Updated ImGui.

3rdparty/dear-imgui/imgui.cpp

@@ -1044,6 +1044,7 @@ static const float NAV_WINDOWING_LIST_APPEAR_DELAY          = 0.15f;    // Time
 // Window resizing from edges (when io.ConfigWindowsResizeFromEdges = true and ImGuiBackendFlags_HasMouseCursors is set in io.BackendFlags by back-end)
 static const float WINDOWS_RESIZE_FROM_EDGES_HALF_THICKNESS = 4.0f;     // Extend outside and inside windows. Affect FindHoveredWindow().
 static const float WINDOWS_RESIZE_FROM_EDGES_FEEDBACK_TIMER = 0.04f;    // Reduce visual noise by only highlighting the border after a certain time.
+static const float WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER    = 2.00f;    // Lock scrolled window (so it doesn't pick child windows that are scrolling through) for a certaint time, unless mouse moved.
 
 //-------------------------------------------------------------------------
 // [SECTION] FORWARD DECLARATIONS
@@ -1091,6 +1092,7 @@ static int              FindWindowFocusIndex(ImGuiWindow* window);
 static void             UpdateMouseInputs();
 static void             UpdateMouseWheel();
 static bool             UpdateManualResize(ImGuiWindow* window, const ImVec2& size_auto_fit, int* border_held, int resize_grip_count, ImU32 resize_grip_col[4]);
+static void             UpdateDebugToolItemPicker();
 static void             RenderWindowOuterBorders(ImGuiWindow* window);
 static void             RenderWindowDecorations(ImGuiWindow* window, const ImRect& title_bar_rect, bool title_bar_is_highlight, int resize_grip_count, const ImU32 resize_grip_col[4], float resize_grip_draw_size);
 static void             RenderWindowTitleBarContents(ImGuiWindow* window, const ImRect& title_bar_rect, const char* name, bool* p_open);
@@ -3466,19 +3468,45 @@ static void ImGui::UpdateMouseInputs()
     }
 }
 
-void ImGui::UpdateMouseWheel()
+static void StartLockWheelingWindow(ImGuiWindow* window)
 {
     ImGuiContext& g = *GImGui;
-    if (!g.HoveredWindow || g.HoveredWindow->Collapsed)
+    if (g.WheelingWindow == window)
         return;
+    g.WheelingWindow = window;
+    g.WheelingWindowRefMousePos = g.IO.MousePos;
+    g.WheelingWindowTimer = WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER;
+}
+
+void ImGui::UpdateMouseWheel()
+{
+    ImGuiContext& g = *GImGui;
+
+    // Reset the locked window if we move the mouse or after the timer elapses
+    if (g.WheelingWindow != NULL)
+    {
+        g.WheelingWindowTimer -= g.IO.DeltaTime;
+        if (IsMousePosValid() && ImLengthSqr(g.IO.MousePos - g.WheelingWindowRefMousePos) > g.IO.MouseDragThreshold * g.IO.MouseDragThreshold)
+            g.WheelingWindowTimer = 0.0f;
+        if (g.WheelingWindowTimer <= 0.0f)
+        {
+            g.WheelingWindow = NULL;
+            g.WheelingWindowTimer = 0.0f;
+        }
+    }
+
     if (g.IO.MouseWheel == 0.0f && g.IO.MouseWheelH == 0.0f)
         return;
 
+    ImGuiWindow* window = g.WheelingWindow ? g.WheelingWindow : g.HoveredWindow;
+    if (!window || 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 (g.IO.MouseWheel != 0.0f && g.IO.KeyCtrl && g.IO.FontAllowUserScaling)
     {
-        ImGuiWindow* window = g.HoveredWindow;
+        StartLockWheelingWindow(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;
@@ -3494,20 +3522,19 @@ void ImGui::UpdateMouseWheel()
 
     // Mouse wheel scrolling
     // If a child window has the ImGuiWindowFlags_NoScrollWithMouse flag, we give a chance to scroll its parent
-    // FIXME: Lock scrolling window while not moving (see #2604)
 
     // Vertical Mouse Wheel scrolling
     const float wheel_y = (g.IO.MouseWheel != 0.0f && !g.IO.KeyShift) ? g.IO.MouseWheel : 0.0f;
     if (wheel_y != 0.0f && !g.IO.KeyCtrl)
     {
-        ImGuiWindow* window = g.HoveredWindow;
+        StartLockWheelingWindow(window);
         while ((window->Flags & ImGuiWindowFlags_ChildWindow) && ((window->ScrollMax.y == 0.0f) || ((window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))))
             window = window->ParentWindow;
         if (!(window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))
         {
             float max_step = window->InnerRect.GetHeight() * 0.67f;
             float scroll_step = ImFloor(ImMin(5 * window->CalcFontSize(), max_step));
-            SetWindowScrollY(window, window->Scroll.y - wheel_y * scroll_step);
+            SetScrollY(window, window->Scroll.y - wheel_y * scroll_step);
         }
     }
 
