8eb71af23d
We need debugging notes, to see what's happening when handling events. We need to queue a (clipped) redraw when receiving a GDK_EXPOSE event. We need to check the device (both master and source) of the event using the GdkEvent API, and pass them to the ClutterEvent using the corresponding Clutter API.
347 lines
11 KiB
C
347 lines
11 KiB
C
/* Clutter.
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* An OpenGL based 'interactive canvas' library.
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*
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* Copyright (C) 2006, 2007, 2008 OpenedHand Ltd
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* Copyright (C) 2009, 2010 Intel Corp.
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* 2011 Giovanni Campagna <scampa.giovanni@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*
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* Authored by:
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* Matthew Allum <mallum@openedhand.com>
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* Emmanuele Bassi <ebassi@linux.intel.com>
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*/
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#include "config.h"
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#include "clutter-gdk.h"
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#include "clutter-backend-gdk.h"
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#include "clutter-device-manager-gdk.h"
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#include "clutter-actor-private.h"
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#include "clutter-backend-private.h"
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#include "clutter-debug.h"
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#include "clutter-event-private.h"
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#include "clutter-main.h"
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#include "clutter-paint-volume-private.h"
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#include "clutter-stage-private.h"
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#include <string.h>
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#include <glib.h>
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static void
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gdk_event_handler (GdkEvent *event,
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gpointer user_data)
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{
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clutter_gdk_handle_event (event);
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}
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void
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_clutter_backend_gdk_events_init (ClutterBackend *backend)
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{
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gdk_event_handler_set (gdk_event_handler, NULL, NULL);
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CLUTTER_NOTE (EVENT, "GDK event handler set");
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}
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void
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_clutter_backend_gdk_events_uninit (ClutterBackend *backend)
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{
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gdk_event_handler_set (NULL, NULL, NULL);
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}
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/**
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* clutter_gdk_handle_event:
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* @event: a #GdkEvent
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*
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* This function processes a single GDK event; it can be used to hook
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* into external event processing
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*
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* Return value: #GdkFilterReturn. %GDK_FILTER_REMOVE indicates that
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* Clutter has internally handled the event and the caller should do
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* no further processing. %GDK_FILTER_CONTINUE indicates that Clutter
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* is either not interested in the event, or has used the event to
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* update internal state without taking any exclusive action.
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* %GDK_FILTER_TRANSLATE will not occur.
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*
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*/
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GdkFilterReturn
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clutter_gdk_handle_event (GdkEvent *gdk_event)
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{
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ClutterDeviceManager *device_manager;
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ClutterBackendGdk *backend_gdk;
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ClutterBackend *backend;
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ClutterStage *stage = NULL;
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ClutterEvent *event = NULL;
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gint spin = 0;
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GdkFilterReturn result = GDK_FILTER_CONTINUE;
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ClutterInputDevice *device, *source_device;
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GdkDevice *gdk_device;
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backend = clutter_get_default_backend ();
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if (!CLUTTER_IS_BACKEND_GDK (backend))
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return GDK_FILTER_CONTINUE;
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if (gdk_event->any.window == NULL)
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return GDK_FILTER_CONTINUE;
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backend_gdk = CLUTTER_BACKEND_GDK (backend);
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stage = clutter_gdk_get_stage_from_window (gdk_event->any.window);
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device_manager = clutter_device_manager_get_default ();
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gdk_device = gdk_event_get_device (gdk_event);
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if (gdk_device != NULL)
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device = _clutter_device_manager_gdk_lookup_device (device_manager,
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gdk_device);
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else
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device = NULL;
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gdk_device = gdk_event_get_source_device (gdk_event);
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if (gdk_device != NULL)
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source_device = _clutter_device_manager_gdk_lookup_device (device_manager,
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gdk_device);
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else
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source_device = NULL;
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if (stage == NULL)
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return GDK_FILTER_CONTINUE;
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clutter_threads_enter ();
