/**
 * $Id: Dialogs.js,v 1.7 2013/05/07 06:54:12 gaudenz Exp $
 * Copyright (c) 2006-2012, JGraph Ltd
 */
/**
 * Constructs a new dialog.
 */
function Dialog(editorUi, elt, w, h, modal, closable, onClose)
{
	var dx = 0;
	
	if (mxClient.IS_IE && document.documentMode != 9)
	{
		dx = 60;
	}

	w += dx;
	h += dx;
	
	var left = Math.max(0, Math.round((document.body.scrollWidth - w) / 2));
	var top = Math.max(0, Math.round((Math.max(document.body.scrollHeight, document.documentElement.scrollHeight) - h) / 3));
	
	var div = editorUi.createDiv('geDialog');
	div.style.width = w + 'px';
	div.style.height = h + 'px';
	div.style.left = left + 'px';
	div.style.top = top + 'px';
	
	if (this.bg == null)
	{
		this.bg = editorUi.createDiv('background');
		this.bg.style.position = 'absolute';
		this.bg.style.background = 'white';
		this.bg.style.left = '0px';
		this.bg.style.top = '0px';
		this.bg.style.bottom = '0px';
		this.bg.style.right = '0px';
		mxUtils.setOpacity(this.bg, 80);
		
		if (mxClient.IS_QUIRKS)
		{
			new mxDivResizer(this.bg);
		}
	}

	if (modal)
	{
		document.body.appendChild(this.bg);
	}
	
	div.appendChild(elt);
	document.body.appendChild(div);
	
	if (closable)
	{
		var img = document.createElement('img');

		img.setAttribute('src', IMAGE_PATH + '/close.png');
		img.setAttribute('title', mxResources.get('close'));
		img.className = 'geDialogClose';
		img.style.top = (top + 14) + 'px';
		img.style.left = (left + w + 38 - dx) + 'px';
		
		mxEvent.addListener(img, 'click', mxUtils.bind(this, function()
		{
			editorUi.hideDialog();
		}));
		
		document.body.appendChild(img);
		this.dialogImg = img;
	}
	
	this.onDialogClose = onClose;
	this.container = div;
};

/**
 * Removes the dialog from the DOM.
 */
Dialog.prototype.close = function()
{
	if (this.onDialogClose != null)
	{
		this.onDialogClose();
		this.onDialogClose = null;
	}
	
	if (this.dialogImg != null)
	{
		this.dialogImg.parentNode.removeChild(this.dialogImg);
		this.dialogImg = null;
	}
	
	this.container.parentNode.removeChild(this.container);
	this.bg.parentNode.removeChild(this.bg);
};

/**
 * Constructs a new open dialog.
 */
function OpenDialog()
{
	var iframe = document.createElement('iframe');
	iframe.style.backgroundColor = 'transparent';
	iframe.allowTransparency = 'true';
	iframe.style.borderStyle = 'none';
	iframe.style.borderWidth = '0px';
	iframe.style.overflow = 'hidden';
	iframe.frameBorder = '0';
	iframe.setAttribute('width', '320px');
	iframe.setAttribute('height', '190px');
	iframe.setAttribute('src', OPEN_FORM);
	
	this.container = iframe;
};

/**
 * Constructs a new color dialog.
 */
function ColorDialog(editorUi, color, apply)
{
	this.editorUi = editorUi;
	
	var input = document.createElement('input');
	input.style.marginBottom = '10px';
	input.style.width = '216px';
	
	// Required for picker to render in IE
	if (mxClient.IS_IE)
	{
		input.style.marginTop = '10px';
		document.body.appendChild(input);
	}

	var picker = new jscolor.color(input);
	picker.pickerOnfocus = false;
	picker.showPicker();

	var div = document.createElement('div');
	jscolor.picker.box.style.position = 'relative';
	jscolor.picker.box.style.width = '230px';
	jscolor.picker.box.style.height = '100px';
	jscolor.picker.box.style.paddingBottom = '10px';
	div.appendChild(jscolor.picker.box);

	var center = document.createElement('center');
	
	function addPresets(presets, rowLength)
	{
		rowLength = (rowLength != null) ? rowLength : 12;
		var table = document.createElement('table');
		table.style.borderCollapse = 'collapse';
		table.setAttribute('cellspacing', '0');
		table.style.marginBottom = '20px';
		table.style.cellSpacing = '0px';
		var tbody = document.createElement('tbody');
		table.appendChild(tbody);

		var rows = presets.length / rowLength;
		
		for (var row = 0; row < rows; row++)
		{
			var tr = document.createElement('tr');
			
