using System;
using System.Drawing;
using System.Windows.Forms;
using System.Drawing.Printing;
using FastReport.Utils;

namespace FastReport.Forms
{
    internal partial class PrinterSetupForm : BaseDialogForm
    {
        private Report report;
        private bool printDialog;
        private bool collapsed;
        private PrinterSettings printerSettings;

        private bool Collapsed
        {
            get { return collapsed; }
            set
            {
                collapsed = value;
                if (value)
                {
                    gbOther.Visible = false;
                    gbPrintMode.Visible = false;
                    btnMoreOptions.Text = Res.Get("Buttons,MoreOptions");
                    btnOk.Top = gbPageRange.Bottom + (int)(15);
                    btnCancel.Top = btnOk.Top;
                    btnMoreOptions.Top = btnOk.Top;
                }
                else
                {
                    gbOther.Visible = true;
                    gbPrintMode.Visible = true;
                    btnMoreOptions.Text = Res.Get("Buttons,LessOptions");
                    btnOk.Top = gbOther.Bottom + (int)(15);
                    btnCancel.Top = btnOk.Top;
                    btnMoreOptions.Top = btnOk.Top;
                }
                ClientSize = new Size(ClientSize.Width, btnOk.Bottom + (int)(10));
            }
        }

        public Report Report
        {
            get { return report; }
            set
            {
                report = value;
                UpdateControls();
            }
        }

        public bool PrintDialog
        {
            get { return printDialog; }
            set
            {
                printDialog = value;
                if (value)
                {
                    MyRes res = new MyRes("Forms,PrinterSetup");
                    Text = res.Get("");
                    cbSavePrinter.Visible = false;
                    rbCurrent.Enabled = true;
                    btnOk.Text = res.Get("Print");
                }
            }
        }

        public PrinterSettings PrinterSettings
        {
            get { return printerSettings; }
            set { printerSettings = value; }
        }

        private bool Equal(float a, float b)
        {
            return Math.Abs(a - b) < 2;
        }

        private bool PaperSizeEqual(PaperSize ps, float width, float height, int rawKind)
        {
            float psWidth = ps.Width / 100f * 25.4f;
            float psHeight = ps.Height / 100f * 25.4f;

            bool sizeEqual = (Equal(psWidth, width) && Equal(psHeight, height)) ||
              (Equal(psWidth, height) && Equal(psHeight, width));
            if (rawKind == 0)
                return sizeEqual;
            return sizeEqual && ps.RawKind == rawKind;
        }

        private void UpdateControls()
        {
            MyRes res = new MyRes("Forms,PrinterSetup");

            // Printer
            string savePrinter = printerSettings.PrinterName;
            printerSettings.PrinterName = Report.PrintSettings.Printer;
            if (!printerSettings.IsValid)
                printerSettings.PrinterName = savePrinter;

            try
            {
                foreach (string printer in PrinterSettings.InstalledPrinters)
                {
                    cbxPrinter.Items.Add(printer);
                }
            }
            catch (System.ComponentModel.Win32Exception) { }

            cbxPrinter.SelectedItem = printerSettings.PrinterName;
            cbSavePrinter.Checked = Report.PrintSettings.SavePrinterWithReport;
            cbPrintToFile.Checked = Report.PrintSettings.PrintToFile;

            // Page range
            rbAll.Checked = Report.PrintSettings.PageRange == PageRange.All;
            rbCurrent.Checked = Report.PrintSettings.PageRange == PageRange.Current;
            rbNumbers.Checked = Report.PrintSettings.PageRange == PageRange.PageNumbers;
            tbNumbers.Text = Report.PrintSettings.PageNumbers;

            // Copies
            udCount.Value = Report.PrintSettings.Copies;
            cbCollate.Checked = Report.PrintSettings.Collate;

