Include Simple C# GUI Application

csharp-test/App.config → csharp-prs-GUI/App.config

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8" ?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
     </startup>
-</configuration>
+</configuration>

csharp-prs-GUI/MainForm.cs

@@ -0,0 +1,128 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Diagnostics;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using csharp_prs;
+
+namespace csharp_prs_GUI
+{
+    public partial class MainForm : Form
+    {
+        // Name of the directory relative to application directory to which all files are output.
+        public const string TempDirectoryName = "temp-output";
+
+        public MainForm()
+        {
+            InitializeComponent();
+        }
+
+        /*
+            -----------
+            Drag Events
+            -----------
+        */
+
+        /*
+            Change Mouse Cursor & Target Drop Effect on Drag Enter with Files
+        */
+        private void btn_CompressDragDrop_DragEnter(object sender, DragEventArgs e)
+        {
+            if (e.Data.GetDataPresent(DataFormats.FileDrop))
+                e.Effect = DragDropEffects.Copy;
+        }
+
+        private void btn_DecompressDragDrop_DragEnter(object sender, DragEventArgs e)
+        {
+            if (e.Data.GetDataPresent(DataFormats.FileDrop))
+                e.Effect = DragDropEffects.Copy;
+        }
+
+
+        /*
+            Process each file in a DragDrop operation.
+        */
+        private void btn_CompressDragDrop_DragDrop(object sender, DragEventArgs e)
+        {
+            // Get files dropped onto button and process them.
+            string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
+            PrepareOutputFolder();
+
+            int searchBufferSize = (int)nud_SearchBufferSize.Value;
+            ParallelOptions options = new ParallelOptions() { MaxDegreeOfParallelism = Environment.ProcessorCount };
+            Parallel.ForEach(files, file =>
+            {
+                byte[] decompressedFile = File.ReadAllBytes(file);
+                byte[] compressedFile = Prs.Compress(ref decompressedFile, searchBufferSize);
+
+                string fileName = Path.GetFileName(file);
+                File.WriteAllBytes($"{TempDirectoryName}\\{fileName}", compressedFile);
+            });
+
+            // Open directory
+            Process.Start(TempDirectoryName);
+        }
+
+        private void btn_DecompressDragDrop_DragDrop(object sender, DragEventArgs e)
+        {
+            // Get files dropped onto button and process them.
+            string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
+            PrepareOutputFolder();
+
+            ParallelOptions options = new ParallelOptions() { MaxDegreeOfParallelism = Environment.ProcessorCount };
+            Parallel.ForEach(files, file =>
+            {
+                byte[] compressedFile   = File.ReadAllBytes(file);
+                byte[] decompressedFile = Prs.Decompress(ref compressedFile);
+
+                string fileName = Path.GetFileName(file);
+                File.WriteAllBytes($"{TempDirectoryName}\\{fileName}", decompressedFile);
+            });
+
+            // Open directory
+            Process.Start(TempDirectoryName);
+        }
+
+        /*
+            ----------------------------
+            Compress/Decompress Routines
+            ----------------------------
+        */
+
+        public void PrepareOutputFolder()
+        {
+            if (! Directory.Exists(TempDirectoryName))
+                Directory.CreateDirectory(TempDirectoryName);
+            else
+                ClearDirectory(new DirectoryInfo(TempDirectoryName));
+        }
+
+
+        /// <summary>
+        /// Removes all files from a specific directory and subdirectories.
+        /// </summary>
+        public static void ClearDirectory(DirectoryInfo directory)
+        {
+            foreach (FileInfo file in directory.GetFiles())
+                file.Delete();
+
+            foreach (DirectoryInfo subDirectory in directory.GetDirectories())
+                subDirectory.Delete(true);
+        }
+
+        /// <summary>
+        /// Cleanup our temp folder.
+        /// </summary>
+        private void MainForm_FormClosed(object sender, FormClosedEventArgs e)
+        {
+            if (Directory.Exists(TempDirectoryName))
+                new DirectoryInfo(TempDirectoryName).Delete(true);
+        }
+    }
+}