using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using System.IO;

using CodeProject.Dialog;

using System.Drawing.Imaging;

namespace SharpDisplayManager

{

    public partial class MainForm : Form

    {

        DateTime LastTickTime;

        Display iDisplay;

        System.Drawing.Bitmap iBmp;

        bool iCreateBitmap; //Workaround render to bitmap issues when minimized

        public MainForm()

        {

            LastTickTime = DateTime.Now;

            iDisplay = new Display();

            InitializeComponent();

            UpdateStatus();

            //Load settings

            marqueeLabelTop.Font = Properties.Settings.Default.DisplayFont;

            marqueeLabelBottom.Font = Properties.Settings.Default.DisplayFont;

            checkBoxShowBorders.Checked = Properties.Settings.Default.DisplayShowBorders;

            checkBoxConnectOnStartup.Checked = Properties.Settings.Default.DisplayConnectOnStartup;

            checkBoxReverseScreen.Checked = Properties.Settings.Default.DisplayReverseScreen;

            //

            tableLayoutPanel.CellBorderStyle = (checkBoxShowBorders.Checked ? TableLayoutPanelCellBorderStyle.Single : TableLayoutPanelCellBorderStyle.None);

            //We have a bug when drawing minimized and reusing our bitmap

            iBmp = new System.Drawing.Bitmap(tableLayoutPanel.Width, tableLayoutPanel.Height, PixelFormat.Format32bppArgb);

            iCreateBitmap = false;

        }

        private void MainForm_Load(object sender, EventArgs e)

        {

            if (Properties.Settings.Default.DisplayConnectOnStartup)

            {

                iDisplay.Open();

                UpdateStatus();

            }

        }

        private void buttonFont_Click(object sender, EventArgs e)

        {

            //fontDialog.ShowColor = true;

            //fontDialog.ShowApply = true;

            fontDialog.ShowEffects = true;

            fontDialog.Font = marqueeLabelTop.Font;

            //fontDialog.ShowHelp = true;

            //fontDlg.MaxSize = 40;

            //fontDlg.MinSize = 22;

            //fontDialog.Parent = this;

            //fontDialog.StartPosition = FormStartPosition.CenterParent;

            //DlgBox.ShowDialog(fontDialog);

            //if (fontDialog.ShowDialog(this) != DialogResult.Cancel)

            if (DlgBox.ShowDialog(fontDialog) != DialogResult.Cancel)

            {

                //MsgBox.Show("MessageBox MsgBox", "MsgBox caption");

                //MessageBox.Show("Ok");

                marqueeLabelTop.Font = fontDialog.Font;

                marqueeLabelBottom.Font = fontDialog.Font;

                Properties.Settings.Default.DisplayFont = fontDialog.Font;

                Properties.Settings.Default.Save();

                //label1.Font = fontDlg.Font;

                //textBox1.BackColor = fontDlg.Color;

                //label1.ForeColor = fontDlg.Color;

            }

        }

        private void buttonCapture_Click(object sender, EventArgs e)

        {

            System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(tableLayoutPanel.Width, tableLayoutPanel.Height);

            tableLayoutPanel.DrawToBitmap(bmp, tableLayoutPanel.ClientRectangle);

            //Bitmap bmpToSave = new Bitmap(bmp);

            bmp.Save("D:\\capture.png");

            /*

            string outputFileName = "d:\\capture.png";

            using (MemoryStream memory = new MemoryStream())

            {

                using (FileStream fs = new FileStream(outputFileName, FileMode.OpenOrCreate, FileAccess.ReadWrite))

                {

                    bmp.Save(memory, System.Drawing.Imaging.ImageFormat.Png);

                    byte[] bytes = memory.ToArray();

                    fs.Write(bytes, 0, bytes.Length);

                }

            }

             */

        }

        private void CheckForRequestResults()

        {

            if (iDisplay.IsRequestPending())

            {

                switch (iDisplay.AttemptRequestCompletion())

                {

                    case Display.TMiniDisplayRequest.EMiniDisplayRequestPowerSupplyStatus:

                        if (iDisplay.PowerSupplyStatus())

                        {

                            toolStripStatusLabelPower.Text = "ON";

                        }

                        else

                        {

                            toolStripStatusLabelPower.Text = "OFF";

                        }

                        //Issue next request then

                        iDisplay.RequestDeviceId();

                        break;

                    case Display.TMiniDisplayRequest.EMiniDisplayRequestDeviceId:

                        toolStripStatusLabelConnect.Text += " - " + iDisplay.DeviceId();

                        //Issue next request then

                        iDisplay.RequestFirmwareRevision();

                        break;

                    case Display.TMiniDisplayRequest.EMiniDisplayRequestFirmwareRevision:

                        toolStripStatusLabelConnect.Text += " v" + iDisplay.FirmwareRevision();

                        //No more request to issue

                        break;

                }

            }

        }

        public delegate int CoordinateTranslationDelegate(System.Drawing.Bitmap aBmp, int aInt);

        public static int ScreenReversedX(System.Drawing.Bitmap aBmp, int aX)

        {

            return aBmp.Width - aX - 1;

        }

        public int ScreenReversedY(System.Drawing.Bitmap aBmp, int aY)

        {

            return iBmp.Height - aY - 1;

        }

        public int ScreenX(System.Drawing.Bitmap aBmp, int aX)

        {

            return aX;

        }

        public int ScreenY(System.Drawing.Bitmap aBmp, int aY)

        {

            return aY;

        }

        //This is our timer tick responsible to perform our render

        private void timer_Tick(object sender, EventArgs e)

