forked from AuroraMiddleware/gtk
4684082232
This property was only used until now when there was neither an icon nor a label set, for arrow direction and popover placement. Starting with Gtk4, a GtkMenuButton with a label shows an arrow at the right (in LTR) of the label. Allow disabling the arrow or changing its direction using the direction property, to have a way to restore a Gtk3- like look or to improve popover placement. Fixes #2811.
1006 lines
29 KiB
C
1006 lines
29 KiB
C
/* GTK - The GIMP Toolkit
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*
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* Copyright (C) 2003 Ricardo Fernandez Pascual
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* Copyright (C) 2004 Paolo Borelli
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* Copyright (C) 2012 Bastien Nocera
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* SECTION:gtkmenubutton
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* @short_description: A widget that shows a popup when clicked on
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* @title: GtkMenuButton
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*
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* The #GtkMenuButton widget is used to display a popup when clicked on.
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* This popup can be provided either as a #GtkPopover or as an abstract
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* #GMenuModel.
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*
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* The #GtkMenuButton widget can show either an icon (set with the
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* #GtkMenuButton:icon-name property) or a label (set with the
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* #GtkMenuButton:label property). If neither is explicitly set,
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* a #GtkImage is automatically created, using an arrow image oriented
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* according to #GtkMenuButton:direction or the generic “open-menu-symbolic”
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* icon if the direction is not set.
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*
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* The positioning of the popup is determined by the #GtkMenuButton:direction
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* property of the menu button.
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*
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* For menus, the #GtkWidget:halign and #GtkWidget:valign properties of the
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* menu are also taken into account. For example, when the direction is
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* %GTK_ARROW_DOWN and the horizontal alignment is %GTK_ALIGN_START, the
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* menu will be positioned below the button, with the starting edge
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* (depending on the text direction) of the menu aligned with the starting
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* edge of the button. If there is not enough space below the button, the
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* menu is popped up above the button instead. If the alignment would move
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* part of the menu offscreen, it is “pushed in”.
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*
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* ## Direction = Down
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*
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* - halign = start
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*
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* 
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*
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* - halign = center
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*
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* 
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*
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* - halign = end
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*
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* 
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*
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* ## Direction = Up
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*
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* - halign = start
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*
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* 
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*
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* - halign = center
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*
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* 
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*
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* - halign = end
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*
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* 
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*
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* ## Direction = Left
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*
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* - valign = start
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*
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* 
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*
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* - valign = center
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*
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* 
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*
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* - valign = end
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*
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* 
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*
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* ## Direction = Right
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*
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* - valign = start
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*
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* 
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*
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* - valign = center
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*
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* 
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*
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* - valign = end
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*
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* 
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*
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* # CSS nodes
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*
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* GtkMenuButton has a single CSS node with name button. To differentiate
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* it from a plain #GtkButton, it gets the .popup style class.
