/* * Clutter. * * An OpenGL based 'interactive canvas' library. * * Authored By Matthew Allum * * Copyright (C) 2006 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, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /** * SECTION:clutter-actor * @short_description: Base abstract class for all visual stage actors. * * #ClutterActor is a base abstract class for all visual elements on the * stage. Every object that must appear on the main #ClutterStage must also * be a #ClutterActor, either by using one of the classes provided by * Clutter, or by implementing a new #ClutterActor subclass. * * Ordering on/Notes on tranformations. FIXME. * * Notes on clutter actor events: * * Actors emit pointer events if set reactive, see * clutter_actor_set_reactive() * The stage is always reactive * Events are handled by connecting signal handlers to * the numerous event signal types. * Event handlers must return %TRUE if they handled * the event and wish to block the event emission chain; and %FALSE * if the emission chain must continue * Keyboard events are emitted if actor has focus, see * clutter_stage_set_focus() * Motion events (motion, enter, leave) are only emitted * per actor if clutter_enable_motion_events() was called with %TRUE. If * set to %FALSE (the default) then only the stage emits motion * events (no enter or leave events). * Once emitted, an event emmision chain has two * phases: capture and bubble. A emitted event starts in the capture * phase beginning at the stage and transversing child actors until * the event source actor is reached. The emmision then enters the bubble * phase transversing back up via parents to the stage. An event * handler can abort this chain at point by returning * %TRUE. * Pointer events will 'pass through' non reactive actors. * * */ /** * CLUTTER_ACTOR_IS_MAPPED: * @e: a #ClutterActor * * Evaluates to %TRUE if the %CLUTTER_ACTOR_MAPPED flag is set. * * Since: 0.2 */ /** * CLUTTER_ACTOR_IS_REALIZED: * @e: a #ClutterActor * * Evaluates to %TRUE if the %CLUTTER_ACTOR_REALIZED flag is set. * * Since: 0.2 */ /** * CLUTTER_ACTOR_IS_VISIBLE: * @e: a #ClutterActor * * Evaluates to %TRUE if the actor is both realized and mapped. * * Since: 0.2 */ /** * CLUTTER_ACTOR_IS_REACTIVE: * @e: a #ClutterActor * * Evaluates to %TRUE if the %CLUTTER_ACTOR_REACTIVE flag is set. * * Since: 0.6 */ /** * CLUTTER_ACTOR_SET_FLAGS: * @e: a #ClutterActor * @f: the flags to set * * Sets flags on the given #ClutterActor * * Since: 0.2 */ /** * CLUTTER_ACTOR_UNSET_FLAGS: * @e: a #ClutterActor * @f: the flags to unset * * Unsets flags on the given #ClutterActor * * Since: 0.2 */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "clutter-actor.h" #include "clutter-container.h" #include "clutter-main.h" #include "clutter-enum-types.h" #include "clutter-scriptable.h" #include "clutter-script.h" #include "clutter-marshal.h" #include "clutter-private.h" #include "clutter-debug.h" #include "clutter-units.h" #include "cogl.h" G_DEFINE_ABSTRACT_TYPE (ClutterActor, clutter_actor, G_TYPE_INITIALLY_UNOWNED); static guint32 __id = 0; #define CLUTTER_ACTOR_GET_PRIVATE(obj) \ (G_TYPE_INSTANCE_GET_PRIVATE ((obj), CLUTTER_TYPE_ACTOR, ClutterActorPrivate)) struct _ClutterActorPrivate { ClutterActorBox coords; ClutterGeometry clip; /* FIXME: Should be Units */ guint has_clip : 1; ClutterFixed rxang, ryang, rzang; /* Rotation*/ gint rzx, rzy, rxy, rxz, ryx, ryz; /* FIXME: Should be Units */ gint z; guint8 opacity; ClutterActor *parent_actor; gchar *name; ClutterFixed scale_x, scale_y; guint32 id; /* Unique ID */ }; enum { PROP_0, PROP_X, PROP_Y, PROP_WIDTH, PROP_HEIGHT, PROP_DEPTH, PROP_CLIP, PROP_HAS_CLIP, PROP_OPACITY, PROP_NAME, PROP_VISIBLE, PROP_SCALE_X, PROP_SCALE_Y, PROP_REACTIVE }; enum { SHOW, HIDE, DESTROY, PARENT_SET, FOCUS_IN, FOCUS_OUT, EVENT, CAPTURED_EVENT, BUTTON_PRESS_EVENT, BUTTON_RELEASE_EVENT, SCROLL_EVENT, KEY_PRESS_EVENT, KEY_RELEASE_EVENT, MOTION_EVENT, ENTER_EVENT, LEAVE_EVENT, LAST_SIGNAL }; static guint actor_signals[LAST_SIGNAL] = { 0, }; static void _clutter_actor_apply_modelview_transform (ClutterActor * self); static void _clutter_actor_apply_modelview_transform_recursive (ClutterActor * self); static gboolean redraw_update_idle (gpointer data) { ClutterMainContext *ctx = CLUTTER_CONTEXT(); if (ctx->update_idle) { g_source_remove (ctx->update_idle); ctx->update_idle = 0; } clutter_redraw (); return FALSE; } static void clutter_actor_real_show (ClutterActor *self) { if (!CLUTTER_ACTOR_IS_VISIBLE (self)) { if (!CLUTTER_ACTOR_IS_REALIZED (self)) clutter_actor_realize (self); CLUTTER_ACTOR_SET_FLAGS (self, CLUTTER_ACTOR_MAPPED); if (CLUTTER_ACTOR_IS_VISIBLE (self)) clutter_actor_queue_redraw (self); } } /** * clutter_actor_show * @self: A #ClutterActor * * Flags a clutter actor to be displayed. An actor not shown will not * appear on the display. **/ void clutter_actor_show (ClutterActor *self) { if (!CLUTTER_ACTOR_IS_VISIBLE (self)) { g_object_ref (self); g_signal_emit (self, actor_signals[SHOW], 0); g_object_notify (G_OBJECT (self), "visible"); g_object_unref (self); } } /** * clutter_actor_show_all: * @self: a #ClutterActor * * Call show() on all children of a actor (if any). * * Since: 0.2 */ void clutter_actor_show_all (ClutterActor *self) { ClutterActorClass *klass; g_return_if_fail (CLUTTER_IS_ACTOR (self)); klass = CLUTTER_ACTOR_GET_CLASS (self); if (klass->show_all) klass->show_all (self); } void clutter_actor_real_hide (ClutterActor *self) { if (CLUTTER_ACTOR_IS_VISIBLE (self)) { CLUTTER_ACTOR_UNSET_FLAGS (self, CLUTTER_ACTOR_MAPPED); clutter_actor_queue_redraw (self); } } /** * clutter_actor_hide * @self: A #ClutterActor * * Flags a clutter actor to be hidden. An actor not shown will not * appear on the display. **/ void clutter_actor_hide (ClutterActor *self) { if (CLUTTER_ACTOR_IS_VISIBLE (self)) { g_object_ref (self); if (CLUTTER_ACTOR_IS_REACTIVE(self)) ; /* FIXME: decrease global reactive count */ g_signal_emit (self, actor_signals[HIDE], 0); g_object_notify (G_OBJECT (self), "visible"); g_object_unref (self); } } /** * clutter_actor_hide_all: * @self: a #ClutterActor * * Call hide() on all child actors (if any). * * Since: 0.2 */ void clutter_actor_hide_all (ClutterActor *self) { ClutterActorClass *klass; g_return_if_fail (CLUTTER_IS_ACTOR (self)); klass = CLUTTER_ACTOR_GET_CLASS (self); if (klass->hide_all) klass->hide_all (self); } /** * clutter_actor_realize * @self: A #ClutterActor * * Creates any underlying graphics resources needed by the actor to be * displayed. **/ void clutter_actor_realize (ClutterActor *self) { ClutterActorClass *klass; if (CLUTTER_ACTOR_IS_REALIZED (self)) return; CLUTTER_ACTOR_SET_FLAGS (self, CLUTTER_ACTOR_REALIZED); klass = CLUTTER_ACTOR_GET_CLASS (self); if (klass->realize) (klass->realize) (self); } /** * clutter_actor_unrealize * @self: A #ClutterActor * * Frees up any underlying graphics resources needed by the actor to be * displayed. **/ void clutter_actor_unrealize (ClutterActor *self) { ClutterActorClass *klass; if (!CLUTTER_ACTOR_IS_REALIZED (self)) return; CLUTTER_ACTOR_UNSET_FLAGS (self, CLUTTER_ACTOR_REALIZED); klass = CLUTTER_ACTOR_GET_CLASS (self); if (klass->unrealize) (klass->unrealize) (self); } static void clutter_actor_real_pick (ClutterActor *self, const ClutterColor *color) { if (clutter_actor_should_pick_paint (self)) { cogl_color (color); cogl_rectangle (0, 0, clutter_actor_get_width(self), clutter_actor_get_height(self)); } } /** * clutter_actor_pick: * @self: A #ClutterActor * @color: A #ClutterColor * * Renders a silhouette of the actor in supplied color. Used internally for * mapping pointer events to actors. * * This function should not never be called directly by applications. * * Subclasses overiding this method should call * #clutter_actor_should_pick_paint to decide if to render there * silhouette but in any case should still recursively call pick for * any children. * * Since 0.4 **/ void clutter_actor_pick (ClutterActor *self, const ClutterColor *color) { g_return_if_fail (CLUTTER_IS_ACTOR (self)); g_return_if_fail (color != NULL); CLUTTER_ACTOR_GET_CLASS (self)->pick(self, color); } /** * clutter_actor_should_pick_paint: * @self: A #ClutterActor * * Utility call for subclasses overiding the pick method. * * This function should not never be called directly by applications. * * Return value: TRUE if the actor should paint its silhouette, FALSE otherwise */ gboolean clutter_actor_should_pick_paint (ClutterActor *self) { ClutterMainContext *context; g_return_val_if_fail (CLUTTER_IS_ACTOR (self), FALSE); context = clutter_context_get_default (); if (CLUTTER_ACTOR_IS_MAPPED (self) && (G_UNLIKELY(context->pick_mode == CLUTTER_PICK_ALL) || CLUTTER_ACTOR_IS_REACTIVE (self))) return TRUE; return FALSE; } /* * Utility functions for manipulating transformation matrix * * Matrix: 4x4 of ClutterFixed */ #define M(m,row,col) (m)[col*4+row] /* Transform point (x,y,z) by matrix */ static void mtx_transform (ClutterFixed m[16], ClutterFixed *x, ClutterFixed *y, ClutterFixed *z, ClutterFixed *w) { ClutterFixed _x, _y, _z, _w; _x = *x; _y = *y; _z = *z; _w = *w; /* We care lot about precission here, so have