From 3e06450d276eefcd7bb368badab67e766d5a5751 Mon Sep 17 00:00:00 2001
From: omar <omarcornut@gmail.com>
Date: Sat, 11 Nov 2017 16:58:43 +0100
Subject: [PATCH] Internals: Added ArrowButton() helper.

---
 imgui.cpp        | 26 ++++++++++++++++++++++++++
 imgui_internal.h |  1 +
 2 files changed, 27 insertions(+)

diff --git a/imgui.cpp b/imgui.cpp
index a98806171..55806a38c 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -5995,6 +5995,32 @@ bool ImGui::CloseButton(ImGuiID id, const ImVec2& pos, float radius)
     return pressed;
 }
 
+// [Internal]
+bool ImGui::ArrowButton(ImGuiID id, ImGuiDir dir, ImVec2 padding, ImGuiButtonFlags flags)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
+    if (window->SkipItems)
+        return false;
+
+    const ImGuiStyle& style = g.Style;
+
+    const ImRect bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(g.FontSize + padding.x * 2.0f, g.FontSize + padding.y * 2.0f));
+    ItemSize(bb, style.FramePadding.y);
+    if (!ItemAdd(bb, id))
+        return false;
+
+    bool hovered, held;
+    bool pressed = ButtonBehavior(bb, id, &hovered, &held, flags);
+
+    const ImU32 col = GetColorU32((hovered && held) ? ImGuiCol_ButtonActive : hovered ? ImGuiCol_ButtonHovered : ImGuiCol_Button);
+    RenderNavHighlight(bb, id);
+    RenderFrame(bb.Min, bb.Max, col, true, style.FrameRounding);
+    RenderTriangle(bb.Min + padding, dir, 1.0f);
+
+    return pressed;
+}
+
 void ImGui::Image(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0, const ImVec2& uv1, const ImVec4& tint_col, const ImVec4& border_col)
 {
     ImGuiWindow* window = GetCurrentWindow();
diff --git a/imgui_internal.h b/imgui_internal.h
index a5d877229..85eced9d3 100644
--- a/imgui_internal.h
+++ b/imgui_internal.h
@@ -838,6 +838,7 @@ namespace ImGui
     IMGUI_API bool          ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool* out_held, ImGuiButtonFlags flags = 0);
     IMGUI_API bool          ButtonEx(const char* label, const ImVec2& size_arg = ImVec2(0,0), ImGuiButtonFlags flags = 0);
     IMGUI_API bool          CloseButton(ImGuiID id, const ImVec2& pos, float radius);
+    IMGUI_API bool          ArrowButton(ImGuiID id, ImGuiDir dir, ImVec2 padding, ImGuiButtonFlags flags = 0);
 
     IMGUI_API bool          SliderBehavior(const ImRect& frame_bb, ImGuiID id, float* v, float v_min, float v_max, float power, int decimal_precision, ImGuiSliderFlags flags = 0);
     IMGUI_API bool          SliderFloatN(const char* label, float* v, int components, float v_min, float v_max, const char* display_format, float power);