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*/
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#include "config.h"
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#include "gtkactionable.h"
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#include "gtkimage.h"
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#include "gtkintl.h"
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#include "gtkmain.h"
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#include "gtkmenubutton.h"
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#include "gtkmenubuttonprivate.h"
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#include "gtkpopover.h"
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#include "gtkpopovermenu.h"
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#include "gtkprivate.h"
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#include "gtkstylecontext.h"
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#include "gtktypebuiltins.h"
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#include "gtklabel.h"
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#include "gtkbox.h"
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#include "gtkwidgetprivate.h"
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#include "gtkbuttonprivate.h"
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#include "gtknative.h"
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typedef struct _GtkMenuButtonClass GtkMenuButtonClass;
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typedef struct _GtkMenuButtonPrivate GtkMenuButtonPrivate;
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struct _GtkMenuButton
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{
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GtkWidget parent_instance;
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GtkWidget *button;
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GtkWidget *popover; /* Only one at a time can be set */
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GMenuModel *model;
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GtkMenuButtonCreatePopupFunc create_popup_func;
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gpointer create_popup_user_data;
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GDestroyNotify create_popup_destroy_notify;
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GtkWidget *label_widget;
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GtkWidget *arrow_widget;
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GtkArrowType arrow_type;
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};
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struct _GtkMenuButtonClass
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{
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GtkWidgetClass parent_class;
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};
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enum
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{
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PROP_0,
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PROP_MENU_MODEL,
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PROP_DIRECTION,
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PROP_POPOVER,
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PROP_ICON_NAME,
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PROP_LABEL,
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PROP_USE_UNDERLINE,
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PROP_HAS_FRAME,
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LAST_PROP
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};
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static GParamSpec *menu_button_props[LAST_PROP];
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G_DEFINE_TYPE (GtkMenuButton, gtk_menu_button, GTK_TYPE_WIDGET)
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static void gtk_menu_button_dispose (GObject *object);
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static void
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gtk_menu_button_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkMenuButton *self = GTK_MENU_BUTTON (object);
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switch (property_id)
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{
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case PROP_MENU_MODEL:
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gtk_menu_button_set_menu_model (self, g_value_get_object (value));
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break;
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case PROP_DIRECTION:
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gtk_menu_button_set_direction (self, g_value_get_enum (value));
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break;
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case PROP_POPOVER:
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gtk_menu_button_set_popover (self, g_value_get_object (value));
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break;
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case PROP_ICON_NAME:
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gtk_menu_button_set_icon_name (self, g_value_get_string (value));
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break;
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case PROP_LABEL:
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gtk_menu_button_set_label (self, g_value_get_string (value));
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break;
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case PROP_USE_UNDERLINE:
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gtk_menu_button_set_use_underline (self, g_value_get_boolean (value));
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break;
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case PROP_HAS_FRAME:
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gtk_menu_button_set_has_frame (self, g_value_get_boolean (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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gtk_menu_button_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkMenuButton *self = GTK_MENU_BUTTON (object);
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switch (property_id)
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{
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case PROP_MENU_MODEL:
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g_value_set_object (value, self->model);
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break;
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case PROP_DIRECTION:
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g_value_set_enum (value, self->arrow_type);
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break;
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case PROP_POPOVER:
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g_value_set_object (value, self->popover);
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break;
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case PROP_ICON_NAME:
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g_value_set_string (value, gtk_menu_button_get_icon_name (GTK_MENU_BUTTON (object)));
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break;
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case PROP_LABEL:
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g_value_set_string (value, gtk_menu_button_get_label (GTK_MENU_BUTTON (object)));
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break;
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case PROP_USE_UNDERLINE:
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g_value_set_boolean (value, gtk_menu_button_get_use_underline (GTK_MENU_BUTTON (object)));
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break;
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case PROP_HAS_FRAME:
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g_value_set_boolean (value, gtk_menu_button_get_has_frame (GTK_MENU_BUTTON (object)));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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gtk_menu_button_state_flags_changed (GtkWidget *widget,
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GtkStateFlags previous_state_flags)
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{
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GtkMenuButton *self = GTK_MENU_BUTTON (widget);
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if (!gtk_widget_is_sensitive (widget))
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{
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if (self->popover)
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gtk_widget_hide (self->popover);
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}
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}
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static void
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gtk_menu_button_toggled (GtkMenuButton *self)
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{
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const gboolean active = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (self->button));
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/* Might set a new menu/popover */
