private void dgvServers_CellContentDoubleClick(object sender, DataGridViewCellEventArgs e)
{
if (e.ColumnIndex < 0 || e.RowIndex < 0)
{
return;
}
var sd = (dgvServers[e.ColumnIndex, e.RowIndex].OwningRow.Tag as ServerDescription);
if (sd != null)
{
if (sd.RequiresPassword)
{
if (passwordForm == null)
{
passwordForm = new FlyoutForm(panServerPassword);
}
passwordForm.Tag = sd;
passwordForm.Flyout();
}
else
{
lastConnectionReturnToServerBrowser = true;
StartClientMode(sd.EndPoint, "");
}
}
}
/////////////////////////////////////////////////////////////////////
// CONSTRUCTOR
/////////////////////////////////////////////////////////////////////
public EditorForm()
{
InitializeComponent();
if (IsDesignMode)
{
return;
}
//title
lblTitle.Font = App.Theme.Titles.Large.Regular;
//splash panel
panMenuPage.Dock = DockStyle.Fill;
//colours
btnServerNew.Accent = btnServerExisting.Accent = 2;
btnServerTemporary.Accent = 3;
lblAbout.ForeColor = lblVersion.ForeColor = App.Theme.Background.Light.Colour;
//about link
lblAbout.Cursor = Cursors.Hand;
lblAbout.Font = App.Theme.Controls.Normal.Underline;
lblAbout.MouseEnter += (s, e) => { lblAbout.ForeColor = App.Theme.Foreground.Mid.Colour; };
lblAbout.MouseLeave += (s, e) => { lblAbout.ForeColor = App.Theme.Background.Light.Colour; };
lblAbout.Click += (s, e) => { App.Website.LaunchWebsite(); };
//version label
lblVersion.Text = "v" + Marzersoft.Text.REGEX_VERSION_REPEATING_ZEROES.Replace(App.AssemblyVersion.ToString(), "");
if (lblVersion.Text.IndexOf('.') == -1)
{
lblVersion.Text += ".0";
}
//client connection/server browser panel
btnClient.TextAlign = btnServerNew.TextAlign = btnServerExisting.TextAlign
= btnServerTemporary.TextAlign = ContentAlignment.MiddleCenter;
btnClientConnect.Image = App.Images.Resource("next");
btnClientCancel.Image = App.Images.Resource("previous");
btnClientConnect.ImageAlign = btnClientCancel.ImageAlign = ContentAlignment.MiddleCenter;
tbClientAddress.Font = tbClientPassword.Font = tbServerPassword.Font
= nudClientUpdateInterval.Font = App.Theme.Monospaced.Normal.Regular;
tbClientAddress.BackColor = tbClientPassword.BackColor = tbServerPassword.BackColor
= nudClientUpdateInterval.BackColor = App.Theme.Background.Light.Colour;
tbClientAddress.ForeColor = tbClientPassword.ForeColor = tbServerPassword.ForeColor
= nudClientUpdateInterval.ForeColor = App.Theme.Foreground.BaseColour;
lblManualEntry.Font = lblServerBrowser.Font = App.Theme.Controls.Large.Regular;
panServerBrowserPage.Dock = DockStyle.Fill;
dgvServers.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft;
dgvServers.Columns[1].DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft;
dgvServers.ShowCellToolTips = true;
//'connecting' page
panConnectingPage.Dock = DockStyle.Fill;
lblConnectingStatus.Width = panConnectingPage.ClientSize.Width - 10;
btnConnectingReconnect.Image = App.Images.Resource("refresh");
btnConnectingBack.Image = App.Images.Resource("previous");
//file dialog filters
FileFilterFactory filterFactory = new FileFilterFactory();
filterFactory.Add("Text files", "txt");
filterFactory.Add("C# files", "cs");
filterFactory.Add("C/C++ files", "cpp", "h", "hpp", "cxx", "cc", "c", "inl", "inc", "rc", "hxx");
filterFactory.Add("Log files", "log");
