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module.exports = (function() {
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var __MODS__ = {};
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var __DEFINE__ = function(modId, func, req) { var m = { exports: {}, _tempexports: {} }; __MODS__[modId] = { status: 0, func: func, req: req, m: m }; };
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var __REQUIRE__ = function(modId, source) { if(!__MODS__[modId]) return require(source); if(!__MODS__[modId].status) { var m = __MODS__[modId].m; m._exports = m._tempexports; var desp = Object.getOwnPropertyDescriptor(m, "exports"); if (desp && desp.configurable) Object.defineProperty(m, "exports", { set: function (val) { if(typeof val === "object" && val !== m._exports) { m._exports.__proto__ = val.__proto__; Object.keys(val).forEach(function (k) { m._exports[k] = val[k]; }); } m._tempexports = val }, get: function () { return m._tempexports; } }); __MODS__[modId].status = 1; __MODS__[modId].func(__MODS__[modId].req, m, m.exports); } return __MODS__[modId].m.exports; };
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var __REQUIRE_WILDCARD__ = function(obj) { if(obj && obj.__esModule) { return obj; } else { var newObj = {}; if(obj != null) { for(var k in obj) { if (Object.prototype.hasOwnProperty.call(obj, k)) newObj[k] = obj[k]; } } newObj.default = obj; return newObj; } };
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var __REQUIRE_DEFAULT__ = function(obj) { return obj && obj.__esModule ? obj.default : obj; };
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__DEFINE__(1689036503191, function(require, module, exports) {
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var __TEMP__ = require('./src/index');var Wxml2Canvas = __REQUIRE_DEFAULT__(__TEMP__);
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if (!exports.__esModule) Object.defineProperty(exports, "__esModule", { value: true });exports.default = Wxml2Canvas;
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}, function(modId) {var map = {"./src/index":1689036503192}; return __REQUIRE__(map[modId], modId); })
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__DEFINE__(1689036503192, function(require, module, exports) {
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var __TEMP__ = require('./util');var Util = __REQUIRE_DEFAULT__(__TEMP__);
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const imageMode = ['scaleToFill', 'aspectFit', 'aspectFill', 'widthFix', 'top', 'bottom', 'center', 'left', 'right', 'top left', 'top right', 'bottom left', 'bottom right']
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class Wxml2Canvas {
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constructor (options = {}) {
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this.device = wx.getSystemInfoSync && wx.getSystemInfoSync() || {};
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if (!options.zoom) {
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this.zoom = this.device.windowWidth / 375;
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} else {
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this.zoom = options.zoom || 1;
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}
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this.element = options.element;
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this.object = options.obj;
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this.width = options.width * this.zoom || 0;
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this.height = options.height * this.zoom || 0;
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this.destZoom = options.destZoom || 3;
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this.destWidth = this.width * this.destZoom;
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this.destHeight = this.height * this.destZoom;
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this.translateX = options.translateX * this.zoom || 0;
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this.translateY = options.translateY * this.zoom || 0;
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this.gradientBackground = options.gradientBackground || null;
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this.background = options.background || '#ffffff';
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this.finishDraw = options.finish || function finish(params) {}
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this.errorHandler = options.error || function error(params) {}
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this.progress = options.progress || function progress(params) {}
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this.textAlign = options.textAlign || 'left';
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this.fullText = options.fullText || false;
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this.font = options.font || '14px PingFang SC';
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this._init();
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}
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draw (data = {}, that) {
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let self = this;
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this.data = data;
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this.fef = that;
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this.progress(10);
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this._preloadImage(data.list).then((result) => {
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this.progress(30);
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self._draw();
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}).catch((res) => {
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self.errorHandler(res);
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})
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}
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measureWidth (text, font) {
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if(font) {
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this.ctx.font = font;
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}
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let res = this.ctx.measureText(text) || {};
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return res.width || 0;
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}
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_init () {
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this.progressPercent = 0; // 绘制进度百分比
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this.data = null;
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this.ref = null;
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this.allPic = [];
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this.screenList = [];
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this.asyncList = [];
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this.imgUrl = '';
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this.progressPercent = 0;
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this.distance = 0;
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this.progress(0);
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this.ctx = wx.createCanvasContext(this.element, this.obj);
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this.ctx.font = this.font;
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this.ctx.setTextBaseline('top');
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this.ctx.setStrokeStyle('white');
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this.debug = this.device.platform === 'devtools' ? true : false;
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this._drawBakcground();
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}
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_drawBakcground () {
