添加D3D12 ImGui编辑器UI框架

ui/src/panels/ProjectPanel.cpp

@@ -0,0 +1,88 @@
+#include "ProjectPanel.h"
+#include <imgui.h>
+#include <imgui_internal.h>
+
+namespace UI {
+
+ProjectPanel::ProjectPanel() : Panel("Project") {
+    m_folders = {"Assets", "Scenes", "Scripts", "Materials", "Prefabs"};
+    
+    m_items = {
+        {"Cube", "Prefab", false},
+        {"Sphere", "Prefab", false},
+        {"Player", "Prefab", false},
+        {"MainScript", "Script", false},
+        {"DefaultMat", "Material", false},
+        {"Scene1", "Scene", false},
+        {"Textures", "Folder", true},
+        {"Models", "Folder", true},
+    };
+}
+
+void ProjectPanel::Render() {
+    ImGui::Begin(m_name.c_str(), &m_isOpen, ImGuiWindowFlags_None);
+    
+    ImGui::Text("Assets/");
+    ImGui::SameLine();
+    ImGui::TextColored(ImVec4(0.5f, 0.5f, 0.5f, 1.0f), "> Project");
+    
+    ImGui::Separator();
+    
+    ImGui::BeginChild("AssetList", ImVec2(0, 0), false);
+    
+    float buttonWidth = 80.0f;
+    float buttonHeight = 90.0f;
+    float padding = 10.0f;
+    float panelWidth = ImGui::GetContentRegionAvail().x;
+    int columns = (int)(panelWidth / (buttonWidth + padding));
+    if (columns < 1) columns = 1;
+    
+    for (int i = 0; i < m_items.size(); i++) {
+        if (i > 0 && i % columns != 0) {
+            ImGui::SameLine();
+        }
+        RenderAssetItem(m_items[i], i);
+    }
+    
+    ImGui::EndChild();
+    ImGui::End();
+}
+
+void ProjectPanel::RenderAssetItem(const AssetItem& item, int index) {
+    ImGui::PushID(index);
+    
+    bool isSelected = (m_selectedIndex == index);
+    if (isSelected) {
+        ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0.26f, 0.59f, 0.98f, 0.40f));
+    }
+    
+    ImVec2 buttonSize(80.0f, 90.0f);
+    if (ImGui::Button("##Asset", buttonSize)) {
+        m_selectedIndex = index;
+    }
+    
+    if (isSelected) {
+        ImGui::PopStyleColor();
+    }
+    
+    ImVec2 min = ImGui::GetItemRectMin();
+    ImVec2 max = ImGui::GetItemRectMax();
+    ImDrawList* drawList = ImGui::GetWindowDrawList();
+    
+    ImU32 iconColor = item.isFolder ? IM_COL32(200, 180, 100, 255) : IM_COL32(100, 150, 200, 255);
+    
+    float iconSize = 40.0f;
+    ImVec2 iconMin(min.x + (80.0f - iconSize) * 0.5f, min.y + 10.0f);
+    ImVec2 iconMax(iconMin.x + iconSize, iconMin.y + iconSize);
+    drawList->AddRectFilled(iconMin, iconMax, iconColor, 4.0f);
+    
+    ImVec2 textPos(min.x + 5.0f, min.y + 60.0f);
+    ImVec4 textColor = isSelected ? ImVec4(1.0f, 1.0f, 1.0f, 1.0f) : ImVec4(0.8f, 0.8f, 0.8f, 1.0f);
+    ImVec2 textSize = ImGui::CalcTextSize(item.name.c_str());
+    float textOffset = (80.0f - textSize.x) * 0.5f;
+    drawList->AddText(ImVec2(min.x + textOffset, textPos.y), ImGui::GetColorU32(textColor), item.name.c_str());
+    
+    ImGui::PopID();
+}
+
+}