From bb4a6c28996511b9c57465807276d8d8fb624cd4 Mon Sep 17 00:00:00 2001
From: Torbjörn Andersson
Date: Mon, 6 Jan 2014 14:47:17 +0100
Subject: NEVERHOOD: Add mousewheel support to original save/load dialogs

---
 engines/neverhood/gamemodule.cpp | 12 ++++++++++++
 engines/neverhood/gamemodule.h   |  2 ++
 engines/neverhood/menumodule.cpp |  6 ++++++
 engines/neverhood/messages.h     |  6 +++++-
 engines/neverhood/neverhood.cpp  |  6 ++++++
 5 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/engines/neverhood/gamemodule.cpp b/engines/neverhood/gamemodule.cpp
index 45f9465a11..12703d9f39 100644
--- a/engines/neverhood/gamemodule.cpp
+++ b/engines/neverhood/gamemodule.cpp
@@ -119,6 +119,18 @@ void GameModule::handleMouseUp(int16 x, int16 y) {
 	}
 }
 
+void GameModule::handleWheelUp() {
+	if (_childObject) {
+		sendMessage(_childObject, NM_MOUSE_WHEELUP, 0);
+	}
+}
+
+void GameModule::handleWheelDown() {
+	if (_childObject) {
+		sendMessage(_childObject, NM_MOUSE_WHEELDOWN, 0);
+	}
+}
+
 void GameModule::handleSpaceKey() {
 	if (_childObject) {
 		debug(2, "GameModule::handleSpaceKey()");
diff --git a/engines/neverhood/gamemodule.h b/engines/neverhood/gamemodule.h
index 2f2fecf463..198f8f6715 100644
--- a/engines/neverhood/gamemodule.h
+++ b/engines/neverhood/gamemodule.h
@@ -40,6 +40,8 @@ public:
 	void handleMouseMove(int16 x, int16 y);
 	void handleMouseDown(int16 x, int16 y);
 	void handleMouseUp(int16 x, int16 y);
+	void handleWheelUp();
+	void handleWheelDown();
 	void handleSpaceKey();
 	void handleAsciiKey(char key);
 	void handleKeyDown(Common::KeyCode keyCode);
diff --git a/engines/neverhood/menumodule.cpp b/engines/neverhood/menumodule.cpp
index a8d88a7109..cf21bc094e 100644
--- a/engines/neverhood/menumodule.cpp
+++ b/engines/neverhood/menumodule.cpp
@@ -1025,6 +1025,12 @@ uint32 GameStateMenu::handleMessage(int messageNum, const MessageParam &param, E
 			break;
 		}
 		break;
+	case NM_MOUSE_WHEELUP:
+		_listBox->scrollUp();
+		break;
+	case NM_MOUSE_WHEELDOWN:
+		_listBox->scrollDown();
+		break;
 	}
 	return 0;
 }
diff --git a/engines/neverhood/messages.h b/engines/neverhood/messages.h
index 9816c2ca86..5f1e1b87dd 100644
--- a/engines/neverhood/messages.h
+++ b/engines/neverhood/messages.h
@@ -65,7 +65,11 @@ enum NeverhoodMessage {
 	NM_KLAYMEN_RELEASE_LEVER    = 0x4827,
 
 	NM_MOVE_TO_BACK             = 0x482A,
-	NM_MOVE_TO_FRONT            = 0x482B
+	NM_MOVE_TO_FRONT            = 0x482B,
+
+	// New to ScummVM
+	NM_MOUSE_WHEELUP            = 0xF000,
+	NM_MOUSE_WHEELDOWN          = 0xF001
 };
 
 } // End of namespace Neverhood
diff --git a/engines/neverhood/neverhood.cpp b/engines/neverhood/neverhood.cpp
index af09624380..82590d6c96 100644
--- a/engines/neverhood/neverhood.cpp
+++ b/engines/neverhood/neverhood.cpp
@@ -178,6 +178,12 @@ void NeverhoodEngine::mainLoop() {
 			case Common::EVENT_RBUTTONUP:
 				_gameModule->handleMouseUp(event.mouse.x, event.mouse.y);
 				break;
+			case Common::EVENT_WHEELUP:
+				_gameModule->handleWheelUp();
+				break;
+			case Common::EVENT_WHEELDOWN:
+				_gameModule->handleWheelDown();
+				break;
 			case Common::EVENT_QUIT:
 				_system->quit();
 				break;
-- 
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