diff --git a/backends/imgui_impl_opengl3.cpp b/backends/imgui_impl_opengl3.cpp index 2b7f5602..c10932de 100644 --- a/backends/imgui_impl_opengl3.cpp +++ b/backends/imgui_impl_opengl3.cpp @@ -112,6 +112,10 @@ #pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast #pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness #endif +#if defined(__GNUC__) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wcast-function-type" // warning: cast between incompatible function types +#endif // GL includes #if defined(IMGUI_IMPL_OPENGL_ES2) @@ -924,6 +928,9 @@ static void ImGui_ImplOpenGL3_ShutdownPlatformInterface() ImGui::DestroyPlatformWindows(); } +#if defined(__GNUC__) +#pragma GCC diagnostic pop +#endif #if defined(__clang__) #pragma clang diagnostic pop #endif diff --git a/imgui.cpp b/imgui.cpp index 74615fd1..2952aa68 100644 --- a/imgui.cpp +++ b/imgui.cpp @@ -69,6 +69,7 @@ CODE // [SECTION] ImGuiListClipper // [SECTION] STYLING // [SECTION] RENDER HELPERS +// [SECTION] INITIALIZATION, SHUTDOWN // [SECTION] MAIN CODE (most of the code! lots of stuff, needs tidying up!) // [SECTION] INPUTS // [SECTION] ERROR CHECKING @@ -1028,11 +1029,14 @@ static void ErrorCheckEndFrameSanityChecks(); static void UpdateDebugToolItemPicker(); static void UpdateDebugToolStackQueries(); -// Misc -static void UpdateSettings(); +// Inputs static void UpdateKeyboardInputs(); static void UpdateMouseInputs(); static void UpdateMouseWheel(); +static void UpdateKeyRoutingTable(ImGuiKeyRoutingTable* rt); + +// Misc +static void UpdateSettings(); static bool UpdateWindowManualResize(ImGuiWindow* window, const ImVec2& size_auto_fit, int* border_held, int resize_grip_count, ImU32 resize_grip_col[4], const ImRect& visibility_rect); static void RenderWindowOuterBorders(ImGuiWindow* window); static void RenderWindowDecorations(ImGuiWindow* window, const ImRect& title_bar_rect, bool title_bar_is_highlight, bool handle_borders_and_resize_grips, int resize_grip_count, const ImU32 resize_grip_col[4], float resize_grip_draw_size); @@ -3462,6 +3466,230 @@ void ImGui::RenderMouseCursor(ImVec2 base_pos, float base_scale, ImGuiMouseCurso } } +//----------------------------------------------------------------------------- +// [SECTION] INITIALIZATION, SHUTDOWN +//----------------------------------------------------------------------------- + +// Internal state access - if you want to share Dear ImGui state between modules (e.g. DLL) or allocate it yourself +// Note that we still point to some static data and members (such as GFontAtlas), so the state instance you end up using will point to the static data within its module +ImGuiContext* ImGui::GetCurrentContext() +{ + return GImGui; +} + +void ImGui::SetCurrentContext(ImGuiContext* ctx) +{ +#ifdef IMGUI_SET_CURRENT_CONTEXT_FUNC + IMGUI_SET_CURRENT_CONTEXT_FUNC(ctx); // For custom thread-based hackery you may want to have control over this. +#else + GImGui = ctx; +#endif +} + +void ImGui::SetAllocatorFunctions(ImGuiMemAllocFunc alloc_func, ImGuiMemFreeFunc free_func, void* user_data) +{ + GImAllocatorAllocFunc = alloc_func; + GImAllocatorFreeFunc = free_func; + GImAllocatorUserData = user_data; +} + +// This is provided to facilitate copying allocators from one static/DLL boundary to another (e.g. retrieve default allocator of your executable address space) +void ImGui::GetAllocatorFunctions(ImGuiMemAllocFunc* p_alloc_func, ImGuiMemFreeFunc* p_free_func, void** p_user_data) +{ + *p_alloc_func = GImAllocatorAllocFunc; + *p_free_func = GImAllocatorFreeFunc; + *p_user_data = GImAllocatorUserData; +} + +ImGuiContext* ImGui::CreateContext(ImFontAtlas* shared_font_atlas) +{ + ImGuiContext* prev_ctx = GetCurrentContext(); + ImGuiContext* ctx = IM_NEW(ImGuiContext)(shared_font_atlas); + SetCurrentContext(ctx); + Initialize(); + if (prev_ctx != NULL) + SetCurrentContext(prev_ctx); // Restore previous context if any, else keep new one. + return ctx; +} + +void ImGui::DestroyContext(ImGuiContext* ctx) +{ + ImGuiContext* prev_ctx = GetCurrentContext(); + if (ctx == NULL) //-V1051 + ctx = prev_ctx; + SetCurrentContext(ctx); + Shutdown(); + SetCurrentContext((prev_ctx != ctx) ? prev_ctx : NULL); + IM_DELETE(ctx); +} + +// IMPORTANT: ###xxx suffixes must be same in ALL languages +static const ImGuiLocEntry GLocalizationEntriesEnUS[] = +{ + { ImGuiLocKey_TableSizeOne, "Size column to fit###SizeOne" }, + { ImGuiLocKey_TableSizeAllFit, "Size all columns to fit###SizeAll" }, + { ImGuiLocKey_TableSizeAllDefault, "Size all columns to default###SizeAll" }, + { ImGuiLocKey_TableResetOrder, "Reset order###ResetOrder" }, + { ImGuiLocKey_WindowingMainMenuBar, "(Main menu bar)" }, + { ImGuiLocKey_WindowingPopup, "(Popup)" }, + { ImGuiLocKey_WindowingUntitled, "(Untitled)" }, + { ImGuiLocKey_DockingHideTabBar, "Hide tab bar###HideTabBar" }, +}; + +void ImGui::Initialize() +{ + ImGuiContext& g = *GImGui; + IM_ASSERT(!g.Initialized && !g.SettingsLoaded); + + // Add .ini handle for ImGuiWindow and ImGuiTable types + { + ImGuiSettingsHandler ini_handler; + ini_handler.TypeName = "Window"; + ini_handler.TypeHash = ImHashStr("Window"); + ini_handler.ClearAllFn = WindowSettingsHandler_ClearAll; + ini_handler.ReadOpenFn = WindowSettingsHandler_ReadOpen; + ini_handler.ReadLineFn = WindowSettingsHandler_ReadLine; + ini_handler.ApplyAllFn = WindowSettingsHandler_ApplyAll; + ini_handler.WriteAllFn = WindowSettingsHandler_WriteAll; + AddSettingsHandler(&ini_handler); + } + TableSettingsAddSettingsHandler(); + + // Setup default localization table + LocalizeRegisterEntries(GLocalizationEntriesEnUS, IM_ARRAYSIZE(GLocalizationEntriesEnUS)); + + // Create default viewport + ImGuiViewportP* viewport = IM_NEW(ImGuiViewportP)(); + viewport->ID = IMGUI_VIEWPORT_DEFAULT_ID; + viewport->Idx = 0; + viewport->PlatformWindowCreated = true; + viewport->Flags = ImGuiViewportFlags_OwnedByApp; + g.Viewports.push_back(viewport); + g.TempBuffer.resize(1024 * 3 + 1, 0); + g.PlatformIO.Viewports.push_back(g.Viewports[0]); + +#ifdef IMGUI_HAS_DOCK + // Initialize Docking + DockContextInitialize(&g); +#endif + + g.Initialized = true; +} + +// This function is merely here to free heap allocations. +void ImGui::Shutdown() +{ + // The fonts atlas can be used prior to calling NewFrame(), so we clear it even if g.Initialized is FALSE (which would happen if we never called NewFrame) + ImGuiContext& g = *GImGui; + if (g.IO.Fonts && g.FontAtlasOwnedByContext) + { + g.IO.Fonts->Locked = false; + IM_DELETE(g.IO.Fonts); + } + g.IO.Fonts = NULL; + g.DrawListSharedData.TempBuffer.clear(); + + // Cleanup of other data are conditional on actually having initialized Dear ImGui. + if (!g.Initialized) + return; + + // Save settings (unless we haven't attempted to load them: CreateContext/DestroyContext without a call to NewFrame shouldn't save an empty file) + if (g.SettingsLoaded && g.IO.IniFilename != NULL) + SaveIniSettingsToDisk(g.IO.IniFilename); + + // Destroy platform windows + DestroyPlatformWindows(); + + // Shutdown extensions + DockContextShutdown(&g); + + CallContextHooks(&g, ImGuiContextHookType_Shutdown); + + // Clear everything else + g.Windows.clear_delete(); + g.WindowsFocusOrder.clear(); + g.WindowsTempSortBuffer.clear(); + g.CurrentWindow = NULL; + g.CurrentWindowStack.clear(); + g.WindowsById.Clear(); + g.NavWindow = NULL; + g.HoveredWindow = g.HoveredWindowUnderMovingWindow = NULL; + g.ActiveIdWindow = g.ActiveIdPreviousFrameWindow = NULL; + g.MovingWindow = NULL; + + g.KeysRoutingTable.Clear(); + + g.ColorStack.clear(); + g.StyleVarStack.clear(); + g.FontStack.clear(); + g.OpenPopupStack.clear(); + g.BeginPopupStack.clear(); + + g.CurrentViewport = g.MouseViewport = g.MouseLastHoveredViewport = NULL; + g.Viewports.clear_delete(); + + g.TabBars.Clear(); + g.CurrentTabBarStack.clear(); + g.ShrinkWidthBuffer.clear(); + + g.ClipperTempData.clear_destruct(); + + g.Tables.Clear(); + g.TablesTempData.clear_destruct(); + g.DrawChannelsTempMergeBuffer.clear(); + + g.ClipboardHandlerData.clear(); + g.MenusIdSubmittedThisFrame.clear(); + g.InputTextState.ClearFreeMemory(); + + g.SettingsWindows.clear(); + g.SettingsHandlers.clear(); + + if (g.LogFile) + { +#ifndef IMGUI_DISABLE_TTY_FUNCTIONS + if (g.LogFile != stdout) +#endif + ImFileClose(g.LogFile); + g.LogFile = NULL; + } + g.LogBuffer.clear(); + g.DebugLogBuf.clear(); + g.DebugLogIndex.clear(); + + g.Initialized = false; +} + +// No specific ordering/dependency support, will see as needed +ImGuiID ImGui::AddContextHook(ImGuiContext* ctx, const ImGuiContextHook* hook) +{ + ImGuiContext& g = *ctx; + IM_ASSERT(hook->Callback != NULL && hook->HookId == 0 && hook->Type != ImGuiContextHookType_PendingRemoval_); + g.Hooks.push_back(*hook); + g.Hooks.back().HookId = ++g.HookIdNext; + return g.HookIdNext; +} + +// Deferred removal, avoiding issue with changing vector while iterating it +void ImGui::RemoveContextHook(ImGuiContext* ctx, ImGuiID hook_id) +{ + ImGuiContext& g = *ctx; + IM_ASSERT(hook_id != 0); + for (int n = 0; n < g.Hooks.Size; n++) + if (g.Hooks[n].HookId == hook_id) + g.Hooks[n].Type = ImGuiContextHookType_PendingRemoval_; +} + +// Call context hooks (used by e.g. test engine) +// We assume a small number of hooks so all stored in same array +void ImGui::CallContextHooks(ImGuiContext* ctx, ImGuiContextHookType hook_type) +{ + ImGuiContext& g = *ctx; + for (int n = 0; n < g.Hooks.Size; n++) + if (g.Hooks[n].Type == hook_type) + g.Hooks[n].Callback(&g, &g.Hooks[n]); +} + //----------------------------------------------------------------------------- // [SECTION] MAIN CODE (most of the code! lots of stuff, needs tidying up!) @@ -3922,110 +4150,27 @@ const char* ImGui::GetVersion() return IMGUI_VERSION; } -// Internal state access - if you want to share Dear ImGui state between modules (e.g. DLL) or allocate it yourself -// Note that we still point to some static data and members (such as GFontAtlas), so the state instance you end up using will point to the static data within its module -ImGuiContext* ImGui::GetCurrentContext() +ImGuiIO& ImGui::GetIO() { - return GImGui; + IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() and ImGui::SetCurrentContext() ?"); + return GImGui->IO; } -void ImGui::SetCurrentContext(ImGuiContext* ctx) +ImGuiPlatformIO& ImGui::GetPlatformIO() { -#ifdef IMGUI_SET_CURRENT_CONTEXT_FUNC - IMGUI_SET_CURRENT_CONTEXT_FUNC(ctx); // For custom thread-based hackery you may want to have control over this. -#else - GImGui = ctx; -#endif + IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() or ImGui::SetCurrentContext()?"); + return GImGui->PlatformIO; } -void ImGui::SetAllocatorFunctions(ImGuiMemAllocFunc alloc_func, ImGuiMemFreeFunc free_func, void* user_data) +// Pass this to your backend rendering function! Valid after Render() and until the next call to NewFrame() +ImDrawData* ImGui::GetDrawData() { - GImAllocatorAllocFunc = alloc_func; - GImAllocatorFreeFunc = free_func; - GImAllocatorUserData = user_data; + ImGuiContext& g = *GImGui; + ImGuiViewportP* viewport = g.Viewports[0]; + return viewport->DrawDataP.Valid ? &viewport->DrawDataP : NULL; } -// This is provided to facilitate copying allocators from one static/DLL boundary to another (e.g. retrieve default allocator of your executable address space) -void