Method GetShortcutRoutingData

src/imgui/imgui.cpp:9399–9433

}

ImGuiKeyRoutingData* ImGui::GetShortcutRoutingData(ImGuiKeyChord key_chord)
{
    // Majority of shortcuts will be Key + any number of Mods
    // We accept _Single_ mod with ImGuiKey_None.
    //  - Shortcut(ImGuiKey_S | ImGuiMod_Ctrl);                    // Legal
    //  - Shortcut(ImGuiKey_S | ImGuiMod_Ctrl | ImGuiMod_Shift);   // Legal
    //  - Shortcut(ImGuiMod_Ctrl);                                 // Legal
    //  - Shortcut(ImGuiMod_Ctrl | ImGuiMod_Shift);                // Not legal
    ImGuiContext& g = *GImGui;
    ImGuiKeyRoutingTable* rt = &g.KeysRoutingTable;
    ImGuiKeyRoutingData* routing_data;
    ImGuiKey key = (ImGuiKey)(key_chord & ~ImGuiMod_Mask_);
    ImGuiKey mods = (ImGuiKey)(key_chord & ImGuiMod_Mask_);
    if (key == ImGuiKey_None)
        key = ConvertSingleModFlagToKey(mods);
    IM_ASSERT(IsNamedKey(key));

    // Get (in the majority of case, the linked list will have one element so this should be 2 reads.
    // Subsequent elements will be contiguous in memory as list is sorted/rebuilt in NewFrame).
    for (ImGuiKeyRoutingIndex idx = rt->Index[key - ImGuiKey_NamedKey_BEGIN]; idx != -1; idx = routing_data->NextEntryIndex)
    {
        routing_data = &rt->Entries[idx];
        if (routing_data->Mods == mods)
            return routing_data;
    }

    // Add to linked-list
    ImGuiKeyRoutingIndex routing_data_idx = (ImGuiKeyRoutingIndex)rt->Entries.Size;
    rt->Entries.push_back(ImGuiKeyRoutingData());
    routing_data = &rt->Entries[routing_data_idx];
    routing_data->Mods = (ImU16)mods;
    routing_data->NextEntryIndex = rt->Index[key - ImGuiKey_NamedKey_BEGIN]; // Setup linked list
    rt->Index[key - ImGuiKey_NamedKey_BEGIN] = routing_data_idx;
    return routing_data;
}

// Current score encoding (lower is highest priority):
//  -   0: ImGuiInputFlags_RouteGlobal | ImGuiInputFlags_RouteOverActive