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if (this.gradientBackground) {
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let line = this.gradientBackground.line || [0, 0, 0, this.height];
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let color = this.gradientBackground.color || ['#fff', '#fff'];
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let style = { fill: { line, color } }
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this._drawRectToCanvas(0, 0, this.width, this.height, style);
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} else {
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let style = { fill: this.background }
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this._drawRectToCanvas(0, 0, this.width, this.height, style);
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}
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}
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_draw () {
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let self = this;
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let list = this.data.list || [];
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let index = 0;
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let all = [];
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let count = 0;
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list.forEach(item => {
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if(item.type === 'wxml') {
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count += 3;
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} else {
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count += 1;
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}
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})
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this.distance = 60 / (count || 1); // 进度条的间距
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this.progressPercent = 30;
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this.asyncList = list.filter( item => item.delay == true );
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list = list.filter( item => item.delay != true );
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drawList(list);
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Promise.all(all).then(results => {
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index = 0;
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drawList(self.asyncList, true);
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Promise.all(all).then(results => {
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self.progress(90);
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self._saveCanvasToImage();
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});
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}).catch (e => {
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console.log(e)
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self.errorHandler(e);
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});
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function drawList(list = [], noDelay) {
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list.forEach((item, i) => {
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all[index++] = new Promise((resolve, reject) => {
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let attr = item.style;
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item.progress = self.distance;
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if (noDelay) {
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item.delay = 0;
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}
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if (item.type === 'radius-image') {
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self._drawCircle(item, attr, resolve, reject, 'image');
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} else if (item.type === 'text') {
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self._drawText(item, attr, resolve, reject);
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} else if (item.type === 'line') {
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self._drawLine(item, attr, resolve, reject);
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} else if (item.type === 'circle') {
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self._drawCircle(item, attr, resolve, reject);
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} else if (item.type === 'rect') {
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self._drawRect(item, attr, resolve, reject);
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} else if (item.type === 'image') {
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self._drawRect(item, attr, resolve, reject, 'image');
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} else if (item.type === 'wxml') {
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self._drawWxml(item, attr, resolve, reject);
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}else {
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resolve();
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}
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});
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});
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}
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}
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_saveCanvasToImage () {
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let self = this;
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// 延时保存有两个原因，一个是等待绘制delay的元素，另一个是安卓上样式会错乱
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setTimeout(() => {
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self.progress(95);
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let obj = {
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x: 0,
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y: 0,
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width: self.width,
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height: self.height,
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canvasId: self.element,
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success: function (res) {
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self.progress(100);
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self.imgUrl = res.tempFilePath;
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self.finishDraw(self.imgUrl);
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},
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fail: function (res) {
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self.errorHandler({errcode: 1000, errmsg: 'save canvas error', e: res});
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}
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}
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if(self.destZoom !== 3) {
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obj.destWidth = self.destWidth;
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obj.destHeight = self.destHeight;
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}
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wx.canvasToTempFilePath(obj, self.object);
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}, self.device.system.indexOf('iOS') === -1 ? 300 : 100);
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}
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_preloadImage (list = []) {
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let self = this;
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let all = [];
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let count = 0;
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list.forEach((item, i) => {
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if (item.url && self._findPicIndex(item.url) === -1) {
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// 避免重复下载同一图片
