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some duplicate code cleanup

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This commit is contained in:
Evert Timberg
2015-11-14 22:06:37 -05:00
parent 01fe535594
commit 3bd9120a3a
1 changed files with 20 additions and 28 deletions
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48
src/elements/element.line.js
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@@ -52,12 +52,30 @@
},
draw: function() {
var _this = this;
var vm = this._view;
var ctx = this._chart.ctx;
var first = this._children[0];
var last = this._children[this._children.length - 1];
function loopBackToStart() {
if (!first._view.skip) {
// Draw a bezier line from last to first
ctx.bezierCurveTo(
last._view.controlPointNextX,
last._view.controlPointNextY,
first._view.controlPointPreviousX,
first._view.controlPointPreviousY,
first._view.x,
first._view.y
);
} else {
// Go to center
ctx.lineTo(_this._view.scaleZero.x, _this._view.scaleZero.y);
}
}
ctx.save();
// If we had points and want to fill this line, do so.
@@ -91,20 +109,7 @@
// For radial scales, loop back around to the first point
if (this._loop) {
if (!first._view.skip) {
// Draw a bezier line
ctx.bezierCurveTo(
last._view.controlPointNextX,
last._view.controlPointNextY,
first._view.controlPointPreviousX,
first._view.controlPointPreviousY,
first._view.x,
first._view.y
);
} else {
// Go to center
ctx.lineTo(this._view.scaleZero.x, this._view.scaleZero.y);
}
loopBackToStart();
} else {
//Round off the line by going to the base of the chart, back to the start, then fill.
ctx.lineTo(this._children[this._children.length - 1]._view.x, vm.scaleZero);
@@ -147,20 +152,7 @@
}, this);
if (this._loop) {
if (!first._view.skip) {
// Draw a bezier line
ctx.bezierCurveTo(
last._view.controlPointNextX,
last._view.controlPointNextY,
first._view.controlPointPreviousX,
first._view.controlPointPreviousY,
first._view.x,
first._view.y
);
} else {
// Go to center
ctx.lineTo(this._view.scaleZero.x, this._view.scaleZero.y);
}
loopBackToStart();
}
ctx.stroke();