server/src/main/webapp/static/js/paper-renderer.js
changeset 58 87569ad0ff53
parent 57 01f66ed90e32
child 59 69924ca1b233
--- a/server/src/main/webapp/static/js/paper-renderer.js	Wed Feb 13 13:41:19 2013 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1455 +0,0 @@
-Rkns.Renderer = {
-    _MARGIN_X: 80,
-    _MARGIN_Y: 50,
-    _MIN_DRAG_DISTANCE: 2,
-    _NODE_RADIUS: 25,
-    _NODE_BUTTON_INNER: 26,
-    _NODE_BUTTON_OUTER: 60,
-    _EDGE_BUTTON_INNER: 1,
-    _EDGE_BUTTON_OUTER: 40,
-    _NODE_FONT_SIZE: 10,
-    _EDGE_FONT_SIZE: 9,
-    _NODE_MAX_CHAR: 50,
-    _EDGE_MAX_CHAR: 40,
-    _ARROW_LENGTH: 16,
-    _ARROW_WIDTH: 8,
-    _EDITOR_ARROW_LENGTH : 20,
-    _EDITOR_ARROW_WIDTH : 40,
-    _EDITOR_MARGIN : 15,
-    _EDITOR_PADDING : 10,
-    _EDITOR_GRADIENT : new paper.Gradient(['#f0f0f0', '#d0d0d0']),
-    _CLICKMODE_ADDNODE : 1,
-    _CLICKMODE_STARTEDGE : 2,
-    _CLICKMODE_ENDEDGE : 3,
-    _USER_PLACEHOLDER : {
-        color: "#000000",
-        title: "(unknown user)",
-        get: function(attr) {
-            return this[attr] || false;
-        }
-    }
-}
-
-Rkns.Renderer.Utils = {
-    drawEditBox : function(_coords, _path, _width, _xmargin, _selector) {
-        _selector.css({
-            width: (_width - 2* Rkns.Renderer._EDITOR_PADDING),
-        })
-        var _height = _selector.outerHeight() + 2* Rkns.Renderer._EDITOR_PADDING,
-            _isLeft = (_coords.x < paper.view.center.x ? 1 : -1),
-            _left = _coords.x + _isLeft * ( _xmargin + Rkns.Renderer._EDITOR_ARROW_LENGTH ),
-            _right = _coords.x + _isLeft * ( _xmargin + Rkns.Renderer._EDITOR_ARROW_LENGTH + _width ),
-            _top = _coords.y - _height / 2;
-        if (_top < Rkns.Renderer._EDITOR_MARGIN) {
-            _top = Math.min( Rkns.Renderer._EDITOR_MARGIN, _coords.y - Rkns.Renderer._EDITOR_ARROW_WIDTH / 2 );
-        }
-        var _bottom = _top + _height;
-        if (_bottom > (paper.view.size.height - Rkns.Renderer._EDITOR_MARGIN)) {
-            _bottom = Math.max( paper.view.size.height - Rkns.Renderer._EDITOR_MARGIN, _coords.y + Rkns.Renderer._EDITOR_ARROW_WIDTH / 2 );
-            _top = _bottom - _height;
-        }
-        _path.segments[0].point
-            = _path.segments[7].point
-            = _coords.add([_isLeft * _xmargin, 0]);
-        _path.segments[1].point.x
-            = _path.segments[2].point.x
-            = _path.segments[5].point.x
-            = _path.segments[6].point.x
-            = _left;
-        _path.segments[3].point.x
-            = _path.segments[4].point.x
-            = _right;
-        _path.segments[2].point.y
-            = _path.segments[3].point.y
-            = _top;
-        _path.segments[4].point.y
-            = _path.segments[5].point.y
-            = _bottom;
-        _path.segments[1].point.y = _coords.y - Rkns.Renderer._EDITOR_ARROW_WIDTH / 2;
-        _path.segments[6].point.y = _coords.y + Rkns.Renderer._EDITOR_ARROW_WIDTH / 2;
-        _path.closed = true;
-        _path.fillColor = new paper.GradientColor(Rkns.Renderer._EDITOR_GRADIENT, [0,_top], [0, _bottom]);
-        _selector.css({
-            left: (Rkns.Renderer._EDITOR_PADDING + Math.min(_left, _right)),
-            top: (Rkns.Renderer._EDITOR_PADDING + _top)
-        });
-    },
-    sector : function(_repr, _inR, _outR, _startAngle, _endAngle, _padding, _imgsrc, _caption) {
-        var _startRads = _startAngle * Math.PI / 180,
-            _endRads = _endAngle * Math.PI / 180,
-            _img = new Image(),
-            _span = _endRads - _startRads,
-            _k = .0879 * _span,
-            _kin = _k * _inR,
-            _kout = _k * _outR,
-            _startdx = - Math.sin(_startRads),
-            _startdy = Math.cos(_startRads),
-            _startXIn = Math.cos(_startRads) * _inR + _padding * _startdx,
-            _startYIn = Math.sin(_startRads) * _inR + _padding * _startdy,
-            _startXOut = Math.cos(_startRads) * _outR + _padding * _startdx,
-            _startYOut = Math.sin(_startRads) * _outR + _padding * _startdy,
-            _enddx = - Math.sin(_endRads),
-            _enddy = Math.cos(_endRads),
-            _endXIn = Math.cos(_endRads) * _inR - _padding * _enddx,
-            _endYIn = Math.sin(_endRads) * _inR - _padding * _enddy,
-            _endXOut = Math.cos(_endRads) * _outR - _padding * _enddx,
-            _endYOut = Math.sin(_endRads) * _outR - _padding * _enddy,
-            _centerR = (_inR + _outR)/2,
-            _centerRads = (_startRads + _endRads) / 2,
-            _centerX = Math.cos(_centerRads) * _centerR,
-            _centerY = Math.sin(_centerRads) * _centerR,
-            _textX = Math.cos(_centerRads) * (_outR + 3),
-            _textY = Math.sin(_centerRads) * (_outR + 3),
-            _segments = [];
-        _segments.push([[_startXIn, _startYIn], [0, 0], [ _kin * _startdx, _kin * _startdy ]]);
-        for (var i = 1; i < 4; i++) {
-            var _rads = i * _span / 4 + _startRads,
-                _dx = - Math.sin(_rads),
-                _dy = Math.cos(_rads),
-                _x = Math.cos(_rads) * _inR,
-                _y = Math.sin(_rads) * _inR;
-            _segments.push([[_x, _y], [ - _kin * _dx, - _kin * _dy], [ _kin * _dx, _kin * _dy ]]);
-        }
-        _segments.push([[_endXIn, _endYIn], [ - _kin * _enddx, - _kin * _enddy ], [0,0]]);
-        _segments.push([[_endXOut, _endYOut], [ 0,0 ], [ - _kout * _enddx, - _kout * _enddy ]]);
-        for (var i = 3; i > 0; i--) {
-            var _rads = i * _span / 4 + _startRads,
-                _dx = - Math.sin(_rads),
-                _dy = Math.cos(_rads),
-                _x = Math.cos(_rads) * _outR,
-                _y = Math.sin(_rads) * _outR;
-            _segments.push([[_x, _y], [ _kout * _dx, _kout * _dy], [ - _kout * _dx, - _kout * _dy ]]);
-        }
-        _segments.push([[_startXOut, _startYOut], [ _kout * _startdx, _kout * _startdy ], [0, 0]]);
-        var _path = new paper.Path();
-        _path.add.apply(_path, _segments);
-        _path.fillColor = "#333333";
-        _path.opacity = .5;
-        _path.closed = true;
-        _path.__representation = _repr;
-        if (_textX >= -2 && _textX <= 2) {
-            if (_textY > 0) {
