示例#1
0
static void
get_property(GObject      *gobject,
             guint         property_id,
             GValue       *value,
             GParamSpec   *pspec)
{
    GeglGtkView *self = GEGL_GTK_VIEW(gobject);
    ViewHelper *priv = GET_PRIVATE(self);

    switch (property_id) {
    case PROP_NODE:
        g_value_set_object(value, gegl_gtk_view_get_node(self));
        break;
    case PROP_X:
        g_value_set_float(value, gegl_gtk_view_get_x(self));
        break;
    case PROP_BLOCK:
        g_value_set_boolean(value, priv->block);
        break;
    case PROP_Y:
        g_value_set_float(value, gegl_gtk_view_get_y(self));
        break;
    case PROP_SCALE:
        g_value_set_double(value, gegl_gtk_view_get_scale(self));
        break;
    case PROP_AUTOSCALE_POLICY:
        g_value_set_enum(value, gegl_gtk_view_get_autoscale_policy(self));
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID(gobject, property_id, pspec);
        break;
    }
}
gint layer_node_selected (gpointer host, GeglEditor* editor, gint node_id)
{
  GeglEditorLayer*	self = (GeglEditorLayer*)host;
  GeglNode*		node = NULL;
  GSList*		pair = self->pairs;
  for(;pair != NULL; pair = pair->next)
    {
      node_id_pair*	data = pair->data;
      if(data->id == node_id)
	{
	  node = data->node;
	  break;
	}
    }

  g_assert(node != NULL);

  GeglNode** nodes;
  const gchar** pads;
  gint num = gegl_node_get_consumers(node, "output", &nodes, &pads);

  int i;
  g_print("%s: %d consumer(s)\n", gegl_node_get_operation(node), num);
  for(i = 0; i < num; i++)
    {
      g_print("Connection: (%s to %s)\n", gegl_node_get_operation(node), gegl_node_get_operation(nodes[0]), pads[0]);
    }
  g_print("Input from: %s\n", gegl_node_get_operation(gegl_node_get_producer(node, "input", NULL)));

  //  g_print("selected: %s\n", gegl_node_get_operation(node));

  guint		n_props;
  GParamSpec**	properties = gegl_operation_list_properties(gegl_node_get_operation(node), &n_props);

  //TODO: only create enough columns for the properties which will actually be included (i.e. ignoring GeglBuffer props)
  GtkTable	*prop_table = GTK_TABLE(gtk_table_new(2, n_props, FALSE));

  int d;
  for(d = 0, i = 0; i < n_props; i++, d++)
    {
      GParamSpec*	prop = properties[i];
      GType		type = prop->value_type;
      const gchar*		name = prop->name;

      GtkWidget*	name_label = gtk_label_new(name);
      gtk_misc_set_alignment(GTK_MISC(name_label), 0, 0.5);


      GtkWidget*	value_entry = gtk_entry_new();

      gchar buf[256] = "*";	//can probably be smaller; In fact, can probably do this without sprintf and a buffer. TODO: look at g_string

      gint	i_value;
      gdouble	d_value;
      gchar*	str_value;
      gboolean skip = FALSE;

      switch(type)
	{
	case G_TYPE_INT:
	  gegl_node_get(node, name, &i_value, NULL);
	  sprintf(buf, "%d", i_value);
	  break;
	case G_TYPE_DOUBLE:
	  gegl_node_get(node, name, &d_value, NULL);
	  sprintf(buf, "%.3f", d_value);
	  break;
	case G_TYPE_STRING:
	  gegl_node_get(node, name, &str_value, NULL);
	  sprintf(buf, "%s", str_value);
	  break;
	}

      if(type == GEGL_TYPE_BUFFER) {
	skip = TRUE;
	d--;
      } else if( type == GEGL_TYPE_COLOR) {
	skip = TRUE;
	GtkWidget *color_button = gtk_button_new_with_label("Select");

	select_color_info* info = malloc(sizeof(select_color_info));
	info->node = node;
	info->property = name;
	info->layer = self;

	g_signal_connect(color_button, "clicked", (GCallback)select_color, info);

	gtk_table_attach(prop_table, name_label, 0, 1, d, d+1, GTK_FILL, GTK_FILL, 1, 1);
	gtk_table_attach(prop_table, color_button, 1, 2, d, d+1, GTK_EXPAND | GTK_FILL | GTK_SHRINK, GTK_FILL, 1, 1);
      }

      if(!skip)
	{
	  gtk_entry_set_text(GTK_ENTRY(value_entry), buf);

	  gtk_entry_set_width_chars(GTK_ENTRY(value_entry), 2);
	  struct text_prop_data	*data = malloc(sizeof(struct text_prop_data));	//TODO store this in a list and free it when the node is deselected
	  data->node		      = node;
	  data->property		      = name;
	  data->prop_type		      = type;
	  data->layer		      = self;
	  g_signal_connect(value_entry, "activate", G_CALLBACK(text_property_changed), data);

	  gtk_table_attach(prop_table, name_label, 0, 1, d, d+1, GTK_FILL, GTK_FILL, 1, 1);
	  gtk_table_attach(prop_table, value_entry, 1, 2, d, d+1, GTK_EXPAND | GTK_FILL | GTK_SHRINK, GTK_FILL, 1, 1);
	}
    }

  //  gegl_node_process(node);
  GeglGtkView *gtk_view = gegl_gtk_view_new_for_node(node);

  GeglRectangle rect = gegl_node_get_bounding_box(node);

  if(gegl_rectangle_is_infinite_plane(&rect))
    {
      gegl_gtk_view_set_autoscale_policy(gtk_view, GEGL_GTK_VIEW_AUTOSCALE_DISABLED);
      gegl_gtk_view_set_scale(gtk_view, 1.0);
      g_print("Disable autoscale: scale=%f, x=%f, y=%f\n", gegl_gtk_view_get_scale(gtk_view),
      gegl_gtk_view_get_x(gtk_view), gegl_gtk_view_get_y(gtk_view));
    }

  gtk_widget_show(GTK_WIDGET(gtk_view));

  //TODO: draw checkerboard under preview to indicate transparency

  gtk_box_pack_start(GTK_BOX(self->prop_box), GTK_WIDGET(prop_table), FALSE, TRUE, 0);
  gtk_box_pack_start(GTK_BOX(self->prop_box), GTK_WIDGET(gtk_view), TRUE, TRUE, 10);

  GtkWidget* label = gtk_label_new("Click the image\nto open in a\nnew window");
  gtk_label_set_justify(GTK_LABEL(label), GTK_JUSTIFY_CENTER);
  gtk_box_pack_start(GTK_BOX(self->prop_box), label, FALSE, TRUE, 10);

  gtk_widget_show_all(self->prop_box);
}