Internals, CollapsingHeader, TabItem: Standardized using a #CLOSE id prefix for TabItem and ColllapsingHeader (same as window)

imgui.cpp

@@ -6742,6 +6742,20 @@ void ImGui::PushOverrideID(ImGuiID id)
     window->IDStack.push_back(id);
 }
 
+// Helper to avoid a common series of PushOverrideID -> GetID() -> PopID() call
+// (note that when using this pattern, TestEngine's "Stack Tool" will tend to not display the intermediate stack level.
+//  for that to work we would need to do PushOverrideID() -> ItemAdd() -> PopID() which would alter widget code a little more)
+ImGuiID ImGui::GetIDWithSeed(const char* str, const char* str_end, ImGuiID seed)
+{
+    ImGuiID id = ImHashStr(str, str_end ? (str_end - str) : 0, seed);
+    ImGui::KeepAliveID(id);
+#ifdef IMGUI_ENABLE_TEST_ENGINE
+    ImGuiContext& g = *GImGui;
+    IMGUI_TEST_ENGINE_ID_INFO2(id, ImGuiDataType_String, str, str_end);
+#endif
+    return id;
+}
+
 void ImGui::PopID()
 {
     ImGuiWindow* window = GImGui->CurrentWindow;