/*
 * SecureBlackbox 2024 .NET Edition - Sample Project
 *
 * This sample project demonstrates the usage of SecureBlackbox in a 
 * simple, straightforward way. It is not intended to be a complete 
 * application. Error handling and other checks are simplified for clarity.
 *
 * www.nsoftware.com/secureblackbox
 *
 * This code is subject to the terms and conditions specified in the 
 * corresponding product license agreement which outlines the authorized 
 * usage and restrictions.
 * 
 */

using System;
using System.Windows.Forms;
using nsoftware.SecureBlackbox;

namespace PDFDecryptorDemo
{
    public class MainForm : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Button btnBrowseSource;
        private System.Windows.Forms.Button btnBrowseDest;
        private System.Windows.Forms.Label lSource;
        private System.Windows.Forms.Label lDest;
        private System.Windows.Forms.TextBox tbSource;
        private System.Windows.Forms.TextBox tbDest;
        private System.Windows.Forms.Button btnDecrypt;
        private System.Windows.Forms.Button btnCancel;
        private System.Windows.Forms.OpenFileDialog openPDFDialog;
        private System.Windows.Forms.SaveFileDialog savePDFDialog;
        private System.Windows.Forms.Label lDemoInfo;

        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components = null;

        public MainForm()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();

            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.tbSource = new System.Windows.Forms.TextBox();
            this.tbDest = new System.Windows.Forms.TextBox();
            this.btnBrowseSource = new System.Windows.Forms.Button();
            this.btnBrowseDest = new System.Windows.Forms.Button();
            this.lSource = new System.Windows.Forms.Label();
            this.lDest = new System.Windows.Forms.Label();
            this.btnDecrypt = new System.Windows.Forms.Button();
            this.btnCancel = new System.Windows.Forms.Button();
            this.openPDFDialog = new System.Windows.Forms.OpenFileDialog();
            this.savePDFDialog = new System.Windows.Forms.SaveFileDialog();
            this.lDemoInfo = new System.Windows.Forms.Label();
            this.SuspendLayout();
            // 
            // tbSource
            // 
            this.tbSource.Location = new System.Drawing.Point(8, 62);
            this.tbSource.Name = "tbSource";
            this.tbSource.Size = new System.Drawing.Size(288, 21);
            this.tbSource.TabIndex = 0;
            // 
            // tbDest
            // 
            this.tbDest.Location = new System.Drawing.Point(8, 110);
            this.tbDest.Name = "tbDest";
            this.tbDest.Size = new System.Drawing.Size(288, 21);
            this.tbDest.TabIndex = 2;
            // 
            // btnBrowseSource
            // 
            this.btnBrowseSource.Location = new System.Drawing.Point(304, 61);
            this.btnBrowseSource.Name = "btnBrowseSource";
            this.btnBrowseSource.Size = new System.Drawing.Size(75, 23);
            this.btnBrowseSource.TabIndex = 1;
            this.btnBrowseSource.Text = "Browse...";
            this.btnBrowseSource.Click += new System.EventHandler(this.btnBrowseSource_Click);
            // 
            // btnBrowseDest
            // 
            this.btnBrowseDest.Location = new System.Drawing.Point(304, 109);
            this.btnBrowseDest.Name = "btnBrowseDest";
            this.btnBrowseDest.Size = new System.Drawing.Size(75, 23);
            this.btnBrowseDest.TabIndex = 3;
            this.btnBrowseDest.Text = "Browse...";
            this.btnBrowseDest.Click += new System.EventHandler(this.btnBrowseDest_Click);
            // 
            // lSource
            // 
            this.lSource.AutoSize = true;
            this.lSource.Location = new System.Drawing.Point(8, 44);
            this.lSource.Name = "lSource";
            this.lSource.Size = new System.Drawing.Size(83, 13);
            this.lSource.TabIndex = 4;
            this.lSource.Text = "Source PDF file:";
            // 
            // lDest
            // 
            this.lDest.AutoSize = true;
            this.lDest.Location = new System.Drawing.Point(8, 92);
            this.lDest.Name = "lDest";
            this.lDest.Size = new System.Drawing.Size(104, 13);
            this.lDest.TabIndex = 5;
            this.lDest.Text = "Destination PDF file:";
            // 
            // btnDecrypt
            // 
            this.btnDecrypt.DialogResult = System.Windows.Forms.DialogResult.OK;
            this.btnDecrypt.Location = new System.Drawing.Point(117, 148);
            this.btnDecrypt.Name = "btnDecrypt";
            this.btnDecrypt.Size = new System.Drawing.Size(75, 23);
            this.btnDecrypt.TabIndex = 4;
            this.btnDecrypt.Text = "Decrypt";
            this.btnDecrypt.Click += new System.EventHandler(this.btnDecrypt_Click);
            // 
            // btnCancel
            // 
            this.btnCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
            this.btnCancel.Location = new System.Drawing.Point(197, 148);
            this.btnCancel.Name = "btnCancel";
            this.btnCancel.Size = new System.Drawing.Size(75, 23);
            this.btnCancel.TabIndex = 5;
            this.btnCancel.Text = "Cancel";
            this.btnCancel.Click += new System.EventHandler(this.btnCancel_Click);
            // 
            // openPDFDialog
            // 
            this.openPDFDialog.Filter = "PDF files (*.pdf)|*.pdf|All files (*.*)|*.*";
            this.openPDFDialog.InitialDirectory = ".";
            // 
            // savePDFDialog
            // 
            this.savePDFDialog.Filter = "PDF files (*.pdf)|*.pdf|All files (*.*)|*.*";
            this.savePDFDialog.InitialDirectory = ".";
            // 
            // lDemoInfo
            // 
            this.lDemoInfo.ForeColor = System.Drawing.SystemColors.Highlight;
            this.lDemoInfo.Location = new System.Drawing.Point(8, 2);
            this.lDemoInfo.Name = "lDemoInfo";
            this.lDemoInfo.Size = new System.Drawing.Size(371, 40);
            this.lDemoInfo.TabIndex = 9;
            this.lDemoInfo.Text = "This sample illustrates the use of PDFDecryptor component for decrypting PDF docu" +
    "ments. Please pick the PDF document and then click \'Decrypt\'";
            this.lDemoInfo.UseMnemonic = false;
            // 
            // MainForm
            // 
            this.AcceptButton = this.btnDecrypt;
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.CancelButton = this.btnCancel;
            this.ClientSize = new System.Drawing.Size(389, 182);
            this.Controls.Add(this.lDemoInfo);
            this.Controls.Add(this.btnCancel);
            this.Controls.Add(this.btnDecrypt);
            this.Controls.Add(this.lDest);
            this.Controls.Add(this.lSource);
            this.Controls.Add(this.btnBrowseDest);
            this.Controls.Add(this.btnBrowseSource);
            this.Controls.Add(this.tbDest);
            this.Controls.Add(this.tbSource);
            this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(204)));
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
            this.MaximizeBox = false;
            this.Name = "MainForm";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "PDF Decryptor demo";
            this.ResumeLayout(false);
            this.PerformLayout();