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self.allPic.push({
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url: item.url,
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local: ''
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});
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all[count++] = new Promise((resolve, reject) => {
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// 非http(s)域名的就不下载了
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if (!/^http/.test(item.url) || /^http:\/\/(tmp)|(usr)\//.test(item.url) || /^http:\/\/127\.0\.0\.1/.test(item.url)) {
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if(item.isBase64) {
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let fileManager = wx.getFileSystemManager();
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fileManager.writeFile({
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filePath: item.url,
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data: item.isBase64.replace(/data:image\/(.*);base64,/, ''),
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encoding: 'base64',
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success (res) {
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imageInfo(item.url);
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},
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fail (res) {
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reject(res);
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},
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})
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}else {
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imageInfo(item.url);
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}
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function imageInfo (url) {
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wx.getImageInfo({
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src: url,
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success (res) {
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let index = self._findPicIndex(url);
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if(index > -1) {
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self.allPic[index].local = url;
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self.allPic[index].width = res.width;
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self.allPic[index].height = res.height;
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}
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resolve({ tempFilePath: url });
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},
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fail (res) {
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reject(res);
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}
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})
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}
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} else {
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wx.downloadFile({
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|
url: item.url.replace(/^https?/, 'https'),
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success: function (res) {
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wx.getImageInfo({
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src: res.tempFilePath,
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success (img) {
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let index = self._findPicIndex(item.url);
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if (index > -1) {
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self.allPic[index].local = res.tempFilePath;
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self.allPic[index].width = img.width;
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self.allPic[index].height = img.height;
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}
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resolve(res);
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},
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fail (res) {
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reject(res);
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}
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})
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},
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fail: (res) => {
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reject({errcode: 1001, errmsg: 'download pic error'});
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}
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})
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}
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})
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}
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});
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|
|
return Promise.all(all).then(results => {
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|
return new Promise(resolve => { resolve() })
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|
}).catch((results) => {
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|
return new Promise((resolve, reject) => { reject(results) })
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})
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}
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_findPicIndex (url) {
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let index = this.allPic.findIndex(pic => pic.url === url);
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return index;
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}
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_drawRect (item, style, resolve, reject, isImage, isWxml) {
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let zoom = this.zoom;
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let leftOffset = 0;
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let topOffset = 0;
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let width = style.width;
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let height = style.height;
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let imgWidth = style.width;
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let imgHeight = style.height;
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let mode = null;
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try {
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item.x = this._resetPositionX(item, style);
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item.y = this._resetPositionY(item, style);
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let url;
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if(isImage) {
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let index = this._findPicIndex(item.url);
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if(index > -1) {
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url = this.allPic[index].local
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imgWidth = this.allPic[index].width
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imgHeight = this.allPic[index].height
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}else {
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url = item.url;
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}
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}
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style.padding = style.padding || [];
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|
if(isWxml === 'inline-wxml') {
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item.x = item.x + (style.padding[3] && style.padding[3] || 0)
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item.y = item.y + (style.padding[0] && style.padding[0] || 0)
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}
