Method DockContextRemoveNode

extern/imgui/imgui.cpp:14751–14780

}

static void ImGui::DockContextRemoveNode(ImGuiContext* ctx, ImGuiDockNode* node, bool merge_sibling_into_parent_node)
{
    ImGuiContext& g = *ctx;
    ImGuiDockContext* dc  = &ctx->DockContext;

    IMGUI_DEBUG_LOG_DOCKING("[docking] DockContextRemoveNode 0x%08X\n", node->ID);
    IM_ASSERT(DockContextFindNodeByID(ctx, node->ID) == node);
    IM_ASSERT(node->ChildNodes[0] == NULL && node->ChildNodes[1] == NULL);
    IM_ASSERT(node->Windows.Size == 0);

    if (node->HostWindow)
        node->HostWindow->DockNodeAsHost = NULL;

    ImGuiDockNode* parent_node = node->ParentNode;
    const bool merge = (merge_sibling_into_parent_node && parent_node != NULL);
    if (merge)
    {
        IM_ASSERT(parent_node->ChildNodes[0] == node || parent_node->ChildNodes[1] == node);
        ImGuiDockNode* sibling_node = (parent_node->ChildNodes[0] == node ? parent_node->ChildNodes[1] : parent_node->ChildNodes[0]);
        DockNodeTreeMerge(&g, parent_node, sibling_node);
    }
    else
    {
        for (int n = 0; parent_node && n < IM_ARRAYSIZE(parent_node->ChildNodes); n++)
            if (parent_node->ChildNodes[n] == node)
                node->ParentNode->ChildNodes[n] = NULL;
        dc->Nodes.SetVoidPtr(node->ID, NULL);
        IM_DELETE(node);
    }
}

static int IMGUI_CDECL DockNodeComparerDepthMostFirst(const void* lhs, const void* rhs)
{