/*
* Copyright 2012 Institut de recherche et d'innovation
* contributor(s) : Yves-Marie Haussonne, Raphael Velt, Samuel Huron
*
* contact@iri.centrepompidou.fr
* http://www.iri.centrepompidou.fr
*
* This software is a computer program whose purpose is to show and add annotations on a video .
* This software is governed by the CeCILL-C license under French law and
* abiding by the rules of distribution of free software. You can use,
* modify and/ or redistribute the software under the terms of the CeCILL-C
* license as circulated by CEA, CNRS and INRIA at the following URL
* "http://www.cecill.info".
*
* The fact that you are presently reading this means that you have had
* knowledge of the CeCILL-C license and that you accept its terms.
*/
if (typeof Rkns !== "object") {
Rkns = {}
}
Rkns.$ = jQuery;
Rkns._ = _;
Rkns.i18n = {
en: {
zoom_in: "Zoom In",
zoom_out: "Zoom Out"
}
}
Rkns.Utils = {
inherit : function(_baseClass) {
var _class = function() {
_baseClass.apply(this, Array.prototype.slice.call(arguments, 0));
if (typeof this._init == "function") {
this._init.apply(this, Array.prototype.slice.call(arguments, 0));
}
}
_class.prototype = new _baseClass();
return _class;
}
}
Rkns.Models = {};
Rkns.Models.getUID = function(obj) {
var guid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8);
return v.toString(16);
});
return obj.type + "-" + guid;
};
Rkns.Models.RenkanModel = Backbone.RelationalModel.extend({
idAttribute : "_id",
constructor: function(options) {
if (typeof options !== "undefined") {
options._id = options.id || Rkns.Models.getUID(this);
options.title = options.title || "(untitled " + this.type + ")";
options.description = options.description || "";
options.uri = options.uri || "";
if(typeof this.prepare === "function") {
options = this.prepare(options);
}
}
Backbone.RelationalModel.prototype.constructor.call(this, options);
},
validate: function() {
if(!this.type) {
return "object has no type";
}
},
addReference : function(_options, _propName, _list, _id, _default) {
var _element = _list.get(_id);
if (typeof _element === "undefined" && typeof _default !== "undefined") {
_options[_propName ] = _default;
}
else {
_options[_propName ] = _element;
}
}
});
// USER
Rkns.Models.User = Rkns.Models.RenkanModel.extend({
type: "user",
prepare: function(options) {
options.color = options.color || "#666666";
return options;
},
toJSON: function() {
return {
id: this.get("id"),
title: this.get("title"),
uri: this.get("uri"),
description: this.get("description"),
color: this.get("color"),
}
},
});
// NODE
Rkns.Models.Node = Rkns.Models.RenkanModel.extend({
type: "node",
relations: [{
type: Backbone.HasOne,
key: "created_by",
relatedModel: Rkns.Models.User
}],
prepare: function(options) {
project = options.project;
this.addReference(options, "created_by", project.get("users"), options.created_by, project.current_user);
options.description = options.description || "";
return options;
},
toJSON: function() {
return {
id: this.get("id"),
title: this.get("title"),
uri: this.get("uri"),
description: this.get("description"),
position: this.get("position"),
created_by: this.get("created_by").get("id")
}
},
});
// EDGE
Rkns.Models.Edge = Rkns.Models.RenkanModel.extend({
type: "edge",
relations: [
{
type: Backbone.HasOne,
key: "created_by",
relatedModel: Rkns.Models.User
},
{
type: Backbone.HasOne,
key: "from",
relatedModel: Rkns.Models.Node
},
{
type: Backbone.HasOne,
key: "to",
relatedModel: Rkns.Models.Node
},
],
prepare: function(options) {
project = options.project;
this.addReference(options, "created_by", project.get("users"), options.created_by, project.current_user);
this.addReference(options, "from", project.get("nodes"), options.from);
this.addReference(options, "to", project.get("nodes"), options.to);