			for (var i = 0; i < rowLength; i++)
			{
				(function(clr)
				{
					var td = document.createElement('td');
					td.style.border = '1px solid black';
					td.style.padding = '0px';
					td.style.width = '16px';
					td.style.height = '16px';
					
					if (clr == 'none')
					{
						td.style.background = 'url(\'' + IMAGE_PATH + '/nocolor.png' + '\')';
					}
					else
					{
						td.style.backgroundColor = '#' + clr;
					}
					
					tr.appendChild(td);
					
					mxEvent.addListener(td, 'click', function()
					{
						if (clr == 'none')
						{
							picker.fromString('ffffff');
							input.value = 'none';
						}
						else
						{
							picker.fromString(clr);
						}
					});
				})(presets[row * rowLength + i]);
			}
			
			tbody.appendChild(tr);
		}
		
		center.appendChild(table);
		
		return table;
	};

	div.appendChild(input);
	mxUtils.br(div);
	
	// Adds presets
	var table = addPresets(['E6D0DE', 'CDA2BE', 'B5739D', 'E1D5E7', 'C3ABD0', 'A680B8', 'D4E1F5', 'A9C4EB', '7EA6E0', 'D5E8D4', '9AC7BF', '67AB9F', 'D5E8D4', 'B9E0A5', '97D077', 'FFF2CC', 'FFE599', 'FFD966', 'FFF4C3', 'FFCE9F', 'FFB570', 'F8CECC', 'F19C99', 'EA6B66'], 12);
	table.style.marginBottom = '8px';
	table = addPresets(['none', 'FFFFFF', 'E6E6E6', 'CCCCCC', 'B3B3B3', '999999', '808080', '666666', '4D4D4D', '333333', '1A1A1A', '000000', 'FFCCCC', 'FFE6CC', 'FFFFCC', 'E6FFCC', 'CCFFCC', 'CCFFE6', 'CCFFFF', 'CCE5FF', 'CCCCFF', 'E5CCFF', 'FFCCFF', 'FFCCE6', 'FF9999', 'FFCC99', 'FFFF99', 'CCFF99', '99FF99', '99FFCC', '99FFFF', '99CCFF', '9999FF', 'CC99FF', 'FF99FF', 'FF99CC', 'FF6666', 'FFB366', 'FFFF66', 'B3FF66', '66FF66', '66FFB3', '66FFFF', '66B2FF', '6666FF', 'B266FF', 'FF66FF', 'FF66B3', 'FF3333', 'FF9933', 'FFFF33', '99FF33', '33FF33', '33FF99', '33FFFF', '3399FF', '3333FF', '9933FF', 'FF33FF', 'FF3399', 'FF0000', 'FF8000', 'FFFF00', '80FF00', '00FF00', '00FF80', '00FFFF', '007FFF', '0000FF', '7F00FF', 'FF00FF', 'FF0080', 'CC0000', 'CC6600', 'CCCC00', '66CC00', '00CC00', '00CC66', '00CCCC', '0066CC', '0000CC', '6600CC', 'CC00CC', 'CC0066', '990000', '994C00', '999900', '4D9900', '009900', '00994D', '009999', '004C99', '000099', '4C0099', '990099', '99004D', '660000', '663300', '666600', '336600', '006600', '006633', '006666', '003366', '000066', '330066', '660066', '660033', '330000', '331A00', '333300', '1A3300', '003300', '00331A', '003333', '001933', '000033', '190033', '330033', '33001A']);
	table.style.marginBottom = '16px';

	div.appendChild(center);

	var buttons = document.createElement('div');
	buttons.style.textAlign = 'right';
	buttons.style.whiteSpace = 'nowrap';
	
	var applyFunction = (apply != null) ? apply : this.createApplyFunction();
	
	buttons.appendChild(mxUtils.button(mxResources.get('apply'), function()
	{
		var color = input.value;
		
		if (color != 'none')
		{
			color = '#' + color;
		}
		
		applyFunction(color);
		editorUi.hideDialog();
	}));
	buttons.appendChild(mxUtils.button(mxResources.get('cancel'), function()
	{
		editorUi.hideDialog();
	}));
	
	if (color != null)
	{
		if (color == 'none')
		{
			picker.fromString('ffffff');
			input.value = 'none';
		}
		else
		{
			picker.fromString(color);
		}
	}
	
	div.appendChild(buttons);
	this.picker = picker;
	this.colorInput = input;
	this.container = div;
};

/* Creates function to apply value */
ColorDialog.prototype.createApplyFunction = function()
{
	return mxUtils.bind(this, function(color)
	{
		this.editorUi.editor.graph.setCellStyles(this.currentColorKey, (color == 'none') ? 'none' : color);
	});
};

