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| /* globals d3 */
/**
* Created by knut on 14-11-23.
*/
var sq = require('./parser/sequenceDiagram').parser;
sq.yy = require('./sequenceDb');
var svgDraw = require('./svgDraw');
var conf = {
diagramMarginX:50,
diagramMarginY:10,
// Margin between actors
actorMargin:50,
// Width of actor moxes
width:150,
// Height of actor boxes
height:65,
// Margin around loop boxes
boxMargin:10,
boxTextMargin:5,
noteMargin:10,
// Space between messages
messageMargin:35
};
exports.bounds = {
data:{
startx:undefined,
stopx :undefined,
starty:undefined,
stopy :undefined,
},
verticalPos:0,
list: [],
init : function(){
this.list = [];
this.data = {
startx:undefined,
stopx :undefined,
starty:undefined,
stopy :undefined,
};
this.verticalPos =0;
},
updateVal : function (obj,key,val,fun){
if(typeof obj[key] === 'undefined'){
obj[key] = val;
}else{
obj[key] = fun(val,obj[key]);
}
},
updateLoops:function(startx,starty,stopx,stopy){
var _self = this;
var cnt = 0;
this.list.forEach(function(loop){
cnt++;
// The loop list is a stack so the biggest margins in the beginning of the list
var n = _self.list.length-cnt+1;
_self.updateVal(loop, 'startx',startx - n*conf.boxMargin, Math.min);
_self.updateVal(loop, 'starty',starty - n*conf.boxMargin, Math.min);
_self.updateVal(loop, 'stopx' ,stopx + n*conf.boxMargin, Math.max);
_self.updateVal(loop, 'stopy' ,stopy + n*conf.boxMargin, Math.max);
_self.updateVal(exports.bounds.data,'startx',startx - n*conf.boxMargin ,Math.min);
_self.updateVal(exports.bounds.data,'starty',starty - n*conf.boxMargin ,Math.min);
_self.updateVal(exports.bounds.data,'stopx' ,stopx + n*conf.boxMargin ,Math.max);
_self.updateVal(exports.bounds.data,'stopy' ,stopy + n*conf.boxMargin ,Math.max);
});
},
insert:function(startx,starty,stopx,stopy){
var _startx, _starty, _stopx, _stopy;
_startx = Math.min(startx,stopx);
_stopx = Math.max(startx,stopx);
_starty = Math.min(starty,stopy);
_stopy = Math.max(starty,stopy);
this.updateVal(exports.bounds.data,'startx',_startx,Math.min);
this.updateVal(exports.bounds.data,'starty',_starty,Math.min);
this.updateVal(exports.bounds.data,'stopx' ,_stopx ,Math.max);
this.updateVal(exports.bounds.data,'stopy' ,_stopy ,Math.max);
this.updateLoops(_startx,_starty,_stopx,_stopy);
},
newLoop:function(title){
this.list.push({startx:undefined,starty:this.verticalPos,stopx:undefined,stopy:undefined, title:title});
},
endLoop:function(){
var loop = this.list.pop();
//loop.stopy = exports.bounds.getVerticalPos();
return loop;
},
bumpVerticalPos:function(bump){
this.verticalPos = this.verticalPos + bump;
this.data.stopy = this.verticalPos;
},
getVerticalPos:function(){
return this.verticalPos;
},
getBounds:function(){
return this.data;
}
};
/**
* Draws an actor in the diagram with the attaced line
* @param center - The center of the the actor
* @param pos The position if the actor in the liost of actors
* @param description The text in the box
*/
var drawNote = function(elem, startx, verticalPos, msg){
var rect = svgDraw.getNoteRect();
rect.x = startx;
rect.y = verticalPos;
rect.width = conf.width;
rect.class = 'note';
var g = elem.append("g");
var rectElem = svgDraw.drawRect(g, rect);
var textObj = svgDraw.getTextObj();
textObj.x = startx;
textObj.y = verticalPos+conf.noteMargin;
textObj.textMargin = conf.noteMargin;
textObj.dy = '1em';
textObj.text = msg.message;
textObj.class = 'noteText';
var textElem = svgDraw.drawText(g,textObj);
var textHeight = textElem[0][0].getBBox().height;
