// Taken from https://github.com/ocornut/imgui/issues/1496#issuecomment-655048353
private static void BeginGroupPanel(string name, Vector2 size)
{
ImGui.BeginGroup();
var cursorPos = ImGui.GetCursorScreenPos();
var itemSpacing = ImGui.GetStyle().ItemSpacing;
ImGui.PushStyleVar(ImGuiStyleVar.FramePadding, 0f);
ImGui.PushStyleVar(ImGuiStyleVar.ItemSpacing, 0f);
var frameHeight = ImGui.GetFrameHeight();
ImGui.BeginGroup();
Vector2 effectiveSize = size;
if (size.X < 0.0f)
{
effectiveSize.X = ImGui.GetContentRegionAvail().X;
}
else
{
effectiveSize.X = size.X;
}
ImGui.Dummy(new Vector2(effectiveSize.X, 0.0f));
ImGui.Dummy(new Vector2(frameHeight * 0.5f, 0.0f));
ImGui.SameLine(0.0f, 0.0f);
ImGui.BeginGroup();
ImGui.Dummy(new Vector2(frameHeight * 0.5f, 0.0f));
ImGui.SameLine(0.0f, 0.0f);
ImGui.TextUnformatted(name);
var labelMin = ImGui.GetItemRectMin();
var labelMax = ImGui.GetItemRectMax();
ImGui.SameLine(0.0f, 0.0f);
ImGui.Dummy(new Vector2(0.0f, frameHeight + itemSpacing.Y));
ImGui.BeginGroup();
ImGui.PopStyleVar(2);
}
