This is a GtkGesture done to deal with stylus events from drawing tablets. Those have a special number of characteristics that extend a regular pointer, so it makes sense to wrap that.
		
			
				
	
	
		
			52 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			52 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* GTK - The GIMP Toolkit
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 * Copyright (C) 2017-2018, 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_GESTURE_STYLUS_PRIVATE_H__
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#define __GTK_GESTURE_STYLUS_PRIVATE_H__
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#include "gtkgesturesingleprivate.h"
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#include "gtkgesturestylus.h"
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struct _GtkGestureStylus
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{
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  GtkGestureSingle parent_instance;
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};
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struct _GtkGestureStylusClass
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{
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  GtkGestureSingleClass parent_class;
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  void (*proximity) (GtkGestureStylus *gesture,
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                     gdouble           x,
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                     gdouble           y);
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  void (*down)      (GtkGestureStylus *gesture,
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                     gdouble           x,
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                     gdouble           y);
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  void (*motion)    (GtkGestureStylus *gesture,
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                     gdouble           x,
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                     gdouble           y);
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  void (*up)        (GtkGestureStylus *gesture,
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                     gdouble           x,
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                     gdouble           y);
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  /*< private >*/
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  gpointer padding[10];
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};
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#endif /* __GTK_GESTURE_STYLUS_PRIVATE_H__ */
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