- Partial implementation by Benjamin Dasnois

svn path=/trunk/mcs/; revision=34728

mcs/class/Managed.Windows.Forms/System.Windows.Forms/MessageBox.cs

@@ -21,15 +21,18 @@
 //
 // Authors:
 //	Jordi Mas i Hernandez, [email protected]
+//	Benjamin Dasnois, [email protected]
 //
 // TODO:
-//		- Complete the implementation when the Button class is available
+//	- Complete the implementation when icons are available, Form.BorderStyle is available.
+//	- Add support for MessageBoxOptions and MessageBoxDefaultButton.
 //
 //
-// $Revision: 1.1 $
-// $Modtime: $
 // $Log: MessageBox.cs,v $
-// Revision 1.1  2004/07/26 11:41:35  jordi
+// Revision 1.2  2004/10/05 17:10:57  pbartok
+// - Partial implementation by Benjamin Dasnois
+//
+// Revision 1.1	 2004/07/26 11:41:35  jordi
 // initial messagebox implementation
 //
 //
@@ -41,41 +44,352 @@ using System.Drawing;
 
 namespace System.Windows.Forms
 {
-
 	public class MessageBox
 	{
+		#region Private MessageBoxForm class
 		private class MessageBoxForm : Form
 		{
-			
+			#region MessageBoxFrom Local Variables
+			string			msgbox_text;
+			bool			size_known	=false;
+			const int		space_image_text= 20;
+			Image			icon_image;
+			Point			textleft_up;
+			MessageBoxButtons	msgbox_buttons;
+			bool			buttons_placed	= false;
+			int			button_left;
+			#endregion	// MessageBoxFrom Local Variables
+
+			#region MessageBoxForm Constructors
 			public MessageBoxForm (IWin32Window owner, string text, string caption,
-				MessageBoxButtons buttons, MessageBoxIcon icon)
+					MessageBoxButtons buttons, MessageBoxIcon icon) 
 			{
-				
+				switch (icon) {
+					case MessageBoxIcon.None: {
+						icon_image = null;
+						break;
+					}
+
+					case MessageBoxIcon.Error: {
+						break;
+					}
+
+					case MessageBoxIcon.Question: {
+						break;
+					}
+
+					case MessageBoxIcon.Exclamation: {
+						break;
+					}
+
+					case MessageBoxIcon.Asterisk: {
+						break;
+					}
+				}
+
+				msgbox_text = text;
+				msgbox_buttons = buttons;
+				this.Text = caption;
+				this.Paint += new PaintEventHandler (MessageBoxForm_Paint);
 			}
 
+			[MonoTODO]
 			public MessageBoxForm (IWin32Window owner, string text, string caption,
-				MessageBoxButtons buttons, MessageBoxIcon icon,
-				MessageBoxDefaultButton defaultButton, MessageBoxOptions options)
+					MessageBoxButtons buttons, MessageBoxIcon icon,
+					MessageBoxDefaultButton defaultButton, MessageBoxOptions options) : this (owner, text, caption, buttons, icon)
 			{
-				
+				// Still needs to implement defaultButton and options
+
 			}
+			#endregion	// MessageBoxForm Constructors
+
 			