return options;
},
toJSON: function() {
return {
id: this.get("id"),
title: this.get("title"),
uri: this.get("uri"),
description: this.get("description"),
from: this.get("from").get("id"),
to: this.get("to").get("id"),
created_by: this.get("created_by").get("id"),
}
},
});
// PROJECT
Rkns.Models.Project = Rkns.Models.RenkanModel.extend({
type: "project",
relations: [
{
type: Backbone.HasMany,
key: "users",
relatedModel: Rkns.Models.User,
reverseRelation: {
key: 'project',
includeInJSON: '_id'
},
},
{
type: Backbone.HasMany,
key: "nodes",
relatedModel: Rkns.Models.Node,
reverseRelation: {
key: 'project',
includeInJSON: '_id'
},
},
{
type: Backbone.HasMany,
key: "edges",
relatedModel: Rkns.Models.Edge,
reverseRelation: {
key: 'project',
includeInJSON: '_id'
},
}
],
addUser: function(_props) {
_props.project = this;
var _user = new Rkns.Models.User(_props);
this.get("users").push(_user);
return _user;
},
addNode: function(_props) {
_props.project = this;
var _node = new Rkns.Models.Node(_props);
this.get("nodes").push(_node);
return _node;
},
addEdge: function(_props) {
_props.project = this;
var _edge = new Rkns.Models.Edge(_props);
this.get("edges").push(_edge);
return _edge;
},
removeNode: function(_model) {
this.get("nodes").remove(_model);
},
removeEdge: function(_model) {
this.get("edges").remove(_model);
},
validate: function(options) {
var _project = this;
Rkns._(options.users).each(function(_item) {
_item.project = _project;
});
Rkns._(options.nodes).each(function(_item) {
_item.project = _project;
});
Rkns._(options.edges).each(function(_item) {
_item.project = _project;
});
},
// Add event handler to remove edges when a node is removed
initialize: function() {
var _this = this;
this.on("remove:nodes", function(_node) {
_this.get("edges").remove(
_this.get("edges").filter(function(_edge) {
return _edge.get("from") == _node || _edge.get("to") == _node;
})
);
});
}
});
/* Point of entry */
Rkns.Renkan = function(_opts) {
if (typeof _opts.language !== "string" || typeof Rkns.i18n[_opts.language] == "undefined") {
_opts.language = "en";
}
if (typeof _opts.container !== "string") {
_opts.container = "renkan";
}
if (typeof _opts.search !== "object" || !_opts.search) {
_opts.search = [];
}
this.project = new Rkns.Models.Project();
this.l10n = Rkns.i18n[_opts.language];
this.$ = Rkns.$("#" + _opts.container);
this.$.html(this.template());
this.renderer = new Rkns.Renderer.Scene(this);
}
Rkns.Renkan.prototype.template = Rkns._.template(
'<div class="Rk-Render Rk-Render-Full"></div>'
);
Rkns.jsonImport = function(_renkan, _opts) {
var _proj = _renkan.project;
if (typeof _opts.http_method == "undefined") {
_opts.http_method = 'PUT';
}
var _load = function() {
Rkns.$.getJSON(_opts.url, function(_data) {
_proj.set(_data);
_renkan.renderer.autoScale();
});
}
_load();
}
Rkns.Renderer = {
_MARGIN_X: 80,
_MARGIN_Y: 50,
_MIN_DRAG_DISTANCE: 2,
_NODE_RADIUS: 15,
_NODE_FONT_SIZE: 10,
_EDGE_FONT_SIZE: 9,
_NODE_MAX_CHAR: 30,
_EDGE_MAX_CHAR: 20,
_ARROW_LENGTH: 16,
_ARROW_WIDTH: 8,
_TOOLTIP_ARROW_LENGTH : 15,
_TOOLTIP_ARROW_WIDTH : 26,
_TOOLTIP_MARGIN : 10,
_TOOLTIP_PADDING : 8,
_TOOLTIP_GRADIENT : new paper.Gradient(['#f0f0f0', '#d0d0d0'])
}
Rkns.Renderer.Utils = {
shortenText : function(_text,_length) {
var _rgxp = new RegExp('^(.{' + _length + '}).+$');
return _text.replace(/(\n|\r|\r\n)/mg,' ').replace(_rgxp,'$1…');
},
drawTooltip : function(_coords, _path, _width, _xmargin, _selector) {
_selector.css({
width: (_width - 2* Rkns.Renderer._TOOLTIP_PADDING),
});
var _height = _selector.outerHeight() + 2* Rkns.Renderer._TOOLTIP_PADDING,
_isLeft = (_coords.x < paper.view.center.x ? 1 : -1),
_left = _coords.x + _isLeft * ( _xmargin + Rkns.Renderer._TOOLTIP_ARROW_LENGTH ),