ImGui::GetAllocatorFunctions(ImGuiMemAllocFunc* p_alloc_func, ImGuiMemFreeFunc* p_free_func, void** p_user_data) -{ - *p_alloc_func = GImAllocatorAllocFunc; - *p_free_func = GImAllocatorFreeFunc; - *p_user_data = GImAllocatorUserData; -} - -ImGuiContext* ImGui::CreateContext(ImFontAtlas* shared_font_atlas) -{ - ImGuiContext* prev_ctx = GetCurrentContext(); - ImGuiContext* ctx = IM_NEW(ImGuiContext)(shared_font_atlas); - SetCurrentContext(ctx); - Initialize(); - if (prev_ctx != NULL) - SetCurrentContext(prev_ctx); // Restore previous context if any, else keep new one. - return ctx; -} - -void ImGui::DestroyContext(ImGuiContext* ctx) -{ - ImGuiContext* prev_ctx = GetCurrentContext(); - if (ctx == NULL) //-V1051 - ctx = prev_ctx; - SetCurrentContext(ctx); - Shutdown(); - SetCurrentContext((prev_ctx != ctx) ? prev_ctx : NULL); - IM_DELETE(ctx); -} - -// No specific ordering/dependency support, will see as needed -ImGuiID ImGui::AddContextHook(ImGuiContext* ctx, const ImGuiContextHook* hook) -{ - ImGuiContext& g = *ctx; - IM_ASSERT(hook->Callback != NULL && hook->HookId == 0 && hook->Type != ImGuiContextHookType_PendingRemoval_); - g.Hooks.push_back(*hook); - g.Hooks.back().HookId = ++g.HookIdNext; - return g.HookIdNext; -} - -// Deferred removal, avoiding issue with changing vector while iterating it -void ImGui::RemoveContextHook(ImGuiContext* ctx, ImGuiID hook_id) -{ - ImGuiContext& g = *ctx; - IM_ASSERT(hook_id != 0); - for (int n = 0; n < g.Hooks.Size; n++) - if (g.Hooks[n].HookId == hook_id) - g.Hooks[n].Type = ImGuiContextHookType_PendingRemoval_; -} - -// Call context hooks (used by e.g. test engine) -// We assume a small number of hooks so all stored in same array -void ImGui::CallContextHooks(ImGuiContext* ctx, ImGuiContextHookType hook_type) -{ - ImGuiContext& g = *ctx; - for (int n = 0; n < g.Hooks.Size; n++) - if (g.Hooks[n].Type == hook_type) - g.Hooks[n].Callback(&g, &g.Hooks[n]); -} - -ImGuiIO& ImGui::GetIO() -{ - IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() and ImGui::SetCurrentContext() ?"); - return GImGui->IO; -} - -ImGuiPlatformIO& ImGui::GetPlatformIO() -{ - IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() or ImGui::SetCurrentContext()?"); - return GImGui->PlatformIO; -} - -// Pass this to your backend rendering function! Valid after Render() and until the next call to NewFrame() -ImDrawData* ImGui::GetDrawData() -{ - ImGuiContext& g = *GImGui; - ImGuiViewportP* viewport = g.Viewports[0]; - return viewport->DrawDataP.Valid ? &viewport->DrawDataP : NULL; -} - -double ImGui::GetTime() +double ImGui::GetTime() { return GImGui->Time; } @@ -4283,469 +4428,79 @@ static bool IsWindowActiveAndVisible(ImGuiWindow* window) return (window->Active) && (!window->Hidden); } -static void UpdateAliasKey(ImGuiKey key, bool v, float analog_value) -{ - IM_ASSERT(ImGui::IsAliasKey(key)); - ImGuiKeyData* key_data = ImGui::GetKeyData(key); - key_data->Down = v; - key_data->AnalogValue = analog_value; -} - -// Rewrite routing data buffers to strip old entries + sort by key to make queries not touch scattered data. -// Entries D,A,B,B,A,C,B --> A,A,B,B,B,C,D -// Index A:1 B:2 C:5 D:0 --> A:0 B:2 C:5 D:6 -// See 'Metrics->Key Owners & Shortcut Routing' to visualize the result of that operation. -static void UpdateKeyRoutingTable(ImGuiKeyRoutingTable* rt) +// The reason this is exposed in imgui_internal.h is: on touch-based system that don't have hovering, we want to dispatch inputs to the right target (imgui vs imgui+app) +void ImGui::UpdateHoveredWindowAndCaptureFlags() { ImGuiContext& g = *GImGui; - rt->EntriesNext.resize(0); - for (ImGuiKey key = ImGuiKey_NamedKey_BEGIN; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1)) + ImGuiIO& io = g.IO; + g.WindowsHoverPadding = ImMax(g.Style.TouchExtraPadding, ImVec2(WINDOWS_HOVER_PADDING, WINDOWS_HOVER_PADDING)); + + // Find the window hovered by mouse: + // - Child windows can extend beyond the limit of their parent so we need to derive HoveredRootWindow from HoveredWindow. + // - When moving a window we can skip the search, which also conveniently bypasses the fact that window->WindowRectClipped is lagging as this point of the frame. + // - We also support the moved window toggling the NoInputs flag after moving has started in order to be able to detect windows below it, which is useful for e.g. docking mechanisms. + bool clear_hovered_windows = false; + FindHoveredWindow(); + IM_ASSERT(g.HoveredWindow == NULL || g.HoveredWindow == g.MovingWindow || g.HoveredWindow->Viewport == g.MouseViewport); + + // Modal windows prevents mouse from hovering behind them. + ImGuiWindow* modal_window = GetTopMostPopupModal(); + if (modal_window && g.HoveredWindow && !IsWindowWithinBeginStackOf(g.HoveredWindow->RootWindow, modal_window)) // FIXME-MERGE: RootWindowDockTree ? + clear_hovered_windows = true; + + // Disabled mouse? + if (io.ConfigFlags & ImGuiConfigFlags_NoMouse) + clear_hovered_windows = true; + + // We track click ownership. When clicked outside of a window the click is owned by the application and + // won't report hovering nor request capture even while dragging over our windows afterward. + const bool has_open_popup = (g.OpenPopupStack.Size > 0); + const bool has_open_modal = (modal_window != NULL); + int mouse_earliest_down = -1; + bool mouse_any_down = false; + for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++) { - const int new_routing_start_idx = rt->EntriesNext.Size; - ImGuiKeyRoutingData* routing_entry; - for (int old_routing_idx = rt->Index[key - ImGuiKey_NamedKey_BEGIN]; old_routing_idx != -1; old_routing_idx = routing_entry->NextEntryIndex) + if (io.MouseClicked[i]) { - routing_entry = &rt->Entries[old_routing_idx]; - routing_entry->RoutingCurr = routing_entry->RoutingNext; // Update entry - routing_entry->RoutingNext = ImGuiKeyOwner_None; - routing_entry->RoutingNextScore = 255; - if (routing_entry->RoutingCurr == ImGuiKeyOwner_None) - continue; - rt->EntriesNext.push_back(*routing_entry); // Write alive ones into new buffer - - // Apply routing to owner if there's no owner already (RoutingCurr == None at this point) - if (routing_entry->Mods == g.IO.KeyMods) - { - ImGuiKeyOwnerData* owner_data = ImGui::GetKeyOwnerData(key); - if (owner_data->OwnerCurr == ImGuiKeyOwner_None) - owner_data->OwnerCurr = routing_entry->RoutingCurr; - } + io.MouseDownOwned[i] = (g.HoveredWindow != NULL) || has_open_popup; + io.MouseDownOwnedUnlessPopupClose[i] = (g.HoveredWindow != NULL) || has_open_modal; } - - // Rewrite linked-list - rt->Index[key - ImGuiKey_NamedKey_BEGIN] = (ImGuiKeyRoutingIndex)(new_routing_start_idx < rt->EntriesNext.Size ? new_routing_start_idx : -1); - for (int n = new_routing_start_idx; n < rt->EntriesNext.Size; n++) - rt->EntriesNext[n].NextEntryIndex = (ImGuiKeyRoutingIndex)((n + 1 < rt->EntriesNext.Size) ? n + 1 : -1); + mouse_any_down |= io.MouseDown[i]; + if (io.MouseDown[i]) + if (mouse_earliest_down == -1 || io.MouseClickedTime[i] < io.MouseClickedTime[mouse_earliest_down]) + mouse_earliest_down = i; } - rt->Entries.swap(rt->EntriesNext); // Swap new and old indexes -} + const bool mouse_avail = (mouse_earliest_down == -1) || io.MouseDownOwned[mouse_earliest_down]; + const bool mouse_avail_unless_popup_close = (mouse_earliest_down == -1) || io.MouseDownOwnedUnlessPopupClose[mouse_earliest_down]; -// [Internal] Do not use directly -static ImGuiKeyChord GetMergedModsFromKeys() -{ - ImGuiKeyChord mods = 0; - if (ImGui::IsKeyDown(ImGuiMod_Ctrl)) { mods |= ImGuiMod_Ctrl; } - if (ImGui::IsKeyDown(ImGuiMod_Shift)) { mods |= ImGuiMod_Shift; } - if (ImGui::IsKeyDown(ImGuiMod_Alt)) { mods |= ImGuiMod_Alt; } - if (ImGui::IsKeyDown(ImGuiMod_Super)) { mods |= ImGuiMod_Super; } - return mods; -} + // If mouse was first clicked outside of ImGui bounds we also cancel out hovering. + // FIXME: For patterns of drag and drop across OS windows, we may need to rework/remove this test (first committed 311c0ca9 on 2015/02) + const bool mouse_dragging_extern_payload = g.DragDropActive && (g.DragDropSourceFlags & ImGuiDragDropFlags_SourceExtern) != 0; + if (!mouse_avail && !mouse_dragging_extern_payload) + clear_hovered_windows = true; -static void ImGui::UpdateKeyboardInputs() -{ - ImGuiContext& g = *GImGui; - ImGuiIO& io = g.IO; + if (clear_hovered_windows) + g.HoveredWindow = g.HoveredWindowUnderMovingWindow = NULL; - // Import legacy keys or verify they are not used -#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO - if (io.BackendUsingLegacyKeyArrays == 0) + // Update io.WantCaptureMouse for the user application (true = dispatch mouse info to Dear ImGui only, false = dispatch mouse to Dear ImGui + underlying app) + // Update io.WantCaptureMouseAllowPopupClose (experimental) to give a chance for app to react to popup closure with a drag + if (g.WantCaptureMouseNextFrame != -1) { - // Backend used new io.AddKeyEvent() API: Good! Verify that old arrays are never written to externally. - for (int n = 0; n < ImGuiKey_LegacyNativeKey_END; n++) - IM_ASSERT((io.KeysDown[n] == false || IsKeyDown((ImGuiKey)n)) && "Backend needs to either only use io.AddKeyEvent(), either only fill legacy io.KeysDown[] + io.KeyMap[]. Not both!"); + io.WantCaptureMouse = io.WantCaptureMouseUnlessPopupClose = (g.WantCaptureMouseNextFrame != 0); } else { - if (g.FrameCount == 0) - for (int n = ImGuiKey_LegacyNativeKey_BEGIN; n < ImGuiKey_LegacyNativeKey_END; n++) - IM_ASSERT(g.IO.KeyMap[n] == -1 && "Backend is not allowed to write to io.KeyMap[0..511]!"); - - // Build reverse KeyMap (Named -> Legacy) - for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_NamedKey_END; n++) - if (io.KeyMap[n] != -1) - { - IM_ASSERT(IsLegacyKey((ImGuiKey)io.KeyMap[n])); - io.KeyMap[io.KeyMap[n]] = n; - } - - // Import legacy keys into new ones - for (int n = ImGuiKey_LegacyNativeKey_BEGIN; n < ImGuiKey_LegacyNativeKey_END; n++) - if (io.KeysDown[n] || io.BackendUsingLegacyKeyArrays == 1) - { - const ImGuiKey key = (ImGuiKey)(io.KeyMap[n] != -1 ? io.KeyMap[n] : n); - IM_ASSERT(io.KeyMap[n] == -1 || IsNamedKey(key)); - io.KeysData[key].Down = io.KeysDown[n]; - if (key != n) - io.KeysDown[key] = io.KeysDown[n]; // Allow legacy code using io.KeysDown[GetKeyIndex()] with old backends - io.BackendUsingLegacyKeyArrays = 1; - } - if (io.BackendUsingLegacyKeyArrays == 1) - { - GetKeyData(ImGuiMod_Ctrl)->Down = io.KeyCtrl; - GetKeyData(ImGuiMod_Shift)->Down = io.KeyShift; - GetKeyData(ImGuiMod_Alt)->Down = io.KeyAlt; - GetKeyData(ImGuiMod_Super)->Down = io.KeySuper; - } - } - -#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO - const bool nav_gamepad_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) != 0 && (io.BackendFlags & ImGuiBackendFlags_HasGamepad) != 0; - if (io.BackendUsingLegacyNavInputArray && nav_gamepad_active) - { - #define MAP_LEGACY_NAV_INPUT_TO_KEY1(_KEY, _NAV1) do { io.KeysData[_KEY].Down = (io.NavInputs[_NAV1] > 0.0f); io.KeysData[_KEY].AnalogValue = io.NavInputs[_NAV1]; } while (0) - #define MAP_LEGACY_NAV_INPUT_TO_KEY2(_KEY, _NAV1, _NAV2) do { io.KeysData[_KEY].Down = (io.NavInputs[_NAV1] > 0.0f) || (io.NavInputs[_NAV2] > 0.0f); io.KeysData[_KEY].AnalogValue = ImMax(io.NavInputs[_NAV1], io.NavInputs[_NAV2]); } while (0) - MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceDown, ImGuiNavInput_Activate); - MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceRight, ImGuiNavInput_Cancel); - MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceLeft, ImGuiNavInput_Menu); - MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceUp, ImGuiNavInput_Input); - MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadLeft, ImGuiNavInput_DpadLeft); - MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadRight, ImGuiNavInput_DpadRight); - MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadUp, ImGuiNavInput_DpadUp); - MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadDown, ImGuiNavInput_DpadDown); - MAP_LEGACY_NAV_INPUT_TO_KEY2(ImGuiKey_GamepadL1, ImGuiNavInput_FocusPrev, ImGuiNavInput_TweakSlow); - MAP_LEGACY_NAV_INPUT_TO_KEY2(ImGuiKey_GamepadR1, ImGuiNavInput_FocusNext, ImGuiNavInput_TweakFast); - MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickLeft, ImGuiNavInput_LStickLeft); - MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickRight, ImGuiNavInput_LStickRight); - MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickUp, ImGuiNavInput_LStickUp); - MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickDown, ImGuiNavInput_LStickDown); - #undef NAV_MAP_KEY + io.WantCaptureMouse = (mouse_avail && (g.HoveredWindow != NULL || mouse_any_down)) || has_open_popup; + io.WantCaptureMouseUnlessPopupClose = (mouse_avail_unless_popup_close && (g.HoveredWindow != NULL || mouse_any_down)) || has_open_modal; } -#endif -#endif - // Update aliases - for (int n = 0; n < ImGuiMouseButton_COUNT; n++) - UpdateAliasKey(MouseButtonToKey(n), io.MouseDown[n], io.MouseDown[n] ? 