@@ -3515,14 +3542,14 @@ void ImGui::UpdateMouseWheel()
     const float wheel_x = (g.IO.MouseWheelH != 0.0f && !g.IO.KeyShift) ? g.IO.MouseWheelH : (g.IO.MouseWheel != 0.0f && g.IO.KeyShift) ? g.IO.MouseWheel : 0.0f;
     if (wheel_x != 0.0f && !g.IO.KeyCtrl)
     {
-        ImGuiWindow* window = g.HoveredWindow;
+        StartLockWheelingWindow(window);
         while ((window->Flags & ImGuiWindowFlags_ChildWindow) && ((window->ScrollMax.x == 0.0f) || ((window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))))
             window = window->ParentWindow;
         if (!(window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))
         {
             float max_step = window->InnerRect.GetWidth() * 0.67f;
             float scroll_step = ImFloor(ImMin(2 * window->CalcFontSize(), max_step));
-            SetWindowScrollX(window, window->Scroll.x - wheel_x * scroll_step);
+            SetScrollX(window, window->Scroll.x - wheel_x * scroll_step);
         }
     }
 }
@@ -3586,15 +3613,10 @@ void ImGui::UpdateHoveredWindowAndCaptureFlags()
     g.IO.WantTextInput = (g.WantTextInputNextFrame != -1) ? (g.WantTextInputNextFrame != 0) : false;
 }
 
-void ImGui::NewFrame()
+static void NewFrameSanityChecks()
 {
-    IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() and ImGui::SetCurrentContext() ?");
     ImGuiContext& g = *GImGui;
 
-#ifdef IMGUI_ENABLE_TEST_ENGINE
-    ImGuiTestEngineHook_PreNewFrame(&g);
-#endif
-
     // Check user data
     // (We pass an error message in the assert expression to make it visible to programmers who are not using a debugger, as most assert handlers display their argument)
     IM_ASSERT(g.Initialized);
@@ -3607,7 +3629,6 @@ void ImGui::NewFrame()
     IM_ASSERT(g.Style.Alpha >= 0.0f && g.Style.Alpha <= 1.0f            && "Invalid style setting. Alpha cannot be negative (allows us to avoid a few clamps in color computations)!");
     IM_ASSERT(g.Style.WindowMinSize.x >= 1.0f && g.Style.WindowMinSize.y >= 1.0f && "Invalid style setting.");
     IM_ASSERT(g.Style.WindowMenuButtonPosition == ImGuiDir_Left || g.Style.WindowMenuButtonPosition == ImGuiDir_Right);
-
     for (int n = 0; n < ImGuiKey_COUNT; n++)
         IM_ASSERT(g.IO.KeyMap[n] >= -1 && g.IO.KeyMap[n] < IM_ARRAYSIZE(g.IO.KeysDown) && "io.KeyMap[] contains an out of bound value (need to be 0..512, or -1 for unmapped key)");
 
@@ -3618,6 +3639,19 @@ void ImGui::NewFrame()
     // Perform simple check: the beta io.ConfigWindowsResizeFromEdges option requires back-end to honor mouse cursor changes and set the ImGuiBackendFlags_HasMouseCursors flag accordingly.
     if (g.IO.ConfigWindowsResizeFromEdges && !(g.IO.BackendFlags & ImGuiBackendFlags_HasMouseCursors))
         g.IO.ConfigWindowsResizeFromEdges = false;
+}
+
+void ImGui::NewFrame()
+{
+    IM_ASSERT(GImGui != NULL && "No current context. Did you call ImGui::CreateContext() and ImGui::SetCurrentContext() ?");
+    ImGuiContext& g = *GImGui;
+
+#ifdef IMGUI_ENABLE_TEST_ENGINE
+    ImGuiTestEngineHook_PreNewFrame(&g);
+#endif
+
+    // Check and assert for various common IO and Configuration mistakes
+    NewFrameSanityChecks();
 
     // Load settings on first frame (if not explicitly loaded manually before)
     if (!g.SettingsLoaded)
@@ -3800,6 +3834,24 @@ void ImGui::NewFrame()
     ClosePopupsOverWindow(g.NavWindow, false);
 
