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- import * as imageHelper from '../helper/image.js';
- import { extend, retrieve2, retrieve3, reduce } from '../../core/util.js';
- import { getLineHeight, getWidth, parsePercent } from '../../contain/text.js';
- var STYLE_REG = /\{([a-zA-Z0-9_]+)\|([^}]*)\}/g;
- export function truncateText(text, containerWidth, font, ellipsis, options) {
- if (!containerWidth) {
- return '';
- }
- var textLines = (text + '').split('\n');
- options = prepareTruncateOptions(containerWidth, font, ellipsis, options);
- for (var i = 0, len = textLines.length; i < len; i++) {
- textLines[i] = truncateSingleLine(textLines[i], options);
- }
- return textLines.join('\n');
- }
- function prepareTruncateOptions(containerWidth, font, ellipsis, options) {
- options = options || {};
- var preparedOpts = extend({}, options);
- preparedOpts.font = font;
- ellipsis = retrieve2(ellipsis, '...');
- preparedOpts.maxIterations = retrieve2(options.maxIterations, 2);
- var minChar = preparedOpts.minChar = retrieve2(options.minChar, 0);
- preparedOpts.cnCharWidth = getWidth('国', font);
- var ascCharWidth = preparedOpts.ascCharWidth = getWidth('a', font);
- preparedOpts.placeholder = retrieve2(options.placeholder, '');
- var contentWidth = containerWidth = Math.max(0, containerWidth - 1);
- for (var i = 0; i < minChar && contentWidth >= ascCharWidth; i++) {
- contentWidth -= ascCharWidth;
- }
- var ellipsisWidth = getWidth(ellipsis, font);
- if (ellipsisWidth > contentWidth) {
- ellipsis = '';
- ellipsisWidth = 0;
- }
- contentWidth = containerWidth - ellipsisWidth;
- preparedOpts.ellipsis = ellipsis;
- preparedOpts.ellipsisWidth = ellipsisWidth;
- preparedOpts.contentWidth = contentWidth;
- preparedOpts.containerWidth = containerWidth;
- return preparedOpts;
- }
- function truncateSingleLine(textLine, options) {
- var containerWidth = options.containerWidth;
- var font = options.font;
- var contentWidth = options.contentWidth;
- if (!containerWidth) {
- return '';
- }
- var lineWidth = getWidth(textLine, font);
- if (lineWidth <= containerWidth) {
- return textLine;
- }
- for (var j = 0;; j++) {
- if (lineWidth <= contentWidth || j >= options.maxIterations) {
- textLine += options.ellipsis;
- break;
- }
- var subLength = j === 0
- ? estimateLength(textLine, contentWidth, options.ascCharWidth, options.cnCharWidth)
- : lineWidth > 0
- ? Math.floor(textLine.length * contentWidth / lineWidth)
- : 0;
- textLine = textLine.substr(0, subLength);
- lineWidth = getWidth(textLine, font);
- }
- if (textLine === '') {
- textLine = options.placeholder;
- }
- return textLine;
- }
- function estimateLength(text, contentWidth, ascCharWidth, cnCharWidth) {
- var width = 0;
- var i = 0;
- for (var len = text.length; i < len && width < contentWidth; i++) {
- var charCode = text.charCodeAt(i);
- width += (0 <= charCode && charCode <= 127) ? ascCharWidth : cnCharWidth;
- }
- return i;
- }
- export function parsePlainText(text, style) {
- text != null && (text += '');
- var overflow = style.overflow;
- var padding = style.padding;
- var font = style.font;
- var truncate = overflow === 'truncate';
- var calculatedLineHeight = getLineHeight(font);
- var lineHeight = retrieve2(style.lineHeight, calculatedLineHeight);
- var bgColorDrawn = !!(style.backgroundColor);
- var truncateLineOverflow = style.lineOverflow === 'truncate';
- var width = style.width;
- var lines;
- if (width != null && (overflow === 'break' || overflow === 'breakAll')) {
- lines = text ? wrapText(text, style.font, width, overflow === 'breakAll', 0).lines : [];
- }
- else {
