mirror of
https://github.com/brl/mutter.git
synced 2024-12-12 14:20:17 +00:00
027e1a717f
We don't have a tests/data directory any more since the test suites reorganization; the cookbook examples, though, rely on the existence of the redhand.png image. In order to fix them, we copy the file in the examples directory, and we reference it directly. Since we need it for the examples, and we install the example code, it's also necessary to add the image to the EXTRA_DIST rule.
83 lines
2.5 KiB
C
83 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[])
|
|
{
|
|
ClutterLayoutManager *layout;
|
|
ClutterActor *box;
|
|
ClutterActor *stage;
|
|
ClutterActor *texture;
|
|
CoglHandle *cogl_texture;
|
|
GError *error = NULL;
|
|
gfloat width;
|
|
|
|
const gchar *filename = "redhand.png";
|
|
|
|
if (argc > 1)
|
|
filename = argv[1];
|
|
|
|
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
|
|
return 1;
|
|
|
|
stage = clutter_stage_new ();
|
|
clutter_actor_set_size (stage, STAGE_SIDE, STAGE_SIDE);
|
|
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
|
|
|
|
layout = clutter_bin_layout_new (CLUTTER_BIN_ALIGNMENT_CENTER,
|
|
CLUTTER_BIN_ALIGNMENT_CENTER);
|
|
|
|
box = clutter_actor_new ();
|
|
clutter_actor_set_layout_manager (box, layout);
|
|
clutter_actor_set_background_color (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_actor_add_child (box, texture_copy);
|
|
}
|
|
|
|
clutter_actor_add_constraint (box, clutter_align_constraint_new (stage, CLUTTER_ALIGN_BOTH, 0.5));
|
|
clutter_actor_add_child (stage, box);
|
|
|
|
clutter_actor_show (stage);
|
|
|
|
clutter_main ();
|
|
|
|
return 0;
|
|
}
|