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examples: Update drag and drop action code

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Use modern API and show idiomatic behaviour.
This commit is contained in:
Emmanuele Bassi
2012-05-24 12:08:58 +01:00
parent a45d6455f7
commit 2878258fc0
2 changed files with 142 additions and 79 deletions
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107
examples/drop-action.c
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@ -25,36 +25,42 @@ on_drag_end (ClutterDragAction *action,
g_print ("Drag ended at: %.0f, %.0f\n",
event_x, event_y);
clutter_actor_animate (actor, CLUTTER_LINEAR, 150, "opacity", 255, NULL);
clutter_actor_save_easing_state (actor);
clutter_actor_set_easing_mode (actor, CLUTTER_LINEAR);
clutter_actor_set_opacity (actor, 255);
clutter_actor_restore_easing_state (actor);
clutter_actor_save_easing_state (handle);
if (!drop_successful)
{
ClutterActor *parent = clutter_actor_get_parent (actor);
gfloat x_pos, y_pos;
clutter_actor_animate (clutter_actor_get_parent (actor),
CLUTTER_LINEAR, 150,
"opacity", 255,
NULL);
clutter_actor_save_easing_state (parent);
clutter_actor_set_easing_mode (parent, CLUTTER_LINEAR);
clutter_actor_set_opacity (parent, 255);
clutter_actor_restore_easing_state (parent);
clutter_actor_get_transformed_position (actor, &x_pos, &y_pos);
clutter_actor_animate (handle, CLUTTER_EASE_OUT_BOUNCE, 250,
"x", x_pos,
"y", y_pos,
"opacity", 0,
"signal-swapped::completed",
G_CALLBACK (clutter_actor_destroy),
handle,
NULL);
clutter_actor_set_easing_mode (handle, CLUTTER_EASE_OUT_BOUNCE);
clutter_actor_set_position (handle, x_pos, y_pos);
clutter_actor_set_opacity (handle, 0);
clutter_actor_restore_easing_state (handle);
}
else
{
clutter_actor_animate (handle, CLUTTER_LINEAR, 250,
"opacity", 0,
"signal-swapped::completed",
G_CALLBACK (clutter_actor_destroy),
handle,
NULL);
clutter_actor_set_easing_mode (handle, CLUTTER_LINEAR);
clutter_actor_set_opacity (handle, 0);
}
clutter_actor_restore_easing_state (handle);
g_signal_connect (handle, "transitions-completed",
G_CALLBACK (clutter_actor_destroy),
NULL);
}
static void
@ -69,14 +75,18 @@ on_drag_begin (ClutterDragAction *action,
clutter_actor_get_position (actor, &x_pos, &y_pos);
handle = clutter_rectangle_new_with_color (CLUTTER_COLOR_DarkSkyBlue);
handle = clutter_actor_new ();
clutter_actor_set_background_color (handle, CLUTTER_COLOR_DarkSkyBlue);
clutter_actor_set_size (handle, 128, 128);
clutter_actor_set_position (handle, event_x - x_pos, event_y - y_pos);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), handle);
clutter_actor_add_child (stage, handle);
clutter_drag_action_set_drag_handle (action, handle);
clutter_actor_animate (actor, CLUTTER_LINEAR, 150, "opacity", 128, NULL);\
clutter_actor_save_easing_state (actor);
clutter_actor_set_easing_mode (actor, CLUTTER_LINEAR);
clutter_actor_set_opacity (actor, 128);
clutter_actor_restore_easing_state (actor);
drop_successful = FALSE;
}
@ -90,7 +100,8 @@ add_drag_object (ClutterActor *target)
{
ClutterAction *action;
drag = clutter_rectangle_new_with_color (CLUTTER_COLOR_LightSkyBlue);
drag = clutter_actor_new ();
clutter_actor_set_background_color (drag, CLUTTER_COLOR_LightSkyBlue);
clutter_actor_set_size (drag, HANDLE_SIZE, HANDLE_SIZE);
clutter_actor_set_position (drag,
(TARGET_SIZE - HANDLE_SIZE) / 2.0,
@ -105,28 +116,32 @@ add_drag_object (ClutterActor *target)
}
parent = clutter_actor_get_parent (drag);
