mirror of
https://github.com/brl/mutter.git
synced 2024-11-27 02:20:43 -05:00
9955b06542
* clutter/clutter-actor.c:: * clutter/clutter-behaviour-opacity.c: * clutter/clutter-clone-texture.c: * clutter/clutter-effect.c: * clutter/clutter-label.c: Remove the usage of G_PARAM_CONSTRUCT without an override for the ::construct virtual function; using G_PARAM_CONSTRUCT to set the default value of a property is not the recommended approach; default values are set inside the instance init function.
425 lines
11 KiB
C
425 lines
11 KiB
C
/*
|
|
* Clutter.
|
|
*
|
|
* An OpenGL based 'interactive canvas' library.
|
|
*
|
|
* Authored By Matthew Allum <mallum@openedhand.com>
|
|
*
|
|
* 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-clone-texture
|
|
* @short_description: Actor for cloning existing textures in an
|
|
* efficient way.
|
|
*
|
|
* #ClutterCloneTexture allows the cloning of existing #ClutterTexture based
|
|
* actors whilst saving underlying graphics resources.
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "clutter-clone-texture.h"
|
|
#include "clutter-main.h"
|
|
#include "clutter-feature.h"
|
|
#include "clutter-actor.h"
|
|
#include "clutter-util.h"
|
|
#include "clutter-enum-types.h"
|
|
#include "clutter-private.h"
|
|
#include "clutter-debug.h"
|
|
|
|
#include "cogl.h"
|
|
|
|
enum
|
|
{
|
|
PROP_0,
|
|
PROP_PARENT_TEXTURE
|
|
};
|
|
|
|
G_DEFINE_TYPE (ClutterCloneTexture,
|
|
clutter_clone_texture,
|
|
CLUTTER_TYPE_ACTOR);
|
|
|
|
#define CLUTTER_CLONE_TEXTURE_GET_PRIVATE(obj) \
|
|
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), CLUTTER_TYPE_CLONE_TEXTURE, ClutterCloneTexturePrivate))
|
|
|
|
struct _ClutterCloneTexturePrivate
|
|
{
|
|
ClutterTexture *parent_texture;
|
|
};
|
|
|
|
static void
|
|
clone_texture_render_to_gl_quad (ClutterCloneTexture *ctexture,
|
|
int x_1,
|
|
int y_1,
|
|
int x_2,
|
|
int y_2)
|
|
{
|
|
gint qx1 = 0, qx2 = 0, qy1 = 0, qy2 = 0;
|
|
gint qwidth = 0, qheight = 0;
|
|
gint x, y, i = 0, lastx = 0, lasty = 0;
|
|
gint n_x_tiles, n_y_tiles;
|
|
gint pwidth, pheight;
|
|
float tx, ty;
|
|
|
|
ClutterCloneTexturePrivate *priv = ctexture->priv;
|
|
ClutterActor *parent_actor = CLUTTER_ACTOR (priv->parent_texture);
|
|
|
|
priv = ctexture->priv;
|
|
|
|
qwidth = x_2 - x_1;
|
|
qheight = y_2 - y_1;
|
|
|
|
if (!CLUTTER_ACTOR_IS_REALIZED (parent_actor))
|
|
clutter_actor_realize (parent_actor);
|
|
|
|
/* Only paint if parent is in a state to do so */
|
|
if (!clutter_texture_has_generated_tiles (priv->parent_texture))
|
|
return;
|
|
|
|
clutter_texture_get_base_size (priv->parent_texture, &pwidth, &pheight);
|
|
|
|
if (!clutter_texture_is_tiled (priv->parent_texture))