1.0f : 0.0f); - UpdateAliasKey(ImGuiKey_MouseWheelX, io.MouseWheelH != 0.0f, io.MouseWheelH); - UpdateAliasKey(ImGuiKey_MouseWheelY, io.MouseWheel != 0.0f, io.MouseWheel); - - // Synchronize io.KeyMods and io.KeyXXX values. - // - New backends (1.87+): send io.AddKeyEvent(ImGuiMod_XXX) -> -> (here) deriving io.KeyMods + io.KeyXXX from key array. - // - Legacy backends: set io.KeyXXX bools -> (above) set key array from io.KeyXXX -> (here) deriving io.KeyMods + io.KeyXXX from key array. - // So with legacy backends the 4 values will do a unnecessary back-and-forth but it makes the code simpler and future facing. - io.KeyMods = GetMergedModsFromKeys(); - io.KeyCtrl = (io.KeyMods & ImGuiMod_Ctrl) != 0; - io.KeyShift = (io.KeyMods & ImGuiMod_Shift) != 0; - io.KeyAlt = (io.KeyMods & ImGuiMod_Alt) != 0; - io.KeySuper = (io.KeyMods & ImGuiMod_Super) != 0; - - // Clear gamepad data if disabled - if ((io.BackendFlags & ImGuiBackendFlags_HasGamepad) == 0) - for (int i = ImGuiKey_Gamepad_BEGIN; i < ImGuiKey_Gamepad_END; i++) - { - io.KeysData[i - ImGuiKey_KeysData_OFFSET].Down = false; - io.KeysData[i - ImGuiKey_KeysData_OFFSET].AnalogValue = 0.0f; - } - - // Update keys - for (int i = 0; i < ImGuiKey_KeysData_SIZE; i++) - { - ImGuiKeyData* key_data = &io.KeysData[i]; - key_data->DownDurationPrev = key_data->DownDuration; - key_data->DownDuration = key_data->Down ? (key_data->DownDuration < 0.0f ? 0.0f : key_data->DownDuration + io.DeltaTime) : -1.0f; - } - - // Update keys/input owner (named keys only): one entry per key - for (ImGuiKey key = ImGuiKey_NamedKey_BEGIN; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1)) - { - ImGuiKeyData* key_data = &io.KeysData[key - ImGuiKey_KeysData_OFFSET]; - ImGuiKeyOwnerData* owner_data = &g.KeysOwnerData[key - ImGuiKey_NamedKey_BEGIN]; - owner_data->OwnerCurr = owner_data->OwnerNext; - if (!key_data->Down) // Important: ownership is released on the frame after a release. Ensure a 'MouseDown -> CloseWindow -> MouseUp' chain doesn't lead to someone else seeing the MouseUp. - owner_data->OwnerNext = ImGuiKeyOwner_None; - owner_data->LockThisFrame = owner_data->LockUntilRelease = owner_data->LockUntilRelease && key_data->Down; // Clear LockUntilRelease when key is not Down anymore - } - - UpdateKeyRoutingTable(&g.KeysRoutingTable); -} - -static void ImGui::UpdateMouseInputs() -{ - ImGuiContext& g = *GImGui; - ImGuiIO& io = g.IO; - - // Round mouse position to avoid spreading non-rounded position (e.g. UpdateManualResize doesn't support them well) - if (IsMousePosValid(&io.MousePos)) - io.MousePos = g.MouseLastValidPos = ImFloorSigned(io.MousePos); - - // If mouse just appeared or disappeared (usually denoted by -FLT_MAX components) we cancel out movement in MouseDelta - if (IsMousePosValid(&io.MousePos) && IsMousePosValid(&io.MousePosPrev)) - io.MouseDelta = io.MousePos - io.MousePosPrev; - else - io.MouseDelta = ImVec2(0.0f, 0.0f); - - // If mouse moved we re-enable mouse hovering in case it was disabled by gamepad/keyboard. In theory should use a >0.0f threshold but would need to reset in everywhere we set this to true. - if (io.MouseDelta.x != 0.0f || io.MouseDelta.y != 0.0f) - g.NavDisableMouseHover = false; - - io.MousePosPrev = io.MousePos; - for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++) - { - io.MouseClicked[i] = io.MouseDown[i] && io.MouseDownDuration[i] < 0.0f; - io.MouseClickedCount[i] = 0; // Will be filled below - io.MouseReleased[i] = !io.MouseDown[i] && io.MouseDownDuration[i] >= 0.0f; - io.MouseDownDurationPrev[i] = io.MouseDownDuration[i]; - io.MouseDownDuration[i] = io.MouseDown[i] ? (io.MouseDownDuration[i] < 0.0f ? 0.0f : io.MouseDownDuration[i] + io.DeltaTime) : -1.0f; - if (io.MouseClicked[i]) - { - bool is_repeated_click = false; - if ((float)(g.Time - io.MouseClickedTime[i]) < io.MouseDoubleClickTime) - { - ImVec2 delta_from_click_pos = IsMousePosValid(&io.MousePos) ? (io.MousePos - io.MouseClickedPos[i]) : ImVec2(0.0f, 0.0f); - if (ImLengthSqr(delta_from_click_pos) < io.MouseDoubleClickMaxDist * io.MouseDoubleClickMaxDist) - is_repeated_click = true; - } - if (is_repeated_click) - io.MouseClickedLastCount[i]++; - else - io.MouseClickedLastCount[i] = 1; - io.MouseClickedTime[i] = g.Time; - io.MouseClickedPos[i] = io.MousePos; - io.MouseClickedCount[i] = io.MouseClickedLastCount[i]; - io.MouseDragMaxDistanceAbs[i] = ImVec2(0.0f, 0.0f); - io.MouseDragMaxDistanceSqr[i] = 0.0f; - } - else if (io.MouseDown[i]) - { - // Maintain the maximum distance we reaching from the initial click position, which is used with dragging threshold - ImVec2 delta_from_click_pos = IsMousePosValid(&io.MousePos) ? (io.MousePos - io.MouseClickedPos[i]) : ImVec2(0.0f, 0.0f); - io.MouseDragMaxDistanceSqr[i] = ImMax(io.MouseDragMaxDistanceSqr[i], ImLengthSqr(delta_from_click_pos)); - io.MouseDragMaxDistanceAbs[i].x = ImMax(io.MouseDragMaxDistanceAbs[i].x, delta_from_click_pos.x < 0.0f ? -delta_from_click_pos.x : delta_from_click_pos.x); - io.MouseDragMaxDistanceAbs[i].y = ImMax(io.MouseDragMaxDistanceAbs[i].y, delta_from_click_pos.y < 0.0f ? -delta_from_click_pos.y : delta_from_click_pos.y); - } - - // We provide io.MouseDoubleClicked[] as a legacy service - io.MouseDoubleClicked[i] = (io.MouseClickedCount[i] == 2); - - // Clicking any mouse button reactivate mouse hovering which may have been deactivated by gamepad/keyboard navigation - if (io.MouseClicked[i]) - g.NavDisableMouseHover = false; - } -} - -static void LockWheelingWindow(ImGuiWindow* window, float wheel_amount) -{ - ImGuiContext& g = *GImGui; - if (window) - g.WheelingWindowReleaseTimer = ImMin(g.WheelingWindowReleaseTimer + ImAbs(wheel_amount) * WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER, WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER); - else - g.WheelingWindowReleaseTimer = 0.0f; - if (g.WheelingWindow == window) - return; - IMGUI_DEBUG_LOG_IO("LockWheelingWindow() \"%s\"\n", window ? window->Name : "NULL"); - g.WheelingWindow = window; - g.WheelingWindowRefMousePos = g.IO.MousePos; - if (window == NULL) - { - g.WheelingWindowStartFrame = -1; - g.WheelingAxisAvg = ImVec2(0.0f, 0.0f); - } -} - -static ImGuiWindow* FindBestWheelingWindow(const ImVec2& wheel) -{ - // For each axis, find window in the hierarchy that may want to use scrolling - ImGuiContext& g = *GImGui; - ImGuiWindow* windows[2] = { NULL, NULL }; - for (int axis = 0; axis < 2; axis++) - if (wheel[axis] != 0.0f) - for (ImGuiWindow* window = windows[axis] = g.HoveredWindow; window->Flags & ImGuiWindowFlags_ChildWindow; window = windows[axis] = window->ParentWindow) - { - // Bubble up into parent window if: - // - a child window doesn't allow any scrolling. - // - a child window has the ImGuiWindowFlags_NoScrollWithMouse flag. - //// - a child window doesn't need scrolling because it is already at the edge for the direction we are going in (FIXME-WIP) - const bool has_scrolling = (window->ScrollMax[axis] != 0.0f); - const bool inputs_disabled = (window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs); - //const bool scrolling_past_limits = (wheel_v < 0.0f) ? (window->Scroll[axis] <= 0.0f) : (window->Scroll[axis] >= window->ScrollMax[axis]); - if (has_scrolling && !inputs_disabled) // && !scrolling_past_limits) - break; // select this window - } - if (windows[0] == NULL && windows[1] == NULL) - return NULL; - - // If there's only one window or only one axis then there's no ambiguity - if (windows[0] == windows[1] || windows[0] == NULL || windows[1] == NULL) - return windows[1] ? windows[1] : windows[0]; - - // If candidate are different windows we need to decide which one to prioritize - // - First frame: only find a winner if one axis is zero. - // - Subsequent frames: only find a winner when one is more than the other. - if (g.WheelingWindowStartFrame == -1) - g.WheelingWindowStartFrame = g.FrameCount; - if ((g.WheelingWindowStartFrame == g.FrameCount && wheel.x != 0.0f && wheel.y != 0.0f) || (g.WheelingAxisAvg.x == g.WheelingAxisAvg.y)) - { - g.WheelingWindowWheelRemainder = wheel; - return NULL; - } - return (g.WheelingAxisAvg.x > g.WheelingAxisAvg.y) ? windows[0] : windows[1]; -} - -void ImGui::UpdateMouseWheel() -{ - ImGuiContext& g = *GImGui; - - // Reset the locked window if we move the mouse or after the timer elapses. - // FIXME: Ideally we could refactor to have one timer for "changing window w/ same axis" and a shorter timer for "changing window or axis w/ other axis" (#3795) - if (g.WheelingWindow != NULL) - { - g.WheelingWindowReleaseTimer -= g.IO.DeltaTime; - if (IsMousePosValid() && ImLengthSqr(g.IO.MousePos - g.WheelingWindowRefMousePos) > g.IO.MouseDragThreshold * g.IO.MouseDragThreshold) - g.WheelingWindowReleaseTimer = 0.0f; - if (g.WheelingWindowReleaseTimer <= 0.0f) - LockWheelingWindow(NULL, 0.0f); - } - - ImVec2 wheel; - wheel.x = TestKeyOwner(ImGuiKey_MouseWheelX, ImGuiKeyOwner_None) ? g.IO.MouseWheelH : 0.0f; - wheel.y = TestKeyOwner(ImGuiKey_MouseWheelY, ImGuiKeyOwner_None) ? g.IO.MouseWheel : 0.0f; - - //IMGUI_DEBUG_LOG("MouseWheel X:%.3f Y:%.3f\n", wheel_x, wheel_y); - ImGuiWindow* mouse_window = g.WheelingWindow ? g.WheelingWindow : g.HoveredWindow; - if (!mouse_window || mouse_window->Collapsed) - return; - - // Zoom / Scale window - // FIXME-OBSOLETE: This is an old feature, it still works but pretty much nobody is using it and may be best redesigned. - if (wheel.y != 0.0f && g.IO.KeyCtrl && g.IO.FontAllowUserScaling) - { - LockWheelingWindow(mouse_window, wheel.y); - ImGuiWindow* window = mouse_window; - const float new_font_scale = ImClamp(window->FontWindowScale + g.IO.MouseWheel * 0.10f, 0.50f, 2.50f); - const float scale = new_font_scale / window->FontWindowScale; - window->FontWindowScale = new_font_scale; - if (window == window->RootWindow) - { - const ImVec2 offset = window->Size * (1.0f - scale) * (g.IO.MousePos - window->Pos) / window->Size; - SetWindowPos(window, window->Pos + offset, 0); - window->Size = ImFloor(window->Size * scale); - window->SizeFull = ImFloor(window->SizeFull * scale); - } - return; - } - if (g.IO.KeyCtrl) - return; - - // Mouse wheel scrolling - // As a standard behavior holding SHIFT while using Vertical Mouse Wheel triggers Horizontal scroll instead - // (we avoid doing it on OSX as it the OS input layer handles this already) - const bool swap_axis = g.IO.KeyShift && !g.IO.ConfigMacOSXBehaviors; - if (swap_axis) - { - wheel.x = wheel.y; - wheel.y = 0.0f; - } - - // Maintain a rough average of moving magnitude on both axises - // FIXME: should by based on wall clock time rather than frame-counter - g.WheelingAxisAvg.x = ImExponentialMovingAverage(g.WheelingAxisAvg.x, ImAbs(wheel.x), 30); - g.WheelingAxisAvg.y = ImExponentialMovingAverage(g.WheelingAxisAvg.y, ImAbs(wheel.y), 30); - - // In the rare situation where FindBestWheelingWindow() had to defer first frame of wheeling due to ambiguous main axis, reinject it now. - wheel += g.WheelingWindowWheelRemainder; - g.WheelingWindowWheelRemainder = ImVec2(0.0f, 0.0f); - if (wheel.x == 0.0f && wheel.y == 0.0f) - return; - - // Mouse wheel scrolling: find target and apply - // - don't renew lock if axis doesn't apply on the window. - // - select a main axis when both axises are being moved. - if (ImGuiWindow* window = (g.WheelingWindow ? g.WheelingWindow : FindBestWheelingWindow(wheel))) - if (!