-                _textY += 6;
-            }
-        }
-        var _text = new paper.PointText(_textX,_textY);
-        _text.characterStyle = {
-            fontSize: 9,
-            fillColor: '#c000c0'
-        };
-        if (_textX > 2) {
-            _text.paragraphStyle.justification = 'left';
-        } else if (_textX < -2) {
-            _text.paragraphStyle.justification = 'right';
-        } else {
-            _text.paragraphStyle.justification = 'center';
-        }
-        _text.visible = false;
-        var _visible = false,
-            _restPos = new paper.Point(-200, -200),
-            _grp = new paper.Group([_path, _text]),
-            _delta = _grp.position,
-            _imgdelta = new paper.Point([_centerX, _centerY]),
-            _currentPos = new paper.Point(0,0);
-        _text.content = _caption;
-        _grp.visible = false;
-        _grp.position = _restPos;
-        var _res = {
-            show: function() {
-                _visible = true;
-                _grp.position = _currentPos.add(_delta);
-                _grp.visible = true;
-            },
-            moveTo: function(_point) {
-                _currentPos = _point;
-                if (_visible) {
-                    _grp.position = _point.add(_delta);
-                }
-            },
-            hide: function() {
-                _visible = false;
-                _grp.visible = false;
-                _grp.position = _restPos;
-            },
-            select: function() {
-                _path.opacity = .8;
-                _text.visible = true;
-            },
-            unselect: function() {
-                _path.opacity = .5;
-                _text.visible = false;
-            },
-            destroy: function() {
-                _grp.remove();
-            }
-        }
-        _img.onload = function() {
-            var _h = _img.height;
-            var _raster = new paper.Raster(_img);
-            _raster.position = _imgdelta.add(_grp.position).subtract(_delta);
-            _grp.addChild(_raster);
-        }
-        _img.src = _imgsrc;
-        return _res
-    }
-}
-
-Rkns.Renderer._BaseRepresentation = function(_renderer, _model) {
-    if (typeof _renderer !== "undefined") {
-        this.renderer = _renderer;
-        this.project = _renderer.renkan.project;
-        this.model = _model;
-        if (this.model) {
-            var _this = this;
-            this._changeBinding = function() {
-                _this.redraw();
-            }
-            this._removeBinding = function() {
-                _renderer.removeRepresentation(_this);
-                _renderer.redraw();
-            }
-            this.model.on("change", this._changeBinding );
-            this.model.on("remove", this._removeBinding );
-        }
-    }
-}
-
-Rkns.Renderer._BaseRepresentation.prototype.super = function(_func) {
-    Rkns.Renderer._BaseRepresentation.prototype[_func].apply(this, Array.prototype.slice.call(arguments, 1));
-}
-
-Rkns.Renderer._BaseRepresentation.prototype.select = function() {}
-
-Rkns.Renderer._BaseRepresentation.prototype.unselect = function() {}
-
-Rkns.Renderer._BaseRepresentation.prototype.highlight = function() {}
-
-Rkns.Renderer._BaseRepresentation.prototype.unhighlight = function() {}
-
-Rkns.Renderer._BaseRepresentation.prototype.mouseup = function() {}
-
-Rkns.Renderer._BaseRepresentation.prototype.destroy = function() {
-    if (this.model) {
-        this.model.off("change", this._changeBinding );
-        this.model.off("remove", this._removeBinding );
-    }
-}
-
-Rkns.Renderer.Node = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
-
-Rkns.Renderer.Node.prototype._init = function() {
-    this.renderer.node_layer.activate();
-    this.type = "Node";
-    this.circle = new paper.Path.Circle([0, 0], Rkns.Renderer._NODE_RADIUS);
-    this.circle.fillColor = '#ffffff';
-    this.circle.__representation = this;
-    this.circle.strokeWidth = 2;
-    this.title = new paper.PointText([0,0]);
-    this.title.characterStyle = {
-        fontSize: Rkns.Renderer._NODE_FONT_SIZE,
-        fillColor: 'black'
-    };
-    this.edit_button = new Rkns.Renderer.NodeEditButton(this.renderer, null);
-    this.edit_button.node_representation = this;
-    this.remove_button = new Rkns.Renderer.NodeRemoveButton(this.renderer, null);
-    this.remove_button.node_representation = this;
-    this.link_button = new Rkns.Renderer.NodeLinkButton(this.renderer, null);
-    this.link_button.node_representation = this;
-    this.title.paragraphStyle.justification = 'center';
-}
-
-Rkns.Renderer.Node.prototype.redraw = function() {
-    var _model_coords = new paper.Point(this.model.get("position"));
-    this.paper_coords = this.renderer.toPaperCoords(_model_coords);
-    this.circle.position = this.paper_coords;
-    this.title.content = this.model.get("title");
-    this.title.position = this.paper_coords.add([0, Rkns.Renderer._NODE_RADIUS + 1.5 *Rkns.Renderer._NODE_FONT_SIZE]);
-    this.circle.strokeColor = this.model.get("color") || (this.model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER).get("color");
-    this.edit_button.moveTo(this.paper_coords);
-    this.remove_button.moveTo(this.paper_coords);
-    this.link_button.moveTo(this.paper_coords);
-    var _img = this.model.get("image");
-    if (_img && _img !== this.img) {
-        var _image = new Image(),
-            _this = this;
-        _image.onload = function() {
-            if (_this.node_image) {
-                _this.node_image.remove();
-            }
-            _this.renderer.node_layer.activate();
-            var _ratio = Math.min(1, 2 * Rkns.Renderer._NODE_RADIUS / _image.width, 2 * Rkns.Renderer._NODE_RADIUS / _image.height );
-            var _raster = new paper.Raster(_image);
-            var _clip = new paper.Path.Circle([0, 0], Rkns.Renderer._NODE_RADIUS);
-            _raster.scale(_ratio);
-            _this.node_image = new paper.Group(_clip, _raster);
-            _this.node_image.opacity = .9;
-            /* This is a workaround to allow clipping at group level
-             * If opacity was set to 1, paper.js would merge all clipping groups in one (known bug).