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if (active && self->create_popup_func)
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{
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self->create_popup_func (self, self->create_popup_user_data);
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}
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if (self->popover)
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{
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if (active)
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gtk_popover_popup (GTK_POPOVER (self->popover));
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else
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gtk_popover_popdown (GTK_POPOVER (self->popover));
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}
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}
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static void
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gtk_menu_button_measure (GtkWidget *widget,
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GtkOrientation orientation,
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int for_size,
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int *minimum,
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int *natural,
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int *minimum_baseline,
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int *natural_baseline)
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{
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GtkMenuButton *self = GTK_MENU_BUTTON (widget);
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gtk_widget_measure (self->button,
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orientation,
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for_size,
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minimum, natural,
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minimum_baseline, natural_baseline);
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}
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static void
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gtk_menu_button_size_allocate (GtkWidget *widget,
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int width,
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int height,
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int baseline)
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{
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GtkMenuButton *self= GTK_MENU_BUTTON (widget);
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gtk_widget_size_allocate (self->button,
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&(GtkAllocation) { 0, 0, width, height },
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baseline);
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if (self->popover)
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gtk_native_check_resize (GTK_NATIVE (self->popover));
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}
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static gboolean
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gtk_menu_button_focus (GtkWidget *widget,
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GtkDirectionType direction)
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{
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GtkMenuButton *self = GTK_MENU_BUTTON (widget);
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if (self->popover && gtk_widget_get_visible (self->popover))
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return gtk_widget_child_focus (self->popover, direction);
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else
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return gtk_widget_child_focus (self->button, direction);
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}
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static gboolean
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gtk_menu_button_grab_focus (GtkWidget *widget)
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{
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GtkMenuButton *self = GTK_MENU_BUTTON (widget);
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return gtk_widget_grab_focus (self->button);
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}
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static void
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gtk_menu_button_class_init (GtkMenuButtonClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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gobject_class->set_property = gtk_menu_button_set_property;
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gobject_class->get_property = gtk_menu_button_get_property;
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gobject_class->dispose = gtk_menu_button_dispose;
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widget_class->measure = gtk_menu_button_measure;
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widget_class->size_allocate = gtk_menu_button_size_allocate;
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widget_class->state_flags_changed = gtk_menu_button_state_flags_changed;
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widget_class->focus = gtk_menu_button_focus;
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widget_class->grab_focus = gtk_menu_button_grab_focus;
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/**
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* GtkMenuButton:menu-model:
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*
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* The #GMenuModel from which the popup will be created.
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*
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* See gtk_menu_button_set_menu_model() for the interaction with the
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* #GtkMenuButton:popup property.
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*/
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menu_button_props[PROP_MENU_MODEL] =
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g_param_spec_object ("menu-model",
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P_("Menu model"),
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P_("The model from which the popup is made."),
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G_TYPE_MENU_MODEL,
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GTK_PARAM_READWRITE);
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/**
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* GtkMenuButton:direction:
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*
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* The #GtkArrowType representing the direction in which the
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* menu or popover will be popped out.
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*/
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menu_button_props[PROP_DIRECTION] =
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g_param_spec_enum ("direction",
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P_("Direction"),
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P_("The direction the arrow should point."),
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GTK_TYPE_ARROW_TYPE,
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GTK_ARROW_DOWN,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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/**
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* GtkMenuButton:popover:
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*
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* The #GtkPopover that will be popped up when the button is clicked.
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*/
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menu_button_props[PROP_POPOVER] =
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g_param_spec_object ("popover",
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P_("Popover"),
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P_("The popover"),
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GTK_TYPE_POPOVER,
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G_PARAM_READWRITE);
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menu_button_props[PROP_ICON_NAME] =
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g_param_spec_string ("icon-name",
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P_("Icon Name"),
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P_("The name of the icon used to automatically populate the button"),
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NULL,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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menu_button_props[PROP_LABEL] =
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g_param_spec_string ("label",
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P_("Label"),
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P_("The label for the button"),
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NULL,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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menu_button_props[PROP_USE_UNDERLINE] =
