fix svg import bug

src/fonteditor/widget/loader.js

@@ -119,16 +119,16 @@ define(
             var fileReader = new FileReader();
 
             fileReader.onload = function (e) {
-                try {
+                //try {
                     var buffer = e.target.result;
                     var imported = svg2ttf(buffer);
                     fileReader = null;
                     options.success && options.success(imported);
-                }
-                catch (exp) {
-                    alert(exp.message);
-                    throw exp;
-                }
+                // }
+                // catch (exp) {
+                //     alert(exp.message);
+                //     throw exp;
+                // }
 
                 loading.hide();
             };

src/ttf/svg2ttfobject.js

@@ -18,6 +18,7 @@ define(
         var glyfAdjust = require('./util/glyfAdjust');
         var error = require('./error');
         var getEmptyttfObject = require('./getEmptyttfObject');
+        var reduceGlyf = require('./util/reduceGlyf');
 
         /**
          * 加载xml字符串
@@ -112,9 +113,13 @@ define(
 
 
             // 如果是svg格式字体，则去小数
+            // 由于svg格式导入时候会出现字形重复问题，这里进行优化
             if (ttf.from === 'svgfont' && ttf.head.unitsPerEm > 128) {
                 ttf.glyf.forEach(function (g) {
-                    glyfAdjust(g);
+                    if (g.contours) {
+                        reduceGlyf(g);
+                        glyfAdjust(g);
+                    }
                 });
             }
             // 否则重新计算字形大小，缩放到1024的em
@@ -126,6 +131,7 @@ define(
 
                 ttf.glyf.forEach(function (g) {
                     if (g.contours) {
+                        reduceGlyf(g);
                         var bound = computeBoundingBox.computePathBox.apply(null, g.contours);
                         if (bound) {
                             xMin = Math.min(xMin, bound.x);

src/ttf/util/reduceGlyf.js

@@ -24,12 +24,10 @@ define(
             var contour;
             var length;
             for (var j = contours.length - 1; j >= 0; j--) {
-                contour = contours[j];
-                reducePath(contour);
-                length =  contour.length;
+                contour = reducePath(contours[j]);
 
                 // 空轮廓
-                if (0 === length || 2 === length) {
+                if (contour.length <= 2) {
                     contours.splice(j, 1);
                     continue;
                 }