-            */
-            _this.node_image.clipped = true;
-            _this.node_image.position = _this.paper_coords;
-            _this.node_image.__representation = _this;
-            _clip.__representation = _this;
-            paper.view.draw();
-        }
-        _image.src = _img;
-    }
-    this.img = _img;
-    if (this.node_image) {
-        if (!this.img) {
-            this.node_image.remove();
-            delete this.node_image;
-        } else {
-            this.node_image.position = this.paper_coords;
-        }
-    }
-        
-    Rkns._.each(this.project.get("edges").filter(function (ed) { return ((ed.to === this.model) || (ed.from === this.model));}), function(edge, index, list){
-        var repr = this.renderer.getRepresentationByModel(edge);
-    	if(repr != null && typeof repr.from_representation.paper_coords !== "undefined" && typeof repr.to_representation.paper_coords !== "undefined") {
-    		repr.redraw();
-    	}
-    }, this);
-}
-
-Rkns.Renderer.Node.prototype.paperShift = function(_delta) {
-    var _coords = this.renderer.toModelCoords(this.paper_coords.add(_delta)),
-        _data = {
-            position: {
-                x: _coords.x,
-                y: _coords.y
-            }
-        };
-    this.model.set(_data);
-    //this.renderer.redraw();
-}
-
-Rkns.Renderer.Node.prototype.openEditor = function() {
-    this.renderer.removeRepresentationsOfType("editor");
-    var _editor = this.renderer.addRepresentation("NodeEditor",null);
-    _editor.node_representation = this;
-    _editor.draw();
-}
-
-Rkns.Renderer.Node.prototype.select = function() {
-    this.circle.strokeWidth = 4;
-    this.edit_button.show();
-    this.remove_button.show();
-    this.link_button.show();
-    var _uri = this.model.get("uri");
-    Rkns.$('.Rk-Bin-Item').each(function() {
-        var _el = Rkns.$(this);
-        if (_el.attr("data-uri") == _uri) {
-            _el.addClass("selected");
-        }
-    });
-}
-
-Rkns.Renderer.Node.prototype.unselect = function(_newTarget) {
-    if (!_newTarget || _newTarget.node_representation !== this) {
-        this.edit_button.hide();
-        this.remove_button.hide();
-        this.link_button.hide();
-        this.circle.strokeWidth = 2;
-        Rkns.$('.Rk-Bin-Item').removeClass("selected");
-    }
-}
-
-Rkns.Renderer.Node.prototype.highlight = function() {
-    this.circle.fillColor = "#ffff80";
-    if (this.node_image) {
-        this.node_image.opacity = .5;
-    }
-}
-
-Rkns.Renderer.Node.prototype.unhighlight = function(_newTarget) {
-    this.circle.fillColor = "#ffffff";
-    if (this.node_image) {
-        this.node_image.opacity = .9;
-    }
-}
-
-Rkns.Renderer.Node.prototype.mouseup = function(_event) {
-    if (!this.renderer.is_dragging) {
-        this.openEditor();
-    }
-    this.renderer.click_target = null;
-    this.renderer.is_dragging = false;
-}
-
-Rkns.Renderer.Node.prototype.destroy = function(_event) {
-    this.super("destroy");
-    this.edit_button.destroy();
-    this.remove_button.destroy();
-    this.link_button.destroy();
-    this.circle.remove();
-    this.title.remove();
-    if (this.node_image) {
-        this.node_image.remove();
-    }
-}
-
-/* */
-
-Rkns.Renderer.Edge = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
-
-Rkns.Renderer.Edge.prototype._init = function() {
-    this.renderer.edge_layer.activate();
-    this.type = "Edge";
-    this.from_representation = this.renderer.getRepresentationByModel(this.model.get("from"));
-    this.to_representation = this.renderer.getRepresentationByModel(this.model.get("to"));
-    this.bundle = this.renderer.addToBundles(this);
-    this.line = new paper.Path();
-    this.line.add([0,0],[0,0],[0,0]);
-    this.line.__representation = this;
-    this.line.strokeWidth = 2;
-    this.arrow = new paper.Path();
-    this.arrow.add([0,0],[Rkns.Renderer._ARROW_LENGTH,Rkns.Renderer._ARROW_WIDTH / 2],[0,Rkns.Renderer._ARROW_WIDTH]);
-    this.arrow.__representation = this;
-    this.text = new paper.PointText();
-    this.text.characterStyle = {
-        fontSize: Rkns.Renderer._EDGE_FONT_SIZE,
-        fillColor: 'black'
-    };
-    this.text.paragraphStyle.justification = 'center';
-    this.text_angle = 0;
-    this.arrow_angle = 0;
-    this.edit_button = new Rkns.Renderer.EdgeEditButton(this.renderer, null);
-    this.edit_button.edge_representation = this;
-    this.remove_button = new Rkns.Renderer.EdgeRemoveButton(this.renderer, null);
-    this.remove_button.edge_representation = this;
-}
-
-Rkns.Renderer.Edge.prototype.redraw = function() {
-    var _p0a = this.from_representation.paper_coords,
-        _p1a = this.to_representation.paper_coords,
-        _v = _p1a.subtract(_p0a),
-        _r = _v.length,
-        _u = _v.divide(_r),
-        _group_pos = this.bundle.getPosition(this),
-        _delta = new paper.Point([- _u.y, _u.x]).multiply( 12 * _group_pos ),
-        _p0b = _p0a.add(_delta), /* Adding a 4 px difference */
-        _p1b = _p1a.add(_delta), /* to differentiate inbound and outbound links */
-        _a = _v.angle,
-        _handle = _v.divide(3),
-        _color = this.model.get("color") || this.model.get("color") || (this.model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER).get("color");
-    this.paper_coords = _p0b.add(_p1b).divide(2);
-    this.line.strokeColor = _color;
-    this.line.segments[0].point = _p0a;
-    this.line.segments[1].point = this.paper_coords;
-    this.line.segments[1].handleIn = _handle.multiply(-1);
-    this.line.segments[1].handleOut = _handle;
-    this.line.segments[2].point = _p1a;
-    this.arrow.rotate(_a - this.arrow_angle);
-    this.arrow.fillColor = _color;
-    this.arrow.position = this.paper_coords.subtract(_u.multiply(4));
-    this.arrow_angle = _a;
-    if (_a > 90) {
-        _a -= 180;
-    }
-    if (_a < -90) {
-        _a += 180;
-    }
-    this.text.rotate(_a - this.text_angle);
-    this.text.content = this.model.get("title");
-    this.text.position = this.paper_coords;
-    this.text_angle = _a;
-    this.edit_button.moveTo(this.paper_coords);
-    this.remove_button.moveTo(this.paper_coords);
-}
-
-Rkns.Renderer.Edge.prototype.openEditor = function() {
-    this.renderer.removeRepresentationsOfType("editor");
-    var _editor = this.renderer.addRepresentation("EdgeEditor",null);
-    _editor.edge_representation = this;
-    _editor.draw();
-}
-
-Rkns.Renderer.Edge.prototype.select = function() {
-    this.line.strokeWidth = 4;
-    this.edit_button.show();
-    this.remove_button.show();
-}
-
-Rkns.Renderer.Edge.prototype.unselect = function(_newTarget) {
-    if (!_newTarget || _newTarget.edge_representation !== this) {
-        this.edit_button.hide();
-        this.remove_button.hide();
-        this.line.strokeWidth = 2;
-    }
-}
-
-Rkns.Renderer.Edge.prototype.mouseup = function(_event) {
-    if (!this.renderer.is_dragging) {
-        this.openEditor();
-    }
-    this.renderer.click_target = null;
-    this.renderer.is_dragging = false;
-}
-
-Rkns.Renderer.Edge.prototype.paperShift = function(_delta) {
-    this.from_representation.paperShift(_delta);
-    this.to_representation.paperShift(_delta);
-    this.renderer.redraw();
-}
-
-Rkns.Renderer.Edge.prototype.destroy = function() {
-    this.super("destroy");
-    this.line.remove();
-    this.arrow.remove();
-    this.text.remove();
-    this.edit_button.destroy();
-    this.remove_button.destroy();
-    var _this = this;
-    this.bundle.edges = Rkns._(this.bundle.edges).reject(function(_edge) {
-        return _edge === _this;
-    });
-}
-
-/* */
-
-Rkns.Renderer.TempEdge = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
