using System;
using System.Windows.Forms;
using FastReport.Utils;
using FastReport.Export;

namespace FastReport.Forms
{
    /// <summary>
    /// Base form for all export options dialog forms.
    /// </summary>
    public partial class BaseExportForm : BaseDialogForm
    {
        /// <summary>
        /// Represents the "Open after export" button visibility.
        /// </summary>
        public bool OpenAfterVisible
        {
            get
            {
                return cbOpenAfter.Visible;
            }
            set
            {
                cbOpenAfter.Visible = value;
            }
        }

        private ExportBase export;

        /// <summary>
        /// Gets a reference to the currently editing export filter.
        /// </summary>
        protected ExportBase Export
        {
            get { return export; }
        }

        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 = "";
        }

        /// <inheritdoc/>
        protected override void OnFormClosing(FormClosingEventArgs e)
        {
            base.OnFormClosing(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;
                    }
                }
            }
        }

        /// <inheritdoc/>
        protected override void OnFormClosed(FormClosedEventArgs e)
        {
            base.OnFormClosed(e);
            if (DialogResult == DialogResult.OK)
                Done();
        }

        /// <summary>
        /// Called when editing is done.
        /// </summary>
        /// <remarks>
        /// Override this method to pass edited values from the dialog controls to the export filter.
        /// </remarks>
        /// <example>See the example of this method implementation that is used in the <b>ImageExport</b>.
        /// <code>
        /// protected override void Done()
        /// {
        ///   base.Done();
        ///   ImageExport imageExport = Export as ImageExport;
        ///   imageExport.ImageFormat = (ImageExportFormat)cbxImageFormat.SelectedIndex;
        ///   imageExport.Resolution = (int)udResolution.Value;
        ///   imageExport.JpegQuality = (int)udQuality.Value;
        ///   imageExport.SeparateFiles = cbSeparateFiles.Checked;
        /// }
        /// </code>
        /// </example>
        protected virtual void Done()
        {
            if (rbAll.Checked)
                Export.PageRange = PageRange.All;
            else if (rbCurrent.Checked)
                Export.PageRange = PageRange.Current;
            else
                Export.PageRange = PageRange.PageNumbers;
            Export.PageNumbers = tbNumbers.Text;
            Export.OpenAfterExport = cbOpenAfter.Checked;
            Export.ExportAllTabs = cbExportAllTabs.Checked;
        }

        /// <inheritdoc/>
        public override void Localize()
        {
            base.Localize();
            MyRes res = new MyRes("Forms,PrinterSetup");
            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");
            cbOpenAfter.Text = Res.Get("Export,Misc,OpenAfterExport");
            cbExportAllTabs.Text = Res.Get("Export,Misc,ExportAllTabs");
        }

        /// <summary>
        /// Initializes controls with initial values.
        /// </summary>
        /// <param name="export">The export filter to edit.</param>
        /// <remarks>
        /// Override this method to pass values from the export filter to the dialog controls.
        /// </remarks>
        /// <example>See the example of this method implementation that is used in the <b>ImageExport</b>.
        /// <code>
        /// public override void Init(ExportBase export)
        /// {
        ///   base.Init(export);
        ///   ImageExport imageExport = Export as ImageExport;
        ///   cbxImageFormat.SelectedIndex = (int)imageExport.ImageFormat;
        ///   udResolution.Value = imageExport.Resolution;
        ///   udQuality.Value = imageExport.JpegQuality;
        ///   cbSeparateFiles.Checked = imageExport.SeparateFiles;
        /// }
        /// </code>
        /// </example>
        public virtual void Init(ExportBase export)
        {
            this.export = export;
            Localize();

            rbAll.Checked = Export.PageRange == PageRange.All;
            rbCurrent.Checked = Export.PageRange == PageRange.Current;
            rbNumbers.Checked = Export.PageRange == PageRange.PageNumbers;
            tbNumbers.Text = Export.PageNumbers;
            cbOpenAfter.Checked = Export.OpenAfterExport;

            cbOpenAfter.Enabled = export.AllowOpenAfter;
            cbExportAllTabs.Enabled = Export.TabsIsExists;
            cbExportAllTabs.Checked = Export.ExportAllTabs;
        }

        /// <inheritdoc/>
        public bool ShowDialog(ExportBase export)
        {
            Init(export);
            UIUtils.CheckRTL(this);
            UpdateDpiDependencies();
            return ShowDialog() == DialogResult.OK;
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="BaseExportForm"/> class with default settings.
        /// </summary>
        public BaseExportForm()
        {
            InitializeComponent();
        }
    }
}