MODULE WMV24Component; (** AUTHOR "TF/staubesv"; PURPOSE "Terminal"; *)
(**
 * History:
 *	19.01.2006	Adapted to Serials, added clear button, synchronize operations to V24Panel.open (staubesv)
 *	10.06.2006	Added YSend functionality, use XYModem.Mod instead of XModem.Mod, command button
 *	14.06.2006 	Busy loop removed, made window restorable (staubesv)
 *	15.06.2006	Support to paste to terminal window from clipboard, cursor always at the end of the text, keyboard focus indication, added scrollbar (staubesv)
 *	16.06.2006	Added SendCommand functionality (staubesv)
 *	21.06.2006	Improved error reporting (staubesv)
 *	22.06.2006	Added LineFeed and UseBackspace options, added status bar (staubesv)
 *	05.09.2006	Relay all keys to serial port, added copy&paste buttons since shortcuts are relayed to text view anymore,
 *				don't send command if port is not open, configuration can be specified in Configuration.XML (staubesv)
 *	25.09.2006	Added XY modem receive & echo capability (staubesv)
 *	20.02.2007	Better usability for selection, can send multiple files via XY-Modem protocol (staubesv)
 *	25.06.2007	Open progress windows on current view (staubesv)
 *
 * TODO:
 *
 * Sometimes, not all data that is received is displayed until the user sends a character to the device (The data is really receive, w.Char and w.Update
 * are both called but the content of the writer w are not displayed). FIX!
 *)

IMPORT
	KernelLog, Objects, Streams, Configuration, Texts, TextUtilities, Strings,
	Modules, Kernel, Serials, XYModem, Files, Inputs,
	WMWindowManager, WMMessages, WMRestorable, WMGraphics, WMRectangles,
	WMComponents, WMStandardComponents, WMProgressComponents, WMTextView, WMEditors, WMPopups, WMDialogs,
	XML, XMLObjects, WMSearchComponents, Commands, V24, T := Trace;

CONST

	(* Terminal Configuration - The default configuration is overriden by the configuration in Configuration.XML if available *)

	(* Default size of window at start up *)
	DefaultWidth = 800; DefaultHeight = 400;

	(* Default serial port settings *)
	DefaultPort = 1;
	DefaultBps = 115200;
	DefaultDataBits = 8;
	DefaultParity = Serials.ParNo;
	DefaultStopBits = Serials.Stop1;

	(* If TRUE, the terminal panel is grey when it has no keyboard focus *)
	DefaultIndicateKeyboardFocus = TRUE;

	(* If TRUE, some CTRL-key combinations are intercepted by the terminal window but not sent to the stream *)
	DefaultShortcutsEnabled = FALSE;

	(* Display status bar with error & port status indication? *)
	DefaultShowStatusBar = TRUE;

	(* Send <CR><LF> when the user presses <CR>. Also send <CR><LF> instead of <CR> when sending commands *)
	DefaultLineFeed = FALSE;

	(* The window manager reports a DEL key pressed when pressing backspace. If TRUE, the terminal sends backspaces instead of deletes *)
	DefaultUseBackspace = TRUE;

	(* Should received characters be sent back? *)
	DefaultEcho = FALSE;

	(* Is UTF support is disabled, all non-ascii characters are replaced by the character "." *)
	DefaultUTF8Support = FALSE;

	(* Internal terminal configuration *)

	(* How often should the port status be polled? *)
	UpdateInterval = 200; (* ms *)

	ReceiveBufferSize = 1024;

	(* Trace Configuration *)

	TraceCharactersSent = {0};
	TraceCharactersReceived = {1};

	Trace = {};

	(* Internal Constants *)

	Backspace = 08X;
	CR = 0DX;
	LF = 0AX;
	ESC = 1BX;
	DEL = 7FX;

	(* Lock *)
	Free = 0;
	Terminal = 1;
	DataTransfer = 2;

	ModuleName = "WMV24Component";

TYPE

	Settings = OBJECT
	VAR
		portSettings : ARRAY 64 OF CHAR;
		indicateKeyboardFocus : BOOLEAN;
		showStatusBar : BOOLEAN;
		shortcutsEnabled : BOOLEAN;
		linefeed : BOOLEAN;
		echo : BOOLEAN;
		utf8Support : BOOLEAN;
		useBackspace : BOOLEAN;
		xReceiveCommand, yReceiveCommand : Strings.String;
		xSendCommand, ySendCommand : Strings.String;

		(* Load settings from Configuration.XML. For settings that are not available, default settings are used *)
		PROCEDURE Load;
		VAR
			value, temp : ARRAY 256 OF CHAR;
			res : LONGINT;
		BEGIN
			Configuration.Get("Applications.WMV24Component.PortSettings", value, res);
			IF (res = Configuration.Ok) THEN COPY(value, portSettings); END;

			Configuration.GetBoolean("Applications.WMV24Component.IndicateKeyboardFocus", indicateKeyboardFocus, res);
			Configuration.GetBoolean("Applications.WMV24Component.LineFeed", linefeed, res);
			Configuration.GetBoolean("Applications.WMV24Component.UseBackspace", useBackspace, res);
			Configuration.GetBoolean("Applications.WMV24Component.ShowStatusBar", showStatusBar, res);
			Configuration.GetBoolean("Applications.WMV24Component.ShortcutsEnabled", shortcutsEnabled, res);
			Configuration.GetBoolean("Applications.WMV24Component.Echo", echo, res);
			Configuration.GetBoolean("Applications.WMV24Component.UTF8Support", utf8Support, res);

			Configuration.Get("Applications.WMV24Component.XReceiveCommand", value, res);
			COPY(value, temp); Strings.TrimWS(temp);
			IF (res = Configuration.Ok) & (temp # "") THEN xReceiveCommand := Strings.NewString(value); END;

			Configuration.Get("Applications.WMV24Component.YReceiveCommand", value, res);
			COPY(value, temp); Strings.TrimWS(temp);
			IF (res = Configuration.Ok) & (temp # "") THEN yReceiveCommand := Strings.NewString(value); END;

			Configuration.Get("Applications.WMV24Component.XSendCommand", value, res);
			COPY(value, temp); Strings.TrimWS(temp);
			IF (res = Configuration.Ok) & (temp # "") THEN xSendCommand := Strings.NewString(value); END;

			Configuration.Get("Applications.WMV24Component.YSendCommand", value, res);
			COPY(value, temp); Strings.TrimWS(temp);
			IF (res = Configuration.Ok) & (temp # "")  THEN ySendCommand := Strings.NewString(value); END;
		END Load;

		PROCEDURE GetDefaultPortSettings(VAR portSettings : ARRAY OF CHAR);
		VAR w : Streams.StringWriter;
		BEGIN
			NEW(w, 64);
			w.Int(DefaultPort, 0); w.Char(" ");
			w.Int(DefaultBps, 0); w.Char(" ");
			w.Int(DefaultDataBits, 0); w.Char(" ");
			w.Int(DefaultStopBits, 0); w.Char(" ");
			CASE DefaultParity OF
				|Serials.ParNo: w.String("none");
				|Serials.ParOdd: w.String("odd");
				|Serials.ParEven: w.String("even");
				|Serials.ParMark: w.String("mark");
				|Serials.ParSpace: w.String("space");
			ELSE
				w.String("unknown");
			END;
			w.Get(portSettings);
		END GetDefaultPortSettings;