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g_param_spec_boolean ("use-underline",
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P_("Use underline"),
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P_("If set, an underline in the text indicates the next character should be used for the mnemonic accelerator key"),
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FALSE,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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menu_button_props[PROP_HAS_FRAME] =
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g_param_spec_boolean ("has-frame",
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P_("Has frame"),
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P_("Whether the button has a frame"),
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TRUE,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
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g_object_class_install_properties (gobject_class, LAST_PROP, menu_button_props);
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gtk_widget_class_set_css_name (widget_class, I_("menubutton"));
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}
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static void
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set_arrow_type (GtkImage *image,
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GtkArrowType arrow_type,
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gboolean visible)
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{
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switch (arrow_type)
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{
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case GTK_ARROW_NONE:
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gtk_image_set_from_icon_name (image, "open-menu-symbolic");
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break;
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case GTK_ARROW_DOWN:
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gtk_image_set_from_icon_name (image, "pan-down-symbolic");
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break;
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case GTK_ARROW_UP:
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gtk_image_set_from_icon_name (image, "pan-up-symbolic");
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break;
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case GTK_ARROW_LEFT:
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gtk_image_set_from_icon_name (image, "pan-start-symbolic");
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break;
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case GTK_ARROW_RIGHT:
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gtk_image_set_from_icon_name (image, "pan-end-symbolic");
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break;
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default:
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break;
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}
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if (visible)
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gtk_widget_show (GTK_WIDGET (image));
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else
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gtk_widget_hide (GTK_WIDGET (image));
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}
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static void
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add_arrow (GtkMenuButton *self)
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{
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GtkWidget *arrow;
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arrow = gtk_image_new ();
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set_arrow_type (GTK_IMAGE (arrow), self->arrow_type, TRUE);
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gtk_button_set_child (GTK_BUTTON (self->button), arrow);
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self->arrow_widget = arrow;
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}
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static void
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gtk_menu_button_init (GtkMenuButton *self)
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{
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self->arrow_type = GTK_ARROW_DOWN;
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self->button = gtk_toggle_button_new ();
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gtk_widget_set_parent (self->button, GTK_WIDGET (self));
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g_signal_connect_swapped (self->button, "toggled", G_CALLBACK (gtk_menu_button_toggled), self);
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add_arrow (self);
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gtk_widget_set_sensitive (self->button, FALSE);
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gtk_widget_add_css_class (GTK_WIDGET (self), "popup");
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}
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/**
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* gtk_menu_button_new:
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*
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* Creates a new #GtkMenuButton widget with downwards-pointing
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* arrow as the only child. You can replace the child widget
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* with another #GtkWidget should you wish to.
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*
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* Returns: The newly created #GtkMenuButton widget
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*/
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GtkWidget *
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gtk_menu_button_new (void)
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{
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return g_object_new (GTK_TYPE_MENU_BUTTON, NULL);
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}
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static void
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update_sensitivity (GtkMenuButton *self)
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{
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gtk_widget_set_sensitive (self->button,
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self->popover != NULL ||
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self->create_popup_func != NULL);
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}
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static gboolean
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menu_deactivate_cb (GtkMenuButton *self)
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{
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (self->button), FALSE);
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return TRUE;
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}
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/**
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* gtk_menu_button_set_menu_model:
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* @menu_button: a #GtkMenuButton
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* @menu_model: (nullable): a #GMenuModel, or %NULL to unset and disable the
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* button
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*
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* Sets the #GMenuModel from which the popup will be constructed,
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* or %NULL to dissociate any existing menu model and disable the button.
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*
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* A #GtkPopover will be created from the menu model with gtk_popover_menu_new_from_model().
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* Actions will be connected as documented for this function.
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||
*
|
||
* If #GtkMenuButton:popover is already set, it will be dissociated from the @menu_button,
|
||
* and the property is set to %NULL.
|
||
*/
|
||
void
|
||
gtk_menu_button_set_menu_model (GtkMenuButton *menu_button,
|
||
GMenuModel *menu_model)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
g_return_if_fail (G_IS_MENU_MODEL (menu_model) || menu_model == NULL);
|
||
|
||
g_object_freeze_notify (G_OBJECT (menu_button));
|
||
|
||
if (menu_model)
|
||
g_object_ref (menu_model);
|
||
|
||
if (menu_model)
|
||
{
|
||
GtkWidget *popover;
|
||
|
||
popover = gtk_popover_menu_new_from_model (menu_model);
|
||
gtk_menu_button_set_popover (menu_button, popover);
|
||
}
|
||
else
|
||
{
|
||
gtk_menu_button_set_popover (menu_button, NULL);
|
||
}
|
||
|
||
menu_button->model = menu_model;
|
||
g_object_notify_by_pspec (G_OBJECT (menu_button), menu_button_props[PROP_MENU_MODEL]);
|
||
|
||
g_object_thaw_notify (G_OBJECT (menu_button));
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_get_menu_model:
|
||
* @menu_button: a #GtkMenuButton
|
||
*
|
||
* Returns the #GMenuModel used to generate the popup.
