366 lines
12 KiB
C++
366 lines
12 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "ED_viewer_path.hh"
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#include "ED_screen.h"
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#include "BKE_context.h"
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#include "BKE_main.h"
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#include "BKE_node_runtime.hh"
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#include "BKE_workspace.h"
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#include "BLI_listbase.h"
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#include "BLI_vector.hh"
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#include "DNA_modifier_types.h"
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#include "DNA_windowmanager_types.h"
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#include "DEG_depsgraph.h"
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#include "WM_api.h"
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namespace blender::ed::viewer_path {
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static void viewer_path_for_geometry_node(const SpaceNode &snode,
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const bNode &node,
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ViewerPath &r_dst)
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{
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BKE_viewer_path_init(&r_dst);
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Object *ob = reinterpret_cast<Object *>(snode.id);
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IDViewerPathElem *id_elem = BKE_viewer_path_elem_new_id();
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id_elem->id = &ob->id;
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BLI_addtail(&r_dst.path, id_elem);
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NodesModifierData *modifier = nullptr;
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LISTBASE_FOREACH (ModifierData *, md, &ob->modifiers) {
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if (md->type != eModifierType_Nodes) {
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continue;
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}
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NodesModifierData *nmd = reinterpret_cast<NodesModifierData *>(md);
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if (nmd->node_group != snode.nodetree) {
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continue;
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}
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if (snode.flag & SNODE_PIN) {
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/* If the node group is pinned, use the first matching modifier. This can be improved by
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* storing the modifier name in the node editor when the context is pinned. */
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modifier = nmd;
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break;
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}
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if (md->flag & eModifierFlag_Active) {
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modifier = nmd;
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}
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}
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ModifierViewerPathElem *modifier_elem = BKE_viewer_path_elem_new_modifier();
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modifier_elem->modifier_name = BLI_strdup(modifier->modifier.name);
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BLI_addtail(&r_dst.path, modifier_elem);
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Vector<const bNodeTreePath *, 16> tree_path = snode.treepath;
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for (const bNodeTreePath *tree_path_elem : tree_path.as_span().drop_front(1)) {
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NodeViewerPathElem *node_elem = BKE_viewer_path_elem_new_node();
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node_elem->node_name = BLI_strdup(tree_path_elem->node_name);
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BLI_addtail(&r_dst.path, node_elem);
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}
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NodeViewerPathElem *viewer_node_elem = BKE_viewer_path_elem_new_node();
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viewer_node_elem->node_name = BLI_strdup(node.name);
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BLI_addtail(&r_dst.path, viewer_node_elem);
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}
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void activate_geometry_node(Main &bmain, SpaceNode &snode, bNode &node)
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{
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wmWindowManager *wm = (wmWindowManager *)bmain.wm.first;
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if (wm == nullptr) {
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return;
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}
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LISTBASE_FOREACH (bNode *, iter_node, &snode.edittree->nodes) {
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if (iter_node->type == GEO_NODE_VIEWER) {
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SET_FLAG_FROM_TEST(iter_node->flag, iter_node == &node, NODE_DO_OUTPUT);
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}
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}
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ViewerPath new_viewer_path{};
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BLI_SCOPED_DEFER([&]() { BKE_viewer_path_clear(&new_viewer_path); });
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viewer_path_for_geometry_node(snode, node, new_viewer_path);
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bool found_view3d_with_enabled_viewer = false;
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View3D *any_view3d_without_viewer = nullptr;
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LISTBASE_FOREACH (wmWindow *, window, &wm->windows) {
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WorkSpace *workspace = BKE_workspace_active_get(window->workspace_hook);
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bScreen *screen = BKE_workspace_active_screen_get(window->workspace_hook);
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LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
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SpaceLink *sl = static_cast<SpaceLink *>(area->spacedata.first);
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if (sl->spacetype == SPACE_SPREADSHEET) {
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SpaceSpreadsheet &sspreadsheet = *reinterpret_cast<SpaceSpreadsheet *>(sl);
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if (!(sspreadsheet.flag & SPREADSHEET_FLAG_PINNED)) {
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sspreadsheet.object_eval_state = SPREADSHEET_OBJECT_EVAL_STATE_VIEWER_NODE;
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}
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}
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else if (sl->spacetype == SPACE_VIEW3D) {
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View3D &v3d = *reinterpret_cast<View3D *>(sl);
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if (v3d.flag2 & V3D_SHOW_VIEWER) {
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found_view3d_with_enabled_viewer = true;
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}
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else {
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any_view3d_without_viewer = &v3d;
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}
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}
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}
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/* Enable viewer in one viewport if it is disable in all of them. */
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if (!found_view3d_with_enabled_viewer && any_view3d_without_viewer != nullptr) {
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any_view3d_without_viewer->flag2 |= V3D_SHOW_VIEWER;
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}
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BKE_viewer_path_clear(&workspace->viewer_path);
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BKE_viewer_path_copy(&workspace->viewer_path, &new_viewer_path);
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/* Make sure the viewed data becomes available. */
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DEG_id_tag_update(snode.id, ID_RECALC_GEOMETRY);
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WM_main_add_notifier(NC_VIEWER_PATH, nullptr);
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}
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}
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Object *parse_object_only(const ViewerPath &viewer_path)
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{
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if (BLI_listbase_count(&viewer_path.path) != 1) {
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return nullptr;