to use QMUL */ *x = CFX_QMUL (M (m,0,0), _x) + CFX_QMUL (M (m,0,1), _y) + CFX_QMUL (M (m,0,2), _z) + CFX_QMUL (M (m,0,3), _w); *y = CFX_QMUL (M (m,1,0), _x) + CFX_QMUL (M (m,1,1), _y) + CFX_QMUL (M (m,1,2), _z) + CFX_QMUL (M (m,1,3), _w); *z = CFX_QMUL (M (m,2,0), _x) + CFX_QMUL (M (m,2,1), _y) + CFX_QMUL (M (m,2,2), _z) + CFX_QMUL (M (m,2,3), _w); *w = CFX_QMUL (M (m,3,0), _x) + CFX_QMUL (M (m,3,1), _y) + CFX_QMUL (M (m,3,2), _z) + CFX_QMUL (M (m,3,3), _w); /* Specially for Matthew: was going to put a comment here, but could not * think of anything at all to say ;) */ } /* Applies the transforms associated with this actor and its ancestors, * retrieves the resulting OpenGL modelview matrix, and uses the matrix * to transform the supplied point */ static void clutter_actor_transform_point (ClutterActor *actor, ClutterUnit *x, ClutterUnit *y, ClutterUnit *z, ClutterUnit *w) { ClutterFixed mtx[16]; ClutterActorPrivate *priv; g_return_if_fail (CLUTTER_IS_ACTOR (actor)); priv = actor->priv; cogl_push_matrix(); _clutter_actor_apply_modelview_transform_recursive (actor); cogl_get_modelview_matrix (mtx); mtx_transform (mtx, x, y, z, w); cogl_pop_matrix(); } /* Help macros to scale from OpenGL <-1,1> coordinates system to our * X-window based <0,window-size> coordinates */ #define MTX_GL_SCALE_X(x,w,v1,v2) (CFX_MUL( \ ((CFX_DIV (x,w) + CFX_ONE) >> 1), v1) \ + v2) #define MTX_GL_SCALE_Y(y,w,v1,v2) (v1 - CFX_MUL( \ ((CFX_DIV (y,w) + CFX_ONE) >> 1), v1) \ + v2) #define MTX_GL_SCALE_Z(z,w,v1,v2) MTX_GL_SCALE_X(z,w,v1,v2) /** * clutter_actor_apply_transform_to_point: * @self: A #ClutterActor * @point: A point as #ClutterVertex * @vertex: The translated #ClutterVertex * * Transforms point in coordinates relative to the actor * into screen coordiances with the current actor tranform * (i.e. scale, rotation etc) * * Since: 0.4 **/ void clutter_actor_apply_transform_to_point (ClutterActor *self, ClutterVertex *point, ClutterVertex *vertex) { ClutterFixed mtx_p[16]; ClutterFixed v[4]; ClutterFixed w = CFX_ONE; g_return_if_fail (CLUTTER_IS_ACTOR (self)); /* First we tranform the point using the OpenGL modelview matrix */ clutter_actor_transform_point (self, &point->x, &point->y, &point->z, &w); cogl_get_projection_matrix (mtx_p); cogl_get_viewport (v); /* Now, transform it again with the projection matrix */ mtx_transform (mtx_p, &point->x, &point->y, &point->z, &w); /* Finaly translate from OpenGL coords to window coords */ vertex->x = MTX_GL_SCALE_X(point->x,w,v[2],v[0]); vertex->y = MTX_GL_SCALE_Y(point->y,w,v[3],v[1]); vertex->z = MTX_GL_SCALE_Z(point->z,w,v[2],v[0]); } /* Recursively tranform supplied vertices with the tranform for the current * actor and all its ancestors (like clutter_actor_transform_point() but * for all the vertices in one go). */ static void clutter_actor_transform_vertices (ClutterActor * self, ClutterVertex verts[4], ClutterFixed w[4]) { ClutterFixed mtx[16]; ClutterFixed _x, _y, _z, _w; ClutterActorPrivate *priv; g_return_if_fail (CLUTTER_IS_ACTOR (self)); priv = self->priv; cogl_push_matrix(); _clutter_actor_apply_modelview_transform_recursive (self); cogl_get_modelview_matrix (mtx); _x = 0; _y = 0; _z = 0; _w = CFX_ONE; mtx_transform (mtx, &_x, &_y, &_z, &_w); verts[0].x = _x; verts[0].y = _y; verts[0].z = _z; w[0] = _w; _x = priv->coords.x2 - priv->coords.x1; _y = 0; _z = 0; _w = CFX_ONE; mtx_transform (mtx, &_x, &_y, &_z, &_w); verts[1].x = _x; verts[1].y = _y; verts[1].z = _z; w[1] = _w; _x = 0; _y = priv->coords.y2 - priv->coords.y1; _z = 0; _w = CFX_ONE; mtx_transform (mtx, &_x, &_y, &_z, &_w); verts[2].x = _x; verts[2].y = _y; verts[2].z = _z; w[2] = _w; _x = priv->coords.x2 - priv->coords.x1; _y = priv->coords.y2 - priv->coords.y1; _z = 0; _w = CFX_ONE; mtx_transform (mtx, &_x, &_y, &_z, &_w); verts[3].x = _x; verts[3].y = _y; verts[3].z = _z; w[3] = _w; cogl_pop_matrix(); } /** * clutter_actor_get_vertices: * @self: A #ClutterActor * @verts: Pointer to a location of an array of 4 #ClutterVertex where to * store the result. * * Calculates the tranformed screen coordinates of the four corners of * the actor; the returned vertices relate to the ClutterActorBox * coordinates as follows: * * v[0] contains (x1, y1) * v[1] contains (x2, y1) * v[2] contains (x1, y2) * v[3] contains (x2, y2) * * Since: 0.4 **/ void clutter_actor_get_vertices (ClutterActor *self, ClutterVertex verts[4]) { ClutterFixed mtx_p[16]; ClutterFixed v[4]; ClutterFixed w[4]; ClutterActorPrivate *priv; g_return_if_fail (CLUTTER_IS_ACTOR (self)); priv = self->priv; clutter_actor_transform_vertices (self, verts, w); cogl_get_projection_matrix (mtx_p); cogl_get_viewport (v); mtx_transform (mtx_p, &verts[0].x, &verts[0].y, &verts[0].z, &w[0]); verts[0].x = MTX_GL_SCALE_X (verts[0].x, w[0], v[2], v[0]); verts[0].y = MTX_GL_SCALE_Y (verts[0].y, w[0], v[3], v[1]); verts[0].z = MTX_GL_SCALE_Z (verts[0].z, w[0], v[2], v[0]); mtx_transform (mtx_p, &verts[1].x, &verts[1].y, &verts[1].z, &w[1]); verts[1].x = MTX_GL_SCALE_X (verts[1].x, w[1], v[2], v[0]); verts[1].y = MTX_GL_SCALE_Y (verts[1].y, w[1], v[3], v[1]); verts[1].z = MTX_GL_SCALE_Z (verts[1].z, w[1], v[2], v[0]); mtx_transform (mtx_p, &verts[2].x, &verts[2].y, &verts[2].z, &w[2]); verts[2].x = MTX_GL_SCALE_X (verts[2].x, w[2], v[2], v[0]); verts[2].y = MTX_GL_SCALE_Y (verts[2].y, w[2], v[3], v[1]); verts[2].z = MTX_GL_SCALE_Z (verts[2].z, w[2], v[2], v[0]); mtx_transform (mtx_p, &verts[3].x, &verts[3].y, &verts[3].z, &w[3]); verts[3].x = MTX_GL_SCALE_X (verts[3].x, w[3], v[2], v[0]); verts[3].y = MTX_GL_SCALE_Y (verts[3].y, w[3], v[3], v[1]); verts[3].z = MTX_GL_SCALE_Z (verts[3].z, w[3], v[2], v[0]); } /* Applies the transforms associated with this actor to the * OpenGL modelview matrix. * * This function does not push/pop matrix; it is the responsibility * of the caller to do so as appropriate */ static void _clutter_actor_apply_modelview_transform (ClutterActor * self) { ClutterActorPrivate *priv = self->priv; if (clutter_actor_get_parent (self) != NULL) { cogl_translate (CLUTTER_UNITS_TO_INT (priv->coords.x1), CLUTTER_UNITS_TO_INT (priv->coords.y1), 0); } /* * because the rotation involves translations, we must scale before * applying the rotations (if we apply the scale after the rotations, * the translations included in the rotation are not scaled and so the * entire object will move on the screen as a result of rotating it). */ if (priv->scale_x != CFX_ONE || priv->scale_y != CFX_ONE) { cogl_scale (priv->scale_x, priv->scale_y); } if (priv->rzang) { cogl_translate (priv->rzx, priv->rzy, 0); cogl_rotatex (priv->rzang, 0, 0, CFX_ONE); cogl_translate (-priv->rzx, -priv->rzy, 0); } if (priv->ryang) { cogl_translate (priv->ryx, 0, priv->z + priv->ryz); cogl_rotatex (priv->ryang, 0, CFX_ONE, 0); cogl_translate (-priv->ryx, 0, -(priv->z + priv->ryz)); } if (priv->rxang) { cogl_translate (0, priv->rxy, priv->z + priv->rxz); cogl_rotatex (priv->rxang, CFX_ONE, 0, 0); cogl_translate (0, -priv->rxy, -(priv->z + priv->rxz)); } if (priv->z) cogl_translate (0, 0, priv->z); if (priv->has_clip) cogl_clip_set (&(priv->clip)); } /* Recursively applies the transforms associated with this actor and * its ancestors to the OpenGL modelview matrix. * * This function does not push/pop matrix; it is the responsibility * of the caller to do so as appropriate */ static void _clutter_actor_apply_modelview_transform_recursive (ClutterActor * self) { ClutterActor * parent; parent = clutter_actor_get_parent (self); if (parent) _clutter_actor_apply_modelview_transform_recursive (parent); _clutter_actor_apply_modelview_transform (self); } /** * clutter_actor_paint: * @self: A #ClutterActor * * Renders the actor to display. * * This function should not be called directly by applications instead * #clutter_actor_queue_redraw should be used to queue paints. **/ void clutter_actor_paint (ClutterActor *self) { ClutterActorPrivate *priv; ClutterActorClass *klass; ClutterMainContext *context; g_return_if_fail (CLUTTER_IS_ACTOR (self)); priv = self->priv; if (!CLUTTER_ACTOR_IS_REALIZED (self)) { CLUTTER_NOTE (PAINT, "Attempting realize via paint()"); clutter_actor_realize(self); if (!CLUTTER_ACTOR_IS_REALIZED (self)) { CLUTTER_NOTE (PAINT, "Attempt failed, aborting paint"); return; } } context = clutter_context_get_default (); klass = CLUTTER_ACTOR_GET_CLASS (self); cogl_push_matrix(); _clutter_actor_apply_modelview_transform (self); if (G_UNLIKELY(context->pick_mode != CLUTTER_PICK_NONE)) { gint r, g, b; ClutterColor col; guint32 id; id = clutter_actor_get_gid (self); cogl_get_bitmasks (&r, &g, &b, NULL); /* Encode the actor id into a color, taking into account bpp */ col.red = ((id >> (g+b)) & (0xff>>(8-r)))<<(8-r); col.green = ((id >> b) & (0xff>>(8-g))) << (8-g); col.blue = (id & (0xff>>(8-b)))<<(8-b); col.alpha = 0xff; /* Actor will then paint silhouette of itself in supplied * color. See clutter_stage_get_actor_at_pos() for where * picking is enabled. */ clutter_actor_pick (self, &col); } else { if (G_LIKELY(klass->paint)) (klass->paint) (self); } if (priv->has_clip) cogl_clip_unset(); cogl_pop_matrix(); } #undef M /** * clutter_actor_request_coords: * @self: A #ClutterActor * @box: A #ClutterActorBox with requested new co-ordinates in ClutterUnits * * Requests new untransformed co-ordinates for the #ClutterActor * ralative to any parent. * * This function should not be called directly by applications instead * the various position/geometry methods should be used. **/ void clutter_actor_request_coords (ClutterActor *self, ClutterActorBox *box) { ClutterActorClass *klass; gboolean x_change, y_change, width_change, height_change; g_return_if_fail (CLUTTER_IS_ACTOR (self)); g_return_if_fail (box != NULL); klass = CLUTTER_ACTOR_GET_CLASS (self); if (klass->request_coords) klass->request_coords (self, box); x_change = (self->priv->coords.x1 != box->x1); y_change = (self->priv->coords.y1 != box->y1); width_change = ((self->priv->coords.x2 - self->priv->coords.x1) != (box->x2 - box->x1)); height_change = ((self->priv->coords.y2 - self->priv->coords.y1) != (box->y2 - box->y1)); if (x_change || y_change || width_change || height_change) { self->priv->coords.x1 = box->x1; self->priv->coords.y1 = box->y1; self->priv->coords.x2 = box->x2; self->priv->coords.y2 = box->y2; if (CLUTTER_ACTOR_IS_VISIBLE (self)) clutter_actor_queue_redraw (self); g_object_ref (self); g_object_freeze_notify (G_OBJECT (self)); if (x_change) g_object_notify (G_OBJECT (self), "x"); if (y_change) g_object_notify (G_OBJECT (self), "y"); if (width_change) g_object_notify (G_OBJECT (self), "width"); if (height_change) g_object_notify (G_OBJECT (self), "height"); g_object_thaw_notify (G_OBJECT (self)); g_object_unref (self); } } /** * clutter_actor_query_coords: * @self: A #ClutterActor * @box: A location to store the actors #ClutterActorBox co-ordinates * * Requests the untransformed co-ordinates (in ClutterUnits) for the * #ClutterActor relative to any parent. * * This function should not be called directly by applications instead * the various position/geometry methods should be used. **/ void clutter_actor_query_coords (ClutterActor *self, ClutterActorBox *box) { ClutterActorClass *klass; g_return_if_fail (CLUTTER_IS_ACTOR (self)); g_return_if_fail (box != NULL); klass = CLUTTER_ACTOR_GET_CLASS (self); box->x1 = self->priv->coords.x1; box->y1 = self->priv->coords.y1; box->x2 = self->priv->coords.x2; box->y2 = self->priv->coords.y2; if (klass->query_coords) { /* FIXME: This is kind of a cludge - we pass out *private* * co-ords down to any subclasses so they can modify * we then resync any changes. Needed for group class. * Need to figure out nicer way. */ klass->query_coords(self, box); self->priv->coords.x1 = box->x1; self->priv->coords.y1 = box->y1; self->priv->coords.x2 = box->x2; self->priv->coords.y2 = box->y2; } } static void clutter_actor_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { ClutterActor *actor; ClutterActorPrivate *priv; actor = CLUTTER_ACTOR(object); priv = actor->priv; switch (prop_id) { case PROP_X: clutter_actor_set_x (actor, g_value_get_int (value)); break; case PROP_Y: clutter_actor_set_y (actor, g_value_get_int (value)); break; case PROP_WIDTH: clutter_actor_set_width (actor, g_value_get_int (value)); break; case PROP_HEIGHT: clutter_actor_set_height (actor, g_value_get_int (value)); break; case PROP_DEPTH: clutter_actor_set_depth (actor, g_value_get_int (value)); break; case PROP_OPACITY: clutter_actor_set_opacity (actor, g_value_get_uchar (value)); break; case PROP_NAME: clutter_actor_set_name (actor, g_value_get_string (value)); break; case PROP_VISIBLE: if (g_value_get_boolean (value) == TRUE) clutter_actor_show (actor); else clutter_actor_hide (actor); break; case PROP_SCALE_X: clutter_actor_set_scalex (actor, CLUTTER_FLOAT_TO_FIXED (g_value_get_double (value)), priv->scale_y); break; case PROP_SCALE_Y: clutter_actor_set_scalex (actor, priv->scale_x, CLUTTER_FLOAT_TO_FIXED (g_value_get_double (value))); break; case PROP_CLIP: { ClutterGeometry *geom = g_value_get_boxed (value); clutter_actor_set_clip (actor, geom->x, geom->y, geom->width, geom->height); } break; case PROP_REACTIVE: clutter_actor_set_reactive (actor, g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void clutter_actor_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { ClutterActor *actor; ClutterActorPrivate *priv; actor = CLUTTER_ACTOR(object); priv = actor->priv; switch (prop_id) { case PROP_X: g_value_set_int (value, clutter_actor_get_x (actor)); break; case PROP_Y: g_value_set_int (value, clutter_actor_get_y (actor)); break; case PROP_WIDTH: g_value_set_int (value, clutter_actor_get_width (actor)); break; case PROP_HEIGHT: g_value_set_int (value, clutter_actor_get_height (actor)); break; case PROP_DEPTH: g_value_set_int (value, clutter_actor_get_depth (actor)); break; case PROP_OPACITY: g_value_set_uchar (value, priv->opacity); break; case PROP_NAME: g_value_set_string (value, priv->name); break; case PROP_VISIBLE: g_value_set_boolean (value, (CLUTTER_ACTOR_IS_VISIBLE (actor) != FALSE)); break; case PROP_HAS_CLIP: g_value_set_boolean (value, priv->has_clip); break; case PROP_CLIP: g_value_set_boxed (value, &(priv->clip)); break; case PROP_SCALE_X: g_value_set_double (value, CLUTTER_FIXED_TO_DOUBLE (priv->scale_x)); break; case PROP_SCALE_Y: g_value_set_double (value, CLUTTER_FIXED_TO_DOUBLE (priv->scale_y)); break; case PROP_REACTIVE: g_value_set_boolean (value, (CLUTTER_ACTOR_IS_REACTIVE (actor) != FALSE)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void clutter_actor_dispose (GObject *object) { ClutterActor *self = CLUTTER_ACTOR (object); CLUTTER_NOTE (MISC, "Disposing of object (id=%d) of type `%s'", self->priv->id, g_type_name (G_OBJECT_TYPE (self))); if (!(CLUTTER_PRIVATE_FLAGS (self) & CLUTTER_ACTOR_IN_DESTRUCTION)) { CLUTTER_SET_PRIVATE_FLAGS (self, CLUTTER_ACTOR_IN_DESTRUCTION); g_signal_emit (self, actor_signals[DESTROY], 0); CLUTTER_UNSET_PRIVATE_FLAGS (self, CLUTTER_ACTOR_IN_DESTRUCTION); } G_OBJECT_CLASS (clutter_actor_parent_class)->dispose (object); } static void clutter_actor_finalize (GObject *object) { ClutterActor *actor = CLUTTER_ACTOR (object); g_free (actor->priv->name); G_OBJECT_CLASS (clutter_actor_parent_class)->finalize (object); } static void clutter_actor_class_init (ClutterActorClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); object_class->set_property = clutter_actor_set_property; object_class->get_property = clutter_actor_get_property; object_class->dispose = clutter_actor_dispose; object_class->finalize = clutter_actor_finalize; g_type_class_add_private (klass, sizeof (ClutterActorPrivate)); /** * ClutterActor:x: * * X coordinate of the actor. */ g_object_class_install_property (object_class, PROP_X, g_param_spec_int ("x", "X co-ord", "X co-ord of actor", -G_MAXINT, G_MAXINT, 0, CLUTTER_PARAM_READWRITE)); /** * ClutterActor:y: * * Y coordinate of the actor. */ g_object_class_install_property (object_class, PROP_Y, g_param_spec_int ("y", "Y co-ord", "Y co-ord of actor", -G_MAXINT, G_MAXINT, 0, CLUTTER_PARAM_READWRITE)); /** * ClutterActor:width: * * Width of the actor (in pixels). */ g_object_class_install_property (object_class, PROP_WIDTH, g_param_spec_int ("width", "Width", "Width of actor in pixels", 0, G_MAXINT, 0, CLUTTER_PARAM_READWRITE)); /** * ClutterActor:height: * * Height of the actor (in pixels). */ g_object_class_install_property (object_class, PROP_HEIGHT, g_param_spec_int ("height", "Height", "Height of actor in pixels", 0, G_MAXINT, 0, CLUTTER_PARAM_READWRITE)); /** * ClutterActor:depth: * * Depth of the actor. * * Since: 0.6 */ g_object_class_install_property (object_class, PROP_DEPTH, g_param_spec_int ("depth", "Depth", "Depth of actor", -G_MAXINT, G_MAXINT, 0, CLUTTER_PARAM_READWRITE)); /** * ClutterActor:opacity: * * Opacity of the actor. */ g_object_class_install_property (object_class, PROP_OPACITY, g_param_spec_uchar ("opacity", "Opacity", "Opacity of actor", 0, 0xff, 0xff, CLUTTER_PARAM_READWRITE)); /** * ClutterActor:visible: * * Whether the actor is visible or not. */ g_object_class_install_property (object_class, PROP_VISIBLE, g_param_spec_boolean ("visible", "Visible", "Whether the actor is visible or not", FALSE, CLUTTER_PARAM_READWRITE)); /** * ClutterActor:reactive: * * Whether the actor is reactive to events or not. * * Since: 0.6 */ g_object_class_install_property (object_class, PROP_REACTIVE, g_param_spec_boolean ("reactive", "Reactive", "Whether the actor is reactive to events or not", FALSE, CLUTTER_PARAM_READWRITE)); /** * ClutterActor:has-clip: * * Whether the actor has the clip property set or not. */ g_object_class_install_property (object_class, PROP_HAS_CLIP, g_param_spec_boolean ("has-clip", "Has Clip", "Whether the actor has a clip set or not", FALSE, CLUTTER_PARAM_READABLE)); /** * ClutterActor:clip: * * The clip region for the actor. */ g_object_class_install_property (object_class, PROP_CLIP, g_param_spec_boxed ("clip", "Clip", "The clip region for the actor", CLUTTER_TYPE_GEOMETRY, CLUTTER_PARAM_READWRITE)); /** * ClutterActor:name: * * The name of the actor. * * Since: 0.2 */ g_object_class_install_property (object_class, PROP_NAME, g_param_spec_string ("name", "Name", "Name of the actor", NULL, CLUTTER_PARAM_READWRITE)); /** * ClutterActor::scale-x: * * The horizontal scale of the actor * * Since: 0.6 */ g_object_class_install_property (object_class, PROP_SCALE_X, g_param_spec_double ("scale-x", "Scale-X", "Scale X", 0.0, G_MAXDOUBLE, 1.0, CLUTTER_PARAM_READWRITE)); /** * ClutterActor::scale-y: * * The vertical scale of the actor * * Since: 0.6 */ g_object_class_install_property (object_class, PROP_SCALE_Y, g_param_spec_double ("scale-y", "Scale-Y", "Scale Y", 0.0, G_MAXDOUBLE, 1.0, CLUTTER_PARAM_READWRITE)); /** * ClutterActor::destroy: * @actor: the object which received the signal * * The ::destroy signal is emitted when an actor is destroyed, * either by direct invocation of clutter_actor_destroy() or * when the #ClutterGroup that contains the actor is destroyed. * * Since: 0.2 */ actor_signals[DESTROY] = g_signal_new ("destroy", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_CLEANUP | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, G_STRUCT_OFFSET (ClutterActorClass, destroy), NULL, NULL, clutter_marshal_VOID__VOID, G_TYPE_NONE, 0); /** * ClutterActor::show: * @actor: the object which received the signal * * The ::show signal is emitted when an actor becomes visible. * * Since: 0.2 */ actor_signals[SHOW] = g_signal_new ("show", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (ClutterActorClass, show), NULL, NULL, clutter_marshal_VOID__VOID, G_TYPE_NONE, 0); /** * ClutterActor::hide: * @actor: the object which received the signal * * The ::hide signal is emitted when an actor is no longer visible. * * Since: 0.2 */ actor_signals[HIDE] = g_signal_new ("hide", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (ClutterActorClass, hide), NULL, NULL, clutter_marshal_VOID__VOID, G_TYPE_NONE, 0); /** * ClutterActor::parent-set: * @actor: the object which received the signal * @old_parent: the previous parent of the actor, or %NULL * * This signal is emitted when the parent of the actor changes. * * Since: 0.2 */ actor_signals[PARENT_SET] = g_signal_new ("parent-set", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (ClutterActorClass, parent_set), NULL, NULL, clutter_marshal_VOID__OBJECT, G_TYPE_NONE, 1, CLUTTER_TYPE_ACTOR); /** * ClutterActor::event: * @actor: the actor which received the event * @event: a #ClutterEvent * * The ::event signal is emitted each time and event is received * by the @actor. * * Return value: %TRUE if the event has been handled by the actor, * or %FALSE to continue the emission. * * Since: 0.6 */ actor_signals[EVENT] = g_signal_new ("event", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (ClutterActorClass, event), _clutter_boolean_handled_accumulator, NULL, clutter_marshal_BOOLEAN__BOXED, G_TYPE_BOOLEAN, 1, CLUTTER_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE); /** * ClutterActor::button-press-event: * @actor: the actor which received the event * @event: a #ClutterButtonEvent * * The ::button-press-event signal is emitted each time a mouse button * is pressed on @actor. * * Return value: %TRUE if the event has been handled by the actor, * or %FALSE to continue the emission. * * Since: 0.6 */ actor_signals[BUTTON_PRESS_EVENT] = g_signal_new ("button-press-event", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (ClutterActorClass, button_press_event), _clutter_boolean_handled_accumulator, NULL, clutter_marshal_BOOLEAN__BOXED, G_TYPE_BOOLEAN, 1, CLUTTER_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE); /** * ClutterActor::button-release-event: * @actor: the actor which received the event * @event: a #ClutterButtonEvent * * The ::button-release-event signal is emitted each time a mouse button * is released on @actor. * * Return value: %TRUE if the event has been handled by the actor, * or %FALSE to continue the emission. * * Since: 0.6 */ actor_signals[BUTTON_RELEASE_EVENT] = g_signal_new ("button-release-event", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (ClutterActorClass, button_release_event), _clutter_boolean_handled_accumulator, NULL, clutter_marshal_BOOLEAN__BOXED, G_TYPE_BOOLEAN, 1, CLUTTER_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE); /** * ClutterActor::scroll-event: * @actor: the actor which received the event * @event: a #ClutterScrollEvent * * The ::scroll-event signal is emitted each time a the mouse is * scrolled on @actor * * Return value: %TRUE if the event has been handled by the actor, * or %FALSE to continue the emission. * * Since: 0.6 */ actor_signals[SCROLL_EVENT] = g_signal_new ("scroll-event", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (ClutterActorClass, scroll_event), _clutter_boolean_handled_accumulator, NULL, clutter_marshal_BOOLEAN__BOXED, G_TYPE_BOOLEAN, 1, CLUTTER_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE); /** * ClutterActor::key-press-event: * @actor: the actor which received the event * @event: a #ClutterKeyEvent * * The ::key-press-event signal is emitted each time a keyboard button * is pressed on @actor. * * Return value: %TRUE if the event has been handled by the actor, * or %FALSE to continue the emission. * * Since: 0.6 */ actor_signals[KEY_PRESS_EVENT] = g_signal_new ("key-press-event", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (ClutterActorClass, key_press_event), _clutter_boolean_handled_accumulator, NULL, clutter_marshal_BOOLEAN__BOXED, G_TYPE_BOOLEAN, 1, CLUTTER_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE); /** * ClutterActor::key-release-event: * @actor: the actor which received the event * @event: a #ClutterKeyEvent * * The ::key-release-event signal is emitted each time a keyboard button * is released on @actor. * * Return value: %TRUE if the event has been handled by the actor, * or %FALSE to continue the emission. * * Since: 0.6 */ actor_signals[KEY_RELEASE_EVENT] = g_signal_new ("key-release-event", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (ClutterActorClass, key_release_event), _clutter_boolean_handled_accumulator, NULL, clutter_marshal_BOOLEAN__BOXED, G_TYPE_BOOLEAN, 1, CLUTTER_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE); /** * ClutterActor::motion-event: * @actor: the actor which received the event * @event: a #ClutterMotionEvent * * The ::motion-event signal is emitted each time the mouse pointer is * moved on @actor. * * Return value: %TRUE if the event has been handled by the actor, * or %FALSE to continue the emission. * * Since: 0.6 */ actor_signals[MOTION_EVENT] = g_signal_new ("motion-event", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (ClutterActorClass, motion_event), _clutter_boolean_handled_accumulator, NULL, clutter_marshal_BOOLEAN__BOXED, G_TYPE_BOOLEAN, 1, CLUTTER_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE); /** * ClutterActor::focus-in: * @actor: the actor which now has key focus * * The ::focus-in signal is emitted when @actor recieves key focus. * * Since: 0.6 */ actor_signals[FOCUS_IN] = g_signal_new ("focus-in", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (ClutterActorClass, focus_in), NULL, NULL, clutter_marshal_VOID__VOID, G_TYPE_NONE, 0); /** * ClutterActor::focus-out: * @actor: the actor which now has key focus * * The ::focus-out signal is emitted when @actor loses key focus. * * Since: 0.6 */ actor_signals[FOCUS_OUT] = g_signal_new ("focus-out", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (ClutterActorClass, focus_out), NULL, NULL, clutter_marshal_VOID__VOID, G_TYPE_NONE, 0); /** * ClutterActor::enter-event: * @actor: the actor which the pointer has entered. * * The ::enter-event signal is emitted when the pointer enters the @actor * * Since: 0.6 */ actor_signals[ENTER_EVENT] = g_signal_new ("enter-event", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (ClutterActorClass, enter_event), _clutter_boolean_handled_accumulator, NULL, clutter_marshal_BOOLEAN__BOXED, G_TYPE_BOOLEAN, 1, CLUTTER_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE); /** * ClutterActor::leave-event: * @actor: the actor which the pointer has left * * The ::leave-event signal is emitted when the pointer leaves the @actor. * * Since: 0.6 */ actor_signals[LEAVE_EVENT] = g_signal_new ("leave-event", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (ClutterActorClass, leave_event), _clutter_boolean_handled_accumulator, NULL, clutter_marshal_BOOLEAN__BOXED, G_TYPE_BOOLEAN, 1, CLUTTER_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE); /** * ClutterActor::captured-event: * @actor: the actor which the pointer has left * * The ::captured-event signal is emitted when an event is captured * by Clutter. * * Since: 0.6 */ actor_signals[CAPTURED_EVENT] = g_signal_new ("captured-event", G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (ClutterActorClass, captured_event), _clutter_boolean_handled_accumulator, NULL, clutter_marshal_BOOLEAN__BOXED, G_TYPE_BOOLEAN, 1, CLUTTER_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE); klass->show = clutter_actor_real_show; klass->show_all = clutter_actor_show; klass->hide = clutter_actor_real_hide; klass->hide_all = clutter_actor_hide; klass->pick = clutter_actor_real_pick; } static void clutter_actor_init (ClutterActor *self) { ClutterActorPrivate *priv; ClutterActorBox box = { 0, }; self->priv = priv = CLUTTER_ACTOR_GET_PRIVATE (self); priv->parent_actor = NULL; priv->has_clip = FALSE; priv->opacity = 0xff; priv->id = __id++; priv->scale_x = CFX_ONE; priv->scale_y = CFX_ONE; clutter_actor_request_coords (self, &box); } /** * clutter_actor_destroy: * @self: a #ClutterActor * * Destroys an actor. When an actor is destroyed, it will break any * references it holds to other objects. If the actor is inside a * container, the actor will be removed. * * When you destroy a container its children will be destroyed as well. * * Note: you cannot destroy the #ClutterStage returned by * clutter_stage_get_default(). */ void clutter_actor_destroy (ClutterActor *self) { ClutterActorPrivate *priv; g_return_if_fail (CLUTTER_IS_ACTOR (self)); if (CLUTTER_PRIVATE_FLAGS (self) & CLUTTER_ACTOR_IS_TOPLEVEL) { g_warning ("Calling clutter_actor_destroy() on an actor of type `%s' " "is not possible. This is usually an application bug.", g_type_name (G_OBJECT_TYPE (self))); return; } priv = self->priv; if (priv->parent_actor) { ClutterActor *parent = priv->parent_actor; if (CLUTTER_IS_CONTAINER (parent)) { g_object_ref (self); clutter_container_remove_actor (CLUTTER_CONTAINER (parent), self); } else priv->parent_actor = NULL; } if (!