|
||
*
|
||
* Returns: (nullable) (transfer none): a #GMenuModel or %NULL
|
||
*/
|
||
GMenuModel *
|
||
gtk_menu_button_get_menu_model (GtkMenuButton *menu_button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_BUTTON (menu_button), NULL);
|
||
|
||
return menu_button->model;
|
||
}
|
||
|
||
static void
|
||
update_popover_direction (GtkMenuButton *self)
|
||
{
|
||
if (!self->popover)
|
||
return;
|
||
|
||
switch (self->arrow_type)
|
||
{
|
||
case GTK_ARROW_UP:
|
||
gtk_popover_set_position (GTK_POPOVER (self->popover), GTK_POS_TOP);
|
||
break;
|
||
case GTK_ARROW_DOWN:
|
||
case GTK_ARROW_NONE:
|
||
gtk_popover_set_position (GTK_POPOVER (self->popover), GTK_POS_BOTTOM);
|
||
break;
|
||
case GTK_ARROW_LEFT:
|
||
gtk_popover_set_position (GTK_POPOVER (self->popover), GTK_POS_LEFT);
|
||
break;
|
||
case GTK_ARROW_RIGHT:
|
||
gtk_popover_set_position (GTK_POPOVER (self->popover), GTK_POS_RIGHT);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
popover_destroy_cb (GtkMenuButton *menu_button)
|
||
{
|
||
gtk_menu_button_set_popover (menu_button, NULL);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_set_direction:
|
||
* @menu_button: a #GtkMenuButton
|
||
* @direction: a #GtkArrowType
|
||
*
|
||
* Sets the direction in which the popup will be popped up, as
|
||
* well as changing the arrow’s direction. The child will not
|
||
* be changed to an arrow if it was customized.
|
||
*
|
||
* If the does not fit in the available space in the given direction,
|
||
* GTK will its best to keep it inside the screen and fully visible.
|
||
*
|
||
* If you pass %GTK_ARROW_NONE for a @direction, the popup will behave
|
||
* as if you passed %GTK_ARROW_DOWN (although you won’t see any arrows).
|
||
*/
|
||
void
|
||
gtk_menu_button_set_direction (GtkMenuButton *menu_button,
|
||
GtkArrowType direction)
|
||
{
|
||
gboolean is_image_button;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
|
||
if (menu_button->arrow_type == direction)
|
||
return;
|
||
|
||
menu_button->arrow_type = direction;
|
||
g_object_notify_by_pspec (G_OBJECT (menu_button), menu_button_props[PROP_DIRECTION]);
|
||
|
||
/* Is it custom content? We don't change that */
|
||
is_image_button = menu_button->label_widget == NULL;
|
||
if (is_image_button && (menu_button->arrow_widget != gtk_button_get_child (GTK_BUTTON (menu_button->button))))
|
||
return;
|
||
|
||
set_arrow_type (GTK_IMAGE (menu_button->arrow_widget),
|
||
menu_button->arrow_type,
|
||
is_image_button || (menu_button->arrow_type != GTK_ARROW_NONE));
|
||
update_popover_direction (menu_button);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_get_direction:
|
||
* @menu_button: a #GtkMenuButton
|
||
*
|
||
* Returns the direction the popup will be pointing at when popped up.