		PROCEDURE &Init*;
		BEGIN
			GetDefaultPortSettings(portSettings);
			indicateKeyboardFocus := DefaultIndicateKeyboardFocus;
			linefeed := DefaultLineFeed;
			useBackspace := DefaultUseBackspace;
			showStatusBar := DefaultShowStatusBar;
			shortcutsEnabled := DefaultShortcutsEnabled;
			echo := DefaultEcho;
			utf8Support := DefaultUTF8Support;
			xReceiveCommand := NIL;
			yReceiveCommand := NIL;
			xSendCommand := NIL;
			ySendCommand := NIL;
		END Init;

	END Settings;

TYPE

	(* Recursive lock. This lock is used to provide exclusive access to the currently opened serial port to either
	 * the Terminal or data transfer operation *)
	Lock = OBJECT
	VAR
		lock : LONGINT;
		locklevel : LONGINT;

		PROCEDURE TryAcquire(lock : LONGINT) : BOOLEAN;
		BEGIN {EXCLUSIVE}
			IF (SELF.lock # Free) & (SELF.lock # lock) THEN
				RETURN FALSE;
			ELSE
				TakeLock(lock);
				RETURN TRUE;
			END;
		END TryAcquire;

		PROCEDURE Acquire(lock : LONGINT);
		BEGIN {EXCLUSIVE}
			IF (SELF.lock # Free) & (SELF.lock # lock) THEN
				AWAIT(SELF.lock=Free);
			END;
			TakeLock(lock);
		END Acquire;

		PROCEDURE Release;
		BEGIN {EXCLUSIVE}
			ASSERT(locklevel > 0);
			DEC(locklevel);
			IF locklevel = 0 THEN lock := Free; END;
		END Release;

		PROCEDURE TakeLock(lock : LONGINT);
		BEGIN (* only call from critical sections !*)
			IF SELF.lock = lock THEN
				INC(locklevel);
			ELSE
				SELF.lock := lock; locklevel := 1;
			END;
		END TakeLock;

		PROCEDURE &Init*;
		BEGIN
			lock := Free; locklevel := 0;
		END Init;

	END Lock;

TYPE

	Command = POINTER TO RECORD
		name : ARRAY 64 OF CHAR;
		commandString : ARRAY 256 OF CHAR;
		next : Command;
	END;

TYPE

	ProgressInfo = OBJECT(WMComponents.VisualComponent)
	VAR
		progressBar : WMProgressComponents.ProgressBar;
		filenameLabel : WMStandardComponents.Label;
		progressLabel : WMStandardComponents.Label;
		currentBytes, maxBytes : LONGINT;

		w : Streams.StringWriter;
		string : ARRAY 128 OF CHAR;

		PROCEDURE SetProgress(progress : LONGINT);
		BEGIN
			w.Reset;
			w.String("Received "); w.Int(progress, 0);
			IF maxBytes > 0 THEN
				w.String(" of "); w.Int(maxBytes, 0); w.String(" Bytes");
				progressBar.SetCurrent(progress);
			ELSE
				w.String(" Bytes");
			END;
			w.Get(string);
			progressLabel.caption.SetAOC(string);
		END SetProgress;

		PROCEDURE &New*(CONST filename : ARRAY OF CHAR; length : LONGINT);
		VAR panel : WMStandardComponents.Panel;
		BEGIN
			Init;
			NEW(w, 128);
			currentBytes := 0; maxBytes := length;

			NEW(panel); panel.fillColor.Set(0FFFFFFFFH); panel.bounds.SetExtents(300, 60); panel.alignment.Set(WMComponents.AlignClient);
			AddContent(panel);

			NEW(filenameLabel); filenameLabel.bounds.SetHeight(20); filenameLabel.alignment.Set(WMComponents.AlignTop);
			filenameLabel.caption.SetAOC(filename);
			panel.AddContent(filenameLabel);

			NEW(progressLabel); progressLabel.bounds.SetHeight(20); progressLabel.alignment.Set(WMComponents.AlignTop);
			panel.AddContent(progressLabel);

			IF maxBytes > 0 THEN
				NEW(progressBar); progressBar.bounds.SetHeight(20); progressBar.alignment.Set(WMComponents.AlignTop);
				progressBar.SetRange(0, maxBytes);
				panel.AddContent(progressBar);
			END;

			SetProgress(0);

			SetNameAsString(StrProgressInfo);
		END New;

	END ProgressInfo;

TYPE

	(* The cursor position of this textview cannot be changed using the mouse pointer *)
	CustomTextView = OBJECT(WMTextView.TextView)
	VAR
		selecting, selectWords, dragPossible  : BOOLEAN;
		lastPos : LONGINT;
		downX, downY : LONGINT;

		utilreader : Texts.TextReader;

		text : Texts.Text;

		PROCEDURE SetText*(text : Texts.Text);
		BEGIN
			SetText^(text);
			SELF.text := text;
			NEW(utilreader, text);
		END SetText;

		PROCEDURE PointerDown*(x, y : LONGINT; keys : SET);
		VAR pos : LONGINT;
		BEGIN
			IF keys * {0, 1, 2} = {2} THEN
				ShowContextMenu(x, y) END;
			IF 0 IN keys THEN
				text.AcquireRead;
				ViewToTextPos(x, y, pos);
				dragPossible := FALSE; selectWords := FALSE;
				IF pos >= 0 THEN
					selection.Sort;
					IF (pos >= selection.a) & (pos < selection.b) THEN
						dragPossible := TRUE; downX := x; downY := y
					ELSE
						(* clicking the same position twice --> Word Selection Mode *)
						IF pos = lastPos THEN
							selectWords := TRUE;
							selection.SetFromTo(TextUtilities.FindPosWordLeft(utilreader, pos - 1),
									TextUtilities.FindPosWordRight(utilreader, pos + 1))
						ELSE
							selection.SetFromTo(pos, pos) (* reset selection *)
						END;
						selecting := TRUE
					END
				END;
				lastPos := pos;
				text.ReleaseRead;
			END;
		END PointerDown;

		PROCEDURE PointerMove*(x, y : LONGINT; keys : SET);
		CONST DragDist = 5;
		VAR pos : LONGINT;
		BEGIN
			IF dragPossible THEN
				IF (ABS(x - downX) > DragDist) OR (ABS(y - downY) > DragDist) THEN dragPossible := FALSE; AutoStartDrag END
			ELSE
				IF selecting THEN
					text.AcquireRead;
					ViewToTextPos(x, y, pos);
					IF selecting THEN
						IF selectWords THEN
							IF pos < selection.from.GetPosition() THEN pos := TextUtilities.FindPosWordLeft(utilreader, pos - 1);
							ELSE pos := TextUtilities.FindPosWordRight(utilreader, pos + 1)
							END;
							selection.SetTo(pos)
						ELSE
							selection.SetTo(pos);
						END;
						Texts.SetLastSelection(text, selection.from, selection.to);
					END;
					text.ReleaseRead;
				END;
			END
		END PointerMove;

		PROCEDURE PointerUp*(x, y : LONGINT; keys : SET);
		BEGIN
			selecting := FALSE;
			IF dragPossible THEN selection.SetFromTo(0, 0); Texts.ClearLastSelection (* reset selection *) END;
			dragPossible := FALSE
		END PointerUp;

