我通过fengyuanchen记录了cropper的文件.如果旋转,我希望图像默认适合画布.但我无法找到实现这一目标的方法.知道如何实现这个功能吗？

我希望它是默认值：link

在这里查看问题演示：link

解决方法:

我修复了这种行为,但是出于我的特殊需要.我只需要一个旋转按钮,以90°的步幅旋转图像.出于其他目的,您可以扩展/更改我的修复.
它通过动态更改裁剪框尺寸在“严格”模式下工作.

这是我想要旋转图像时调用的函数.啊,此外错位错误也已修复.

var $image;

function initCropper() {
$image = $('.imageUploadPreviewWrap > img').cropper({
  autoCrop : true,
  strict: true,
  background: true,
  autoCropArea: 1,
  crop: function(e) {
  }
});
}

function rotateImage() {    
    //get data
    var data = $image.cropper('getCropBoxData');
    var contData = $image.cropper('getContainerData');
    var imageData = $image.cropper('getImageData');
    //set data of cropbox to avoid unwanted behavior due to strict mode
    data.width = 2;
    data.height = 2;
    data.top = 0;
    var leftNew = (contData.width / 2) - 1;
    data.left = leftNew;
    $image.cropper('setCropBoxData',data);
    //rotate
    $image.cropper('rotate', 90);
    //get canvas data
    var canvData = $image.cropper('getCanvasData');
    //calculate new height and width based on the container dimensions
    var heightOld = canvData.height;
    var heightNew = contData.height;
    var koef = heightNew / heightOld;
    var widthNew = canvData.width * koef;
    canvData.height = heightNew;
    canvData.width = widthNew;
    canvData.top = 0;
    if (canvData.width >= contData.width) {
      canvData.left = 0;
    }
    else {
      canvData.left = (contData.width - canvData.width) / 2;
    }
    $image.cropper('setCanvasData', canvData);
    //and now set cropper "back" to full crop
    data.left = 0;
    data.top = 0;
    data.width = canvData.width;
    data.height = canvData.height;
    $image.cropper('setCropBoxData',data);
  }