1 /* GTK - The GIMP Toolkit 2 * Copyright (C) 2017, Red Hat, Inc. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with this library. If not, see <http://www.gnu.org/licenses/>. 16 * 17 * Author(s): Carlos Garnacho <carlosg@gnome.org> 18 */ 19 20 #ifndef __GTK_EVENT_CONTROLLER_SCROLL_H__ 21 #define __GTK_EVENT_CONTROLLER_SCROLL_H__ 22 23 #if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION) 24 #error "Only <gtk/gtk.h> can be included directly." 25 #endif 26 27 #include <gdk/gdk.h> 28 #include <gtk/gtkeventcontroller.h> 29 30 G_BEGIN_DECLS 31 32 #define GTK_TYPE_EVENT_CONTROLLER_SCROLL (gtk_event_controller_scroll_get_type ()) 33 #define GTK_EVENT_CONTROLLER_SCROLL(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GTK_TYPE_EVENT_CONTROLLER_SCROLL, GtkEventControllerScroll)) 34 #define GTK_EVENT_CONTROLLER_SCROLL_CLASS(k) (G_TYPE_CHECK_CLASS_CAST ((k), GTK_TYPE_EVENT_CONTROLLER_SCROLL, GtkEventControllerScrollClass)) 35 #define GTK_IS_EVENT_CONTROLLER_SCROLL(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GTK_TYPE_EVENT_CONTROLLER_SCROLL)) 36 #define GTK_IS_EVENT_CONTROLLER_SCROLL_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), GTK_TYPE_EVENT_CONTROLLER_SCROLL)) 37 #define GTK_EVENT_CONTROLLER_SCROLL_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GTK_TYPE_EVENT_CONTROLLER_SCROLL, GtkEventControllerScrollClass)) 38 39 typedef struct _GtkEventControllerScroll GtkEventControllerScroll; 40 typedef struct _GtkEventControllerScrollClass GtkEventControllerScrollClass; 41 42 /** 43 * GtkEventControllerScrollFlags: 44 * @GTK_EVENT_CONTROLLER_SCROLL_NONE: Don't emit scroll. 45 * @GTK_EVENT_CONTROLLER_SCROLL_VERTICAL: Emit scroll with vertical deltas. 46 * @GTK_EVENT_CONTROLLER_SCROLL_HORIZONTAL: Emit scroll with horizontal deltas. 47 * @GTK_EVENT_CONTROLLER_SCROLL_DISCRETE: Only emit deltas that are multiples of 1. 48 * @GTK_EVENT_CONTROLLER_SCROLL_KINETIC: Emit #GtkEventControllerScroll::decelerate 49 * after continuous scroll finishes. 50 * @GTK_EVENT_CONTROLLER_SCROLL_BOTH_AXES: Emit scroll on both axes. 51 * 52 * Describes the behavior of a #GtkEventControllerScroll. 53 * 54 * Since: 3.24 55 **/ 56 typedef enum { 57 GTK_EVENT_CONTROLLER_SCROLL_NONE = 0, 58 GTK_EVENT_CONTROLLER_SCROLL_VERTICAL = 1 << 0, 59 GTK_EVENT_CONTROLLER_SCROLL_HORIZONTAL = 1 << 1, 60 GTK_EVENT_CONTROLLER_SCROLL_DISCRETE = 1 << 2, 61 GTK_EVENT_CONTROLLER_SCROLL_KINETIC = 1 << 3, 62 GTK_EVENT_CONTROLLER_SCROLL_BOTH_AXES = (GTK_EVENT_CONTROLLER_SCROLL_VERTICAL | GTK_EVENT_CONTROLLER_SCROLL_HORIZONTAL), 63 } GtkEventControllerScrollFlags; 64 65 GDK_AVAILABLE_IN_3_24 66 GType gtk_event_controller_scroll_get_type (void) G_GNUC_CONST; 67 68 GDK_AVAILABLE_IN_3_24 69 GtkEventController *gtk_event_controller_scroll_new (GtkWidget *widget, 70 GtkEventControllerScrollFlags flags); 71 GDK_AVAILABLE_IN_3_24 72 void gtk_event_controller_scroll_set_flags (GtkEventControllerScroll *controller, 73 GtkEventControllerScrollFlags flags); 74 GDK_AVAILABLE_IN_3_24 75 GtkEventControllerScrollFlags 76 gtk_event_controller_scroll_get_flags (GtkEventControllerScroll *controller); 77 78 G_END_DECLS 79 80 #endif /* __GTK_EVENT_CONTROLLER_SCROLL_H__ */ 81