vcs.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/gtk-clutter-embed.h>
   6 #include <clutter-gtk/gtk-clutter-util.h>
   7
   8 #define TRAILS 0
   9 #define NHANDS  2
  10 #define WINWIDTH   400
  11 #define WINHEIGHT  400
  12 #define RADIUS     150
  13
  14 typedef struct SuperOH
  15 {
  16   ClutterActor *hand[NHANDS], *bgtex;
  17   ClutterGroup   *group;
  18   GdkPixbuf      *bgpixb;
  19
  20 } SuperOH;
  21
  22 gboolean fade = 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       gint x, y;
  34
  35       clutter_event_get_coords (event, &x, &y);
  36
  37       a = clutter_stage_get_actor_at_pos (stage, x, y);
  38       if (a && (CLUTTER_IS_TEXTURE (a) || CLUTTER_IS_CLONE_TEXTURE (a)))
  39         clutter_actor_hide (a);
  40     }
  41   else if (event->type == CLUTTER_KEY_PRESS)
  42     {
  43       ClutterKeyEvent *kev = (ClutterKeyEvent *) event;
  44
  45       g_print ("*** key press event (key:%c) ***\n",
  46                clutter_key_event_symbol (kev));
  47
  48       if (clutter_key_event_symbol (kev) == CLUTTER_q)
  49         gtk_main_quit ();
  50     }
  51 }
  52
  53
  54 /* Timeline handler */
  55 void
  56 frame_cb (ClutterTimeline *timeline,
  57           gint             frame_num,
  58           gpointer         data)
  59 {
  60   SuperOH        *oh = (SuperOH *)data;
  61   gint            i;
  62
  63 #if TRAILS
  64   oh->bgpixb = clutter_stage_snapshot (CLUTTER_STAGE (stage),
  65                                        0, 0,
  66                                        WINWIDTH,
  67                                        WINHEIGHT);
  68   clutter_texture_set_pixbuf (CLUTTER_TEXTURE (oh->bgtex), oh->bgpixb);
  69   g_object_unref (G_OBJECT (oh->bgpixb));
  70   g_object_unref (stage);
  71 #endif
  72
  73   /* Rotate everything clockwise about stage center*/
  74   clutter_actor_set_rotation (CLUTTER_ACTOR (oh->group),
  75                               CLUTTER_Z_AXIS,
  76                               frame_num,
  77                               WINWIDTH / 2, WINHEIGHT / 2, 0);
  78
  79   for (i = 0; i < NHANDS; i++)
  80     {
  81       /* rotate each hand around there centers */
  82       clutter_actor_set_rotation (oh->hand[i],
  83                                   CLUTTER_Z_AXIS,
  84                                   - 6.0 * frame_num,
  85                                   clutter_actor_get_width (oh->hand[i]) / 2,
  86                                   clutter_actor_get_height (oh->hand[i]) / 2,
  87                                   0);
  88       if (fade == TRUE)
  89         clutter_actor_set_opacity (oh->hand[i], (255 - (frame_num % 255)));
  90     }
  91
  92   /*
  93   clutter_actor_rotate_x (CLUTTER_ACTOR(oh->group),
  94                             75.0,
  95                             WINHEIGHT/2, 0);
  96   */
  97 }
  98
  99 static void
 100 clickity (GtkButton *button,
 101           gpointer ud)
 102 {
 103         fade = !fade;
 104 }
 105
 106 int
 107 main (int argc, char *argv[])
 108 {
 109   ClutterTimeline *timeline;
 110   ClutterActor    *stage;
 111   ClutterColor     stage_color = { 0x61, 0x64, 0x8c, 0xff };
 112   GtkWidget       *window, *clutter, *socket_box;
 113   GtkWidget       *label, *button, *vbox;
 114   GdkPixbuf       *pixbuf;
 115   SuperOH         *oh;
 116   gint             i;
 117
 118   if (gtk_clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
 119     g_error ("Unable to initialize GtkClutter");
 120
 121   pixbuf = gdk_pixbuf_new_from_file ("redhand.png", NULL);
 122
 123   if (!pixbuf)
 124     g_error("pixbuf load failed");
 125
 126   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 127   g_signal_connect (window, "destroy",
 128                     G_CALLBACK (gtk_main_quit), NULL);
 129
