RangeSelect/MultiSelect: (breaking) Added 'items_count' parameter to BeginMultiSelect(). Will enable extra features, and remove equivalent param from ImGuiSelectionBasicStorage::ApplyRequests(.
@ -179,7 +179,7 @@ struct ImGuiMultiSelectIO; // Structure to interact with a BeginMultiSe
structImGuiOnceUponAFrame;// Helper for running a block of code not more than once a frame
structImGuiPayload;// User data payload for drag and drop operations
structImGuiPlatformImeData;// Platform IME data for io.SetPlatformImeDataFn() function.
structImGuiSelectionBasicStorage;// Helper struct to store multi-selection state + apply multi-selection requests.
structImGuiSelectionBasicStorage;// Optional helper to store multi-selection state + apply multi-selection requests.
structImGuiSelectionRequest;// A selection request (stored in ImGuiMultiSelectIO)
structImGuiSizeCallbackData;// Callback data when using SetNextWindowSizeConstraints() (rare/advanced use)
structImGuiStorage;// Helper for key->value storage (container sorted by key)
@ -672,9 +672,10 @@ namespace ImGui
// Multi-selection system for Selectable() and TreeNode() functions.
// - This enables standard multi-selection/range-selection idioms (CTRL+Mouse/Keyboard, SHIFT+Mouse/Keyboard, etc.) in a way that also allow a clipper to be used.
// - ImGuiSelectionUserData is often used to store your item index.
// - ImGuiSelectionUserData is often used to store your item index within the current view (but may store something else).
// - Read comments near ImGuiMultiSelectIO for instructions/details and see 'Demo->Widgets->Selection State & Multi-Select' for demo.
IMGUI_APIboolIsItemToggledSelection();// Was the last item selection state toggled? Useful if you need the per-item information _before_ reaching EndMultiSelect(). We only returns toggle _event_ in order to handle clipping correctly.
@ -2736,6 +2737,7 @@ struct ImGuiMultiSelectIO
ImGuiSelectionUserDataNavIdItem;// ms:w, app:r / // (If using deletion) Last known SetNextItemSelectionUserData() value for NavId (if part of submitted items).
boolNavIdSelected;// ms:w, app:r / app:r // (If using deletion) Last known selection state for NavId (if part of submitted items).
boolRangeSrcReset;// app:w / ms:r // (If using deletion) Set before EndMultiSelect() to reset ResetSrcItem (e.g. if deleted selection).
intItemsCount;// ms:w, app:r / app:r // 'int items_count' parameter to BeginMultiSelect() is copied here for convenience, allowing simpler calls to your ApplyRequests handler. Not used internally.
// 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 pass 1, or use the ImGuiMultiSelectFlags_ClearOnEscape flag dynamically.
// Passing 'selection_size' and 'items_count' parameters is currently optional.
// - 'selection_size' is useful to disable some shortcut routing: e.g. ImGuiMultiSelectFlags_ClearOnEscape won't claim Escape key when selection_size 0,
// allowing a first press to clear selection THEN the second press to leave child window and return to parent.
// - 'items_count' is stored in ImGuiMultiSelectIO which makes it a convenient way to pass the information to your ApplyRequest() handler (but you may pass it differently).
// - If they are costly for you to compute (e.g. external intrusive selection without maintaining size), you may avoid them and pass -1.
// - If you can easily tell if your selection is empty or not, you may pass 0/1, or you may enable ImGuiMultiSelectFlags_ClearOnEscape flag dynamically.
// if (req.Type == ImGuiSelectionRequestType_SetAll) { Clear(); if (req.Selected) { for (int n = 0; n < items_count; n++) { AddItem(n); } }
// if (req.Type == ImGuiSelectionRequestType_SetRange) { for (int n = (int)ms_io->RangeFirstItem; n <= (int)ms_io->RangeLastItem; n++) { UpdateItem(n, ms_io->Selected); } }
ocornut
ago%!(EXTRA string=11 months)