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leftOffset = item.x + style.width + (style.padding[1] && style.padding[1] || 0);
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|
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if(!isWxml) {
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width = width * zoom;
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height = height * zoom;
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}
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|
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if(style.dataset && style.dataset.mode && imageMode.indexOf(style.dataset.mode) > -1) {
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mode = {
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type: style.dataset.mode,
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width: imgWidth,
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height: imgHeight
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};
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}
|
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this._drawRectToCanvas(item.x, item.y, width, height, style, url, mode);
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this._updateProgress(item.progress);
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if(resolve) {
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resolve();
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|
}else {
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return {
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leftOffset,
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topOffset
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}
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}
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} catch (e) {
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reject && reject({ errcode: (isImage ? 1003 : 1002), errmsg: (isImage ? 'drawImage error' : 'drawRect error'), e });
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|
}
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}
|
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_drawRectToCanvas (x, y, width, height, style, url, mode) {
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let { fill, border, boxShadow } = style;
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this.ctx.save();
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this._drawBoxShadow(boxShadow, (res) => {
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// 真机上填充渐变色时，没有阴影，先画个相等大小的纯色矩形来实现阴影
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|
|
if(fill && typeof fill !== 'string' && !this.debug) {
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|
|
this.ctx.setFillStyle(res.color || '#ffffff');
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|
this.ctx.fillRect(x, y, width, height);
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|
}
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|
});
|
|
|
|
|
|
if(url) {
|
|
|
// 开发者工具有bug，先不裁剪
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|
|
if(mode) {
|
|
|
this._resetImageByMode(url, x, y, width, height, mode);
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|
|
}else {
|
|
|
this.ctx.drawImage(url, x, y, width, height)
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|
}
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|
}else {
|
|
|
this._setFill(fill, () => {
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|
this.ctx.fillRect(x, y, width, height);
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|
|
});
|
|
|
}
|
|
|
|
|
|
this._drawBorder(border, style, (border) => {
|
|
|
let fixBorder = border.width;
|
|
|
this.ctx.strokeRect(x - fixBorder / 2, y - fixBorder / 2, width + fixBorder, height + fixBorder);
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|
|
});
|
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|
|
|
|
this.ctx.draw(true);
|
|
|
this.ctx.restore();
|
|
|
}
|
|
|
|
|
|
_resetImageByMode (url, x, y, width, height, mode) {
|
|
|
let self = this;
|
|
|
let offsetX = 0;
|
|
|
let offsetY = 0;
|
|
|
let imgWidth = mode.width;
|
|
|
let imgHeight = mode.height;
|
|
|
|
|
|
switch (mode.type) {
|
|
|
case 'scaleToFill':
|
|
|
imgWidth = width;
|
|
|
imgHeight = height;
|
|
|
self.ctx.drawImage(url, x, y, width, height)
|
|
|
break;
|
|
|
case 'widthFix':
|
|
|
height = width / ((imgWidth || 1) / (imgHeight || 1))
|
|
|
self.ctx.drawImage(url, x, y, width, height)
|
|
|
break;
|
|
|
case 'aspectFit':
|
|
|
if(imgWidth > imgHeight) {
|
|
|
let realHeight = width / ((imgWidth || 1) / (imgHeight || 1))
|
|
|
offsetY = -(height - realHeight) / 2
|
|
|
imgWidth = width;
|
|
|
imgHeight = realHeight;
|
|
|
}else {
|
|
|
let realWidth = height / ((imgHeight || 1) / (imgWidth || 1))
|
|
|
offsetX = -(width - realWidth) / 2
|
|
|
imgWidth = realWidth;
|
|
|
imgHeight = height;
|
|
|
}
|
|
|
|
|
|
_clip();
|
|
|
break;
|
|
|
case 'aspectFill':
|
|
|
if(imgWidth > imgHeight) {
|
|
|
let realWidth = imgWidth / ((imgHeight || 1) / (height || 1))
|
|
|
offsetX = (realWidth - width) / 2
|
|
|
imgWidth = realWidth;
|
|
|
imgHeight = height;
|
|
|
}else {
|
|
|
let realHeight = imgHeight / ((imgWidth || 1) / (width || 1))
|
|
|
offsetY = (realHeight - height) / 2
|
|
|
imgWidth = width;
|
|
|
imgHeight = realHeight;
|
|
|
}
|
|
|
|
|
|
_clip();
|
|
|
break;
|
|
|
case 'top left':
|
|
|
_clip();
|
|
|
break;
|
|
|
case 'top':
|
|
|
offsetX = (mode.width - width) / 2;
|
|
|
_clip();
|
|
|
break;
|
|
|
case 'top right':
|
|
|
offsetX = (mode.width - width);
|
|
|
_clip();
|
|
|
break;
|
|
|
case 'left':
|
|
|
offsetY = (mode.height - height) / 2;
|
|
|
_clip();
|
|
|
break;
|
|
|
case 'center':
|
|
|
offsetX = (mode.width - width) / 2;
|
|
|
offsetY = (mode.height - height) / 2;
|
|
|
_clip();
|
|
|
break;
|
|
|
case 'right':
|
|
|
offsetX = (mode.width - width);
|
|
|
offsetY = (mode.height - height) / 2;
|
|
|
_clip();
|
|
|
break;
|
|
|
case 'bottom left':
|
|
|
offsetY = (mode.height - height)
|
|
|
_clip();
|
|
|
break;
|
|
|
case 'bottom':
|
|
|
offsetX = (mode.width - width) / 2;
|
|
|
offsetY = (mode.height - height)
|
|
|
_clip();
|
|
|
break;
|
|
|
case 'bottom right':
|
|
|
offsetX = (mode.width - width);
|
|
|
offsetY = (mode.height - height)
|
|
|
_clip();
|
|
|
break;
|
|
|
default:
|
|
|
imgWidth = width;
|
|
|
imgHeight = height;
|
|
|
break;
|
|
|
}
|
|
|
|
|
|
function _clip () {
|
|
|
self.ctx.save();
|
|
|
self.ctx.beginPath()
|
|
|
self.ctx.rect(x, y, width, height)
|
|
|
self.ctx.clip();
|
|
|
self.ctx.drawImage(url, x - offsetX, y - offsetY, imgWidth, imgHeight)
|
|
|
self.ctx.closePath();
|
|
|
self.ctx.restore();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
_drawText (item, style, resolve, reject, type, isWxml) {
|
|
|
let zoom = this.zoom;
|
|
|
let leftOffset = 0;
|
|
|
let topOffset = 0;
|
|
|
|
|
|
try {
|
|
|
style.fontSize = this._parseNumber(style.fontSize);
|
|
|
let fontSize = Math.ceil((style.fontSize || 14) * zoom)
|
|
|
this.ctx.setTextBaseline('top');
|
|
|
this.ctx.font = (`${style.fontWeight ? (style.fontWeight) : 'normal'} ${ fontSize }px ${ style.fontFamily || 'PingFang SC' }`);
|
|
|
this.ctx.setFillStyle(style.color || '#454545');
|
|
|
|
|
|
let text = item.text || '';
|
|
|
let textWidth = Math.floor(this.measureWidth(text, style.font || this.ctx.font));
|
|
|
let lineHeight = this._getLineHeight(style);
|
|
|
let textHeight = Math.ceil(textWidth / (style.width || textWidth)) * lineHeight;
|
|
|
let width = Math.ceil((style.width || textWidth) * (!isWxml ? zoom : 1));
|
|
|
let whiteSpace = style.whiteSpace || 'wrap';
|
|
|
let x = 0;
|
|
|
let y = 0;
|
|
|
|
|
|
if(typeof style.padding === 'string') {
|
|
|
style.padding = Util.transferPadding(style.padding);
|
|
|
}
|
|
|
item.x = this._resetPositionX(item, style);
|
|
|
item.y = this._resetPositionY(item, style, textHeight);
|
|
|
this._drawBoxShadow(style.boxShadow);
|
|
|
|
|
|
if(style.background || style.border) {
|
|
|
this._drawTextBackgroud(item, style, textWidth, textHeight, isWxml);
