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<html>

<head>
    <meta content="text/html;charset=utf-8" http-equiv="Content-Type">
    <meta content="utf-8" http-equiv="encoding">
    <title>Xcos</title>
    <style type="text/css" media="screen">
        BODY {
            font-family: Arial;
        }
        
        H1 {
            font-size: 18px;
        }
        
        H2 {
            font-size: 16px;
        }
    </style>

    <!-- Loads and initializes the library -->
    <script type="text/javascript" src="jquery/jquery-1.8.2.js"></script>
    <script type="text/javascript" src="mxClient.min.js"></script>
    <script type="text/javascript" src="editor/mxDefaultKeyHandler.js"></script>
    <script type="text/javascript" src="handler/mxKeyHandler.js"></script>
    <script type="text/javascript" src="jquery/farbtastic.js"></script>

    <link rel="stylesheet" href="jquery/farbtastic.css" type="text/css" />
    <link rel="stylesheet" href="jquery/jquery-ui.css">

    <script type="text/javascript" src="details.js"></script>
    <script type="text/javascript" src="json2.js"></script>
    <script type="text/javascript">
        function main(container, outline, toolbar, sidebar, status) {
            // Checks if the browser is supported
            if (!mxClient.isBrowserSupported()) {
                // Displays an error message if the browser is not supported.
                mxUtils.error('Browser is not supported!', 200, false);
            } else {
                // If connect preview is not moved away then getCellAt is used to detect the cell under
                // the mouse if the mouse is over the preview shape in IE (no event transparency), ie.
                // the built-in hit-detection of the HTML document will not be used in this case.
                mxConnectionHandler.prototype.movePreviewAway = false;
                mxConnectionHandler.prototype.waypointsEnabled = true;
                mxGraph.prototype.resetEdgesOnConnect = false;

                // Enables guides
                mxGraphHandler.prototype.guidesEnabled = true;

                // Alt disables guides
                mxGuide.prototype.isEnabledForEvent = function(evt) {
                    return !mxEvent.isAltDown(evt);
                };

                // Enables snapping waypoints to terminals
                mxEdgeHandler.prototype.snapToTerminals = true;

                // Assigns some global constants for general behaviour, eg. minimum
                // size (in pixels) of the active region for triggering creation of
                // new connections, the portion (100%) of the cell area to be used
                // for triggering new connections, as well as some fading options for
                // windows and the rubberband selection.
                mxConstants.MIN_HOTSPOT_SIZE = 16;
                mxConstants.DEFAULT_HOTSPOT = 1;

                // Workaround for Internet Explorer ignoring certain CSS directives
                if (mxClient.IS_QUIRKS) {
                    document.body.style.overflow = 'hidden';
                    new mxDivResizer(container);
                    new mxDivResizer(outline);
                    new mxDivResizer(toolbar);
                    new mxDivResizer(sidebar);
                    new mxDivResizer(status);
                }

                // Creates a wrapper editor with a graph inside the given container.
                // The editor is used to create certain functionality for the
                // graph, such as the rubberband selection, but most parts
                // of the UI are custom in this example.
                var editor = new mxEditor();
                var graph = editor.graph;
                var model = graph.getModel();

                graph.setPanning(true);
                graph.setConnectable(true);
                graph.setConnectableEdges(true);
                graph.setDisconnectOnMove(false);
                graph.foldingEnabled = false;

                // Disable highlight of cells when dragging from toolbar
                graph.setDropEnabled(false);

                // Centers the port icon on the target port
                graph.connectionHandler.targetConnectImage = true;

                // Does not allow dangling edges
                graph.setAllowDanglingEdges(false);

                // Sets the graph container and configures the editor
                editor.setGraphContainer(container);

                // Disables built-in context menu
                mxEvent.disableContextMenu(document.body);

                // Configures automatic expand on mouseover
                graph.panningHandler.autoExpand = true;

                // Creates a right-click menu
                graph.panningHandler.factoryMethod = function(menu, cell, evt) {

                    if (cell != null) {

                        if (cell.value == "ExplicitInputPort" || cell.value == "ExplicitOutputPort" || cell.value == "CommandPort" || cell.value == "ControlPort") {

                        } else if (cell.isEdge() == true) // @ToDo: Pooja: Different edge value cases.
                        {

                            menu.addItem('Delete', 'images/delete2.png', function() {
                                editor.execute('delete');
                            });
                            var edgeformat = menu.addItem('Format', null, null);

                            menu.addItem('Border Color', 'images/draw-brush.png', function() {
                                // @ToDo: Pooja: Functionality to be put.   
                                showColorWheel(graph, cell, 'edgeStrokeColor');

                            }, edgeformat);
                            menu.addItem('Text and Text Font', 'images/edit.png', function() {
                                alert('Edit...'); // @ToDo: Pooja: Functionality to be put.
                            }, edgeformat);
                            menu.addItem('Text Color', 'images/edit.png', function() {
                                alert('Edit...'); // @ToDo: Pooja: Functionality to be put.
                            }, edgeformat);

                        } else {
                            menu.addItem('Block Parameters...', 'images/gear.gif', function() {
                                showPropertiesWindow(graph, cell);
                            });

                            menu.addItem('Cut', 'images/cut.png', function() {
                                editor.execute('cut');
                            });
                            menu.addItem('Copy', 'images/copy.png', function() {
                                editor.execute('copy');
                            });
                            menu.addItem('Delete', 'images/delete2.png', function() {
                                editor.execute('delete');
                            });

                            menu.addItem('Selection to superblock', 'images/superblock.png', function() {
                                // @ToDo: Pooja: Functionality to be put.
                            });
                            var format = menu.addItem('Format', null, null);

                            menu.addItem('Rotate', 'images/rotate.png', function() {
                                editor.execute('rotateCustom');
                            }, format);
                            menu.addItem('Border Color', 'images/draw-brush.png', function() {
                                showColorWheel(graph, cell, 'vertexStrokeColor');

                            }, format);
                            menu.addItem('Fill Color', 'images/edit.png', function() {
                                showColorWheel(graph, cell, 'vertexFillColor');
                            }, format);
                            menu.addItem('Details', null, function() {
                                // @ToDo: Pooja: Functionality to be put.
                            });
                        }
                    } else {
                        menu.addItem('Undo', 'images/undo.png', function() {
                            editor.execute('undo');
                        });
                        menu.addItem('Redo', 'images/redo.png', function() {
                            editor.execute('redo');
                        });
                        menu.addItem('Paste', 'images/paste.png', function() {
                            editor.execute('paste');
                        });
                        menu.addItem('Select all', 'images/selectall.png', function() {
                            editor.execute('selectAll');
                        });
                        menu.addItem('Set Context', null, function() {
                            // @ToDo: Pooja: Functionality to be put.
                        });
                        menu.addItem('Setup', 'images/setup.png', function() {
                            // @ToDo: Pooja: Functionality to be put.
                        });
                        menu.addItem('Zoom In', 'images/zoom_in.png', function() {
                            editor.execute('zoomIn');
                        });
                        menu.addItem('Zoom Out', 'images/zoom_out.png', function() {
                            editor.execute('zoomOut');
                        });
                        menu.addItem('Diagram background...', null, function() {
                            showColorWheel(graph, cell, 'bgColor');
                        });
                    }

                };

                //var config = mxUtils.load('config/editor-commons.xml').getDocumentElement();
                var config = mxUtils.load('config/keyhandler-commons.xml').getDocumentElement();
                editor.configure(config);

                // @jiteshjha, @pooja
                /*
                   The code creates a function that informs the undoManager of an undoable edit
                   and binds it to the undo event of mxGraphModel and mxGraphView
                   using mxEventSource.addListener.
                */
                var undoManager = new mxUndoManager();
                var listener = function(sender, evt) {
                    undoManager.undoableEditHappened(evt.getProperty('edit'));
                };
                graph.getModel().addListener(mxEvent.UNDO, listener);
                graph.getModel().addListener(mxEvent.REDO, listener);
                graph.getView().addListener(mxEvent.UNDO, listener);
                graph.getView().addListener(mxEvent.REDO, listener);

                editor.addAction('undoCustom', function(editor, cell) {
                    undoManager.undo();
                });

                editor.addAction('redoCustom', function(editor, cell) {
                    undoManager.redo();
                });

                /*
                  For every click on the graph, check if the selected mxCell is the recently created edge,
                  and then check if that edge satisfies one of the port constraints.

                */
                graph.addListener(mxEvent.CLICK, function(sender, evt) {
                    var selectedEdgeObject = graph.getSelectionCell();
                    if (selectedEdgeObject != null && selectedEdgeObject.isEdge() == true) {

                        var selectedEdgeObject = graph.getSelectionCell();
                        var target = selectedEdgeObject.target;
                        var source;

                        if (selectedEdgeObject != null && selectedEdgeObject.isEdge() == true) {
                            function getEdgeId(edgeObject) {
                                while (edgeObject.source != null && edgeObject.source.isEdge() == true) {
                                    edgeObject = edgeObject.source;
                                }
                                return edgeObject.source;
                            }

                            if (selectedEdgeObject.isEdge() == true) {
                                source = getEdgeId(selectedEdgeObject);
                            }
                            if (source != null && target != null) {
                                if (!(((source.value == "ExplicitOutputPort" && target.value == "ExplicitInputPort") ||
                                            (source.value == "ExplicitInputPort" && target.value == "ExplicitOutputPort") ||
                                            (source.value == "ImplicitOutputPort" && target.value == "ImplicitInputPort") ||
                                            (source.value == "ImplicitInputPort" && target.value == "ImplicitOutputPort") ||
                                            (source.value == "CommandPort" && target.value == "ControlPort") ||
                                            (source.value == "ControlPort" && target.value == "CommandPort")) &&
                                        (source.getEdgeCount() <= 1 && source.isVertex() == true &&
                                            target.getEdgeCount() <= 1 && target.isVertex() == true)
                                    )) {

