From 171e2e078d993afb1428736e402bb41cdb19dd41 Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Fri, 30 Oct 2026 01:56:56 +0000
Subject: [PATCH] Decompile 4 functions in Source/UI/Lists/UIScrollBar.cpp,
 Source/UI/Buttons/UITextButton.cpp, ...

Batch #4232 by eAthena: 0 byte-identical, 4 confirmed by peer review.

- fn_11527 UIChatHisBox::Resize: logic confirmed by peer review
- fn_11528 UIComboBox::Resize: logic confirmed by peer review
- fn_11541 UIBmpRadioBtn::SendMsg: logic confirmed by peer review
- fn_11542 UIChatHisBox::SendMsg: logic confirmed by peer review

Peer-reviewed-by: Yommy, youko
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
---
 Source/UI/Buttons/UIBmpRadioBtn.h  |  1 +
 Source/UI/Buttons/UITextButton.cpp | 24 ++++++++++++++++++++++++
 Source/UI/Lists/UIChatHisBox.h     |  2 ++
 Source/UI/Lists/UIComboBox.h       |  1 +
 Source/UI/Lists/UIScrollBar.cpp    | 23 +++++++++++++++++++++++
 5 files changed, 51 insertions(+)

diff --git a/Source/UI/Buttons/UIBmpRadioBtn.h b/Source/UI/Buttons/UIBmpRadioBtn.h
index dc9d53b3..6a1bb1ff 100644
--- a/Source/UI/Buttons/UIBmpRadioBtn.h
+++ b/Source/UI/Buttons/UIBmpRadioBtn.h
@@ -11,6 +11,7 @@ class UIBmpRadioBtn : public UIWindow {
 public:
   void Slot25(int x, int y) override;
   void Slot28(int x, int y) override;
+  int SendMsg(UIWindow* sender, int message, std::intptr_t argument1, std::intptr_t argument2, std::intptr_t argument3, std::intptr_t argument4) override;
 
 protected:
   /* 007C */ unsigned char unknown_007C[0x60];
diff --git a/Source/UI/Buttons/UITextButton.cpp b/Source/UI/Buttons/UITextButton.cpp
index a09e0508..7b6a5829 100644
--- a/Source/UI/Buttons/UITextButton.cpp
+++ b/Source/UI/Buttons/UITextButton.cpp
@@ -561,6 +561,30 @@ void UIItemMoveInfo::Slot48() {
   this->Invalidate();
 }
 
+// OFFSET: 0x008974A0
+// FUNCTION: fn_11528
+void UIComboBox::Resize(int width, int height) {
+  UIListBox::Resize(width, height);
+  this->topLine = 0;
+  this->verticalBar->position = this->topLine;
+  if (this->verticalOverflow) {
+    this->verticalBar->Move(width - 13, 0);
+    this->verticalBar->Invalidate();
+  } else {
+    this->verticalBar->Move(width - 13, 0);
+  }
+}
+
+// OFFSET: 0x00897BF0
+// FUNCTION: fn_11541
+int UIBmpRadioBtn::SendMsg(UIWindow*, int message, std::intptr_t argument1, std::intptr_t, std::intptr_t, std::intptr_t) {
+  if (message == 13) {
+    this->geometry.unknown_0030 = static_cast<std::uint32_t>(argument1);
+    this->Invalidate();
+  }
+  return 0;
+}
+
 // OFFSET: 0x00892060
 // FUNCTION: fn_11463
 void UIComboBox::Slot27(int x, int y) {
diff --git a/Source/UI/Lists/UIChatHisBox.h b/Source/UI/Lists/UIChatHisBox.h
index cf5757c3..2041bf20 100644
--- a/Source/UI/Lists/UIChatHisBox.h
+++ b/Source/UI/Lists/UIChatHisBox.h
@@ -8,10 +8,12 @@
 
 class UIChatHisBox : public UIListBox {
 public:
+  void Resize(int width, int height) override;
   void Show(int visible) override;
   void Slot25(int x, int y) override;
   void Slot26(int x, int y) override;
   void Slot31(int x, int y) override;
+  int SendMsg(UIWindow* sender, int message, std::intptr_t argument1, std::intptr_t argument2, std::intptr_t argument3, std::intptr_t argument4) override;
   const char* HistoryText(unsigned int index);
   bool SaveChatLog(const char* path);
 
diff --git a/Source/UI/Lists/UIComboBox.h b/Source/UI/Lists/UIComboBox.h
index c8a1325c..2b8fba33 100644
--- a/Source/UI/Lists/UIComboBox.h
+++ b/Source/UI/Lists/UIComboBox.h
@@ -5,6 +5,7 @@
 
 class UIComboBox : public UIListBox {
 public:
+  void Resize(int width, int height) override;
   void Slot25(int x, int y) override;
   void Slot26(int x, int y) override;
   void Slot27(int x, int y) override;
diff --git a/Source/UI/Lists/UIScrollBar.cpp b/Source/UI/Lists/UIScrollBar.cpp
index 9729b776..b822a28c 100644
--- a/Source/UI/Lists/UIScrollBar.cpp
+++ b/Source/UI/Lists/UIScrollBar.cpp
@@ -415,6 +415,29 @@ void UIChatHisBox::Slot25(int x, int y) {
 void UIChatHisBox::Slot31(int, int) {
 }
 
+// OFFSET: 0x008973E0
+// FUNCTION: fn_11527
+void UIChatHisBox::Resize(int width, int height) {
+  UIListBox::Resize(width, height);
+  if (this->verticalOverflow) {
+    const int visibleLines = this->geometry.height / this->lineHeight;
+    this->topLine = static_cast<int>(this->lines.size()) - visibleLines + this->bottomMargin;
+    this->verticalBar->position = this->topLine;
+    this->verticalBar->Move(width - 13, 0);
+    this->verticalBar->Invalidate();
+  } else {
+    this->topLine = 0;
+    this->verticalBar->position = 0;
+    this->verticalBar->Move(width - 13, 0);
+  }
+}
+
+// OFFSET: 0x00897C10
+// FUNCTION: fn_11542
+int UIChatHisBox::SendMsg(UIWindow* sender, int message, std::intptr_t argument1, std::intptr_t argument2, std::intptr_t argument3, std::intptr_t argument4) {
+  return UIListBox::SendMsg(sender, message, argument1, argument2, argument3, argument4);
+}
+
 // OFFSET: 0x0089C340
 // FUNCTION: fn_11585
 void UIChatHisBox::Show(int visible) {