#pragma TextEncoding = "UTF-8"
#pragma rtGlobals=3		// Use modern global access method and strict wave access.
Function DataValueHookFunc(Data)
STRUCT WMWinHookStruct &Data
	Switch (Data.EventCode)
		Case 7:
			NVar ValP=root:Packages:DataValue:$(data.WinName):$("Csr"+Data.CursorName+"_ValP")
			NVar ValX=root:Packages:DataValue:$(data.WinName):$("Csr"+Data.CursorName+"_ValX")
			NVar ValY=root:Packages:DataValue:$(data.WinName):$("Csr"+Data.CursorName+"_ValY")
			NVar ValD=root:Packages:DataValue:$(data.WinName):$("Csr"+Data.CursorName+"_ValData")
			NVar MC=root:Packages:DataValue:$(data.WinName):MaxCursor
			SVar N_X=root:Packages:DataValue:$(data.WinName):S_NameX
			SVar N_Y=root:Packages:DataValue:$(data.WinName):S_NameY
			SVar N_D=root:Packages:DataValue:$(data.WinName):S_NameData
			Wave W_X=$N_X, W_Y=$N_Y, W_D=$N_D 
			ValP=Data.PointNumber
			ValX=W_X[Data.PointNumber]
			ValY=W_Y[Data.PointNumber]
			ValD=W_D[Data.PointNumber]
			StrSwitch (Data.CursorName)
				Case "A":
				Case "B":
					If (MC>0)
						NVar AP=root:Packages:DataValue:$(data.WinName):CsrA_ValP
						NVar AX=root:Packages:DataValue:$(data.WinName):CsrA_ValX
						NVar AY=root:Packages:DataValue:$(data.WinName):CsrA_ValY
						NVar AD=root:Packages:DataValue:$(data.WinName):CsrA_ValData
						NVar BP=root:Packages:DataValue:$(data.WinName):CsrB_ValP
						NVar BX=root:Packages:DataValue:$(data.WinName):CsrB_ValX
						NVar BY=root:Packages:DataValue:$(data.WinName):CsrB_ValY
						NVar BD=root:Packages:DataValue:$(data.WinName):CsrB_ValData
						NVar ABP=root:Packages:DataValue:$(data.WinName):DeltaAB_ValP
						NVar ABX=root:Packages:DataValue:$(data.WinName):DeltaAB_ValX
						NVar ABY=root:Packages:DataValue:$(data.WinName):DeltaAB_ValY
						NVar ABD=root:Packages:DataValue:$(data.WinName):DeltaAB_ValData
						ABP=AP-BP
						ABX=AX-BX
						ABY=AY-BY
						ABD=AD-BD
					EndIf
					Break
				Default:
					Break
			EndSwitch
			Break
		Default:
			Break
	EndSwitch
	Return 0
End

Function CreateDataValuePanel(WindowName, MaxCursor)
String WindowName
Variable MaxCursor
Variable i
	If ((Maxcursor < 1) || (MaxCursor > 10))
		Print "Number of Cursors must be 1..10"
		Return -1
	EndIf
	If (StrLen(WindowName)==0)
		WindowName=Winname(0,1)
	EndIf
	If (MaxCursor>1)
		NewPanel /EXT=2 /HOST=$WindowName /W=(0,20,(MaxCursor+1)*80+60,110) as "Data values from x,y,d triplets"
	Else
		NewPanel /EXT=2 /HOST=$WindowName /W=(0,20,80+60,110) as "Data values from x,y,d triplets"
	EndIf
	TitleBox T_C, Pos={10,10}, Frame=0, FStyle=1, FixedSize=1, Title="Cursor"
	TitleBox T_P, Pos={10,30}, Frame=0, FStyle=1, FixedSize=1, Title="Point"
	TitleBox T_X, Pos={10,50}, Frame=0, FStyle=1, FixedSize=1, Title="X-Value"
	TitleBox T_Y, Pos={10,70}, Frame=0, FStyle=1, FixedSize=1, Title="Y-Value"
	TitleBox T_D, Pos={10,90}, Frame=0, FStyle=1, FixedSize=1, Title="Data"
	For (i=0;i<MaxCursor;i+=1)
		TitleBox $"T_Csr"+num2char(i+65), Pos={i*80+80,10}, Frame=0, FStyle=1, FixedSize=1, Title=num2char(i+65)
