Method TableSetColumnSortDirection

src/third-party/imgui/imgui_tables.cpp:2655–2686

Note that the NoSortAscending/NoSortDescending flags are processed in TableSortSpecsSanitize(), and they may change/revert the value of SortDirection. We could technically also do it here but it would be unnecessary and duplicate code.

// Note that the NoSortAscending/NoSortDescending flags are processed in TableSortSpecsSanitize(), and they may change/revert
// the value of SortDirection. We could technically also do it here but it would be unnecessary and duplicate code.
void ImGui::TableSetColumnSortDirection(int column_n, ImGuiSortDirection sort_direction, bool append_to_sort_specs)
{
    ImGuiContext& g = *GImGui;
    ImGuiTable* table = g.CurrentTable;

    if (!(table->Flags & ImGuiTableFlags_SortMulti))
        append_to_sort_specs = false;
    if (!(table->Flags & ImGuiTableFlags_SortTristate))
        IM_ASSERT(sort_direction != ImGuiSortDirection_None);

    ImGuiTableColumnIdx sort_order_max = 0;
    if (append_to_sort_specs)
        for (int other_column_n = 0; other_column_n < table->ColumnsCount; other_column_n++)
            sort_order_max = ImMax(sort_order_max, table->Columns[other_column_n].SortOrder);

    ImGuiTableColumn* column = &table->Columns[column_n];
    column->SortDirection = (ImU8)sort_direction;
    if (column->SortDirection == ImGuiSortDirection_None)
        column->SortOrder = -1;
    else if (column->SortOrder == -1 || !append_to_sort_specs)
        column->SortOrder = append_to_sort_specs ? sort_order_max + 1 : 0;

    for (int other_column_n = 0; other_column_n < table->ColumnsCount; other_column_n++)
    {
        ImGuiTableColumn* other_column = &table->Columns[other_column_n];
        if (other_column != column && !append_to_sort_specs)
            other_column->SortOrder = -1;
        TableFixColumnSortDirection(table, other_column);
    }
    table->IsSettingsDirty = true;
    table->IsSortSpecsDirty = true;
}

void ImGui::TableSortSpecsSanitize(ImGuiTable* table)
{