filterFactory.Add("Javacode files", "java");
filterFactory.Add("Javascript files", "js");
filterFactory.Add("Visual Basic files", "vb", "vbs");
filterFactory.Add("Web files", "htm", "html", "xml", "css", "htaccess", "php");
filterFactory.Add("XML files", "xml", "xsl", "xslt", "xsd", "dtd");
filterFactory.Add("PHP scripts", "php");
filterFactory.Add("SQL scripts", "sql");
filterFactory.Add("Luascript files", "lua");
filterFactory.Add("Shell scripts", "bat", "sh", "ps");
filterFactory.Add("Settings files", "ini", "config", "cfg", "conf", "reg");
filterFactory.Add("Shader files", "hlsl", "glsl", "fx", "csh", "cshader", "dsh", "dshader",
"gsh", "gshader", "hlsli", "hsh", "hshader", "psh", "pshader", "vsh", "vshader");
filterFactory.Apply(dlgServerCreateNew);
filterFactory.Apply(dlgServerOpenExisting);
//form styles
FormBorderStyle = FormBorderStyle.None;
TextFlourishes = false;
Text = App.Name;
CustomTitleBar = true;
ResizeHandleOverride = true;
IconOverride = (b) => { return(null); };
flatIconImage = App.Images.Resource("otex_icon_flat", App.Assembly, "OTEX");
ImageOverride = (b) => { return(flatIconImage); };
//settings menu
settingsForm = new FlyoutForm(panSettings);
settingsForm.Accent = 3;
settingsButton = AddCustomTitleBarButton();
settingsButton.Colour = App.Theme.GetAccent(3).DarkDark.Colour;
settingsButton.Image = App.Images.Resource("cog", App.Assembly, "OTEX");
settingsButton.OnClick += (b) => { settingsForm.Flyout(PointToScreen(b.Bounds.BottomMiddle())); };
//logout button
logoutButton = AddCustomTitleBarButton();
logoutButton.Colour = Color.Red;
logoutButton.Image = App.Images.Resource("logout", App.Assembly, "OTEX");
logoutButton.Visible = false;
logoutButton.OnClick += (b) =>
{
if (otexServer.Running && otexServer.ClientCount > 1 &&
!Logger.WarningQuestion("You are currently running in server mode. "
+ "Leaving the session will disconnect the other {0} connected users.\n\nLeave session?", otexServer.ClientCount - 1))
{
return;
}
otexClient.Disconnect();
otexServer.Stop();
};
// CREATE OTEX SERVER ///////////////////////////////////////////////
/*
* COMP7722: The OTEX Server is a self-contained class. "Host-mode" (i.e.
* allowing a user to edit a load and edit a document using OTEX Editor without
* first launching a dedicated server) simply launches a server and a client and
* directly connects them together internally.
*/
otexServer = new Server();
otexServer.OnThreadException += (s, e) =>
{
Logger.W("Server: {0}: {1}", e.InnerException.GetType().FullName, e.InnerException.Message);
};
otexServer.OnStarted += (s) =>
{
Logger.I("Server: started for {0} on port {1}", s.FilePath, s.Port);
};
otexServer.OnClientConnected += (s, id) =>
{
Logger.I("Server: Client {0} connected.", id);
};
otexServer.OnClientDisconnected += (s, id) =>
{
Logger.I("Server: Client {0} disconnected.", id);
};
otexServer.OnStopped += (s) =>
{
Logger.I("Server: stopped.");
};
otexServer.OnFileSynchronized += (s) =>
{
Logger.I("Server: File synchronized.");
};
// CREATE OTEX CLIENT ///////////////////////////////////////////////
/*
* COMP7722: Like the server, the OTEX Client is a self-contained class.
* All of the editor and OT functionality is handled via callbacks.
