Menus & Dialogs 📋

// ===== COMPLETE TEXT EDITOR WITH ALL DIALOGS =====
// This is a fully functional text editor
// that uses EVERY dialog we learned

public partial class MainForm : Form
{
    private string currentFileName = "";
    private bool hasChanges = false;
    
    public MainForm()
    {
        InitializeComponent();
        UpdateStatus();
    }
    
    // ===== 📂 FILE MENU =====
    
    // ✅ New Document
    private void newToolStripMenuItem_Click(object sender, EventArgs e)
    {
        if (CheckSaveChanges())
        {
            txtContent.Clear();
            currentFileName = "";
            hasChanges = false;
            UpdateStatus();
        }
    }
    
    // ✅ Open File (OpenFileDialog)
    private void openToolStripMenuItem_Click(object sender, EventArgs e)
    {
        if (!CheckSaveChanges()) return;
        
        using (OpenFileDialog openDlg = new OpenFileDialog())
        {
            openDlg.Title = "Open a text file";
            openDlg.Filter = "Text Files (*.txt)|*.txt|All Files (*.*)|*.*";
            openDlg.RestoreDirectory = true;
            
            if (openDlg.ShowDialog() == DialogResult.OK)
            {
                try
                {
                    txtContent.Text = File.ReadAllText(openDlg.FileName);
                    currentFileName = openDlg.FileName;
                    hasChanges = false;
                    UpdateStatus();
                }
                catch (Exception ex)
                {
                    MessageBox.Show($"Error: {ex.Message}", "Error",
                        MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }
    }
    
    // ✅ Save File (SaveFileDialog)
    private void saveToolStripMenuItem_Click(object sender, EventArgs e)
    {
        if (string.IsNullOrWhiteSpace(currentFileName))
        {
            saveAsToolStripMenuItem_Click(sender, e);
            return;
        }
        SaveFile(currentFileName);
    }
    
    // ✅ Save As (SaveFileDialog)
    private void saveAsToolStripMenuItem_Click(object sender, EventArgs e)
    {
        using (SaveFileDialog saveDlg = new SaveFileDialog())
        {
            saveDlg.Title = "Save your file";
            saveDlg.Filter = "Text Files (*.txt)|*.txt|All Files (*.*)|*.*";
            saveDlg.DefaultExt = "txt";
            saveDlg.OverwritePrompt = true;
            
            if (saveDlg.ShowDialog() == DialogResult.OK)
            {
                SaveFile(saveDlg.FileName);
                currentFileName = saveDlg.FileName;
                UpdateStatus();
            }
        }
    }
    
    private void SaveFile(string fileName)
    {
        try
        {
            File.WriteAllText(fileName, txtContent.Text);
            hasChanges = false;
            UpdateStatus();
            MessageBox.Show("File saved successfully!", "Success",
                MessageBoxButtons.OK, MessageBoxIcon.Information);
        }
        catch (Exception ex)
        {
            MessageBox.Show($"Error: {ex.Message}", "Error",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
        }
    }
    
    // ✅ Print (PrintDialog + PrintDocument)
    private void printToolStripMenuItem_Click(object sender, EventArgs e)
    {
        if (string.IsNullOrWhiteSpace(txtContent.Text))
        {
            MessageBox.Show("Nothing to print!", "Warning",
                MessageBoxButtons.OK, MessageBoxIcon.Warning);
            return;
        }
        
        printDialog1.Document = printDocument1;
        
        if (printDialog1.ShowDialog() == DialogResult.OK)
        {
            try
            {
                printDocument1.Print();
                lblStatus.Text = "🖨️ Document sent to printer";
                lblStatus.ForeColor = Color.Green;
            }
            catch (Exception ex)
            {
                MessageBox.Show($"Print error: {ex.Message}", "Error",
                    MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
    }
    
    // ✅ PrintDocument event
    private void printDocument1_PrintPage(object sender, PrintPageEventArgs e)
    {
        using (Font printFont = new Font("Arial", 12))
        {
            e.Graphics.DrawString(txtContent.Text, printFont, 
                Brushes.Black, 
                e.MarginBounds.Left, e.MarginBounds.Top);
        }
        e.HasMorePages = false;
    }
    
    // ✅ Exit
    private void exitToolStripMenuItem_Click(object sender, EventArgs e)
    {
        Close();
    }
    