exports.bounds.insert(startx, verticalPos, startx + conf.width, verticalPos + 2*conf.noteMargin + textHeight);
rectElem.attr('height',textHeight+ 2*conf.noteMargin);
exports.bounds.bumpVerticalPos(textHeight+ 2*conf.noteMargin);
};
/**
* Draws an actor in the diagram with the attaced line
* @param center - The center of the the actor
* @param pos The position if the actor in the list of actors
* @param description The text in the box
*/
exports.drawLoop = function(elem,bounds){
var g = elem.append("g");
var drawLoopLine = function(startx,starty,stopx,stopy){
g.append("line")
.attr("x1", startx)
.attr("y1", starty)
.attr("x2", stopx )
.attr("y2", stopy )
.attr("stroke-width", 2)
.attr("stroke", "#526e52")
.attr('class','loopLine');
};
drawLoopLine(bounds.startx, bounds.starty, bounds.stopx , bounds.starty);
drawLoopLine(bounds.stopx , bounds.starty, bounds.stopx , bounds.stopy );
drawLoopLine(bounds.startx, bounds.stopy , bounds.stopx , bounds.stopy );
drawLoopLine(bounds.startx, bounds.starty, bounds.startx, bounds.stopy );
var txt = svgDraw.getTextObj();
txt.text = "Loop";
txt.x = bounds.startx;
txt.y = bounds.starty;
txt.labelMargin = 1.5 * conf.boxMargin;
txt.class = 'labelText';
txt.fill = 'white';
svgDraw.drawLabel(g,txt);
txt = svgDraw.getTextObj();
txt.text = bounds.title;
txt.x = bounds.startx + (bounds.stopx - bounds.startx)/2;
txt.y = bounds.starty + 1.5 * conf.boxMargin;
txt.anchor = 'middle';
txt.class = 'loopText';
svgDraw.drawText(g,txt);
};
/**
* Setup arrow head and define the marker. The result is appended to the svg.
*/
var insertArrowHead = function(elem){
elem.append("defs").append("marker")
.attr("id", "arrowhead")
.attr("refX", 5) /*must be smarter way to calculate shift*/
.attr("refY", 2)
.attr("markerWidth", 6)
.attr("markerHeight", 4)
.attr("orient", "auto")
.append("path")
.attr("d", "M 0,0 V 4 L6,2 Z"); //this is actual shape for arrowhead
};
/**
* Draws a message
* @param elem
* @param startx
* @param stopx
* @param verticalPos
* @param txtCenter
* @param msg
*/
var drawMessage = function(elem, startx, stopx, verticalPos, msg){
var g = elem.append("g");
var txtCenter = startx + (stopx-startx)/2;
var textElem = g.append("text") // text label for the x axis
.attr("x", txtCenter)
.attr("y", verticalPos - 7)
.style("text-anchor", "middle")
.attr("class", "messageText")
.text(msg.message);
var textWidth = textElem[0][0].getBBox().width;
var line;
Iif(startx===stopx){
line = g.append("path")
.attr('d', 'M ' +startx+ ','+verticalPos+' C ' +(startx+60)+ ','+(verticalPos-10)+' ' +(startx+60)+ ',' +
(verticalPos+30)+' ' +startx+ ','+(verticalPos+20));
exports.bounds.bumpVerticalPos(30);
var dx = Math.max(textWidth/2,100);
exports.bounds.insert(startx-dx, exports.bounds.getVerticalPos() -10, stopx+dx, exports.bounds.getVerticalPos());
}else{
line = g.append("line");
line.attr("x1", startx);
line.attr("y1", verticalPos);
line.attr("x2", stopx);
line.attr("y2", verticalPos);
exports.bounds.insert(startx, exports.bounds.getVerticalPos() -10, stopx, exports.bounds.getVerticalPos());
}
//Make an SVG Container
//Draw the line
Iif (msg.type === 1) {
line.style("stroke-dasharray", ("3, 3"));
line.attr("class", "messageLine1");
}
else {
line.attr("class", "messageLine0");
}
line.attr("stroke-width", 2);
line.attr("stroke", "black");
line.style("fill", "none"); // remove any fill colour
line.attr("marker-end", "url(#arrowhead)");
};
/**
* Draws an actor in the diagram with the attaced line
* @param center - The center of the the actor