                                    if (!(source.getEdgeCount() <= 1 && source.isVertex() == true &&
                                            target.getEdgeCount() <= 1 && target.isVertex() == true)) {
                                        alert("Port is already connected, please select an please select an unconnected port or a valid link");
                                    } else if (source.value == "ImplicitInputPort") {
                                        alert("Implicit data input port must be connected to implicit data output port");
                                    } else if (source.value == "ImplicitOutputPort") {
                                        alert("Implicit data output port must be connected to implicit data input port");
                                    } else if (source.value == "ExplicitOutputPort") {
                                        alert("Explicit data output port must be connected to explicit data input port");
                                    } else if (source.value == "ExplicitInputPort") {
                                        alert("Explicit data input port must be connected to explicit data output port");
                                    } else if (source.value = "ControlPort") {
                                        alert("Control port must be connected to command port");
                                    } else if (source.value = "CommandPort") {
                                        alert("Command port must be connected to control port");
                                    }

                                    /*
                                      Remove last mxEvent from the undoManager history stack, 
                                      Store all the remaining undo mxEvents into a temporary array, 
                                      clears the history, and readds the mxEvents into the undoManager history stack.
                                    */
                                    editor.execute('undo');

                                    // Remove the last element from the history array.
                                    undoManager.history.splice(-1, 1);

                                    // storage[] -> temporary array
                                    var storage = [];
                                    for (i in undoManager.history) {
                                        if (undoManager.history[i] != null) {
                                            storage.push(undoManager.history[i])
                                        }
                                    }

                                    // Clear the undoManager history, and reset the undoManager pointer to avoid any undo of null events.
                                    undoManager.clear();

                                    // Move the remaning mxEvents back into the undoManager history stack.
                                    for (i in storage) {
                                        if (storage[i] != null) {
                                            undoManager.undoableEditHappened(storage[i]);
                                        }
                                    }
                                }
                            }
                        }
                    }
                });

                // Disables drag-and-drop into non-swimlanes.
                graph.isValidDropTarget = function(cell, cells, evt) {
                    return this.isSwimlane(cell);
                };


                // Disables drilling into non-swimlanes.
                graph.isValidRoot = function(cell) {
                    return this.isValidDropTarget(cell);
                }

                // Does not allow selection of locked cells
                graph.isCellSelectable = function(cell) {
                    return !this.isCellLocked(cell);
                };

                // Returns a shorter label if the cell is collapsed and no
                // label for expanded groups
                graph.getLabel = function(cell) {
                    var tmp = mxGraph.prototype.getLabel.apply(this, arguments); // "supercall"

                    if (this.isCellLocked(cell)) {
                        // Returns an empty label but makes sure an HTML
                        // element is created for the label (for event
                        // processing wrt the parent label)
                        return '';
                    } else if (this.isCellCollapsed(cell)) {
                        var index = tmp.indexOf('</h1>');

                        if (index > 0) {
                            tmp = tmp.substring(0, index + 5);
                        }
                    }

                    return tmp;
                }

                // Disables HTML labels for swimlanes to avoid conflict
                // for the event processing on the child cells. HTML
                // labels consume events before underlying cells get the
                // chance to process those events.
                //
                // NOTE: Use of HTML labels is only recommended if the specific
                // features of such labels are required, such as special label
                // styles or interactive form fields. Otherwise non-HTML labels
                // should be used by not overidding the following function.
                // See also: configureStylesheet.
                graph.isHtmlLabel = function(cell) {
                    return !this.isSwimlane(cell);
                }

                // To disable the folding icon, use the following code:
                graph.isCellFoldable = function(cell) {
                    return false;
                }

                // Shows a "modal" window when double clicking a vertex.
                graph.dblClick = function(evt, cell) {
                    // Do not fire a DOUBLE_CLICK event here as mxEditor will
                    // consume the event and start the in-place editor.
                    if (this.isEnabled() &&
                        !mxEvent.isConsumed(evt) &&
                        cell != null &&
                        this.isCellEditable(cell)) {
                        if (!this.isHtmlLabel(cell)) {
                            this.startEditingAtCell(cell);
                        } else {
                            /*
                            var content = document.createElement('div');
                            content.innerHTML = this.convertValueToString(cell);
                            showModalWindow(this, 'Properties', content, 400, 300);
                            */
                            showPropertiesWindow(graph, cell);
                        }
                    }

                    // Disables any default behaviour for the double click
                    mxEvent.consume(evt);
                };

                graph.getTooltipForCell = function(cell) {
                    var text = null;
                    // If cell is a block or port
                    if (cell.source == null && cell.target == null) {
                        if (cell.connectable) { // Cell is a port
                            // @ToDo: Port Number
                            text = 'Style : ' + cell.style + "\n";
                        } else { //Cell is a block
                            // @ToDo: Block Name, Simulation, Flip, Mirror
                            // @ToDo: Number of Input, Output, Control, Command Ports
                            var geometry = cell.getGeometry();
                            text = 'UID : ' + cell.id + "\n" +
                                'Style : ' + cell.style + "\n" +
                                'x : ' + geometry.x + "\n" +
                                'y : ' + geometry.y + "\n" +
                                'w : ' + geometry.width + "\n" +
                                'h : ' + geometry.height + "\n";
                        }
                    }
                    return text;
                };

                // Create XML tags!
                // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
                // https://jgraph.github.io/mxgraph/docs/js-api/files/model/mxCell-js.html
                // Uncomment this block to see XML tags work
                /*graph.convertValueToString = function(cell)
                {
                  if (mxUtils.isNode(cell.value))
                  {
                    return cell.getAttribute('label', '');
                  }
                };*/

                var cellLabelChanged = graph.cellLabelChanged;
                graph.cellLabelChanged = function(cell, newValue, autoSize) {
                    if (mxUtils.isNode(cell.value)) {
                        // Clones the value for correct undo/redo
                        var elt = cell.value.cloneNode(true);
                        elt.setAttribute('label', newValue);
                        newValue = elt;
                    }

                    cellLabelChanged.apply(this, arguments);
                };

                // Enables new connections
                graph.setConnectable(true);

                // Adds all required styles to the graph (see below)
                configureStylesheet(graph);

                // Adds sidebar icons.
                addIcons(graph, sidebar);

                // Creates a new DIV that is used as a toolbar and adds
                // toolbar buttons.
                var spacer = document.createElement('div');
                spacer.style.display = 'inline';
                spacer.style.padding = '8px';

                // Defines a new export action
                editor.addAction('toggle', function(editor, cell) {
                    var toggle = document.getElementById("toggleBlocks");
                    var button = document.getElementById("toggle");
                    toggle.click();
                    button.innerHTML = '';
                    if (toggle.innerHTML == 'Expand All') {
                        createButtonImage(button, 'images/navigate_plus.png');
                    } else if (toggle.innerHTML == 'Collapse All') {
                        createButtonImage(button, 'images/navigate_minus.png');
                    }
                    var titleName = document.createTextNode(toggle.innerHTML);
                    button.appendChild(titleName);
                });


                /*
                	@pooja, @jiteshjha
					Create a custom rotate action for a selected cell.
                */
                editor.addAction('rotateCustom', function(editor, cell) {
                    selectedCell = graph.getSelectionCell();
                    if (selectedCell != null) {
                        var cells = [];
                        cells.push(selectedCell);
                        for (var i = 0; i < selectedCell.getChildCount(); i++)
                            cells.push(selectedCell.getChildAt(i));
                        graph.getModel().beginUpdate();
                        try {
                            for (var i = 0; i < cells.length; i++) {
                                var cell = cells[i];
                                if (cell.isVertex() == true) {
                                    var geo = graph.getCellGeometry(cell);

                                    if (geo != null) {
                                        // Rotates the size and position in the geometry
                                        geo = geo.clone();
                                        geo.x += geo.width / 2 - geo.height / 2;
                                        geo.y += geo.height / 2 - geo.width / 2;
                                        var tmp = geo.width;
                                        geo.width = geo.height;
                                        geo.height = tmp;
                                        graph.getModel().setGeometry(cell, geo);
                                        // Reads the current direction and advances by 90 degrees
                                        var state = graph.view.getState(cell);

                                        if (state != null) {
                                            if (cell.isConnectable() == true) {
                                                if (cell.value == "ExplicitOutputPort" || cell.value == "ImplicitOutputPort") {
                                                    var dir = state.style[mxConstants.STYLE_DIRECTION] || 'east';
                                                    var geoCell = cell.getGeometry();
                                                    if (dir == 'east' || dir == 'west') {
                                                        var temp = geoCell.x;
                                                        geoCell.x = geoCell.y - 0.0625;
                                                        geoCell.y = temp + 0.0625;
                                                        cell.setGeometry(geoCell);
                                                        if (dir == 'east')
                                                            dir = 'south';
                                                        else
                                                            dir = 'north';
                                                    } else if (dir == 'south' || dir == 'north') {

                                                        geoCell.y = geoCell.x + 0.0625;
                                                        if (dir == 'south') {
                                                            dir = 'west';
                                                            geoCell.x = 0 - 0.125;
                                                        } else {
                                                            dir = 'east';
                                                            geoCell.x = 1;
                                                        }
                                                        cell.setGeometry(geoCell);
                                                    }
                                                } else if (cell.value == "ExplicitInputPort" || cell.value == "ImplicitInputPort") {
                                                    var dir = state.style[mxConstants.STYLE_DIRECTION] || 'east';
                                                    var geoCell = cell.getGeometry();
                                                    if (dir == 'south' || dir == 'north') {
                                                        geoCell.y = geoCell.x - 0.0625;
                                                        if (dir == 'south') {
                                                            dir = 'west';
                                                            geoCell.x = 1 + 0.125;
                                                        } else {
                                                            dir = 'east';
                                                            geoCell.x = 0;
                                                        }
                                                        cell.setGeometry(geoCell);
                                                    } else if (dir == 'east' || dir == 'west') {
                                                        geoCell = geoCell.clone();
                                                        var temp = geoCell.x;
                                                        geoCell.x = parseFloat(geoCell.y) + 0.0625;
                                                        geoCell.y = temp - 0.0625;
                                                        cell.setGeometry(geoCell);
                                                        if (dir == 'east')
                                                            dir = 'south';
                                                        else
                                                            dir = 'north';
                                                    }
                                                } else if (cell.value == 'CommandPort') {
                                                    var dir = state.style[mxConstants.STYLE_DIRECTION] || 'east';
                                                    var geoCell = cell.getGeometry();
                                                    if (dir == 'south' || dir == 'north') {
                                                        var temp = geoCell.x;
                                                        geoCell.x = geoCell.y + 0.0625;
                                                        geoCell.y = temp - 0.0625;
                                                        cell.setGeometry(geoCell);
                                                        if (dir == 'south')
                                                            dir = 'west';
                                                        else
                                                            dir = 'east';
                                                    } else if (dir == 'east' || dir == 'west') {
                                                        geoCell.y = parseFloat(geoCell.x) - 0.0625;
                                                        if (dir == 'east') {
                                                            dir = 'south';
                                                            geoCell.x = 0 - 0.0625;
                                                        } else {
                                                            dir = 'north';
                                                            geoCell.x = 1 + 0.0625;
                                                        }
                                                        cell.setGeometry(geoCell);
                                                    }
                                                } else if (cell.value == 'ControlPort') {
                                                    var dir = state.style[mxConstants.STYLE_DIRECTION] || 'east';
                                                    var geoCell = cell.getGeometry();
                                                    if (dir == 'south' || dir == 'north') {
                                                        var temp = geoCell.x;
                                                        geoCell.x = geoCell.y - 0.0625;
                                                        geoCell.y = temp + 0.0625;
                                                        cell.setGeometry(geoCell);
                                                        if (dir == 'south')
                                                            dir = 'west';
                                                        else
                                                            dir = 'east';
                                                    } else if (dir == 'east' || dir == 'west') {
                                                        geoCell.y = parseFloat(geoCell.x) + 0.0625;
                                                        if (dir == 'east') {
                                                            dir = 'south';

