basic hierarchy and inspector widgets impl

sources/enduro2d/high/widgets/hierarchy_widget.cpp

@@ -6,6 +6,78 @@
 
 #include "hierarchy_widget.hpp"
 
+#include <enduro2d/high/editor.hpp>
+#include <enduro2d/high/gobject.hpp>
+#include <enduro2d/high/node.hpp>
+#include <enduro2d/high/world.hpp>
+
+#include <enduro2d/high/components/actor.hpp>
+#include <enduro2d/high/components/named.hpp>
+#include <enduro2d/high/components/scene.hpp>
+
+namespace
+{
+    using namespace e2d;
+
+    void show_tree_for_node(const const_node_iptr& root) {
+        const gobject owner = root ? root->owner() : gobject();
+        if ( !owner ) {
+            return;
+        }
+
+        const str basic_name = owner.component<scene>().exists()
+            ? "Scene"
+            : "Node";
+
+        const str component_name = owner.component<named>()
+            ? owner.component<named>()->name()
+            : str();
+
+        const str tree_node_name = component_name.empty()
+            ? basic_name
+            : strings::rformat("%0(%1)", basic_name, component_name);
+
+        ImGui::PushID(root.get());
+        E2D_DEFER([](){ ImGui::PopID(); });
+
+        ImGuiTreeNodeFlags tree_node_flags =
+            ImGuiTreeNodeFlags_OpenOnArrow |
+            ImGuiTreeNodeFlags_OpenOnDoubleClick;
+
+        if ( !root->has_children() ) {
+            tree_node_flags |= ImGuiTreeNodeFlags_Leaf;
+        }
+
+        editor& e = the<editor>();
+
+        if ( e.selection() == owner ) {
+            tree_node_flags |= ImGuiTreeNodeFlags_Selected;
+        }
+
+        const bool tree_node_opened =
+            ImGui::TreeNodeEx(tree_node_name.c_str(), tree_node_flags);
+
+        if ( ImGui::IsItemClicked() ) {
+            e.select(owner);
+        }
+
+        if ( tree_node_opened ) {
+            E2D_DEFER([](){ ImGui::TreePop(); });
+
+            root->for_each_child([](const const_node_iptr& child){
+                show_tree_for_node(child);
+            });
+        }
+    }
+
+    void show_tree_for_all_scenes(const ecs::registry& owner) {
+        owner.for_joined_components<scene, actor>(
+        [](const ecs::const_entity&, const scene&, const actor& a){
+            show_tree_for_node(a.node());
+        });
+    }
+}
+
 namespace e2d::dbgui_widgets
 {
     hierarchy_widget::hierarchy_widget() {
@@ -14,6 +86,16 @@ namespace e2d::dbgui_widgets
     }
 
     bool hierarchy_widget::show() {
+        if ( !modules::is_initialized<editor>() ) {
+            return false;
+        }
+        
+        if ( !modules::is_initialized<world>() ) {
+            return false;
+        }
+
+        show_tree_for_all_scenes(the<world>().registry());
+
         return true;
     }
 

sources/enduro2d/high/widgets/inspector_widget.cpp

@@ -6,6 +6,10 @@
 
 #include "inspector_widget.hpp"
 
+#include <enduro2d/high/editor.hpp>
+#include <enduro2d/high/gobject.hpp>
+#include <enduro2d/high/inspector.hpp>
+
 namespace e2d::dbgui_widgets
 {
     inspector_widget::inspector_widget() {
@@ -14,6 +18,17 @@ namespace e2d::dbgui_widgets
     }
 
     bool inspector_widget::show() {
+        if ( !modules::is_initialized<editor>() ) {
+            return false;
+        }
+
+        if ( !modules::is_initialized<inspector>() ) {
+            return false;
+        }
+
+        gobject go = the<editor>().selection();
+        the<inspector>().show_inspector_for(go);
+
         return true;
     }