(CLUTTER_PRIVATE_FLAGS (self) & CLUTTER_ACTOR_IN_DESTRUCTION)) g_object_run_dispose (G_OBJECT (self)); } /** * clutter_actor_queue_redraw: * @self: A #ClutterActor * * Queues up a redraw of an actor and any children. The redraw occurs * once the main loop becomes idle (after the current batch of events * has been processed, roughly). * * Applications rarely need to call this as redraws are handled automatically * by modification functions. */ void clutter_actor_queue_redraw (ClutterActor *self) { ClutterMainContext *ctx = CLUTTER_CONTEXT(); if (!ctx->update_idle) { CLUTTER_TIMESTAMP (SCHEDULER, "Adding idle source for actor: %p", self); ctx->update_idle = clutter_threads_add_idle_full (G_PRIORITY_DEFAULT + 10, redraw_update_idle, NULL, NULL); } } /** * clutter_actor_set_geometry: * @self: A #ClutterActor * @geometry: A #ClutterGeometry * * Sets the actors untransformed geometry in pixels relative to any * parent actor. */ void clutter_actor_set_geometry (ClutterActor *self, const ClutterGeometry *geometry) { ClutterActorBox box; box.x1 = CLUTTER_UNITS_FROM_INT (geometry->x); box.y1 = CLUTTER_UNITS_FROM_INT (geometry->y); box.x2 = CLUTTER_UNITS_FROM_INT (geometry->x + geometry->width); box.y2 = CLUTTER_UNITS_FROM_INT (geometry->y + geometry->height); clutter_actor_request_coords (self, &box); } /** * clutter_actor_get_geometry: * @self: A #ClutterActor * @geometry: A location to store actors #ClutterGeometry * * Gets the actors untransformed geometry in pixels relative to any * parent actor. */ void clutter_actor_get_geometry (ClutterActor *self, ClutterGeometry *geometry) { ClutterActorBox box; g_return_if_fail (CLUTTER_IS_ACTOR (self)); clutter_actor_query_coords (self, &box); geometry->x = CLUTTER_UNITS_TO_INT (box.x1); geometry->y = CLUTTER_UNITS_TO_INT (box.y1); geometry->width = CLUTTER_UNITS_TO_INT (box.x2 - box.x1); geometry->height = CLUTTER_UNITS_TO_INT (box.y2 - box.y1); } /** * clutter_actor_get_coords: * @self: A #ClutterActor * @x_1: A location to store actors left position, or %NULL. * @y_1: A location to store actors top position, or %NULL. * @x_2: A location to store actors right position, or %NULL. * @y_2: A location to store actors bottom position, or %NULL. * * Gets the actors untransformed bounding rectangle co-ordinates in pixels * relative to any parent actor. */ void clutter_actor_get_coords (ClutterActor *self, gint *x_1, gint *y_1, gint *x_2, gint *y_2) { ClutterActorBox box; g_return_if_fail (CLUTTER_IS_ACTOR (self)); clutter_actor_query_coords (self, &box); if (x_1) *x_1 = CLUTTER_UNITS_TO_INT (box.x1); if (y_1) *y_1 = CLUTTER_UNITS_TO_INT (box.y1); if (x_2) *x_2 = CLUTTER_UNITS_TO_INT (box.x2); if (y_2) *y_2 = CLUTTER_UNITS_TO_INT (box.y2); } /** * clutter_actor_set_position * @self: A #ClutterActor * @x: New left position of actor in pixels. * @y: New top position of actor in pixels. * * Sets the actors position in pixels relative to any * parent actor. */ void clutter_actor_set_position (ClutterActor *self, gint x, gint y) { ClutterActorBox box; g_return_if_fail (CLUTTER_IS_ACTOR (self)); clutter_actor_query_coords (self, &box); box.x2 += (CLUTTER_UNITS_FROM_INT (x) - box.x1); box.y2 += (CLUTTER_UNITS_FROM_INT (y) - box.y1); box.x1 = CLUTTER_UNITS_FROM_INT (x); box.y1 = CLUTTER_UNITS_FROM_INT (y); clutter_actor_request_coords (self, &box); } /** * clutter_actor_move_by * @self: A #ClutterActor * @dx: Distance to move Actor on X axis. * @dy: Distance to move Actor on Y axis. * * Moves an actor by specified distance relative to * current position in pixels. * * Since: 0.2 */ void clutter_actor_move_by (ClutterActor *self, gint dx, gint dy) { ClutterActorBox box; gint32 dxu = CLUTTER_UNITS_FROM_INT (dx); gint32 dyu = CLUTTER_UNITS_FROM_INT (dy); g_return_if_fail (CLUTTER_IS_ACTOR (self)); clutter_actor_query_coords (self, &box); box.x2 += dxu; box.y2 += dyu; box.x1 += dxu; box.y1 += dyu; clutter_actor_request_coords (self, &box); } /* local inline version, without type checking to be used by * set_width() and set_height(). if one of the dimensions is < 0 * it will not be changed */ static inline void clutter_actor_set_size_internal (ClutterActor *self, gint width, gint height) { ClutterActorBox box; clutter_actor_query_coords (self, &box); if (width > 0) box.x2 = box.x1 + CLUTTER_UNITS_FROM_INT (width); if (height > 0) box.y2 = box.y1 + CLUTTER_UNITS_FROM_INT (height); clutter_actor_request_coords (self, &box); } /** * clutter_actor_set_size * @self: A #ClutterActor * @width: New width of actor in pixels, or -1 * @height: New height of actor in pixels, or -1 * * Sets the actors size in pixels. If @width and/or @height are -1 the * actor will assume the same size of its bounding box. */ void clutter_actor_set_size (ClutterActor *self, gint width, gint height) { g_return_if_fail (CLUTTER_IS_ACTOR (self)); clutter_actor_set_size_internal (self, width, height); } /** * clutter_actor_get_size: * @self: A #ClutterActor * @width: Location to store width if non NULL. * @height: Location to store height if non NULL. * * Gets the size of an actor in pixels ignoring any scaling factors. * * Since: 0.2 */ void clutter_actor_get_size (ClutterActor *self, guint *width, guint *height) { ClutterActorBox box; g_return_if_fail (CLUTTER_IS_ACTOR (self)); clutter_actor_query_coords (self, &box); if (width) *width = CLUTTER_UNITS_TO_INT (box.x2 - box.x1); if (height) *height = CLUTTER_UNITS_TO_INT (box.y2 - box.y1); } /** * clutter_actor_get_position: * @self: a #ClutterActor * @x: return location for the X coordinate, or %NULL * @y: return location for the Y coordinate, or %NULL * * Retrieves the position of an actor. * * Since: 0.6 */ void clutter_actor_get_position (ClutterActor *self, gint *x, gint *y) { ClutterActorBox box = { 0, }; g_return_if_fail (CLUTTER_IS_ACTOR (self)); clutter_actor_query_coords (self, &box); if (x) *x = CLUTTER_UNITS_TO_INT (box.x1); if (y) *y = CLUTTER_UNITS_TO_INT (box.y1); } /* * clutter_actor_get_abs_position_units * @self: A #ClutterActor * @x: Location to store x position if non NULL. * @y: Location to store y position if non NULL. * * Gets the absolute position of an actor in clutter units relative * to the stage. * * Since: 0.4 */ static void clutter_actor_get_abs_position_units (ClutterActor *self, gint32 *x, gint32 *y) { ClutterVertex v1; ClutterVertex v2; g_return_if_fail (CLUTTER_IS_ACTOR (self)); v1.x = v1.y = v1.z = 0; clutter_actor_apply_transform_to_point (self, &v1, &v2); if (x) *x = v2.x; if (y) *y = v2.y; } /** * clutter_actor_get_abs_position * @self: A #ClutterActor * @x: Location to store x position if non NULL. * @y: Location to store y position if non NULL. * * Gets the absolute position of an actor in pixels relative * to the stage. */ void clutter_actor_get_abs_position (ClutterActor *self, gint *x, gint *y) { ClutterUnit xu, yu; g_return_if_fail (CLUTTER_IS_ACTOR (self)); xu = yu = 0; clutter_actor_get_abs_position_units (self, &xu, &yu); if (x) *x = CLUTTER_UNITS_TO_INT (xu); if (y) *y = CLUTTER_UNITS_TO_INT (yu); } /* * clutter_actor_get_abs_size_units: * @self: A #ClutterActor * @width: Location to store width if non NULL. * @height: Location to store height if non NULL. * * Gets the absolute size of an actor in clutter units taking into account * an scaling factors. * * Note: When the actor (or one of its ancestors) is rotated around the x or y * axis, it no longer appears as on the stage as a rectangle, but as a generic * quadrangle; in that case this function returns the size of the smallest * rectangle that encapsulates the entire quad. Please note that in this case * no assumptions can be made about the relative position of this envelope to * the absolute position of the actor, as returned by * clutter_actor_get_abs_position() - if you need this information, you need * to use clutter_actor_get_vertices() to get the coords of the actual * quadrangle. * * Since: 0.4 */ static void clutter_actor_get_abs_size_units (ClutterActor *self, gint32 *width, gint32 *height) { ClutterVertex