            // Other
            cbxOddEven.Items.Add(res.Get("AllPages"));
            cbxOddEven.Items.Add(res.Get("OddPages"));
            cbxOddEven.Items.Add(res.Get("EvenPages"));
            cbxOddEven.SelectedIndex = (int)Report.PrintSettings.PrintPages;

            cbxOrder.Items.Add(res.Get("OrderDirect"));
            cbxOrder.Items.Add(res.Get("OrderReverse"));
            cbxOrder.SelectedIndex = Report.PrintSettings.Reverse ? 1 : 0;

            cbxDuplex.Items.Add(Res.Get("Forms,PageSetup,DupDefault"));
            cbxDuplex.Items.Add(Res.Get("Forms,PageSetup,DupSimplex"));
            cbxDuplex.Items.Add(Res.Get("Forms,PageSetup,DupVertical"));
            cbxDuplex.Items.Add(Res.Get("Forms,PageSetup,DupHorizontal"));
            cbxDuplex.SelectedIndex = Report.PrintSettings.Duplex == Duplex.Default ? 0 : (int)Report.PrintSettings.Duplex;

            // Print mode
            cbxPrintMode.Items.Add(res.Get("PrintModeDefault"));
            cbxPrintMode.Items.Add(res.Get("PrintModeSplit"));
            cbxPrintMode.Items.Add(res.Get("PrintModeScale"));
            cbxPrintMode.SelectedIndex = (int)Report.PrintSettings.PrintMode;

            cbxPagesOnSheet.Items.Add(res.Get("PagesOnSheet1"));
            cbxPagesOnSheet.Items.Add(res.Get("PagesOnSheet2"));
            cbxPagesOnSheet.Items.Add(res.Get("PagesOnSheet4"));
            cbxPagesOnSheet.Items.Add(res.Get("PagesOnSheet8"));
            cbxPagesOnSheet.SelectedIndex = (int)Report.PrintSettings.PagesOnSheet;
        }

        private void UpdatePrintSettings()
        {
            PrintSettings ps = Report.PrintSettings;

            // Printer
            ps.Printer = (string)cbxPrinter.SelectedItem;
            if (cbSavePrinter.Visible)
                ps.SavePrinterWithReport = cbSavePrinter.Checked;
            ps.PrintToFile = cbPrintToFile.Checked && Config.PreviewSettings.AllowPrintToFile;
            if (PrintDialog && ps.PrintToFile)
            {
                using (SaveFileDialog dialog = new SaveFileDialog())
                {
                    dialog.Filter = Res.Get("FileFilters,PrnFile");
                    dialog.DefaultExt = "prn";
                    if (dialog.ShowDialog() == DialogResult.OK)
                        ps.PrintToFileName = dialog.FileName;
                    else
                        DialogResult = DialogResult.Cancel;
                }
            }

            // Page range
            if (rbAll.Checked)
                ps.PageRange = PageRange.All;
            else if (rbCurrent.Checked)
                ps.PageRange = PageRange.Current;
            else
                ps.PageRange = PageRange.PageNumbers;
            ps.PageNumbers = tbNumbers.Text;

            // Copies
            ps.Copies = (int)udCount.Value;
            ps.Collate = cbCollate.Checked;

            // Other
            ps.PrintPages = (PrintPages)cbxOddEven.SelectedIndex;
            ps.Reverse = cbxOrder.SelectedIndex == 1;
            ps.Duplex = (Duplex)(cbxDuplex.SelectedIndex == 0 ? -1 : cbxDuplex.SelectedIndex);
            if (cbxSource.SelectedIndex != -1)
                ps.PaperSource = printerSettings.PaperSources[cbxSource.SelectedIndex].RawKind;

            // Print mode
            ps.PrintMode = (PrintMode)cbxPrintMode.SelectedIndex;
            if (ps.PrintMode != PrintMode.Default)
            {
                PaperSize sz = printerSettings.PaperSizes[cbxPrintOnSheet.SelectedIndex];
                ps.PrintOnSheetWidth = sz.Width / 100f * 25.4f;
                ps.PrintOnSheetHeight = sz.Height / 100f * 25.4f;
                ps.PrintOnSheetRawPaperSize = sz.RawKind;
                ps.PagesOnSheet = ps.PrintMode == PrintMode.Scale ?
                  (PagesOnSheet)cbxPagesOnSheet.SelectedIndex : PagesOnSheet.One;
            }
            else
            {
                ps.PrintOnSheetWidth = 210;
                ps.PrintOnSheetHeight = 297;
                ps.PrintOnSheetRawPaperSize = 0;
                ps.PagesOnSheet = PagesOnSheet.One;
            }
        }

