Create a panel representing equipment status

Make/O/N=16 gwDigitalInputChan0
SetDimLabel 0, 0, A, gwDigitalInputChan0
SetDimLabel 0, 1, B, gwDigitalInputChan0
SetDimLabel 0, 2, C, gwDigitalInputChan0

Make/o/n=16 wSwitches0
wSwitches0[0,3] = 1

BuildDigInputPanel("test", 4, channelNum = 0)

#pragma rtGlobals=1     // Use modern global access method.
 
Function pnlDigitalInput0()
    DoWindow/F pnlDigitalInputChan0
    if (!V_flag)
        // TODO:  Retrieve the type of panel to get from settings
        Variable x0, y0
        
        BuildDigInputPanel("pnlDigitalInputChan0", 4, channelNum = 0)
    endif
End
 
Function DigInputButtonPress(s)
    STRUCT WMWinHookStruct &s
    
    switch (s.eventCode)
        Case 3:     // mouse down
            String buttonPressed = ""
            Variable buttonFound
            buttonFound = FindControl(s, buttonPressed)
            // Change the color and frame of the button to make
            // it looked like it has been toggled.
            if (buttonFound)
                ControlInfo/W=$(s.winName) $(buttonPressed)
                if (V_flag == 4)        // Make sure this control is a ValDisplay
                    Variable buttonValue
                    if (ValDisplay_getValue(s.winName, buttonPressed, buttonValue))
                        if (buttonValue)
                            // Button has been clicked, so change frame to indented.
                            ValDisplay $(buttonPressed) win=$(s.winName), frame = 4
                        else
                            // Button has been unclicked, so change frame to raised.
                            ValDisplay $(buttonPressed) win=$(s.winName), frame = 1                                         
                        endif
                        buttonValue = !(buttonValue)
                        ValDisplay_setValue(s.winName, buttonPressed, buttonValue)
                        return 1
                    endif
                endif
            endif
            break
    EndSwitch
    return 0
End
 
//**
// Determines if the mouse cursor is currently over a control
// and provides the name of the control.
//
// @param s
//  This is an instance of the WMWinHookStruct structure which
//  is the structured that is passed to a named window hook function.
// @param controlName
//  Name of control the the mouse cursor is currently over.  This is
//  the output parameter of this function.
// @param controlType
//  [OPTIONAL]  If provided, only controls of this type will be considered.
//  For a list of types and their meanings, look at the ControlInfo
//  command help and look at the V_flag parameter set for each control type.
//  By default, the type of a control is ignored.
// @param excludedState
//  [OPTIONAL] If non-zero, controls will be considered from consideration
//  if they are disabled and/or hidden.  Use the following values to exclude
//  controls in the following states:
//      Value           State
//      1               Hidden
//      2               Disabled (but visible)
//      3               Hidden OR Disabled (but visible)
//  By default, the disable state of a control is ignored.
//
// @return
//  If a control was found meeting the criteria specified in the parameters,
//  the function will return 1.  If no control is found, 0 will be returned.
//*
Function FindControl(s, controlName, [controlType, excludedState])
    STRUCT WMWinHookStruct &s
    String &controlName
    Variable controlType
    Variable excludedState
 
    Variable controlFound
    controlName = ""
        
    if (ParamIsDefault(controlType))
        // Match all types of controls
        controlType = 0
    endif
    
    String controlList = ControlNameList(s.winName, ";", "*")
    Variable numControls = ItemsInList(controlList, ";")
    String currentControlName
    Variable n
    For (n=0; n<numControls; n+=1)
        currentControlName = StringFromList(n, controlList, ";")
        ControlInfo/W=$(s.winName) $(currentControlName)
        
        // Exclude this control if only controls of a certain type should
        // be considered.
        if (controlType != 0 && controlType != V_flag)
            continue
        endif
        
        // Possibly exclude this control if it is hidden or disabled
        if (V_disable != 0)
            if (V_disable & excludedState)
                continue
            endif
        endif
        
