></div>
</div></div>
<div class="toc"><dl>
<dt><span class="section"><a href="gtk-migrating-GtkAction.html#actions-and-action-groups">Actions and Action Groups</a></span></dt>
<dt><span class="section"><a href="ui-manager.html">User Interface Manager Object</a></span></dt>
<dt><span class="section"><a href="migrating-gnomeuiinfo.html">Migrating from GnomeUIInfo</a></span></dt>
</dl></div>
<p>
Prior to GTK+ 2.4, there were several APIs in use to create menus
and toolbars. GTK+ itself included <a href="GtkItemFactory.html" title="GtkItemFactory"><span class="type">GtkItemFactory</span></a>, which was
historically used in the GIMP; libgnomeui provided the gnome-ui
set of macros; libbonoboui provided a complex mechanism to do menu
merging across embedded components. GTK+ 2.4 includes a system
for creating menus and toolbars, with merging of items, based
around the <a href="GtkAction.html" title="GtkAction"><span class="type">GtkAction</span></a> mechanism.
</p>
<div class="section" lang="en">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="actions-and-action-groups"></a>Actions and Action Groups</h2></div></div></div>
<p>
A <a href="GtkAction.html" title="GtkAction"><span class="type">GtkAction</span></a> represents an operation that the user can perform from
the menus and toolbars of an application. It is similar to "verbs"
in other menu systems. A <a href="GtkAction.html" title="GtkAction"><span class="type">GtkAction</span></a> has a name, which is its identifier,
and it can have several widgets that represent it in the user interface.
For example, an action for <span class="symbol">EditCopy</span> can have a menu item
as well as a toolbar button associated to it. If there is nothing selected
in the document, the application can simply de-sensitize the
<span class="symbol">EditCopy</span> action; this will cause both the menu
item and the toolbar button to be de-sensitized automatically.
Similarly, whenever the user selects the menu item or the
toolbar button associated to the <span class="symbol">EditCopy</span>
action, the corresponding <a href="GtkAction.html" title="GtkAction"><span class="type">GtkAction</span></a> object will emit an
"activate" signal.
</p>
<p>
<a href="GtkActionGroup.html" title="GtkActionGroup"><span class="type">GtkActionGroup</span></a> is simply a group of <a href="GtkAction.html" title="GtkAction"><span class="type">GtkAction</span></a> objects. An
application may want to have several groups: one for global
actions such as "new document", "about", and "exit"; then one
group for each open document with actions specific to the
document, such as "cut", "copy", "paste", and "print".
</p>
<p>
Normal actions are simply commands, such as
<span class="symbol">FileSave</span> or <span class="symbol">EditCopy</span>. Toggle
actions can be active or inactive, such as
<span class="symbol">FormatBold</span> or <span class="symbol">ViewShowRulers</span>.
Radio actions define a set of items for which one and only one
can be active at a time, for example, {
<span class="symbol">ViewHighQuality</span>,
<span class="symbol">ViewNormalQuality</span>,
<span class="symbol">ViewLowQuality</span> }.
</p>
</div>
</div>
</body>
</html>