static void
connect_joints (cairo_t *cairo,
SkeltrackJoint *joint_a,
SkeltrackJoint *joint_b,
const gchar *color_str)
{
ClutterColor *color;
if (joint_a == NULL || joint_b == NULL)
return;
color = clutter_color_new (0, 0, 0, 200);
clutter_color_from_string (color, color_str);
cairo_set_line_width (cairo, 10);
clutter_cairo_set_source_color (cairo, color);
cairo_move_to (cairo,
joint_a->screen_x,
joint_a->screen_y);
cairo_line_to (cairo,
joint_b->screen_x,
joint_b->screen_y);
cairo_stroke (cairo);
clutter_color_free (color);
}
static void
paint_joint (cairo_t *cairo,
SkeltrackJoint *joint,
gint radius,
const gchar *color_str)
{
ClutterColor *color;
if (joint == NULL)
return;
color = clutter_color_new (0, 0, 0, 200);
clutter_color_from_string (color, color_str);
cairo_set_line_width (cairo, 10);
clutter_cairo_set_source_color (cairo, color);
cairo_arc (cairo,
joint->screen_x,
joint->screen_y,
radius * (THRESHOLD_END - THRESHOLD_BEGIN) / joint->z,
0,
G_PI * 2);
cairo_fill (cairo);
clutter_color_free (color);
}
ClutterActor *
gb_player_rounded_rect (GbPlayer *self,
gint width,
gint height,
ClutterColor *bgcolor,
gint round_radius)
{
/* Mostly code of this function was got from Tweet, */
/* thanks to Emanuelle Bassi. (http://live.gnome.org/Tweet) */
ClutterActor *actor;
cairo_t *cr;
actor = clutter_cairo_new (width, height);
cr = clutter_cairo_create (CLUTTER_CAIRO (actor));
cairo_move_to (cr, round_radius, 0);
cairo_line_to (cr, width - round_radius, 0);
cairo_curve_to (cr, width, 0, width, 0, width, round_radius);
cairo_line_to (cr, width, height - round_radius);
cairo_curve_to (cr, width, height, width, height, width - round_radius, height);
cairo_line_to (cr, round_radius, height);
cairo_curve_to (cr, 0, height, 0, height, 0, height - round_radius);
cairo_line_to (cr, 0, round_radius);
cairo_curve_to (cr, 0, 0, 0, 0, round_radius, 0);
cairo_close_path (cr);
clutter_cairo_set_source_color (cr, bgcolor);
cairo_fill_preserve (cr);
cairo_destroy (cr);
return actor;
}
static void
update_background (ClutterActor *tex,
const ClutterColor *color,
gfloat width,
gfloat height)
{
cairo_t *cr = clutter_cairo_texture_create (CLUTTER_CAIRO_TEXTURE (tex));
cairo_pattern_t *pat;
gfloat x, y;
#define BG_ROUND_RADIUS 12
x = y = 0;
cairo_move_to (cr, BG_ROUND_RADIUS, y);
cairo_line_to (cr, width - BG_ROUND_RADIUS, y);
cairo_curve_to (cr, width, y, width, y, width, BG_ROUND_RADIUS);
cairo_line_to (cr, width, height - BG_ROUND_RADIUS);
cairo_curve_to (cr, width, height, width, height, width - BG_ROUND_RADIUS, height);
cairo_line_to (cr, BG_ROUND_RADIUS, height);
cairo_curve_to (cr, x, height, x, height, x, height - BG_ROUND_RADIUS);
cairo_line_to (cr, x, BG_ROUND_RADIUS);
cairo_curve_to (cr, x, y, x, y, BG_ROUND_RADIUS, y);
cairo_close_path (cr);
clutter_cairo_set_source_color (cr, color);
cairo_stroke (cr);
x += 4;
y += 4;
width -= 4;
height -= 4;
cairo_move_to (cr, BG_ROUND_RADIUS, y);
cairo_line_to (cr, width - BG_ROUND_RADIUS, y);
cairo_curve_to (cr, width, y, width, y, width, BG_ROUND_RADIUS);
cairo_line_to (cr, width, height - BG_ROUND_RADIUS);
cairo_curve_to (cr, width, height, width, height, width - BG_ROUND_RADIUS, height);
cairo_line_to (cr, BG_ROUND_RADIUS, height);
cairo_curve_to (cr, x, height, x, height, x, height - BG_ROUND_RADIUS);
cairo_line_to (cr, x, BG_ROUND_RADIUS);