(window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs)) - { - bool do_scroll[2] = { wheel.x != 0.0f && window->ScrollMax.x != 0.0f, wheel.y != 0.0f && window->ScrollMax.y != 0.0f }; - if (do_scroll[ImGuiAxis_X] && do_scroll[ImGuiAxis_Y]) - do_scroll[(g.WheelingAxisAvg.x > g.WheelingAxisAvg.y) ? ImGuiAxis_Y : ImGuiAxis_X] = false; - if (do_scroll[ImGuiAxis_X]) - { - LockWheelingWindow(window, wheel.x); - float max_step = window->InnerRect.GetWidth() * 0.67f; - float scroll_step = ImFloor(ImMin(2 * window->CalcFontSize(), max_step)); - SetScrollX(window, window->Scroll.x - wheel.x * scroll_step); - } - if (do_scroll[ImGuiAxis_Y]) - { - LockWheelingWindow(window, wheel.y); - float max_step = window->InnerRect.GetHeight() * 0.67f; - float scroll_step = ImFloor(ImMin(5 * window->CalcFontSize(), max_step)); - SetScrollY(window, window->Scroll.y - wheel.y * scroll_step); - } - } -} - -// The reason this is exposed in imgui_internal.h is: on touch-based system that don't have hovering, we want to dispatch inputs to the right target (imgui vs imgui+app) -void ImGui::UpdateHoveredWindowAndCaptureFlags() -{ - ImGuiContext& g = *GImGui; - ImGuiIO& io = g.IO; - g.WindowsHoverPadding = ImMax(g.Style.TouchExtraPadding, ImVec2(WINDOWS_HOVER_PADDING, WINDOWS_HOVER_PADDING)); - - // Find the window hovered by mouse: - // - Child windows can extend beyond the limit of their parent so we need to derive HoveredRootWindow from HoveredWindow. - // - When moving a window we can skip the search, which also conveniently bypasses the fact that window->WindowRectClipped is lagging as this point of the frame. - // - We also support the moved window toggling the NoInputs flag after moving has started in order to be able to detect windows below it, which is useful for e.g. docking mechanisms. - bool clear_hovered_windows = false; - FindHoveredWindow(); - IM_ASSERT(g.HoveredWindow == NULL || g.HoveredWindow == g.MovingWindow || g.HoveredWindow->Viewport == g.MouseViewport); - - // Modal windows prevents mouse from hovering behind them. - ImGuiWindow* modal_window = GetTopMostPopupModal(); - if (modal_window && g.HoveredWindow && !IsWindowWithinBeginStackOf(g.HoveredWindow->RootWindow, modal_window)) // FIXME-MERGE: RootWindowDockTree ? - clear_hovered_windows = true; - - // Disabled mouse? - if (io.ConfigFlags & ImGuiConfigFlags_NoMouse) - clear_hovered_windows = true; - - // We track click ownership. When clicked outside of a window the click is owned by the application and - // won't report hovering nor request capture even while dragging over our windows afterward. - const bool has_open_popup = (g.OpenPopupStack.Size > 0); - const bool has_open_modal = (modal_window != NULL); - int mouse_earliest_down = -1; - bool mouse_any_down = false; - for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++) - { - if (io.MouseClicked[i]) - { - io.MouseDownOwned[i] = (g.HoveredWindow != NULL) || has_open_popup; - io.MouseDownOwnedUnlessPopupClose[i] = (g.HoveredWindow != NULL) || has_open_modal; - } - mouse_any_down |= io.MouseDown[i]; - if (io.MouseDown[i]) - if (mouse_earliest_down == -1 || io.MouseClickedTime[i] < io.MouseClickedTime[mouse_earliest_down]) - mouse_earliest_down = i; - } - const bool mouse_avail = (mouse_earliest_down == -1) || io.MouseDownOwned[mouse_earliest_down]; - const bool mouse_avail_unless_popup_close = (mouse_earliest_down == -1) || io.MouseDownOwnedUnlessPopupClose[mouse_earliest_down]; - - // If mouse was first clicked outside of ImGui bounds we also cancel out hovering. - // FIXME: For patterns of drag and drop across OS windows, we may need to rework/remove this test (first committed 311c0ca9 on 2015/02) - const bool mouse_dragging_extern_payload = g.DragDropActive && (g.DragDropSourceFlags & ImGuiDragDropFlags_SourceExtern) != 0; - if (!mouse_avail && !mouse_dragging_extern_payload) - clear_hovered_windows = true; - - if (clear_hovered_windows) - g.HoveredWindow = g.HoveredWindowUnderMovingWindow = NULL; - - // Update io.WantCaptureMouse for the user application (true = dispatch mouse info to Dear ImGui only, false = dispatch mouse to Dear ImGui + underlying app) - // Update io.WantCaptureMouseAllowPopupClose (experimental) to give a chance for app to react to popup closure with a drag - if (g.WantCaptureMouseNextFrame != -1) - { - io.WantCaptureMouse = io.WantCaptureMouseUnlessPopupClose = (g.WantCaptureMouseNextFrame != 0); - } - else - { - io.WantCaptureMouse = (mouse_avail && (g.HoveredWindow != NULL || mouse_any_down)) || has_open_popup; - io.WantCaptureMouseUnlessPopupClose = (mouse_avail_unless_popup_close && (g.HoveredWindow != NULL || mouse_any_down)) || has_open_modal; - } - - // Update io.WantCaptureKeyboard for the user application (true = dispatch keyboard info to Dear ImGui only, false = dispatch keyboard info to Dear ImGui + underlying app) - if (g.WantCaptureKeyboardNextFrame != -1) - io.WantCaptureKeyboard = (g.WantCaptureKeyboardNextFrame != 0); - else - io.WantCaptureKeyboard = (g.ActiveId != 0) || (modal_window != NULL); - if (io.NavActive && (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) && !(io.ConfigFlags & ImGuiConfigFlags_NavNoCaptureKeyboard)) - io.WantCaptureKeyboard = true; + // Update io.WantCaptureKeyboard for the user application (true = dispatch keyboard info to Dear ImGui only, false = dispatch keyboard info to Dear ImGui + underlying app) + if (g.WantCaptureKeyboardNextFrame != -1) + io.WantCaptureKeyboard = (g.WantCaptureKeyboardNextFrame != 0); + else + io.WantCaptureKeyboard = (g.ActiveId != 0) || (modal_window != NULL); + if (io.NavActive && (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) && !(io.ConfigFlags & ImGuiConfigFlags_NavNoCaptureKeyboard)) + io.WantCaptureKeyboard = true; // Update io.WantTextInput flag, this is to allow systems without a keyboard (e.g. mobile, hand-held) to show a software keyboard if possible io.WantTextInput = (g.WantTextInputNextFrame != -1) ? (g.WantTextInputNextFrame != 0) : false; @@ -5015,143 +4770,6 @@ void ImGui::NewFrame() CallContextHooks(&g, ImGuiContextHookType_NewFramePost); } -// IMPORTANT: ###xxx suffixes must be same in ALL languages -static const ImGuiLocEntry GLocalizationEntriesEnUS[] = -{ - { ImGuiLocKey_TableSizeOne, "Size column to fit###SizeOne" }, - { ImGuiLocKey_TableSizeAllFit, "Size all columns to fit###SizeAll" }, - { ImGuiLocKey_TableSizeAllDefault, "Size all columns to default###SizeAll" }, - { ImGuiLocKey_TableResetOrder, "Reset order###ResetOrder" }, - { ImGuiLocKey_WindowingMainMenuBar, "(Main menu bar)" }, - { ImGuiLocKey_WindowingPopup, "(Popup)" }, - { ImGuiLocKey_WindowingUntitled, "(Untitled)" }, - { ImGuiLocKey_DockingHideTabBar, "Hide tab bar###HideTabBar" }, -}; - -void ImGui::Initialize() -{ - ImGuiContext& g = *GImGui; - IM_ASSERT(!g.Initialized && !g.SettingsLoaded); - - // Add .ini handle for ImGuiWindow and ImGuiTable types - { - ImGuiSettingsHandler ini_handler; - ini_handler.TypeName = "Window"; - ini_handler.TypeHash = ImHashStr("Window"); - ini_handler.ClearAllFn = WindowSettingsHandler_ClearAll; - ini_handler.ReadOpenFn = WindowSettingsHandler_ReadOpen; - ini_handler.ReadLineFn = WindowSettingsHandler_ReadLine; - ini_handler.ApplyAllFn = WindowSettingsHandler_ApplyAll; - ini_handler.WriteAllFn = WindowSettingsHandler_WriteAll; - AddSettingsHandler(&ini_handler); - } - TableSettingsAddSettingsHandler(); - - // Setup default localization table - LocalizeRegisterEntries(GLocalizationEntriesEnUS, IM_ARRAYSIZE(GLocalizationEntriesEnUS)); - - // Create default viewport - ImGuiViewportP* viewport = IM_NEW(ImGuiViewportP)(); - viewport->ID = IMGUI_VIEWPORT_DEFAULT_ID; - viewport->Idx = 0; - viewport->PlatformWindowCreated = true; - viewport->Flags = ImGuiViewportFlags_OwnedByApp; - g.Viewports.push_back(viewport); - g.TempBuffer.resize(1024 * 3 + 1, 0); - g.PlatformIO.Viewports.push_back(g.Viewports[0]); - -#ifdef IMGUI_HAS_DOCK - // Initialize Docking - DockContextInitialize(&g); -#endif - - g.Initialized = true; -} - -// This function is merely here to free heap allocations. -void ImGui::Shutdown() -{ - // The fonts atlas can be used prior to calling NewFrame(), so we clear it even if g.Initialized is FALSE (which would happen if we never called NewFrame) - ImGuiContext& g = *GImGui; - if (g.IO.Fonts && g.FontAtlasOwnedByContext) - { - g.IO.Fonts->Locked = false; - IM_DELETE(g.IO.Fonts); - } - g.IO.Fonts = NULL; - g.DrawListSharedData.TempBuffer.clear(); - - // Cleanup of other data are conditional on actually having initialized Dear ImGui. - if (!g.Initialized) - return; - - // Save settings (unless we haven't attempted to load them: CreateContext/DestroyContext without a call to NewFrame shouldn't save an empty file) - if (g.SettingsLoaded && g.IO.IniFilename != NULL) - SaveIniSettingsToDisk(g.IO.IniFilename); - - // Destroy platform windows - DestroyPlatformWindows(); - - // Shutdown extensions - DockContextShutdown(&g); - - CallContextHooks(&g, ImGuiContextHookType_Shutdown); - - // Clear everything else - g.Windows.clear_delete(); - g.WindowsFocusOrder.clear(); - g.WindowsTempSortBuffer.clear(); - g.CurrentWindow = NULL; - g.CurrentWindowStack.clear(); - g.WindowsById.Clear(); - g.NavWindow = NULL; - g.HoveredWindow = g.HoveredWindowUnderMovingWindow = NULL; - g.ActiveIdWindow = g.ActiveIdPreviousFrameWindow = NULL; - g.MovingWindow = NULL; - - g.KeysRoutingTable.Clear(); - - g.ColorStack.clear(); - g.StyleVarStack.clear(); - g.FontStack.clear(); - g.OpenPopupStack.clear(); - g.BeginPopupStack.clear(); - - g.CurrentViewport = g.MouseViewport = g.MouseLastHoveredViewport = NULL; - g.Viewports.clear_delete(); - - g.TabBars.Clear(); - g.CurrentTabBarStack.clear(); - g.ShrinkWidthBuffer.clear(); - - g.ClipperTempData.clear_destruct(); - - g.Tables.Clear(); - g.TablesTempData.clear_destruct(); - g.DrawChannelsTempMergeBuffer.clear(); - - g.ClipboardHandlerData.clear(); - g.MenusIdSubmittedThisFrame.clear(); - g.InputTextState.ClearFreeMemory(); - - g.SettingsWindows.clear(); - g.SettingsHandlers.clear(); - - if (g.LogFile) - { -#ifndef IMGUI_DISABLE_TTY_FUNCTIONS - if (g.LogFile != stdout) -#endif - ImFileClose(g.LogFile); - g.LogFile = NULL; - } - g.LogBuffer.clear(); - g.DebugLogBuf.clear(); - g.DebugLogIndex.clear(); - - g.Initialized = false; -} - // FIXME: Add a more explicit sort order in the window structure. static int IMGUI_CDECL ChildWindowComparer(const void* lhs, const void* rhs) { @@ -6374,9 +5992,9 @@ static bool ImGui::UpdateWindowManualResize(ImGuiWindow* window, const ImVec2& s { ImVec2 nav_resize_dir; if (g.NavInputSource == ImGuiInputSource_Keyboard && g.IO.KeyShift) - nav_resize_dir = GetKeyVector2d(ImGuiKey_LeftArrow, ImGuiKey_RightArrow, ImGuiKey_UpArrow, ImGuiKey_DownArrow); + nav_resize_dir = GetKeyMagnitude2d(ImGuiKey_LeftArrow, ImGuiKey_RightArrow, ImGuiKey_UpArrow, ImGuiKey_DownArrow); if (g.NavInputSource == ImGuiInputSource_Gamepad) - nav_resize_dir = GetKeyVector2d(ImGuiKey_GamepadDpadLeft, ImGuiKey_GamepadDpadRight, ImGuiKey_GamepadDpadUp, ImGuiKey_GamepadDpadDown); + nav_resize_dir = GetKeyMagnitude2d(ImGuiKey_GamepadDpadLeft, ImGuiKey_GamepadDpadRight, ImGuiKey_GamepadDpadUp, ImGuiKey_GamepadDpadDown); if (nav_resize_dir.x != 0.0f || nav_resize_dir.y != 0.0f) { const float NAV_RESIZE_SPEED = 600.0f; @@ -8522,30 +8140,68 @@ bool ImGui::IsRectVisible(const ImVec2& rect_min, const ImVec2& rect_max) //----------------------------------------------------------------------------- -// [SECTION] INPUTS +// [SECTION] INPUTS +//----------------------------------------------------------------------------- +// - GetKeyData() [Internal] +// - GetKeyIndex() [Internal] +// - GetKeyName() +// - GetKeyChordName() [Internal] +// - CalcTypematicRepeatAmount() [Internal] +// - GetTypematicRepeatRate() [Internal] +// - GetKeyPressedAmount() [Internal] +// - GetKeyMagnitude2d() [Internal] +//----------------------------------------------------------------------------- +// - UpdateKeyRoutingTable() [Internal] +// - GetRoutingIdFromOwnerId() [Internal] +// - GetShortcutRoutingData() [Internal] +// - CalcRoutingScore() [Internal] +// - SetShortcutRouting() [Internal] +// - TestShortcutRouting() [Internal] +//----------------------------------------------------------------------------- +// - IsKeyDown() +// - IsKeyPressed() +// - IsKeyReleased() +//----------------------------------------------------------------------------- +// - IsMouseDown() +// - IsMouseClicked() +// - IsMouseReleased() +// - IsMouseDoubleClicked() +// - GetMouseClickedCount() +// - IsMouseHoveringRect() [Internal] +// - IsMouseDragPastThreshold() [Internal] +// - IsMouseDragging() +// - GetMousePos() +// - GetMousePosOnOpeningCurrentPopup() +// - IsMousePosValid() +// - IsAnyMouseDown() +// - GetMouseDragDelta() +// - ResetMouseDragDelta() +// - GetMouseCursor() +// - SetMouseCursor() +//----------------------------------------------------------------------------- +// - UpdateAliasKey() +// - GetMergedModsFromKeys() +// - UpdateKeyboardInputs() +// - UpdateMouseInputs() +//----------------------------------------------------------------------------- +// - LockWheelingWindow [Internal] +// - FindBestWheelingWindow [Internal] +// - UpdateMouseWheel() [Internal] +//----------------------------------------------------------------------------- +// - SetNextFrameWantCaptureKeyboard() +// - SetNextFrameWantCaptureMouse() +//----------------------------------------------------------------------------- +// - GetInputSourceName() [Internal] +// - DebugPrintInputEvent() [Internal] +// - UpdateInputEvents() [Internal] +//----------------------------------------------------------------------------- +// - GetKeyOwner() [Internal] +// - TestKeyOwner() [Internal] +// - SetKeyOwner() [Internal] +// - SetItemKeyOwner() [Internal] +// - Shortcut() [Internal] //----------------------------------------------------------------------------- -// Test if mouse cursor is hovering given rectangle -// NB- Rectangle is clipped by our current clip setting -// NB- Expand the rectangle to be generous on imprecise inputs systems (g.Style.TouchExtraPadding) -bool ImGui::IsMouseHoveringRect(const ImVec2& r_min, const ImVec2& r_max, bool clip) -{ - ImGuiContext& g = *GImGui; - - // Clip - ImRect rect_clipped(r_min, r_max); - if (clip) - rect_clipped.ClipWith(g.CurrentWindow->ClipRect); - - // Expand for touch input - const ImRect rect_for_touch(rect_clipped.Min - g.Style.TouchExtraPadding, rect_clipped.Max + g.Style.TouchExtraPadding); - if (!rect_for_touch.Contains(g.IO.MousePos)) - return false; - if (!g.MouseViewport->GetMainRect().Overlaps(rect_clipped)) - return false; - return true; -} - ImGuiKeyData* ImGui::GetKeyData(ImGuiKey key) { ImGuiContext& g = *GImGui; @@ -8683,13 +8339,52 @@ int ImGui::GetKeyPressedAmount(ImGuiKey key, float repeat_delay, float repeat_ra } // Return 2D vector representing the combination of four cardinal direction, with analog value support (for e.g. ImGuiKey_GamepadLStick* values). -ImVec2 ImGui::GetKeyVector2d(ImGuiKey key_left, ImGuiKey key_right, ImGuiKey key_up, ImGuiKey key_down) +ImVec2 ImGui::GetKeyMagnitude2d(ImGuiKey key_left, ImGuiKey key_right, ImGuiKey key_up, ImGuiKey key_down) { return ImVec2( GetKeyData(key_right)->AnalogValue - GetKeyData(key_left)->AnalogValue, GetKeyData(key_down)->AnalogValue - GetKeyData(key_up)->AnalogValue); } +// Rewrite routing data buffers to strip old entries + sort by key to make queries not touch scattered data. +// Entries D,A,B,B,A,C,B --> A,A,B,B,B,C,D +// Index A:1 B:2 C:5 D:0 --> A:0 B:2 C:5 D:6 +// See 'Metrics->Key Owners & Shortcut Routing' to visualize the result of that operation. +static void ImGui::UpdateKeyRoutingTable(ImGuiKeyRoutingTable* rt) +{ + ImGuiContext& g = *GImGui; + rt->EntriesNext.resize(0); + for (ImGuiKey key = ImGuiKey_NamedKey_BEGIN; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1)) + { + const int new_routing_start_idx = rt->EntriesNext.Size; + ImGuiKeyRoutingData* routing_entry; + for (int old_routing_idx = rt->Index[key - ImGuiKey_NamedKey_BEGIN]; old_routing_idx != -1; old_routing_idx = routing_entry->NextEntryIndex) + { + routing_entry = &rt->Entries[old_routing_idx]; + routing_entry->RoutingCurr = routing_entry->RoutingNext; // Update entry + routing_entry->RoutingNext = ImGuiKeyOwner_None; + routing_entry->RoutingNextScore = 255; + if (routing_entry->RoutingCurr == ImGuiKeyOwner_None) + continue; + rt->EntriesNext.push_back(*routing_entry); // Write alive ones into new buffer + + // Apply routing to owner if there's no owner already (RoutingCurr == None at this point) + if (routing_entry->Mods == g.IO.KeyMods) + { + ImGuiKeyOwnerData* owner_data = ImGui::GetKeyOwnerData(key); + if (owner_data->OwnerCurr == ImGuiKeyOwner_None) + owner_data->OwnerCurr = routing_entry->RoutingCurr; + } + } + + // Rewrite linked-list + rt->Index[key - ImGuiKey_NamedKey_BEGIN] = (ImGuiKeyRoutingIndex)(new_routing_start_idx < rt->EntriesNext.Size ? new_routing_start_idx : -1); + for (int n = new_routing_start_idx; n < rt->EntriesNext.Size; n++) + rt->EntriesNext[n].NextEntryIndex = (ImGuiKeyRoutingIndex)((n + 1 < rt->EntriesNext.Size) ? n + 1 : -1); + } + rt->Entries.swap(rt->EntriesNext); // Swap new and old indexes +} + // owner_id may be None/Any, but routing_id needs to be always be set, so we default to GetCurrentFocusScope(). static inline ImGuiID GetRoutingIdFromOwnerId(ImGuiID owner_id) { @@ -8835,227 +8530,599 @@ bool ImGui::TestShortcutRouting(ImGuiKeyChord key_chord, ImGuiID owner_id) // Consider transitioning from 'IsKeyDown(MY_ENGINE_KEY_A)' (<1.87) to IsKeyDown(ImGuiKey_A) (>= 1.87) bool ImGui::IsKeyDown(ImGuiKey key) { - return IsKeyDown(key, ImGuiKeyOwner_Any); + return IsKeyDown(key, ImGuiKeyOwner_Any); +} + +bool ImGui::IsKeyDown(ImGuiKey key, ImGuiID owner_id) +{ + const ImGuiKeyData* key_data = GetKeyData(key); + if (!key_data->Down) + return false; + if (!TestKeyOwner(key, owner_id)) + return false; + return true; +} + +bool ImGui::IsKeyPressed(ImGuiKey key, bool repeat) +{ + return IsKeyPressed(key, ImGuiKeyOwner_Any, repeat ? ImGuiInputFlags_Repeat : ImGuiInputFlags_None); +} + +// Important: unless legacy IsKeyPressed(ImGuiKey, bool repeat=true) which DEFAULT to repeat, this requires EXPLICIT repeat. +bool ImGui::IsKeyPressed(ImGuiKey key, ImGuiID owner_id, ImGuiInputFlags flags) +{ + const ImGuiKeyData* key_data = GetKeyData(key); + if (!key_data->Down) // In theory this should already be encoded as (DownDuration < 0.0f), but testing this facilitates eating mechanism (until we finish work on key ownership) + return false; + const float t = key_data->DownDuration; + if (t < 0.0f) + return false; + IM_ASSERT((flags & ~ImGuiInputFlags_SupportedByIsKeyPressed) == 0); // Passing flags not supported by this function! + + bool pressed = (t == 0.0f); + if (!pressed && ((flags & ImGuiInputFlags_Repeat) != 0)) + { + float repeat_delay, repeat_rate; + GetTypematicRepeatRate(flags, &repeat_delay, &repeat_rate); + pressed = (t > repeat_delay) && GetKeyPressedAmount(key, repeat_delay, repeat_rate) > 0; + } + if (!pressed) + return false; + if (!TestKeyOwner(key, owner_id)) + return false; + return true; +} + +bool ImGui::IsKeyReleased(ImGuiKey key) +{ + return IsKeyReleased(key, ImGuiKeyOwner_Any); +} + +bool ImGui::IsKeyReleased(ImGuiKey key, ImGuiID owner_id) +{ + const ImGuiKeyData* key_data = GetKeyData(key); + if (key_data->DownDurationPrev < 0.0f || key_data->Down) + return false; + if (!TestKeyOwner(key, owner_id)) + return false; + return true; +} + +bool ImGui::IsMouseDown(ImGuiMouseButton button) +{ + ImGuiContext& g = *GImGui; + IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); + return g.IO.MouseDown[button] && TestKeyOwner(MouseButtonToKey(button), ImGuiKeyOwner_Any); // should be same as IsKeyDown(MouseButtonToKey(button), ImGuiKeyOwner_Any), but this allows legacy code hijacking the io.Mousedown[] array. +} + +bool ImGui::IsMouseDown(ImGuiMouseButton button, ImGuiID owner_id) +{ + ImGuiContext& g = *GImGui; + IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); + return g.IO.MouseDown[button] && TestKeyOwner(MouseButtonToKey(button), owner_id); // Should be same as IsKeyDown(MouseButtonToKey(button), owner_id), but this allows legacy code hijacking the io.Mousedown[] array. +} + +bool ImGui::IsMouseClicked(ImGuiMouseButton button, bool repeat) +{ + return IsMouseClicked(button, ImGuiKeyOwner_Any, repeat ? ImGuiInputFlags_Repeat : ImGuiInputFlags_None); +} + +bool ImGui::IsMouseClicked(ImGuiMouseButton button, ImGuiID owner_id, ImGuiInputFlags flags) +{ + ImGuiContext& g = *GImGui; + IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); + if (!g.IO.MouseDown[button]) // In theory this should already be encoded as (DownDuration < 0.0f), but testing this facilitates eating mechanism (until we finish work on key ownership) + return false; + const float t = g.IO.MouseDownDuration[button]; + if (t < 0.0f) + return false; + IM_ASSERT((flags & ~ImGuiInputFlags_SupportedByIsKeyPressed) == 0); // Passing flags not supported by this function! + + const