- lines = text ? text.split('\n') : [];
- }
- var contentHeight = lines.length * lineHeight;
- var height = retrieve2(style.height, contentHeight);
- if (contentHeight > height && truncateLineOverflow) {
- var lineCount = Math.floor(height / lineHeight);
- lines = lines.slice(0, lineCount);
- }
- if (text && truncate && width != null) {
- var options = prepareTruncateOptions(width, font, style.ellipsis, {
- minChar: style.truncateMinChar,
- placeholder: style.placeholder
- });
- for (var i = 0; i < lines.length; i++) {
- lines[i] = truncateSingleLine(lines[i], options);
- }
- }
- var outerHeight = height;
- var contentWidth = 0;
- for (var i = 0; i < lines.length; i++) {
- contentWidth = Math.max(getWidth(lines[i], font), contentWidth);
- }
- if (width == null) {
- width = contentWidth;
- }
- var outerWidth = contentWidth;
- if (padding) {
- outerHeight += padding[0] + padding[2];
- outerWidth += padding[1] + padding[3];
- width += padding[1] + padding[3];
- }
- if (bgColorDrawn) {
- outerWidth = width;
- }
- return {
- lines: lines,
- height: height,
- outerWidth: outerWidth,
- outerHeight: outerHeight,
- lineHeight: lineHeight,
- calculatedLineHeight: calculatedLineHeight,
- contentWidth: contentWidth,
- contentHeight: contentHeight,
- width: width
- };
- }
- var RichTextToken = (function () {
- function RichTextToken() {
- }
- return RichTextToken;
- }());
- var RichTextLine = (function () {
- function RichTextLine(tokens) {
- this.tokens = [];
- if (tokens) {
- this.tokens = tokens;
- }
- }
- return RichTextLine;
- }());
- var RichTextContentBlock = (function () {
- function RichTextContentBlock() {
- this.width = 0;
- this.height = 0;
- this.contentWidth = 0;
- this.contentHeight = 0;
- this.outerWidth = 0;
- this.outerHeight = 0;
- this.lines = [];
- }
- return RichTextContentBlock;
- }());
- export { RichTextContentBlock };
- export function parseRichText(text, style) {
- var contentBlock = new RichTextContentBlock();
- text != null && (text += '');
- if (!text) {
- return contentBlock;
- }
- var topWidth = style.width;
- var topHeight = style.height;
- var overflow = style.overflow;
- var wrapInfo = (overflow === 'break' || overflow === 'breakAll') && topWidth != null
- ? { width: topWidth, accumWidth: 0, breakAll: overflow === 'breakAll' }
- : null;
- var lastIndex = STYLE_REG.lastIndex = 0;
- var result;
- while ((result = STYLE_REG.exec(text)) != null) {
- var matchedIndex = result.index;
- if (matchedIndex > lastIndex) {
- pushTokens(contentBlock, text.substring(lastIndex, matchedIndex), style, wrapInfo);
- }
- pushTokens(contentBlock, result[2], style, wrapInfo, result[1]);
- lastIndex = STYLE_REG.lastIndex;
- }
- if (lastIndex < text.length) {
- pushTokens(contentBlock, text.substring(lastIndex, text.length), style, wrapInfo);
- }
- var pendingList = [];
- var calculatedHeight = 0;
- var calculatedWidth = 0;
- var stlPadding = style.padding;
- var truncate = overflow === 'truncate';
- var truncateLine = style.lineOverflow === 'truncate';
- function finishLine(line, lineWidth, lineHeight) {
- line.width = lineWidth;
- line.lineHeight = lineHeight;
- calculatedHeight += lineHeight;
- calculatedWidth = Math.max(calculatedWidth, lineWidth);
- }
- outer: for (var i = 0; i < contentBlock.lines.length; i++) {
- var line = contentBlock.lines[i];
- var lineHeight = 0;
- var lineWidth = 0;
- for (var j = 0; j < line.tokens.length; j++) {
- var token = line.tokens[j];
- var tokenStyle = token.styleName && style.rich[token.styleName] || {};
- var textPadding = token.textPadding = tokenStyle.padding;
- var paddingH = textPadding ? textPadding[1] + textPadding[3] : 0;
