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.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       g_print ("*** button press event (button:%d) ***\n",
  35                bev->button);
  36
  37       e = clutter_stage_get_actor_at_pos (stage,
  38                                             clutter_button_event_x (bev),
  39                                             clutter_button_event_y (bev));
  40
  41       if (e)
  42         clutter_actor_hide(e);
  43     }
  44   else if (event->type == CLUTTER_KEY_PRESS)
  45     {
  46       ClutterKeyEvent *kev = (ClutterKeyEvent *) event;
  47
  48       g_print ("*** key press event (key:%c) ***\n",
  49                clutter_key_event_symbol (kev));
  50
  51       if (clutter_key_event_symbol (kev) == CLUTTER_q)
  52         clutter_main_quit ();
  53     }
  54 }
  55
  56
  57 /* Timeline handler */
  58 void
  59 frame_cb (ClutterTimeline *timeline,
  60           gint             frame_num,
  61           gpointer         data)
  62 {
  63   SuperOH        *oh = (SuperOH *)data;
  64   gint            i;
  65
  66 #if TRAILS
  67   oh->bgpixb = clutter_stage_snapshot (CLUTTER_STAGE (stage),
  68                                        0, 0,
  69                                        WINWIDTH,
  70                                        WINHEIGHT);
  71   clutter_texture_set_pixbuf (CLUTTER_TEXTURE (oh->bgtex), oh->bgpixb);
  72   g_object_unref (G_OBJECT (oh->bgpixb));
  73   g_object_unref (stage);
  74 #endif
  75
  76   /* Rotate everything clockwise about stage center*/
  77   clutter_actor_rotate_z (CLUTTER_ACTOR(oh->group),
  78                             frame_num,
  79                             WINWIDTH/2,
  80                             WINHEIGHT/2);
  81   for (i = 0; i < NHANDS; i++)
  82     {
  83       /* rotate each hand around there centers */
  84       clutter_actor_rotate_z (oh->hand[i],
  85                                 - 6.0 * frame_num,
  86                                 clutter_actor_get_width (oh->hand[i])/2,
  87                                 clutter_actor_get_height (oh->hand[i])/2);
  88       if (fade == TRUE) {
  89               clutter_actor_set_opacity (oh->hand[i], (255 - (frame_num % 255)));
  90       }
  91     }
  92
  93
  94   /*
  95   clutter_actor_rotate_x (CLUTTER_ACTOR(oh->group),
  96                             75.0,
  97                             WINHEIGHT/2, 0);
  98   */
  99 }
 100
 101 static void
 102 clickity (GtkButton *button,
 103           gpointer ud)
 104 {
 105         fade = !fade;
 106 }
 107
 108 int
 109 main (int argc, char *argv[])
 110 {
 111   ClutterTimeline *timeline;
 112   ClutterActor  *stage;
 113   ClutterColor     stage_color = { 0x61, 0x64, 0x8c, 0xff };
 114   GtkWidget       *window, *clutter;
 115   GtkWidget       *label, *button, *vbox;
 116   GdkPixbuf       *pixbuf;
 117   SuperOH         *oh;
 118   gint             i;
 119
 120   clutter_init (&argc, &argv);
 121   gtk_init (&argc, &argv);
 122
 123
 124   pixbuf = gdk_pixbuf_new_from_file ("redhand.png", NULL);
 125
 126   if (!pixbuf)
 127     g_error("pixbuf load failed");
 128
 129   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 130   g_signal_connect (window, "destroy",
 131                     G_CALLBACK (gtk_main_quit), NULL);
 132
 133   vbox = gtk_vbox_new (FALSE, 6);
 134   gtk_container_add (GTK_CONTAINER (window), vbox);
 135
 136   clutter = g_object_new (GTK_TYPE_CLUTTER, NULL);
 137   stage = gtk_clutter_get_stage (GTK_CLUTTER (clutter));
 138
 139   gtk_container_add (GTK_CONTAINER (vbox), clutter);
 140
 141   /* Set our stage size */
 142 /*   clutter_actor_set_size (stage, WINWIDTH, WINHEIGHT); */
 143
 144   label = gtk_label_new ("This is a label");
 145   gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
 146
 147   button = gtk_button_new_with_label ("This is a button...clicky");
 148   g_signal_connect (button, "clicked",
 149                     G_CALLBACK (clickity), NULL);
 150   gtk_box_pack_start (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 }