fix(g-canvas): autoDraw should be true by default

Author: dengfuping

packages/g-canvas/__tests__/unit/canvas-spec.js

@@ -56,8 +56,6 @@ describe('canvas test', () => {
 
   it('draw', (done) => {
     expect(getColor(canvas.get('context'), 10, 10)).eql('#000000');
-    // 默认的 draw 是延迟的所以要延迟测试
-    canvas.draw();
     expect(getColor(canvas.get('context'), 10, 10)).eql('#000000');
     setTimeout(() => {
       expect(getColor(canvas.get('context'), 10, 10)).eql('#ff0000');
@@ -88,7 +86,6 @@ describe('canvas test', () => {
         fill: 'red',
       },
     });
-    canvas.draw();
     let called = false;
     let clickShape = null;
     canvas.on('click', (ev) => {

packages/g-canvas/src/canvas.ts

@@ -38,7 +38,7 @@ class Canvas extends AbstractCanvas {
   getDefaultCfg() {
     const cfg = super.getDefaultCfg();
     // 是否自动绘制，不需要用户调用 draw 方法
-    cfg['autoDraw'] = false;
+    cfg['autoDraw'] = true;
     // 是否允许局部刷新图表
     cfg['localRefresh'] = true;
     cfg['refreshElements'] = [];