*/
otexClient = new Client();
otexClient.UpdateInterval = (float)nudClientUpdateInterval.Value;
otexClient.OnThreadException += (c, e) =>
{
Logger.W("Client: {0}: {1}", e.InnerException.GetType().Name, e.InnerException.Message);
};
otexClient.OnConnected += (c) =>
{
Logger.I("Client: connected to {0}:{1}.", c.ServerAddress, c.ServerPort);
this.Execute(() =>
{
/*
* COMP7722: when the client first connects, initial textbox contents is set to "",
* but must be done so while operation generation is disabled so
* TextChanging/TextChanged don't do diffs and push operations.
*/
disableOperationGeneration = true;
tbEditor.Text = "";
disableOperationGeneration = false;
string ext = Path.GetExtension(c.ServerFilePath).ToLower();
if (ext.Length > 0 && (ext = ext.Substring(1)).Length > 0)
{
switch (ext)
{
case "cs": tbEditor.Language = Language.CSharp; break;
case "htm": tbEditor.Language = Language.HTML; break;
case "html": tbEditor.Language = Language.HTML; break;
case "js": tbEditor.Language = Language.JS; break;
case "lua": tbEditor.Language = Language.Lua; break;
case "php": tbEditor.Language = Language.PHP; break;
case "sql": tbEditor.Language = Language.SQL; break;
case "vb": tbEditor.Language = Language.VB; break;
case "vbs": tbEditor.Language = Language.VB; break;
case "xml": tbEditor.Language = Language.XML; break;
default: tbEditor.Language = Language.Custom; break;
}
}
else
{
tbEditor.Language = Language.Custom;
}
logoutButton.Visible = true;
EditorPage = true;
tbEditor.Focus();
}, false);
};
otexClient.OnRemoteOperations += (c, operations) =>
{
/*
* COMP7722: this event handler is fired when an OTEX Client receives remote
* operations from the server (they're already transformed internally, and just need
* to be applied).
*
* The "Execute" function is an extension method that ensures whatever delegate function
* is passed in will always be run on the main UI thread of a windows forms application,
* so this ensures the user is prevented from typing while the remote operations are
* being applied (virtually instantaneous).
*/
this.Execute(() =>
{
disableOperationGeneration = true;
foreach (var operation in operations)
{
if (operation.IsInsertion)
{
tbEditor.InsertTextAndRestoreSelection(
new Range(tbEditor, tbEditor.PositionToPlace(operation.Offset),
tbEditor.PositionToPlace(operation.Offset)),
operation.Text, null);
}
else if (operation.IsDeletion)
{
tbEditor.InsertTextAndRestoreSelection(
new Range(tbEditor, tbEditor.PositionToPlace(operation.Offset),
tbEditor.PositionToPlace(operation.Offset + operation.Length)),
"", null);
}
}
disableOperationGeneration = false;
}, false);
};
otexClient.OnMetadataUpdated += (c, id, md) =>
{
lock (remoteClients)
{
remoteClients[id] = md.Deserialize <EditorClient>();
}
this.Execute(() => { tbEditor.Refresh(); });
};
otexClient.OnDisconnected += (c, serverSide) =>
{
Logger.I("Client: disconnected{0}.", serverSide ? " (connection closed by server)" : "");
lock (remoteClients)
{
remoteClients.Clear();
}
localClient.SelectionStart = 0;
localClient.SelectionEnd = 0;
if (!closing)
{
this.Execute(() =>
{
//non-host
if (serverSide)
{
if (lastConnectionEndpoint != null)
{
ConnectionLostPage = true;
}
else
{
MainMenuPage = true;
}
}
else
{
MainMenuPage = true;
}
Text = App.Name;
logoutButton.Visible = false;
});
}
};
// CREATE OTEX SERVER LISTENER //////////////////////////////////////
/*
* COMP7722: I've given OTEX Servers the ability to advertise their existence to the
* local network over UDP, so the ServerListener is a simple UDP listener. When new servers
* are identified, or known servers change in some way, events are fired.