     // [DEBUG] Item picker tool - start with DebugStartItemPicker() - useful to visually select an item and break into its call-stack.
+    UpdateDebugToolItemPicker();
+
+    // Create implicit/fallback window - which we will only render it if the user has added something to it.
+    // We don't use "Debug" to avoid colliding with user trying to create a "Debug" window with custom flags.
+    // This fallback is particularly important as it avoid ImGui:: calls from crashing.
+    SetNextWindowSize(ImVec2(400,400), ImGuiCond_FirstUseEver);
+    Begin("Debug##Default");
+    g.FrameScopePushedImplicitWindow = true;
+
+#ifdef IMGUI_ENABLE_TEST_ENGINE
+    ImGuiTestEngineHook_PostNewFrame(&g);
+#endif
+}
+
+// [DEBUG] Item picker tool - start with DebugStartItemPicker() - useful to visually select an item and break into its call-stack.
+void ImGui::UpdateDebugToolItemPicker()
+{
+    ImGuiContext& g = *GImGui;
     g.DebugItemPickerBreakID = 0;
     if (g.DebugItemPickerActive)
     {
@@ -3819,17 +3871,6 @@ void ImGui::NewFrame()
         ImGui::TextColored(GetStyleColorVec4(hovered_id ? ImGuiCol_Text : ImGuiCol_TextDisabled), "Click to break in debugger!");
         ImGui::EndTooltip();
     }
-
-    // Create implicit/fallback window - which we will only render it if the user has added something to it.
-    // We don't use "Debug" to avoid colliding with user trying to create a "Debug" window with custom flags.
-    // This fallback is particularly important as it avoid ImGui:: calls from crashing.
-    SetNextWindowSize(ImVec2(400,400), ImGuiCond_FirstUseEver);
-    Begin("Debug##Default");
-    g.FrameScopePushedImplicitWindow = true;
-
-#ifdef IMGUI_ENABLE_TEST_ENGINE
-    ImGuiTestEngineHook_PostNewFrame(&g);
-#endif
 }
 
 void ImGui::Initialize(ImGuiContext* context)
@@ -5583,7 +5624,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
 
         const bool window_pos_with_pivot = (window->SetWindowPosVal.x != FLT_MAX && window->HiddenFramesCannotSkipItems == 0);
         if (window_pos_with_pivot)
-            SetWindowPos(window, ImMax(style.DisplaySafeAreaPadding, window->SetWindowPosVal - window->SizeFull * window->SetWindowPosPivot), 0); // Position given a pivot (e.g. for centering)
+            SetWindowPos(window, window->SetWindowPosVal - window->SizeFull * window->SetWindowPosPivot, 0); // Position given a pivot (e.g. for centering)
         else if ((flags & ImGuiWindowFlags_ChildMenu) != 0)
             window->Pos = FindBestWindowPosForPopup(window);
         else if ((flags & ImGuiWindowFlags_Popup) != 0 && !window_pos_set_by_api && window_just_appearing_after_hidden_for_resize)
@@ -5743,6 +5784,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
         if (render_decorations_in_parent)
             window->DrawList = parent_window->DrawList;
         
+        // Handle title bar, scrollbar, resize grips and resize borders
         const ImGuiWindow* window_to_highlight = g.NavWindowingTarget ? g.NavWindowingTarget : g.NavWindow;
         const bool title_bar_is_highlight = want_focus || (window_to_highlight && window->RootWindowForTitleBarHighlight == window_to_highlight->RootWindowForTitleBarHighlight);
         RenderWindowDecorations(window, title_bar_rect, title_bar_is_highlight, resize_grip_count, resize_grip_col, resize_grip_draw_size);
@@ -6510,16 +6552,6 @@ ImVec2 ImGui::GetWindowPos()
     return window->Pos;
 }
 
-void ImGui::SetWindowScrollX(ImGuiWindow* window, float new_scroll_x)
-{
-    window->Scroll.x = new_scroll_x;
-}
-
-void ImGui::SetWindowScrollY(ImGuiWindow* window, float new_scroll_y)
-{
-    window->Scroll.y = new_scroll_y;
-}
-
 void ImGui::SetWindowPos(ImGuiWindow* window, const ImVec2& pos, ImGuiCond cond)
 {
     // Test condition (NB: bit 0 is always true) and clear flags for next time
@@ -6907,6 +6939,18 @@ void ImGui::SetScrollY(float scroll_y)
     window->ScrollTargetCenterRatio.y = 0.0f;
 }
 
