Timeline Prototype

src/ui/Application.cpp

@@ -69,11 +69,19 @@ bool Application::Initialize(const std::string& windowTitle, int width, int heig
     m_propertyPanel->SetPropertyManager(m_propertyManager.get());
     m_propertyPanel->SetCommandHistory(&m_commandHistory);
 
+    m_timelinePanel = std::make_unique<TimelinePanel>();
+    m_timelinePanel->OnTimeChanged = [this](pxr::UsdTimeCode displayTime,
+                                            pxr::UsdTimeCode editTime) {
+        m_viewportPanel->SetTimeCodes(displayTime, editTime);
+        m_propertyPanel->SetTimeCodes(displayTime, editTime);
+    };
+
     // Initialize IconManager — must happen after OpenGL context is ready (ImGui init above).
     m_iconManager = std::make_unique<IconManager>();
     m_iconManager->Initialize(ResourcePath("resources/icons"), 24);
     m_sceneHierarchyPanel->SetIconManager(m_iconManager.get());
     m_viewportPanel->SetIconManager(m_iconManager.get());
+    m_timelinePanel->SetIconManager(m_iconManager.get());
 
     m_sceneHierarchyPanel->SetOnPrimSelected(
         [this](const std::string& path) {
@@ -155,19 +163,23 @@ void Application::RefreshManagers() {
         m_viewportPanel->SetStage(stage);
         m_viewportPanel->FrameScene();
         m_propertyPanel->SetStage(stage);
+        m_timelinePanel->SetStage(stage);
     } else {
         m_layerManager->SetStage(nullptr);
         m_propertyManager->SetStage(nullptr);
         m_sceneHierarchyPanel->SetStage(nullptr);
         m_viewportPanel->SetStage(nullptr);
         m_propertyPanel->SetStage(nullptr);
+        m_timelinePanel->SetStage(nullptr);
     }
 }
 
 void Application::Update() {
+    ImGuiIO& io = ImGui::GetIO();
+    m_timelinePanel->Update(io.DeltaTime);
+
     // Process undo/redo hotkeys (Ctrl+Z / Ctrl+Y / Ctrl+Shift+Z).
     // Only fire when no ImGui text-input widget has keyboard focus.
-    ImGuiIO& io = ImGui::GetIO();
     if (!io.WantTextInput) {
         if (io.KeyCtrl && !io.KeyShift && ImGui::IsKeyPressed(ImGuiKey_Z, false)) {
             m_commandHistory.Undo();
@@ -211,6 +223,10 @@ void Application::RenderUI() {
     m_propertyPanel->Render();
     ImGui::End();
 
+    ImGui::Begin("Timeline", nullptr, ImGuiWindowFlags_NoCollapse);
+    m_timelinePanel->Render();
+    ImGui::End();
+
     m_imguiContext->Render();
 }