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AutoSkip in update #6355

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merged 5 commits into from Sep 7, 2019
Merged

AutoSkip in update #6355

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50be2ce
AutoSkip in update
benmccann Jun 24, 2019
ecc654a
Address review comments
benmccann Aug 12, 2019
1dec31d
Add v3 to TODO
benmccann Aug 13, 2019
e5c8150
Address review comments
benmccann Aug 16, 2019
557b9ca
Remove unrelated code cleanup
benmccann Aug 22, 2019
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52 changes: 26 additions & 26 deletions src/core/core.scale.js
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Expand Up @@ -250,8 +250,17 @@ var Scale = Element.extend({
helpers.callback(this.options.beforeUpdate, [this]);
},

/**
* @param {number} maxWidth - the max width in pixels
* @param {number} maxHeight - the max height in pixels
* @param {object} margins - the space between the edge of the other scales and edge of the chart
* This space comes from two sources:
* - padding - space that's required to show the labels at the edges of the scale
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* - thickness of scales or legends in another orientation
*/
update: function(maxWidth, maxHeight, margins) {
var me = this;
var tickOpts = me.options.ticks;
var i, ilen, labels, label, ticks, tick;

// Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
Expand All @@ -271,7 +280,6 @@ var Scale = Element.extend({
me._maxLabelLines = 0;
me.longestLabelWidth = 0;
me.longestTextCache = me.longestTextCache || {};
me._ticksToDraw = null;
me._gridLineItems = null;
me._labelItems = null;

Expand Down Expand Up @@ -312,7 +320,7 @@ var Scale = Element.extend({

me.ticks = labels; // BACKWARD COMPATIBILITY

// IMPORTANT: from this point, we consider that `this.ticks` will NEVER change!
// IMPORTANT: below this point, we consider that `this.ticks` will NEVER change!

// BACKWARD COMPAT: synchronize `_ticks` with labels (so potentially `this.ticks`)
for (i = 0, ilen = labels.length; i < ilen; ++i) {
Expand Down Expand Up @@ -344,9 +352,13 @@ var Scale = Element.extend({
me.beforeFit();
me.fit();
me.afterFit();
//
// Auto-skip
me._ticksToDraw = tickOpts.display && tickOpts.autoSkip ? me._autoSkip(me._ticks) : me._ticks;

me.afterUpdate();

// TODO(v3): remove minSize as a public property and return value from all layout boxes. It is unused
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// make maxWidth and maxHeight private
return me.minSize;

},
Expand Down Expand Up @@ -508,6 +520,7 @@ var Scale = Element.extend({
height: 0
};

var chart = me.chart;
var opts = me.options;
var tickOpts = opts.ticks;
var scaleLabelOpts = opts.scaleLabel;
Expand Down Expand Up @@ -593,8 +606,13 @@ var Scale = Element.extend({

me.handleMargins();

me.width = minSize.width;
me.height = minSize.height;
if (isHorizontal) {
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me.width = me._length = chart.width - me.margins.left - me.margins.right;
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me.height = minSize.height;
} else {
me.width = minSize.width;
me.height = me._length = chart.height - me.margins.top - me.margins.bottom;
}
},

/**
Expand Down Expand Up @@ -870,25 +888,6 @@ var Scale = Element.extend({
return false;
},

_getTicksToDraw: function() {
var me = this;
var optionTicks = me.options.ticks;
var ticks = me._ticksToDraw;

if (ticks) {
return ticks;
}

ticks = me.getTicks();

if (optionTicks.display && optionTicks.autoSkip) {
ticks = me._autoSkip(ticks);
}

me._ticksToDraw = ticks;
return ticks;
},

/**
* @private
*/
Expand All @@ -900,8 +899,9 @@ var Scale = Element.extend({
var position = options.position;
var offsetGridLines = gridLines.offsetGridLines;
var isHorizontal = me.isHorizontal();
var ticks = me._getTicksToDraw();
var ticks = me._ticksToDraw;
var ticksLength = ticks.length + (offsetGridLines ? 1 : 0);

var tl = getTickMarkLength(gridLines);
var items = [];
var axisWidth = gridLines.drawBorder ? valueAtIndexOrDefault(gridLines.lineWidth, 0, 0) : 0;
Expand Down Expand Up @@ -1008,7 +1008,7 @@ var Scale = Element.extend({
var position = options.position;
var isMirrored = optionTicks.mirror;
var isHorizontal = me.isHorizontal();
var ticks = me._getTicksToDraw();
var ticks = me._ticksToDraw;
var fonts = parseTickFontOptions(optionTicks);
var tickPadding = optionTicks.padding;
var tl = getTickMarkLength(options.gridLines);
Expand Down