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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
#ifndef __META_BARRIER_H__
#define __META_BARRIER_H__
#include <glib-object.h>
#include <meta/display.h>
G_BEGIN_DECLS
#define META_TYPE_BARRIER (meta_barrier_get_type ())
#define META_BARRIER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_BARRIER, MetaBarrier))
#define META_BARRIER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_BARRIER, MetaBarrierClass))
#define META_IS_BARRIER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_BARRIER))
#define META_IS_BARRIER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_BARRIER))
#define META_BARRIER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_BARRIER, MetaBarrierClass))
typedef struct _MetaBarrier MetaBarrier;
typedef struct _MetaBarrierClass MetaBarrierClass;
typedef struct _MetaBarrierPrivate MetaBarrierPrivate;
typedef struct _MetaBarrierEvent MetaBarrierEvent;
/**
* MetaBarrier:
*
* The <structname>MetaBarrier</structname> structure contains
* only private data and should be accessed using the provided API
*
**/
struct _MetaBarrier
{
GObject parent;
MetaBarrierPrivate *priv;
};
/**
* MetaBarrierClass:
*
* The <structname>MetaBarrierClass</structname> structure contains only
* private data.
*/
struct _MetaBarrierClass
{
/*< private >*/
GObjectClass parent_class;
};
GType meta_barrier_get_type (void) G_GNUC_CONST;
gboolean meta_barrier_is_active (MetaBarrier *barrier);
void meta_barrier_destroy (MetaBarrier *barrier);
void meta_barrier_release (MetaBarrier *barrier,
MetaBarrierEvent *event);
/**
* MetaBarrierDirection:
* @META_BARRIER_DIRECTION_POSITIVE_X: Positive direction in the X axis
* @META_BARRIER_DIRECTION_POSITIVE_Y: Positive direction in the Y axis
* @META_BARRIER_DIRECTION_NEGATIVE_X: Negative direction in the X axis
* @META_BARRIER_DIRECTION_NEGATIVE_Y: Negative direction in the Y axis
*/
/* Keep in sync with XFixes */
typedef enum {
META_BARRIER_DIRECTION_POSITIVE_X = 1 << 0,
META_BARRIER_DIRECTION_POSITIVE_Y = 1 << 1,
META_BARRIER_DIRECTION_NEGATIVE_X = 1 << 2,
META_BARRIER_DIRECTION_NEGATIVE_Y = 1 << 3,
} MetaBarrierDirection;
/**
* MetaBarrierEvent:
* @event_id: A unique integer ID identifying a
* consecutive series of motions at or along the barrier
* @time: Server time, in milliseconds
* @dt: Server time, in milliseconds, since the last event
* sent for this barrier
* @x: The cursor X position in screen coordinates
* @y: The cursor Y position in screen coordinates.
* @dx: If the cursor hadn't been constrained, the delta
* of X movement past the barrier, in screen coordinates
* @dy: If the cursor hadn't been constrained, the delta
* of X movement past the barrier, in screen coordinates
* @released: A boolean flag, %TRUE if this event generated
* by the pointer leaving the barrier as a result of a client
* calling meta_barrier_release() (will be set only for
* MetaBarrier::leave signals)
* @grabbed: A boolean flag, %TRUE if the pointer was grabbed
* at the time this event was sent
*/
struct _MetaBarrierEvent {
/* < private > */
volatile guint ref_count;
/* < public > */
int event_id;
int dt;
guint32 time;
double x;
double y;
double dx;
double dy;
gboolean released;
gboolean grabbed;
};
#define META_TYPE_BARRIER_EVENT (meta_barrier_event_get_type ())
GType meta_barrier_event_get_type (void) G_GNUC_CONST;
G_END_DECLS
#endif /* __META_BARRIER_H__ */
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