                                                            geoCell.x = 1 + 0.0625;
                                                        } else {
                                                            dir = 'north';
                                                            geoCell.x = 0 - 0.0625;
                                                        }
                                                        cell.setGeometry(geoCell);
                                                    }
                                                }
                                            } else {
                                                var dir = state.style[mxConstants.STYLE_DIRECTION] || 'east';

                                                if (dir == 'east') {
                                                    dir = 'south';
                                                } else if (dir == 'south') {
                                                    dir = 'west';
                                                } else if (dir == 'west') {
                                                    dir = 'north';
                                                } else if (dir == 'north') {
                                                    dir = 'east';
                                                }
                                            }
                                            graph.setCellStyles(mxConstants.STYLE_DIRECTION, dir, [cell]);
                                        }
                                    }
                                }
                            }
                        } finally {
                            graph.getModel().endUpdate();
                        }
                    }
                }, null, null, 'Ctrl+R');


                // @jiteshjha, @pooja
                /*
                   On selection and deletion of any block, 'deleteBlock'
                   function deletes all the associated edges with that block.
                   Used Preorder traversal for edges.
                */
                editor.addAction('deleteBlock', function(editor, cell) {
                    var cells = [];
                    var selectionCells = graph.getSelectionCells();
                    for (var k = 0; k < selectionCells.length; k++) {
                        var portCount = selectionCells[k].getChildCount();
                        cells.push(selectionCells[k]);
                        // Finds all the port with edges of the selected cell, and calls getEdgeId() for
                        // each edge object of that port.
                        for (var i = 0; i < portCount; i++) {
                            var edgeCount = selectionCells[k].getChildAt(i).getEdgeCount();
                            if (edgeCount != 0) {
                                getEdgeId(selectionCells[k].getChildAt(i));

                                for (var j = 0; j < edgeCount; j++) {
                                    var edgeObject = selectionCells[k].getChildAt(i).getEdgeAt(j);
                                    getEdgeId(edgeObject);
                                }
                            }
                        }
                    }


                    /* getEdgeId() find all the associated edges from an edge.
                     Pushes the object of that edge into an array of mxCell objects.
                     */
                    function getEdgeId(edgeObject) {
                        var cellStack = [];
                        if (edgeObject != null && edgeObject.isEdge() == true) {
                            cellStack.push(edgeObject);
                            while (cellStack.length != 0) {
                                var tempEdgeObject = cellStack.pop();
                                if (tempEdgeObject.edge == true && (cells.indexOf(tempEdgeObject) == -1)) {
                                    cells.push(tempEdgeObject);
                                }
                                for (var j = 0; j < tempEdgeObject.getEdgeCount(); j++) {
                                    cellStack.push(tempEdgeObject.getEdgeAt(j));
                                }
                            }
                        }
                    }

                    // The mxCells to be deleted are first highlighted,
                    // and then the selection is deleted in a single go.
                    graph.getSelectionModel().setCells(cells);
                    editor.execute('delete');
                });

                addToolbarButton(editor, toolbar, 'toggle', 'Expand All', 'images/navigate_plus.png');
                toolbar.appendChild(spacer.cloneNode(true));

                addToolbarButton(editor, toolbar, 'cut', 'Cut', 'images/cut.png');
                addToolbarButton(editor, toolbar, 'copy', 'Copy', 'images/copy.png');
                addToolbarButton(editor, toolbar, 'paste', 'Paste', 'images/paste.png');

                toolbar.appendChild(spacer.cloneNode(true));

                addToolbarButton(editor, toolbar, 'undoCustom', '', 'images/undo.png');
                addToolbarButton(editor, toolbar, 'redoCustom', '', 'images/redo.png');
                toolbar.appendChild(spacer.cloneNode(true));

                addToolbarButton(editor, toolbar, 'show', 'Show', 'images/camera.png');
                addToolbarButton(editor, toolbar, 'print', 'Print', 'images/printer.png');

                toolbar.appendChild(spacer.cloneNode(true));


                /*
                    Maverick
                    This method is used for loading the stylesheet from the file.
                    Reference: http://www.w3schools.com/xsl/xsl_client.asp
	        */

                function loadXMLDoc(filename) {
                    if (window.ActiveXObject) {
                        xhttp = new ActiveXObject("Msxml2.XMLHTTP");
                    } else {
                        xhttp = new XMLHttpRequest();
                    }
                    xhttp.open("GET", filename, false);
                    try {
                        xhttp.responseType = "msxml-document"
                    } catch (err) {}
                    xhttp.send("");
                    return xhttp.responseXML;
                }


                /*              
				Maverick
                The Export buttons in toolbar call this function with varying
                arguments. 
                The third argument is used to decide which button is being 
                pressed.
				exportXML : 2 arguments
				exportXcos: 3 arguments
                */
                function displayXMLorXcos() {
                    var textarea = document.createElement('textarea');
                    textarea.style.width = '400px';
                    textarea.style.height = '400px';

                    var enc = new mxCodec(mxUtils.createXmlDocument());
                    var node = enc.encode(arguments[0].graph.getModel());


                    //console.log(mxUtils.getPrettyXml(node));
                    textarea.value = mxUtils.getPrettyXml(node);


                    if (arguments[2] == null) {
                        showModalWindow(graph, 'XML', textarea, 410, 440);
                    } else {
                        xmlFromExportXML = mxUtils.getXml(node);
                        return xmlFromExportXML;
                    }
                }

                // Defines a new export action
                editor.addAction('exportXML', function(editor, cell) {
                    //Only two parameters passed here.
                    displayXMLorXcos(editor, cell);
                });

                /* Maverick
                 Reference: http://www.w3schools.com/xsl/xsl_client.asp
                */

                editor.addAction('exportXcos', function(editor, cell) {
                    //Mind the 3 parameters.
                    var xmlFromExportXML = displayXMLorXcos(editor, cell, true);
                    if (xmlFromExportXML == null) alert('First create the XML file.');
                    else {
                        /* 
                         Maverick
                         Adding <mxGraphModel> tag to make up for the missing tag.
                        */

                        var xml = mxUtils.parseXml("<mxGraphModel>" + xmlFromExportXML + "</mxGraphModel>");

                        var xsl = loadXMLDoc("finalmodsheet.xsl");

                        xsltProcessor = new XSLTProcessor();
                        xsltProcessor.importStylesheet(xsl);
                        resultDocument = xsltProcessor.transformToDocument(xml);


                        var textarea = document.createElement('textarea');
                        textarea.style.width = '400px';
                        textarea.style.height = '400px';
                        /*
                            Maverick
                            Using resultDocument.documentElement to remove an additional tag "<#document>" created by the XSLTProcessor.
                        */
                        textarea.value = mxUtils.getPrettyXml(resultDocument.documentElement);
                        showModalWindow(graph, 'Xcos', textarea, 410, 440);
                    }
                });

                addToolbarButton(editor, toolbar, 'exportXML', 'Export XML', 'images/export1.png');

                addToolbarButton(editor, toolbar, 'exportXcos', 'Export Xcos', 'images/export1.png');

                // Adds toolbar buttons into the status bar at the bottom
                // of the window.

                addToolbarButton(editor, status, 'zoomIn', '', 'images/zoom_in.png', true);
                addToolbarButton(editor, status, 'zoomOut', '', 'images/zoom_out.png', true);
                addToolbarButton(editor, status, 'actualSize', '', 'images/view_1_1.png', true);
                addToolbarButton(editor, status, 'fit', '', 'images/fit_to_size.png', true);

                // Creates the outline (navigator, overview) for moving
                // around the graph in the top, right corner of the window.
                var outln = new mxOutline(graph, outline);

                // To show the images in the outline, uncomment the following code
                //outln.outline.labelsVisible = true;
                //outln.outline.setHtmlLabels(true);

                // Fades-out the splash screen after the UI has been loaded.
                var splash = document.getElementById('splash');
                if (splash != null) {
                    try {
                        mxEvent.release(splash);
                        mxEffects.fadeOut(splash, 100, true);
                    } catch (e) {

                        // mxUtils is not available (library not loaded)
                        splash.parentNode.removeChild(splash);
                    }
                }

                // Handles cursor keys - guides.html
                var nudge = function(keyCode) {
                    if (!graph.isSelectionEmpty()) {
                        var dx = 0;
                        var dy = 0;
                        if (keyCode == 37) {
                            dx = -1;
                        } else if (keyCode == 38) {
                            dy = -1;
                        } else if (keyCode == 39) {
                            dx = 1;
                        } else if (keyCode == 40) {
                            dy = 1;
                        }
                        graph.moveCells(graph.getSelectionCells(), dx, dy);
                    }
                };
                // Transfer initial focus to graph container for keystroke handling
                // graph.container.focus();
                // Handles keystroke events
                var keyHandler = new mxKeyHandler(graph);
                keyHandler.bindKey(37, function() {
                    nudge(37);
                });
                keyHandler.bindKey(38, function() {
                    nudge(38);
                });
                keyHandler.bindKey(39, function() {
                    nudge(39);
                });
                keyHandler.bindKey(40, function() {
                    nudge(40);
                });

