From 50b3a14d0ab430d30c2c9c961ce305684b5f2e64 Mon Sep 17 00:00:00 2001
From: ocornut <omarcornut@gmail.com>
Date: Sun, 31 Jul 2016 13:05:13 +0200
Subject: [PATCH] Merge 2545d75c3b978638329ac65cc1851f3f5998bb5b from Nav -
 Tidying up, removed two unnecessary window flags from being exposed in
 imgui.h

---
 imgui.cpp        | 15 +++++----------
 imgui.h          |  4 +---
 imgui_internal.h |  1 +
 3 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/imgui.cpp b/imgui.cpp
index c76a6db7..6a5973fc 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -1775,6 +1775,7 @@ ImGuiWindow::ImGuiWindow(const char* name)
     PopupId = 0;
     AutoFitFramesX = AutoFitFramesY = -1;
     AutoFitOnlyGrows = false;
+    AutoFitChildAxises = 0x00;
     AutoPosLastDirection = -1;
     HiddenFrames = 0;
     SetWindowPosAllowFlags = SetWindowSizeAllowFlags = SetWindowCollapsedAllowFlags = ImGuiCond_Always | ImGuiCond_Once | ImGuiCond_FirstUseEver | ImGuiCond_Appearing;
@@ -3636,18 +3637,11 @@ static bool BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, b
 
     const ImVec2 content_avail = ImGui::GetContentRegionAvail();
     ImVec2 size = ImFloor(size_arg);
+    const int auto_fit_axises = ((size.x == 0.0f) ? 0x01 : 0x00) | ((size.y == 0.0f) ? 0x02 : 0x00);
     if (size.x <= 0.0f)
-    {
-        if (size.x == 0.0f)
-            flags |= ImGuiWindowFlags_ChildWindowAutoFitX;
         size.x = ImMax(content_avail.x, 4.0f) - fabsf(size.x); // Arbitrary minimum zero-ish child size of 4.0f (0.0f causing too much issues)
-    }
     if (size.y <= 0.0f)
-    {
-        if (size.y == 0.0f)
-            flags |= ImGuiWindowFlags_ChildWindowAutoFitY;
         size.y = ImMax(content_avail.y, 4.0f) - fabsf(size.y);
-    }
     if (border)
         flags |= ImGuiWindowFlags_ShowBorders;
     flags |= extra_flags;
@@ -3660,6 +3654,7 @@ static bool BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, b
 
     bool ret = ImGui::Begin(title, NULL, size, -1.0f, flags);
     ImGuiWindow* child_window = ImGui::GetCurrentWindow();
+    child_window->AutoFitChildAxises = auto_fit_axises;
     if (!(parent_window->Flags & ImGuiWindowFlags_ShowBorders))
         child_window->Flags &= ~ImGuiWindowFlags_ShowBorders;
 
@@ -3690,9 +3685,9 @@ void ImGui::EndChild()
     {
         // When using auto-filling child window, we don't provide full width/height to ItemSize so that it doesn't feed back into automatic size-fitting.
         ImVec2 sz = GetWindowSize();
-        if (window->Flags & ImGuiWindowFlags_ChildWindowAutoFitX) // Arbitrary minimum zero-ish child size of 4.0f causes less trouble than a 0.0f
+        if (window->AutoFitChildAxises & 0x01) // Arbitrary minimum zero-ish child size of 4.0f causes less trouble than a 0.0f
             sz.x = ImMax(4.0f, sz.x);
-        if (window->Flags & ImGuiWindowFlags_ChildWindowAutoFitY)
+        if (window->AutoFitChildAxises & 0x02)
             sz.y = ImMax(4.0f, sz.y);
 
         ImGui::End();
diff --git a/imgui.h b/imgui.h
index 249183a9..5cf8b5a4 100644
--- a/imgui.h
+++ b/imgui.h
@@ -512,9 +512,7 @@ enum ImGuiWindowFlags_
     ImGuiWindowFlags_AlwaysHorizontalScrollbar=1<< 15,  // Always show horizontal scrollbar (even if ContentSize.x < Size.x)
     ImGuiWindowFlags_AlwaysUseWindowPadding = 1 << 16,  // Ensure child windows without border uses style.WindowPadding (ignored by default for non-bordered child windows, because more convenient)
     // [Internal]
-    ImGuiWindowFlags_ChildWindow            = 1 << 20,  // Don't use! For internal use by BeginChild()
-    ImGuiWindowFlags_ChildWindowAutoFitX    = 1 << 21,  // Don't use! For internal use by BeginChild()
-    ImGuiWindowFlags_ChildWindowAutoFitY    = 1 << 22,  // Don't use! For internal use by BeginChild()
+    ImGuiWindowFlags_ChildWindow            = 1 << 22,  // Don't use! For internal use by BeginChild()
     ImGuiWindowFlags_ComboBox               = 1 << 23,  // Don't use! For internal use by ComboBox()
     ImGuiWindowFlags_Tooltip                = 1 << 24,  // Don't use! For internal use by BeginTooltip()
     ImGuiWindowFlags_Popup                  = 1 << 25,  // Don't use! For internal use by BeginPopup()
diff --git a/imgui_internal.h b/imgui_internal.h
index d98d2cb4..31effe44 100644
--- a/imgui_internal.h
+++ b/imgui_internal.h
@@ -679,6 +679,7 @@ struct IMGUI_API ImGuiWindow
     ImGuiID                 PopupId;                            // ID in the popup stack when this window is used as a popup/menu (because we use generic Name/ID for recycling)
     int                     AutoFitFramesX, AutoFitFramesY;
     bool                    AutoFitOnlyGrows;
+    int                     AutoFitChildAxises;
     int                     AutoPosLastDirection;
     int                     HiddenFrames;
     ImGuiCond               SetWindowPosAllowFlags;             // store condition flags for next SetWindowPos() call.