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switch (gdk_event->type)
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{
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case GDK_DELETE:
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event = clutter_event_new (CLUTTER_DELETE);
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break;
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case GDK_DESTROY:
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event = clutter_event_new (CLUTTER_DESTROY_NOTIFY);
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break;
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case GDK_EXPOSE:
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{
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ClutterPaintVolume clip;
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ClutterVertex origin;
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CLUTTER_NOTE (EVENT, "Expose for stage '%s' [%p] { %d, %d - %d x %d }",
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_clutter_actor_get_debug_name (CLUTTER_ACTOR (stage)),
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stage,
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gdk_event->expose.area.x,
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gdk_event->expose.area.y,
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gdk_event->expose.area.width,
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gdk_event->expose.area.height);
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origin.x = gdk_event->expose.area.x;
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origin.y = gdk_event->expose.area.y;
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origin.z = 0;
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_clutter_paint_volume_init_static (&clip, CLUTTER_ACTOR (stage));
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clutter_paint_volume_set_origin (&clip, &origin);
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clutter_paint_volume_set_width (&clip, gdk_event->expose.area.width);
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clutter_paint_volume_set_height (&clip, gdk_event->expose.area.height);
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_clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (stage), 0, &clip);
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clutter_paint_volume_free (&clip);
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}
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break;
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case GDK_DAMAGE:
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/* This is handled by cogl */
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break;
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case GDK_MOTION_NOTIFY:
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event = clutter_event_new (CLUTTER_MOTION);
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event->motion.time = gdk_event->motion.time;
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event->motion.x = gdk_event->motion.x;
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event->motion.y = gdk_event->motion.y;
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event->motion.axes = NULL;
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/* It's all X in the end, right? */
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event->motion.modifier_state = gdk_event->motion.state;
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clutter_event_set_device (event, device);
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clutter_event_set_source_device (event, source_device);
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CLUTTER_NOTE (EVENT, "Motion notifiy [%.2f, %.2f]",
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event->motion.x,
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event->motion.y);
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break;
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case GDK_BUTTON_PRESS:
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case GDK_BUTTON_RELEASE:
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event = clutter_event_new (gdk_event->type == GDK_BUTTON_PRESS ?
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CLUTTER_BUTTON_PRESS :
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CLUTTER_BUTTON_RELEASE);
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event->button.time = gdk_event->button.time;
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event->button.x = gdk_event->button.x;
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event->button.y = gdk_event->button.y;
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event->button.axes = NULL;
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event->button.modifier_state = gdk_event->button.state;
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event->button.button = gdk_event->button.button;
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event->button.click_count = 1;
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clutter_event_set_device (event, device);
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clutter_event_set_source_device (event, source_device);
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CLUTTER_NOTE (EVENT, "Button %d %s [%.2f, %.2f]",
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event->button.button,
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event->type == CLUTTER_BUTTON_PRESS ? "press" : "release",
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event->button.x,
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event->button.y);
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break;
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case GDK_2BUTTON_PRESS:
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case GDK_3BUTTON_PRESS:
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/* these are handled by clutter-main.c updating click_count */
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break;
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case GDK_KEY_PRESS:
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case GDK_KEY_RELEASE:
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event = clutter_event_new (gdk_event->type == GDK_KEY_PRESS ?
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CLUTTER_KEY_PRESS :
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CLUTTER_KEY_RELEASE);
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event->key.time = gdk_event->key.time;
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event->key.modifier_state = gdk_event->key.state;
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event->key.keyval = gdk_event->key.keyval;
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event->key.hardware_keycode = gdk_event->key.hardware_keycode;
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event->key.unicode_value = g_utf8_get_char (gdk_event->key.string);
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clutter_event_set_device (event, device);
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clutter_event_set_source_device (event, source_device);
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CLUTTER_NOTE (EVENT, "Key %d %s",
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event->key.keyval,
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event->type == CLUTTER_KEY_PRESS ? "press" : "release");
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break;
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case GDK_ENTER_NOTIFY:
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case GDK_LEAVE_NOTIFY:
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event = clutter_event_new (gdk_event->type == GDK_ENTER_NOTIFY ?