		PROCEDURE &Init*;
		BEGIN
			Init^;
			SetNameAsString(StrCustomTextView);
		END Init;

	END CustomTextView;

TYPE

	TerminalComponent = OBJECT(WMComponents.VisualComponent)
	VAR
		settings : Settings;

		(* Access to serial port *)
		in : Streams.Reader;
		out : Streams.Writer;

		port : Serials.Port;
		portNr, bps, databits, parity, stop : LONGINT;
		open : BOOLEAN;

		lock : Lock;

		(* Terminal window text writer *)
		w : TextUtilities.TextWriter;

		textView : CustomTextView;
		text : Texts.Text;

		searchPanel : WMSearchComponents.SearchPanel;

		(* Upper Toolbar *)
		opencloseBtn : WMStandardComponents.Button;
		settingsEdit : WMEditors.Editor;
		sendXBtn, sendYBtn : WMStandardComponents.Button;
		receiveXBtn, receiveYBtn : WMStandardComponents.Button;

		(* Lower Toolbar *)
		lowerToolBar : WMStandardComponents.Panel;
		sendCommandBtn : WMStandardComponents.Button;
		sendCommandEditor : WMEditors.Editor;
		commandPopup : WMPopups.Popup; (* can be NIL *)
		commandMenuBtn : WMStandardComponents.Button;

		(* Status Bar *)
		status : WMStandardComponents.Label;
		dsr : WMStandardComponents.Label;
		clearStatusBtn : WMStandardComponents.Button;

		(* Error Counters *)
		overrunErrors, framingErrors, parityErrors, breakInterrupts, transportErrors, otherErrors : LONGINT;

		statusUpdater : StatusUpdater;

		running : BOOLEAN;
		timer : Kernel.Timer;

		PROCEDURE Handle*(VAR m: WMMessages.Message);
		BEGIN
			IF m.msgType = WMMessages.MsgKey THEN
				IF ~settings.shortcutsEnabled OR ~HandleShortcut(m.x, m.flags, m.y) THEN
					Handle^(m);
				END;
			ELSE Handle^(m)
			END
		END Handle;

		PROCEDURE HandleCommandMenuButton(sender, data : ANY);
		VAR buttonBounds, panelBounds: WMRectangles.Rectangle; gx, gy : LONGINT;
		BEGIN
			buttonBounds := commandMenuBtn.bounds.Get();
			panelBounds := bounds.Get();
			ToWMCoordinates(panelBounds.l + buttonBounds.l, panelBounds.t + buttonBounds.b, gx, gy);
			commandPopup.Popup(gx,gy);
		END HandleCommandMenuButton;

		PROCEDURE HandleCommandPopup(sender, data : ANY);
		VAR command : Command;
		BEGIN
			IF (data # NIL) & (data IS Command) & open THEN
				command := data (Command);
				lock.Acquire(Terminal);
				out.String(command.commandString); out.Char(CR);
				IF settings.linefeed THEN out.Char(LF); END;
				out.Update;
				lock.Release;
			END;
		END HandleCommandPopup;

		PROCEDURE HandleSendCommandButton(sender, data : ANY);
		VAR commandString : ARRAY 1024 OF CHAR;
		BEGIN
			sendCommandEditor.GetAsString(commandString);
			IF open & (commandString # "") THEN
				lock.Acquire(Terminal);
				out.String(commandString); out.Char(CR);
				IF settings.linefeed THEN out.Char(LF); END;
				out.Update;
				lock.Release;
				sendCommandEditor.SetAsString("");
			END;
		END HandleSendCommandButton;

		PROCEDURE HandleClearStatusButton(sender, data : ANY);
		BEGIN
			ResetStatus;
		END HandleClearStatusButton;

		PROCEDURE HandleSearchButton(sender, data : ANY);
		VAR searchString : WMSearchComponents.SearchString;
		BEGIN
			searchPanel.visible.Set(TRUE);
			searchPanel.SetToLastSelection;
			searchPanel.searchEdit.GetAsString(searchString);
			IF (searchString # "") THEN
				searchPanel.SearchHandler(NIL, NIL);
			ELSE
				searchPanel.searchEdit.SetFocus;
			END;
		END HandleSearchButton;

		PROCEDURE HandleClearButton(sender, data : ANY);
		BEGIN
			text.AcquireWrite;
			text.Delete(0, text.GetLength());
			textView.firstLine.Set(0); textView.cursor.SetPosition(0);
			text.ReleaseWrite
		END HandleClearButton;

		PROCEDURE HandleCopyButton(sender, data : ANY);
		BEGIN
			textView.CopySelection;
		END HandleCopyButton;

		PROCEDURE HandlePasteButton(sender, data : ANY);
		BEGIN
			IF open THEN
				CopyFromClipboard;
			ELSE
				WMDialogs.Error("Terminal", "Port is not open");
				RETURN;
			END;
		END HandlePasteButton;

		PROCEDURE HandleXYButtons(sender, data : ANY);
		VAR
			button : WMStandardComponents.Button;
			command : Strings.String;
			filename, msg : ARRAY 512 OF CHAR;
			filenames : Strings.StringArray;
			mode, i : LONGINT;
			send : BOOLEAN;
		BEGIN
			IF sender IS WMStandardComponents.Button THEN
				button := sender (WMStandardComponents.Button);
				IF button = sendXBtn THEN
					mode := XYModem.XModem; send := TRUE;
				ELSIF button = receiveXBtn THEN
					mode := XYModem.XModem; send := FALSE;
				ELSIF button = sendYBtn THEN
					mode := XYModem.YModem; send := TRUE;
				ELSIF button = receiveYBtn THEN
					mode := XYModem.YModem; send := FALSE;
				ELSE
					HALT(99);
				END;
			ELSE
				HALT(99);
			END;

			IF ~open THEN
				WMDialogs.Error("Terminal", "Port is not open");
				RETURN;
			END;

			IF send THEN msg := "File to send:"; ELSE msg := "File to receive:"; END;

			IF WMDialogs.QueryString(msg, filename) = WMDialogs.ResOk THEN

				filenames := Strings.Split(filename, ";");

				command := GetXYCommand(send, mode);

				IF (LEN(filenames) > 1) & (command = NIL) THEN
					WMDialogs.Error("Terminal", "Multiple files can only be sent if send command is specified");
				ELSE
					FOR i := 0 TO LEN(filenames)-1 DO
						Strings.TrimWS(filenames[i]^);
						IF command # NIL THEN SendXYCommand(send, command^, filenames[i]^); END;
						IF send THEN
							SendXYModem(filenames[i]^, mode);
						ELSE
							ReceiveXYModem(filenames[i]^, mode);
						END;
					END;
				END;
			END;
		END HandleXYButtons;