if (parent == target)
{
clutter_actor_animate (target, CLUTTER_LINEAR, 150,
"opacity", 255,
NULL);
clutter_actor_save_easing_state (target);
clutter_actor_set_easing_mode (target, CLUTTER_LINEAR);
clutter_actor_set_opacity (target, 255);
clutter_actor_restore_easing_state (target);
return;
}
g_object_ref (drag);
if (parent != NULL && parent != stage)
{
clutter_container_remove_actor (CLUTTER_CONTAINER (parent), drag);
clutter_actor_animate (parent, CLUTTER_LINEAR, 150,
"opacity", 64,
NULL);
clutter_actor_remove_child (parent, drag);
clutter_actor_save_easing_state (parent);
clutter_actor_set_easing_mode (parent, CLUTTER_LINEAR);
clutter_actor_set_opacity (parent, 64);
clutter_actor_restore_easing_state (parent);
}
clutter_container_add_actor (CLUTTER_CONTAINER (target), drag);
clutter_actor_animate (target, CLUTTER_LINEAR, 150,
"opacity", 255,
NULL);
clutter_actor_add_child (target, drag);
clutter_actor_save_easing_state (target);
clutter_actor_set_easing_mode (target, CLUTTER_LINEAR);
clutter_actor_set_opacity (target, 255);
clutter_actor_restore_easing_state (target);
g_object_unref (drag);
}
@ -142,9 +157,10 @@ on_target_over (ClutterDropAction *action,
target = clutter_actor_meta_get_actor (CLUTTER_ACTOR_META (action));
clutter_actor_animate (target, CLUTTER_LINEAR, 250,
"opacity", final_opacity,
NULL);
clutter_actor_save_easing_state (target);
clutter_actor_set_easing_mode (target, CLUTTER_LINEAR);
clutter_actor_set_opacity (target, final_opacity);
clutter_actor_restore_easing_state (target);
}
static void
@ -181,8 +197,8 @@ main (int argc, char *argv[])
clutter_stage_set_title (CLUTTER_STAGE (stage), "Drop Action");
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
target1 = clutter_box_new (clutter_fixed_layout_new ());
clutter_box_set_color (CLUTTER_BOX (target1), CLUTTER_COLOR_LightScarletRed);
target1 = clutter_actor_new ();
clutter_actor_set_background_color (target1, CLUTTER_COLOR_LightScarletRed);
clutter_actor_set_size (target1, TARGET_SIZE, TARGET_SIZE);
clutter_actor_set_opacity (target1, 64);
clutter_actor_add_constraint (target1, clutter_align_constraint_new (stage, CLUTTER_ALIGN_Y_AXIS, 0.5));
@ -203,7 +219,8 @@ main (int argc, char *argv[])
G_CALLBACK (on_target_drop),
NULL);
dummy = clutter_rectangle_new_with_color (CLUTTER_COLOR_DarkOrange);
dummy = clutter_actor_new ();
clutter_actor_set_background_color (dummy, CLUTTER_COLOR_DarkOrange);
clutter_actor_set_size (dummy,
640 - (2 * 10) - (2 * (TARGET_SIZE + 10)),
TARGET_SIZE);
@ -211,8 +228,8 @@ main (int argc, char *argv[])
clutter_actor_add_constraint (dummy, clutter_align_constraint_new (stage, CLUTTER_ALIGN_Y_AXIS, 0.5));
clutter_actor_set_reactive (dummy, TRUE);
target2 = clutter_box_new (clutter_fixed_layout_new ());
clutter_box_set_color (CLUTTER_BOX (target2), CLUTTER_COLOR_LightChameleon);
target2 = clutter_actor_new ();
clutter_actor_set_background_color (target2, CLUTTER_COLOR_LightChameleon);
clutter_actor_set_size (target2, TARGET_SIZE, TARGET_SIZE);
clutter_actor_set_opacity (target2, 64);
clutter_actor_add_constraint (target2, clutter_align_constraint_new (stage, CLUTTER_ALIGN_Y_AXIS, 0.5));
@ -233,7 +250,9 @@ main (int argc, char *argv[])
G_CALLBACK (on_target_drop),
NULL);
clutter_container_add (CLUTTER_CONTAINER (stage), target1, dummy, target2, NULL);
clutter_actor_add_child (stage, target1);
clutter_actor_add_child (stage, dummy);
clutter_actor_add_child (stage, target2);
add_drag_object (target1);