From 96dd3fa97d6ca96f05916ae6cc2dfc9ae0a65c0d Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Sat, 31 Oct 2026 06:25:26 +0000
Subject: [PATCH] Decompile fn_03879 (UIChangeMaterialWnd_CheckBox::Paint)

Batch #7320 by aDw: 0 byte-identical, 1 confirmed by peer review.

- fn_03879 UIChangeMaterialWnd_CheckBox::Paint: logic confirmed by peer review

Peer-reviewed-by: eAthena, gordaoprogramas
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
---
 Source/UI/UIChangeMaterialWnd.cpp | 31 +++++++++++++++++++++++++++++++
 Source/UI/UIChangeMaterialWnd.h   |  1 +
 2 files changed, 32 insertions(+)

diff --git a/Source/UI/UIChangeMaterialWnd.cpp b/Source/UI/UIChangeMaterialWnd.cpp
index e3e0f575..c98a8f4d 100644
--- a/Source/UI/UIChangeMaterialWnd.cpp
+++ b/Source/UI/UIChangeMaterialWnd.cpp
@@ -740,3 +740,34 @@ void UIChangeMaterialWnd::Slot15(int width, int height) {
   this->AddChild(list);
   list->SendMsg(nullptr, 23, 0, 0, 0, 0);
 }
+
+// OFFSET: 0x005E1E20
+// FUNCTION: fn_03879
+void UIChangeMaterialWnd_CheckBox::Paint() {
+  if (this->m_checked.empty() || this->m_unchecked.empty()) {
+    return;
+  }
+
+  if (this->m_disabled == 1) {
+    this->ClearSurface(0xFFFF00FFu);
+    return;
+  }
+
+  if (this->m_hidden == 1) {
+    return;
+  }
+
+  if (this->geometry.unknown_0030 == 0) {
+    auto* bitmap = static_cast<CBitmapRes*>(ResourceMgr::Instance().Load(Resolve(this->m_unchecked.c_str())));
+    this->DrawBitmap(0, 0, bitmap ? &bitmap->image : nullptr, false);
+    if (!this->ascendingText.empty()) {
+      this->DrawTextAt(this->m_context->fonts, this->m_context->locale, 0xc, 1, this->ascendingText.c_str(), 0, 0, 0xc, 0, 0, 0);
+    }
+  } else if (this->geometry.unknown_0030 == 1) {
+    auto* bitmap = static_cast<CBitmapRes*>(ResourceMgr::Instance().Load(Resolve(this->m_checked.c_str())));
+    this->DrawBitmap(0, 0, bitmap ? &bitmap->image : nullptr, false);
+    if (!this->descendingText.empty()) {
+      this->DrawTextAt(this->m_context->fonts, this->m_context->locale, 0xc, 1, this->descendingText.c_str(), 0, 0, 0xc, 0, 0, 0);
+    }
+  }
+}
diff --git a/Source/UI/UIChangeMaterialWnd.h b/Source/UI/UIChangeMaterialWnd.h
index 5bca191f..04d04a20 100644
--- a/Source/UI/UIChangeMaterialWnd.h
+++ b/Source/UI/UIChangeMaterialWnd.h
@@ -49,6 +49,7 @@ class UIChangeMaterialWnd_CheckBox : public UICheckBox {
 public:
   // INLINED
   UIChangeMaterialWnd_CheckBox(UIWindowContext& windows, UIButtonContext& controls) : UICheckBox(windows, controls) {}
+  void Paint() override;
 
   /* 010C */ std::string ascendingText;
   /* 0124 */ std::string descendingText;