sugarlabs/sugar-toolkit-gtk3
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

swipe: Allow setting allowed directions as a set of flags

Browse Source 
The allowed swipe directions can be specified now at construct time,
so the swipe-ended signal is only emitted for those directions.

Signed-off-by: Carlos Garnacho <carlos@lanedo.com>
Acked-by: Simon Schampijer <simon@laptop.org>
This commit is contained in:
Carlos Garnacho 2012-10-05 14:31:28 +02:00 committed by Simon Schampijer
parent 2a15fbc0f2
commit fe0022cd8f
2 changed files with 81 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

77
src/sugar3/event-controller/sugar-swipe-controller.c
View File

@ -29,6 +29,10 @@
typedef struct _SugarSwipeControllerPriv SugarSwipeControllerPriv;
typedef struct _SugarEventData SugarEventData;
enum {
PROP_DIRECTIONS = 1
};
enum {
SWIPE_ENDED,
LAST_SIGNAL
@ -48,6 +52,7 @@ struct _SugarSwipeControllerPriv
GArray *event_data;
guint swiping : 1;
guint swiped : 1;
guint directions : 4;
};
static guint signals[LAST_SIGNAL] = { 0 };
@ -67,6 +72,42 @@ sugar_swipe_controller_init (SugarSwipeController *controller)
priv->event_data = g_array_new (FALSE, FALSE, sizeof (SugarEventData));
}
static void
sugar_swipe_controller_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
SugarSwipeControllerPriv *priv = SUGAR_SWIPE_CONTROLLER (object)->_priv;
switch (prop_id)
{
case PROP_DIRECTIONS:
g_value_set_flags (value, priv->directions);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
sugar_swipe_controller_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
SugarSwipeControllerPriv *priv = SUGAR_SWIPE_CONTROLLER (object)->_priv;
switch (prop_id)
{
case PROP_DIRECTIONS:
priv->directions = g_value_get_flags (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
sugar_swipe_controller_finalize (GObject *object)
{
@ -172,6 +213,7 @@ _sugar_swipe_controller_get_event_direction (SugarSwipeController *controller,
{
SugarSwipeControllerPriv *priv;
SugarEventData *last, *check;
SugarSwipeDirection dir;
gint i;
priv = controller->_priv;
@ -190,7 +232,17 @@ _sugar_swipe_controller_get_event_direction (SugarSwipeController *controller,
break;
}
return _sugar_swipe_controller_get_direction (check, last, direction);
if (!_sugar_swipe_controller_get_direction (check, last, &dir))
return FALSE;
/* Check whether the direction is allowed */
if ((priv->directions & (1 << dir)) == 0)
return FALSE;
if (direction)
*direction = dir;
return TRUE;
}
static void
@ -201,12 +253,16 @@ _sugar_swipe_controller_check_emit (SugarSwipeController *controller)
priv = controller->_priv;
if (!priv->swiping)
return;
if (_sugar_swipe_controller_get_event_direction (controller, &direction))
{
priv->swiped = TRUE;
g_signal_emit (controller, signals[SWIPE_ENDED], 0, direction);
g_signal_emit_by_name (G_OBJECT (controller), "ended");
}
g_signal_emit_by_name (G_OBJECT (controller), "ended");
}
static gboolean
@ -314,6 +370,8 @@ sugar_swipe_controller_class_init (SugarSwipeControllerClass *klass)
GObjectClass *object_class;
object_class = G_OBJECT_CLASS (klass);
object_class->get_property = sugar_swipe_controller_get_property;
object_class->set_property = sugar_swipe_controller_set_property;
object_class->finalize = sugar_swipe_controller_finalize;
controller_class = SUGAR_EVENT_CONTROLLER_CLASS (klass);
@ -321,6 +379,15 @@ sugar_swipe_controller_class_init (SugarSwipeControllerClass *klass)
controller_class->get_state = sugar_swipe_controller_get_state;
controller_class->reset = sugar_swipe_controller_reset;
g_object_class_install_property (object_class,
PROP_DIRECTIONS,
g_param_spec_flags ("directions",
"Directions",
"Allowed swipe directions",
SUGAR_TYPE_SWIPE_DIRECTION_FLAGS, 0,
G_PARAM_READABLE |
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY));
signals[SWIPE_ENDED] =
g_signal_new ("swipe-ended",
SUGAR_TYPE_SWIPE_CONTROLLER,
@ -335,7 +402,9 @@ sugar_swipe_controller_class_init (SugarSwipeControllerClass *klass)
}
SugarEventController *
sugar_swipe_controller_new (void)
sugar_swipe_controller_new (SugarSwipeDirectionFlags directions)
{
return g_object_new (SUGAR_TYPE_SWIPE_CONTROLLER, NULL);
return g_object_new (SUGAR_TYPE_SWIPE_CONTROLLER,
"directions", directions,
NULL);
}

9
src/sugar3/event-controller/sugar-swipe-controller.h
View File

@ -48,6 +48,13 @@ typedef enum {
SUGAR_SWIPE_DIRECTION_DOWN
} SugarSwipeDirection;
typedef enum {
SUGAR_SWIPE_DIRECTION_FLAG_LEFT = 1 << SUGAR_SWIPE_DIRECTION_LEFT,
SUGAR_SWIPE_DIRECTION_FLAG_RIGHT = 1 << SUGAR_SWIPE_DIRECTION_RIGHT,
SUGAR_SWIPE_DIRECTION_FLAG_UP = 1 << SUGAR_SWIPE_DIRECTION_UP,
SUGAR_SWIPE_DIRECTION_FLAG_DOWN = 1 << SUGAR_SWIPE_DIRECTION_DOWN,
} SugarSwipeDirectionFlags;
struct _SugarSwipeController
{
SugarEventController parent_instance;
@ -63,7 +70,7 @@ struct _SugarSwipeControllerClass
};
GType sugar_swipe_controller_get_type (void) G_GNUC_CONST;
SugarEventController * sugar_swipe_controller_new (void);
SugarEventController * sugar_swipe_controller_new (SugarSwipeDirectionFlags directions);
G_END_DECLS