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/gtk-clutter-embed.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 gboolean fade = FALSE;
  22
  23 /* input handler */
  24 void
  25 input_cb (ClutterStage *stage,
  26           ClutterEvent *event,
  27           gpointer      data)
  28 {
  29   if (event->type == CLUTTER_BUTTON_PRESS)
  30     {
  31       ClutterActor *actor;
  32       gint x, y;
  33
  34       clutter_event_get_coords (event, &x, &y);
  35
  36       actor = clutter_stage_get_actor_at_pos (stage, x, y);
  37       if (actor)
  38         clutter_actor_hide (actor);
  39     }
  40   else if (event->type == CLUTTER_KEY_PRESS)
  41     {
  42       ClutterKeyEvent *kev = (ClutterKeyEvent *) event;
  43
  44       g_print ("*** key press event (key:%c) ***\n",
  45                clutter_key_event_symbol (kev));
  46
  47       if (clutter_key_event_symbol (kev) == CLUTTER_q)
  48         gtk_main_quit ();
  49     }
  50 }
  51
  52
  53 /* Timeline handler */
  54 void
  55 frame_cb (ClutterTimeline *timeline,
  56           gint             frame_num,
  57           gpointer         data)
  58 {
  59   SuperOH        *oh = (SuperOH *)data;
  60   gint            i;
  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                               frame_num,
  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 * frame_num,
  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 - (frame_num % 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 int
 106 main (int argc, char *argv[])
 107 {
 108   ClutterTimeline *timeline;
 109   ClutterActor    *stage;
 110   ClutterColor     stage_color = { 0x61, 0x64, 0x8c, 0xff };
 111   GtkWidget       *window, *clutter, *socket_box;
 112   GtkWidget       *label, *button, *vbox;
 113   GdkPixbuf       *pixbuf;
 114   SuperOH         *oh;
 115   gint             i;
 116
 117   clutter_init (&argc, &argv);
 118   gtk_init (&argc, &argv);
 119
 120   pixbuf = gdk_pixbuf_new_from_file ("redhand.png", NULL);
 121
 122   if (!pixbuf)
 123     g_error("pixbuf load failed");
 124
 125   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 126   g_signal_connect (window, "destroy",
 127                     G_CALLBACK (gtk_main_quit), NULL);
 128
 129   vbox = gtk_vbox_new (FALSE, 6);
 130   gtk_container_add (GTK_CONTAINER (window), vbox);
 131
 132   clutter = gtk_clutter_embed_new ();
 133   gtk_widget_set_size_request (clutter, WINWIDTH, WINHEIGHT);
 134
 135   gtk_container_add (GTK_CONTAINER (vbox), clutter);
 136
 137   stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (clutter));
 138
 139   label = gtk_label_new ("This is a label");
 140   gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
 141
 142   button = gtk_button_new_with_label ("This is a button...clicky");
 143   g_signal_connect (button, "clicked",
 144                     G_CALLBACK (clickity), NULL);
 145   gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
 146
 147   button = gtk_button_new_from_stock (GTK_STOCK_QUIT);
 148   g_signal_connect_swapped (button, "clicked",
 149                             G_CALLBACK (gtk_widget_destroy),
 150                             window);
 151   gtk_box_pack_end (GTK_BOX (vbox), button, FALSE, FALSE, 0);
 152
 153   /* and its background color */
 154
 155   clutter_stage_set_color (CLUTTER_STAGE (stage),
 156                            &stage_color);
 157
 158   oh = g_new(SuperOH, 1);
 159
 160 #if TRAILS
 161   oh->bgtex = clutter_texture_new();
 162   clutter_actor_set_size (oh->bgtex, WINWIDTH, WINHEIGHT);
 163   clutter_actor_set_opacity (oh->bgtex, 0x99);
 164   clutter_group_add (CLUTTER_GROUP (stage), oh->bgtex);
 165 #endif
 166
 167   /* create a new group to hold multiple actors in a group */
 168   oh->group = CLUTTER_GROUP (clutter_group_new());
 169
 170   for (i = 0; i < NHANDS; i++)
 171     {
 172       gint x, y, w, h;
 173 #if 1
 174       /* Create a texture from pixbuf, then clone in to same resources */
 175       if (i == 0)
 176        oh->hand[i] = clutter_texture_new_from_pixbuf (pixbuf);
 177      else
 178        oh->hand[i] = clutter_clone_texture_new (CLUTTER_TEXTURE(oh->hand[0]));
 179 #else
 180       ClutterColor colour = { 255, 0, 0, 255 };
 181
 182       oh->hand[i] = clutter_rectangle_new_with_color (&colour);
 183       clutter_actor_set_size (oh->hand[i], 50, 50);
 184 #endif
 185       /* Place around a circle */
 186       w = clutter_actor_get_width (oh->hand[0]);
 187       h = clutter_actor_get_height (oh->hand[0]);
 188
 189       x = WINWIDTH/2  + RADIUS * cos (i * M_PI / (NHANDS/2)) - w/2;
 190       y = WINHEIGHT/2 + RADIUS * sin (i * M_PI / (NHANDS/2)) - h/2;
 191
 192       clutter_actor_set_position (oh->hand[i], x, y);
 193
 194       /* Add to our group group */
 195       clutter_group_add (oh->group, oh->hand[i]);
 196     }
 197
 198   /* Add the group to the stage */
 199   clutter_group_add (CLUTTER_GROUP (stage), CLUTTER_ACTOR(oh->group));
 200
 201   /* Show everying ( and map window ) */
 202   clutter_actor_show_all (CLUTTER_ACTOR (oh->group));
 203
 204   g_signal_connect (stage, "button-press-event",
 205                     G_CALLBACK (input_cb),
 206                     oh);
 207   g_signal_connect (stage, "key-release-event",
 208                     G_CALLBACK (input_cb),
 209                     oh);
 210
 211   gtk_widget_show_all (window);
 212
 213   /* Create a timeline to manage animation */
 214   timeline = clutter_timeline_new (360, 60); /* num frames, fps */
 215   g_object_set(timeline, "loop", TRUE, NULL);   /* have it loop */
 216
 217   /* fire a callback for frame change */
 218   g_signal_connect(timeline, "new-frame",  G_CALLBACK (frame_cb), oh);
 219
 220   /* and start it */
 221   clutter_timeline_start (timeline);
 222
 223   gtk_main();
 224
 225   return 0;
 226 }