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mutter-performance-source/tests/interactive/test-depth.c
Emmanuele Bassi 52811b240f [stage] Coalesce fog and perspective API
The fog and perspective API is currently split in two parts:

  - the floating point version, using values

  - the fixed point version, using structures

The relative properties are using the structure types, since they
are meant to set multiple values at the same time. Instead of
using bare values, the whole API should be coalesced into two
simple calls using structures to match the GObject properties.

Thus:

  clutter_stage_set_fog (ClutterStage*, const ClutterFog*)
  clutter_stage_get_fog (ClutterStage*, ClutterFog*)

  clutter_stage_set_perspective (ClutterStage*, const ClutterPerspective*)
  clutter_stage_get_perspective (ClutterStage*, ClutterPerspective*)

Which supercedes the fixed point and floating point variants.

More importantly, both ClutterFog and ClutterPerspective should
using floating point values, since that's what get passed to
COGL anyway.

ClutterFog should also drop the "density" member, since ClutterStage
only allows linear fog; non-linear fog distribution can be achieved
using a signal handler and calling cogl_set_fog() directly; this keeps
the API compact yet extensible.

Finally, there is no ClutterStage:fog so it should be added.
2009-03-10 12:38:03 +00:00

213 lines
6.9 KiB
C

#include <stdlib.h>
#include <gmodule.h>
#include <clutter/clutter.h>
/* each time the timeline animating the label completes, swap the direction */
static void
timeline_completed (ClutterTimeline *timeline,
gpointer user_data)
{
clutter_timeline_set_direction (timeline,
!clutter_timeline_get_direction (timeline));
clutter_timeline_start (timeline);
}
static ClutterActor *raise_actor[2];
static gboolean raise_no = 0;
static gboolean
raise_top (gpointer ignored)
{
clutter_actor_raise_top (raise_actor[raise_no]);
raise_no = !raise_no;
return TRUE;
}
static ClutterActor *
clone_box (ClutterActor *original)
{
guint width, height;
ClutterActor *group;
ClutterActor *clone;
clutter_actor_get_size (original, &width, &height);
group = clutter_group_new ();
clone = clutter_clone_new (original);
clutter_container_add_actor (CLUTTER_CONTAINER (group), clone);
clutter_actor_set_depth (clone, width/2);
clone = clutter_clone_new (original);
clutter_container_add_actor (CLUTTER_CONTAINER (group), clone);
clutter_actor_set_rotation (clone, CLUTTER_Y_AXIS, 180, width/2, 0, 0);
clutter_actor_set_depth (clone, -(gint)width/2);
clone = clutter_clone_new (original);
clutter_container_add_actor (CLUTTER_CONTAINER (group), clone);
clutter_actor_set_rotation (clone, CLUTTER_Y_AXIS, 90, 0, 0, 0);
clutter_actor_set_depth (clone, width/2);
clutter_actor_set_position (clone, 0, 0);
clone = clutter_clone_new (original);
clutter_container_add_actor (CLUTTER_CONTAINER (group), clone);
clutter_actor_set_rotation (clone, CLUTTER_Y_AXIS, 90, 0, 0, 0);
clutter_actor_set_depth (clone, width/2);
clutter_actor_set_position (clone, width, 0);
clone = clutter_clone_new (original);
clutter_container_add_actor (CLUTTER_CONTAINER (group), clone);
clutter_actor_set_rotation (clone, CLUTTER_X_AXIS, 90, 0, 0, 0);
clutter_actor_set_depth (clone, -(gint)width/2);
clutter_actor_set_position (clone, 0, height);
clone = clutter_clone_new (original);
clutter_container_add_actor (CLUTTER_CONTAINER (group), clone);
clutter_actor_set_rotation (clone, CLUTTER_X_AXIS, 90, 0, 0, 0);
clutter_actor_set_depth (clone, -(gint)width/2);
clutter_actor_set_position (clone, 0, 0);
clutter_actor_show_all (group);
return group;
}
static ClutterActor *
janus_group (const gchar *front_text,
const gchar *back_text)
{
ClutterColor slide_color = {0x00, 0x00, 0x00, 0xff};