+void ImGui::SetScrollX(ImGuiWindow* window, float new_scroll_x)
+{
+    window->ScrollTarget.x = new_scroll_x;
+    window->ScrollTargetCenterRatio.x = 0.0f;
+}
+
+void ImGui::SetScrollY(ImGuiWindow* window, float new_scroll_y)
+{
+    window->ScrollTarget.y = new_scroll_y;
+    window->ScrollTargetCenterRatio.y = 0.0f;
+}
+
 void ImGui::SetScrollFromPosX(float local_x, float center_x_ratio)
 {
     // We store a target position so centering can occur on the next frame when we are guaranteed to have a known window size
@@ -8319,9 +8363,9 @@ static void ImGui::NavUpdate()
         if (window->DC.NavLayerActiveMask == 0x00 && window->DC.NavHasScroll && g.NavMoveRequest)
         {
             if (g.NavMoveDir == ImGuiDir_Left || g.NavMoveDir == ImGuiDir_Right)
-                SetWindowScrollX(window, ImFloor(window->Scroll.x + ((g.NavMoveDir == ImGuiDir_Left) ? -1.0f : +1.0f) * scroll_speed));
+                SetScrollX(window, ImFloor(window->Scroll.x + ((g.NavMoveDir == ImGuiDir_Left) ? -1.0f : +1.0f) * scroll_speed));
             if (g.NavMoveDir == ImGuiDir_Up || g.NavMoveDir == ImGuiDir_Down)
-                SetWindowScrollY(window, ImFloor(window->Scroll.y + ((g.NavMoveDir == ImGuiDir_Up) ? -1.0f : +1.0f) * scroll_speed));
+                SetScrollY(window, ImFloor(window->Scroll.y + ((g.NavMoveDir == ImGuiDir_Up) ? -1.0f : +1.0f) * scroll_speed));
         }
 