		PROCEDURE HandleShortcut(ucs : LONGINT; flags : SET; keySym : LONGINT)  : BOOLEAN;
		VAR handled : BOOLEAN;
		BEGIN
			IF ControlKeyDown(flags) THEN
				handled := TRUE;
				IF keySym = 01H THEN (* Ctrl-A *)
					textView.SelectAll;
				ELSIF keySym = 03H THEN (* Ctrl-C *)
					textView.CopySelection;
				ELSIF keySym = 04H THEN (* Ctrl-D *)
					HandleXYButtons(sendYBtn, NIL);
				ELSIF (keySym = 06H) THEN (* CTRL-F *)
					searchPanel.ToggleVisibility;
				ELSIF (keySym= 0EH) THEN (* CTRL-N *)
					searchPanel.HandlePreviousNext(TRUE);
				ELSIF (keySym = 10H) THEN (* CTRL-P *)
					searchPanel.HandlePreviousNext(FALSE);
				ELSE
					handled := FALSE;
				END;
			ELSIF (keySym = Inputs.KsTab) & (flags = {}) THEN (* TAB *)
				handled := searchPanel.HandleTab();
			ELSE
				handled := FALSE;
			END;
			RETURN handled;
		END HandleShortcut;

		PROCEDURE ExtKeyPressed(ucs : LONGINT; flags : SET; VAR keySym : LONGINT; VAR handled : BOOLEAN);
		BEGIN
			textView.SetFlags(flags);
			handled := TRUE;
			IF (ucs > 0) & (ucs < 256) THEN
				IF open & ~(Inputs.Release IN flags) THEN
					IF lock.TryAcquire(Terminal) THEN
						IF Trace * TraceCharactersSent # {} THEN Show("Sending character: "); KernelLog.Int(ucs, 0); KernelLog.Ln; END;
						IF ucs > 127 THEN (* Escape non-ascii characters *)
							out.Char(ESC); out.Char("["); ucs := ucs - 128;
						END;
						IF settings.linefeed & (ucs = ORD(CR)) THEN
							out.Char(CR); out.Char(LF); out.Update;
						ELSIF settings.useBackspace & (ucs = ORD(DEL)) THEN
							out.Char(Backspace); out.Update;
						ELSE
							out.Char(CHR(ucs)); out.Update;
						END;
						lock.Release;
					ELSE
						(* ignore characters *)
					END;
				END;
			END;
		END ExtKeyPressed;

		PROCEDURE ExtFocus(hasFocus : BOOLEAN);
		BEGIN
			IF hasFocus THEN
				FocusReceived;
				IF settings.indicateKeyboardFocus THEN textView.fillColor.Set(00H); END;
			ELSE
				FocusLost;
				IF settings.indicateKeyboardFocus THEN textView.fillColor.Set(0CCCCCCCCH); END;
			END;
		END ExtFocus;

		PROCEDURE CreateUpperToolBar() : WMComponents.VisualComponent;
		VAR toolbar : WMStandardComponents.Panel; label : WMStandardComponents.Label; button : WMStandardComponents.Button;
		BEGIN
			NEW(toolbar);
			toolbar.alignment.Set(WMComponents.AlignTop); toolbar.bounds.SetHeight(20);
			toolbar.fillColor.Set(0E0E0E0FFH);

			NEW(label);
			label.alignment.Set(WMComponents.AlignLeft); label.bounds.SetWidth(50);
			label.caption.SetAOC(" Settings:");
			toolbar.AddContent(label);

			NEW(settingsEdit);
			settingsEdit.alignment.Set(WMComponents.AlignLeft);
			settingsEdit.bounds.SetWidth(110);
			settingsEdit.multiLine.Set(FALSE);
			settingsEdit.tv.textAlignV.Set(WMGraphics.AlignCenter);
			settingsEdit.fillColor.Set(WMGraphics.White);
			settingsEdit.tv.borders.Set(WMRectangles.MakeRect(4, 3, 2, 2));
			settingsEdit.tv.showBorder.Set(TRUE);
			settingsEdit.tv.textAlignV.Set(WMGraphics.AlignCenter);
			settingsEdit.SetAsString(settings.portSettings);
			toolbar.AddContent(settingsEdit);

			(* open/close *)
			NEW(opencloseBtn);
			opencloseBtn.alignment.Set(WMComponents.AlignLeft);
			opencloseBtn.takesFocus.Set(FALSE);
			opencloseBtn.caption.SetAOC("Open");
			opencloseBtn.onClick.Add(ToggleOpen);
			toolbar.AddContent(opencloseBtn);

			NEW(label);
			label.alignment.Set(WMComponents.AlignLeft); label.bounds.SetWidth(65);
			label.caption.SetAOC("  XModem: ");
			toolbar.AddContent(label);

			(* send XModem *)
			NEW(sendXBtn);
			sendXBtn.alignment.Set(WMComponents.AlignLeft);
			sendXBtn.bounds.SetWidth(40);
			sendXBtn.caption.SetAOC("Send");
			sendXBtn.onClick.Add(HandleXYButtons);
			toolbar.AddContent(sendXBtn);

			(* receive XModem *)
			NEW(receiveXBtn);
			receiveXBtn.alignment.Set(WMComponents.AlignLeft);
			receiveXBtn.bounds.SetWidth(40);
			receiveXBtn.caption.SetAOC("Receive");
			receiveXBtn.onClick.Add(HandleXYButtons);
			toolbar.AddContent(receiveXBtn);

			NEW(label);
			label.alignment.Set(WMComponents.AlignLeft); label.bounds.SetWidth(65);
			label.caption.SetAOC("  YModem:");
			toolbar.AddContent(label);

			(* send YModem *)
			NEW(sendYBtn);
			sendYBtn.alignment.Set(WMComponents.AlignLeft);
			sendYBtn.bounds.SetWidth(40);
			sendYBtn.caption.SetAOC("Send");
			sendYBtn.onClick.Add(HandleXYButtons);
			toolbar.AddContent(sendYBtn);

			(* receive YModem *)
			NEW(receiveYBtn);
			receiveYBtn.alignment.Set(WMComponents.AlignLeft);
			receiveYBtn.bounds.SetWidth(40);
			receiveYBtn.caption.SetAOC("Receive");
			receiveYBtn.onClick.Add(HandleXYButtons);
			toolbar.AddContent(receiveYBtn);

			(* Clear *)
			NEW(button); button.alignment.Set(WMComponents.AlignRight);
			button.caption.SetAOC("Clear");
			button.onClick.Add(HandleClearButton);
			toolbar.AddContent(button);

			(* Paste *)
			NEW(button); button.alignment.Set(WMComponents.AlignRight);
			button.caption.SetAOC("Paste");
			button.onClick.Add(HandlePasteButton);
			toolbar.AddContent(button);

			(* Copy *)
			NEW(button); button.alignment.Set(WMComponents.AlignRight);
			button.caption.SetAOC("Copy");
			button.onClick.Add(HandleCopyButton);
			toolbar.AddContent(button);

			(* Search *)
			NEW(button); button.alignment.Set(WMComponents.AlignRight);
			button.caption.SetAOC("Search");
			button.onClick.Add(HandleSearchButton);
			toolbar.AddContent(button);

			RETURN toolbar;
		END CreateUpperToolBar;

		PROCEDURE CreateCommandMenu() : WMStandardComponents.Button;
		VAR command : Command; button : WMStandardComponents.Button;
		BEGIN
			command := LoadCommandMenu();
			IF command # NIL THEN
				NEW(commandPopup);
				WHILE command # NIL DO
					commandPopup.AddParButton(command.name, HandleCommandPopup, command);
					command := command.next;
				END;