ClutterColor red = {0xff, 0x00, 0x00, 0xff};
ClutterColor green = {0x00, 0xff, 0x00, 0xff};
ClutterActor *group, *rectangle, *front, *back;
guint width, height;
guint width2, height2;
group = clutter_group_new ();
rectangle = clutter_rectangle_new_with_color (&slide_color);
front = clutter_text_new_with_text ("Sans 50px", front_text);
back = clutter_text_new_with_text ("Sans 50px", back_text);
clutter_text_set_color (CLUTTER_TEXT (front), &red);
clutter_text_set_color (CLUTTER_TEXT (back), &green);
clutter_actor_get_size (front, &width, &height);
clutter_actor_get_size (back, &width2, &height2);
if (width2 > width)
width = width2;
if (height2 > height)
height = height2;
clutter_actor_set_size (rectangle, width, height);
clutter_actor_set_rotation (back, CLUTTER_Y_AXIS, 180, width/2, 0, 0);
clutter_container_add (CLUTTER_CONTAINER (group),
back, rectangle, front, NULL);
clutter_actor_show_all (group);
return group;
}
G_MODULE_EXPORT gint
test_depth_main (int argc, char *argv[])
{
ClutterTimeline *timeline;
ClutterBehaviour *d_behave;
ClutterBehaviour *r_behave;
ClutterActor *stage;
ClutterActor *group, *hand, *label, *rect, *janus, *box;
ClutterColor stage_color = { 0xcc, 0xcc, 0xcc, 0xff };
ClutterColor rect_color = { 0, 0, 0, 0x88 };
ClutterFog stage_fog = { 10.0, -50.0 };
GError *error;
clutter_init (&argc, &argv);
stage = clutter_stage_get_default ();
clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
clutter_stage_set_fog (CLUTTER_STAGE (stage), &stage_fog);
clutter_stage_set_use_fog (CLUTTER_STAGE (stage), TRUE);
g_signal_connect (stage,
"button-press-event", G_CALLBACK (clutter_main_quit),
NULL);
group = clutter_group_new ();
clutter_stage_add (stage, group);
clutter_actor_show (group);
label = clutter_text_new_with_text ("Mono 26", "Clutter");
clutter_actor_set_position (label, 120, 200);
clutter_actor_show (label);
error = NULL;
hand = clutter_texture_new_from_file ("redhand.png", &error);
if (error)
g_error ("Unable to load redhand.png: %s", error->message);
clutter_actor_set_position (hand, 240, 100);
clutter_actor_show (hand);
rect = clutter_rectangle_new_with_color (&rect_color);
clutter_actor_set_position (rect, 340, 100);
clutter_actor_set_size (rect, 200, 200);
clutter_actor_show (rect);
clutter_container_add (CLUTTER_CONTAINER (group), hand, rect, NULL);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), label);
/* 3 seconds, at 60 fps */
timeline = clutter_timeline_new (180, 60);
g_signal_connect (timeline,
"completed", G_CALLBACK (timeline_completed),
NULL);
d_behave =
clutter_behaviour_depth_new (clutter_alpha_new_full (timeline,
CLUTTER_LINEAR),
-100, 100);
clutter_behaviour_apply (d_behave, label);
/* add two faced actor */
janus = janus_group ("GREEN", "RED");
clutter_container_add_actor (CLUTTER_CONTAINER (stage), janus);
clutter_actor_set_position (janus, 300, 350);
r_behave =
clutter_behaviour_rotate_new (clutter_alpha_new_full (timeline,
CLUTTER_LINEAR),
CLUTTER_Y_AXIS,
CLUTTER_ROTATE_CW,
0, 360);
clutter_behaviour_apply (r_behave, janus);
/* add hand box */
box = clone_box (hand);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), box);
clutter_actor_set_position (box, 200, 250);
clutter_actor_set_scale (box, 0.5, 0.5);
clutter_actor_set_rotation (box, CLUTTER_X_AXIS, 45, 0, 0, 0);
clutter_actor_set_opacity (box, 0x44);
r_behave =
clutter_behaviour_rotate_new (clutter_alpha_new_full (timeline,
CLUTTER_LINEAR),
CLUTTER_Y_AXIS,
CLUTTER_ROTATE_CW,
0, 360);
clutter_behaviour_apply (r_behave, box);
clutter_actor_show (stage);
clutter_timeline_start (timeline);
raise_actor[0] = rect;
raise_actor[1] = hand;
g_timeout_add (2000, raise_top, NULL);
clutter_main ();
g_object_unref (d_behave);
g_object_unref (timeline);
return EXIT_SUCCESS;
}