Beispiel #1
0
void
layers_actions_update (GimpActionGroup *group,
                       gpointer         data)
{
  GimpImage     *image     = action_data_get_image (data);
  GimpLayer     *layer      = NULL;
  GimpLayerMask *mask       = NULL;     /*  layer mask             */
  gboolean       fs         = FALSE;    /*  floating sel           */
  gboolean       ac         = FALSE;    /*  active channel         */
  gboolean       sel        = FALSE;
  gboolean       alpha      = FALSE;    /*  alpha channel present  */
  gboolean       indexed    = FALSE;    /*  is indexed             */
  gboolean       lock_alpha = FALSE;
  gboolean       text_layer = FALSE;
  GList         *next       = NULL;
  GList         *prev       = NULL;

  if (image)
    {
      fs      = (gimp_image_floating_sel (image) != NULL);
      ac      = (gimp_image_get_active_channel (image) != NULL);
      sel     = ! gimp_channel_is_empty (gimp_image_get_mask (image));
      indexed = (gimp_image_base_type (image) == GIMP_INDEXED);

      layer = gimp_image_get_active_layer (image);

      if (layer)
        {
          GList *list;

          mask       = gimp_layer_get_mask (layer);
          lock_alpha = gimp_layer_get_lock_alpha (layer);
          alpha      = gimp_drawable_has_alpha (GIMP_DRAWABLE (layer));

          list = g_list_find (GIMP_LIST (image->layers)->list, layer);

          if (list)
            {
              prev = g_list_previous (list);
              next = g_list_next (list);
            }

          if (layer)
            text_layer = gimp_drawable_is_text_layer (GIMP_DRAWABLE (layer));
        }
    }

#define SET_VISIBLE(action,condition) \
        gimp_action_group_set_action_visible (group, action, (condition) != 0)
#define SET_SENSITIVE(action,condition) \
        gimp_action_group_set_action_sensitive (group, action, (condition) != 0)
#define SET_ACTIVE(action,condition) \
        gimp_action_group_set_action_active (group, action, (condition) != 0)

  SET_VISIBLE   ("layers-text-tool",       text_layer && !ac);
  SET_SENSITIVE ("layers-edit-attributes", layer && !fs && !ac);

  SET_SENSITIVE ("layers-new",             image);
  SET_SENSITIVE ("layers-new-last-values", image);
  SET_SENSITIVE ("layers-duplicate",       layer && !fs && !ac);
  SET_SENSITIVE ("layers-delete",          layer && !ac);

  SET_SENSITIVE ("layers-select-top",      layer && !fs && !ac && prev);
  SET_SENSITIVE ("layers-select-bottom",   layer && !fs && !ac && next);
  SET_SENSITIVE ("layers-select-previous", layer && !fs && !ac && prev);
  SET_SENSITIVE ("layers-select-next",     layer && !fs && !ac && next);

  SET_SENSITIVE ("layers-raise",           layer && !fs && !ac && prev);
  SET_SENSITIVE ("layers-raise-to-top",    layer && !fs && !ac && prev);
  SET_SENSITIVE ("layers-lower",           layer && !fs && !ac && next);
  SET_SENSITIVE ("layers-lower-to-bottom", layer && !fs && !ac && next);

  SET_SENSITIVE ("layers-anchor",          layer &&  fs && !ac);
  SET_SENSITIVE ("layers-merge-down",      layer && !fs && !ac && next);
  SET_SENSITIVE ("layers-merge-layers",    layer && !fs && !ac);
  SET_SENSITIVE ("layers-flatten-image",   layer && !fs && !ac);

  SET_VISIBLE   ("layers-text-discard",             text_layer && !ac);
  SET_VISIBLE   ("layers-text-to-vectors",          text_layer && !ac);
  SET_VISIBLE   ("layers-text-along-vectors",       text_layer && !ac);
  SET_VISIBLE   ("layers-text-selection-replace",   text_layer && !ac);
  SET_VISIBLE   ("layers-text-selection-add",       text_layer && !ac);
  SET_VISIBLE   ("layers-text-selection-subtract",  text_layer && !ac);
  SET_VISIBLE   ("layers-text-selection-intersect", text_layer && !ac);

  SET_SENSITIVE ("layers-resize",          layer && !ac);
  SET_SENSITIVE ("layers-resize-to-image", layer && !ac);
  SET_SENSITIVE ("layers-scale",           layer && !ac);

  SET_SENSITIVE ("layers-crop",            layer && sel);

  SET_SENSITIVE ("layers-alpha-add",       layer && !fs && !alpha);
  SET_SENSITIVE ("layers-alpha-remove",    layer && !fs &&  alpha);

  SET_SENSITIVE ("layers-lock-alpha", layer);
  SET_ACTIVE    ("layers-lock-alpha", lock_alpha);

