mirror of
https://github.com/brl/mutter.git
synced 2024-11-11 00:26:40 -05:00
81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
|
/*
|
||
|
|
* Display multiple rotated copies of an image on top of each other
|
||
|
|
*
|
||
|
|
* Invoke with the path to a file to load a custom image
|
||
|
|
*/
|
||
|
|
#include <clutter/clutter.h>
|
||
|
|
|
||
|
|
#define STAGE_SIDE 512
|
||
|
|
|
||
|
|
static const ClutterColor box_color = { 0x33, 0x33, 0x55, 0xff };
|
||
|
|
|
||
|
|
int
|
||
|
|
main (int argc, char *argv[])
|
||
|
|
{
|
||
|
|
gchar *filename = TESTS_DATA_DIR "/redhand.png";
|
||
|
|
|
||
|
|
if (argc > 1)
|
||
|
|
filename = argv[1];
|
||
|
|
|
||
|
|
ClutterLayoutManager *layout;
|
||
|
|
ClutterActor *box;
|
||
|
|
ClutterActor *stage;
|
||
|
|
ClutterActor *texture;
|
||
|
|
CoglHandle *cogl_texture;
|
||
|
|
GError *error = NULL;
|
||
|
|
gfloat width;
|
||
|
|
|
||
|
|
clutter_init (&argc, &argv);
|
||
|
|
|
||
|
|
stage = clutter_stage_get_default ();
|
||
|
|
clutter_actor_set_size (stage, STAGE_SIDE, STAGE_SIDE);
|
||
|
|
|
||
|
|
layout = clutter_bin_layout_new (CLUTTER_BIN_ALIGNMENT_CENTER,
|
||
|
|
CLUTTER_BIN_ALIGNMENT_CENTER);
|
||
|
|
|
||
|
|
box = clutter_box_new (layout);
|
||
|
|
clutter_box_set_color (CLUTTER_BOX (box), &box_color);
|
||
|
|
|
||
|
|
texture = clutter_texture_new_from_file (filename, &error);
|
||
|
|
|
||
|
|
if (error != NULL)
|
||
|
|
g_error ("Error loading file %s; message was:\n%s",
|
||
|
|
filename,
|
||
|
|
error->message);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* get a reference to the underlying Cogl texture
|
||
|
|
* for copying onto each Clutter texture placed into the layout
|
||
|
|
*/
|
||
|
|
cogl_texture = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (texture));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* add gradually turning and shrinking textures,
|
||
|
|
* smallest one last; each actor ends up on top
|
||
|
|
* of the one added just before it
|
||
|
|
*/
|
||
|
|
for (width = STAGE_SIDE * 0.75; width >= STAGE_SIDE * 0.0625; width -= STAGE_SIDE * 0.0625)
|
||
|
|
{
|
||
|
|
ClutterActor *texture_copy = clutter_texture_new ();
|
||
|
|
clutter_texture_set_cogl_texture (CLUTTER_TEXTURE (texture_copy),
|
||
|
|
cogl_texture);
|
||
|
|
clutter_texture_set_keep_aspect_ratio (CLUTTER_TEXTURE (texture_copy),
|
||
|
|
TRUE);
|
||
|
|
clutter_actor_set_z_rotation_from_gravity (texture_copy,
|
||
|
|
(gfloat)(width * 0.5) - (STAGE_SIDE * 0.03125),
|
||
|
|
CLUTTER_GRAVITY_CENTER);
|
||
|
|
clutter_actor_set_width (texture_copy, width);
|
||
|
|
clutter_container_add_actor (CLUTTER_CONTAINER (box), texture_copy);
|
||
|
|
}
|
||
|
|
|
||
|
|
clutter_actor_add_constraint (box, clutter_align_constraint_new (stage, CLUTTER_ALIGN_X_AXIS, 0.5));
|
||
|
|
clutter_actor_add_constraint (box, clutter_align_constraint_new (stage, CLUTTER_ALIGN_Y_AXIS, 0.5));
|
||
|
|
clutter_container_add_actor (CLUTTER_CONTAINER (stage), box);
|
||
|
|
|
||
|
|
clutter_actor_show (stage);
|
||
|
|
|
||
|
|
clutter_main ();
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|