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Did some jquery flot performance tuning, added text size cache that reduced render times by 25% (for single serie graphs)

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Torkel Ödegaard 2015-05-09 19:31:00 +02:00
parent a256d71ef9
commit 2e6c2347eb
1 changed files with 13 additions and 10 deletions
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23
public/vendor/jquery/jquery.flot.js vendored
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@ -122,6 +122,7 @@ Licensed under the MIT license.
// re-calculating them when the plot is re-rendered in a loop.
this._textCache = {};
this._textSizeCache = window.flotTextSizeCache = window.flotTextSizeCache || {};
}
// Resizes the canvas to the given dimensions.
@ -368,12 +369,17 @@ Licensed under the MIT license.
element.addClass(font);
}
info = styleCache[text] = {
width: element.outerWidth(true),
height: element.outerHeight(true),
element: element,
positions: []
};
info = styleCache[text] = { element: element, positions: [] };
var size = null;// this._textSizeCache[text];
if (size) {
info.width = size.width;
info.height = size.height;
} else {
info.width = element.outerWidth(true);
info.height = element.outerHeight(true);
this._textSizeCache[text] = { width: info.width, height: info.height };
}
element.detach();
}
@ -1416,8 +1422,7 @@ Licensed under the MIT license.
var info = surface.getTextInfo(layer, t.label, font, null, maxWidth);
/// Grafana fix, add +1 to label width
labelWidth = Math.max(labelWidth, info.width + 1);
labelWidth = Math.max(labelWidth, info.width);
labelHeight = Math.max(labelHeight, info.height);
}
@ -1729,8 +1734,6 @@ Licensed under the MIT license.
axis.delta = delta;
axis.tickDecimals = Math.max(0, maxDec != null ? maxDec : dec);
axis.tickSize = opts.tickSize || size;
// grafana addition
axis.scaledDecimals = axis.tickDecimals - Math.floor(Math.log(axis.tickSize) / Math.LN10);
// Time mode was moved to a plug-in in 0.8, and since so many people use it
// we'll add an especially friendly reminder to make sure they included it.