				NEW(button);
				button.bounds.SetWidth(150); button.alignment.Set(WMComponents.AlignRight);
				button.takesFocus.Set(FALSE);
				button.caption.SetAOC("Commands");
				button.onClick.Add(HandleCommandMenuButton);
			END;
			RETURN button;
		END CreateCommandMenu;

		PROCEDURE CreateLowerToolBar() : WMStandardComponents.Panel;
		VAR toolbar : WMStandardComponents.Panel;
		BEGIN
			NEW(toolbar);
			toolbar.alignment.Set(WMComponents.AlignBottom); toolbar.bounds.SetHeight(20);
			toolbar.fillColor.Set(0E0E0E0FFH);

			NEW(sendCommandBtn);
			sendCommandBtn.alignment.Set(WMComponents.AlignLeft); sendCommandBtn.bounds.SetWidth(100);
			sendCommandBtn.takesFocus.Set(FALSE);
			sendCommandBtn.caption.SetAOC("Send Command:");
			sendCommandBtn.onClick.Add(HandleSendCommandButton);
			toolbar.AddContent(sendCommandBtn);

			commandMenuBtn := CreateCommandMenu();
			IF commandMenuBtn # NIL THEN
				toolbar.AddContent(commandMenuBtn);
			END;

			NEW(sendCommandEditor);
			sendCommandEditor.alignment.Set(WMComponents.AlignClient);
			sendCommandEditor.multiLine.Set(FALSE);
			sendCommandEditor.tv.textAlignV.Set(WMGraphics.AlignCenter);
			sendCommandEditor.fillColor.Set(WMGraphics.White);
			sendCommandEditor.tv.borders.Set(WMRectangles.MakeRect(4, 3, 2, 2));
			sendCommandEditor.tv.showBorder.Set(TRUE);
			sendCommandEditor.SetAsString("");
			sendCommandEditor.onEnter.Add(HandleSendCommandButton);
			toolbar.AddContent(sendCommandEditor);

			RETURN toolbar;
		END CreateLowerToolBar;

		PROCEDURE CreateStatusBar() : WMStandardComponents.Panel;
		VAR statusBar : WMStandardComponents.Panel;
		BEGIN
			NEW(statusBar);
			statusBar.alignment.Set(WMComponents.AlignBottom); statusBar.bounds.SetHeight(20);
			statusBar.fillColor.Set(0E0E0E0FFH);

			NEW(clearStatusBtn);
			clearStatusBtn.bounds.SetWidth(80); clearStatusBtn.alignment.Set(WMComponents.AlignRight);
			clearStatusBtn.caption.SetAOC("Clear Status");
			clearStatusBtn.onClick.Add(HandleClearStatusButton);
			statusBar.AddContent(clearStatusBtn);

			NEW(dsr);
			dsr.bounds.SetWidth(30); dsr.alignment.Set(WMComponents.AlignRight);
			dsr.bearing.Set(WMRectangles.MakeRect(1,1,1,1));
			dsr.caption.SetAOC("DSR"); dsr.fillColor.Set(WMGraphics.White); dsr.alignH.Set(WMGraphics.AlignCenter);
			statusBar.AddContent(dsr);

			NEW(status);
			status.alignment.Set(WMComponents.AlignClient);
			statusBar.AddContent(status);

			RETURN statusBar;
		END CreateStatusBar;

		PROCEDURE CreateContent;
		VAR scrollbarY : WMStandardComponents.Scrollbar;
		BEGIN
			AddContent(CreateUpperToolBar()); (* AlignTop *)
			IF settings.showStatusBar THEN
				AddContent(CreateStatusBar()); (* AlignBottom *)
			END;
			lowerToolBar := CreateLowerToolBar();
			AddContent(lowerToolBar); (* AlignBottom *)

			NEW(scrollbarY); scrollbarY.alignment.Set(WMComponents.AlignRight); scrollbarY.vertical.Set(TRUE);

			NEW(text);
			NEW(textView); textView.alignment.Set(WMComponents.AlignClient);
			textView.SetText(text);
			textView.showBorder.Set(TRUE);
			textView.SetScrollbars(NIL, scrollbarY);
			textView.SetExtKeyEventHandler(ExtKeyPressed);
			textView.SetExtFocusHandler(ExtFocus);
			IF settings.indicateKeyboardFocus THEN textView.fillColor.Set(0CCCCCCCCH); END;

			NEW(searchPanel);
			searchPanel.alignment.Set(WMComponents.AlignBottom);
			searchPanel.bounds.SetHeight(40);
			searchPanel.SetText(text);
			searchPanel.SetTextView(textView);
			searchPanel.visible.Set(FALSE);

			AddContent(searchPanel);
			AddContent(scrollbarY);
			AddContent(textView);
		END CreateContent;

		PROCEDURE Wait(ms : LONGINT);
		BEGIN
			timer.Sleep(ms);
		END Wait;

		PROCEDURE &Init*;
		BEGIN
			Init^;
			SetGenerator("WMV24Component.NewTerminalComponent");
			NEW(timer); NEW(lock);
			NEW(settings); settings.Load;
			CreateContent;
			NEW(w, text); w.SetFontName("Courier");
			IF settings.showStatusBar THEN NEW(statusUpdater, SELF); END;
			SetNameAsString(StrTerminalComponent);
		END Init;

		(* Get global coordinates of the terminal panel *)
		PROCEDURE GetPanelCoordinates(VAR gx, gy : LONGINT);
		VAR rect : WMRectangles.Rectangle;
		BEGIN
			rect := bounds.Get();
			ToWMCoordinates(rect.l, rect.t, gx, gy);
		END GetPanelCoordinates;

		PROCEDURE CopyFromClipboard;
		VAR string : POINTER TO ARRAY OF CHAR;
		BEGIN
			Texts.clipboard.AcquireRead;
			IF Texts.clipboard.GetLength() > 0 THEN
				NEW(string, Texts.clipboard.GetLength()+1);
				TextUtilities.TextToStr(Texts.clipboard, string^);
			END;
			Texts.clipboard.ReleaseRead;
			lock.Acquire(Terminal); out.String(string^); out.Update; lock.Release;
		END CopyFromClipboard;

		PROCEDURE GetXYCommand(send : BOOLEAN; mode : LONGINT) : Strings.String;
		VAR command : Strings.String;
		BEGIN
			IF (mode = XYModem.XModem) THEN
				IF send THEN command := settings.xReceiveCommand;
				ELSE command := settings.xSendCommand;
				END;
			ELSE
				IF send THEN command := settings.yReceiveCommand;
				ELSE command := settings.ySendCommand;
				END;
			END;
			RETURN command;
		END GetXYCommand;

		PROCEDURE SendXYCommand(send : BOOLEAN; CONST command, filename : ARRAY OF CHAR);
		BEGIN
			lock.Acquire(Terminal);
			out.String(command);
			IF ~send THEN out.Char(" "); out.String(filename); END;
			out.Char(CR);
			IF settings.linefeed THEN out.Char(LF); END;
			out.Update;
			lock.Release;
			Wait(500);
		END SendXYCommand;

