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   800
  10 #define WINHEIGHT  800
  11 #define RADIUS     250
  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       ClutterButtonEvent *bev = (ClutterButtonEvent *) event;
  32       ClutterActor *e;
  33
  34       e = clutter_stage_get_actor_at_pos (stage,
  35                                             clutter_button_event_x (bev),
  36                                             clutter_button_event_y (bev));
  37
  38       if (e)
  39         clutter_actor_hide(e);
  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_rotate_z (CLUTTER_ACTOR(oh->group),
  75                             frame_num,
  76                             WINWIDTH/2,
  77                             WINHEIGHT/2);
  78   for (i = 0; i < NHANDS; i++)
  79     {
  80       /* rotate each hand around there centers */
  81       clutter_actor_rotate_z (oh->hand[i],
  82                                 - 6.0 * frame_num,
  83                                 clutter_actor_get_width (oh->hand[i])/2,
  84                                 clutter_actor_get_height (oh->hand[i])/2);
  85       if (fade == TRUE) {
  86               clutter_actor_set_opacity (oh->hand[i], (255 - (frame_num % 255)));
  87       }
  88     }
  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_new ();
 133
 134   gtk_container_add (GTK_CONTAINER (vbox), clutter);
 135
 136   stage = gtk_clutter_get_stage (GTK_CLUTTER (clutter));
 137
 138   label = gtk_label_new ("This is a label");
 139   gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
 140
 141   button = gtk_button_new_with_label ("This is a button...clicky");
 142   g_signal_connect (button, "clicked",
 143                     G_CALLBACK (clickity), NULL);
 144   gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
 145
 146   button = gtk_button_new_from_stock (GTK_STOCK_QUIT);
 147   g_signal_connect_swapped (button, "clicked",
 148                             G_CALLBACK (gtk_widget_destroy),
 149                             window);
 150   gtk_box_pack_end (GTK_BOX (vbox), button, FALSE, FALSE, 0);
 151
 152   /* and its background color */
 153
 154   clutter_stage_set_color (CLUTTER_STAGE (stage),
 155                            &stage_color);
 156
 157   oh = g_new(SuperOH, 1);
 158
 159 #if TRAILS
 160   oh->bgtex = clutter_texture_new();
 161   clutter_actor_set_size (oh->bgtex, WINWIDTH, WINHEIGHT);
 162   clutter_actor_set_opacity (oh->bgtex, 0x99);
 163   clutter_group_add (CLUTTER_GROUP (stage), oh->bgtex);
 164 #endif
 165
 166   /* create a new group to hold multiple actors in a group */
 167   oh->group = CLUTTER_GROUP (clutter_group_new());
 168
 169   for (i = 0; i < NHANDS; i++)
 170     {
 171       gint x, y, w, h;
 172 #if 1
 173       /* Create a texture from pixbuf, then clone in to same resources */
 174       if (i == 0)
 175        oh->hand[i] = clutter_texture_new_from_pixbuf (pixbuf);
 176      else
 177        oh->hand[i] = clutter_clone_texture_new (CLUTTER_TEXTURE(oh->hand[0]));
 178 #else
 179       ClutterColor colour = { 255, 0, 0, 255 };
 180
 181       oh->hand[i] = clutter_rectangle_new_with_color (&colour);
 182       clutter_actor_set_size (oh->hand[i], 50, 50);
 183 #endif
 184       /* Place around a circle */
 185       w = clutter_actor_get_width (oh->hand[0]);
 186       h = clutter_actor_get_height (oh->hand[0]);
 187
 188       x = WINWIDTH/2  + RADIUS * cos (i * M_PI / (NHANDS/2)) - w/2;
 189       y = WINHEIGHT/2 + RADIUS * sin (i * M_PI / (NHANDS/2)) - h/2;
 190
 191       clutter_actor_set_position (oh->hand[i], x, y);
 192
 193       /* Add to our group group */
 194       clutter_group_add (oh->group, oh->hand[i]);
 195     }
 196
 197   /* Add the group to the stage */
 198   clutter_group_add (CLUTTER_GROUP (stage), CLUTTER_ACTOR(oh->group));
 199
 200   /* Show everying ( and map window ) */
 201   clutter_group_show_all (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   /* Create a timeline to manage animation */
 213   timeline = clutter_timeline_new (360, 60); /* num frames, fps */
 214   g_object_set(timeline, "loop", TRUE, NULL);   /* have it loop */
 215
 216   /* fire a callback for frame change */
 217   g_signal_connect(timeline, "new-frame",  G_CALLBACK (frame_cb), oh);
 218
 219   /* and start it */
 220   clutter_timeline_start (timeline);
 221
 222   gtk_main();
 223
 224   return 0;
 225 }