                // Starts connections on the background in wire-mode
                var connectionHandlerIsStartEvent = graph.connectionHandler.isStartEvent;
                graph.connectionHandler.isStartEvent = function(me) {
                    return connectionHandlerIsStartEvent.apply(this, arguments);
                };

                // Avoids any connections for gestures within tolerance except when in wire-mode
                // or when over a port
                var connectionHandlerMouseUp = graph.connectionHandler.mouseUp;
                graph.connectionHandler.mouseUp = function(sender, me) {
                    if (this.first != null && this.previous != null) {
                        var point = mxUtils.convertPoint(this.graph.container, me.getX(), me.getY());
                        var dx = Math.abs(point.x - this.first.x);
                        var dy = Math.abs(point.y - this.first.y);

                        if (dx < this.graph.tolerance && dy < this.graph.tolerance) {
                            // Selects edges in non-wire mode for single clicks, but starts
                            // connecting for non-edges regardless of wire-mode
                            if (this.graph.getModel().isEdge(this.previous.cell)) {
                                this.reset();
                            }

                            return;
                        }
                    }

                    connectionHandlerMouseUp.apply(this, arguments);
                };

                mxEvent.disableContextMenu(container);

                // @Adhitya: Add focus to a mxCell
                if (mxClient.IS_NS) {
                    mxEvent.addListener(graph.container, 'mousedown', function(evt) {
                        if (!graph.isEditing()) {
                            graph.container.setAttribute('tabindex', '-1');
                            graph.container.focus();
                        }
                    });
                }

            }
        };


        function showPropertiesWindow(graph, cell) {

            var defaultProperties = {
                nbr_curves: ["Number of curves", 1],
                clrs: ["color (>0) or mark (<0)", [1, 2, 3, 4, 5, 6, 7, 13]],
                siz: ["line or mark size", [1, 1, 1, 1, 1, 1, 1, 1]],
                win: ["Output window number (-1 for automatic)", -1],
                wpos: ["Output window position", [-1, -1]],
                wdim: ["Output window sizes", [-1, -1]],
                vec_x: ["Xmin and Xmax", [-15, 15]],
                vec_y: ["Ymin and Ymax", [-15, 15]],
                vec_z: ["Zmin and Zmax", [-15, 15]],
                param3ds: ["Alpha and Theta", [50, 280]],
                N: ["Buffer size", 2]
            };

            // Create basic structure for the form
            var content = document.createElement('div');
            content.setAttribute("id", "contentProperties");

            // Heading of content
            var heading = document.createElement('h2');
            heading.innerHTML = "Set Scope Parameters";
            heading.id = "headingProperties"
            content.appendChild(heading);

            // Add Form
            var myform = document.createElement("form");
            myform.method = "post";
            myform.id = "formProperties";

            // Line break
            var linebreak = document.createElement('br');
            myform.appendChild(linebreak);

            for (var key in defaultProperties) {
                if (defaultProperties.hasOwnProperty(key)) {

                    // Input Title
                    var fieldName = defaultProperties[key];
                    var namelabel = document.createElement('label');
                    namelabel.innerHTML = defaultProperties[key][0];
                    myform.appendChild(namelabel);

                    // Input
                    var input = document.createElement("input");
                    input.name = key;
                    input.value = defaultProperties[key][1];
                    input.setAttribute("id", key.toString());
                    input.setAttribute("class", "fieldInput");
                    myform.appendChild(input);

                    // Line break
                    var linebreak = document.createElement('br');
                    myform.appendChild(linebreak);

                    // Line break
                    var linebreak = document.createElement('br');
                    myform.appendChild(linebreak);
                }
            }

            // Line break
            var linebreak = document.createElement('br');
            myform.appendChild(linebreak);

            // Button - Submit
            var btn = document.createElement("button");
            btn.innerHTML = 'Submit';
            btn.type = "button";
            btn.name = "submit";

            // Executes when button 'btn' is clicked
            btn.onclick = function() {
                var propertiesObject = {
                    id: cell.id
                };

                for (var key in defaultProperties) {
                    if (defaultProperties.hasOwnProperty(key)) {
                        propertiesObject[key] = document.getElementById(key.toString()).value;
                    }
                }
            };
            myform.appendChild(btn);

            // Button - Reset
            var btn = document.createElement("button");
            btn.innerHTML = 'Reset';
            btn.type = "button";
            btn.name = "submit";
            btn.id = "resetButtonProperties";
            btn.onclick = function() {
                // Reset
                for (var key in defaultProperties) {
                    if (defaultProperties.hasOwnProperty(key)) {
                        var element = document.getElementById(key.toString());
                        element.value = defaultProperties[key][1];
                    }
                }
            };

            myform.appendChild(btn);
            // Base height without fields : 135 px
            height = 135 + 26 * defaultProperties.length + 15;

            content.appendChild(myform);
            showModalWindow(graph, 'Properties', content, 450, height);
        };



        function showColorWheel(graph, cell, selectProperty) {

            // Create basic structure for the form
            var content = document.createElement('div');
            content.setAttribute("id", "colorProperties");

            // Add Form
            var myform = document.createElement("form");
            myform.method = "";
            myform.setAttribute("id", "formProperties");

            // Line break
            var linebreak = document.createElement('br');
            myform.appendChild(linebreak);

            // Input Title
            var fieldName = 'Color';
            var namelabel = document.createElement('label');
            namelabel.innerHTML = fieldName;
            myform.appendChild(namelabel);

            // Input
            var input = document.createElement("input");
            input.name = fieldName;
            input.value = 0;
            input.style.cssText = 'float: right;';
            input.setAttribute("id", "color");
            myform.appendChild(input);

            // Line break
            var linebreak = document.createElement('br');
            myform.appendChild(linebreak);

            // Line break
            var linebreak = document.createElement('br');
            myform.appendChild(linebreak);

            // Line break
            var linebreak = document.createElement('br');
            myform.appendChild(linebreak);
            var picker = document.createElement('div');
            picker.setAttribute("id", "picker");
            myform.appendChild(picker);
            // Line break
            var linebreak = document.createElement('br');
            myform.appendChild(linebreak);

            // Button - Submit
            var btn = document.createElement("button");
            btn.innerHTML = 'Submit';
            btn.type = "button";
            btn.name = "submit";
            btn.style.cssText = 'margin-left: 75px';

            // Executes when button 'btn' is clicked
            btn.onclick = function() {
                var input = document.getElementById('color').value;
                if (selectProperty == "edgeStrokeColor") {
                    var style = graph.getModel().getStyle(cell);
                    if (style == null) {
                        style = 'strokeColor=' + input;
                        graph.getModel().setStyle(cell, style);
                    } else {
                        style = style.replace(/strokeColor=#[a-fA-F0-9]{6,}/g, "strokeColor=" + input);
                        graph.getModel().setStyle(cell, style);
                    }
                } else if (selectProperty == "bgColor") {
                    graph.container.style.backgroundColor = input;
                } else if (selectProperty == "vertexStrokeColor") {
                    var style = graph.getModel().getStyle(cell);
                    if (style.indexOf('strokeColor') > -1) {
                        style = style.replace(/strokeColor=#[a-fA-F0-9]{6,}/g, "strokeColor=" + input);
                        graph.getModel().setStyle(cell, style);
                    } else {
                        style = style + ';' + 'strokeColor=' + input;
                        graph.getModel().setStyle(cell, style);
                    }
                } else if (selectProperty == "vertexFillColor") {
                    var style = graph.getModel().getStyle(cell);
                    if (style.indexOf('fillColor') > -1) {
                        style = style.replace(/fillColor=#[a-fA-F0-9]{6,}/g, "fillColor=" + input);
                        graph.getModel().setStyle(cell, style);
                    } else {
                        style = style + ';' + 'fillColor=' + input;
                        graph.getModel().setStyle(cell, style);
                    }
                }



            };
            myform.appendChild(btn);

            content.appendChild(myform);
            showModalWindow(graph, 'Diagram background...', content, 285, 340);
            // Invokes the farbtastic functionality 
            $(document).ready(function() {
                $('#picker').farbtastic('#color');
            });
        };

        function createButtonImage(button, image) {
            if (image != null) {
                var img = document.createElement('img');
                img.setAttribute('src', image);
                img.style.width = '16px';
                img.style.height = '16px';
                img.style.verticalAlign = 'middle';
                img.style.marginRight = '2px';
                button.appendChild(img);
            }
        }

        function addIcons(graph, sidebar) {
            var req = mxUtils.load('palettes/palettes.xml');
            var root = req.getDocumentElement();
            var x = root.getElementsByTagName('node')[0];
            var categories = x.getElementsByTagName('node');
            for (var i = 0, nodeLength = categories.length; i < nodeLength; i++) {
                var categoryName = categories[i].getAttribute('name');
                var title = document.createElement('h3');
                title.setAttribute('class', 'accordion-header ui-accordion-header ui-helper-reset ui-state-default ui-accordion-icons ui-corner-all');
                var span = document.createElement('span');
                span.setAttribute('class', 'ui-accordion-header-icon ui-icon ui-icon-triangle-1-e');
                var titleName = document.createTextNode(categoryName);
                title.appendChild(span);
                title.appendChild(titleName);
                sidebar.appendChild(title);
                var newImages = document.createElement('div');
                newImages.setAttribute('class', 'ui-accordion-content ui-helper-reset ui-widget-content ui-corner-bottom');
                var blocks = categories[i].getElementsByTagName('block');
                for (var j = 0, blockLength = blocks.length; j < blockLength; j++) {
                    var name = blocks[j].getAttribute('name');
                    var icon = blocks[j].getElementsByTagName('icon')[0];
                    var iconPath = icon.getAttribute('path');
                    addSidebarIcon(graph, newImages, name, iconPath);
                }
                sidebar.appendChild(newImages);
            }
        }

        function getImgHTML(name) {
            return '<img src="' + 'blocks/' + name + '.svg' + '" height="80" width="80">';
        }

        function addToolbarButton(editor, toolbar, action, label, image, isTransparent) {
            var button = document.createElement('button');
            button.style.fontSize = '10';
            createButtonImage(button, image);
            if (isTransparent) {
                button.style.background = 'transparent';
                button.style.color = '#FFFFFF';
                button.style.border = 'none';
            }
            mxEvent.addListener(button, 'click', function(evt) {
                editor.execute(action);
            });
            mxUtils.write(button, label);
            button.setAttribute('id', action);
            toolbar.appendChild(button);
        };

        function showModalWindow(graph, title, content, width, height) {
            var background = document.createElement('div');
            background.style.position = 'absolute';
            background.style.left = '0px';
            background.style.top = '0px';
            background.style.right = '0px';
            background.style.bottom = '0px';
            background.style.background = 'black';
            mxUtils.setOpacity(background, 50);
            document.body.appendChild(background);

            if (mxClient.IS_IE) {
                new mxDivResizer(background);
            }

            var x = Math.max(0, document.body.scrollWidth / 2 - width / 2);
            var y = Math.max(10, (document.body.scrollHeight || document.documentElement.scrollHeight) / 2 - height * 2 / 3);
            var wnd = new mxWindow(title, content, x, y, width, height, false, true);
            wnd.setClosable(true);

