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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,238 +1,70 @@ | ||
| /** | ||
| * @module Options | ||
| */ | ||
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| 'use strict'; | ||
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| import Chart from 'chart.js'; | ||
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| var helpers = Chart.helpers; | ||
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| var formatter = function(value) { | ||
| if (helpers.isNullOrUndef(value)) { | ||
| return null; | ||
| } | ||
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| var label = value; | ||
| var keys, klen, k; | ||
| if (helpers.isObject(value)) { | ||
| if (!helpers.isNullOrUndef(value.label)) { | ||
| label = value.label; | ||
| } else if (!helpers.isNullOrUndef(value.r)) { | ||
| label = value.r; | ||
| } else { | ||
| label = ''; | ||
| keys = Object.keys(value); | ||
| for (k = 0, klen = keys.length; k < klen; ++k) { | ||
| label += (k !== 0 ? ', ' : '') + keys[k] + ': ' + value[keys[k]]; | ||
| } | ||
| } | ||
| } | ||
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| return '' + label; | ||
| }; | ||
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| /** | ||
| * IMPORTANT: make sure to also update tests and TypeScript definition | ||
| * files (`/test/specs/defaults.spec.js` and `/types/options.d.ts`) | ||
| */ | ||
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| export default { | ||
| /** | ||
| * The label box alignment relative to `anchor` that can be expressed either by a number | ||
| * representing the clockwise angle (in degree) or by one of the following string presets: | ||
| * - 'start': before the anchor point, following the same direction | ||
| * - 'end': after the anchor point, following the same direction | ||
| * - 'center': centered on the anchor point | ||
| * - 'right': 0° | ||
| * - 'bottom': 90° | ||
| * - 'left': 180° | ||
| * - 'top': 270° | ||
| * @member {String|Number|Array|Function} | ||
| * @default 'center' | ||
| */ | ||
| align: 'center', | ||
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| /** | ||
| * The label box alignment relative to the element ('start'|'center'|'end') | ||
| * @member {String|Array|Function} | ||
| * @default 'center' | ||
| */ | ||
| anchor: 'center', | ||
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| /** | ||
| * The color used to draw the background of the surrounding frame. | ||
| * @member {String|Array|Function|null} | ||
| * @default null (no background) | ||
| */ | ||
| backgroundColor: null, | ||
|
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| /** | ||
| * The color used to draw the border of the surrounding frame. | ||
| * @member {String|Array|Function|null} | ||
| * @default null (no border) | ||
| */ | ||
| borderColor: null, | ||
|
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| /** | ||
| * The border radius used to add rounded corners to the surrounding frame. | ||
| * @member {Number|Array|Function} | ||
| * @default 0 (not rounded) | ||
| */ | ||
| borderRadius: 0, | ||
|
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| /** | ||
| * The border width of the surrounding frame. | ||
| * @member {Number|Array|Function} | ||
| * @default 0 (no border) | ||
| */ | ||
| borderWidth: 0, | ||
|
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||
| /** | ||
| * When `true`, the anchor position is calculated based on the visible | ||
| * geometry of the associated element (i.e. part inside the chart area). | ||
| * @see https://github.com/chartjs/chartjs-plugin-datalabels/issues/98 | ||
| * @member {Boolean|Array|Function} | ||
| * @default false | ||
| */ | ||
| clamp: false, | ||
|
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| /** | ||
| * Clip the label drawing to the chart area. | ||
| * @member {Boolean|Array|Function} | ||
| * @default false (no clipping) | ||
| */ | ||
| clip: false, | ||
|
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| /** | ||
| * The color used to draw the label text. | ||
| * @member {String|Array|Function} | ||
| * @default undefined (use Chart.defaults.global.defaultFontColor) | ||
| */ | ||
| color: undefined, | ||
|
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| /** | ||
| * When `false`, the label is hidden and associated options are not | ||
| * calculated, else if `true`, the label is drawn. If `auto`, the | ||
| * label is automatically hidden if it appears under another label. | ||
| * @member {Boolean|String|Array|Function} | ||
| * @default true | ||
| */ | ||
| display: true, | ||
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| /** | ||
| * The font options used to draw the label text. | ||
| * @member {Object|Array|Function} | ||
| * @prop {String} font.family - defaults to Chart.defaults.global.defaultFontFamily | ||
| * @prop {Number} font.lineHeight - defaults to 1.2 | ||
| * @prop {Number} font.size - defaults to Chart.defaults.global.defaultFontSize | ||
| * @prop {String} font.style - defaults to Chart.defaults.global.defaultFontStyle | ||
| * @prop {Number} font.weight - defaults to 'normal' | ||
| * @default Chart.defaults.global.defaultFont.* | ||