|
|
{
|
|
clutter_texture_bind_tile (priv->parent_texture, 0);
|
|
|
|
/* NPOTS textures *always* used if extension available
|
|
*/
|
|
if (clutter_feature_available (CLUTTER_FEATURE_TEXTURE_RECTANGLE))
|
|
{
|
|
tx = (float) pwidth;
|
|
ty = (float) pheight;
|
|
}
|
|
else
|
|
{
|
|
tx = (float) pwidth / clutter_util_next_p2 (pwidth);
|
|
ty = (float) pheight / clutter_util_next_p2 (pheight);
|
|
}
|
|
|
|
cogl_texture_quad (x_1, x_2, y_1, y_2,
|
|
0,
|
|
0,
|
|
CLUTTER_FLOAT_TO_FIXED (tx),
|
|
CLUTTER_FLOAT_TO_FIXED (ty));
|
|
return;
|
|
}
|
|
|
|
clutter_texture_get_n_tiles (priv->parent_texture, &n_x_tiles, &n_y_tiles);
|
|
|
|
for (x = 0; x < n_x_tiles; x++)
|
|
{
|
|
lasty = 0;
|
|
|
|
for (y = 0; y < n_y_tiles; y++)
|
|
{
|
|
gint actual_w, actual_h;
|
|
gint xpos, ypos, xsize, ysize, ywaste, xwaste;
|
|
|
|
clutter_texture_bind_tile (priv->parent_texture, i);
|
|
|
|
clutter_texture_get_x_tile_detail (priv->parent_texture,
|
|
x, &xpos, &xsize, &xwaste);
|
|
|
|
clutter_texture_get_y_tile_detail (priv->parent_texture,
|
|
y, &ypos, &ysize, &ywaste);
|
|
|
|
actual_w = xsize - xwaste;
|
|
actual_h = ysize - ywaste;
|
|
|
|
tx = (float) actual_w / xsize;
|
|
ty = (float) actual_h / ysize;
|
|
|
|
qx1 = x_1 + lastx;
|
|
qx2 = qx1 + ((qwidth * actual_w ) / pwidth );
|
|
|
|
qy1 = y_1 + lasty;
|
|
qy2 = qy1 + ((qheight * actual_h) / pheight );
|
|
|
|
CLUTTER_NOTE (TEXTURE,
|
|
"rendering text tile x: %i, y: %i - %ix%i",
|
|
x, y,
|
|
actual_w, actual_h);
|
|
|
|
cogl_texture_quad (qx1, qx2, qy1, qy2,
|
|
0,
|
|
0,
|
|
CLUTTER_FLOAT_TO_FIXED (tx),
|
|
CLUTTER_FLOAT_TO_FIXED (ty));
|
|
|
|
lasty += qy2 - qy1;
|
|
|
|
i++;
|
|
}
|
|
lastx += qx2 - qx1;
|
|
}
|
|
}
|
|
|
|
static void
|
|
clutter_clone_texture_paint (ClutterActor *self)
|
|
{
|
|
ClutterCloneTexturePrivate *priv;
|
|
ClutterActor *parent_texture;
|
|
gint x_1, y_1, x_2, y_2;
|
|
GLenum target_type;
|
|
ClutterColor col = { 0xff, 0xff, 0xff, 0xff };
|
|
|
|
priv = CLUTTER_CLONE_TEXTURE (self)->priv;
|
|
|
|
/* no need to paint stuff if we don't have a texture to clone */
|
|
if (!priv->parent_texture)
|
|
return;
|
|
|
|
CLUTTER_NOTE (PAINT,
|
|
"painting clone texture '%s'",
|
|
clutter_actor_get_name (self) ? clutter_actor_get_name (self)
|
|
: "unknown");
|
|
|
|
/* parent texture may have been hidden, there for need to make sure its
|
|
* realised with resources available.
|
|
*/
|
|
parent_texture = CLUTTER_ACTOR (priv->parent_texture);
|
|
if (!CLUTTER_ACTOR_IS_REALIZED (parent_texture))
|
|
clutter_actor_realize (parent_texture);
|
|
|
|
cogl_push_matrix ();
|
|
|
|
/* FIXME: figure out nicer way of getting at this info...