         // *Normal* Manual scroll with NavScrollXXX keys
@@ -8329,12 +8373,12 @@ static void ImGui::NavUpdate()
         ImVec2 scroll_dir = GetNavInputAmount2d(ImGuiNavDirSourceFlags_PadLStick, ImGuiInputReadMode_Down, 1.0f/10.0f, 10.0f);
         if (scroll_dir.x != 0.0f && window->ScrollbarX)
         {
-            SetWindowScrollX(window, ImFloor(window->Scroll.x + scroll_dir.x * scroll_speed));
+            SetScrollX(window, ImFloor(window->Scroll.x + scroll_dir.x * scroll_speed));
             g.NavMoveFromClampedRefRect = true;
         }
         if (scroll_dir.y != 0.0f)
         {
-            SetWindowScrollY(window, ImFloor(window->Scroll.y + scroll_dir.y * scroll_speed));
+            SetScrollY(window, ImFloor(window->Scroll.y + scroll_dir.y * scroll_speed));
             g.NavMoveFromClampedRefRect = true;
         }
     }
@@ -8438,42 +8482,44 @@ static void ImGui::NavUpdateMoveResult()
 static float ImGui::NavUpdatePageUpPageDown(int allowed_dir_flags)
 {
     ImGuiContext& g = *GImGui;
-    if (g.NavMoveDir == ImGuiDir_None && g.NavWindow && !(g.NavWindow->Flags & ImGuiWindowFlags_NoNavInputs) && !g.NavWindowingTarget && g.NavLayer == 0)
+    if (g.NavMoveDir != ImGuiDir_None || g.NavWindow == NULL)
+        return 0.0f;
+    if ((g.NavWindow->Flags & ImGuiWindowFlags_NoNavInputs) || g.NavWindowingTarget != NULL || g.NavLayer != 0)
+        return 0.0f;
+
+    ImGuiWindow* window = g.NavWindow;
+    bool page_up_held = IsKeyDown(g.IO.KeyMap[ImGuiKey_PageUp]) && (allowed_dir_flags & (1 << ImGuiDir_Up));
+    bool page_down_held = IsKeyDown(g.IO.KeyMap[ImGuiKey_PageDown]) && (allowed_dir_flags & (1 << ImGuiDir_Down));
+    if (page_up_held != page_down_held) // If either (not both) are pressed
     {
-        ImGuiWindow* window = g.NavWindow;
-        bool page_up_held = IsKeyDown(g.IO.KeyMap[ImGuiKey_PageUp]) && (allowed_dir_flags & (1 << ImGuiDir_Up));
-        bool page_down_held = IsKeyDown(g.IO.KeyMap[ImGuiKey_PageDown]) && (allowed_dir_flags & (1 << ImGuiDir_Down));
-        if (page_up_held != page_down_held) // If either (not both) are pressed
+        if (window->DC.NavLayerActiveMask == 0x00 && window->DC.NavHasScroll)
+        {
+            // Fallback manual-scroll when window has no navigable item
+            if (IsKeyPressed(g.IO.KeyMap[ImGuiKey_PageUp], true))
+                SetScrollY(window, window->Scroll.y - window->InnerRect.GetHeight());
+            else if (IsKeyPressed(g.IO.KeyMap[ImGuiKey_PageDown], true))
+                SetScrollY(window, window->Scroll.y + window->InnerRect.GetHeight());
+        }
+        else
         {
-            if (window->DC.NavLayerActiveMask == 0x00 && window->DC.NavHasScroll)
+            const ImRect& nav_rect_rel = window->NavRectRel[g.NavLayer];
+            const float page_offset_y = ImMax(0.0f, window->InnerRect.GetHeight() - window->CalcFontSize() * 1.0f + nav_rect_rel.GetHeight());
+            float nav_scoring_rect_offset_y = 0.0f;
+            if (IsKeyPressed(g.IO.KeyMap[ImGuiKey_PageUp], true))
             {
-                // Fallback manual-scroll when window has no navigable item
-                if (IsKeyPressed(g.IO.KeyMap[ImGuiKey_PageUp], true))
-                    SetWindowScrollY(window, window->Scroll.y - window->InnerRect.GetHeight());
-                else if (IsKeyPressed(g.IO.KeyMap[ImGuiKey_PageDown], true))
-                    SetWindowScrollY(window, window->Scroll.y + window->InnerRect.GetHeight());
+                nav_scoring_rect_offset_y = -page_offset_y;
+                g.NavMoveDir = ImGuiDir_Down; // Because our scoring rect is offset, we intentionally request the opposite direction (so we can always land on the last item)
+                g.NavMoveClipDir = ImGuiDir_Up;
+                g.NavMoveRequestFlags = ImGuiNavMoveFlags_AllowCurrentNavId | ImGuiNavMoveFlags_AlsoScoreVisibleSet;
             }
-            else
+            else if (IsKeyPressed(g.IO.KeyMap[ImGuiKey_PageDown], true))
             {
-                const ImRect& nav_rect_rel = window->NavRectRel[g.NavLayer];
-                const float page_offset_y = ImMax(0.0f, window->InnerRect.GetHeight() - window->CalcFontSize() * 1.0f + nav_rect_rel.GetHeight());
-                float nav_scoring_rect_offset_y = 0.0f;
-                if (IsKeyPressed(g.IO.KeyMap[ImGuiKey_PageUp], true))
-                {
-                    nav_scoring_rect_offset_y = -page_offset_y;
-                    g.NavMoveDir = ImGuiDir_Down; // Because our scoring rect is offset, we intentionally request the opposite direction (so we can always land on the last item)
-                    g.NavMoveClipDir = ImGuiDir_Up;
-                    g.NavMoveRequestFlags = ImGuiNavMoveFlags_AllowCurrentNavId | ImGuiNavMoveFlags_AlsoScoreVisibleSet;
-                }
-                else if (IsKeyPressed(g.IO.KeyMap[ImGuiKey_PageDown], true))
-                {
-                    nav_scoring_rect_offset_y = +page_offset_y;
-                    g.NavMoveDir = ImGuiDir_Up; // Because our scoring rect is offset, we intentionally request the opposite direction (so we can always land on the last item)
-                    g.NavMoveClipDir = ImGuiDir_Down;
-                    g.NavMoveRequestFlags = ImGuiNavMoveFlags_AllowCurrentNavId | ImGuiNavMoveFlags_AlsoScoreVisibleSet;
-                }
-                return nav_scoring_rect_offset_y;
+                nav_scoring_rect_offset_y = +page_offset_y;
+                g.NavMoveDir = ImGuiDir_Up; // Because our scoring rect is offset, we intentionally request the opposite direction (so we can always land on the last item)
+                g.NavMoveClipDir = ImGuiDir_Down;
+                g.NavMoveRequestFlags = ImGuiNavMoveFlags_AllowCurrentNavId | ImGuiNavMoveFlags_AlsoScoreVisibleSet;
             }
+            return nav_scoring_rect_offset_y;
         }
     }
     return 0.0f;
@@ -9491,12 +9537,13 @@ static void SetClipboardTextFn_DefaultImpl(void*, const char* text)
     ::CloseClipboard();
 }
 
-#elif defined(__APPLE__) && TARGET_OS_OSX && !defined(IMGUI_DISABLE_OSX_FUNCTIONS)
+#elif defined(__APPLE__) && TARGET_OS_OSX && defined(IMGUI_ENABLE_OSX_DEFAULT_CLIPBOARD_FUNCTIONS)
 
 #include <Carbon/Carbon.h>  // Use old API to avoid need for separate .mm file
 static PasteboardRef main_clipboard = 0;
 
