This GdkEventController is a helper object to handle pad events, it allows setting a mapping to action names, to be triggered in the given action group. In order to help on places where advanced mapping/configurability of pad features is not desirable, this controller also allows passing a NULL pad device, meaning it will listen on all pads, and/or passing -1 on mode/index, so an action applies to all modes/features (eg. strips/rings). https://bugzilla.gnome.org/show_bug.cgi?id=770026
		
			
				
	
	
		
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			100 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* GTK - The GIMP Toolkit
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 * Copyright (C) 2016, Red Hat, Inc.
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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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 * Author(s): Carlos Garnacho <carlosg@gnome.org>
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 */
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#ifndef __GTK_PAD_CONTROLLER_H__
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#define __GTK_PAD_CONTROLLER_H__
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#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
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#error "Only <gtk/gtk.h> can be included directly."
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#endif
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#include <gdk/gdk.h>
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#include <gtk/gtkeventcontroller.h>
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G_BEGIN_DECLS
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#define GTK_TYPE_PAD_CONTROLLER         (gtk_pad_controller_get_type ())
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#define GTK_PAD_CONTROLLER(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), GTK_TYPE_PAD_CONTROLLER, GtkPadController))
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#define GTK_PAD_CONTROLLER_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST ((k), GTK_TYPE_PAD_CONTROLLER, GtkPadControllerClass))
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#define GTK_IS_PAD_CONTROLLER(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), GTK_TYPE_PAD_CONTROLLER))
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#define GTK_IS_PAD_CONTROLLER_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), GTK_TYPE_PAD_CONTROLLER))
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#define GTK_PAD_CONTROLLER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GTK_TYPE_PAD_CONTROLLER, GtkPadControllerClass))
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typedef struct _GtkPadController GtkPadController;
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typedef struct _GtkPadControllerClass GtkPadControllerClass;
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typedef struct _GtkPadActionEntry GtkPadActionEntry;
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/**
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 * GtkPadActionType:
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 * @GTK_PAD_ACTION_BUTTON: Action is triggered by a pad button
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 * @GTK_PAD_ACTION_RING: Action is triggered by a pad ring
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 * @GTK_PAD_ACTION_STRIP: Action is triggered by a pad strip
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 *
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 * The type of a pad action.
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 */
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typedef enum {
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  GTK_PAD_ACTION_BUTTON,
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  GTK_PAD_ACTION_RING,
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  GTK_PAD_ACTION_STRIP
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} GtkPadActionType;
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/**
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 * GtkPadActionEntry:
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 * @type: the type of pad feature that will trigger this action entry.
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 * @index: the 0-indexed button/ring/strip number that will trigger this action
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 *   entry.
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 * @mode: the mode that will trigger this action entry, or -1 for all modes.
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 * @label: Human readable description of this action entry, this string should
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 *   be deemed user-visible.
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 * @action_name: action name that will be activated in the #GActionGroup.
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 *
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 * Struct defining a pad action entry.
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 */
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struct _GtkPadActionEntry {
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  GtkPadActionType type;
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  gint index;
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  gint mode;
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  gchar *label;
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  gchar *action_name;
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};
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GDK_AVAILABLE_IN_3_22
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GType gtk_pad_controller_get_type           (void) G_GNUC_CONST;
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GDK_AVAILABLE_IN_3_22
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GtkPadController *gtk_pad_controller_new    (GtkWindow        *window,
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                                             GActionGroup     *group,
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                                             GdkDevice        *pad);
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GDK_AVAILABLE_IN_3_22
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void  gtk_pad_controller_set_action_entries (GtkPadController        *controller,
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                                             const GtkPadActionEntry *entries,
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                                             gint                     n_entries);
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GDK_AVAILABLE_IN_3_22
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void  gtk_pad_controller_set_action         (GtkPadController *controller,
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                                             GtkPadActionType  type,
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                                             gint              index,
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                                             gint              mode,
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                                             const gchar      *label,
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                                             const gchar      *action_name);
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G_END_DECLS
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#endif /* __GTK_PAD_CONTROLLER_H__ */
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