_right = _coords.x + _isLeft * ( _xmargin + Rkns.Renderer._TOOLTIP_ARROW_LENGTH + _width ),
_top = _coords.y - _height / 2;
if (_top < Rkns.Renderer._TOOLTIP_MARGIN) {
_top = Math.min( Rkns.Renderer._TOOLTIP_MARGIN, _coords.y - Rkns.Renderer._TOOLTIP_ARROW_WIDTH / 2 );
}
var _bottom = _top + _height;
if (_bottom > (paper.view.size.height - Rkns.Renderer._TOOLTIP_MARGIN)) {
_bottom = Math.max( paper.view.size.height - Rkns.Renderer._TOOLTIP_MARGIN, _coords.y + Rkns.Renderer._TOOLTIP_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._TOOLTIP_ARROW_WIDTH / 2;
_path.segments[6].point.y = _coords.y + Rkns.Renderer._TOOLTIP_ARROW_WIDTH / 2;
_path.closed = true;
_path.fillColor = new paper.GradientColor(Rkns.Renderer._TOOLTIP_GRADIENT, [0,_top], [0, _bottom]);
_selector.css({
left: (Rkns.Renderer._TOOLTIP_PADDING + Math.min(_left, _right)),
top: (Rkns.Renderer._TOOLTIP_PADDING + _top)
});
}
}
Rkns.Renderer._BaseRepresentation = function(_renderer, _model) {
if (typeof _renderer !== "undefined") {
this.renderer = _renderer;
this.project = _renderer.renkan.project;
this.model = _model;
if (_model) {
var _this = this;
_model.on("select", function() {
_this.select();
});
_model.on("unselect", function() {
_this.unselect();
});
}
}
}
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() {}
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.title = new paper.PointText([0,0]);
this.title.characterStyle = {
fontSize: Rkns.Renderer._NODE_FONT_SIZE,
fillColor: 'black'
};
this.title.paragraphStyle.justification = 'center';
this.title.__representation = this;
this.model_coords = new paper.Point(this.model.get("position"));
}
Rkns.Renderer.Node.prototype.redraw = function() {
this.paper_coords = this.renderer.toPaperCoords(this.model_coords);
this.circle.position = this.paper_coords;
this.title.content = Rkns.Renderer.Utils.shortenText(this.model.get("title"), Rkns.Renderer._NODE_MAX_CHAR);
this.title.position = this.paper_coords.add([0, 2 * Rkns.Renderer._NODE_RADIUS]);
this.circle.strokeColor = this.model.get("created_by").get("color");
}
Rkns.Renderer.Node.prototype.paperShift = function(_delta) {
this.paper_coords = this.paper_coords.add(_delta);
this.model_coords = this.renderer.toModelCoords(this.paper_coords);
this.renderer.redraw();
}
Rkns.Renderer.Node.prototype.openTooltip = function() {
this.renderer.removeRepresentationsOfType("tooltip");
var _tooltip = this.renderer.addRepresentation("NodeTooltip",null);
_tooltip.node_representation = this;
_tooltip.redraw();
}
Rkns.Renderer.Node.prototype.select = function() {
this.circle.strokeWidth = 3;
this.circle.fillColor = "#ffffc0";
paper.view.draw();
}
Rkns.Renderer.Node.prototype.unselect = function() {
this.circle.strokeWidth = 1;
this.circle.fillColor = "#ffffff";
paper.view.draw();
}
Rkns.Renderer.Node.prototype.mouseup = function(_event) {
}
Rkns.Renderer.Node.prototype.destroy = function(_event) {
this.circle.remove();
this.title.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.line = new paper.Path();
this.line.add([0,0],[0,0]);
this.line.__representation = this;
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.__representation = this;
this.text_angle = 0;
this.arrow_angle = 0;
}
Rkns.Renderer.Edge.prototype.redraw = function() {
var _p0o = this.from_representation.paper_coords,
_p1o = this.to_representation.paper_coords,
_v = _p1o.subtract(_p0o),
_r = _v.length,
_u = _v.divide(_r),
_delta = new paper.Point([- _u.y, _u.x]).multiply( 4 ),
_p0 = _p0o.add(_delta), /* Adding a 4 px difference */
_p1 = _p1o.add(_delta), /* to differentiate inbound and outbound links */
_a = _v.angle,
_color = this.model.get("created_by").get("color");
this.paper_coords = _p0.add(_p1).divide(2);
this.line.strokeColor = _color;
this.line.segments[0].point = _p0;
this.line.segments[1].point = _p1;