/**
 * Constructs a new about dialog.
 */
function AboutDialog(editorUi)
{
	var div = document.createElement('div');
	div.setAttribute('align', 'center');
	var h3 = document.createElement('h3');
	mxUtils.write(h3, mxResources.get('about') + ' GraphEditor');
	div.appendChild(h3);
	var img = document.createElement('img');
	img.style.border = '0px';
	img.setAttribute('width', '176');
	img.setAttribute('width', '151');
	img.setAttribute('src', IMAGE_PATH + '/logo.png');
	div.appendChild(img);
	mxUtils.br(div);
	mxUtils.write(div, 'Powered by mxGraph ' + mxClient.VERSION);
	mxUtils.br(div);
	var link = document.createElement('a');
	link.setAttribute('href', 'http://www.jgraph.com/');
	link.setAttribute('target', '_blank');
	mxUtils.write(link, 'www.jgraph.com');
	div.appendChild(link);
	mxUtils.br(div);
	mxUtils.br(div);
	div.appendChild(mxUtils.button(mxResources.get('close'), function()
	{
		editorUi.hideDialog();
	}));
	
	this.container = div;
};

/**
 * Constructs a new page setup dialog.
 */
function PageSetupDialog(editorUi)
{
	var graph = editorUi.editor.graph;
	var a4 = mxConstants.PAGE_FORMAT_A4_PORTRAIT;
	var pf = ((graph.pageFormat.width == a4.width && graph.pageFormat.height == a4.height) ||
			(graph.pageFormat.height == a4.width && graph.pageFormat.width == a4.height)) ?
			a4 : mxConstants.PAGE_FORMAT_LETTER_PORTRAIT;
	var row, td;

	var table = document.createElement('table');
	table.style.width = '100%';
	table.style.height = '100%';
	var tbody = document.createElement('tbody');
	
	row = document.createElement('tr');
	
	td = document.createElement('td');
	td.style.fontSize = '10pt';
	mxUtils.write(td, mxResources.get('paperSize') + ':');
	
	row.appendChild(td);
	
	var paperSizeSelect = document.createElement('select');

	var paperSizeA4Option = document.createElement('option');
	paperSizeA4Option.setAttribute('value', 'a4');
	mxUtils.write(paperSizeA4Option, 'A4');
	paperSizeSelect.appendChild(paperSizeA4Option);
	
	var paperSizeLetterOption = document.createElement('option');
	paperSizeLetterOption.setAttribute('value', 'letter');
	mxUtils.write(paperSizeLetterOption, 'Letter');
	paperSizeSelect.appendChild(paperSizeLetterOption);
	
	if (pf === mxConstants.PAGE_FORMAT_LETTER_PORTRAIT)
	{
		paperSizeLetterOption.setAttribute('selected', 'selected');
	}

	td = document.createElement('td');
	td.style.fontSize = '10pt';
	td.appendChild(paperSizeSelect);
	row.appendChild(td);
	
	tbody.appendChild(row);
	
	row = document.createElement('tr');
	
	td = document.createElement('td');
	row.appendChild(td);

	var landscapeCheckBox = document.createElement('input');
	landscapeCheckBox.setAttribute('type', 'checkbox');

	if (graph.pageFormat.width == pf.height)
	{
		landscapeCheckBox.setAttribute('checked', 'checked');
	}
	
	td = document.createElement('td');
	td.style.padding = '4 0 16 2px';
	td.style.fontSize = '10pt';
	td.appendChild(landscapeCheckBox);
	mxUtils.write(td, ' ' + mxResources.get('landscape'));
	row.appendChild(td);
	
	tbody.appendChild(row);
	
	row = document.createElement('tr');
	
	td = document.createElement('td');
	td.style.fontSize = '10pt';
	td.style.width = '130px';
	mxUtils.write(td, mxResources.get('pageScale') + ':');
	
	row.appendChild(td);
	
	var pageScaleInput = document.createElement('input');
	pageScaleInput.setAttribute('value', (editorUi.editor.graph.pageScale * 100) + '%');
	pageScaleInput.style.width = '60px';

	td = document.createElement('td');
	td.appendChild(pageScaleInput);
	row.appendChild(td);
	
	tbody.appendChild(row);
	
	row = document.createElement('tr');
	td = document.createElement('td');
	td.colSpan = 2;
	td.style.paddingTop = '40px';
	td.setAttribute('align', 'right');

	td.appendChild(mxUtils.button(mxResources.get('ok'), function()
	{
		editorUi.hideDialog();
		