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}
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const ViewerPathElem *elem = static_cast<ViewerPathElem *>(viewer_path.path.first);
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if (elem->type != VIEWER_PATH_ELEM_TYPE_ID) {
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return nullptr;
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}
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ID *id = reinterpret_cast<const IDViewerPathElem *>(elem)->id;
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if (id == nullptr) {
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return nullptr;
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}
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if (GS(id->name) != ID_OB) {
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return nullptr;
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}
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return reinterpret_cast<Object *>(id);
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}
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std::optional<ViewerPathForGeometryNodesViewer> parse_geometry_nodes_viewer(
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const ViewerPath &viewer_path)
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{
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const Vector<const ViewerPathElem *, 16> elems_vec = viewer_path.path;
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if (elems_vec.size() < 3) {
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/* Need at least the object, modifier and viewer node name. */
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return std::nullopt;
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}
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Span<const ViewerPathElem *> remaining_elems = elems_vec;
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const ViewerPathElem &id_elem = *remaining_elems[0];
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if (id_elem.type != VIEWER_PATH_ELEM_TYPE_ID) {
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return std::nullopt;
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}
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ID *root_id = reinterpret_cast<const IDViewerPathElem &>(id_elem).id;
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if (root_id == nullptr) {
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return std::nullopt;
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}
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if (GS(root_id->name) != ID_OB) {
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return std::nullopt;
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}
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Object *root_ob = reinterpret_cast<Object *>(root_id);
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remaining_elems = remaining_elems.drop_front(1);
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const ViewerPathElem &modifier_elem = *remaining_elems[0];
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if (modifier_elem.type != VIEWER_PATH_ELEM_TYPE_MODIFIER) {
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return std::nullopt;
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}
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const char *modifier_name =
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reinterpret_cast<const ModifierViewerPathElem &>(modifier_elem).modifier_name;
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if (modifier_name == nullptr) {
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return std::nullopt;
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}
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remaining_elems = remaining_elems.drop_front(1);
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Vector<StringRefNull> node_names;
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for (const ViewerPathElem *elem : remaining_elems) {
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if (elem->type != VIEWER_PATH_ELEM_TYPE_NODE) {
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return std::nullopt;
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}
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const char *node_name = reinterpret_cast<const NodeViewerPathElem *>(elem)->node_name;
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if (node_name == nullptr) {
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return std::nullopt;
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}
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node_names.append(node_name);
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}
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const StringRefNull viewer_node_name = node_names.pop_last();
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return ViewerPathForGeometryNodesViewer{root_ob, modifier_name, node_names, viewer_node_name};
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}
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bool exists_geometry_nodes_viewer(const ViewerPathForGeometryNodesViewer &parsed_viewer_path)
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{
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const NodesModifierData *modifier = nullptr;
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LISTBASE_FOREACH (const ModifierData *, md, &parsed_viewer_path.object->modifiers) {
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if (md->type != eModifierType_Nodes) {
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continue;
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}
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if (md->name != parsed_viewer_path.modifier_name) {
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continue;
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}
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modifier = reinterpret_cast<const NodesModifierData *>(md);
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break;
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}
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if (modifier == nullptr) {
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return false;
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}
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if (modifier->node_group == nullptr) {
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return false;
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}
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const bNodeTree *ngroup = modifier->node_group;
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ngroup->ensure_topology_cache();
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for (const StringRefNull group_node_name : parsed_viewer_path.group_node_names) {
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const bNode *group_node = nullptr;
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for (const bNode *node : ngroup->group_nodes()) {
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if (node->name != group_node_name) {
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continue;
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}
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group_node = node;
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break;
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}
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if (group_node == nullptr) {
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return false;
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}
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if (group_node->id == nullptr) {
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return false;
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}
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ngroup = reinterpret_cast<const bNodeTree *>(group_node->id);
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}
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const bNode *viewer_node = nullptr;
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for (const bNode *node : ngroup->nodes_by_type("GeometryNodeViewer")) {
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if (node->name != parsed_viewer_path.viewer_node_name) {
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continue;
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}
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viewer_node = node;
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break;
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}
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if (viewer_node == nullptr) {
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return false;
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}
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return true;
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}
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bool is_active_geometry_nodes_viewer(const bContext &C,
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const ViewerPathForGeometryNodesViewer &parsed_viewer_path)
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{
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const NodesModifierData *modifier = nullptr;