|
||
*
|
||
* Returns: a #GtkArrowType value
|
||
*/
|
||
GtkArrowType
|
||
gtk_menu_button_get_direction (GtkMenuButton *menu_button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_BUTTON (menu_button), GTK_ARROW_DOWN);
|
||
|
||
return menu_button->arrow_type;
|
||
}
|
||
|
||
static void
|
||
gtk_menu_button_dispose (GObject *object)
|
||
{
|
||
GtkMenuButton *self = GTK_MENU_BUTTON (object);
|
||
|
||
if (self->popover)
|
||
{
|
||
g_signal_handlers_disconnect_by_func (self->popover,
|
||
menu_deactivate_cb,
|
||
object);
|
||
g_signal_handlers_disconnect_by_func (self->popover,
|
||
popover_destroy_cb,
|
||
object);
|
||
gtk_widget_unparent (self->popover);
|
||
self->popover = NULL;
|
||
}
|
||
|
||
g_clear_object (&self->model);
|
||
g_clear_pointer (&self->button, gtk_widget_unparent);
|
||
|
||
if (self->create_popup_destroy_notify)
|
||
self->create_popup_destroy_notify (self->create_popup_user_data);
|
||
|
||
G_OBJECT_CLASS (gtk_menu_button_parent_class)->dispose (object);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_set_popover:
|
||
* @menu_button: a #GtkMenuButton
|
||
* @popover: (nullable): a #GtkPopover, or %NULL to unset and disable the button
|
||
*
|
||
* Sets the #GtkPopover that will be popped up when the @menu_button is clicked,
|
||
* or %NULL to dissociate any existing popover and disable the button.
|
||
*
|
||
* If #GtkMenuButton:menu-model is set, the menu model is dissociated from the
|
||
* @menu_button, and the property is set to %NULL.
|
||
*/
|
||
void
|
||
gtk_menu_button_set_popover (GtkMenuButton *menu_button,
|
||
GtkWidget *popover)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
g_return_if_fail (GTK_IS_POPOVER (popover) || popover == NULL);
|
||
|
||
g_object_freeze_notify (G_OBJECT (menu_button));
|
||
|
||
g_clear_object (&menu_button->model);
|
||
|
||
if (menu_button->popover)
|
||
{
|
||
if (gtk_widget_get_visible (menu_button->popover))
|
||
gtk_widget_hide (menu_button->popover);
|
||
|
||
g_signal_handlers_disconnect_by_func (menu_button->popover,
|
||
menu_deactivate_cb,
|
||
menu_button);
|
||
g_signal_handlers_disconnect_by_func (menu_button->popover,
|
||
popover_destroy_cb,
|
||
menu_button);
|
||
|
||
gtk_widget_unparent (menu_button->popover);
|
||
}
|
||
|
||
menu_button->popover = popover;
|
||
|
||
if (popover)
|
||
{
|
||
gtk_widget_set_parent (menu_button->popover, GTK_WIDGET (menu_button));
|
||
g_signal_connect_swapped (menu_button->popover, "closed",
|
||
G_CALLBACK (menu_deactivate_cb), menu_button);
|
||
g_signal_connect_swapped (menu_button->popover, "destroy",
|
||
G_CALLBACK (popover_destroy_cb), menu_button);
|
||
update_popover_direction (menu_button);
|
||
}
|
||
|
||
update_sensitivity (menu_button);
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (menu_button), menu_button_props[PROP_POPOVER]);
|
||
g_object_notify_by_pspec (G_OBJECT (menu_button), menu_button_props[PROP_MENU_MODEL]);
|
||
g_object_thaw_notify (G_OBJECT (menu_button));
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_get_popover:
|
||
* @menu_button: a #GtkMenuButton
|
||
*
|
||
* Returns the #GtkPopover that pops out of the button.
|
||
* If the button is not using a #GtkPopover, this function
|
||
* returns %NULL.
|
||
*
|
||
* Returns: (nullable) (transfer none): a #GtkPopover or %NULL
|
||
*/
|
||
GtkPopover *
|
||
gtk_menu_button_get_popover (GtkMenuButton *menu_button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_BUTTON (menu_button), NULL);
|
||
|
||
return GTK_POPOVER (menu_button->popover);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_set_icon_name:
|
||
* @menu_button: a #GtkMenuButton
|
||
* @icon_name: the icon name
|
||
*
|
||
* Sets the name of an icon to show inside the menu button.