 130   vbox = gtk_vbox_new (FALSE, 6);
 131   gtk_container_add (GTK_CONTAINER (window), vbox);
 132
 133   clutter = gtk_clutter_embed_new ();
 134   gtk_widget_set_size_request (clutter, WINWIDTH, WINHEIGHT);
 135
 136   gtk_container_add (GTK_CONTAINER (vbox), clutter);
 137
 138   stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (clutter));
 139
 140   label = gtk_label_new ("This is a label");
 141   gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
 142
 143   button = gtk_button_new_with_label ("This is a button...clicky");
 144   g_signal_connect (button, "clicked",
 145                     G_CALLBACK (clickity), NULL);
 146   gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
 147
 148   button = gtk_button_new_from_stock (GTK_STOCK_QUIT);
 149   g_signal_connect_swapped (button, "clicked",
 150                             G_CALLBACK (gtk_widget_destroy),
 151                             window);
 152   gtk_box_pack_end (GTK_BOX (vbox), button, FALSE, FALSE, 0);
 153
 154   /* and its background color */
 155
 156   clutter_stage_set_color (CLUTTER_STAGE (stage),
 157                            &stage_color);
 158
 159   oh = g_new(SuperOH, 1);
 160
 161 #if TRAILS
 162   oh->bgtex = clutter_texture_new();
 163   clutter_actor_set_size (oh->bgtex, WINWIDTH, WINHEIGHT);
 164   clutter_actor_set_opacity (oh->bgtex, 0x99);
 165   clutter_group_add (CLUTTER_GROUP (stage), oh->bgtex);
 166 #endif
 167
 168   /* create a new group to hold multiple actors in a group */
 169   oh->group = CLUTTER_GROUP (clutter_group_new ());
 170
 171   for (i = 0; i < NHANDS; i++)
 172     {
 173       gint x, y, w, h;
 174 #if 1
 175       /* Create a texture from pixbuf, then clone in to same resources */
 176       if (i == 0)
 177        oh->hand[i] = gtk_clutter_texture_new_from_pixbuf (pixbuf);
 178      else
 179        oh->hand[i] = clutter_clone_texture_new (CLUTTER_TEXTURE (oh->hand[0]));
 180 #else
 181       ClutterColor colour = { 255, 0, 0, 255 };
 182
 183       oh->hand[i] = clutter_rectangle_new_with_color (&colour);
 184       clutter_actor_set_size (oh->hand[i], 50, 50);
 185 #endif
 186       /* Place around a circle */
 187       w = clutter_actor_get_width (oh->hand[0]);
 188       h = clutter_actor_get_height (oh->hand[0]);
 189
 190       x = WINWIDTH/2  + RADIUS * cos (i * M_PI / (NHANDS/2)) - w/2;
 191       y = WINHEIGHT/2 + RADIUS * sin (i * M_PI / (NHANDS/2)) - h/2;
 192
 193       clutter_actor_set_position (oh->hand[i], x, y);
 194
 195       /* Add to our group group */
 196       clutter_group_add (oh->group, oh->hand[i]);
 197     }
 198
 199   /* Add the group to the stage */
 200   clutter_container_add_actor (CLUTTER_CONTAINER (clutter),
 201                                CLUTTER_ACTOR (oh->group));
 202
 203   g_signal_connect (stage, "button-press-event",
 204                     G_CALLBACK (input_cb),
 205                     oh);
 206   g_signal_connect (stage, "key-release-event",
 207                     G_CALLBACK (input_cb),
 208                     oh);
 209
 210   gtk_widget_show_all (window);
 211
 212   /* Only show the actors after parent show otherwise it will just be
 213    * unrealized when the clutter foreign window is set. widget_show
 214    * will call show on the stage.
 215    */
 216   clutter_actor_show_all (CLUTTER_ACTOR (oh->group));
 217
 218   /* Create a timeline to manage animation */
 219   timeline = clutter_timeline_new (360, 60); /* num frames, fps */
 220   g_object_set(timeline, "loop", TRUE, NULL);   /* have it loop */
 221
 222   /* fire a callback for frame change */
 223   g_signal_connect(timeline, "new-frame",  G_CALLBACK (frame_cb), oh);
 224
 225   /* and start it */
 226   clutter_timeline_start (timeline);
 227
 228   gtk_main();
 229
 230   return 0;
 231 }