            // Fades the background out after after the window has been closed
            wnd.addListener(mxEvent.DESTROY, function(evt) {
                graph.setEnabled(true);
                mxEffects.fadeOut(background, 50, true, 10, 30, true);
            });

            graph.setEnabled(false);
            graph.tooltipHandler.hide();
            wnd.setVisible(true);
        };

        function addSidebarIcon(graph, sidebar, name, image) {

            // Function that is executed when the image is dropped on
            // the graph. The cell argument points to the cell under
            // the mousepointer if there is one.
            var funct = function(graph, evt, cell, x, y) {
                var parent = graph.getDefaultParent();
                var model = graph.getModel();
                var v1 = null;
                var doc = mxUtils.createXmlDocument();
                model.beginUpdate();
                try {
                    var label = getImgHTML(name); // Will not exist for all blocks

                    if (name == 'ANDBLK') {
                        var details = ANDBLK("define");
                        var enc = new mxCodec(mxUtils.createXmlDocument());
                        var node = enc.encode(details);
                        //node.setAttribute('label',label);
                        v1 = graph.insertVertex(parent, null, node, x, y, 80, 80, 'ANDBLK');
                        createPorts(graph, v1, [], ['CONTROL', 'CONTROL'], [], ['COMMAND']);
                    } else if (name == 'CMSCOPE') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'CMSCOPE');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], ['CONTROL'], [], []);
                    } else if (name == 'CONST_m') {
                        var details = CONST_m("define");
                        var enc = new mxCodec(mxUtils.createXmlDocument());
                        var node = enc.encode(details);
                        v1 = graph.insertVertex(parent, null, node, x, y, 80, 80, 'CONST_m');
                        createPorts(graph, v1, [], [], ['EXPLICIT'], []);
                    } else if (name == 'CONVERT') {
                        v1 = graph.insertVertex(parent, null, 'Convert to', x, y, 80, 80, 'CONVERT');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'CSCOPXY') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'CSCOPXY');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], ['CONTROL'], [], []);
                    } else if (name == 'DEMUX') {
                        v1 = graph.insertVertex(parent, null, '', x, y, 80, 80, 'DEMUX');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT', 'EXPLICIT'], []);
                    } else if (name == 'IN_f') {
                        v1 = graph.insertVertex(parent, null, '1', x, y, 80, 80, 'IN_f');
                        createPorts(graph, v1, [], [], ['EXPLICIT'], []);
                    } else if (name == 'LOGICAL_OP') {
                        v1 = graph.insertVertex(parent, null, 'AND', x, y, 80, 80, 'LOGICAL_OP');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'MUX') {
                        v1 = graph.insertVertex(parent, null, '', x, y, 80, 80, 'MUX');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'NRMSOM_f') {
                        v1 = graph.insertVertex(parent, null, '', x, y, 80, 80, 'NRMSOM_f');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'OUT_f') {
                        v1 = graph.insertVertex(parent, null, '1', x, y, 80, 80, 'OUT_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], [], []);
                    } else if (name == 'RELATIONALOP') {
                        v1 = graph.insertVertex(parent, null, '<FONT SIZE="6"><</FONT>', x, y, 80, 80, 'RELATIONALOP');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'SWITCH2_m') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'SWITCH2_m');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT'], []);
                    }

                    // CONTINUOUS
                    else if (name == 'CLINDUMMY_f') {
                        v1 = graph.insertVertex(parent, null, 'DUMMY<BR>CLSS', x, y, 80, 80, 'CLINDUMMY_f');
                        createPorts(graph, v1, [], [], [], []);
                    } else if (name == 'CLR') {
                        v1 = graph.insertVertex(parent, null, '1<BR><HR>1 + s', x, y, 80, 80, 'CLR');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'CLSS') {
                        v1 = graph.insertVertex(parent, null, '<TABLE><TR><TD ALIGN="RIGHT">xd</TD><TD>=</TD><TD>Ax+Bu</TD></TR><TR><TD ALIGN="RIGHT">y</TD><TD>=</TD><TD>Cx+Du</TD></TR></TABLE>', x, y, 130, 80, 'CLSS');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'DERIV') {
                        v1 = graph.insertVertex(parent, null, 'du / dt', x, y, 80, 80, 'DERIV');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'INTEGRAL_f') {
                        v1 = graph.insertVertex(parent, null, '1/s', x, y, 80, 80, 'INTEGRAL_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'INTEGRAL_m') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'INTEGRAL_m');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'PID') {
                        v1 = graph.insertVertex(parent, null, 'PID', x, y, 80, 80, 'PID');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'TCLSS') {
                        v1 = graph.insertVertex(parent, null, 'Jump<BR>(A,B,C,D)', x, y, 80, 80, 'TCLSS');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], ['CONTROL'], ['EXPLICIT'], []);
                    } else if (name == 'TIME_DELAY') {
                        v1 = graph.insertVertex(parent, null, 'Continuous<BR>fix delay', x, y, 80, 80, 'TIME_DELAY');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'VARIABLE_DELAY') {
                        v1 = graph.insertVertex(parent, null, 'Variable<BR>delay', x, y, 80, 80, 'VARIABLE_DELAY');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'PDE') {
                        v1 = graph.insertVertex(parent, null, 'PDE', x, y, 80, 80, 'PDE');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT', 'EXPLICIT', 'EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT', 'EXPLICIT'], []);
                    }

                    // DISCONTINUOUS
                    else if (name == 'BACKLASH') {
                        v1 = graph.insertVertex(parent, null, 'Backlash', x, y, 80, 80, 'BACKLASH');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'DEADBAND') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'DEADBAND');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'DELAYV_f') {
                        v1 = graph.insertVertex(parent, null, 'Variable<BR>delay', x, y, 80, 80, 'DELAYV_f');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], ['CONTROL'], ['EXPLICIT'], ['COMMAND', 'COMMAND']);
                    } else if (name == 'HYSTHERESIS') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'HYSTHERESIS');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'RATELIMITER') {
                        v1 = graph.insertVertex(parent, null, 'Rate limiter', x, y, 80, 80, 'RATELIMITER');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'QUANT_f') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'QUANT_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'SATURATION') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'SATURATION');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    }

                    // DISCRETE
                    else if (name == 'AUTOMAT') {
                        v1 = graph.insertVertex(parent, null, 'Automaton<BR>nM=2, nX=1', x, y, 80, 80, 'AUTOMAT');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT', 'EXPLICIT'], ['COMMAND']);
                    } else if (name == 'DELAY_f') {
                        v1 = graph.insertVertex(parent, null, 'Delay', x, y, 80, 80, 'DELAYV_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'DLR') {
                        v1 = graph.insertVertex(parent, null, '1<BR><HR>1 + z', x, y, 80, 80, 'DLR');
                        createPorts(graph, v1, ['EXPLICIT'], ['CONTROL'], ['EXPLICIT'], []);
                    } else if (name == 'DLRADAPT_f') {
                        v1 = graph.insertVertex(parent, null, 'N(z,p)<BR><HR>D(z,p)', x, y, 80, 80, 'DLRADAPT_f');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], ['CONTROL'], ['EXPLICIT'], []);
                    } else if (name == 'DLSS') {
                        v1 = graph.insertVertex(parent, null, '<TABLE><TR><TD ALIGN="RIGHT">x</TD><TD ALIGN="CENTER">+=</TD><TD>Ax+Bu</TD></TR><TR><TD ALIGN="RIGHT">y</TD><TD ALIGN="CENTER">=</TD><TD>Cx+Du</TD></TR></TABLE>', x, y, 80, 80, 'DLSS');
                        createPorts(graph, v1, ['EXPLICIT'], ['CONTROL'], ['EXPLICIT'], []);
                    } else if (name == 'DOLLAR_f') {
                        v1 = graph.insertVertex(parent, null, '1/z', x, y, 80, 80, 'DOLLAR_f');
                        createPorts(graph, v1, ['EXPLICIT'], ['CONTROL'], ['EXPLICIT'], []);
                    } else if (name == 'DOLLAR') {
                        v1 = graph.insertVertex(parent, null, '1/z', x, y, 80, 80, 'DOLLAR');
                        createPorts(graph, v1, ['EXPLICIT'], ['CONTROL'], ['EXPLICIT'], []);
                    } else if (name == 'DOLLAR_m') {
                        v1 = graph.insertVertex(parent, null, '1/z', x, y, 80, 80, 'DOLLAR_m');
                        createPorts(graph, v1, ['EXPLICIT'], ['CONTROL'], ['EXPLICIT'], []);
                    } else if (name == 'SAMPHOLD_m') {
                        v1 = graph.insertVertex(parent, null, 'S / H', x, y, 80, 80, 'SAMPHOLD_m');
                        createPorts(graph, v1, ['EXPLICIT'], ['CONTROL'], ['EXPLICIT'], []);
                    } else if (name == 'REGISTER') {
                        v1 = graph.insertVertex(parent, null, 'Shift<BR>register', x, y, 80, 80, 'REGISTER');
                        createPorts(graph, v1, ['EXPLICIT'], ['CONTROL'], ['EXPLICIT'], []);
                    }