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LISTBASE_FOREACH (const ModifierData *, md, &parsed_viewer_path.object->modifiers) {
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if (md->name != parsed_viewer_path.modifier_name) {
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continue;
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}
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if (md->type != eModifierType_Nodes) {
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return false;
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}
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if ((md->mode & eModifierMode_Realtime) == 0) {
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return false;
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}
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modifier = reinterpret_cast<const NodesModifierData *>(md);
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break;
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}
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if (modifier == nullptr) {
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return false;
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}
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if (modifier->node_group == nullptr) {
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return false;
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}
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const bool modifier_is_active = modifier->modifier.flag & eModifierFlag_Active;
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const Main *bmain = CTX_data_main(&C);
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const wmWindowManager *wm = static_cast<wmWindowManager *>(bmain->wm.first);
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if (wm == nullptr) {
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return false;
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}
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LISTBASE_FOREACH (const wmWindow *, window, &wm->windows) {
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const bScreen *active_screen = BKE_workspace_active_screen_get(window->workspace_hook);
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Vector<const bScreen *> screens = {active_screen};
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if (ELEM(active_screen->state, SCREENMAXIMIZED, SCREENFULL)) {
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const ScrArea *area = static_cast<ScrArea *>(active_screen->areabase.first);
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screens.append(area->full);
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}
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for (const bScreen *screen : screens) {
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LISTBASE_FOREACH (const ScrArea *, area, &screen->areabase) {
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const SpaceLink *sl = static_cast<SpaceLink *>(area->spacedata.first);
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if (sl == nullptr) {
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continue;
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}
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if (sl->spacetype != SPACE_NODE) {
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continue;
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}
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const SpaceNode &snode = *reinterpret_cast<const SpaceNode *>(sl);
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if (!modifier_is_active) {
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if (!(snode.flag & SNODE_PIN)) {
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/* Node tree has to be pinned when the modifier is not active. */
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continue;
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}
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}
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if (snode.id != &parsed_viewer_path.object->id) {
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continue;
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}
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if (snode.nodetree != modifier->node_group) {
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continue;
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}
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Vector<const bNodeTreePath *, 16> tree_path = snode.treepath;
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if (tree_path.size() != parsed_viewer_path.group_node_names.size() + 1) {
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continue;
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}
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bool valid_path = true;
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for (const int i : parsed_viewer_path.group_node_names.index_range()) {
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if (parsed_viewer_path.group_node_names[i] != tree_path[i + 1]->node_name) {
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valid_path = false;
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break;
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}
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}
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if (!valid_path) {
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continue;
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}
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const bNodeTree *ngroup = snode.edittree;
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ngroup->ensure_topology_cache();
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const bNode *viewer_node = nullptr;
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for (const bNode *node : ngroup->nodes_by_type("GeometryNodeViewer")) {
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if (node->name != parsed_viewer_path.viewer_node_name) {
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continue;
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}
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viewer_node = node;
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}
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if (viewer_node == nullptr) {
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continue;
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}
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if (!(viewer_node->flag & NODE_DO_OUTPUT)) {
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continue;
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}
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return true;
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}
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}
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}
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return false;
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}
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bNode *find_geometry_nodes_viewer(const ViewerPath &viewer_path, SpaceNode &snode)
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{
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const std::optional<ViewerPathForGeometryNodesViewer> parsed_viewer_path =
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parse_geometry_nodes_viewer(viewer_path);
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if (!parsed_viewer_path.has_value()) {
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return nullptr;
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}
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snode.edittree->ensure_topology_cache();
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bNode *possible_viewer = nullptr;
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for (bNode *node : snode.edittree->nodes_by_type("GeometryNodeViewer")) {
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if (node->name == parsed_viewer_path->viewer_node_name) {
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possible_viewer = node;
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break;
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}
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}
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if (possible_viewer == nullptr) {
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return nullptr;
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}
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ViewerPath tmp_viewer_path;
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BLI_SCOPED_DEFER([&]() { BKE_viewer_path_clear(&tmp_viewer_path); });
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viewer_path_for_geometry_node(snode, *possible_viewer, tmp_viewer_path);
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if (BKE_viewer_path_equal(&viewer_path, &tmp_viewer_path)) {
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return possible_viewer;
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}
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return nullptr;
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}
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} // namespace blender::ed::viewer_path
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