*/
try
{
otexServerListener = new ServerListener();
otexServerListener.OnThreadException += (sl, e) =>
{
Logger.W("ServerListener: {0}: {1}", e.InnerException.GetType().FullName, e.InnerException.Message);
};
otexServerListener.OnServerAdded += (sl, s) =>
{
Logger.I("ServerListener: new server {0}: {1}", s.ID, s.EndPoint);
this.Execute(() =>
{
var row = dgvServers.AddRow(s.Name.Length > 0 ? s.Name : "OTEX Server", s.TemporaryDocument ? "Yes" : "", s.EndPoint.Address,
s.EndPoint.Port, s.RequiresPassword ? "Yes" : "", string.Format("{0} / {1}", s.ClientCount, s.MaxClients), 0);
row.Tag = s;
s.Tag = row;
});
s.OnUpdated += (sd) =>
{
Logger.I("ServerDescription: {0} updated.", sd.ID);
this.Execute(() =>
{
(s.Tag as DataGridViewRow).Update(s.Name.Length > 0 ? s.Name : "OTEX Server", s.TemporaryDocument ? "Yes" : "", s.EndPoint.Address,
s.EndPoint.Port, s.RequiresPassword ? "Yes" : "", string.Format("{0} / {1}", s.ClientCount, s.MaxClients), 0);
});
};
s.OnInactive += (sd) =>
{
Logger.I("ServerDescription: {0} inactive.", sd.ID);
this.Execute(() =>
{
var row = (s.Tag as DataGridViewRow);
row.DataGridView.Rows.Remove(row);
row.Tag = null;
s.Tag = null;
});
};
};
}
catch (Exception exc)
{
Logger.ErrorMessage("An error occurred while creating the server listener:\n\n{0}"
+ "\n\nYou can still use OTEX Editor, but the \"Public Documents\" list will be empty.",
exc.Message);
return;
}
// CREATE TEXT EDITOR ////////////////////////////////////////////////
tbEditor = new FastColoredTextBox();
tbEditor.Parent = this;
tbEditor.Dock = DockStyle.Fill;
tbEditor.BackBrush = App.Theme.Background.Mid.Brush;
tbEditor.IndentBackColor = App.Theme.Background.Dark.Colour;
tbEditor.ServiceLinesColor = App.Theme.Background.Light.Colour;
tbEditor.Font = new Font(App.Theme.Monospaced.Normal.Regular.FontFamily, 11.0f);
tbEditor.WordWrap = true;
tbEditor.WordWrapAutoIndent = true;
tbEditor.WordWrapMode = WordWrapMode.WordWrapControlWidth;
tbEditor.TabLength = 4;
tbEditor.LineInterval = 2;
tbEditor.HotkeysMapping.Remove(Keys.Control | Keys.H); //remove default "replace" (CTRL + H, wtf?)
tbEditor.HotkeysMapping[Keys.Control | Keys.R] = FCTBAction.ReplaceDialog; // CTRL + R for replace
tbEditor.HotkeysMapping[Keys.Control | Keys.Y] = FCTBAction.Undo; // CTRL + Y for undo
/*
* COMP7722: In this editor example, Operations are not generated by directly
* intercepting key press events and the like, since they do not take special
* circumstances like Undo, Redo, and text dragging with the mouse into account. Instead,
* I've used a Least-Common-Substring-based diff generator (in this case, a package
* called DiffPlex: https://www.nuget.org/packages/DiffPlex/) to compare text pre-
* and post-change, and create the operations based on the calculated diffs.
*
* This does of course cause a slight overhead; in testing with large documents
* (3.5mb of plain text, which is a lot!), diff calculation took ~100ms. Documents that
* were more realistically-sized took ~3ms (on the same machine), which is imperceptible.
*
* I've also implemented some basic awareness painting, so the current position, line
* and selection of other editors will be rendered (see PaintLine).
