/* gtk-clutter-embed.c: Embeddable ClutterStage * * Copyright (C) 2007 OpenedHand * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not see . * * Authors: * Iain Holmes * Emmanuele Bassi */ /** * SECTION:gtk-clutter-embed * @Title: GtkClutterEmbed * @short_description: Widget for embedding a Clutter scene * @See_Also: #ClutterStage * * #GtkClutterEmbed is a GTK+ widget embedding a #ClutterStage inside * a GTK+ application. * * By using a #GtkClutterEmbed widget is possible to build, show and * interact with a scene built using Clutter inside a GTK+ application. * * Though #GtkClutterEmbed is a #GtkContainer subclass, * it is not a real GTK+ container; #GtkClutterEmbed is required to * implement #GtkContainer in order to embed a #GtkWidget through the * #GtkClutterActor class. Calling gtk_container_add() on a #GtkClutterEmbed * will trigger an assertion. It is strongly advised not to override the * #GtkContainer implementation when subclassing * #GtkClutterEmbed. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include "gtk-clutter-embed.h" #include "gtk-clutter-offscreen.h" #include "gtk-clutter-actor.h" #include #include #if defined(CLUTTER_WINDOWING_X11) #include #endif #if defined(CLUTTER_WINDOWING_GDK) #include #endif #if defined(CLUTTER_WINDOWING_WIN32) #include #endif #if defined(CLUTTER_WINDOWING_WAYLAND) #include #endif #if defined(GDK_WINDOWING_X11) #include #endif #if defined(GDK_WINDOWING_WIN32) #include #endif #if defined(GDK_WINDOWING_WAYLAND) #include #endif #if defined(GDK_WINDOWING_WAYLAND) && defined(CLUTTER_WINDOWING_WAYLAND) #include "subsurface-client-protocol.h" #endif G_DEFINE_TYPE (GtkClutterEmbed, gtk_clutter_embed, GTK_TYPE_CONTAINER); #define GTK_CLUTTER_EMBED_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GTK_CLUTTER_TYPE_EMBED, GtkClutterEmbedPrivate)) static gint num_filter = 0; struct _GtkClutterEmbedPrivate { ClutterActor *stage; GList *children; int n_active_children; guint queue_redraw_id; guint queue_relayout_id; guint geometry_changed : 1; guint use_layout_size : 1; #if defined(GDK_WINDOWING_WAYLAND) && defined(CLUTTER_WINDOWING_WAYLAND) struct wl_subcompositor *subcompositor; struct wl_subsurface *subsurface; #endif }; enum { PROP_0, PROP_USE_LAYOUT_SIZE }; static void gtk_clutter_embed_send_configure (GtkClutterEmbed *embed) { GtkWidget *widget; GtkAllocation allocation; GdkEvent *event = gdk_event_new (GDK_CONFIGURE); widget = GTK_WIDGET (embed); gtk_widget_get_allocation (widget, &allocation); event->configure.window = g_object_ref (gtk_widget_get_window (widget)); event->configure.send_event = TRUE; event->configure.x = allocation.x; event->configure.y = allocation.y; event->configure.width = allocation.width; event->configure.height = allocation.height; gtk_widget_event (widget, event); gdk_event_free (event); } static void on_stage_queue_redraw (ClutterStage *stage, ClutterActor *origin, gpointer user_data) { GtkWidget *embed = user_data; GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (embed)->priv; if (priv->n_active_children > 0) priv->geometry_changed = TRUE; gtk_widget_queue_draw (embed); } static void on_stage_queue_relayout (ClutterStage *stage, gpointer user_data) { GtkWidget *embed = user_data; GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (embed)->priv; if (priv->use_layout_size) gtk_widget_queue_resize (embed); } static void gtk_clutter_embed_dispose (GObject *gobject) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (gobject)->priv; if (priv->stage) { if (priv->queue_redraw_id) g_signal_handler_disconnect (priv->stage, priv->queue_redraw_id); if (priv->queue_relayout_id) g_signal_handler_disconnect (priv->stage, priv->queue_relayout_id); priv->queue_redraw_id = 0; priv->queue_relayout_id = 0; clutter_actor_destroy (priv->stage); priv->stage = NULL; } G_OBJECT_CLASS (gtk_clutter_embed_parent_class)->dispose (gobject); } static void gtk_clutter_embed_show (GtkWidget *widget) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; if (gtk_widget_get_realized (widget) && priv->stage != NULL) clutter_actor_show (priv->stage); GTK_WIDGET_CLASS (gtk_clutter_embed_parent_class)->show (widget); } static void gtk_clutter_embed_hide (GtkWidget *widget) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; /* gtk emits a hide signal during dispose, so it's possible we may * have already disposed priv->stage. */ if (priv->stage != NULL) clutter_actor_hide (priv->stage); GTK_WIDGET_CLASS (gtk_clutter_embed_parent_class)->hide (widget); } static GdkWindow * pick_embedded_child (GdkWindow *offscreen_window, double widget_x, double widget_y, GtkClutterEmbed *embed) { GtkClutterEmbedPrivate *priv = embed->priv; ClutterActor *a; GtkWidget *widget; a = clutter_stage_get_actor_at_pos (CLUTTER_STAGE (priv->stage), CLUTTER_PICK_REACTIVE, widget_x, widget_y); if (GTK_CLUTTER_IS_ACTOR (a)) { widget = gtk_clutter_actor_get_widget (GTK_CLUTTER_ACTOR (a)); if (GTK_CLUTTER_OFFSCREEN (widget)->active) return gtk_widget_get_window (widget); } return NULL; } static GdkFilterReturn gtk_clutter_filter_func (GdkXEvent *native_event, GdkEvent *event G_GNUC_UNUSED, gpointer user_data G_GNUC_UNUSED) { #if defined(CLUTTER_WINDOWING_X11) if (clutter_check_windowing_backend (CLUTTER_WINDOWING_X11)) { XEvent *xevent = native_event; /* let Clutter handle all events coming from the windowing system */ clutter_x11_handle_event (xevent); } else #endif #if defined(CLUTTER_WINDOWING_WIN32) if (clutter_check_windowing_backend (CLUTTER_WINDOWING_WIN32)) { MSG *msg = native_event; clutter_win32_handle_event (msg); } else #endif g_critical ("Unsuppored Clutter backend"); /* we don't care if Clutter handled the event: we want GDK to continue * the event processing as usual */ return GDK_FILTER_CONTINUE; } static void gtk_clutter_embed_realize (GtkWidget *widget) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; GtkAllocation allocation; GtkStyleContext *style_context; GdkWindow *window; GdkWindowAttr attributes; gint attributes_mask; gint border_width; #if defined(GDK_WINDOWING_X11) && defined(CLUTTER_WINDOWING_X11) if (clutter_check_windowing_backend (CLUTTER_WINDOWING_X11)) { const XVisualInfo *xvinfo; GdkVisual *visual; /* We need to use the colormap from the Clutter visual, since * the visual is tied to the GLX context */ xvinfo = clutter_x11_get_visual_info (); if (xvinfo == None) { g_critical ("Unable to retrieve the XVisualInfo from Clutter"); return; } visual = gdk_x11_screen_lookup_visual (gtk_widget_get_screen (widget), xvinfo->visualid); gtk_widget_set_visual (widget, visual); } #endif gtk_widget_set_realized (widget, TRUE); gtk_widget_get_allocation (widget, &allocation); border_width = gtk_container_get_border_width (GTK_CONTAINER (widget)); attributes.window_type = GDK_WINDOW_CHILD; attributes.x = allocation.x + border_width; attributes.y = allocation.y + border_width; attributes.width = allocation.width - 2 * border_width; attributes.height = allocation.height - 2 * border_width; attributes.wclass = GDK_INPUT_OUTPUT; attributes.visual = gtk_widget_get_visual (widget); /* NOTE: GDK_MOTION_NOTIFY above should be safe as Clutter does its own * throttling. */ attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK | GDK_SCROLL_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK | GDK_TOUCH_MASK | GDK_SMOOTH_SCROLL_MASK; attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL; window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask); gtk_widget_set_window (widget, window); gdk_window_set_user_data (window, widget); /* this does the translation of the event from Clutter to GDK * we embedding a GtkWidget inside a GtkClutterActor */ g_signal_connect (window, "pick-embedded-child", G_CALLBACK (pick_embedded_child), widget); style_context = gtk_widget_get_style_context (widget); gtk_style_context_set_background (style_context, window); #if defined(CLUTTER_WINDOWING_GDK) if (clutter_check_windowing_backend (CLUTTER_WINDOWING_GDK)) { clutter_gdk_set_stage_foreign (CLUTTER_STAGE (priv->stage), window); } else #endif #if defined(GDK_WINDOWING_X11) && defined(CLUTTER_WINDOWING_X11) if (clutter_check_windowing_backend (CLUTTER_WINDOWING_X11) && GDK_IS_X11_WINDOW (window)) { clutter_x11_set_stage_foreign (CLUTTER_STAGE (priv->stage), GDK_WINDOW_XID (window)); if (num_filter == 0) gdk_window_add_filter (NULL, gtk_clutter_filter_func, widget); num_filter++; } else #endif #if defined(GDK_WINDOWING_WIN32) && defined(CLUTTER_WINDOWING_WIN32) if (clutter_check_windowing_backend (CLUTTER_WINDOWING_WIN32) && GDK_IS_WIN32_WINDOW (window)) { clutter_win32_set_stage_foreign (CLUTTER_STAGE (priv->stage), GDK_WINDOW_HWND (window)); if (num_filter == 0) gdk_window_add_filter (NULL, gtk_clutter_filter_func, widget); num_filter++; } #endif #if defined(GDK_WINDOWING_WAYLAND) && defined(CLUTTER_WINDOWING_WAYLAND) if (priv->subcompositor) { GdkDisplay *display; struct wl_surface *clutter_surface, *gtk_surface; struct wl_compositor *compositor; display = gdk_display_get_default (); compositor = gdk_wayland_display_get_wl_compositor (display); clutter_surface = wl_compositor_create_surface (compositor); gtk_surface = gdk_wayland_window_get_wl_surface (gdk_window_get_toplevel(window)); clutter_wayland_stage_set_wl_surface (CLUTTER_STAGE (priv->stage), clutter_surface); priv->subsurface = wl_subcompositor_get_subsurface (priv->subcompositor, clutter_surface, gtk_surface); wl_subsurface_set_position (priv->subsurface, allocation.x, allocation.y); wl_subsurface_set_desync (priv->subsurface); } #endif clutter_actor_realize (priv->stage); if (gtk_widget_get_visible (widget)) clutter_actor_show (priv->stage); gtk_clutter_embed_send_configure (GTK_CLUTTER_EMBED (widget)); } static void gtk_clutter_embed_unrealize (GtkWidget *widget) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; if (num_filter > 0) { num_filter--; if (num_filter == 0) gdk_window_remove_filter (NULL, gtk_clutter_filter_func, widget); } if (priv->stage != NULL) clutter_actor_hide (priv->stage); GTK_WIDGET_CLASS (gtk_clutter_embed_parent_class)->unrealize (widget); } static GtkSizeRequestMode gtk_clutter_embed_get_request_mode (GtkWidget *widget) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; GtkSizeRequestMode mode; mode = GTK_SIZE_REQUEST_CONSTANT_SIZE; if (priv->stage != NULL && priv->use_layout_size && clutter_actor_get_layout_manager (priv->stage) != NULL) { switch (clutter_actor_get_request_mode (priv->stage)) { case CLUTTER_REQUEST_HEIGHT_FOR_WIDTH: mode = GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH; break; case CLUTTER_REQUEST_WIDTH_FOR_HEIGHT: mode = GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT; break; } } return mode; } static void gtk_clutter_embed_get_preferred_width_for_height (GtkWidget *widget, gint height, gint *minimum, gint *natural) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; float min, nat; min = 0; nat = 0; if (priv->stage != NULL && priv->use_layout_size) { ClutterLayoutManager *manager = clutter_actor_get_layout_manager (priv->stage); if (manager) clutter_layout_manager_get_preferred_width (manager, CLUTTER_CONTAINER (priv->stage), (float)height, &min, &nat); } min = ceilf (min); nat = ceilf (nat); if (minimum) *minimum = min; if (natural) *natural = nat; } static void gtk_clutter_embed_get_preferred_height_for_width (GtkWidget *widget, gint width, gint *minimum, gint *natural) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; float min, nat; min = 0; nat = 0; if (priv->stage != NULL && priv->use_layout_size) { ClutterLayoutManager *manager = clutter_actor_get_layout_manager (priv->stage); if (manager) clutter_layout_manager_get_preferred_height (manager, CLUTTER_CONTAINER (priv->stage), (float)width, &min, &nat); } min = ceilf (min); nat = ceilf (nat); if (minimum) *minimum = min; if (natural) *natural = nat; } static void gtk_clutter_embed_get_preferred_width (GtkWidget *widget, gint *minimum, gint *natural) { gtk_clutter_embed_get_preferred_width_for_height (widget, -1, minimum, natural); } static void gtk_clutter_embed_get_preferred_height (GtkWidget *widget, gint *minimum, gint *natural) { gtk_clutter_embed_get_preferred_height_for_width (widget, -1, minimum, natural); } static void gtk_clutter_embed_size_allocate (GtkWidget *widget, GtkAllocation *allocation) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; gtk_widget_set_allocation (widget, allocation); /* change the size of the stage and ensure that the viewport * has been updated as well */ clutter_actor_set_size (priv->stage, allocation->width, allocation->height); if (gtk_widget_get_realized (widget)) { gdk_window_move_resize (gtk_widget_get_window (widget), allocation->x, allocation->y, allocation->width, allocation->height); clutter_stage_ensure_viewport (CLUTTER_STAGE (priv->stage)); gtk_clutter_embed_send_configure (GTK_CLUTTER_EMBED (widget)); #if defined(GDK_WINDOWING_X11) && defined(CLUTTER_WINDOWING_X11) if (clutter_check_windowing_backend (CLUTTER_WINDOWING_X11) && GDK_IS_X11_WINDOW (gtk_widget_get_window (widget))) { XConfigureEvent xevent = { ConfigureNotify }; xevent.window = GDK_WINDOW_XID (gtk_widget_get_window (widget)); xevent.width = allocation->width; xevent.height = allocation->height; /* Ensure cogl knows about the new size immediately, as we will draw before we get the ConfigureNotify response. */ clutter_x11_handle_event ((XEvent *)&xevent); } #endif #if defined(GDK_WINDOWING_WAYLAND) && defined(CLUTTER_WINDOWING_WAYLAND) if (priv->subsurface) { wl_subsurface_set_position (priv->subsurface, allocation->x, allocation->y); } #endif } } static gboolean gtk_clutter_embed_map_event (GtkWidget *widget, GdkEventAny *event) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; GtkWidgetClass *parent_class; gboolean res = FALSE; parent_class = GTK_WIDGET_CLASS (gtk_clutter_embed_parent_class); if (parent_class->map_event) res = parent_class->map_event (widget, event); clutter_actor_map (priv->stage); clutter_actor_queue_redraw (priv->stage); return res; } static gboolean gtk_clutter_embed_unmap_event (GtkWidget *widget, GdkEventAny *event) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; GtkWidgetClass *parent_class; gboolean res = FALSE; parent_class = GTK_WIDGET_CLASS (gtk_clutter_embed_parent_class); if (parent_class->unmap_event) res = parent_class->unmap_event (widget, event); clutter_actor_unmap (priv->stage); return res; } static void gtk_clutter_embed_unmap (GtkWidget *widget) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; /* gtk may emit an unmap signal after dispose, so it's possible we may * have already disposed priv->stage. */ if (priv->stage != NULL) clutter_actor_unmap (priv->stage); GTK_WIDGET_CLASS (gtk_clutter_embed_parent_class)->unmap (widget); } static gboolean gtk_clutter_embed_focus_in (GtkWidget *widget, GdkEventFocus *event) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; g_signal_emit_by_name (priv->stage, "activate"); clutter_stage_set_key_focus (CLUTTER_STAGE (priv->stage), NULL); return FALSE; } static gboolean gtk_clutter_embed_focus_out (GtkWidget *widget, GdkEventFocus *event) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; g_signal_emit_by_name (priv->stage, "deactivate"); /* give back key focus to the stage */ clutter_stage_set_key_focus (CLUTTER_STAGE (priv->stage), NULL); return FALSE; } static gboolean gtk_clutter_embed_key_event (GtkWidget *widget, GdkEventKey *event) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; ClutterDeviceManager *manager; ClutterInputDevice *device; ClutterEvent cevent = { 0, }; if (event->type == GDK_KEY_PRESS) cevent.key.type = CLUTTER_KEY_PRESS; else if (event->type == GDK_KEY_RELEASE) cevent.key.type = CLUTTER_KEY_RELEASE; else return FALSE; manager = clutter_device_manager_get_default (); device = clutter_device_manager_get_core_device (manager, CLUTTER_KEYBOARD_DEVICE); cevent.key.stage = CLUTTER_STAGE (priv->stage); cevent.key.time = event->time; cevent.key.modifier_state = event->state; cevent.key.keyval = event->keyval; cevent.key.hardware_keycode = event->hardware_keycode; cevent.key.unicode_value = gdk_keyval_to_unicode (event->keyval); cevent.key.device = device; clutter_do_event (&cevent); return FALSE; } static void gtk_clutter_embed_style_updated (GtkWidget *widget) { GdkScreen *screen; GtkSettings *gtk_settings; ClutterSettings *clutter_settings; gchar *font_name; gint double_click_time, double_click_distance; #if defined(GDK_WINDOWING_X11) && defined(CLUTTER_WINDOWING_X11) gint xft_dpi, xft_hinting, xft_antialias; gchar *xft_hintstyle, *xft_rgba; #endif if (gtk_widget_get_realized (widget)) { #if 0 GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (widget)->priv; GtkStyleContext *style_context; GtkStateFlags state_flags; GdkRGBA *bg_color; ClutterColor color; style_context = gtk_widget_get_style_context (widget); state_flags = gtk_widget_get_state_flags (widget); gtk_style_context_get (style_context, state_flags, "background-color", &bg_color, NULL); color.red = CLAMP (bg_color->red * 255, 0, 255); color.green = CLAMP (bg_color->green * 255, 0, 255); color.blue = CLAMP (bg_color->blue * 255, 0, 255); color.alpha = CLAMP (bg_color->alpha * 255, 0, 255); clutter_stage_set_color (CLUTTER_STAGE (priv->stage), &color); gdk_rgba_free (bg_color); #endif } if (gtk_widget_has_screen (widget)) screen = gtk_widget_get_screen (widget); else screen = gdk_screen_get_default (); gtk_settings = gtk_settings_get_for_screen (screen); g_object_get (G_OBJECT (gtk_settings), "gtk-font-name", &font_name, "gtk-double-click-time", &double_click_time, "gtk-double-click-distance", &double_click_distance, NULL); #if defined(GDK_WINDOWING_X11) && defined(CLUTTER_WINDOWING_X11) if (GDK_IS_X11_SCREEN (screen)) { g_object_get (G_OBJECT (gtk_settings), "gtk-xft-dpi", &xft_dpi, "gtk-xft-antialias", &xft_antialias, "gtk-xft-hinting", &xft_hinting, "gtk-xft-hintstyle", &xft_hintstyle, "gtk-xft-rgba", &xft_rgba, NULL); } #endif /* copy all settings and values coming from GTK+ into * the ClutterBackend; this way, a scene embedded