* @param pos The position if the actor in the liost of actors
* @param description The text in the box
*/
var drawActor = function(elem, left,description){
var center = left + (conf.width/2);
var g = elem.append("g");
g.append("line")
.attr("x1", center)
.attr("y1", 5)
.attr("x2", center)
.attr("y2", 2000)
.attr("class", 'actor-line')
.attr("stroke-width", '0.5px')
.attr("stroke", '#999');
g.append("rect")
.attr("x", left)
.attr("y", 0)
.attr("fill", '#eaeaea')
.attr("stroke", '#666')
.attr("width", conf.width)
.attr("height", conf.height)
.attr("class", 'actor')
.attr("rx", 3)
.attr("ry", 3);
g.append("text") // text label for the x axis
.attr("x", center)
.attr("y", (conf.height/2)+5)
.attr('class','actor')
.style("text-anchor", "middle")
.text(description)
;
exports.bounds.insert(left, 0, left + conf.width, conf.height);
};
module.exports.drawActors = function(diagram, actors, actorKeys){
var i;
// Draw the actors
for(i=0;i<actorKeys.length;i++){
var key = actorKeys[i];
// Add some rendering data to the object
actors[key].x = i*conf.actorMargin +i*conf.width;
actors[key].y = 0;
actors[key].width = conf.diagramMarginY;
actors[key].height = conf.diagramMarginY;
// Draw the box with the attached line
drawActor(diagram, actors[key].x, actors[key].description);
}
// Add a margin between the actor boxes and the first arrow
//exports.bounds.bumpVerticalPos(conf.height+conf.messageMargin);
exports.bounds.bumpVerticalPos(conf.height);
};
module.exports.setConf = function(cnf){
conf = cnf;
};
/**
* Draws a flowchart in the tag with id: id based on the graph definition in text.
* @param text
* @param id
*/
module.exports.draw = function (text, id) {
sq.yy.clear();
sq.parse(text);
exports.bounds.init();
var diagram = d3.select('#'+id);
// Fetch data from the parsing
var actors = sq.yy.getActors();
var actorKeys = sq.yy.getActorKeys();
var messages = sq.yy.getMessages();
module.exports.drawActors(diagram, actors, actorKeys);
// The arrow head definition is attached to the svg once
insertArrowHead(diagram);
// Draw the messages/signals
messages.forEach(function(msg){
var startx;
var stopx;
switch(msg.type){
case sq.yy.LINETYPE.NOTE:
exports.bounds.bumpVerticalPos(conf.boxMargin);
startx = actors[msg.from].x;
stopx = actors[msg.to].x;
if(msg.placement !== 0){
// Right of
drawNote(diagram, startx + (conf.width + conf.actorMargin)/2, exports.bounds.getVerticalPos(), msg);
}else{
// Left of
drawNote(diagram, startx - (conf.width + conf.actorMargin)/2, exports.bounds.getVerticalPos(), msg);
}
break;
case sq.yy.LINETYPE.LOOP_START:
exports.bounds.bumpVerticalPos(conf.boxMargin);
exports.bounds.newLoop(msg.message);
exports.bounds.bumpVerticalPos(conf.boxMargin + conf.boxTextMargin);
break;
case sq.yy.LINETYPE.LOOP_END:
var loopData = exports.bounds.endLoop();
exports.drawLoop(diagram, loopData);
exports.bounds.bumpVerticalPos(conf.boxMargin);
break;
default:
exports.bounds.bumpVerticalPos(conf.messageMargin);
startx = actors[msg.from].x + conf.width/2;
stopx = actors[msg.to].x + conf.width/2;
drawMessage(diagram, startx, stopx, exports.bounds.getVerticalPos(), msg);
}
});
var box = exports.bounds.getBounds();
var height = box.stopy-box.starty+2*conf.diagramMarginY;
var width = box.stopx-box.startx+2*conf.diagramMarginX;
diagram.attr("height",height);
diagram.attr("width", width );
diagram.attr("viewBox", (box.startx-conf.diagramMarginX) + ' -' +conf.diagramMarginY + ' ' + width + ' ' + height);
};
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