62 lines
1.6 KiB
JavaScript
62 lines
1.6 KiB
JavaScript
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var textHelper = require("../helper/text");
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var BoundingRect = require("../../core/BoundingRect");
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var _constant = require("../constant");
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var WILL_BE_RESTORED = _constant.WILL_BE_RESTORED;
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/**
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* Mixin for drawing text in a element bounding rect
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* @module zrender/mixin/RectText
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*/
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var tmpRect = new BoundingRect();
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var RectText = function () {};
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RectText.prototype = {
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constructor: RectText,
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/**
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* Draw text in a rect with specified position.
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* @param {CanvasRenderingContext2D} ctx
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* @param {Object} rect Displayable rect
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*/
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drawRectText: function (ctx, rect) {
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var style = this.style;
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rect = style.textRect || rect; // Optimize, avoid normalize every time.
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this.__dirty && textHelper.normalizeTextStyle(style, true);
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var text = style.text; // Convert to string
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text != null && (text += '');
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if (!textHelper.needDrawText(text, style)) {
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return;
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} // FIXME
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// Do not provide prevEl to `textHelper.renderText` for ctx prop cache,
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// but use `ctx.save()` and `ctx.restore()`. Because the cache for rect
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// text propably break the cache for its host elements.
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ctx.save(); // Transform rect to view space
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var transform = this.transform;
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if (!style.transformText) {
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if (transform) {
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tmpRect.copy(rect);
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tmpRect.applyTransform(transform);
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rect = tmpRect;
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}
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} else {
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this.setTransform(ctx);
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} // transformText and textRotation can not be used at the same time.
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textHelper.renderText(this, ctx, text, style, rect, WILL_BE_RESTORED);
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ctx.restore();
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}
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};
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var _default = RectText;
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module.exports = _default;
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