cairo_curve_to (cr, x, y, x, y, BG_ROUND_RADIUS, y);
cairo_close_path (cr);
pat = cairo_pattern_create_linear (0, 0, 0, height);
cairo_pattern_add_color_stop_rgba (pat, 1, .85, .85, .85, 1);
cairo_pattern_add_color_stop_rgba (pat, .95, 1, 1, 1, 1);
cairo_pattern_add_color_stop_rgba (pat, .05, 1, 1, 1, 1);
cairo_pattern_add_color_stop_rgba (pat, 0, .85, .85, .85, 1);
cairo_set_source (cr, pat);
cairo_fill (cr);
cairo_pattern_destroy (pat);
cairo_destroy (cr);
#undef BG_ROUND_RADIUS
}
static gboolean
on_skeleton_draw (ClutterCanvas *canvas,
cairo_t *cairo,
gint width,
gint height,
gpointer user_data)
{
ClutterColor *color;
SkeltrackJoint *head, *left_hand, *right_hand,
*left_shoulder, *right_shoulder, *left_elbow, *right_elbow;
if (list == NULL)
return FALSE;
head = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_HEAD);
left_hand = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_LEFT_HAND);
right_hand = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_RIGHT_HAND);
left_shoulder = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_LEFT_SHOULDER);
right_shoulder = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_RIGHT_SHOULDER);
left_elbow = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_LEFT_ELBOW);
right_elbow = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_RIGHT_ELBOW);
/* Paint it white */
color = clutter_color_new (255, 255, 255, 255);
clutter_cairo_set_source_color (cairo, color);
cairo_rectangle (cairo, 0, 0, width, height);
cairo_fill (cairo);
clutter_color_free (color);
paint_joint (cairo, head, 50, "#FFF800");
connect_joints (cairo, left_shoulder, right_shoulder, "#afafaf");
connect_joints (cairo, left_shoulder, left_elbow, "#afafaf");
connect_joints (cairo, right_shoulder, right_elbow, "#afafaf");
connect_joints (cairo, right_hand, right_elbow, "#afafaf");
connect_joints (cairo, left_hand, left_elbow, "#afafaf");
paint_joint (cairo, left_hand, 30, "#C2FF00");
paint_joint (cairo, right_hand, 30, "#00FAFF");
skeltrack_joint_list_free (list);
list = NULL;
return FALSE;
}
static void
on_texture_draw (ClutterCairoTexture *texture,
cairo_t *cairo,
gpointer user_data)
{
guint width, height;
ClutterColor *color;
SkeltrackJoint *head, *left_hand, *right_hand,
*left_shoulder, *right_shoulder, *left_elbow, *right_elbow;
if (list == NULL)
return;
head = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_HEAD);
left_hand = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_LEFT_HAND);
right_hand = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_RIGHT_HAND);
left_shoulder = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_LEFT_SHOULDER);
right_shoulder = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_RIGHT_SHOULDER);
left_elbow = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_LEFT_ELBOW);
right_elbow = skeltrack_joint_list_get_joint (list,
SKELTRACK_JOINT_ID_RIGHT_ELBOW);
/* Paint it white */
clutter_cairo_texture_clear (texture);
clutter_cairo_texture_get_surface_size (texture, &width, &height);
color = clutter_color_new (255, 255, 255, 255);
clutter_cairo_set_source_color (cairo, color);
cairo_rectangle (cairo, 0, 0, width, height);
cairo_fill (cairo);
clutter_color_free (color);
paint_joint (cairo, head, 50, "#FFF800");
connect_joints (cairo, left_shoulder, right_shoulder, "#afafaf");
connect_joints (cairo, left_shoulder, left_elbow, "#afafaf");
