Editor entity naming

include/Engine/Editor/EditorGUI.h

@@ -50,6 +50,9 @@ public:
     // Called when the user means to change the parent of an entity.
     typedef std::function<void(EntityWrapper, EntityWrapper)> OnEntityChangeParent_t;
     void SetEntityChangeParentCallback(OnEntityChangeParent_t f) { m_OnEntityChangeParent = f; }
+    // Called when the user means to rename an entity.
+    typedef std::function<void(EntityWrapper, const std::string&)> OnEntityChangeName_t;
+    void SetEntityChangeNameCallback(OnEntityChangeName_t f) { m_OnEntityChangeName = f; }
     // Called when the user means to attach a new component to an entity.
     typedef std::function<void(EntityWrapper, const std::string&)> OnComponentAttach_t;
     void SetComponentAttachCallback(OnComponentAttach_t f) { m_OnComponentAttach = f; }
@@ -77,6 +80,7 @@ private:
     OnEntityCreate_t m_OnEntityCreate = nullptr;
     OnEntityDelete_t m_OnEntityDelete = nullptr;
     OnEntityChangeParent_t m_OnEntityChangeParent = nullptr;
+    OnEntityChangeName_t m_OnEntityChangeName = nullptr;
     OnComponentAttach_t m_OnComponentAttach = nullptr;
     OnComponentDelete_t m_OnComponentDelete = nullptr;
 

include/Engine/Editor/EditorSystem.h

@@ -41,6 +41,7 @@ private:
     EntityWrapper OnEntityCreate(EntityWrapper parent);
     void OnEntityDelete(EntityWrapper entity);
     void OnEntityChangeParent(EntityWrapper entity, EntityWrapper parent);
+    void OnEntityChangeName(EntityWrapper entity, const std::string& name);
     void OnComponentAttach(EntityWrapper entity, const std::string& componentType);
     void OnComponentDelete(EntityWrapper entity, const std::string& componentType);
 };

src/Engine/Editor/EditorGUI.cpp

@@ -101,6 +101,31 @@ void EditorGUI::drawEntities(World* world)
     ImGui::SameLine(0.f, 5.f);
     ImGui::Button("Reference", ImVec2(buttonWidth, 0));
 
+    // Naming
+    char buffer[256];
+    buffer[0] = '\0';
+    buffer[255] = '\0';
+    std::size_t nameLength = 0;
+    ImGuiInputTextFlags flags = ImGuiInputTextFlags_CharsNoBlank | ImGuiInputTextFlags_AutoSelectAll;
+    if (m_CurrentSelection.Valid()) {
+        std::string name = world->GetName(m_CurrentSelection.ID);
+        nameLength = name.length();
+        if (!name.empty()) {
+            memcpy(buffer, name.c_str(), std::min(sizeof(buffer) - 1, name.length() + 1));
+        }
+    } else {
+        flags |= ImGuiInputTextFlags_ReadOnly;
+    }
+    ImGui::PushItemWidth(ImGui::GetContentRegionAvailWidth() - 7.f);
+    if (ImGui::InputText("", &buffer[0], sizeof(buffer), flags)) {
+        if (m_CurrentSelection.Valid()) {
+            if (m_OnEntityChangeName != nullptr) {
+                m_OnEntityChangeName(m_CurrentSelection, std::string(buffer));
+            }
+        }
+    }
+    ImGui::PopItemWidth();
+
     ImGui::ItemSize(ImVec2(0, 3));
 
     drawEntitiesRecursive(world, EntityID_Invalid);
@@ -487,7 +512,7 @@ const std::string EditorGUI::formatEntityName(EntityWrapper entity)
 
     std::stringstream name;
 
-    const std::string& entityName = entity.World->GetName(entity);
+    std::string entityName = entity.World->GetName(entity.ID);
     if (!entityName.empty()) {
         name << entityName;
     } else {

src/Engine/Editor/EditorSystem.cpp

@@ -26,6 +26,7 @@ EditorSystem::EditorSystem(World* world, EventBroker* eventBroker, IRenderer* re
     m_EditorGUI->SetEntityCreateCallback(std::bind(&EditorSystem::OnEntityCreate, this, std::placeholders::_1));
     m_EditorGUI->SetEntityDeleteCallback(std::bind(&EditorSystem::OnEntityDelete, this, std::placeholders::_1));
     m_EditorGUI->SetEntityChangeParentCallback(std::bind(&EditorSystem::OnEntityChangeParent, this, std::placeholders::_1, std::placeholders::_2));
+    m_EditorGUI->SetEntityChangeNameCallback(std::bind(&EditorSystem::OnEntityChangeName, this, std::placeholders::_1, std::placeholders::_2));
     m_EditorGUI->SetComponentAttachCallback(std::bind(&EditorSystem::OnComponentAttach, this, std::placeholders::_1, std::placeholders::_2));
     m_EditorGUI->SetComponentDeleteCallback(std::bind(&EditorSystem::OnComponentDelete, this, std::placeholders::_1, std::placeholders::_2));
 
@@ -85,6 +86,11 @@ void EditorSystem::OnEntityChangeParent(EntityWrapper entity, EntityWrapper pare
     entity.World->SetParent(entity.ID, parent.ID);
 }
 
+void EditorSystem::OnEntityChangeName(EntityWrapper entity, const std::string& name)
+{
+    entity.World->SetName(entity.ID, name);
+}
+
 void EditorSystem::OnComponentAttach(EntityWrapper entity, const std::string& componentType)
 {
     entity.World->AttachComponent(entity.ID, componentType);