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GtkHeaderBar: Add a ::has-subtitle property

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It is a fairly common case to just want a title, and not
reserve extra space for a subtitle. This is much easier
to get right by setting a boolean property than by
constructing a custom title widget.
This commit is contained in:
Matthias Clasen 2013-12-10 22:57:13 -05:00
parent b6a6729ce1
commit 1a6a86a867
3 changed files with 111 additions and 14 deletions
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2
docs/reference/gtk/gtk3-sections.txt
View File

@ -7688,6 +7688,8 @@ gtk_header_bar_set_title
gtk_header_bar_get_title
gtk_header_bar_set_subtitle
gtk_header_bar_get_subtitle
gtk_header_bar_set_has_subtitle
gtk_header_bar_get_has_subtitle
gtk_header_bar_set_custom_title
gtk_header_bar_get_custom_title
gtk_header_bar_pack_start

117
gtk/gtkheaderbar.c
View File

@ -53,6 +53,7 @@ struct _GtkHeaderBarPrivate
GtkWidget *subtitle_label;
GtkWidget *label_box;
GtkWidget *label_sizing_box;
GtkWidget *subtitle_sizing_label;
GtkWidget *custom_title;
GtkWidget *close_button;
GtkWidget *separator;
@ -60,6 +61,7 @@ struct _GtkHeaderBarPrivate
gboolean show_fallback_app_menu;
GtkWidget *menu_button;
GtkWidget *menu_separator;
gboolean has_subtitle;
GList *children;
};
@ -75,6 +77,7 @@ enum {
PROP_0,
PROP_TITLE,
PROP_SUBTITLE,
PROP_HAS_SUBTITLE,
PROP_CUSTOM_TITLE,
PROP_SPACING,
PROP_SHOW_CLOSE_BUTTON,
@ -126,8 +129,10 @@ init_sizing_box (GtkHeaderBar *bar)
* in case we have only the title.
*/
priv->label_sizing_box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_widget_show (priv->label_sizing_box);
w = gtk_label_new (NULL);
gtk_widget_show (w);
context = gtk_widget_get_style_context (w);
gtk_style_context_add_class (context, "title");
gtk_box_pack_start (GTK_BOX (priv->label_sizing_box), w, FALSE, FALSE, 0);
@ -143,8 +148,8 @@ init_sizing_box (GtkHeaderBar *bar)
gtk_label_set_line_wrap (GTK_LABEL (w), FALSE);
gtk_label_set_single_line_mode (GTK_LABEL (w), TRUE);
gtk_label_set_ellipsize (GTK_LABEL (w), PANGO_ELLIPSIZE_END);
gtk_widget_show_all (priv->label_sizing_box);
gtk_widget_set_visible (w, priv->has_subtitle || priv->subtitle);
priv->subtitle_sizing_label = w;
}
GtkWidget *
@ -392,6 +397,7 @@ gtk_header_bar_init (GtkHeaderBar *bar)
priv->separator = NULL;
priv->children = NULL;
priv->spacing = DEFAULT_SPACING;
priv->has_subtitle = TRUE;
init_sizing_box (bar);
construct_label_box (bar);
@ -1082,7 +1088,7 @@ gtk_header_bar_size_allocate (GtkWidget *widget,
/**
* gtk_header_bar_set_title:
* @bar: a #GtkHeaderBar
* @title: (allow-none): a title
* @title: (allow-none): a title, or %NULL
*
* Sets the title of the #GtkHeaderBar. The title should help a user
* identify the current view. A good title should not include the
@ -1137,16 +1143,14 @@ gtk_header_bar_get_title (GtkHeaderBar *bar)
/**
* gtk_header_bar_set_subtitle:
* @bar: a #GtkHeaderBar
* @subtitle: (allow-none): a subtitle
* @subtitle: (allow-none): a subtitle, or %NULL
*
* Sets the subtitle of the #GtkHeaderBar. The title should give a user
* an additional detail to help him identify the current view.
*
* Note that GtkHeaderBar always reserves room for the subtitle, even
* if none is currently set. If this is not desired, use
* gtk_header_bar_set_custom_title() to place your own label in the
* title position. To achieve the same style, use the "title" style
* class.
* Note that GtkHeaderBar by default reserves room for the subtitle,
* even if none is currently set. If this is not desired, set the
* #GtkHeaderBar:has-subtitle property to %FALSE.
*
* Since: 3.10
*/
@ -1170,6 +1174,8 @@ gtk_header_bar_set_subtitle (GtkHeaderBar *bar,
