更新

TongjiUniApp/node_modules/@jimp/plugin-print/src/measure-text.js

@@ -0,0 +1,36 @@
+export function measureText(font, text) {
+  let x = 0;
+
+  for (let i = 0; i < text.length; i++) {
+    if (font.chars[text[i]]) {
+      const kerning =
+        font.kernings[text[i]] && font.kernings[text[i]][text[i + 1]]
+          ? font.kernings[text[i]][text[i + 1]]
+          : 0;
+
+      x += (font.chars[text[i]].xadvance || 0) + kerning;
+    }
+  }
+
+  return x;
+}
+
+export function measureTextHeight(font, text, maxWidth) {
+  const words = text.split(' ');
+  let line = '';
+  let textTotalHeight = font.common.lineHeight;
+
+  for (let n = 0; n < words.length; n++) {
+    const testLine = line + words[n] + ' ';
+    const testWidth = measureText(font, testLine);
+
+    if (testWidth > maxWidth && n > 0) {
+      textTotalHeight += font.common.lineHeight;
+      line = words[n] + ' ';
+    } else {
+      line = testLine;
+    }
+  }
+
+  return textTotalHeight;
+}