Method SeekCursorForItem

TheForceEngine/TFE_Ui/imGUI/imgui.cpp:2987–2994

This is already called while stepping. The ONLY reason you may want to call this is if you passed INT_MAX to ImGuiListClipper::Begin() because you couldn't step item count beforehand.

// This is already called while stepping.
// The ONLY reason you may want to call this is if you passed INT_MAX to ImGuiListClipper::Begin() because you couldn't step item count beforehand.
void ImGuiListClipper::SeekCursorForItem(int item_n)
{
    // - Perform the add and multiply with double to allow seeking through larger ranges.
    // - StartPosY starts from ItemsFrozen, by adding SeekOffsetY we generally cancel that out (SeekOffsetY == LossynessOffset - ItemsFrozen * ItemsHeight).
    // - The reason we store SeekOffsetY instead of inferring it, is because we want to allow user to perform Seek after the last step, where ImGuiListClipperData is already done.
    float pos_y = (float)((double)StartPosY + StartSeekOffsetY + (double)item_n * ItemsHeight);
    ImGuiListClipper_SeekCursorAndSetupPrevLine(pos_y, ItemsHeight);
}

static bool ImGuiListClipper_StepInternal(ImGuiListClipper* clipper)
{