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ImDrawList: Automatically calling ChannelsMerge() if not done after a split.

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Ties fixing f422e78 in docking: iterating root windows was incorrect. Will be faster to lazily merge in RenderDimmedBackground() rather than iterate all.
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ocornut
2023-08-30 15:22:36 +02:00
parent f93d0befaf
commit 08b3a1a34a
2 changed files with 3 additions and 0 deletions
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imgui.cpp
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@ -4812,6 +4812,8 @@ static void AddWindowToDrawData(ImGuiWindow* window, int layer)
ImGuiContext& g = *GImGui;
ImGuiViewportP* viewport = g.Viewports[0];
g.IO.MetricsRenderWindows++;
if (window->DrawList->_Splitter._Count > 1)
window->DrawList->ChannelsMerge(); // Merge if user forgot to merge back. Also required in Docking branch for ImGuiWindowFlags_DockNodeHost windows.
ImGui::AddDrawListToDrawDataEx(&viewport->DrawDataP, viewport->DrawDataBuilder.Layers[layer], window->DrawList);
for (ImGuiWindow* child : window->DC.ChildWindows)
if (IsWindowActiveAndVisible(child)) // Clipped children may have been marked not active