Editor: 更新编辑器面板和UI控件系统

- 添加新的UI控件系统(Core.h, ScalarControls.h, VectorControls.h, UI.h)
- 更新SceneManager支持场景层级管理
- 优化SelectionManager选择管理
- 改进InspectorPanel/GameViewPanel/HierarchyPanel等面板
- 更新RHI文档说明Vulkan实现计划

editor/src/UI/VectorControls.h

@@ -0,0 +1,150 @@
+#pragma once
+
+#include <imgui.h>
+#include <XCEngine/Core/Math/Vector3.h>
+#include <XCEngine/Core/Math/Vector2.h>
+
+namespace XCEngine {
+namespace Editor {
+namespace UI {
+
+inline bool DrawVec3(
+    const char* label,
+    ::XCEngine::Math::Vector3& values,
+    float resetValue = 0.0f,
+    float columnWidth = 100.0f,
+    float dragSpeed = 0.1f
+) {
+    bool changed = false;
+    ImGui::PushID(label);
+
+    ImGui::PushStyleVar(ImGuiStyleVar_CellPadding, ImVec2{0, 1});
+    ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2{4, 1});
+
+    if (ImGui::BeginTable("##Vec3Table", 2, ImGuiTableFlags_NoSavedSettings)) {
+        ImGui::TableSetupColumn("##label", ImGuiTableColumnFlags_WidthFixed, columnWidth);
+        ImGui::TableSetupColumn("##controls", ImGuiTableColumnFlags_WidthStretch);
+
+        ImGui::TableNextRow(ImGuiTableRowFlags_None, ImGui::GetFontSize() + 2.0f);
+
+        ImGui::TableNextColumn();
+        ImGui::AlignTextToFramePadding();
+        ImGui::Text(label);
+
+        ImGui::TableNextColumn();
+
+        ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2{0, 0});
+
+        float lineHeight = ImGui::GetFontSize() + ImGui::GetStyle().FramePadding.y * 2.0f;
+        ImVec2 buttonSize = {lineHeight + 3.0f, lineHeight};
+        float itemWidth = (ImGui::GetContentRegionAvail().x - buttonSize.x * 3.0f) / 3.0f;
+
+        auto drawAxisControl = [&](const char* axisLabel, float& value, ImVec4 color, ImVec4 colorHovered) {
+            bool axisChanged = false;
+
+            ImGui::PushStyleColor(ImGuiCol_Button, color);
+            ImGui::PushStyleColor(ImGuiCol_ButtonHovered, colorHovered);
+            ImGui::PushStyleColor(ImGuiCol_ButtonActive, color);
+
+            if (ImGui::Button(axisLabel, buttonSize)) {
+                value = resetValue;
+                axisChanged = true;
+            }
+            ImGui::PopStyleColor(3);
+
+            ImGui::SameLine();
+            ImGui::SetNextItemWidth(itemWidth);
+
+            if (ImGui::DragFloat((std::string("##") + axisLabel).c_str(), &value, dragSpeed, 0.0f, 0.0f, "%.2f")) {
+                axisChanged = true;
+            }
+            ImGui::SameLine();
+
+            return axisChanged;
+        };
+
+        changed |= drawAxisControl("X", values.x, ImVec4{0.8f, 0.1f, 0.15f, 1.0f}, ImVec4{0.9f, 0.2f, 0.2f, 1.0f});
+        changed |= drawAxisControl("Y", values.y, ImVec4{0.2f, 0.7f, 0.2f, 1.0f}, ImVec4{0.3f, 0.8f, 0.3f, 1.0f});
+        changed |= drawAxisControl("Z", values.z, ImVec4{0.1f, 0.25f, 0.8f, 1.0f}, ImVec4{0.2f, 0.35f, 0.9f, 1.0f});
+
+        ImGui::PopStyleVar();
+        ImGui::EndTable();
+    }
+
+    ImGui::PopStyleVar(2);
+    ImGui::PopID();
+
+    return changed;
+}
+
+inline bool DrawVec2(
+    const char* label,
+    ::XCEngine::Math::Vector2& values,
+    float resetValue = 0.0f,
+    float columnWidth = 100.0f,
+    float dragSpeed = 0.1f
+) {
+    bool changed = false;
+    ImGui::PushID(label);
+
+    ImGui::PushStyleVar(ImGuiStyleVar_CellPadding, ImVec2{0, 1});
+    ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2{4, 1});
+
+    if (ImGui::BeginTable("##Vec2Table", 2, ImGuiTableFlags_NoSavedSettings)) {
+        ImGui::TableSetupColumn("##label", ImGuiTableColumnFlags_WidthFixed, columnWidth);
+        ImGui::TableSetupColumn("##controls", ImGuiTableColumnFlags_WidthStretch);
+
+        ImGui::TableNextRow(ImGuiTableRowFlags_None, ImGui::GetFontSize() + 2.0f);
+
+        ImGui::TableNextColumn();
+        ImGui::AlignTextToFramePadding();
+        ImGui::Text(label);
+
+        ImGui::TableNextColumn();
+
+        ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2{0, 0});
+
+        float lineHeight = ImGui::GetFontSize() + ImGui::GetStyle().FramePadding.y * 2.0f;
+        ImVec2 buttonSize = {lineHeight + 3.0f, lineHeight};
+        float itemWidth = (ImGui::GetContentRegionAvail().x - buttonSize.x * 2.0f) / 2.0f;
+
+        auto drawAxisControl = [&](const char* axisLabel, float& value, ImVec4 color, ImVec4 colorHovered) {
+            bool axisChanged = false;
+
+            ImGui::PushStyleColor(ImGuiCol_Button, color);
+            ImGui::PushStyleColor(ImGuiCol_ButtonHovered, colorHovered);
+            ImGui::PushStyleColor(ImGuiCol_ButtonActive, color);
+
+            if (ImGui::Button(axisLabel, buttonSize)) {
+                value = resetValue;
+                axisChanged = true;
+            }
+            ImGui::PopStyleColor(3);
+
+            ImGui::SameLine();
+            ImGui::SetNextItemWidth(itemWidth);
+
+            if (ImGui::DragFloat((std::string("##") + axisLabel).c_str(), &value, dragSpeed, 0.0f, 0.0f, "%.2f")) {
+                axisChanged = true;
+            }
+            ImGui::SameLine();
+
+            return axisChanged;
+        };
+
+        changed |= drawAxisControl("X", values.x, ImVec4{0.8f, 0.1f, 0.15f, 1.0f}, ImVec4{0.9f, 0.2f, 0.2f, 1.0f});
+        changed |= drawAxisControl("Y", values.y, ImVec4{0.2f, 0.7f, 0.2f, 1.0f}, ImVec4{0.3f, 0.8f, 0.3f, 1.0f});
+
+        ImGui::PopStyleVar();
+        ImGui::EndTable();
+    }
+
+    ImGui::PopStyleVar(2);
+    ImGui::PopID();
+
+    return changed;
+}
+
+}
+}
+}