MultiSelect: (breaking) renamed ImGuiSelectionBasicStorage::AdapterData to UserData.

imgui.h

@@ -2843,14 +2843,14 @@ struct ImGuiSelectionBasicStorage
     // Members
     ImGuiStorage    Storage;        // [Internal] Selection set. Think of this as similar to e.g. std::set<ImGuiID>
     int             Size;           // Number of selected items (== number of 1 in the Storage), maintained by this helper.
-    void*           AdapterData;    // Adapter to convert item index to item identifier     // e.g. selection.AdapterData = (void*)my_items;
     ImGuiID         (*AdapterIndexToStorageId)(ImGuiSelectionBasicStorage* self, int idx);  // e.g. selection.AdapterIndexToStorageId = [](ImGuiSelectionBasicStorage* self, int idx) { return ((MyItems**)self->AdapterData)[idx]->ID; };
+    void*           UserData;       // User data for use by adapter function                // e.g. selection.UserData = (void*)my_items;
 
     // Methods: apply selection requests coming from BeginMultiSelect() and EndMultiSelect() functions
     IMGUI_API void ApplyRequests(ImGuiMultiSelectIO* ms_io, int items_count);
 
     // Methods: selection storage
-    ImGuiSelectionBasicStorage()                { Clear(); AdapterData = NULL; AdapterIndexToStorageId = [](ImGuiSelectionBasicStorage*, int idx) { return (ImGuiID)idx; }; }
+    ImGuiSelectionBasicStorage()                { Clear(); UserData = NULL; AdapterIndexToStorageId = [](ImGuiSelectionBasicStorage*, int idx) { return (ImGuiID)idx; }; }
     void    Clear()                             { Storage.Data.resize(0); Size = 0; }
     void    Swap(ImGuiSelectionBasicStorage& r) { Storage.Data.swap(r.Storage.Data); }
     bool    Contains(ImGuiID id) const          { return Storage.GetInt(id, 0) != 0; }

imgui_demo.cpp

@@ -2872,8 +2872,8 @@ struct ExampleDualListBox
     void ApplySelectionRequests(ImGuiMultiSelectIO* ms_io, int side)
     {
         // In this example we store item id in selection (instead of item index)
-        Selections[side].AdapterData = Items[side].Data;
-        Selections[side].AdapterIndexToStorageId = [](ImGuiSelectionBasicStorage* self, int idx) { ImGuiID* items = (ImGuiID*)self->AdapterData; return items[idx]; };
+        Selections[side].UserData = Items[side].Data;
+        Selections[side].AdapterIndexToStorageId = [](ImGuiSelectionBasicStorage* self, int idx) { ImGuiID* items = (ImGuiID*)self->UserData; return items[idx]; };
         Selections[side].ApplyRequests(ms_io, Items[side].Size);
     }
     static int IMGUI_CDECL CompareItemsByValue(const void* lhs, const void* rhs)
@@ -3135,8 +3135,8 @@ static void ShowDemoWindowMultiSelect()
             // Use a custom selection.Adapter: store item identifier in Selection (instead of index)
             static ImVector<ImGuiID> items;
             static ExampleSelectionWithDeletion selection;
-            selection.AdapterData = (void*)&items;
-            selection.AdapterIndexToStorageId = [](ImGuiSelectionBasicStorage* self, int idx) { ImVector<ImGuiID>* p_items = (ImVector<ImGuiID>*)self->AdapterData; return (*p_items)[idx]; }; // Index -> ID
+            selection.UserData = (void*)&items;
+            selection.AdapterIndexToStorageId = [](ImGuiSelectionBasicStorage* self, int idx) { ImVector<ImGuiID>* p_items = (ImVector<ImGuiID>*)self->UserData; return (*p_items)[idx]; }; // Index -> ID
 
             ImGui::Text("Added features:");
             ImGui::BulletText("Dynamic list with Delete key support.");
@@ -9847,8 +9847,8 @@ struct ExampleAssetsBrowser
             ImGuiMultiSelectIO* ms_io = ImGui::BeginMultiSelect(ms_flags, Selection.Size);
 
             // Use custom selection adapter: store ID in selection (recommended)
-            Selection.AdapterData = this;
-            Selection.AdapterIndexToStorageId = [](ImGuiSelectionBasicStorage* self_, int idx) { ExampleAssetsBrowser* self = (ExampleAssetsBrowser*)self_->AdapterData; return self->Items[idx].ID; };
+            Selection.UserData = this;
+            Selection.AdapterIndexToStorageId = [](ImGuiSelectionBasicStorage* self_, int idx) { ExampleAssetsBrowser* self = (ExampleAssetsBrowser*)self_->UserData; return self->Items[idx].ID; };
             Selection.ApplyRequests(ms_io, Items.Size);
 
             const bool want_delete = (ImGui::Shortcut(ImGuiKey_Delete, ImGuiInputFlags_Repeat) && (Selection.Size > 0)) || RequestDelete;

imgui_widgets.cpp

@@ -7306,7 +7306,7 @@ static void DebugLogMultiSelectRequests(const char* function, const ImGuiMultiSe
 // Lifetime: don't hold on ImGuiMultiSelectIO* pointers over multiple frames or past any subsequent call to BeginMultiSelect() or EndMultiSelect().
 // Passing 'current_selection_size' is currently optional:
 // - it is useful for shortcut routing with ImGuiMultiSelectFlags_ClearOnEscape: so we can have Escape be used to clear selection THEN to exit child window.
-// - if it is costly for you to compute, but can easily tell if your selection is empty or not, you may alter the ImGuiMultiSelectFlags_ClearOnEscape flag based on that.
+// - if it is costly for you to compute, but can easily tell if your selection is empty or not, you may pass 1, or use the ImGuiMultiSelectFlags_ClearOnEscape flag dynamically.
 ImGuiMultiSelectIO* ImGui::BeginMultiSelect(ImGuiMultiSelectFlags flags, int current_selection_size)
 {
     ImGuiContext& g = *GImGui;
@@ -7347,6 +7347,7 @@ ImGuiMultiSelectIO* ImGui::BeginMultiSelect(ImGuiMultiSelectFlags flags, int cur
     storage->Window = window;
     ms->Storage = storage;
 
+    // Output to user
     ms->IO.RangeSrcItem = storage->RangeSrcItem;
     ms->IO.NavIdItem = storage->NavIdItem;
     ms->IO.NavIdSelected = (storage->NavIdSelected == 1) ? true : false;