//zmg, 03.01.01
//this file needs a better description!


//Modified by Bargavi 
//to be compatible with Flash MX

// Modified by Dean Wood 05.10.01
//  Changed hard-coded 7s to cursorXOffset
//  Changed hard-coded 15s to cursorYOffset
//  Added call to manual_scrolling_setSlider() in output_writeOut()
//  Added call to manual_scrolling_setSlider() in output_writeOneMore()

// output_setCursor()
// IN : None
// DO : Sets the cursor placement of the cursor object in the HyperTerminal movieclip
// OUT: None
function output_setCursor() {


	with(eval("_root.r" + _root.VISIBLE_ROUTER)) {
		_root.HyperTerminal.cursor._x = (cx + (cursorX * cursorXOffset));
	}
}


// output_initCursor()
// IN : None
// DO : Sets the cursor to invisible and moves it to the correct line
// OUT: None
function output_initCursor() {

	with(eval("_root.r" + _root.VISIBLE_ROUTER)) {
		// set the y position of cursor -> should always be this value
		_root.HyperTerminal.cursor._y = cy + cursorYOffset * cursorY;

		// set the starting visibility of cursor to false
		_root.HyperTerminal.cursor._visible = false;
	}
}


// ***** output_processMore(int) *****
// IN :	An integer representing the key pressed
// DO :	Interpret the key and decide how to continue with the --More--
// OUT: None
function output_processMore(keycode) {

	with(eval("_root.r" + _root.VISIBLE_ROUTER)) {
		// resets the scroll to print more lines
		scrollStartLine = lastDLine - 23;
	}


	if (commandline_matchKey(keycode," ")) {

		// SPACE is pressed
		// write one more page
		output_writeMore();

	} else if (keycode == 13) {

		// ENTER is pressed
		// write one more line
		output_writeOneMore();

	} else {

		// all other keys
		// exit the more state
		output_exitMore();
	}
}





// ***** output_writeMore () *****
// IN : None
// DO :	Write one more page when SPACE is pressed
// OUT: None
function output_writeMore() {


	// pointer to active router object
	var r = eval("_root.r" + _root.VISIBLE_ROUTER);

	// remove the last display line, which is " --More-- "
	r.line.splice(r.lastDLine,1);

	// let the counter know that a line has been removed
	r.lastLine--;


	if ((r.lastDLine+23) < r.lastLine) {

		// if there is one more page after this page
		output_write();

	} else {

		//else change the process back to
		//commandline_processCommandLine and print out
		//the command prompt
		commandline_changeProcess("commandline_processCommandLine");
		commandline_commandLine();
	}
}




// ***** output_exitMore () *****
// IN : None
// DO :	Exits the more state and changes back to the command line
// OUT: None
function output_exitMore() {


	// change process back to commandline_processCommandLine
	commandline_changeProcess("commandline_processCommandLine");

	with(eval("_root.r" + _root.VISIBLE_ROUTER)) {

		// turn the more flag off
		MORE = false;

		// remove the last display line, which is " --More-- "
		line.splice(lastDLine,1);

		// move the display line back to make up for the removal of " --More-- "
		lastDLine--;

		// set the current line to the last display line + 1
		line.length = lastDLine+1;
		lastLine = lastDLine+1;
	}

	// put a line of space between the printed info and the command line
	output_write("\n");

	// print out the command line
	commandline_commandLine();
}





// ***** output_writeOneMore () *****
// IN : None
// DO :	Set up the correct printing operations
// OUT: Write out one line of text and then the " --More-- " cursor
function output_writeOneMore() {


	// pointer to active router object
	var r = eval("_root.r" + _root.VISIBLE_ROUTER);

	// remove the last display line, which is " --More-- "
	r.line.splice(r.lastDLine,1);

	// let the counter know that a line has been removed
	r.lastLine--;

	// turn the 'one at a time printing method' flag on
	r.oneMoreLine = true;

	if ((r.lastDLine+1) < r.lastLine) {

		// if there is another line to print, print it
		output_write();

