diff options
Diffstat (limited to 'source/blender/editors/space_node/space_node.cc')
-rw-r--r-- | source/blender/editors/space_node/space_node.cc | 1081 |
1 files changed, 1081 insertions, 0 deletions
diff --git a/source/blender/editors/space_node/space_node.cc b/source/blender/editors/space_node/space_node.cc new file mode 100644 index 00000000000..53592aef98b --- /dev/null +++ b/source/blender/editors/space_node/space_node.cc @@ -0,0 +1,1081 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2008 Blender Foundation. + * All rights reserved. + */ + +/** \file + * \ingroup spnode + */ + +#include "DNA_gpencil_types.h" +#include "DNA_light_types.h" +#include "DNA_material_types.h" +#include "DNA_node_types.h" +#include "DNA_world_types.h" + +#include "MEM_guardedalloc.h" + +#include "BLI_blenlib.h" +#include "BLI_math.h" + +#include "BKE_context.h" +#include "BKE_lib_id.h" +#include "BKE_node.h" +#include "BKE_screen.h" + +#include "ED_node.h" +#include "ED_render.h" +#include "ED_screen.h" +#include "ED_space_api.h" + +#include "UI_resources.h" +#include "UI_view2d.h" + +#include "RNA_access.h" +#include "RNA_define.h" +#include "RNA_enum_types.h" + +#include "WM_api.h" +#include "WM_types.h" + +#include "node_intern.hh" /* own include */ + +/* ******************** tree path ********************* */ + +void ED_node_tree_start(SpaceNode *snode, bNodeTree *ntree, ID *id, ID *from) +{ + LISTBASE_FOREACH_MUTABLE (bNodeTreePath *, path, &snode->treepath) { + MEM_freeN(path); + } + BLI_listbase_clear(&snode->treepath); + + if (ntree) { + bNodeTreePath *path = (bNodeTreePath *)MEM_callocN(sizeof(bNodeTreePath), "node tree path"); + path->nodetree = ntree; + path->parent_key = NODE_INSTANCE_KEY_BASE; + + /* copy initial offset from bNodeTree */ + copy_v2_v2(path->view_center, ntree->view_center); + + if (id) { + BLI_strncpy(path->display_name, id->name + 2, sizeof(path->display_name)); + } + + BLI_addtail(&snode->treepath, path); + + if (ntree->type != NTREE_GEOMETRY) { + /* This can probably be removed for all node tree types. It mainly exists because it was not + * possible to store id references in custom properties. Also see T36024. I don't want to + * remove it for all tree types in bcon3 though. */ + id_us_ensure_real(&ntree->id); + } + } + + /* update current tree */ + snode->nodetree = snode->edittree = ntree; + snode->id = id; + snode->from = from; + + ED_node_set_active_viewer_key(snode); + + WM_main_add_notifier(NC_SCENE | ND_NODES, nullptr); +} + +void ED_node_tree_push(SpaceNode *snode, bNodeTree *ntree, bNode *gnode) +{ + bNodeTreePath *path = (bNodeTreePath *)MEM_callocN(sizeof(bNodeTreePath), "node tree path"); + bNodeTreePath *prev_path = (bNodeTreePath *)snode->treepath.last; + path->nodetree = ntree; + if (gnode) { + if (prev_path) { + path->parent_key = BKE_node_instance_key(prev_path->parent_key, prev_path->nodetree, gnode); + } + else { + path->parent_key = NODE_INSTANCE_KEY_BASE; + } + + BLI_strncpy(path->node_name, gnode->name, sizeof(path->node_name)); + BLI_strncpy(path->display_name, gnode->name, sizeof(path->display_name)); + } + else { + path->parent_key = NODE_INSTANCE_KEY_BASE; + } + + /* copy initial offset from bNodeTree */ + copy_v2_v2(path->view_center, ntree->view_center); + + BLI_addtail(&snode->treepath, path); + + id_us_ensure_real(&ntree->id); + + /* update current tree */ + snode->edittree = ntree; + + ED_node_set_active_viewer_key(snode); + + WM_main_add_notifier(NC_SCENE | ND_NODES, nullptr); +} + +void ED_node_tree_pop(SpaceNode *snode) +{ + bNodeTreePath *path = (bNodeTreePath *)snode->treepath.last; + + /* don't remove root */ + if (path == snode->treepath.first) { + return; + } + + BLI_remlink(&snode->treepath, path); + MEM_freeN(path); + + /* update current tree */ + path = (bNodeTreePath *)snode->treepath.last; + snode->edittree = path->nodetree; + + ED_node_set_active_viewer_key(snode); + + /* listener updates the View2D center from edittree */ + WM_main_add_notifier(NC_SCENE | ND_NODES, nullptr); +} + +int ED_node_tree_depth(SpaceNode *snode) +{ + return BLI_listbase_count(&snode->treepath); +} + +bNodeTree *ED_node_tree_get(SpaceNode *snode, int level) +{ + bNodeTreePath *path; + int i; + for (path = (bNodeTreePath *)snode->treepath.last, i = 0; path; path = path->prev, i++) { + if (i == level) { + return path->nodetree; + } + } + return nullptr; +} + +int ED_node_tree_path_length(SpaceNode *snode) +{ + int length = 0; + int i = 0; + LISTBASE_FOREACH_INDEX (bNodeTreePath *, path, &snode->treepath, i) { + length += strlen(path->display_name); + if (i > 0) { + length += 1; /* for separator char */ + } + } + return length; +} + +void ED_node_tree_path_get(SpaceNode *snode, char *value) +{ + int i = 0; + + value[0] = '\0'; + LISTBASE_FOREACH_INDEX (bNodeTreePath *, path, &snode->treepath, i) { + if (i == 0) { + strcpy(value, path->display_name); + value += strlen(path->display_name); + } + else { + sprintf(value, "/%s", path->display_name); + value += strlen(path->display_name) + 1; + } + } +} + +void ED_node_set_active_viewer_key(SpaceNode *snode) +{ + bNodeTreePath *path = (bNodeTreePath *)snode->treepath.last; + if (snode->nodetree && path) { + snode->nodetree->active_viewer_key = path->parent_key; + } +} + +void space_node_group_offset(SpaceNode *snode, float *x, float *y) +{ + bNodeTreePath *path = (bNodeTreePath *)snode->treepath.last; + + if (path && path->prev) { + float dcenter[2]; + sub_v2_v2v2(dcenter, path->view_center, path->prev->view_center); + *x = dcenter[0]; + *y = dcenter[1]; + } + else { + *x = *y = 0.0f; + } +} + +/* ******************** default callbacks for node space ***************** */ + +static SpaceLink *node_create(const ScrArea *UNUSED(area), const Scene *UNUSED(scene)) +{ + SpaceNode *snode = (SpaceNode *)MEM_callocN(sizeof(SpaceNode), "initnode"); + snode->spacetype = SPACE_NODE; + + snode->flag = SNODE_SHOW_GPENCIL | SNODE_USE_ALPHA; + snode->overlay.flag |= SN_OVERLAY_SHOW_OVERLAYS; + snode->overlay.flag |= SN_OVERLAY_SHOW_WIRE_COLORS; + + /* backdrop */ + snode->zoom = 1.0f; + + /* select the first tree type for valid type */ + NODE_TREE_TYPES_BEGIN (treetype) { + strcpy(snode->tree_idname, treetype->idname); + break; + } + NODE_TREE_TYPES_END; + + /* header */ + ARegion *region = (ARegion *)MEM_callocN(sizeof(ARegion), "header for node"); + + BLI_addtail(&snode->regionbase, region); + region->regiontype = RGN_TYPE_HEADER; + region->alignment = (U.uiflag & USER_HEADER_BOTTOM) ? RGN_ALIGN_BOTTOM : RGN_ALIGN_TOP; + + /* buttons/list view */ + region = (ARegion *)MEM_callocN(sizeof(ARegion), "buttons for node"); + + BLI_addtail(&snode->regionbase, region); + region->regiontype = RGN_TYPE_UI; + region->alignment = RGN_ALIGN_RIGHT; + + /* toolbar */ + region = (ARegion *)MEM_callocN(sizeof(ARegion), "node tools"); + + BLI_addtail(&snode->regionbase, region); + region->regiontype = RGN_TYPE_TOOLS; + region->alignment = RGN_ALIGN_LEFT; + + region->flag = RGN_FLAG_HIDDEN; + + /* main region */ + region = (ARegion *)MEM_callocN(sizeof(ARegion), "main region for node"); + + BLI_addtail(&snode->regionbase, region); + region->regiontype = RGN_TYPE_WINDOW; + + region->v2d.tot.xmin = -12.8f * U.widget_unit; + region->v2d.tot.ymin = -12.8f * U.widget_unit; + region->v2d.tot.xmax = 38.4f * U.widget_unit; + region->v2d.tot.ymax = 38.4f * U.widget_unit; + + region->v2d.cur = region->v2d.tot; + + region->v2d.min[0] = 1.0f; + region->v2d.min[1] = 1.0f; + + region->v2d.max[0] = 32000.0f; + region->v2d.max[1] = 32000.0f; + + region->v2d.minzoom = 0.09f; + region->v2d.maxzoom = 2.31f; + + region->v2d.scroll = (V2D_SCROLL_RIGHT | V2D_SCROLL_BOTTOM); + region->v2d.keepzoom = V2D_LIMITZOOM | V2D_KEEPASPECT; + region->v2d.keeptot = 0; + + return (SpaceLink *)snode; +} + +static void node_free(SpaceLink *sl) +{ + SpaceNode *snode = (SpaceNode *)sl; + + LISTBASE_FOREACH_MUTABLE (bNodeTreePath *, path, &snode->treepath) { + MEM_freeN(path); + } + + MEM_SAFE_FREE(snode->runtime); +} + +/* spacetype; init callback */ +static void node_init(struct wmWindowManager *UNUSED(wm), ScrArea *area) +{ + SpaceNode *snode = (SpaceNode *)area->spacedata.first; + + if (snode->runtime == nullptr) { + snode->runtime = (SpaceNode_Runtime *)MEM_callocN(sizeof(SpaceNode_Runtime), __func__); + } +} + +static void node_area_listener(const wmSpaceTypeListenerParams *params) +{ + ScrArea *area = params->area; + wmNotifier *wmn = params->notifier; + + /* NOTE: #ED_area_tag_refresh will re-execute compositor. */ + SpaceNode *snode = (SpaceNode *)area->spacedata.first; + /* shaderfrom is only used for new shading nodes, otherwise all shaders are from objects */ + short shader_type = snode->shaderfrom; + + /* preview renders */ + switch (wmn->category) { + case NC_SCENE: + switch (wmn->data) { + case ND_NODES: { + ARegion *region = BKE_area_find_region_type(area, RGN_TYPE_WINDOW); + bNodeTreePath *path = (bNodeTreePath *)snode->treepath.last; + /* shift view to node tree center */ + if (region && path) { + UI_view2d_center_set(®ion->v2d, path->view_center[0], path->view_center[1]); + } + + ED_area_tag_refresh(area); + break; + } + case ND_FRAME: + ED_area_tag_refresh(area); + break; + case ND_COMPO_RESULT: + ED_area_tag_redraw(area); + break; + case ND_TRANSFORM_DONE: + if (ED_node_is_compositor(snode)) { + if (snode->flag & SNODE_AUTO_RENDER) { + snode->runtime->recalc = true; + ED_area_tag_refresh(area); + } + } + break; + case ND_LAYER_CONTENT: + ED_area_tag_refresh(area); + break; + } + break; + + /* future: add ID checks? */ + case NC_MATERIAL: + if (ED_node_is_shader(snode)) { + if (wmn->data == ND_SHADING) { + ED_area_tag_refresh(area); + } + else if (wmn->data == ND_SHADING_DRAW) { + ED_area_tag_refresh(area); + } + else if (wmn->data == ND_SHADING_LINKS) { + ED_area_tag_refresh(area); + } + else if (wmn->action == NA_ADDED && snode->edittree) { + nodeSetActiveID(snode->edittree, ID_MA, (ID *)wmn->reference); + } + } + break; + case NC_TEXTURE: + if (ED_node_is_shader(snode) || ED_node_is_texture(snode)) { + if (wmn->data == ND_NODES) { + ED_area_tag_refresh(area); + } + } + break; + case NC_WORLD: + if (ED_node_is_shader(snode) && shader_type == SNODE_SHADER_WORLD) { + ED_area_tag_refresh(area); + } + break; + case NC_OBJECT: + if (ED_node_is_shader(snode)) { + if (wmn->data == ND_OB_SHADING) { + ED_area_tag_refresh(area); + } + } + else if (ED_node_is_geometry(snode)) { + /* Rather strict check: only redraw when the reference matches the current editor's ID. */ + if (wmn->data == ND_MODIFIER) { + if (wmn->reference == snode->id || snode->id == nullptr) { + ED_area_tag_refresh(area); + } + } + } + break; + case NC_SPACE: + if (wmn->data == ND_SPACE_NODE) { + ED_area_tag_refresh(area); + } + else if (wmn->data == ND_SPACE_NODE_VIEW) { + ED_area_tag_redraw(area); + } + break; + case NC_NODE: + if (wmn->action == NA_EDITED) { + ED_area_tag_refresh(area); + } + else if (wmn->action == NA_SELECTED) { + ED_area_tag_redraw(area); + } + break; + case NC_SCREEN: + switch (wmn->data) { + case ND_ANIMPLAY: + ED_area_tag_refresh(area); + break; + } + break; + case