mutter/doc/cookbook/examples/layouts-box.c

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#include <stdlib.h>
#include <clutter/clutter.h>
static const ClutterColor stage_color = { 0x33, 0x33, 0x55, 0xff };
static const ClutterColor box_color = { 0xff, 0xff, 0xff, 0xff };
static const ClutterColor yellow_color = { 0xaa, 0xaa, 0x00, 0xff };
static const ClutterColor red_color = { 0xff, 0x00, 0x00, 0xff };
static const ClutterColor blue_color = { 0x00, 0x00, 0xff, 0xff };
int
main (int argc,
char *argv[])
{
ClutterActor *stage;
ClutterLayoutManager *box_layout;
ClutterActor *box;
ClutterActor *yellow;
ClutterActor *red;
ClutterActor *blue;
if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
return 1;
stage = clutter_stage_get_default ();
clutter_actor_set_size (stage, 400, 400);
clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
/* create a ClutterBoxLayout */
box_layout = clutter_box_layout_new ();
/* configure it to lay out actors vertically */
clutter_box_layout_set_vertical (CLUTTER_BOX_LAYOUT (box_layout), TRUE);
/* put 5px of spacing between actors */
clutter_box_layout_set_spacing (CLUTTER_BOX_LAYOUT (box_layout), 5);
/* actors are packed into this box; we set its width, but
* allow its height to be determined by the children it contains
*/
box = clutter_box_new (box_layout);
clutter_box_set_color (CLUTTER_BOX (box), &box_color);
clutter_actor_set_position (box, 100, 50);
clutter_actor_set_width (box, 200);
/* pack an actor into the layout and set all layout properties on it
* at the same time
*/
yellow = clutter_rectangle_new_with_color (&yellow_color);
clutter_actor_set_size (yellow, 100, 100);
clutter_box_layout_pack (CLUTTER_BOX_LAYOUT (box_layout),
yellow,
FALSE, /* expand */
TRUE, /* x-fill */
FALSE, /* y-fill */
CLUTTER_BOX_ALIGNMENT_START, /* x-align */
CLUTTER_BOX_ALIGNMENT_START); /* y-align */
/* pack an actor into the box and set layout properties at the
* same time; note this is more concise if you mostly want to
* use the default properties for the layout
*/
red = clutter_rectangle_new_with_color (&red_color);
clutter_actor_set_size (red, 100, 100);
clutter_box_pack (CLUTTER_BOX (box),
red,
"x-fill", TRUE,
NULL);
/* add an actor to the box as a container and set layout properties
* afterwards; the latter is useful if you want to change properties on
* actors already inside a layout, but note that you have to
* pass the function both the layout AND the container
*/
blue = clutter_rectangle_new_with_color (&blue_color);
clutter_actor_set_size (blue, 100, 100);
clutter_container_add_actor (CLUTTER_CONTAINER (box), blue);
clutter_layout_manager_child_set (box_layout,
CLUTTER_CONTAINER (box),
blue,
"x-fill", TRUE,
NULL);
/* put the box on the stage */
clutter_container_add_actor (CLUTTER_CONTAINER (stage), box);
clutter_actor_show (stage);
clutter_main ();
return EXIT_SUCCESS;
}