+			#region MessageBoxForm Methods
 			public DialogResult RunDialog ()
-			{								
-				return DialogResult.OK;
+			{
+				this.StartPosition = FormStartPosition.CenterScreen;
+				this.ShowDialog ();
+
+				return this.DialogResult;
+
+			}
+
+			private void MessageBoxForm_Paint(object sender, PaintEventArgs e)
+			{
+				if (size_known == false) {
+					InitFormsSize (e);
+				}
+			       
+				e.Graphics.DrawString (msgbox_text, this.Font, new SolidBrush(Color.Black), textleft_up);
+			}
+
+			private void InitFormsSize(PaintEventArgs e)
+			{
+				int tb_width = 0;
+		
+				// First we have to know the size of text + image
+				Drawing.SizeF tsize = e.Graphics.MeasureString (msgbox_text, this.Font);
+
+				if (!(icon_image == null)) {
+					tsize.Width += icon_image.Width;
+					textleft_up = new Point (icon_image.Width + space_image_text, 0);
+				} else {
+					textleft_up = new Point (0, 0);
+				}
+
+				// Now we want to know the width of buttons
+		
+				switch (msgbox_buttons) {
+					case MessageBoxButtons.OK: {
+						tb_width = 110 * 1;
+						break;
+					}
+
+					case MessageBoxButtons.OKCancel: {
+						tb_width = 110 * 2;
+						break;
+					}
+
+					case MessageBoxButtons.AbortRetryIgnore: {
+						tb_width = 110 * 3;
+						break;
+					}
+
+					case MessageBoxButtons.YesNoCancel: {
+						tb_width = 110 * 3;
+						break;
+					}
+
+					case MessageBoxButtons.YesNo: {
+						tb_width = 110 * 2;
+						break;
+					}
+
+					case MessageBoxButtons.RetryCancel: {
+						tb_width = 110 * 2;
+						break;
+					}
+				}
+
+				// Now we choose the good size for the form
+				if (tsize.ToSize ().Width > tb_width) {
+					this.Width = tsize.ToSize().Width + 10;
+				} else {
+					this.Width = tb_width;
+				}
+				this.Height = tsize.ToSize ().Height + 80;
+
+				// Now we set the left of the buttons
+				button_left = (this.Width / 2) - (tb_width / 2);
+				AddButtons ();
+				size_known = true;
+				this.Refresh ();
+			}
+			#endregion	// MessageBoxForm Methods
+
+			#region Functions for Adding buttons
+			private void AddButtons()
+			{
+				if (!buttons_placed) {
+					switch (msgbox_buttons) {
+						case MessageBoxButtons.OK: {
+							AddOkButton (0 + button_left);
+							break;
+						}
+
+						case MessageBoxButtons.OKCancel: {
+							AddOkButton (0 + button_left);
+							AddCancelButton (110 + button_left);
+							break;
+						}
+
+						case MessageBoxButtons.AbortRetryIgnore: {
+							AddAbortButton (0 + button_left);
+							AddRetryButton (110 + button_left);
+							AddIgnoreButton (220 + button_left);
+							break;
+						}
+
+						case MessageBoxButtons.YesNoCancel: {
+							AddYesButton (0 + button_left);
+							AddNoButton (110 + button_left);
+							AddCancelButton (220 + button_left);
+							break;
+						}
+
+						case MessageBoxButtons.YesNo: {
+							AddYesButton (0 + button_left);
+							AddNoButton (110 + button_left);
+							break;
+						}
+
+						case MessageBoxButtons.RetryCancel: {
+							AddRetryButton (0 + button_left);
+							AddCancelButton (110 + button_left);
+							break;
+						}
+					}
+					buttons_placed = true;
+				}
+			}
+
+			private void AddOkButton (int left)
+			{
+				Button bok = new Button ();
+				bok.Text = "OK";
+				this.Controls.Add (bok);
+				bok.Width = 100;
+				bok.Height = 30;
+				bok.Top = this.Height - 70;
+				bok.Left = left;
+				bok.Show ();
+				bok.Click += new EventHandler (OkClick);
+
+			}
+
+			private void AddCancelButton (int left)
+			{
+				Button bcan = new Button ();
+				bcan.Text = "Cancel";
+				this.Controls.Add (bcan);
+				bcan.Width = 100;
+				bcan.Height = 30;
+				bcan.Top = this.Height - 70;
+				bcan.Left = left;
+				bcan.Show ();
+				bcan.Click += new EventHandler (CancelClick);
+			}
+
+			private void AddAbortButton (int left)
+			{
+				Button babort = new Button ();
+				babort.Text = "Abort";
+				this.Controls.Add (babort);
+				babort.Width = 100;
+				babort.Height = 30;
+				babort.Top = this.Height - 70;
+				babort.Left = left;
+				babort.Show ();
+				babort.Click += new EventHandler (AbortClick);
+
+			}
+
+			private void AddRetryButton(int left)
+			{
+				Button bretry = new Button ();
+				bretry.Text = "Retry";
+				this.Controls.Add (bretry);
+				bretry.Width = 100;
+				bretry.Height = 30;
+				bretry.Top = this.Height - 70;
+				bretry.Left = left;
+				bretry.Show ();
+				bretry.Click += new EventHandler (RetryClick);
+
+			}
+
+			private void AddIgnoreButton (int left)
+			{
+				Button bignore = new Button ();
+				bignore.Text = "Ignore";
+				this.Controls.Add (bignore);
+				bignore.Width = 100;
+				bignore.Height = 30;
+				bignore.Top = this.Height - 70;
+				bignore.Left = left;
+				bignore.Show ();
+				bignore.Click += new EventHandler (IgnoreClick);
+
+			}
+
+			private void AddYesButton (int left)
+			{
+				Button byes = new Button ();
+				byes.Text = "Yes";
+				this.Controls.Add (byes);
+				byes.Width = 100;
+				byes.Height = 30;
+				byes.Top = this.Height - 70;
+				byes.Left = left;
+				byes.Show ();
+				byes.Click += new EventHandler (YesClick);
+
 			}
+
+			private void AddNoButton (int left)
+			{
+				Button bno = new Button ();
+				bno.Text = "No";
+				this.Controls.Add (bno);
+				bno.Width = 100;
+				bno.Height = 30;
+				bno.Top = this.Height - 70;
+				bno.Left = left;
+				bno.Show ();
+				bno.Click += new EventHandler (NoClick);
+
+			}
+			#endregion
+
+			#region Button click handlers
+			private void OkClick (object sender, EventArgs e)
+			{
+				this.DialogResult = DialogResult.OK;
+				this.Close ();
+			}
+
+			private void CancelClick (object sender, EventArgs e)
+			{
+				this.DialogResult = DialogResult.Cancel;
+				this.Close ();
+			}
+
+			private void AbortClick (object sender, EventArgs e)
+			{
+				this.DialogResult = DialogResult.Abort;
+				this.Close ();
+			}
+
+			private void RetryClick (object sender, EventArgs e)
+			{
+				this.DialogResult = DialogResult.Retry;
+				this.Close ();
+			}
+
+			private void IgnoreClick (object sender, EventArgs e)
+			{
+				this.DialogResult = DialogResult.Ignore;
+				this.Close ();
+			}
+
+			private void YesClick (object sender, EventArgs e)
+			{
+				this.DialogResult = DialogResult.Yes;
+				this.Close ();
+			}
+
+			private void NoClick (object sender, EventArgs e)
+			{
+				this.DialogResult = DialogResult.No;
+				this.Close ();
+			}
+			#endregion
 		}
+		#endregion	// Private MessageBoxForm class
 
