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/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       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             msecs,
  58           gpointer         data)
  59 {
  60   SuperOH        *oh = (SuperOH *)data;
  61   gint            i;
  62   guint           rotation = clutter_timeline_get_progress (timeline) * 360.0f;
  63
  64 #if TRAILS
  65   oh->bgpixb = clutter_stage_snapshot (CLUTTER_STAGE (stage),
  66                                        0, 0,
  67                                        WINWIDTH,
  68                                        WINHEIGHT);
  69   clutter_texture_set_pixbuf (CLUTTER_TEXTURE (oh->bgtex), oh->bgpixb);
  70   g_object_unref (G_OBJECT (oh->bgpixb));
  71   g_object_unref (stage);
  72 #endif
  73
  74   /* Rotate everything clockwise about stage center*/
  75   clutter_actor_set_rotation (CLUTTER_ACTOR (oh->group),
  76                               CLUTTER_Z_AXIS,
  77                               rotation,
  78                               WINWIDTH / 2, WINHEIGHT / 2, 0);
  79
  80   for (i = 0; i < NHANDS; i++)
  81     {
  82       /* rotate each hand around there centers */
  83       clutter_actor_set_rotation (oh->hand[i],
  84                                   CLUTTER_Z_AXIS,
  85                                   - 6.0 * rotation,
  86                                   clutter_actor_get_width (oh->hand[i]) / 2,
  87                                   clutter_actor_get_height (oh->hand[i]) / 2,
  88                                   0);
  89       if (fade == TRUE)
  90         clutter_actor_set_opacity (oh->hand[i], (255 - (rotation % 255)));
  91     }
  92
  93   /*
  94   clutter_actor_rotate_x (CLUTTER_ACTOR(oh->group),
  95                             75.0,
  96                             WINHEIGHT/2, 0);
  97   */
  98 }
  99
 100 static void
 101 clickity (GtkButton *button,
 102           gpointer ud)
 103 {
 104         fade = !fade;
 105 }
 106
 107 static void
 108 on_fullscreen (GtkButton *button,
 109                GtkWindow *window)
 110 {
 111   if (!fullscreen)
 112     {
 113       gtk_window_fullscreen (window);
 114       fullscreen = TRUE;
 115     }
 116   else
 117     {
 118       gtk_window_unfullscreen (window);
 119       fullscreen = FALSE;
 120     }
 121 }
 122
 123 int
 124 main (int argc, char *argv[])
 125 {
 126   ClutterTimeline *timeline;
 127   ClutterActor    *stage;
 128   ClutterColor     stage_color = { 0x61, 0x64, 0x8c, 0xff };
 129   GtkWidget       *window, *clutter;
 130   GtkWidget       *label, *button, *vbox;
 131   GdkPixbuf       *pixbuf;
 132   SuperOH         *oh;
 133   gint             i;
 134
 135   if (gtk_clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
 136     g_error ("Unable to initialize GtkClutter");
 137
 138   pixbuf = gdk_pixbuf_new_from_file ("redhand.png", NULL);
 139
 140   if (!pixbuf)
 141     g_error("pixbuf load failed");
 142
 143   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 144   g_signal_connect (window, "destroy",
 145                     G_CALLBACK (gtk_main_quit), NULL);
 146
 147   vbox = gtk_vbox_new (FALSE, 6);
 148   gtk_container_add (GTK_CONTAINER (window), vbox);
 149
 150   clutter = gtk_clutter_embed_new ();
 151   gtk_widget_set_size_request (clutter, WINWIDTH, WINHEIGHT);
 152
 153   gtk_container_add (GTK_CONTAINER (vbox), clutter);
 154
 155   stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (clutter));
 156
 157   label = gtk_label_new ("This is a label");
 158   gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
 159
 160   button = gtk_button_new_with_label ("This is a button...clicky");