		ValDisplay $"Csr"+num2char(i+65)+"_P", Pos={i*80+80,30}, bodyWidth=70, Frame=0, Title=" ", Value=#("root:Packages:DataValue:"+WindowName+":Csr"+num2char(i+65)+"_ValP")
		ValDisplay $"Csr"+num2char(i+65)+"_X", Pos={i*80+80,50}, bodyWidth=70, Frame=0, Title=" ", Value=#("root:Packages:DataValue:"+WindowName+":Csr"+num2char(i+65)+"_ValX")
		ValDisplay $"Csr"+num2char(i+65)+"_Y", Pos={i*80+80,70}, bodyWidth=70, Frame=0, Title=" ", Value=#("root:Packages:DataValue:"+WindowName+":Csr"+num2char(i+65)+"_ValY")
		ValDisplay $"Csr"+num2char(i+65)+"_D", Pos={i*80+80,90}, bodyWidth=70, Frame=0, Title=" ", Value=#("root:Packages:DataValue:"+WindowName+":Csr"+num2char(i+65)+"_ValData")		
	EndFor
	If (MaxCursor>1)
		TitleBox T_DeltaAB, Pos={i*80+80,10}, Frame=0, FStyle=1, FixedSize=1, Title="Delta AB"
		ValDisplay DeltaAB_P, Pos={i*80+80,30}, bodyWidth=70, Frame=0, Title=" ", Value=#("root:Packages:DataValue:"+WindowName+":DeltaAB_ValP")
		ValDisplay DeltaAB_X, Pos={i*80+80,50}, bodyWidth=70, Frame=0, Title=" ", Value=#("root:Packages:DataValue:"+WindowName+":DeltaAB_ValX")
		ValDisplay DeltaAB_Y, Pos={i*80+80,70}, bodyWidth=70, Frame=0, Title=" ", Value=#("root:Packages:DataValue:"+WindowName+":DeltaAB_ValY")
		ValDisplay DeltaAB_D, Pos={i*80+80,90}, bodyWidth=70, Frame=0, Title=" ", Value=#("root:Packages:DataValue:"+WindowName+":DeltaAB_ValData")
	EndIf
	Return 0	
End

Function InstallDataPanelHook(WindowName, MaxCursor, W_X, W_Y, W_Data)
String WindowName
Variable MaxCursor
Wave W_x, W_Y, W_Data
Variable i
	If (!DataFolderExists("root:Packages"))
		NewDataFolder root:Packages
	EndIf
	If (!DataFolderExists("root:Packages:DataValue"))
		NewDataFolder root:Packages:DataValue
	EndIf
	If (!DataFolderExists("root:Packages:DataValue:"+WindowName))
		NewDataFolder root:Packages:DataValue:$WindowName
	EndIf
	Variable /G root:Packages:DataValue:$(WindowName):MaxCursor=MaxCursor
	If (CreateDataValuePanel(WindowName, MaxCursor)==0)
		For (i=0;i<MaxCursor;i+=1)
			Variable /G $"root:Packages:DataValue:"+WindowName+":Csr"+num2char(i+65)+"_ValP"=NaN
			Variable /G $"root:Packages:DataValue:"+WindowName+":Csr"+num2char(i+65)+"_ValX"=NaN
			Variable /G $"root:Packages:DataValue:"+WindowName+":Csr"+num2char(i+65)+"_ValY"=NaN
			Variable /G $"root:Packages:DataValue:"+WindowName+":Csr"+num2char(i+65)+"_ValData"=NaN			
		EndFor
		Variable /G root:Packages:DataValue:$(WindowName):DeltaAB_ValP=NaN
		Variable /G root:Packages:DataValue:$(WindowName):DeltaAB_ValX=NaN
		Variable /G root:Packages:DataValue:$(WindowName):DeltaAB_ValY=NaN
		Variable /G root:Packages:DataValue:$(WindowName):DeltaAB_ValData=NaN
		String /G root:Packages:DataValue:$(WindowName):S_NameX=GetWavesDataFolder(W_X,2)
		String /G root:Packages:DataValue:$(WindowName):S_NameY=GetWavesDataFolder(W_Y,2)
		String /G root:Packages:DataValue:$(WindowName):S_NameData=GetWavesDataFolder(W_Data,2)
		SetWindow $WindowName hook(DataValueHook)=DataValueHookFunc
	Else
		Return -1
	EndIf
	Return 0
End