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 = Rkns.Renderer.Utils.shortenText(this.model.get("title"), Rkns.Renderer._EDGE_MAX_CHAR);
this.text.position = this.paper_coords;
this.text_angle = _a;
}
Rkns.Renderer.Edge.prototype.openTooltip = function() {
this.renderer.removeRepresentationsOfType("tooltip");
var _tooltip = this.renderer.addRepresentation("EdgeTooltip",null);
_tooltip.edge_representation = this;
_tooltip.redraw();
}
Rkns.Renderer.Edge.prototype.select = function() {
this.line.strokeWidth = 3;
this.openTooltip();
paper.view.draw();
}
Rkns.Renderer.Edge.prototype.unselect = function() {
this.line.strokeWidth = 1;
paper.view.draw();
}
Rkns.Renderer.Edge.prototype.mouseup = function(_event) {
}
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.line.remove();
this.arrow.remove();
this.text.remove();
}
/* */
Rkns.Renderer.NodeTooltip = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
Rkns.Renderer.NodeTooltip.prototype._init = function() {
this.renderer.overlay_layer.activate();
this.type = "tooltip";
this.tooltip_block = new paper.Path();
var _pts = Rkns._(Rkns._.range(8)).map(function() {return [0,0]});
this.tooltip_block.add.apply(this.tooltip_block, _pts);
this.tooltip_block.strokeWidth = 2;
this.tooltip_block.strokeColor = "#999999";
this.tooltip_block.fillColor = "#e0e0e0";
this.tooltip_block.opacity = .8;
this.tooltip_$ = Rkns.$('<div>')
.appendTo(this.renderer.tooltip_$)
.css({
position: "absolute",
opacity: .8
})
.hide();
}
Rkns.Renderer.NodeTooltip.prototype.template = Rkns._.template(
'<h2><span class="Rk-CloseX">×</span><%=a%></h2>'
+ '<p><%=description%></p>'
);
Rkns.Renderer.NodeTooltip.prototype.redraw = function() {
var _coords = this.node_representation.paper_coords,
_model = this.node_representation.model,
_title = _model.get("title"),
_uri = _model.get("uri");
this.tooltip_$
.html(this.template({
a: (_uri ? '<a href="' + _uri + '" target="_blank">' : '' ) + _title + (_uri ? '</a>' : '' ),
description: _model.get("description").replace(/(\n|\r|\r\n)/mg,' ').substr(0,180).replace(/(^.{150,179})[\s].+$/m,'$1…')
}))
.show();
Rkns.Renderer.Utils.drawTooltip(_coords, this.tooltip_block, 250, 15, this.tooltip_$);
var _this = this;
this.tooltip_$.find(".Rk-CloseX").click(function() {
_this.renderer.removeRepresentation(_this);
paper.view.draw();
});
this.tooltip_$.find("input, textarea").bind("keyup change", function() {
_this.tooltip_$.find(".Rk-Edit-Goto").attr("href",_this.tooltip_$.find(".Rk-Edit-URI").val());
});
paper.view.draw();
}
Rkns.Renderer.NodeTooltip.prototype.destroy = function() {
this.tooltip_block.remove();
this.tooltip_$.detach();
}
/* */
Rkns.Renderer.EdgeTooltip = Rkns.Utils.inherit(Rkns.Renderer._BaseRepresentation);
Rkns.Renderer.EdgeTooltip.prototype._init = function() {
this.renderer.overlay_layer.activate();
this.type = "tooltip";
this.tooltip_block = new paper.Path();
var _pts = Rkns._(Rkns._.range(8)).map(function() {return [0,0]});
this.tooltip_block.add.apply(this.tooltip_block, _pts);
this.tooltip_block.strokeWidth = 2;
this.tooltip_block.strokeColor = "#999999";
this.tooltip_block.fillColor = "#e0e0e0";
this.tooltip_block.opacity = .8;
this.tooltip_$ = Rkns.$('<div>')
.appendTo(this.renderer.tooltip_$)
.css({
position: "absolute",
opacity: .8
})
.hide();
}
Rkns.Renderer.EdgeTooltip.prototype.template = Rkns._.template(
'<h2><span class="Rk-CloseX">×</span><%=a%></h2>'
+ '<p><%=description%></p>'
);
Rkns.Renderer.EdgeTooltip.prototype.redraw = function() {
var _coords = this.edge_representation.paper_coords,
_model = this.edge_representation.model,
_title = _model.get("title"),
_uri = _model.get("uri");
this.tooltip_$
.html(this.template({
a: (_uri ? '<a href="' + _uri + '" target="_blank">' : '' ) + _title + (_uri ? '</a>' : '' ),