        // Determine if this control was clicked on.
        Variable controlClicked
        controlClicked = DoesCursorOverlap(s, V_height, V_width, V_top, V_left)
        if (controlClicked)
            controlName = currentControlName
            controlFound = 1
        endif
    EndFor
    
    return controlFound
End
 
//**
// Determines if the current mouse position falls within a certain boundary.
//
// @param s
//  This is an instance of the WMWinHookStruct structure which
//  is the structured that is passed to a named window hook function.
// @param V_height
//  Height of target area, in pixels.
// @param V_width
//  Width of target area, in pixels.
// @param V_top
//  Top of target area, in pixels.
// @param V_left
//  Left of target area, in pixels.
//
// @return
//  If the mouse cursor overlaps the target area, 1 is returned.  Otherwise, 0 is returned.
//*
Function DoesCursorOverlap(s, V_height, V_width, V_top, V_left)
    STRUCT WMWinHookStruct &s
    Variable V_height
    Variable V_width
    Variable V_top
    Variable V_left
    
    // Check vertical location
    if (s.mouseLoc.v >= V_top && s.mouseLoc.v <= V_top + V_height)
        // Check horizontal location
        if (s.mouseLoc.h >= V_left && s.mouseLoc.h <= V_left + V_width)
            return 1
        endif
    endif
    return 0    
End
 
//**
// Get the value currently displayed in a ValDisplay control.
//
// @param win
//  Name of window with control.
// @param ctrlName
//  Name of ValDisplay control.
// @param valueVar
//  Variable passed by reference where the value will be stored.
//
// @return
//  0 if there was an error or 1 if there was no error.
//*
Function ValDisplay_getValue(win, ctrlName, valueVar)
    String win
    String ctrlName
    Variable &valueVar
    
    ControlInfo/W=$(win) $(ctrlName)
    if (WinType(win) != 0 && abs(V_flag) != 4)      // Make sure this control is a ValDisplay
        return 0        // Error
    else
        valueVar = V_value
        return 1        // Success
    endif               
End
 
//**
// Sets the value currently displayed in a ValDisplay control by
// writing that value to the point in the wave attached to the ValDisplay
// control.  Obviously this assumes that the ValDisplay control is
// associated with a wave and not a variable.
//
// @param win
//  Name of window with control.
// @param ctrlName
//  Name of ValDisplay control.
// @param valueVar
//  Variable passed by reference containing the value that should be
//  set in whatever point in whatever wave controls the ValDisplay control..
//
// @return
//  0 if there was an error or 1 if there was no error.
//*
Function ValDisplay_setValue(win, ctrlName, valueVar)
    String win
    String ctrlName
    Variable &valueVar
    
    Variable result
    String currentDF = GetDataFolder(1)
    SetDataFolder root:
    
    ControlInfo/W=$(win) $(ctrlName)
    String source = S_value
    if (WinType(win) != 0 && V_flag != 4)       // Make sure this control is a ValDisplay
        result = 0      // Error
    else
        // Get the name of the wave and point of wave controlling
        // the value displayed in this control.
        String wName, rowString, colString
        Variable rowNum = NaN, colNum = NaN
        String regExp = "([[:alnum:]:_]+)\[([%[:alnum:]_%]+)\](?:\[([%[:alnum:]_%]+)\])?"
        SplitString/E=regExp source, wName, rowString, colString
        if (V_flag >= 2)
            WAVE/Z controllingWave = $(wName)
            if (WaveExists(controllingWave))
                if (V_flag >= 3)
                    // Determine what column number to use.
                    if (numtype(str2num(colString)) == 0)
                        colNum = str2num(colString)
                    else
                        colNum = FindDimLabel(controllingWave, 0, colString[1, strlen(colString) - 1])
                    endif
                endif
                // Determine what row number to use.
                if (numtype(str2num(rowString)) == 0)
                    rowNum = str2num(rowString)
                else
                    rowNum = FindDimLabel(controllingWave, 0, rowString[1, strlen(rowString) - 1])
                endif
                
                // Set the value of the wave to the specified value.
                if (numtype(colNum) != 0 && rowNum >= 0)
                    // Only use a row number.
                    controllingWave[rowNum] = valueVar
                    result = 1              
                elseif (numtype(colNum) == 0 && colNum >= 0)
                    // Use a row and a column.
                    controllingWave[rowNum][colNum] = valueVar
                    result = 1                  
                else
                    result = 0
                endif
            else
                result = 0
            endif
        else
            result = 0
        endif
    endif
    SetDataFolder currentDF
    return result           
End
 
