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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2009 Blender Foundation. All rights reserved. */
/** \file
* \ingroup editors
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
struct ID;
struct Main;
struct Scene;
struct ScrArea;
struct SpaceNode;
struct Tex;
struct View2D;
struct bContext;
struct bNode;
struct bNodeSocket;
struct bNodeSocketType;
struct bNodeTree;
struct bNodeTreeType;
struct bNodeType;
typedef enum {
NODE_TOP = 1,
NODE_BOTTOM = 2,
NODE_LEFT = 4,
NODE_RIGHT = 8,
} NodeBorder;
#define NODE_GRID_STEP_SIZE U.widget_unit /* Based on the grid nodes snap to. */
#define NODE_EDGE_PAN_INSIDE_PAD 2
#define NODE_EDGE_PAN_OUTSIDE_PAD 0 /* Disable clamping for node panning, use whole screen. */
#define NODE_EDGE_PAN_SPEED_RAMP 1
#define NODE_EDGE_PAN_MAX_SPEED 26 /* In UI units per second, slower than default. */
#define NODE_EDGE_PAN_DELAY 0.5f
#define NODE_EDGE_PAN_ZOOM_INFLUENCE 0.5f
/* space_node.cc */
void ED_node_cursor_location_get(const struct SpaceNode *snode, float value[2]);
void ED_node_cursor_location_set(struct SpaceNode *snode, const float value[2]);
int ED_node_tree_path_length(struct SpaceNode *snode);
void ED_node_tree_path_get(struct SpaceNode *snode, char *value);
void ED_node_tree_start(struct SpaceNode *snode,
struct bNodeTree *ntree,
struct ID *id,
struct ID *from);
void ED_node_tree_push(struct SpaceNode *snode, struct bNodeTree *ntree, struct bNode *gnode);
void ED_node_tree_pop(struct SpaceNode *snode);
int ED_node_tree_depth(struct SpaceNode *snode);
struct bNodeTree *ED_node_tree_get(struct SpaceNode *snode, int level);
void ED_node_set_active_viewer_key(struct SpaceNode *snode);
/* drawnode.cc */
void ED_node_init_butfuncs(void);
void ED_init_custom_node_type(struct bNodeType *ntype);
void ED_init_custom_node_socket_type(struct bNodeSocketType *stype);
void ED_init_standard_node_socket_type(struct bNodeSocketType *stype);
void ED_init_node_socket_type_virtual(struct bNodeSocketType *stype);
void ED_node_sample_set(const float col[4]);
void ED_node_draw_snap(
struct View2D *v2d, const float cent[2], float size, NodeBorder border, unsigned int pos);
/* node_draw.cc */
/**
* Draw a single node socket at default size.
* \note this is only called from external code, internally #node_socket_draw_nested() is used for
* optimized drawing of multiple/all sockets of a node.
*/
void ED_node_socket_draw(struct bNodeSocket *sock,
const struct rcti *rect,
const float color[4],
float scale);
void ED_node_tree_update(const struct bContext *C);
void ED_node_tag_update_id(struct ID *id);
float ED_node_grid_size(void);
/* node_relationships.cc */
/**
* Test == 0, clear all intersect flags.
*/
void ED_node_link_intersect_test(struct ScrArea *area, int test);
/**
* Assumes link with #NODE_LINKFLAG_HILITE set.
*/
void ED_node_link_insert(struct Main *bmain, struct ScrArea *area);
/* node_edit.cc */
void ED_node_set_tree_type(struct SpaceNode *snode, struct bNodeTreeType *typeinfo);
bool ED_node_is_compositor(struct SpaceNode *snode);
bool ED_node_is_shader(struct SpaceNode *snode);
bool ED_node_is_texture(struct SpaceNode *snode);
bool ED_node_is_geometry(struct SpaceNode *snode);
/**
* Assumes nothing being done in ntree yet, sets the default in/out node.
* Called from shading buttons or header.
*/
void ED_node_shader_default(const struct bContext *C, struct ID *id);
/**
* Assumes nothing being done in ntree yet, sets the default in/out node.
* Called from shading buttons or header.
*/
void ED_node_composit_default(const struct bContext *C, struct Scene *scene);
/**
* Assumes nothing being done in ntree yet, sets the default in/out node.
* Called from shading buttons or header.
*/
void ED_node_texture_default(const struct bContext *C, struct Tex *tex);
void ED_node_post_apply_transform(struct bContext *C, struct bNodeTree *ntree);
void ED_node_set_active(struct Main *bmain,
struct SpaceNode *snode,
struct bNodeTree *ntree,
struct bNode *node,
bool *r_active_texture_changed);
/**
* Call after one or more node trees have been changed and tagged accordingly.
*
* This function will make sure that other parts of Blender update accordingly. For example, if the
* node group interface changed, parent node groups have to be updated as well.
*
* Additionally, this will send notifiers and tag the depsgraph based on the changes. Depsgraph
* relation updates have to be triggered by the caller.
*
* \param C: Context if available. This can be null.
* \param bmain: Main whose data-blocks should be updated based on the changes.
* \param ntree: Under some circumstances the caller knows that only one node tree has
* changed since the last update. In this case the function may be able to skip scanning #bmain
* for other things that have to be changed. It may still scan #bmain if the interface of the
* node tree has changed.
*/
void ED_node_tree_propagate_change(const struct bContext *C,
struct Main *bmain,
struct bNodeTree *ntree);
/**
* \param scene_owner: is the owner of the job,
* we don't use it for anything else currently so could also be a void pointer,
* but for now keep it an 'Scene' for consistency.
*
* \note only call from spaces `refresh` callbacks, not direct! - use with care.
*/
void ED_node_composite_job(const struct bContext *C,
struct bNodeTree *nodetree,
struct Scene *scene_owner);
/* node_ops.cc */
void ED_operatormacros_node(void);
/* node_view.cc */
/**
* Returns mouse position in image space.
*/
bool ED_space_node_get_position(struct Main *bmain,
struct SpaceNode *snode,
struct ARegion *region,
const int mval[2],
float fpos[2]);
/**
* Returns color in linear space, matching #ED_space_image_color_sample().
* And here we've got recursion in the comments tips...
*/
bool ED_space_node_color_sample(struct Main *bmain,
struct SpaceNode *snode,
struct ARegion *region,
const int mval[2],
float r_col[3]);
#ifdef __cplusplus
}
#endif
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