static void
st_polygon_pick (ClutterActor *self,
const ClutterColor *pick_color)
{
CoglPath *selection_path;
gfloat coords[8];
StPolygon *area = ST_POLYGON (self);
StPolygonPrivate *priv = area->priv;
if (!clutter_actor_should_pick_paint (self))
return;
coords[0] = priv->ulc_x;
coords[1] = priv->ulc_y;
coords[2] = priv->llc_x;
coords[3] = priv->llc_y;
coords[4] = priv->lrc_x;
coords[5] = priv->lrc_y;
coords[6] = priv->urc_x;
coords[7] = priv->urc_y;
cogl_set_source_color4ub (pick_color->red,
pick_color->green,
pick_color->blue,
pick_color->alpha);
selection_path = cogl_path_new();
cogl_path_polygon (selection_path, (float *)coords, 4);
cogl_path_fill (selection_path);
cogl_object_unref (selection_path);
}
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
st_polygon_paint (ClutterActor *self)
{
StPolygon *area = ST_POLYGON (self);
StPolygonPrivate *priv = area->priv;
if (priv->debug) {
gfloat coords[8];
CoglPath *selection_path;
cogl_set_source_color4f (.50,
.50,
.50,
.50);
coords[0] = priv->ulc_x;
coords[1] = priv->ulc_y;
coords[2] = priv->llc_x;
coords[3] = priv->llc_y;
coords[4] = priv->lrc_x;
coords[5] = priv->lrc_y;
coords[6] = priv->urc_x;
coords[7] = priv->urc_y;
selection_path = cogl_path_new();
cogl_path_polygon (selection_path, (float *)coords, 4);
cogl_path_fill (selection_path);
cogl_object_unref (selection_path);
}
}
void
cogl_clip_push_from_path (void)
{
cogl_clip_push_from_path_preserve ();
cogl_path_new ();
}
void
test_path_clip (void)
{
CoglPath *path;
CoglPipeline *pipeline;
int fb_width, fb_height;
fb_width = cogl_framebuffer_get_width (test_fb);
fb_height = cogl_framebuffer_get_height (test_fb);
cogl_framebuffer_orthographic (test_fb,
0, 0, fb_width, fb_height, -1, 100);
path = cogl_path_new ();
cogl_framebuffer_clear4f (test_fb,
COGL_BUFFER_BIT_COLOR,
1.0f, 0.0f, 0.0f, 1.0f);
/* Make an L-shape with the top right corner left untouched */
cogl_path_move_to (path, 0, fb_height);
cogl_path_line_to (path, fb_width, fb_height);
cogl_path_line_to (path, fb_width, fb_height / 2);
cogl_path_line_to (path, fb_width / 2, fb_height / 2);
cogl_path_line_to (path, fb_width / 2, 0);
cogl_path_line_to (path, 0, 0);
cogl_path_close (path);
cogl_framebuffer_push_path_clip (test_fb, path);
/* Try to fill the framebuffer with a blue rectangle. This should be
* clipped to leave the top right quadrant as is */
pipeline = cogl_pipeline_new (test_ctx);
cogl_pipeline_set_color4ub (pipeline, 0, 0, 255, 255);
cogl_framebuffer_draw_rectangle (test_fb,
pipeline,
0, 0, fb_width, fb_height);
cogl_framebuffer_pop_clip (test_fb);
cogl_object_unref (pipeline);
cogl_object_unref (path);
/* Check each of the four quadrants */
test_utils_check_pixel (test_fb,
fb_width / 4, fb_height / 4,
0x0000ffff);
test_utils_check_pixel (test_fb,
fb_width * 3 / 4, fb_height / 4,
0xff0000ff);
test_utils_check_pixel (test_fb,
fb_width / 4, fb_height * 3 / 4,
0x0000ffff);
test_utils_check_pixel (test_fb,
fb_width * 3 / 4, fb_height * 3 / 4,
0x0000ffff);
if (cogl_test_verbose ())
g_print ("OK\n");
}
static void
pick (ClutterActor *self,
const ClutterColor *color)
{
ChamplainPointPrivate *priv = GET_PRIVATE (self);
gdouble radius = priv->size / 2.0;
cogl_path_new ();
cogl_set_source_color4ub (color->red,
color->green,
color->blue,
color->alpha);
cogl_path_move_to (radius, radius);
cogl_path_arc (radius, radius, radius, radius, 0, 360.0);
cogl_path_close ();
cogl_path_fill ();
}
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 ();
}
void
_cogl_pango_display_list_render (CoglPangoDisplayList *dl,
const CoglColor *color)
{
GSList *l;
for (l = dl->nodes; l; l = l->next)
{
CoglPangoDisplayListNode *node = l->data;
CoglColor draw_color;
if (node->pipeline == NULL)
{
if (node->type == COGL_PANGO_DISPLAY_LIST_TEXTURE)
node->pipeline =
_cogl_pango_pipeline_cache_get (dl->pipeline_cache,
node->d.texture.texture);
else
node->pipeline =
_cogl_pango_pipeline_cache_get (dl->pipeline_cache,
NULL);
}
if (node->color_override)
/* Use the override color but preserve the alpha from the
draw color */
cogl_color_init_from_4ub (&draw_color,
cogl_color_get_red_byte (&node->color),
cogl_color_get_green_byte (&node->color),
cogl_color_get_blue_byte (&node->color),
cogl_color_get_alpha_byte (color));
else
draw_color = *color;
cogl_color_premultiply (&draw_color);
cogl_pipeline_set_color (node->pipeline, &draw_color);
cogl_push_source (node->pipeline);
switch (node->type)
{
case COGL_PANGO_DISPLAY_LIST_TEXTURE:
_cogl_pango_display_list_render_texture (node);
break;
case COGL_PANGO_DISPLAY_LIST_RECTANGLE:
cogl_rectangle (node->d.rectangle.x_1,
node->d.rectangle.y_1,
node->d.rectangle.x_2,
node->d.rectangle.y_2);
break;
case COGL_PANGO_DISPLAY_LIST_TRAPEZOID:
{
float points[8];
CoglPath *path;
points[0] = node->d.trapezoid.x_11;
points[1] = node->d.trapezoid.y_1;
points[2] = node->d.trapezoid.x_12;
points[3] = node->d.trapezoid.y_2;
points[4] = node->d.trapezoid.x_22;
points[5] = node->d.trapezoid.y_2;
points[6] = node->d.trapezoid.x_21;
points[7] = node->d.trapezoid.y_1;
path = cogl_path_new ();
cogl_path_polygon (path, points, 4);
cogl_path_fill (path);
cogl_object_unref (path);
}
break;
}
cogl_pop_source ();
}
}
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);
}