|
|
|
}
|
|
|
|
|
|
// 行内文本
|
|
|
if(type === 'inline-text') {
|
|
|
width = item.maxWidth;
|
|
|
if(item.leftOffset + textWidth > width) {
|
|
|
// 如果上一个行内元素换行了，这个元素要继续在后面补足一行
|
|
|
let lineNum = Math.max(Math.floor(textWidth / width), 1);
|
|
|
let length = text.length;
|
|
|
let singleLength = Math.floor(length / lineNum);
|
|
|
let widthOffset = item.leftOffset ? item.leftOffset - item.originX : 0;
|
|
|
let { endIndex: currentIndex, single, singleWidth } = this._getTextSingleLine(text, width, singleLength, 0, widthOffset)
|
|
|
x = this._resetTextPositionX(item, style, singleWidth);
|
|
|
y = this._resetTextPositionY(item, style);
|
|
|
this.ctx.fillText(single, x, y);
|
|
|
leftOffset = x + singleWidth;
|
|
|
topOffset = y;
|
|
|
|
|
|
// 去除第一行补的内容，然后重置
|
|
|
text = text.substring(currentIndex, text.length);
|
|
|
currentIndex = 0;
|
|
|
lineNum = Math.max(Math.floor(textWidth / width), 1);
|
|
|
textWidth = Math.floor(this.measureWidth(text, style.font || this.ctx.font));
|
|
|
item.x = item.originX; // 还原换行后的x
|
|
|
for (let i = 0; i < lineNum; i++) {
|
|
|
let { endIndex, single, singleWidth } = this._getTextSingleLine(text, width, singleLength, currentIndex);
|
|
|
currentIndex = endIndex;
|
|
|
if(single) {
|
|
|
x = this._resetTextPositionX(item, style, singleWidth, width);
|
|
|
y = this._resetTextPositionY(item, style, i + 1);
|
|
|
this.ctx.fillText(single, x, y);
|
|
|
if(i === lineNum - 1) {
|
|
|
leftOffset = x + singleWidth;
|
|
|
topOffset = lineHeight * lineNum;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
let last = text.substring(currentIndex, length);
|
|
|
let lastWidth = this.measureWidth(last);
|
|
|
|
|
|
if(last) {
|
|
|
x = this._resetTextPositionX(item, style, lastWidth, width);
|
|
|
y = this._resetTextPositionY(item, style, lineNum + 1);
|
|
|
this.ctx.fillText(last, x, y);
|
|
|
leftOffset = x + lastWidth;
|
|
|
topOffset = lineHeight * (lineNum + 1);
|
|
|
}
|
|
|
}else {
|
|
|
x = this._resetTextPositionX(item, style, textWidth, width);
|
|
|
y = this._resetTextPositionY(item, style);
|
|
|
this.ctx.fillText(item.text, x, y);
|
|
|
leftOffset = x + textWidth;
|
|
|
topOffset = lineHeight;
|
|
|
}
|
|
|
}else {
|
|
|
// block文本，如果文本长度超过宽度换行
|
|
|
if (width && textWidth > width && whiteSpace !== 'nowrap') {
|
|
|
let lineNum = Math.max(Math.floor(textWidth / width), 1);
|
|
|
let length = text.length;
|
|
|
let singleLength = Math.floor(length / lineNum);
|
|
|
let currentIndex = 0;
|
|
|
|
|
|
// lineClamp参数限制最多行数
|
|
|
if (style.lineClamp && lineNum + 1 > style.lineClamp) {
|
|
|
lineNum = style.lineClamp - 1;
|
|
|
}
|
|
|
|
|
|
for (let i = 0; i < lineNum; i++) {
|
|
|
let { endIndex, single, singleWidth } = this._getTextSingleLine(text, width, singleLength, currentIndex);
|
|
|
currentIndex = endIndex;
|
|
|
x = this._resetTextPositionX(item, style, singleWidth, width);
|
|
|
y = this._resetTextPositionY(item, style, i);
|
|
|
this.ctx.fillText(single, x, y);
|
|
|
|
|
|
}
|
|
|
|
|
|
// 换行后剩余的文字，超过一行则截断增加省略号
|
|
|
let last = text.substring(currentIndex, length);
|
|
|
let lastWidth = this.measureWidth(last);
|
|
|
if(lastWidth > width) {
|
|
|
let { single, singleWidth } = this._getTextSingleLine(last, width, singleLength);
|
|
|
lastWidth = singleWidth;
|
|
|
last = single.substring(0, single.length - 1) + '...';
|
|
|
}
|
|
|
|
|
|
x = this._resetTextPositionX(item, style, lastWidth, width);
|
|
|
y = this._resetTextPositionY(item, style, lineNum);
|
|
|
this.ctx.fillText(last, x, y);
|
|
|
|
|
|
}else {
|
|
|
x = this._resetTextPositionX(item, style, textWidth, width);
|
|
|
y = this._resetTextPositionY(item, style);
|
|
|
this.ctx.fillText(item.text, x, y);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
this.ctx.draw(true);
|
|
|
|
|
|
this._updateProgress(item.progress);
|
|
|
|
|
|
if(resolve) {
|
|
|
resolve();
|
|
|
}else {
|
|
|
return {
|
|
|
leftOffset,
|
|
|
topOffset
|
|
|
}
|
|
|
}
|
|
|
} catch(e) {
|
|
|
reject && reject({ errcode: 1004, errmsg: 'drawText error', e: e });
|
|
|
}
|
|
|
}
|
|
|
|
|
|
_drawTextBackgroud (item, style, textWidth, textHeight, isWxml) {
|
|
|
if(!style.width) return;
|
|
|
let zoom = isWxml ? 1 : this.zoom;
|
|
|
let width = style.width || textWidth;
|
|
|
let height = style.height || textHeight;
|
|
|
let rectStyle = {
|
|
|
fill: style.background,
|
|
|
border: style.border
|
|
|
}
|
|
|
style.padding = style.padding || [0, 0, 0, 0];
|
|
|
width += (style.padding[1] || 0) + (style.padding[3] || 0);
|
|
|
height += (style.padding[0] || 0) + (style.padding[2] || 0);
|
|
|
width = width * zoom
|
|
|
height = height * zoom
|
|
|
this._drawRectToCanvas(item.x, item.y, width, height, rectStyle);
|
|
|
}
|
|
|
|
|
|
_drawCircle (item, style, resolve, reject, isImage, isWxml) {
|
|
|
let zoom = this.zoom;
|
|
|
let r = style.r;
|
|
|
try {
|
|
|
|
|
|
item.x = this._resetPositionX(item, style);
|
|
|
item.y = this._resetPositionY(item, style);
|
|
|
|
|
|
let url;
|
|
|
if(isImage) {
|
|
|
let index = this._findPicIndex(item.url);
|
|
|
if (index > -1) {
|
|
|
url = this.allPic[index].local;
|
|
|
} else {
|
|
|
url = item.url;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if(!isWxml) {
|
|
|
r = r * zoom;
|
|
|
}
|
|
|
|
|
|
this._drawCircleToCanvas(item.x, item.y, r, style, url);
|
|
|
|
|
|
this._updateProgress(item.progress);
|
|
|
resolve && resolve();
|
|
|
} catch (e) {
|
|
|
reject && reject({ errcode: (isImage ? 1006 : 1005), errmsg: (isImage ? 'drawCircleImage error' : 'drawCircle error'), e });
|
|
|
}
|
|
|
}
|
|
|
|
|
|
_drawCircleToCanvas (x, y, r, style, url) {
|
|
|
let { fill, border, boxShadow } = style;
|
|
|
|
|
|
this.ctx.save();
|
|
|
|
|
|
this._drawBoxShadow(boxShadow, (res) => {
|
|
|
// 真机上填充渐变色时，没有阴影，先画个相等大小的纯色矩形来实现阴影
|
|
|
if((fill && typeof fill !== 'string') || (url && res.color)) {
|
|
|
this.ctx.setFillStyle(res.color || '#ffffff');
|
|
|
this.ctx.beginPath();
|
|
|
this.ctx.arc(x + r, y + r, r, 0, 2 * Math.PI);
|
|
|
this.ctx.closePath();
|
|
|
this.ctx.fill();
|
|
|
}
|
|
|
});
|
|
|
|
|
|
if(url) {
|
|
|
this.ctx.save();
|
|
|
this.ctx.beginPath();
|
|
|
this.ctx.arc(x + r, y + r, r, 0, 2 * Math.PI);
|
|
|
this.ctx.clip();
|
|
|
this.ctx.drawImage(url, x, y, r * 2, r * 2);
|
|
|
this.ctx.closePath();
|
|
|
this.ctx.restore();
|
|
|
}else {
|
|
|
this._setFill(fill, () => {
|
|
|
this.ctx.beginPath();
|
|
|
this.ctx.arc(x + r, y + r, r, 0, 2 * Math.PI);
|
|
|
this.ctx.closePath();
|
|
|
this.ctx.fill();
|
|
|
});
|
|
|
}
|
|
|
|
|
|
this._drawBorder(border, style, (border) => {
|
|
|
this.ctx.beginPath()
|
|
|
this.ctx.arc(x + r, y + r, r + border.width / 2, 0, 2 * Math.PI)
|
|
|
this.ctx.stroke()
|
|
|
this.ctx.closePath();
|
|
|
});
|
|
|
|
|
|
this.ctx.draw(true);
|
|
|
this.ctx.restore();
|
|
|
}
|
|
|
|
|
|
_drawLine (item, style, resolve, reject, isWxml) {
|
|
|
let zoom = this.zoom;
|
|
|
try {
|
|
|
let x1 = item.x * zoom + this.translateX;
|
|
|
let y1 = item.y * zoom + this.translateY;
|
|
|
let x2 = item.x2 * zoom + this.translateX;
|
|
|
let y2 = item.y2 * zoom + this.translateY;
|
|
|
this._drawLineToCanvas(x1, y1, x2, y2, style);
|
|
|
|
|
|
this._updateProgress(item.progress);
|
|
|
resolve && resolve();
|
|
|
} catch (e) {
|
|
|
reject && reject({ errcode: 1007, errmsg: 'drawLine error', e });
|
|
|
}
|
|
|
}
|
|
|
|
|
|
_drawLineToCanvas (x1, y1, x2, y2, style) {
|
|
|
let { stroke, dash, boxShadow } = style;
|
|
|
|
|
|
this.ctx.save();
|
|
|
if(stroke) {
|
|
|
this._setStroke(stroke);
|
|
|
}
|
|
|
|
|
|
this._drawBoxShadow(boxShadow);
|
|
|
|
|
|
if(dash) {
|
|
|
let dash = [style.dash[0] || 5, style.dash[1] || 5];
|
|
|
let offset = style.dash[2] || 0;
|
|
|
this.ctx.setLineDash(dash, offset || 0);
|
|
|
}
|
|
|
|
|
|
this.ctx.moveTo(x1, y1);
|
|
|
this.ctx.setLineWidth((style.width || 1) * this.zoom);
|
|
|
this.ctx.lineTo(x2, y2);
|
|
|
this.ctx.stroke();
|
|
|
this.ctx.draw(true);
|
|
|
this.ctx.restore();
|
|
|
}
|
|
|
|
|
|
// 废弃，合并到_drawRect
|
|
|