		PROCEDURE SendXYModem(CONST filename : ARRAY OF CHAR; mode : LONGINT);
		VAR
			f : Files.File;
			progressWindow : ProgressWindow;
			progressInfo : ProgressInfo;
			xysender : XYModem.Sender;
			msg : ARRAY 32 OF CHAR;
			x, y, res : LONGINT;
		BEGIN
			f := Files.Old(filename);
			IF f # NIL THEN
				IF open THEN
					NEW(timer);
					open := FALSE;
					port.Close; (* Force ReceiveCharacters to release the lock *)
					lock.Acquire(DataTransfer);
					(* Now we have the port for us alone *)
					port.Open(bps, databits, parity, stop, res);
					IF res = Serials.Ok THEN
						in.Reset; out.Reset;
						NEW(xysender, out, in, f, mode);
						NEW(progressInfo, filename, f.Length()); progressInfo.bounds.SetExtents(300, 60);
						GetPanelCoordinates(x, y);
						NEW(progressWindow, progressInfo, x + 150, y + 50);
						WHILE ~xysender.IsDone() DO
							progressInfo.SetProgress(xysender.bytesProcessed);
							Wait(500);
						END;
						progressInfo.SetProgress(xysender.bytesProcessed);
						xysender.Await(msg);
					ELSE
						Show("FATAL ERROR, could not re-open the port"); KernelLog.Ln;
					END;
					lock.Release;
					IF msg # "" THEN
						WMDialogs.Error("Transmission failed", msg)
					END;
					Wait(1000);
					progressWindow.Close;
					BEGIN {EXCLUSIVE} open := TRUE; END;
				END;
			ELSE
				WMDialogs.Error("File not found", filename);
			END;
		END SendXYModem;

		PROCEDURE ReceiveXYModem(filename : ARRAY OF CHAR; mode : LONGINT);
		VAR
			f : Files.File;
			progressWindow : ProgressWindow;
			label : WMStandardComponents.Label;
			caption : ARRAY 128 OF CHAR;
			xyreceiver : XYModem.Receiver;
			msg : ARRAY 32 OF CHAR;
			x, y, res : LONGINT;
			awaitF : BOOLEAN;
		BEGIN
			IF filename # "" THEN
				f := Files.New(filename); awaitF := FALSE;
				IF f = NIL THEN
					WMDialogs.Error("Couldn't create file ", filename);
					RETURN;
				END;
			ELSE
				f := NIL; awaitF := TRUE
			END;

			IF open THEN
				NEW(timer);
				open := FALSE;
				port.Close; (* Force ReceiveCharacters to release the lock *)
				lock.Acquire(DataTransfer);
				(* Now we have the port for us alone *)
				port.Open(bps, databits, parity, stop, res);
				IF res = Serials.Ok THEN
					in.Reset; out.Reset;
					NEW(xyreceiver, out, in, f, mode);
					NEW(label); label.alignment.Set(WMComponents.AlignLeft);
					label.bounds.SetExtents(300, 100); label.fillColor.Set(WMGraphics.White);
					label.alignH.Set(WMGraphics.AlignCenter); label.alignV.Set(WMGraphics.AlignCenter);
					label.caption.SetAOC("Receiving data...");
					GetPanelCoordinates(x, y);
					NEW(progressWindow, label, x + 150, y + 50);
					WHILE ~xyreceiver.IsDone() DO
						Strings.IntToStr(xyreceiver.bytesProcessed, caption);
						Strings.Append(caption, " bytes received");
						label.caption.SetAOC(caption);
						Wait(500);
					END;
					Strings.IntToStr(xyreceiver.bytesProcessed, caption);
					Strings.Append(caption, " bytes received");
					label.caption.SetAOC(caption);
					IF ~awaitF THEN
						xyreceiver.Await(msg)
					ELSE
						xyreceiver.AwaitF(f, msg)
					END;
				ELSE
					Show("FATAL ERROR, could not re-open the port"); KernelLog.Ln;
				END;
				lock.Release;

				Wait(500); (* Give the port open time so we see the output below *)

				IF msg # "" THEN
					WMDialogs.Error("Reception failed", msg)
				ELSIF f = NIL THEN
					WMDialogs.Error("Error: File is NIL", msg);
				ELSE
					Files.Register(f);
					IF awaitF THEN
						f.GetName(filename);
					END;
					caption := "File "; Strings.Append(caption, filename); Strings.Append(caption, " received (");
					Strings.IntToStr(xyreceiver.bytesProcessed, msg); Strings.Append(caption, msg); Strings.Append(caption, "Bytes)");
					label.caption.SetAOC(caption);
				END;

				Wait(500);
				progressWindow.Close;
				BEGIN {EXCLUSIVE} open := TRUE; END;
			END;
		END ReceiveXYModem;

		PROCEDURE ResetStatus;
		BEGIN
			overrunErrors := 0; parityErrors := 0; framingErrors := 0; transportErrors := 0; breakInterrupts := 0;
		END ResetStatus;

		PROCEDURE ToggleOpen(sender, data : ANY);
		VAR msg, s, t : ARRAY 64 OF CHAR; parityChar : CHAR;
			r : Streams.StringReader;
			res : LONGINT;
		BEGIN
			ResetStatus;
			IF open THEN
				open := FALSE;
				port.Close;
				opencloseBtn.caption.SetAOC("Open");
			ELSE
				settingsEdit.GetAsString(s);
				NEW(r, 64); r.Set(s); r.SkipWhitespace;
				r.Int(portNr, FALSE);  r.SkipWhitespace;
				r.Int(bps, FALSE); r.SkipWhitespace;
				r.Int(databits, FALSE); r.SkipWhitespace;
				r.Int(stop, FALSE); r.SkipWhitespace;
				r.Char(parityChar);

				port := Serials.GetPort(portNr);
				IF port # NIL THEN
					CASE CAP(parityChar) OF
						| "N" : parity := Serials.ParNo;
						| "O" : parity := Serials.ParOdd;
						| "E" : parity := Serials.ParEven;
						| "M" : parity := Serials.ParMark;
						| "S" : parity := Serials.ParSpace;
					ELSE parity := Serials.ParNo
					END;
					port.Open(bps, databits, parity, stop, res);
					IF res = Serials.Ok THEN
						opencloseBtn.caption.SetAOC("Close");
						NEW(in, port.Receive, 64); NEW(out, port.Send, 64);
						BEGIN {EXCLUSIVE}
							open := TRUE
						END
					ELSE
						ReportError("Configuration Error", res);
					END
				ELSE
					msg := "Port number not available: "; Strings.IntToStr(portNr, t); Strings.Append(msg, t);
					WMDialogs.Error("Port not found", msg)
				END;
			END;
		END ToggleOpen;

		PROCEDURE Finalize*;
		BEGIN
			Finalize^;
			IF settings.showStatusBar THEN statusUpdater.Terminate; END;
			BEGIN {EXCLUSIVE}
				running := FALSE;
				IF port # NIL THEN port.Close; open := FALSE; END;
			END;
		END Finalize;

		PROCEDURE DeleteNCharacters(nbrOfCharacters : LONGINT);
		VAR pos : LONGINT;
		BEGIN
			text.AcquireWrite;
			pos := textView.cursor.GetPosition();
			text.Delete(pos - nbrOfCharacters, nbrOfCharacters);
			text.ReleaseWrite;
		END DeleteNCharacters;

