scrolls + more mouse stuff (bfb)

mappings/none/bfb.mapping

@@ -9,7 +9,11 @@ CLASS none/bfb
 	FIELD h entryHeight I
 	FIELD i mouseX I
 	FIELD j mouseY I
+	FIELD l scrollLastMouseY I
+	FIELD m scrollSpeedY F
 	FIELD n scrollY F
+	FIELD u buttonIdScrollUp I
+	FIELD v buttonIdScrollDown I
 	METHOD <init> (Lnone/bdq;IIIII)V
 		ARG 0 mc
 		ARG 1 width
@@ -42,12 +46,18 @@ CLASS none/bfb
 	METHOD c findEntryIndex (II)I
 		ARG 0 mouseX
 		ARG 1 mouseY
+	METHOD d setScrollButtonIds (II)V
+		ARG 0 up
+		ARG 1 down
 	METHOD g mouseInRange (I)Z
 		ARG 0 y
+	METHOD h scrollByY (I)V
+		ARG 0 dy
 	METHOD i setLeftPos (I)V
 		ARG 0 x1
 	METHOD k contentHeight ()I
 	METHOD l clampScrollY ()V
 	METHOD m getMaxScrollY ()I
 	METHOD n getScrollY ()I
+	METHOD p handleMouseEvent ()V
 	METHOD r getEntryHeight ()I

mappings/none/bfj.mapping

@@ -10,3 +10,4 @@ CLASS none/bfj
 		ARG 2 mouseX
 		ARG 3 mouseY
 	METHOD k contentHeight ()I
+	METHOD p handleMouseEvent ()V

mappings/none/bfl.mapping

@@ -7,3 +7,4 @@ CLASS none/bfl
 		ARG 3 mouseY
 	METHOD b entryCount ()I
 	METHOD k contentHeight ()I
+	METHOD p handleMouseEvent ()V

mappings/none/bfm.mapping

@@ -11,3 +11,4 @@ CLASS none/bfm
 		ARG 3 mouseY
 	METHOD b entryCount ()I
 	METHOD k contentHeight ()I
+	METHOD p handleMouseEvent ()V