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91 lines
4.1 KiB
C
91 lines
4.1 KiB
C
#include <stdlib.h>
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#include <gmodule.h>
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#include <clutter/clutter.h>
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G_MODULE_EXPORT int
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test_snap_constraint_main (int argc,
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char *argv[])
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{
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ClutterActor *stage, *layer_a, *layer_b, *layer_c;
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clutter_init (&argc, &argv);
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/* the main container */
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stage = clutter_stage_new ();
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clutter_actor_set_name (stage, "stage");
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clutter_stage_set_title (CLUTTER_STAGE (stage), "Snap Constraint");
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clutter_stage_set_color (CLUTTER_STAGE (stage), CLUTTER_COLOR_Aluminium1);
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clutter_stage_set_user_resizable (CLUTTER_STAGE (stage), TRUE);
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g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
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/* first layer, with a fixed (100, 25) size */
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layer_a = clutter_rectangle_new_with_color (CLUTTER_COLOR_ScarletRed);
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clutter_actor_set_name (layer_a, "layerA");
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), layer_a);
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clutter_actor_set_size (layer_a, 100.0, 25.0);
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/* the first layer is anchored to the middle of the stage */
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clutter_actor_add_constraint (layer_a, clutter_align_constraint_new (stage, CLUTTER_ALIGN_X_AXIS, 0.5));
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clutter_actor_add_constraint (layer_a, clutter_align_constraint_new (stage, CLUTTER_ALIGN_Y_AXIS, 0.5));
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/* second layer, with no implicit size */
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layer_b = clutter_rectangle_new_with_color (CLUTTER_COLOR_DarkButter);
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clutter_actor_set_name (layer_b, "layerB");
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), layer_b);
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/* the second layer tracks the X coordinate and the width of
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* the first layer
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*/
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clutter_actor_add_constraint (layer_b, clutter_bind_constraint_new (layer_a, CLUTTER_BIND_X, 0.0));
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clutter_actor_add_constraint (layer_b, clutter_bind_constraint_new (layer_a, CLUTTER_BIND_WIDTH, 0.0));
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/* the second layer is snapped between the bottom edge of
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* the first layer, and the bottom edge of the stage; a
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* spacing of 10 pixels in each direction is added for padding
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*/
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clutter_actor_add_constraint (layer_b,
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clutter_snap_constraint_new (layer_a,
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CLUTTER_SNAP_EDGE_TOP,
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CLUTTER_SNAP_EDGE_BOTTOM,
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10.0));
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clutter_actor_add_constraint (layer_b,
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clutter_snap_constraint_new (stage,
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CLUTTER_SNAP_EDGE_BOTTOM,
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CLUTTER_SNAP_EDGE_BOTTOM,
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-10.0));
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/* the third layer, with no implicit size */
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layer_c = clutter_rectangle_new_with_color (CLUTTER_COLOR_LightChameleon);
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clutter_actor_set_name (layer_c, "layerC");
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), layer_c);
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/* as for the second layer, the third layer tracks the X
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* coordinate and width of the first layer
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*/
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clutter_actor_add_constraint (layer_c, clutter_bind_constraint_new (layer_a, CLUTTER_BIND_X, 0.0));
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clutter_actor_add_constraint (layer_c, clutter_bind_constraint_new (layer_a, CLUTTER_BIND_WIDTH, 0.0));
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/* the third layer is snapped between the top edge of the stage
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* and the top edge of the first layer; again, a spacing of
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* 10 pixels in each direction is added for padding
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*/
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clutter_actor_add_constraint (layer_c,
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clutter_snap_constraint_new (layer_a,
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CLUTTER_SNAP_EDGE_BOTTOM,
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CLUTTER_SNAP_EDGE_TOP,
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-10.0));
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clutter_actor_add_constraint (layer_c,
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clutter_snap_constraint_new (stage,
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CLUTTER_SNAP_EDGE_TOP,
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CLUTTER_SNAP_EDGE_TOP,
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10.0));
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clutter_actor_show (stage);
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clutter_main ();
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return EXIT_SUCCESS;
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}
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