Outliner: Include gpencil modifiers and effects in the tree

Grease pencil modifiers already had defined outliner icons, but had
never been included in the tree. This adds the modifiers and the shader
effects to the tree.

Part of T68498

2 files changed, 81 insertions, 1 deletions

diff --git a/source/blender/editors/space_outliner/outliner_draw.c b/source/blender/editors/space_outliner/outliner_draw.c
index cf6a86ba6d7..277ecc60669 100644
--- a/source/blender/editors/space_outliner/outliner_draw.c
+++ b/source/blender/editors/space_outliner/outliner_draw.c
@@ -2188,7 +2188,7 @@ TreeElementIcon tree_element_get_icon(TreeStoreElem *tselem, TreeElement *te)
           GpencilModifierData *md = BLI_findlink(&ob->greasepencil_modifiers, tselem->nr);
           switch ((GpencilModifierType)md->type) {
             case eGpencilModifierType_Noise:
-              data.icon = ICON_RNDCURVE;
+              data.icon = ICON_MOD_NOISE;
               break;
             case eGpencilModifierType_Subdiv:
               data.icon = ICON_MOD_SUBSURF;
@@ -2232,6 +2232,15 @@ TreeElementIcon tree_element_get_icon(TreeStoreElem *tselem, TreeElement *te)
             case eGpencilModifierType_Armature:
               data.icon = ICON_MOD_ARMATURE;
               break;
+            case eGpencilModifierType_Multiply:
+              data.icon = ICON_GP_MULTIFRAME_EDITING;
+              break;
+            case eGpencilModifierType_Time:
+              data.icon = ICON_MOD_TIME;
+              break;
+            case eGpencilModifierType_Texture:
+              data.icon = ICON_TEXTURE;
+              break;
 
               /* Default */
             default:
@@ -2354,6 +2363,11 @@ TreeElementIcon tree_element_get_icon(TreeStoreElem *tselem, TreeElement *te)
         data.icon = ICON_OUTLINER_DATA_GP_LAYER;
         break;
       }
+      case TSE_GPENCIL_EFFECT_BASE:
+      case TSE_GPENCIL_EFFECT:
+        data.drag_id = tselem->id;
+        data.icon = ICON_SHADERFX;
+        break;
       default:
         data.icon = ICON_DOT;
         break;
diff --git a/source/blender/editors/space_outliner/outliner_tree.c b/source/blender/editors/space_outliner/outliner_tree.c
index 9e3cbabf283..22a7019ab91 100644
--- a/source/blender/editors/space_outliner/outliner_tree.c
+++ b/source/blender/editors/space_outliner/outliner_tree.c
@@ -32,6 +32,7 @@
 #include "DNA_camera_types.h"
 #include "DNA_collection_types.h"
 #include "DNA_constraint_types.h"
+#include "DNA_gpencil_modifier_types.h"
 #include "DNA_gpencil_types.h"
 #include "DNA_hair_types.h"
 #include "DNA_key_types.h"
@@ -46,6 +47,7 @@
 #include "DNA_pointcloud_types.h"
 #include "DNA_scene_types.h"
 #include "DNA_sequence_types.h"
+#include "DNA_shader_fx_types.h"
 #include "DNA_simulation_types.h"
 #include "DNA_speaker_types.h"
 #include "DNA_volume_types.h"
@@ -550,6 +552,70 @@ static void outliner_add_object_contents(SpaceOutliner *space_outliner,
     }
   }
 
+  /* Grease Pencil modifiers. */
+  if (!BLI_listbase_is_empty(&ob->greasepencil_modifiers)) {
+    TreeElement *ten_mod = outliner_add_element(
+        space_outliner, &te->subtree, ob, te, TSE_MODIFIER_BASE, 0);
+
+    ten_mod->name = IFACE_("Modifiers");
+    int index;
+    LISTBASE_FOREACH_INDEX (GpencilModifierData *, md, &ob->greasepencil_modifiers, index) {
+      TreeElement *ten = outliner_add_element(
+          space_outliner, &ten_mod->subtree, ob, ten_mod, TSE_MODIFIER, index);
+      ten->name = md->name;
+      ten->directdata = md;
+
+      if (md->type == eGpencilModifierType_Armature) {
+        outliner_add_element(space_outliner,
+                             &ten->subtree,
+                             ((ArmatureGpencilModifierData *)md)->object,
+                             ten,
+                             TSE_LINKED_OB,
+                             0);
+      }
+      else if (md->type == eGpencilModifierType_Hook) {
+        outliner_add_element(space_outliner,
+                             &ten->subtree,
+                             ((HookGpencilModifierData *)md)->object,
+                             ten,
+                             TSE_LINKED_OB,
+                             0);
+      }
+      else if (md->type == eGpencilModifierType_Lattice) {
+        outliner_add_element(space_outliner,
+                             &ten->subtree,
+                             ((LatticeGpencilModifierData *)md)->object,
+                             ten,
+                             TSE_LINKED_OB,
+                             0);
+      }
+    }
+  }
+
+  /* Grease Pencil effects. */
+  if (!BLI_listbase_is_empty(&ob->shader_fx)) {
+    TreeElement *ten_fx = outliner_add_element(
+        space_outliner, &te->subtree, ob, te, TSE_GPENCIL_EFFECT_BASE, 0);
+
+    ten_fx->name = IFACE_("Effects");
+    int index;
+    LISTBASE_FOREACH_INDEX (ShaderFxData *, fx, &ob->shader_fx, index) {
+      TreeElement *ten = outliner_add_element(
+          space_outliner, &ten_fx->subtree, ob, ten_fx, TSE_GPENCIL_EFFECT, index);
+      ten->name = fx->name;
+      ten->directdata = fx;
+
+      if (fx->type == eShaderFxType_Swirl) {
+        outliner_add_element(space_outliner,
+                             &ten->subtree,
+                             ((SwirlShaderFxData *)fx)->object,
+                             ten,
+                             TSE_LINKED_OB,
+                             0);
+      }
+    }
+  }
+
   /* vertex groups */
   if (ob->defbase.first) {
     bDeformGroup *defgroup;