        }
        #endregion

        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.Run(new MainForm());
        }

        private void btnBrowseSource_Click(object sender, System.EventArgs e)
        {
            openPDFDialog.FileName = tbSource.Text;
            if (openPDFDialog.ShowDialog() == DialogResult.OK)
                tbSource.Text = openPDFDialog.FileName;
        }

        private void btnBrowseDest_Click(object sender, System.EventArgs e)
        {
            savePDFDialog.FileName = tbDest.Text;
            if (savePDFDialog.ShowDialog() == DialogResult.OK)
                tbDest.Text = savePDFDialog.FileName;
        }

        private void btnDecrypt_Click(object sender, System.EventArgs e)
        {
            using (PDFDecryptor PDFDecryptor = new PDFDecryptor())
            {
                try
                {
                    PDFDecryptor.OnEncrypted += PDFDecryptor_OnEncrypted;

                    PDFDecryptor.InputFile = tbSource.Text;
                    PDFDecryptor.OutputFile = tbDest.Text;

                    PDFDecryptor.Decrypt();

                    MessageBox.Show("PDF document successfully decrypted", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Error: " + ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }

            this.Close();
        }

        private void PDFDecryptor_OnEncrypted(object sender, PDFDecryptorEncryptedEventArgs e)
        {
            using (EncPropsForm FormPdfencprops = new EncPropsForm())
            {
                FormPdfencprops.SetPDFEncryptionProps(sender as PDFDecryptor);

                e.SkipThis = (FormPdfencprops.ShowDialog() == DialogResult.Cancel);

                FormPdfencprops.GetPDFDecryptionInfo(sender as PDFDecryptor);
            }
        }

        private void btnCancel_Click(object sender, System.EventArgs e)
        {
            this.Close();
        }
    }
}