                    // EVENTS
                    else if (name == 'CLOCK_c') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'CLOCK_c');
                        createPorts(graph, v1, [], [], [], ['COMMAND']);
                    } else if (name == 'SampleCLK') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'SampleCLK');
                        createPorts(graph, v1, [], [], [], ['COMMAND']);
                    } else if (name == 'VirtualCLK0') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'VirtualCLK0');
                        createPorts(graph, v1, [], ['CONTROL'], [], []);
                    }
                    // ANDBLK to come here
                    else if (name == 'ANDLOG_f') {
                        v1 = graph.insertVertex(parent, null, 'LOGICAL<BR>AND', x, y, 80, 80, 'ANDLOG_f');
                        createPorts(graph, v1, [], ['CONTROL', 'CONTROL'], ['EXPLICIT'], []);
                    } else if (name == 'CEVENTSCOPE') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'CEVENTSCOPE');
                        createPorts(graph, v1, [], ['CONTROL'], [], []);
                    } else if (name == 'CLKFROM') {
                        v1 = graph.insertVertex(parent, null, 'A', x, y, 80, 80, 'CLKFROM');
                        createPorts(graph, v1, [], [], [], ['COMMAND']);
                    } else if (name == 'CLKGOTO') {
                        v1 = graph.insertVertex(parent, null, 'A', x, y, 80, 80, 'CLKGOTO');
                        createPorts(graph, v1, [], ['CONTROL'], [], []);
                    } else if (name == 'CLKGotoTagVisibility') {
                        v1 = graph.insertVertex(parent, null, '{A}', x, y, 80, 80, 'CLKGotoTagVisibility');
                        createPorts(graph, v1, [], [], [], []);
                    } else if (name == 'CLKOUTV_f') {
                        v1 = graph.insertVertex(parent, null, '1', x, y, 80, 80, 'CLKOUTV_f');
                        createPorts(graph, v1, [], ['CONTROL'], [], []);
                    } else if (name == 'CLKSOMV_f') {
                        v1 = graph.insertVertex(parent, null, '+', x, y, 80, 80, 'CLKSOMV_f');
                        createPorts(graph, v1, [], ['CONTROL', 'CONTROL', 'CONTROL'], [], ['COMMAND']);
                    } else if (name == 'EDGE_TRIGGER') {
                        v1 = graph.insertVertex(parent, null, 'Edge<BR>trigger', x, y, 80, 80, 'EDGE_TRIGGER');
                        createPorts(graph, v1, ['EXPLICIT'], [], [], ['COMMAND']);
                    } else if (name == 'ENDBLK') {
                        v1 = graph.insertVertex(parent, null, 'END', x, y, 80, 80, 'ENDBLK');
                        createPorts(graph, v1, [], [], [], []);
                    } else if (name == 'END_c') {
                        v1 = graph.insertVertex(parent, null, 'END', x, y, 80, 80, 'END_c');
                        createPorts(graph, v1, [], ['CONTROL'], [], ['COMMAND']);
                    } else if (name == 'ESELECT_f') {
                        v1 = graph.insertVertex(parent, null, 'Event select', x, y, 80, 80, 'ESELECT_f');
                        createPorts(graph, v1, ['EXPLICIT'], ['CONTROL'], [], ['COMMAND', 'COMMAND']);
                    } else if (name == 'EVTDLY_c') {
                        v1 = graph.insertVertex(parent, null, 'Delay: 0.1', x, y, 80, 80, 'EVTDLY_c');
                        createPorts(graph, v1, [], ['CONTROL'], [], ['COMMAND']);
                    } else if (name == 'EVTGEN_f') {
                        v1 = graph.insertVertex(parent, null, 'Event at<BR>time 0', x, y, 80, 80, 'EVTGEN_f');
                        createPorts(graph, v1, [], [], [], ['COMMAND']);
                    } else if (name == 'EVTVARDLY') {
                        v1 = graph.insertVertex(parent, null, 'Event<BR>delay', x, y, 80, 80, 'EVTVARDLY');
                        createPorts(graph, v1, ['EXPLICIT'], ['CONTROL'], [], ['COMMAND']);
                    } else if (name == 'Extract_Activation') {
                        v1 = graph.insertVertex(parent, null, 'Extract<BR>activation', x, y, 80, 80, 'Extract_Activation');
                        createPorts(graph, v1, ['EXPLICIT'], [], [], ['COMMAND']);
                    } else if (name == 'HALT_f') {
                        v1 = graph.insertVertex(parent, null, 'HALT', x, y, 80, 80, 'HALT_f');
                        createPorts(graph, v1, [], ['CONTROL'], [], []);
                    } else if (name == 'IFTHEL_f') {
                        v1 = graph.insertVertex(parent, null, 'if in>0<BR>then else', x, y, 80, 80, 'IFTHEL_f');
                        createPorts(graph, v1, ['EXPLICIT'], ['CONTROL'], [], ['COMMAND', 'COMMAND']);
                    } else if (name == 'M_freq') {
                        v1 = graph.insertVertex(parent, null, 'Multiple<BR>frequency', x, y, 80, 80, 'M_freq');
                        createPorts(graph, v1, [], ['CONTROL'], [], ['COMMAND', 'COMMAND', 'COMMAND']);
                    } else if (name == 'MCLOCK_f') {
                        v1 = graph.insertVertex(parent, null, '2freq clock<BR>f/n f', x, y, 80, 80, 'MCLOCK_f');
                        createPorts(graph, v1, [], [], [], ['COMMAND', 'COMMAND']);
                    } else if (name == 'MFCLCK_f') {
                        v1 = graph.insertVertex(parent, null, 'M. freq<BR>clock', x, y, 80, 80, 'MFCLCK_f');
                        createPorts(graph, v1, [], ['CONTROL'], [], ['COMMAND', 'COMMAND']);
                    } else if (name == 'freq_div') {
                        v1 = graph.insertVertex(parent, null, 'Frequency<BR>division', x, y, 80, 80, 'freq_div');
                        createPorts(graph, v1, [], ['CONTROL'], [], ['COMMAND']);
                    }
                    // LOOKUP TABLES
                    else if (name == 'INTRP2BLK_f') {
                        v1 = graph.insertVertex(parent, null, 'Interp 2', x, y, 80, 80, 'INTRP2BLK_f');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'INTRPLBLK_f') {
                        v1 = graph.insertVertex(parent, null, 'Interp', x, y, 80, 80, 'INTRPLBLK_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'LOOKUP_f') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'LOOKUP_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    }
                    // MATHEMATICAL OPERATIONS
                    else if (name == 'ABS_VALUE') {
                        v1 = graph.insertVertex(parent, null, 'ABS', x, y, 80, 80, 'ABS_VALUE');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'BIGSOM_f') {
                        v1 = graph.insertVertex(parent, null, label, x, y, 80, 80, 'BIGSOM_f');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'COSBLK_f') {
                        v1 = graph.insertVertex(parent, null, 'COS', x, y, 80, 80, 'COSBLK_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'EXPBLK_m') {
                        v1 = graph.insertVertex(parent, null, 'a^u', x, y, 80, 80, 'EXPBLK_m');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'GAINBLK_f') {
                        v1 = graph.insertVertex(parent, null, '1', x, y, 80, 80, 'GAINBLK_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'GAINBLK') {
                        v1 = graph.insertVertex(parent, null, '1', x, y, 80, 80, 'GAINBLK');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'GAIN_f') {
                        v1 = graph.insertVertex(parent, null, '1', x, y, 80, 80, 'GAIN_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'INVBLK') {
                        v1 = graph.insertVertex(parent, null, '1/u', x, y, 80, 80, 'INVBLK');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'LOGBLK_f') {
                        v1 = graph.insertVertex(parent, null, 'LOG', x, y, 80, 80, 'LOGBLK_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'MATMAGPHI') {
                        v1 = graph.insertVertex(parent, null, 'Mag & Phi', x, y, 80, 80, 'MATMAGPHI');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT', 'EXPLICIT'], []);
                    } else if (name == 'MATZREIM') {
                        v1 = graph.insertVertex(parent, null, 'Re & Im', x, y, 80, 80, 'MATZREIM');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT', 'EXPLICIT'], []);
                    } else if (name == 'MAXMIN') {
                        v1 = graph.insertVertex(parent, null, 'MAX', x, y, 80, 80, 'MAXMIN');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'MAX_f') {
                        v1 = graph.insertVertex(parent, null, 'MAX', x, y, 80, 80, 'MAX_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'MIN_f') {
                        v1 = graph.insertVertex(parent, null, 'MIN', x, y, 80, 80, 'MIN_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'POWBLK_f') {
                        v1 = graph.insertVertex(parent, null, 'u^a', x, y, 80, 80, 'POWBLK_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'PRODUCT') {
                        v1 = graph.insertVertex(parent, null, '<TABLE><TR><TD>*</TD><TD ROWSPAN="2"><FONT SIZE="6">∏</FONT><TD></TR><TR><TD>÷</TD><TD/></TR></TABLE>', x, y, 80, 80, 'PRODUCT');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'PROD_f') {
                        v1 = graph.insertVertex(parent, null, 'X', x, y, 80, 80, 'PROD_f');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'SIGNUM') {
                        v1 = graph.insertVertex(parent, null, 'SIGN', x, y, 80, 80, 'SIGNUM');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'SINBLK_f') {
                        v1 = graph.insertVertex(parent, null, 'SIN', x, y, 80, 80, 'SINBLK_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'SQRT') {
                        v1 = graph.insertVertex(parent, null, 'SQRT', x, y, 80, 80, 'SQRT');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'SUMMATION') {
                        v1 = graph.insertVertex(parent, null, '<TABLE><TR><TD>+</TD> <TD ROWSPAN="2"><FONT SIZE="6">∑</FONT><TD></TR><TR><TD>-</TD> <TD/></TR></TABLE>', x, y, 80, 80, 'SUMMATION');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'SUM_f') {
                        v1 = graph.insertVertex(parent, null, '+', x, y, 80, 80, 'SUM_f');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'SOM_f') {
                        v1 = graph.insertVertex(parent, null, '+', x, y, 80, 80, 'SOM_f');
                        createPorts(graph, v1, ['EXPLICIT', 'EXPLICIT', 'EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'TANBLK_f') {
                        v1 = graph.insertVertex(parent, null, 'TAN', x, y, 80, 80, 'TANBLK_f');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    } else if (name == 'TrigFun') {
                        v1 = graph.insertVertex(parent, null, 'Trig function', x, y, 80, 80, 'TrigFun');
                        createPorts(graph, v1, ['EXPLICIT'], [], ['EXPLICIT'], []);
                    }
                    // MATRIX
                    else if (name == 'OpAmp') {
                        v1 = graph.insertVertex(parent, null, '<table><tr><td>+</td><td></td></tr><tr><td></td><td>OP</td></tr><tr><td>-</td><td></td></tr></table>', x, y, 80, 80, 'OpAmp');
                        createPorts(graph, v1, ['IMPLICIT', 'IMPLICIT'], [], ['IMPLICIT'], []);
                    } else if (name == 'TEXT_f') {
                        v1 = graph.insertVertex(parent, null, '', x, y, 80, 80, 'TEXT_f');
                        createPorts(graph, v1, [], [], [], []);
                    }

                    v1.setConnectable(false);