bool repeat = (flags & ImGuiInputFlags_Repeat) != 0; + const bool pressed = (t == 0.0f) || (repeat && t > g.IO.KeyRepeatDelay && CalcTypematicRepeatAmount(t - g.IO.DeltaTime, t, g.IO.KeyRepeatDelay, g.IO.KeyRepeatRate) > 0); + if (!pressed) + return false; + + if (!TestKeyOwner(MouseButtonToKey(button), owner_id)) + return false; + + return true; +} + +bool ImGui::IsMouseReleased(ImGuiMouseButton button) +{ + ImGuiContext& g = *GImGui; + IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); + return g.IO.MouseReleased[button] && TestKeyOwner(MouseButtonToKey(button), ImGuiKeyOwner_Any); // Should be same as IsKeyReleased(MouseButtonToKey(button), ImGuiKeyOwner_Any) +} + +bool ImGui::IsMouseReleased(ImGuiMouseButton button, ImGuiID owner_id) +{ + ImGuiContext& g = *GImGui; + IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); + return g.IO.MouseReleased[button] && TestKeyOwner(MouseButtonToKey(button), owner_id); // Should be same as IsKeyReleased(MouseButtonToKey(button), owner_id) +} + +bool ImGui::IsMouseDoubleClicked(ImGuiMouseButton button) +{ + ImGuiContext& g = *GImGui; + IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); + return g.IO.MouseClickedCount[button] == 2 && TestKeyOwner(MouseButtonToKey(button), ImGuiKeyOwner_Any); +} + +int ImGui::GetMouseClickedCount(ImGuiMouseButton button) +{ + ImGuiContext& g = *GImGui; + IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); + return g.IO.MouseClickedCount[button]; +} + +// Test if mouse cursor is hovering given rectangle +// NB- Rectangle is clipped by our current clip setting +// NB- Expand the rectangle to be generous on imprecise inputs systems (g.Style.TouchExtraPadding) +bool ImGui::IsMouseHoveringRect(const ImVec2& r_min, const ImVec2& r_max, bool clip) +{ + ImGuiContext& g = *GImGui; + + // Clip + ImRect rect_clipped(r_min, r_max); + if (clip) + rect_clipped.ClipWith(g.CurrentWindow->ClipRect); + + // Expand for touch input + const ImRect rect_for_touch(rect_clipped.Min - g.Style.TouchExtraPadding, rect_clipped.Max + g.Style.TouchExtraPadding); + if (!rect_for_touch.Contains(g.IO.MousePos)) + return false; + if (!g.MouseViewport->GetMainRect().Overlaps(rect_clipped)) + return false; + return true; +} + +// Return if a mouse click/drag went past the given threshold. Valid to call during the MouseReleased frame. +// [Internal] This doesn't test if the button is pressed +bool ImGui::IsMouseDragPastThreshold(ImGuiMouseButton button, float lock_threshold) +{ + ImGuiContext& g = *GImGui; + IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); + if (lock_threshold < 0.0f) + lock_threshold = g.IO.MouseDragThreshold; + return g.IO.MouseDragMaxDistanceSqr[button] >= lock_threshold * lock_threshold; +} + +bool ImGui::IsMouseDragging(ImGuiMouseButton button, float lock_threshold) +{ + ImGuiContext& g = *GImGui; + IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); + if (!g.IO.MouseDown[button]) + return false; + return IsMouseDragPastThreshold(button, lock_threshold); +} + +ImVec2 ImGui::GetMousePos() +{ + ImGuiContext& g = *GImGui; + return g.IO.MousePos; +} + +// NB: prefer to call right after BeginPopup(). At the time Selectable/MenuItem is activated, the popup is already closed! +ImVec2 ImGui::GetMousePosOnOpeningCurrentPopup() +{ + ImGuiContext& g = *GImGui; + if (g.BeginPopupStack.Size > 0) + return g.OpenPopupStack[g.BeginPopupStack.Size - 1].OpenMousePos; + return g.IO.MousePos; +} + +// We typically use ImVec2(-FLT_MAX,-FLT_MAX) to denote an invalid mouse position. +bool ImGui::IsMousePosValid(const ImVec2* mouse_pos) +{ + // The assert is only to silence a false-positive in XCode Static Analysis. + // Because GImGui is not dereferenced in every code path, the static analyzer assume that it may be NULL (which it doesn't for other functions). + IM_ASSERT(GImGui != NULL); + const float MOUSE_INVALID = -256000.0f; + ImVec2 p = mouse_pos ? *mouse_pos : GImGui->IO.MousePos; + return p.x >= MOUSE_INVALID && p.y >= MOUSE_INVALID; +} + +// [WILL OBSOLETE] This was designed for backends, but prefer having backend maintain a mask of held mouse buttons, because upcoming input queue system will make this invalid. +bool ImGui::IsAnyMouseDown() +{ + ImGuiContext& g = *GImGui; + for (int n = 0; n < IM_ARRAYSIZE(g.IO.MouseDown); n++) + if (g.IO.MouseDown[n]) + return true; + return false; } -bool ImGui::IsKeyDown(ImGuiKey key, ImGuiID owner_id) +// Return the delta from the initial clicking position while the mouse button is clicked or was just released. +// This is locked and return 0.0f until the mouse moves past a distance threshold at least once. +// NB: This is only valid if IsMousePosValid(). backends in theory should always keep mouse position valid when dragging even outside the client window. +ImVec2 ImGui::GetMouseDragDelta(ImGuiMouseButton button, float lock_threshold) { - const ImGuiKeyData* key_data = GetKeyData(key); - if (!key_data->Down) - return false; - if (!TestKeyOwner(key, owner_id)) - return false; - return true; + ImGuiContext& g = *GImGui; + IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); + if (lock_threshold < 0.0f) + lock_threshold = g.IO.MouseDragThreshold; + if (g.IO.MouseDown[button] || g.IO.MouseReleased[button]) + if (g.IO.MouseDragMaxDistanceSqr[button] >= lock_threshold * lock_threshold) + if (IsMousePosValid(&g.IO.MousePos) && IsMousePosValid(&g.IO.MouseClickedPos[button])) + return g.IO.MousePos - g.IO.MouseClickedPos[button]; + return ImVec2(0.0f, 0.0f); } -bool ImGui::IsKeyPressed(ImGuiKey key, bool repeat) +void ImGui::ResetMouseDragDelta(ImGuiMouseButton button) { - return IsKeyPressed(key, ImGuiKeyOwner_Any, repeat ? ImGuiInputFlags_Repeat : ImGuiInputFlags_None); + ImGuiContext& g = *GImGui; + IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); + // NB: We don't need to reset g.IO.MouseDragMaxDistanceSqr + g.IO.MouseClickedPos[button] = g.IO.MousePos; } -// Important: unless legacy IsKeyPressed(ImGuiKey, bool repeat=true) which DEFAULT to repeat, this requires EXPLICIT repeat. -bool ImGui::IsKeyPressed(ImGuiKey key, ImGuiID owner_id, ImGuiInputFlags flags) +// Get desired mouse cursor shape. +// Important: this is meant to be used by a platform backend, it is reset in ImGui::NewFrame(), +// updated during the frame, and locked in EndFrame()/Render(). +// If you use software rendering by setting io.MouseDrawCursor then Dear ImGui will render those for you +ImGuiMouseCursor ImGui::GetMouseCursor() { - const ImGuiKeyData* key_data = GetKeyData(key); - if (!key_data->Down) // In theory this should already be encoded as (DownDuration < 0.0f), but testing this facilitates eating mechanism (until we finish work on key ownership) - return false; - const float t = key_data->DownDuration; - if (t < 0.0f) - return false; - IM_ASSERT((flags & ~ImGuiInputFlags_SupportedByIsKeyPressed) == 0); // Passing flags not supported by this function! - - bool pressed = (t == 0.0f); - if (!pressed && ((flags & ImGuiInputFlags_Repeat) != 0)) - { - float repeat_delay, repeat_rate; - GetTypematicRepeatRate(flags, &repeat_delay, &repeat_rate); - pressed = (t > repeat_delay) && GetKeyPressedAmount(key, repeat_delay, repeat_rate) > 0; - } - if (!pressed) - return false; - if (!TestKeyOwner(key, owner_id)) - return false; - return true; + ImGuiContext& g = *GImGui; + return g.MouseCursor; } -bool ImGui::IsKeyReleased(ImGuiKey key) +void ImGui::SetMouseCursor(ImGuiMouseCursor cursor_type) { - return IsKeyReleased(key, ImGuiKeyOwner_Any); + ImGuiContext& g = *GImGui; + g.MouseCursor = cursor_type; } -bool ImGui::IsKeyReleased(ImGuiKey key, ImGuiID owner_id) +static void UpdateAliasKey(ImGuiKey key, bool v, float analog_value) { - const ImGuiKeyData* key_data = GetKeyData(key); - if (key_data->DownDurationPrev < 0.0f || key_data->Down) - return false; - if (!TestKeyOwner(key, owner_id)) - return false; - return true; + IM_ASSERT(ImGui::IsAliasKey(key)); + ImGuiKeyData* key_data = ImGui::GetKeyData(key); + key_data->Down = v; + key_data->AnalogValue = analog_value; } -bool ImGui::IsMouseDown(ImGuiMouseButton button) +// [Internal] Do not use directly +static ImGuiKeyChord GetMergedModsFromKeys() { - ImGuiContext& g = *GImGui; - IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); - return g.IO.MouseDown[button] && TestKeyOwner(MouseButtonToKey(button), ImGuiKeyOwner_Any); // should be same as IsKeyDown(MouseButtonToKey(button), ImGuiKeyOwner_Any), but this allows legacy code hijacking the io.Mousedown[] array. + ImGuiKeyChord mods = 0; + if (ImGui::IsKeyDown(ImGuiMod_Ctrl)) { mods |= ImGuiMod_Ctrl; } + if (ImGui::IsKeyDown(ImGuiMod_Shift)) { mods |= ImGuiMod_Shift; } + if (ImGui::IsKeyDown(ImGuiMod_Alt)) { mods |= ImGuiMod_Alt; } + if (ImGui::IsKeyDown(ImGuiMod_Super)) { mods |= ImGuiMod_Super; } + return mods; } -bool ImGui::IsMouseDown(ImGuiMouseButton button, ImGuiID owner_id) +static void ImGui::UpdateKeyboardInputs() { ImGuiContext& g = *GImGui; - IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); - return g.IO.MouseDown[button] && TestKeyOwner(MouseButtonToKey(button), owner_id); // Should be same as IsKeyDown(MouseButtonToKey(button), owner_id), but this allows legacy code hijacking the io.Mousedown[] array. -} + ImGuiIO& io = g.IO; -bool ImGui::IsMouseClicked(ImGuiMouseButton button, bool repeat) -{ - return IsMouseClicked(button, ImGuiKeyOwner_Any, repeat ? ImGuiInputFlags_Repeat : ImGuiInputFlags_None); + // Import legacy keys or verify they are not used +#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO + if (io.BackendUsingLegacyKeyArrays == 0) + { + // Backend used new io.AddKeyEvent() API: Good! Verify that old arrays are never written to externally. + for (int n = 0; n < ImGuiKey_LegacyNativeKey_END; n++) + IM_ASSERT((io.KeysDown[n] == false || IsKeyDown((ImGuiKey)n)) && "Backend needs to either only use io.AddKeyEvent(), either only fill legacy io.KeysDown[] + io.KeyMap[]. Not both!"); + } + else + { + if (g.FrameCount == 0) + for (int n = ImGuiKey_LegacyNativeKey_BEGIN; n < ImGuiKey_LegacyNativeKey_END; n++) + IM_ASSERT(g.IO.KeyMap[n] == -1 && "Backend is not allowed to write to io.KeyMap[0..511]!"); + + // Build reverse KeyMap (Named -> Legacy) + for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_NamedKey_END; n++) + if (io.KeyMap[n] != -1) + { + IM_ASSERT(IsLegacyKey((ImGuiKey)io.KeyMap[n])); + io.KeyMap[io.KeyMap[n]] = n; + } + + // Import legacy keys into new ones + for (int n = ImGuiKey_LegacyNativeKey_BEGIN; n < ImGuiKey_LegacyNativeKey_END; n++) + if (io.KeysDown[n] || io.BackendUsingLegacyKeyArrays == 1) + { + const ImGuiKey key = (ImGuiKey)(io.KeyMap[n] != -1 ? io.KeyMap[n] : n); + IM_ASSERT(io.KeyMap[n] == -1 || IsNamedKey(key)); + io.KeysData[key].Down = io.KeysDown[n]; + if (key != n) + io.KeysDown[key] = io.KeysDown[n]; // Allow legacy code using io.KeysDown[GetKeyIndex()] with old backends + io.BackendUsingLegacyKeyArrays = 1; + } + if (io.BackendUsingLegacyKeyArrays == 1) + { + GetKeyData(ImGuiMod_Ctrl)->Down = io.KeyCtrl; + GetKeyData(ImGuiMod_Shift)->Down = io.KeyShift; + GetKeyData(ImGuiMod_Alt)->Down = io.KeyAlt; + GetKeyData(ImGuiMod_Super)->Down = io.KeySuper; + } + } + +#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO + const bool nav_gamepad_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) != 0 && (io.BackendFlags & ImGuiBackendFlags_HasGamepad) != 0; + if (io.BackendUsingLegacyNavInputArray && nav_gamepad_active) + { + #define MAP_LEGACY_NAV_INPUT_TO_KEY1(_KEY, _NAV1) do { io.KeysData[_KEY].Down = (io.NavInputs[_NAV1] > 0.0f); io.KeysData[_KEY].AnalogValue = io.NavInputs[_NAV1]; } while (0) + #define MAP_LEGACY_NAV_INPUT_TO_KEY2(_KEY, _NAV1, _NAV2) do { io.KeysData[_KEY].Down = (io.NavInputs[_NAV1] > 0.0f) || (io.NavInputs[_NAV2] > 0.0f); io.KeysData[_KEY].AnalogValue = ImMax(io.NavInputs[_NAV1], io.NavInputs[_NAV2]); } while (0) + MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceDown, ImGuiNavInput_Activate); + MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceRight, ImGuiNavInput_Cancel); + MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceLeft, ImGuiNavInput_Menu); + MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceUp, ImGuiNavInput_Input); + MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadLeft, ImGuiNavInput_DpadLeft); + MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadRight, ImGuiNavInput_DpadRight); + MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadUp, ImGuiNavInput_DpadUp); + MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadDown, ImGuiNavInput_DpadDown); + MAP_LEGACY_NAV_INPUT_TO_KEY2(ImGuiKey_GamepadL1, ImGuiNavInput_FocusPrev, ImGuiNavInput_TweakSlow); + MAP_LEGACY_NAV_INPUT_TO_KEY2(ImGuiKey_GamepadR1, ImGuiNavInput_FocusNext, ImGuiNavInput_TweakFast); + MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickLeft, ImGuiNavInput_LStickLeft); + MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickRight, ImGuiNavInput_LStickRight); + MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickUp, ImGuiNavInput_LStickUp); + MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickDown, ImGuiNavInput_LStickDown); + #undef NAV_MAP_KEY + } +#endif +#endif + + // Update aliases + for (int n = 0; n < ImGuiMouseButton_COUNT; n++) + UpdateAliasKey(MouseButtonToKey(n), io.MouseDown[n], io.MouseDown[n] ? 1.0f : 0.0f); + UpdateAliasKey(ImGuiKey_MouseWheelX, io.MouseWheelH != 0.0f, io.MouseWheelH); + UpdateAliasKey(ImGuiKey_MouseWheelY, io.MouseWheel != 0.0f, io.MouseWheel); + + // Synchronize io.KeyMods and io.KeyXXX values. + // - New backends (1.87+): send io.AddKeyEvent(ImGuiMod_XXX) -> -> (here) deriving io.KeyMods + io.KeyXXX from key array. + // - Legacy backends: set io.KeyXXX bools -> (above) set key array from io.KeyXXX -> (here) deriving io.KeyMods + io.KeyXXX from key array. + // So with legacy backends the 4 values will do a unnecessary back-and-forth but it makes the code simpler and future facing. + io.KeyMods = GetMergedModsFromKeys(); + io.KeyCtrl = (io.KeyMods & ImGuiMod_Ctrl) != 0; + io.KeyShift = (io.KeyMods & ImGuiMod_Shift) != 0; + io.KeyAlt = (io.KeyMods & ImGuiMod_Alt) != 0; + io.KeySuper = (io.KeyMods & ImGuiMod_Super) != 0; + + // Clear gamepad data if disabled + if ((io.BackendFlags & ImGuiBackendFlags_HasGamepad) == 0) + for (int i = ImGuiKey_Gamepad_BEGIN; i < ImGuiKey_Gamepad_END; i++) + { + io.KeysData[i - ImGuiKey_KeysData_OFFSET].Down = false; + io.KeysData[i - ImGuiKey_KeysData_OFFSET].AnalogValue = 0.0f; + } + + // Update keys + for (int i = 0; i < ImGuiKey_KeysData_SIZE; i++) + { + ImGuiKeyData* key_data = &io.KeysData[i]; + key_data->DownDurationPrev = key_data->DownDuration; + key_data->DownDuration = key_data->Down ? (key_data->DownDuration < 0.0f ? 0.0f : key_data->DownDuration + io.DeltaTime) : -1.0f; + } + + // Update keys/input owner (named keys only): one entry per key + for (ImGuiKey key = ImGuiKey_NamedKey_BEGIN; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1)) + { + ImGuiKeyData* key_data = &io.KeysData[key - ImGuiKey_KeysData_OFFSET]; + ImGuiKeyOwnerData* owner_data = &g.KeysOwnerData[key - ImGuiKey_NamedKey_BEGIN]; + owner_data->OwnerCurr = owner_data->OwnerNext; + if (!key_data->Down) // Important: ownership is released on the frame after a release. Ensure a 'MouseDown -> CloseWindow -> MouseUp' chain doesn't lead to someone else seeing the MouseUp. + owner_data->OwnerNext = ImGuiKeyOwner_None; + owner_data->LockThisFrame = owner_data->LockUntilRelease = owner_data->LockUntilRelease && key_data->Down; // Clear LockUntilRelease when key is not Down anymore + } + + UpdateKeyRoutingTable(&g.KeysRoutingTable); } -bool ImGui::IsMouseClicked(ImGuiMouseButton button, ImGuiID owner_id, ImGuiInputFlags flags) +static void ImGui::UpdateMouseInputs() { ImGuiContext& g = *GImGui; - IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); - if (!g.IO.MouseDown[button]) // In theory this should already be encoded as (DownDuration < 0.0f), but testing this facilitates eating mechanism (until we finish work on key ownership) - return false; - const float t = g.IO.MouseDownDuration[button]; - if (t < 0.0f) - return false; - IM_ASSERT((flags & ~ImGuiInputFlags_SupportedByIsKeyPressed) == 0); // Passing flags not supported by this function! + ImGuiIO& io = g.IO; - const bool repeat = (flags & ImGuiInputFlags_Repeat) != 0; - const bool pressed = (t == 0.0f) || (repeat && t > g.IO.KeyRepeatDelay && CalcTypematicRepeatAmount(t - g.IO.DeltaTime, t, g.IO.KeyRepeatDelay, g.IO.KeyRepeatRate) > 0); - if (!pressed) - return false; + // Round mouse position to avoid spreading non-rounded position (e.g. UpdateManualResize doesn't support them well) + if (IsMousePosValid(&io.MousePos)) + io.MousePos = g.MouseLastValidPos = ImFloorSigned(io.MousePos); - if (!TestKeyOwner(MouseButtonToKey(button), owner_id)) - return false; + // If mouse just appeared or disappeared (usually denoted by -FLT_MAX components) we cancel out movement in MouseDelta + if (IsMousePosValid(&io.MousePos) && IsMousePosValid(&io.MousePosPrev)) + io.MouseDelta = io.MousePos - io.MousePosPrev; + else + io.MouseDelta = ImVec2(0.0f, 0.0f); - return true; -} + // If mouse moved we re-enable mouse hovering in case it was disabled by gamepad/keyboard. In theory should use a >0.0f threshold but would need to reset in everywhere we set this to true. + if (io.MouseDelta.x != 0.0f || io.MouseDelta.y != 0.0f) + g.NavDisableMouseHover = false; + + io.MousePosPrev = io.MousePos; + for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++) + { + io.MouseClicked[i] = io.MouseDown[i] && io.MouseDownDuration[i] < 0.0f; + io.MouseClickedCount[i] = 0; // Will be filled below + io.MouseReleased[i] = !io.MouseDown[i] && io.MouseDownDuration[i] >= 0.0f; + io.MouseDownDurationPrev[i] = io.MouseDownDuration[i]; + io.MouseDownDuration[i] = io.MouseDown[i] ? (io.MouseDownDuration[i] < 0.0f ? 0.0f : io.MouseDownDuration[i] + io.DeltaTime) : -1.0f; + if (io.MouseClicked[i]) + { + bool is_repeated_click = false; + if ((float)(g.Time - io.MouseClickedTime[i]) < io.MouseDoubleClickTime) + { + ImVec2 delta_from_click_pos = IsMousePosValid(&io.MousePos) ? (io.MousePos - io.MouseClickedPos[i]) : ImVec2(0.0f, 0.0f); + if (ImLengthSqr(delta_from_click_pos) < io.MouseDoubleClickMaxDist * io.MouseDoubleClickMaxDist) + is_repeated_click = true; + } + if (is_repeated_click) + io.MouseClickedLastCount[i]++; + else + io.MouseClickedLastCount[i] = 1; + io.MouseClickedTime[i] = g.Time; + io.MouseClickedPos[i] = io.MousePos; + io.MouseClickedCount[i] = io.MouseClickedLastCount[i]; + io.MouseDragMaxDistanceAbs[i] = ImVec2(0.0f, 0.0f); + io.MouseDragMaxDistanceSqr[i] = 0.0f; + } + else if (io.MouseDown[i]) + { + // Maintain the maximum distance we reaching from the initial click position, which is used with dragging threshold + ImVec2 delta_from_click_pos = IsMousePosValid(&io.MousePos) ? (io.MousePos - io.MouseClickedPos[i]) : ImVec2(0.0f, 0.0f); + io.MouseDragMaxDistanceSqr[i] = ImMax(io.MouseDragMaxDistanceSqr[i], ImLengthSqr(delta_from_click_pos)); + io.MouseDragMaxDistanceAbs[i].x = ImMax(io.MouseDragMaxDistanceAbs[i].x, delta_from_click_pos.x < 0.0f ? -delta_from_click_pos.x : delta_from_click_pos.x); + io.MouseDragMaxDistanceAbs[i].y = ImMax(io.MouseDragMaxDistanceAbs[i].y, delta_from_click_pos.y < 0.0f ? -delta_from_click_pos.y : delta_from_click_pos.y); + } -bool ImGui::IsMouseReleased(ImGuiMouseButton button) -{ - ImGuiContext& g = *GImGui; - IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); - return g.IO.MouseReleased[button] && TestKeyOwner(MouseButtonToKey(button), ImGuiKeyOwner_Any); // Should be same as IsKeyReleased(MouseButtonToKey(button), ImGuiKeyOwner_Any) -} + // We provide io.MouseDoubleClicked[] as a legacy service + io.MouseDoubleClicked[i] = (io.MouseClickedCount[i] == 2); -bool ImGui::IsMouseReleased(ImGuiMouseButton button, ImGuiID owner_id) -{ - ImGuiContext& g = *GImGui; - IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); - return g.IO.MouseReleased[button] && TestKeyOwner(MouseButtonToKey(button), owner_id); // Should be same as IsKeyReleased(MouseButtonToKey(button), owner_id) + // Clicking any mouse button reactivate mouse hovering which may have been deactivated by gamepad/keyboard navigation + if (io.MouseClicked[i]) + g.NavDisableMouseHover = false; + } } -bool ImGui::IsMouseDoubleClicked(ImGuiMouseButton button) +static void LockWheelingWindow(ImGuiWindow* window, float wheel_amount) { ImGuiContext& g = *GImGui; - IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); - return g.IO.MouseClickedCount[button] == 2 && TestKeyOwner(MouseButtonToKey(button), ImGuiKeyOwner_Any); + if (window) + g.WheelingWindowReleaseTimer = ImMin(g.WheelingWindowReleaseTimer + ImAbs(wheel_amount) * WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER, WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER); + else + g.WheelingWindowReleaseTimer = 0.0f; + if (g.WheelingWindow == window) + return; + IMGUI_DEBUG_LOG_IO("LockWheelingWindow() \"%s\"\n", window ? window->Name : "NULL"); + g.WheelingWindow = window; + g.WheelingWindowRefMousePos = g.IO.MousePos; + if (window == NULL) + { + g.WheelingWindowStartFrame = -1; + g.WheelingAxisAvg = ImVec2(0.0f, 0.0f); + } } -int ImGui::GetMouseClickedCount(ImGuiMouseButton button) +static ImGuiWindow* FindBestWheelingWindow(const ImVec2& wheel) { + // For each axis, find window in the hierarchy that may want to use scrolling ImGuiContext& g = *GImGui; - IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); - return g.IO.MouseClickedCount[button]; -} + ImGuiWindow* windows[2] = { NULL, NULL }; + for (int axis = 0; axis < 2; axis++) + if (wheel[axis] != 0.0f) + for (ImGuiWindow* window = windows[axis] = g.HoveredWindow; window->Flags & ImGuiWindowFlags_ChildWindow; window = windows[axis] = window->ParentWindow) + { + // Bubble up into parent window if: + // - a child window doesn't allow any scrolling. + // - a child window has the ImGuiWindowFlags_NoScrollWithMouse flag. + //// - a child window doesn't need scrolling because it is already at the edge for the direction we are going in (FIXME-WIP) + const bool has_scrolling = (window->ScrollMax[axis] != 0.0f); + const bool inputs_disabled = (window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs); + //const bool scrolling_past_limits = (wheel_v < 0.0f) ? (window->Scroll[axis] <= 0.0f) : (window->Scroll[axis] >= window->ScrollMax[axis]); + if (has_scrolling && !inputs_disabled) // && !scrolling_past_limits) + break; // select this window + } + if (windows[0] == NULL && windows[1] == NULL) + return NULL; -// Return if a mouse click/drag went past the given