 // OSX clipboard implementation
+// If you enable this you will need to add '-framework ApplicationServices' to your linker command-line!
 static void SetClipboardTextFn_DefaultImpl(void*, const char* text)
 {
     if (!main_clipboard)

3rdparty/dear-imgui/imgui.h

@@ -47,7 +47,7 @@ Index of this file:
 // Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY99 then bounce up to XYY00, XYY01 etc. when release tagging happens)
 #define IMGUI_VERSION               "1.72 WIP"
-#define IMGUI_VERSION_NUM           17101
+#define IMGUI_VERSION_NUM           17102
 #define IMGUI_CHECKVERSION()        ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert), sizeof(ImDrawIdx))
 
 // Define attributes of all API symbols declarations (e.g. for DLL under Windows)
@@ -942,6 +942,7 @@ enum ImGuiKey_
     ImGuiKey_Space,
     ImGuiKey_Enter,
     ImGuiKey_Escape,
+    ImGuiKey_KeyPadEnter,
     ImGuiKey_A,         // for text edit CTRL+A: select all
     ImGuiKey_C,         // for text edit CTRL+C: copy
     ImGuiKey_V,         // for text edit CTRL+V: paste

3rdparty/dear-imgui/imgui_demo.cpp

@@ -2593,7 +2593,9 @@ static void ShowDemoWindowColumns()
         static int columns_count = 4;
         const int lines_count = 3;
         ImGui::SetNextItemWidth(ImGui::GetFontSize() * 8);
-        ImGui::DragInt("##columns_count", &columns_count, 0.1f, 1, 10, "%d columns");
+        ImGui::DragInt("##columns_count", &columns_count, 0.1f, 2, 10, "%d columns");
+        if (columns_count < 2)
+            columns_count = 2;
         ImGui::SameLine();
         ImGui::Checkbox("horizontal", &h_borders);
         ImGui::SameLine();
@@ -3447,7 +3449,7 @@ struct ExampleAppConsole
         Commands.push_back("CLEAR");
         Commands.push_back("CLASSIFY");  // "classify" is only here to provide an example of "C"+[tab] completing to "CL" and displaying matches.
         AutoScroll = true;
-        ScrollToBottom = true;
+        ScrollToBottom = false;
         AddLog("Welcome to Dear ImGui!");
     }
     ~ExampleAppConsole()
@@ -3468,7 +3470,6 @@ struct ExampleAppConsole
         for (int i = 0; i < Items.Size; i++)
             free(Items[i]);
         Items.clear();
-        ScrollToBottom = true;
     }
 
     void    AddLog(const char* fmt, ...) IM_FMTARGS(2)
@@ -3481,8 +3482,6 @@ struct ExampleAppConsole
         buf[IM_ARRAYSIZE(buf)-1] = 0;
         va_end(args);
         Items.push_back(Strdup(buf));
-        if (AutoScroll)
-            ScrollToBottom = true;
     }
 
     void    Draw(const char* title, bool* p_open)
@@ -3511,8 +3510,7 @@ struct ExampleAppConsole
         if (ImGui::SmallButton("Add Dummy Text"))  { AddLog("%d some text", Items.Size); AddLog("some more text"); AddLog("display very important message here!"); } ImGui::SameLine();
         if (ImGui::SmallButton("Add Dummy Error")) { AddLog("[error] something went wrong"); } ImGui::SameLine();
         if (ImGui::SmallButton("Clear")) { ClearLog(); } ImGui::SameLine();
-        bool copy_to_clipboard = ImGui::SmallButton("Copy"); ImGui::SameLine();
-        if (ImGui::SmallButton("Scroll to bottom")) ScrollToBottom = true;
+        bool copy_to_clipboard = ImGui::SmallButton("Copy");
         //static float t = 0.0f; if (ImGui::GetTime() - t > 0.02f) { t = ImGui::GetTime(); AddLog("Spam %f", t); }
 
         ImGui::Separator();
@@ -3520,9 +3518,7 @@ struct ExampleAppConsole
         // Options menu
         if (ImGui::BeginPopup("Options"))
         {
-            if (ImGui::Checkbox("Auto-scroll", &AutoScroll))
-                if (AutoScroll)
-                    ScrollToBottom = true;
+            ImGui::Checkbox("Auto-scroll", &AutoScroll);
             ImGui::EndPopup();
         }
 
