Name | Type | Default | Description
--- | --- | --- | ---
autoSkip | Boolean | true | If true, automatically calculates how many labels that can be shown and hides labels accordingly. Turn it off to show all labels no matter what
-callback | Function | `function(value) { return '' + value; } ` | Returns the string representation of the tick value as it should be displayed on the chart. See [callback](#scales-creating-custom-tick-formats) section below.
+callback | Function | `function(value) { return helpers.isArray(value) ? value : '' + value; }` | Returns the string representation of the tick value as it should be displayed on the chart. See [callback](#scales-creating-custom-tick-formats) section below.
display | Boolean | true | If true, show the ticks.
fontColor | Color | "#666" | Font color for the tick labels.
fontFamily | String | "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif" | Font family for the tick labels, follows CSS font-family options.
For example, to set the minimum value of 0 for all linear scales, you would do the following. Any linear scales created after this time would now have a minimum of 0.
```
Chart.scaleService.updateScaleDefaults('linear', {
- ticks: {
- min: 0
- }
+ ticks: {
+ min: 0
+ }
})
```
// to do maybe simplify this function a bit so we can do this more recursively?
helpers.each(thing, function(nestedThing) {
// Undefined strings and arrays should not be measured
- if (nestedThing !== undefined && nestedThing !== null && helpers.isArray(nestedThing)) {
+ if (nestedThing !== undefined && nestedThing !== null && !helpers.isArray(nestedThing)) {
longest = helpers.measureText(ctx, data, gc, longest, nestedThing);
}
});
autoSkip: true,
autoSkipPadding: 0,
labelOffset: 0,
+ // We pass through arrays to be rendered as multiline labels, we convert Others to strings here.
callback: function(value) {
return helpers.isArray(value) ? value : '' + value;
}
helpers.each(this.ticks, function (label, index) {
// Blank optionTicks
var isLastTick = this.ticks.length === index + 1;
- var lineHeight;
// Since we always show the last tick,we need may need to hide the last shown one before
var shouldSkip = (skipRatio > 1 && index % skipRatio > 0) || (index % skipRatio === 0 && index + skipRatio >= this.ticks.length);
context.font = tickLabelFont;
context.textAlign = (isRotated) ? "right" : "center";
context.textBaseline = (isRotated) ? "middle" : options.position === "top" ? "bottom" : "top";
-
- lineHeight = context.measureText("M").width * 1.2;
-
+
if (helpers.isArray(label)) {
for (var i = 0, y = 0; i < label.length; ++i) {
- context.fillText(label[i], 0, y);
- y += lineHeight;
+ // We just make sure the multiline element is a string here..
+ context.fillText('' + label[i], 0, y);
+ // apply same lineSpacing as calculated @ L#320
+ y += (tickFontSize * 1.5);
}
} else {
context.fillText(label, 0, 0);
}]);
});
+ it('should return the width of the longest text in an Array and 2D Array', function() {
+ var context = window.createMockContext();
+ var font = "normal 12px 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif";
+ var arrayOfThings_1D = ['FooBar','Bar'];
+ var arrayOfThings_2D = [['FooBar_1','Bar_2'],'Foo_1'];
+
+
+ // Regardless 'FooBar' is the longest label it should return (charcters * 10)
+ expect(helpers.longestText(context, font, arrayOfThings_1D, {})).toEqual(60);
+ expect(helpers.longestText(context, font, arrayOfThings_2D, {})).toEqual(80);
+ // We check to make sure we made the right calls to the canvas.
+ expect(context.getCalls()).toEqual([{
+ name: 'measureText',
+ args: ['FooBar']
+ }, {
+ name: 'measureText',
+ args: ['Bar']
+ }, {
+ name: 'measureText',
+ args: ['FooBar_1']
+ }, {
+ name: 'measureText',
+ args: ['Bar_2']
+ }, {
+ name: 'measureText',
+ args: ['Foo_1']
+ }]);
+ });
+
+ it('compare text with current longest and update', function() {
+ var context = window.createMockContext();
+ var data = {};
+ var gc = [];
+ var longest = 70;
+
+ expect(helpers.measureText(context, data, gc, longest, 'foobar')).toEqual(70);
+ expect(helpers.measureText(context, data, gc, longest, 'foobar_')).toEqual(70);
+ expect(helpers.measureText(context, data, gc, longest, 'foobar_1')).toEqual(80);
+ // We check to make sure we made the right calls to the canvas.
+ expect(context.getCalls()).toEqual([{
+ name: 'measureText',
+ args: ['foobar']
+ }, {
+ name: 'measureText',
+ args: ['foobar_']
+ }, {
+ name: 'measureText',
+ args: ['foobar_1']
+ }]);
+ });
+
+ it('count look at all the labels and return maximum number of lines', function() {
+ var context = window.createMockContext();
+ var arrayOfThings_1 = ['Foo','Bar'];
+ var arrayOfThings_2 = [['Foo','Bar'],'Foo'];
+ var arrayOfThings_3 = [['Foo','Bar','Boo'],['Foo','Bar'],'Foo'];
+
+ expect(helpers.numberOfLabelLines(arrayOfThings_1)).toEqual(1);
+ expect(helpers.numberOfLabelLines(arrayOfThings_2)).toEqual(2);
+ expect(helpers.numberOfLabelLines(arrayOfThings_3)).toEqual(3);
+ });
+
it('should draw a rounded rectangle', function() {
var context = window.createMockContext();
helpers.drawRoundedRectangle(context, 10, 20, 30, 40, 5);
projects / thirdparty / Chart.js.git / commitdiff
