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pixijs wordWrap and ellipse, support Asian charactors(breakWord = true)
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| export default function textEllipse( | |
| text: string, | |
| style: ConstructorParameters<typeof TextStyle>[0], | |
| maxLines: number = Infinity, | |
| ) { | |
| if (maxLines === Infinity) { | |
| return text; | |
| } | |
| const { wordWrapWidth = 750, breakWords } = style!; | |
| const pixiStyle = new TextStyle(style); | |
| const { lines } = TextMetrics.measureText(text, pixiStyle); | |
| let newText = text; | |
| const spliter = breakWords ? "" : " "; | |
| if (lines.length > maxLines) { | |
| const truncatedLines = lines.slice(0, maxLines); | |
| const lastLine = truncatedLines[truncatedLines.length - 1]; | |
| const words = lastLine.split(spliter); | |
| const toMeasure = `${spliter}\n...\n${words.join("\n")}`; | |
| const wordMetrics = TextMetrics.measureText(toMeasure, pixiStyle); | |
| const [spliterLength, dotsLength, ...wordLengths] = wordMetrics.lineWidths; | |
| const { text: newLastLine } = wordLengths.reduce( | |
| (data, wordLength, i) => { | |
| if (data.length + wordLength + spliterLength >= wordWrapWidth) { | |
| return { ...data, length: wordWrapWidth }; | |
| } | |
| return { | |
| text: `${data.text}${i > 0 ? spliter : ""}${words[i]}`, | |
| length: data.length + wordLength + spliterLength, | |
| }; | |
| }, | |
| { text: "", length: dotsLength }, | |
| ); | |
| truncatedLines[truncatedLines.length - 1] = `${newLastLine}...`; | |
| newText = truncatedLines.join("\n"); | |
| } | |
| return newText; | |
| } |
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