tests/interactive/test-image-box.c

   1 #include <stdlib.h>
   2 #include <gmodule.h>
   3 #include <gdk-pixbuf/gdk-pixbuf.h>
   4 #include <clutter/clutter.h>
   5
   6 static const struct {
   7   ClutterContentGravity gravity;
   8   const char *name;
   9 } gravities[] = {
  10   { CLUTTER_CONTENT_GRAVITY_TOP_LEFT, "Top Left" },
  11   { CLUTTER_CONTENT_GRAVITY_TOP, "Top" },
  12   { CLUTTER_CONTENT_GRAVITY_TOP_RIGHT, "Top Right" },
  13
  14   { CLUTTER_CONTENT_GRAVITY_LEFT, "Left" },
  15   { CLUTTER_CONTENT_GRAVITY_CENTER, "Center" },
  16   { CLUTTER_CONTENT_GRAVITY_RIGHT, "Right" },
  17
  18   { CLUTTER_CONTENT_GRAVITY_BOTTOM_LEFT, "Bottom Left" },
  19   { CLUTTER_CONTENT_GRAVITY_BOTTOM, "Bottom" },
  20   { CLUTTER_CONTENT_GRAVITY_BOTTOM_RIGHT, "Bottom Right" },
  21
  22   { CLUTTER_CONTENT_GRAVITY_RESIZE_FILL, "Resize Fill" },
  23   { CLUTTER_CONTENT_GRAVITY_RESIZE_ASPECT, "Resize Aspect" },
  24 };
  25
  26 static int n_gravities = G_N_ELEMENTS (gravities);
  27 static int cur_gravity = 0;
  28
  29 static void
  30 on_clicked (ClutterClickAction *action,
  31             ClutterActor       *actor,
  32             ClutterText        *label)
  33 {
  34   gchar *str;
  35
  36   clutter_actor_save_easing_state (actor);
  37   clutter_actor_set_content_gravity (actor, gravities[cur_gravity].gravity);
  38   clutter_actor_restore_easing_state (actor);
  39
  40   str = g_strconcat ("Content gravity: ", gravities[cur_gravity].name, NULL);
  41   clutter_text_set_text (label, str);
  42   g_free (str);
  43
  44   cur_gravity += 1;
  45
  46   if (cur_gravity >= n_gravities)
  47     cur_gravity = 0;
  48 }
  49
  50 G_MODULE_EXPORT const char *
  51 test_image_box_describe (void)
  52 {
  53   return "A test with image content.";
  54 }
  55
  56 G_MODULE_EXPORT int
  57 test_image_box_main (int argc, char *argv[])
  58 {
  59   ClutterActor *stage, *box, *text;
  60   ClutterContent *image;
  61   ClutterAction *action;
  62   GdkPixbuf *pixbuf;
  63   gchar *str;
  64
  65   if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
  66     return EXIT_FAILURE;
  67
  68   stage = clutter_stage_new ();
  69   clutter_actor_set_name (stage, "Stage");
  70   clutter_stage_set_title (CLUTTER_STAGE (stage), "Content Box");
  71   clutter_stage_set_user_resizable (CLUTTER_STAGE (stage), TRUE);
  72   g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);
  73   clutter_actor_show (stage);
  74
  75   box = clutter_actor_new ();
  76   clutter_actor_set_name (box, "Image");
  77   clutter_actor_set_margin_top (box, 12);
  78   clutter_actor_set_margin_right (box, 12);
  79   clutter_actor_set_margin_bottom (box, 12);
  80   clutter_actor_set_margin_left (box, 12);
  81   clutter_actor_add_constraint (box, clutter_bind_constraint_new (stage, CLUTTER_BIND_SIZE, 0.0));
  82   clutter_actor_add_child (stage, box);
  83
  84   pixbuf = gdk_pixbuf_new_from_file (TESTS_DATADIR G_DIR_SEPARATOR_S "redhand.png", NULL);
  85   image = clutter_image_new ();
  86   clutter_image_set_data (CLUTTER_IMAGE (image),
  87                           gdk_pixbuf_get_pixels (pixbuf),
  88                           gdk_pixbuf_get_has_alpha (pixbuf)
  89                             ? COGL_PIXEL_FORMAT_RGBA_8888
  90                             : COGL_PIXEL_FORMAT_RGB_888,
  91                           gdk_pixbuf_get_width (pixbuf),
  92                           gdk_pixbuf_get_height (pixbuf),
  93                           gdk_pixbuf_get_rowstride (pixbuf),
  94                           NULL);
  95   g_object_unref (pixbuf);
  96
  97   clutter_actor_set_content_scaling_filters (box,
  98                                              CLUTTER_SCALING_FILTER_TRILINEAR,
  99                                              CLUTTER_SCALING_FILTER_LINEAR);
 100   clutter_actor_set_content_gravity (box, gravities[n_gravities - 1].gravity);
 101   clutter_actor_set_content (box, image);
 102   g_object_unref (image);
 103
 104   str = g_strconcat ("Content gravity: ",
 105                      gravities[n_gravities - 1].name,
 106                      NULL);
 107
 108   text = clutter_text_new ();
 109   clutter_text_set_text (CLUTTER_TEXT (text), str);
 110   clutter_actor_add_constraint (text, clutter_align_constraint_new (stage, CLUTTER_ALIGN_BOTH, 0.5));
 111   clutter_actor_add_child (stage, text);
 112
 113   g_free (str);
 114
 115   action = clutter_click_action_new ();
 116   g_signal_connect (action, "clicked", G_CALLBACK (on_clicked), text);
 117   clutter_actor_set_reactive (box, TRUE);
 118   clutter_actor_add_action (box, action);
 119
 120   clutter_main ();
 121
 122   return EXIT_SUCCESS;
 123 }