Demo: amend Selectable() + BeginPopupContextItem() demo to maintain and update selection state when popup is open. (#6032)

ago%!(EXTRA string=2 years) · 156e0a8070
parent e5d51866c6
commit 156e0a8070
1 changed files with 4 additions and 1 deletions
--- a/imgui_demo.cpp
+++ b/imgui_demo.cpp
@ -3438,11 +3438,14 @@ static void ShowDemoWindowPopups()
        // and BeginPopupContextItem() will use the last item ID as the popup ID.
        {
            const char* names[5] = { "Label1", "Label2", "Label3", "Label4", "Label5" };
+            static int selected = -1;
            for (int n = 0; n < 5; n++)
            {
-                ImGui::Selectable(names[n]);
+                if (ImGui::Selectable(names[n], selected == n))
+                    selected = n;
                if (ImGui::BeginPopupContextItem()) // <-- use last item id as popup id
                {
+                    selected = n;
                    ImGui::Text("This a popup for \"%s\"!", names[n]);
                    if (ImGui::Button("Close"))
                        ImGui::CloseCurrentPopup();