NC_MASK: + if (wmn->action == NA_EDITED) { + if (snode->nodetree && snode->nodetree->type == NTREE_COMPOSIT) { + ED_area_tag_refresh(area); + } + } + break; + + case NC_IMAGE: + if (wmn->action == NA_EDITED) { + if (ED_node_is_compositor(snode)) { + /* note that nodeUpdateID is already called by BKE_image_signal() on all + * scenes so really this is just to know if the images is used in the compo else + * painting on images could become very slow when the compositor is open. */ + if (nodeUpdateID(snode->nodetree, (ID *)wmn->reference)) { + ED_area_tag_refresh(area); + } + } + } + break; + + case NC_MOVIECLIP: + if (wmn->action == NA_EDITED) { + if (ED_node_is_compositor(snode)) { + if (nodeUpdateID(snode->nodetree, (ID *)wmn->reference)) { + ED_area_tag_refresh(area); + } + } + } + break; + + case NC_LINESTYLE: + if (ED_node_is_shader(snode) && shader_type == SNODE_SHADER_LINESTYLE) { + ED_area_tag_refresh(area); + } + break; + case NC_WM: + if (wmn->data == ND_UNDO) { + ED_area_tag_refresh(area); + } + break; + case NC_GPENCIL: + if (ELEM(wmn->action, NA_EDITED, NA_SELECTED)) { + ED_area_tag_redraw(area); + } + break; + } +} + +static void node_area_refresh(const struct bContext *C, ScrArea *area) +{ + /* default now: refresh node is starting preview */ + SpaceNode *snode = (SpaceNode *)area->spacedata.first; + + snode_set_context(C); + + if (snode->nodetree) { + if (snode->nodetree->type == NTREE_SHADER) { + if (GS(snode->id->name) == ID_MA) { + Material *ma = (Material *)snode->id; + if (ma->use_nodes) { + ED_preview_shader_job(C, area, snode->id, nullptr, nullptr, 100, 100, PR_NODE_RENDER); + } + } + else if (GS(snode->id->name) == ID_LA) { + Light *la = (Light *)snode->id; + if (la->use_nodes) { + ED_preview_shader_job(C, area, snode->id, nullptr, nullptr, 100, 100, PR_NODE_RENDER); + } + } + else if (GS(snode->id->name) == ID_WO) { + World *wo = (World *)snode->id; + if (wo->use_nodes) { + ED_preview_shader_job(C, area, snode->id, nullptr, nullptr, 100, 100, PR_NODE_RENDER); + } + } + } + else if (snode->nodetree->type == NTREE_COMPOSIT) { + Scene *scene = (Scene *)snode->id; + if (scene->use_nodes) { + /* recalc is set on 3d view changes for auto compo */ + if (snode->runtime->recalc) { + snode->runtime->recalc = false; + node_render_changed_exec((struct bContext *)C, nullptr); + } + else { + ED_node_composite_job(C, snode->nodetree, scene); + } + } + } + else if (snode->nodetree->type == NTREE_TEXTURE) { + Tex *tex = (Tex *)snode->id; + if (tex->use_nodes) { + ED_preview_shader_job(C, area, snode->id, nullptr, nullptr, 100, 100, PR_NODE_RENDER); + } + } + } +} + +static SpaceLink *node_duplicate(SpaceLink *sl) +{ + SpaceNode *snode = (SpaceNode *)sl; + SpaceNode *snoden = (SpaceNode *)MEM_dupallocN(snode); + + BLI_duplicatelist(&snoden->treepath, &snode->treepath); + + if (snode->runtime != nullptr) { + snoden->runtime = (SpaceNode_Runtime *)MEM_dupallocN(snode->runtime); + BLI_listbase_clear(&snoden->runtime->linkdrag); + } + + /* NOTE: no need to set node tree user counts, + * the editor only keeps at least 1 (id_us_ensure_real), + * which is already done by the original SpaceNode. + */ + + return (SpaceLink *)snoden; +} + +/* add handlers, stuff you only do once or on area/region changes */ +static void node_buttons_region_init(wmWindowManager *wm, ARegion *region) +{ + wmKeyMap *keymap; + + ED_region_panels_init(wm, region); + + keymap = WM_keymap_ensure(wm->defaultconf, "Node Generic", SPACE_NODE, 0); + WM_event_add_keymap_handler(®ion->handlers, keymap); +} + +static void node_buttons_region_draw(const bContext *C, ARegion *region) +{ + ED_region_panels(C, region); +} + +/* add