git.maemo.org Git - clutter-gtk/blob - examples/gtk-clutter-test.c

   1 #include <gtk/gtk.h>
   2 #include <clutter/clutter.h>
   3 #include <math.h>
   4
   5 #include <clutter-gtk/clutter-gtk.h>
   6
   7 #define TRAILS 0
   8 #define NHANDS  2
   9 #define WINWIDTH   400
  10 #define WINHEIGHT  400
  11 #define RADIUS     150
  12
  13 typedef struct SuperOH
  14 {
  15   ClutterActor *hand[NHANDS], *bgtex;
  16   ClutterGroup   *group;
  17   GdkPixbuf      *bgpixb;
  18
  19 } SuperOH;
  20
  21 static gboolean fade = FALSE;
  22 static gboolean fullscreen = FALSE;
  23
  24 /* input handler */
  25 void
  26 input_cb (ClutterStage *stage,
  27           ClutterEvent *event,
  28           gpointer      data)
  29 {
  30   if (event->type == CLUTTER_BUTTON_PRESS)
  31     {
  32       ClutterActor *a;
  33       gfloat x, y;
  34
  35       clutter_event_get_coords (event, &x, &y);
  36
  37       a = clutter_stage_get_actor_at_pos (stage, CLUTTER_PICK_ALL, x, y);
  38       if (a && (CLUTTER_IS_TEXTURE (a) || CLUTTER_IS_CLONE (a)))
  39         clutter_actor_hide (a);
  40     }
  41   else if (event->type == CLUTTER_KEY_PRESS)
  42     {
  43       g_print ("*** key press event (key:%c) ***\n",
  44                clutter_event_get_key_symbol (event));
  45
  46       if (clutter_event_get_key_symbol (event) == CLUTTER_q)
  47         gtk_main_quit ();
  48     }
  49 }
  50
  51
  52 /* Timeline handler */
  53 void
  54 frame_cb (ClutterTimeline *timeline,
  55           gint             msecs,
  56           gpointer         data)
  57 {
  58   SuperOH        *oh = (SuperOH *)data;
  59   gint            i;
  60   guint           rotation = clutter_timeline_get_progress (timeline) * 360.0f;
  61
  62 #if TRAILS
  63   oh->bgpixb = clutter_stage_snapshot (CLUTTER_STAGE (stage),
  64                                        0, 0,
  65                                        WINWIDTH,
  66                                        WINHEIGHT);
  67   clutter_texture_set_pixbuf (CLUTTER_TEXTURE (oh->bgtex), oh->bgpixb);
  68   g_object_unref (G_OBJECT (oh->bgpixb));
  69   g_object_unref (stage);
  70 #endif
  71
  72   /* Rotate everything clockwise about stage center*/
  73   clutter_actor_set_rotation (CLUTTER_ACTOR (oh->group),
  74                               CLUTTER_Z_AXIS,
  75                               rotation,
  76                               WINWIDTH / 2, WINHEIGHT / 2, 0);
  77
  78   for (i = 0; i < NHANDS; i++)
  79     {
  80       /* rotate each hand around there centers */
  81       clutter_actor_set_rotation (oh->hand[i],
  82                                   CLUTTER_Z_AXIS,
  83                                   - 6.0 * rotation,
  84                                   clutter_actor_get_width (oh->hand[i]) / 2,
  85                                   clutter_actor_get_height (oh->hand[i]) / 2,
  86                                   0);
  87       if (fade == TRUE)
  88         clutter_actor_set_opacity (oh->hand[i], (255 - (rotation % 255)));
  89     }
  90
  91   /*
  92   clutter_actor_rotate_x (CLUTTER_ACTOR(oh->group),
  93                             75.0,
  94                             WINHEIGHT/2, 0);
  95   */
  96 }
  97
  98 static void
  99 clickity (GtkButton *button,
 100           gpointer ud)
 101 {
 102         fade = !fade;
 103 }
 104
 105 static void
 106 on_fullscreen (GtkButton *button,
 107                GtkWindow *window)
 108 {
 109   if (!fullscreen)
 110     {
 111       gtk_window_fullscreen (window);
 112       fullscreen = TRUE;
 113     }
 114   else
 115     {
 116       gtk_window_unfullscreen (window);
 117       fullscreen = FALSE;
 118     }
 119 }
 120
 121 int
 122 main (int argc, char *argv[])
 123 {
 124   ClutterTimeline *timeline;
 125   ClutterActor    *stage;
 126   ClutterColor     stage_color = { 0x61, 0x64, 0x8c, 0xff };
 127   GtkWidget       *window, *clutter;
 128   GtkWidget       *label, *button, *vbox;
 129   GdkPixbuf       *pixbuf;
 130   SuperOH         *oh;
 131   gint             i;
 132
 133   if (gtk_clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
 134     g_error ("Unable to initialize GtkClutter");
 135
 136   pixbuf = gdk_pixbuf_new_from_file ("redhand.png", NULL);
 137
 138   if (!pixbuf)
 139     g_error("pixbuf load failed");
 140
