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2007-08-13 Matthew Allum <mallum@openedhand.com>

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* clutter/clutter-actor.c:
        * clutter/clutter-actor.h:
        * clutter/clutter-event.c:
        * clutter/clutter-event.h:
        * clutter/clutter-main.c:
        * clutter/clutter-main.h:
        * clutter/clutter-private.h:
        * clutter/clutter-stage.c:
        * clutter/clutter-stage.h:
        * clutter/clutter-types.h:
        Initial implementation of actors emmitting event signals (423);
        - Actors set_reactive() to receive mouse events.
          (call clutter_enable_motion_events() for per action motion events)
        - clutter_stage_set_key_focus () to direct key events.
        - Events bubble up to parents (ending at stage)
          (original source identified by clutter_event_get_source())
        TODO:
        - enter/leave notifys for actors.
        - stage specific events - fullscreen
        - grabs

        * tests/test-events.c:
        Extend a little to use new API

        * clutter/cogl/gl/cogl.c:
        * clutter/glx/clutter-backend-glx.c:
        Move get_proc_address into cogl and out of backend.
        (shaders will need it)

        * clutter/clutter-group.c: (clutter_group_real_lower):
        Fix a minor compile warning.

        * TODO:
        Sync up.
This commit is contained in:
Matthew Allum
2007-08-13 20:48:01 +00:00
parent e726ef9a2b
commit 8ad4dde16b
16 changed files with 913 additions and 398 deletions
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152
clutter/clutter-main.c
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@ -172,6 +172,23 @@ clutter_redraw (void)
CLUTTER_TIMESTAMP (SCHEDULER, "Redraw finish");
}
void
clutter_enable_motion_events (gboolean enable)
{
ClutterMainContext *context = clutter_context_get_default ();
context->motion_events_per_actor = enable;
}
gboolean
clutter_get_motion_events_enabled (void)
{
ClutterMainContext *context = clutter_context_get_default ();
return context->motion_events_per_actor;
}
/**
* clutter_do_event
* @event: a #ClutterEvent.
@ -183,9 +200,10 @@ clutter_redraw (void)
void
clutter_do_event (ClutterEvent *event)
{
ClutterMainContext *context;
ClutterBackend *backend;
ClutterActor *stage;
ClutterMainContext *context;
ClutterBackend *backend;
ClutterActor *stage;
static ClutterActor *motion_last_actor = NULL;
context = clutter_context_get_default ();
backend = context->backend;
@ -195,6 +213,10 @@ clutter_do_event (ClutterEvent *event)
CLUTTER_TIMESTAMP (SCHEDULER, "Event recieved");
/* TODO:
*
*/
switch (event->type)
{
case CLUTTER_NOTHING:
@ -202,27 +224,145 @@ clutter_do_event (ClutterEvent *event)
case CLUTTER_DESTROY_NOTIFY:
case CLUTTER_DELETE:
/* FIXME: handle delete working in stage */
if (clutter_stage_event (CLUTTER_STAGE (stage), event))
clutter_main_quit ();
break;
case CLUTTER_KEY_PRESS:
case CLUTTER_KEY_RELEASE:
{
ClutterActor *actor = NULL;
actor = clutter_stage_get_key_focus (CLUTTER_STAGE(stage));
g_return_if_fail (actor != NULL);
/* FIXME: should we ref ? */
event->key.source = actor;
/* bubble up */
do
{
clutter_actor_event (actor, event);
actor = clutter_actor_get_parent(actor);
}
while (actor != NULL);
}
break;
case CLUTTER_MOTION:
if (context->motion_events_per_actor == FALSE)
{
/* Only stage gets motion events */
event->motion.source = stage;
clutter_actor_event (stage, event);
break;
}
case CLUTTER_BUTTON_PRESS:
case CLUTTER_2BUTTON_PRESS:
case CLUTTER_3BUTTON_PRESS:
case CLUTTER_BUTTON_RELEASE:
case CLUTTER_SCROLL:
clutter_stage_event (CLUTTER_STAGE (stage), event);
break;
{
ClutterActor *actor;
gint x,y;
clutter_event_get_coords (event, &x, &y);
/* Map the event to a reactive actor */
actor = _clutter_do_pick (CLUTTER_STAGE (stage),
x, y,
CLUTTER_PICK_REACTIVE);
CLUTTER_NOTE (EVENT, "Reactive event recieved at %ix%i - actor: %p",
x, y, actor);
if (event->type == CLUTTER_SCROLL)
event->scroll.source = actor;
else
event->button.source = actor;
/* Motion enter leave events */
if (event->type == CLUTTER_MOTION)
{
if (motion_last_actor != actor)
{
if (motion_last_actor)
; /* FIXME: leave_notify to motion_last_actor */
if (actor)
; /* FIXME: Enter notify to actor */
}
motion_last_actor = actor;
}
/* Send the event to the actor and all parents always the
* stage.
*
* FIXME: for an optimisation should check if there are
* actually any reactive actors and avoid the pick all togeather
* (signalling just the stage). Should be big help for gles.
*/
while (actor)
{
if (clutter_actor_is_reactive (actor)
|| clutter_actor_get_parent(actor) == NULL /* STAGE */ )
{
CLUTTER_NOTE (EVENT, "forwarding event to reactive actor");
clutter_actor_event (actor, event);
}
actor = clutter_actor_get_parent(actor);
}
}
break;
case CLUTTER_STAGE_STATE:
/* FIXME: fullscreen / focus / mouse - forward to stage */
break;
case CLUTTER_CLIENT_MESSAGE:
break;
}
}
ClutterActor*
_clutter_do_pick (ClutterStage *stage,
gint x,
gint y,
ClutterPickMode mode)
{
ClutterMainContext *context;
guchar pixel[4];
GLint viewport[4];
ClutterColor white = { 0xff, 0xff, 0xff, 0xff };
guint32 id;
gint r,g,b;
context = clutter_context_get_default ();
cogl_paint_init (&white);
cogl_enable (0);
/* Render the entire scence in pick mode - just single colored silhouette's
* are drawn offscreen (as we never swap buffers)
*/
context->pick_mode = mode;
clutter_actor_paint (CLUTTER_ACTOR (stage));
context->pick_mode = CLUTTER_PICK_NONE;
/* Calls should work under both GL and GLES, note GLES needs RGBA */
glGetIntegerv(GL_VIEWPORT, viewport);
glReadPixels(x, viewport[3] - y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel);
if (pixel[0] == 0xff && pixel[1] == 0xff && pixel[2] == 0xff)
return CLUTTER_ACTOR(stage);
cogl_get_bitmasks (&r, &g, &b, NULL);
/* Decode color back into an ID, taking into account fb depth */
id = pixel[2]>>(8-b) | pixel[1]<<b>>(8-g) | pixel[0]<<(g+b)>>(8-r);
return clutter_container_find_child_by_id (CLUTTER_CONTAINER (stage), id);
}
/**
* clutter_main_quit:
*