Multi-Select: Box-Select: fixed an issue where items out of horizontal view would sometimes lead to incorrect merging of sequential selection requests. (#7994, #1861, #6518)

SetNextItemSelectionUserData() could use g.NextItemData.SelectionUserData if we could guarantee if would be valid when nesting multi-select blocks.
But it doesn't make much of a difference as whole ImGuiMultiSelectTempData fits in 2 cache lines.
This commit is contained in:
ocornut
2026-04-09 22:15:32 +02:00
parent b444694b3d
commit f08b33fd0c
3 changed files with 9 additions and 5 deletions

View File

@@ -8050,7 +8050,7 @@ ImGuiMultiSelectIO* ImGui::BeginMultiSelect(ImGuiMultiSelectFlags flags, int sel
storage->LastSelectionSize = 0;
}
ms->LoopRequestSetAll = request_select_all ? 1 : request_clear ? 0 : -1;
ms->LastSubmittedItem = ImGuiSelectionUserData_Invalid;
ms->PrevSubmittedItem = ImGuiSelectionUserData_Invalid;
if (g.DebugLogFlags & ImGuiDebugLogFlags_EventSelection)
DebugLogMultiSelectRequests("BeginMultiSelect", &ms->IO);
@@ -8153,6 +8153,8 @@ void ImGui::SetNextItemSelectionUserData(ImGuiSelectionUserData selection_user_d
g.NextItemData.ItemFlags |= ImGuiItemFlags_HasSelectionUserData | ImGuiItemFlags_IsMultiSelect;
if (ms->IO.RangeSrcItem == selection_user_data)
ms->RangeSrcPassedBy = true;
ms->PrevSubmittedItem = ms->CurrSubmittedItem; // Can't rely on previous g.NextItemData.SelectionUserData because NextItemData is not restored on nested multi-select.
ms->CurrSubmittedItem = selection_user_data;
}
else
{
@@ -8430,7 +8432,6 @@ void ImGui::MultiSelectItemFooter(ImGuiID id, bool* p_selected, bool* p_pressed)
}
if (storage->NavIdItem == item_data)
ms->NavIdPassedBy = true;
ms->LastSubmittedItem = item_data;
*p_selected = selected;
*p_pressed = pressed;
@@ -8449,7 +8450,7 @@ void ImGui::MultiSelectAddSetRange(ImGuiMultiSelectTempData* ms, bool selected,
if (ms->IO.Requests.Size > 0 && first_item == last_item && (ms->Flags & ImGuiMultiSelectFlags_NoRangeSelect) == 0)
{
ImGuiSelectionRequest* prev = &ms->IO.Requests.Data[ms->IO.Requests.Size - 1];
if (prev->Type == ImGuiSelectionRequestType_SetRange && prev->RangeLastItem == ms->LastSubmittedItem && prev->Selected == selected)
if (prev->Type == ImGuiSelectionRequestType_SetRange && prev->RangeLastItem == ms->PrevSubmittedItem && prev->Selected == selected)
{
prev->RangeLastItem = last_item;
return;