- var font = token.font = tokenStyle.font || style.font;
- token.contentHeight = getLineHeight(font);
- var tokenHeight = retrieve2(tokenStyle.height, token.contentHeight);
- token.innerHeight = tokenHeight;
- textPadding && (tokenHeight += textPadding[0] + textPadding[2]);
- token.height = tokenHeight;
- token.lineHeight = retrieve3(tokenStyle.lineHeight, style.lineHeight, tokenHeight);
- token.align = tokenStyle && tokenStyle.align || style.align;
- token.verticalAlign = tokenStyle && tokenStyle.verticalAlign || 'middle';
- if (truncateLine && topHeight != null && calculatedHeight + token.lineHeight > topHeight) {
- if (j > 0) {
- line.tokens = line.tokens.slice(0, j);
- finishLine(line, lineWidth, lineHeight);
- contentBlock.lines = contentBlock.lines.slice(0, i + 1);
- }
- else {
- contentBlock.lines = contentBlock.lines.slice(0, i);
- }
- break outer;
- }
- var styleTokenWidth = tokenStyle.width;
- var tokenWidthNotSpecified = styleTokenWidth == null || styleTokenWidth === 'auto';
- if (typeof styleTokenWidth === 'string' && styleTokenWidth.charAt(styleTokenWidth.length - 1) === '%') {
- token.percentWidth = styleTokenWidth;
- pendingList.push(token);
- token.contentWidth = getWidth(token.text, font);
- }
- else {
- if (tokenWidthNotSpecified) {
- var textBackgroundColor = tokenStyle.backgroundColor;
- var bgImg = textBackgroundColor && textBackgroundColor.image;
- if (bgImg) {
- bgImg = imageHelper.findExistImage(bgImg);
- if (imageHelper.isImageReady(bgImg)) {
- token.width = Math.max(token.width, bgImg.width * tokenHeight / bgImg.height);
- }
- }
- }
- var remainTruncWidth = truncate && topWidth != null
- ? topWidth - lineWidth : null;
- if (remainTruncWidth != null && remainTruncWidth < token.width) {
- if (!tokenWidthNotSpecified || remainTruncWidth < paddingH) {
- token.text = '';
- token.width = token.contentWidth = 0;
- }
- else {
- token.text = truncateText(token.text, remainTruncWidth - paddingH, font, style.ellipsis, { minChar: style.truncateMinChar });
- token.width = token.contentWidth = getWidth(token.text, font);
- }
- }
- else {
- token.contentWidth = getWidth(token.text, font);
- }
- }
- token.width += paddingH;
- lineWidth += token.width;
- tokenStyle && (lineHeight = Math.max(lineHeight, token.lineHeight));
- }
- finishLine(line, lineWidth, lineHeight);
- }
- contentBlock.outerWidth = contentBlock.width = retrieve2(topWidth, calculatedWidth);
- contentBlock.outerHeight = contentBlock.height = retrieve2(topHeight, calculatedHeight);
- contentBlock.contentHeight = calculatedHeight;
- contentBlock.contentWidth = calculatedWidth;
- if (stlPadding) {
- contentBlock.outerWidth += stlPadding[1] + stlPadding[3];
- contentBlock.outerHeight += stlPadding[0] + stlPadding[2];
- }
- for (var i = 0; i < pendingList.length; i++) {
- var token = pendingList[i];
- var percentWidth = token.percentWidth;
- token.width = parseInt(percentWidth, 10) / 100 * contentBlock.width;
- }
- return contentBlock;
- }
- function pushTokens(block, str, style, wrapInfo, styleName) {
- var isEmptyStr = str === '';
- var tokenStyle = styleName && style.rich[styleName] || {};
- var lines = block.lines;
- var font = tokenStyle.font || style.font;
- var newLine = false;
- var strLines;
- var linesWidths;
- if (wrapInfo) {
- var tokenPadding = tokenStyle.padding;
- var tokenPaddingH = tokenPadding ? tokenPadding[1] + tokenPadding[3] : 0;
- if (tokenStyle.width != null && tokenStyle.width !== 'auto') {
- var outerWidth_1 = parsePercent(tokenStyle.width, wrapInfo.width) + tokenPaddingH;
- if (lines.length > 0) {