		var ls = landscapeCheckBox.checked;
		graph.pageFormat = (paperSizeSelect.value == 'letter') ?
			((ls) ? mxConstants.PAGE_FORMAT_LETTER_LANDSCAPE : mxConstants.PAGE_FORMAT_LETTER_PORTRAIT) :
			((ls) ? mxConstants.PAGE_FORMAT_A4_LANDSCAPE : mxConstants.PAGE_FORMAT_A4_PORTRAIT);
		editorUi.editor.outline.outline.pageFormat = graph.pageFormat;
		graph.pageScale = parseInt(pageScaleInput.value) / 100;
			
		if (!graph.pageVisible)
		{
			editorUi.actions.get('pageView').funct();
		}
		else
		{
			editorUi.editor.updateGraphComponents();
			graph.view.validateBackground();
			graph.sizeDidChange();
			editorUi.editor.outline.update();
		}
	}));

	td.appendChild(mxUtils.button(mxResources.get('cancel'), function()
	{
		editorUi.hideDialog();
	}));
	
	row.appendChild(td);
	tbody.appendChild(row);
	
	tbody.appendChild(row);
	table.appendChild(tbody);
	this.container = table;
};

/**
 * Constructs a new print dialog.
 */
function PrintDialog(editorUi)
{
	var graph = editorUi.editor.graph;
	var a4 = mxConstants.PAGE_FORMAT_A4_PORTRAIT;
	var pf = ((graph.pageFormat.width == a4.width && graph.pageFormat.height == a4.height) ||
			(graph.pageFormat.height == a4.width && graph.pageFormat.width == a4.height)) ?
			a4 : mxConstants.PAGE_FORMAT_LETTER_PORTRAIT;
	var row, td;
	
	var table = document.createElement('table');
	table.style.width = '100%';
	table.style.height = '100%';
	var tbody = document.createElement('tbody');
	
	row = document.createElement('tr');
	
	td = document.createElement('td');
	td.style.fontSize = '10pt';
	mxUtils.write(td, mxResources.get('paperSize') + ':');
	
	row.appendChild(td);
	
	var paperSizeSelect = document.createElement('select');

	var paperSizeA4Option = document.createElement('option');
	paperSizeA4Option.setAttribute('value', 'a4');
	mxUtils.write(paperSizeA4Option, 'A4');
	paperSizeSelect.appendChild(paperSizeA4Option);
	
	var paperSizeLetterOption = document.createElement('option');
	paperSizeLetterOption.setAttribute('value', 'letter');
	mxUtils.write(paperSizeLetterOption, 'Letter');
	paperSizeSelect.appendChild(paperSizeLetterOption);
	
	if (pf === mxConstants.PAGE_FORMAT_LETTER_PORTRAIT)
	{
		paperSizeLetterOption.setAttribute('selected', 'selected');
	}

	td = document.createElement('td');
	td.style.fontSize = '10pt';
	td.appendChild(paperSizeSelect);
	row.appendChild(td);
	
	tbody.appendChild(row);
	
	row = document.createElement('tr');
	
	td = document.createElement('td');
	row.appendChild(td);

	var landscapeCheckBox = document.createElement('input');
	landscapeCheckBox.setAttribute('type', 'checkbox');
	
	if (graph.pageFormat.width == pf.height)
	{
		landscapeCheckBox.setAttribute('checked', 'checked');
	}
	
	td = document.createElement('td');
	td.style.padding = '4 0 16 2px';
	td.style.fontSize = '10pt';
	td.appendChild(landscapeCheckBox);
	mxUtils.write(td, ' ' + mxResources.get('landscape'));
	row.appendChild(td);
	
	tbody.appendChild(row);

	row = document.createElement('tr');
	
	var pageCountCheckBox = document.createElement('input');
	pageCountCheckBox.setAttribute('type', 'checkbox');
	td = document.createElement('td');
	td.style.paddingRight = '10px';
	td.style.fontSize = '10pt';
	td.appendChild(pageCountCheckBox);
	mxUtils.write(td, ' ' + mxResources.get('posterPrint') + ':');
	row.appendChild(td);
	
	var pageCountInput = document.createElement('input');
	pageCountInput.setAttribute('value', '1');
	pageCountInput.setAttribute('type', 'number');
	pageCountInput.setAttribute('min', '1');
	pageCountInput.setAttribute('size', '4');
	pageCountInput.setAttribute('disabled', 'disabled');
	pageCountInput.style.width = '50px';

	td = document.createElement('td');
	td.style.fontSize = '10pt';
	td.appendChild(pageCountInput);
	mxUtils.write(td, ' ' + mxResources.get('pages'));
	row.appendChild(td);
	tbody.appendChild(row);

	mxEvent.addListener(pageCountCheckBox, 'change', function()
	{
		if (pageCountCheckBox.checked)
		{
			pageCountInput.removeAttribute('disabled');
		}
		else
		{
			pageCountInput.setAttribute('disabled', 'disabled');
		}
	});
	
