Method EndMultiSelect

imgui_tiny_app/imgui/imgui_widgets.cpp:8051–8128

Return updated ImGuiMultiSelectIO structure. Lifetime: don't hold on ImGuiMultiSelectIO* pointers over multiple frames or past any subsequent call to BeginMultiSelect() or EndMultiSelect().

// Return updated ImGuiMultiSelectIO structure.
// Lifetime: don't hold on ImGuiMultiSelectIO* pointers over multiple frames or past any subsequent call to BeginMultiSelect() or EndMultiSelect().
ImGuiMultiSelectIO* ImGui::EndMultiSelect()
{
    ImGuiContext& g = *GImGui;
    ImGuiMultiSelectTempData* ms = g.CurrentMultiSelect;
    ImGuiMultiSelectState* storage = ms->Storage;
    ImGuiWindow* window = g.CurrentWindow;
    IM_ASSERT_USER_ERROR(ms->FocusScopeId == g.CurrentFocusScopeId, "EndMultiSelect() FocusScope mismatch!");
    IM_ASSERT(g.CurrentMultiSelect != NULL && storage->Window == g.CurrentWindow);
    IM_ASSERT(g.MultiSelectTempDataStacked > 0 && &g.MultiSelectTempData[g.MultiSelectTempDataStacked - 1] == g.CurrentMultiSelect);

    ImRect scope_rect = CalcScopeRect(ms, window);
    if (ms->IsFocused)
    {
        // We currently don't allow user code to modify RangeSrcItem by writing to BeginIO's version, but that would be an easy change here.
        if (ms->IO.RangeSrcReset || (ms->RangeSrcPassedBy == false && ms->IO.RangeSrcItem != ImGuiSelectionUserData_Invalid)) // Can't read storage->RangeSrcItem here -> we want the state at beginning of the scope (see tests for easy failure)
        {
            IMGUI_DEBUG_LOG_SELECTION("[selection] EndMultiSelect: Reset RangeSrcItem.\n"); // Will set be to NavId.
            storage->RangeSrcItem = ImGuiSelectionUserData_Invalid;
        }
        if (ms->NavIdPassedBy == false && storage->NavIdItem != ImGuiSelectionUserData_Invalid)
        {
            IMGUI_DEBUG_LOG_SELECTION("[selection] EndMultiSelect: Reset NavIdItem.\n");
            storage->NavIdItem = ImGuiSelectionUserData_Invalid;
            storage->NavIdSelected = -1;
        }

        if ((ms->Flags & (ImGuiMultiSelectFlags_BoxSelect1d | ImGuiMultiSelectFlags_BoxSelect2d)) && GetBoxSelectState(ms->BoxSelectId))
            EndBoxSelect(scope_rect, ms->Flags);
    }

    if (ms->IsEndIO == false)
        ms->IO.Requests.resize(0);

    // Clear selection when clicking void?
    // We specifically test for IsMouseDragPastThreshold(0) == false to allow box-selection!
    // The InnerRect test is necessary for non-child/decorated windows.
    bool scope_hovered = IsWindowHovered() && window->InnerRect.Contains(g.IO.MousePos);
    if (scope_hovered && (ms->Flags & ImGuiMultiSelectFlags_ScopeRect))
        scope_hovered &= scope_rect.Contains(g.IO.MousePos);
    if (scope_hovered && g.HoveredId == 0 && g.ActiveId == 0)
    {
        if (ms->Flags & (ImGuiMultiSelectFlags_BoxSelect1d | ImGuiMultiSelectFlags_BoxSelect2d))
        {
            if (!g.BoxSelectState.IsActive && !g.BoxSelectState.IsStarting && g.IO.MouseClickedCount[0] == 1)
            {
                BoxSelectPreStartDrag(ms->BoxSelectId, ImGuiSelectionUserData_Invalid);
                FocusWindow(window, ImGuiFocusRequestFlags_UnlessBelowModal);
                SetHoveredID(ms->BoxSelectId);
                if (ms->Flags & ImGuiMultiSelectFlags_ScopeRect)
                    SetNavID(0, ImGuiNavLayer_Main, ms->FocusScopeId, ImRect(g.IO.MousePos, g.IO.MousePos)); // Automatically switch FocusScope for initial click from void to box-select.
            }
        }

        if (ms->Flags & ImGuiMultiSelectFlags_ClearOnClickVoid)
            if (IsMouseReleased(0) && IsMouseDragPastThreshold(0) == false && g.IO.KeyMods == ImGuiMod_None)
                MultiSelectAddSetAll(ms, false);
    }