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CLUTTER_ENTER :
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CLUTTER_LEAVE);
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event->crossing.source = CLUTTER_ACTOR (stage);
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event->crossing.time = gdk_event_get_time (gdk_event);
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event->crossing.x = gdk_event->crossing.x;
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event->crossing.y = gdk_event->crossing.y;
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/* XXX: no better fallback here? */
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clutter_event_set_device (event, device);
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clutter_event_set_source_device (event, source_device);
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if (gdk_event->type == GDK_ENTER_NOTIFY)
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_clutter_stage_add_device (stage, clutter_event_get_device (event));
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else
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_clutter_stage_remove_device (stage, clutter_event_get_device (event));
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CLUTTER_NOTE (EVENT, "Crossing %s [%.2f, %.2f]",
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event->type == CLUTTER_ENTER ? "enter" : "leave",
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event->crossing.x,
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event->crossing.y);
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break;
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case GDK_FOCUS_CHANGE:
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event = clutter_event_new (CLUTTER_STAGE_STATE);
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event->stage_state.time = 0; /* XXX: there is no timestamp in this GdkEvent */
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event->stage_state.changed_mask = CLUTTER_STAGE_STATE_ACTIVATED;
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event->stage_state.new_state = gdk_event->focus_change.in
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? CLUTTER_STAGE_STATE_ACTIVATED
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: 0;
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break;
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case GDK_CONFIGURE:
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{
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gfloat w, h;
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clutter_actor_get_size (CLUTTER_ACTOR (stage), &w, &h);
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if (w != gdk_event->configure.width ||
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h != gdk_event->configure.height)
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{
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clutter_actor_set_size (CLUTTER_ACTOR (stage),
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gdk_event->configure.width,
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gdk_event->configure.height);
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}
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}
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break;
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case GDK_SCROLL:
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event = clutter_event_new (CLUTTER_SCROLL);
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event->scroll.time = gdk_event->scroll.time;
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event->scroll.x = gdk_event->scroll.x;
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event->scroll.y = gdk_event->scroll.y;
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event->scroll.modifier_state = gdk_event->scroll.state;
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event->scroll.axes = NULL;
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event->scroll.direction = gdk_event->scroll.direction;
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clutter_event_set_device (event, device);
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clutter_event_set_source_device (event, source_device);
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break;
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case GDK_WINDOW_STATE:
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event = clutter_event_new (CLUTTER_STAGE_STATE);
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event->stage_state.changed_mask = 0;
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event->stage_state.new_state = 0;
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if (gdk_event->window_state.changed_mask & GDK_WINDOW_STATE_WITHDRAWN)
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{
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event->stage_state.changed_mask |= CLUTTER_STAGE_STATE_OFFSCREEN;
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event->stage_state.new_state |= (gdk_event->window_state.new_window_state & GDK_WINDOW_STATE_WITHDRAWN)
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? CLUTTER_STAGE_STATE_OFFSCREEN
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: 0;
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}
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if (gdk_event->window_state.changed_mask & GDK_WINDOW_STATE_FULLSCREEN)
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{
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event->stage_state.changed_mask |= CLUTTER_STAGE_STATE_FULLSCREEN;
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event->stage_state.new_state |= (gdk_event->window_state.new_window_state & GDK_WINDOW_STATE_FULLSCREEN)
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? CLUTTER_STAGE_STATE_FULLSCREEN
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: 0;
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}
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break;
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case GDK_SETTING:
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_clutter_backend_gdk_update_setting (backend_gdk, gdk_event->setting.name);
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break;
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default:
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break;
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}
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if (event != NULL)
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{
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event->any.stage = stage;
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if (gdk_event->any.send_event)
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event->any.flags = CLUTTER_EVENT_FLAG_SYNTHETIC;
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_clutter_event_push (event, FALSE);
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spin = 1;
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CLUTTER_NOTE (EVENT, "Translated one event from Gdk");
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/* handle also synthetic enter/leave events */
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if (event->type == CLUTTER_MOTION)
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spin += 2;
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while (spin > 0 && (event = clutter_event_get ()))
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{
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/* forward the event into clutter for emission etc. */
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clutter_do_event (event);
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clutter_event_free (event);
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--spin;
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}
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result = GDK_FILTER_REMOVE;
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}
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clutter_threads_leave ();
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return result;
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}
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