	row = document.createElement('tr');
	td = document.createElement('td');
	td.colSpan = 2;
	td.style.paddingTop = '40px';
	td.setAttribute('align', 'right');
	
	function preview()
	{
		var ls = landscapeCheckBox.checked;
		var pf = (paperSizeSelect.value == 'letter') ?
			((ls) ? mxConstants.PAGE_FORMAT_LETTER_LANDSCAPE : mxConstants.PAGE_FORMAT_LETTER_PORTRAIT) :
			((ls) ? mxConstants.PAGE_FORMAT_A4_LANDSCAPE : mxConstants.PAGE_FORMAT_A4_PORTRAIT);
		
		var scale = 1 / graph.pageScale;
		
		if (pageCountCheckBox.checked)
		{
    		var pageCount = parseInt(pageCountInput.value);
			
			if (!isNaN(pageCount))
			{
				scale = mxUtils.getScaleForPageCount(pageCount, graph, pf);
			}
		}

		// Negative coordinates are cropped or shifted if page visible
		var gb = graph.getGraphBounds();
		var autoOrigin = pageCountCheckBox.checked;
		var border = 0;
		var x0 = 0;
		var y0 = 0;
		
		// Computes unscaled, untranslated graph bounds
		var x = (gb.width > 0) ? gb.x / graph.view.scale - graph.view.translate.x : 0;
		var y = (gb.height > 0) ? gb.y / graph.view.scale - graph.view.translate.y : 0;

		if (x < 0 || y < 0)
		{
			autoOrigin = true;
			
			if (graph.pageVisible)
			{
				var ps = graph.pageScale;
				var pw = pf.width * ps;
				var ph = pf.height * ps;

				x0 = (x > 0) ? x : pf.width * -Math.floor(Math.min(0, x) / pw) + Math.min(0, x) / graph.pageScale;
				y0 = (y > 0) ? y : pf.height * -Math.floor(Math.min(0, y) / ph) + Math.min(0, y) / graph.pageScale;
			}
			else
			{
				x0 = 10;
				y0 = 10;
			}
		}

		var preview = new mxPrintPreview(graph, scale, pf, border, x0, y0);
		preview.title = mxResources.get('preview');
		preview.autoOrigin = autoOrigin;
		
		return preview.open();
	};

	td.appendChild(mxUtils.button(mxResources.get('print'), function()
	{
		editorUi.hideDialog();
		preview().print();
	}));

	td.appendChild(mxUtils.button(mxResources.get('preview'), function()
	{
		editorUi.hideDialog();
		preview();
	}));
	
	td.appendChild(mxUtils.button(mxResources.get('cancel'), function()
	{
		editorUi.hideDialog();
	}));
	
	row.appendChild(td);
	tbody.appendChild(row);
	
	tbody.appendChild(row);
	table.appendChild(tbody);
	this.container = table;
};

/**
 * Constructs a new save dialog.
 */
function SaveDialog(editorUi)
{
	var row, td;
	
	var table = document.createElement('table');
	var tbody = document.createElement('tbody');
	
	row = document.createElement('tr');
	
	td = document.createElement('td');
	td.style.fontSize = '10pt';
	td.style.width = '100px';
	mxUtils.write(td, mxResources.get('filename') + ':');
	
	row.appendChild(td);
	
	var nameInput = document.createElement('input');
	nameInput.setAttribute('value', editorUi.editor.getOrCreateFilename());
	nameInput.style.width = '180px';

	td = document.createElement('td');
	td.appendChild(nameInput);
	row.appendChild(td);
	
	tbody.appendChild(row);

	row = document.createElement('tr');
	td = document.createElement('td');
	td.colSpan = 2;
	td.style.paddingTop = '30px';
	td.style.whiteSpace = 'nowrap';
	td.setAttribute('align', 'right');

	var saveBtn = mxUtils.button(mxResources.get('save'), function()
	{
    	editorUi.save(nameInput.value);
    	editorUi.hideDialog();
	});
	
	td.appendChild(saveBtn);
	td.appendChild(mxUtils.button(mxResources.get('cancel'), function()
	{
		editorUi.hideDialog();
	}));
	
	row.appendChild(td);
	tbody.appendChild(row);
	
	tbody.appendChild(row);
	table.appendChild(tbody);
	this.container = table;
};

/**
 * Constructs a new edit file dialog.
 */
function EditFileDialog(editorUi)
{
	var div = document.createElement('div');
	div.style.textAlign = 'right';
	var textarea = document.createElement('textarea');
	textarea.style.width = '600px';
	textarea.style.height = '374px';
	
	textarea.value = mxUtils.getPrettyXml(editorUi.editor.getGraphXml());
	div.appendChild(textarea);
	