_drawImage (item, style, resolve, reject, isWxml) {
|
|
|
let zoom = this.zoom;
|
|
|
try {
|
|
|
|
|
|
item.x = this._resetPositionX(item, style);
|
|
|
item.y = this._resetPositionY(item, style);
|
|
|
item.x = item.x + (style.padding[3] || 0);
|
|
|
item.y = item.y + (style.padding[0] || 0);
|
|
|
|
|
|
let index = this._findPicIndex(item.url);
|
|
|
let url = index > -1 ? this.allPic[index].local : item.url;
|
|
|
this._drawImageToCanvas(url, item.x, item.y, style.width * zoom, style.height * zoom, style);
|
|
|
|
|
|
this._updateProgress(item.progress);
|
|
|
resolve && resolve();
|
|
|
} catch (e) {
|
|
|
reject && reject({ errcode: 1012, errmsg: 'drawRect error', e });
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// 废弃，合并到_drawRect
|
|
|
_drawImageToCanvas (url, x, y, width, height, style) {
|
|
|
let { fill, border, boxShadow } = style;
|
|
|
this.ctx.save();
|
|
|
|
|
|
this._drawBoxShadow(boxShadow);
|
|
|
this.ctx.drawImage(url, x, y, width, height);
|
|
|
|
|
|
this._drawBorder(border, style, (border) => {
|
|
|
let fixBorder = border.width;
|
|
|
this.ctx.strokeRect(x - fixBorder / 2, y - fixBorder / 2, width + fixBorder, height + fixBorder);
|
|
|
});
|
|
|
this.ctx.draw(true);
|
|
|
this.ctx.restore();
|
|
|
}
|
|
|
|
|
|
_drawWxml (item, style, resolve, reject) {
|
|
|
let self = this;
|
|
|
let all = [];
|
|
|
try {
|
|
|
this._getWxml(item, style).then((results) => {
|
|
|
|
|
|
// 上 -> 下
|
|
|
let sorted = self._sortListByTop(results[0]);
|
|
|
let count = 0;
|
|
|
let progress = 0;
|
|
|
Object.keys(sorted).forEach(item => {
|
|
|
count += sorted[item].length;
|
|
|
})
|
|
|
progress = this.distance * 3 / (count || 1);
|
|
|
|
|
|
all = this._drawWxmlBlock(item, sorted, all, progress, results[1]);
|
|
|
all = this._drawWxmlInline(item, sorted, all, progress, results[1]);
|
|
|
|
|
|
Promise.all(all).then(results => {
|
|
|
resolve && resolve();
|
|
|
}).catch (e => {
|
|
|
reject && reject(e);
|
|
|
});
|
|
|
});
|
|
|
} catch (e) {
|
|
|
reject && reject({ errcode: 1008, errmsg: 'drawWxml error' });
|
|
|
}
|
|
|
}
|
|
|
|
|
|
_drawWxmlBlock (item, sorted, all, progress, results) {
|
|
|
let self = this;
|
|
|
// 用来限定位置范围，取相对位置
|
|
|
let limitLeft = (results ? results.left : 0);
|
|
|
let limitTop = (results ? results.top : 0);
|
|
|
Object.keys(sorted).forEach((top, topIndex) => {
|
|
|
// 左 -> 右
|
|
|
let list = sorted[top].sort((a, b) => {
|
|
|
return (a.left - b.left);
|
|
|
});
|
|
|
|
|
|
list = list.filter(sub => sub.dataset.type && sub.dataset.type.indexOf('inline') === -1);
|
|
|
|
|
|
list.forEach((sub, index) => {
|
|
|
all[index] = new Promise((resolve2, reject2) => {
|
|
|
sub = self._transferWxmlStyle(sub, item, limitLeft, limitTop);
|
|
|
sub.progress = progress;
|
|
|
let type = sub.dataset.type;
|
|
|
if(sub.dataset.delay) {
|
|
|
setTimeout(() => {
|
|
|
drawWxmlItem();
|
|
|
}, sub.dataset.delay)
|
|
|
} else {
|
|
|
drawWxmlItem();
|
|
|
}
|
|
|
function drawWxmlItem () {
|
|
|
if (type === 'text') {
|
|
|
self._drawWxmlText(sub, resolve2, reject2);
|
|
|
} else if (type === 'image') {
|
|
|
self._drawWxmlImage(sub, resolve2, reject2);
|
|
|
} else if (type === 'radius-image') {
|
|
|
self._drawWxmlCircleImage(sub, resolve2, reject2);
|
|
|
} else if (type === 'background-image') {
|
|
|
self._drawWxmlBackgroundImage(sub, resolve2, reject2);
|
|
|
}
|
|
|
}
|
|
|
});
|
|
|
});
|
|
|
});
|
|
|
|
|
|
return all;
|
|
|
|
|
|
}
|
|
|
|
|
|
_drawWxmlInline (item, sorted, all, progress, results) {
|
|
|
let self = this;
|
|
|
let topOffset = 0;
|
|
|
let leftOffset = 0;
|
|
|
let lastTop = 0;
|
|
|
let limitLeft = (results ? results.left : 0);
|
|
|
let limitTop = (results ? results.top : 0);
|
|
|
let p = new Promise((resolve2, reject2) => {
|
|
|
let maxWidth = 0;
|
|
|
let minLeft = Infinity;
|
|
|
let maxRight = 0;
|
|
|
|
|
|
// 找出同一top下的最小left和最大right，得到最大的宽度，用于换行
|
|
|
Object.keys(sorted).forEach(top => {
|
|
|
let inlineList = sorted[top].filter(sub => sub.dataset.type && sub.dataset.type.indexOf('inline') > -1);
|
|
|
inlineList.forEach(sub => {
|
|
|
if(sub.left < minLeft) {
|
|
|
minLeft = sub.left
|
|
|
}
|
|
|
if(sub.right > maxRight) {
|
|
|
maxRight = sub.right;
|
|
|
}
|
|
|
})
|
|
|
});
|
|
|
maxWidth = Math.ceil((maxRight - minLeft) || self.width);
|
|
|
|
|
|
Object.keys(sorted).forEach((top, topIndex) => {
|
|
|
// 左 -> 右
|
|
|
let list = sorted[top].sort((a, b) => {
|
|
|
return (a.left - b.left);
|
|
|
});
|
|
|
|
|
|
// 换行的行内元素left放到后面，version2.0.6后无法获取高度，改用bottom值来判断是否换行了
|
|
|
let position = -1;
|
|
|
for(let i = 0, len = list.length; i < len; i++) {
|
|
|
if(list[i] && list[i + 1]) {
|
|
|
if(list[i].bottom > list[i + 1].bottom) {
|
|
|
position = i;
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if(position > -1) {
|
|
|
list.push(list.splice(position, 1)[0]);
|
|
|
}
|
|
|
|
|
|
let inlineList = list.filter(sub => sub.dataset.type && sub.dataset.type.indexOf('inline') > -1);
|
|
|
let originLeft = (inlineList[0] ? inlineList[0].left : 0);
|
|
|
// 换行后和top不相等时，认为是换行了，要清除左边距；当左偏移量大于最大宽度时，也要清除左边距; 当左偏移小于左边距时，也要清除
|
|
|
if (Math.abs(topOffset + lastTop - top) > 2 || leftOffset - originLeft - limitLeft >= maxWidth || leftOffset <= originLeft - limitLeft - 2) {
|
|
|
leftOffset = 0;
|
|
|
}
|
|
|
|
|
|
lastTop = +top;
|
|
|
topOffset = 0;
|
|
|
|
|
|
inlineList.forEach((sub, index) => {
|
|
|
sub = self._transferWxmlStyle(sub, item, limitLeft, limitTop);
|
|
|
sub.progress = progress;
|
|
|
let type = sub.dataset.type;
|
|
|
if (type === 'inline-text') {
|
|
|
let drawRes = self._drawWxmlInlineText(sub, leftOffset, maxWidth);
|
|
|
leftOffset = drawRes.leftOffset;
|
|
|
topOffset = drawRes.topOffset;
|
|
|
} else if (type === 'inline-image') {
|
|
|
let drawRes = self._drawWxmlImage(sub) || {};
|
|
|
leftOffset = drawRes.leftOffset || 0;
|
|
|
topOffset = drawRes.topOffset || 0;
|
|
|
}
|
|
|
});
|
|
|
});
|
|
|
resolve2();
|
|
|
})
|
|
|
|
|
|
all.push(p);
|
|
|
return all;
|
|
|
}
|
|
|
|
|
|
_drawWxmlInlineText (sub, leftOffset = 0, maxWidth) {
|
|
|
let text = sub.dataset.text || '';
|
|
|
if(sub.dataset.maxlength && text.length > sub.dataset.maxlength) {
|
|
|
text = text.substring(0, sub.dataset.maxlength) + '...';
|
|
|
}
|
|
|
|
|
|
let textData = {
|
|
|
text,
|
|
|
originX: sub.left,
|
|
|
x: leftOffset ? leftOffset : sub.left,
|
|
|
y: sub.top,
|
|
|
progress: sub.progress,
|
|
|
leftOffset: leftOffset,
|
|
|
maxWidth: maxWidth // 行内元素的最大宽度，取决于limit的宽度
|
|
|
}
|
|
|
|
|
|
if (sub.backgroundColor !== 'rgba(0, 0, 0, 0)') {
|
|
|
sub.background = sub.backgroundColor;
|
|
|
}else {
|
|
|
sub.background = 'rgba(0, 0, 0, 0)';
|
|
|
}
|
|
|
|
|
|
if(sub.dataset.background) {
|
|
|
sub.background = sub.dataset.background;
|
|
|
}
|
|
|
|
|
|
let res = this._drawText(textData, sub, null, null, 'inline-text', 'wxml');
|
|
|
|
|
|
return res
|
|
|
}
|
|
|
|
|
|
_drawWxmlText (sub, resolve, reject) {
|
|
|
let text = sub.dataset.text || '';
|
|
|
if(sub.dataset.maxlength && text.length > sub.dataset.maxlength) {
|
|
|
text = text.substring(0, sub.dataset.maxlength) + '...';
|
|
|
}
|
|
|
|
|
|
let textData = {
|
|
|
text,
|
|
|
x: sub.left,
|
|
|
y: sub.top,
|
|
|
progress: sub.progress
|
|
|
}
|
|
|
if (sub.backgroundColor !== 'rgba(0, 0, 0, 0)') {
|
|
|
sub.background = sub.backgroundColor;
|
|
|
}else {
|
|
|
sub.background = 'rgba(0, 0, 0, 0)';
|
|
|
}
|
|
|
|
|
|
if(sub.dataset.background) {
|
|
|
sub.background = sub.dataset.background;
|
|
|
}
|
|
|
|
|
|
this._drawText(textData, sub, resolve, reject, 'text', 'wxml');
|
|
|
}
|
|
|
|
|
|
_drawWxmlImage (sub, resolve, reject) {
|
|
|
let imageData = {
|
|
|
url: sub.dataset.url,
|
|
|
x: sub.left,
|
|
|
y: sub.top,
|
|
|
progress: sub.progress
|
|
|
}
|
|
|
|
|
|
let res = this._drawRect(imageData, sub, resolve, reject, 'image', 'inline-wxml');
|
|
|
|
|
|
return res
|
|
|
}
|
|
|
|
|
|
_drawWxmlCircleImage (sub, resolve, reject) {
|
|
|
let imageData = {
|
|
|
url: sub.dataset.url,
|
|
|
x: sub.left,
|
|
|
y: sub.top,
|
|
|
progress: sub.progress