-
-Rkns.Renderer.TempEdge.prototype._init = function() {
-    this.renderer.edge_layer.activate();
-    this.type = "temp-edge";
-    
-    var _color = this.project.get("users").get(this.renderer.renkan.current_user).get("color") || "#000000";
-    this.line = new paper.Path();
-    this.line.strokeColor = _color;
-    this.line.add([0,0],[0,0]);
-    this.line.__representation = this;
-    this.arrow = new paper.Path();
-    this.arrow.fillColor = _color;
-    this.arrow.add([0,0],[Rkns.Renderer._ARROW_LENGTH,Rkns.Renderer._ARROW_WIDTH / 2],[0,Rkns.Renderer._ARROW_WIDTH]);
-    this.arrow.__representation = this;
-    this.arrow_angle = 0;
-}
-
-Rkns.Renderer.TempEdge.prototype.redraw = function() {
-    var _p0 = this.from_representation.paper_coords,
-        _p1 = this.end_pos,
-        _a = _p1.subtract(_p0).angle,
-        _c = _p0.add(_p1).divide(2);
-    this.line.segments[0].point = _p0;
-    this.line.segments[1].point = _p1;
-    this.arrow.rotate(_a - this.arrow_angle);
-    this.arrow.position = _c;
-    this.arrow_angle = _a;
-}
-
-Rkns.Renderer.TempEdge.prototype.paperShift = function(_delta) {
-    this.end_pos = this.end_pos.add(_delta);
-    var _hitResult = paper.project.hitTest(this.end_pos);
-    this.renderer.findTarget(_hitResult);
-    this.redraw();
-}
-
-Rkns.Renderer.TempEdge.prototype.mouseup = function(_event) {
-    var _hitResult = paper.project.hitTest(_event.point),
-        _model = this.from_representation.model,
-        _endDrag = true;
-    if (_hitResult && typeof _hitResult.item.__representation !== "undefined") {
-        var _target = _hitResult.item.__representation;
-        if (_target.type === "Node" && _model !== _target.model) {
-            var _data = {
-                id: Rkns.Utils.getUID('edge'),
-                created_by: this.renderer.renkan.current_user,
-                from: _model.get("_id"),
-                to: _target.model.get("_id")
-            };
-            this.project.addEdge(_data);
-        }
-        if (_model === _target.model || (_target.node_representation && _target.node_representation.model === _model)) {
-            _endDrag = false;
-            this.renderer.is_dragging = true;
-        }
-    }
-    if (_endDrag) {
-        this.renderer.click_target = null;
-        this.renderer.is_dragging = false;
-        this.renderer.removeRepresentation(this);
-        paper.view.draw();
-    }
-}
-
-Rkns.Renderer.TempEdge.prototype.destroy = function() {
-    this.arrow.remove();
-    this.line.remove();
-}
-
-/* */
-
-Rkns.Renderer.NodeEditor = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
-
-Rkns.Renderer.NodeEditor.prototype._init = function() {
-    this.renderer.overlay_layer.activate();
-    this.type = "editor";
-    this.editor_block = new paper.Path();
-    var _pts = Rkns._(Rkns._.range(8)).map(function() {return [0,0]});
-    this.editor_block.add.apply(this.editor_block, _pts);
-    this.editor_block.strokeWidth = 2;
-    this.editor_block.strokeColor = "#999999";
-    this.editor_block.fillColor = "#e0e0e0";
-    this.editor_block.opacity = .8;
-    this.editor_$ = Rkns.$('<div>')
-        .appendTo(this.renderer.editor_$)
-        .css({
-            position: "absolute",
-            opacity: .8
-        })
-        .hide();
-}
-
-Rkns.Renderer.NodeEditor.prototype.template = Rkns._.template(
-    '<h2><span class="Rk-CloseX">&times;</span><%=l10n.edit_node%></span></h2>'
-    + '<p><label><%=l10n.edit_title%></label><input class="Rk-Edit-Title" type="text" value="<%=node.title%>"/></p>'
-    + '<p><label><%=l10n.edit_uri%></label><input class="Rk-Edit-URI" type="text" value="<%=node.uri%>"/><a class="Rk-Edit-Goto" href="<%=node.uri%>" target="_blank"></a></p>'
-    + '<p><label><%=l10n.edit_description%></label><textarea class="Rk-Edit-Description"><%=node.description%></textarea></p>'
-    + '<div class="Rk-Editor-p"><label>Node color</label><div class="Rk-Edit-ColorPicker-Wrapper"><span class="Rk-Edit-Color" style="background:<%=node.color%>;"><span class="Rk-Edit-ColorTip"></span></span><ul class="Rk-Edit-ColorPicker">'
-    + '<% print(Rkns.pickerColors.reduce(function(m,c) { return m + "<li data-color=\'" + c + "\' style=\'background: " + c + "\'></li>"},"")); %></ul><span class="Rk-Edit-ColorPicker-Text">Choose color</span></div></div>'
-    + '<p><label><%=l10n.edit_image%></label><input class="Rk-Edit-Image" type="text" value="<%=node.image%>"/><img class="Rk-Edit-ImgPreview" src="<%=node.image%>" /></p>'
-    + '<p><label><%=l10n.created_by%></label> <span class="Rk-UserColor" style="background:<%=node.created_by_color%>;"></span><%=node.created_by_title%></p>'
-);
-
-Rkns.Renderer.NodeEditor.prototype.draw = function() {
-    var _model = this.node_representation.model,
-        _created_by = _model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER;
-    this.editor_$
-        .html(this.template({
-            node: {
-                title: _model.get("title"),
-                uri: _model.get("uri"),
-                description: _model.get("description"),
-                image: _model.get("image") || "",
-                color: _model.get("color") || _created_by.get("color"),
-                created_by_color: _created_by.get("color"),
-                created_by_title: _created_by.get("title")
-            },
-            l10n: this.renderer.renkan.l10n
-        }));
-    this.redraw();
-    var _this = this;
-    this.editor_$.find(".Rk-CloseX").click(function() {
-        _this.renderer.removeRepresentation(_this);
-        paper.view.draw();
-    });
-    this.editor_$.find("input, textarea").bind("keyup change", function() {
-        var _uri = _this.editor_$.find(".Rk-Edit-URI").val(),
-            _image = _this.editor_$.find(".Rk-Edit-Image").val();
-        _this.editor_$.find(".Rk-Edit-ImgPreview").attr("src", _image);
-        _this.editor_$.find(".Rk-Edit-Goto").attr("href",_uri);
-        var _data = {
-            title: _this.editor_$.find(".Rk-Edit-Title").val(),
-            description: _this.editor_$.find(".Rk-Edit-Description").val(),
-            uri: _uri,
-            image: _image
-        }
-        _model.set(_data);
-        _this.redraw();
-    });
-    this.editor_$.find("img").load(function() {
-        _this.redraw();
-    })
-    this.editor_$.find(".Rk-Edit-Title")[0].focus();
-    this.editor_$.find(".Rk-Edit-ColorPicker-Wrapper").hover(
-        function() { _this.editor_$.find(".Rk-Edit-ColorPicker").show(); },
-        function() { _this.editor_$.find(".Rk-Edit-ColorPicker").hide(); }
-    );
-    this.editor_$.find(".Rk-Edit-ColorPicker li").hover(
-        function() { _this.editor_$.find(".Rk-Edit-Color").css("background", $(this).attr("data-color")); },
-        function() { _this.editor_$.find(".Rk-Edit-Color").css("background", _model.get("color") || (_model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER).get("color")) }
-    ).click(function() {
-        _model.set("color", $(this).attr("data-color"));
-        _this.redraw();
-    });
-}
-
-Rkns.Renderer.NodeEditor.prototype.redraw = function() {
-    var _coords = this.node_representation.paper_coords;
-    Rkns.Renderer.Utils.drawEditBox(_coords, this.editor_block, 250, 20, this.editor_$);
-    this.editor_$.show();
-    paper.view.draw();
-}
-
-Rkns.Renderer.NodeEditor.prototype.destroy = function() {
-    this.editor_block.remove();
-    this.editor_$.detach();
-}
-
-/* */
-
-Rkns.Renderer.EdgeEditor = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
-
-Rkns.Renderer.EdgeEditor.prototype._init = function() {
-    this.renderer.overlay_layer.activate();
