Function SetupDrawData

lib/imgui/imgui.cpp:4045–4060

}

static void SetupDrawData(ImVector<ImDrawList*>* draw_lists, ImDrawData* draw_data)
{
    ImGuiIO& io = ImGui::GetIO();
    draw_data->Valid = true;
    draw_data->CmdLists = (draw_lists->Size > 0) ? draw_lists->Data : NULL;
    draw_data->CmdListsCount = draw_lists->Size;
    draw_data->TotalVtxCount = draw_data->TotalIdxCount = 0;
    draw_data->DisplayPos = ImVec2(0.0f, 0.0f);
    draw_data->DisplaySize = io.DisplaySize;
    draw_data->FramebufferScale = io.DisplayFramebufferScale;
    for (int n = 0; n < draw_lists->Size; n++)
    {
        draw_data->TotalVtxCount += draw_lists->Data[n]->VtxBuffer.Size;
        draw_data->TotalIdxCount += draw_lists->Data[n]->IdxBuffer.Size;
    }
}

// When using this function it is sane to ensure that float are perfectly rounded to integer values, to that e.g. (int)(max.x-min.x) in user's render produce correct result.
void ImGui::PushClipRect(const ImVec2& clip_rect_min, const ImVec2& clip_rect_max, bool intersect_with_current_clip_rect)