mirror of
https://github.com/brl/mutter.git
synced 2024-11-26 10:00:45 -05:00
57a5f2296a
pre_paint() and post_paint() implementations don't need to check whether an effect is disabled: Clutter will not apply an effect unless it is enabled. So remove code which checks whether the effect is enabled or disabled from the example applications and the documentation.
312 lines
7.7 KiB
C
312 lines
7.7 KiB
C
#include "cb-border-effect.h"
|
|
|
|
G_DEFINE_TYPE (CbBorderEffect, cb_border_effect, CLUTTER_TYPE_EFFECT);
|
|
|
|
#define CB_BORDER_EFFECT_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
|
|
CB_TYPE_BORDER_EFFECT, \
|
|
CbBorderEffectPrivate))
|
|
|
|
static const ClutterColor grey = { 0xaa, 0xaa, 0xaa, 0xff };
|
|
|
|
struct _CbBorderEffectPrivate
|
|
{
|
|
CoglMaterial *border;
|
|
ClutterColor color;
|
|
gfloat width;
|
|
};
|
|
|
|
enum {
|
|
PROP_0,
|
|
|
|
PROP_COLOR,
|
|
PROP_WIDTH,
|
|
|
|
PROP_LAST
|
|
};
|
|
|
|
static GParamSpec *obj_props[PROP_LAST];
|
|
|
|
/* ClutterEffect implementation */
|
|
static void
|
|
cb_border_effect_post_paint (ClutterEffect *self)
|
|
{
|
|
ClutterActor *actor;
|
|
gfloat width;
|
|
gfloat height;
|
|
CbBorderEffectPrivate *priv;
|
|
|
|
priv = CB_BORDER_EFFECT (self)->priv;
|
|
|
|
/* get the associated actor's dimensions */
|
|
actor = clutter_actor_meta_get_actor (CLUTTER_ACTOR_META (self));
|
|
clutter_actor_get_size (actor, &width, &height);
|
|
|
|
/* draw Cogl rectangles on top */
|
|
cogl_set_source (priv->border);
|
|
cogl_path_new ();
|
|
|
|
/* left rectangle */
|
|
cogl_path_rectangle (0, 0, priv->width, height);
|
|
|
|
/* top rectangle */
|
|
cogl_path_rectangle (priv->width, 0, width, priv->width);
|
|
|
|
/* right rectangle */
|
|
cogl_path_rectangle (width - priv->width, priv->width, width, height);
|
|
|
|
/* bottom rectangle */
|
|
cogl_path_rectangle (priv->width,
|
|
height - priv->width,
|
|
width - priv->width,
|
|
height);
|
|
|
|
cogl_path_fill ();
|
|
}
|
|
|
|
/* GObject implementation */
|
|
static void
|
|
cb_border_effect_dispose (GObject *gobject)
|
|
{
|
|
CbBorderEffectPrivate *priv = CB_BORDER_EFFECT (gobject)->priv;
|
|
|
|
if (priv->border != COGL_INVALID_HANDLE)
|
|
{
|
|
cogl_handle_unref (priv->border);
|
|
priv->border = COGL_INVALID_HANDLE;
|
|
}
|
|
|
|
G_OBJECT_CLASS (cb_border_effect_parent_class)->dispose (gobject);
|
|
}
|
|
|
|
static void
|
|
cb_border_effect_set_property (GObject *gobject,
|
|
guint prop_id,
|
|
const GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
CbBorderEffect *effect = CB_BORDER_EFFECT (gobject);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_COLOR:
|
|
cb_border_effect_set_color (effect, clutter_value_get_color (value));
|
|
break;
|
|
|
|
case PROP_WIDTH:
|
|
cb_border_effect_set_width (effect, g_value_get_float (value));
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
cb_border_effect_get_property (GObject *gobject,
|
|
guint prop_id,
|
|
GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
CbBorderEffectPrivate *priv = CB_BORDER_EFFECT (gobject)->priv;
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_COLOR:
|
|
g_value_set_object (value, &(priv->color));
|
|
break;
|
|
|
|
case PROP_WIDTH:
|
|
g_value_set_float (value, priv->width);
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* GObject class and instance init */
|
|
static void
|
|
cb_border_effect_class_init (CbBorderEffectClass *klass)
|
|
{
|
|
ClutterEffectClass *effect_class = CLUTTER_EFFECT_CLASS (klass);
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
GParamSpec *pspec;
|
|
|
|
effect_class->post_paint = cb_border_effect_post_paint;
|
|
|
|
gobject_class->set_property = cb_border_effect_set_property;
|
|
gobject_class->get_property = cb_border_effect_get_property;
|
|
gobject_class->dispose = cb_border_effect_dispose;
|
|
|
|
g_type_class_add_private (klass, sizeof (CbBorderEffectPrivate));
|
|
|
|
/**
|
|
* CbBorderEffect:width:
|
|
*
|
|
* The width of the border
|
|
*/
|
|
pspec = g_param_spec_float ("width",
|
|
"Width",
|
|
"The width of the border (in pixels)",
|
|
1.0, 100.0,
|
|
10.0,
|
|
G_PARAM_READWRITE);
|
|
obj_props[PROP_WIDTH] = pspec;
|
|
g_object_class_install_property (gobject_class, PROP_WIDTH, pspec);
|
|
|
|
/**
|
|
* CbBorderEffect:color:
|
|
*
|
|
* The color of the border
|
|
*/
|
|
pspec = clutter_param_spec_color ("color",
|
|
"Color",
|
|
"The border color",
|
|
&grey,
|
|
G_PARAM_READWRITE);
|
|
obj_props[PROP_COLOR] = pspec;
|
|
g_object_class_install_property (gobject_class, PROP_COLOR, pspec);
|
|
}
|
|
|
|
static void
|
|
cb_border_effect_init (CbBorderEffect *self)
|
|
{
|
|
CbBorderEffectPrivate *priv;
|
|
|
|
priv = self->priv = CB_BORDER_EFFECT_GET_PRIVATE (self);
|
|
|
|
priv->border = cogl_material_new ();
|
|
|
|
priv->color = grey;
|
|
}
|
|
|
|
/* called each time a property is set on the effect */
|
|
static void
|
|
cb_border_effect_update (CbBorderEffect *self)
|
|
{
|
|
ClutterActor *actor = clutter_actor_meta_get_actor (CLUTTER_ACTOR_META (self));
|
|
|
|
if (actor != NULL)
|
|
clutter_actor_queue_redraw (actor);
|
|
}
|
|
|
|
/* public API */
|
|
|
|
/**
|
|
* cb_border_effect_new:
|
|
* @width: width of the border applied by the effect
|
|
* @color: a #ClutterColor
|
|
*
|
|
* Creates a new #ClutterEffect with the given @width
|
|
* and of the given @color.
