Added the file change mode dialog.

Author: nickdu088

Sharp4Explorer/ChangeModeDialog.Designer.cs

@@ -0,0 +1,106 @@
+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;
+
+namespace SharpExt4Explorer
+{
+    public partial class ChangeModeDialog : Form
+    {
+        public static string ModeToString(uint mode)
+        {
+            char fileType = '-';
+
+            if ((mode & 0xF000) == 0x4000) fileType = 'd'; // Directory
+            else if ((mode & 0xF000) == 0x8000) fileType = '-'; // Regular file
+            else if ((mode & 0xF000) == 0xA000) fileType = 'l'; // Symlink
+            else if ((mode & 0xF000) == 0x6000) fileType = 'b'; // Block device
+            else if ((mode & 0xF000) == 0x2000) fileType = 'c'; // Char device
+            else if ((mode & 0xF000) == 0x1000) fileType = 'p'; // FIFO
+            else if ((mode & 0xF000) == 0xC000) fileType = 's'; // Socket
+
+            string perms = "";
+
+            int[] shifts = { 6, 3, 0 }; // User, Group, Others
+            foreach (int shift in shifts)
+            {
+                perms += ((mode >> shift) & 0b100) != 0 ? 'r' : '-';
+                perms += ((mode >> shift) & 0b010) != 0 ? 'w' : '-';
+                perms += ((mode >> shift) & 0b001) != 0 ? 'x' : '-';
+            }
+
+            // Handle special bits
+            if ((mode & 0x0800) != 0) // Setuid
+                perms = perms.Substring(0, 2) + (perms[2] == 'x' ? 's' : 'S') + perms.Substring(3);
+            if ((mode & 0x0400) != 0) // Setgid
+                perms = perms.Substring(0, 5) + (perms[5] == 'x' ? 's' : 'S') + perms.Substring(6);
+            if ((mode & 0x0200) != 0) // Sticky
+                perms = perms.Substring(0, 8) + (perms[8] == 'x' ? 't' : 'T');
+
+            return fileType + perms;
+        }
+
+        public static string ToSymbolic(int mode)
+        {
+            char[] result = new char[9];
+            int[] masks = { 0x100, 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 };
+            char[] chars = { 'r', 'w', 'x' };
+
+            for (int i = 0; i < 9; i++)
+                result[i] = (mode & masks[i]) != 0 ? chars[i % 3] : '-';
+
+            return new string(result);
+        }
+
+        public uint FileMode { get; private set; }
+
+        public ChangeModeDialog(uint currentMode)
+        {
+            InitializeComponent();
+            LoadMode(currentMode);
+        }
+
+        private void LoadMode(uint mode)
+        {
+            // User permissions
+            checkBoxUserRead.Checked = (mode & 0x100) != 0;
+            checkBoxUserWrite.Checked = (mode & 0x80) != 0;
+            checkBoxUserExecute.Checked = (mode & 0x40) != 0;
+
+            // Group permissions
+            checkBoxGroupRead.Checked = (mode & 0x20) != 0;
+            checkBoxGroupWrite.Checked = (mode & 0x10) != 0;
+            checkBoxGroupExecute.Checked = (mode & 0x08) != 0;
+
+            // Other permissions
+            checkBoxOtherRead.Checked = (mode & 0x04) != 0;
+            checkBoxOtherWrite.Checked = (mode & 0x02) != 0;
+            checkBoxOtherExecute.Checked = (mode & 0x01) != 0;
+        }
+
+        private void btnOK_Click(object sender, EventArgs e)
+        {
+            FileMode = 0;
+
+            if (checkBoxUserRead.Checked) FileMode |= 0x100;
+            if (checkBoxUserWrite.Checked) FileMode |= 0x80;
+            if (checkBoxUserExecute.Checked) FileMode |= 0x40;
+
+            if (checkBoxGroupRead.Checked) FileMode |= 0x20;
+            if (checkBoxGroupWrite.Checked) FileMode |= 0x10;
+            if (checkBoxGroupExecute.Checked) FileMode |= 0x08;
+
+            if (checkBoxOtherRead.Checked) FileMode |= 0x04;
+            if (checkBoxOtherWrite.Checked) FileMode |= 0x02;
+            if (checkBoxOtherExecute.Checked) FileMode |= 0x01;
+
+            DialogResult = DialogResult.OK;
+            Close();
+        }
+    }
+}