From b33977bc15d7edeccbbd6a05dd7a5099c835f33f Mon Sep 17 00:00:00 2001
From: omar <omarcornut@gmail.com>
Date: Mon, 7 Jan 2019 23:59:05 +0100
Subject: [PATCH] Tests: Reworking hook prototypes for imgui-test to be faster
 and multi-context friendly.

---
 imgui.cpp         |  7 ++++---
 imgui_internal.h  | 10 +++++-----
 imgui_widgets.cpp |  6 +++---
 3 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/imgui.cpp b/imgui.cpp
index 3f9ce8be..bcd4daf7 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -2697,7 +2697,8 @@ bool ImGui::ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb_arg)
     window->DC.LastItemStatusFlags = ImGuiItemStatusFlags_None;
 
 #ifdef IMGUI_ENABLE_TEST_ENGINE
-    ImGuiTestEngineHook_ItemAdd(bb, id);
+    if (id != 0)
+        ImGuiTestEngineHook_ItemAdd(&g, bb, id);
 #endif
 
     // Clipping test
@@ -3251,7 +3252,7 @@ void ImGui::NewFrame()
     ImGuiContext& g = *GImGui;
 
 #ifdef IMGUI_ENABLE_TEST_ENGINE
-    ImGuiTestEngineHook_PreNewFrame();
+    ImGuiTestEngineHook_PreNewFrame(&g);
 #endif
 
     // Check user data
@@ -3427,7 +3428,7 @@ void ImGui::NewFrame()
     g.FrameScopePushedImplicitWindow = true;
 
 #ifdef IMGUI_ENABLE_TEST_ENGINE
-    ImGuiTestEngineHook_PostNewFrame();
+    ImGuiTestEngineHook_PostNewFrame(&g);
 #endif
 }
 
diff --git a/imgui_internal.h b/imgui_internal.h
index 7429c34c..97520ce3 100644
--- a/imgui_internal.h
+++ b/imgui_internal.h
@@ -1429,11 +1429,11 @@ IMGUI_API void              ImFontAtlasBuildMultiplyRectAlpha8(const unsigned ch
 // Test engine hooks (imgui-test)
 //#define IMGUI_ENABLE_TEST_ENGINE
 #ifdef IMGUI_ENABLE_TEST_ENGINE
-extern void                 ImGuiTestEngineHook_PreNewFrame();
-extern void                 ImGuiTestEngineHook_PostNewFrame();
-extern void                 ImGuiTestEngineHook_ItemAdd(const ImRect& bb, ImGuiID id);
-extern void                 ImGuiTestEngineHook_ItemInfo(ImGuiID id, const char* label, int flags);
-#define IMGUI_TEST_ENGINE_ITEM_INFO(_ID, _LABEL, _FLAGS)  ImGuiTestEngineHook_ItemInfo(_ID, _LABEL, _FLAGS)   // Register status flags
+extern void                 ImGuiTestEngineHook_PreNewFrame(ImGuiContext* ctx);
+extern void                 ImGuiTestEngineHook_PostNewFrame(ImGuiContext* ctx);
+extern void                 ImGuiTestEngineHook_ItemAdd(ImGuiContext* ctx, const ImRect& bb, ImGuiID id);
+extern void                 ImGuiTestEngineHook_ItemInfo(ImGuiContext* ctx, ImGuiID id, const char* label, int flags);
+#define IMGUI_TEST_ENGINE_ITEM_INFO(_ID, _LABEL, _FLAGS)  ImGuiTestEngineHook_ItemInfo(&g, _ID, _LABEL, _FLAGS)   // Register status flags
 #else
 #define IMGUI_TEST_ENGINE_ITEM_INFO(_ID, _LABEL, _FLAGS)  do { } while (0)
 #endif
diff --git a/imgui_widgets.cpp b/imgui_widgets.cpp
index dd1c2eb4..2edc5d3c 100644
--- a/imgui_widgets.cpp
+++ b/imgui_widgets.cpp
@@ -282,7 +282,7 @@ void ImGui::TextWrapped(const char* fmt, ...)
 
 void ImGui::TextWrappedV(const char* fmt, va_list args)
 {
-    bool need_backup = (GImGui->CurrentWindow->DC.TextWrapPos < 0.0f);    // Keep existing wrap position if one is already set
+    bool need_backup = (GImGui->CurrentWindow->DC.TextWrapPos < 0.0f);  // Keep existing wrap position if one is already set
     if (need_backup)
         PushTextWrapPos(0.0f);
     TextV(fmt, args);
@@ -399,8 +399,8 @@ bool ImGui::ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool
         g.HoveredWindow = window;
 
 #ifdef IMGUI_ENABLE_TEST_ENGINE
-    if (window->DC.LastItemId != id)
-        ImGuiTestEngineHook_ItemAdd(bb, id);
+    if (id != 0 && window->DC.LastItemId != id)
+        ImGuiTestEngineHook_ItemAdd(&g, bb, id);
 #endif
 
     bool pressed = false;