  SET_SENSITIVE ("layers-mask-add",    layer && !fs && !ac && !mask);
  SET_SENSITIVE ("layers-mask-apply",  layer && !fs && !ac &&  mask);
  SET_SENSITIVE ("layers-mask-delete", layer && !fs && !ac &&  mask);

  SET_SENSITIVE ("layers-mask-edit",    layer && !fs && !ac &&  mask);
  SET_SENSITIVE ("layers-mask-show",    layer && !fs && !ac &&  mask);
  SET_SENSITIVE ("layers-mask-disable", layer && !fs && !ac &&  mask);

  SET_ACTIVE ("layers-mask-edit",    mask && gimp_layer_mask_get_edit (mask));
  SET_ACTIVE ("layers-mask-show",    mask && gimp_layer_mask_get_show (mask));
  SET_ACTIVE ("layers-mask-disable", mask && !gimp_layer_mask_get_apply (mask));

  SET_SENSITIVE ("layers-mask-selection-replace",   layer && !fs && !ac && mask);
  SET_SENSITIVE ("layers-mask-selection-add",       layer && !fs && !ac && mask);
  SET_SENSITIVE ("layers-mask-selection-subtract",  layer && !fs && !ac && mask);
  SET_SENSITIVE ("layers-mask-selection-intersect", layer && !fs && !ac && mask);

  SET_SENSITIVE ("layers-alpha-selection-replace",   layer && !fs && !ac);
  SET_SENSITIVE ("layers-alpha-selection-add",       layer && !fs && !ac);
  SET_SENSITIVE ("layers-alpha-selection-subtract",  layer && !fs && !ac);
  SET_SENSITIVE ("layers-alpha-selection-intersect", layer && !fs && !ac);

#undef SET_VISIBLE
#undef SET_SENSITIVE
#undef SET_ACTIVE
}
void
layers_actions_update (GimpActionGroup *group,
                       gpointer         data)
{
  GimpImage     *image          = action_data_get_image (data);
  GimpLayer     *layer          = NULL;
  GimpLayerMask *mask           = NULL;     /*  layer mask             */
  gboolean       fs             = FALSE;    /*  floating sel           */
  gboolean       ac             = FALSE;    /*  active channel         */
  gboolean       sel            = FALSE;
  gboolean       alpha          = FALSE;    /*  alpha channel present  */
  gboolean       indexed        = FALSE;    /*  is indexed             */
  gboolean       lock_alpha     = FALSE;
  gboolean       can_lock_alpha = FALSE;
  gboolean       text_layer     = FALSE;
  gboolean       writable       = FALSE;
  gboolean       children       = FALSE;
  GList         *next           = NULL;
  GList         *next_visible   = NULL;
  GList         *prev           = NULL;

  if (image)
    {
      fs      = (gimp_image_get_floating_selection (image) != NULL);
      ac      = (gimp_image_get_active_channel (image) != NULL);
      sel     = ! gimp_channel_is_empty (gimp_image_get_mask (image));
      indexed = (gimp_image_base_type (image) == GIMP_INDEXED);

      layer = gimp_image_get_active_layer (image);

      if (layer)
        {
          GList *layer_list;
          GList *list;

          mask           = gimp_layer_get_mask (layer);
          lock_alpha     = gimp_layer_get_lock_alpha (layer);
          can_lock_alpha = gimp_layer_can_lock_alpha (layer);
          alpha          = gimp_drawable_has_alpha (GIMP_DRAWABLE (layer));
          writable       = ! gimp_item_is_content_locked (GIMP_ITEM (layer));

          if (gimp_viewable_get_children (GIMP_VIEWABLE (layer)))
            children = TRUE;

          layer_list = gimp_item_get_container_iter (GIMP_ITEM (layer));

          list = g_list_find (layer_list, layer);

          if (list)
            {
              prev = g_list_previous (list);
              next = g_list_next (list);

              for (next_visible = next;
                   next_visible;
                   next_visible = g_list_next (next_visible))
                {
                  if (gimp_item_get_visible (next_visible->data))
                    {
                      /*  "next_visible" is actually "next_visible" and
                       *  "writable" and "not group"
                       */
                      if (gimp_item_is_content_locked (next_visible->data) ||
                          gimp_viewable_get_children (next_visible->data))
                        next_visible = NULL;

                      break;
                    }
                }
            }

          text_layer = gimp_item_is_text_layer (GIMP_ITEM (layer));
        }
    }

#define SET_VISIBLE(action,condition) \
        gimp_action_group_set_action_visible (group, action, (condition) != 0)
#define SET_SENSITIVE(action,condition) \
        gimp_action_group_set_action_sensitive (group, action, (condition) != 0)
#define SET_ACTIVE(action,condition) \
        gimp_action_group_set_action_active (group, action, (condition) != 0)
#define SET_LABEL(action,label) \
        gimp_action_group_set_action_label (group, action, label)

