Reorganised some files

Utils/SelectFolderForm.cs

@@ -0,0 +1,70 @@
+using CodeWalker.Properties;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace CodeWalker
+{
+    public partial class SelectFolderForm : Form
+    {
+
+        public string SelectedFolder { get; set; }
+        public DialogResult Result { get; set; } = DialogResult.Cancel;
+
+        public SelectFolderForm()
+        {
+            InitializeComponent();
+            SelectedFolder = GTAFolder.CurrentGTAFolder;
+        }
+
+        private void SelectFolderForm_Load(object sender, EventArgs e)
+        {
+            FolderTextBox.Text = SelectedFolder;
+            RememberFolderCheckbox.Checked = Settings.Default.RememberGTAFolder;
+        }
+
+        private void FolderBrowseButton_Click(object sender, EventArgs e)
+        {
+            FolderBrowserDialog.SelectedPath = FolderTextBox.Text;
+            DialogResult res = FolderBrowserDialog.ShowDialog();
+            if (res == DialogResult.OK)
+            {
+                FolderTextBox.Text = FolderBrowserDialog.SelectedPath;
+            }
+        }
+
+        private void FolderTextBox_TextChanged(object sender, EventArgs e)
+        {
+            SelectedFolder = FolderTextBox.Text;
+        }
+
+        private void CancelButton_Click(object sender, EventArgs e)
+        {
+            Close();
+        }
+
+        private void OkButton_Click(object sender, EventArgs e)
+        {
+            if(!GTAFolder.ValidateGTAFolder(SelectedFolder, out string failReason))
+            {
+                MessageBox.Show("The selected folder could not be used:\n\n" + failReason, "Invalid GTA Folder", MessageBoxButtons.OK, MessageBoxIcon.Warning);
+                return;
+            }
+
+            Result = DialogResult.OK;
+            Close();
+        }
+
+        private void RememberFolderCheckbox_CheckedChanged(object sender, EventArgs e)
+        {
+            Settings.Default.RememberGTAFolder = RememberFolderCheckbox.Checked;
+        }
+    }
+}