static void
mx_toggle_get_preferred_height (ClutterActor *actor,
gfloat for_width,
gfloat *min_height_p,
gfloat *pref_height_p)
{
ClutterActor *background;
gfloat pref_h;
background = mx_widget_get_background_image (MX_WIDGET (actor));
if (!background)
{
if (min_height_p)
*min_height_p = 0;
if (pref_height_p)
*pref_height_p = 0;
return;
}
clutter_actor_get_preferred_height (background, -1, NULL, &pref_h);
if (min_height_p)
*min_height_p = pref_h;
if (pref_height_p)
*pref_height_p = pref_h;
}
static void
mnb_spinner_paint (ClutterActor *self)
{
MnbSpinnerPrivate *priv = MNB_SPINNER (self)->priv;
MxWidget *widget = MX_WIDGET (self);
ClutterTexture *background;
/*
* This paints border-image.
*/
CLUTTER_ACTOR_CLASS (mnb_spinner_parent_class)->paint (self);
if ((background = (ClutterTexture *) mx_widget_get_background_image (widget)))
{
gint tx_w, tx_h;
gfloat tf_x, tf_y, tf_w, tf_h;
guint8 opacity;
ClutterActorBox box = { 0, };
CoglHandle material;
if (!CLUTTER_IS_TEXTURE (background))
return;
opacity = clutter_actor_get_paint_opacity (self);
if (opacity == 0)
return;
clutter_texture_get_base_size (background, &tx_w, &tx_h);
material = clutter_texture_get_cogl_material (background);
cogl_material_set_color4ub (material, opacity, opacity, opacity, opacity);
clutter_actor_get_allocation_box (self, &box);
tf_x = (gfloat)priv->frame / (gfloat) priv->n_frames;
tf_y = 0.0;
tf_w = tf_x + 1.0 / priv->n_frames;
tf_h = 1.0;
/* Paint will have translated us */
cogl_set_source (material);
cogl_rectangle_with_texture_coords (0.0, 0.0,
box.x2 - box.x1,
box.y2 - box.y1,
tf_x, tf_y, tf_w, tf_h);
}
}
static void
mx_toggle_allocate (ClutterActor *actor,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
MxTogglePrivate *priv = MX_TOGGLE (actor)->priv;
ClutterActorBox handle_box, child_box;
ClutterActor *background;
gfloat handle_w;
gfloat toggle_pos;
CLUTTER_ACTOR_CLASS (mx_toggle_parent_class)->allocate (actor, box, flags);
mx_widget_get_available_area (MX_WIDGET (actor), box, &child_box);
/* background-image don't get stretched, so adjust the child box so that the
* handle appears in the correct place.
*/
background = mx_widget_get_background_image (MX_WIDGET (actor));
if (background)
{
gfloat width;
MxPadding padding;
mx_widget_get_padding (MX_WIDGET (actor), &padding);
clutter_actor_get_preferred_width (background, -1, NULL, &width);
width -= padding.left + padding.right;
child_box.x1 += (child_box.x2 - child_box.x1) / 2.f;
child_box.x1 -= width / 2.f;
child_box.x2 = child_box.x1 + width;
}
clutter_actor_get_preferred_width (priv->handle, -1, NULL, &handle_w);
toggle_pos = child_box.x2 - handle_w - child_box.x1;
priv->slide_length = toggle_pos;
toggle_pos = toggle_pos * priv->position;
handle_box.x1 = (gint) (child_box.x1 + toggle_pos);
handle_box.y1 = child_box.y1;
handle_box.x2 = handle_box.x1 + handle_w;
handle_box.y2 = child_box.y2;
clutter_actor_allocate (priv->handle, &handle_box, flags);
}
static void
mnb_spinner_get_preferred_height (ClutterActor *self,
gfloat for_width,
gfloat *min_height_p,
gfloat *natural_height_p)
{
MxWidget *widget = MX_WIDGET (self);
ClutterTexture *background;
if ((background = (ClutterTexture *) mx_widget_get_background_image (widget)))
{
gint tx_w, tx_h;
if (!CLUTTER_IS_TEXTURE (background))
return;
/*
* The background texture is a strip of squares making up the individual
* frames in the animation, so the width matches the height of the
* texture.
*/
clutter_texture_get_base_size (background, &tx_w, &tx_h);
if (min_height_p)
*min_height_p = tx_h;
if (natural_height_p)
*natural_height_p = tx_h;
return;
}
if (min_height_p)
*min_height_p = 0.0;
if (natural_height_p)
*natural_height_p = 0.0;
}
static void
mnb_spinner_constructed (GObject *self)
{
MnbSpinnerPrivate *priv = MNB_SPINNER (self)->priv;
MxWidget *widget = MX_WIDGET (self);
ClutterTexture *background;
ClutterTimeline *timeline;
/*
* Mx does not seem to load the style info until the first show, but we want
* to get hold of the background asset here to work out the frame count, so
* we need to force the style loading.
*
* NB: mx_widget_ensure_style() does not work here, because the MxWidget
* is_style_dirty flag is cleared at this point.
*/
mx_stylable_style_changed (MX_STYLABLE (widget), MX_STYLE_CHANGED_FORCE);
if ((background = (ClutterTexture *) mx_widget_get_background_image (widget)))
{
gint tx_w, tx_h;
guint duration;
if (!CLUTTER_IS_TEXTURE (background))
{
g_critical ("Expected ClutterTexture, but got %s",
G_OBJECT_TYPE_NAME (background));
return;
}
/*
* The background texture is a strip of squares making up the individual
* frames in the animation, so the width matches the height of the
* texture.
*/
clutter_texture_get_base_size (background, &tx_w, &tx_h);
priv->n_frames = tx_w / tx_h;
if (tx_w % tx_h)
g_warning (G_STRLOC ": Expected texture size %d x %d, got %d x %d",
tx_h * priv->n_frames, tx_h, tx_w, tx_h);
/*
* Setup a looped timeline with a marker that fires everytime we should
* advance to a new frame.
*
* Assume the whole animation is to last 1s.
*/
duration = 1000/ priv->n_frames;
timeline = priv->timeline = clutter_timeline_new (duration);
clutter_timeline_set_loop (timeline, TRUE);
clutter_timeline_add_marker_at_time (timeline, "next", duration);
clutter_timeline_stop (timeline);
g_signal_connect (timeline, "marker-reached",
G_CALLBACK (mnb_spinner_marker_reached_cb),
self);
}
else
g_warning ("%s did not have background-image set in style !!!",
G_OBJECT_TYPE_NAME (self));
}
