From 366754fc5718fc62f28fc7cfe0610d6c791bc573 Mon Sep 17 00:00:00 2001
From: nucular <nucular@users.noreply.github.com>
Date: Tue, 30 May 2017 07:02:05 +0200
Subject: [PATCH] Expose ImGuiListClipper and its members (#19)

* Provide access to ImGuiListClipper members
* Added ImGuiListClipper_GetDisplayStart and ImGuiListClipper_GetDisplayEnd to cimgui.h
---
 cimgui/Makefile        |  3 ++-
 cimgui/cimgui.h        |  8 ++++++++
 cimgui/listClipper.cpp | 27 +++++++++++++++++++++++++++
 3 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 cimgui/listClipper.cpp

diff --git a/cimgui/Makefile b/cimgui/Makefile
index 349cb40..807a2c5 100644
--- a/cimgui/Makefile
+++ b/cimgui/Makefile
@@ -3,8 +3,9 @@
 # Compatible with Ubuntu 14.04.1 and Mac OS X
 
 OBJS = cimgui.o
-OBJS += fontAtlas.o 
+OBJS += fontAtlas.o
 OBJS += drawList.o
+OBJS += listClipper.o
 #OBJS += test.o
 OBJS += ../imgui/imgui.o
 OBJS += ../imgui/imgui_draw.o
diff --git a/cimgui/cimgui.h b/cimgui/cimgui.h
index 4dad982..6a54d1d 100644
--- a/cimgui/cimgui.h
+++ b/cimgui/cimgui.h
@@ -34,6 +34,7 @@ struct ImFont;
 struct ImFontConfig;
 struct ImFontAtlas;
 struct ImDrawCmd;
+struct ImGuiListClipper;
 
 typedef unsigned short ImDrawIdx;
 typedef unsigned int ImU32;
@@ -491,3 +492,10 @@ CIMGUI_API void             ImDrawList_PrimWriteIdx(struct ImDrawList* list, ImD
 CIMGUI_API void             ImDrawList_PrimVtx(struct ImDrawList* list, CONST struct ImVec2 pos, CONST struct ImVec2 uv, ImU32 col);
 CIMGUI_API void             ImDrawList_UpdateClipRect(struct ImDrawList* list);
 CIMGUI_API void             ImDrawList_UpdateTextureID(struct ImDrawList* list);
+
+// ImGuiListClipper
+CIMGUI_API void ImGuiListClipper_Begin(ImGuiListClipper* clipper, int count, float items_height);
+CIMGUI_API void ImGuiListClipper_End(ImGuiListClipper* clipper);
+CIMGUI_API bool ImGuiListClipper_Step(ImGuiListClipper* clipper);
+CIMGUI_API int ImGuiListClipper_GetDisplayStart(ImGuiListClipper* clipper);
+CIMGUI_API int ImGuiListClipper_GetDisplayEnd(ImGuiListClipper* clipper);
diff --git a/cimgui/listClipper.cpp b/cimgui/listClipper.cpp
new file mode 100644
index 0000000..aea0a21
--- /dev/null
+++ b/cimgui/listClipper.cpp
@@ -0,0 +1,27 @@
+#include "../imgui/imgui.h"
+#include "cimgui.h"
+
+CIMGUI_API void ImGuiListClipper_Begin(ImGuiListClipper* clipper, int count, float items_height)
+{
+  clipper->Begin(count, items_height);
+}
+
+CIMGUI_API void ImGuiListClipper_End(ImGuiListClipper* clipper)
+{
+  clipper->End();
+}
+
+CIMGUI_API bool ImGuiListClipper_Step(ImGuiListClipper* clipper)
+{
+  return clipper->Step();
+}
+
+CIMGUI_API int ImGuiListClipper_GetDisplayStart(ImGuiListClipper* clipper)
+{
+  return clipper->DisplayStart;
+}
+
+CIMGUI_API int ImGuiListClipper_GetDisplayEnd(ImGuiListClipper* clipper)
+{
+  return clipper->DisplayEnd;
+}