StThemeNodeTransition *
st_theme_node_transition_new (StThemeNode *from_node,
StThemeNode *to_node,
guint duration)
{
StThemeNodeTransition *transition;
g_return_val_if_fail (ST_IS_THEME_NODE (from_node), NULL);
g_return_val_if_fail (ST_IS_THEME_NODE (to_node), NULL);
duration = st_theme_node_get_transition_duration (to_node);
transition = g_object_new (ST_TYPE_THEME_NODE_TRANSITION,
NULL);
transition->priv->old_theme_node = g_object_ref (from_node);
transition->priv->new_theme_node = g_object_ref (to_node);
transition->priv->timeline = clutter_timeline_new (duration);
transition->priv->timeline_completed_id =
g_signal_connect (transition->priv->timeline, "completed",
G_CALLBACK (on_timeline_completed), transition);
transition->priv->timeline_new_frame_id =
g_signal_connect (transition->priv->timeline, "new-frame",
G_CALLBACK (on_timeline_new_frame), transition);
clutter_timeline_set_progress_mode (transition->priv->timeline, CLUTTER_EASE_IN_OUT_QUAD);
clutter_timeline_start (transition->priv->timeline);
return transition;
}
static void
show_helper_text_title (CalibArea *area)
{
ClutterTransition *transition;
gfloat height = clutter_actor_get_height (area->helper_text_title);
clutter_actor_set_y (area->helper_text_title,
- clutter_actor_get_height (area->helper_text_title));
clutter_actor_show (area->helper_text_title);
transition = clutter_property_transition_new ("y");
clutter_timeline_set_progress_mode (CLUTTER_TIMELINE (transition),
CLUTTER_EASE_OUT);
clutter_timeline_set_duration (CLUTTER_TIMELINE (transition),
HELP_TEXT_ANIMATION_DURATION);
clutter_transition_set_animatable (transition,
CLUTTER_ANIMATABLE (area->helper_text_title));
clutter_transition_set_from (transition, G_TYPE_FLOAT, -height);
clutter_transition_set_to (transition, G_TYPE_FLOAT, 0.0);
g_signal_connect (CLUTTER_TIMELINE (transition),
"completed",
G_CALLBACK (on_helper_text_title_shown),
area);
clutter_timeline_start (CLUTTER_TIMELINE (transition));
g_clear_object (&area->helper_msg_timeline);
area->helper_msg_timeline = transition;
}
static void
mx_expander_init (MxExpander *self)
{
MxExpanderPrivate *priv = self->priv = GET_PRIVATE (self);
priv->label = clutter_text_new ();
clutter_actor_add_child ((ClutterActor *) self, priv->label);
priv->arrow = (ClutterActor *) mx_icon_new ();
clutter_actor_add_child ((ClutterActor*) self, priv->arrow);
clutter_actor_set_name (priv->arrow, "mx-expander-arrow-closed");
/* TODO: make this a style property */
priv->spacing = 10.0f;
priv->timeline = clutter_timeline_new (250);
clutter_timeline_set_progress_mode (priv->timeline, CLUTTER_EASE_IN_SINE);
g_signal_connect (priv->timeline, "new-frame", G_CALLBACK (new_frame), self);
g_signal_connect (priv->timeline, "completed", G_CALLBACK (timeline_complete), self);
clutter_actor_set_reactive ((ClutterActor *) self, TRUE);
g_signal_connect (self, "style-changed",
G_CALLBACK (mx_expander_style_changed), NULL);
g_signal_connect (self, "actor-added",
G_CALLBACK (mx_expander_actor_added), NULL);
g_signal_connect (self, "actor-removed",
G_CALLBACK (mx_expander_actor_removed), NULL);
}
static void
gesture_end (ClutterGestureAction *gesture,
ClutterActor *actor)
{
ClutterPanAction *self = CLUTTER_PAN_ACTION (gesture);
ClutterPanActionPrivate *priv = self->priv;
gfloat velocity, velocity_x, velocity_y;
gfloat delta_x, delta_y;
gfloat tau;
gint duration;