|
|
|
}
|
|
|
sub.r = sub.width / 2;
|
|
|
|
|
|
this._drawCircle(imageData, sub, resolve, reject, true, 'wxml');
|
|
|
}
|
|
|
|
|
|
_drawWxmlBackgroundImage (sub, resolve, reject) {
|
|
|
let url = sub.dataset.url;
|
|
|
let index = this._findPicIndex(url);
|
|
|
url = index > -1 ? this.allPic[index].local : url;
|
|
|
let size = sub.backgroundSize.replace(/px/g, '').split(' ');
|
|
|
|
|
|
let imageData = {
|
|
|
url: url,
|
|
|
x: sub.left,
|
|
|
y: sub.top,
|
|
|
progress: sub.progress
|
|
|
}
|
|
|
|
|
|
this._drawRect(imageData, sub, resolve, reject, 'image', 'wxml');
|
|
|
}
|
|
|
|
|
|
_getWxml (item, style) {
|
|
|
let self = this;
|
|
|
let query;
|
|
|
if(this.obj) {
|
|
|
query = wx.createSelectorQuery().in(this.obj);
|
|
|
}else {
|
|
|
query = wx.createSelectorQuery();
|
|
|
}
|
|
|
|
|
|
let p1 = new Promise((resolve, reject) => {
|
|
|
// 会触发两次，要限制
|
|
|
let count = 0;
|
|
|
query.selectAll(`${item.class}`).fields({
|
|
|
dataset: true,
|
|
|
size: true,
|
|
|
rect: true,
|
|
|
computedStyle: ['width', 'height', 'font', 'fontSize', 'fontFamily', 'fontWeight', 'fontStyle', 'textAlign',
|
|
|
'color', 'lineHeight', 'border', 'borderColor', 'borderStyle', 'borderWidth', 'verticalAlign', 'boxShadow',
|
|
|
'background', 'backgroundColor', 'backgroundImage', 'backgroundPosition', 'backgroundSize', 'paddingLeft', 'paddingTop',
|
|
|
'paddingRight', 'paddingBottom'
|
|
|
]
|
|
|
}, (res) => {
|
|
|
if(count++ === 0) {
|
|
|
let formated = self._formatImage(res);
|
|
|
let list = formated.list;
|
|
|
res = formated.res;
|
|
|
|
|
|
self._preloadImage(list).then(result => {
|
|
|
resolve(res);
|
|
|
}).catch((res) => {
|
|
|
reject && reject({ errcode: 1009, errmsg: 'drawWxml preLoadImage error' });
|
|
|
});
|
|
|
}
|
|
|
}).exec();
|
|
|
});
|
|
|
|
|
|
let p2 = new Promise((resolve, reject) => {
|
|
|
if (!item.limit) {
|
|
|
resolve({ top: 0, width: self.width / self.zoom });
|
|
|
}
|
|
|
|
|
|
query.select(`${item.limit}`).fields({
|
|
|
dataset: true,
|
|
|
size: true,
|
|
|
rect: true,
|
|
|
}, (res) => {
|
|
|
resolve(res);
|
|
|
}).exec();
|
|
|
});
|
|
|
|
|
|
return Promise.all([p1, p2]);
|
|
|
}
|
|
|
|
|
|
_getLineHeight (style) {
|
|
|
let zoom = this.zoom;
|
|
|
if(style.dataset && style.dataset.type) {
|
|
|
zoom = 1;
|
|
|
}
|
|
|
let lineHeight;
|
|
|
if(!isNaN(style.lineHeight) && style.lineHeight > style.fontSize) {
|
|
|
lineHeight = style.lineHeight;
|
|
|
}else {
|
|
|
style.lineHeight = (style.lineHeight || '') + '';
|
|
|
lineHeight = +style.lineHeight.replace('px', '');
|
|
|
lineHeight = lineHeight ? lineHeight : (style.fontSize || 14) * 1.2;
|
|
|
}
|
|
|
return lineHeight * zoom;
|
|
|
}
|
|
|
|
|
|
_formatImage (res = []) {
|
|
|
let list = [];
|
|
|
res.forEach((item, index) => {
|
|
|
let dataset = item.dataset;
|
|
|
let uid = Util.getUid();
|
|
|
let filename = `${wx.env.USER_DATA_PATH}/${uid}.png`;
|
|
|
if ((dataset.type === "image" || dataset.type === "radius-image") && dataset.url) {
|
|
|
let sub = {
|
|
|
url: dataset.base64 ? filename : dataset.url,
|
|
|
isBase64: dataset.base64 ? dataset.url : false
|
|
|
}
|
|
|
|
|
|
res[index].dataset = Object.assign(res[index].dataset, sub);
|
|
|
list.push(sub)
|
|
|
} else if (dataset.type === 'background-image' && item.backgroundImage.indexOf('url') > -1) {
|
|
|
let url = item.backgroundImage.replace(/url\((\"|\')?/, '').replace(/(\"|\')?\)$/, '');
|
|
|
let sub = {
|
|
|
url: dataset.base64 ? filename : url,
|
|
|
isBase64: dataset.base64 ? url : false
|
|
|
}
|
|
|
res[index].dataset = Object.assign(res[index].dataset, sub);
|
|
|
list.push(sub)
|
|
|
}
|
|
|
});
|
|
|
|
|
|
return { list, res };
|
|
|
}
|
|
|
|
|
|
_updateProgress (distance) {
|
|
|
this.progressPercent += distance;
|
|
|
this.progress(this.progressPercent);
|
|
|
}
|
|
|
|
|
|
_sortListByTop (list = []) {
|
|
|
let sorted = {};
|
|
|
|
|
|
// 粗略地认为2px相差的元素在同一行
|
|
|
list.forEach((item, index) => {
|
|
|
let top = item.top;
|
|
|
if (!sorted[top]) {
|
|
|
if (sorted[top - 2]) {
|
|
|
top = top - 2;
|
|
|
}else if (sorted[top - 1]) {
|
|
|
top = top - 1;
|
|
|
} else if (sorted[top + 1]) {
|
|
|
top = top + 1;
|
|
|
} else if (sorted[top + 2]) {
|
|
|
top = top + 2;
|
|
|
} else {
|
|
|
sorted[top] = [];
|
|
|
}
|
|
|
}
|
|
|
sorted[top].push(item);
|
|
|
});
|
|
|
|
|
|
return sorted;
|
|
|
}
|
|
|
|
|
|
_parseNumber (number) {
|
|
|
return isNaN(number) ? +(number || '').replace('px', '') : number;
|
|
|
}
|
|
|
|
|
|
_transferWxmlStyle (sub, item, limitLeft, limitTop) {
|
|
|
let leftFix = (+sub.dataset.left || 0);
|
|
|
let topFix = (+sub.dataset.top || 0);
|
|
|
|
|
|
sub.width = this._parseNumber(sub.width);
|
|
|
sub.height = this._parseNumber(sub.height);
|
|
|
sub.left = this._parseNumber(sub.left) - limitLeft + (leftFix + (item.x || 0)) * this.zoom;
|
|
|
sub.top = this._parseNumber(sub.top) - limitTop + (topFix + (item.y || 0)) * this.zoom;
|
|
|
|
|
|
let padding = sub.dataset.padding || '0 0 0 0';
|
|
|
if (typeof padding === 'string') {
|
|
|
padding = Util.transferPadding(padding);
|
|
|
}
|
|
|
let paddingTop = Number(sub.paddingTop.replace('px', '')) + Number(padding[0]);
|
|
|
let paddingRight = Number(sub.paddingRight.replace('px', '')) + Number(padding[1]);
|
|
|
let paddingBottom = Number(sub.paddingBottom.replace('px', '')) + Number(padding[2]);
|
|
|
let paddingLeft = Number(sub.paddingLeft.replace('px', '')) + Number(padding[3]);
|
|
|
sub.padding = [paddingTop, paddingRight, paddingBottom, paddingLeft];
|
|
|
|
|
|
return sub;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 支持负值绘制，从右边计算
|
|
|
* @param {*} item
|
|
|
* @param {*} style
|
|
|
*/
|
|
|
_resetPositionX (item, style) {
|
|
|
let zoom = this.zoom;
|
|
|
let x = 0;
|
|
|
|
|
|
if(style.dataset && style.dataset.type) {
|
|
|
zoom = 1;
|
|
|
}
|
|
|
|
|
|
// 通过wxml获取的不需要重置坐标
|
|
|
if (item.x < 0 && item.type) {
|
|
|
x = this.width + item.x * zoom - style.width * zoom;
|
|
|
} else {
|
|
|
x = item.x * zoom;
|
|
|
}
|
|
|
|
|
|
if (parseInt(style.borderWidth)) {
|
|
|
x += parseInt(style.borderWidth)
|
|
|
}
|
|
|
|
|
|
return x + this.translateX;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 支持负值绘制，从底部计算
|
|
|
* @param {*} item
|
|
|
* @param {*} style
|
|
|
*/
|
|
|
_resetPositionY (item, style, textHeight) {
|
|
|
let zoom = this.zoom;
|
|
|
let y = 0;
|
|
|
|
|
|
if(style.dataset && style.dataset.type) {
|
|
|
zoom = 1;
|
|
|
}
|
|
|
|
|
|
if (item.y < 0) {
|
|
|
y = this.height + item.y * zoom - (textHeight ? textHeight : style.height * zoom)
|
|
|
} else {
|
|
|
y = item.y * zoom;
|
|
|
}
|
|
|
|
|
|
if (parseInt(style.borderWidth)) {
|
|
|
y += parseInt(style.borderWidth)
|
|
|
}
|
|
|
|
|
|
return y + this.translateY;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 文字的padding、text-align
|
|
|
* @param {*} item
|
|
|
* @param {*} style
|
|
|
* @param {*} textWidth
|
|
|
*/
|
|
|
_resetTextPositionX (item, style, textWidth, width) {
|
|
|
let textAlign = style.textAlign || 'left';
|
|
|
let x = item.x;
|
|
|
if (textAlign === 'center') {
|
|
|
x = (width - textWidth) / 2 + item.x;
|
|
|
} else if (textAlign === 'right') {
|
|
|
x = width - textWidth + item.x;
|
|
|
}
|
|
|
|
|
|
let left = style.padding ? (style.padding[3] || 0) : 0;
|
|
|
|
|
|
return x + left + this.translateX;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 文字的padding、text-align
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* @param {*} item
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|
* @param {*} style
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|
* @param {*} textWidth
|
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|
*/
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|
|
_resetTextPositionY (item, style, lineNum = 0) {
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|
let zoom = this.zoom;
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|
|
if(style.dataset && style.dataset.type) {
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|
zoom = 1;