into * a GtkClutterEmbed will not look completely alien */ clutter_settings = clutter_settings_get_default (); #if defined(GDK_WINDOWING_X11) && defined(CLUTTER_WINDOWING_X11) if (GDK_IS_X11_SCREEN (screen)) { g_object_set (G_OBJECT (clutter_settings), "font-name", font_name, "double-click-time", double_click_time, "double-click-distance", double_click_distance, "font-antialias", xft_antialias, "font-dpi", xft_dpi, "font-hinting", xft_hinting, "font-hint-style", xft_hintstyle, "font-subpixel-order", xft_rgba, NULL); } else #endif { g_object_set (G_OBJECT (clutter_settings), "font-name", font_name, "double-click-time", double_click_time, "double-click-distance", double_click_distance, NULL); } #if defined(GDK_WINDOWING_X11) && defined(CLUTTER_WINDOWING_X11) if (GDK_IS_X11_SCREEN (screen)) { g_free (xft_hintstyle); g_free (xft_rgba); } #endif g_free (font_name); GTK_WIDGET_CLASS (gtk_clutter_embed_parent_class)->style_updated (widget); } void _gtk_clutter_embed_set_child_active (GtkClutterEmbed *embed, GtkWidget *child, gboolean active) { GdkWindow *child_window; child_window = gtk_widget_get_window (child); if (active) { embed->priv->n_active_children++; gdk_offscreen_window_set_embedder (child_window, gtk_widget_get_window (GTK_WIDGET (embed))); } else { embed->priv->n_active_children--; gdk_offscreen_window_set_embedder (child_window, NULL); } } static void gtk_clutter_embed_add (GtkContainer *container, GtkWidget *widget) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (container)->priv; #ifndef G_DISABLE_ASSERT if (G_UNLIKELY (!GTK_CLUTTER_IS_OFFSCREEN (widget))) { g_critical ("Widgets of type '%s' do not support children.", G_OBJECT_TYPE_NAME (container)); return; } #endif priv->children = g_list_prepend (priv->children, widget); gtk_widget_set_parent (widget, GTK_WIDGET (container)); } static void gtk_clutter_embed_remove (GtkContainer *container, GtkWidget *widget) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (container)->priv; GList *l; l = g_list_find (priv->children, widget); if (l != NULL) { priv->children = g_list_delete_link (priv->children, l); gtk_widget_unparent (widget); } } static void gtk_clutter_embed_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data) { GtkClutterEmbedPrivate *priv = GTK_CLUTTER_EMBED (container)->priv; GList *l; if (include_internals) { for (l = priv->children; l != NULL; l = l->next) callback (l->data, callback_data); } } static GType gtk_clutter_embed_child_type (GtkContainer *container) { /* we only accept GtkClutterOffscreen children */ return GTK_CLUTTER_TYPE_OFFSCREEN; } static gboolean gtk_clutter_embed_event (GtkWidget *widget, GdkEvent *event) { #if defined(CLUTTER_WINDOWING_GDK) if (clutter_check_windowing_backend (CLUTTER_WINDOWING_GDK)) clutter_gdk_handle_event (event); #endif return FALSE; } static void gtk_clutter_embed_set_property (GObject *gobject, guint prop_id, const GValue *value, GParamSpec *pspec) { GtkClutterEmbed *embed = GTK_CLUTTER_EMBED (gobject); switch (prop_id) { case PROP_USE_LAYOUT_SIZE: gtk_clutter_embed_set_use_layout_size (embed, g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec); break; } } static void gtk_clutter_embed_get_property (GObject *gobject, guint prop_id, GValue *value, GParamSpec *pspec) { GtkClutterEmbed *embed = GTK_CLUTTER_EMBED (gobject); switch (prop_id) { case PROP_USE_LAYOUT_SIZE: g_value_set_boolean (value, embed->priv->use_layout_size); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec); break; } } static void gtk_clutter_embed_class_init (GtkClutterEmbedClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass); GParamSpec *pspec; g_type_class_add_private (klass, sizeof (GtkClutterEmbedPrivate)); gobject_class->dispose = gtk_clutter_embed_dispose; gobject_class->set_property = gtk_clutter_embed_set_property; gobject_class->get_property = gtk_clutter_embed_get_property; widget_class->style_updated = gtk_clutter_embed_style_updated; widget_class->size_allocate = gtk_clutter_embed_size_allocate; widget_class->realize = gtk_clutter_embed_realize; widget_class->unrealize = gtk_clutter_embed_unrealize; widget_class->show = gtk_clutter_embed_show; widget_class->hide = gtk_clutter_embed_hide; widget_class->unmap = gtk_clutter_embed_unmap; widget_class->map_event = gtk_clutter_embed_map_event; widget_class->unmap_event = gtk_clutter_embed_unmap_event; widget_class->focus_in_event = gtk_clutter_embed_focus_in; widget_class->focus_out_event = gtk_clutter_embed_focus_out; widget_class->key_press_event = gtk_clutter_embed_key_event; widget_class->key_release_event = gtk_clutter_embed_key_event; widget_class->event = gtk_clutter_embed_event; widget_class->get_request_mode = gtk_clutter_embed_get_request_mode; widget_class->get_preferred_width = gtk_clutter_embed_get_preferred_width; widget_class->get_preferred_height = gtk_clutter_embed_get_preferred_height; widget_class->get_preferred_width_for_height = gtk_clutter_embed_get_preferred_width_for_height; widget_class->get_preferred_height_for_width = gtk_clutter_embed_get_preferred_height_for_width; container_class->add = gtk_clutter_embed_add; container_class->remove = gtk_clutter_embed_remove; container_class->forall = gtk_clutter_embed_forall; container_class->child_type = gtk_clutter_embed_child_type; /** * GtkClutterEmbed:use-layout-size: * * The #GtkWidget to be embedded into the #GtkClutterActor * * Since: 1.4 */ pspec = g_param_spec_boolean ("use-layout-size", "Use layout size", "Whether to use the reported size of the LayoutManager on the stage as the widget size.", FALSE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS); g_object_class_install_property (gobject_class, PROP_USE_LAYOUT_SIZE, pspec); } #if defined(GDK_WINDOWING_WAYLAND) && defined(CLUTTER_WINDOWING_WAYLAND) static void registry_handle_global (void *data, struct wl_registry *registry, uint32_t name, const char *interface, uint32_t version) { GtkClutterEmbed *embed = data; GtkClutterEmbedPrivate *priv = embed->priv; if (strcmp (interface, "wl_subcompositor") == 0) { priv->subcompositor = wl_registry_bind (registry, name, &wl_subcompositor_interface, 1); } } static void registry_handle_global_remove (void *data, struct wl_registry *registry, uint32_t name) { } static const struct wl_registry_listener registry_listener = { registry_handle_global, registry_handle_global_remove }; #endif static void gtk_clutter_embed_init (GtkClutterEmbed *embed) { GtkClutterEmbedPrivate *priv; GtkWidget *widget; embed->priv = priv = GTK_CLUTTER_EMBED_GET_PRIVATE (embed); widget = GTK_WIDGET (embed); /* we have a real window backing our drawing */ gtk_widget_set_has_window (widget, TRUE); /* we accept key focus */ gtk_widget_set_can_focus (widget, TRUE); /* disable double-buffering: it's automatically provided by OpenGL */ gtk_widget_set_double_buffered (widget, FALSE); /* we own the whole drawing of this widget, including the background */ gtk_widget_set_app_paintable (widget, TRUE); /* this widget should expand in both directions */ gtk_widget_set_hexpand (widget, TRUE); gtk_widget_set_vexpand (widget, TRUE); /* we always create new stages rather than use the default */ priv->stage = clutter_stage_new (); g_object_set_data (G_OBJECT (priv->stage), "gtk-clutter-embed", embed); /* intercept the queue-redraw signal of the stage to know when * Clutter-side requests a redraw; this way we can also request * a redraw GTK-side */ priv->queue_redraw_id = g_signal_connect (priv->stage, "queue-redraw", G_CALLBACK (on_stage_queue_redraw), embed); /* intercept the queue-relayout signal of the stage to know when * Clutter-side needs to renegotiate it's size; this way we can * also request a resize GTK-side */ priv->queue_relayout_id = g_signal_connect (priv->stage, "queue-relayout", G_CALLBACK (on_stage_queue_relayout), embed); #if defined(GDK_WINDOWING_WAYLAND) && defined(CLUTTER_WINDOWING_WAYLAND) { GdkDisplay *gdk_display = gdk_display_get_default (); if (clutter_check_windowing_backend (CLUTTER_WINDOWING_WAYLAND) && GDK_IS_WAYLAND_DISPLAY (gdk_display)) { struct wl_display *display; struct wl_registry *registry; display = gdk_wayland_display_get_wl_display (gdk_display); registry = wl_display_get_registry (display); wl_registry_add_listener (registry, ®istry_listener, embed); wl_display_roundtrip (display); } } #endif } /** * gtk_clutter_embed_new: * * Creates a new #GtkClutterEmbed widget. This widget can be * used to build a scene using Clutter API into a GTK+ application. * * Return value: the newly created #GtkClutterEmbed */ GtkWidget * gtk_clutter_embed_new (void) { return g_object_new (GTK_CLUTTER_TYPE_EMBED, NULL); } /** * gtk_clutter_embed_get_stage: * @embed: a #GtkClutterEmbed * * Retrieves the #ClutterStage from @embed. The returned stage can be * used to add actors to the Clutter scene. * * Return value: (transfer none): the Clutter stage. You should never * destroy or unref the returned actor. */ ClutterActor * gtk_clutter_embed_get_stage (GtkClutterEmbed *embed) { g_return_val_if_fail (GTK_CLUTTER_IS_EMBED (embed), NULL); return embed->priv->stage; } /** * gtk_clutter_embed_set_use_layout_size: * @embed: a #GtkClutterEmbed * @use_layout_size: a boolean * * Changes the way @embed requests size. If @use_layout_size is * %TRUE, the @embed widget will request the size that the * LayoutManager reports as the preferred size. This means that * a Gtk+ window will automatically get the natural and minimum * toplevel window sizes. This is useful when the contents of the * clutter stage is similar to a traditional UI. * * If @use_layout_size is %FALSE (which is the default) then @embed * will not request any size and its up to the embedder to make sure * there is some size (by setting a custom size on the widget or a default * size on the toplevel. This makes more sense when using the @embed * as a viewport into a potentially unlimited clutter space. * * Since: 1.4 */ void gtk_clutter_embed_set_use_layout_size (GtkClutterEmbed *embed, gboolean use_layout_size) { GtkClutterEmbedPrivate *priv = embed->priv; g_return_if_fail (GTK_CLUTTER_IS_EMBED (embed)); use_layout_size = !!use_layout_size; if (use_layout_size != priv->use_layout_size) { priv->use_layout_size = use_layout_size; gtk_widget_queue_resize (GTK_WIDGET (embed)); g_object_notify (G_OBJECT (embed), "use-layout-size"); } } /** * gtk_clutter_embed_get_use_layout_size: * @embed: a #GtkClutterEmbed * * Retrieves whether the embedding uses the layout size, see * gtk_clutter_embed_set_use_layout_size() for details. * * Return value: %TRUE if reporting stage size as widget size, %FALSE otherwise. * * Since: 1.4 */ gboolean gtk_clutter_embed_get_honor_stage_size (GtkClutterEmbed *embed) { GtkClutterEmbedPrivate *priv = embed->priv; g_return_val_if_fail (GTK_CLUTTER_IS_EMBED (embed), FALSE); return priv->use_layout_size; }