        private void cbxPrinter_DrawItem(object sender, DrawItemEventArgs e)
        {
            e.DrawBackground();
            if (e.Index >= 0)
            {
                cbxPrinter.DrawImageAndText(e, GetImage(88), (string)cbxPrinter.Items[e.Index]);
            }
        }

        private void btnMoreOptions_Click(object sender, EventArgs e)
        {
            Collapsed = !Collapsed;
        }

        private void btnSettings_Click(object sender, EventArgs e)
        {
            PrinterUtils.ShowPropertiesDialog(printerSettings);
            cbxDuplex.SelectedIndex = printerSettings.Duplex == Duplex.Default ? 0 : (int)printerSettings.Duplex;
        }

        private void pnCollate_Paint(object sender, PaintEventArgs e)
        {
            string resName = cbCollate.Checked ? "Images.Collate1.png" : "Images.Collate2.png";
            using (Bitmap bmp = GetImage(resName))
            {
                e.Graphics.DrawImage(bmp, 0, 0);
            }
        }

        private void cbCollate_CheckedChanged(object sender, EventArgs e)
        {
            pnCollate.Refresh();
        }

        private void cbxPrintMode_DrawItem(object sender, DrawItemEventArgs e)
        {
            e.DrawBackground();
            if (e.Index >= 0)
            {
                string[] resNames = new string[] { "Images.DefaultMode.png", "Images.SplitMode.png", "Images.ScaleMode.png" };
                using (Bitmap bmp = GetImage(resNames[e.Index]))
                {
                    cbxPrintMode.DrawImageAndText(e, bmp, (string)cbxPrintMode.Items[e.Index]);
                }
            }
        }

        private void cbxPrinter_SelectedIndexChanged(object sender, EventArgs e)
        {
            printerSettings.PrinterName = (string)cbxPrinter.SelectedItem;

            // paper
            int indexOfDefaultPaper = -1;
            try
            {
                PaperSize defaultPaper = printerSettings.DefaultPageSettings.PaperSize;

                cbxPrintOnSheet.Items.Clear();
                foreach (PaperSize ps in printerSettings.PaperSizes)
                {
                    cbxPrintOnSheet.Items.Add(ps.PaperName);
                    if (ps == defaultPaper)
                        indexOfDefaultPaper = cbxPrintOnSheet.Items.Count - 1;
                }
                // probe PaperWidth, PaperHeight, RawPaperSize
                if (Report.PrintSettings.PrintOnSheetRawPaperSize != 0)
                {
                    foreach (PaperSize ps in printerSettings.PaperSizes)
                    {
                        if (cbxPrintOnSheet.SelectedIndex == -1 &&
                            PaperSizeEqual(ps, Report.PrintSettings.PrintOnSheetWidth,
                            Report.PrintSettings.PrintOnSheetHeight, Report.PrintSettings.PrintOnSheetRawPaperSize))
                            cbxPrintOnSheet.SelectedIndex = cbxPrintOnSheet.Items.IndexOf(ps.PaperName);
                    }
                }
                // probe PaperWidth, PaperHeight only
                if (cbxPrintOnSheet.SelectedIndex == -1)
                {
                    foreach (PaperSize ps in printerSettings.PaperSizes)
                    {
                        if (cbxPrintOnSheet.SelectedIndex == -1 &&
                            PaperSizeEqual(ps, Report.PrintSettings.PrintOnSheetWidth, Report.PrintSettings.PrintOnSheetHeight, 0))
                            cbxPrintOnSheet.SelectedIndex = cbxPrintOnSheet.Items.IndexOf(ps.PaperName);
                    }
                }
                if (cbxPrintOnSheet.SelectedIndex == -1 && indexOfDefaultPaper < cbxPrintOnSheet.Items.Count)
                    cbxPrintOnSheet.SelectedIndex = indexOfDefaultPaper;