v[4]; ClutterFixed x_min, x_max, y_min, y_max; gint i; clutter_actor_get_vertices (self, v); x_min = x_max = v[0].x; y_min = y_max = v[0].y; for (i = 1; i < sizeof(v)/sizeof(v[0]); ++i) { if (v[i].x < x_min) x_min = v[i].x; if (v[i].x > x_max) x_max = v[i].x; if (v[i].y < y_min) y_min = v[i].y; if (v[i].y > y_max) y_max = v[i].y; } *width = x_max - x_min; *height = y_max - y_min; } /** * clutter_actor_get_abs_size: * @self: A #ClutterActor * @width: Location to store width if non NULL. * @height: Location to store height if non NULL. * * Gets the absolute size of an actor taking into account * an scaling factors */ void clutter_actor_get_abs_size (ClutterActor *self, guint *width, guint *height) { gint32 wu, hu; clutter_actor_get_abs_size_units (self, &wu, &hu); *width = CLUTTER_UNITS_TO_INT (wu); *height = CLUTTER_UNITS_TO_INT (hu); } /** * clutter_actor_get_width * @self: A #ClutterActor * * Retrieves the actors width ignoring any scaling factors. * * Return value: The actor width in pixels **/ guint clutter_actor_get_width (ClutterActor *self) { ClutterActorBox box; g_return_val_if_fail (CLUTTER_IS_ACTOR (self), 0); clutter_actor_query_coords (self, &box); return CLUTTER_UNITS_TO_INT (box.x2 - box.x1); } /** * clutter_actor_get_height * @self: A #ClutterActor * * Retrieves the actors height ignoring any scaling factors. * * Return value: The actor height in pixels **/ guint clutter_actor_get_height (ClutterActor *self) { ClutterActorBox box; g_return_val_if_fail (CLUTTER_IS_ACTOR (self), 0); clutter_actor_query_coords (self, &box); return CLUTTER_UNITS_TO_INT (box.y2 - box.y1); } /** * clutter_actor_set_width * @self: A #ClutterActor * @width: Requested new width for actor * * Requests a new width for actor * * since: 2.0 **/ void clutter_actor_set_width (ClutterActor *self, guint width) { g_return_if_fail (CLUTTER_IS_ACTOR (self)); clutter_actor_set_size_internal (self, width, -1); } /** * clutter_actor_set_height * @self: A #ClutterActor * @height: Requested new height for actor * * Requests a new height for actor * * since: 2.0 **/ void clutter_actor_set_height (ClutterActor *self, guint height) { g_return_if_fail (CLUTTER_IS_ACTOR (self)); clutter_actor_set_size_internal (self, -1, height); } /** * clutter_actor_set_x: * @self: a #ClutterActor * @x: the actors position on the X axis * * Sets the actor's x position relative to its parent. * * Since: 0.6 */ void clutter_actor_set_x (ClutterActor *self, gint x) { g_return_if_fail (CLUTTER_IS_ACTOR (self)); clutter_actor_set_position (self, x, clutter_actor_get_y (self)); } /** * clutter_actor_set_y: * @self: a #ClutterActor * @y: the actors position on the Y axis * * Sets the actor's y position relative to its parent. * * Since: 0.6 */ void clutter_actor_set_y (ClutterActor *self, gint y) { g_return_if_fail (CLUTTER_IS_ACTOR (self)); clutter_actor_set_position (self, clutter_actor_get_x (self), y); } /** * clutter_actor_get_x * @self: A #ClutterActor * * Retrieves the actors x position relative to any parent. * * Return value: The actor x position in pixels ignoring any tranforms * (i.e scaling, rotation). **/ gint clutter_actor_get_x (ClutterActor *self) { ClutterActorBox box; g_return_val_if_fail (CLUTTER_IS_ACTOR (self), 0); clutter_actor_query_coords (self, &box); return CLUTTER_UNITS_TO_INT (box.x1); } /** * clutter_actor_get_y: * @self: A #ClutterActor * * Retrieves the actors y position relative to any parent. * * Return value: The actor y position in pixels ignoring any tranforms * (i.e scaling, rotation). **/ gint clutter_actor_get_y (ClutterActor *self) { ClutterActorBox box; g_return_val_if_fail (CLUTTER_IS_ACTOR (self), 0); clutter_actor_query_coords (self, &box); return CLUTTER_UNITS_TO_INT (box.y1); } /** * clutter_actor_set_scalex: * @self: A #ClutterActor * @scale_x: #ClutterFixed factor to scale actor by horizontally. * @scale_y: #ClutterFixed factor to scale actor by vertically. * * Scales an actor with fixed point parameters. */ void clutter_actor_set_scalex (ClutterActor *self, ClutterFixed scale_x, ClutterFixed scale_y) { g_return_if_fail (CLUTTER_IS_ACTOR (self)); g_object_ref (self); g_object_freeze_notify (G_OBJECT (self)); self->priv->scale_x = scale_x; g_object_notify (G_OBJECT (self), "scale-x"); self->priv->scale_y = scale_y; g_object_notify (G_OBJECT (self), "scale-y"); g_object_thaw_notify (G_OBJECT (self)); g_object_unref (self); if (CLUTTER_ACTOR_IS_VISIBLE (self)) clutter_actor_queue_redraw (self); } /** * clutter_actor_set_scale: * @self: A #ClutterActor * @scale_x: double factor to scale actor by horizontally. * @scale_y: double factor to scale actor by vertically. * * Scales an actor with floating point parameters. * * Since: 0.2 */ void clutter_actor_set_scale (ClutterActor *self, double scale_x, double scale_y) { g_return_if_fail (CLUTTER_IS_ACTOR (self)); clutter_actor_set_scalex (self, CLUTTER_FLOAT_TO_FIXED (scale_x), CLUTTER_FLOAT_TO_FIXED (scale_y)); } /** * clutter_actor_get_scalex: * @self: A #ClutterActor * @scale_x: Location to store horizonal fixed scale factor if non NULL. * @scale_y: Location to store vertical fixed scale factor if non NULL. * * Retrieves an actors scale in fixed point. * * Since: 0.2 */ void clutter_actor_get_scalex (ClutterActor *self, ClutterFixed *scale_x, ClutterFixed *scale_y) { if (scale_x) *scale_x = self->priv->scale_x; if (scale_y) *scale_y = self->priv->scale_y; } /** * clutter_actor_get_scale: * @self: A #ClutterActor * @scale_x: Location to store horizonal float scale factor if non NULL. * @scale_y: Location to store vertical float scale factor if non NULL. * * Retrieves an actors scale in floating point. * * Since: 0.2 */ void clutter_actor_get_scale (ClutterActor *self, gdouble *scale_x, gdouble *scale_y) { if (scale_x) *scale_x = CLUTTER_FIXED_TO_FLOAT (self->priv->scale_x); if (scale_y) *scale_y = CLUTTER_FIXED_TO_FLOAT (self->priv->scale_y); } /** * clutter_actor_set_scale_with_gravity: * @self: A #ClutterActor * @scale_x: scaling factor for x axis * @scale_y: scaling factor for y axis * @gravity: #ClutterGravity to apply to scaling. * * Scales the actor by scale_x, scale_y taking into consideration the * required gravity. * * Since: 0.4 */ void clutter_actor_set_scale_with_gravity (ClutterActor *self, gfloat scale_x, gfloat scale_y, ClutterGravity gravity) { clutter_actor_set_scale_with_gravityx (self, CLUTTER_FLOAT_TO_FIXED (scale_x), CLUTTER_FLOAT_TO_FIXED (scale_y), gravity); } /** * clutter_actor_set_scale_with_gravityx: * @self: A #ClutterActor * @scale_x: #ClutterFixed scaling factor for x axis * @scale_y: #ClutterFixed scaling factor for y axis * @gravity: #ClutterGravity to apply to scaling. * * Scales the actor by scale_x, scale_y taking into consideration the * required gravity. * * Since: 0.4 */ void clutter_actor_set_scale_with_gravityx (ClutterActor *self, ClutterFixed scale_x, ClutterFixed scale_y, ClutterGravity gravity) { ClutterActorBox box; ClutterFixed sw, sh, w, h, x, y; ClutterFixed old_scale_x, old_scale_y; clutter_actor_get_scalex (self, &old_scale_x, &old_scale_y); clutter_actor_set_scalex (self, scale_x, scale_y); if (gravity == CLUTTER_GRAVITY_NONE || gravity == CLUTTER_GRAVITY_NORTH_WEST) return; clutter_actor_query_coords (self, &box); w = CFX_QMUL (box.x2 - box.x1, old_scale_x); h = CFX_QMUL (box.y2 - box.y1, old_scale_y); sw = CFX_QMUL (box.x2 - box.x1, scale_x); sh = CFX_QMUL (box.y2 - box.y1, scale_y); x = box.x1; y = box.y1; switch (gravity) { case CLUTTER_GRAVITY_NORTH: x = x - ((sw - w) / 2); break; case CLUTTER_GRAVITY_NORTH_EAST: x = x + w - sw; break; case CLUTTER_GRAVITY_EAST: x = x + w - sw; y = y - ((sh - h) / 2); break; case CLUTTER_GRAVITY_SOUTH_EAST: x = x + w - sw; y = y + h - sh; break; case CLUTTER_GRAVITY_SOUTH: x = x - ((sw - w) / 2); y = y + h - sh; break; case CLUTTER_GRAVITY_SOUTH_WEST: y = y + h - sh; break; case CLUTTER_GRAVITY_WEST: y = y - ((sh - h) / 2); break; case CLUTTER_GRAVITY_CENTER: x = x - ((sw - w) / 2); y = y - ((sh - h) / 2); default: break; } box.x2 += (x - box.x1); box.y2 += (y - box.y1); box.x1 = x; box.y1 = y; clutter_actor_request_coords (self, &box); } /** * clutter_actor_set_opacity: * @self: A #ClutterActor * @opacity: New opacity value for actor. * * Sets the actors opacity, with zero being completely transparent. */ void clutter_actor_set_opacity (ClutterActor *self, guint8 opacity) { g_return_if_fail (CLUTTER_IS_ACTOR (self)); self->priv->opacity = opacity; if (CLUTTER_ACTOR_IS_VISIBLE (self)) clutter_actor_queue_redraw (self); } /** * clutter_actor_get_opacity: * @self: A #ClutterActor * * Retrieves the actors opacity. * * Return value: The actor opacity value. */ guint8 clutter_actor_get_opacity (ClutterActor *self) { ClutterActor *parent; g_return_val_if_fail (CLUTTER_IS_ACTOR (self), 0); parent = self->priv->parent_actor; /* Factor in the actual actors opacity with parents */ if (parent && clutter_actor_get_opacity (parent) != 0xff) return (clutter_actor_get_opacity(parent) * self->priv->opacity) / 0xff; return self->priv->opacity; } /** * clutter_actor_set_name: * @self: A #ClutterActor * @name: Textual tag to apply to actor * * Sets a textual tag to the actor. */ void clutter_actor_set_name (ClutterActor *self, const gchar *name) { g_return_if_fail (CLUTTER_IS_ACTOR (self)); g_object_ref (self); g_free (self->priv->name); if (name && name[0] != '\0') self->priv->name = g_strdup(name); g_object_notify (G_OBJECT (self), "name"); g_object_unref (self); } /** * clutter_actor_get_name: * @self: A #ClutterActor * * Retrieves the name of @self. * * Return value: pointer to textual tag for the actor. The * returned string is owned by the actor and should not * be modified or freed. */ G_CONST_RETURN gchar * clutter_actor_get_name (ClutterActor *self) { g_return_val_if_fail (CLUTTER_IS_ACTOR (self), NULL); return self->priv->name; } /** * clutter_actor_get_gid: * @self: A #ClutterActor * * Retrieves the unique id for @self. * * Return value: Globally unique value for object instance. * * Since: 0.6 */ guint32 clutter_actor_get_gid (ClutterActor *self) { g_return_val_if_fail (CLUTTER_IS_ACTOR (self), 0); return self->priv->id; } /** * clutter_actor_set_depth: * @self: a #ClutterActor * @depth: Z co-ord * * Sets the Z co-ordinate of @self to @depth. The Units of which are dependant * on the perspective setup. */ void clutter_actor_set_depth (ClutterActor *self, gint depth) { ClutterActorPrivate *priv; g_return_if_fail (CLUTTER_IS_ACTOR (self)); priv = self->priv; if (priv->z != depth) { /* Sets Z value. - FIXME: should invert ?