    // ===== ✏️ EDIT MENU =====
    
    private void cutToolStripMenuItem_Click(object sender, EventArgs e)
    {
        if (txtContent.SelectedText != "")
        {
            Clipboard.SetText(txtContent.SelectedText);
            txtContent.Cut();
            hasChanges = true;
            UpdateStatus();
        }
    }
    
    private void copyToolStripMenuItem_Click(object sender, EventArgs e)
    {
        if (txtContent.SelectedText != "")
        {
            Clipboard.SetText(txtContent.SelectedText);
        }
    }
    
    private void pasteToolStripMenuItem_Click(object sender, EventArgs e)
    {
        if (Clipboard.ContainsText())
        {
            txtContent.Paste();
            hasChanges = true;
            UpdateStatus();
        }
    }
    
    private void selectAllToolStripMenuItem_Click(object sender, EventArgs e)
    {
        txtContent.SelectAll();
    }
    
    // ===== 🎨 FORMAT MENU =====
    
    // ✅ Font Dialog
    private void fontToolStripMenuItem_Click(object sender, EventArgs e)
    {
        using (FontDialog fontDlg = new FontDialog())
        {
            fontDlg.Font = txtContent.Font;
            fontDlg.Color = txtContent.ForeColor;
            fontDlg.ShowColor = true;
            
            if (fontDlg.ShowDialog() == DialogResult.OK)
            {
                txtContent.Font = fontDlg.Font;
                txtContent.ForeColor = fontDlg.Color;
                UpdateStatus();
            }
        }
    }
    
    // ✅ Color Dialog
    private void colorToolStripMenuItem_Click(object sender, EventArgs e)
    {
        using (ColorDialog colorDlg = new ColorDialog())
        {
            colorDlg.Color = txtContent.ForeColor;
            colorDlg.FullOpen = true;
            
            if (colorDlg.ShowDialog() == DialogResult.OK)
            {
                txtContent.ForeColor = colorDlg.Color;
                UpdateStatus();
            }
        }
    }
    
    // ===== 📁 TOOLS MENU =====
    
    // ✅ FolderBrowserDialog
    private void folderToolStripMenuItem_Click(object sender, EventArgs e)
    {
        using (FolderBrowserDialog folderDlg = new FolderBrowserDialog())
        {
            folderDlg.Description = "Select a folder";
            folderDlg.ShowNewFolderButton = true;
            
            if (folderDlg.ShowDialog() == DialogResult.OK)
            {
                lblStatus.Text = $"📁 Selected: {folderDlg.SelectedPath}";
                lblStatus.ForeColor = Color.Green;
            }
        }
    }
    
    // ===== ❓ HELP MENU =====
    
    // ✅ Custom About Dialog
    private void aboutToolStripMenuItem_Click(object sender, EventArgs e)
    {
        using (AboutBox aboutBox = new AboutBox())
        {
            aboutBox.ShowDialog();
        }
    }
    
    // ===== 📊 STATUS BAR =====
    
    private void txtContent_TextChanged(object sender, EventArgs e)
    {
        hasChanges = true;
        UpdateStatus();
    }
    
    private void UpdateStatus()
    {
        // Word count
        int wordCount = txtContent.Text.Split(
            new char[] { ' ', '\n', '\r' },
            StringSplitOptions.RemoveEmptyEntries).Length;
        
        // File name
        string fileName = string.IsNullOrWhiteSpace(currentFileName) ?
            "Untitled" : Path.GetFileName(currentFileName);
        
        // Modified marker
        string modified = hasChanges ? " *" : "";
        
        // Update status bar
        lblStatus.Text = $"📄 {fileName}{modified} | 📊 Words: {wordCount} | 📝 Chars: {txtContent.Text.Length}";
    }
    
    // ===== 🚪 FORM CLOSING =====
    
    private bool CheckSaveChanges()
    {
        if (!hasChanges) return true;
        
        DialogResult result = MessageBox.Show(
            "Do you want to save changes?",
            "Unsaved Changes",
            MessageBoxButtons.YesNoCancel,
            MessageBoxIcon.Warning
        );
        
        if (result == DialogResult.Yes)
        {
            saveToolStripMenuItem_Click(this, EventArgs.Empty);
            return !hasChanges;
        }
        else if (result == DialogResult.No)
        {
            return true;
        }
        return false;
    }
    
    private void MainForm_FormClosing(object sender, FormClosingEventArgs e)
    {
        if (!CheckSaveChanges())
        {
            e.Cancel = true;
        }
    }
}

// ===== ABOUT BOX (Custom Dialog) =====

public partial class AboutBox : Form
{
    public AboutBox()
    {
        InitializeComponent();
        
        // Set the text in the labels
        lblAppName.Text = "My Awesome Text Editor";
        lblVersion.Text = "Version 1.0.0";
        lblDescription.Text = "Built with C# and WinForms\nusing all dialogs and menus";
        lblCopyright.Text = "© 2024 C# Mastery Hub";
    }
}