 
+		#region	Constructors
 		private MessageBox ()
 		{
 
 		}
+		#endregion	// Constructors
 
+		#region Public Static Methods
 		public static DialogResult Show (string text)
 		{
 			MessageBoxForm form = new MessageBoxForm (null, text, string.Empty,
-				MessageBoxButtons.OK, MessageBoxIcon.None);
+					MessageBoxButtons.OK, MessageBoxIcon.None);
 
 			return form.RunDialog ();
 
@@ -84,7 +398,7 @@ namespace System.Windows.Forms
 		public static DialogResult Show (IWin32Window owner, string text)
 		{
 			MessageBoxForm form = new MessageBoxForm (owner, text, string.Empty,
-				MessageBoxButtons.OK, MessageBoxIcon.None);
+					MessageBoxButtons.OK, MessageBoxIcon.None);
 				
 			return form.RunDialog ();
 
@@ -93,7 +407,7 @@ namespace System.Windows.Forms
 		public static DialogResult Show (string text, string caption)
 		{
 			MessageBoxForm form = new MessageBoxForm (null, text, caption,
-				MessageBoxButtons.OK, MessageBoxIcon.None);
+					MessageBoxButtons.OK, MessageBoxIcon.None);
 
 			return form.RunDialog ();
 		}
@@ -101,25 +415,25 @@ namespace System.Windows.Forms
 		public static DialogResult Show (string text, string caption, MessageBoxButtons buttons)
 		{
 			MessageBoxForm form = new MessageBoxForm (null, text, caption,
-				buttons, MessageBoxIcon.None);
+					buttons, MessageBoxIcon.None);
 				