                } finally {
                    model.endUpdate();
                }

                graph.setSelectionCell(v1);
            }

            var para = document.createElement('p');
            var blockFigure = document.createElement('figure');
            var img = document.createElement('img');
            img.setAttribute('src', image);
            var caption = document.createElement('figcaption');
            var blockName = document.createTextNode(name);
            caption.appendChild(blockName);
            blockFigure.appendChild(img);
            blockFigure.appendChild(caption);
            para.appendChild(blockFigure);
            sidebar.appendChild(para);

            var dragElt = document.createElement('div');
            dragElt.style.border = 'dashed black 1px';
            dragElt.style.width = '80px';
            dragElt.style.height = '80px';

            // Creates the image which is used as the drag icon (preview)
            var ds = mxUtils.makeDraggable(img, graph, funct, dragElt, 0, 0, true, true);
            ds.setGuidesEnabled(true);
        };

        // Create ports
        function createPorts(graph, block, left, top, right, bottom) {
            createInputPorts(graph, block, left, top);
            createOutputPorts(graph, block, right, bottom);
        }

        function createInputPorts(graph, block, leftArray, topArray) {
            var topNumber = topArray.length;
            var leftNumber = leftArray.length;
            if (leftNumber != 0) {
                for (var i = 1; i <= leftNumber; i++) {
                    var x = 0;
                    var y = (i / (leftNumber + 1)).toFixed(4);
                    var portType = leftArray[i - 1];
                    createInputPort(graph, block, x, y, portType, 'left');
                }
            }
            if (topNumber != 0) {
                for (var i = 1; i <= topNumber; i++) {
                    var x = (i / (topNumber + 1)).toFixed(4);
                    var y = 0;
                    var portType = topArray[i - 1];
                    createInputPort(graph, block, x, y, portType, 'top');
                }
            }
        };

        function createOutputPorts(graph, block, rightArray, bottomArray) {
            var bottomNumber = bottomArray.length;
            var rightNumber = rightArray.length;
            if (rightNumber != 0) {
                for (var i = 1; i <= rightNumber; i++) {
                    var x = 1;
                    var y = (i / (rightNumber + 1)).toFixed(4);
                    var portType = rightArray[i - 1];
                    createOutputPort(graph, block, x, y, portType, 'right');
                }
            }
            if (bottomNumber != 0) {
                for (var i = 1; i <= bottomNumber; i++) {
                    var x = (i / (bottomNumber + 1)).toFixed(4);
                    var y = 1;
                    var portType = bottomArray[i - 1];
                    createOutputPort(graph, block, x, y, portType, 'bottom');
                }
            }
        };

        function createInputPort(graph, block, x, y, portType, position) {
            var port = null;
            if (portType == 'COMMAND') {
                port = graph.insertVertex(block, null, 'CommandPort', x, y, 10, 10, 'CommandPort', true);
            } else if (portType == 'CONTROL') {
                port = graph.insertVertex(block, null, 'ControlPort', x, y, 10, 10, 'ControlPort', true);
            } else if (portType == 'IMPLICIT') {
                port = graph.insertVertex(block, null, 'ImplicitInputPort', x, y, 10, 10, 'ImplicitInputPort', true);
            } else if (portType == 'EXPLICIT') {
                port = graph.insertVertex(block, null, 'ExplicitInputPort', x, y, 10, 10, 'ExplicitInputPort', true);
            }
            if (port != null) {
                if (position == 'top') {
                    port.geometry.offset = new mxPoint(-6, -10);
                } else if (position == 'left') {
                    port.geometry.offset = new mxPoint(-10, -6);
                }
            }
        };

        function createOutputPort(graph, block, x, y, portType, position) {
            var port = null;
            if (portType == 'COMMAND') {
                port = graph.insertVertex(block, null, 'CommandPort', x, y, 10, 10, 'CommandPort', true);
            } else if (portType == 'CONTROL') {
                port = graph.insertVertex(block, null, 'ControlPort', x, y, 10, 10, 'ControlPort', true);
            } else if (portType == 'IMPLICIT') {
                port = graph.insertVertex(block, null, 'ImplicitOutputPort', x, y, 10, 10, 'ImplicitOutputPort', true);
            } else if (portType == 'EXPLICIT') {
                port = graph.insertVertex(block, null, 'ExplicitOutputPort', x, y, 10, 10, 'ExplicitOutputPort', true);
            }
            if (port != null) {
                if (position == 'bottom') {
                    port.geometry.offset = new mxPoint(-6, 0);
                }
                if (position == 'right') {
                    port.geometry.offset = new mxPoint(0, -6);
                }
            }
        };

        function configureStylesheet(graph) {
            var req = mxUtils.load('styles/Xcos-style.xml');
            var root = req.getDocumentElement();
            var dec = new mxCodec(root.ownerDocument);
            dec.decode(root, graph.stylesheet);
            var style = graph.getStylesheet().getDefaultEdgeStyle();
            style['edgeStyle'] = 'wireEdgeStyle';
        };
    </script>
    <!--
    	Updates connection points before the routing is called.
    -->
    <script type="text/javascript">
        // Computes the position of edge to edge connection points.
        mxGraphView.prototype.updateFixedTerminalPoint = function(edge, terminal, source, constraint) {
            var pt = null;

            if (constraint != null) {
                pt = this.graph.getConnectionPoint(terminal, constraint);
            }

            if (source) {
                edge.sourceSegment = null;
            } else {
                edge.targetSegment = null;
            }

            if (pt == null) {
                var s = this.scale;
                var tr = this.translate;
                var orig = edge.origin;
                var geo = this.graph.getCellGeometry(edge.cell);
                pt = geo.getTerminalPoint(source);

                // Computes edge-to-edge connection point
                if (pt != null) {
                    pt = new mxPoint(s * (tr.x + pt.x + orig.x),
                        s * (tr.y + pt.y + orig.y));

                    // Finds nearest segment on edge and computes intersection
                    if (terminal != null && terminal.absolutePoints != null) {
                        var seg = mxUtils.findNearestSegment(terminal, pt.x, pt.y);

                        // Finds orientation of the segment
                        var p0 = terminal.absolutePoints[seg];
                        var pe = terminal.absolutePoints[seg + 1];
                        var horizontal = (p0.x - pe.x == 0);

                        // Stores the segment in the edge state
                        var key = (source) ? 'sourceConstraint' : 'targetConstraint';
                        var value = (horizontal) ? 'horizontal' : 'vertical';
                        edge.style[key] = value;

                        // Keeps the coordinate within the segment bounds
                        if (horizontal) {
                            pt.x = p0.x;
                            pt.y = Math.min(pt.y, Math.max(p0.y, pe.y));
                            pt.y = Math.max(pt.y, Math.min(p0.y, pe.y));
                        } else {
                            pt.y = p0.y;
                            pt.x = Math.min(pt.x, Math.max(p0.x, pe.x));
                            pt.x = Math.max(pt.x, Math.min(p0.x, pe.x));
                        }
                    }
                }
                // Computes constraint connection points on vertices and ports
                else if (terminal != null && terminal.cell.geometry.relative) {
                    pt = new mxPoint(this.getRoutingCenterX(terminal),
                        this.getRoutingCenterY(terminal));
                }
            }

            edge.setAbsoluteTerminalPoint(pt, source);
        };
    </script>

    <!--
      Overrides methods to preview and create new edges.
    -->
    <script type="text/javascript">
        // Sets source terminal point for edge-to-edge connections.
        mxConnectionHandler.prototype.createEdgeState = function(me) {
            var edge = this.graph.createEdge();

            if (this.sourceConstraint != null && this.previous != null) {
                edge.style = mxConstants.STYLE_EXIT_X + '=' + this.sourceConstraint.point.x + ';' +
                    mxConstants.STYLE_EXIT_Y + '=' + this.sourceConstraint.point.y + ';';
            } else if (this.graph.model.isEdge(me.getCell())) {
                var scale = this.graph.view.scale;
                var tr = this.graph.view.translate;
                var pt = new mxPoint(this.graph.snap(me.getGraphX() / scale) - tr.x,
                    this.graph.snap(me.getGraphY() / scale) - tr.y);
                edge.geometry.setTerminalPoint(pt, true);
            }

            return this.graph.view.createState(edge);
        };

        mxConnectionHandler.prototype.isStopEvent = function(me) {
            return me.getState() != null || mxEvent.isRightMouseButton(me.getEvent());
        };

        // Updates target terminal point for edge-to-edge connections.
        mxConnectionHandlerUpdateCurrentState = mxConnectionHandler.prototype.updateCurrentState;
        mxConnectionHandler.prototype.updateCurrentState = function(me) {
            mxConnectionHandlerUpdateCurrentState.apply(this, arguments);

            if (this.edgeState != null) {
                this.edgeState.cell.geometry.setTerminalPoint(null, false);

                if (this.shape != null && this.currentState != null &&
                    this.currentState.view.graph.model.isEdge(this.currentState.cell)) {
                    var scale = this.graph.view.scale;
                    var tr = this.graph.view.translate;
                    var pt = new mxPoint(this.graph.snap(me.getGraphX() / scale) - tr.x,
                        this.graph.snap(me.getGraphY() / scale) - tr.y);
                    this.edgeState.cell.geometry.setTerminalPoint(pt, false);
                }
            }
        };

        // Updates the terminal and control points in the cloned preview.
        mxEdgeSegmentHandler.prototype.clonePreviewState = function(point, terminal) {
            var clone = mxEdgeHandler.prototype.clonePreviewState.apply(this, arguments);
            clone.cell = clone.cell.clone();

            if (this.isSource || this.isTarget) {
                clone.cell.geometry = clone.cell.geometry.clone();