 161   g_signal_connect (button, "clicked",
 162                     G_CALLBACK (clickity), NULL);
 163   gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
 164
 165   button = gtk_button_new_with_label ("Fullscreen");
 166   gtk_button_set_image (GTK_BUTTON (button),
 167                         gtk_image_new_from_stock (GTK_STOCK_FULLSCREEN,
 168                                                   GTK_ICON_SIZE_BUTTON));
 169   g_signal_connect (button, "clicked",
 170                     G_CALLBACK (on_fullscreen),
 171                     window);
 172   gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
 173
 174   button = gtk_button_new_from_stock (GTK_STOCK_QUIT);
 175   g_signal_connect_swapped (button, "clicked",
 176                             G_CALLBACK (gtk_widget_destroy),
 177                             window);
 178   gtk_box_pack_end (GTK_BOX (vbox), button, FALSE, FALSE, 0);
 179
 180   /* and its background color */
 181
 182   clutter_stage_set_color (CLUTTER_STAGE (stage),
 183                            &stage_color);
 184
 185   oh = g_new(SuperOH, 1);
 186
 187 #if TRAILS
 188   oh->bgtex = clutter_texture_new();
 189   clutter_actor_set_size (oh->bgtex, WINWIDTH, WINHEIGHT);
 190   clutter_actor_set_opacity (oh->bgtex, 0x99);
 191   clutter_group_add (CLUTTER_GROUP (stage), oh->bgtex);
 192 #endif
 193
 194   /* create a new group to hold multiple actors in a group */
 195   oh->group = CLUTTER_GROUP (clutter_group_new ());
 196
 197   for (i = 0; i < NHANDS; i++)
 198     {
 199       gint x, y, w, h;
 200 #if 1
 201       /* Create a texture from pixbuf, then clone in to same resources */
 202       if (i == 0)
 203        oh->hand[i] = gtk_clutter_texture_new_from_pixbuf (pixbuf);
 204      else
 205        oh->hand[i] = clutter_clone_new (oh->hand[0]);
 206 #else
 207       ClutterColor colour = { 255, 0, 0, 255 };
 208
 209       oh->hand[i] = clutter_rectangle_new_with_color (&colour);
 210       clutter_actor_set_size (oh->hand[i], 50, 50);
 211 #endif
 212       /* Place around a circle */
 213       w = clutter_actor_get_width (oh->hand[0]);
 214       h = clutter_actor_get_height (oh->hand[0]);
 215
 216       x = WINWIDTH/2  + RADIUS * cos (i * M_PI / (NHANDS/2)) - w/2;
 217       y = WINHEIGHT/2 + RADIUS * sin (i * M_PI / (NHANDS/2)) - h/2;
 218
 219       clutter_actor_set_position (oh->hand[i], x, y);
 220
 221       /* Add to our group group */
 222       clutter_group_add (oh->group, oh->hand[i]);
 223     }
 224
 225   /* Add the group to the stage */
 226   clutter_container_add_actor (CLUTTER_CONTAINER (stage),
 227                                CLUTTER_ACTOR (oh->group));
 228
 229   g_signal_connect (stage, "button-press-event",
 230                     G_CALLBACK (input_cb),
 231                     oh);
 232   g_signal_connect (stage, "key-release-event",
 233                     G_CALLBACK (input_cb),
 234                     oh);
 235
 236   gtk_widget_show_all (window);
 237
 238   /* Only show the actors after parent show otherwise it will just be
 239    * unrealized when the clutter foreign window is set. widget_show
 240    * will call show on the stage.
 241    */
 242   clutter_actor_show_all (CLUTTER_ACTOR (oh->group));
 243
 244   /* Create a timeline to manage animation */
 245   timeline = clutter_timeline_new (6000);
 246   g_object_set(timeline, "loop", TRUE, NULL);   /* have it loop */
 247
 248   /* fire a callback for frame change */
 249   g_signal_connect(timeline, "new-frame",  G_CALLBACK (frame_cb), oh);
 250
 251   /* and start it */
 252   clutter_timeline_start (timeline);
 253
 254   gtk_main();
 255
 256   return 0;
 257 }