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Update gitgraph.js to fix blurry commit graph on HiDPI screens (#2957)

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This commit is contained in:
Michael Kuhn 2017-11-22 17:08:26 +01:00 • committed by Lunny Xiao
parent 2cb6c51158
commit 42d781a709
2 changed files with 21 additions and 4 deletions
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23
public/vendor/plugins/gitgraph/gitgraph.js vendored
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@ -44,6 +44,15 @@ var gitGraph = function (canvas, rawGraphList, config) {
var ctx = canvas.getContext("2d");
var devicePixelRatio = window.devicePixelRatio || 1;
var backingStoreRatio = ctx.webkitBackingStorePixelRatio ||
ctx.mozBackingStorePixelRatio ||
ctx.msBackingStorePixelRatio ||
ctx.oBackingStorePixelRatio ||
ctx.backingStorePixelRatio || 1;
var ratio = devicePixelRatio / backingStoreRatio;
var init = function () {
var maxWidth = 0;
var i;
@ -61,12 +70,20 @@ var gitGraph = function (canvas, rawGraphList, config) {
graphList.unshift(row);
}
canvas.width = maxWidth * config.unitSize;
canvas.height = graphList.length * config.unitSize;
var width = maxWidth * config.unitSize;
var height = graphList.length * config.unitSize;
canvas.width = width * ratio;
canvas.height = height * ratio;
canvas.style.width = width + 'px';
canvas.style.height = height + 'px';
ctx.lineWidth = config.lineWidth;
ctx.lineJoin = "round";
ctx.lineCap = "round";
ctx.scale(ratio, ratio);
};
var genRandomStr = function () {
@ -186,7 +203,7 @@ var gitGraph = function (canvas, rawGraphList, config) {
}
}
y = canvas.height - config.unitSize * 0.5;
y = (canvas.height / ratio) - config.unitSize * 0.5;
//iterate
for (i = 0, l = graphList.length; i < l; i++) {