                // paper source
                cbxSource.Items.Clear();
                int indexOfAutofeed = -1;
                foreach (PaperSource ps in printerSettings.PaperSources)
                {
                    cbxSource.Items.Add(ps.SourceName);
                    if (ps.Kind == PaperSourceKind.AutomaticFeed)
                        indexOfAutofeed = cbxSource.Items.Count - 1;
                    if (Report.PrintSettings.PaperSource == ps.RawKind)
                        cbxSource.SelectedIndex = cbxSource.Items.Count - 1;
                }
                if (cbxSource.SelectedIndex == -1 && indexOfAutofeed < cbxSource.Items.Count)
                    cbxSource.SelectedIndex = indexOfAutofeed;
            }
            catch
            {
                //
            }
        }

        private void cbxPrintMode_SelectedIndexChanged(object sender, EventArgs e)
        {
            bool enabled = cbxPrintMode.SelectedIndex != 0;
            bool enabled1 = cbxPrintMode.SelectedIndex == 2;
            lblPrintOnSheet.Enabled = enabled;
            cbxPrintOnSheet.Enabled = enabled;
            lblPagesOnSheet.Enabled = enabled1;
            cbxPagesOnSheet.Enabled = enabled1;
        }

        private void tbNumbers_KeyPress(object sender, KeyPressEventArgs e)
        {
            rbNumbers.Checked = true;
        }

        private void rbCurrent_CheckedChanged(object sender, EventArgs e)
        {
            if ((sender as RadioButton).Checked)
                tbNumbers.Text = "";
        }

        private void PrinterSetupForm_FormClosed(object sender, FormClosedEventArgs e)
        {
            if (DialogResult == DialogResult.OK)
                UpdatePrintSettings();
        }

        private void PrinterSetupForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (DialogResult == DialogResult.OK)
            {
                string s = tbNumbers.Text;
                foreach (char c in s)
                {
                    if (!(c == ' ' || c == ',' || c == '-' || (c >= '0' && c <= '9')))
                    {
                        FRMessageBox.Error(Res.Get("Forms,PrinterSetup,Error") + "\r\n" +
                          Res.Get("Forms,PrinterSetup,Hint"));
                        tbNumbers.Focus();
                        e.Cancel = true;
                        break;
                    }
                }
            }
        }

        public override void Localize()
        {
            base.Localize();
            MyRes res = new MyRes("Forms,PrinterSetup");
            Text = res.Get("PrinterSetup");
            gbPrinter.Text = res.Get("Printer");
            cbSavePrinter.Text = res.Get("SavePrinter");
            btnSettings.Text = res.Get("Settings");
            cbPrintToFile.Text = res.Get("PrintToFile");
            gbPageRange.Text = res.Get("PageRange");
            rbAll.Text = res.Get("All");
            rbCurrent.Text = res.Get("Current");
            rbNumbers.Text = res.Get("Numbers");
            lblHint.Text = res.Get("Hint");
            gbCopies.Text = res.Get("Copies");
            lblCount.Text = res.Get("Count");
            cbCollate.Text = res.Get("Collate");
            gbOther.Text = res.Get("Other");
            lblOddEven.Text = res.Get("OddEven");
            lblOrder.Text = res.Get("Order");
            lblDuplex.Text = res.Get("Duplex");
            lblSource.Text = res.Get("Source");
            gbPrintMode.Text = res.Get("PrintMode");
            lblPrintOnSheet.Text = res.Get("PrintOnSheet");
            lblPagesOnSheet.Text = res.Get("PagesOnSheet");
        }

        public override void UpdateDpiDependencies()
        {
            base.UpdateDpiDependencies();
            cbxPrinter.ItemHeight = this.LogicalToDevice(16);
            cbxPrintMode.ItemHeight = this.LogicalToDevice(39);
        }

        public PrinterSetupForm()
        {
            InitializeComponent();
            Localize();
            Collapsed = true;
            printerSettings = new PrinterSettings();
            cbPrintToFile.Enabled = Config.PreviewSettings.AllowPrintToFile;
            btnSettings.Enabled = !Config.IsRunningOnMono;
            UIUtils.CheckRTL(this);
            UpdateDpiDependencies();
        }

    }
}