clutter_gesture_action_get_release_coords (CLUTTER_GESTURE_ACTION (self), 0, &priv->release_x, &priv->release_y);
if (!priv->should_interpolate)
{
priv->state = PAN_STATE_INACTIVE;
return;
}
priv->state = PAN_STATE_INTERPOLATING;
clutter_gesture_action_get_motion_delta (gesture, 0, &delta_x, &delta_y);
velocity = clutter_gesture_action_get_velocity (gesture, 0, &velocity_x, &velocity_y);
/* Exponential timing constant v(t) = v(0) * exp(-t/tau)
* tau = 1000ms / (frame_per_second * - ln(decay_per_frame))
* with frame_per_second = 60 and decay_per_frame = 0.95, tau ~= 325ms
* see http://ariya.ofilabs.com/2011/10/flick-list-with-its-momentum-scrolling-and-deceleration.html */
tau = 1000.0f / (reference_fps * - logf (priv->deceleration_rate));
/* See where the decreasing velocity reaches $min_velocity px/ms
* v(t) = v(0) * exp(-t/tau) = min_velocity
* t = - tau * ln( min_velocity / |v(0)|) */
duration = - tau * logf (min_velocity / (ABS (velocity) * priv->acceleration_factor));
/* Target point: x(t) = v(0) * tau * [1 - exp(-t/tau)] */
priv->target_x = velocity_x * priv->acceleration_factor * tau * (1 - exp ((float)-duration / tau));
priv->target_y = velocity_y * priv->acceleration_factor * tau * (1 - exp ((float)-duration / tau));
if (ABS (velocity) * priv->acceleration_factor > min_velocity && duration > FLOAT_EPSILON)
{
priv->interpolated_x = priv->interpolated_y = 0.0f;
priv->deceleration_timeline = clutter_timeline_new (duration);
clutter_timeline_set_progress_mode (priv->deceleration_timeline, CLUTTER_EASE_OUT_EXPO);
g_signal_connect (priv->deceleration_timeline, "new_frame",
G_CALLBACK (on_deceleration_new_frame), self);
g_signal_connect (priv->deceleration_timeline, "stopped",
G_CALLBACK (on_deceleration_stopped), self);
clutter_timeline_start (priv->deceleration_timeline);
}
else
{
emit_pan_stopped (self, actor);
}
}
static ClutterTransition *
create_fade_out_transition()
{
auto transition = clutter_property_transition_new("opacity");
clutter_transition_set_from(transition, G_TYPE_UINT, 255);
clutter_transition_set_to(transition, G_TYPE_UINT, 0);
clutter_timeline_set_duration(CLUTTER_TIMELINE(transition), FADE_DURATION);
clutter_timeline_set_repeat_count(CLUTTER_TIMELINE(transition), 0);
clutter_timeline_set_progress_mode(CLUTTER_TIMELINE(transition), CLUTTER_EASE_IN_OUT_CUBIC);
return transition;
}
/**
* mx_adjustment_interpolate:
* @adjustment: A #MxAdjustment
* @value: A #gdouble
* @duration: duration in milliseconds
* @mode: A #ClutterAnimationMode
*
* Interpolate #MxAdjustment:value to the new value specified by @value, using
* the mode and duration given.
*/
void
mx_adjustment_interpolate (MxAdjustment *adjustment,
gdouble value,
guint duration,
gulong mode)
{
MxAdjustmentPrivate *priv = adjustment->priv;
g_return_if_fail (isfinite (value));
if (duration <= 1)
{
stop_interpolation (adjustment);
mx_adjustment_set_value (adjustment, value);
return;
}
priv->old_position = priv->value;
priv->new_position = value;
if (!priv->interpolation)
{
priv->interpolation = clutter_timeline_new (duration);
g_signal_connect (priv->interpolation,
"new-frame",
G_CALLBACK (interpolation_new_frame_cb),
adjustment);
g_signal_connect (priv->interpolation,
"completed",
G_CALLBACK (interpolation_completed_cb),
adjustment);
}
else
{
/* Extend the animation if it gets interrupted, otherwise frequent calls
* to this function will end up with no advancements until the calls
* finish (as the animation never gets a chance to start).