	// Enables dropping files
	if (fileSupport)
	{
		function handleDrop(evt)
		{
		    evt.stopPropagation();
		    evt.preventDefault();
		    
		    if (evt.dataTransfer.files.length > 0)
		    {
    			var file = evt.dataTransfer.files[0];
    			
				var reader = new FileReader();
				reader.onload = function(e) { textarea.value = e.target.result; };
				reader.readAsText(file);
    		}
		};
		
		function handleDragOver(evt)
		{
			evt.stopPropagation();
			evt.preventDefault();
		};

		// Setup the dnd listeners.
		textarea.addEventListener('dragover', handleDragOver, false);
		textarea.addEventListener('drop', handleDrop, false);
	}
	
	var select = document.createElement('select');
	select.style.width = '180px';

	var newOption = document.createElement('option');
	newOption.setAttribute('value', 'new');
	mxUtils.write(newOption, mxResources.get('openInNewWindow'));
	select.appendChild(newOption);

	var replaceOption = document.createElement('option');
	replaceOption.setAttribute('value', 'replace');
	mxUtils.write(replaceOption, mxResources.get('replaceExistingDrawing'));
	select.appendChild(replaceOption);
	
	var importOption = document.createElement('option');
	importOption.setAttribute('value', 'import');
	mxUtils.write(importOption, mxResources.get('addToExistingDrawing'));
	select.appendChild(importOption);
	
	div.appendChild(select);

	div.appendChild(mxUtils.button(mxResources.get('ok'), function()
	{
		if (select.value == 'new')
		{
			window.openFile = new OpenFile(function()
			{
				editorUi.hideDialog();
				window.openFile = null;
			});
			
			window.openFile.setData(textarea.value, null);
			window.open(editorUi.getUrl());
		}
		else if (select.value == 'replace')
		{
			var doc = mxUtils.parseXml(textarea.value); 
			editorUi.editor.setGraphXml(doc.documentElement);
			editorUi.hideDialog();
		}
		else if (select.value == 'import')
		{
			var doc = mxUtils.parseXml(textarea.value);
			var model = new mxGraphModel();
			var codec = new mxCodec(doc);
			codec.decode(doc.documentElement, model);
			
			var children = model.getChildren(model.getChildAt(model.getRoot(), 0));
			editorUi.editor.graph.setSelectionCells(editorUi.editor.graph.importCells(children));
			
			editorUi.hideDialog();
		}
	}));
	
	div.appendChild(mxUtils.button(mxResources.get('cancel'), function()
	{
		editorUi.hideDialog();
	}));
	
	this.container = div;
};

/**
 * Constructs a new export dialog.
 */
function ExportDialog(editorUi)
{
	var graph = editorUi.editor.graph;
	var bounds = graph.getGraphBounds();
	var scale = graph.view.scale;
	
	var width = Math.ceil(bounds.width / scale);
	var height = Math.ceil(bounds.height / scale);

	var row, td;
	
	var table = document.createElement('table');
	var tbody = document.createElement('tbody');
	
	row = document.createElement('tr');
	
	td = document.createElement('td');
	td.style.fontSize = '10pt';
	td.style.width = '100px';
	mxUtils.write(td, mxResources.get('filename') + ':');
	
	row.appendChild(td);
	
	var nameInput = document.createElement('input');
	nameInput.setAttribute('value', editorUi.editor.getOrCreateFilename());
	nameInput.style.width = '180px';

	td = document.createElement('td');
	td.appendChild(nameInput);
	row.appendChild(td);
	
	tbody.appendChild(row);
		
	row = document.createElement('tr');
	
	td = document.createElement('td');
	td.style.fontSize = '10pt';
	mxUtils.write(td, mxResources.get('format') + ':');
	
	row.appendChild(td);
	
	var imageFormatSelect = document.createElement('select');
	imageFormatSelect.style.width = '180px';

	var pngOption = document.createElement('option');
	pngOption.setAttribute('value', 'png');
	mxUtils.write(pngOption, 'PNG - Portable Network Graphics');
	imageFormatSelect.appendChild(pngOption);

	var gifOption = document.createElement('option');
	gifOption.setAttribute('value', 'gif');
	mxUtils.write(gifOption, 'GIF - Graphics Interchange Format');
	imageFormatSelect.appendChild(gifOption);
	
	var jpgOption = document.createElement('option');
	jpgOption.setAttribute('value', 'jpg');
	mxUtils.write(jpgOption, 'JPG - JPEG File Interchange Format');
	imageFormatSelect.appendChild(jpgOption);

	var pdfOption = document.createElement('option');
	pdfOption.setAttribute('value', 'pdf');
	mxUtils.write(pdfOption, 'PDF - Portable Document Format');
	imageFormatSelect.appendChild(pdfOption);
	