*/ priv->z = depth; if (priv->parent_actor && CLUTTER_IS_CONTAINER (priv->parent_actor)) { ClutterContainer *parent; /* We need to resort the container stacking order as to * correctly render alpha values. * * FIXME: This is sub optimal. maybe queue the the sort * before stacking */ parent = CLUTTER_CONTAINER (priv->parent_actor); clutter_container_sort_depth_order (parent); } if (CLUTTER_ACTOR_IS_VISIBLE (self)) clutter_actor_queue_redraw (self); g_object_notify (G_OBJECT (self), "depth"); } } /** * clutter_actor_get_depth: * @self: a #ClutterActor * * Retrieves the depth of @self. * * Return value: the depth of a #ClutterActor */ gint clutter_actor_get_depth (ClutterActor *self) { g_return_val_if_fail (CLUTTER_IS_ACTOR (self), -1); return self->priv->z; } /** * clutter_actor_set_rotationx: * @self: a #ClutterActor * @axis: the axis of rotation * @angle: the angle of rotation * @x: X coordinate of the rotation center * @y: Y coordinate of the rotation center * @z: Z coordinate of the rotation center * * Sets the rotation angle of @self around the given axis. * * This function is the fixed point variant of clutter_actor_set_rotation(). * * Since: 0.6 */ void clutter_actor_set_rotationx (ClutterActor *self, ClutterRotateAxis axis, ClutterFixed angle, gint x, gint y, gint z) { ClutterActorPrivate *priv; g_return_if_fail (CLUTTER_IS_ACTOR (self)); priv = self->priv; switch (axis) { case CLUTTER_X_AXIS: priv->rxang = angle; priv->rxy = y; priv->rxz = z; break; case CLUTTER_Y_AXIS: priv->ryang = angle; priv->ryx = x; priv->ryz = z; break; case CLUTTER_Z_AXIS: priv->rzang = angle; priv->rzx = x; priv->rzy = y; break; } if (CLUTTER_ACTOR_IS_VISIBLE (self)) clutter_actor_queue_redraw (self); } /** * clutter_actor_set_rotation: * @self: a #ClutterActor * @axis: the axis of rotation * @angle: the angle of rotation * @x: X coordinate of the rotation center * @y: Y coordinate of the rotation center * @z: Z coordinate of the rotation center * * Sets the rotation angle of @self around the given axis. * * The rotation center coordinates depend on the value of @axis: * * %CLUTTER_X_AXIS requires @y and @z * %CLUTTER_Y_AXIS requires @x and @z * %CLUTTER_Z_AXIS requires @x and @y * * * Since: 0.6 */ void clutter_actor_set_rotation (ClutterActor *self, ClutterRotateAxis axis, gdouble angle, gint x, gint y, gint z) { g_return_if_fail (CLUTTER_IS_ACTOR (self)); clutter_actor_set_rotationx (self, axis, CLUTTER_FLOAT_TO_FIXED (angle), x, y, z); } /** * clutter_actor_get_rotationx: * @self: a #ClutterActor * @axis: the axis of rotation * @x: return value for the X coordinate of the center of rotation * @y: return value for the Y coordinate of the center of rotation * @z: return value for the Z coordinate of the center of rotation * * Retrieves the angle and center of rotation on the given axis, * set using clutter_actor_set_rotation(). * * This function is the fixed point variant of clutter_actor_get_rotation(). * * Return value: the angle of rotation as a fixed point value. * * Since: 0.6 */ ClutterFixed clutter_actor_get_rotationx (ClutterActor *self, ClutterRotateAxis axis, gint *x, gint *y, gint *z) { ClutterActorPrivate *priv; ClutterFixed retval = 0; g_return_val_if_fail (CLUTTER_IS_ACTOR (self), 0); priv = self->priv; switch (axis) { case CLUTTER_X_AXIS: retval = priv->rxang; if (y) *y = priv->rxy; if (z) *z = priv->rxz; break; case CLUTTER_Y_AXIS: retval = priv->ryang; if (x) *x = priv->ryx; if (z) *z = priv->ryz; break; case CLUTTER_Z_AXIS: retval = priv->rzang; if (x) *x = priv->rzx; if (y) *y = priv->rzy; break; } return retval; } /** * clutter_actor_get_rotation: * @self: a #ClutterActor * @axis: the axis of rotation * @x: return value for the X coordinate of the center of rotation * @y: return value for the Y coordinate of the center of rotation * @z: return value for the Z coordinate of the center of rotation * * Retrieves the angle and center of rotation on the given axis, * set using clutter_actor_set_angle(). * * The coordinates of the center depend on the axis used. * * Return value: the angle of rotation. * * Since: 0.6 */ gdouble clutter_actor_get_rotation (ClutterActor *self, ClutterRotateAxis axis, gint *x, gint *y, gint *z) { g_return_val_if_fail (CLUTTER_IS_ACTOR (self), 0.0); return CLUTTER_FIXED_TO_FLOAT (clutter_actor_get_rotationx (self, axis, x, y, z)); } /** * clutter_actor_set_clip: * @self: A #ClutterActor * @xoff: X offset of the clip rectangle * @yoff: Y offset of the clip rectangle * @width: Width of the clip rectangle * @height: Height of the clip rectangle * * Sets clip area in pixels for @self. */ void clutter_actor_set_clip (ClutterActor *self, gint xoff, gint yoff, gint width, gint height) { ClutterGeometry *clip; g_return_if_fail (CLUTTER_IS_ACTOR (self)); clip = &(self->priv->clip); clip->x = xoff; clip->y = yoff; clip->width = width; clip->height = height; self->priv->has_clip = TRUE; g_object_notify (G_OBJECT (self), "has-clip"); g_object_notify (G_OBJECT (self), "clip"); } /** * clutter_actor_remove_clip * @self: A #ClutterActor * * Removes clip area in pixels from @self. */ void clutter_actor_remove_clip (ClutterActor *self) { g_return_if_fail (CLUTTER_IS_ACTOR (self)); self->priv->has_clip = FALSE; g_object_notify (G_OBJECT (self), "has-clip"); } /** * clutter_actor_has_clip: * @self: a #ClutterActor * * Gets whether the actor has a clip set or not. * * Return value: %TRUE if the actor has a clip set. * * Since: 0.1.1 */ gboolean clutter_actor_has_clip (ClutterActor *self) { g_return_val_if_fail (CLUTTER_IS_ACTOR (self), FALSE); return self->priv->has_clip; } /** * clutter_actor_get_clip: * @self: a #ClutterActor * @xoff: return location for the X offset of the clip rectangle, or %NULL * @yoff: return location for the Y offset of the clip rectangle, or %NULL * @width: return location for the width of the clip rectangle, or %NULL * @height: return location for the height of the clip rectangle, or %NULL * * Gets the clip area for @self, in pixels. * * Since: 0.6 */ void clutter_actor_get_clip (ClutterActor *self, gint *xoff, gint *yoff, gint *width, gint *height) { ClutterActorPrivate *priv; ClutterGeometry clip = { 0, }; g_return_if_fail (CLUTTER_IS_ACTOR (self)); priv = self->priv; if (!priv->has_clip) return; clip = priv->clip; if (xoff) *xoff = clip.x; if (yoff) *yoff = clip.y; if (width) *width = clip.width; if (height) *height = clip.height; } /** * clutter_actor_set_parent: * @self: A #ClutterActor * @parent: A new #ClutterActor parent * * Sets the parent of @self to @parent. The opposite function is * clutter_actor_unparent(). * * This function should not be used by applications but by custom * 'composite' actor sub classes. */ void clutter_actor_set_parent (ClutterActor *self, ClutterActor *parent) { ClutterMainContext *clutter_context; clutter_context = clutter_context_get_default (); g_return_if_fail (CLUTTER_IS_ACTOR (self)); g_return_if_fail (CLUTTER_IS_ACTOR (parent)); g_return_if_fail (self != parent); g_return_if_fail (clutter_context != NULL); if (self->priv->parent_actor != NULL) { g_warning ("Cannot set a parent on an actor which has a parent.\n" "You must use clutter_actor_unparent() first.