		PROCEDURE ReportError(CONST title : ARRAY OF CHAR; res : LONGINT);
		VAR msg : ARRAY 128 OF CHAR;
		BEGIN
		CASE res OF
			| Serials.PortInUse : msg := "Port already in use"
			| Serials.WrongBPS : msg := "Unsupported  BPS"
			| Serials.WrongData : msg := "Unsupported data or stop bits"
			| Serials.WrongParity : msg := "Unsupported parity";
			| Serials.OverrunError : msg := "Overrun Error";
			| Serials.ParityError : msg := "Parity Error";
			| Serials.FramingError : msg := "Framing Error (Wrong bitrate?)";
			| Serials.BreakInterrupt : msg := "Break Interrupt received";
			| Serials.Closed : msg := "Port is closed";
			| Serials.TransportError : msg := "Transport Layer Error";
		ELSE msg := "Unspecified error"
		END;
		WMDialogs.Error(title, msg)
		END ReportError;

		PROCEDURE EvaluateError(res : LONGINT);
		BEGIN
			CASE res OF
				|Serials.OverrunError: INC(overrunErrors);
				|Serials.ParityError: INC(parityErrors);
				|Serials.FramingError: INC(framingErrors);
				|Serials.BreakInterrupt: INC(breakInterrupts);
				|Serials.TransportError: INC(transportErrors);
			ELSE
				INC(otherErrors);
			END;
		END EvaluateError;

		PROCEDURE ReceiveCharacters;
		VAR ch : CHAR; buffer : ARRAY ReceiveBufferSize OF CHAR; backspaces, i, len, res : LONGINT;
		BEGIN
			len := 0;
			res := Streams.Ok;
			WHILE running & (res = Streams.Ok) & (len = 0) DO
				lock.Acquire(Terminal);
				len := port.Available();
				IF len # 0 THEN
					port.Receive(buffer, 0, ReceiveBufferSize, MIN(len,ReceiveBufferSize), len, res);
				END;
				lock.Release;
				IF running & (res = Streams.Ok) & (len = 0) THEN 
					Objects.Yield;
				END;
			END;

			IF res = Serials.Ok THEN
				FOR i := 0 TO len-1 DO

					ch := buffer[i];

					IF Trace * TraceCharactersReceived # {} THEN Show("Received character: "); KernelLog.Int(ORD(ch), 0); KernelLog.Ln; END;
					IF settings.echo THEN out.Char(ch); out.Update; END;

					IF ~settings.utf8Support & (ORD(ch) > 127) THEN
						ch := ".";
					END;

					IF (ch = DEL) OR (ch = Backspace) THEN
						INC(backspaces);
					ELSE
						IF (backspaces > 0) THEN
							w.Update;
							DeleteNCharacters(backspaces);
							backspaces := 0;
						END;
						w.Char(ch);
					END;
				END;
				w.Update;
			ELSE
				EvaluateError(res);
			END;
			DeleteNCharacters(backspaces);
		END ReceiveCharacters;

	BEGIN {ACTIVE}
		running := TRUE;
		WHILE running DO
			BEGIN {EXCLUSIVE} AWAIT(open OR ~running); END;
			IF running THEN ReceiveCharacters; END;
		END;
	END TerminalComponent;

TYPE

	StatusUpdater = OBJECT
	VAR
		terminal : TerminalComponent;

		writer : Streams.StringWriter;

		alive, dead : BOOLEAN;
		timer : Kernel.Timer;

		PROCEDURE UpdateStatusLabel;
		VAR string : ARRAY 1024 OF CHAR; port : Serials.Port; mc : SET;
		BEGIN
			writer.Reset;
			writer.String("  Errors:   ");
			writer.String("Overruns: "); writer.Int(terminal.overrunErrors, 5); writer.String("   ");
			writer.String("Parity: "); writer.Int(terminal.parityErrors, 5); writer.String("   ");
			writer.String("Framing: "); writer.Int(terminal.framingErrors, 5); writer.String("   ");
			writer.String("Transport: "); writer.Int(terminal.transportErrors, 5);
			port := terminal.port;
			IF (port # NIL) & terminal.open THEN
				writer.String("      ");
				writer.String("Sent: "); writer.Int(port.charactersSent, 8); writer.String("   ");
				writer.String("Received: "); writer.Int(port.charactersReceived, 8);
				port.GetMC(mc);
				IF mc * {Serials.DSR} # {} THEN
					terminal.dsr.fillColor.Set(WMGraphics.Green);
				ELSE
					terminal.dsr.fillColor.Set(WMGraphics.Red);
				END;
			ELSE
				terminal.dsr.fillColor.Set(WMGraphics.White);
			END;
			writer.Get(string);
			terminal.status.caption.SetAOC(string);
			IF (terminal.overrunErrors > 0) OR (terminal.parityErrors > 0) OR (terminal.framingErrors > 0) OR
				(terminal.transportErrors > 0) THEN
				terminal.status.fillColor.Set(WMGraphics.Red);
			ELSE
				terminal.status.fillColor.Set(0E0E0E0FFH);
			END;
		END UpdateStatusLabel;

		PROCEDURE Terminate;
		BEGIN {EXCLUSIVE}
			alive := FALSE; timer.Wakeup;
			AWAIT(dead);
		END Terminate;

		PROCEDURE &Init*(terminal : TerminalComponent);
		BEGIN
			ASSERT(terminal # NIL);
			SELF.terminal := terminal;
			alive := TRUE; dead := FALSE;
			NEW(timer);
			NEW(writer, 1024);
		END Init;

	BEGIN {ACTIVE}
		WHILE alive DO
			UpdateStatusLabel;
			timer.Sleep(UpdateInterval);
		END;
		BEGIN {EXCLUSIVE} dead := TRUE; END;
	END StatusUpdater;

TYPE

	KillerMsg = OBJECT
	END KillerMsg;

	ProgressWindow = OBJECT(WMComponents.FormWindow);

		PROCEDURE Close*;
		BEGIN
			Close^;
			DecCount
		END Close;

		PROCEDURE Handle*(VAR x : WMMessages.Message);
		BEGIN
			IF (x.msgType = WMMessages.MsgExt) & (x.ext # NIL) & (x.ext IS KillerMsg) THEN Close
			ELSE Handle^(x)
			END
		END Handle;

		PROCEDURE &New*(vc : WMComponents.VisualComponent; x, y : LONGINT);
		BEGIN
			IncCount;

			Init(vc.bounds.GetWidth(), vc.bounds.GetHeight(), FALSE);
			SetContent(vc);
			SetTitle(Strings.NewString("Progress"));

			WMWindowManager.DefaultAddWindow(SELF);
		END New;

	END ProgressWindow;

TYPE

	Window* = OBJECT (WMComponents.FormWindow)
	VAR
		terminal : TerminalComponent;

		PROCEDURE GetStartupSize(VAR width, height : LONGINT);
		VAR strings : Strings.StringArray; value : ARRAY 64 OF CHAR; res : LONGINT;
		BEGIN
			width := DefaultWidth; height := DefaultHeight;
			Configuration.Get("Applications.WMV24Component.WindowStartupSize", value, res);
			IF (res = Configuration.Ok) THEN
				Strings.UpperCase(value);
				Strings.TrimWS(value);
				strings := Strings.Split(value, "X");
				IF LEN(strings) = 2 THEN
					Strings.StrToInt(strings[0]^, width);
					Strings.StrToInt(strings[1]^, height);
				END;
			END;
		END GetStartupSize;