gtk_widget_queue_resize (GTK_WIDGET (bar));
}
gtk_widget_set_visible (priv->subtitle_sizing_label, priv->has_subtitle || priv->subtitle);
g_object_notify (G_OBJECT (bar), "subtitle");
}
@ -1200,11 +1206,16 @@ gtk_header_bar_get_subtitle (GtkHeaderBar *bar)
* @bar: a #GtkHeaderBar
* @title_widget: (allow-none): a custom widget to use for a title
*
* Sets a custom title for the #GtkHeaderBar. The title should help a
* user identify the current view. This supercedes any title set by
* gtk_header_bar_set_title() or gtk_header_bar_set_subtitle().
* You should set the custom title to %NULL, for the header title label
* to be visible again.
* Sets a custom title for the #GtkHeaderBar.
*
* The title should help a user identify the current view. This
* supersedes any title set by gtk_header_bar_set_title() or
* gtk_header_bar_set_subtitle(). To achieve the same style as
* the builtin title and subtitle, use the "title" and "subtitle"
* style classes.
*
* You should set the custom title to %NULL, for the header title
* label to be visible again.
*
* Since: 3.10
*/
@ -1328,6 +1339,10 @@ gtk_header_bar_get_property (GObject *object,
g_value_set_boolean (value, priv->show_fallback_app_menu);
break;
case PROP_HAS_SUBTITLE:
g_value_set_boolean (value, gtk_header_bar_get_has_subtitle (bar));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -1370,6 +1385,10 @@ gtk_header_bar_set_property (GObject *object,
gtk_header_bar_set_show_fallback_app_menu (bar, g_value_get_boolean (value));
break;
case PROP_HAS_SUBTITLE:
gtk_header_bar_set_has_subtitle (bar, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -1742,6 +1761,22 @@ gtk_header_bar_class_init (GtkHeaderBarClass *class)
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkHeaderBar:has-subtitle:
*
* If %TRUE, reserve space for a subtitle, even if none
* is currently set.
*
* Since: 3.12
*/
g_object_class_install_property (object_class,
PROP_HAS_SUBTITLE,
g_param_spec_boolean ("has-subtitle",
P_("Has Subtitle"),
P_("Whether to reserve space for a subtitle"),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkHeaderBar:show-fallback-app-menu:
*
@ -1952,3 +1987,57 @@ gtk_header_bar_set_show_fallback_app_menu (GtkHeaderBar *bar,
g_object_notify (G_OBJECT (bar), "show-fallback-app-menu");
}
/**
* gtk_header_bar_set_has_subtitle:
* @bar: a #GtkHeaderBar
* @setting: %TRUE to reserve space for a subtitle
*
* Sets whether the header bar should reserve space
* for a subtitle, even if none is currently set.
*
* Since: 3.12
*/
void
gtk_header_bar_set_has_subtitle (GtkHeaderBar *bar,
gboolean setting)
{
GtkHeaderBarPrivate *priv;
g_return_if_fail (GTK_IS_HEADER_BAR (bar));
priv = gtk_header_bar_get_instance_private (bar);
setting = setting != FALSE;
if (priv->has_subtitle == setting)
return;
priv->has_subtitle = setting;
gtk_widget_set_visible (priv->subtitle_sizing_label, setting || priv->subtitle);
gtk_widget_queue_resize (GTK_WIDGET (bar));
g_object_notify (G_OBJECT (bar), "has-subtitle");
}
/**
* gtk_header_bar_get_has_subtitle:
* @bar: a #GtkHeaderBar
*
* Returns whether the header bar reserves space
* for a subtitle.
*
* Since: 3.12
*/
gboolean
gtk_header_bar_get_has_subtitle (GtkHeaderBar *bar)
{
GtkHeaderBarPrivate *priv;
g_return_val_if_fail (GTK_IS_HEADER_BAR (bar), FALSE);
priv = gtk_header_bar_get_instance_private (bar);
return priv->has_subtitle;
}

6
gtk/gtkheaderbar.h
View File

@ -97,6 +97,12 @@ GDK_AVAILABLE_IN_3_12
void gtk_header_bar_set_show_fallback_app_menu (GtkHeaderBar *bar,
gboolean setting);
GDK_AVAILABLE_IN_3_12
void gtk_header_bar_set_has_subtitle (GtkHeaderBar *bar,
gboolean setting);
GDK_AVAILABLE_IN_3_12
gboolean gtk_header_bar_get_has_subtitle (GtkHeaderBar *bar);
G_END_DECLS
#endif /* __GTK_HEADER_BAR_H__ */