|
|
*/
|
|
ClutterEffect *
|
|
cb_border_effect_new (gfloat width,
|
|
const ClutterColor *color)
|
|
{
|
|
return g_object_new (CB_TYPE_BORDER_EFFECT,
|
|
"width", width,
|
|
"color", color,
|
|
NULL);
|
|
}
|
|
|
|
/**
|
|
* cb_border_effect_set_color:
|
|
* @self: a #CbBorderEffect
|
|
* @color: a #ClutterColor
|
|
*
|
|
* Sets the color of the border provided by the effect @self.
|
|
*/
|
|
void
|
|
cb_border_effect_set_color (CbBorderEffect *self,
|
|
const ClutterColor *color)
|
|
{
|
|
CbBorderEffectPrivate *priv;
|
|
|
|
g_return_if_fail (CB_IS_BORDER_EFFECT (self));
|
|
g_return_if_fail (color != NULL);
|
|
|
|
priv = CB_BORDER_EFFECT_GET_PRIVATE (self);
|
|
|
|
priv->color.red = color->red;
|
|
priv->color.green = color->green;
|
|
priv->color.blue = color->blue;
|
|
priv->color.alpha = color->alpha;
|
|
|
|
cogl_material_set_color4ub (priv->border,
|
|
color->red,
|
|
color->green,
|
|
color->blue,
|
|
color->alpha);
|
|
|
|
cb_border_effect_update (self);
|
|
}
|
|
|
|
/**
|
|
* cb_border_effect_get_color:
|
|
* @self: a #CbBorderEffect
|
|
* @color: return location for a #ClutterColor
|
|
*
|
|
* Retrieves the color of the border applied by the effect @self.
|
|
*/
|
|
void
|
|
cb_border_effect_get_color (CbBorderEffect *self,
|
|
ClutterColor *color)
|
|
{
|
|
CbBorderEffectPrivate *priv;
|
|
|
|
g_return_if_fail (CB_IS_BORDER_EFFECT (self));
|
|
|
|
priv = CB_BORDER_EFFECT_GET_PRIVATE (self);
|
|
|
|
color->red = priv->color.red;
|
|
color->green = priv->color.green;
|
|
color->blue = priv->color.blue;
|
|
color->alpha = priv->color.alpha;
|
|
}
|
|
|
|
/**
|
|
* cb_border_effect_set_width:
|
|
* @self: a #CbBorderEffect
|
|
* @width: the width of the border
|
|
*
|
|
* Sets the width (in pixels) of the border applied by the effect @self.
|
|
*/
|
|
void
|
|
cb_border_effect_set_width (CbBorderEffect *self,
|
|
gfloat width)
|
|
{
|
|
CbBorderEffectPrivate *priv;
|
|
|
|
g_return_if_fail (CB_IS_BORDER_EFFECT (self));
|
|
|
|
priv = CB_BORDER_EFFECT_GET_PRIVATE (self);
|
|
|
|
priv->width = width;
|
|
|
|
cb_border_effect_update (self);
|
|
}
|
|
|
|
/**
|
|
* cb_border_effect_get_width:
|
|
* @self: a #CbBorderEffect
|
|
*
|
|
* Gets the width (in pixels) of the border applied by the effect @self.
|
|
*
|
|
* Return value: the border's width, or 0.0 if @self is not
|
|
* a #CbBorderEffect
|
|
*/
|
|
gfloat
|
|
cb_border_effect_get_width (CbBorderEffect *self)
|
|
{
|
|
CbBorderEffectPrivate *priv;
|
|
|
|
g_return_val_if_fail (CB_IS_BORDER_EFFECT (self), 0.0);
|
|
|
|
priv = CB_BORDER_EFFECT_GET_PRIVATE (self);
|
|
|
|
return priv->width;
|
|
}
|