@@ -3571,9 +3567,11 @@ struct ExampleAppConsole
         }
         if (copy_to_clipboard)
             ImGui::LogFinish();
-        if (ScrollToBottom)
+
+        if (ScrollToBottom || (AutoScroll && ImGui::GetScrollY() >= ImGui::GetScrollMaxY()))
             ImGui::SetScrollHereY(1.0f);
         ScrollToBottom = false;
+
         ImGui::PopStyleVar();
         ImGui::EndChild();
         ImGui::Separator();
@@ -3765,13 +3763,11 @@ struct ExampleAppLog
     ImGuiTextBuffer     Buf;
     ImGuiTextFilter     Filter;
     ImVector<int>       LineOffsets;        // Index to lines offset. We maintain this with AddLog() calls, allowing us to have a random access on lines
-    bool                AutoScroll;
-    bool                ScrollToBottom;
+    bool                AutoScroll;     // Keep scrolling if already at the bottom
 
     ExampleAppLog()
     {
         AutoScroll = true;
-        ScrollToBottom = false;
         Clear();
     }
 
@@ -3792,8 +3788,6 @@ struct ExampleAppLog
         for (int new_size = Buf.size(); old_size < new_size; old_size++)
             if (Buf[old_size] == '\n')
                 LineOffsets.push_back(old_size + 1);
-        if (AutoScroll)
-            ScrollToBottom = true;
     }
 
     void    Draw(const char* title, bool* p_open = NULL)
@@ -3807,9 +3801,7 @@ struct ExampleAppLog
         // Options menu
         if (ImGui::BeginPopup("Options"))
         {
-            if (ImGui::Checkbox("Auto-scroll", &AutoScroll))
-                if (AutoScroll)
-                    ScrollToBottom = true;
+            ImGui::Checkbox("Auto-scroll", &AutoScroll);
             ImGui::EndPopup();
         }
 
@@ -3874,9 +3866,9 @@ struct ExampleAppLog
         }
         ImGui::PopStyleVar();
 
-        if (ScrollToBottom)
+        if (AutoScroll && ImGui::GetScrollY() >= ImGui::GetScrollMaxY())
             ImGui::SetScrollHereY(1.0f);
-        ScrollToBottom = false;
+
         ImGui::EndChild();
         ImGui::End();
     }

3rdparty/dear-imgui/imgui_internal.h

@@ -868,6 +868,9 @@ struct ImGuiContext
     ImGuiWindow*            HoveredWindow;                      // Will catch mouse inputs
     ImGuiWindow*            HoveredRootWindow;                  // Will catch mouse inputs (for focus/move only)
     ImGuiWindow*            MovingWindow;                       // Track the window we clicked on (in order to preserve focus). The actually window that is moved is generally MovingWindow->RootWindow.
+    ImGuiWindow*            WheelingWindow;
+    ImVec2                  WheelingWindowRefMousePos;
+    float                   WheelingWindowTimer;
 
     // Item/widgets state and tracking information
     ImGuiID                 HoveredId;                          // Hovered widget
@@ -1058,6 +1061,8 @@ struct ImGuiContext
         HoveredWindow = NULL;
         HoveredRootWindow = NULL;
         MovingWindow = NULL;
+        WheelingWindow = NULL;
+        WheelingWindowTimer = 0.0f;
 
         HoveredId = 0;
         HoveredIdAllowOverlap = false;
@@ -1460,8 +1465,8 @@ namespace ImGui
     IMGUI_API ImVec2        CalcWindowExpectedSize(ImGuiWindow* window);
     IMGUI_API bool          IsWindowChildOf(ImGuiWindow* window, ImGuiWindow* potential_parent);
     IMGUI_API bool          IsWindowNavFocusable(ImGuiWindow* window);
-    IMGUI_API void          SetWindowScrollX(ImGuiWindow* window, float new_scroll_x);
-    IMGUI_API void          SetWindowScrollY(ImGuiWindow* window, float new_scroll_y);
+    IMGUI_API void          SetScrollX(ImGuiWindow* window, float new_scroll_x);
+    IMGUI_API void          SetScrollY(ImGuiWindow* window, float new_scroll_y);
     IMGUI_API ImRect        GetWindowAllowedExtentRect(ImGuiWindow* window);
     IMGUI_API void          SetWindowPos(ImGuiWindow* window, const ImVec2& pos, ImGuiCond cond = 0);
     IMGUI_API void          SetWindowSize(ImGuiWindow* window, const ImVec2& size, ImGuiCond cond = 0);

