From e816df28a8ee9b18b2b44425dca19b4e75da65e2 Mon Sep 17 00:00:00 2001
From: Kah Wei <msntkw@msn.com>
Date: Thu, 9 Mar 2023 12:07:07 +0800
Subject: [PATCH] Clips can now be dragged and dropped into the animation
 controller editor

---
 .../Animation/SHAnimationControllerEditor.cpp | 39 +++++++++++++++----
 .../SHRawAnimInspector.cpp                    |  1 -
 SHADE_Engine/src/Editor/SHEditorWidgets.hpp   |  6 ++-
 3 files changed, 37 insertions(+), 9 deletions(-)

diff --git a/SHADE_Engine/src/Editor/EditorWindow/Animation/SHAnimationControllerEditor.cpp b/SHADE_Engine/src/Editor/EditorWindow/Animation/SHAnimationControllerEditor.cpp
index a67c6a67..17b252f9 100644
--- a/SHADE_Engine/src/Editor/EditorWindow/Animation/SHAnimationControllerEditor.cpp
+++ b/SHADE_Engine/src/Editor/EditorWindow/Animation/SHAnimationControllerEditor.cpp
@@ -25,11 +25,14 @@ of DigiPen Institute of Technology is prohibited.
 #include "Editor/SHEditorWidgets.hpp"
 #include "Editor/Command/SHCommand.hpp"
 #include "Input/SHInputManager.h"
+#include "Resource/SHResourceManager.h"
+#include "Editor/EditorWindow/SHEditorWindowManager.h"
+#include "Editor/EditorWindow/AssetBrowser/SHAssetBrowser.h"
 
 namespace SHADE
 {
   /*-----------------------------------------------------------------------------------*/
-  /* Cosntructors/Destructors                                                          */
+  /* Constructors/Destructors                                                          */
   /*-----------------------------------------------------------------------------------*/
   SHAnimationControllerEditor::SHAnimationControllerEditor()
   : SHEditorWindow("Animation Controller Editor", ImGuiWindowFlags_MenuBar)
@@ -318,6 +321,7 @@ namespace SHADE
   void SHAnimationControllerEditor::drawNodeEditor()
   {
     static constexpr float NODE_WIDTH = 80.0f;
+    static constexpr float TEXT_FIELD_PADDING = 15.0f;
 
     ImNodes::BeginNodeEditor();
     {
@@ -346,8 +350,8 @@ namespace SHADE
                 node.EditingName = false;
               }
               ImGui::SameLine();
-              static constexpr float TEXT_FIELD_PADDING = 15.0f;
               ImGui::SetNextItemWidth(std::max(ImGui::CalcTextSize(node.Name.c_str()).x + TEXT_FIELD_PADDING, NODE_WIDTH));
+
               SHEditorUI::InputTextField("", node.Name);
             }
             else
@@ -363,11 +367,32 @@ namespace SHADE
           ImNodes::EndNodeTitleBar();
 
           // Body
-          ImGui::Text("Clip");
-          ImGui::SameLine();
-          std::array<char, 255> buffer = { '\0' };
-          ImGui::SetNextItemWidth(std::max(NODE_WIDTH, ImGui::CalcTextSize(buffer.data()).x));
-          ImGui::InputText("", buffer.data(), buffer.size());
+          const auto CLIP_NAME = SHResourceManager::GetAssetName<SHAnimationClip>(node.Clip).value_or("");
+          ImGui::SetNextItemWidth(NODE_WIDTH);
+          SHEditorWidgets::DragDropReadOnlyField<AssetID>
+          (
+            "Clip", CLIP_NAME, 
+            [&]()
+            {
+              return SHResourceManager::GetAssetID<SHAnimationClip>(node.Clip).value_or(0);
+            },
+            [&](AssetID id)
+            {
+              if (SHAssetManager::GetType(id) != AssetType::ANIM_CLIP)
+                return;
+              node.Clip = SHResourceManager::LoadOrGet<SHAnimationClip>(id);
+              SHResourceManager::FinaliseChanges();
+            },
+            SHDragDrop::DRAG_RESOURCE, {}, NODE_WIDTH
+          );
+          if (ImGui::IsItemHovered() && ImGui::IsMouseDoubleClicked(ImGuiMouseButton_Left))
+          {
+            if (node.Clip)
+            {
+              AssetID assetID = SHResourceManager::GetAssetID<SHAnimationClip>(node.Clip).value_or(0);
+              SHEditorWindowManager::GetEditorWindow<SHAssetBrowser>()->SetScrollTo(assetID);
+            }
+          }
 
           // Input Nodes
           for (auto inputAttrib : node.InputAttribs)
diff --git a/SHADE_Engine/src/Editor/EditorWindow/RawAnimationInspector/SHRawAnimInspector.cpp b/SHADE_Engine/src/Editor/EditorWindow/RawAnimationInspector/SHRawAnimInspector.cpp
index 75ab7945..0391f75d 100644
--- a/SHADE_Engine/src/Editor/EditorWindow/RawAnimationInspector/SHRawAnimInspector.cpp
+++ b/SHADE_Engine/src/Editor/EditorWindow/RawAnimationInspector/SHRawAnimInspector.cpp
@@ -5,7 +5,6 @@
 \date           Mar 1, 2023
 \brief			    Contains the definition of SHRawAnimInspector's functions.
 
-
 Copyright (C) 2023 DigiPen Institute of Technology.
 Reproduction or disclosure of this file or its contents without the prior written consent
 of DigiPen Institute of Technology is prohibited.
diff --git a/SHADE_Engine/src/Editor/SHEditorWidgets.hpp b/SHADE_Engine/src/Editor/SHEditorWidgets.hpp
index 2698e3f2..124bbfb3 100644
--- a/SHADE_Engine/src/Editor/SHEditorWidgets.hpp
+++ b/SHADE_Engine/src/Editor/SHEditorWidgets.hpp
@@ -418,12 +418,16 @@ namespace SHADE
     }
 
     template<typename T>
-    static bool DragDropReadOnlyField(std::string const& label, std::string_view const& fieldVTextValue, std::function<T (void)> const& get, std::function<void(T const&)> const& set, SHDragDrop::DragDropTag const& dragDropTag, std::string_view const& tooltip = {})
+    static bool DragDropReadOnlyField(std::string const& label, std::string_view const& fieldVTextValue, std::function<T (void)> const& get, std::function<void(T const&)> const& set, SHDragDrop::DragDropTag const& dragDropTag, std::string_view const& tooltip = {}, float customWidth = -1.0f)
     {
       std::string text = fieldVTextValue.data();
       ImGui::BeginGroup();
       ImGui::PushID(label.data());
       TextLabel(label);
+      if (customWidth > 0.0f)
+      {
+        ImGui::SetNextItemWidth(customWidth);
+      }
       bool changed = ImGui::InputText("##inputText", &text, ImGuiInputTextFlags_ReadOnly | ImGuiInputTextFlags_AutoSelectAll, nullptr, nullptr);
       if(SHDragDrop::BeginTarget())
       {