static void
empathy_rounded_effect_paint (ClutterEffect *effect,
ClutterEffectPaintFlags flags)
{
EmpathyRoundedEffect *self = EMPATHY_ROUNDED_EFFECT (effect);
ClutterActor *actor;
ClutterActorBox allocation = { 0, };
gfloat width, height;
actor = clutter_actor_meta_get_actor (CLUTTER_ACTOR_META (self));
clutter_actor_get_allocation_box (actor, &allocation);
clutter_actor_box_get_size (&allocation, &width, &height);
cogl_path_new ();
/* Create and store a path describing a rounded rectangle. The small
* size of the preview window makes the radius of the rounded corners
* very small too, so we can safely use a very coarse angle step
* without loosing rendering accuracy. It also significantly reduces
* the time spent in the underlying internal cogl path functions */
cogl_path_round_rectangle (0, 0, width, height, height / 16., 15);
cogl_clip_push_from_path ();
/* Flip */
cogl_push_matrix ();
cogl_translate (width, 0, 0);
cogl_scale (-1, 1, 1);
clutter_actor_continue_paint (actor);
cogl_pop_matrix ();
cogl_clip_pop ();
}
static void
pre_paint_clip_cb (void)
{
/* Generate a clip path that clips out the top left division */
cogl_path_move_to (DIVISION_WIDTH, 0);
cogl_path_line_to (SOURCE_SIZE, 0);
cogl_path_line_to (SOURCE_SIZE, SOURCE_SIZE);
cogl_path_line_to (0, SOURCE_SIZE);
cogl_path_line_to (0, DIVISION_HEIGHT);
cogl_path_line_to (DIVISION_WIDTH, DIVISION_HEIGHT);
cogl_path_close ();
cogl_clip_push_from_path ();
}
static void
empathy_rounded_actor_paint (ClutterActor *actor)
{
EmpathyRoundedActor *self = EMPATHY_ROUNDED_ACTOR (actor);
ClutterActorBox allocation = { 0, };
gfloat width, height;
clutter_actor_get_allocation_box (actor, &allocation);
clutter_actor_box_get_size (&allocation, &width, &height);
cogl_path_new ();
/* create and store a path describing a rounded rectangle */
cogl_path_round_rectangle (0, 0, width, height,
height / self->priv->round_factor, 0.1);
cogl_clip_push_from_path ();
CLUTTER_ACTOR_CLASS (empathy_rounded_actor_parent_class)->paint (actor);
cogl_clip_pop ();
}
static void
on_paint (ClutterActor *actor, CallbackData *data)
{
int i;
ClutterGeometry stage_size;
gint hand_width, hand_height;
GSList *node;
clutter_actor_get_allocation_geometry (data->stage, &stage_size);
hand_width = cogl_texture_get_width (data->hand);
hand_height = cogl_texture_get_height (data->hand);
/* Setup the clipping */
for (node = data->clips; node; node = node->next)
{
Clip *clip = (Clip *) node->data;
if (clip->type == CLIP_RECTANGLE)
cogl_clip_push_rectangle (clip->x1,
clip->y1,
clip->x2,
clip->y2);
else if (clip->type == CLIP_ROTATED_RECTANGLE)
{
float size = MIN (ABS (clip->x2 - clip->x1),
ABS (clip->y2 - clip->y1));
int cx = (clip->x1 + clip->x2) / 2;
int cy = (clip->y1 + clip->y2) / 2;
size = sqrtf ((size / 2) * (size / 2) * 2);
cogl_push_matrix ();
/* Rotate 45° about the centre point */
cogl_translate (cx, cy, 0.0f);
cogl_rotate (45.0f, 0.0f, 0.0f, 1.0f);
cogl_clip_push_rectangle (-size / 2, -size / 2, size / 2, size / 2);
cogl_pop_matrix ();
}
else
{
make_clip_path (clip);
cogl_clip_push_from_path ();
}
}
/* Draw a rectangle filling the entire stage */
cogl_set_source_color4ub (0x80, 0x80, 0xff, 0xff);
cogl_rectangle (0, 0, stage_size.width, stage_size.height);
draw_shapes (10, 10);
/* Draw the hand at different rotations */
for (i = -2; i <= 2; i++)
{
cogl_push_matrix ();
cogl_translate (stage_size.width / 2 + stage_size.width / 6 * i,
stage_size.height / 2, 0);
cogl_rotate (i * 40, 0, 1, 0);
cogl_set_source_color4ub (0xff, 0xff, 0xff, 0xff);
cogl_set_source_texture (data->hand);
cogl_rectangle_with_texture_coords ((-hand_width / 2),
(-hand_height / 2),
(hand_width / 2),
(hand_height / 2),
0, 0, 1, 1);
cogl_pop_matrix ();
}
draw_shapes (stage_size.width - 310, stage_size.height - 110);
/* Remove all of the clipping */
g_slist_foreach (data->clips, (GFunc) cogl_clip_pop, NULL);
/* Draw the bounding box for each of the clips */
for (node = data->clips; node; node = node->next)
{
Clip *clip = (Clip *) node->data;
make_clip_path (clip);
cogl_set_source_color4ub (0x00, 0x00, 0xff, 0xff);
cogl_path_stroke ();
}
/* Draw the bounding box for the pending new clip */
if (data->current_clip.type != CLIP_NONE)
{
make_clip_path (&data->current_clip);
cogl_set_source_color4ub (0xff, 0x00, 0x00, 0xff);
cogl_path_stroke ();
}
}
static void
mnb_fancy_bin_paint (ClutterActor *actor)
{
MnbFancyBin *self = MNB_FANCY_BIN (actor);
MnbFancyBinPrivate *priv = self->priv;
/* Draw the clipped child if necessary */
if (priv->fanciness > 0.0)
{
MxPadding padding;
gfloat width, height;
clutter_actor_get_size (actor, &width, &height);
mx_widget_get_padding (MX_WIDGET (actor), &padding);
/* Create a clip path so that the clone won't poke out
* from underneath the background.
*/
cogl_path_new ();
cogl_path_move_to (padding.left + priv->curve_radius,
padding.top);
cogl_path_arc (width - padding.right - priv->curve_radius,
priv->curve_radius + padding.top,
priv->curve_radius,
priv->curve_radius,
270,
360);
cogl_path_arc (width - padding.right - priv->curve_radius,
height - padding.bottom - priv->curve_radius,
priv->curve_radius,
priv->curve_radius,
0,
90);
cogl_path_arc (padding.left + priv->curve_radius,
height - padding.bottom - priv->curve_radius,
priv->curve_radius,
priv->curve_radius,
90,
180);
cogl_path_arc (padding.left + priv->curve_radius,
padding.top + priv->curve_radius,
priv->curve_radius,
priv->curve_radius,
180,
270);
cogl_path_close ();
cogl_clip_push_from_path ();
/* Paint child */
if (priv->child)
clutter_actor_paint (priv->child);
cogl_clip_pop ();
/* Chain up for background */
CLUTTER_ACTOR_CLASS (mnb_fancy_bin_parent_class)->paint (actor);
}
/* Draw the un-fancy child */
if ((priv->fanciness < 1.0) && priv->clone)
clutter_actor_paint (priv->clone);
}
