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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpmotionbuffer.h
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef __GIMP_MOTION_BUFFER_H__
#define __GIMP_MOTION_BUFFER_H__
#include "core/gimpobject.h"
#define GIMP_TYPE_MOTION_BUFFER (gimp_motion_buffer_get_type ())
#define GIMP_MOTION_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_MOTION_BUFFER, GimpMotionBuffer))
#define GIMP_MOTION_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_MOTION_BUFFER, GimpMotionBufferClass))
#define GIMP_IS_MOTION_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_MOTION_BUFFER))
#define GIMP_IS_MOTION_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_MOTION_BUFFER))
#define GIMP_MOTION_BUFFER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_MOTION_BUFFER, GimpMotionBufferClass))
typedef struct _GimpMotionBufferClass GimpMotionBufferClass;
struct _GimpMotionBuffer
{
GimpObject parent_instance;
guint32 last_read_motion_time;
guint32 last_motion_time; /* previous time of a forwarded motion event */
gdouble last_motion_delta_time;
gdouble last_motion_delta_x;
gdouble last_motion_delta_y;
gdouble last_motion_distance;
GimpCoords last_coords; /* last motion event */
GArray *event_history;
GArray *event_queue;
gboolean event_delay; /* TRUE if there's an unsent event in
* the history buffer
*/
gint event_delay_timeout;
GdkModifierType last_active_state;
};
struct _GimpMotionBufferClass
{
GimpObjectClass parent_class;
void (* stroke) (GimpMotionBuffer *buffer,
const GimpCoords *coords,
guint32 time,
GdkModifierType state);
void (* hover) (GimpMotionBuffer *buffer,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity);
};
GType gimp_motion_buffer_get_type (void) G_GNUC_CONST;
GimpMotionBuffer * gimp_motion_buffer_new (void);
void gimp_motion_buffer_begin_stroke (GimpMotionBuffer *buffer,
guint32 time,
GimpCoords *last_motion);
void gimp_motion_buffer_end_stroke (GimpMotionBuffer *buffer);
gboolean gimp_motion_buffer_motion_event (GimpMotionBuffer *buffer,
GimpCoords *coords,
guint32 time,
gboolean event_fill);
guint32 gimp_motion_buffer_get_last_motion_time (GimpMotionBuffer *buffer);
void gimp_motion_buffer_request_stroke (GimpMotionBuffer *buffer,
GdkModifierType state,
guint32 time);
void gimp_motion_buffer_request_hover (GimpMotionBuffer *buffer,
GdkModifierType state,
gboolean proximity);
#endif /* __GIMP_MOTION_BUFFER_H__ */
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