*/
tbEditor.TextChanging += (sender, args) =>
{
if (disableOperationGeneration || !otexClient.Connected)
{
return;
}
//cache previous version of the text
previousText = tbEditor.Text;
};
tbEditor.TextChanged += (sender, args) =>
{
if (disableOperationGeneration || !otexClient.Connected)
{
return;
}
//do diff on two versions of text
var currentText = tbEditor.Text;
var diffs = differ.CreateCharacterDiffs(previousText, currentText, false, false);
//convert changes into operations
int position = 0;
foreach (var diff in diffs.DiffBlocks)
{
//skip unchanged characters
position = Math.Min(diff.InsertStartB, currentText.Length);
//process a deletion
if (diff.DeleteCountA > 0)
{
otexClient.Delete((uint)position, (uint)diff.DeleteCountA);
}
//process an insertion
if (position < (diff.InsertStartB + diff.InsertCountB))
{
otexClient.Insert((uint)position, currentText.Substring(position, diff.InsertCountB));
}
}
};
tbEditor.SelectionChanged += (s, e) =>
{
if (!otexClient.Connected)
{
return;
}
var sel = tbEditor.Selection;
localClient.SelectionStart = tbEditor.PlaceToPosition(sel.Start);
localClient.SelectionEnd = tbEditor.PlaceToPosition(sel.End);
PushUpdatedMetadata();
};
tbEditor.PaintLine += (s, e) =>
{
if (!otexClient.Connected || remoteClients.Count == 0)
{
return;
}
Range lineRange = new Range(tbEditor, e.LineIndex);
lock (remoteClients)
{
var len = tbEditor.TextLength;
foreach (var kvp in remoteClients)
{
//check range
var selStart = tbEditor.PositionToPlace(kvp.Value.SelectionStart.Clamp(0, len));
var selEnd = tbEditor.PositionToPlace(kvp.Value.SelectionEnd.Clamp(0, len));
var selRange = new Range(tbEditor, selStart, selEnd);
var range = lineRange.GetIntersectionWith(selRange);
if (range.Length == 0 && !lineRange.Contains(selStart))
{
continue;
}
var ptStart = tbEditor.PlaceToPoint(range.Start);
var ptEnd = tbEditor.PlaceToPoint(range.End);
var caret = lineRange.Contains(selStart);
int colour = kvp.Value.Colour & 0x00FFFFFF;
//draw "current line" fill
if (caret && selRange.Length == 0)
{
using (SolidBrush b = new SolidBrush((colour | 0x09000000).ToColour()))
e.Graphics.FillRectangle(b, e.LineRect);
}
//draw highlight
if (range.Length > 0)
{
using (SolidBrush b = new SolidBrush((colour | 0x20000000).ToColour()))
e.Graphics.FillRectangle(b, new Rectangle(ptStart.X, e.LineRect.Y,
ptEnd.X - ptStart.X, e.LineRect.Height));
}
//draw caret
if (caret)
{
ptStart = tbEditor.PlaceToPoint(selStart);
using (Pen p = new Pen((colour | 0xBB000000).ToColour()))
{
p.Width = 2;
e.Graphics.DrawLine(p, ptEnd.X, e.LineRect.Top,
ptEnd.X, e.LineRect.Bottom);
}
}
}
}
};
// CLIENT COLOURS ////////////////////////////////////////////////////
cbClientColour.RegenerateItems(
false, //darks
true, //mids
false, //lights
false, //transparents
false, //monochromatics
0.15f, //similarity threshold
new Color[] { Color.Blue, Color.MediumBlue, Color.Red, Color.Fuchsia, Color.Magenta } //exlude (colours that contrast poorly with the app theme)
);
var cols = cbClientColour.Items.OfType <Color>().ToList();
var col = otexClient.ID.ToColour(cols.ToArray());
ClientColour = col;
cbClientColour.SelectedIndex = cols.IndexOf(col);
}