	} else {

		//else change the process back to
		//commandline_processCommandLine and print out
		//the command prompt
		commandline_changeProcess("commandline_processCommandLine");
		commandline_commandLine();
	}

	manual_scrolling_setSlider();
}





// ***** output_write(strings) *****
// IN :	Any number of strings; provided that every argument can only contain
//      ONE "\n" character that must be at the end of the argument.
// DO :	Store the arguments to <line>
// OUT: None
function output_write() {

	with(eval("_root.r" + _root.VISIBLE_ROUTER)) {


		// if the screen is not already writing
		if (WRITING == false) {

			// go back to the last screen if user has scrolled to another
			indexLine = lastDLine - 23;

			// update the new start line for scrolling
			scrollStartLine = indexLine;
		}



		// store each line of text to the line buffer
		var i=0;
		var o_f = output_feed;
		var len = arguments.length
		for (i=0; i<len; i++) {
			o_f(arguments[i]);
		}


		// if no more than one page of text
		if (MORE == false) {

			// set the last display line to the last line in the buffer
			lastDLine = lastLine;

			// linesToMore is the number of lines to trigger the more function
			var linesToMore = 46;
			if (oneMoreLine == true) {
				linesToMore = 24;
			}

			// if the number of lines is enough to trigger the More function
			if ((lastLine-scrollStartLine) > linesToMore) {

				// set the last display line to the starting line of this page plus linesToMore
				lastDLine = scrollStartLine + linesToMore;

				// add the " --More-- " line to the last display line
				line.splice(lastDLine,0," --More-- \n");

				// let the counter know you've added a line
				lastLine++;

				// turn the More function on
				MORE = true;

				// change process to intepret keys for the more function
				commandline_changeProcess("output_processMore");
			}
		}
		// if the screen is not already writing..
		if (WRITING == false) {

			// turn writing on, then call the writeOut function
			WRITING = true;
			output_writeOut();
		}
	}
}



// ***** output_writeOut() *****
// IN : None
// DO : Write one line at a time from the line buffer to the screen
//      then scroll down. Plays <delay> movie, and the movie calls
//	this function to print the next line
// OUT: Writes the line buffer to the HyperTerminal screen
function output_writeOut() {
//var startTime = getTimer();
//trace("startTime = "+ startTime);


	with(eval("_root.r" + _root.VISIBLE_ROUTER)) {


		// set stop line to different situations
		if (MORE == true) {


			if (oneMoreLine == true) {

				// if we're scrolling one at a time only go forward 2
				stopLine = scrollStartLine + 2;

			} else {

				// else we're scrolling a page at a time
				stopLine = scrollStartLine + 24;
			}


		} else {

			// else leave some space from the bottom when we're done
			stopLine = lastDLine - 22;
		}

		// if this is before the last line to be printed
		if (indexLine < stopLine) {
			//Modified by Bargavi
			// first, clear the screen
			with(eval("_root.HyperTerminal.s" + _root.VISIBLE_ROUTER)) {output.text = String("");} 
			 // clear screen  Bargavi

			// print out 24 lines starting from <indexLine>
			var i=0;
			var target_time =0;
			var i_L = indexLine;
			for (i=i_L; i<(i_L+24); i++) {

				//looking for PAUSE flag
				if (line[i] == "PAUSE\n") {

					// replace PAUSE flag with empty line to maintain line cohesion
					line.splice(i,1,"\n");

					target_time = (getTimer()/1000) + 5; // the time at which to continue

					// waiting for the right time
					for(;target_time>(getTimer()/1000);){
						// trying to update clock during wait
						timer_timeCompute();
					}
				}


				//Bargavi			
                             with(eval("_root.HyperTerminal.s" + _root.active_router ))
				 {
				   output.text =output.text + line[i];
				  } //Bargavi             
			  }


	  		// if this is the last line, then display the cursor
			if (indexLine == (stopLine-1)) {

				if (MORE == true) {
					// if we are printing the More cursor, offset it
					cursorX = 10;
				} else {
					//else the cursor is at the normal position
					cursorX = line[stopLine+22].length;
				}

				_root.HyperTerminal.cursor._x = cx + cursorXOffset * cursorX;

				// show the cursor
				_root.HyperTerminal.cursor._visible = true;

			} else {

				// else we hide the cursor
				_root.HyperTerminal.cursor._visible = false;
			}

			// check for the possible positions of the index line and correct it
			if (indexLine == (stopLine-1)) {
				indexLine++;
			} else if ((indexLine+3) >= stopLine) {
				indexLine = stopLine-1;
			} else {
				indexLine+=3;
			}