|
|
*/
|
|
if (clutter_feature_available (CLUTTER_FEATURE_TEXTURE_RECTANGLE) &&
|
|
clutter_texture_is_tiled (CLUTTER_TEXTURE (parent_texture)) == FALSE)
|
|
{
|
|
target_type = CGL_TEXTURE_RECTANGLE_ARB;
|
|
cogl_enable (CGL_ENABLE_TEXTURE_RECT|CGL_ENABLE_BLEND);
|
|
}
|
|
else
|
|
{
|
|
target_type = CGL_TEXTURE_2D;
|
|
cogl_enable (CGL_ENABLE_TEXTURE_2D|CGL_ENABLE_BLEND);
|
|
}
|
|
|
|
col.alpha = clutter_actor_get_opacity (self);
|
|
cogl_color (&col);
|
|
|
|
clutter_actor_get_coords (self, &x_1, &y_1, &x_2, &y_2);
|
|
|
|
CLUTTER_NOTE (PAINT, "paint to x1: %i, y1: %i x2: %i, y2: %i "
|
|
"opacity: %i",
|
|
x_1, y_1, x_2, y_2,
|
|
clutter_actor_get_opacity (self));
|
|
|
|
/* Parent paint translated us into position */
|
|
clone_texture_render_to_gl_quad (CLUTTER_CLONE_TEXTURE (self),
|
|
0, 0, x_2 - x_1, y_2 - y_1);
|
|
|
|
cogl_pop_matrix ();
|
|
}
|
|
|
|
static void
|
|
set_parent_texture (ClutterCloneTexture *ctexture,
|
|
ClutterTexture *texture)
|
|
{
|
|
ClutterCloneTexturePrivate *priv = ctexture->priv;
|
|
ClutterActor *actor = CLUTTER_ACTOR (ctexture);
|
|
gboolean was_visible = CLUTTER_ACTOR_IS_VISIBLE (ctexture);
|
|
|
|
if (priv->parent_texture)
|
|
{
|
|
g_object_unref (priv->parent_texture);
|
|
priv->parent_texture = NULL;
|
|
|
|
if (was_visible)
|
|
clutter_actor_hide (actor);
|
|
}
|
|
|
|
if (texture)
|
|
{
|
|
gint width, height;
|
|
|
|
priv->parent_texture = g_object_ref (texture);
|
|
|
|
/* Sync up the size to parent texture base pixbuf size. */
|
|
clutter_texture_get_base_size (texture, &width, &height);
|
|
clutter_actor_set_size (actor, width, height);
|
|
|
|
/* queue a redraw if the cloned texture is already visible */
|
|
if (CLUTTER_ACTOR_IS_VISIBLE (priv->parent_texture) &&
|
|
was_visible)
|
|
{
|
|
clutter_actor_show (actor);
|
|
clutter_actor_queue_redraw (actor);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
static void
|
|
clutter_clone_texture_dispose (GObject *object)
|
|
{
|
|
ClutterCloneTexture *self = CLUTTER_CLONE_TEXTURE(object);
|
|
ClutterCloneTexturePrivate *priv = self->priv;
|
|
|
|
if (priv->parent_texture)
|
|
g_object_unref (priv->parent_texture);
|
|
|
|
priv->parent_texture = NULL;
|
|
|
|
G_OBJECT_CLASS (clutter_clone_texture_parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
clutter_clone_texture_finalize (GObject *object)
|
|
{
|
|
G_OBJECT_CLASS (clutter_clone_texture_parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
clutter_clone_texture_set_property (GObject *object,
|
|
guint prop_id,
|
|
const GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
ClutterCloneTexture *ctexture = CLUTTER_CLONE_TEXTURE (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_PARENT_TEXTURE:
|
|
set_parent_texture (ctexture, g_value_get_object (value));
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
clutter_clone_texture_get_property (GObject *object,
|
|
guint prop_id,
|
|
GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