3rdparty/dear-imgui/imgui_widgets.cpp

@@ -3652,8 +3652,8 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
 
         if (IsKeyPressedMap(ImGuiKey_LeftArrow))                        { state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_LINESTART : is_wordmove_key_down ? STB_TEXTEDIT_K_WORDLEFT : STB_TEXTEDIT_K_LEFT) | k_mask); }
         else if (IsKeyPressedMap(ImGuiKey_RightArrow))                  { state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_LINEEND : is_wordmove_key_down ? STB_TEXTEDIT_K_WORDRIGHT : STB_TEXTEDIT_K_RIGHT) | k_mask); }
-        else if (IsKeyPressedMap(ImGuiKey_UpArrow) && is_multiline)     { if (io.KeyCtrl) SetWindowScrollY(draw_window, ImMax(draw_window->Scroll.y - g.FontSize, 0.0f)); else state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_TEXTSTART : STB_TEXTEDIT_K_UP) | k_mask); }
-        else if (IsKeyPressedMap(ImGuiKey_DownArrow) && is_multiline)   { if (io.KeyCtrl) SetWindowScrollY(draw_window, ImMin(draw_window->Scroll.y + g.FontSize, GetScrollMaxY())); else state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_TEXTEND : STB_TEXTEDIT_K_DOWN) | k_mask); }
+        else if (IsKeyPressedMap(ImGuiKey_UpArrow) && is_multiline)     { if (io.KeyCtrl) SetScrollY(draw_window, ImMax(draw_window->Scroll.y - g.FontSize, 0.0f)); else state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_TEXTSTART : STB_TEXTEDIT_K_UP) | k_mask); }
+        else if (IsKeyPressedMap(ImGuiKey_DownArrow) && is_multiline)   { if (io.KeyCtrl) SetScrollY(draw_window, ImMin(draw_window->Scroll.y + g.FontSize, GetScrollMaxY())); else state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_TEXTEND : STB_TEXTEDIT_K_DOWN) | k_mask); }
         else if (IsKeyPressedMap(ImGuiKey_Home))                        { state->OnKeyPressed(io.KeyCtrl ? STB_TEXTEDIT_K_TEXTSTART | k_mask : STB_TEXTEDIT_K_LINESTART | k_mask); }
         else if (IsKeyPressedMap(ImGuiKey_End))                         { state->OnKeyPressed(io.KeyCtrl ? STB_TEXTEDIT_K_TEXTEND | k_mask : STB_TEXTEDIT_K_LINEEND | k_mask); }
         else if (IsKeyPressedMap(ImGuiKey_Delete) && !is_readonly)      { state->OnKeyPressed(STB_TEXTEDIT_K_DELETE | k_mask); }
@@ -3668,7 +3668,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
             }
             state->OnKeyPressed(STB_TEXTEDIT_K_BACKSPACE | k_mask);
         }
-        else if (IsKeyPressedMap(ImGuiKey_Enter))
+        else if (IsKeyPressedMap(ImGuiKey_Enter) || IsKeyPressedMap(ImGuiKey_KeyPadEnter))
         {
             bool ctrl_enter_for_new_line = (flags & ImGuiInputTextFlags_CtrlEnterForNewLine) != 0;
             if (!is_multiline || (ctrl_enter_for_new_line && !io.KeyCtrl) || (!ctrl_enter_for_new_line && io.KeyCtrl))
@@ -4008,9 +4008,8 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
                     scroll_y = ImMax(0.0f, cursor_offset.y - g.FontSize);
                 else if (cursor_offset.y - size.y >= scroll_y)
                     scroll_y = cursor_offset.y - size.y;
-                draw_window->DC.CursorPos.y += (draw_window->Scroll.y - scroll_y);   // Manipulate cursor pos immediately avoid a frame of lag
+                draw_pos.y += (draw_window->Scroll.y - scroll_y);   // Manipulate cursor pos immediately avoid a frame of lag
                 draw_window->Scroll.y = scroll_y;
-                draw_pos.y = draw_window->DC.CursorPos.y;
             }
 
             state->CursorFollow = false;
@@ -7167,7 +7166,8 @@ float ImGui::GetColumnOffset(int column_index)
 {
     ImGuiWindow* window = GetCurrentWindowRead();
     ImGuiColumns* columns = window->DC.CurrentColumns;
-    IM_ASSERT(columns != NULL);
+    if (columns == NULL)
+        return 0.0f;
 
     if (column_index < 0)
         column_index = columns->Current;
@@ -7193,9 +7193,11 @@ static float GetColumnWidthEx(ImGuiColumns* columns, int column_index, bool befo
 
 float ImGui::GetColumnWidth(int column_index)
 {
-    ImGuiWindow* window = GetCurrentWindowRead();
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
     ImGuiColumns* columns = window->DC.CurrentColumns;
-    IM_ASSERT(columns != NULL);
+    if (columns == NULL)
+        return GetContentRegionAvail().x;
 
     if (column_index < 0)
         column_index = columns->Current;