  SET_VISIBLE   ("layers-text-tool",        text_layer && !ac);
  SET_SENSITIVE ("layers-edit-attributes",  layer && !fs && !ac);

  if (layer && gimp_layer_is_floating_sel (layer))
    {
      SET_LABEL ("layers-new",             C_("layers-action", "To _New Layer"));
      SET_LABEL ("layers-new-last-values", C_("layers-action", "To _New Layer"));
    }
  else
    {
      SET_LABEL ("layers-new",             C_("layers-action", "_New Layer..."));
      SET_LABEL ("layers-new-last-values", C_("layers-action", "_New Layer"));
    }

  SET_SENSITIVE ("layers-new",              image);
  SET_SENSITIVE ("layers-new-last-values",  image);
  SET_SENSITIVE ("layers-new-from-visible", image);
  SET_SENSITIVE ("layers-new-group",        image && !indexed);
  SET_SENSITIVE ("layers-duplicate",        layer && !fs && !ac);
  SET_SENSITIVE ("layers-delete",           layer && !ac);

  SET_SENSITIVE ("layers-select-top",       layer && !fs && !ac && prev);
  SET_SENSITIVE ("layers-select-bottom",    layer && !fs && !ac && next);
  SET_SENSITIVE ("layers-select-previous",  layer && !fs && !ac && prev);
  SET_SENSITIVE ("layers-select-next",      layer && !fs && !ac && next);

  SET_SENSITIVE ("layers-raise",            layer && !fs && !ac && prev);
  SET_SENSITIVE ("layers-raise-to-top",     layer && !fs && !ac && prev);
  SET_SENSITIVE ("layers-lower",            layer && !fs && !ac && next);
  SET_SENSITIVE ("layers-lower-to-bottom",  layer && !fs && !ac && next);

  SET_SENSITIVE ("layers-anchor",           layer &&  fs && !ac);
  SET_SENSITIVE ("layers-merge-down",       layer && !fs && !ac && next_visible);
  SET_VISIBLE   ("layers-merge-group",      children);
  SET_SENSITIVE ("layers-merge-group",      layer && !fs && !ac && children);
  SET_SENSITIVE ("layers-merge-layers",     layer && !fs && !ac);
  SET_SENSITIVE ("layers-flatten-image",    layer && !fs && !ac);

  SET_VISIBLE   ("layers-text-discard",             text_layer && !ac);
  SET_VISIBLE   ("layers-text-to-vectors",          text_layer && !ac);
  SET_VISIBLE   ("layers-text-along-vectors",       text_layer && !ac);

  SET_SENSITIVE ("layers-resize",          writable && !ac);
  SET_SENSITIVE ("layers-resize-to-image", writable && !ac);
  SET_SENSITIVE ("layers-scale",           writable && !ac);

  SET_SENSITIVE ("layers-crop",            writable && sel);

  SET_SENSITIVE ("layers-alpha-add",       writable && !children && !fs && !alpha);
  SET_SENSITIVE ("layers-alpha-remove",    writable && !children && !fs &&  alpha);

  SET_SENSITIVE ("layers-lock-alpha", can_lock_alpha);
  SET_ACTIVE    ("layers-lock-alpha", lock_alpha);

  SET_SENSITIVE ("layers-mask-add",    layer    && !fs && !ac && !mask && !children);
  SET_SENSITIVE ("layers-mask-apply",  writable && !fs && !ac &&  mask && !children);
  SET_SENSITIVE ("layers-mask-delete", layer    && !fs && !ac &&  mask);

  SET_SENSITIVE ("layers-mask-edit",    layer && !fs && !ac &&  mask);
  SET_SENSITIVE ("layers-mask-show",    layer && !fs && !ac &&  mask);
  SET_SENSITIVE ("layers-mask-disable", layer && !fs && !ac &&  mask);

  SET_ACTIVE ("layers-mask-edit",    mask && gimp_layer_mask_get_edit (mask));
  SET_ACTIVE ("layers-mask-show",    mask && gimp_layer_mask_get_show (mask));
  SET_ACTIVE ("layers-mask-disable", mask && !gimp_layer_mask_get_apply (mask));

  SET_SENSITIVE ("layers-mask-selection-replace",   layer && !fs && !ac && mask);
  SET_SENSITIVE ("layers-mask-selection-add",       layer && !fs && !ac && mask);
  SET_SENSITIVE ("layers-mask-selection-subtract",  layer && !fs && !ac && mask);
  SET_SENSITIVE ("layers-mask-selection-intersect", layer && !fs && !ac && mask);

  SET_SENSITIVE ("layers-alpha-selection-replace",   layer && !fs && !ac);
  SET_SENSITIVE ("layers-alpha-selection-add",       layer && !fs && !ac);
  SET_SENSITIVE ("layers-alpha-selection-subtract",  layer && !fs && !ac);
  SET_SENSITIVE ("layers-alpha-selection-intersect", layer && !fs && !ac);

#undef SET_VISIBLE
#undef SET_SENSITIVE
#undef SET_ACTIVE
#undef SET_LABEL
}