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Viewports: fixed issue in UpdateTryMergeWindowIntoHostViewport(). (#8948)

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Amend dfe308b
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ocornut
2025-09-30 18:27:20 +02:00
parent 50a8bb2711
commit e7aa0dec5b
1 changed files with 4 additions and 2 deletions
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6
imgui.cpp
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@@ -16337,6 +16337,7 @@ static bool ImGui::GetWindowAlwaysWantOwnViewport(ImGuiWindow* window)
// Heuristic, see #8948: depends on how backends handle OS-level parenting.
// FIXME-VIEWPORTS: if ImGuiBackendFlags_HasParentViewportId if set, we should consider ->ParentViewportId as primary source of truth.
static bool IsViewportAbove(ImGuiViewportP* potential_above, ImGuiViewportP* potential_below)
{
if (potential_above->LastFocusedStampCount > potential_below->LastFocusedStampCount || potential_above->ParentViewportId == potential_below->ID) // FIXME: Should follow the ParentViewportId list.
@@ -16362,8 +16363,9 @@ static bool ImGui::UpdateTryMergeWindowIntoHostViewport(ImGuiWindow* window, ImG
{
if (viewport_2 == viewport || viewport_2 == window->Viewport)
continue;
if (IsViewportAbove(viewport_2, viewport) && viewport_2->GetMainRect().Overlaps(window->Rect()))
return false;
if (viewport_2->GetMainRect().Overlaps(window->Rect()))
if (IsViewportAbove(viewport_2, viewport) && !IsViewportAbove(viewport_2, window->Viewport))
return false;
}
// Move to the existing viewport, Move child/hosted windows as well (FIXME-OPT: iterate child)