Function Button_DigitalInputMenu(ba) : ButtonControl
    STRUCT WMButtonAction &ba
 
    switch( ba.eventCode )
        case 2: // mouse up
            String menuChoices = "Control bits 0-7;Control bits 8-16;Control all bits;Monitor digital inputs;"
            Variable controlSelection
            controlSelection = str2num(GetUserData(ba.win, "", "controlSelection"))
            if (numtype(controlSelection) != 0 || controlSelection <1 || controlSelection > 4)
                controlSelection = 4
            endif
 
            // Add a check mark to the appropriate menu item to indicate what is currently selected.
            String selectedMenuString = StringFromList(controlSelection - 1, menuChoices, ";")
 
            menuChoices = RemoveListItem(controlSelection - 1, menuChoices, ";")
            menuChoices = AddListItem("\\M1" + selectedMenuString + "!" + num2char(18), menuChoices, ";", controlSelection - 1)
            PopupContextualMenu menuChoices
            if (V_flag >= 1)        // User made a selection
                SetWindow $(ba.win) userdata(controlSelection)=num2str(V_flag)
                // Redraw the panel based on the selection
                BuildDigInputPanel(ba.win, V_flag)
            endif
            return 1                
            break
    endswitch
    return 0
End
 
//**
// Build (or rebuild) the Digital Input panel.
//
// @param panelName
//  Name of the Digital input panel.
// @param type
//  Type of panel to create.  The possible options are:
//      Value           Description
//      1               Control bits 0-7
//      2               Control bits 8-15
//      3               Control all bits (0-15)
//      4               Monitor digital inputs (read only)
// @param channelNum
//  [OPTIONAL] Channel number that panel will control.  If this is not given,
//  an attempt will be made to pull this information from the panel's "channelNum" named
//  user data.  If that fails, then the function will return silently.
// @param x0
//  [OPTIONAL] X coordinate of upper left corner of panel, in pixels.  Default is 0.
// @param y0
//  [OPTIONAL] Y coordinate of upper left corner of panel, in pixels.  Default is 0.
//*
Function BuildDigInputPanel(panelName, type, [channelNum, x0, y0])
    String panelName
    Variable type
    Variable channelNum
    Variable x0
    Variable y0
    
    String wName
    if (ParamIsDefault(channelNum))
        channelNum = str2num(GetUserData(panelName, "", "channelNum"))
        if (numtype(channelNum) != 0)
            return 0
        endif
    endif
    sprintf wName, "root:gwDigitalInputChan%d", channelNum
 
    
    WAVE/Z gwDigitalInputChan = $(wName)
    if (!WaveExists(gwDigitalInputChan))
        return 0
    endif
    
    if (ParamIsDefault(x0))
        x0 = 50
    endif
    if (ParamIsDefault(y0))
        y0 = 50
    endif
 
    Variable buttonWidth = 20
    Variable buttonHeight = 20
    Variable menuButtonWidth = 15
    Variable spacing = buttonWidth + 6      // Distance from left edge of one button to left edge of next button
    Variable numButtons
    Variable firstButtonNumber
    
    numButtons = (type == 1 || type == 2) ? 8 : 16
    firstButtonNumber = (type == 2) ? 8 : 0
    
    Variable totalWidth, totalHeight
    Variable buttonTop = 3
    Variable currentLeftPos
    totalHeight = buttonTop + buttonHeight + 3 + 35 + 3 // top spacing + buttonHeight + middle spacing + number height + bottom spacing
    totalWidth = (spacing/1.25) + ((numButtons - 1) * spacing) + (1.25 * spacing) + (spacing/4) // left spacing + width of buttons and spacing between them + between buttons and menu button spacing + right side spacing
    
    if (WinType(panelName))
        // Store upper left coordinates of panel so when recreated it doesn't move
        GetWindow $(panelName) wsize
        x0 = V_left * ScreenResolution / 72
        y0 = V_top * ScreenResolution / 72
        KillWindow $(panelName)
    endif
    NewPanel/K=1/FLT=1/W=(x0, y0, x0 + totalWidth, y0 + totalHeight)/N=$(panelName) as "Digital Input"
 
