From e74a50f525e880f3a121ecd5b9ff0b33025d5778 Mon Sep 17 00:00:00 2001
From: "Andrew D. Zonenberg" <azonenberg@drawersteak.com>
Date: Wed, 28 Sep 2022 08:19:34 -0700
Subject: [PATCH] Added GetGlyphRangesGreek() helper for Greek & Coptic glyph
 range. (#5676, #5727)

---
 docs/CHANGELOG.txt |  3 ++-
 imgui.h            |  1 +
 imgui_draw.cpp     | 11 +++++++++++
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index e47523f1ec1e..9bb793476b55 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -138,9 +138,10 @@ Other Changes:
 - Nav: Fixed moving/resizing window with gamepad or keyboard when running at very high framerate.
 - Nav: Pressing Space/GamepadFaceDown on a repeating button uses the same repeating rate as a mouse hold.
 - Nav: Fixed an issue opening a menu with Right key from a non-menu window.
-- Fonts, Text: Fixed wrapped-text not doing a fast-forward on lines above the clipping region,
+- Text: Fixed wrapped-text not doing a fast-forward on lines above the clipping region,
   which would result in an abnormal number of vertices created (was slower and more likely to
   asserts with 16-bits ImDrawVtx). (#5720)
+- Fonts: Added GetGlyphRangesGreek() helper for Greek & Coptic glyph range. (#5676, #5727) [@azonenberg]
 - Platform IME: [Windows] Removed call to ImmAssociateContextEx() leading to freeze on some setups.
   (#2589, #5535, #5264, #4972)
 - Misc: ImGuiKey is now a typed enum, allowing ImGuiKey_XXX symbols to be named in debuggers. (#4921)
diff --git a/imgui.h b/imgui.h
index de1340f9aa6b..7a3fab7ef0de 100644
--- a/imgui.h
+++ b/imgui.h
@@ -2781,6 +2781,7 @@ struct ImFontAtlas
     // NB: Make sure that your string are UTF-8 and NOT in your local code page. In C++11, you can create UTF-8 string literal using the u8"Hello world" syntax. See FAQ for details.
     // NB: Consider using ImFontGlyphRangesBuilder to build glyph ranges from textual data.
     IMGUI_API const ImWchar*    GetGlyphRangesDefault();                // Basic Latin, Extended Latin
+    IMGUI_API const ImWchar*    GetGlyphRangesGreek();                  // Default + Greek and Coptic
     IMGUI_API const ImWchar*    GetGlyphRangesKorean();                 // Default + Korean characters
     IMGUI_API const ImWchar*    GetGlyphRangesJapanese();               // Default + Hiragana, Katakana, Half-Width, Selection of 2999 Ideographs
     IMGUI_API const ImWchar*    GetGlyphRangesChineseFull();            // Default + Half-Width + Japanese Hiragana/Katakana + full set of about 21000 CJK Unified Ideographs
diff --git a/imgui_draw.cpp b/imgui_draw.cpp
index 27fcd6dbc5ed..00dbe06c7614 100644
--- a/imgui_draw.cpp
+++ b/imgui_draw.cpp
@@ -2821,6 +2821,17 @@ const ImWchar*   ImFontAtlas::GetGlyphRangesDefault()
     return &ranges[0];
 }
 
+const ImWchar*   ImFontAtlas::GetGlyphRangesGreek()
+{
+    static const ImWchar ranges[] =
+    {
+        0x0020, 0x00FF, // Basic Latin + Latin Supplement
+        0x0370, 0x03FF, // Greek and Coptic
+        0,
+    };
+    return &ranges[0];
+}
+
 const ImWchar*  ImFontAtlas::GetGlyphRangesKorean()
 {
     static const ImWchar ranges[] =