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|
}
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let lineHeight = this._getLineHeight(style);
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|
let fontSize = Math.ceil((style.fontSize || 14) * zoom)
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let blockLineHeightFix = (style.dataset && style.dataset.type || '').indexOf('inline') > -1 ? 0 : (lineHeight - fontSize) / 2
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let top = style.padding ? (style.padding[0] || 0) : 0;
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// y + lineheight偏移 + 行数 + paddingTop + 整体画布位移
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return item.y + blockLineHeightFix + lineNum * lineHeight + top + this.translateY;
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|
}
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|
/**
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|
* 当文本超过宽度时，计算每一行应该绘制的文本
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|
* @param {*} text
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|
|
* @param {*} width
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|
|
* @param {*} singleLength
|
|
|
* @param {*} currentIndex
|
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|
* @param {*} widthOffset
|
|
|
*/
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|
|
_getTextSingleLine(text, width, singleLength, currentIndex = 0, widthOffset = 0) {
|
|
|
let offset = 0;
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|
|
let endIndex = currentIndex + singleLength + offset;
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|
|
let single = text.substring(currentIndex, endIndex);
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|
let singleWidth = this.measureWidth(single);
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|
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|
|
while (Math.round(widthOffset + singleWidth) > width) {
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|
offset--;
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|
endIndex = currentIndex + singleLength + offset;
|
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|
single = text.substring(currentIndex, endIndex);
|
|
|
singleWidth = this.measureWidth(single);
|
|
|
}
|
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|
|
|
|
return {
|
|
|
endIndex,
|
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|
single,
|
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|
singleWidth
|
|
|
}
|
|
|
}
|
|
|
|
|
|
_drawBorder (border, style, callback) {
|
|
|
let zoom = this.zoom;
|
|
|
if(style.dataset && style.dataset.type) {
|
|
|
zoom = 1;
|
|
|
}
|
|
|
border = Util.transferBorder(border);
|
|
|
|
|
|
if (border && border.width) {
|
|
|
// 空白阴影，清空掉边框的阴影
|
|
|
this._drawBoxShadow();
|
|
|
if (border) {
|
|
|
|
|
|
this.ctx.setLineWidth(border.width * zoom);
|
|
|
|
|
|
if (border.style === 'dashed') {
|
|
|
let dash = style.dash || [5, 5, 0];
|
|
|
let offset = dash[2] || 0;
|
|
|
let array = [dash[0] || 5, dash[1] || 5];
|
|
|
this.ctx.setLineDash(array, offset);
|
|
|
}
|
|
|
this.ctx.setStrokeStyle(border.color);
|
|
|
}
|
|
|
callback && callback(border);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
_drawBoxShadow (boxShadow, callback) {
|
|
|
boxShadow = Util.transferBoxShadow(boxShadow);
|
|
|
if (boxShadow) {
|
|
|
this.ctx.setShadow(boxShadow.offsetX, boxShadow.offsetY, boxShadow.blur, boxShadow.color);
|
|
|
}else {
|
|
|
this.ctx.setShadow(0, 0, 0, '#ffffff');
|
|
|
}
|
|
|
|
|
|
callback && callback(boxShadow || {});
|
|
|
}
|
|
|
|
|
|
_setFill (fill, callback) {
|
|
|
if(fill) {
|
|
|
if (typeof fill === 'string') {
|
|
|
this.ctx.setFillStyle(fill);
|
|
|
} else {
|
|
|
let line = fill.line;
|
|
|
let color = fill.color;
|
|
|
let grd = this.ctx.createLinearGradient(line[0], line[1], line[2], line[3]);
|
|
|
grd.addColorStop(0, color[0]);
|
|
|
grd.addColorStop(1, color[1]);
|
|
|
this.ctx.setFillStyle(grd);
|
|
|
}
|
|
|
callback && callback();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
_setStroke (stroke, callback) {
|
|
|
if(stroke) {
|
|
|
if (typeof stroke === 'string') {
|
|
|
this.ctx.setStrokeStyle(stroke);
|
|
|
} else {
|
|
|
let line = stroke.line;
|
|
|
let color = stroke.color;
|
|
|
let grd = this.ctx.createLinearGradient(line[0], line[1], line[2], line[3]);
|
|
|
grd.addColorStop(0, color[0]);
|
|
|
grd.addColorStop(1, color[1]);
|
|
|
this.ctx.setStrokeStyle(grd);
|
|
|
}
|
|
|
|
|
|
callback && callback();
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (!exports.__esModule) Object.defineProperty(exports, "__esModule", { value: true });exports.default = Wxml2Canvas;
|
|
|
}, function(modId) { var map = {"./util":1689036503193}; return __REQUIRE__(map[modId], modId); })
|
|
|
__DEFINE__(1689036503193, function(require, module, exports) {
|
|
|
/**
|
|
|
* 获取字符的长度，full为true时，一个汉字算两个长度
|
|
|
* @param {String} str
|
|
|
* @param {Boolean} full
|
|
|
*/
|
|
|
|
|
|
function getTextLength (str, full) {
|
|
|
let len = 0;
|
|
|
for (let i = 0; i < str.length; i++) {
|
|
|
let c = str.charCodeAt(i);
|
|
|
//单字节加1
|
|
|
if ((c >= 0x0001 && c <= 0x007e) || (0xff60 <= c && c <= 0xff9f)) {
|
|
|
len++;
|
|
|
}
|
|
|
else {
|
|
|
len += (full ? 2 : 1);
|
|
|
}
|
|
|
}
|
|
|
return len;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* rgba(255, 255, 255, 1) => #ffffff
|
|
|
* @param {String} color
|
|
|
*/
|
|
|
function transferColor (color = '') {
|
|
|
let res = '#';
|
|
|
color = color.replace(/^rgba?\(/, '').replace(/\)$/, '');
|
|
|
color = color.split(', ');
|
|
|
|
|
|
color.length > 3 ? color.length = 3 : '';
|
|
|
for(let item of color) {
|
|
|
item = parseInt(item || 0);
|
|
|
if(item < 10) {
|
|
|
res += ('0' + item)
|
|
|
}else {
|
|
|
res += (item.toString(16))
|
|
|
}
|
|
|
}
|
|
|
|
|
|
return res;
|
|
|
}
|
|
|
|
|
|
function transferBorder (border = '') {
|
|
|
let res = border.match(/(\w+)px\s(\w+)\s(.*)/);
|
|
|
let obj = {};
|
|
|
|
|
|
if(res) {
|
|
|
obj = {
|
|
|
width: +res[1],
|
|
|
style: res[2],
|
|
|
color: res[3]
|
|
|
}
|
|
|
}
|
|
|
|
|
|
return res ? obj : null;
|
|
|
}
|
|
|
|
|
|
|
|
|
/**
|
|
|
* 内边距，依次为上右下左
|
|
|
* @param {*} padding
|
|
|
*/
|
|
|
function transferPadding (padding = '0 0 0 0') {
|
|
|
padding = padding.split(' ');
|
|
|
for(let i = 0, len = padding.length; i < len; i++) {
|
|
|
padding[i] = +padding[i].replace('px', '');
|
|
|
}
|
|
|
|
|
|
return padding;
|
|
|
}
|
|
|
/**
|
|
|
* type1: 0, 25, 17, rgba(0, 0, 0, 0.3)
|
|
|
* type2: rgba(0, 0, 0, 0.3) 0px 25px 17px 0px => (0, 25, 17, rgba(0, 0, 0, 0.3))
|
|
|
* @param {*} shadow
|
|
|
*/
|
|
|
function transferBoxShadow(shadow = '', type) {
|
|
|
if(!shadow || shadow === 'none') return;
|
|
|
let color;
|
|
|
let split;
|
|
|
|
|
|
split = shadow.match(/(\w+)\s(\w+)\s(\w+)\s(rgb.*)/);
|
|
|
|
|
|
if (split) {
|
|
|
split.shift();
|
|
|
shadow = split;
|
|
|
color = split[3] || '#ffffff';
|
|
|
} else {
|
|
|
split = shadow.split(') ');
|
|
|
color = split[0] + ')'
|
|
|
shadow = split[1].split('px ');
|
|
|
}
|
|
|
|
|
|
return {
|
|
|
offsetX: +shadow[0] || 0,
|
|
|
offsetY: +shadow[1] || 0,
|
|
|
blur: +shadow[2] || 0,
|
|
|
color
|
|
|
}
|
|
|
}
|
|
|
|
|
|
function getUid(prefix) {
|
|
|
prefix = prefix || '';
|
|
|
|
|
|
return (
|
|
|
prefix +
|
|
|
'xxyxxyxx'.replace(/[xy]/g, c => {
|
|
|
let r = (Math.random() * 16) | 0;
|
|
|
let v = c === 'x' ? r : (r & 0x3) | 0x8;
|
|
|
return v.toString(16);
|
|
|
})
|
|
|
);
|
|
|
}
|
|
|
|
|
|
if (!exports.__esModule) Object.defineProperty(exports, "__esModule", { value: true });exports.default = {
|
|
|
getTextLength,
|
|
|
transferBorder,
|
|
|
transferColor,
|
|
|
transferPadding,
|
|
|
transferBoxShadow,
|
|
|
getUid
|
|
|
};
|
|
|
}, function(modId) { var map = {}; return __REQUIRE__(map[modId], modId); })
|
|
|
return __REQUIRE__(1689036503191);
|
|
|
})()
|
|
|
//miniprogram-npm-outsideDeps=[]
|
|
|
//# sourceMappingURL=index.js.map
|
