git.maemo.org Git - clutter-gtk/blob - examples/gtk-clutter-viewport.c

   1 #include <gtk/gtk.h>
   2 #include <clutter/clutter.h>
   3
   4 #include <clutter-gtk/clutter-gtk.h>
   5
   6 static GTimer *timer = NULL;
   7
   8 static void
   9 on_load_finished (ClutterTexture *texture,
  10                   const GError   *error,
  11                   gpointer        user_data)
  12 {
  13   if (error)
  14     g_warning ("Unable to load texture: %s", error->message);
  15
  16   if (timer)
  17     g_print ("%s: load time: %.3f secs\n",
  18              G_STRLOC,
  19              g_timer_elapsed (timer, NULL));
  20 }
  21
  22 static void
  23 on_size_change (ClutterTexture *texture,
  24                 gint            width,
  25                 gint            height)
  26 {
  27   g_print ("%s: tex.size = %d, %d\n", G_STRLOC, width, height);
  28 }
  29
  30 int
  31 main (int argc, char *argv[])
  32 {
  33   ClutterActor    *stage, *viewport, *tex;
  34   ClutterColor     stage_color = { 0x61, 0x64, 0x8c, 0xff };
  35   GtkWidget       *window, *embed;
  36   GtkWidget       *table, *scrollbar, *slider;
  37   GtkAdjustment   *h_adjustment, *v_adjustment, *z_adjustment;
  38
  39   g_thread_init (NULL);
  40   gdk_threads_init ();
  41   clutter_threads_init ();
  42
  43   if (gtk_clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
  44     g_error ("Unable to initialize GtkClutter");
  45
  46   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  47   g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
  48
  49   table = gtk_table_new (3, 2, FALSE);
  50   gtk_container_add (GTK_CONTAINER (window), table);
  51   gtk_widget_show (table);
  52
  53   embed = gtk_clutter_embed_new ();
  54   gtk_table_attach (GTK_TABLE (table), embed,
  55                     0, 1,
  56                     0, 1,
  57                     GTK_EXPAND | GTK_FILL,
  58                     GTK_EXPAND | GTK_FILL,
  59                     0, 0);
  60   gtk_widget_set_size_request (embed, 320, 240);
  61   gtk_widget_show (embed);
  62
  63   stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (embed));
  64   clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
  65
  66   viewport = gtk_clutter_viewport_new (NULL, NULL, NULL);
  67   clutter_actor_set_size (viewport, 320, 240);
  68   clutter_container_add_actor (CLUTTER_CONTAINER (stage), viewport);
  69
  70   if (argc < 2)
  71     tex = gtk_clutter_texture_new_from_stock (embed,
  72                                               GTK_STOCK_DIALOG_INFO,
  73                                               GTK_ICON_SIZE_DIALOG);
  74   else
  75     {
  76       GError *error = NULL;
  77
  78       tex = clutter_texture_new ();
  79       clutter_texture_set_load_async (CLUTTER_TEXTURE (tex), TRUE);
  80       g_signal_connect (tex,
  81                         "size-change", G_CALLBACK (on_size_change),
  82                         NULL);
  83       g_signal_connect (tex,
  84                         "load-finished", G_CALLBACK (on_load_finished),
  85                         NULL);
  86
  87       timer = g_timer_new ();
  88
  89       clutter_texture_set_from_file (CLUTTER_TEXTURE (tex), argv[1], &error);
  90       if (error)
  91         {
  92           g_warning ("Unable to open `%s': %s", argv[1], error->message);
  93           g_error_free (error);
  94         }
  95       else
  96         g_print ("%s: load time: %.3f secs\n",
  97                  G_STRLOC,
  98                  g_timer_elapsed (timer, NULL));
  99
 100       g_print ("%s: tex.size = %.2f, %.2f\n",
 101                G_STRLOC,
 102                clutter_actor_get_width (tex),
 103                clutter_actor_get_height (tex));
 104     }
 105
 106   clutter_container_add_actor (CLUTTER_CONTAINER (viewport), tex);
 107
 108   gtk_clutter_scrollable_get_adjustments (GTK_CLUTTER_SCROLLABLE (viewport),
 109                                           &h_adjustment,
 110                                           &v_adjustment);
 111
 112   scrollbar = gtk_vscrollbar_new (v_adjustment);
 113   gtk_table_attach (GTK_TABLE (table), scrollbar,
 114                     1, 2,
 115                     0, 1,
 116                     0, GTK_EXPAND | GTK_FILL,
 117                     0, 0);
 118   gtk_widget_show (scrollbar);
 119
 120   scrollbar = gtk_hscrollbar_new (h_adjustment);
 121   gtk_table_attach (GTK_TABLE (table), scrollbar,
 122                     0, 1,
 123                     1, 2,
 124                     GTK_EXPAND | GTK_FILL, 0,
 125                     0, 0);
 126   gtk_widget_show (scrollbar);
 127
 128   z_adjustment =
 129     gtk_clutter_zoomable_get_adjustment (GTK_CLUTTER_ZOOMABLE (viewport));
 130
 131   slider = gtk_hscale_new (z_adjustment);
 132   gtk_table_attach (GTK_TABLE (table), slider,
 133                     0, 1,
 134                     2, 3,
 135                     GTK_EXPAND | GTK_FILL, 0,
 136                     0, 0);
 137   gtk_widget_show (slider);
 138
 139   gtk_widget_show (window);
 140
 141   gtk_main();
 142
 143   return 0;
 144 }