connect_joints (cairo, right_shoulder, right_elbow, "#afafaf");
connect_joints (cairo, right_hand, right_elbow, "#afafaf");
connect_joints (cairo, left_hand, left_elbow, "#afafaf");
paint_joint (cairo, left_hand, 30, "#C2FF00");
paint_joint (cairo, right_hand, 30, "#00FAFF");
skeltrack_joint_list_free (list);
list = NULL;
}
static inline void
draw_background (TweetOverlay *overlay)
{
TweetOverlayPrivate *priv = overlay->priv;
cairo_t *cr;
gint width, height;
g_assert (CLUTTER_IS_CAIRO (priv->base));
cr = clutter_cairo_create (CLUTTER_CAIRO (priv->base));
g_assert (cr != NULL);
width = height = 0;
g_object_get (G_OBJECT (priv->base),
"surface-width", &width,
"surface-height", &height,
NULL);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
cairo_paint (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
cairo_move_to (cr, BG_ROUND_RADIUS, 0);
cairo_line_to (cr, width - BG_ROUND_RADIUS, 0);
cairo_curve_to (cr, width, 0, width, 0, width, BG_ROUND_RADIUS);
cairo_line_to (cr, width, height - BG_ROUND_RADIUS);
cairo_curve_to (cr, width, height, width, height, width - BG_ROUND_RADIUS, height);
cairo_line_to (cr, BG_ROUND_RADIUS, height);
cairo_curve_to (cr, 0, height, 0, height, 0, height - BG_ROUND_RADIUS);
cairo_line_to (cr, 0, BG_ROUND_RADIUS);
cairo_curve_to (cr, 0, 0, 0, 0, BG_ROUND_RADIUS, 0);
cairo_close_path (cr);
clutter_cairo_set_source_color (cr, &priv->base_color);
cairo_fill_preserve (cr);
cairo_destroy (cr);
}
static gboolean
on_canvas_draw (ClutterCanvas *canvas,
cairo_t *cr,
gint width,
gint height)
{
cairo_pattern_t *pat;
gfloat x, y;
g_print (G_STRLOC ": Painting at %d x %d\n", width, height);
cairo_save (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
cairo_paint (cr);
cairo_restore (cr);
#define BG_ROUND_RADIUS 12
x = y = 0;
cairo_move_to (cr, BG_ROUND_RADIUS, y);
cairo_line_to (cr, width - BG_ROUND_RADIUS, y);
cairo_curve_to (cr, width, y, width, y, width, BG_ROUND_RADIUS);
cairo_line_to (cr, width, height - BG_ROUND_RADIUS);
cairo_curve_to (cr, width, height, width, height, width - BG_ROUND_RADIUS, height);
cairo_line_to (cr, BG_ROUND_RADIUS, height);
cairo_curve_to (cr, x, height, x, height, x, height - BG_ROUND_RADIUS);
cairo_line_to (cr, x, BG_ROUND_RADIUS);
cairo_curve_to (cr, x, y, x, y, BG_ROUND_RADIUS, y);
cairo_close_path (cr);
clutter_cairo_set_source_color (cr, &bg_color);
cairo_stroke (cr);
x += 4;
y += 4;
width -= 4;
height -= 4;
cairo_move_to (cr, BG_ROUND_RADIUS, y);
cairo_line_to (cr, width - BG_ROUND_RADIUS, y);
cairo_curve_to (cr, width, y, width, y, width, BG_ROUND_RADIUS);
cairo_line_to (cr, width, height - BG_ROUND_RADIUS);
cairo_curve_to (cr, width, height, width, height, width - BG_ROUND_RADIUS, height);
cairo_line_to (cr, BG_ROUND_RADIUS, height);
cairo_curve_to (cr, x, height, x, height, x, height - BG_ROUND_RADIUS);
cairo_line_to (cr, x, BG_ROUND_RADIUS);
cairo_curve_to (cr, x, y, x, y, BG_ROUND_RADIUS, y);
cairo_close_path (cr);
pat = cairo_pattern_create_linear (0, 0, 0, height);
cairo_pattern_add_color_stop_rgba (pat, 1, .85, .85, .85, 1);
cairo_pattern_add_color_stop_rgba (pat, .95, 1, 1, 1, 1);
cairo_pattern_add_color_stop_rgba (pat, .05, 1, 1, 1, 1);
cairo_pattern_add_color_stop_rgba (pat, 0, .85, .85, .85, 1);
cairo_set_source (cr, pat);
cairo_fill (cr);
cairo_pattern_destroy (pat);
#undef BG_ROUND_RADIUS
return TRUE;
}