| */ | ||
| font: { | ||
| family: undefined, | ||
| lineHeight: 1.2, | ||
| size: undefined, | ||
| style: undefined, | ||
| weight: null | ||
| }, | ||
|
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||
| /** | ||
| * Allows to customize the label text by transforming input data. | ||
| * @member {Function|null} | ||
| * @prop {*} value - The data value | ||
| * @prop {Object} context - The function unique argument: | ||
| * @prop {Chart} context.chart - The current chart | ||
| * @prop {Number} context.dataIndex - Index of the current data | ||
| * @prop {Object} context.dataset - The current dataset | ||
| * @prop {Number} context.datasetIndex - Index of the current dataset | ||
| * @default data[index] | ||
| */ | ||
| formatter: function(value) { | ||
| if (helpers.isNullOrUndef(value)) { | ||
| return null; | ||
| } | ||
|
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||
| var label = value; | ||
| var keys, klen, k; | ||
| if (helpers.isObject(value)) { | ||
| if (!helpers.isNullOrUndef(value.label)) { | ||
| label = value.label; | ||
| } else if (!helpers.isNullOrUndef(value.r)) { | ||
| label = value.r; | ||
| } else { | ||
| label = ''; | ||
| keys = Object.keys(value); | ||
| for (k = 0, klen = keys.length; k < klen; ++k) { | ||
| label += (k !== 0 ? ', ' : '') + keys[k] + ': ' + value[keys[k]]; | ||
| } | ||
| } | ||
| } | ||
| return '' + label; | ||
| }, | ||
|
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||
| /** | ||
| * Event listeners, where the property is the type of the event to listen and the value | ||
| * a callback with a unique `context` argument containing the same information as for | ||
| * scriptable options. If a callback explicitly returns `true`, the label is updated | ||
| * with the current context and the chart re-rendered. This allows to implement visual | ||
| * interactions with labels such as highlight, selection, etc. | ||
| * | ||
| * Event currently supported are: | ||
| * - 'click': a mouse click is detected within a label | ||
| * - 'enter': the mouse enters a label | ||
| * - 'leave': the mouse leaves a label | ||
| * | ||
| * @member {Object} | ||
| * @default {} | ||
| */ | ||
| formatter: formatter, | ||
| listeners: {}, | ||
|
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| /** | ||
| * The distance (in pixels) to pull the label away from the anchor point, the direction | ||
| * being determined by the `align` value (only applicable if `align` is `start` or `end`). | ||
| * @member {Number|Array|Function} | ||
| * @default 4 | ||
| */ | ||
| offset: 4, | ||
|
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| /** | ||
| * The label global opacity, including the text, background, borders, etc., specified as | ||
| * a number between 0.0 (fully transparent) and 1.0 (fully opaque). | ||
| * https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/globalAlpha | ||
| * @member {Number|Array|Function} | ||
| * @default 1 | ||
| */ | ||
| opacity: 1, | ||
|
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| /** | ||
| * The padding (in pixels) to apply between the text and the surrounding frame. | ||
| * @member {Number|Object|Array|Function} | ||
| * @prop {Number} padding.top - Space above the text. | ||
| * @prop {Number} padding.right - Space on the right of the text. | ||
| * @prop {Number} padding.bottom - Space below the text. | ||
| * @prop {Number} padding.left - Space on the left of the text. | ||
| * @default 4 (all values) | ||
| */ | ||
| padding: { | ||
| top: 4, | ||
| right: 4, | ||
| bottom: 4, | ||
| left: 4 | ||
| }, | ||
|
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| /** | ||
| * Clockwise rotation of the label relative to its center. | ||
| * @member {Number|Array|Function} | ||
| * @default 0 | ||
| */ | ||
| rotation: 0, | ||
|
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| /** | ||
| * Text alignment for multi-lines labels ('left'|'right'|'start'|'center'|'end'). | ||
| * @member {String|Array|Function} | ||
| * @default 'start' | ||
| */ | ||
| textAlign: 'start', | ||
|
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| /** | ||
| * The stroke color used to draw the label text. If this options is | ||
| * not set (default), the value of the `color` option will be used. | ||
| * @member {String|Array|Function|null} | ||
| * @default color | ||
| */ | ||
| textStrokeColor: undefined, | ||
|
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| /** | ||
| * The width of the stroke for the label text. | ||
| * @member {Number|Array|Function} | ||
| * @default 0 (no stroke) | ||
| */ | ||
| textStrokeWidth: 0, | ||
|
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| /** | ||
| * The amount of blur applied to shadow under the label text. | ||
| * @member {Number|Array|Function} | ||
| * @default 0 (no shadow) | ||
| */ | ||
| textShadowBlur: 0, | ||
|
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| /** | ||
| * The color of the shadow under the label text. | ||
| * @member {String|Array|Function|null} | ||
| * @default `color` | ||
| */ | ||
| textShadowColor: undefined, | ||
| textShadowColor: undefined | ||
| }; |
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