    // Write channel number into named user data.
    SetWindow $(panelName), userdata(channelNum) = num2istr(channelNum)
    
    // Determine if buttons should be drawn as circular LEDs (for monitoring inputs) or square LEDs (for controlling inputs)
    Variable buttonMode
    buttonMode = (type < 4) ? 2 : 1
 
    // Draw menu button
    currentLeftPos = trunc(totalWidth - (spacing/4) - menuButtonWidth)
    Button buttonMenu win=$(panelName),pos={currentLeftPos,buttonTop},size={menuButtonWidth,buttonHeight},proc=Button_DigitalInputMenu,title="\\W623"
    currentLeftPos -= spacing
    
    // Draw the rest of the buttons and label them
    Variable currentBitNum
    String currentButtonName, currentValueSource, currentBitName
    For (currentBitNum = firstButtonNumber; currentBitNum < numButtons + firstButtonNumber; currentBitNum += 1)
        currentButtonName = "toggle" + num2str(currentBitNum)
        currentBitName = GetDimLabel(gwDigitalInputChan, 0, currentBitNum)
        // Don't display the "SW_" part of the name, if that's how the bit is named
        if (cmpstr(currentBitName[0,2], "SW_") == 0)
            currentBitName = currentBitName[3, strlen(currentBitName) - 1]
        endif
        
        sprintf currentValueSource, "root:wSwitches%d[%d]", channelNum, currentBitNum
        ValDisplay $(currentButtonName) win=$(panelName),pos={currentLeftPos,buttonTop},size={buttonWidth, buttonHeight}
        ValDisplay $(currentButtonName) win=$(panelName),limits={-50,1,0},barmisc={0,0},bodyWidth= 20,mode= buttonMode,highColor= (0,52224,0),zeroColor= (56576,56576,56576)
        ValDisplay $(currentButtonName) win=$(panelName),value= #currentValueSource
        ValDisplay $(currentButtonName) win=$(panelName),help={currentBitName}
        
        // Display bit number under button.
        SetDrawEnv/W=$(panelName) textxjust= 1,textyjust= 2, fsize = 12
        DrawText/W=$(panelName) trunc((currentLeftPos + (buttonWidth / 2))), (buttonTop + buttonHeight + 3), num2str(currentBitNum)
        
        // Display the name of the bit.
        SetDrawEnv textxjust= 1,textyjust= 2,fsize=10
        DrawText/W=$(panelName) trunc((currentLeftPos + (buttonWidth / 2))), (buttonTop + buttonHeight + 17 + (12 * mod(currentBitNum, 2))), currentBitName
        
        // Set the proper frame for the button.
        Switch (type)
            Case 1:     // Control bits 0-7
            Case 2:     // Control bits 8-15
            Case 3:     // Control all bits
                ControlInfo/W=$(panelName) $(currentButtonName)
                if (V_value)        // Set frame to raised
                    ValDisplay $(currentButtonName) win=$(panelName),frame=1
                else                // Set frame to indented
                    ValDisplay $(currentButtonName) win=$(panelName),frame=4
                endif
                break
 
            default:        // Monitor digital inputs, so set to no frame.
                ValDisplay $(currentButtonName) win=$(panelName),frame=0
        EndSwitch
        currentLeftPos -= spacing
    EndFor
    
    // Only set window hook if we're not monitoring values
    if (type < 4 && type > 0)
        SetWindow kwTopWin,hook(buttonPress)=DigInputButtonPress
    else
        SetWindow kwTopWin, hook(buttonPress)=$""
    endif
    SetWindow $(panelName),userdata(controlSelection)=  num2str(type)
    if (strlen(FunctionInfo("AClampAcquisition_WindowHook")) > 0)
        SetWindow $(panelName), hook(AClampAcquisition_WindowHook)=AClampAcquisition_WindowHook
    endif
    SetActiveSubwindow _endfloat_
End