description: _model.get("description").replace(/(\n|\r|\r\n)/mg,' ').substr(0,180).replace(/(^.{150,179})[\s].+$/m,'$1…')
}))
.show();
Rkns.Renderer.Utils.drawTooltip(_coords, this.tooltip_block, 250, 5, this.tooltip_$);
var _this = this;
this.tooltip_$.find(".Rk-CloseX").click(function() {
_this.renderer.removeRepresentation(_this);
paper.view.draw();
});
paper.view.draw();
}
Rkns.Renderer.EdgeTooltip.prototype.destroy = function() {
this.tooltip_block.remove();
this.tooltip_$.detach();
}
/* */
Rkns.Renderer.Scene = function(_renkan) {
this.renkan = _renkan;
this.$ = Rkns.$(".Rk-Render");
this.representations = [];
this.$.html(this.template({
width: this.$.width(),
height: this.$.height(),
l10n: _renkan.l10n
}))
this.canvas_$ = this.$.find(".Rk-Canvas");
this.tooltip_$ = this.$.find(".Rk-Editor");
paper.setup(this.canvas_$[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();
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.tooltip_$.find(".Rk-ZoomOut").click(function() {
_this.offset = new paper.Point([
_this.canvas_$.width(),
_this.canvas_$.height()
]).multiply( .5 * ( 1 - Math.SQRT1_2 ) ).add(_this.offset.multiply( Math.SQRT1_2 ));
_this.scale *= Math.SQRT1_2;
_this.redraw();
});
this.tooltip_$.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.scale *= Math.SQRT2;
_this.redraw();
});
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("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(
'<canvas class="Rk-Canvas" width="<%=width%>" height="<%=height%>"></canvas><div class="Rk-Editor">'
+ '<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.autoScale = function() {
if (this.renkan.project.get("nodes").length) {
var _xx = this.renkan.project.get("nodes").map(function(_node) { return _node.get("position").x }),
_yy = this.renkan.project.get("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);
this.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(this.scale));
this.redraw();
}
}
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);
if (_model) {
var _this = this;
_model.on("change", function() {
_repr.redraw();
});
_model.on("remove", function() {
_this.removeRepresentation(_repr);
_this.redraw();
});
}
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.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.unselectAll = function() {
Rkns._(this.representations).each(function(_repr) {
_repr.model.trigger("unselect");
});
}
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 !== _newTarget && _newTarget.model) {
if (this.selected_target) {
this.selected_target.model.trigger("unselect");
}
_newTarget.model.trigger("select");
if (typeof _newTarget.openTooltip === "function") {
_newTarget.openTooltip();
}
this.selected_target = _newTarget;
}
} else {
if (!_hitResult) {
this.removeRepresentationsOfType("tooltip");
}
if (this.selected_target) {
this.selected_target.model.trigger("unselect");
}
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) {
this.is_dragging = false;
var _hitResult = paper.project.hitTest(_event.point);
if (_hitResult && typeof _hitResult.item.__representation !== "undefined") {
this.click_target = _hitResult.item.__representation;
} else {
this.click_target = null;
}
}
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_$.offset();
if (this.click_target.model) {
this.click_target.model.trigger("click");
}
}
this.is_dragging = false;
this.click_target = null;
}
Rkns.Renderer.Scene.prototype.onScroll = function(_event, _scrolldelta) {
this.totalScroll += _scrolldelta;
if (Math.abs(this.totalScroll) >= 1) {
var _off = this.canvas_$.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.scale *= Math.SQRT2;
} else {
this.offset = this.offset.add(_delta.divide( Math.SQRT2 ));
this.scale *= Math.SQRT1_2;
}
this.totalScroll = 0;
this.redraw();
}
}