	var svgOption = document.createElement('option');
	svgOption.setAttribute('value', 'svg');
	mxUtils.write(svgOption, 'SVG - Scalable Vector Graphics');
	imageFormatSelect.appendChild(svgOption);
	
	var xmlOption = document.createElement('option');
	xmlOption.setAttribute('value', 'xml');
	mxUtils.write(xmlOption, 'XML - Diagramly XML Document');
	imageFormatSelect.appendChild(xmlOption);

	td = document.createElement('td');
	td.appendChild(imageFormatSelect);
	row.appendChild(td);
	
	tbody.appendChild(row);
			
	row = document.createElement('tr');

	td = document.createElement('td');
	td.style.fontSize = '10pt';
	mxUtils.write(td, mxResources.get('width') + ':');
	
	row.appendChild(td);
	
	var widthInput = document.createElement('input');
	widthInput.setAttribute('value', width);
	widthInput.style.width = '180px';

	td = document.createElement('td');
	td.appendChild(widthInput);
	row.appendChild(td);

	tbody.appendChild(row);
	
	row = document.createElement('tr');
	
	td = document.createElement('td');
	td.style.fontSize = '10pt';
	mxUtils.write(td, mxResources.get('height') + ':');
	
	row.appendChild(td);
	
	var heightInput = document.createElement('input');
	heightInput.setAttribute('value', height);
	heightInput.style.width = '180px';

	td = document.createElement('td');
	td.appendChild(heightInput);
	row.appendChild(td);

	tbody.appendChild(row);
	
	row = document.createElement('tr');

	td = document.createElement('td');
	td.style.fontSize = '10pt';
	mxUtils.write(td, mxResources.get('borderWidth') + ':');
	
	row.appendChild(td);
	
	var borderInput = document.createElement('input');
	borderInput.setAttribute('value', width);
	borderInput.style.width = '180px';
	borderInput.value = '0';

	td = document.createElement('td');
	td.appendChild(borderInput);
	row.appendChild(td);

	tbody.appendChild(row);
	table.appendChild(tbody);
	
	// Handles changes in the export format
	function formatChanged()
	{
		var name = nameInput.value;
		var dot = name.lastIndexOf('.');
		
		if (dot > 0)
		{
			nameInput.value = name.substring(0, dot + 1) + imageFormatSelect.value;
		}
		else
		{
			nameInput.value = name + '.' + imageFormatSelect.value;
		}
		
		if (imageFormatSelect.value === 'xml')
		{
			widthInput.setAttribute('disabled', 'true');
			heightInput.setAttribute('disabled', 'true');
			borderInput.setAttribute('disabled', 'true');
		}
		else
		{
			widthInput.removeAttribute('disabled');
			heightInput.removeAttribute('disabled');
			borderInput.removeAttribute('disabled');
		}
	};
	
	mxEvent.addListener(imageFormatSelect, 'change', formatChanged);
	formatChanged();
	
	function checkValues()
	{
		if (widthInput.value * heightInput.value > MAX_AREA || widthInput.value < 0)
		{
			widthInput.style.backgroundColor = 'red';
		}
		else
		{
			widthInput.style.backgroundColor = '';
		}
		
		if (widthInput.value * heightInput.value > MAX_AREA || heightInput.value < 0)
		{
			heightInput.style.backgroundColor = 'red';
		}
		else
		{
			heightInput.style.backgroundColor = '';
		}
	};

	mxEvent.addListener(widthInput, 'change', function()
	{
		if (width > 0)
		{
			heightInput.value = Math.ceil(parseInt(widthInput.value) * height / width);
		}
		else
		{
			heightInput.value = '0';
		}
		
		checkValues();
	});

	mxEvent.addListener(heightInput, 'change', function()
	{
		if (height > 0)
		{
			widthInput.value = Math.ceil(parseInt(heightInput.value) * width / height);
		}
		else
		{
			widthInput.value = '0';
		}
		
		checkValues();
	});

	// Reusable image export instance
	var imgExport = new mxImageExport();

	row = document.createElement('tr');
	td = document.createElement('td');
	td.colSpan = 2;
	td.style.paddingTop = '40px';
	td.setAttribute('align', 'right');
	td.appendChild(mxUtils.button(mxResources.get('save'), mxUtils.bind(this, function()
	{
		if (parseInt(widthInput.value) <= 0 && parseInt(heightInput.value) <= 0)
		{
			mxUtils.alert(mxResources.get('drawingEmpty'));
		}
		else
		{
			var format = imageFormatSelect.value;
	    	var name = nameInput.value;
	    	
	        if (format == 'xml')
	    	{
	        	var xml = encodeURIComponent(mxUtils.getXml(editorUi.editor.getGraphXml()));
				new mxXmlRequest(SAVE_URL, 'filename=' + name + '&xml=' + xml).simulate(document, "_blank");
	    	}
	        else if (format == 'svg')
	    	{
				var b = Math.max(0, parseInt(borderInput.value)) + 1;
				var scale = parseInt(widthInput.value) / width;
			    var bounds = graph.getGraphBounds();
				var vs = graph.view.scale;
	
