v1.2.9 Bugs fixes and nex generations

src/module/functions.js

@@ -8,11 +8,44 @@ module.exports = {
      * @param {number} width the default width
      * @param {string} font the font
      */
-    applyText(canvas, text, defaultFontSize, width, font) {
+    applyText(canvas, text, defaultFontSize, width, font){
         const ctx = canvas.getContext("2d");
         do {
-            ctx.font = `${(defaultFontSize -= 1)-3}px ${font}`;
+            ctx.font = `${(defaultFontSize -= 1)}px ${font}`;
         } while (ctx.measureText(text).width > width);
         return ctx.font;
+    },
+
+    wrapText(ctx, text, maxWidth) {
+        return new Promise(resolve => {
+            if (ctx.measureText(text).width < maxWidth) return resolve([text]);
+            if (ctx.measureText('W').width > maxWidth) return resolve(null);
+            const words = text.split(' ');
+            const lines = [];
+            let line = '';
+            while (words.length > 0) {
+                let split = false;
+                while (ctx.measureText(words[0]).width >= maxWidth) {
+                    const temp = words[0];
+                    words[0] = temp.slice(0, -1);
+                    if (split) {
+                        words[1] = `${temp.slice(-1)}${words[1]}`;
+                    }
+                    else {
+                        split = true;
+                        words.splice(1, 0, temp.slice(-1));
+                    }
+                }
+                if (ctx.measureText(`${line}${words[0]}`).width < maxWidth) {
+                    line += `${words.shift()} `;
+                }
+                else {
+                    lines.push(line.trim());
+                    line = '';
+                }
+                if (words.length === 0) lines.push(line.trim());
+            }
+            return resolve(lines);
+        });
     }
 }