Method TableDrawDefaultContextMenu

src/imgui/imgui_tables.cpp:3517–3604

Output context menu into current window (generally a popup) FIXME-TABLE: Ideally this should be writable by the user. Full programmatic access to that data? Sections to display are pulled from 'flags_for_section_to_display', which is typically == table->Flags. - ImGuiTableFlags_Resizable -> display Sizing menu items - ImGuiTableFlags_Reorderable -> display "Reset Order" /- ImGuiTableFlags_Sortab

// - ImGuiTableFlags_Hideable    -> display columns visibility menu items
// It means if you have a custom context menus you can call this section and omit some sections, and add your own.
void ImGui::TableDrawDefaultContextMenu(ImGuiTable* table, ImGuiTableFlags flags_for_section_to_display)
{
    ImGuiContext& g = *GImGui;
    ImGuiWindow* window = g.CurrentWindow;
    if (window->SkipItems)
        return;

    bool want_separator = false;
    const int column_n = (table->ContextPopupColumn >= 0 && table->ContextPopupColumn < table->ColumnsCount) ? table->ContextPopupColumn : -1;
    ImGuiTableColumn* column = (column_n != -1) ? &table->Columns[column_n] : NULL;

    // Sizing
    if (flags_for_section_to_display & ImGuiTableFlags_Resizable)
    {
        if (column != NULL)
        {
            const bool can_resize = !(column->Flags & ImGuiTableColumnFlags_NoResize) && column->IsEnabled;
            if (MenuItem(LocalizeGetMsg(ImGuiLocKey_TableSizeOne), NULL, false, can_resize)) // "###SizeOne"
                TableSetColumnWidthAutoSingle(table, column_n);
        }

        const char* size_all_desc;
        if (table->ColumnsEnabledFixedCount == table->ColumnsEnabledCount && (table->Flags & ImGuiTableFlags_SizingMask_) != ImGuiTableFlags_SizingFixedSame)
            size_all_desc = LocalizeGetMsg(ImGuiLocKey_TableSizeAllFit);        // "###SizeAll" All fixed
        else
            size_all_desc = LocalizeGetMsg(ImGuiLocKey_TableSizeAllDefault);    // "###SizeAll" All stretch or mixed
        if (MenuItem(size_all_desc, NULL))
            TableSetColumnWidthAutoAll(table);
        want_separator = true;
    }

    // Ordering
    if (flags_for_section_to_display & ImGuiTableFlags_Reorderable)
    {
        if (MenuItem(LocalizeGetMsg(ImGuiLocKey_TableResetOrder), NULL, false, !table->IsDefaultDisplayOrder))
            table->IsResetDisplayOrderRequest = true;
        want_separator = true;
    }

    // Reset all (should work but seems unnecessary/noisy to expose?)
    //if (MenuItem("Reset all"))
    //    table->IsResetAllRequest = true;

    // Sorting
    // (modify TableOpenContextMenu() to add _Sortable flag if enabling this)
#if 0
    if ((flags_for_section_to_display & ImGuiTableFlags_Sortable) && column != NULL && (column->Flags & ImGuiTableColumnFlags_NoSort) == 0)
    {
        if (want_separator)
            Separator();
        want_separator = true;

        bool append_to_sort_specs = g.IO.KeyShift;
        if (MenuItem("Sort in Ascending Order", NULL, column->SortOrder != -1 && column->SortDirection == ImGuiSortDirection_Ascending, (column->Flags & ImGuiTableColumnFlags_NoSortAscending) == 0))
            TableSetColumnSortDirection(table, column_n, ImGuiSortDirection_Ascending, append_to_sort_specs);
        if (MenuItem("Sort in Descending Order", NULL, column->SortOrder != -1 && column->SortDirection == ImGuiSortDirection_Descending, (column->Flags & ImGuiTableColumnFlags_NoSortDescending) == 0))
            TableSetColumnSortDirection(table, column_n, ImGuiSortDirection_Descending, append_to_sort_specs);
    }