From 64b786c2aa5e157d846d889963d211385267f2f0 Mon Sep 17 00:00:00 2001
From: omar <omarcornut@gmail.com>
Date: Wed, 24 Jan 2018 10:31:54 +0100
Subject: [PATCH] Nav: Tweak/fixed popup positioning when using nav without the
 io.NavMovesMouse flag (it was always assuming a mouse cursor and allocating
 space for it) (#787) Note that this bit include badly hardcoded sizes,
 expecting an improvement later.

---
 imgui.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/imgui.cpp b/imgui.cpp
index bafcb158f..06476e2cf 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -5647,7 +5647,11 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
         if ((flags & ImGuiWindowFlags_Tooltip) != 0 && !window_pos_set_by_api && !window_is_child_tooltip)
         {
             ImVec2 ref_pos = (!g.NavDisableHighlight && g.NavDisableMouseHover) ? NavCalcPreferredMousePos() : g.IO.MousePos;
-            ImRect rect_to_avoid(ref_pos.x - 16, ref_pos.y - 8, ref_pos.x + 24, ref_pos.y + 24); // FIXME: Completely hard-coded. Store boxes in mouse cursor data? Scale? Center on cursor hit-point?
+            ImRect rect_to_avoid;
+            if (!g.NavDisableHighlight && g.NavDisableMouseHover && !g.IO.NavMovesMouse)
+                rect_to_avoid = ImRect(ref_pos.x - 16, ref_pos.y - 8, ref_pos.x + 16, ref_pos.y + 8); 
+            else
+                rect_to_avoid = ImRect(ref_pos.x - 16, ref_pos.y - 8, ref_pos.x + 24, ref_pos.y + 24); // FIXME-NAV: Completely hard-coded based on expected mouse cursor size. Store boxes in mouse cursor data? Scale? Center on cursor hit-point?
             window->PosFloat = FindBestWindowPosForPopup(ref_pos, window->Size, &window->AutoPosLastDirection, rect_to_avoid);
             if (window->AutoPosLastDirection == ImGuiDir_None)
                 window->PosFloat = ref_pos + ImVec2(2,2); // If there's not enough room, for tooltip we prefer avoiding the cursor at all cost even if it means that part of the tooltip won't be visible.