handlers, stuff you only do once or on area/region changes */ +static void node_toolbar_region_init(wmWindowManager *wm, ARegion *region) +{ + wmKeyMap *keymap; + + ED_region_panels_init(wm, region); + + keymap = WM_keymap_ensure(wm->defaultconf, "Node Generic", SPACE_NODE, 0); + WM_event_add_keymap_handler(®ion->handlers, keymap); +} + +static void node_toolbar_region_draw(const bContext *C, ARegion *region) +{ + ED_region_panels(C, region); +} + +void ED_node_cursor_location_get(const SpaceNode *snode, float value[2]) +{ + copy_v2_v2(value, snode->runtime->cursor); +} + +void ED_node_cursor_location_set(SpaceNode *snode, const float value[2]) +{ + copy_v2_v2(snode->runtime->cursor, value); +} + +static void node_cursor(wmWindow *win, ScrArea *area, ARegion *region) +{ + SpaceNode *snode = (SpaceNode *)area->spacedata.first; + + /* convert mouse coordinates to v2d space */ + UI_view2d_region_to_view(®ion->v2d, + win->eventstate->xy[0] - region->winrct.xmin, + win->eventstate->xy[1] - region->winrct.ymin, + &snode->runtime->cursor[0], + &snode->runtime->cursor[1]); + + /* here snode->runtime->cursor is used to detect the node edge for sizing */ + node_set_cursor(win, snode, snode->runtime->cursor); + + /* XXX snode->runtime->cursor is in placing new nodes space */ + snode->runtime->cursor[0] /= UI_DPI_FAC; + snode->runtime->cursor[1] /= UI_DPI_FAC; +} + +/* Initialize main region, setting handlers. */ +static void node_main_region_init(wmWindowManager *wm, ARegion *region) +{ + wmKeyMap *keymap; + ListBase *lb; + + UI_view2d_region_reinit(®ion->v2d, V2D_COMMONVIEW_CUSTOM, region->winx, region->winy); + + /* own keymaps */ + keymap = WM_keymap_ensure(wm->defaultconf, "Node Generic", SPACE_NODE, 0); + WM_event_add_keymap_handler(®ion->handlers, keymap); + + keymap = WM_keymap_ensure(wm->defaultconf, "Node Editor", SPACE_NODE, 0); + WM_event_add_keymap_handler_v2d_mask(®ion->handlers, keymap); + + /* add drop boxes */ + lb = WM_dropboxmap_find("Node Editor", SPACE_NODE, RGN_TYPE_WINDOW); + + WM_event_add_dropbox_handler(®ion->handlers, lb); + + /* The backdrop image gizmo needs to change together with the view. So always refresh gizmos on + * region size changes. */ + WM_gizmomap_tag_refresh(region->gizmo_map); +} + +static void node_main_region_draw(const bContext *C, ARegion *region) +{ + node_draw_space(C, region); +} + +/* ************* dropboxes ************* */ + +static bool node_group_drop_poll(bContext *UNUSED(C), wmDrag *drag, const wmEvent *UNUSED(event)) +{ + return WM_drag_is_ID_type(drag, ID_NT); +} + +static bool node_object_drop_poll(bContext *UNUSED(C), wmDrag *drag, const wmEvent *UNUSED(event)) +{ + return WM_drag_is_ID_type(drag, ID_OB); +} + +static bool node_collection_drop_poll(bContext *UNUSED(C), + wmDrag *drag, + const wmEvent *UNUSED(event)) +{ + return WM_drag_is_ID_type(drag, ID_GR); +} + +static bool node_texture_drop_poll(bContext *UNUSED(C), wmDrag *drag, const wmEvent *UNUSED(event)) +{ + return WM_drag_is_ID_type(drag, ID_TE); +} + +static bool node_ima_drop_poll(bContext *UNUSED(C), wmDrag *drag, const wmEvent *UNUSED(event)) +{ + if (drag->type == WM_DRAG_PATH) { + /* rule might not work? */ + return (ELEM(drag->icon, 0, ICON_FILE_IMAGE, ICON_FILE_MOVIE)); + } + return WM_drag_is_ID_type(drag, ID_IM); +} + +static bool node_mask_drop_poll(bContext *UNUSED(C), wmDrag *drag, const wmEvent *UNUSED(event)) +{ + return WM_drag_is_ID_type(drag, ID_MSK); +} + +static void node_group_drop_copy(wmDrag *drag, wmDropBox *drop) +{ + ID *id = WM_drag_get_local_ID_or_import_from_asset(drag, 0); + + RNA_string_set(drop->ptr, "name", id->name + 2); +} + +static void node_id_drop_copy(wmDrag *drag, wmDropBox *drop) +{ + ID *id = WM_drag_get_local_ID_or_import_from_asset(drag, 0); + + RNA_string_set(drop->ptr, "name", id->name + 2); +} + +static void node_id_path_drop_copy(wmDrag *drag, wmDropBox *drop) +{ + ID *id = WM_drag_get_local_ID_or_import_from_asset(drag, 0); + + if (id) { + RNA_string_set(drop->ptr, "name", id->name + 2); + RNA_struct_property_unset(drop->ptr, "filepath"); + } + else if (drag->path[0]) { + RNA_string_set(drop->ptr, "filepath", drag->path); + RNA_struct_property_unset(drop->ptr, "name"); + } +} + +/* this region dropbox definition */ +static void node_dropboxes() +{ + ListBase *lb = WM_dropboxmap_find("Node Editor", SPACE_NODE, RGN_TYPE_WINDOW); + + WM_dropbox_add(lb, + "NODE_OT_add_object", + node_object_drop_poll, + node_id_drop_copy, + WM_drag_free_imported_drag_ID, + nullptr); + WM_dropbox_add(lb, + "NODE_OT_add_collection", + node_collection_drop_poll, + node_id_drop_copy, + WM_drag_free_imported_drag_ID, + nullptr); + WM_dropbox_add(lb, + "NODE_OT_add_texture", + node_texture_drop_poll, + node_id_drop_copy, + WM_drag_free_imported_drag_ID, + nullptr); + WM_dropbox_add(lb, + "NODE_OT_add_group", + node_group_drop_poll, + node_group_drop_copy, + WM_drag_free_imported_drag_ID, + nullptr); + WM_dropbox_add(lb, + "NODE_OT_add_file", + node_ima_drop_poll, + node_id_path_drop_copy, + WM_drag_free_imported_drag_ID, + nullptr); + WM_dropbox_add(lb, + "NODE_OT_add_mask", + node_mask_drop_poll, + node_id_drop_copy, + WM_drag_free_imported_drag_ID, + nullptr); +} + +/* ************* end drop *********** */ + +/* add handlers, stuff you only do once or on area/region changes */ +static void node_header_region_init(wmWindowManager *UNUSED(wm), ARegion *region) +{ + ED_region_header_init(region); +} + +static void node_header_region_draw(const bContext *C, ARegion *region) +{ + /* find and set the context */ + snode_set_context(C); + + ED_region_header(C, region); +} + +/* used for header + main region */ +static void node_region_listener(const wmRegionListenerParams *params) +{ + ARegion *region = params->region; + wmNotifier *wmn = params->notifier; + wmGizmoMap *gzmap = region->gizmo_map; + + /* context changes */ + switch (wmn->category) { + case NC_SPACE: + switch (wmn->data) { + case ND_SPACE_NODE: + ED_region_tag_redraw(region); + break; + case ND_SPACE_NODE_VIEW: + WM_gizmomap_tag_refresh(gzmap); + break; + } + break; + case NC_SCREEN: + if (wmn->data == ND_LAYOUTSET || wmn->action == NA_EDITED) { + WM_gizmomap_tag_refresh(gzmap); + } + switch (wmn->data) { + case ND_ANIMPLAY: + case ND_LAYER: + ED_region_tag_redraw(region); + break; + } + break; + case NC_WM: + if (wmn->data == ND_JOB) { + ED_region_tag_redraw(region); + } + break; + case NC_SCENE: + ED_region_tag_redraw(region); + if (wmn->data == ND_RENDER_RESULT) { + WM_gizmomap_tag_refresh(gzmap); + } + break; + case NC_NODE: + ED_region_tag_redraw(region); + if (ELEM(wmn->action, NA_EDITED, NA_SELECTED)) { + WM_gizmomap_tag_refresh(gzmap); + } + break; + case NC_MATERIAL: + case NC_TEXTURE: + case NC_WORLD: + case NC_LINESTYLE: + ED_region_tag_redraw(region); + break; + case NC_OBJECT: + if (wmn->data == ND_OB_SHADING) { + ED_region_tag_redraw(region); + } + break; + case NC_ID: + if (wmn->action == NA_RENAME) { + ED_region_tag_redraw(region); + } + break; + case NC_GPENCIL: + if (wmn->action == NA_EDITED) { + ED_region_tag_redraw(region); + } + else if (wmn->data & ND_GPENCIL_EDITMODE) { + ED_region_tag_redraw(region); + } + break; + } +} + +const char *node_context_dir[] = { + "selected_nodes", "active_node", "light", "material", "world", nullptr}; +static int /*eContextResult*/ node_context(const bContext *C, + const char *member, + bContextDataResult *result) +{ + SpaceNode *snode = CTX_wm_space_node(C); + + if (CTX_data_dir(member)) { + CTX_data_dir_set(result, node_context_dir); + return CTX_RESULT_OK; + } + if (CTX_data_equals(member, "selected_nodes")) { + if (snode->edittree) { + LISTBASE_FOREACH_BACKWARD (bNode *, node, &snode->edittree->nodes) { + if (node->flag & NODE_SELECT) { + CTX_data_list_add(result, &snode->edittree->id, &RNA_Node, node); + } + } + } + CTX_data_type_set(result, CTX_DATA_TYPE_COLLECTION); + return CTX_RESULT_OK; + } + if (CTX_data_equals(member, "active_node")) { + if (snode->edittree) { + bNode *node = nodeGetActive(snode->edittree); + CTX_data_pointer_set(result, &snode->edittree->id, &RNA_Node, node); + } + + CTX_data_type_set(result, CTX_DATA_TYPE_POINTER); + return CTX_RESULT_OK; + } + if (CTX_data_equals(member, "node_previews")) { + if (snode->nodetree) { + CTX_data_pointer_set( + result, &snode->nodetree->id, &RNA_NodeInstanceHash, snode->nodetree->previews); + } + + CTX_data_type_set(result, CTX_DATA_TYPE_POINTER); + return CTX_RESULT_OK; + } + if (CTX_data_equals(member, "material")) { + if (snode->id && GS(snode->id->name) == ID_MA) { + CTX_data_id_pointer_set(result, snode->id); + } + return CTX_RESULT_OK; + } + if (CTX_data_equals(member, "light")) { + if (snode->id && GS(snode->id->name) == ID_LA) { + CTX_data_id_pointer_set(result, snode->id); + } + return CTX_RESULT_OK; + } + if (CTX_data_equals(member, "world")) { + if (snode->id && GS(snode->id->name) == ID_WO) { + CTX_data_id_pointer_set(result, snode->id); + } + return CTX_RESULT_OK; + } + + return CTX_RESULT_MEMBER_NOT_FOUND; +} + +static void node_widgets() +{ + /* create the widgetmap for the area here */ + wmGizmoMapType_Params params{SPACE_NODE, RGN_TYPE_WINDOW}; + wmGizmoMapType *gzmap_type = WM_gizmomaptype_ensure(¶ms); + WM_gizmogrouptype_append_and_link(gzmap_type, NODE_GGT_backdrop_transform); + WM_gizmogrouptype_append_and_link(gzmap_type, NODE_GGT_backdrop_crop); + WM_gizmogrouptype_append_and_link(gzmap_type, NODE_GGT_backdrop_sun_beams); + WM_gizmogrouptype_append_and_link(gzmap_type, NODE_GGT_backdrop_corner_pin); +} + +static void node_id_remap(ScrArea *UNUSED(area), SpaceLink *slink, ID *old_id, ID *new_id) +{ + SpaceNode *snode = (SpaceNode *)slink; + + if (snode->id == old_id) { + /* nasty DNA logic for SpaceNode: + * ideally should be handled by editor code, but would be bad level call + */ + BLI_freelistN(&snode->treepath); + + /* XXX Untested in case new_id != nullptr... */ + snode->id = new_id; + snode->from = nullptr; + snode->nodetree = nullptr; + snode->edittree = nullptr; + } + else if (GS(old_id->name) == ID_OB) { + if (snode->from == old_id) { + if (new_id == nullptr) { + snode->flag &= ~SNODE_PIN; + } + snode->from = new_id; + } + } + else if (GS(old_id->name) == ID_GD) { + if ((ID *)snode->gpd == old_id) { + snode->gpd = (bGPdata *)new_id; + id_us_min(old_id); + id_us_plus(new_id); + } + } + else if (GS(old_id->name) == ID_NT) { + bNodeTreePath *path, *path_next; + + for (path = (bNodeTreePath *)snode->treepath.first; path; path = path->next) { + if ((ID *)path->nodetree == old_id) { + path->nodetree = (bNodeTree *)new_id; + id_us_ensure_real(new_id); + } + if (path == snode->treepath.first) { + /* first nodetree in path is same as snode->nodetree */ + snode->nodetree = path->nodetree; + } + if (path->nodetree == nullptr) { + break; + } + } + + /* remaining path entries are invalid, remove */ + for (; path; path = path_next) { + path_next = path->next; + + BLI_remlink(&snode->treepath, path); + MEM_freeN(path); + } + + /* edittree is just the last in the path, + * set this directly since the path may have been shortened above */ + if (snode->treepath.last) { + path = (bNodeTreePath *)snode->treepath.last; + snode->edittree = path->nodetree; + } + else { + snode->edittree = nullptr; + } + } +} + +static int node_space_subtype_get(ScrArea *area) +{ + SpaceNode *snode = (SpaceNode *)area->spacedata.first; + return rna_node_tree_idname_to_enum(snode->tree_idname); +} + +static void node_space_subtype_set(ScrArea *area, int value) +{ + SpaceNode *snode = (SpaceNode *)area->spacedata.first; + ED_node_set_tree_type(snode, rna_node_tree_type_from_enum(value)); +} + +static void node_space_subtype_item_extend(bContext *C, EnumPropertyItem **item, int *totitem) +{ + bool free; + const EnumPropertyItem *item_src = RNA_enum_node_tree_types_itemf_impl(C, &free); + RNA_enum_items_add(item, totitem, item_src); + if (free) { + MEM_freeN((void *)item_src); + } +} + +/* only called once, from space/spacetypes.c */ +void ED_spacetype_node(void) +{ + SpaceType *st = (SpaceType *)MEM_callocN(sizeof(SpaceType), "spacetype node"); + ARegionType *art; + + st->spaceid = SPACE_NODE; + strncpy(st->name, "Node", BKE_ST_MAXNAME); + + st->create = node_create; + st->free = node_free; + st->init = node_init; + st->duplicate = node_duplicate; + st->operatortypes = node_operatortypes; + st->keymap = node_keymap; + st->listener = node_area_listener; + st->refresh = node_area_refresh; + st->context = node_context; + st->dropboxes = node_dropboxes; + st->gizmos = node_widgets; + st->id_remap = node_id_remap; + st->space_subtype_item_extend = node_space_subtype_item_extend; + st->space_subtype_get = node_space_subtype_get; + st->space_subtype_set = node_space_subtype_set; + + /* regions: main window */ + art = (ARegionType *)MEM_callocN(sizeof(ARegionType), "spacetype node region"); + art->regionid = RGN_TYPE_WINDOW; + art->init = node_main_region_init; + art->draw = node_main_region_draw; + art->keymapflag = ED_KEYMAP_UI | ED_KEYMAP_GIZMO | ED_KEYMAP_TOOL | ED_KEYMAP_VIEW2D | + ED_KEYMAP_FRAMES | ED_KEYMAP_GPENCIL; + art->listener = node_region_listener; + art->cursor = node_cursor; + art->event_cursor = true; + art->clip_gizmo_events_by_ui = true; + + BLI_addhead(&st->regiontypes, art); + + /* regions: header */ + art = (ARegionType *)MEM_callocN(sizeof(ARegionType), "spacetype node region"); + art->regionid = RGN_TYPE_HEADER; + art->prefsizey = HEADERY; + art->keymapflag = ED_KEYMAP_UI | ED_KEYMAP_VIEW2D | ED_KEYMAP_FRAMES | ED_KEYMAP_HEADER; + art->listener = node_region_listener; + art->init = node_header_region_init; + art->draw = node_header_region_draw; + + BLI_addhead(&st->regiontypes, art); + + /* regions: listview/buttons */ + art = (ARegionType *)MEM_callocN(sizeof(ARegionType), "spacetype node region"); + art->regionid = RGN_TYPE_UI; + art->prefsizex = UI_SIDEBAR_PANEL_WIDTH; + art->keymapflag = ED_KEYMAP_UI | ED_KEYMAP_FRAMES; + art->listener = node_region_listener; + art->message_subscribe = ED_area_do_mgs_subscribe_for_tool_ui; + art->init = node_buttons_region_init; + art->draw = node_buttons_region_draw; + BLI_addhead(&st->regiontypes, art); + + /* regions: toolbar */ + art = (ARegionType *)MEM_callocN(sizeof(ARegionType), "spacetype view3d tools region"); + art->regionid = RGN_TYPE_TOOLS; + art->prefsizex = 58; /* XXX */ + art->prefsizey = 50; /* XXX */ + art->keymapflag = ED_KEYMAP_UI | ED_KEYMAP_FRAMES; + art->listener = node_region_listener; + art->message_subscribe = ED_region_generic_tools_region_message_subscribe; + art->snap_size = ED_region_generic_tools_region_snap_size; + art->init = node_toolbar_region_init; + art->draw = node_toolbar_region_draw; + BLI_addhead(&st->regiontypes, art); + + node_toolbar_register(art); + + BKE_spacetype_register(st); +} |