*/
clutter_timeline_set_direction (priv->interpolation,
CLUTTER_TIMELINE_FORWARD);
clutter_timeline_rewind (priv->interpolation);
clutter_timeline_set_duration (priv->interpolation, duration);
}
clutter_timeline_set_progress_mode (priv->interpolation, mode);
clutter_timeline_start (priv->interpolation);
}
static ClutterTransition *
get_error_message_transition (CalibArea *area)
{
ClutterTransition *transition;
clutter_actor_show (area->error_text);
transition = clutter_property_transition_new ("opacity");
clutter_timeline_set_progress_mode (CLUTTER_TIMELINE (transition),
CLUTTER_EASE_OUT);
clutter_timeline_set_duration (CLUTTER_TIMELINE (transition),
ERROR_MESSAGE_ANIMATION_DURATION);
clutter_transition_set_animatable (transition,
CLUTTER_ANIMATABLE (area->error_text));
clutter_transition_set_from (transition, G_TYPE_UINT, 0);
clutter_transition_set_to (transition, G_TYPE_UINT, 255);
return transition;
}
static void
set_up_stage (CalibArea *calib_area, ClutterActor *stage)
{
ClutterPoint anchor;
ClutterColor color;
ClutterContent *success_content;
gfloat height;
gchar *markup;
calib_area->stage = stage;
calib_area->action_layer = clutter_actor_new ();
calib_area->clock = cc_clock_actor_new ();
calib_area->target = cc_target_actor_new ();
calib_area->text_title_holder = clutter_actor_new ();
calib_area->helper_text_title = clutter_text_new ();
calib_area->text_body_holder = clutter_actor_new ();
calib_area->helper_text_body = clutter_text_new ();
calib_area->error_text = clutter_text_new ();
calib_area->success_image = clutter_actor_new ();
clutter_stage_set_use_alpha (CLUTTER_STAGE (stage), TRUE);
clutter_actor_hide (calib_area->target);
/* bind the action layer's geometry to the stage's */
clutter_actor_add_constraint (calib_area->action_layer,
clutter_bind_constraint_new (stage,
CLUTTER_BIND_SIZE,
0));
clutter_actor_add_child (stage, calib_area->action_layer);
g_signal_connect (stage,
"allocation-changed",
G_CALLBACK (on_allocation_changed),
calib_area);
clutter_color_from_string (&color, "#000");
color.alpha = WINDOW_OPACITY * 255;
clutter_actor_set_background_color (stage, &color);
clutter_actor_add_child (calib_area->action_layer, calib_area->clock);
clutter_actor_add_constraint (calib_area->clock,
clutter_align_constraint_new (stage,
CLUTTER_ALIGN_BOTH,
0.5));
clutter_actor_add_child (calib_area->action_layer, calib_area->target);
/* set the helper text */
anchor.x = 0;
g_object_set (calib_area->text_title_holder, "pivot-point", &anchor, NULL);
clutter_actor_add_child (calib_area->action_layer,
calib_area->text_title_holder);
clutter_actor_add_child (calib_area->text_title_holder,
calib_area->helper_text_title);
height = clutter_actor_get_height (calib_area->clock);
clutter_actor_add_constraint (calib_area->text_title_holder,
clutter_bind_constraint_new (calib_area->clock,
CLUTTER_BIND_Y,
height * 1.5));
clutter_actor_add_constraint (calib_area->text_title_holder,
clutter_align_constraint_new (stage,
CLUTTER_ALIGN_X_AXIS,
.5));
clutter_text_set_line_alignment (CLUTTER_TEXT (calib_area->helper_text_title),
PANGO_ALIGN_CENTER);
color.red = COLOR_GRAY;
color.green = COLOR_GRAY;
color.blue = COLOR_GRAY;
color.alpha = 255;
markup = g_strdup_printf ("<big><b>%s</b></big>",
_(HELP_TEXT_TITLE));