\n"); return; } if (CLUTTER_PRIVATE_FLAGS (self) & CLUTTER_ACTOR_IS_TOPLEVEL) { g_warning ("Cannot set a parent on a toplevel actor\n"); return; } g_hash_table_insert (clutter_context->actor_hash, GUINT_TO_POINTER (clutter_actor_get_gid (self)), (gpointer)self); g_object_ref_sink (self); self->priv->parent_actor = parent; g_signal_emit (self, actor_signals[PARENT_SET], 0, NULL); if (CLUTTER_ACTOR_IS_REALIZED (self->priv->parent_actor)) clutter_actor_realize (self); if (CLUTTER_ACTOR_IS_VISIBLE (self->priv->parent_actor) && CLUTTER_ACTOR_IS_VISIBLE (self)) { clutter_actor_queue_redraw (self); } } /** * clutter_actor_get_parent: * @self: A #ClutterActor * * Retrieves the parent of @self. * * Return Value: The #ClutterActor parent or NULL */ ClutterActor * clutter_actor_get_parent (ClutterActor *self) { g_return_val_if_fail (CLUTTER_IS_ACTOR (self), NULL); return self->priv->parent_actor; } /** * clutter_actor_unparent: * @self: a #ClutterActor * * This function should not be used in applications. It should be called by * implementations of container actors, to dissociate a child from the * container. * * Since: 0.1.1 */ void clutter_actor_unparent (ClutterActor *self) { ClutterActor *old_parent; ClutterMainContext *clutter_context; clutter_context = clutter_context_get_default (); g_return_if_fail (CLUTTER_IS_ACTOR (self)); g_return_if_fail (clutter_context != NULL); if (self->priv->parent_actor == NULL) return; /* just hide the actor if we are reparenting it */ if (CLUTTER_ACTOR_IS_REALIZED (self)) { if (CLUTTER_PRIVATE_FLAGS (self) & CLUTTER_ACTOR_IN_REPARENT) clutter_actor_hide (self); else clutter_actor_unrealize (self); } old_parent = self->priv->parent_actor; self->priv->parent_actor = NULL; g_signal_emit (self, actor_signals[PARENT_SET], 0, old_parent); g_hash_table_remove (clutter_context->actor_hash, GUINT_TO_POINTER (clutter_actor_get_gid (self))); g_object_unref (self); } /** * clutter_actor_reparent: * @self: a #ClutterActor * @new_parent: the new #ClutterActor parent * * This function resets the parent actor of @self. It is * logically equivalent to calling clutter_actory_unparent() * and clutter_actor_set_parent(). * * Since: 0.2 */ void clutter_actor_reparent (ClutterActor *self, ClutterActor *new_parent) { ClutterActorPrivate *priv; g_return_if_fail (CLUTTER_IS_ACTOR (self)); g_return_if_fail (CLUTTER_IS_ACTOR (new_parent)); g_return_if_fail (self != new_parent); if (CLUTTER_PRIVATE_FLAGS (self) & CLUTTER_ACTOR_IS_TOPLEVEL) { g_warning ("Cannot set a parent on a toplevel actor\n"); return; } priv = self->priv; if (priv->parent_actor != new_parent) { ClutterActor *old_parent; /* if the actor and the parent have already been realized, * mark the actor as reparenting, so that clutter_actor_unparent() * just hides the actor instead of unrealize it. */ if (CLUTTER_ACTOR_IS_REALIZED (self) && CLUTTER_ACTOR_IS_REALIZED (new_parent)) { CLUTTER_SET_PRIVATE_FLAGS (self, CLUTTER_ACTOR_IN_REPARENT); } old_parent = priv->parent_actor; g_object_ref (self); /* FIXME: below assumes only containers can reparent */ if (CLUTTER_IS_CONTAINER (priv->parent_actor)) clutter_container_remove_actor (CLUTTER_CONTAINER (priv->parent_actor), self); else priv->parent_actor = NULL; if (CLUTTER_IS_CONTAINER (new_parent)) clutter_container_add_actor (CLUTTER_CONTAINER (new_parent), self); else priv->parent_actor = new_parent; g_object_unref (self); if (CLUTTER_PRIVATE_FLAGS (self) & CLUTTER_ACTOR_IN_REPARENT) { CLUTTER_UNSET_PRIVATE_FLAGS (self, CLUTTER_ACTOR_IN_REPARENT); clutter_actor_queue_redraw (self); } } } /** * clutter_actor_raise: * @self: A #ClutterActor * @below: A #ClutterActor to raise above. * * Puts @self above @below. * Both actors must have the same parent. */ void clutter_actor_raise (ClutterActor *self, ClutterActor *below) { ClutterActor *parent; g_return_if_fail (CLUTTER_IS_ACTOR (self)); parent = clutter_actor_get_parent (self); if (!parent) { g_warning ("Actor of type %s is not inside a container", g_type_name (G_OBJECT_TYPE (self))); return; } if (below) { if (parent != clutter_actor_get_parent (below)) { g_warning ("Actor of type %s is not in the same " "container of actor of type %s", g_type_name (G_OBJECT_TYPE (self)), g_type_name (G_OBJECT_TYPE (below))); return; } } clutter_container_raise_child (CLUTTER_CONTAINER (parent), self, below); } /** * clutter_actor_lower: * @self: A #ClutterActor * @above: A #ClutterActor to lower below * * Puts @self below @above. * Both actors must have the same parent. */ void clutter_actor_lower (ClutterActor *self, ClutterActor *above) { ClutterActor *parent; g_return_if_fail (CLUTTER_IS_ACTOR(self)); parent = clutter_actor_get_parent (self); if (!parent) { g_warning ("Actor of type %s is not inside a container", g_type_name (G_OBJECT_TYPE (self))); return; } if (above) { if (parent != clutter_actor_get_parent (above)) { g_warning ("Actor of type %s is not in the same " "container of actor of type %s", g_type_name (G_OBJECT_TYPE (self)), g_type_name (G_OBJECT_TYPE (above))); return; } } clutter_container_lower_child (CLUTTER_CONTAINER (parent), self, above); } /** * clutter_actor_raise_top: * @self: A #ClutterActor * * Raises @self to the top. */ void clutter_actor_raise_top (ClutterActor *self) { clutter_actor_raise (self, NULL); } /** * clutter_actor_lower_bottom: * @self: A #ClutterActor * * Lowers @self to the bottom. */ void clutter_actor_lower_bottom (ClutterActor *self) { clutter_actor_lower (self, NULL); } /* * Event handling */ /** * clutter_actor_event: * @actor: a #ClutterActor * @event: a #ClutterEvent * @capture: TRUE if event in in capture phase, FALSE otherwise. * * This function is used to emit an event on the main stage. * You should rarely need to use this function, except for * synthetising events. * * Return value: the return value from the signal emission: %TRUE * if the actor handled the event, or %FALSE if the event was * not handled * * Since: 0.6 */ gboolean clutter_actor_event (ClutterActor *actor, ClutterEvent *event, gboolean capture) { gboolean retval = FALSE; gint signal_num = -1; g_return_val_if_fail (CLUTTER_IS_ACTOR (actor), FALSE); g_return_val_if_fail (event != NULL, FALSE); g_object_ref (actor); if (capture) { g_signal_emit (actor, actor_signals[CAPTURED_EVENT], 0, event, &retval); goto out; } g_signal_emit (actor, actor_signals[EVENT], 0, event, &retval); if (!retval) { switch (event->type) { case CLUTTER_NOTHING: break; case CLUTTER_BUTTON_PRESS: signal_num = BUTTON_PRESS_EVENT; break; case CLUTTER_BUTTON_RELEASE: signal_num = BUTTON_RELEASE_EVENT; break; case CLUTTER_SCROLL: signal_num = SCROLL_EVENT; break; case CLUTTER_KEY_PRESS: signal_num = KEY_PRESS_EVENT; break; case CLUTTER_KEY_RELEASE: signal_num = KEY_RELEASE_EVENT; break; case CLUTTER_MOTION: signal_num = MOTION_EVENT; break; case CLUTTER_ENTER: signal_num = ENTER_EVENT; break; case CLUTTER_LEAVE: signal_num = LEAVE_EVENT; break; case CLUTTER_DELETE: case CLUTTER_DESTROY_NOTIFY: case CLUTTER_CLIENT_MESSAGE: default: signal_num = -1; break; } if (signal_num != -1) g_signal_emit (actor, actor_signals[signal_num], 0, event, &retval); } out: g_object_unref (actor); return retval; } /** * clutter_actor_set_reactive: * @actor: a #ClutterActor * @reactive: whether the actor should be reactive to events * * Sets @actor as reactive. Reactive actors will receive events. * * Since: 0.6 */ void clutter_actor_set_reactive (ClutterActor *actor, gboolean reactive) { g_return_if_fail (CLUTTER_IS_ACTOR (actor)); if (reactive == CLUTTER_ACTOR_IS_REACTIVE (actor)) return; if (reactive) CLUTTER_ACTOR_SET_FLAGS (actor, CLUTTER_ACTOR_REACTIVE); else CLUTTER_ACTOR_UNSET_FLAGS (actor, CLUTTER_ACTOR_REACTIVE); } /** * clutter_actor_get_reactive: * @actor: a #ClutterActor * * Checks whether @actor is marked as reactive. * * Return value: %TRUE if the actor is reactive * * Since: 0.6 */ gboolean clutter_actor_get_reactive (ClutterActor *actor) { g_return_val_if_fail (CLUTTER_IS_ACTOR (actor), FALSE); return CLUTTER_ACTOR_IS_REACTIVE (actor); } /* * ClutterGeometry */ static ClutterGeometry* clutter_geometry_copy (const ClutterGeometry *geometry) { ClutterGeometry *result = g_slice_new (ClutterGeometry); *result = *geometry; return result; } static void clutter_geometry_free (ClutterGeometry *geometry) { if (G_LIKELY (geometry)) g_slice_free (ClutterGeometry, geometry); } GType clutter_geometry_get_type (void) { static GType our_type = 0; if (our_type == 0) our_type = g_boxed_type_register_static (g_intern_static_string ("ClutterGeometry"), (GBoxedCopyFunc) clutter_geometry_copy, (GBoxedFreeFunc) clutter_geometry_free); return our_type; } /* * ClutterVertices */ static ClutterVertex * clutter_vertex_copy (const ClutterVertex *vertex) { ClutterVertex *result = g_slice_new (ClutterVertex); *result = *vertex; return result; } static void clutter_vertex_free (ClutterVertex *vertex) { if (G_UNLIKELY (vertex)) g_slice_free (ClutterVertex, vertex); } GType clutter_vertex_get_type (void) { static GType our_type = 0; if (our_type == 0) our_type = g_boxed_type_register_static (g_intern_static_string ("ClutterVertex"), (GBoxedCopyFunc) clutter_vertex_copy, (GBoxedFreeFunc) clutter_vertex_free); return our_type; } /* * ClutterActorBox */ static ClutterActorBox * clutter_actor_box_copy (const ClutterActorBox *box) { ClutterActorBox *result = g_slice_new (ClutterActorBox); *result = *box; return result; } static void clutter_actor_box_free (ClutterActorBox *box) { if (G_LIKELY (box)) g_slice_free (ClutterActorBox, box); } GType clutter_actor_box_get_type (void) { static GType our_type = 0; if (our_type == 0) our_type = g_boxed_type_register_static (g_intern_static_string ("ClutterActorBox"), (GBoxedCopyFunc) clutter_actor_box_copy, (GBoxedFreeFunc) clutter_actor_box_free); return our_type; }