 141   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 142   g_signal_connect (window, "destroy",
 143                     G_CALLBACK (gtk_main_quit), NULL);
 144
 145   vbox = gtk_vbox_new (FALSE, 6);
 146   gtk_container_add (GTK_CONTAINER (window), vbox);
 147
 148   clutter = gtk_clutter_embed_new ();
 149   gtk_widget_set_size_request (clutter, WINWIDTH, WINHEIGHT);
 150
 151   gtk_container_add (GTK_CONTAINER (vbox), clutter);
 152
 153   stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (clutter));
 154
 155   label = gtk_label_new ("This is a label");
 156   gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
 157
 158   button = gtk_button_new_with_label ("This is a button...clicky");
 159   g_signal_connect (button, "clicked",
 160                     G_CALLBACK (clickity), NULL);
 161   gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
 162
 163   button = gtk_button_new_with_label ("Fullscreen");
 164   gtk_button_set_image (GTK_BUTTON (button),
 165                         gtk_image_new_from_stock (GTK_STOCK_FULLSCREEN,
 166                                                   GTK_ICON_SIZE_BUTTON));
 167   g_signal_connect (button, "clicked",
 168                     G_CALLBACK (on_fullscreen),
 169                     window);
 170   gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
 171
 172   button = gtk_button_new_from_stock (GTK_STOCK_QUIT);
 173   g_signal_connect_swapped (button, "clicked",
 174                             G_CALLBACK (gtk_widget_destroy),
 175                             window);
 176   gtk_box_pack_end (GTK_BOX (vbox), button, FALSE, FALSE, 0);
 177
 178   /* and its background color */
 179
 180   clutter_stage_set_color (CLUTTER_STAGE (stage),
 181                            &stage_color);
 182
 183   oh = g_new(SuperOH, 1);
 184
 185 #if TRAILS
 186   oh->bgtex = clutter_texture_new();
 187   clutter_actor_set_size (oh->bgtex, WINWIDTH, WINHEIGHT);
 188   clutter_actor_set_opacity (oh->bgtex, 0x99);
 189   clutter_group_add (CLUTTER_GROUP (stage), oh->bgtex);
 190 #endif
 191
 192   /* create a new group to hold multiple actors in a group */
 193   oh->group = CLUTTER_GROUP (clutter_group_new ());
 194
 195   for (i = 0; i < NHANDS; i++)
 196     {
 197       gint x, y, w, h;
 198 #if 1
 199       /* Create a texture from pixbuf, then clone in to same resources */
 200       if (i == 0)
 201        oh->hand[i] = gtk_clutter_texture_new_from_pixbuf (pixbuf);
 202      else
 203        oh->hand[i] = clutter_clone_new (oh->hand[0]);
 204 #else
 205       ClutterColor colour = { 255, 0, 0, 255 };
 206
 207       oh->hand[i] = clutter_rectangle_new_with_color (&colour);
 208       clutter_actor_set_size (oh->hand[i], 50, 50);
 209 #endif
 210       /* Place around a circle */
 211       w = clutter_actor_get_width (oh->hand[0]);
 212       h = clutter_actor_get_height (oh->hand[0]);
 213
 214       x = WINWIDTH/2  + RADIUS * cos (i * M_PI / (NHANDS/2)) - w/2;
 215       y = WINHEIGHT/2 + RADIUS * sin (i * M_PI / (NHANDS/2)) - h/2;
 216
 217       clutter_actor_set_position (oh->hand[i], x, y);
 218
 219       /* Add to our group group */
 220       clutter_group_add (oh->group, oh->hand[i]);
 221     }
 222
 223   /* Add the group to the stage */
 224   clutter_container_add_actor (CLUTTER_CONTAINER (stage),
 225                                CLUTTER_ACTOR (oh->group));
 226
 227   g_signal_connect (stage, "button-press-event",
 228                     G_CALLBACK (input_cb),
 229                     oh);
 230   g_signal_connect (stage, "key-release-event",
 231                     G_CALLBACK (input_cb),
 232                     oh);
 233
 234   gtk_widget_show_all (window);
 235
 236   /* Only show the actors after parent show otherwise it will just be
 237    * unrealized when the clutter foreign window is set. widget_show
 238    * will call show on the stage.
 239    */
 240   clutter_actor_show_all (CLUTTER_ACTOR (oh->group));
 241
 242   /* Create a timeline to manage animation */
 243   timeline = clutter_timeline_new (6000);
 244   g_object_set(timeline, "loop", TRUE, NULL);   /* have it loop */
 245
 246   /* fire a callback for frame change */
 247   g_signal_connect(timeline, "new-frame",  G_CALLBACK (frame_cb), oh);
 248
 249   /* and start it */
 250   clutter_timeline_start (timeline);
 251
 252   gtk_main();
 253
 254   return 0;
 255 }