clutter_text_set_markup (CLUTTER_TEXT (calib_area->helper_text_title), markup);
clutter_text_set_color (CLUTTER_TEXT (calib_area->helper_text_title), &color);
g_free (markup);
g_object_set (calib_area->text_body_holder, "pivot-point", &anchor, NULL);
clutter_actor_add_child (calib_area->action_layer,
calib_area->text_body_holder);
clutter_actor_add_child (calib_area->text_body_holder,
calib_area->helper_text_body);
height = clutter_actor_get_height (calib_area->helper_text_title);
clutter_actor_add_constraint (calib_area->text_body_holder,
clutter_bind_constraint_new (calib_area->text_title_holder,
CLUTTER_BIND_Y,
height * 1.2));
clutter_actor_add_constraint (calib_area->text_body_holder,
clutter_align_constraint_new (stage,
CLUTTER_ALIGN_X_AXIS,
.5));
clutter_text_set_line_alignment (CLUTTER_TEXT (calib_area->helper_text_body),
PANGO_ALIGN_CENTER);
markup = g_strdup_printf ("<span foreground=\"white\"><big>%s</big></span>",
_(HELP_TEXT_MAIN));
clutter_text_set_markup (CLUTTER_TEXT (calib_area->helper_text_body), markup);
g_free (markup);
/* set the error text */
g_object_set (calib_area->error_text, "pivot-point", &anchor, NULL);
clutter_actor_add_child (calib_area->action_layer, calib_area->error_text);
height = clutter_actor_get_height (calib_area->helper_text_body);
clutter_actor_add_constraint (calib_area->error_text,
clutter_bind_constraint_new (calib_area->text_title_holder,
CLUTTER_BIND_Y,
height * 3));
clutter_actor_add_constraint (calib_area->error_text,
clutter_align_constraint_new (stage,
CLUTTER_ALIGN_X_AXIS,
.5));
clutter_text_set_line_alignment (CLUTTER_TEXT (calib_area->error_text),
PANGO_ALIGN_CENTER);
markup = g_strdup_printf ("<span foreground=\"white\"><big>"
"<b>%s</b></big></span>",
ERROR_MESSAGE);
clutter_text_set_markup (CLUTTER_TEXT (calib_area->error_text), markup);
g_free (markup);
clutter_actor_hide (calib_area->error_text);
/* configure success image */
success_content = clutter_image_new ();
clutter_actor_set_content (calib_area->success_image,
success_content);
g_object_unref (success_content);
clutter_actor_add_child (stage, calib_area->success_image);
clutter_actor_add_constraint (calib_area->success_image,
clutter_align_constraint_new (stage,
CLUTTER_ALIGN_BOTH,
.5));
/* animate clock */
calib_area->clock_timeline = clutter_property_transition_new ("angle");
clutter_timeline_set_progress_mode (CLUTTER_TIMELINE (calib_area->clock_timeline),
CLUTTER_LINEAR);
clutter_timeline_set_duration (CLUTTER_TIMELINE (calib_area->clock_timeline),
MAX_TIME);
clutter_transition_set_animatable (calib_area->clock_timeline,
CLUTTER_ANIMATABLE (calib_area->clock));
clutter_transition_set_from (calib_area->clock_timeline, G_TYPE_FLOAT, .0);
clutter_transition_set_to (calib_area->clock_timeline, G_TYPE_FLOAT, 360.0);
clutter_timeline_set_repeat_count (CLUTTER_TIMELINE (calib_area->clock_timeline),
-1);
clutter_timeline_start (CLUTTER_TIMELINE (calib_area->clock_timeline));
g_signal_connect (CLUTTER_TIMELINE (calib_area->clock_timeline),
"completed",
G_CALLBACK (on_timeout),
calib_area);
g_signal_connect (stage,
"button-press-event",
G_CALLBACK (on_button_press_event),
calib_area);
g_signal_connect (stage,
"key-release-event",
G_CALLBACK (on_key_release_event),
calib_area);
}