-    this.type = "editor";
-    this.editor_block = new paper.Path();
-    var _pts = Rkns._(Rkns._.range(8)).map(function() {return [0,0]});
-    this.editor_block.add.apply(this.editor_block, _pts);
-    this.editor_block.strokeWidth = 2;
-    this.editor_block.strokeColor = "#999999";
-    this.editor_block.fillColor = "#e0e0e0";
-    this.editor_block.opacity = .8;
-    this.editor_$ = Rkns.$('<div>')
-        .appendTo(this.renderer.editor_$)
-        .css({
-            position: "absolute",
-            opacity: .8
-        })
-        .hide();
-}
-
-Rkns.Renderer.EdgeEditor.prototype.template = Rkns._.template(
-    '<h2><span class="Rk-CloseX">&times;</span><%=l10n.edit_edge%></span></h2>'
-    + '<p><label><%=l10n.edit_title%></label><input class="Rk-Edit-Title" type="text" value="<%=edge.title%>"/></p>'
-    + '<p><label><%=l10n.edit_uri%></label><input class="Rk-Edit-URI" type="text" value="<%=edge.uri%>"/><a class="Rk-Edit-Goto" href="<%=edge.uri%>" target="_blank"></a></p>'
-    + '<div class="Rk-Editor-p"><label>Edge color:</label><div class="Rk-Edit-ColorPicker-Wrapper"><span class="Rk-Edit-Color" style="background:<%=edge.color%>;"><span class="Rk-Edit-ColorTip"></span></span><ul class="Rk-Edit-ColorPicker">'
-    + '<% print(Rkns.pickerColors.reduce(function(m,c) { return m + "<li data-color=\'" + c + "\' style=\'background: " + c + "\'></li>"},"")); %></ul><span class="Rk-Edit-ColorPicker-Text">Choose color</span></div></div>'
-    + '<p><label><%=l10n.edit_from%></label><span class="Rk-UserColor" style="background:<%=edge.from_color%>;"></span><%=edge.from_title%></p>'
-    + '<p><label><%=l10n.edit_to%></label><span class="Rk-UserColor" style="background:<%=edge.to_color%>;"></span><%=edge.to_title%></p>'
-    + '<p><label><%=l10n.created_by%> </label><span class="Rk-UserColor" style="background:<%=edge.created_by_color%>;"></span><%=edge.created_by_title%></p>'
-);
-
-Rkns.Renderer.EdgeEditor.prototype.draw = function() {
-    var _model = this.edge_representation.model,
-        _from_model = _model.get("from"),
-        _to_model = _model.get("to"),
-        _created_by = _model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER;
-    this.editor_$
-        .html(this.template({
-            edge: {
-                title: _model.get("title"),
-                uri: _model.get("uri"),
-                description: _model.get("description"),
-                color: _model.get("color") || _created_by.get("color"),
-                from_title: _from_model.get("title"),
-                to_title: _to_model.get("title"),
-                from_color: _from_model.get("color") || (_from_model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER).get("color"),
-                to_color: _to_model.get("color") || (_to_model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER).get("color"),
-                created_by_color: _created_by.get("color"),
-                created_by_title: _created_by.get("title")
-            },
-            l10n: this.renderer.renkan.l10n
-        }));
-    this.redraw();
-    var _this = this;
-    this.editor_$.find(".Rk-CloseX").click(function() {
-        _this.renderer.removeRepresentation(_this);
-        paper.view.draw();
-    });
-    this.editor_$.find("input, textarea").bind("keyup change", function() {
-        _this.editor_$.find(".Rk-Edit-Goto").attr("href",_this.editor_$.find(".Rk-Edit-URI").val());
-        var _data = {
-            title: _this.editor_$.find(".Rk-Edit-Title").val(),
-            uri: _this.editor_$.find(".Rk-Edit-URI").val()
-        }
-        _model.set(_data);
-        _this.redraw();
-    });
-    this.editor_$.find(".Rk-Edit-ColorPicker-Wrapper").hover(
-        function() { _this.editor_$.find(".Rk-Edit-ColorPicker").show(); },
-        function() { _this.editor_$.find(".Rk-Edit-ColorPicker").hide(); }
-    );
-    this.editor_$.find(".Rk-Edit-ColorPicker li").hover(
-        function() { _this.editor_$.find(".Rk-Edit-Color").css("background", $(this).attr("data-color")); },
-        function() { _this.editor_$.find(".Rk-Edit-Color").css("background", _model.get("color") || (_model.get("created_by") || Rkns.Renderer._USER_PLACEHOLDER).get("color")); }
-    ).click(function() {
-        _model.set("color", $(this).attr("data-color"));
-        _this.redraw();
-    });
-}
-Rkns.Renderer.EdgeEditor.prototype.redraw = function() {
-    var _coords = this.edge_representation.paper_coords;
-    Rkns.Renderer.Utils.drawEditBox(_coords, this.editor_block, 250, 5, this.editor_$);
-    this.editor_$.show();
-    paper.view.draw();
-}
-
-Rkns.Renderer.EdgeEditor.prototype.destroy = function() {
-    this.editor_block.remove();
-    this.editor_$.detach();
-}
-
-/* */
-
-Rkns.Renderer.NodeEditButton = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
-
-Rkns.Renderer.NodeEditButton.prototype._init = function() {
-    this.renderer.overlay_layer.activate();
-    this.type = "Node-edit-button";
-    this.sector = Rkns.Renderer.Utils.sector(this, Rkns.Renderer._NODE_BUTTON_INNER, Rkns.Renderer._NODE_BUTTON_OUTER, - 90, 30, 1, this.renderer.renkan.static_url+'img/edit.png', this.renderer.renkan.l10n.caption_edit);
-}
-
-Rkns.Renderer.NodeEditButton.prototype.moveTo = function(_pos) {
-    this.sector.moveTo(_pos);
-}
-
-Rkns.Renderer.NodeEditButton.prototype.show = function() {
-    this.sector.show();
-}
-
-Rkns.Renderer.NodeEditButton.prototype.hide = function() {
-    this.sector.hide();
-}
-
-Rkns.Renderer.NodeEditButton.prototype.select = function() {
-    this.sector.select();
-}
-
-Rkns.Renderer.NodeEditButton.prototype.unselect = function(_newTarget) {
-    this.sector.unselect();
-    if (!_newTarget || (_newTarget !== this.node_representation && _newTarget.node_representation !== this.node_representation)) {
-        this.node_representation.unselect();
-    }
-}
-
-Rkns.Renderer.NodeEditButton.prototype.mouseup = function() {
-    if (!this.renderer.is_dragging) {
-        this.node_representation.openEditor();
-    }
-}
-
-Rkns.Renderer.NodeEditButton.prototype.destroy = function() {
-    this.sector.destroy();
-}
-
-/* */
-
-Rkns.Renderer.NodeRemoveButton = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
-
-Rkns.Renderer.NodeRemoveButton.prototype._init = function() {
-    this.renderer.overlay_layer.activate();
-    this.type = "Node-remove-button";
-    this.sector = Rkns.Renderer.Utils.sector(this, Rkns.Renderer._NODE_BUTTON_INNER, Rkns.Renderer._NODE_BUTTON_OUTER, -210, -90, 1, this.renderer.renkan.static_url+'img/remove.png', this.renderer.renkan.l10n.caption_remove);
-}
-
-Rkns.Renderer.NodeRemoveButton.prototype.moveTo = function(_pos) {
-    this.sector.moveTo(_pos);
-}
-
-Rkns.Renderer.NodeRemoveButton.prototype.show = function() {
-    this.sector.show();
-}
-
-Rkns.Renderer.NodeRemoveButton.prototype.hide = function() {
-    this.sector.hide();
-}
-
-Rkns.Renderer.NodeRemoveButton.prototype.select = function() {
-    this.sector.select();
-}
-
-Rkns.Renderer.NodeRemoveButton.prototype.unselect = function(_newTarget) {
-    this.sector.unselect();
-    if (!_newTarget || (_newTarget !== this.node_representation && _newTarget.node_representation !== this.node_representation)) {
-        this.node_representation.unselect();
-    }
-}
-
-Rkns.Renderer.NodeRemoveButton.prototype.mouseup = function() {
-    this.renderer.removeRepresentationsOfType("editor");
-    if (confirm('Do you really wish to remove node "' + this.node_representation.model.get("title") + '"?')) {
-        this.project.removeNode(this.node_representation.model);
-    }
-}
-
-Rkns.Renderer.NodeRemoveButton.prototype.destroy = function() {