ClutterCloneTexture *ctexture = CLUTTER_CLONE_TEXTURE (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_PARENT_TEXTURE:
|
|
g_value_set_object (value, ctexture->priv->parent_texture);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
clutter_clone_texture_class_init (ClutterCloneTextureClass *klass)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
|
|
|
|
actor_class->paint = clutter_clone_texture_paint;
|
|
|
|
gobject_class->finalize = clutter_clone_texture_finalize;
|
|
gobject_class->dispose = clutter_clone_texture_dispose;
|
|
gobject_class->set_property = clutter_clone_texture_set_property;
|
|
gobject_class->get_property = clutter_clone_texture_get_property;
|
|
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_PARENT_TEXTURE,
|
|
g_param_spec_object ("parent-texture",
|
|
"Parent Texture",
|
|
"The parent texture to clone",
|
|
CLUTTER_TYPE_TEXTURE,
|
|
CLUTTER_PARAM_READWRITE));
|
|
|
|
g_type_class_add_private (gobject_class, sizeof (ClutterCloneTexturePrivate));
|
|
}
|
|
|
|
static void
|
|
clutter_clone_texture_init (ClutterCloneTexture *self)
|
|
{
|
|
ClutterCloneTexturePrivate *priv;
|
|
|
|
self->priv = priv = CLUTTER_CLONE_TEXTURE_GET_PRIVATE (self);
|
|
priv->parent_texture = NULL;
|
|
}
|
|
|
|
/**
|
|
* clutter_clone_texture_new:
|
|
* @texture: a #ClutterTexture or %NULL
|
|
*
|
|
* Creates an efficient 'clone' of a pre-existing texture if which it
|
|
* shares the underlying pixbuf data.
|
|
*
|
|
* You can use clutter_clone_texture_set_parent_texture() to change the
|
|
* parent texture to be cloned.
|
|
*
|
|
* Return value: the newly created #ClutterCloneTexture
|
|
*/
|
|
ClutterActor *
|
|
clutter_clone_texture_new (ClutterTexture *texture)
|
|
{
|
|
g_return_val_if_fail (texture == NULL || CLUTTER_IS_TEXTURE (texture), NULL);
|
|
|
|
return g_object_new (CLUTTER_TYPE_CLONE_TEXTURE,
|
|
"parent-texture", texture,
|
|
NULL);
|
|
}
|
|
|
|
/**
|
|
* clutter_clone_texture_get_parent_texture:
|
|
* @clone: a #ClutterCloneTexture
|
|
*
|
|
* Retrieves the parent #ClutterTexture used by @clone.
|
|
*
|
|
* Return value: a #ClutterTexture actor, or %NULL
|
|
*
|
|
* Since: 0.2
|
|
*/
|
|
ClutterTexture *
|
|
clutter_clone_texture_get_parent_texture (ClutterCloneTexture *clone)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_CLONE_TEXTURE (clone), NULL);
|
|
|
|
return clone->priv->parent_texture;
|
|
}
|
|
|
|
/**
|
|
* clutter_clone_texture_set_parent_texture:
|
|
* @clone: a #ClutterCloneTexture
|
|
* @texture: a #ClutterTexture or %NULL
|
|
*
|
|
* Sets the parent texture cloned by the #ClutterCloneTexture.
|
|
*
|
|
* Since: 0.2
|
|
*/
|
|
void
|
|
clutter_clone_texture_set_parent_texture (ClutterCloneTexture *clone,
|
|
ClutterTexture *texture)
|
|
{
|
|
g_return_if_fail (CLUTTER_IS_CLONE_TEXTURE (clone));
|
|
g_return_if_fail (texture == NULL || CLUTTER_IS_TEXTURE (texture));
|
|
|
|
g_object_ref (clone);
|
|
|
|
set_parent_texture (clone, texture);
|
|
|
|
g_object_notify (G_OBJECT (clone), "parent-texture");
|
|
g_object_unref (clone);
|
|
}
|