using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

using AIOUSBNet;  // the namespace exposes the AIOUSB Class interface 

// You must also add a reference to the AIOUSBnet.dll in the project settings


namespace Sample1
{
    public partial class Form1 : Form
    {
        // One and only Device Index:
        public UInt32 DeviceIndex;

        // Interval Timer fou GUI update:
        // (Note: A Windows Forms timer designed for single threaded environments not a System Timer 55 ms min res)
        static System.Windows.Forms.Timer myTimer = new System.Windows.Forms.Timer();

        // Array of controls for GUI updates:
        public ProgressBar[] VoltProgress = new ProgressBar[numAnalogOutputs];
        public Label[] VoltLabel = new Label[numAnalogOutputs];
        public ProgressBar[] CountProgress = new ProgressBar[numAnalogOutputs];
        public Label[] CountLabel = new Label[numAnalogOutputs];

        // Num channels we will be using:
        public const int numAnalogOutputs = 2;

        public Form1()
        {
            InitializeComponent();

            // Arrays of the controls:
            VoltProgress[0] = progressBar1;
            VoltProgress[1] = progressBar2;
           
            VoltLabel[0] = lblVolt0;
            VoltLabel[1] = lblVolt1;

            CountProgress[0] = progressBar3;
            CountProgress[1] = progressBar4;

            CountLabel[0] = lblCount0;
            CountLabel[1] = lblCount1;
        }
        
        private void Form1_Load(object sender, EventArgs e)
        {
            // Called before Form is displayed Initialize resources:
            
            // Initialize default Device Only:
            DeviceIndex = AIOUSB.diOnly; 
           
            // Device data:
            UInt32 Status;
            UInt32 PID = 0;
            UInt32 NameSize = 256;
            string strName = "name";
            UInt32 DIOBytes = 0;
            UInt32 Counters = 0;
            UInt64 SerNum;

            UInt32 ERROR_SUCCESS = 0;
            bool deviceIndexValid = false;

            // Get The Device Information test for valid device found:
            Status = AIOUSB.QueryDeviceInfo(DeviceIndex, out PID, out NameSize, out strName, out DIOBytes, out Counters);

            //--------------------------------------
            // device was detected 
            // verify PID - USB-AO16-xxx       - 0x807x
            //	           USB-AO16-16  Rev A - 0x8060
            //--------------------------------------            
            if ( (Status == 0) && ((PID & 0xFFF0) == 0x8070) )
            {
                deviceIndexValid = true;
            }
            else
            {
                // If Only device is not valid then Launch connect device dialog box:
                // New parent aware subform:
                FormDetect DetectSubForm = new FormDetect(this);
                DetectSubForm.ShowDialog();

                Status = AIOUSB.QueryDeviceInfo(DeviceIndex, out PID, out NameSize, out strName, out DIOBytes, out Counters);
                if (Status == ERROR_SUCCESS && PID >= 0x8140 && PID <= 0x815D)
                    deviceIndexValid = true;
            }

            if (!deviceIndexValid)
            {
                // No valid device found should exit
                // this.Close();
            }

            // Check device status:
            Status = AIOUSB.ClearDevices();  // Cleans up any orphaned indexes
            Status = AIOUSB.GetDevices();
            Status = AIOUSB.GetDeviceSerialNumber(DeviceIndex, out SerNum);

            
            // Init for this board:
            
            //Unsleep the DAC/ADC reference.
            Status = AIOUSB.DACSetBoardRange(DeviceIndex, 2);
                                    

            // Add the event and the event handler for the method that will 
            // process the timer event to the timer:
            myTimer.Tick += new EventHandler(TimerEventProcessor);

            // Set the timer interval in miliseconds and start 55ms min resolution:
            myTimer.Interval = 100;
            //myTimer.Start();
        }
        
        private String FormatVolt(int Count)
        {
            string formatString;
            formatString = String.Format("{0,3:X}", Count);
            return (formatString);
        }
        
        private void btnDevice_Click_1(object sender, EventArgs e)
        {
            // Launch connect device dialog box
            // Switch between multiple devices or reconnect

            // New parent aware subform:
            FormDetect DetectSubForm = new FormDetect(this);
            DetectSubForm.ShowDialog();
        }
        
        private void btnExecute_Click(object sender, EventArgs e)
        {            	            
            btnExecute.Enabled = false;
            btnStop.Enabled = true;
            
            // Restart timer thread:
            myTimer.Enabled = true;
        }
        
        private void btnStop_Click(object sender, EventArgs e)
        {
            // Stop the timer thread:
            myTimer.Stop();

            btnExecute.Enabled = true;
            btnStop.Enabled = false;
        }

        private void TimerEventProcessor(Object myObject, EventArgs myEventArgs)
        {
            // This is the method that runs when the timer event is raised:
            myTimer.Stop();

            UpdateGUIState();

            myTimer.Enabled = true;
        }

        private void UpdateGUIState()
        {
            // Read data and set GUI state:
            UInt32 Status;
            double[] readVal = new double[2];
            ushort[] readCount = new ushort[2];

            Status = AIOUSB.ADC_GetScanV( DeviceIndex, readVal ); // Voltage
            Status = AIOUSB.ADC_GetScan(DeviceIndex, readCount); // Voltage

            int ERROR_SUCCESS = 0;
            if (Status != ERROR_SUCCESS)
            {
                MessageBox.Show("GetScanV() Error!!!");
            }
            else
            {
                for (int count = 0; count < 2; ++count)
                {
                    VoltProgress[count].Value = (int)readVal[count];
                    
                    string formatString = "Ch {0}: {1,8:F4} V";
                    string LabelString = String.Format(formatString, count, readVal[count]);
                    VoltLabel[count].Text = LabelString;

                    CountProgress[count].Value = readCount[count];

                    string formatString2 = "Ch {0}: {1,8:G}";
                    LabelString = String.Format(formatString2, count, readCount[count]);
                    CountLabel[count].Text = LabelString;
                }
            }

        }


    }
}