		PROCEDURE CreateForm(): WMComponents.VisualComponent;
		VAR panel : WMStandardComponents.Panel; width, height : LONGINT;
		BEGIN
			GetStartupSize(width, height);
			NEW(panel); panel.bounds.SetExtents(width, height); panel.fillColor.Set(0FFFFFFFFH); panel.takesFocus.Set(TRUE);
			NEW(terminal); terminal.alignment.Set(WMComponents.AlignClient);
			panel.AddContent(terminal);
			RETURN panel
		END CreateForm;

		PROCEDURE &New*(c : WMRestorable.Context; context: Commands.Context);
		VAR
			vc : WMComponents.VisualComponent;
			configuration : WMRestorable.XmlElement; string : ARRAY 64 OF CHAR;
			s: POINTER TO ARRAY OF CHAR;
			len: LONGINT;
		BEGIN
			IncCount;

			vc := CreateForm();
			Init(vc.bounds.GetWidth(), vc.bounds.GetHeight(), FALSE);
			SetContent(vc);
			SetTitle(Strings.NewString("BlueTerminal"));
			SetIcon(WMGraphics.LoadImage("WMIcons.tar://WMV24Component.png", TRUE));

			IF c # NIL THEN
				configuration := WMRestorable.GetElement(c, "Configuration");
				IF configuration # NIL THEN
					WMRestorable.LoadString(configuration, "PortSettings", string);
					terminal.settingsEdit.SetAsString(string);
				END;
				WMRestorable.AddByContext(SELF, c);
				Resized(GetWidth(), GetHeight());
			ELSE
				WMWindowManager.DefaultAddWindow(SELF);
				IF context # NIL THEN
					NEW(s, (*context.arg.Pos()+*)context.arg.Available());
					context.arg.SkipWhitespace();
					context.arg.Bytes(s^, 0 (*context.arg.Pos()*), context.arg.Available(), len);
					(* Only automatically open the Com Port if a paramater was passed *)
					IF (len > 0) & (s[0] # 0X) THEN
						terminal.settingsEdit.SetAsString(s^);
						terminal.ToggleOpen(NIL, NIL);
					END;
				END;
			END;
		END New;

		PROCEDURE Close*;
		BEGIN
			T.String("closing window"); T.Ln;
			Close^;
			DecCount
		END Close;

		PROCEDURE Handle*(VAR x : WMMessages.Message);
		VAR configuration : WMRestorable.XmlElement; string : ARRAY 64 OF CHAR;
		BEGIN
			IF (x.msgType = WMMessages.MsgExt) & (x.ext # NIL) THEN
				IF (x.ext IS KillerMsg) THEN
					Close;
				ELSIF (x.ext IS WMRestorable.Storage) THEN
					NEW(configuration); configuration.SetName("Configuration");
					terminal.settingsEdit.GetAsString(string);
					WMRestorable.StoreString(configuration, "PortSettings", string);
					x.ext(WMRestorable.Storage).Add("BlueTerminal", "WMV24Component.Restore", SELF, configuration);
				ELSE
					Handle^(x);
				END;
			ELSE Handle^(x)
			END
		END Handle;

	END Window;

VAR
	nofWindows : LONGINT;
	timeout: BOOLEAN;

	StrProgressInfo, StrCustomTextView, StrTerminalComponent : Strings.String;

PROCEDURE ControlKeyDown(flags : SET) : BOOLEAN;
BEGIN
	RETURN (flags * Inputs.Ctrl # {}) & (flags - Inputs.Ctrl = {});
END ControlKeyDown;

PROCEDURE LoadCommandMenu() : Command;
VAR
	commandList : Command;
	enum: XMLObjects.Enumerator; p: ANY; e: XML.Element;

	PROCEDURE AddCommand(name,  value : XML.String);
	VAR c, newCmd : Command;
	BEGIN
		IF (name # NIL) & (value # NIL) THEN
			NEW(newCmd);
			COPY(name^, newCmd.name);
			COPY(value^, newCmd.commandString);
			(* append to command list *)
			c := commandList;
			WHILE (c.next # NIL) DO c := c.next; END;
			c.next := newCmd;
		ELSE
			Show("Command menu definition has errors."); KernelLog.Ln;
		END;
	END AddCommand;

BEGIN
	NEW(commandList); commandList.next := NIL;

	e := Configuration.GetSection("Applications.WMV24Component.CommandMenu");
	IF (e # NIL) THEN
		enum := e.GetContents();
		WHILE enum.HasMoreElements() DO
			p := enum.GetNext();
			IF p IS XML.Element THEN
				e := p (XML.Element);
				AddCommand(e.GetAttributeValue("name"), e.GetAttributeValue("value"));
			END;
		END;
	END;

	RETURN commandList.next;
END LoadCommandMenu;

PROCEDURE InitStrings;
BEGIN
	StrProgressInfo := Strings.NewString("ProgressInfo");
	StrCustomTextView := Strings.NewString("CustomTextView");
	StrTerminalComponent := Strings.NewString("TerminalComponent");
END InitStrings;

PROCEDURE Show(CONST string : ARRAY OF CHAR);
BEGIN
	KernelLog.String(ModuleName); KernelLog.String(": "); KernelLog.String(string);
END Show;

PROCEDURE Restore*(context : WMRestorable.Context);
VAR window : Window;
BEGIN
	NEW(window, context, NIL);
END Restore;

PROCEDURE Open*(context: Commands.Context);
VAR window : Window;
BEGIN
	NEW(window, NIL, context);
END Open;

PROCEDURE NewTerminalComponent*(): XML.Element;
VAR component: TerminalComponent;
BEGIN NEW(component); RETURN component;
END NewTerminalComponent;


PROCEDURE IncCount;
BEGIN {EXCLUSIVE}
	INC(nofWindows)
END IncCount;

PROCEDURE DecCount;
BEGIN {EXCLUSIVE}
	DEC(nofWindows)
END DecCount;

PROCEDURE Timeout;
BEGIN{EXCLUSIVE}
	timeout := TRUE
END Timeout;

PROCEDURE Cleanup;
VAR die : KillerMsg;
	 msg : WMMessages.Message;
	 m : WMWindowManager.WindowManager;
	 timer: OBJECT VAR timer: Kernel.Timer; BEGIN{ACTIVE} NEW(timer); timer.Sleep(100); Timeout END;
BEGIN {EXCLUSIVE}
	NEW(die);
	msg.ext := die;
	msg.msgType := WMMessages.MsgExt;
	m := WMWindowManager.GetDefaultManager();
	WHILE nofWindows >0 DO
		m.Broadcast(msg);
		timeout := FALSE; NEW(timer);
		AWAIT (nofWindows = 0) OR timeout;
	END;
END Cleanup;

PROCEDURE InitV24;
VAR res: LONGINT; msg: ARRAY 32 OF CHAR;
BEGIN
	Commands.Call("V24.Install",{},res,msg); (* auto-initialize V24 in Windows *)
END InitV24;


BEGIN
	Modules.InstallTermHandler(Cleanup);
	InitStrings;
END WMV24Component.


V24.Install ~
Serials.Show ~

SystemTools.Free WMV24Component WMProgressComponents XYModem ~
WMV24Component.Open ~

Serials.CloseAllPorts ~