threshold. Valid to call during the MouseReleased frame. -// [Internal] This doesn't test if the button is pressed -bool ImGui::IsMouseDragPastThreshold(ImGuiMouseButton button, float lock_threshold) -{ - ImGuiContext& g = *GImGui; - IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); - if (lock_threshold < 0.0f) - lock_threshold = g.IO.MouseDragThreshold; - return g.IO.MouseDragMaxDistanceSqr[button] >= lock_threshold * lock_threshold; -} + // If there's only one window or only one axis then there's no ambiguity + if (windows[0] == windows[1] || windows[0] == NULL || windows[1] == NULL) + return windows[1] ? windows[1] : windows[0]; -bool ImGui::IsMouseDragging(ImGuiMouseButton button, float lock_threshold) -{ - ImGuiContext& g = *GImGui; - IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); - if (!g.IO.MouseDown[button]) - return false; - return IsMouseDragPastThreshold(button, lock_threshold); + // If candidate are different windows we need to decide which one to prioritize + // - First frame: only find a winner if one axis is zero. + // - Subsequent frames: only find a winner when one is more than the other. + if (g.WheelingWindowStartFrame == -1) + g.WheelingWindowStartFrame = g.FrameCount; + if ((g.WheelingWindowStartFrame == g.FrameCount && wheel.x != 0.0f && wheel.y != 0.0f) || (g.WheelingAxisAvg.x == g.WheelingAxisAvg.y)) + { + g.WheelingWindowWheelRemainder = wheel; + return NULL; + } + return (g.WheelingAxisAvg.x > g.WheelingAxisAvg.y) ? windows[0] : windows[1]; } -ImVec2 ImGui::GetMousePos() +// Called by NewFrame() +void ImGui::UpdateMouseWheel() { + // Reset the locked window if we move the mouse or after the timer elapses. + // FIXME: Ideally we could refactor to have one timer for "changing window w/ same axis" and a shorter timer for "changing window or axis w/ other axis" (#3795) ImGuiContext& g = *GImGui; - return g.IO.MousePos; -} + if (g.WheelingWindow != NULL) + { + g.WheelingWindowReleaseTimer -= g.IO.DeltaTime; + if (IsMousePosValid() && ImLengthSqr(g.IO.MousePos - g.WheelingWindowRefMousePos) > g.IO.MouseDragThreshold * g.IO.MouseDragThreshold) + g.WheelingWindowReleaseTimer = 0.0f; + if (g.WheelingWindowReleaseTimer <= 0.0f) + LockWheelingWindow(NULL, 0.0f); + } -// NB: prefer to call right after BeginPopup(). At the time Selectable/MenuItem is activated, the popup is already closed! -ImVec2 ImGui::GetMousePosOnOpeningCurrentPopup() -{ - ImGuiContext& g = *GImGui; - if (g.BeginPopupStack.Size > 0) - return g.OpenPopupStack[g.BeginPopupStack.Size - 1].OpenMousePos; - return g.IO.MousePos; -} + ImVec2 wheel; + wheel.x = TestKeyOwner(ImGuiKey_MouseWheelX, ImGuiKeyOwner_None) ? g.IO.MouseWheelH : 0.0f; + wheel.y = TestKeyOwner(ImGuiKey_MouseWheelY, ImGuiKeyOwner_None) ? g.IO.MouseWheel : 0.0f; -// We typically use ImVec2(-FLT_MAX,-FLT_MAX) to denote an invalid mouse position. -bool ImGui::IsMousePosValid(const ImVec2* mouse_pos) -{ - // The assert is only to silence a false-positive in XCode Static Analysis. - // Because GImGui is not dereferenced in every code path, the static analyzer assume that it may be NULL (which it doesn't for other functions). - IM_ASSERT(GImGui != NULL); - const float MOUSE_INVALID = -256000.0f; - ImVec2 p = mouse_pos ? *mouse_pos : GImGui->IO.MousePos; - return p.x >= MOUSE_INVALID && p.y >= MOUSE_INVALID; -} + //IMGUI_DEBUG_LOG("MouseWheel X:%.3f Y:%.3f\n", wheel_x, wheel_y); + ImGuiWindow* mouse_window = g.WheelingWindow ? g.WheelingWindow : g.HoveredWindow; + if (!mouse_window || mouse_window->Collapsed) + return; -// [WILL OBSOLETE] This was designed for backends, but prefer having backend maintain a mask of held mouse buttons, because upcoming input queue system will make this invalid. -bool ImGui::IsAnyMouseDown() -{ - ImGuiContext& g = *GImGui; - for (int n = 0; n < IM_ARRAYSIZE(g.IO.MouseDown); n++) - if (g.IO.MouseDown[n]) - return true; - return false; -} + // Zoom / Scale window + // FIXME-OBSOLETE: This is an old feature, it still works but pretty much nobody is using it and may be best redesigned. + if (wheel.y != 0.0f && g.IO.KeyCtrl && g.IO.FontAllowUserScaling) + { + LockWheelingWindow(mouse_window, wheel.y); + ImGuiWindow* window = mouse_window; + const float new_font_scale = ImClamp(window->FontWindowScale + g.IO.MouseWheel * 0.10f, 0.50f, 2.50f); + const float scale = new_font_scale / window->FontWindowScale; + window->FontWindowScale = new_font_scale; + if (window == window->RootWindow) + { + const ImVec2 offset = window->Size * (1.0f - scale) * (g.IO.MousePos - window->Pos) / window->Size; + SetWindowPos(window, window->Pos + offset, 0); + window->Size = ImFloor(window->Size * scale); + window->SizeFull = ImFloor(window->SizeFull * scale); + } + return; + } + if (g.IO.KeyCtrl) + return; -// Return the delta from the initial clicking position while the mouse button is clicked or was just released. -// This is locked and return 0.0f until the mouse moves past a distance threshold at least once. -// NB: This is only valid if IsMousePosValid(). backends in theory should always keep mouse position valid when dragging even outside the client window. -ImVec2 ImGui::GetMouseDragDelta(ImGuiMouseButton button, float lock_threshold) -{ - ImGuiContext& g = *GImGui; - IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); - if (lock_threshold < 0.0f) - lock_threshold = g.IO.MouseDragThreshold; - if (g.IO.MouseDown[button] || g.IO.MouseReleased[button]) - if (g.IO.MouseDragMaxDistanceSqr[button] >= lock_threshold * lock_threshold) - if (IsMousePosValid(&g.IO.MousePos) && IsMousePosValid(&g.IO.MouseClickedPos[button])) - return g.IO.MousePos - g.IO.MouseClickedPos[button]; - return ImVec2(0.0f, 0.0f); -} + // Mouse wheel scrolling + // As a standard behavior holding SHIFT while using Vertical Mouse Wheel triggers Horizontal scroll instead + // (we avoid doing it on OSX as it the OS input layer handles this already) + const bool swap_axis = g.IO.KeyShift && !g.IO.ConfigMacOSXBehaviors; + if (swap_axis) + { + wheel.x = wheel.y; + wheel.y = 0.0f; + } -void ImGui::ResetMouseDragDelta(ImGuiMouseButton button) -{ - ImGuiContext& g = *GImGui; - IM_ASSERT(button >= 0 && button < IM_ARRAYSIZE(g.IO.MouseDown)); - // NB: We don't need to reset g.IO.MouseDragMaxDistanceSqr - g.IO.MouseClickedPos[button] = g.IO.MousePos; -} + // Maintain a rough average of moving magnitude on both axises + // FIXME: should by based on wall clock time rather than frame-counter + g.WheelingAxisAvg.x = ImExponentialMovingAverage(g.WheelingAxisAvg.x, ImAbs(wheel.x), 30); + g.WheelingAxisAvg.y = ImExponentialMovingAverage(g.WheelingAxisAvg.y, ImAbs(wheel.y), 30); -// Get desired mouse cursor shape. -// Important: this is meant to be used by a platform backend, it is reset in ImGui::NewFrame(), -// updated during the frame, and locked in EndFrame()/Render(). -// If you use software rendering by setting io.MouseDrawCursor then Dear ImGui will render those for you -ImGuiMouseCursor ImGui::GetMouseCursor() -{ - ImGuiContext& g = *GImGui; - return g.MouseCursor; -} + // In the rare situation where FindBestWheelingWindow() had to defer first frame of wheeling due to ambiguous main axis, reinject it now. + wheel += g.WheelingWindowWheelRemainder; + g.WheelingWindowWheelRemainder = ImVec2(0.0f, 0.0f); + if (wheel.x == 0.0f && wheel.y == 0.0f) + return; -void ImGui::SetMouseCursor(ImGuiMouseCursor cursor_type) -{ - ImGuiContext& g = *GImGui; - g.MouseCursor = cursor_type; + // Mouse wheel scrolling: find target and apply + // - don't renew lock if axis doesn't apply on the window. + // - select a main axis when both axises are being moved. + if (ImGuiWindow* window = (g.WheelingWindow ? g.WheelingWindow : FindBestWheelingWindow(wheel))) + if (!(window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs)) + { + bool do_scroll[2] = { wheel.x != 0.0f && window->ScrollMax.x != 0.0f, wheel.y != 0.0f && window->ScrollMax.y != 0.0f }; + if (do_scroll[ImGuiAxis_X] && do_scroll[ImGuiAxis_Y]) + do_scroll[(g.WheelingAxisAvg.x > g.WheelingAxisAvg.y) ? ImGuiAxis_Y : ImGuiAxis_X] = false; + if (do_scroll[ImGuiAxis_X]) + { + LockWheelingWindow(window, wheel.x); + float max_step = window->InnerRect.GetWidth() * 0.67f; + float scroll_step = ImFloor(ImMin(2 * window->CalcFontSize(), max_step)); + SetScrollX(window, window->Scroll.x - wheel.x * scroll_step); + } + if (do_scroll[ImGuiAxis_Y]) + { + LockWheelingWindow(window, wheel.y); + float max_step = window->InnerRect.GetHeight() * 0.67f; + float scroll_step = ImFloor(ImMin(5 * window->CalcFontSize(), max_step)); + SetScrollY(window, window->Scroll.y - wheel.y * scroll_step); + } + } } void ImGui::SetNextFrameWantCaptureKeyboard(bool want_capture_keyboard) @@ -11702,7 +11769,7 @@ static void ImGui::NavUpdate() // Next movement request will clamp the NavId reference rectangle to the visible area, so navigation will resume within those bounds. if (nav_gamepad_active) { - const ImVec2 scroll_dir = GetKeyVector2d(ImGuiKey_GamepadLStickLeft, ImGuiKey_GamepadLStickRight, ImGuiKey_GamepadLStickUp, ImGuiKey_GamepadLStickDown); + const ImVec2 scroll_dir = GetKeyMagnitude2d(ImGuiKey_GamepadLStickLeft, ImGuiKey_GamepadLStickRight, ImGuiKey_GamepadLStickUp, ImGuiKey_GamepadLStickDown); const float tweak_factor = IsKeyDown(ImGuiKey_NavGamepadTweakSlow) ? 1.0f / 10.0f : IsKeyDown(ImGuiKey_NavGamepadTweakFast) ? 10.0f : 1.0f; if (scroll_dir.x != 0.0f && window->ScrollbarX) SetScrollX(window, ImFloor(window->Scroll.x + scroll_dir.x * scroll_speed * tweak_factor)); @@ -12328,9 +12395,9 @@ static void ImGui::NavUpdateWindowing() { ImVec2 nav_move_dir; if (g.NavInputSource == ImGuiInputSource_Keyboard && !io.KeyShift) - nav_move_dir = GetKeyVector2d(ImGuiKey_LeftArrow, ImGuiKey_RightArrow, ImGuiKey_UpArrow, ImGuiKey_DownArrow); + nav_move_dir = GetKeyMagnitude2d(ImGuiKey_LeftArrow, ImGuiKey_RightArrow, ImGuiKey_UpArrow, ImGuiKey_DownArrow); if (g.NavInputSource == ImGuiInputSource_Gamepad) - nav_move_dir = GetKeyVector2d(ImGuiKey_GamepadLStickLeft, ImGuiKey_GamepadLStickRight, ImGuiKey_GamepadLStickUp, ImGuiKey_GamepadLStickDown); + nav_move_dir = GetKeyMagnitude2d(ImGuiKey_GamepadLStickLeft, ImGuiKey_GamepadLStickRight, ImGuiKey_GamepadLStickUp, ImGuiKey_GamepadLStickDown); if (nav_move_dir.x != 0.0f || nav_move_dir.y != 0.0f) { const float NAV_MOVE_SPEED = 800.0f; diff --git a/imgui_internal.h b/imgui_internal.h index f981a014..6de46384 100644 --- a/imgui_internal.h +++ b/imgui_internal.h @@ -3131,7 +3131,7 @@ namespace ImGui IMGUI_API void GetKeyChordName(ImGuiKeyChord key_chord, char* out_buf, int out_buf_size); inline ImGuiKey MouseButtonToKey(ImGuiMouseButton button) { IM_ASSERT(button >= 0 && button < ImGuiMouseButton_COUNT); return (ImGuiKey)(ImGuiKey_MouseLeft + button); } IMGUI_API bool IsMouseDragPastThreshold(ImGuiMouseButton button, float lock_threshold = -1.0f); - IMGUI_API ImVec2 GetKeyVector2d(ImGuiKey key_left, ImGuiKey key_right, ImGuiKey key_up, ImGuiKey key_down); + IMGUI_API ImVec2 GetKeyMagnitude2d(ImGuiKey key_left, ImGuiKey key_right, ImGuiKey key_up, ImGuiKey key_down); IMGUI_API float GetNavTweakPressedAmount(ImGuiAxis axis); IMGUI_API int CalcTypematicRepeatAmount(float t0, float t1, float repeat_delay, float repeat_rate); IMGUI_API void GetTypematicRepeatRate(ImGuiInputFlags flags, float* repeat_delay, float* repeat_rate);