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arrow consistency

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This commit is contained in:
Peter Cottle 2012-09-28 14:49:35 -07:00
parent 7f7681320e
commit 529fce3209
1 changed files with 34 additions and 23 deletions
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57
src/tree.js
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@ -6,10 +6,11 @@ var VisBranch = Backbone.Model.extend({
arrow: null,
offsetX: GRAPHICS.nodeRadius * 4.75,
offsetY: 0,
arrowInnerMargin: 8,
arrowLength: 15,
arrowRatio: 3.5,
arrowEdgeHeight: 5,
arrowHeight: 14,
arrowInnerSkew: 0,
arrowEdgeHeight: 6,
arrowLength: 14,
arrowOffsetFromCircleX: 10,
vPad: 5,
hPad: 5,
animationSpeed: GRAPHICS.defaultAnimationTime,
@ -81,32 +82,42 @@ var VisBranch = Backbone.Model.extend({
y: pos.y + y
};
};
var coords = function(pos) {
var toStringCoords = function(pos) {
return String(Math.round(pos.x)) + ',' + String(Math.round(pos.y));
};
var arrowTip = offset2d(this.getCommitPosition(),
this.get('arrowOffsetFromCircleX'),
0
);
var arrowEdgeUp = offset2d(arrowTip, this.get('arrowLength'), -this.get('arrowHeight'));
var arrowEdgeLow = offset2d(arrowTip, this.get('arrowLength'), this.get('arrowHeight'));
// worst variable names evar!!! warning
// start at rect corner
var overlap = 5;
var startPos = offset2d(this.getRectPosition(), overlap, this.get('arrowInnerMargin'));
// first the beginning of the head
var next = offset2d(startPos, -this.get('arrowLength'), 0);
// head side point
var next2 = offset2d(next, 0, -this.get('arrowEdgeHeight'));
// head point
var next3 = offset2d(this.getCommitPosition(),
3, 0);
var arrowInnerUp = offset2d(arrowEdgeUp,
this.get('arrowInnerSkew'),
this.get('arrowEdgeHeight')
);
var arrowInnerLow = offset2d(arrowEdgeLow,
this.get('arrowInnerSkew'),
-this.get('arrowEdgeHeight')
);
// get the next three points in backwards order
var end = offset2d(this.getRectPosition(), overlap, this.getSingleRectSize().h - this.get('arrowInnerMargin'));
var beforeEnd = offset2d(end, -this.get('arrowLength'), 0);
var beforeBeforeEnd = offset2d(beforeEnd, 0, this.get('arrowEdgeHeight'));
var tailLength = 30;
var arrowStartUp = offset2d(arrowInnerUp, tailLength, 0);
var arrowStartLow = offset2d(arrowInnerLow, tailLength, 0);
var pathStr = '';
pathStr += 'M' + coords(startPos) + ' ';
_.each([next, next2, next3, beforeBeforeEnd, beforeEnd, end], function(pos) {
pathStr += 'L' + coords(pos) + ' ';
pathStr += 'M' + toStringCoords(arrowStartUp) + ' ';
var coords = [
arrowInnerUp,
arrowEdgeUp,
arrowTip,
arrowEdgeLow,
arrowInnerLow,
arrowStartLow
];
_.each(coords, function(pos) {
pathStr += 'L' + toStringCoords(pos) + ' ';
}, this);
pathStr += 'z';
return pathStr;