我想切换(意味着渲染所有矩形,然后删除所有)。 这里是我的代码片段:如何切换Fabricjs中的矩形或圆形?
// CWC is current working canvas.
console.log("Toggling Shapes's" + UIConstants.CWC);
// locate CWC.
var objects = UIConstants.CWC.getObjects();
var ShapesObjects = UIConstants.ShapesArray;
// check if array is empty
if (objects.length < 2) {
// iterating from 2 because 1st object is image.
// add Shapes from toggle array and make toggle array as empty.
if (ShapesObjects.length > 0) {
for (var idx = 0; idx < ShapesObjects.length; idx++) {
UIConstants.CWC.add(ShapesObjects[idx]);
}
}
} else {
// remove all Shapes and add to toggle array.
for (var idx = 1; idx < objects.length; idx++) {
ShapesObjects.push(objects[idx]);
// remove all previous handlers.
try {
UIConstants.CWC.setActiveObject(objects[idx]);
UIConstants.CWC.remove(UIConstants.CWC.getActiveObject());
} catch (E) {
}
}
}
不过,我得到这个为前4次点击运行后,它并没有为3-4次点击工作,然后再工作。 我的错误是什么?