 			return form.RunDialog ();
 		}
 
-                public static DialogResult Show (IWin32Window owner, string text,  string caption,
-			MessageBoxButtons buttons)
+		public static DialogResult Show (IWin32Window owner, string text,  string caption,
+				MessageBoxButtons buttons)
 		{
 			MessageBoxForm form = new MessageBoxForm (owner, text, caption,
-				buttons, MessageBoxIcon.None);
+					buttons, MessageBoxIcon.None);
 				
 			return form.RunDialog ();
 		}
 
 		public static DialogResult Show (IWin32Window owner, string text, string caption,
-			MessageBoxButtons buttons, MessageBoxIcon icon)
+				MessageBoxButtons buttons, MessageBoxIcon icon)
 		{
 			MessageBoxForm form = new MessageBoxForm (owner, text, caption,
-				buttons, icon);
+					buttons, icon);
 				
 			return form.RunDialog ();
 		}
@@ -128,60 +442,62 @@ namespace System.Windows.Forms
 		public static DialogResult Show (IWin32Window owner, string text, string caption)
 		{
 			MessageBoxForm form = new MessageBoxForm (owner, text, caption,
-				MessageBoxButtons.OK, MessageBoxIcon.None);
+					MessageBoxButtons.OK, MessageBoxIcon.None);
 				
 			return form.RunDialog ();
 		}
 
 
 		public static DialogResult Show (string text, string caption, MessageBoxButtons buttons,
-			MessageBoxIcon icon)
+				MessageBoxIcon icon)
 		{
 			MessageBoxForm form = new MessageBoxForm (null, text, caption,
-				buttons, icon);
+					buttons, icon);
 				
 			return form.RunDialog ();
 		}
 
 		public static DialogResult Show (string text, string caption, MessageBoxButtons buttons,
-			MessageBoxIcon icon, MessageBoxDefaultButton defaultButton)
+				MessageBoxIcon icon, MessageBoxDefaultButton defaultButton)
 		{
 
 			MessageBoxForm form = new MessageBoxForm (null, text, caption,
-				buttons, icon, defaultButton, MessageBoxOptions.DefaultDesktopOnly);
+					buttons, icon, defaultButton, MessageBoxOptions.DefaultDesktopOnly);
 				
 			return form.RunDialog ();
 
 		}
 
 		public static DialogResult Show (IWin32Window owner, string text, string caption,
-			MessageBoxButtons buttons, MessageBoxIcon icon,  MessageBoxDefaultButton defaultButton)
+				MessageBoxButtons buttons, MessageBoxIcon icon,	 MessageBoxDefaultButton defaultButton)
 		{
 			MessageBoxForm form = new MessageBoxForm (owner, text, caption,
-				buttons, icon, defaultButton, MessageBoxOptions.DefaultDesktopOnly);
+					buttons, icon, defaultButton, MessageBoxOptions.DefaultDesktopOnly);
 				
 			return form.RunDialog ();
 		}
 
 		public static DialogResult
-			Show (string text, string caption,
-			      MessageBoxButtons buttons, MessageBoxIcon icon,
-			      MessageBoxDefaultButton defaultButton, MessageBoxOptions options)
+				Show (string text, string caption,
+						MessageBoxButtons buttons, MessageBoxIcon icon,
+						MessageBoxDefaultButton defaultButton, MessageBoxOptions options)
 		{
 			MessageBoxForm form = new MessageBoxForm (null, text, caption,
-				buttons, icon, defaultButton, options);
+					buttons, icon, defaultButton, options);
 				
 			return form.RunDialog ();
 		}
 
 		public static DialogResult Show (IWin32Window owner, string text, string caption,
-			MessageBoxButtons buttons, MessageBoxIcon icon,
-			MessageBoxDefaultButton defaultButton, MessageBoxOptions options)
+				MessageBoxButtons buttons, MessageBoxIcon icon,
+				MessageBoxDefaultButton defaultButton, MessageBoxOptions options)
 		{
 			MessageBoxForm form = new MessageBoxForm (owner, text, caption,
-				buttons, icon, defaultButton, options);
+					buttons, icon, defaultButton, options);
 				
 			return form.RunDialog ();
 		}
+		#endregion	// Public Static Methods
 	}
 }
+