			    // Prepares SVG document that holds the output
			    var svgDoc = mxUtils.createXmlDocument();
			    var root = (svgDoc.createElementNS != null) ?
			    	svgDoc.createElementNS(mxConstants.NS_SVG, 'svg') : svgDoc.createElement('svg');
			    
			    if (graph.background != null)
			    {
					if (root.style != null)
					{
						root.style.backgroundColor = graph.background;
					}
					else
					{
						root.setAttribute('style', 'background-color:' + graph.background);
					}
			    }
			    
			    if (svgDoc.createElementNS == null)
			    {
			    	root.setAttribute('xmlns', mxConstants.NS_SVG);
			    }
			    
			    root.setAttribute('width', Math.ceil(bounds.width * scale / vs + 2 * b) + 'px');
			    root.setAttribute('height', Math.ceil(bounds.height * scale / vs + 2 * b) + 'px');
		    	root.setAttribute('xmlns:xlink', mxConstants.NS_XLINK);
			    root.setAttribute('version', '1.1');

			    // Adds group for anti-aliasing via transform
			    var group = (svgDoc.createElementNS != null) ?
				    	svgDoc.createElementNS(mxConstants.NS_SVG, 'g') : svgDoc.createElement('g');
				group.setAttribute('transform', 'translate(0.5,0.5)');
				root.appendChild(group);
			    svgDoc.appendChild(root);

			    // Renders graph. Offset will be multiplied with state's scale when painting state.
			    var svgCanvas = new mxSvgCanvas2D(group);
			    svgCanvas.translate(Math.floor((b / scale - bounds.x) / vs), Math.floor((b / scale - bounds.y) / vs));
			    svgCanvas.scale(scale / vs);
			    imgExport.drawState(graph.getView().getState(graph.model.root), svgCanvas);
	
				var xml = mxUtils.getXml(root);
	
				if (xml.length < MAX_REQUEST_SIZE)
				{
					xml = encodeURIComponent(xml);
					new mxXmlRequest(SAVE_URL, 'filename=' + name + '&format=' + format +
							'&xml=' + xml).simulate(document, "_blank");
				}
				else
				{
					mxUtils.alert(mxResources.get('drawingTooLarge'));
					mxUtils.popup(xml);
				}
	    	}
	        else
	        {
				var b = Math.max(0, parseInt(borderInput.value)) + 1;
				var scale = parseInt(widthInput.value) / width;
				var bounds = graph.getGraphBounds();
				var vs = graph.view.scale;
				
	        	// New image export
				var xmlDoc = mxUtils.createXmlDocument();
				var root = xmlDoc.createElement('output');
				xmlDoc.appendChild(root);

			    // Renders graph. Offset will be multiplied with state's scale when painting state.
				var xmlCanvas = new mxXmlCanvas2D(root);
				xmlCanvas.translate(Math.floor((b / scale - bounds.x) / vs), Math.floor((b / scale - bounds.y) / vs));
				xmlCanvas.scale(scale / vs);
			    imgExport.drawState(graph.getView().getState(graph.model.root), xmlCanvas);

				// Puts request data together
				var w = Math.ceil(bounds.width * scale / vs + 2 * b);
				var h = Math.ceil(bounds.height * scale / vs + 2 * b);
				var xml = mxUtils.getXml(root);

				// Requests image if request is valid
				if (xml.length <= MAX_REQUEST_SIZE && w > 0 && h > 0 && w * h < MAX_AREA)
				{
					var bg = graph.background || '#ffffff';
					
					new mxXmlRequest(EXPORT_URL, 'filename=' + name + '&format=' + format +
	        			'&bg=' + bg + '&w=' + w + '&h=' + h + '&plain=' + encodeURIComponent(xml)).
	        			simulate(document, '_blank');
				}
				else
				{
					mxUtils.alert(mxResources.get('drawingTooLarge'));
				}
	    	}
	        
			editorUi.hideDialog();
		}
	})));
	td.appendChild(mxUtils.button(mxResources.get('cancel'), function()
	{
		editorUi.hideDialog();
	}));
	
	row.appendChild(td);
	tbody.appendChild(row);
	
	tbody.appendChild(row);
	table.appendChild(tbody);
	this.container = table;
};