Nav: Fix ScrollToBringRectIntoView() not bringing entire item into view when nav moves to the left. Correct some comments.

imgui.cpp

@@ -7392,7 +7392,7 @@ ImVec2 ImGui::ScrollToBringRectIntoView(ImGuiWindow* window, const ImRect& item_
     if (!window_rect.Contains(item_rect))
     {
         if (window->ScrollbarX && item_rect.Min.x < window_rect.Min.x)
-            SetScrollFromPosX(window, item_rect.Min.x - window->Pos.x + g.Style.ItemSpacing.x, 0.0f);
+            SetScrollFromPosX(window, item_rect.Min.x - window->Pos.x - g.Style.ItemSpacing.x, 0.0f);
         else if (window->ScrollbarX && item_rect.Max.x >= window_rect.Max.x)
             SetScrollFromPosX(window, item_rect.Max.x - window->Pos.x + g.Style.ItemSpacing.x, 1.0f);
         if (item_rect.Min.y < window_rect.Min.y)

imgui_internal.h

@@ -1191,11 +1191,11 @@ struct ImGuiContext
     ImGuiKeyModFlags        NavJustMovedToKeyMods;
     ImGuiID                 NavNextActivateId;                  // Set by ActivateItem(), queued until next frame.
     ImGuiInputSource        NavInputSource;                     // Keyboard or Gamepad mode? THIS WILL ONLY BE None or NavGamepad or NavKeyboard.
-    ImRect                  NavScoringRect;                     // Rectangle used for scoring, in screen space. Based of window->DC.NavRefRectRel[], modified for directional navigation scoring.
+    ImRect                  NavScoringRect;                     // Rectangle used for scoring, in screen space. Based of window->NavRectRel[], modified for directional navigation scoring.
     int                     NavScoringCount;                    // Metrics for debugging
     ImGuiNavLayer           NavLayer;                           // Layer we are navigating on. For now the system is hard-coded for 0=main contents and 1=menu/title bar, may expose layers later.
     int                     NavIdTabCounter;                    // == NavWindow->DC.FocusIdxTabCounter at time of NavId processing
-    bool                    NavIdIsAlive;                       // Nav widget has been seen this frame ~~ NavRefRectRel is valid
+    bool                    NavIdIsAlive;                       // Nav widget has been seen this frame ~~ NavRectRel is valid
     bool                    NavMousePosDirty;                   // When set we will update mouse position if (io.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos) if set (NB: this not enabled by default)
     bool                    NavDisableHighlight;                // When user starts using mouse, we hide gamepad/keyboard highlight (NB: but they are still available, which is why NavDisableHighlight isn't always != NavDisableMouseHover)
     bool                    NavDisableMouseHover;               // When user starts using gamepad/keyboard, we hide mouse hovering highlight until mouse is touched again.