-    this.sector.destroy();
-}
-
-/* */
-
-Rkns.Renderer.NodeLinkButton = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
-
-Rkns.Renderer.NodeLinkButton.prototype._init = function() {
-    this.renderer.overlay_layer.activate();
-    this.type = "Node-link-button";
-    this.sector = Rkns.Renderer.Utils.sector(this, Rkns.Renderer._NODE_BUTTON_INNER, Rkns.Renderer._NODE_BUTTON_OUTER, 30, 150, 1, this.renderer.renkan.static_url+'img/link.png', this.renderer.renkan.l10n.caption_link);
-}
-
-Rkns.Renderer.NodeLinkButton.prototype.moveTo = function(_pos) {
-    this.sector.moveTo(_pos);
-}
-
-Rkns.Renderer.NodeLinkButton.prototype.show = function() {
-    this.sector.show();
-}
-
-Rkns.Renderer.NodeLinkButton.prototype.hide = function() {
-    this.sector.hide();
-}
-
-Rkns.Renderer.NodeLinkButton.prototype.select = function() {
-    this.sector.select();
-}
-
-Rkns.Renderer.NodeLinkButton.prototype.unselect = function(_newTarget) {
-    this.sector.unselect();
-    if (!_newTarget || (_newTarget !== this.node_representation && _newTarget.node_representation !== this.node_representation)) {
-        this.node_representation.unselect();
-    }
-}
-
-Rkns.Renderer.NodeLinkButton.prototype.destroy = function() {
-    this.sector.destroy();
-}
-
-/* */
-
-Rkns.Renderer.EdgeEditButton = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
-
-Rkns.Renderer.EdgeEditButton.prototype._init = function() {
-    this.renderer.overlay_layer.activate();
-    this.type = "Edge-edit-button";
-    this.sector = Rkns.Renderer.Utils.sector(this, Rkns.Renderer._EDGE_BUTTON_INNER, Rkns.Renderer._EDGE_BUTTON_OUTER, - 90, 90, 1, this.renderer.renkan.static_url+'img/edit.png', this.renderer.renkan.l10n.caption_edit);
-}
-
-Rkns.Renderer.EdgeEditButton.prototype.moveTo = function(_pos) {
-    this.sector.moveTo(_pos);
-}
-
-Rkns.Renderer.EdgeEditButton.prototype.show = function() {
-    this.sector.show();
-}
-
-Rkns.Renderer.EdgeEditButton.prototype.hide = function() {
-    this.sector.hide();
-}
-
-Rkns.Renderer.EdgeEditButton.prototype.select = function() {
-    this.sector.select();
-}
-
-Rkns.Renderer.EdgeEditButton.prototype.unselect = function(_newTarget) {
-    this.sector.unselect();
-    if (!_newTarget || (_newTarget !== this.edge_representation && _newTarget.edge_representation !== this.edge_representation)) {
-        this.edge_representation.unselect();
-    }
-}
-
-Rkns.Renderer.EdgeEditButton.prototype.mouseup = function() {
-    if (!this.renderer.is_dragging) {
-        this.edge_representation.openEditor();
-    }
-}
-
-Rkns.Renderer.EdgeEditButton.prototype.destroy = function() {
-    this.sector.destroy();
-}
-
-/* */
-
-Rkns.Renderer.EdgeRemoveButton = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
-
-Rkns.Renderer.EdgeRemoveButton.prototype._init = function() {
-    this.renderer.overlay_layer.activate();
-    this.type = "Edge-remove-button";
-    this.sector = Rkns.Renderer.Utils.sector(this, Rkns.Renderer._EDGE_BUTTON_INNER, Rkns.Renderer._EDGE_BUTTON_OUTER, - 270, -90, 1, this.renderer.renkan.static_url+'img/remove.png', this.renderer.renkan.l10n.caption_remove);
-}
-Rkns.Renderer.EdgeRemoveButton.prototype.moveTo = function(_pos) {
-    this.sector.moveTo(_pos);
-}
-
-Rkns.Renderer.EdgeRemoveButton.prototype.show = function() {
-    this.sector.show();
-}
-
-Rkns.Renderer.EdgeRemoveButton.prototype.hide = function() {
-    this.sector.hide();
-}
-
-Rkns.Renderer.EdgeRemoveButton.prototype.select = function() {
-    this.sector.select();
-}
-
-Rkns.Renderer.EdgeRemoveButton.prototype.unselect = function(_newTarget) {
-    this.sector.unselect();
-    if (!_newTarget || (_newTarget !== this.edge_representation && _newTarget.edge_representation !== this.edge_representation)) {
-        this.edge_representation.unselect();
-    }
-}
-
-Rkns.Renderer.EdgeRemoveButton.prototype.mouseup = function() {
-    this.renderer.removeRepresentationsOfType("editor");
-    if (confirm('Do you really wish to remove edge "' + this.edge_representation.model.get("title") + '"?')) {
-        this.project.removeEdge(this.edge_representation.model);
-    }
-}
-
-Rkns.Renderer.EdgeRemoveButton.prototype.destroy = function() {
-    this.sector.destroy();
-}
-
-/* */
-
-Rkns.Renderer.Scene = function(_renkan) {
-    this.renkan = _renkan;
-    this.$ = Rkns.$(".Rk-Render");
-    this.representations = [];
-    this.$.html(this.template(_renkan));
-    this.canvas_$ = this.$.find(".Rk-Canvas");
-    this.editor_$ = this.$.find(".Rk-Editor");
-    this.notif_$ = this.$.find(".Rk-Notifications");
-    paper.setup(this.canvas_$[0]);
-    this.scale = 1;
-    this.offset = paper.view.center;
-    this.totalScroll = 0;
-    this.click_target = null;
-    this.selected_target = null;
-    this.edge_layer = new paper.Layer();
-    this.node_layer = new paper.Layer();
-    this.overlay_layer = new paper.Layer();
-    this.bundles = [];
-    this.click_mode = false;
-    var _tool = new paper.Tool(),
-        _this = this;
-    _tool.minDistance = Rkns.Renderer._MIN_DRAG_DISTANCE;
-    _tool.onMouseMove = function(_event) {
-        _this.onMouseMove(_event);
-    }
-    _tool.onMouseDown = function(_event) {
-        _this.onMouseDown(_event);
-    }
-    _tool.onMouseDrag = function(_event) {
-        _this.onMouseDrag(_event);
-    }
-    this.canvas_$.mouseup(function(_event) {
-        _this.onMouseUp(_event);
-    });
-    this.canvas_$.mousewheel(function(_event, _delta) {
-        _this.onScroll(_event, _delta);
-    });
-    this.canvas_$.dblclick(function(_event) {
-        _this.onDoubleClick(_event);
-    });
-    this.canvas_$.mouseenter(function(_event) {
-        _this.onMouseEnter(_event);
-    });
-    this.editor_$.find(".Rk-ZoomOut").click(function() {
-        _this.offset = new paper.Point([
-            _this.canvas_$.width(),
-            _this.canvas_$.height()
-        ]).multiply( .5 * ( 1 - Math.SQRT1_2 ) ).add(_this.offset.multiply( Math.SQRT1_2 ));
-        _this.setScale( _this.scale * Math.SQRT1_2 );
-        _this.redraw();
-    });
-    this.editor_$.find(".Rk-ZoomIn").click(function() {
-        _this.offset = new paper.Point([
-            _this.canvas_$.width(),
-            _this.canvas_$.height()
-        ]).multiply( .5 * ( 1 - Math.SQRT2 ) ).add(_this.offset.multiply( Math.SQRT2 ));
-        _this.setScale( _this.scale * Math.SQRT2 );
-        _this.redraw();
-    });
-    this.$.find(".Rk-CurrentUser").mouseenter(
-        function() { _this.$.find(".Rk-UserList").slideDown() }
-    );
-    this.$.find(".Rk-Users").mouseleave(
-        function() { _this.$.find(".Rk-UserList").slideUp(); }
-    );
-    this.$.find(".Rk-FullScreen-Button").click(function() {
-        var _isFull = document.fullScreen || document.mozFullScreen || document.webkitIsFullScreen,
-            _el = _this.renkan.$[0],
-            _requestMethods = ["requestFullScreen","mozRequestFullScreen","webkitRequestFullScreen"],
-            _cancelMethods = ["cancelFullScreen","mozCancelFullScreen","webkitCancelFullScreen"];
-        if (_isFull) {
-            for (var i = 0; i < _cancelMethods.length; i++) {
-                if (typeof document[_cancelMethods[i]] === "function") {
-                    document[_cancelMethods[i]]();
-                    break;
-                }
-            }
-        } else {
-            for (var i = 0; i < _requestMethods.length; i++) {
-                if (typeof _el[_requestMethods[i]] === "function") {
-                    _el[_requestMethods[i]]();
-                    break;
-                }
-            }
-        }
-    });
-    this.$.find(".Rk-AddNode-Button").click(function() {