                // Sets the terminal point of an edge if we're moving one of the endpoints
                if (this.graph.getModel().isEdge(clone.cell)) {
                    clone.cell.geometry.setTerminalPoint(point, this.isSource);
                } else {
                    clone.cell.geometry.setTerminalPoint(null, this.isSource);
                }
            }

            return clone;
        };

        var mxEdgeHandlerConnect = mxEdgeHandler.prototype.connect;
        mxEdgeHandler.prototype.connect = function(edge, terminal, isSource, isClone, me) {
            var result = null;
            var model = this.graph.getModel();
            var parent = model.getParent(edge);

            model.beginUpdate();
            try {
                result = mxEdgeHandlerConnect.apply(this, arguments);
                var geo = model.getGeometry(result);

                if (geo != null) {
                    geo = geo.clone();
                    var pt = null;

                    if (model.isEdge(terminal)) {
                        pt = this.abspoints[(this.isSource) ? 0 : this.abspoints.length - 1];
                        pt.x = pt.x / this.graph.view.scale - this.graph.view.translate.x;
                        pt.y = pt.y / this.graph.view.scale - this.graph.view.translate.y;

                        var pstate = this.graph.getView().getState(
                            this.graph.getModel().getParent(edge));

                        if (pstate != null) {
                            pt.x -= pstate.origin.x;
                            pt.y -= pstate.origin.y;
                        }

                        pt.x -= this.graph.panDx / this.graph.view.scale;
                        pt.y -= this.graph.panDy / this.graph.view.scale;
                    }

                    geo.setTerminalPoint(pt, isSource);
                    model.setGeometry(edge, geo);
                }
            } finally {
                model.endUpdate();
            }

            return result;
        };
    </script>
    <!--
	    Adds in-place highlighting for complete cell area (no hotspot).
    -->
    <script type="text/javascript">
        mxConnectionHandlerCreateMarker = mxConnectionHandler.prototype.createMarker;
        mxConnectionHandler.prototype.createMarker = function() {
            var marker = mxConnectionHandlerCreateMarker.apply(this, arguments);

            // Uses complete area of cell for new connections (no hotspot)
            marker.intersects = function(state, evt) {
                return true;
            };

            return marker;
        };

        mxEdgeHandlerCreateMarker = mxEdgeHandler.prototype.createMarker;
        mxEdgeHandler.prototype.createMarker = function() {
            var marker = mxEdgeHandlerCreateMarker.apply(this, arguments);

            // Adds in-place highlighting when reconnecting existing edges
            marker.highlight.highlight = this.graph.connectionHandler.marker.highlight.highlight;

            return marker;
        }
    </script>
    <!--
	   Implements a custom resistor shape. Direction currently ignored here.
    -->
    <script type="text/javascript">
        mxEdgeStyle.WireConnector = function(state, source, target, hints, result) {
            // Creates array of all way- and terminalpoints
            var pts = state.absolutePoints;
            var horizontal = true;
            var hint = null;

            // Gets the initial connection from the source terminal or edge
            if (source != null && state.view.graph.model.isEdge(source.cell)) {
                horizontal = state.style['sourceConstraint'] == 'horizontal';
            } else if (source != null) {
                horizontal = source.style['portConstraint'] != 'vertical';

                // Checks the direction of the shape and rotates
                var direction = source.style[mxConstants.STYLE_DIRECTION];

                if (direction == 'north' || direction == 'south') {
                    horizontal = !horizontal;
                }
            }

            // Adds the first point
            var pt = pts[0];

            if (pt == null && source != null) {
                pt = new mxPoint(state.view.getRoutingCenterX(source), state.view.getRoutingCenterY(source));
            } else if (pt != null) {
                pt = pt.clone();
            }

            var first = pt;

            // Adds the waypoints
            if (hints != null && hints.length > 0) {
                for (var i = 0; i < hints.length; i++) {
                    horizontal = !horizontal;
                    hint = state.view.transformControlPoint(state, hints[i]);

                    if (horizontal) {
                        if (pt.y != hint.y) {
                            pt.y = hint.y;
                            result.push(pt.clone());
                        }
                    } else if (pt.x != hint.x) {
                        pt.x = hint.x;
                        result.push(pt.clone());
                    }
                }
            } else {
                hint = pt;
            }

            // Adds the last point
            pt = pts[pts.length - 1];

            if (pt == null && target != null) {
                pt = new mxPoint(state.view.getRoutingCenterX(target), state.view.getRoutingCenterY(target));
            }

            if (horizontal) {
                if (pt.y != hint.y && first.x != pt.x) {
                    result.push(new mxPoint(pt.x, hint.y));
                }
            } else if (pt.x != hint.x && first.y != pt.y) {
                result.push(new mxPoint(hint.x, pt.y));
            }
        };

        mxStyleRegistry.putValue('wireEdgeStyle', mxEdgeStyle.WireConnector);

        // This connector needs an mxEdgeSegmentHandler
        mxGraphCreateHandler = mxGraph.prototype.createHandler;
        mxGraph.prototype.createHandler = function(state) {
            var result = null;

            if (state != null) {
                if (this.model.isEdge(state.cell)) {
                    var style = this.view.getEdgeStyle(state);

                    if (style == mxEdgeStyle.WireConnector) {
                        return new mxEdgeSegmentHandler(state);
                    }
                }
            }

            return mxGraphCreateHandler.apply(this, arguments);
        };
    </script>

</head>

<!-- Page passes the container for the graph to the program -->

<body onload="main(document.getElementById('graphContainer'),
			document.getElementById('outlineContainer'),
		 	document.getElementById('toolbarContainer'),
			document.getElementById('sidebarContainer'),
			document.getElementById('statusContainer'));" style="margin:0px;">

    <!-- Creates a container for the splash screen -->
    <div id="splash" style="position:absolute;top:0px;left:0px;width:100%;height:100%;background:white;z-index:1;">
        <center id="splash" style="padding-top:230px;">
            <img src="images/loading.gif">
        </center>
    </div>

    <!-- Creates a container for the sidebar -->
    <div id="toolbarContainer" style="position:absolute;white-space:nowrap;overflow:hidden;top:0px;left:0px;max-height:24px;height:36px;right:0px;padding:6px;background-image:url('images/toolbar_bg.gif');">
    </div>

    <!-- Creates a container for the toolbox -->
    <div id="sidebarContainer" class="ui-accordion ui-widget ui-helper-reset" style="position:absolute;overflow:scroll;top:36px;left:0px;bottom:36px;max-width:266px;width:270px;padding-top:10px;padding-left:4px;">
    </div>

    <!-- Creates a container for the graph -->
    <div id="graphContainer" style="position:absolute;overflow:hidden;top:36px;left:270px;bottom:36px;right:0px;background-image:url('images/grid.gif');cursor:default;">
    </div>

    <!-- Creates a container for the outline -->
    <div id="outlineContainer" style="position:absolute;overflow:hidden;top:36px;right:0px;width:200px;height:140px;background:transparent;border-style:solid;border-color:black;">
    </div>

    <!-- Creates a container for the sidebar -->
    <div id="statusContainer" style="text-align:right;position:absolute;overflow:hidden;bottom:0px;left:0px;max-height:24px;height:36px;right:0px;color:white;padding:6px;background-image:url('images/toolbar_bg.gif');">
        <div style="font-size:10pt;float:left;">
            <a href="http://fossee.in/" target="_tab">FOSSEE</a>
        </div>
    </div>

    <!-- Secret -->
    <p class="accordion-expand-holder" style="display:none">
        <a id='toggleBlocks' class="accordion-expand-all">Expand All</a>
    </p>

</body>
<!-- It's good if this part happens after the entire page has loaded-->
<script type="text/javascript">
    // Preload all images
    var dir = ["blocks", "images"];
    var fileextension = ".";
    var blockImages = [];
    $.each(dir, function(index, value) {
        $.ajax({ // http://stackoverflow.com/a/18480589
            url: value,
            success: function(data) {
                $(data).find("a:contains(" + fileextension + ")").each(function() {
                    var filename = this.href.replace(window.location.host, "");
                    filename = filename.replace("https://", value);
                    filename = filename.replace("http://", value);
                    blockImages.push(filename);
                });
                // Prevent multi-threading and have function within call!
                function preload(sources) {
                    var images = [];
                    for (var i = 0, length = sources.length; i < length; ++i) {
                        images[i] = new Image();
                        images[i].src = sources[i];
                    }
                }
                preload(blockImages);
            }
        });
    });
    //Find out more here: http://stackoverflow.com/questions/12843418/jquery-ui-accordion-expand-collapse-all
    $(window).load(function() {
        var headers = $('#sidebarContainer .accordion-header');
        var contentAreas = $('#sidebarContainer .ui-accordion-content ').hide();
        var expandLink = $('.accordion-expand-all');

        // add the accordion functionality
        headers.click(function() {
            var panel = $(this).next();
            var isOpen = panel.is(':visible');

            // open or close as necessary
            panel[isOpen ? 'slideUp' : 'slideDown']()
                // trigger the correct custom event
                .trigger(isOpen ? 'hide' : 'show');

            // stop the link from causing a pagescroll
            return false;
        });

        // hook up the expand/collapse all
        expandLink.click(function() {
            var isAllOpen = $(this).data('isAllOpen');

            contentAreas[isAllOpen ? 'hide' : 'show']()
                .trigger(isAllOpen ? 'hide' : 'show');
        });

        // when panels open or close, check to see if they're all open
        contentAreas.on({
            // whenever we open a panel, check to see if they're all open
            // if all open, swap the button to collapser
            show: function() {
                var isAllOpen = !contentAreas.is(':hidden');
                if (isAllOpen) {
                    expandLink.text('Collapse All')
                        .data('isAllOpen', true);
                }
            },
            // whenever we close a panel, check to see if they're all open
            // if not all open, swap the button to expander
            hide: function() {
                var isAllOpen = !contentAreas.is(':hidden');
                if (!isAllOpen) {
                    expandLink.text('Expand All')
                        .data('isAllOpen', false);
                }
            }
        });
    });
</script>

</html>
generated by cgit (git 2.34.1) at 2025-03-13 02:00:07 +0000