- if (outerWidth_1 + wrapInfo.accumWidth > wrapInfo.width) {
- strLines = str.split('\n');
- newLine = true;
- }
- }
- wrapInfo.accumWidth = outerWidth_1;
- }
- else {
- var res = wrapText(str, font, wrapInfo.width, wrapInfo.breakAll, wrapInfo.accumWidth);
- wrapInfo.accumWidth = res.accumWidth + tokenPaddingH;
- linesWidths = res.linesWidths;
- strLines = res.lines;
- }
- }
- else {
- strLines = str.split('\n');
- }
- for (var i = 0; i < strLines.length; i++) {
- var text = strLines[i];
- var token = new RichTextToken();
- token.styleName = styleName;
- token.text = text;
- token.isLineHolder = !text && !isEmptyStr;
- if (typeof tokenStyle.width === 'number') {
- token.width = tokenStyle.width;
- }
- else {
- token.width = linesWidths
- ? linesWidths[i]
- : getWidth(text, font);
- }
- if (!i && !newLine) {
- var tokens = (lines[lines.length - 1] || (lines[0] = new RichTextLine())).tokens;
- var tokensLen = tokens.length;
- (tokensLen === 1 && tokens[0].isLineHolder)
- ? (tokens[0] = token)
- : ((text || !tokensLen || isEmptyStr) && tokens.push(token));
- }
- else {
- lines.push(new RichTextLine([token]));
- }
- }
- }
- function isLatin(ch) {
- var code = ch.charCodeAt(0);
- return code >= 0x21 && code <= 0x17F;
- }
- var breakCharMap = reduce(',&?/;] '.split(''), function (obj, ch) {
- obj[ch] = true;
- return obj;
- }, {});
- function isWordBreakChar(ch) {
- if (isLatin(ch)) {
- if (breakCharMap[ch]) {
- return true;
- }
- return false;
- }
- return true;
- }
- function wrapText(text, font, lineWidth, isBreakAll, lastAccumWidth) {
- var lines = [];
- var linesWidths = [];
- var line = '';
- var currentWord = '';
- var currentWordWidth = 0;
- var accumWidth = 0;
- for (var i = 0; i < text.length; i++) {
- var ch = text.charAt(i);
- if (ch === '\n') {
- if (currentWord) {
- line += currentWord;
- accumWidth += currentWordWidth;
- }
- lines.push(line);
- linesWidths.push(accumWidth);
- line = '';
- currentWord = '';
- currentWordWidth = 0;
- accumWidth = 0;
- continue;
- }
- var chWidth = getWidth(ch, font);
- var inWord = isBreakAll ? false : !isWordBreakChar(ch);
- if (!lines.length
- ? lastAccumWidth + accumWidth + chWidth > lineWidth
- : accumWidth + chWidth > lineWidth) {
- if (!accumWidth) {
- if (inWord) {
- lines.push(currentWord);
- linesWidths.push(currentWordWidth);
- currentWord = ch;
- currentWordWidth = chWidth;
- }
- else {
- lines.push(ch);
- linesWidths.push(chWidth);
- }
- }
- else if (line || currentWord) {
- if (inWord) {
- if (!line) {
- line = currentWord;
- currentWord = '';
- currentWordWidth = 0;
- accumWidth = currentWordWidth;
- }
- lines.push(line);
- linesWidths.push(accumWidth - currentWordWidth);
- currentWord += ch;
- currentWordWidth += chWidth;
- line = '';
- accumWidth = currentWordWidth;
- }
- else {
- if (currentWord) {
- line += currentWord;
- currentWord = '';
- currentWordWidth = 0;
- }
- lines.push(line);
- linesWidths.push(accumWidth);
- line = ch;
- accumWidth = chWidth;
- }
- }
- continue;
- }
- accumWidth += chWidth;
- if (inWord) {
- currentWord += ch;
- currentWordWidth += chWidth;
- }
- else {
- if (currentWord) {
- line += currentWord;
- currentWord = '';
- currentWordWidth = 0;
- }
- line += ch;
- }
- }
- if (!lines.length && !line) {
- line = text;
- currentWord = '';
- currentWordWidth = 0;
- }
- if (currentWord) {
- line += currentWord;
- }
- if (line) {
- lines.push(line);
- linesWidths.push(accumWidth);
- }
- if (lines.length === 1) {
- accumWidth += lastAccumWidth;
- }
- return {
- accumWidth: accumWidth,
- lines: lines,
- linesWidths: linesWidths
- };
- }
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