-        if (_this.click_mode === Rkns.Renderer._CLICKMODE_ADDNODE) {
-            _this.click_mode = false;
-            _this.notif_$.hide();
-        } else {
-            _this.click_mode = Rkns.Renderer._CLICKMODE_ADDNODE;
-            _this.notif_$.html(_renkan.l10n.notif_add_node).fadeIn();
-        }
-    });
-    this.$.find(".Rk-AddEdge-Button").click(function() {
-        if (_this.click_mode === Rkns.Renderer._CLICKMODE_STARTEDGE || _this.click_mode === Rkns.Renderer._CLICKMODE_ENDEDGE) {
-            _this.click_mode = false;
-            _this.notif_$.hide();
-        } else {
-            _this.click_mode = Rkns.Renderer._CLICKMODE_STARTEDGE;
-            _this.notif_$.html(_renkan.l10n.notif_start_edge).fadeIn();
-        }
-    });
-    this.$.find(".Rk-TopBar-Button").mouseover(function() {
-        Rkns.$(this).find(".Rk-TopBar-Tooltip").show();
-    }).mouseout(function() {
-        Rkns.$(this).find(".Rk-TopBar-Tooltip").hide();
-    });
-    
-    paper.view.onResize = function(_event) {
-        _this.offset = _this.offset.add(_event.delta.divide(2));
-        _this.redraw();
-    }
-    
-    var _thRedraw = Rkns._.throttle(function() {
-        _this.redraw();
-    },50);
-    
-    this.addRepresentations("Node", this.renkan.project.get("nodes"));
-    this.addRepresentations("Edge", this.renkan.project.get("edges"));
-    this.renkan.project.on("change:title", function() {
-        _this.$.find(".Rk-PadTitle").val(_renkan.project.get("title"));
-    });
-    
-    this.$.find(".Rk-PadTitle").on("keyup input paste", function() {
-        _renkan.project.set({"title": $(this).val()});
-    })
-    
-    this.renkan.project.get("users").each(function(_user) {
-        _this.addUser(_user);
-    });
-    
-    this.renkan.project.on("add:users", function(_user) {
-        _this.addUser(_user);
-    });
-    this.renkan.project.on("add:nodes", function(_node) {
-        _this.addRepresentation("Node", _node);
-        _thRedraw();
-    });
-    this.renkan.project.on("add:edges", function(_edge) {
-        _this.addRepresentation("Edge", _edge);
-        _thRedraw();
-    });
-    
-    this.redraw();
-}
-
-Rkns.Renderer.Scene.prototype.template = Rkns._.template(
-    '<div class="Rk-TopBar"><input type="text" class="Rk-PadTitle" value="<%- project.get("title") || "" %>" placeholder="<%=l10n.untitled_project%>" />'
-    + '<div class="Rk-Users"><div class="Rk-CurrentUser"><span class="Rk-CurrentUser-Color"></span><span class="Rk-CurrentUser-Name">&lt;unknown user&gt;</span></div><ul class="Rk-UserList"></ul></div>'
-    + '<div class="Rk-TopBar-Separator"></div><div class="Rk-TopBar-Button Rk-FullScreen-Button"><div class="Rk-TopBar-Tooltip"><div class="Rk-TopBar-Tooltip-Tip"></div><div class="Rk-TopBar-Tooltip-Contents"><%=l10n.full_screen%></div></div></div>'
-    + '<div class="Rk-TopBar-Separator"></div><div class="Rk-TopBar-Button Rk-AddNode-Button"><div class="Rk-TopBar-Tooltip"><div class="Rk-TopBar-Tooltip-Tip"></div><div class="Rk-TopBar-Tooltip-Contents"><%=l10n.add_node%></div></div></div>'
-    + '<div class="Rk-TopBar-Separator"></div><div class="Rk-TopBar-Button Rk-AddEdge-Button"><div class="Rk-TopBar-Tooltip"><div class="Rk-TopBar-Tooltip-Tip"></div><div class="Rk-TopBar-Tooltip-Contents"><%=l10n.add_edge%></div></div></div>'
-    + '<div class="Rk-TopBar-Separator"></div><div class="Rk-TopBar-Button Rk-Save-Button"><div class="Rk-TopBar-Tooltip"><div class="Rk-TopBar-Tooltip-Tip"></div><div class="Rk-TopBar-Tooltip-Contents"><%=l10n.save_project%></div></div></div>'
-    + '<div class="Rk-TopBar-Separator"></div></div>'
-    + '<canvas class="Rk-Canvas" resize></canvas><div class="Rk-Editor"><div class="Rk-Notifications"></div>'
-    + '<div class="Rk-ZoomButtons"><div class="Rk-ZoomIn" title="<%=l10n.zoom_in%>"></div><div class="Rk-ZoomOut" title="<%=l10n.zoom_out%>"></div></div>'
-    + '</div>'
-);
-
-Rkns.Renderer.Scene.prototype.addToBundles = function(_edgeRepr) {
-    var _bundle = Rkns._(this.bundles).find(function(_bundle) {
-        return ( 
-            ( _bundle.from === _edgeRepr.from_representation && _bundle.to === _edgeRepr.to_representation )
-            || ( _bundle.from === _edgeRepr.to_representation && _bundle.to === _edgeRepr.from_representation )
-        );
-    });
-    if (typeof _bundle !== "undefined") {
-        _bundle.edges.push(_edgeRepr)
-    } else {
-        _bundle = {
-            from: _edgeRepr.from_representation,
-            to: _edgeRepr.to_representation,
-            edges: [ _edgeRepr ],
-            getPosition: function(_er) {
-                var _dir = (_er.from_representation === this.from) ? 1 : -1;
-                return _dir * ( Rkns._(this.edges).indexOf(_er) - (this.edges.length - 1) / 2 );
-            }
-        }
-        this.bundles.push(_bundle);
-    }
-    return _bundle;
-}
-
-Rkns.Renderer.Scene.prototype.setScale = function(_newScale) {
-    this.scale = _newScale;
-    this.redraw();
-}
-
-Rkns.Renderer.Scene.prototype.autoScale = function() {
-    var nodes = this.renkan.project.get("nodes")
-    if (nodes.length > 1) {
-        var _xx = nodes.map(function(_node) { return _node.get("position").x }),
-            _yy = nodes.map(function(_node) { return _node.get("position").y }),
-            _minx = Math.min.apply(Math, _xx),
-            _miny = Math.min.apply(Math, _yy),
-            _maxx = Math.max.apply(Math, _xx),
-            _maxy = Math.max.apply(Math, _yy);
-        var _scale = Math.min((paper.view.size.width - 2 * Rkns.Renderer._MARGIN_X) / (_maxx - _minx), (paper.view.size.height - 2 * Rkns.Renderer._MARGIN_Y) / (_maxy - _miny));
-        this.offset = paper.view.center.subtract(new paper.Point([(_maxx + _minx) / 2, (_maxy + _miny) / 2]).multiply(_scale));
-        this.setScale(_scale);
-    }
-    if (nodes.length === 1) {
-        this.offset = paper.view.center.subtract(new paper.Point([nodes.at(0).get("position").x, nodes.at(0).get("position").y]));
-        this.setScale(1);
-    }
-}
-
-Rkns.Renderer.Scene.prototype.toPaperCoords = function(_point) {
-    return _point.multiply(this.scale).add(this.offset);
-}
-
-
-Rkns.Renderer.Scene.prototype.toModelCoords = function(_point) {
-    return _point.subtract(this.offset).divide(this.scale);
-}
-
-Rkns.Renderer.Scene.prototype.addRepresentation = function(_type, _model) {
-    var _repr = new Rkns.Renderer[_type](this, _model);
-    this.representations.push(_repr);
-    return _repr;
-}
-
-Rkns.Renderer.Scene.prototype.addRepresentations = function(_type, _collection) {
-    var _this = this;
-    _collection.forEach(function(_model) {
-        _this.addRepresentation(_type, _model);
-    });
-}
-
-Rkns.Renderer.Scene.prototype.userTemplate = Rkns._.template(
-    '<li class="Rk-User"><span class="Rk-UserColor" style="background:<%=background%>;"></span><%=name%></li>'
-);
-
-Rkns.Renderer.Scene.prototype.addUser = function(_user) {
-    if (_user.get("_id") === this.renkan.current_user) {
-        this.$.find(".Rk-CurrentUser-Name").text(_user.get("title"));
-        this.$.find(".Rk-CurrentUser-Color").css("background", _user.get("color"));
-    } else {
-        this.$.find(".Rk-UserList").append(
-            Rkns.$(
-                this.userTemplate({
-                    name: _user.get("title"),
-                    background: _user.get("color")
-                })
-            )
-        );
-    }
-}
-
-Rkns.Renderer.Scene.prototype.removeRepresentation = function(_representation) {
-    _representation.destroy();
-    this.representations = Rkns._(this.representations).reject(
-        function(_repr) {
-            return _repr == _representation
