From 7f0063f85849ae51eb3d291426cfc3e9da1b1507 Mon Sep 17 00:00:00 2001
From: omar <omarcornut@gmail.com>
Date: Sun, 20 Aug 2017 19:32:18 +0800
Subject: [PATCH] Columns: Added ImGuiColumnsFlags_NoResize flag (internal).
 (#913, #125)

---
 imgui.cpp        | 19 +++++++++++--------
 imgui_internal.h |  5 +++--
 2 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/imgui.cpp b/imgui.cpp
index f32523cfe..7c7a76369 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -10100,14 +10100,17 @@ void ImGui::EndColumns()
 			if (IsClippedEx(column_rect, &column_id, false))
 				continue;
             
-            bool hovered, held;
-			ButtonBehavior(column_rect, column_id, &hovered, &held);
-			if (hovered || held)
-				g.MouseCursor = ImGuiMouseCursor_ResizeEW;
-            if (held && g.ActiveIdIsJustActivated)
-                g.ActiveIdClickOffset.x -= column_w; // Store from center of column line (we used a 8 wide rect for columns clicking). This is used by GetDraggedColumnOffset().
-            if (held)
-                dragging_column = i;
+            bool hovered = false, held = false;
+            if (!(window->DC.ColumnsFlags & ImGuiColumnsFlags_NoResize))
+            {
+                ButtonBehavior(column_rect, column_id, &hovered, &held);
+                if (hovered || held)
+                    g.MouseCursor = ImGuiMouseCursor_ResizeEW;
+                if (held && g.ActiveIdIsJustActivated)
+                    g.ActiveIdClickOffset.x -= column_w; // Store from center of column line (we used a 8 wide rect for columns clicking). This is used by GetDraggedColumnOffset().
+                if (held)
+                    dragging_column = i;
+            }
 
             // Draw column
             const ImU32 col = GetColorU32(held ? ImGuiCol_SeparatorActive : hovered ? ImGuiCol_SeparatorHovered : ImGuiCol_Separator);
diff --git a/imgui_internal.h b/imgui_internal.h
index 7d7f3fa87..f73cdcc88 100644
--- a/imgui_internal.h
+++ b/imgui_internal.h
@@ -187,8 +187,9 @@ enum ImGuiColumnsFlags_
 {
     // Default: 0
     ImGuiColumnsFlags_NoBorder              = 1 << 0,   // Disable column dividers
-    ImGuiColumnsFlags_NoPreserveWidths      = 1 << 1,   // Disable column width preservation when adjusting columns
-    ImGuiColumnsFlags_NoForceWithinWindow   = 1 << 2    // Disable forcing columns to fit within window
+    ImGuiColumnsFlags_NoResize              = 1 << 1,   // Disable resizing columns when clicking on the dividers
+    ImGuiColumnsFlags_NoPreserveWidths      = 1 << 2,   // Disable column width preservation when adjusting columns
+    ImGuiColumnsFlags_NoForceWithinWindow   = 1 << 3    // Disable forcing columns to fit within window
 };
 
 enum ImGuiSelectableFlagsPrivate_