|
||
*/
|
||
void
|
||
gtk_menu_button_set_icon_name (GtkMenuButton *menu_button,
|
||
const char *icon_name)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
|
||
gtk_button_set_icon_name (GTK_BUTTON (menu_button->button), icon_name);
|
||
g_object_notify_by_pspec (G_OBJECT (menu_button), menu_button_props[PROP_ICON_NAME]);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_get_icon_name:
|
||
* @menu_button: a #GtkMenuButton
|
||
*
|
||
* Gets the name of the icon shown in the button.
|
||
*
|
||
* Returns: the name of the icon shown in the button
|
||
*/
|
||
const char *
|
||
gtk_menu_button_get_icon_name (GtkMenuButton *menu_button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_BUTTON (menu_button), NULL);
|
||
|
||
return gtk_button_get_icon_name (GTK_BUTTON (menu_button->button));
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_set_label:
|
||
* @menu_button: a #GtkMenuButton
|
||
* @label: the label
|
||
*
|
||
* Sets the label to show inside the menu button.
|
||
*/
|
||
void
|
||
gtk_menu_button_set_label (GtkMenuButton *menu_button,
|
||
const char *label)
|
||
{
|
||
GtkWidget *box;
|
||
GtkWidget *label_widget;
|
||
GtkWidget *arrow;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
|
||
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
|
||
label_widget = gtk_label_new (label);
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
gtk_label_set_xalign (GTK_LABEL (label_widget), 0);
|
||
gtk_label_set_use_underline (GTK_LABEL (label_widget),
|
||
gtk_button_get_use_underline (GTK_BUTTON (menu_button->button)));
|
||
gtk_widget_set_hexpand (label_widget, TRUE);
|
||
gtk_widget_set_halign (label_widget, GTK_ALIGN_CENTER);
|
||
arrow = gtk_image_new ();
|
||
menu_button->arrow_widget = arrow;
|
||
set_arrow_type (GTK_IMAGE (arrow), menu_button->arrow_type, menu_button->arrow_type != GTK_ARROW_NONE);
|
||
gtk_box_append (GTK_BOX (box), label_widget);
|
||
gtk_box_append (GTK_BOX (box), arrow);
|
||
gtk_button_set_child (GTK_BUTTON (menu_button->button), box);
|
||
menu_button->label_widget = label_widget;
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (menu_button), menu_button_props[PROP_LABEL]);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_get_label:
|
||
* @menu_button: a #GtkMenuButton
|
||
*
|
||
* Gets the label shown in the button
|
||
*
|
||
* Returns: the label shown in the button
|
||
*/
|
||
const char *
|
||
gtk_menu_button_get_label (GtkMenuButton *menu_button)
|
||
{
|
||
GtkWidget *child;
|
||
|
||
g_return_val_if_fail (GTK_IS_MENU_BUTTON (menu_button), NULL);
|
||
|
||
child = gtk_button_get_child (GTK_BUTTON (menu_button->button));
|
||
if (GTK_IS_BOX (child))
|
||
{
|
||
child = gtk_widget_get_first_child (child);
|
||
return gtk_label_get_label (GTK_LABEL (child));
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_set_has_frame:
|
||
* @menu_button: a #GtkMenuButton
|
||
* @has_frame: whether the button should have a visible frame
|
||
*
|
||
* Sets the style of the button.
|
||
*/
|
||
void
|
||
gtk_menu_button_set_has_frame (GtkMenuButton *menu_button,
|
||
gboolean has_frame)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
|
||
if (gtk_button_get_has_frame (GTK_BUTTON (menu_button->button)) == has_frame)
|
||
return;
|
||
|
||
gtk_button_set_has_frame (GTK_BUTTON (menu_button->button), has_frame);
|
||
g_object_notify_by_pspec (G_OBJECT (menu_button), menu_button_props[PROP_HAS_FRAME]);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_get_has_frame:
|
||
* @menu_button: a #GtkMenuButton
|
||
*
|
||
* Returns whether the button has a frame.
|
||
*
|
||
* Returns: %TRUE if the button has a frame
|
||
*/
|
||
gboolean
|
||
gtk_menu_button_get_has_frame (GtkMenuButton *menu_button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_BUTTON (menu_button), TRUE);
|
||
|
||
return gtk_button_get_has_frame (GTK_BUTTON (menu_button->button));
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_popup:
|
||
* @menu_button: a #GtkMenuButton
|
||
*
|
||
* Pop up the menu.
