Julian Eisel
2bd9f9d976
This is especially useful when trying to add a node group instance, e.g. via drag & drop from the Outliner or Asset Browser. Previously this would just silently fail, with no information why. This is a source of confusion, e.g. earlier, it took me a moment to realize I was dragging a node group into itself, which failed of course. Blender should always try to help the user with useful error messages. Adds error messages like: "Nesting a node group inside of itself is not allowed", "Not a compositor node tree", etc. Adds a disabled hint return argument to node and node tree polling functions. On error the hint is reported, or could even be shown in advance (e.g. if checked via an operator poll option). Differential Revision: https://developer.blender.org/D10422 Reviewed by: Jacques Lucke
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2007 Blender Foundation.
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* All rights reserved.
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*/
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/** \file
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* \ingroup nodes
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*/
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#pragma once
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#include "DNA_listBase.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct bNodeTree;
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void node_group_label(struct bNodeTree *ntree, struct bNode *node, char *label, int maxlen);
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bool node_group_poll_instance(struct bNode *node,
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struct bNodeTree *nodetree,
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const char **r_disabled_hint);
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void ntree_update_reroute_nodes(struct bNodeTree *ntree);
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#ifdef __cplusplus
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}
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#endif
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