        {

            //Update our animations

            DateTime NewTickTime = DateTime.Now;

            marqueeLabelTop.UpdateAnimation(LastTickTime, NewTickTime);

            marqueeLabelBottom.UpdateAnimation(LastTickTime, NewTickTime);

            //Update our display

            if (iDisplay.IsOpen())

            {

                CheckForRequestResults();

                //Draw to bitmap                

                if (iCreateBitmap)

                {

                    iBmp = new System.Drawing.Bitmap(tableLayoutPanel.Width, tableLayoutPanel.Height, PixelFormat.Format32bppArgb);

                }

                tableLayoutPanel.DrawToBitmap(iBmp, tableLayoutPanel.ClientRectangle);

                //iBmp.Save("D:\\capture.png");

                //Select proper coordinate translation functions

                //We used delegate/function pointer to support reverse screen without doing an extra test on each pixels

                CoordinateTranslationDelegate screenX;

                CoordinateTranslationDelegate screenY;

                if (Properties.Settings.Default.DisplayReverseScreen)

                {

                    screenX = ScreenReversedX;

                    screenY = ScreenReversedY;

                }

                else

                {

                    screenX = ScreenX;

                    screenY = ScreenY;

                }

                //Send it to our display

                for (int i = 0; i < iBmp.Width; i++)

                {

                    for (int j = 0; j < iBmp.Height; j++)

                    {

                        unchecked

                        {

                            uint color = (uint)iBmp.GetPixel(i, j).ToArgb();

                            //For some reason when the app is minimized in the task bar only the alpha of our color is set.

                            //Thus that strange test for rendering to work both when the app is in the task bar and when it isn't.

                            iDisplay.SetPixel(screenX(iBmp, i), screenY(iBmp, j), Convert.ToInt32(!(color != 0xFF000000)));

                        }

                    }

                }

                iDisplay.SwapBuffers();

            }

            //Compute instant FPS

            toolStripStatusLabelFps.Text = (1.0/NewTickTime.Subtract(LastTickTime).TotalSeconds).ToString("F0") + " FPS";

            LastTickTime = NewTickTime;

        }

        private void buttonOpen_Click(object sender, EventArgs e)

        {

            if (iDisplay.Open())

            {

                UpdateStatus();

                iDisplay.RequestPowerSupplyStatus();

            }

            else

            {

                UpdateStatus();

                toolStripStatusLabelConnect.Text = "Connection error";

            }

        }

        private void buttonClose_Click(object sender, EventArgs e)

        {

            iDisplay.Close();

            UpdateStatus();

        }

        private void buttonClear_Click(object sender, EventArgs e)

        {

            iDisplay.Clear();

            iDisplay.SwapBuffers();

        }

        private void buttonFill_Click(object sender, EventArgs e)

        {

            iDisplay.Fill();

            iDisplay.SwapBuffers();

        }

        private void trackBarBrightness_Scroll(object sender, EventArgs e)

        {

            Properties.Settings.Default.DisplayBrightness = trackBarBrightness.Value;

            Properties.Settings.Default.Save();

            iDisplay.SetBrightness(trackBarBrightness.Value);

        }

        private void UpdateStatus()

        {

            if (iDisplay.IsOpen())

            {

                buttonFill.Enabled = true;

                buttonClear.Enabled = true;

                buttonOpen.Enabled = false;

                buttonClose.Enabled = true;

                trackBarBrightness.Enabled = true;

                trackBarBrightness.Minimum = iDisplay.MinBrightness();

                trackBarBrightness.Maximum = iDisplay.MaxBrightness();

                trackBarBrightness.Value = Properties.Settings.Default.DisplayBrightness;

                trackBarBrightness.LargeChange = Math.Max(1,(iDisplay.MaxBrightness() - iDisplay.MinBrightness())/5);

                trackBarBrightness.SmallChange = 1;

                iDisplay.SetBrightness(Properties.Settings.Default.DisplayBrightness);

                toolStripStatusLabelConnect.Text = "Connected - " + iDisplay.Vendor() + " - " + iDisplay.Product();

                //+ " - " + iDisplay.SerialNumber();

            }

            else

            {

                buttonFill.Enabled = false;

                buttonClear.Enabled = false;

                buttonOpen.Enabled = true;

                buttonClose.Enabled = false;

                trackBarBrightness.Enabled = false;

                toolStripStatusLabelConnect.Text = "Disconnected";

            }

        }

        private void checkBoxShowBorders_CheckedChanged(object sender, EventArgs e)

        {

            //Save our show borders setting

            tableLayoutPanel.CellBorderStyle = (checkBoxShowBorders.Checked ? TableLayoutPanelCellBorderStyle.Single : TableLayoutPanelCellBorderStyle.None);

            Properties.Settings.Default.DisplayShowBorders = checkBoxShowBorders.Checked;

            Properties.Settings.Default.Save();

        }

        private void checkBoxConnectOnStartup_CheckedChanged(object sender, EventArgs e)

        {

            //Save our connect on startup setting

            Properties.Settings.Default.DisplayConnectOnStartup = checkBoxConnectOnStartup.Checked;

            Properties.Settings.Default.Save();

        }

        private void checkBoxReverseScreen_CheckedChanged(object sender, EventArgs e)

        {

            //Save our reverse screen setting

            Properties.Settings.Default.DisplayReverseScreen = checkBoxReverseScreen.Checked;

            Properties.Settings.Default.Save();

        }

        private void MainForm_Resize(object sender, EventArgs e)

        {

            if (WindowState == FormWindowState.Minimized)

            {

                // Do some stuff

                //iBmp = new System.Drawing.Bitmap(tableLayoutPanel.Width, tableLayoutPanel.Height, PixelFormat.Format32bppArgb);

                iCreateBitmap = true;

            }

        }

    }

}