forked from AuroraMiddleware/gtk
2d90383caa
Sun Jul 29 17:14:01 2001 Tim Janik <timj@gtk.org>
* gtk/gtkitemfactory.c (gtk_item_factory_parse_rc): use g_file_test()
instead of long deprecated g_scanner_stat_mode().
133 lines
4.1 KiB
Plaintext
133 lines
4.1 KiB
Plaintext
<!-- ##### SECTION Title ##### -->
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GtkAccelLabel
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<!-- ##### SECTION Short_Description ##### -->
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a label which displays an accelerator key on the right of the text.
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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The #GtkAccelLabel widget is a subclass of #GtkLabel that also displays an
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accelerator key on the right of the label text, e.g. 'Ctl+S'.
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It is commonly used in menus to show the keyboard short-cuts for commands.
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</para>
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<para>
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The accelerator key to display is not set explicitly.
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Instead, the #GtkAccelLabel displays the accelerators which have been added to
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a particular widget. This widget is set by calling
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gtk_accel_label_set_accel_widget().
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</para>
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<para>
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For example, a #GtkMenuItem widget may have an accelerator added to emit the
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"activate" signal when the 'Ctl+S' key combination is pressed.
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A #GtkAccelLabel is created and added to the #GtkMenuItem, and
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gtk_accel_label_set_accel_widget() is called with the #GtkMenuItem as the
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second argument. The #GtkAccelLabel will now display 'Ctl+S' after its label.
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</para>
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<para>
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Note that creating a #GtkMenuItem with gtk_menu_item_new_with_label() (or
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one of the similar functions for #GtkCheckMenuItem and #GtkRadioMenuItem)
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automatically adds a #GtkAccelLabel to the #GtkMenuItem and calls
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gtk_accel_label_set_accel_widget() to set it up for you.
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</para>
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<para>
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A #GtkAccelLabel will only display accelerators which have GTK_ACCEL_VISIBLE
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set (see #GtkAccelFlags).
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A #GtkAccelLabel can display multiple accelerators and even signal names,
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though it is almost always used to display just one accelerator key.
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</para>
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<example>
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<title>Creating a simple menu item with an accelerator key.</title>
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<programlisting>
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GtkWidget *save_item;
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GtkAccelGroup *accel_group;
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/* Create a #GtkAccelGroup and add it to the window. */
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accel_group = gtk_accel_group_new ();
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gtk_window_add_accel_group (GTK_WINDOW (window), accel_group);
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/* Create the menu item using the convenience function. */
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save_item = gtk_menu_item_new_with_label ("Save");
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gtk_widget_show (save_item);
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gtk_container_add (GTK_CONTAINER (menu), save_item);
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/* Now add the accelerator to the #GtkMenuItem. Note that since we called
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gtk_menu_item_new_with_label() to create the #GtkMenuItem the
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#GtkAccelLabel is automatically set up to display the #GtkMenuItem
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accelerators. We just need to make sure we use GTK_ACCEL_VISIBLE here. */
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gtk_widget_add_accelerator (save_item, "activate", accel_group,
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GDK_s, GDK_CONTROL_MASK, GTK_ACCEL_VISIBLE);
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</programlisting>
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</example>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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<variablelist>
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<varlistentry>
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<term><link linkend="gtk-keyboard-accelerators">Keyboard Accelerators</link>
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</term>
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<listitem><para>installing and using keyboard short-cuts.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>#GtkItemFactory</term>
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<listitem><para>an easier way to create menus.</para></listitem>
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</varlistentry>
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</variablelist>
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</para>
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<!-- ##### STRUCT GtkAccelLabel ##### -->
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<para>
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The #GtkAccelLabel-struct struct contains private data only, and
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should be accessed using the functions below.
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</para>
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<!-- ##### FUNCTION gtk_accel_label_new ##### -->
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<para>
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Creates a new #GtkAccelLabel.
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</para>
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@string: the label string.
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@Returns: a new #GtkAccelLabel.
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<!-- ##### MACRO gtk_accel_label_set_accel_widget ##### -->
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<para>
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Sets the widget whose accelerators are to be shown.
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</para>
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@accel_label: a #GtkAccelLabel.
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@accel_widget: the widget whose accelerators are to be displayed.
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<!-- ##### FUNCTION gtk_accel_label_get_accel_width ##### -->
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<para>
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Returns the width needed to display the accelerator key(s).
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This is used by menus to align all of the #GtkMenuItem widgets, and shouldn't
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be needed by applications.
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</para>
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@accel_label: a #GtkAccelLabel.
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@Returns:
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<!-- ##### FUNCTION gtk_accel_label_refetch ##### -->
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<para>
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Recreates the string representing the accelerator keys.
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This should not be needed since the string is automatically updated whenever
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accelerators are added or removed from the associated widget.
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</para>
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@accel_label: a #GtkAccelLabel.
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@Returns: always returns FALSE.
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<!-- ##### ARG GtkAccelLabel:accel-object ##### -->
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<para>
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</para>
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