			// call the delay movie, and the movie will call back this function
			// to print out the rest of the data
			tellTarget (delay) {
				gotoAndPlay(2);
			}

			
		} else {

			// else everything has been printed and we can stop this loop
			MORE = false;
			oneMoreLine = false;
			WRITING = false;

			manual_scrolling_setSlider();
		}
}
	
//var endTime = getTimer();
//trace("endTime = "+ endTime);
//trace("elapsed time = " + (endTime-startTime)/1000 + "\n");
}






// ***** output_erase(int) *****
// IN :	One integer that is the number of characters to be erased
// DO :	Erase that number of characters
// OUT: The modified line
function output_erase(leng) {

	with(eval("_root.r" + _root.VISIBLE_ROUTER)) {

		// take out the specified # of characters from the last element in line
		line[lastLine] = line[lastLine].substring(0,line[lastLine].length-leng);

		// write out the buffer
		output_write();
	}
}




// ***** output_feed(string) *****
// IN : 1 line of text from output_write()
// DO : Store the text to <line>
// OUT: None
function output_feed(content) {

	with(eval("_root.r" + _root.VISIBLE_ROUTER)) {


		//if the line has over 80 characters, it will split
		//it up into multiple lines.
		
		while((line[lastLine].length+content.length) > 80) {

			// get the number of characters available on the last line
			feedLength = 80 - line[lastLine].length;

			// add as much as you can of the input text to the line
			line[lastLine] += content.substring(0,feedLength) + "\n";

			// subtract the amount given to line from the input
			content = content.substring(feedLength,content.length);

			// tell the line array that it had another line of text added
			lastLine++;
		}

		// add the remaining text to the line buffer
		line[lastLine] += content;

		// if the last character is "\n", then go to next line
		if (content.charAt(content.length-1) == "\n") {
			lastLine++;
		}


  		// if buffer is full, then take out first line in buffer
		while (lastDLine > bufferLength) {

			line.shift();
			lastLine--;
			indexLine--;
			scrollStartLine--;
			lastDLine--;
		}
	}
}




// NEW BY ZMG
// ***** output_write2(array[]) *****
// IN :	Any number of strings; provided that every argument can only contain
//      ONE "\n" character that must be at the end of the argument.
// DO :	Store the arguments to <line>
// OUT: None
function output_write2(hostname,address,arrayOfStrings) {

	with(eval("_root.r" + _root.VISIBLE_ROUTER)) {
                var o_f = output_feed;
		// if the screen is not already writing
		if (WRITING == false) {

			// go back to the last screen if user has scrolled to another
			indexLine = lastDLine - 23;

			// update the new start line for scrolling
			scrollStartLine = indexLine;
		}

		o_f("\n");
		if (hostname == "") {
			o_f("Tracing route to ["+address+"]\n");
		} else {
			output_feed("Tracing route to "+hostname+" ["+address+"]\n");
		}
		o_f("over a maximum of 30 hops:\n");
		o_f("\n");

		// store each line of text to the line buffer
		var i =0;
		var aos = arrayOfStrings.length
		for (i=0; i < aos; i++) {

			o_f(arrayOfStrings[i]);
		}

		o_f("\n");
		o_f("Trace complete.\n");
		o_f("\n");


		// if no more than one page of text
		if (MORE == false) {

			// set the last display line to the last line in the buffer
			lastDLine = lastLine;

			// linesToMore is the number of lines to trigger the more function
			var linesToMore = 46; //this is an initial value
			if (oneMoreLine == true) {
				linesToMore = 24;
			}

			// if the number of lines is enough to trigger the More function
			if ((lastLine-scrollStartLine) > linesToMore) {

				// set the last display line to the starting line of this page plus linesToMore
				lastDLine = scrollStartLine + linesToMore;

				// add the " --More-- " line to the last display line
				line.splice(lastDLine,0," --More-- \n");

				// let the counter know you've added a line
				lastLine++;

				// turn the More function on
				MORE = true;

				// change process to intepret keys for the more function
				commandline_changeProcess("output_processMore");

			}
		}

		// if the screen is not already writing..
		if (WRITING == false) {

			// turn writing on, then call the writeOut function
			WRITING = true;
			output_writeOut();
			//output_setCursor();
		}
	}
}