|
||
*/
|
||
void
|
||
gtk_menu_button_popup (GtkMenuButton *menu_button)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
|
||
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (menu_button->button), TRUE);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_popdown:
|
||
* @menu_button: a #GtkMenuButton
|
||
*
|
||
* Dismiss the menu.
|
||
*/
|
||
void
|
||
gtk_menu_button_popdown (GtkMenuButton *menu_button)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
|
||
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (menu_button->button), FALSE);
|
||
}
|
||
|
||
void
|
||
gtk_menu_button_add_child (GtkMenuButton *menu_button,
|
||
GtkWidget *new_child)
|
||
{
|
||
gtk_button_set_child (GTK_BUTTON (menu_button->button), new_child);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_set_create_popup_func:
|
||
* @menu_button: a #GtkMenuButton
|
||
* @func: (nullable): function to call when a popuop is about to
|
||
* be shown, but none has been provided via other means, or %NULL
|
||
* to reset to default behavior.
|
||
* @user_data: (closure): user data to pass to @func.
|
||
* @destroy_notify: (nullable): destroy notify for @user_data
|
||
*
|
||
* Sets @func to be called when a popup is about to be shown.
|
||
* @func should use one of
|
||
*
|
||
* - gtk_menu_button_set_popover()
|
||
* - gtk_menu_button_set_menu_model()
|
||
*
|
||
* to set a popup for @menu_button.
|
||
* If @func is non-%NULL, @menu_button will always be sensitive.
|
||
*
|
||
* Using this function will not reset the menu widget attached to @menu_button.
|
||
* Instead, this can be done manually in @func.
|
||
*/
|
||
void
|
||
gtk_menu_button_set_create_popup_func (GtkMenuButton *menu_button,
|
||
GtkMenuButtonCreatePopupFunc func,
|
||
gpointer user_data,
|
||
GDestroyNotify destroy_notify)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
|
||
if (menu_button->create_popup_destroy_notify)
|
||
menu_button->create_popup_destroy_notify (menu_button->create_popup_user_data);
|
||
|
||
menu_button->create_popup_func = func;
|
||
menu_button->create_popup_user_data = user_data;
|
||
menu_button->create_popup_destroy_notify = destroy_notify;
|
||
|
||
update_sensitivity (menu_button);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_set_use_underline:
|
||
* @menu_button: a #GtkMenuButton
|
||
* @use_underline: %TRUE if underlines in the text indicate mnemonics
|
||
*
|
||
* If true, an underline in the text indicates the next character should be
|
||
* used for the mnemonic accelerator key.
|
||
*/
|
||
void
|
||
gtk_menu_button_set_use_underline (GtkMenuButton *menu_button,
|
||
gboolean use_underline)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU_BUTTON (menu_button));
|
||
|
||
if (gtk_button_get_use_underline (GTK_BUTTON (menu_button->button)) == use_underline)
|
||
return;
|
||
|
||
gtk_button_set_use_underline (GTK_BUTTON (menu_button->button), use_underline);
|
||
if (menu_button->label_widget)
|
||
gtk_label_set_use_underline (GTK_LABEL (menu_button->label_widget), use_underline);
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (menu_button), menu_button_props[PROP_USE_UNDERLINE]);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_button_get_use_underline:
|
||
* @menu_button: a #GtkMenuButton
|
||
*
|
||
* Returns whether an embedded underline in the text indicates a
|
||
* mnemonic. See gtk_menu_button_set_use_underline().
|
||
*
|
||
* Returns: %TRUE whether an embedded underline in the text indicates
|
||
* the mnemonic accelerator keys.
|
||
*/
|
||
gboolean
|
||
gtk_menu_button_get_use_underline (GtkMenuButton *menu_button)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_BUTTON (menu_button), FALSE);
|
||
|
||
return gtk_button_get_use_underline (GTK_BUTTON (menu_button->button));
|
||
}
|