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MultiSelect: provide RangeDirection to allow selection handler to handler backward shift+click.

pull/7804/head
ocornut 4 months ago
parent
3ac367ff41
commit
df664329cb
2 changed files with 8 additions and 7 deletions
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  1. 1
      imgui.h
  2. 14
      imgui_widgets.cpp

1
imgui.h
View File

@ -2811,6 +2811,7 @@ struct ImGuiSelectionRequest
//------------------------------------------// BeginMultiSelect / EndMultiSelect
ImGuiSelectionRequestType Type; // ms:w, app:r / ms:w, app:r // Request type. You'll most often receive 1 Clear + 1 SetRange with a single-item range.
bool Selected; // ms:w, app:r / ms:w, app:r // Parameter for SetAll/SetRange requests (true = select, false = unselect)
ImS8 RangeDirection; // / ms:w app:r // Parameter for SetRange request: +1 when RangeFirstItem comes before RangeLastItem, -1 otherwise. Useful if you want to preserve selection order on a backward Shift+Click.
ImGuiSelectionUserData RangeFirstItem; // / ms:w, app:r // Parameter for SetRange request (this is generally == RangeSrcItem when shift selecting from top to bottom).
ImGuiSelectionUserData RangeLastItem; // / ms:w, app:r // Parameter for SetRange request (this is generally == RangeSrcItem when shift selecting from bottom to top). Inclusive!
};

14
imgui_widgets.cpp
View File

@ -7294,7 +7294,7 @@ static void DebugLogMultiSelectRequests(const char* function, const ImGuiMultiSe
for (const ImGuiSelectionRequest& req : io->Requests)
{
if (req.Type == ImGuiSelectionRequestType_SetAll) IMGUI_DEBUG_LOG_SELECTION("[selection] %s: Request: SetAll %d (= %s)\n", function, req.Selected, req.Selected ? "SelectAll" : "Clear");
if (req.Type == ImGuiSelectionRequestType_SetRange) IMGUI_DEBUG_LOG_SELECTION("[selection] %s: Request: SetRange %" IM_PRId64 "..%" IM_PRId64 " (0x%" IM_PRIX64 "..0x%" IM_PRIX64 ") = %d\n", function, req.RangeFirstItem, req.RangeLastItem, req.RangeFirstItem, req.RangeLastItem, req.Selected);
if (req.Type == ImGuiSelectionRequestType_SetRange) IMGUI_DEBUG_LOG_SELECTION("[selection] %s: Request: SetRange %" IM_PRId64 "..%" IM_PRId64 " (0x%" IM_PRIX64 "..0x%" IM_PRIX64 ") = %d (dir %d)\n", function, req.RangeFirstItem, req.RangeLastItem, req.RangeFirstItem, req.RangeLastItem, req.Selected, req.RangeDirection);
}
}
@ -7401,7 +7401,7 @@ ImGuiMultiSelectIO* ImGui::BeginMultiSelect(ImGuiMultiSelectFlags flags, int sel
if (request_clear || request_select_all)
{
ImGuiSelectionRequest req = { ImGuiSelectionRequestType_SetAll, request_select_all, ImGuiSelectionUserData_Invalid, ImGuiSelectionUserData_Invalid };
ImGuiSelectionRequest req = { ImGuiSelectionRequestType_SetAll, request_select_all, 0, ImGuiSelectionUserData_Invalid, ImGuiSelectionUserData_Invalid };
if (!request_select_all)
storage->LastSelectionSize = 0;
ms->IO.Requests.push_back(req);
@ -7475,7 +7475,7 @@ ImGuiMultiSelectIO* ImGui::EndMultiSelect()
if (ms->Flags & ImGuiMultiSelectFlags_ClearOnClickVoid)
if (IsMouseReleased(0) && IsMouseDragPastThreshold(0) == false && g.IO.KeyMods == ImGuiMod_None)
{
ImGuiSelectionRequest req = { ImGuiSelectionRequestType_SetAll, false, ImGuiSelectionUserData_Invalid, ImGuiSelectionUserData_Invalid };
ImGuiSelectionRequest req = { ImGuiSelectionRequestType_SetAll, false, 0, ImGuiSelectionUserData_Invalid, ImGuiSelectionUserData_Invalid };
ms->IO.Requests.resize(0);
ms->IO.Requests.push_back(req);
}
@ -7665,7 +7665,7 @@ void ImGui::MultiSelectItemFooter(ImGuiID id, bool* p_selected, bool* p_pressed)
else
{
selected = !selected;
ImGuiSelectionRequest req = { ImGuiSelectionRequestType_SetRange, selected, item_data, item_data };
ImGuiSelectionRequest req = { ImGuiSelectionRequestType_SetRange, selected, +1, item_data, item_data };
ImGuiSelectionRequest* prev_req = (ms->IO.Requests.Size > 0) ? &ms->IO.Requests.Data[ms->IO.Requests.Size - 1] : NULL;
if (prev_req && prev_req->Type == ImGuiSelectionRequestType_SetRange && prev_req->RangeLastItem == ms->BoxSelectLastitem && prev_req->Selected == selected)
prev_req->RangeLastItem = item_data; // Merge span into same request
@ -7733,7 +7733,7 @@ void ImGui::MultiSelectItemFooter(ImGuiID id, bool* p_selected, bool* p_pressed)
request_clear = true; // With is_shift==false the RequestClear was done in BeginIO, not necessary to do again.
if (request_clear)
{
ImGuiSelectionRequest req = { ImGuiSelectionRequestType_SetAll, false, ImGuiSelectionUserData_Invalid, ImGuiSelectionUserData_Invalid };
ImGuiSelectionRequest req = { ImGuiSelectionRequestType_SetAll, false, 0, ImGuiSelectionUserData_Invalid, ImGuiSelectionUserData_Invalid };
ms->IO.Requests.resize(0);
ms->IO.Requests.push_back(req);
}
@ -7775,7 +7775,7 @@ void ImGui::MultiSelectItemFooter(ImGuiID id, bool* p_selected, bool* p_pressed)
range_direction = +1;
}
ImGuiSelectionUserData range_dst_item = item_data;
ImGuiSelectionRequest req = { ImGuiSelectionRequestType_SetRange, range_selected, (range_direction > 0) ? storage->RangeSrcItem : range_dst_item, (range_direction > 0) ? range_dst_item : storage->RangeSrcItem };
ImGuiSelectionRequest req = { ImGuiSelectionRequestType_SetRange, range_selected, (ImS8)range_direction, (range_direction > 0) ? storage->RangeSrcItem : range_dst_item, (range_direction > 0) ? range_dst_item : storage->RangeSrcItem };
ms->IO.Requests.push_back(req);
}
@ -7876,7 +7876,7 @@ static void ImGuiSelectionBasicStorage_BatchSetItemSelected(ImGuiSelectionBasicS
ImGuiStorage* storage = &selection->_Storage;
ImGuiStoragePair* it = ImLowerBound(storage->Data.Data, storage->Data.Data + size_before_amends, id);
const bool is_contained = (it != storage->Data.Data + size_before_amends) && (it->key == id);
if (selected == is_contained && it->val_i == 1)
if (selected == is_contained && it->val_i != 0)
return;
if (selected && !is_contained)
storage->Data.push_back(ImGuiStoragePair(id, 1)); // Push unsorted at end of vector, will be sorted in SelectionMultiAmendsFinish()

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