-        }
-    );
-}
-
-Rkns.Renderer.Scene.prototype.getRepresentationByModel = function(_model) {
-    return Rkns._(this.representations).find(function(_repr) {
-        return _repr.model === _model;
-    });
-}
-
-Rkns.Renderer.Scene.prototype.removeRepresentationsOfType = function(_type) {
-    var _representations = Rkns._(this.representations).filter(function(_repr) {
-            return _repr.type == _type;
-        }),
-        _this = this;
-    Rkns._(_representations).each(function(_repr) {
-        _this.removeRepresentation(_repr);
-    });
-}
-
-Rkns.Renderer.Scene.prototype.highlightModel = function(_model) {
-    var _repr = this.getRepresentationByModel(_model);
-    if (_repr) {
-        _repr.highlight();
-    }
-}
-
-Rkns.Renderer.Scene.prototype.unhighlightAll = function(_model) {
-    Rkns._(this.representations).each(function(_repr) {
-        _repr.unhighlight();
-    });
-}
-
-Rkns.Renderer.Scene.prototype.redraw = function() {
-    Rkns._(this.representations).each(function(_representation) {
-        _representation.redraw();
-    });
-    paper.view.draw();
-}
-
-Rkns.Renderer.Scene.prototype.addTempEdge = function(_from, _point) {
-    var _tmpEdge = this.addRepresentation("TempEdge",null);
-    _tmpEdge.end_pos = _point;
-    _tmpEdge.from_representation = _from;
-    _tmpEdge.redraw();
-    this.click_target = _tmpEdge;
-}
-
-Rkns.Renderer.Scene.prototype.findTarget = function(_hitResult) {
-    if (_hitResult && typeof _hitResult.item.__representation !== "undefined") {
-        var _newTarget = _hitResult.item.__representation;
-        if (this.selected_target !== _hitResult.item.__representation) {
-            if (this.selected_target) {
-                this.selected_target.unselect(_newTarget);
-            }
-            _newTarget.select(this.selected_target);
-            this.selected_target = _newTarget;
-        }
-    } else {
-        if (this.selected_target) {
-            this.selected_target.unselect(null);
-        }
-        this.selected_target = null;
-    }
-}
-
-Rkns.Renderer.Scene.prototype.onMouseMove = function(_event) {
-    var _hitResult = paper.project.hitTest(_event.point);
-    if (this.is_dragging) {
-        if (this.click_target && typeof this.click_target.paperShift === "function") {
-            this.click_target.paperShift(_event.delta);
-        } else {
-            this.offset = this.offset.add(_event.delta);
-            this.redraw();
-        }
-    } else {
-        this.findTarget(_hitResult);
-    }
-}
-
-Rkns.Renderer.Scene.prototype.onMouseDown = function(_event) {
-    if (!this.click_target || this.click_target.type !== "temp-edge") {
-        this.is_dragging = false;
-        var _hitResult = paper.project.hitTest(_event.point);
-        if (_hitResult && typeof _hitResult.item.__representation !== "undefined") {
-            this.click_target = _hitResult.item.__representation;
-            if (this.click_target.type === "Node-link-button") {
-                this.removeRepresentationsOfType("editor");
-                this.addTempEdge(this.click_target.node_representation, _event.point);
-            }
-        } else {
-            this.click_target = null;
-            if (this.click_mode === Rkns.Renderer._CLICKMODE_ADDNODE) {
-                var _coords = this.toModelCoords(_event.point),
-                    _data = {
-                        id: Rkns.Utils.getUID('node'),
-                        created_by: this.renkan.current_user,
-                        position: {
-                            x: _coords.x,
-                            y: _coords.y
-                        }
-                    };
-                    _node = this.renkan.project.addNode(_data);
-                this.getRepresentationByModel(_node).openEditor();
-            }
-        }
-    }
-    if (this.click_mode) {
-        if (this.click_mode === Rkns.Renderer._CLICKMODE_STARTEDGE && this.click_target && this.click_target.type === "Node") {
-            this.removeRepresentationsOfType("editor");
-            this.addTempEdge(this.click_target, _event.point);
-            this.click_mode = Rkns.Renderer._CLICKMODE_ENDEDGE;
-            this.notif_$.fadeOut(function() {
-                Rkns.$(this).html(_renkan.l10n.notif_end_edge).fadeIn();
-            });
-        } else {
-            this.notif_$.hide();
-            this.click_mode = false;
-        }
-    }
-}
-
-Rkns.Renderer.Scene.prototype.onMouseDrag = function(_event) {
-    this.is_dragging = true;
-    this.onMouseMove(_event);
-}
-
-Rkns.Renderer.Scene.prototype.onMouseUp = function(_event) {
-    if (this.click_target) {
-        var _off = this.canvas_$.offset();
-        this.click_target.mouseup(
-            {
-                point: new paper.Point([
-                    _event.pageX - _off.left,
-                    _event.pageY - _off.top
-                ])
-            }
-        );
-    } else {
-        this.click_target = null;
-        this.is_dragging = false;
-    }
-}
-
-Rkns.Renderer.Scene.prototype.onScroll = function(_event, _scrolldelta) {
-    this.totalScroll += _scrolldelta;
-    if (Math.abs(this.totalScroll) >= 1) {
-        var _off = this.canvas_$.offset(),
-            _delta = new paper.Point([
-                _event.pageX - _off.left,
-                _event.pageY - _off.top
-            ]).subtract(this.offset).multiply( Math.SQRT2 - 1 );
-        if (this.totalScroll > 0) {
-            this.offset = this.offset.subtract(_delta);
-            this.setScale( this.scale * Math.SQRT2 );
-        } else {
-            this.offset = this.offset.add(_delta.divide( Math.SQRT2 ));
-            this.setScale( this.scale * Math.SQRT1_2);
-        }
-        this.totalScroll = 0;
-        this.redraw();
-    }
-}
-
-Rkns.Renderer.Scene.prototype.onDoubleClick = function(_event) {
-    var _off = this.canvas_$.offset(),
-        _point = new paper.Point([
-            _event.pageX - _off.left,
-            _event.pageY - _off.top
-        ]);
-    var _hitResult = paper.project.hitTest(_point);
-    if (!_hitResult || typeof _hitResult.item.__representation === "undefined") {
-        var _coords = this.toModelCoords(_point),
-            _data = {
-                id: Rkns.Utils.getUID('node'),
-                created_by: this.renkan.current_user,
-                position: {
-                    x: _coords.x,
-                    y: _coords.y
-                }
-            };
-            _node = this.renkan.project.addNode(_data);
-            this.getRepresentationByModel(_node).openEditor();
-    }
-    paper.view.draw();
-}
-
-Rkns.Renderer.Scene.prototype.onMouseEnter = function(_event) {
-    var _newEl = this.renkan.selected_bin_item;
-    if (_newEl) {
-        var _off = this.canvas_$.offset(),
-            _point = new paper.Point([
-                _event.pageX - _off.left,
-                _event.pageY - _off.top
-            ]),
-            _coords = this.toModelCoords(_point),
-            _data = {
-                id: Rkns.Utils.getUID('node'),
-                created_by: this.renkan.current_user,
-                uri: _newEl.uri,
-                title: _newEl.title,
-                description: _newEl.description,
-                image: _newEl.image,
-                position: {
-                    x: _coords.x,
-                    y: _coords.y
-                }
-            };
-        var _node = this.renkan.project.addNode(_data);
-        this.renkan.selected_bin_item = null;
-        this.is_dragging = true;
-        this.click_target = this.getRepresentationByModel(_node);
-    }
-}
\ No newline at end of file